feat(mms-mapping): 添加ICD一致性校验功能并重构设备类型管理

- 在MappingController中新增ICD一致性校验接口checkIcdJsonConsistency - 添加IcdConsistencyCheckService服务实现ICD映射JSON一致性校验逻辑 - 添加IcdConsistencyCheckRequest和IcdConsistencyCheckResponse相关数据传输对象 - 在CsIcdPathPO中新增icdContent字段存储ICD内容字节数组 - 在CsIcdPathMapper中新增selectIcdPathList方法支持关键词搜索 - 移除设备类型相关的控制器、服务接口及实现类(MmsDeviceTypeController等) - 更新.gitignore文件排除特定jar包路径 - 在pom.xml中添加device-types模块依赖和JNA库依赖 - 更新README.md文档添加device-types模块说明 - 重命名steady-DataView为steady-dataView模块名统一格式
2026-06-15 08:38:19 +08:00
parent 1edee2bf12
commit fd6e5097d7
91 changed files with 2620 additions and 882 deletions
--- a/steady/check-square/pom.xml
+++ b/steady/check-square/pom.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.njcn.gather</groupId>
+        <artifactId>steady</artifactId>
+        <version>1.0.0</version>
+    </parent>
+
+    <artifactId>check-square</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.njcn.gather</groupId>
+            <artifactId>steady-dataView</artifactId>
+            <version>1.0.0</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.njcn</groupId>
+            <artifactId>njcn-common</artifactId>
+            <version>0.0.1</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.njcn</groupId>
+            <artifactId>mybatis-plus</artifactId>
+            <version>0.0.1</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.njcn</groupId>
+            <artifactId>spingboot2.3.12</artifactId>
+            <version>2.3.12</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareCalculator.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareCalculator.java
@@ -0,0 +1,62 @@
+package com.njcn.gather.steady.checksquare.component;
+
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareSegmentVO;
+import org.springframework.stereotype.Component;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * 数据校验连续性计算组件。
+ */
+@Component
+public class SteadyChecksquareCalculator {
+
+    public static final String STATUS_NORMAL = "NORMAL";
+    public static final String STATUS_MISSING = "MISSING";
+    private static final DateTimeFormatter OUTPUT_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+
+    public List<SteadyChecksquareSegmentVO> buildSegments(List<LocalDateTime> slots, Set<LocalDateTime> actualSlots,
+                                                          int intervalMinutes) {
+        List<SteadyChecksquareSegmentVO> result = new ArrayList<SteadyChecksquareSegmentVO>();
+        if (slots == null || slots.isEmpty()) {
+            return result;
+        }
+        String currentStatus = resolveStatus(slots.get(0), actualSlots);
+        LocalDateTime segmentStart = slots.get(0);
+        LocalDateTime previousSlot = slots.get(0);
+        int pointCount = 1;
+        for (int i = 1; i < slots.size(); i++) {
+            LocalDateTime slot = slots.get(i);
+            String status = resolveStatus(slot, actualSlots);
+            if (!currentStatus.equals(status)) {
+                result.add(buildSegment(segmentStart, previousSlot, currentStatus, pointCount, intervalMinutes));
+                segmentStart = slot;
+                pointCount = 0;
+                currentStatus = status;
+            }
+            previousSlot = slot;
+            pointCount++;
+        }
+        result.add(buildSegment(segmentStart, previousSlot, currentStatus, pointCount, intervalMinutes));
+        return result;
+    }
+
+    private SteadyChecksquareSegmentVO buildSegment(LocalDateTime startTime, LocalDateTime endTime, String status,
+                                                   int pointCount, int intervalMinutes) {
+        SteadyChecksquareSegmentVO segment = new SteadyChecksquareSegmentVO();
+        segment.setStartTime(OUTPUT_TIME_FORMATTER.format(startTime));
+        segment.setEndTime(OUTPUT_TIME_FORMATTER.format(endTime));
+        segment.setStatus(status);
+        segment.setMissingPointCount(STATUS_MISSING.equals(status) ? pointCount : 0);
+        segment.setDurationMinutes(pointCount * intervalMinutes);
+        return segment;
+    }
+
+    private String resolveStatus(LocalDateTime slot, Set<LocalDateTime> actualSlots) {
+        return actualSlots != null && actualSlots.contains(slot) ? STATUS_NORMAL : STATUS_MISSING;
+    }
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareHarmonicParityRuleComponent.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareHarmonicParityRuleComponent.java
@@ -0,0 +1,193 @@
+package com.njcn.gather.steady.checksquare.component;
+
+import com.njcn.gather.steady.checksquare.pojo.bo.SteadyChecksquareValuePointBO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareHarmonicParityDetailVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareHarmonicParityRuleVO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendIndicatorDefinitionBO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 谐波偶次与局部奇次基线关系规则。
+ */
+@Component
+@RequiredArgsConstructor
+public class SteadyChecksquareHarmonicParityRuleComponent {
+
+    private static final DateTimeFormatter OUTPUT_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+    private static final BigDecimal THRESHOLD_MULTIPLIER = new BigDecimal("2");
+    private static final BigDecimal EVEN_HARMONIC_DEADBAND_VALUE = new BigDecimal("0.1");
+    private static final int MIN_ODD_REFERENCE_COUNT = 2;
+
+    private final SteadyChecksquareInfluxQueryComponent influxQueryComponent;
+
+    public SteadyChecksquareHarmonicParityRuleVO check(String lineId, SteadyTrendIndicatorDefinitionBO indicator,
+                                                       LocalDateTime startTime, LocalDateTime endTime,
+                                                       int intervalMinutes) {
+        SteadyChecksquareHarmonicParityRuleVO result = new SteadyChecksquareHarmonicParityRuleVO();
+        if (!supportHarmonicParityRule(indicator)) {
+            return result;
+        }
+        for (String statType : indicator.getSupportStats()) {
+            for (String phase : indicator.getPhaseCodes()) {
+                Map<Integer, Map<LocalDateTime, BigDecimal>> valueMap = queryOrderValueMap(lineId, indicator, phase,
+                        statType, startTime, endTime, intervalMinutes);
+                appendAbnormalDetails(result, phase, statType, indicator, valueMap);
+            }
+        }
+        result.setAbnormalPointCount(result.getAbnormalDetails().size());
+        result.setAbnormal(result.getAbnormalPointCount() > 0);
+        return result;
+    }
+
+    private boolean supportHarmonicParityRule(SteadyTrendIndicatorDefinitionBO indicator) {
+        return indicator != null && Boolean.TRUE.equals(indicator.getHarmonic())
+                && indicator.getHarmonicOrderStart() != null && indicator.getHarmonicOrderEnd() != null;
+    }
+
+    private Map<Integer, Map<LocalDateTime, BigDecimal>> queryOrderValueMap(String lineId,
+                                                                            SteadyTrendIndicatorDefinitionBO indicator,
+                                                                            String phase, String statType,
+                                                                            LocalDateTime startTime,
+                                                                            LocalDateTime endTime,
+                                                                            int intervalMinutes) {
+        Map<Integer, Map<LocalDateTime, BigDecimal>> result = new LinkedHashMap<Integer, Map<LocalDateTime, BigDecimal>>();
+        List<SteadyTrendResolvedFieldBO> fields = new ArrayList<SteadyTrendResolvedFieldBO>();
+        for (int order = indicator.getHarmonicOrderStart(); order <= indicator.getHarmonicOrderEnd(); order++) {
+            fields.add(buildResolvedField(lineId, indicator, order, phase, statType));
+        }
+        Map<String, List<SteadyChecksquareValuePointBO>> fieldValueMap =
+                influxQueryComponent.queryValuePointMap(fields, startTime, endTime, intervalMinutes);
+        if (fieldValueMap == null) {
+            fieldValueMap = Collections.emptyMap();
+        }
+        for (int order = indicator.getHarmonicOrderStart(); order <= indicator.getHarmonicOrderEnd(); order++) {
+            result.put(order, toValueMap(fieldValueMap.get(indicator.getHarmonicFieldPrefix() + "_" + order)));
+        }
+        return result;
+    }
+
+    private void appendAbnormalDetails(SteadyChecksquareHarmonicParityRuleVO result, String phase, String statType,
+                                       SteadyTrendIndicatorDefinitionBO indicator,
+                                       Map<Integer, Map<LocalDateTime, BigDecimal>> valueMap) {
+        for (int order = firstEvenOrder(indicator.getHarmonicOrderStart()); order <= indicator.getHarmonicOrderEnd(); order += 2) {
+            Map<LocalDateTime, BigDecimal> evenValues = valueMap.get(order);
+            if (evenValues == null || evenValues.isEmpty()) {
+                continue;
+            }
+            for (Map.Entry<LocalDateTime, BigDecimal> entry : evenValues.entrySet()) {
+                appendAbnormalDetailIfNecessary(result, phase, statType, order, entry.getKey(), entry.getValue(), valueMap);
+            }
+        }
+    }
+
+    private void appendAbnormalDetailIfNecessary(SteadyChecksquareHarmonicParityRuleVO result, String phase,
+                                                  String statType, int evenOrder, LocalDateTime time,
+                                                  BigDecimal evenValue,
+                                                  Map<Integer, Map<LocalDateTime, BigDecimal>> valueMap) {
+        if (evenValue == null || evenValue.compareTo(EVEN_HARMONIC_DEADBAND_VALUE) <= 0) {
+            return;
+        }
+        List<Integer> oddOrders = buildOddReferenceOrders(evenOrder);
+        List<BigDecimal> oddValues = new ArrayList<BigDecimal>();
+        List<Integer> effectiveOddOrders = new ArrayList<Integer>();
+        for (Integer oddOrder : oddOrders) {
+            Map<LocalDateTime, BigDecimal> values = valueMap.get(oddOrder);
+            BigDecimal oddValue = values == null ? null : values.get(time);
+            if (oddValue != null) {
+                effectiveOddOrders.add(oddOrder);
+                oddValues.add(oddValue);
+            }
+        }
+        if (oddValues.size() < MIN_ODD_REFERENCE_COUNT) {
+            return;
+        }
+        BigDecimal median = calculateMedian(oddValues);
+        if (median == null || evenValue.compareTo(median.multiply(THRESHOLD_MULTIPLIER)) <= 0) {
+            return;
+        }
+        result.getAbnormalDetails().add(buildDetail(time, phase, statType, evenOrder, evenValue,
+                effectiveOddOrders, oddValues, median));
+    }
+
+    private SteadyChecksquareHarmonicParityDetailVO buildDetail(LocalDateTime time, String phase, String statType,
+                                                                Integer evenOrder, BigDecimal evenValue,
+                                                                List<Integer> oddOrders, List<BigDecimal> oddValues,
+                                                                BigDecimal median) {
+        SteadyChecksquareHarmonicParityDetailVO detail = new SteadyChecksquareHarmonicParityDetailVO();
+        detail.setTime(OUTPUT_TIME_FORMATTER.format(time));
+        detail.setPhase(phase);
+        detail.setStatType(statType);
+        detail.setEvenHarmonicOrder(evenOrder);
+        detail.setEvenValue(evenValue);
+        detail.setOddHarmonicOrders(new ArrayList<Integer>(oddOrders));
+        detail.setOddValues(new ArrayList<BigDecimal>(oddValues));
+        detail.setOddMedianValue(median);
+        detail.setThresholdMultiplier(THRESHOLD_MULTIPLIER);
+        return detail;
+    }
+
+    private List<Integer> buildOddReferenceOrders(int evenOrder) {
+        List<Integer> result = new ArrayList<Integer>();
+        result.add(evenOrder - 3);
+        result.add(evenOrder - 1);
+        result.add(evenOrder + 1);
+        result.add(evenOrder + 3);
+        return result;
+    }
+
+    private BigDecimal calculateMedian(List<BigDecimal> values) {
+        if (values == null || values.isEmpty()) {
+            return null;
+        }
+        List<BigDecimal> sorted = new ArrayList<BigDecimal>(values);
+        Collections.sort(sorted, Comparator.naturalOrder());
+        int middleIndex = sorted.size() / 2;
+        if (sorted.size() % 2 == 1) {
+            return sorted.get(middleIndex);
+        }
+        return sorted.get(middleIndex - 1).add(sorted.get(middleIndex)).divide(new BigDecimal("2"));
+    }
+
+    private int firstEvenOrder(int startOrder) {
+        return startOrder % 2 == 0 ? startOrder : startOrder + 1;
+    }
+
+    private Map<LocalDateTime, BigDecimal> toValueMap(List<SteadyChecksquareValuePointBO> points) {
+        Map<LocalDateTime, BigDecimal> result = new LinkedHashMap<LocalDateTime, BigDecimal>();
+        if (points == null || points.isEmpty()) {
+            return result;
+        }
+        for (SteadyChecksquareValuePointBO point : points) {
+            if (point != null && point.getTime() != null && point.getValue() != null) {
+                result.put(point.getTime(), point.getValue());
+            }
+        }
+        return result;
+    }
+
+    private SteadyTrendResolvedFieldBO buildResolvedField(String lineId, SteadyTrendIndicatorDefinitionBO indicator,
+                                                          Integer harmonicOrder, String phase, String statType) {
+        SteadyTrendResolvedFieldBO field = new SteadyTrendResolvedFieldBO();
+        field.setMeasurement(indicator.getTableName());
+        field.setField(indicator.getHarmonicFieldPrefix() + "_" + harmonicOrder);
+        field.setLineId(lineId);
+        field.setIndicatorCode(indicator.getIndicatorCode());
+        field.setIndicatorName(indicator.getName());
+        field.setPhase(phase);
+        field.setStatType(statType);
+        field.setUnit(indicator.getUnit());
+        return field;
+    }
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareInfluxQueryComponent.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareInfluxQueryComponent.java
@@ -0,0 +1,419 @@
+package com.njcn.gather.steady.checksquare.component;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.exception.BusinessException;
+import com.njcn.gather.steady.checksquare.pojo.bo.SteadyChecksquareValuePointBO;
+import com.njcn.gather.steady.datavie.config.SteadyInfluxDbProperties;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.math.BigDecimal;
+import java.net.HttpURLConnection;
+import java.net.URLEncoder;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.time.LocalDateTime;
+import java.time.OffsetDateTime;
+import java.time.ZoneOffset;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * 数据校验 InfluxDB 查询组件。
+ */
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class SteadyChecksquareInfluxQueryComponent {
+
+    private static final DateTimeFormatter INFLUX_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss'Z'");
+    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
+    private static final int QUERY_WINDOW_DAYS = 1;
+    private static final ThreadLocal<Map<String, List<SteadyChecksquareValuePointBO>>> REQUEST_VALUE_CACHE =
+            new ThreadLocal<Map<String, List<SteadyChecksquareValuePointBO>>>();
+
+    private final SteadyInfluxDbProperties properties;
+
+    public void enableRequestCache() {
+        REQUEST_VALUE_CACHE.set(new LinkedHashMap<String, List<SteadyChecksquareValuePointBO>>());
+    }
+
+    public void clearRequestCache() {
+        REQUEST_VALUE_CACHE.remove();
+    }
+
+    public Set<LocalDateTime> queryExistingSlots(SteadyTrendResolvedFieldBO field, LocalDateTime startTime,
+                                                 LocalDateTime endTime, int intervalMinutes) {
+        List<SteadyChecksquareValuePointBO> points = queryValuePoints(field, startTime, endTime, intervalMinutes);
+        Set<LocalDateTime> result = new HashSet<LocalDateTime>();
+        for (SteadyChecksquareValuePointBO point : points) {
+            if (point != null && point.getTime() != null) {
+                result.add(point.getTime());
+            }
+        }
+        return result;
+    }
+
+    public List<SteadyChecksquareValuePointBO> queryValuePoints(SteadyTrendResolvedFieldBO field, LocalDateTime startTime,
+                                                                LocalDateTime endTime, int intervalMinutes) {
+        validateConfig();
+        String query = buildValuePointQuery(field, startTime, endTime);
+        String cacheKey = buildCacheKey(query, intervalMinutes);
+        Map<String, List<SteadyChecksquareValuePointBO>> cache = REQUEST_VALUE_CACHE.get();
+        if (cache != null && cache.containsKey(cacheKey)) {
+            return new ArrayList<SteadyChecksquareValuePointBO>(cache.get(cacheKey));
+        }
+        long startMillis = System.currentTimeMillis();
+        log.info("数据校验指标值 InfluxDB 查询开始，measurement={}，field={}，lineId={}，phase={}，statType={}，query={}",
+                field.getMeasurement(), field.getField(), field.getLineId(), field.getPhase(), field.getStatType(), query);
+        try {
+            List<SteadyChecksquareValuePointBO> points = queryValuePointsByWindow(field, startTime, endTime, intervalMinutes);
+            if (cache != null) {
+                cache.put(cacheKey, new ArrayList<SteadyChecksquareValuePointBO>(points));
+            }
+            log.info("数据校验指标值 InfluxDB 查询结束，pointCount={}，costMs={}", points.size(), System.currentTimeMillis() - startMillis);
+            return points;
+        } catch (RuntimeException ex) {
+            log.warn("数据校验指标值 InfluxDB 查询异常，costMs={}，error={}", System.currentTimeMillis() - startMillis, ex.getMessage());
+            throw ex;
+        }
+    }
+
+    public Map<String, List<SteadyChecksquareValuePointBO>> queryValuePointMap(List<SteadyTrendResolvedFieldBO> fields,
+                                                                               LocalDateTime startTime,
+                                                                               LocalDateTime endTime,
+                                                                               int intervalMinutes) {
+        Map<String, List<SteadyChecksquareValuePointBO>> result =
+                new LinkedHashMap<String, List<SteadyChecksquareValuePointBO>>();
+        if (fields == null || fields.isEmpty()) {
+            return result;
+        }
+        if (fields.size() == 1) {
+            SteadyTrendResolvedFieldBO field = fields.get(0);
+            result.put(field.getField(), queryValuePoints(field, startTime, endTime, intervalMinutes));
+            return result;
+        }
+        validateConfig();
+        Map<String, List<SteadyChecksquareValuePointBO>> cache = REQUEST_VALUE_CACHE.get();
+        List<SteadyTrendResolvedFieldBO> missingFields = new ArrayList<SteadyTrendResolvedFieldBO>();
+        for (SteadyTrendResolvedFieldBO field : fields) {
+            String cacheKey = buildCacheKey(buildValuePointQuery(field, startTime, endTime), intervalMinutes);
+            if (cache != null && cache.containsKey(cacheKey)) {
+                result.put(field.getField(), new ArrayList<SteadyChecksquareValuePointBO>(cache.get(cacheKey)));
+            } else {
+                missingFields.add(field);
+            }
+        }
+        if (!missingFields.isEmpty()) {
+            String query = buildBatchValuePointQuery(missingFields, startTime, endTime);
+            long startMillis = System.currentTimeMillis();
+            SteadyTrendResolvedFieldBO first = missingFields.get(0);
+            log.info("数据校验指标值 InfluxDB 批量查询开始，measurement={}，fieldCount={}，lineId={}，phase={}，statType={}，query={}",
+                    first.getMeasurement(), missingFields.size(), first.getLineId(), first.getPhase(), first.getStatType(), query);
+            try {
+                Map<String, List<SteadyChecksquareValuePointBO>> queried =
+                        queryBatchValuePointsByWindow(missingFields, startTime, endTime, intervalMinutes);
+                for (SteadyTrendResolvedFieldBO field : missingFields) {
+                    List<SteadyChecksquareValuePointBO> points = queried.get(field.getField());
+                    if (points == null) {
+                        points = new ArrayList<SteadyChecksquareValuePointBO>();
+                    }
+                    result.put(field.getField(), points);
+                    if (cache != null) {
+                        String cacheKey = buildCacheKey(buildValuePointQuery(field, startTime, endTime), intervalMinutes);
+                        cache.put(cacheKey, new ArrayList<SteadyChecksquareValuePointBO>(points));
+                    }
+                }
+                log.info("数据校验指标值 InfluxDB 批量查询结束，fieldCount={}，costMs={}",
+                        missingFields.size(), System.currentTimeMillis() - startMillis);
+            } catch (RuntimeException ex) {
+                log.warn("数据校验指标值 InfluxDB 批量查询异常，fieldCount={}，costMs={}，error={}",
+                        missingFields.size(), System.currentTimeMillis() - startMillis, ex.getMessage());
+                throw ex;
+            }
+        }
+        return result;
+    }
+
+    public String buildChecksquareQuery(SteadyTrendResolvedFieldBO field, LocalDateTime startTime, LocalDateTime endTime) {
+        return buildValuePointQuery(field, startTime, endTime);
+    }
+
+    private String buildCacheKey(String query, int intervalMinutes) {
+        return query + "|intervalMinutes=" + intervalMinutes;
+    }
+
+    private List<SteadyChecksquareValuePointBO> queryValuePointsByWindow(SteadyTrendResolvedFieldBO field,
+                                                                          LocalDateTime startTime,
+                                                                          LocalDateTime endTime,
+                                                                          int intervalMinutes) {
+        List<SteadyChecksquareValuePointBO> result = new ArrayList<SteadyChecksquareValuePointBO>();
+        LocalDateTime windowStart = startTime;
+        while (!windowStart.isAfter(endTime)) {
+            LocalDateTime windowEnd = min(windowStart.plusDays(QUERY_WINDOW_DAYS).minusNanos(1), endTime);
+            result.addAll(parseValuePoints(executeQuery(buildValuePointQuery(field, windowStart, windowEnd)), intervalMinutes));
+            windowStart = windowEnd.plusNanos(1);
+        }
+        return result;
+    }
+
+    private Map<String, List<SteadyChecksquareValuePointBO>> queryBatchValuePointsByWindow(List<SteadyTrendResolvedFieldBO> fields,
+                                                                                           LocalDateTime startTime,
+                                                                                           LocalDateTime endTime,
+                                                                                           int intervalMinutes) {
+        Map<String, List<SteadyChecksquareValuePointBO>> result =
+                new LinkedHashMap<String, List<SteadyChecksquareValuePointBO>>();
+        for (SteadyTrendResolvedFieldBO field : fields) {
+            result.put(field.getField(), new ArrayList<SteadyChecksquareValuePointBO>());
+        }
+        LocalDateTime windowStart = startTime;
+        while (!windowStart.isAfter(endTime)) {
+            LocalDateTime windowEnd = min(windowStart.plusDays(QUERY_WINDOW_DAYS).minusNanos(1), endTime);
+            Map<String, List<SteadyChecksquareValuePointBO>> windowResult =
+                    parseBatchValuePoints(executeQuery(buildBatchValuePointQuery(fields, windowStart, windowEnd)), intervalMinutes);
+            for (Map.Entry<String, List<SteadyChecksquareValuePointBO>> entry : windowResult.entrySet()) {
+                List<SteadyChecksquareValuePointBO> points = result.get(entry.getKey());
+                if (points == null) {
+                    points = new ArrayList<SteadyChecksquareValuePointBO>();
+                    result.put(entry.getKey(), points);
+                }
+                points.addAll(entry.getValue());
+            }
+            windowStart = windowEnd.plusNanos(1);
+        }
+        return result;
+    }
+
+    private LocalDateTime min(LocalDateTime first, LocalDateTime second) {
+        return first.isAfter(second) ? second : first;
+    }
+
+    public String buildValuePointQuery(SteadyTrendResolvedFieldBO field, LocalDateTime startTime, LocalDateTime endTime) {
+        StringBuilder sql = new StringBuilder();
+        sql.append("SELECT \"").append(field.getField()).append("\" AS \"value\"");
+        sql.append(" FROM \"").append(field.getMeasurement()).append("\"");
+        sql.append(" WHERE time >= '").append(INFLUX_TIME_FORMATTER.format(startTime)).append("'");
+        sql.append(" AND time <= '").append(INFLUX_TIME_FORMATTER.format(endTime)).append("'");
+        sql.append(" AND \"line_id\" = '").append(escapeTagValue(field.getLineId())).append("'");
+        sql.append(" AND \"phasic_type\" = '").append(escapeTagValue(field.getPhase())).append("'");
+        if (hasValueTypeTag(field.getMeasurement())) {
+            sql.append(" AND \"value_type\" = '").append(resolveValueType(field.getStatType())).append("'");
+        }
+        sql.append(" ORDER BY time ASC");
+        return sql.toString();
+    }
+
+    public String buildBatchValuePointQuery(List<SteadyTrendResolvedFieldBO> fields, LocalDateTime startTime, LocalDateTime endTime) {
+        SteadyTrendResolvedFieldBO first = fields.get(0);
+        StringBuilder sql = new StringBuilder("SELECT ");
+        for (int i = 0; i < fields.size(); i++) {
+            SteadyTrendResolvedFieldBO field = fields.get(i);
+            if (i > 0) {
+                sql.append(", ");
+            }
+            sql.append("\"").append(field.getField()).append("\" AS \"").append(field.getField()).append("\"");
+        }
+        sql.append(" FROM \"").append(first.getMeasurement()).append("\"");
+        sql.append(" WHERE time >= '").append(INFLUX_TIME_FORMATTER.format(startTime)).append("'");
+        sql.append(" AND time <= '").append(INFLUX_TIME_FORMATTER.format(endTime)).append("'");
+        sql.append(" AND \"line_id\" = '").append(escapeTagValue(first.getLineId())).append("'");
+        sql.append(" AND \"phasic_type\" = '").append(escapeTagValue(first.getPhase())).append("'");
+        if (hasValueTypeTag(first.getMeasurement())) {
+            sql.append(" AND \"value_type\" = '").append(resolveValueType(first.getStatType())).append("'");
+        }
+        sql.append(" ORDER BY time ASC");
+        return sql.toString();
+    }
+
+    private List<SteadyChecksquareValuePointBO> parseValuePoints(String body, int intervalMinutes) {
+        try {
+            JsonNode root = OBJECT_MAPPER.readTree(body);
+            JsonNode values = root.path("results").path(0).path("series").path(0).path("values");
+            List<SteadyChecksquareValuePointBO> result = new ArrayList<SteadyChecksquareValuePointBO>();
+            if (!values.isArray()) {
+                return result;
+            }
+            for (JsonNode value : values) {
+                if (value.size() < 2 || value.get(1).isNull()) {
+                    continue;
+                }
+                LocalDateTime time = parseInfluxTime(value.get(0).asText());
+                if (time == null) {
+                    continue;
+                }
+                SteadyChecksquareValuePointBO point = new SteadyChecksquareValuePointBO();
+                point.setTime(alignToPreviousSlot(time, intervalMinutes));
+                point.setValue(new BigDecimal(value.get(1).asText()));
+                result.add(point);
+            }
+            return result;
+        } catch (IOException ex) {
+            throw fail("InfluxDB 返回结果解析失败：" + ex.getMessage());
+        } catch (NumberFormatException ex) {
+            throw fail("InfluxDB 返回指标值格式不正确：" + ex.getMessage());
+        }
+    }
+
+    private Map<String, List<SteadyChecksquareValuePointBO>> parseBatchValuePoints(String body, int intervalMinutes) {
+        try {
+            JsonNode root = OBJECT_MAPPER.readTree(body);
+            JsonNode series = root.path("results").path(0).path("series").path(0);
+            JsonNode columns = series.path("columns");
+            JsonNode values = series.path("values");
+            Map<Integer, String> columnMap = new LinkedHashMap<Integer, String>();
+            Map<String, List<SteadyChecksquareValuePointBO>> result =
+                    new LinkedHashMap<String, List<SteadyChecksquareValuePointBO>>();
+            if (!columns.isArray() || !values.isArray()) {
+                return result;
+            }
+            for (int i = 1; i < columns.size(); i++) {
+                String fieldName = columns.get(i).asText();
+                columnMap.put(i, fieldName);
+                result.put(fieldName, new ArrayList<SteadyChecksquareValuePointBO>());
+            }
+            for (JsonNode row : values) {
+                if (row.size() < 2) {
+                    continue;
+                }
+                LocalDateTime time = parseInfluxTime(row.get(0).asText());
+                if (time == null) {
+                    continue;
+                }
+                LocalDateTime slot = alignToPreviousSlot(time, intervalMinutes);
+                for (Map.Entry<Integer, String> entry : columnMap.entrySet()) {
+                    JsonNode value = row.get(entry.getKey());
+                    if (value == null || value.isNull()) {
+                        continue;
+                    }
+                    SteadyChecksquareValuePointBO point = new SteadyChecksquareValuePointBO();
+                    point.setTime(slot);
+                    point.setValue(new BigDecimal(value.asText()));
+                    result.get(entry.getValue()).add(point);
+                }
+            }
+            return result;
+        } catch (IOException ex) {
+            throw fail("InfluxDB 返回结果解析失败：" + ex.getMessage());
+        } catch (NumberFormatException ex) {
+            throw fail("InfluxDB 返回指标值格式不正确：" + ex.getMessage());
+        }
+    }
+
+    private LocalDateTime alignToPreviousSlot(LocalDateTime time, int intervalMinutes) {
+        LocalDateTime minuteFloor = time.withSecond(0).withNano(0);
+        int minuteOfDay = minuteFloor.getHour() * 60 + minuteFloor.getMinute();
+        int remainder = minuteOfDay % intervalMinutes;
+        return minuteFloor.minusMinutes(remainder);
+    }
+
+    private LocalDateTime parseInfluxTime(String value) {
+        try {
+            return OffsetDateTime.parse(value).withOffsetSameInstant(ZoneOffset.UTC).toLocalDateTime();
+        } catch (RuntimeException ex) {
+            return null;
+        }
+    }
+
+    private String executeQuery(String query) {
+        HttpURLConnection connection = null;
+        try {
+            URL url = new URL(buildQueryUrl(query));
+            connection = (HttpURLConnection) url.openConnection();
+            connection.setRequestMethod("GET");
+            connection.setConnectTimeout(properties.getConnectTimeoutMs());
+            connection.setReadTimeout(properties.getReadTimeoutMs());
+            int status = connection.getResponseCode();
+            InputStream stream = status >= 200 && status < 300 ? connection.getInputStream() : connection.getErrorStream();
+            String body = readBody(stream);
+            if (status < 200 || status >= 300) {
+                throw fail("InfluxDB 查询失败：" + body);
+            }
+            return body;
+        } catch (IOException ex) {
+            throw fail("InfluxDB 查询异常：" + ex.getMessage());
+        } finally {
+            if (connection != null) {
+                connection.disconnect();
+            }
+        }
+    }
+
+    private String buildQueryUrl(String query) throws IOException {
+        StringBuilder url = new StringBuilder(trimRightSlash(properties.getUrl())).append("/query?");
+        url.append("db=").append(encode(properties.getDatabase()));
+        if (properties.getUsername() != null && !properties.getUsername().trim().isEmpty()) {
+            url.append("&u=").append(encode(properties.getUsername().trim()));
+        }
+        if (properties.getPassword() != null && !properties.getPassword().trim().isEmpty()) {
+            url.append("&p=").append(encode(properties.getPassword()));
+        }
+        url.append("&q=").append(encode(query));
+        return url.toString();
+    }
+
+    private void validateConfig() {
+        if (properties.getUrl() == null || properties.getUrl().trim().isEmpty()) {
+            throw fail("InfluxDB 地址未配置");
+        }
+        if (properties.getDatabase() == null || properties.getDatabase().trim().isEmpty()) {
+            throw fail("InfluxDB database 未配置");
+        }
+    }
+
+    private String readBody(InputStream stream) throws IOException {
+        if (stream == null) {
+            return "";
+        }
+        BufferedReader reader = new BufferedReader(new InputStreamReader(stream, StandardCharsets.UTF_8));
+        StringBuilder body = new StringBuilder();
+        String line;
+        while ((line = reader.readLine()) != null) {
+            body.append(line);
+        }
+        return body.toString();
+    }
+
+    private String escapeTagValue(String value) {
+        return value == null ? "" : value.replace("\\", "\\\\").replace("'", "\\'");
+    }
+
+    private String resolveValueType(String statType) {
+        if (statType == null || statType.trim().isEmpty()) {
+            return "AVG";
+        }
+        return statType.trim().toUpperCase();
+    }
+
+    private boolean hasValueTypeTag(String measurement) {
+        return !"data_flicker".equals(measurement) && !"data_fluc".equals(measurement) && !"data_plt".equals(measurement);
+    }
+
+    private String trimRightSlash(String value) {
+        String text = value.trim();
+        while (text.endsWith("/")) {
+            text = text.substring(0, text.length() - 1);
+        }
+        return text;
+    }
+
+    private String encode(String value) throws IOException {
+        return URLEncoder.encode(value, StandardCharsets.UTF_8.name());
+    }
+
+    private BusinessException fail(String message) {
+        return new BusinessException(CommonResponseEnum.FAIL, message);
+    }
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareValueOrderRuleComponent.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareValueOrderRuleComponent.java
@@ -0,0 +1,145 @@
+package com.njcn.gather.steady.checksquare.component;
+
+import com.njcn.gather.steady.checksquare.pojo.bo.SteadyChecksquareValuePointBO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareValueOrderDetailVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareValueOrderRuleVO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendIndicatorDefinitionBO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendSeriesFieldBO;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 数据校验指标值大小关系规则。
+ */
+@Component
+@RequiredArgsConstructor
+public class SteadyChecksquareValueOrderRuleComponent {
+
+    private static final DateTimeFormatter OUTPUT_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+    private static final List<String> REQUIRED_STATS = Collections.unmodifiableList(Arrays.asList("MAX", "CP95", "AVG", "MIN"));
+    private static final int ABNORMAL_THRESHOLD = 1;
+
+    private final SteadyChecksquareInfluxQueryComponent influxQueryComponent;
+
+    public SteadyChecksquareValueOrderRuleVO check(String lineId, SteadyTrendIndicatorDefinitionBO indicator,
+                                                   Integer harmonicOrder, LocalDateTime startTime,
+                                                   LocalDateTime endTime, int intervalMinutes) {
+        SteadyChecksquareValueOrderRuleVO result = new SteadyChecksquareValueOrderRuleVO();
+        if (!supportValueOrderRule(indicator)) {
+            return result;
+        }
+        for (String phase : indicator.getPhaseCodes()) {
+            Map<String, Map<LocalDateTime, BigDecimal>> statValueMap = queryStatValueMap(lineId, indicator,
+                    harmonicOrder, phase, startTime, endTime, intervalMinutes);
+            appendAbnormalDetails(result, phase, harmonicOrder, statValueMap);
+        }
+        result.setAbnormalPointCount(result.getAbnormalDetails().size());
+        result.setAbnormal(result.getAbnormalPointCount() > ABNORMAL_THRESHOLD);
+        return result;
+    }
+
+    private boolean supportValueOrderRule(SteadyTrendIndicatorDefinitionBO indicator) {
+        return indicator != null && indicator.getSupportStats() != null && indicator.getSupportStats().containsAll(REQUIRED_STATS);
+    }
+
+    private Map<String, Map<LocalDateTime, BigDecimal>> queryStatValueMap(String lineId,
+                                                                          SteadyTrendIndicatorDefinitionBO indicator,
+                                                                          Integer harmonicOrder, String phase,
+                                                                          LocalDateTime startTime, LocalDateTime endTime,
+                                                                          int intervalMinutes) {
+        Map<String, Map<LocalDateTime, BigDecimal>> result = new LinkedHashMap<String, Map<LocalDateTime, BigDecimal>>();
+        for (String statType : REQUIRED_STATS) {
+            SteadyTrendResolvedFieldBO field = buildResolvedField(lineId, indicator, harmonicOrder, phase, statType);
+            result.put(statType, toValueMap(influxQueryComponent.queryValuePoints(field, startTime, endTime, intervalMinutes)));
+        }
+        return result;
+    }
+
+    private void appendAbnormalDetails(SteadyChecksquareValueOrderRuleVO result, String phase, Integer harmonicOrder,
+                                        Map<String, Map<LocalDateTime, BigDecimal>> statValueMap) {
+        Map<LocalDateTime, BigDecimal> maxValues = statValueMap.get("MAX");
+        Map<LocalDateTime, BigDecimal> cp95Values = statValueMap.get("CP95");
+        Map<LocalDateTime, BigDecimal> avgValues = statValueMap.get("AVG");
+        Map<LocalDateTime, BigDecimal> minValues = statValueMap.get("MIN");
+        if (maxValues == null || cp95Values == null || avgValues == null || minValues == null) {
+            return;
+        }
+        for (Map.Entry<LocalDateTime, BigDecimal> entry : maxValues.entrySet()) {
+            LocalDateTime time = entry.getKey();
+            BigDecimal maxValue = entry.getValue();
+            BigDecimal cp95Value = cp95Values.get(time);
+            BigDecimal avgValue = avgValues.get(time);
+            BigDecimal minValue = minValues.get(time);
+            // 缺少任一统计值时由缺数校验负责，不重复计入大小关系异常。
+            if (maxValue == null || cp95Value == null || avgValue == null || minValue == null) {
+                continue;
+            }
+            if (maxValue.compareTo(cp95Value) >= 0 && cp95Value.compareTo(avgValue) >= 0 && avgValue.compareTo(minValue) >= 0) {
+                continue;
+            }
+            result.getAbnormalDetails().add(buildDetail(time, phase, harmonicOrder, maxValue, minValue, avgValue, cp95Value));
+        }
+    }
+
+    private SteadyChecksquareValueOrderDetailVO buildDetail(LocalDateTime time, String phase, Integer harmonicOrder,
+                                                            BigDecimal maxValue, BigDecimal minValue,
+                                                            BigDecimal avgValue, BigDecimal cp95Value) {
+        SteadyChecksquareValueOrderDetailVO detail = new SteadyChecksquareValueOrderDetailVO();
+        detail.setTime(OUTPUT_TIME_FORMATTER.format(time));
+        detail.setPhase(phase);
+        detail.setHarmonicOrder(harmonicOrder);
+        detail.setMaxValue(maxValue);
+        detail.setMinValue(minValue);
+        detail.setAvgValue(avgValue);
+        detail.setCp95Value(cp95Value);
+        return detail;
+    }
+
+    private Map<LocalDateTime, BigDecimal> toValueMap(List<SteadyChecksquareValuePointBO> points) {
+        Map<LocalDateTime, BigDecimal> result = new LinkedHashMap<LocalDateTime, BigDecimal>();
+        if (points == null || points.isEmpty()) {
+            return result;
+        }
+        for (SteadyChecksquareValuePointBO point : points) {
+            if (point != null && point.getTime() != null && point.getValue() != null) {
+                result.put(point.getTime(), point.getValue());
+            }
+        }
+        return result;
+    }
+
+    private SteadyTrendResolvedFieldBO buildResolvedField(String lineId, SteadyTrendIndicatorDefinitionBO indicator,
+                                                          Integer harmonicOrder, String phase, String statType) {
+        SteadyTrendResolvedFieldBO field = new SteadyTrendResolvedFieldBO();
+        field.setMeasurement(indicator.getTableName());
+        field.setField(resolveField(indicator, harmonicOrder));
+        field.setLineId(lineId);
+        field.setIndicatorCode(indicator.getIndicatorCode());
+        field.setIndicatorName(indicator.getName());
+        field.setPhase(phase);
+        field.setStatType(statType);
+        field.setUnit(indicator.getUnit());
+        return field;
+    }
+
+    private String resolveField(SteadyTrendIndicatorDefinitionBO indicator, Integer harmonicOrder) {
+        if (Boolean.TRUE.equals(indicator.getHarmonic())) {
+            return indicator.getHarmonicFieldPrefix() + "_" + harmonicOrder;
+        }
+        List<SteadyTrendSeriesFieldBO> fields = indicator.getSeriesFields();
+        if (fields == null || fields.isEmpty()) {
+            return "";
+        }
+        return fields.get(0).getField();
+    }
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/controller/SteadyChecksquareController.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/controller/SteadyChecksquareController.java
@@ -0,0 +1,94 @@
+package com.njcn.gather.steady.checksquare.controller;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.njcn.common.pojo.annotation.OperateInfo;
+import com.njcn.common.pojo.constant.OperateType;
+import com.njcn.common.pojo.enums.common.LogEnum;
+import com.njcn.common.pojo.enums.response.CommonResponseEnum;
+import com.njcn.common.pojo.response.HttpResult;
+import com.njcn.common.utils.LogUtil;
+import com.njcn.gather.steady.checksquare.pojo.param.SteadyChecksquareHistoryQueryParam;
+import com.njcn.gather.steady.checksquare.pojo.param.SteadyChecksquareQueryParam;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareItemDetailVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareQueryVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareTaskVO;
+import com.njcn.gather.steady.checksquare.service.SteadyChecksquareService;
+import com.njcn.web.controller.BaseController;
+import com.njcn.web.utils.HttpResultUtil;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+/**
+ * 数据校验接口。
+ */
+@Slf4j
+@Api(tags = "数据校验")
+@RestController
+@RequestMapping("/steady/checksquare")
+@RequiredArgsConstructor
+public class SteadyChecksquareController extends BaseController {
+
+    private final SteadyChecksquareService checksquareService;
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("查询数据校验历史记录")
+    @PostMapping("/query")
+    public HttpResult<Page<SteadyChecksquareTaskVO>> query(@RequestBody @Validated SteadyChecksquareHistoryQueryParam param) {
+        String methodDescribe = getMethodDescribe("query");
+        LogUtil.njcnDebug(log, "{}，开始查询数据校验历史记录，param={}", methodDescribe, param);
+        Page<SteadyChecksquareTaskVO> result = checksquareService.query(param);
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON, operateType = OperateType.ADD)
+    @ApiOperation("新增数据校验记录")
+    @PostMapping("/create")
+    public HttpResult<SteadyChecksquareTaskVO> create(@RequestBody @Validated SteadyChecksquareQueryParam param) {
+        String methodDescribe = getMethodDescribe("create");
+        LogUtil.njcnDebug(log, "{}，开始新增数据校验记录，param={}", methodDescribe, param);
+        SteadyChecksquareTaskVO result = checksquareService.create(param);
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON, operateType = OperateType.DELETE)
+    @ApiOperation("删除数据校验任务")
+    @PostMapping("/delete")
+    public HttpResult<Boolean> delete(@RequestBody List<String> taskIds) {
+        String methodDescribe = getMethodDescribe("delete");
+        LogUtil.njcnDebug(log, "{}，开始删除数据校验任务，taskIds={}", methodDescribe, taskIds);
+        boolean result = checksquareService.delete(taskIds);
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, result, methodDescribe);
+    }
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("查询数据校验任务详情")
+    @GetMapping("/detail")
+    public HttpResult<SteadyChecksquareQueryVO> detail(@RequestParam("taskId") String taskId) {
+        String methodDescribe = getMethodDescribe("detail");
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS, checksquareService.detail(taskId), methodDescribe);
+    }
+
+    @OperateInfo(info = LogEnum.BUSINESS_COMMON)
+    @ApiOperation("查询数据校验检测项明细")
+    @GetMapping("/item-detail")
+    public HttpResult<SteadyChecksquareItemDetailVO> itemDetail(@RequestParam("itemId") String itemId,
+                                                               @RequestParam("detailType") String detailType,
+                                                               @RequestParam(value = "statType", required = false) String statType,
+                                                               @RequestParam(value = "pageNum", required = false) Integer pageNum,
+                                                               @RequestParam(value = "pageSize", required = false) Integer pageSize) {
+        String methodDescribe = getMethodDescribe("itemDetail");
+        return HttpResultUtil.assembleCommonResponseResult(CommonResponseEnum.SUCCESS,
+                checksquareService.itemDetail(itemId, detailType, statType, pageNum, pageSize), methodDescribe);
+    }
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/mapper/SteadyChecksquareDetailMapper.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/mapper/SteadyChecksquareDetailMapper.java
@@ -0,0 +1,10 @@
+package com.njcn.gather.steady.checksquare.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareDetailPO;
+
+/**
+ * 数据校验明细 Mapper。
+ */
+public interface SteadyChecksquareDetailMapper extends BaseMapper<SteadyChecksquareDetailPO> {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/mapper/SteadyChecksquareItemMapper.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/mapper/SteadyChecksquareItemMapper.java
@@ -0,0 +1,10 @@
+package com.njcn.gather.steady.checksquare.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareItemPO;
+
+/**
+ * 数据校验检测项 Mapper。
+ */
+public interface SteadyChecksquareItemMapper extends BaseMapper<SteadyChecksquareItemPO> {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/mapper/SteadyChecksquareStatSummaryMapper.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/mapper/SteadyChecksquareStatSummaryMapper.java
@@ -0,0 +1,10 @@
+package com.njcn.gather.steady.checksquare.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareStatSummaryPO;
+
+/**
+ * 数据校验统计摘要 Mapper。
+ */
+public interface SteadyChecksquareStatSummaryMapper extends BaseMapper<SteadyChecksquareStatSummaryPO> {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/mapper/SteadyChecksquareTaskMapper.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/mapper/SteadyChecksquareTaskMapper.java
@@ -0,0 +1,10 @@
+package com.njcn.gather.steady.checksquare.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareTaskPO;
+
+/**
+ * 数据校验任务 Mapper。
+ */
+public interface SteadyChecksquareTaskMapper extends BaseMapper<SteadyChecksquareTaskPO> {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/bo/SteadyChecksquareValuePointBO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/bo/SteadyChecksquareValuePointBO.java
@@ -0,0 +1,22 @@
+package com.njcn.gather.steady.checksquare.pojo.bo;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 数据校验指标值时间点。
+ */
+@Data
+public class SteadyChecksquareValuePointBO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    /** 对齐后的统计时间。 */
+    private LocalDateTime time;
+
+    /** 指标值。 */
+    private BigDecimal value;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/constant/SteadyChecksquareConst.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/constant/SteadyChecksquareConst.java
@@ -0,0 +1,20 @@
+package com.njcn.gather.steady.checksquare.pojo.constant;
+
+/**
+ * 数据校验常量。
+ */
+public final class SteadyChecksquareConst {
+
+    public static final int STATE_DELETED = 0;
+    public static final int STATE_ENABLED = 1;
+
+    public static final String TASK_STATUS_RUNNING = "RUNNING";
+    public static final String TASK_STATUS_SUCCESS = "SUCCESS";
+    public static final String TASK_STATUS_FAIL = "FAIL";
+    public static final String DETAIL_TYPE_SEGMENT = "SEGMENT";
+    public static final String DETAIL_TYPE_VALUE_ORDER = "VALUE_ORDER";
+    public static final String DETAIL_TYPE_HARMONIC_PARITY = "HARMONIC_PARITY";
+
+    private SteadyChecksquareConst() {
+    }
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/param/SteadyChecksquareHistoryQueryParam.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/param/SteadyChecksquareHistoryQueryParam.java
@@ -0,0 +1,31 @@
+package com.njcn.gather.steady.checksquare.pojo.param;
+
+import com.njcn.web.pojo.param.BaseParam;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+/**
+ * 数据校验历史查询参数。
+ */
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ApiModel("数据校验历史查询参数")
+public class SteadyChecksquareHistoryQueryParam extends BaseParam {
+
+    @ApiModelProperty("监测点 ID")
+    private String lineId;
+
+    @ApiModelProperty("指标编码")
+    private String indicatorCode;
+
+    @ApiModelProperty("检测开始时间，格式 yyyy-MM-dd HH:mm:ss")
+    private String timeStart;
+
+    @ApiModelProperty("检测结束时间，格式 yyyy-MM-dd HH:mm:ss")
+    private String timeEnd;
+
+    @ApiModelProperty("是否存在异常")
+    private Boolean hasAbnormal;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/param/SteadyChecksquareQueryParam.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/param/SteadyChecksquareQueryParam.java
@@ -0,0 +1,30 @@
+package com.njcn.gather.steady.checksquare.pojo.param;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.List;
+
+/**
+ * 数据校验新增检测参数。
+ */
+@Data
+@ApiModel("数据校验新增检测参数")
+public class SteadyChecksquareQueryParam implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("监测点 ID")
+    private String lineId;
+
+    @ApiModelProperty("指标编码")
+    private List<String> indicatorCodes;
+
+    @ApiModelProperty("开始时间，格式 yyyy-MM-dd HH:mm:ss")
+    private String timeStart;
+
+    @ApiModelProperty("结束时间，格式 yyyy-MM-dd HH:mm:ss")
+    private String timeEnd;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/po/SteadyChecksquareDetailPO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/po/SteadyChecksquareDetailPO.java
@@ -0,0 +1,67 @@
+package com.njcn.gather.steady.checksquare.pojo.po;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 数据校验明细。
+ */
+@Data
+@TableName("steady_checksquare_detail")
+public class SteadyChecksquareDetailPO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @TableId("id")
+    private String id;
+    @TableField("item_id")
+    private String itemId;
+    @TableField("detail_type")
+    private String detailType;
+    @TableField("stat_type")
+    private String statType;
+    @TableField("start_time")
+    private LocalDateTime startTime;
+    @TableField("end_time")
+    private LocalDateTime endTime;
+    @TableField("point_time")
+    private LocalDateTime pointTime;
+    @TableField("segment_status")
+    private String segmentStatus;
+    @TableField("missing_point_count")
+    private Integer missingPointCount;
+    @TableField("duration_minutes")
+    private Integer durationMinutes;
+    @TableField("phase")
+    private String phase;
+    @TableField("harmonic_order")
+    private Integer harmonicOrder;
+    @TableField("max_value")
+    private BigDecimal maxValue;
+    @TableField("min_value")
+    private BigDecimal minValue;
+    @TableField("avg_value")
+    private BigDecimal avgValue;
+    @TableField("cp95_value")
+    private BigDecimal cp95Value;
+    @TableField("even_harmonic_order")
+    private Integer evenHarmonicOrder;
+    @TableField("even_value")
+    private BigDecimal evenValue;
+    @TableField("odd_harmonic_orders_json")
+    private String oddHarmonicOrdersJson;
+    @TableField("odd_values_json")
+    private String oddValuesJson;
+    @TableField("odd_median_value")
+    private BigDecimal oddMedianValue;
+    @TableField("threshold_multiplier")
+    private BigDecimal thresholdMultiplier;
+    @TableField("create_time")
+    private LocalDateTime createTime;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/po/SteadyChecksquareItemPO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/po/SteadyChecksquareItemPO.java
@@ -0,0 +1,61 @@
+package com.njcn.gather.steady.checksquare.pojo.po;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 数据校验检测项。
+ */
+@Data
+@TableName("steady_checksquare_item")
+public class SteadyChecksquareItemPO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @TableId("id")
+    private String id;
+    @TableField("task_id")
+    private String taskId;
+    @TableField("item_key")
+    private String itemKey;
+    @TableField("indicator_code")
+    private String indicatorCode;
+    @TableField("indicator_name")
+    private String indicatorName;
+    @TableField("harmonic_order")
+    private Integer harmonicOrder;
+    @TableField("interval_minutes")
+    private Integer intervalMinutes;
+    @TableField("has_data")
+    private Integer hasData;
+    @TableField("expected_point_count")
+    private Integer expectedPointCount;
+    @TableField("actual_point_count")
+    private Integer actualPointCount;
+    @TableField("missing_point_count")
+    private Integer missingPointCount;
+    @TableField("data_integrity")
+    private BigDecimal dataIntegrity;
+    @TableField("data_integrity_text")
+    private String dataIntegrityText;
+    @TableField("abnormal")
+    private Integer abnormal;
+    @TableField("abnormal_point_count")
+    private Integer abnormalPointCount;
+    @TableField("harmonic_parity_abnormal")
+    private Integer harmonicParityAbnormal;
+    @TableField("harmonic_parity_abnormal_point_count")
+    private Integer harmonicParityAbnormalPointCount;
+    @TableField("state")
+    private Integer state;
+    @TableField("create_time")
+    private LocalDateTime createTime;
+    @TableField("update_time")
+    private LocalDateTime updateTime;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/po/SteadyChecksquareStatSummaryPO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/po/SteadyChecksquareStatSummaryPO.java
@@ -0,0 +1,43 @@
+package com.njcn.gather.steady.checksquare.pojo.po;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 数据校验统计摘要。
+ */
+@Data
+@TableName("steady_checksquare_stat_summary")
+public class SteadyChecksquareStatSummaryPO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @TableId("id")
+    private String id;
+    @TableField("item_id")
+    private String itemId;
+    @TableField("stat_type")
+    private String statType;
+    @TableField("supported")
+    private Integer supported;
+    @TableField("has_data")
+    private Integer hasData;
+    @TableField("expected_point_count")
+    private Integer expectedPointCount;
+    @TableField("actual_point_count")
+    private Integer actualPointCount;
+    @TableField("missing_point_count")
+    private Integer missingPointCount;
+    @TableField("data_integrity")
+    private BigDecimal dataIntegrity;
+    @TableField("data_integrity_text")
+    private String dataIntegrityText;
+    @TableField("create_time")
+    private LocalDateTime createTime;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/po/SteadyChecksquareTaskPO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/po/SteadyChecksquareTaskPO.java
@@ -0,0 +1,59 @@
+package com.njcn.gather.steady.checksquare.pojo.po;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * 数据校验任务。
+ */
+@Data
+@TableName("steady_checksquare_task")
+public class SteadyChecksquareTaskPO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @TableId("id")
+    private String id;
+    @TableField("task_no")
+    private String taskNo;
+    @TableField("line_id")
+    private String lineId;
+    @TableField("line_name")
+    private String lineName;
+    @TableField("time_start")
+    private LocalDateTime timeStart;
+    @TableField("time_end")
+    private LocalDateTime timeEnd;
+    @TableField("interval_minutes")
+    private Integer intervalMinutes;
+    @TableField("indicator_codes_json")
+    private String indicatorCodesJson;
+    @TableField("indicator_codes_text")
+    private String indicatorCodesText;
+    @TableField("task_status")
+    private String taskStatus;
+    @TableField("item_count")
+    private Integer itemCount;
+    @TableField("abnormal_item_count")
+    private Integer abnormalItemCount;
+    @TableField("min_data_integrity")
+    private BigDecimal minDataIntegrity;
+    @TableField("result_message")
+    private String resultMessage;
+    @TableField("state")
+    private Integer state;
+    @TableField("create_by")
+    private String createBy;
+    @TableField("create_time")
+    private LocalDateTime createTime;
+    @TableField("update_by")
+    private String updateBy;
+    @TableField("update_time")
+    private LocalDateTime updateTime;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareHarmonicParityDetailVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareHarmonicParityDetailVO.java
@@ -0,0 +1,47 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 谐波奇偶关系异常明细。
+ */
+@Data
+@ApiModel("谐波奇偶关系异常明细")
+public class SteadyChecksquareHarmonicParityDetailVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("时间")
+    private String time;
+
+    @ApiModelProperty("相别")
+    private String phase;
+
+    @ApiModelProperty("统计类型")
+    private String statType;
+
+    @ApiModelProperty("偶次谐波次数")
+    private Integer evenHarmonicOrder;
+
+    @ApiModelProperty("偶次谐波值")
+    private BigDecimal evenValue;
+
+    @ApiModelProperty("参与比较的奇次谐波次数")
+    private List<Integer> oddHarmonicOrders = new ArrayList<Integer>();
+
+    @ApiModelProperty("参与比较的奇次谐波值")
+    private List<BigDecimal> oddValues = new ArrayList<BigDecimal>();
+
+    @ApiModelProperty("奇次谐波中位数")
+    private BigDecimal oddMedianValue;
+
+    @ApiModelProperty("异常阈值倍数")
+    private BigDecimal thresholdMultiplier;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareHarmonicParityRuleVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareHarmonicParityRuleVO.java
@@ -0,0 +1,23 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 谐波奇偶关系规则结果。
+ */
+@Data
+public class SteadyChecksquareHarmonicParityRuleVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private Boolean abnormal = false;
+
+    private Integer abnormalPointCount = 0;
+
+    private List<SteadyChecksquareHarmonicParityDetailVO> abnormalDetails =
+            new ArrayList<SteadyChecksquareHarmonicParityDetailVO>();
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareItemDetailVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareItemDetailVO.java
@@ -0,0 +1,48 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 数据校验检测项明细。
+ */
+@Data
+@ApiModel("数据校验检测项明细")
+public class SteadyChecksquareItemDetailVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("检测项 ID")
+    private String itemId;
+
+    @ApiModelProperty("明细类型")
+    private String detailType;
+
+    @ApiModelProperty("统计类型")
+    private String statType;
+
+    @ApiModelProperty("当前页码；未分页查询时为空")
+    private Integer pageNum;
+
+    @ApiModelProperty("每页条数；未分页查询时为空")
+    private Integer pageSize;
+
+    @ApiModelProperty("总记录数；未分页查询时为空")
+    private Long total;
+
+    @ApiModelProperty("缺失区间")
+    private List<SteadyChecksquareSegmentVO> segments = new ArrayList<SteadyChecksquareSegmentVO>();
+
+    @ApiModelProperty("大小关系异常明细")
+    private List<SteadyChecksquareValueOrderDetailVO> valueOrderDetails =
+            new ArrayList<SteadyChecksquareValueOrderDetailVO>();
+
+    @ApiModelProperty("谐波奇偶关系异常明细")
+    private List<SteadyChecksquareHarmonicParityDetailVO> harmonicParityDetails =
+            new ArrayList<SteadyChecksquareHarmonicParityDetailVO>();
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareItemVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareItemVO.java
@@ -0,0 +1,81 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 数据校验总览项。
+ */
+@Data
+@ApiModel("数据校验总览项")
+public class SteadyChecksquareItemVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("检测项 ID")
+    private String itemId;
+
+    @ApiModelProperty("校验项唯一键")
+    private String itemKey;
+
+    @ApiModelProperty("指标编码")
+    private String indicatorCode;
+
+    @ApiModelProperty("指标名称")
+    private String indicatorName;
+
+    @ApiModelProperty("谐波次数")
+    private Integer harmonicOrder;
+
+    @ApiModelProperty("当前校验项统计间隔，单位分钟")
+    private Integer intervalMinutes;
+
+    @ApiModelProperty("时间范围内是否存在任意数据")
+    private Boolean hasData;
+
+    @ApiModelProperty("期望点数")
+    private Integer expectedPointCount;
+
+    @ApiModelProperty("实际点数")
+    private Integer actualPointCount;
+
+    @ApiModelProperty("缺失点数")
+    private Integer missingPointCount;
+
+    @ApiModelProperty("数据完整性")
+    private BigDecimal dataIntegrity;
+
+    @ApiModelProperty("数据完整性文本")
+    private String dataIntegrityText;
+
+    @ApiModelProperty("指标值大小关系是否异常")
+    private Boolean abnormal;
+
+    @ApiModelProperty("指标值大小关系异常累计值")
+    private Integer abnormalPointCount;
+
+    @ApiModelProperty("指标值大小关系异常明细")
+    private List<SteadyChecksquareValueOrderDetailVO> abnormalDetails = new ArrayList<SteadyChecksquareValueOrderDetailVO>();
+
+    @ApiModelProperty("谐波奇偶关系是否异常")
+    private Boolean harmonicParityAbnormal;
+
+    @ApiModelProperty("谐波奇偶关系异常累计值")
+    private Integer harmonicParityAbnormalPointCount;
+
+    @ApiModelProperty("谐波奇偶关系异常明细")
+    private List<SteadyChecksquareHarmonicParityDetailVO> harmonicParityAbnormalDetails =
+            new ArrayList<SteadyChecksquareHarmonicParityDetailVO>();
+
+    @ApiModelProperty("统计类型摘要")
+    private List<SteadyChecksquareStatSummaryVO> statSummaries = new ArrayList<SteadyChecksquareStatSummaryVO>();
+
+    @ApiModelProperty("统计类型明细")
+    private List<SteadyChecksquareStatDetailVO> statDetails = new ArrayList<SteadyChecksquareStatDetailVO>();
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareQueryVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareQueryVO.java
@@ -0,0 +1,43 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 数据校验查询结果。
+ */
+@Data
+@ApiModel("数据校验查询结果")
+public class SteadyChecksquareQueryVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("任务 ID")
+    private String taskId;
+
+    @ApiModelProperty("任务编号")
+    private String taskNo;
+
+    @ApiModelProperty("监测点 ID")
+    private String lineId;
+
+    @ApiModelProperty("监测点名称")
+    private String lineName;
+
+    @ApiModelProperty("开始时间")
+    private String timeStart;
+
+    @ApiModelProperty("结束时间")
+    private String timeEnd;
+
+    @ApiModelProperty("统计间隔，单位分钟")
+    private Integer intervalMinutes;
+
+    @ApiModelProperty("校验项")
+    private List<SteadyChecksquareItemVO> items = new ArrayList<SteadyChecksquareItemVO>();
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareSegmentVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareSegmentVO.java
@@ -0,0 +1,35 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 数据校验连续性区间。
+ */
+@Data
+@ApiModel("数据校验连续性区间")
+public class SteadyChecksquareSegmentVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("开始时间")
+    private String startTime;
+
+    @ApiModelProperty("结束时间")
+    private String endTime;
+
+    @ApiModelProperty("状态，NORMAL/MISSING")
+    private String status;
+
+    @ApiModelProperty("谐波次数")
+    private Integer harmonicOrder;
+
+    @ApiModelProperty("缺失点数")
+    private Integer missingPointCount;
+
+    @ApiModelProperty("持续时长，单位分钟")
+    private Integer durationMinutes;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareStatDetailVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareStatDetailVO.java
@@ -0,0 +1,28 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 数据校验统计类型明细。
+ */
+@Data
+@ApiModel("数据校验统计类型明细")
+public class SteadyChecksquareStatDetailVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("统计类型")
+    private String statType;
+
+    @ApiModelProperty("是否支持")
+    private Boolean supported;
+
+    @ApiModelProperty("连续性区间")
+    private List<SteadyChecksquareSegmentVO> segments = new ArrayList<SteadyChecksquareSegmentVO>();
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareStatSummaryVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareStatSummaryVO.java
@@ -0,0 +1,42 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+/**
+ * 数据校验统计类型摘要。
+ */
+@Data
+@ApiModel("数据校验统计类型摘要")
+public class SteadyChecksquareStatSummaryVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("统计类型")
+    private String statType;
+
+    @ApiModelProperty("是否支持")
+    private Boolean supported;
+
+    @ApiModelProperty("是否存在数据")
+    private Boolean hasData;
+
+    @ApiModelProperty("期望点数")
+    private Integer expectedPointCount;
+
+    @ApiModelProperty("实际点数")
+    private Integer actualPointCount;
+
+    @ApiModelProperty("缺失点数")
+    private Integer missingPointCount;
+
+    @ApiModelProperty("数据完整性")
+    private BigDecimal dataIntegrity;
+
+    @ApiModelProperty("数据完整性文本")
+    private String dataIntegrityText;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareTaskVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareTaskVO.java
@@ -0,0 +1,54 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+/**
+ * 数据校验历史任务。
+ */
+@Data
+@ApiModel("数据校验历史任务")
+public class SteadyChecksquareTaskVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("任务 ID")
+    private String taskId;
+
+    @ApiModelProperty("任务编号")
+    private String taskNo;
+
+    @ApiModelProperty("监测点 ID")
+    private String lineId;
+
+    @ApiModelProperty("监测点名称")
+    private String lineName;
+
+    @ApiModelProperty("开始时间")
+    private String timeStart;
+
+    @ApiModelProperty("结束时间")
+    private String timeEnd;
+
+    @ApiModelProperty("统计间隔，单位分钟")
+    private Integer intervalMinutes;
+
+    @ApiModelProperty("任务状态")
+    private String taskStatus;
+
+    @ApiModelProperty("检测项数量")
+    private Integer itemCount;
+
+    @ApiModelProperty("异常检测项数量")
+    private Integer abnormalItemCount;
+
+    @ApiModelProperty("最低数据完整性")
+    private BigDecimal minDataIntegrity;
+
+    @ApiModelProperty("创建时间")
+    private String createTime;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareValueOrderDetailVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareValueOrderDetailVO.java
@@ -0,0 +1,39 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+/**
+ * 数据校验指标值大小关系异常明细。
+ */
+@Data
+@ApiModel("数据校验指标值大小关系异常明细")
+public class SteadyChecksquareValueOrderDetailVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty("时间")
+    private String time;
+
+    @ApiModelProperty("相别")
+    private String phase;
+
+    @ApiModelProperty("谐波次数")
+    private Integer harmonicOrder;
+
+    @ApiModelProperty("最大值")
+    private BigDecimal maxValue;
+
+    @ApiModelProperty("最小值")
+    private BigDecimal minValue;
+
+    @ApiModelProperty("平均值")
+    private BigDecimal avgValue;
+
+    @ApiModelProperty("CP95 值")
+    private BigDecimal cp95Value;
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareValueOrderRuleVO.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/pojo/vo/SteadyChecksquareValueOrderRuleVO.java
@@ -0,0 +1,22 @@
+package com.njcn.gather.steady.checksquare.pojo.vo;
+
+import lombok.Data;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 数据校验指标值大小关系规则结果。
+ */
+@Data
+public class SteadyChecksquareValueOrderRuleVO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    private Boolean abnormal = false;
+
+    private Integer abnormalPointCount = 0;
+
+    private List<SteadyChecksquareValueOrderDetailVO> abnormalDetails = new ArrayList<SteadyChecksquareValueOrderDetailVO>();
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/SteadyChecksquareDetailService.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/SteadyChecksquareDetailService.java
@@ -0,0 +1,10 @@
+package com.njcn.gather.steady.checksquare.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareDetailPO;
+
+/**
+ * 数据校验明细服务。
+ */
+public interface SteadyChecksquareDetailService extends IService<SteadyChecksquareDetailPO> {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/SteadyChecksquareItemService.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/SteadyChecksquareItemService.java
@@ -0,0 +1,10 @@
+package com.njcn.gather.steady.checksquare.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareItemPO;
+
+/**
+ * 数据校验检测项服务。
+ */
+public interface SteadyChecksquareItemService extends IService<SteadyChecksquareItemPO> {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/SteadyChecksquareService.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/SteadyChecksquareService.java
@@ -0,0 +1,29 @@
+package com.njcn.gather.steady.checksquare.service;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.njcn.gather.steady.checksquare.pojo.param.SteadyChecksquareHistoryQueryParam;
+import com.njcn.gather.steady.checksquare.pojo.param.SteadyChecksquareQueryParam;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareItemDetailVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareQueryVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareTaskVO;
+
+import java.util.List;
+
+/**
+ * 数据校验服务。
+ */
+public interface SteadyChecksquareService {
+
+    Page<SteadyChecksquareTaskVO> query(SteadyChecksquareHistoryQueryParam param);
+
+    SteadyChecksquareTaskVO create(SteadyChecksquareQueryParam param);
+
+    boolean delete(List<String> taskIds);
+
+    SteadyChecksquareQueryVO detail(String taskId);
+
+    SteadyChecksquareItemDetailVO itemDetail(String itemId, String detailType, String statType);
+
+    SteadyChecksquareItemDetailVO itemDetail(String itemId, String detailType, String statType,
+                                             Integer pageNum, Integer pageSize);
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/SteadyChecksquareStatSummaryService.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/SteadyChecksquareStatSummaryService.java
@@ -0,0 +1,10 @@
+package com.njcn.gather.steady.checksquare.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareStatSummaryPO;
+
+/**
+ * 数据校验统计摘要服务。
+ */
+public interface SteadyChecksquareStatSummaryService extends IService<SteadyChecksquareStatSummaryPO> {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/SteadyChecksquareTaskService.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/SteadyChecksquareTaskService.java
@@ -0,0 +1,10 @@
+package com.njcn.gather.steady.checksquare.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareTaskPO;
+
+/**
+ * 数据校验任务服务。
+ */
+public interface SteadyChecksquareTaskService extends IService<SteadyChecksquareTaskPO> {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareDetailServiceImpl.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareDetailServiceImpl.java
@@ -0,0 +1,15 @@
+package com.njcn.gather.steady.checksquare.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.njcn.gather.steady.checksquare.mapper.SteadyChecksquareDetailMapper;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareDetailPO;
+import com.njcn.gather.steady.checksquare.service.SteadyChecksquareDetailService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 数据校验明细服务实现。
+ */
+@Service
+public class SteadyChecksquareDetailServiceImpl extends ServiceImpl<SteadyChecksquareDetailMapper, SteadyChecksquareDetailPO>
+        implements SteadyChecksquareDetailService {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareItemServiceImpl.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareItemServiceImpl.java
@@ -0,0 +1,15 @@
+package com.njcn.gather.steady.checksquare.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.njcn.gather.steady.checksquare.mapper.SteadyChecksquareItemMapper;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareItemPO;
+import com.njcn.gather.steady.checksquare.service.SteadyChecksquareItemService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 数据校验检测项服务实现。
+ */
+@Service
+public class SteadyChecksquareItemServiceImpl extends ServiceImpl<SteadyChecksquareItemMapper, SteadyChecksquareItemPO>
+        implements SteadyChecksquareItemService {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareServiceImpl.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareServiceImpl.java
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareStatSummaryServiceImpl.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareStatSummaryServiceImpl.java
@@ -0,0 +1,16 @@
+package com.njcn.gather.steady.checksquare.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.njcn.gather.steady.checksquare.mapper.SteadyChecksquareStatSummaryMapper;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareStatSummaryPO;
+import com.njcn.gather.steady.checksquare.service.SteadyChecksquareStatSummaryService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 数据校验统计摘要服务实现。
+ */
+@Service
+public class SteadyChecksquareStatSummaryServiceImpl
+        extends ServiceImpl<SteadyChecksquareStatSummaryMapper, SteadyChecksquareStatSummaryPO>
+        implements SteadyChecksquareStatSummaryService {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareTaskServiceImpl.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareTaskServiceImpl.java
@@ -0,0 +1,15 @@
+package com.njcn.gather.steady.checksquare.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.njcn.gather.steady.checksquare.mapper.SteadyChecksquareTaskMapper;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareTaskPO;
+import com.njcn.gather.steady.checksquare.service.SteadyChecksquareTaskService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 数据校验任务服务实现。
+ */
+@Service
+public class SteadyChecksquareTaskServiceImpl extends ServiceImpl<SteadyChecksquareTaskMapper, SteadyChecksquareTaskPO>
+        implements SteadyChecksquareTaskService {
+}
--- a/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/util/SteadyChecksquareIdUtil.java
+++ b/steady/check-square/src/main/java/com/njcn/gather/steady/checksquare/util/SteadyChecksquareIdUtil.java
@@ -0,0 +1,24 @@
+package com.njcn.gather.steady.checksquare.util;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.UUID;
+
+/**
+ * 数据校验编号工具。
+ */
+public final class SteadyChecksquareIdUtil {
+
+    private static final DateTimeFormatter TASK_FORMATTER = DateTimeFormatter.ofPattern("yyyyMMddHHmmssSSS");
+
+    private SteadyChecksquareIdUtil() {
+    }
+
+    public static String uuid() {
+        return UUID.randomUUID().toString().replace("-", "");
+    }
+
+    public static String taskNo() {
+        return "CS" + LocalDateTime.now().format(TASK_FORMATTER);
+    }
+}
--- a/steady/check-square/src/main/resources/sql/check-square/steady-checksquare-result-init.sql
+++ b/steady/check-square/src/main/resources/sql/check-square/steady-checksquare-result-init.sql
@@ -0,0 +1,102 @@
+CREATE TABLE IF NOT EXISTS `steady_checksquare_task` (
+    `id` VARCHAR(64) NOT NULL COMMENT '主键',
+    `task_no` VARCHAR(64) NOT NULL COMMENT '检测任务编号',
+    `line_id` VARCHAR(64) NOT NULL COMMENT '监测点ID',
+    `line_name` VARCHAR(255) NULL COMMENT '监测点名称',
+    `time_start` DATETIME NOT NULL COMMENT '检测开始时间',
+    `time_end` DATETIME NOT NULL COMMENT '检测结束时间',
+    `interval_minutes` INT NULL COMMENT '默认统计间隔，单位分钟',
+    `indicator_codes_json` JSON NULL COMMENT '请求指标编码列表',
+    `indicator_codes_text` VARCHAR(2000) NULL COMMENT '请求指标编码检索文本，格式 |code1|code2|',
+    `task_status` VARCHAR(32) NOT NULL DEFAULT 'SUCCESS' COMMENT '任务状态：RUNNING/SUCCESS/FAIL',
+    `item_count` INT NOT NULL DEFAULT 0 COMMENT '检测项数量',
+    `abnormal_item_count` INT NOT NULL DEFAULT 0 COMMENT '异常检测项数量',
+    `min_data_integrity` DECIMAL(12,6) NOT NULL DEFAULT 0.000000 COMMENT '最低数据完整性',
+    `result_message` VARCHAR(2000) NULL COMMENT '执行结果说明',
+    `state` TINYINT NOT NULL DEFAULT 1 COMMENT '状态：0-删除，1-正常',
+    `create_by` VARCHAR(64) NULL COMMENT '创建人',
+    `create_time` DATETIME NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    `update_by` VARCHAR(64) NULL COMMENT '更新人',
+    `update_time` DATETIME NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uk_steady_checksquare_task_no` (`task_no`),
+    KEY `idx_steady_checksquare_task_line_time` (`line_id`, `time_start`, `time_end`),
+    KEY `idx_steady_checksquare_task_status` (`task_status`),
+    KEY `idx_steady_checksquare_task_indicator_text` (`indicator_codes_text`(255)),
+    KEY `idx_steady_checksquare_task_create_time` (`create_time`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='稳态数据校验任务表';
+
+CREATE TABLE IF NOT EXISTS `steady_checksquare_item` (
+    `id` VARCHAR(64) NOT NULL COMMENT '主键',
+    `task_id` VARCHAR(64) NOT NULL COMMENT '检测任务ID',
+    `item_key` VARCHAR(255) NOT NULL COMMENT '检测项唯一键',
+    `indicator_code` VARCHAR(64) NOT NULL COMMENT '指标编码',
+    `indicator_name` VARCHAR(255) NULL COMMENT '指标名称',
+    `harmonic_order` INT NULL COMMENT '谐波次数；聚合项为空',
+    `interval_minutes` INT NULL COMMENT '当前检测项统计间隔，单位分钟',
+    `has_data` TINYINT NOT NULL DEFAULT 0 COMMENT '是否存在任意数据：0-否，1-是',
+    `expected_point_count` INT NOT NULL DEFAULT 0 COMMENT '期望点数',
+    `actual_point_count` INT NOT NULL DEFAULT 0 COMMENT '实际点数',
+    `missing_point_count` INT NOT NULL DEFAULT 0 COMMENT '缺失点数',
+    `data_integrity` DECIMAL(12,6) NOT NULL DEFAULT 0.000000 COMMENT '数据完整性',
+    `data_integrity_text` VARCHAR(32) NULL COMMENT '数据完整性文本',
+    `abnormal` TINYINT NOT NULL DEFAULT 0 COMMENT '指标值大小关系是否异常',
+    `abnormal_point_count` INT NOT NULL DEFAULT 0 COMMENT '大小关系异常点数',
+    `harmonic_parity_abnormal` TINYINT NOT NULL DEFAULT 0 COMMENT '谐波奇偶关系是否异常',
+    `harmonic_parity_abnormal_point_count` INT NOT NULL DEFAULT 0 COMMENT '谐波奇偶关系异常点数',
+    `state` TINYINT NOT NULL DEFAULT 1 COMMENT '状态：0-删除，1-正常',
+    `create_time` DATETIME NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    `update_time` DATETIME NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uk_steady_checksquare_item` (`task_id`, `item_key`),
+    KEY `idx_steady_checksquare_item_indicator` (`indicator_code`),
+    KEY `idx_steady_checksquare_item_abnormal` (`abnormal`, `harmonic_parity_abnormal`),
+    KEY `idx_steady_checksquare_item_data_integrity` (`data_integrity`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='稳态数据校验检测项表';
+
+CREATE TABLE IF NOT EXISTS `steady_checksquare_stat_summary` (
+    `id` VARCHAR(64) NOT NULL COMMENT '主键',
+    `item_id` VARCHAR(64) NOT NULL COMMENT '检测项ID',
+    `stat_type` VARCHAR(16) NOT NULL COMMENT '统计类型：AVG/MAX/MIN/CP95',
+    `supported` TINYINT NOT NULL DEFAULT 1 COMMENT '是否支持',
+    `has_data` TINYINT NOT NULL DEFAULT 0 COMMENT '是否存在数据',
+    `expected_point_count` INT NOT NULL DEFAULT 0 COMMENT '期望点数',
+    `actual_point_count` INT NOT NULL DEFAULT 0 COMMENT '实际点数',
+    `missing_point_count` INT NOT NULL DEFAULT 0 COMMENT '缺失点数',
+    `data_integrity` DECIMAL(12,6) NOT NULL DEFAULT 0.000000 COMMENT '数据完整性',
+    `data_integrity_text` VARCHAR(32) NULL COMMENT '数据完整性文本',
+    `create_time` DATETIME NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uk_steady_checksquare_stat` (`item_id`, `stat_type`),
+    KEY `idx_steady_checksquare_stat_type` (`stat_type`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='稳态数据校验统计摘要表';
+
+CREATE TABLE IF NOT EXISTS `steady_checksquare_detail` (
+    `id` VARCHAR(64) NOT NULL COMMENT '主键',
+    `item_id` VARCHAR(64) NOT NULL COMMENT '检测项ID',
+    `detail_type` VARCHAR(32) NOT NULL COMMENT '明细类型：SEGMENT/VALUE_ORDER/HARMONIC_PARITY',
+    `stat_type` VARCHAR(16) NULL COMMENT '统计类型',
+    `start_time` DATETIME NULL COMMENT '区间开始时间',
+    `end_time` DATETIME NULL COMMENT '区间结束时间',
+    `point_time` DATETIME NULL COMMENT '异常点时间',
+    `segment_status` VARCHAR(16) NULL COMMENT '区间状态：NORMAL/MISSING',
+    `missing_point_count` INT NULL COMMENT '缺失点数',
+    `duration_minutes` INT NULL COMMENT '持续时长，单位分钟',
+    `phase` VARCHAR(16) NULL COMMENT '相别',
+    `harmonic_order` INT NULL COMMENT '谐波次数',
+    `max_value` DECIMAL(24,8) NULL COMMENT '最大值',
+    `min_value` DECIMAL(24,8) NULL COMMENT '最小值',
+    `avg_value` DECIMAL(24,8) NULL COMMENT '平均值',
+    `cp95_value` DECIMAL(24,8) NULL COMMENT 'CP95值',
+    `even_harmonic_order` INT NULL COMMENT '偶次谐波次数',
+    `even_value` DECIMAL(24,8) NULL COMMENT '偶次谐波值',
+    `odd_harmonic_orders_json` JSON NULL COMMENT '参与比较的奇次谐波次数',
+    `odd_values_json` JSON NULL COMMENT '参与比较的奇次谐波值',
+    `odd_median_value` DECIMAL(24,8) NULL COMMENT '奇次谐波中位数',
+    `threshold_multiplier` DECIMAL(12,6) NULL COMMENT '异常阈值倍数',
+    `create_time` DATETIME NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    PRIMARY KEY (`id`),
+    KEY `idx_steady_checksquare_detail_item_type` (`item_id`, `detail_type`),
+    KEY `idx_steady_checksquare_detail_point_time` (`point_time`),
+    KEY `idx_steady_checksquare_detail_segment` (`start_time`, `end_time`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='稳态数据校验明细表';
--- a/steady/check-square/src/main/resources/sql/check-square/steady-checksquare-result-upgrade_20260611.sql
+++ b/steady/check-square/src/main/resources/sql/check-square/steady-checksquare-result-upgrade_20260611.sql
@@ -0,0 +1,14 @@
+ALTER TABLE `steady_checksquare_task`
+    CHANGE COLUMN `max_missing_rate` `min_data_integrity` DECIMAL(12,6) NOT NULL DEFAULT 0.000000 COMMENT '最低数据完整性';
+
+ALTER TABLE `steady_checksquare_item`
+    DROP INDEX `idx_steady_checksquare_item_missing_rate`,
+    CHANGE COLUMN `missing_rate` `data_integrity` DECIMAL(12,6) NOT NULL DEFAULT 0.000000 COMMENT '数据完整性',
+    CHANGE COLUMN `missing_rate_text` `data_integrity_text` VARCHAR(32) NULL COMMENT '数据完整性文本',
+    DROP COLUMN `max_continuous_missing_minutes`,
+    ADD KEY `idx_steady_checksquare_item_data_integrity` (`data_integrity`);
+
+ALTER TABLE `steady_checksquare_stat_summary`
+    CHANGE COLUMN `missing_rate` `data_integrity` DECIMAL(12,6) NOT NULL DEFAULT 0.000000 COMMENT '数据完整性',
+    CHANGE COLUMN `missing_rate_text` `data_integrity_text` VARCHAR(32) NULL COMMENT '数据完整性文本',
+    DROP COLUMN `max_continuous_missing_minutes`;
--- a/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareCalculatorTest.java
+++ b/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareCalculatorTest.java
@@ -0,0 +1,38 @@
+package com.njcn.gather.steady.checksquare.component;
+
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareSegmentVO;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+
+/**
+ * 数据校验缺失区间计算测试。
+ */
+class SteadyChecksquareCalculatorTest {
+
+    @Test
+    void shouldMergeContinuousMissingSlots() {
+        SteadyChecksquareCalculator calculator = new SteadyChecksquareCalculator();
+        List<LocalDateTime> slots = Arrays.asList(
+                LocalDateTime.of(2026, 5, 1, 0, 0),
+                LocalDateTime.of(2026, 5, 1, 0, 1),
+                LocalDateTime.of(2026, 5, 1, 0, 2),
+                LocalDateTime.of(2026, 5, 1, 0, 3),
+                LocalDateTime.of(2026, 5, 1, 0, 4)
+        );
+
+        List<SteadyChecksquareSegmentVO> segments = calculator.buildSegments(slots,
+                new HashSet<LocalDateTime>(Arrays.asList(slots.get(0), slots.get(3))), 1);
+
+        Assertions.assertEquals(4, segments.size());
+        Assertions.assertEquals("MISSING", segments.get(1).getStatus());
+        Assertions.assertEquals("2026-05-01 00:01:00", segments.get(1).getStartTime());
+        Assertions.assertEquals("2026-05-01 00:02:00", segments.get(1).getEndTime());
+        Assertions.assertEquals(Integer.valueOf(2), segments.get(1).getMissingPointCount());
+        Assertions.assertEquals(Integer.valueOf(2), segments.get(1).getDurationMinutes());
+    }
+}
--- a/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareHarmonicParityRuleComponentTest.java
+++ b/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareHarmonicParityRuleComponentTest.java
@@ -0,0 +1,147 @@
+package com.njcn.gather.steady.checksquare.component;
+
+import com.njcn.gather.steady.checksquare.pojo.bo.SteadyChecksquareValuePointBO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareHarmonicParityDetailVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareHarmonicParityRuleVO;
+import com.njcn.gather.steady.datavie.component.SteadyTrendIndicatorCatalog;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendIndicatorDefinitionBO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * 谐波奇偶关系规则测试。
+ */
+class SteadyChecksquareHarmonicParityRuleComponentTest {
+
+    @Test
+    void shouldRecordAbnormalWhenEvenHarmonicExceedsOddMedianThreshold() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent component = new SteadyChecksquareHarmonicParityRuleComponent(influxQueryComponent);
+        LocalDateTime time = LocalDateTime.of(2026, 5, 1, 0, 0);
+        when(influxQueryComponent.queryValuePointMap(any(),
+                any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenAnswer(invocation -> {
+                    Map<String, List<SteadyChecksquareValuePointBO>> values = emptyBatchResult(invocation.getArgument(0));
+                    putPoint(values, "v_3", time, "10");
+                    putPoint(values, "v_4", time, "31");
+                    putPoint(values, "v_5", time, "12");
+                    putPoint(values, "v_7", time, "14");
+                    return values;
+                });
+        SteadyTrendIndicatorDefinitionBO indicator = new SteadyTrendIndicatorCatalog().getIndicator("V_HARMONIC");
+
+        SteadyChecksquareHarmonicParityRuleVO result = component.check("line-001", indicator,
+                time, time, 1);
+
+        Assertions.assertEquals(Boolean.TRUE, result.getAbnormal());
+        Assertions.assertEquals(Integer.valueOf(1), result.getAbnormalPointCount());
+        SteadyChecksquareHarmonicParityDetailVO detail = result.getAbnormalDetails().get(0);
+        Assertions.assertEquals("2026-05-01 00:00:00", detail.getTime());
+        Assertions.assertEquals("A", detail.getPhase());
+        Assertions.assertEquals("AVG", detail.getStatType());
+        Assertions.assertEquals(Integer.valueOf(4), detail.getEvenHarmonicOrder());
+        Assertions.assertEquals(new BigDecimal("31"), detail.getEvenValue());
+        Assertions.assertEquals(Arrays.asList(3, 5, 7), detail.getOddHarmonicOrders());
+        Assertions.assertEquals(new BigDecimal("12"), detail.getOddMedianValue());
+        Assertions.assertEquals(new BigDecimal("2"), detail.getThresholdMultiplier());
+    }
+
+    @Test
+    void shouldSkipWhenOddReferenceCountLessThanTwo() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent component = new SteadyChecksquareHarmonicParityRuleComponent(influxQueryComponent);
+        LocalDateTime time = LocalDateTime.of(2026, 5, 1, 0, 0);
+        when(influxQueryComponent.queryValuePointMap(any(),
+                any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenAnswer(invocation -> {
+                    Map<String, List<SteadyChecksquareValuePointBO>> values = emptyBatchResult(invocation.getArgument(0));
+                    putPoint(values, "v_2", time, "50");
+                    putPoint(values, "v_3", time, "10");
+                    return values;
+                });
+        SteadyTrendIndicatorDefinitionBO indicator = new SteadyTrendIndicatorCatalog().getIndicator("V_HARMONIC");
+
+        SteadyChecksquareHarmonicParityRuleVO result = component.check("line-001", indicator,
+                time, time, 1);
+
+        Assertions.assertEquals(Boolean.FALSE, result.getAbnormal());
+        Assertions.assertEquals(Integer.valueOf(0), result.getAbnormalPointCount());
+        Assertions.assertTrue(result.getAbnormalDetails().isEmpty());
+    }
+
+    @Test
+    void shouldSkipEvenHarmonicWhenValueNotGreaterThanDeadband() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent component = new SteadyChecksquareHarmonicParityRuleComponent(influxQueryComponent);
+        LocalDateTime time = LocalDateTime.of(2026, 5, 1, 0, 0);
+        when(influxQueryComponent.queryValuePointMap(any(),
+                any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenAnswer(invocation -> {
+                    Map<String, List<SteadyChecksquareValuePointBO>> values = emptyBatchResult(invocation.getArgument(0));
+                    putPoint(values, "v_3", time, "0.01");
+                    putPoint(values, "v_4", time, "0.10");
+                    putPoint(values, "v_5", time, "0.02");
+                    return values;
+                });
+        SteadyTrendIndicatorDefinitionBO indicator = new SteadyTrendIndicatorCatalog().getIndicator("V_HARMONIC");
+
+        SteadyChecksquareHarmonicParityRuleVO result = component.check("line-001", indicator,
+                time, time, 1);
+
+        Assertions.assertEquals(Boolean.FALSE, result.getAbnormal());
+        Assertions.assertEquals(Integer.valueOf(0), result.getAbnormalPointCount());
+        Assertions.assertTrue(result.getAbnormalDetails().isEmpty());
+    }
+
+    @Test
+    void shouldSkipNonHarmonicIndicator() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent component = new SteadyChecksquareHarmonicParityRuleComponent(influxQueryComponent);
+        SteadyTrendIndicatorDefinitionBO indicator = new SteadyTrendIndicatorCatalog().getIndicator("V_RMS");
+
+        SteadyChecksquareHarmonicParityRuleVO result = component.check("line-001", indicator,
+                LocalDateTime.of(2026, 5, 1, 0, 0),
+                LocalDateTime.of(2026, 5, 1, 0, 1), 1);
+
+        Assertions.assertEquals(Boolean.FALSE, result.getAbnormal());
+        Assertions.assertEquals(Integer.valueOf(0), result.getAbnormalPointCount());
+        Assertions.assertTrue(result.getAbnormalDetails().isEmpty());
+    }
+
+    private SteadyChecksquareValuePointBO point(LocalDateTime time, String value) {
+        SteadyChecksquareValuePointBO point = new SteadyChecksquareValuePointBO();
+        point.setTime(time);
+        point.setValue(new BigDecimal(value));
+        return point;
+    }
+
+    private Map<String, List<SteadyChecksquareValuePointBO>> emptyBatchResult(List<SteadyTrendResolvedFieldBO> fields) {
+        Map<String, List<SteadyChecksquareValuePointBO>> result =
+                new LinkedHashMap<String, List<SteadyChecksquareValuePointBO>>();
+        for (SteadyTrendResolvedFieldBO field : fields) {
+            result.put(field.getField(), Collections.<SteadyChecksquareValuePointBO>emptyList());
+        }
+        return result;
+    }
+
+    private void putPoint(Map<String, List<SteadyChecksquareValuePointBO>> values, String field,
+                          LocalDateTime time, String value) {
+        if (values.containsKey(field)) {
+            values.put(field, Collections.singletonList(point(time, value)));
+        }
+    }
+}
--- a/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareInfluxQueryComponentTest.java
+++ b/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareInfluxQueryComponentTest.java
@@ -0,0 +1,186 @@
+package com.njcn.gather.steady.checksquare.component;
+
+import com.njcn.gather.steady.datavie.config.SteadyInfluxDbProperties;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import com.sun.net.httpserver.HttpServer;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.net.InetSocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.time.LocalDateTime;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * 数据校验 InfluxQL 构造契约测试。
+ */
+class SteadyChecksquareInfluxQueryComponentTest {
+
+    @Test
+    void shouldBuildChecksquareQueryWithoutQualityFlag() {
+        SteadyChecksquareInfluxQueryComponent component = new SteadyChecksquareInfluxQueryComponent(new SteadyInfluxDbProperties());
+        SteadyTrendResolvedFieldBO field = new SteadyTrendResolvedFieldBO();
+        field.setMeasurement("data_v");
+        field.setField("rms");
+        field.setLineId("line-001");
+        field.setPhase("A");
+        field.setStatType("AVG");
+
+        String query = component.buildChecksquareQuery(field,
+                LocalDateTime.of(2026, 5, 1, 0, 0, 0),
+                LocalDateTime.of(2026, 5, 1, 23, 59, 59));
+
+        Assertions.assertTrue(query.contains("SELECT \"rms\" AS \"value\""));
+        Assertions.assertTrue(query.contains("\"line_id\" = 'line-001'"));
+        Assertions.assertTrue(query.contains("\"phasic_type\" = 'A'"));
+        Assertions.assertTrue(query.contains("\"value_type\" = 'AVG'"));
+        Assertions.assertFalse(query.contains("quality_flag"));
+        Assertions.assertFalse(query.contains("GROUP BY time"));
+    }
+
+    @Test
+    void shouldBuildValuePointQueryWithStatTypeFilter() {
+        SteadyChecksquareInfluxQueryComponent component = new SteadyChecksquareInfluxQueryComponent(new SteadyInfluxDbProperties());
+        SteadyTrendResolvedFieldBO field = new SteadyTrendResolvedFieldBO();
+        field.setMeasurement("data_v");
+        field.setField("rms");
+        field.setLineId("line-001");
+        field.setPhase("A");
+        field.setStatType("CP95");
+
+        String query = component.buildValuePointQuery(field,
+                LocalDateTime.of(2026, 5, 1, 0, 0, 0),
+                LocalDateTime.of(2026, 5, 1, 23, 59, 59));
+
+        Assertions.assertTrue(query.contains("SELECT \"rms\" AS \"value\""));
+        Assertions.assertTrue(query.contains("\"line_id\" = 'line-001'"));
+        Assertions.assertTrue(query.contains("\"phasic_type\" = 'A'"));
+        Assertions.assertTrue(query.contains("\"value_type\" = 'CP95'"));
+        Assertions.assertTrue(query.endsWith("ORDER BY time ASC"));
+    }
+
+    @Test
+    void shouldReuseValuePointQueryWithinRequestCache() throws Exception {
+        AtomicInteger requestCount = new AtomicInteger();
+        HttpServer server = HttpServer.create(new InetSocketAddress(0), 0);
+        server.createContext("/query", exchange -> {
+            requestCount.incrementAndGet();
+            byte[] body = ("{\"results\":[{\"series\":[{\"values\":["
+                    + "[\"2026-05-01T00:00:00Z\",1.23],"
+                    + "[\"2026-05-01T00:01:00Z\",2.34]"
+                    + "]}]}]}").getBytes(StandardCharsets.UTF_8);
+            exchange.sendResponseHeaders(200, body.length);
+            exchange.getResponseBody().write(body);
+            exchange.close();
+        });
+        server.start();
+        try {
+            SteadyInfluxDbProperties properties = new SteadyInfluxDbProperties();
+            properties.setUrl("http://127.0.0.1:" + server.getAddress().getPort());
+            properties.setDatabase("steady");
+            SteadyChecksquareInfluxQueryComponent component = new SteadyChecksquareInfluxQueryComponent(properties);
+            SteadyTrendResolvedFieldBO field = new SteadyTrendResolvedFieldBO();
+            field.setMeasurement("data_v");
+            field.setField("rms");
+            field.setLineId("line-001");
+            field.setPhase("A");
+            field.setStatType("AVG");
+
+            component.enableRequestCache();
+            component.queryExistingSlots(field,
+                    LocalDateTime.of(2026, 5, 1, 0, 0, 0),
+                    LocalDateTime.of(2026, 5, 1, 0, 1, 0), 1);
+            component.queryValuePoints(field,
+                    LocalDateTime.of(2026, 5, 1, 0, 0, 0),
+                    LocalDateTime.of(2026, 5, 1, 0, 1, 0), 1);
+            component.clearRequestCache();
+
+            Assertions.assertEquals(1, requestCount.get());
+        } finally {
+            server.stop(0);
+        }
+    }
+
+    @Test
+    void shouldQueryMultipleValueFieldsOnce() throws Exception {
+        AtomicInteger requestCount = new AtomicInteger();
+        HttpServer server = HttpServer.create(new InetSocketAddress(0), 0);
+        server.createContext("/query", exchange -> {
+            requestCount.incrementAndGet();
+            byte[] body = ("{\"results\":[{\"series\":[{\"columns\":[\"time\",\"h_2\",\"h_3\"],\"values\":["
+                    + "[\"2026-05-01T00:00:00Z\",1.23,2.34],"
+                    + "[\"2026-05-01T00:01:00Z\",3.45,null]"
+                    + "]}]}]}").getBytes(StandardCharsets.UTF_8);
+            exchange.sendResponseHeaders(200, body.length);
+            exchange.getResponseBody().write(body);
+            exchange.close();
+        });
+        server.start();
+        try {
+            SteadyInfluxDbProperties properties = new SteadyInfluxDbProperties();
+            properties.setUrl("http://127.0.0.1:" + server.getAddress().getPort());
+            properties.setDatabase("steady");
+            SteadyChecksquareInfluxQueryComponent component = new SteadyChecksquareInfluxQueryComponent(properties);
+            SteadyTrendResolvedFieldBO h2 = buildField("h_2");
+            SteadyTrendResolvedFieldBO h3 = buildField("h_3");
+
+            component.enableRequestCache();
+            Map<String, java.util.List<com.njcn.gather.steady.checksquare.pojo.bo.SteadyChecksquareValuePointBO>> result =
+                    component.queryValuePointMap(Arrays.asList(h2, h3),
+                            LocalDateTime.of(2026, 5, 1, 0, 0, 0),
+                            LocalDateTime.of(2026, 5, 1, 0, 1, 0), 1);
+            component.clearRequestCache();
+
+            Assertions.assertEquals(1, requestCount.get());
+            Assertions.assertEquals(2, result.get("h_2").size());
+            Assertions.assertEquals(1, result.get("h_3").size());
+        } finally {
+            server.stop(0);
+        }
+    }
+
+    @Test
+    void shouldSplitLongValuePointQueryByDay() throws Exception {
+        AtomicInteger requestCount = new AtomicInteger();
+        HttpServer server = HttpServer.create(new InetSocketAddress(0), 0);
+        server.createContext("/query", exchange -> {
+            int index = requestCount.incrementAndGet();
+            byte[] body = ("{\"results\":[{\"series\":[{\"values\":["
+                    + "[\"2026-05-0" + index + "T00:00:00Z\"," + index + "]"
+                    + "]}]}]}").getBytes(StandardCharsets.UTF_8);
+            exchange.sendResponseHeaders(200, body.length);
+            exchange.getResponseBody().write(body);
+            exchange.close();
+        });
+        server.start();
+        try {
+            SteadyInfluxDbProperties properties = new SteadyInfluxDbProperties();
+            properties.setUrl("http://127.0.0.1:" + server.getAddress().getPort());
+            properties.setDatabase("steady");
+            SteadyChecksquareInfluxQueryComponent component = new SteadyChecksquareInfluxQueryComponent(properties);
+
+            List<com.njcn.gather.steady.checksquare.pojo.bo.SteadyChecksquareValuePointBO> result =
+                    component.queryValuePoints(buildField("h_2"),
+                            LocalDateTime.of(2026, 5, 1, 0, 0, 0),
+                            LocalDateTime.of(2026, 5, 3, 0, 0, 0), 1);
+
+            Assertions.assertEquals(3, requestCount.get());
+            Assertions.assertEquals(3, result.size());
+        } finally {
+            server.stop(0);
+        }
+    }
+
+    private SteadyTrendResolvedFieldBO buildField(String fieldName) {
+        SteadyTrendResolvedFieldBO field = new SteadyTrendResolvedFieldBO();
+        field.setMeasurement("data_harmonic");
+        field.setField(fieldName);
+        field.setLineId("line-001");
+        field.setPhase("A");
+        field.setStatType("AVG");
+        return field;
+    }
+}
--- a/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareValueOrderRuleComponentTest.java
+++ b/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/component/SteadyChecksquareValueOrderRuleComponentTest.java
@@ -0,0 +1,219 @@
+package com.njcn.gather.steady.checksquare.component;
+
+import com.njcn.gather.steady.checksquare.pojo.bo.SteadyChecksquareValuePointBO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareValueOrderRuleVO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendIndicatorDefinitionBO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendSeriesFieldBO;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.Arrays;
+import java.util.Collections;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * 数据校验指标值大小关系规则测试。
+ */
+class SteadyChecksquareValueOrderRuleComponentTest {
+
+    @Test
+    void shouldMarkIndicatorAbnormalWhenInvalidPointCountGreaterThanOne() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent component = new SteadyChecksquareValueOrderRuleComponent(influxQueryComponent);
+        LocalDateTime firstTime = LocalDateTime.of(2026, 5, 1, 0, 0);
+        LocalDateTime secondTime = LocalDateTime.of(2026, 5, 1, 0, 1);
+        when(influxQueryComponent.queryValuePoints(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenAnswer(invocation -> {
+                    String statType = invocation.getArgument(0, com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO.class).getStatType();
+                    if ("MAX".equals(statType)) {
+                        return Arrays.asList(point(firstTime, "8"), point(secondTime, "9"));
+                    }
+                    if ("CP95".equals(statType)) {
+                        return Arrays.asList(point(firstTime, "9"), point(secondTime, "10"));
+                    }
+                    if ("AVG".equals(statType)) {
+                        return Arrays.asList(point(firstTime, "7"), point(secondTime, "8"));
+                    }
+                    if ("MIN".equals(statType)) {
+                        return Arrays.asList(point(firstTime, "1"), point(secondTime, "9"));
+                    }
+                    return Collections.emptyList();
+                });
+
+        SteadyChecksquareValueOrderRuleVO result = component.check("line-001", indicator(), null,
+                LocalDateTime.of(2026, 5, 1, 0, 0), LocalDateTime.of(2026, 5, 1, 0, 2), 1);
+
+        Assertions.assertEquals(Integer.valueOf(2), result.getAbnormalPointCount());
+        Assertions.assertEquals(Boolean.TRUE, result.getAbnormal());
+        Assertions.assertEquals(2, result.getAbnormalDetails().size());
+        Assertions.assertEquals("2026-05-01 00:00:00", result.getAbnormalDetails().get(0).getTime());
+        Assertions.assertEquals("A", result.getAbnormalDetails().get(0).getPhase());
+        Assertions.assertEquals(new BigDecimal("8"), result.getAbnormalDetails().get(0).getMaxValue());
+        Assertions.assertEquals(new BigDecimal("1"), result.getAbnormalDetails().get(0).getMinValue());
+        Assertions.assertEquals(new BigDecimal("7"), result.getAbnormalDetails().get(0).getAvgValue());
+        Assertions.assertEquals(new BigDecimal("9"), result.getAbnormalDetails().get(0).getCp95Value());
+    }
+
+    @Test
+    void shouldTreatEqualAdjacentStatValuesAsNormal() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent component = new SteadyChecksquareValueOrderRuleComponent(influxQueryComponent);
+        LocalDateTime time = LocalDateTime.of(2026, 5, 1, 0, 0);
+        when(influxQueryComponent.queryValuePoints(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenAnswer(invocation -> {
+                    String statType = invocation.getArgument(0, com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO.class).getStatType();
+                    if ("MAX".equals(statType)) {
+                        return Collections.singletonList(point(time, "10"));
+                    }
+                    if ("CP95".equals(statType)) {
+                        return Collections.singletonList(point(time, "10"));
+                    }
+                    if ("AVG".equals(statType)) {
+                        return Collections.singletonList(point(time, "8"));
+                    }
+                    if ("MIN".equals(statType)) {
+                        return Collections.singletonList(point(time, "8"));
+                    }
+                    return Collections.emptyList();
+                });
+
+        SteadyChecksquareValueOrderRuleVO result = component.check("line-001", indicator(), null,
+                LocalDateTime.of(2026, 5, 1, 0, 0), LocalDateTime.of(2026, 5, 1, 0, 1), 1);
+
+        Assertions.assertEquals(Integer.valueOf(0), result.getAbnormalPointCount());
+        Assertions.assertEquals(Boolean.FALSE, result.getAbnormal());
+        Assertions.assertTrue(result.getAbnormalDetails().isEmpty());
+    }
+
+    @Test
+    void shouldNotMarkIndicatorAbnormalWhenOnlyOneInvalidPointExists() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent component = new SteadyChecksquareValueOrderRuleComponent(influxQueryComponent);
+        LocalDateTime time = LocalDateTime.of(2026, 5, 1, 0, 0);
+        when(influxQueryComponent.queryValuePoints(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenAnswer(invocation -> {
+                    String statType = invocation.getArgument(0, com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO.class).getStatType();
+                    if ("MAX".equals(statType)) {
+                        return Collections.singletonList(point(time, "8"));
+                    }
+                    if ("CP95".equals(statType)) {
+                        return Collections.singletonList(point(time, "10"));
+                    }
+                    if ("AVG".equals(statType)) {
+                        return Collections.singletonList(point(time, "8"));
+                    }
+                    if ("MIN".equals(statType)) {
+                        return Collections.singletonList(point(time, "1"));
+                    }
+                    return Collections.emptyList();
+                });
+
+        SteadyChecksquareValueOrderRuleVO result = component.check("line-001", indicator(), null,
+                LocalDateTime.of(2026, 5, 1, 0, 0), LocalDateTime.of(2026, 5, 1, 0, 1), 1);
+
+        Assertions.assertEquals(Integer.valueOf(1), result.getAbnormalPointCount());
+        Assertions.assertEquals(Boolean.FALSE, result.getAbnormal());
+        Assertions.assertEquals(1, result.getAbnormalDetails().size());
+    }
+
+    @Test
+    void shouldFillHarmonicOrderInAbnormalDetailForHarmonicIndicator() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent component = new SteadyChecksquareValueOrderRuleComponent(influxQueryComponent);
+        LocalDateTime time = LocalDateTime.of(2026, 5, 1, 0, 0);
+        when(influxQueryComponent.queryValuePoints(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenAnswer(invocation -> {
+                    String statType = invocation.getArgument(0, com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO.class).getStatType();
+                    if ("MAX".equals(statType)) {
+                        return Collections.singletonList(point(time, "8"));
+                    }
+                    if ("CP95".equals(statType)) {
+                        return Collections.singletonList(point(time, "10"));
+                    }
+                    if ("AVG".equals(statType)) {
+                        return Collections.singletonList(point(time, "8"));
+                    }
+                    if ("MIN".equals(statType)) {
+                        return Collections.singletonList(point(time, "1"));
+                    }
+                    return Collections.emptyList();
+                });
+        SteadyTrendIndicatorDefinitionBO indicator = indicator();
+        indicator.setHarmonic(true);
+        indicator.setHarmonicFieldPrefix("v");
+
+        SteadyChecksquareValueOrderRuleVO result = component.check("line-001", indicator, 5,
+                LocalDateTime.of(2026, 5, 1, 0, 0), LocalDateTime.of(2026, 5, 1, 0, 1), 1);
+
+        Assertions.assertEquals(1, result.getAbnormalDetails().size());
+        Assertions.assertEquals(Integer.valueOf(5), result.getAbnormalDetails().get(0).getHarmonicOrder());
+    }
+
+    @Test
+    void shouldSkipPointWhenAnyRequiredStatValueMissing() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent component = new SteadyChecksquareValueOrderRuleComponent(influxQueryComponent);
+        LocalDateTime time = LocalDateTime.of(2026, 5, 1, 0, 0);
+        when(influxQueryComponent.queryValuePoints(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenAnswer(invocation -> {
+                    String statType = invocation.getArgument(0, com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO.class).getStatType();
+                    if ("MAX".equals(statType)) {
+                        return Collections.singletonList(point(time, "10"));
+                    }
+                    if ("CP95".equals(statType)) {
+                        return Collections.singletonList(point(time, "11"));
+                    }
+                    if ("MIN".equals(statType)) {
+                        return Collections.singletonList(point(time, "1"));
+                    }
+                    return Collections.emptyList();
+                });
+
+        SteadyChecksquareValueOrderRuleVO result = component.check("line-001", indicator(), null,
+                LocalDateTime.of(2026, 5, 1, 0, 0), LocalDateTime.of(2026, 5, 1, 0, 1), 1);
+
+        Assertions.assertEquals(Integer.valueOf(0), result.getAbnormalPointCount());
+        Assertions.assertEquals(Boolean.FALSE, result.getAbnormal());
+        Assertions.assertTrue(result.getAbnormalDetails().isEmpty());
+    }
+
+    @Test
+    void shouldSkipIndicatorWhenNotAllFourStatsSupported() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent component = new SteadyChecksquareValueOrderRuleComponent(influxQueryComponent);
+        SteadyTrendIndicatorDefinitionBO indicator = indicator();
+        indicator.setSupportStats(Collections.singletonList("AVG"));
+
+        SteadyChecksquareValueOrderRuleVO result = component.check("line-001", indicator, null,
+                LocalDateTime.of(2026, 5, 1, 0, 0), LocalDateTime.of(2026, 5, 1, 0, 1), 1);
+
+        Assertions.assertEquals(Integer.valueOf(0), result.getAbnormalPointCount());
+        Assertions.assertEquals(Boolean.FALSE, result.getAbnormal());
+        Assertions.assertTrue(result.getAbnormalDetails().isEmpty());
+    }
+
+    private SteadyTrendIndicatorDefinitionBO indicator() {
+        SteadyTrendIndicatorDefinitionBO indicator = new SteadyTrendIndicatorDefinitionBO();
+        indicator.setIndicatorCode("V_RMS");
+        indicator.setName("相电压有效值");
+        indicator.setTableName("data_v");
+        indicator.setPhaseCodes(Collections.singletonList("A"));
+        indicator.setSeriesFields(Collections.singletonList(new SteadyTrendSeriesFieldBO("rms", "相电压有效值")));
+        indicator.setSupportStats(Arrays.asList("AVG", "MAX", "MIN", "CP95"));
+        indicator.setUnit("V");
+        return indicator;
+    }
+
+    private SteadyChecksquareValuePointBO point(LocalDateTime time, String value) {
+        SteadyChecksquareValuePointBO point = new SteadyChecksquareValuePointBO();
+        point.setTime(time);
+        point.setValue(new BigDecimal(value));
+        return point;
+    }
+}
--- a/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/controller/SteadyChecksquareControllerTest.java
+++ b/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/controller/SteadyChecksquareControllerTest.java
@@ -0,0 +1,56 @@
+package com.njcn.gather.steady.checksquare.controller;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.ParameterizedType;
+import java.util.List;
+
+/**
+ * 数据校验接口契约测试。
+ */
+class SteadyChecksquareControllerTest {
+
+    @Test
+    void shouldExposeChecksquareQueryEndpointInSeparateController() throws Exception {
+        RequestMapping requestMapping = SteadyChecksquareController.class.getAnnotation(RequestMapping.class);
+        Assertions.assertArrayEquals(new String[]{"/steady/checksquare"}, requestMapping.value());
+
+        Method queryMethod = SteadyChecksquareController.class.getDeclaredMethod("query", com.njcn.gather.steady.checksquare.pojo.param.SteadyChecksquareHistoryQueryParam.class);
+        PostMapping queryMapping = queryMethod.getAnnotation(PostMapping.class);
+        Assertions.assertArrayEquals(new String[]{"/query"}, queryMapping.value());
+
+        Method createMethod = SteadyChecksquareController.class.getDeclaredMethod("create", com.njcn.gather.steady.checksquare.pojo.param.SteadyChecksquareQueryParam.class);
+        PostMapping createMapping = createMethod.getAnnotation(PostMapping.class);
+        Assertions.assertArrayEquals(new String[]{"/create"}, createMapping.value());
+
+        Method detailMethod = SteadyChecksquareController.class.getDeclaredMethod("detail", String.class);
+        GetMapping detailMapping = detailMethod.getAnnotation(GetMapping.class);
+        Assertions.assertArrayEquals(new String[]{"/detail"}, detailMapping.value());
+
+        Method itemDetailMethod = SteadyChecksquareController.class.getDeclaredMethod("itemDetail",
+                String.class, String.class, String.class, Integer.class, Integer.class);
+        GetMapping itemDetailMapping = itemDetailMethod.getAnnotation(GetMapping.class);
+        Assertions.assertArrayEquals(new String[]{"/item-detail"}, itemDetailMapping.value());
+
+        Method deleteMethod = SteadyChecksquareController.class.getDeclaredMethod("delete", List.class);
+        PostMapping deleteMapping = deleteMethod.getAnnotation(PostMapping.class);
+        Assertions.assertArrayEquals(new String[]{"/delete"}, deleteMapping.value());
+    }
+
+    @Test
+    void shouldKeepCreateResponseAsTaskSummaryWithoutDetailItems() throws Exception {
+        Method createMethod = SteadyChecksquareController.class.getDeclaredMethod("create",
+                com.njcn.gather.steady.checksquare.pojo.param.SteadyChecksquareQueryParam.class);
+        ParameterizedType resultType = (ParameterizedType) createMethod.getGenericReturnType();
+
+        Assertions.assertEquals(com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareTaskVO.class,
+                resultType.getActualTypeArguments()[0]);
+        Assertions.assertThrows(NoSuchFieldException.class,
+                () -> com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareTaskVO.class.getDeclaredField("items"));
+    }
+}
--- a/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/pojo/param/SteadyChecksquareQueryParamTest.java
+++ b/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/pojo/param/SteadyChecksquareQueryParamTest.java
@@ -0,0 +1,32 @@
+package com.njcn.gather.steady.checksquare.pojo.param;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.lang.reflect.Field;
+
+/**
+ * 数据校验查询参数契约测试。
+ */
+class SteadyChecksquareQueryParamTest {
+
+    @Test
+    void shouldOnlyExposeChecksquareQueryFields() {
+        Assertions.assertNotNull(field("lineId"));
+        Assertions.assertNotNull(field("indicatorCodes"));
+        Assertions.assertNotNull(field("timeStart"));
+        Assertions.assertNotNull(field("timeEnd"));
+        Assertions.assertNull(field("qualityFlag"));
+        Assertions.assertNull(field("statTypes"));
+        Assertions.assertNull(field("phases"));
+        Assertions.assertNull(field("harmonicOrders"));
+    }
+
+    private Field field(String name) {
+        try {
+            return SteadyChecksquareQueryParam.class.getDeclaredField(name);
+        } catch (NoSuchFieldException ex) {
+            return null;
+        }
+    }
+}
--- a/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareServiceImplTest.java
+++ b/steady/check-square/src/test/java/com/njcn/gather/steady/checksquare/service/impl/SteadyChecksquareServiceImplTest.java
@@ -0,0 +1,923 @@
+package com.njcn.gather.steady.checksquare.service.impl;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.njcn.gather.steady.checksquare.component.SteadyChecksquareCalculator;
+import com.njcn.gather.steady.checksquare.component.SteadyChecksquareHarmonicParityRuleComponent;
+import com.njcn.gather.steady.checksquare.component.SteadyChecksquareInfluxQueryComponent;
+import com.njcn.gather.steady.checksquare.component.SteadyChecksquareValueOrderRuleComponent;
+import com.njcn.gather.steady.checksquare.pojo.param.SteadyChecksquareQueryParam;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareDetailPO;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareItemPO;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareStatSummaryPO;
+import com.njcn.gather.steady.checksquare.pojo.po.SteadyChecksquareTaskPO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareHarmonicParityDetailVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareHarmonicParityRuleVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareItemDetailVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareItemVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareQueryVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareStatSummaryVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareTaskVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareValueOrderDetailVO;
+import com.njcn.gather.steady.checksquare.pojo.vo.SteadyChecksquareValueOrderRuleVO;
+import com.njcn.gather.steady.checksquare.service.SteadyChecksquareDetailService;
+import com.njcn.gather.steady.checksquare.service.SteadyChecksquareItemService;
+import com.njcn.gather.steady.checksquare.service.SteadyChecksquareStatSummaryService;
+import com.njcn.gather.steady.checksquare.service.SteadyChecksquareTaskService;
+import com.njcn.gather.steady.datavie.component.SteadyTrendIndicatorCatalog;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendIndicatorDefinitionBO;
+import com.njcn.gather.steady.datavie.pojo.bo.SteadyTrendResolvedFieldBO;
+import com.njcn.gather.tool.adddata.component.AddDataTimeSlotCalculator;
+import com.njcn.gather.tool.addledger.pojo.vo.AddLedgerLinePathVO;
+import com.njcn.gather.tool.addledger.service.AddLedgerService;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.lang.reflect.Method;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+/**
+ * 鏁版嵁鏍￠獙鏈嶅姟娴嬭瘯銆? */
+class SteadyChecksquareServiceImplTest {
+
+    @Test
+    void shouldNotOpenTransactionAroundCreateCalculation() throws Exception {
+        Method createMethod = SteadyChecksquareServiceImpl.class.getMethod("create", SteadyChecksquareQueryParam.class);
+
+        Assertions.assertNull(createMethod.getAnnotation(Transactional.class));
+    }
+
+    @Test
+    void shouldRejectCreateWhenTimeRangeExceedsSevenDays() {
+        AddLedgerService addLedgerService = mock(AddLedgerService.class);
+        SteadyChecksquareTaskService taskService = mock(SteadyChecksquareTaskService.class);
+        LambdaQueryChainWrapper<SteadyChecksquareTaskPO> taskQuery = mock(LambdaQueryChainWrapper.class);
+        when(taskService.lambdaQuery()).thenReturn(taskQuery);
+        when(taskQuery.eq(any(), any())).thenReturn(taskQuery);
+        when(taskQuery.orderByDesc(any())).thenReturn(taskQuery);
+        when(taskQuery.list()).thenReturn(Collections.emptyList());
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                mock(SteadyChecksquareInfluxQueryComponent.class), new SteadyChecksquareCalculator(),
+                mock(SteadyChecksquareValueOrderRuleComponent.class), mock(SteadyChecksquareHarmonicParityRuleComponent.class),
+                new AddDataTimeSlotCalculator(), addLedgerService, taskService,
+                mock(SteadyChecksquareItemService.class), mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+        AddLedgerLinePathVO linePath = new AddLedgerLinePathVO();
+        linePath.setLineId("line-001");
+        linePath.setLineName("line-001");
+        linePath.setLineInterval(1);
+        when(addLedgerService.listLinePathByLineIds(eq(Collections.singletonList("line-001"))))
+                .thenReturn(Collections.singletonMap("line-001", linePath));
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setLineId("line-001");
+        param.setIndicatorCodes(Collections.singletonList("V_RMS"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-08 00:01:00");
+
+        Assertions.assertThrows(RuntimeException.class, () -> service.create(param));
+
+        verify(taskService, never()).save(any());
+    }
+
+    @Test
+    void shouldNotRejectCreateByIndicatorCountWithinSevenDays() {
+        AddLedgerService addLedgerService = mock(AddLedgerService.class);
+        SteadyChecksquareTaskService taskService = mock(SteadyChecksquareTaskService.class);
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent valueOrderRuleComponent = mock(SteadyChecksquareValueOrderRuleComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent harmonicParityRuleComponent = mock(SteadyChecksquareHarmonicParityRuleComponent.class);
+        SteadyChecksquareItemService itemService = mock(SteadyChecksquareItemService.class);
+        SteadyChecksquareStatSummaryService statSummaryService = mock(SteadyChecksquareStatSummaryService.class);
+        SteadyChecksquareDetailService detailService = mock(SteadyChecksquareDetailService.class);
+        LambdaQueryChainWrapper<SteadyChecksquareTaskPO> taskQuery = mock(LambdaQueryChainWrapper.class);
+        when(taskService.lambdaQuery()).thenReturn(taskQuery);
+        when(taskQuery.eq(any(), any())).thenReturn(taskQuery);
+        when(taskQuery.orderByDesc(any())).thenReturn(taskQuery);
+        when(taskQuery.list()).thenReturn(Collections.emptyList());
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                influxQueryComponent, new SteadyChecksquareCalculator(),
+                valueOrderRuleComponent, harmonicParityRuleComponent,
+                new AddDataTimeSlotCalculator(), addLedgerService, taskService,
+                itemService, statSummaryService, detailService, new ObjectMapper());
+        AddLedgerLinePathVO linePath = new AddLedgerLinePathVO();
+        linePath.setLineId("line-001");
+        linePath.setLineName("line-001");
+        linePath.setLineInterval(1);
+        when(addLedgerService.listLinePathByLineIds(eq(Collections.singletonList("line-001"))))
+                .thenReturn(Collections.singletonMap("line-001", linePath));
+        when(influxQueryComponent.queryExistingSlots(any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(new HashSet<LocalDateTime>());
+        when(valueOrderRuleComponent.check(any(), any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyRuleResult());
+        when(harmonicParityRuleComponent.check(any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyHarmonicParityRuleResult());
+        ArgumentCaptor<SteadyChecksquareTaskPO> taskCaptor = ArgumentCaptor.forClass(SteadyChecksquareTaskPO.class);
+        when(taskService.save(taskCaptor.capture())).thenReturn(true);
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setLineId("line-001");
+        param.setIndicatorCodes(Arrays.asList("V_RMS", "V_LINE_RMS", "FREQ", "I_RMS", "I_THD"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-03 23:59:00");
+
+        SteadyChecksquareTaskVO result = service.create(param);
+
+        Assertions.assertEquals(taskCaptor.getValue().getId(), result.getTaskId());
+        Assertions.assertEquals(Integer.valueOf(5), result.getItemCount());
+        verify(itemService).saveBatch(any());
+    }
+
+    @Test
+    void shouldReturnExistingTaskSummaryWhenCreateMatchesLineAndTime() {
+        SteadyChecksquareTaskService taskService = mock(SteadyChecksquareTaskService.class);
+        LambdaQueryChainWrapper<SteadyChecksquareTaskPO> taskQuery = mock(LambdaQueryChainWrapper.class);
+        SteadyChecksquareTaskPO task = new SteadyChecksquareTaskPO();
+        task.setId("task-001");
+        task.setTaskNo("CS202605010001");
+        task.setLineId("line-001");
+        task.setLineName("line-001");
+        task.setTimeStart(LocalDateTime.of(2026, 5, 1, 0, 0));
+        task.setTimeEnd(LocalDateTime.of(2026, 5, 1, 0, 1));
+        task.setIntervalMinutes(1);
+        task.setIndicatorCodesJson("[\"V_RMS\"]");
+        task.setTaskStatus("SUCCESS");
+        task.setItemCount(1);
+        task.setAbnormalItemCount(0);
+        task.setMinDataIntegrity(BigDecimal.ONE.setScale(6));
+        task.setCreateTime(LocalDateTime.of(2026, 5, 1, 1, 0));
+        task.setState(1);
+        when(taskService.lambdaQuery()).thenReturn(taskQuery);
+        when(taskQuery.eq(any(), any())).thenReturn(taskQuery);
+        when(taskQuery.orderByDesc(any())).thenReturn(taskQuery);
+        when(taskQuery.list()).thenReturn(Collections.singletonList(task));
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                mock(SteadyChecksquareInfluxQueryComponent.class), new SteadyChecksquareCalculator(),
+                mock(SteadyChecksquareValueOrderRuleComponent.class), mock(SteadyChecksquareHarmonicParityRuleComponent.class),
+                new AddDataTimeSlotCalculator(), mock(AddLedgerService.class), taskService,
+                mock(SteadyChecksquareItemService.class), mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setLineId("line-001");
+        param.setIndicatorCodes(Collections.singletonList("I_RMS"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 00:01:00");
+
+        SteadyChecksquareTaskVO result = service.create(param);
+
+        Assertions.assertEquals("task-001", result.getTaskId());
+        Assertions.assertEquals("CS202605010001", result.getTaskNo());
+        Assertions.assertEquals("SUCCESS", result.getTaskStatus());
+        verify(taskService, never()).save(any());
+    }
+
+    @Test
+    void shouldCreateTaskSynchronouslyAndReturnTaskSummary() {
+        AddLedgerService addLedgerService = mock(AddLedgerService.class);
+        SteadyChecksquareTaskService taskService = mock(SteadyChecksquareTaskService.class);
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent valueOrderRuleComponent = mock(SteadyChecksquareValueOrderRuleComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent harmonicParityRuleComponent = mock(SteadyChecksquareHarmonicParityRuleComponent.class);
+        SteadyChecksquareItemService itemService = mock(SteadyChecksquareItemService.class);
+        SteadyChecksquareStatSummaryService statSummaryService = mock(SteadyChecksquareStatSummaryService.class);
+        SteadyChecksquareDetailService detailService = mock(SteadyChecksquareDetailService.class);
+        LambdaQueryChainWrapper<SteadyChecksquareTaskPO> taskQuery = mock(LambdaQueryChainWrapper.class);
+        when(taskService.lambdaQuery()).thenReturn(taskQuery);
+        when(taskQuery.eq(any(), any())).thenReturn(taskQuery);
+        when(taskQuery.orderByDesc(any())).thenReturn(taskQuery);
+        when(taskQuery.list()).thenReturn(Collections.emptyList());
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                influxQueryComponent, new SteadyChecksquareCalculator(),
+                valueOrderRuleComponent, harmonicParityRuleComponent,
+                new AddDataTimeSlotCalculator(), addLedgerService, taskService,
+                itemService, statSummaryService, detailService, new ObjectMapper());
+        AddLedgerLinePathVO linePath = new AddLedgerLinePathVO();
+        linePath.setLineId("line-001");
+        linePath.setLineName("line-001");
+        linePath.setLineInterval(1);
+        when(addLedgerService.listLinePathByLineIds(eq(Collections.singletonList("line-001"))))
+                .thenReturn(Collections.singletonMap("line-001", linePath));
+        when(influxQueryComponent.queryExistingSlots(any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(new HashSet<LocalDateTime>());
+        when(valueOrderRuleComponent.check(any(), any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyRuleResult());
+        when(harmonicParityRuleComponent.check(any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyHarmonicParityRuleResult());
+        ArgumentCaptor<SteadyChecksquareTaskPO> taskCaptor = ArgumentCaptor.forClass(SteadyChecksquareTaskPO.class);
+        when(taskService.save(taskCaptor.capture())).thenReturn(true);
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setLineId("line-001");
+        param.setIndicatorCodes(Collections.singletonList("V_RMS"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 00:01:00");
+
+        SteadyChecksquareTaskVO result = service.create(param);
+
+        Assertions.assertEquals(taskCaptor.getValue().getId(), result.getTaskId());
+        Assertions.assertEquals("SUCCESS", result.getTaskStatus());
+        Assertions.assertEquals(Integer.valueOf(1), result.getItemCount());
+        verify(itemService).saveBatch(any());
+        verify(statSummaryService).saveBatch(any());
+    }
+
+    @Test
+    void shouldUseFixedFlickerIntervalsPerIndicator() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent valueOrderRuleComponent = mock(SteadyChecksquareValueOrderRuleComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent harmonicParityRuleComponent = mock(SteadyChecksquareHarmonicParityRuleComponent.class);
+        AddLedgerService addLedgerService = mock(AddLedgerService.class);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                influxQueryComponent, new SteadyChecksquareCalculator(), valueOrderRuleComponent, harmonicParityRuleComponent,
+                new AddDataTimeSlotCalculator(), addLedgerService, mock(SteadyChecksquareTaskService.class),
+                mock(SteadyChecksquareItemService.class), mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+        when(valueOrderRuleComponent.check(any(), any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyRuleResult());
+        when(harmonicParityRuleComponent.check(any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyHarmonicParityRuleResult());
+        AddLedgerLinePathVO linePath = new AddLedgerLinePathVO();
+        linePath.setLineId("line-001");
+        linePath.setLineName("杩涚嚎涓€");
+        linePath.setLineInterval(1);
+        when(addLedgerService.listLinePathByLineIds(eq(Collections.singletonList("line-001"))))
+                .thenReturn(Collections.singletonMap("line-001", linePath));
+        when(influxQueryComponent.queryExistingSlots(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(10)))
+                .thenReturn(new HashSet<LocalDateTime>(Arrays.asList(
+                        LocalDateTime.of(2026, 5, 1, 0, 0),
+                        LocalDateTime.of(2026, 5, 1, 0, 10))));
+        when(influxQueryComponent.queryExistingSlots(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(120)))
+                .thenReturn(new HashSet<LocalDateTime>(Collections.singletonList(
+                        LocalDateTime.of(2026, 5, 1, 0, 0))));
+
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setLineId("line-001");
+        param.setIndicatorCodes(Arrays.asList("FLUC", "PST", "PLT"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 02:00:00");
+
+        SteadyChecksquareQueryVO result = calculate(service, param);
+
+        Assertions.assertEquals(Integer.valueOf(1), result.getIntervalMinutes());
+        Assertions.assertEquals(3, result.getItems().size());
+        assertItemInterval(result.getItems().get(0), "FLUC", 10, 13);
+        assertItemInterval(result.getItems().get(1), "PST", 10, 13);
+        assertItemInterval(result.getItems().get(2), "PLT", 120, 2);
+    }
+
+    @Test
+    void shouldAggregateAllHarmonicOrdersIntoIndicatorItem() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent valueOrderRuleComponent = mock(SteadyChecksquareValueOrderRuleComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent harmonicParityRuleComponent = mock(SteadyChecksquareHarmonicParityRuleComponent.class);
+        AddLedgerService addLedgerService = mock(AddLedgerService.class);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                influxQueryComponent, new SteadyChecksquareCalculator(), valueOrderRuleComponent, harmonicParityRuleComponent,
+                new AddDataTimeSlotCalculator(), addLedgerService, mock(SteadyChecksquareTaskService.class),
+                mock(SteadyChecksquareItemService.class), mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+        when(valueOrderRuleComponent.check(any(), any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyRuleResult());
+        when(harmonicParityRuleComponent.check(any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyHarmonicParityRuleResult());
+        AddLedgerLinePathVO linePath = new AddLedgerLinePathVO();
+        linePath.setLineId("line-001");
+        linePath.setLineName("杩涚嚎涓€");
+        linePath.setLineInterval(1);
+        when(addLedgerService.listLinePathByLineIds(eq(Collections.singletonList("line-001"))))
+                .thenReturn(Collections.singletonMap("line-001", linePath));
+        when(influxQueryComponent.queryExistingSlots(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenReturn(new HashSet<LocalDateTime>(Collections.singletonList(
+                        LocalDateTime.of(2026, 5, 1, 0, 0))));
+
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setLineId("line-001");
+        param.setIndicatorCodes(Collections.singletonList("V_HARMONIC"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 00:01:00");
+
+        SteadyChecksquareQueryVO result = calculate(service, param);
+
+        Assertions.assertEquals(1, result.getItems().size());
+        Assertions.assertEquals("line-001|V_HARMONIC", result.getItems().get(0).getItemKey());
+        Assertions.assertNull(result.getItems().get(0).getHarmonicOrder());
+        Assertions.assertEquals(Integer.valueOf(2), result.getItems().get(0).getStatDetails().get(0).getSegments().get(0).getHarmonicOrder());
+    }
+
+    @Test
+    void shouldAverageHarmonicOrderResultsAndMarkAbnormalWhenAnyOrderAbnormal() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent valueOrderRuleComponent = mock(SteadyChecksquareValueOrderRuleComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent harmonicParityRuleComponent = mock(SteadyChecksquareHarmonicParityRuleComponent.class);
+        AddLedgerService addLedgerService = mock(AddLedgerService.class);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                influxQueryComponent, new SteadyChecksquareCalculator(), valueOrderRuleComponent, harmonicParityRuleComponent,
+                new AddDataTimeSlotCalculator(), addLedgerService, mock(SteadyChecksquareTaskService.class),
+                mock(SteadyChecksquareItemService.class), mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+        when(valueOrderRuleComponent.check(any(), any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyRuleResult());
+        when(harmonicParityRuleComponent.check(any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyHarmonicParityRuleResult());
+        AddLedgerLinePathVO linePath = new AddLedgerLinePathVO();
+        linePath.setLineId("line-001");
+        linePath.setLineName("杩涚嚎涓€");
+        linePath.setLineInterval(1);
+        when(addLedgerService.listLinePathByLineIds(eq(Collections.singletonList("line-001"))))
+                .thenReturn(Collections.singletonMap("line-001", linePath));
+        when(influxQueryComponent.queryExistingSlots(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenReturn(new HashSet<LocalDateTime>(Collections.singletonList(
+                        LocalDateTime.of(2026, 5, 1, 0, 0))));
+        SteadyChecksquareValueOrderRuleVO normalRuleResult = new SteadyChecksquareValueOrderRuleVO();
+        SteadyChecksquareValueOrderRuleVO abnormalRuleResult = new SteadyChecksquareValueOrderRuleVO();
+        SteadyChecksquareValueOrderDetailVO abnormalDetail = new SteadyChecksquareValueOrderDetailVO();
+        abnormalDetail.setTime("2026-05-01 00:00:00");
+        abnormalDetail.setPhase("A");
+        abnormalDetail.setHarmonicOrder(2);
+        abnormalRuleResult.setAbnormal(true);
+        abnormalRuleResult.setAbnormalPointCount(4);
+        abnormalRuleResult.setAbnormalDetails(Collections.singletonList(abnormalDetail));
+        when(valueOrderRuleComponent.check(any(), any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(normalRuleResult);
+        when(valueOrderRuleComponent.check(any(), any(), eq(2), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(abnormalRuleResult);
+        when(valueOrderRuleComponent.check(any(), any(), eq(3), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(normalRuleResult);
+
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setLineId("line-001");
+        param.setIndicatorCodes(Collections.singletonList("V_HARMONIC"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 00:01:00");
+
+        SteadyChecksquareQueryVO result = calculate(service, param);
+
+        List<SteadyChecksquareItemVO> items = result.getItems();
+        Assertions.assertEquals(1, items.size());
+        Assertions.assertEquals(Boolean.TRUE, items.get(0).getAbnormal());
+        Assertions.assertEquals(Integer.valueOf(1), items.get(0).getAbnormalPointCount());
+        Assertions.assertEquals(1, items.get(0).getAbnormalDetails().size());
+        Assertions.assertEquals(Integer.valueOf(2), items.get(0).getAbnormalDetails().get(0).getHarmonicOrder());
+        Assertions.assertEquals(Integer.valueOf(8), items.get(0).getExpectedPointCount());
+        Assertions.assertEquals(Integer.valueOf(4), items.get(0).getActualPointCount());
+    }
+
+    @Test
+    void shouldAssembleValueOrderRuleResultIntoItem() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent valueOrderRuleComponent = mock(SteadyChecksquareValueOrderRuleComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent harmonicParityRuleComponent = mock(SteadyChecksquareHarmonicParityRuleComponent.class);
+        AddLedgerService addLedgerService = mock(AddLedgerService.class);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                influxQueryComponent, new SteadyChecksquareCalculator(), valueOrderRuleComponent, harmonicParityRuleComponent,
+                new AddDataTimeSlotCalculator(), addLedgerService, mock(SteadyChecksquareTaskService.class),
+                mock(SteadyChecksquareItemService.class), mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+        AddLedgerLinePathVO linePath = new AddLedgerLinePathVO();
+        linePath.setLineId("line-001");
+        linePath.setLineName("杩涚嚎涓€");
+        linePath.setLineInterval(1);
+        when(addLedgerService.listLinePathByLineIds(eq(Collections.singletonList("line-001"))))
+                .thenReturn(Collections.singletonMap("line-001", linePath));
+        when(influxQueryComponent.queryExistingSlots(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenReturn(new HashSet<LocalDateTime>(Collections.singletonList(
+                        LocalDateTime.of(2026, 5, 1, 0, 0))));
+        SteadyChecksquareValueOrderRuleVO ruleResult = new SteadyChecksquareValueOrderRuleVO();
+        SteadyChecksquareValueOrderDetailVO detail = new SteadyChecksquareValueOrderDetailVO();
+        detail.setTime("2026-05-01 00:00:00");
+        detail.setPhase("A");
+        ruleResult.setAbnormalPointCount(2);
+        ruleResult.setAbnormal(true);
+        ruleResult.setAbnormalDetails(Collections.singletonList(detail));
+        when(valueOrderRuleComponent.check(any(), any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenReturn(ruleResult);
+
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setLineId("line-001");
+        param.setIndicatorCodes(Collections.singletonList("V_RMS"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 00:01:00");
+
+        SteadyChecksquareQueryVO result = calculate(service, param);
+
+        SteadyChecksquareItemVO item = result.getItems().get(0);
+        Assertions.assertEquals(Boolean.TRUE, item.getAbnormal());
+        Assertions.assertEquals(Integer.valueOf(2), item.getAbnormalPointCount());
+        Assertions.assertEquals(1, item.getAbnormalDetails().size());
+        Assertions.assertEquals("A", item.getAbnormalDetails().get(0).getPhase());
+    }
+
+    @Test
+    void shouldPrefetchNormalIndicatorFieldsByMeasurementPhaseAndStat() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent valueOrderRuleComponent = mock(SteadyChecksquareValueOrderRuleComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent harmonicParityRuleComponent = mock(SteadyChecksquareHarmonicParityRuleComponent.class);
+        AddLedgerService addLedgerService = mock(AddLedgerService.class);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                influxQueryComponent, new SteadyChecksquareCalculator(), valueOrderRuleComponent, harmonicParityRuleComponent,
+                new AddDataTimeSlotCalculator(), addLedgerService, mock(SteadyChecksquareTaskService.class),
+                mock(SteadyChecksquareItemService.class), mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+        when(valueOrderRuleComponent.check(any(), any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyRuleResult());
+        when(harmonicParityRuleComponent.check(any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyHarmonicParityRuleResult());
+        AddLedgerLinePathVO linePath = new AddLedgerLinePathVO();
+        linePath.setLineId("line-001");
+        linePath.setLineName("杩涚嚎涓€");
+        linePath.setLineInterval(1);
+        when(addLedgerService.listLinePathByLineIds(eq(Collections.singletonList("line-001"))))
+                .thenReturn(Collections.singletonMap("line-001", linePath));
+        when(influxQueryComponent.queryExistingSlots(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenReturn(new HashSet<LocalDateTime>(Collections.singletonList(
+                        LocalDateTime.of(2026, 5, 1, 0, 0))));
+
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setLineId("line-001");
+        param.setIndicatorCodes(Arrays.asList("V_RMS", "V_LINE_RMS"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 00:01:00");
+
+        calculate(service, param);
+
+        ArgumentCaptor<List> captor = ArgumentCaptor.forClass(List.class);
+        verify(influxQueryComponent, times(12)).queryValuePointMap(captor.capture(),
+                any(LocalDateTime.class), any(LocalDateTime.class), eq(1));
+        boolean foundBatch = false;
+        for (List fields : captor.getAllValues()) {
+            if (fields.size() == 2) {
+                List<String> fieldNames = new ArrayList<String>();
+                for (Object field : fields) {
+                    fieldNames.add(((SteadyTrendResolvedFieldBO) field).getField());
+                }
+                foundBatch = fieldNames.contains("rms") && fieldNames.contains("rms_lvr");
+            }
+        }
+        Assertions.assertTrue(foundBatch);
+    }
+
+    @Test
+    void shouldAssembleHarmonicParityRuleResultIntoAggregateItem() {
+        SteadyChecksquareInfluxQueryComponent influxQueryComponent = mock(SteadyChecksquareInfluxQueryComponent.class);
+        SteadyChecksquareValueOrderRuleComponent valueOrderRuleComponent = mock(SteadyChecksquareValueOrderRuleComponent.class);
+        SteadyChecksquareHarmonicParityRuleComponent harmonicParityRuleComponent = mock(SteadyChecksquareHarmonicParityRuleComponent.class);
+        AddLedgerService addLedgerService = mock(AddLedgerService.class);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                influxQueryComponent, new SteadyChecksquareCalculator(), valueOrderRuleComponent, harmonicParityRuleComponent,
+                new AddDataTimeSlotCalculator(), addLedgerService, mock(SteadyChecksquareTaskService.class),
+                mock(SteadyChecksquareItemService.class), mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+        when(valueOrderRuleComponent.check(any(), any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), anyInt()))
+                .thenReturn(emptyRuleResult());
+        AddLedgerLinePathVO linePath = new AddLedgerLinePathVO();
+        linePath.setLineId("line-001");
+        linePath.setLineName("杩涚嚎涓€");
+        linePath.setLineInterval(1);
+        when(addLedgerService.listLinePathByLineIds(eq(Collections.singletonList("line-001"))))
+                .thenReturn(Collections.singletonMap("line-001", linePath));
+        when(influxQueryComponent.queryExistingSlots(any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenReturn(new HashSet<LocalDateTime>(Collections.singletonList(
+                        LocalDateTime.of(2026, 5, 1, 0, 0))));
+        SteadyChecksquareHarmonicParityRuleVO ruleResult = new SteadyChecksquareHarmonicParityRuleVO();
+        SteadyChecksquareHarmonicParityDetailVO detail = new SteadyChecksquareHarmonicParityDetailVO();
+        detail.setTime("2026-05-01 00:00:00");
+        detail.setPhase("A");
+        detail.setStatType("AVG");
+        detail.setEvenHarmonicOrder(4);
+        ruleResult.setAbnormal(true);
+        ruleResult.setAbnormalPointCount(1);
+        ruleResult.setAbnormalDetails(Collections.singletonList(detail));
+        when(harmonicParityRuleComponent.check(any(), any(), any(LocalDateTime.class), any(LocalDateTime.class), eq(1)))
+                .thenReturn(ruleResult);
+
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setLineId("line-001");
+        param.setIndicatorCodes(Collections.singletonList("V_HARMONIC"));
+        param.setTimeStart("2026-05-01 00:00:00");
+        param.setTimeEnd("2026-05-01 00:01:00");
+
+        SteadyChecksquareQueryVO result = calculate(service, param);
+
+        SteadyChecksquareItemVO item = result.getItems().get(0);
+        Assertions.assertNull(item.getHarmonicOrder());
+        Assertions.assertEquals(Boolean.TRUE, item.getHarmonicParityAbnormal());
+        Assertions.assertEquals(Integer.valueOf(1), item.getHarmonicParityAbnormalPointCount());
+        Assertions.assertEquals("AVG", item.getHarmonicParityAbnormalDetails().get(0).getStatType());
+    }
+
+    @Test
+    void shouldRejectUnsupportedItemDetailType() {
+        SteadyChecksquareItemService itemService = mock(SteadyChecksquareItemService.class);
+        SteadyChecksquareItemPO item = new SteadyChecksquareItemPO();
+        item.setId("item-001");
+        item.setState(1);
+        when(itemService.getById("item-001")).thenReturn(item);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                mock(SteadyChecksquareInfluxQueryComponent.class), new SteadyChecksquareCalculator(),
+                mock(SteadyChecksquareValueOrderRuleComponent.class), mock(SteadyChecksquareHarmonicParityRuleComponent.class),
+                new AddDataTimeSlotCalculator(), mock(AddLedgerService.class), mock(SteadyChecksquareTaskService.class),
+                itemService, mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+
+        Assertions.assertThrows(RuntimeException.class, () -> service.itemDetail("item-001", "UNKNOWN", null));
+    }
+
+    @Test
+    void shouldLoadDetailSummariesInSingleBatch() {
+        SteadyChecksquareTaskService taskService = mock(SteadyChecksquareTaskService.class);
+        SteadyChecksquareItemService itemService = mock(SteadyChecksquareItemService.class);
+        SteadyChecksquareStatSummaryService statSummaryService = mock(SteadyChecksquareStatSummaryService.class);
+        LambdaQueryChainWrapper<SteadyChecksquareItemPO> itemQuery = mock(LambdaQueryChainWrapper.class);
+        LambdaQueryChainWrapper<SteadyChecksquareStatSummaryPO> summaryQuery = mock(LambdaQueryChainWrapper.class);
+        SteadyChecksquareTaskPO task = new SteadyChecksquareTaskPO();
+        task.setId("task-001");
+        task.setState(1);
+        task.setLineId("line-001");
+        task.setLineName("杩涚嚎涓€");
+        task.setTimeStart(LocalDateTime.of(2026, 5, 1, 0, 0));
+        task.setTimeEnd(LocalDateTime.of(2026, 5, 1, 0, 1));
+        task.setIntervalMinutes(1);
+        SteadyChecksquareItemPO item1 = buildItemPO("item-001", "V_RMS");
+        SteadyChecksquareItemPO item2 = buildItemPO("item-002", "FREQ");
+        SteadyChecksquareStatSummaryPO summary1 = buildSummaryPO("item-001", "AVG");
+        SteadyChecksquareStatSummaryPO summary2 = buildSummaryPO("item-002", "AVG");
+        when(taskService.getById("task-001")).thenReturn(task);
+        when(itemService.lambdaQuery()).thenReturn(itemQuery);
+        when(itemQuery.eq(any(), any())).thenReturn(itemQuery);
+        when(itemQuery.list()).thenReturn(Arrays.asList(item1, item2));
+        when(statSummaryService.lambdaQuery()).thenReturn(summaryQuery);
+        when(summaryQuery.in(any(), any(List.class))).thenReturn(summaryQuery);
+        when(summaryQuery.list()).thenReturn(Arrays.asList(summary1, summary2));
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                mock(SteadyChecksquareInfluxQueryComponent.class), new SteadyChecksquareCalculator(),
+                mock(SteadyChecksquareValueOrderRuleComponent.class), mock(SteadyChecksquareHarmonicParityRuleComponent.class),
+                new AddDataTimeSlotCalculator(), mock(AddLedgerService.class), taskService,
+                itemService, statSummaryService, mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+
+        SteadyChecksquareQueryVO result = service.detail("task-001");
+
+        Assertions.assertEquals(2, result.getItems().size());
+        Assertions.assertEquals(1, result.getItems().get(0).getStatSummaries().size());
+        Assertions.assertEquals(1, result.getItems().get(1).getStatSummaries().size());
+        verify(statSummaryService, times(1)).lambdaQuery();
+    }
+
+    @Test
+    void shouldPageItemDetailWhenPageArgumentsPresent() {
+        SteadyChecksquareItemService itemService = mock(SteadyChecksquareItemService.class);
+        SteadyChecksquareDetailService detailService = mock(SteadyChecksquareDetailService.class);
+        SteadyChecksquareItemPO item = new SteadyChecksquareItemPO();
+        item.setId("item-001");
+        item.setState(1);
+        SteadyChecksquareDetailPO detail = new SteadyChecksquareDetailPO();
+        detail.setItemId("item-001");
+        detail.setDetailType("VALUE_ORDER");
+        detail.setPointTime(LocalDateTime.of(2026, 5, 1, 0, 0));
+        detail.setPhase("A");
+        Page<SteadyChecksquareDetailPO> page = new Page<SteadyChecksquareDetailPO>(2, 1);
+        page.setTotal(1);
+        page.setRecords(Collections.singletonList(detail));
+        when(itemService.getById("item-001")).thenReturn(item);
+        when(detailService.page(any(Page.class), any())).thenReturn(page);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                mock(SteadyChecksquareInfluxQueryComponent.class), new SteadyChecksquareCalculator(),
+                mock(SteadyChecksquareValueOrderRuleComponent.class), mock(SteadyChecksquareHarmonicParityRuleComponent.class),
+                new AddDataTimeSlotCalculator(), mock(AddLedgerService.class), mock(SteadyChecksquareTaskService.class),
+                itemService, mock(SteadyChecksquareStatSummaryService.class),
+                detailService, new ObjectMapper());
+
+        SteadyChecksquareItemDetailVO result = service.itemDetail("item-001", "VALUE_ORDER", null, 2, 1);
+
+        Assertions.assertEquals(Integer.valueOf(2), result.getPageNum());
+        Assertions.assertEquals(Integer.valueOf(1), result.getPageSize());
+        Assertions.assertEquals(Long.valueOf(1L), result.getTotal());
+        Assertions.assertEquals(1, result.getValueOrderDetails().size());
+        verify(detailService).page(any(Page.class), any());
+    }
+
+    @Test
+    void shouldDeleteTasksAndItemsLogically() {
+        SteadyChecksquareTaskService taskService = mock(SteadyChecksquareTaskService.class);
+        SteadyChecksquareItemService itemService = mock(SteadyChecksquareItemService.class);
+        LambdaQueryChainWrapper<SteadyChecksquareTaskPO> taskQuery = mock(LambdaQueryChainWrapper.class);
+        SteadyChecksquareTaskPO task = new SteadyChecksquareTaskPO();
+        task.setId("task-001");
+        task.setState(1);
+        when(taskService.lambdaQuery()).thenReturn(taskQuery);
+        when(taskQuery.in(any(), any(List.class))).thenReturn(taskQuery);
+        when(taskQuery.eq(any(), any())).thenReturn(taskQuery);
+        when(taskQuery.list()).thenReturn(Collections.singletonList(task));
+        when(taskService.update(any())).thenReturn(true);
+        when(itemService.update(any())).thenReturn(true);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                mock(SteadyChecksquareInfluxQueryComponent.class), new SteadyChecksquareCalculator(),
+                mock(SteadyChecksquareValueOrderRuleComponent.class), mock(SteadyChecksquareHarmonicParityRuleComponent.class),
+                new AddDataTimeSlotCalculator(), mock(AddLedgerService.class), taskService,
+                itemService, mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+
+        boolean result = service.delete(Collections.singletonList("task-001"));
+
+        Assertions.assertTrue(result);
+        verify(taskService).update(any());
+        verify(itemService).update(any());
+    }
+
+    @Test
+    void shouldSaveChecksquareResultsInBatch() {
+        SteadyChecksquareTaskService taskService = mock(SteadyChecksquareTaskService.class);
+        SteadyChecksquareItemService itemService = mock(SteadyChecksquareItemService.class);
+        SteadyChecksquareStatSummaryService statSummaryService = mock(SteadyChecksquareStatSummaryService.class);
+        SteadyChecksquareDetailService detailService = mock(SteadyChecksquareDetailService.class);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                mock(SteadyChecksquareInfluxQueryComponent.class), new SteadyChecksquareCalculator(),
+                mock(SteadyChecksquareValueOrderRuleComponent.class), mock(SteadyChecksquareHarmonicParityRuleComponent.class),
+                new AddDataTimeSlotCalculator(), mock(AddLedgerService.class), taskService,
+                itemService, statSummaryService, detailService, new ObjectMapper());
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setIndicatorCodes(Collections.singletonList("V_RMS"));
+        SteadyChecksquareQueryVO result = new SteadyChecksquareQueryVO();
+        result.setLineId("line-001");
+        result.setLineName("杩涚嚎涓€");
+        result.setTimeStart("2026-05-01 00:00:00");
+        result.setTimeEnd("2026-05-01 00:01:00");
+        result.setIntervalMinutes(1);
+        SteadyChecksquareItemVO item = new SteadyChecksquareItemVO();
+        item.setItemKey("line-001|V_RMS");
+        item.setIndicatorCode("V_RMS");
+        item.setIndicatorName("鐩哥數鍘嬫湁鏁堝€?);
+        item.setIntervalMinutes(1);
+        item.setHasData(true);
+        item.setExpectedPointCount(2);
+        item.setActualPointCount(2);
+        item.setMissingPointCount(0);
+        item.setDataIntegrity(BigDecimal.ONE.setScale(6));
+        item.setDataIntegrityText("100.00%");
+        item.setAbnormal(false);
+        item.setAbnormalPointCount(0);
+        item.setHarmonicParityAbnormal(false);
+        item.setHarmonicParityAbnormalPointCount(0);
+        SteadyChecksquareStatSummaryVO summary = new SteadyChecksquareStatSummaryVO();
+        summary.setStatType("AVG");
+        summary.setSupported(true);
+        summary.setHasData(true);
+        summary.setExpectedPointCount(2);
+        summary.setActualPointCount(2);
+        summary.setMissingPointCount(0);
+        summary.setDataIntegrity(BigDecimal.ONE.setScale(6));
+        summary.setDataIntegrityText("100.00%");
+        item.getStatSummaries().add(summary);
+        result.getItems().add(item);
+
+        saveResult(service, param, result);
+
+        verify(taskService).save(any());
+        verify(itemService).saveBatch(any());
+        verify(statSummaryService).saveBatch(any());
+    }
+
+    @Test
+    void shouldSaveDetailResultsInChunks() {
+        SteadyChecksquareTaskService taskService = mock(SteadyChecksquareTaskService.class);
+        SteadyChecksquareItemService itemService = mock(SteadyChecksquareItemService.class);
+        SteadyChecksquareStatSummaryService statSummaryService = mock(SteadyChecksquareStatSummaryService.class);
+        SteadyChecksquareDetailService detailService = mock(SteadyChecksquareDetailService.class);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                mock(SteadyChecksquareInfluxQueryComponent.class), new SteadyChecksquareCalculator(),
+                mock(SteadyChecksquareValueOrderRuleComponent.class), mock(SteadyChecksquareHarmonicParityRuleComponent.class),
+                new AddDataTimeSlotCalculator(), mock(AddLedgerService.class), taskService,
+                itemService, statSummaryService, detailService, new ObjectMapper());
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setIndicatorCodes(Collections.singletonList("V_RMS"));
+        SteadyChecksquareQueryVO result = new SteadyChecksquareQueryVO();
+        result.setLineId("line-001");
+        result.setLineName("line-001");
+        result.setTimeStart("2026-05-01 00:00:00");
+        result.setTimeEnd("2026-05-01 00:01:00");
+        result.setIntervalMinutes(1);
+        SteadyChecksquareItemVO item = buildOrderItem(true, BigDecimal.ONE.setScale(6));
+        item.setItemKey("line-001|V_RMS");
+        item.setIndicatorCode("V_RMS");
+        for (int i = 0; i < 1001; i++) {
+            SteadyChecksquareValueOrderDetailVO detail = new SteadyChecksquareValueOrderDetailVO();
+            detail.setTime("2026-05-01 00:00:00");
+            detail.setPhase("A");
+            item.getAbnormalDetails().add(detail);
+        }
+        result.getItems().add(item);
+
+        saveResult(service, param, result);
+
+        verify(detailService, times(2)).saveBatch(any());
+    }
+
+    @Test
+    void shouldCountNoDataItemAsAbnormalWhenSavingTask() {
+        SteadyChecksquareTaskService taskService = mock(SteadyChecksquareTaskService.class);
+        SteadyChecksquareServiceImpl service = new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                mock(SteadyChecksquareInfluxQueryComponent.class), new SteadyChecksquareCalculator(),
+                mock(SteadyChecksquareValueOrderRuleComponent.class), mock(SteadyChecksquareHarmonicParityRuleComponent.class),
+                new AddDataTimeSlotCalculator(), mock(AddLedgerService.class), taskService,
+                mock(SteadyChecksquareItemService.class), mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+        SteadyChecksquareQueryParam param = new SteadyChecksquareQueryParam();
+        param.setIndicatorCodes(Collections.singletonList("V_RMS"));
+        SteadyChecksquareQueryVO result = new SteadyChecksquareQueryVO();
+        result.setLineId("line-001");
+        result.setLineName("杩涚嚎涓€");
+        result.setTimeStart("2026-05-01 00:00:00");
+        result.setTimeEnd("2026-05-01 00:01:00");
+        result.setIntervalMinutes(1);
+        SteadyChecksquareItemVO item = new SteadyChecksquareItemVO();
+        item.setItemKey("line-001|V_RMS");
+        item.setIndicatorCode("V_RMS");
+        item.setHasData(false);
+        item.setExpectedPointCount(2);
+        item.setActualPointCount(0);
+        item.setMissingPointCount(2);
+        item.setDataIntegrity(BigDecimal.ZERO.setScale(6));
+        item.setDataIntegrityText("0.00%");
+        item.setAbnormal(false);
+        item.setHarmonicParityAbnormal(false);
+        result.getItems().add(item);
+
+        saveResult(service, param, result);
+
+        ArgumentCaptor<SteadyChecksquareTaskPO> captor = ArgumentCaptor.forClass(SteadyChecksquareTaskPO.class);
+        verify(taskService).save(captor.capture());
+        Assertions.assertEquals(Integer.valueOf(1), captor.getValue().getAbnormalItemCount());
+        Assertions.assertEquals(BigDecimal.ZERO.setScale(6), captor.getValue().getMinDataIntegrity());
+    }
+
+    @Test
+    void shouldMarkAggregateHarmonicItemNoDataWhenDataIntegrityIsZero() {
+        SteadyChecksquareServiceImpl service = newService();
+        SteadyTrendIndicatorDefinitionBO indicator = buildHarmonicIndicator();
+        SteadyChecksquareItemVO orderItem = buildOrderItem(true, BigDecimal.ZERO.setScale(6));
+        orderItem.getStatSummaries().add(buildSummaryVO(true, BigDecimal.ZERO.setScale(6)));
+
+        SteadyChecksquareItemVO result = aggregateHarmonicItems(service, indicator, Collections.singletonList(orderItem));
+
+        Assertions.assertEquals(BigDecimal.ZERO.setScale(6), result.getDataIntegrity());
+        Assertions.assertEquals(Boolean.FALSE, result.getHasData());
+        Assertions.assertEquals(Boolean.FALSE, result.getStatSummaries().get(0).getHasData());
+    }
+
+    @Test
+    void shouldMarkAggregateHarmonicItemHasDataWhenDataIntegrityIsGreaterThanZero() {
+        SteadyChecksquareServiceImpl service = newService();
+        SteadyTrendIndicatorDefinitionBO indicator = buildHarmonicIndicator();
+        SteadyChecksquareItemVO orderItem = buildOrderItem(false, new BigDecimal("0.500000"));
+        orderItem.getStatSummaries().add(buildSummaryVO(false, new BigDecimal("0.500000")));
+
+        SteadyChecksquareItemVO result = aggregateHarmonicItems(service, indicator, Collections.singletonList(orderItem));
+
+        Assertions.assertEquals(new BigDecimal("0.500000"), result.getDataIntegrity());
+        Assertions.assertEquals(Boolean.TRUE, result.getHasData());
+        Assertions.assertEquals(Boolean.TRUE, result.getStatSummaries().get(0).getHasData());
+    }
+
+    private void assertItemInterval(SteadyChecksquareItemVO item, String indicatorCode, int intervalMinutes, int expectedPointCount) {
+        Assertions.assertEquals(indicatorCode, item.getIndicatorCode());
+        Assertions.assertEquals(Integer.valueOf(intervalMinutes), item.getIntervalMinutes());
+        Assertions.assertEquals(Integer.valueOf(expectedPointCount), item.getExpectedPointCount());
+    }
+
+    private SteadyChecksquareServiceImpl newService() {
+        return new SteadyChecksquareServiceImpl(new SteadyTrendIndicatorCatalog(),
+                mock(SteadyChecksquareInfluxQueryComponent.class), new SteadyChecksquareCalculator(),
+                mock(SteadyChecksquareValueOrderRuleComponent.class), mock(SteadyChecksquareHarmonicParityRuleComponent.class),
+                new AddDataTimeSlotCalculator(), mock(AddLedgerService.class), mock(SteadyChecksquareTaskService.class),
+                mock(SteadyChecksquareItemService.class), mock(SteadyChecksquareStatSummaryService.class),
+                mock(SteadyChecksquareDetailService.class), new ObjectMapper());
+    }
+
+    private SteadyChecksquareQueryVO calculate(SteadyChecksquareServiceImpl service, SteadyChecksquareQueryParam param) {
+        try {
+            Method method = SteadyChecksquareServiceImpl.class.getDeclaredMethod("calculate", SteadyChecksquareQueryParam.class);
+            method.setAccessible(true);
+            return (SteadyChecksquareQueryVO) method.invoke(service, param);
+        } catch (Exception exception) {
+            throw new RuntimeException(exception);
+        }
+    }
+
+    private void saveResult(SteadyChecksquareServiceImpl service, SteadyChecksquareQueryParam param, SteadyChecksquareQueryVO result) {
+        try {
+            Method method = SteadyChecksquareServiceImpl.class.getDeclaredMethod("saveResult",
+                    SteadyChecksquareQueryParam.class, SteadyChecksquareQueryVO.class);
+            method.setAccessible(true);
+            method.invoke(service, param, result);
+        } catch (Exception exception) {
+            throw new RuntimeException(exception);
+        }
+    }
+
+    private SteadyChecksquareItemVO aggregateHarmonicItems(SteadyChecksquareServiceImpl service,
+                                                          SteadyTrendIndicatorDefinitionBO indicator,
+                                                          List<SteadyChecksquareItemVO> orderItems) {
+        try {
+            Method method = SteadyChecksquareServiceImpl.class.getDeclaredMethod("aggregateHarmonicItems",
+                    String.class, SteadyTrendIndicatorDefinitionBO.class, List.class, int.class);
+            method.setAccessible(true);
+            return (SteadyChecksquareItemVO) method.invoke(service, "line-001", indicator, orderItems, 1);
+        } catch (Exception exception) {
+            throw new RuntimeException(exception);
+        }
+    }
+
+    private SteadyTrendIndicatorDefinitionBO buildHarmonicIndicator() {
+        SteadyTrendIndicatorDefinitionBO indicator = new SteadyTrendIndicatorDefinitionBO();
+        indicator.setIndicatorCode("V_HARMONIC");
+        indicator.setName("V_HARMONIC");
+        indicator.setHarmonic(true);
+        return indicator;
+    }
+
+    private SteadyChecksquareItemVO buildOrderItem(boolean hasData, BigDecimal dataIntegrity) {
+        SteadyChecksquareItemVO item = new SteadyChecksquareItemVO();
+        item.setItemKey("line-001|V_HARMONIC|2");
+        item.setIndicatorCode("V_HARMONIC");
+        item.setIndicatorName("V_HARMONIC");
+        item.setHarmonicOrder(2);
+        item.setIntervalMinutes(1);
+        item.setHasData(hasData);
+        item.setExpectedPointCount(2);
+        item.setActualPointCount(dataIntegrity.compareTo(BigDecimal.ZERO) > 0 ? 1 : 0);
+        item.setMissingPointCount(dataIntegrity.compareTo(BigDecimal.ZERO) > 0 ? 1 : 2);
+        item.setDataIntegrity(dataIntegrity);
+        item.setAbnormal(false);
+        item.setAbnormalPointCount(0);
+        item.setHarmonicParityAbnormal(false);
+        item.setHarmonicParityAbnormalPointCount(0);
+        return item;
+    }
+
+    private SteadyChecksquareStatSummaryVO buildSummaryVO(boolean hasData, BigDecimal dataIntegrity) {
+        SteadyChecksquareStatSummaryVO summary = new SteadyChecksquareStatSummaryVO();
+        summary.setStatType("AVG");
+        summary.setSupported(true);
+        summary.setHasData(hasData);
+        summary.setExpectedPointCount(2);
+        summary.setActualPointCount(dataIntegrity.compareTo(BigDecimal.ZERO) > 0 ? 1 : 0);
+        summary.setMissingPointCount(dataIntegrity.compareTo(BigDecimal.ZERO) > 0 ? 1 : 2);
+        summary.setDataIntegrity(dataIntegrity);
+        return summary;
+    }
+
+    private SteadyChecksquareItemPO buildItemPO(String itemId, String indicatorCode) {
+        SteadyChecksquareItemPO item = new SteadyChecksquareItemPO();
+        item.setId(itemId);
+        item.setIndicatorCode(indicatorCode);
+        item.setIndicatorName(indicatorCode);
+        item.setState(1);
+        item.setHasData(1);
+        item.setExpectedPointCount(1);
+        item.setActualPointCount(1);
+        item.setMissingPointCount(0);
+        item.setDataIntegrity(BigDecimal.ONE.setScale(6));
+        item.setAbnormal(0);
+        item.setAbnormalPointCount(0);
+        item.setHarmonicParityAbnormal(0);
+        item.setHarmonicParityAbnormalPointCount(0);
+        return item;
+    }
+
+    private SteadyChecksquareStatSummaryPO buildSummaryPO(String itemId, String statType) {
+        SteadyChecksquareStatSummaryPO summary = new SteadyChecksquareStatSummaryPO();
+        summary.setItemId(itemId);
+        summary.setStatType(statType);
+        summary.setSupported(1);
+        summary.setHasData(1);
+        summary.setExpectedPointCount(1);
+        summary.setActualPointCount(1);
+        summary.setMissingPointCount(0);
+        summary.setDataIntegrity(BigDecimal.ONE.setScale(6));
+        return summary;
+    }
+
+    private SteadyChecksquareValueOrderRuleVO emptyRuleResult() {
+        return new SteadyChecksquareValueOrderRuleVO();
+    }
+
+    private SteadyChecksquareHarmonicParityRuleVO emptyHarmonicParityRuleResult() {
+        return new SteadyChecksquareHarmonicParityRuleVO();
+    }
+}
+
+