diff --git a/frontend/src/components/echarts/line/index.vue b/frontend/src/components/echarts/line/index.vue
index f58827a..d884214 100644
--- a/frontend/src/components/echarts/line/index.vue
+++ b/frontend/src/components/echarts/line/index.vue
@@ -130,6 +130,7 @@ const initChart = () => {
         chart.resize()
     }, 0)
 }
+const getChartInstance = () => chart
 const handlerBar = (options: any) => {
     if (Array.isArray(options.series)) {
         options.series.forEach((item: any) => {
@@ -253,7 +254,7 @@ onMounted(() => {
     initChart()
     resizeObserver.observe(chartRef.value!)
 })
-defineExpose({ initChart })
+defineExpose({ initChart, getChartInstance })
 onBeforeUnmount(() => {
     resizeObserver.unobserve(chartRef.value!)
     chart?.dispose()
diff --git a/frontend/src/config/index.ts b/frontend/src/config/index.ts
index c269a4c..30c73b7 100644
--- a/frontend/src/config/index.ts
+++ b/frontend/src/config/index.ts
@@ -1,7 +1,7 @@
 // ? 全局默认配置项
 
 // 首页地址（默认）
-export const HOME_URL: string = "/home/index";
+export const HOME_URL: string = "/machine/freqConverter";
 
 // export const HOME_URL: string = "/machine/controlSource";
 
diff --git a/frontend/src/layouts/components/Footer/index.vue b/frontend/src/layouts/components/Footer/index.vue
index dd146e5..badeb68 100644
--- a/frontend/src/layouts/components/Footer/index.vue
+++ b/frontend/src/layouts/components/Footer/index.vue
@@ -26,6 +26,7 @@
 </template>
 <script lang="ts" setup>
 import { computed } from 'vue'
+import { HOME_URL } from '@/config'
 import { useAuthStore } from '@/stores/modules/auth'
 import { useModeStore } from '@/stores/modules/mode' // 引入模式 store
 import { useTabsStore } from '@/stores/modules/tabs'
@@ -74,8 +75,8 @@ const handelOpen = async (item: string, key: string) => {
     await initDynamicRouter()
 
     // 只有当目标路径与当前路径不同时才跳转
-    if (router.currentRoute.value.path !== '/home/index') {
-        await router.push({ path: '/home/index' })
+    if (router.currentRoute.value.path !== HOME_URL) {
+        await router.push({ path: HOME_URL })
     } else {
         // 如果已在目标页面，手动触发组件更新
         window.location.reload() // 或者采用其他方式刷新数据
diff --git a/frontend/src/layouts/components/Header/components/Avatar.vue b/frontend/src/layouts/components/Header/components/Avatar.vue
index 55840a2..a16cc7e 100644
--- a/frontend/src/layouts/components/Header/components/Avatar.vue
+++ b/frontend/src/layouts/components/Header/components/Avatar.vue
@@ -70,7 +70,7 @@
 
 <script setup lang="ts">
 import { computed, ref } from 'vue'
-import { LOGIN_URL } from '@/config'
+import { HOME_URL, LOGIN_URL } from '@/config'
 import { useRouter } from 'vue-router'
 import { useUserStore } from '@/stores/modules/user'
 import { ElMessage, ElMessageBox } from 'element-plus'
@@ -132,7 +132,7 @@ const changeScene = async (value: string) => {
 //模式切换
 const changeMode = async () => {
     authStore.changeModel()
-    await router.push('/home/index')
+    await router.push(HOME_URL)
 }
 </script>
 
diff --git a/frontend/src/layouts/components/Tabs/index.vue b/frontend/src/layouts/components/Tabs/index.vue
index 181b5a9..e417b30 100644
--- a/frontend/src/layouts/components/Tabs/index.vue
+++ b/frontend/src/layouts/components/Tabs/index.vue
@@ -29,6 +29,7 @@ import { useRoute, useRouter } from 'vue-router'
 import { useGlobalStore } from '@/stores/modules/global'
 import { useTabsStore } from '@/stores/modules/tabs'
 import { useAuthStore } from '@/stores/modules/auth'
+import { HOME_URL } from '@/config'
 import { TabPaneName, TabsPaneContext } from 'element-plus'
 import MoreButton from './components/MoreButton.vue'
 
@@ -73,13 +74,13 @@ watch(
 // 初始化需要固定的 tabs
 const initTabs = () => {
     authStore.flatMenuListGet.forEach(item => {
-        if (item.meta.isAffix && !item.meta.isHide && !item.meta.isFull) {
+        if (item.path === HOME_URL && !item.meta.isHide && !item.meta.isFull) {
             const tabsParams = {
                 icon: item.meta.icon,
                 title: item.meta.title,
                 path: item.path,
                 name: item.name,
-                close: !item.meta.isAffix,
+                close: false,
                 isKeepAlive: item.meta.isKeepAlive,
                 unshift: true
             }
diff --git a/frontend/src/stores/modules/auth.ts b/frontend/src/stores/modules/auth.ts
index 5e99f51..15c596a 100644
--- a/frontend/src/stores/modules/auth.ts
+++ b/frontend/src/stores/modules/auth.ts
@@ -3,6 +3,7 @@ import { type AuthState } from '@/stores/interface'
 import { getAuthButtonListApi, getAuthMenuListApi } from '@/api/user/login'
 import { getAllBreadcrumbList, getFlatMenuList, getShowMenuList } from '@/utils'
 import { AUTH_STORE_KEY } from '@/stores/constant'
+import { HOME_URL } from '@/config'
 import { useModeStore } from '@/stores/modules/mode'
 import { getLicense } from '@/api/activate'
 import type { Activate } from '@/api/activate/interface'
@@ -52,7 +53,7 @@ export const useAuthStore = defineStore(AUTH_STORE_KEY, {
                     ? filterMenuByExcludedNames(menuData, ['testSource', 'testScript', 'controlSource'])
                     : filterMenuByExcludedNames(menuData, ['standardDevice'])
 
-            this.authMenuList = filteredMenu
+            this.authMenuList = normalizeHomeAffix(filteredMenu)
         },
         // Set RouteName
         async setRouteName(name: string) {
@@ -112,3 +113,22 @@ function filterMenuByExcludedNames(menuList: any[], excludedNames: string[]): an
         return !excludedNames.includes(menu.name)
     })
 }
+
+function normalizeHomeAffix(menuList: any[]): any[] {
+    return menuList.map(menu => {
+        const nextMenu = { ...menu }
+
+        if (nextMenu.meta) {
+            nextMenu.meta = {
+                ...nextMenu.meta,
+                isAffix: nextMenu.path === HOME_URL
+            }
+        }
+
+        if (Array.isArray(nextMenu.children) && nextMenu.children.length > 0) {
+            nextMenu.children = normalizeHomeAffix(nextMenu.children)
+        }
+
+        return nextMenu
+    })
+}
diff --git a/frontend/src/views/login/components/LoginForm.vue b/frontend/src/views/login/components/LoginForm.vue
index 8b36cd7..0eac07f 100644
--- a/frontend/src/views/login/components/LoginForm.vue
+++ b/frontend/src/views/login/components/LoginForm.vue
@@ -120,7 +120,7 @@ const login = (formEl: FormInstance | undefined) => {
             await tabsStore.setTabs([])
             await keepAliveStore.setKeepAliveName([])
             // 登录默认不显示菜单和导航栏
-            await authStore.resetAuthStore()
+            await authStore.setShowMenu()
             // 跳转到首页
             await router.push(HOME_URL)
         } finally {
diff --git a/frontend/src/views/machine/freqConverter/components/freqConverterDipChart.vue b/frontend/src/views/machine/freqConverter/components/freqConverterDipChart.vue
index ca2e8f0..ff52d72 100644
--- a/frontend/src/views/machine/freqConverter/components/freqConverterDipChart.vue
+++ b/frontend/src/views/machine/freqConverter/components/freqConverterDipChart.vue
@@ -1,4 +1,4 @@
-<template>
+<template>
   <el-card class="dip-chart-card" shadow="never">
     <template #header>
       <div class="card-header">
@@ -9,50 +9,59 @@
           </div>
         </div>
 
-        <el-button
+        <div class="header-actions">
+          <el-button type="primary" plain :icon="Download" :disabled="!hasChartData" @click="downloadChartImage">
+            下载图片
+          </el-button>
+          <el-button type="primary" plain :icon="Document" :disabled="!hasChartData" @click="exportChartData">
+            导出数据
+          </el-button>
+          <el-button
             type="primary"
             plain
             :loading="curveLoading"
             class="draw-curve-button"
             @click="drawCharacteristicCurve"
-        >
-          绘制特性曲线
-        </el-button>
+          >
+            绘制特性曲线
+          </el-button>
+        </div>
       </div>
     </template>
 
     <div class="chart-wrapper">
-      <MyEchart :options="chartOptions"/>
+      <MyEchart ref="chartRef" :options="chartOptions" />
     </div>
-
   </el-card>
 </template>
 
 <script lang="ts" setup>
-import {computed, ref, watch} from 'vue'
-import {ElMessage} from 'element-plus'
+import { computed, ref, watch } from 'vue'
+import { ElMessage } from 'element-plus'
+import { Document, Download } from '@element-plus/icons-vue'
+import * as XLSX from 'xlsx'
 import MyEchart from '@/components/echarts/line/index.vue'
-import {getFreqConverterSCurve} from '@/api/device/freqConverter'
+import { getFreqConverterSCurve } from '@/api/device/freqConverter'
 
 type ChartPointStatus = 'pass' | 'fail'
 
 interface ChartPoint {
-  duration: number;
-  residualVoltage: number;
-  status: ChartPointStatus;
+  duration: number
+  residualVoltage: number
+  status: ChartPointStatus
 }
 
 interface NormalizedTolerantPoint {
-  duration: number;
-  residualVoltage: number;
-  tolerant: number | null;
-  status: ChartPointStatus;
+  duration: number
+  residualVoltage: number
+  tolerant: number | null
+  status: ChartPointStatus
 }
 
 const props = defineProps<{
-  selectedMapping?: Record<string, any> | null;
-  webMsgSend?: any;
-  resultData?: any;
+  selectedMapping?: Record<string, any> | null
+  webMsgSend?: any
+  resultData?: any
 }>()
 
 const STATUS_COLOR_MAP: Record<ChartPointStatus, string> = {
@@ -63,6 +72,7 @@ const STATUS_COLOR_MAP: Record<ChartPointStatus, string> = {
 const chartPoints = ref<ChartPoint[]>([])
 const characteristicCurveData = ref<Array<[number, number]>>([])
 const curveLoading = ref(false)
+const chartRef = ref<any>(null)
 
 const selectedMappingText = computed(() => {
   if (!props.selectedMapping) {
@@ -72,6 +82,91 @@ const selectedMappingText = computed(() => {
   return `变频器：${props.selectedMapping.freqConverterName || '-'}`
 })
 
+const positiveDurations = computed(() => {
+  return [
+    ...chartPoints.value.map(item => item.duration),
+    ...characteristicCurveData.value.map(item => item[0])
+  ].filter(item => Number.isFinite(item) && item > 0)
+})
+
+const xAxisMin = computed(() => {
+  if (!positiveDurations.value.length) {
+    return 0.001
+  }
+
+  const minValue = Math.min(...positiveDurations.value)
+  return Math.min(0.001, Number(minValue.toFixed(3)))
+})
+
+const xAxisMax = computed(() => {
+  if (!positiveDurations.value.length) {
+    return 60
+  }
+
+  const maxValue = Math.max(...positiveDurations.value)
+  return Math.max(Number((maxValue * 1.05).toFixed(3)), 60)
+})
+
+const sortedChartPoints = computed(() => {
+  return [...chartPoints.value].sort((a, b) => {
+    if (a.duration !== b.duration) {
+      return a.duration - b.duration
+    }
+
+    return a.residualVoltage - b.residualVoltage
+  })
+})
+
+const sortedCharacteristicCurveData = computed(() => {
+  return [...characteristicCurveData.value].sort((a, b) => {
+    if (a[0] !== b[0]) {
+      return a[0] - b[0]
+    }
+
+    return a[1] - b[1]
+  })
+})
+
+const hasChartData = computed(() => {
+  return sortedChartPoints.value.length > 0 || sortedCharacteristicCurveData.value.length > 0
+})
+
+const formatLogDurationLabel = (value: number) => {
+  if (!Number.isFinite(value)) {
+    return ''
+  }
+
+  if (value >= 1) {
+    return `${Number(value.toFixed(2))}`
+  }
+
+  return `${Number(value.toFixed(3))}`
+}
+
+const sanitizeFileName = (value: string) => {
+  return value.replace(/[\\/:*?"<>|]/g, '_').trim() || '未命名变频器'
+}
+
+const buildFileName = (prefix: string, suffix: string) => {
+  const freqConverterName = sanitizeFileName(props.selectedMapping?.freqConverterName || '未命名变频器')
+  return `${prefix}_${freqConverterName}.${suffix}`
+}
+
+const triggerDownload = (url: string, fileName: string) => {
+  const link = document.createElement('a')
+  link.style.display = 'none'
+  link.href = url
+  link.download = fileName
+  document.body.appendChild(link)
+  link.click()
+  document.body.removeChild(link)
+}
+
+const toNumber = (value: unknown) => {
+  const result = Number(value)
+  return Number.isFinite(result) ? result : null
+}
+
 const normalizeTolerantValue = (value: unknown) => {
   if (value === undefined || value === null || value === '') {
     return null
@@ -89,246 +184,12 @@ const normalizeDuration = (source: Record<string, any>) => {
   return toNumber(
     source.durationMs !== undefined && source.durationMs !== null
       ? Number(source.durationMs) / 1000
-      : source.duration ??
-        source.x ??
-        source.dipDuration ??
-        source.retainTime ??
-        source.durationValue
+      : source.duration ?? source.x ?? source.dipDuration ?? source.retainTime ?? source.durationValue
   )
 }
 
 const normalizeResidualVoltageValue = (source: Record<string, any>) => {
-  return toNumber(
-    source.residualVoltage ??
-    source.y ??
-    source.residual ??
-    source.voltage ??
-    source.residual_value
-  )
-}
-
-const normalizeCurveData = (source: unknown) => {
-  if (!Array.isArray(source)) {
-    return [] as Array<[number, number]>
-  }
-
-  return source
-      .map(item => {
-        if (Array.isArray(item) && item.length >= 2) {
-          const duration = Number(item[0])
-          const residualVoltage = Number(item[1])
-          if (Number.isFinite(duration) && Number.isFinite(residualVoltage)) {
-            return [duration, residualVoltage] as [number, number]
-          }
-        }
-
-        if (item && typeof item === 'object') {
-          const record = item as Record<string, any>
-          const tolerant = normalizeTolerantValue(record.tolerant)
-          if (tolerant !== null && tolerant !== 2) {
-            return null
-          }
-
-          const duration = normalizeDuration(record)
-          const residualVoltage = normalizeResidualVoltageValue(record)
-          if (duration !== null && residualVoltage !== null) {
-            return [duration, residualVoltage] as [number, number]
-          }
-        }
-
-        return null
-      })
-      .filter((item): item is [number, number] => !!item)
-}
-
-const extractCurveData = (payload: any) => {
-  if (!payload) {
-    return [] as Array<[number, number]>
-  }
-
-  const candidates = [
-    payload,
-    payload?.data,
-    payload?.data?.records,
-    payload?.data?.points,
-    payload?.points,
-    payload?.records,
-    payload?.list
-  ]
-
-  for (const candidate of candidates) {
-    const normalized = normalizeCurveData(candidate)
-    if (normalized.length) {
-      return normalized
-    }
-  }
-
-  return [] as Array<[number, number]>
-}
-
-const drawCharacteristicCurve = async () => {
-  const freqConverterId = props.selectedMapping?.freqConverterId
-  if (!freqConverterId) {
-    ElMessage.warning('未获取到变频器ID')
-    return
-  }
-
-  curveLoading.value = true
-
-  try {
-    const result = await getFreqConverterSCurve({
-      converterId: freqConverterId
-    })
-
-    const normalizedCurveData = extractCurveData(result)
-
-    if (!normalizedCurveData.length) {
-      characteristicCurveData.value = []
-      ElMessage.warning('未获取到特性曲线数据')
-      return
-    }
-
-    characteristicCurveData.value = normalizedCurveData
-  } catch (error) {
-    console.error('绘制特性曲线失败:', error)
-    characteristicCurveData.value = []
-  } finally {
-    curveLoading.value = false
-  }
-}
-
-const chartOptions = computed(() => {
-  const maxDuration = 2
-  // const maxDuration = Math.max(
-  //   2,
-  //   ...chartPoints.value.map(item => item.duration).filter(item => Number.isFinite(item)),
-  //   ...characteristicCurveData.value.map(item => item[0]).filter(item => Number.isFinite(item))
-  // )
-
-  return {
-    title: {
-      text: ''
-    },
-    grid: {
-      top: 30,
-      left: 48,
-      right: 22,
-      bottom: 52
-    },
-    tooltip: {
-      trigger: 'item',
-      formatter(params: any) {
-        if (params.seriesType === 'line') {
-          return ''
-        }
-
-        const [duration, residualVoltage, statusText] = params.value
-        return [
-          `持续时间: ${duration} s`,
-          `残余电压: ${residualVoltage} %`,
-          `状态: ${statusText}`
-        ].join('<br/>')
-      }
-    },
-    legend: {
-      top: 0,
-      right: 0,
-      data: ['特性测试曲线']
-    },
-    xAxis: {
-      type: 'log',
-      name: '持续时间(s)',
-      nameLocation: 'middle',
-      nameGap: 34,
-      min: 0.01,
-      max: 60,
-      logBase: 10,
-      minorTick: {
-        show: true,
-        splitNumber: 10
-      },
-      minorSplitLine: {
-        show: true,
-        lineStyle: {
-          color: '#e8edf6'
-        }
-      },
-      splitLine: {
-        lineStyle: {
-          color: '#cfd8e6'
-        }
-      },
-      axisLabel: {
-        formatter(value: number) {
-          return value.toFixed(2)
-        }
-      }
-    },
-    yAxis: {
-      type: 'value',
-      name: '暂降幅值',
-      min: 0,
-      max: 100,
-      interval: 10,
-      minorTick: {
-        show: true,
-        splitNumber: 2
-      },
-      minorSplitLine: {
-        show: true,
-        lineStyle: {
-          color: '#e8edf6'
-        }
-      },
-      splitLine: {
-        lineStyle: {
-          color: '#cfd8e6'
-        }
-      },
-      axisLabel: {
-        formatter(value: number) {
-          return `${value}%`
-        }
-      }
-    },
-    dataZoom: [],
-    series: [
-      {
-        name: '特性测试曲线',
-        type: 'line',
-        smooth: true,
-        showSymbol: true,
-        symbolSize: 7,
-        lineStyle: {
-          color: '#ff2a2a',
-          width: 3
-        },
-        itemStyle: {
-          color: '#ff2a2a'
-        },
-        data: characteristicCurveData.value
-      },
-      {
-        name: '暂降点',
-        type: 'scatter',
-        symbolSize: 10,
-        data: chartPoints.value.map(item => ({
-          value: [item.duration, item.residualVoltage, getStatusText(item.status)],
-          itemStyle: {
-            color: STATUS_COLOR_MAP[item.status]
-          }
-        }))
-      }
-    ],
-    options: {
-      animation: false
-    }
-  }
-})
-
-const toNumber = (value: unknown) => {
-  const result = Number(value)
-  return Number.isFinite(result) ? result : null
+  return toNumber(source.residualVoltage ?? source.y ?? source.residual ?? source.voltage ?? source.residual_value)
 }
 
 const normalizeStatus = (value: unknown): ChartPointStatus => {
@@ -362,14 +223,14 @@ const normalizeTolerantPoint = (source: Record<string, any>): NormalizedTolerant
 
   const tolerant = normalizeTolerantValue(
     source.tolerant ??
-    source.endure ??
-    source.isEndure ??
-    source.tolerable ??
-    source.isTolerable ??
-    source.status ??
-    source.pointStatus ??
-    source.result ??
-    source.state
+      source.endure ??
+      source.isEndure ??
+      source.tolerable ??
+      source.isTolerable ??
+      source.status ??
+      source.pointStatus ??
+      source.result ??
+      source.state
   )
 
   return {
@@ -382,25 +243,21 @@ const normalizeTolerantPoint = (source: Record<string, any>): NormalizedTolerant
         : tolerant === 1
           ? 'pass'
           : normalizeStatus(
-            source.tolerant ??
-            source.endure ??
-            source.isEndure ??
-            source.tolerable ??
-            source.isTolerable ??
-            source.status ??
-            source.pointStatus ??
-            source.result ??
-            source.state
-          )
+              source.tolerant ??
+                source.endure ??
+                source.isEndure ??
+                source.tolerable ??
+                source.isTolerable ??
+                source.status ??
+                source.pointStatus ??
+                source.result ??
+                source.state
+            )
   }
 }
 
 const getStatusText = (status: ChartPointStatus) => {
-  if (status === 'fail') {
-    return '不耐受'
-  }
-
-  return '耐受'
+  return status === 'fail' ? '不耐受' : '耐受'
 }
 
 const normalizePoint = (source: Record<string, any>): ChartPoint | null => {
@@ -416,6 +273,65 @@ const normalizePoint = (source: Record<string, any>): ChartPoint | null => {
   }
 }
 
+const normalizeCurveData = (source: unknown) => {
+  if (!Array.isArray(source)) {
+    return [] as Array<[number, number]>
+  }
+
+  return source
+    .map(item => {
+      if (Array.isArray(item) && item.length >= 2) {
+        const duration = Number(item[0])
+        const residualVoltage = Number(item[1])
+        if (Number.isFinite(duration) && Number.isFinite(residualVoltage) && duration > 0) {
+          return [duration, residualVoltage] as [number, number]
+        }
+      }
+
+      if (item && typeof item === 'object') {
+        const record = item as Record<string, any>
+        const tolerant = normalizeTolerantValue(record.tolerant)
+        if (tolerant !== null && tolerant !== 2) {
+          return null
+        }
+
+        const duration = normalizeDuration(record)
+        const residualVoltage = normalizeResidualVoltageValue(record)
+        if (duration !== null && residualVoltage !== null && duration > 0) {
+          return [duration, residualVoltage] as [number, number]
+        }
+      }
+
+      return null
+    })
+    .filter((item): item is [number, number] => !!item)
+}
+
+const extractCurveData = (payload: any) => {
+  if (!payload) {
+    return [] as Array<[number, number]>
+  }
+
+  const candidates = [
+    payload,
+    payload?.data,
+    payload?.data?.records,
+    payload?.data?.points,
+    payload?.points,
+    payload?.records,
+    payload?.list
+  ]
+
+  for (const candidate of candidates) {
+    const normalized = normalizeCurveData(candidate)
+    if (normalized.length) {
+      return normalized
+    }
+  }
+
+  return [] as Array<[number, number]>
+}
+
 const extractCharacteristicCurvePoints = (payload: any) => {
   const result: Array<[number, number]> = []
   const seen = new Set<string>()
@@ -494,63 +410,288 @@ const extractPoints = (payload: any) => {
   return result
 }
 
-watch(
-    () => props.webMsgSend,
-    newValue => {
-      if (!newValue) {
-        return
-      }
+const drawCharacteristicCurve = async () => {
+  const freqConverterId = props.selectedMapping?.freqConverterId
+  if (!freqConverterId) {
+    ElMessage.warning('未获取到变频器ID')
+    return
+  }
 
-      const nextPoints = extractPoints(newValue)
-      if (!nextPoints.length) {
-        const nextCurvePoints = extractCharacteristicCurvePoints(newValue)
-        if (nextCurvePoints.length) {
-          characteristicCurveData.value = nextCurvePoints
-        }
-        return
-      }
+  curveLoading.value = true
 
-      const existingPointMap = new Map(
-        chartPoints.value.map(item => [`${item.duration}|${item.residualVoltage}`, item] as const)
-      )
+  try {
+    const result = await getFreqConverterSCurve({
+      converterId: freqConverterId
+    })
 
-      nextPoints.forEach(item => {
-        const key = `${item.duration}|${item.residualVoltage}`
-        existingPointMap.set(key, item)
-      })
+    const normalizedCurveData = extractCurveData(result)
 
-      chartPoints.value = Array.from(existingPointMap.values())
-
-      const nextCurvePoints = extractCharacteristicCurvePoints(newValue)
-      if (nextCurvePoints.length) {
-        characteristicCurveData.value = nextCurvePoints
-      }
-    },
-    {deep: true}
-)
-
-watch(
-    () => props.resultData,
-    newValue => {
-      if (!newValue) {
-        return
-      }
-
-      chartPoints.value = extractPoints(newValue)
-      const nextCurvePoints = extractCharacteristicCurvePoints(newValue)
-      if (nextCurvePoints.length) {
-        characteristicCurveData.value = nextCurvePoints
-      }
-    },
-    {deep: true, immediate: true}
-)
-
-watch(
-    () => props.selectedMapping,
-    () => {
-      chartPoints.value = []
+    if (!normalizedCurveData.length) {
       characteristicCurveData.value = []
+      ElMessage.warning('未获取到特性曲线数据')
+      return
     }
+
+    characteristicCurveData.value = normalizedCurveData
+  } catch (error) {
+    console.error('draw characteristic curve failed:', error)
+    characteristicCurveData.value = []
+  } finally {
+    curveLoading.value = false
+  }
+}
+
+const downloadChartImage = async () => {
+  if (!hasChartData.value) {
+    ElMessage.warning('暂无可下载的图表数据')
+    return
+  }
+
+  await nextTick()
+
+  const chartInstance = chartRef.value?.getChartInstance?.()
+  if (!chartInstance) {
+    ElMessage.warning('图表尚未渲染完成')
+    return
+  }
+
+  const imageUrl = chartInstance.getDataURL({
+    type: 'png',
+    pixelRatio: 2,
+    backgroundColor: '#ffffff'
+  })
+
+  triggerDownload(imageUrl, buildFileName('变频器耐受图', 'png'))
+  ElMessage.success('图表图片导出成功')
+}
+
+const exportChartData = () => {
+  if (!hasChartData.value) {
+    ElMessage.warning('暂无可导出的点位数据')
+    return
+  }
+
+  const workbook = XLSX.utils.book_new()
+
+  if (sortedChartPoints.value.length) {
+    const pointSheet = XLSX.utils.json_to_sheet(
+      sortedChartPoints.value.map((item, index) => ({
+        序号: index + 1,
+        持续时间_s: item.duration,
+        暂降幅值_pct: item.residualVoltage,
+        状态: getStatusText(item.status)
+      }))
+    )
+    XLSX.utils.book_append_sheet(workbook, pointSheet, '暂降点')
+  }
+
+  if (sortedCharacteristicCurveData.value.length) {
+    const curveSheet = XLSX.utils.json_to_sheet(
+      sortedCharacteristicCurveData.value.map((item, index) => ({
+        序号: index + 1,
+        持续时间_s: item[0],
+        暂降幅值_pct: item[1]
+      }))
+    )
+    XLSX.utils.book_append_sheet(workbook, curveSheet, '特性曲线')
+  }
+
+  const workbookBuffer = XLSX.write(workbook, { bookType: 'xlsx', type: 'array' })
+  const blob = new Blob([workbookBuffer], {
+    type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
+  })
+  const blobUrl = window.URL.createObjectURL(blob)
+
+  try {
+    triggerDownload(blobUrl, buildFileName('变频器耐受图数据', 'xlsx'))
+    ElMessage.success('点位数据导出成功')
+  } finally {
+    window.URL.revokeObjectURL(blobUrl)
+  }
+}
+
+const chartOptions = computed(() => {
+  return {
+    title: {
+      text: ''
+    },
+    grid: {
+      top: 30,
+      left: 48,
+      right: 22,
+      bottom: 52
+    },
+    tooltip: {
+      trigger: 'item',
+      formatter(params: any) {
+        const rawValue = Array.isArray(params.value) ? params.value : params.value?.value
+        if (!Array.isArray(rawValue)) {
+          return ''
+        }
+
+        const [duration, residualVoltage, statusText] = rawValue
+        return [
+          `类型: ${params.seriesName}`,
+          `持续时间: ${duration} s`,
+          `残余电压: ${residualVoltage} %`,
+          ...(statusText ? [`状态: ${statusText}`] : [])
+        ].join('<br/>')
+      }
+    },
+    legend: {
+      top: 0,
+      right: 0,
+      data: ['特性测试曲线']
+    },
+    xAxis: {
+      type: 'log',
+      name: '持续时间(s)',
+      nameLocation: 'middle',
+      nameGap: 34,
+      min: xAxisMin.value,
+      max: xAxisMax.value,
+      logBase: 10,
+      minorTick: {
+        show: true,
+        splitNumber: 10
+      },
+      minorSplitLine: {
+        show: false,
+        lineStyle: {
+          color: '#e8edf6'
+        }
+      },
+      splitLine: {
+        show: true,
+        lineStyle: {
+          color: '#cfd8e6'
+        }
+      },
+      axisLabel: {
+        formatter(value: number) {
+          return formatLogDurationLabel(value)
+        }
+      }
+    },
+    yAxis: {
+      type: 'value',
+      name: '暂降幅值',
+      min: 0,
+      max: 100,
+      interval: 10,
+      minorTick: {
+        show: true,
+        splitNumber: 2
+      },
+      minorSplitLine: {
+        show: true,
+        lineStyle: {
+          color: '#e8edf6'
+        }
+      },
+      splitLine: {
+        lineStyle: {
+          color: '#cfd8e6'
+        }
+      },
+      axisLabel: {
+        formatter(value: number) {
+          return `${value}%`
+        }
+      }
+    },
+    dataZoom: [],
+    series: [
+      {
+        name: '特性测试曲线',
+        type: 'line',
+        smooth: true,
+        showSymbol: true,
+        symbolSize: 7,
+        lineStyle: {
+          color: '#ff2a2a',
+          width: 3
+        },
+        itemStyle: {
+          color: '#ff2a2a'
+        },
+        data: characteristicCurveData.value.map(item => [item[0], item[1], '特性曲线'])
+      },
+      {
+        name: '暂降点',
+        type: 'scatter',
+        symbolSize: 10,
+        data: chartPoints.value.map(item => ({
+          value: [item.duration, item.residualVoltage, getStatusText(item.status)],
+          itemStyle: {
+            color: STATUS_COLOR_MAP[item.status]
+          }
+        }))
+      }
+    ],
+    options: {
+      animation: false
+    }
+  }
+})
+
+watch(
+  () => props.webMsgSend,
+  newValue => {
+    if (!newValue) {
+      return
+    }
+
+    const nextPoints = extractPoints(newValue)
+    if (!nextPoints.length) {
+      const nextCurvePoints = extractCharacteristicCurvePoints(newValue)
+      if (nextCurvePoints.length) {
+        characteristicCurveData.value = nextCurvePoints
+      }
+      return
+    }
+
+    const existingPointMap = new Map(
+      chartPoints.value.map(item => [`${item.duration}|${item.residualVoltage}`, item] as const)
+    )
+
+    nextPoints.forEach(item => {
+      const key = `${item.duration}|${item.residualVoltage}`
+      existingPointMap.set(key, item)
+    })
+
+    chartPoints.value = Array.from(existingPointMap.values())
+
+    const nextCurvePoints = extractCharacteristicCurvePoints(newValue)
+    if (nextCurvePoints.length) {
+      characteristicCurveData.value = nextCurvePoints
+    }
+  },
+  { deep: true }
+)
+
+watch(
+  () => props.resultData,
+  newValue => {
+    if (!newValue) {
+      return
+    }
+
+    chartPoints.value = extractPoints(newValue)
+    const nextCurvePoints = extractCharacteristicCurvePoints(newValue)
+    if (nextCurvePoints.length) {
+      characteristicCurveData.value = nextCurvePoints
+    }
+  },
+  { deep: true, immediate: true }
+)
+
+watch(
+  () => props.selectedMapping,
+  () => {
+    chartPoints.value = []
+    characteristicCurveData.value = []
+  }
 )
 </script>
 
@@ -574,6 +715,14 @@ watch(
   gap: 12px;
 }
 
+.header-actions {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 8px;
+  flex-wrap: wrap;
+}
+
 .card-header-main {
   min-width: 0;
 }