diff --git a/pqs-device/pq-device/pq-device-boot/src/main/java/com/njcn/device/pq/service/impl/TerminalBaseServiceImpl.java b/pqs-device/pq-device/pq-device-boot/src/main/java/com/njcn/device/pq/service/impl/TerminalBaseServiceImpl.java
index e68eeb42a..99883f950 100644
--- a/pqs-device/pq-device/pq-device-boot/src/main/java/com/njcn/device/pq/service/impl/TerminalBaseServiceImpl.java
+++ b/pqs-device/pq-device/pq-device-boot/src/main/java/com/njcn/device/pq/service/impl/TerminalBaseServiceImpl.java
@@ -816,7 +816,7 @@ public class TerminalBaseServiceImpl extends ServiceImpl<LineMapper, Line> imple
     private void coderM3d(Device deviceDetail,Boolean updateFlag){
         if(updateFlag){
             Device deviceRes = deviceMapper.selectById(deviceDetail.getId());
-            if(StrUtil.isNotBlank(deviceDetail.getDevKey()) && !deviceRes.getSeries().equals(deviceDetail.getDevKey())){
+            if(StrUtil.isNotBlank(deviceDetail.getDevKey()) && !deviceRes.getDevKey().equals(deviceDetail.getDevKey())){
                 deviceDetail.setDevKey(DeviceUtil.encodeString(devCD,deviceDetail.getDevKey()));
             }