diff --git a/user-service/src/main/java/com/mh/user/mapper/DeviceInstallMapper.java b/user-service/src/main/java/com/mh/user/mapper/DeviceInstallMapper.java
index 1226275..d3583d4 100644
--- a/user-service/src/main/java/com/mh/user/mapper/DeviceInstallMapper.java
+++ b/user-service/src/main/java/com/mh/user/mapper/DeviceInstallMapper.java
@@ -312,11 +312,11 @@ public interface DeviceInstallMapper extends BaseMapper<DeviceInstallEntity> {
     @Select("select seat from  device_install  where  device_type=#{deviceType}  and  device_addr=#{deviceAddr}  and  building_id=#{buildingId} ")
     String selectSeat(@Param("deviceType") String deviceType,@Param("deviceAddr")  String deviceAddr,@Param("buildingId")  String buildingId);
 
-    @Update("update device_install set deviation_value = #{dataValue} where device_type = #{deviceType} and building_id = #{buildingId}")
+    @Update("update device_install set deviation_value = #{realValue}-isnull(last_value,0) where device_type = #{deviceType} and building_id = #{buildingId}")
     void updateDeviation(@Param("buildingId") Integer buildingId,
                          @Param("deviceType") String deviceType,
                          @Param("param") Integer param,
-                         @Param("dataValue") String dataValue);
+                         @Param("realValue") String realValue);
 
     @Select("select isnull(deviation_value,0) from device_install where device_addr = #{deviceAddr} and device_type = #{deviceType} and building_id = #{buildingId}")
     Double selectDeviceDeviation(@Param("deviceAddr") String deviceAddr,
diff --git a/user-service/src/main/java/com/mh/user/service/impl/DeviceInstallServiceImpl.java b/user-service/src/main/java/com/mh/user/service/impl/DeviceInstallServiceImpl.java
index e750a16..b69a8dc 100644
--- a/user-service/src/main/java/com/mh/user/service/impl/DeviceInstallServiceImpl.java
+++ b/user-service/src/main/java/com/mh/user/service/impl/DeviceInstallServiceImpl.java
@@ -387,9 +387,9 @@ public class DeviceInstallServiceImpl implements DeviceInstallService {
             // 更新电表
             deviceTypeStr = "电表";
         }
-        String dataValue = new BigDecimal(realValue).subtract(new BigDecimal(readValue)).toString();
+//        String dataValue = new BigDecimal(realValue).subtract(new BigDecimal(readValue)).toString();
         try {
-            deviceInstallMapper.updateDeviation(buildingId, deviceTypeStr, param, dataValue);
+            deviceInstallMapper.updateDeviation(buildingId, deviceTypeStr, param, realValue);
             return true;
         } catch (Exception e) {
             throw new RuntimeException(e);