fix(property): 修复水表能耗预警逻辑

ruoyi-modules/Property/src/main/java/org/dromara/property/service/impl/smartDevicesImpl/TbMeterRecordServiceImpl.java

@@ -263,7 +263,7 @@ public class TbMeterRecordServiceImpl implements ITbMeterRecordService {
                 boolean isDaytime = hour > 8 && hour <= 20;
                 BigDecimal threshold = isDaytime ? info.getDayWarning() : info.getNightWarning();
                 // 如果阈值为0，则不处理（阈值不为0且读数大于阈值，自动上报）
-                if (threshold.compareTo(BigDecimal.ZERO) != 0 && record.getCurrentReading().compareTo(threshold) > 0) {
+                if (threshold.compareTo(BigDecimal.ZERO) != 0 && (record.getCurrentReading().subtract(record.getPreviousReading())).compareTo(threshold) > 0) {
                     // 根据仪表类型设置工单名称和类型
                     String orderName = "能耗异常";
                     Long orderType = 0L;