fix：“增加异常离线判断时间“

src/main/java/com/szwl/service/impl/TEquipmentServiceImpl.java

@@ -264,7 +264,7 @@ public class TEquipmentServiceImpl extends ServiceImpl<TEquipmentMapper, TEquipm
                 if (equipment.getModifyDate() != null) {
                     // 如果设备的最后刷新时间超过480秒前，则清除设备状态信息，更改为关机状态
                     long updateTime = equipment.getModifyDate().getTime();
-                    if (nowTime > updateTime && (nowTime - updateTime) > 480000) {
+                    if (nowTime > updateTime && (nowTime - updateTime) > 720000) {
                         equipment.setCabinetTm("");
                         equipment.setCabinetHd("");
                         equipment.setFurnaceTm("");