fix:将hmi获取温湿度改成三个横杠

snowy-plugin/snowy-plugin-coldchain/src/main/java/vip/xiaonuo/coldchain/modular/hmi/service/impl/HmiServiceImpl.java

@@ -27,12 +27,12 @@ public class HmiServiceImpl implements HmiService {
             roomMonitor.setAlarm(0);
             SensorData sensorData = monitorDeviceService.queryLatestDataByDeviceIdAndRoads(roomMonitor.getSensorCode(),roomMonitor.getSensorRoute());
             if(sensorData==null){
-                roomMonitor.setTemp("-");
-                roomMonitor.setHumidity("-");
+                roomMonitor.setTemp("---");
+                roomMonitor.setHumidity("---");
                 roomMonitor.setAlarm(1);
             }else{
                 if(sensorData.getTemperature() == null){
-                    roomMonitor.setTemp("-");
+                    roomMonitor.setTemp("---");
                 }else{
                     roomMonitor.setTemp(sensorData.getTemperature().toString());
                     if(roomMonitor.getTd()!=null && roomMonitor.getAlarm()!=1){
@@ -43,7 +43,7 @@ public class HmiServiceImpl implements HmiService {
                     }
                 }
                 if(sensorData.getHumidity() == null){
-                    roomMonitor.setHumidity("-");
+                    roomMonitor.setHumidity("---");
                 }else{
                     roomMonitor.setHumidity(sensorData.getHumidity().toString());
                     if(roomMonitor.getHd()!=null && roomMonitor.getAlarm()!=1){