fix: 防止空指针

server-service/src/main/java/com/makeit/service/platform/elder/impl/PlatElderRealTimeServiceImpl.java

@@ -477,6 +477,9 @@ public class PlatElderRealTimeServiceImpl implements PlatElderRealTimeService {
 
         List<PlatElderCoordinateVO> voList = new ArrayList<>(10);
 
+        if (platElderIdDTO == null || StringUtils.isEmpty(platElderIdDTO.getElderId())) {
+            return voList;
+        }
         List<PlatDevice> deviceListSpace = getSpaceDevice(platElderIdDTO.getElderId(), platElderIdDTO.getDeviceId());
 
         for (PlatDevice platDevice : deviceListSpace) {