diff --git a/src/main/java/com/xydl/cac/service/impl/NSensorServiceImpl.java b/src/main/java/com/xydl/cac/service/impl/NSensorServiceImpl.java
index 3c063b0..17a5bcf 100644
--- a/src/main/java/com/xydl/cac/service/impl/NSensorServiceImpl.java
+++ b/src/main/java/com/xydl/cac/service/impl/NSensorServiceImpl.java
@@ -113,7 +113,12 @@ public class NSensorServiceImpl implements NSensorService {
     public NSensor add(NSensor item) throws Exception {
         item.setId(null);
         item.setStatus(Constants.NORMAL);
-        return repository.save(item);
+        repository.save(item);
+        if (item.getDevId() == null) {
+            item.setDevId(item.getId());
+            repository.save(item);
+        }
+        return item;
     }
 
     @Override