diff --git a/smart-switch-service/src/main/java/com/ruoyi/iot/service/impl/IotConverterImpl.java b/smart-switch-service/src/main/java/com/ruoyi/iot/service/impl/IotConverterImpl.java
index 2a18e8fd..c28da10e 100644
--- a/smart-switch-service/src/main/java/com/ruoyi/iot/service/impl/IotConverterImpl.java
+++ b/smart-switch-service/src/main/java/com/ruoyi/iot/service/impl/IotConverterImpl.java
@@ -34,9 +34,9 @@ public class IotConverterImpl implements IotConverter {
         List<CurrentDatastream> ds2 = data2 == null ? data1.getDatastreams() : data2.getDatastreams();
 
         if (CollectionUtils.isNotEmptyElement(ds1)) {
-            this.toIotDeviceInfo(ds1, ds2);
+            return this.toIotDeviceInfo(ds1, ds2);
         } else if (CollectionUtils.isNotEmptyElement(ds2)) {
-            this.toIotDeviceInfo(ds2, ds1);
+            return this.toIotDeviceInfo(ds2, ds1);
         }
 
         return null;