diff --git a/src/main/java/com/ruoyi/device/domain/impl/tuohengmqtt/handler/TuohengMqttMessageHandler.java b/src/main/java/com/ruoyi/device/domain/impl/tuohengmqtt/handler/TuohengMqttMessageHandler.java
index 7a4bb31..24846b5 100644
--- a/src/main/java/com/ruoyi/device/domain/impl/tuohengmqtt/handler/TuohengMqttMessageHandler.java
+++ b/src/main/java/com/ruoyi/device/domain/impl/tuohengmqtt/handler/TuohengMqttMessageHandler.java
@@ -198,8 +198,20 @@ public class TuohengMqttMessageHandler {
             return null;
         }
         String[] parts = topic.split("/");
-        if (parts.length >= 4) {
-            return parts[3];
+
+        // /topic/v1/airportNest/{deviceSn}/realTime/data
+        // parts[0]="", parts[1]="topic", parts[2]="v1", parts[3]="airportNest", parts[4]=deviceSn
+        if (topic.startsWith("/topic/v1/")) {
+            if (parts.length >= 5) {
+                return parts[4];
+            }
+        }
+        // thing/product/{deviceSn}/osd
+        // parts[0]="thing", parts[1]="product", parts[2]=deviceSn
+        else if (topic.startsWith("thing/product/")) {
+            if (parts.length >= 3) {
+                return parts[2];
+            }
         }
         return null;
     }
@@ -209,11 +221,21 @@ public class TuohengMqttMessageHandler {
             return null;
         }
         String[] parts = topic.split("/");
-        if (parts.length >= 5) {
-            return parts[4];
+
+        // /topic/v1/airportNest/{deviceSn}/realTime/data
+        // parts[0]="", parts[1]="topic", parts[2]="v1", parts[3]="airportNest",
+        // parts[4]=deviceSn, parts[5]="realTime", parts[6]="data"
+        if (topic.startsWith("/topic/v1/")) {
+            if (parts.length >= 7) {
+                return parts[5] + "/" + parts[6];  // "realTime/data" or "realTime/basic"
+            }
         }
-        if (parts.length >= 4) {
-            return parts[3];
+        // thing/product/{deviceSn}/osd
+        // parts[0]="thing", parts[1]="product", parts[2]=deviceSn, parts[3]="osd"
+        else if (topic.startsWith("thing/product/")) {
+            if (parts.length >= 4) {
+                return parts[3];  // "osd" or "events"
+            }
         }
         return null;
     }