diff --git a/das/src/main/java/com/das/modules/data/service/TDEngineService.java b/das/src/main/java/com/das/modules/data/service/TDEngineService.java
index 96e89188..ab5c991b 100644
--- a/das/src/main/java/com/das/modules/data/service/TDEngineService.java
+++ b/das/src/main/java/com/das/modules/data/service/TDEngineService.java
@@ -32,9 +32,6 @@ public class TDEngineService {
 
     private HikariDataSource hikariDataSource;
 
-    @Autowired
-    private DataServiceImpl dataService;
-
     @Value("${tdengine.url}")
     private String url;
 
@@ -353,7 +350,7 @@ public class TDEngineService {
                     sb.append("c");
                     sb.append(dv.getDeviceId());
                     sb.append(" using c_");
-                    sb.append(dataService.deviceModelMap.get(dv.getDeviceId().toString()));
+                    sb.append(dv.getModelCode());
                     sb.append("_").append(dv.getIotModelField());
                     sb.append(" tags (");
                     sb.append(dv.getDeviceId());
diff --git a/das/src/main/java/com/das/modules/node/domain/bo/CalculateRTData.java b/das/src/main/java/com/das/modules/node/domain/bo/CalculateRTData.java
index da619244..6b549cba 100644
--- a/das/src/main/java/com/das/modules/node/domain/bo/CalculateRTData.java
+++ b/das/src/main/java/com/das/modules/node/domain/bo/CalculateRTData.java
@@ -20,4 +20,6 @@ public class CalculateRTData {
     private Object dataValue;
 
     private String iotModelField;
+
+    private String modelCode;
 }