diff --git a/src/main/java/com/ruoyi/device/domain/impl/ThingsBoardDomainImpl.java b/src/main/java/com/ruoyi/device/domain/impl/ThingsBoardDomainImpl.java
index 0539a17..9a65feb 100644
--- a/src/main/java/com/ruoyi/device/domain/impl/ThingsBoardDomainImpl.java
+++ b/src/main/java/com/ruoyi/device/domain/impl/ThingsBoardDomainImpl.java
@@ -12,6 +12,7 @@ import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Component;
 import org.thingsboard.rest.client.RestClient;
 import org.thingsboard.server.common.data.Device;
+import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.id.DeviceId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.kv.AttributeKvEntry;
@@ -245,10 +246,22 @@ public class ThingsBoardDomainImpl implements IThingsBoardDomain {
         List<String> childDeviceIds = new ArrayList<>();
 
         try {
-            DeviceId gatewayId = new DeviceId(UUID.fromString(gatewayDeviceId));
 
             // 调用 findInfoByFrom 查询从网关出发的关系信息
             // 对应前端 API: GET /api/relations/info?fromId=xxx&fromType=DEVICE&relationTypeGroup=COMMON
+
+            EntityId gatewayId = new EntityId() {
+                @Override
+                public UUID getId() {
+                    return UUID.fromString(gatewayDeviceId);
+                }
+
+                @Override
+                public EntityType getEntityType() {
+                    return EntityType.DEVICE;
+                }
+            };
+
             List<EntityRelationInfo> relationInfos = client.findInfoByFrom(
                 gatewayId,
                 RelationTypeGroup.COMMON