diff --git a/app/services/camera_name_service.py b/app/services/camera_name_service.py
index 6b98099..4e68959 100644
--- a/app/services/camera_name_service.py
+++ b/app/services/camera_name_service.py
@@ -200,9 +200,9 @@ class CameraNameService:
         if not camera_info:
             return device_id
 
-        # 优先使用 camera_name（用户自定义名称）
+        # 优先使用 camera_name（用户自定义名称），跳过无效值
         camera_name = camera_info.get("cameraName") or camera_info.get("camera_name")
-        if camera_name:
+        if camera_name and camera_name.lower() != "default":
             return camera_name
 
         # 降级：提取变量