diff --git a/VideoProsessing/src/main.cpp b/VideoProsessing/src/main.cpp
index d049c8e..a7ca26c 100644
--- a/VideoProsessing/src/main.cpp
+++ b/VideoProsessing/src/main.cpp
@@ -21,7 +21,7 @@ Mat handleFrame;
 const string mqtt_url = "tcp://192.168.12.1:1883";
 const string clientId = "video_subData";
 const string Topic = "/video/PersonData";
-const int Qos = 1;
+const int Qos = 0;
 mqtt::async_client client(mqtt_url, clientId);
 
 // 函数声明