diff --git a/data_upload.py b/data_upload.py
index 19f7c52..4e73b63 100644
--- a/data_upload.py
+++ b/data_upload.py
@@ -24,9 +24,7 @@ class DataUploadClient:
         self.client.on_disconnect = self.on_disconnect
 
     def on_connect(self, client, userdata, flags, rc):
-        global times
-        times = 6
-        client.publish('success', payload='连接成功，执行数据推送和本地存储' + str(time.time()), qos=0)
+        self.client.publish('success', payload='连接成功，执行数据推送和本地存储' + str(time.time()), qos=0)
         subprocess.Popen(['/usr/bin/bash /home/pi/lot_manager/bash/start_data_upload.sh'], shell=True)
 
     def on_disconnect(self, client, userdata, rc):