diff --git a/data_upload.py b/data_upload.py
index f9ed9d0..9f526ee 100644
--- a/data_upload.py
+++ b/data_upload.py
@@ -1,4 +1,4 @@
-import json
+
 import time
 
 import paho.mqtt.client as mqtt
@@ -25,7 +25,7 @@ class DataUploadClient:
     def on_connect(self, client, userdata, flags, rc):
         global times
         times = 6
-        self.client.publish(info_topic, payload=json.dumps(subscribe_topic + ':连接成功，执行数据推送和本地存储'), qos=0)
+        self.client.publish(info_topic, payload=publish_payload(200, subscribe_topic + ':连接成功，执行数据推送和本地存储'), 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):
diff --git a/tool.py b/tool.py
index 99916d9..fc00d5e 100755
--- a/tool.py
+++ b/tool.py
@@ -10,7 +10,7 @@ from config import mp4_path, post_record_list_url, post_record_url, info_topic
 # 统一返回
 def publish_payload(code, msg):
     return json.dumps({
-        "code": 200,
+        "code": code,
         "msg": msg
     }, ensure_ascii=False)
 
@@ -32,7 +32,7 @@ def push_stream(client):
                          stderr=subprocess.PIPE)
     out, err = p.communicate()
     output = out.decode('utf-8').strip()
-    client.publish(info_topic, payload=publish_payload(200, json.dumps(output, ensure_ascii=False)), qos=0)
+    client.publish(info_topic, payload=publish_payload(200, output), qos=0)
 
 
 def close_stream(client):
@@ -42,7 +42,7 @@ def close_stream(client):
                          stderr=subprocess.PIPE)
     out, err = p.communicate()
     output = out.decode('utf-8').strip()
-    client.publish(info_topic, payload=publish_payload(code=200, msg=json.dumps(output, ensure_ascii=False)), qos=0)
+    client.publish(info_topic, payload=publish_payload(code=200, msg=output), qos=0)
 
 
 def exec_sh(msg, client):
@@ -62,7 +62,7 @@ def exec_sh(msg, client):
     p = subprocess.Popen([cmd], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
     out, err = p.communicate()
     output = out.decode('utf-8').strip()
-    client.publish(info_topic, payload=publish_payload(code=200, msg=json.dumps(output, ensure_ascii=False)), qos=0)
+    client.publish(info_topic, payload=publish_payload(code=200, msg=output), qos=0)
 
 
 def get_status(client):
@@ -72,7 +72,7 @@ def get_status(client):
                          stderr=subprocess.PIPE)
     out, err = p.communicate()
     output = out.decode('utf-8').strip()
-    client.publish(info_topic, payload=publish_payload(code=200, msg=json.dumps(output, ensure_ascii=False)), qos=0)
+    client.publish(info_topic, payload=publish_payload(code=200, msg=output), qos=0)
 
 
 def update(client):
@@ -82,7 +82,7 @@ def update(client):
                          stderr=subprocess.PIPE)
     out, err = p.communicate()
     output = out.decode('utf-8').strip()
-    client.publish(info_topic, payload=publish_payload(code=200, msg=json.dumps(output, ensure_ascii=False)),
+    client.publish(info_topic, payload=publish_payload(code=200, msg=output),
                    qos=0)