diff --git a/sensor_to_local.py b/sensor_to_local.py
index 7eff865..e95e3b3 100755
--- a/sensor_to_local.py
+++ b/sensor_to_local.py
@@ -183,7 +183,7 @@ def local():
                     'wind_speed': speedwind_data,
                     'wind_direction': winddirection_data,
                     'create_time': int(time.time()),
-                    'device_name': os.getenv('device_name')
+                    'device_name': device_name
                     }
             t = LOT_DATA(**data)
             add(t)
diff --git a/sensor_to_server.py b/sensor_to_server.py
index 0b6a6c7..22b3065 100755
--- a/sensor_to_server.py
+++ b/sensor_to_server.py
@@ -186,7 +186,7 @@ def t():
                     'wind_speed': speedwind_data,
                     'wind_direction': winddirection_data,
                     'create_time': int(time.time()),
-                    'device_name': os.getenv('device_name')
+                    'device_name': device_name
                     }
             t2 = LOT_DATA(**data)
             client.publish('demo', payload=json.dumps(data, ensure_ascii=False), qos=0)
@@ -214,7 +214,7 @@ def test():
                 'wind_speed': 1,
                 'wind_direction': 1,
                 'create_time': int(time.time()),
-                'device_name': os.getenv('device_name')
+                'device_name': device_name
                 }
         t2 = LOT_DATA(**data)
         client.publish('demo', payload=json.dumps(data, ensure_ascii=False), qos=0)