diff --git a/conf/device/device.conf b/conf/device/device.conf
index 02f21b1..9ca38bc 100644
--- a/conf/device/device.conf
+++ b/conf/device/device.conf
@@ -5,7 +5,7 @@
 subscribe_topic=lihai_lot_walnutpi_dev_1
 # 发布消息的主题
 publish_topic=camera_1
-username=lihai_lot_land_1
+username=demo
 password=123456
 ####################################
 # 设备2-32G
@@ -23,7 +23,7 @@ password=123456
 subscribe_topic=lihai_lot_walnutpi_dev_3
 # 发布消息的主题
 publish_topic=camera_3
-username=lihai_lot_land_1
+username=demo
 password=123456
 ####################################
 # 设备4-64G
@@ -32,7 +32,7 @@ password=123456
 subscribe_topic=lihai_lot_walnutpi_dev_4
 # 发布消息的主题
 publish_topic=camera_4
-username=lihai_lot_land_1
+username=demo
 password=123456
 ####################################
 # 设备5-64G
@@ -41,7 +41,7 @@ password=123456
 subscribe_topic=lihai_lot_walnutpi_dev_5
 # 发布消息的主题
 publish_topic=camera_5
-username=lihai_lot_land_1
+username=demo
 password=123456
 ####################################
 # 设备6-64G
@@ -50,5 +50,5 @@ password=123456
 subscribe_topic=lihai_lot_walnutpi_dev_6
 # 发布消息的主题
 publish_topic=camera_6
-username=lihai_lot_land_1
+username=demo
 password=123456
\ No newline at end of file