diff --git a/app_dashboard/src/main/res/xml/root_preferences.xml b/app_dashboard/src/main/res/xml/root_preferences.xml
index 32ee38e..87d2b29 100644
--- a/app_dashboard/src/main/res/xml/root_preferences.xml
+++ b/app_dashboard/src/main/res/xml/root_preferences.xml
@@ -24,14 +24,9 @@
             app:defaultValue="9600"
             app:useSimpleSummaryProvider="true"
             app:isPreferenceVisible="false"/>
-        <CheckBoxPreference
-            app:key="k_send_power_on_cmd"
-            app:title="APP 启动时重启电源插座"
-            app:summary="APP 启动时先关闭电源，5秒后再打开电源"
-            app:defaultValue="true" />
         <ListPreference
             app:key="k_power_control_mode"
-            app:title="电源开关方式"
+            app:title="电源插座定时开关"
             app:entries="@array/power_control_mode_entries"
             app:entryValues="@array/power_control_mode_values"
             app:defaultValue="1"
@@ -48,6 +43,11 @@
             app:defaultValue="20:30"
             app:summary="设置自动关电源的时间，格式：HH:mm"
             app:useSimpleSummaryProvider="true" />
+        <CheckBoxPreference
+            app:key="k_send_power_on_cmd"
+            app:title="APP 启动时重启电源插座"
+            app:summary="APP 启动时先关闭电源，5秒后再打开电源"
+            app:defaultValue="true" />
         <Preference
             app:key="k_clear_device"
             app:title="串口设备路径"
diff --git a/readme.md b/readme.md
index 4a6f96a..f899a1e 100644
--- a/readme.md
+++ b/readme.md
@@ -34,8 +34,6 @@
 
 ```json
 {
-  "DevicePath": "/dev/ttyS2",
-  "Baud": 9600,
   "Commands": [
     {
       "Time": "08:00",