diff --git a/gpsrelaysentinel/src/main/AndroidManifest.xml b/gpsrelaysentinel/src/main/AndroidManifest.xml
index 7e89b56..1d557fb 100644
--- a/gpsrelaysentinel/src/main/AndroidManifest.xml
+++ b/gpsrelaysentinel/src/main/AndroidManifest.xml
@@ -3,10 +3,17 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="cc.winboll.studio.gpsrelaysentinel">
 
-    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
-    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
-    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
-    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <!-- 只能在前台获取精确的位置信息 -->
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+
+    <!-- 只有在前台运行时才能获取大致位置信息 -->
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
+
+    <!-- 在后台使用位置信息 -->
+    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION"/>
+
+    <!-- 运行前台服务 -->
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
 
     <application
         android:allowBackup="true"
@@ -37,10 +44,17 @@
 
         <activity android:name=".GlobalApplication$CrashActivity"/>
 
-        <service android:name=".MainService"
+        <service
+            android:name=".MainService"
             android:enabled="true"
-            android:exported="false" />
+            android:exported="false"/>
+
+        <service android:name=".GpsReceiverChildService1"/>
+
+        <service android:name=".GpsReceiverChildService2"/>
+
+        <service android:name=".GpsReceiverChildService3"/>
 
     </application>
 
-</manifest>
+</manifest>
\ No newline at end of file