diff --git a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
index bc3fc9f8..33cf045d 100644
--- a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
+++ b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
@@ -443,13 +443,15 @@ public class MicroPhotoService extends Service {
     private void registerHeartbeatTimer() {
 
         // 创建延迟意图
+        long triggerTime = System.currentTimeMillis() + mHeartbeatDuration;
         Intent alarmIntent = new Intent();
         alarmIntent.setAction(ACTION_HEARTBEAT);
         alarmIntent.putExtra("HeartbeatDuration", mHeartbeatDuration);
-        PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, alarmIntent, 0);
+        alarmIntent.putExtra("HeartbeatTime", triggerTime);
+        PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);
 
         AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
-        alarmManager.setExactAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime() + mHeartbeatDuration, pendingIntent);
+        alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, triggerTime, pendingIntent);
 
         // mNextHeartbeatTime = System.currentTimeMillis() + mHeartbeatDuration;
         // alarmManager.setExactAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime() + timeout, pendingIntent);