public class Alarm_Receiver extends BroadcastReceiver {
    private boolean is_local_service_running;
    private boolean is_remote_service_running;
    private Context context;

    @Override
    public void onReceive(Context context, Intent intent) {
        this.context = context;
        try {
            do_something();
        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        }
        // 设置下一次唤醒
        schedule_alarm(context);
    }

    private void do_something() throws ClassNotFoundException {
　　　　...
    }
}

Alarm_Scheduler.schedule_alarm(this);