说明：  自己的小作,能简化繁琐的通讯帧格式的检测工作,在常量数组 PROTOCOL_ARRAY 中定义一个或多个通讯帧格式,能同时将多个有效帧检测出来,采样队列的方式,高效.
(for their small, can simplify the cumbersome communications frame format detection, the constants defined array PROTOCOL_ARRAY one or more communications frame format. while many can be effectively detected frame, sampling cohort approach and efficient.)