通过计算机的串口与单片机进行串口通讯,用以监测运行于计算机上的数字视频录像系统是否正常,若不正常则单片机重新起动计算机。This article introduces a way to solve the problem of digital video recoder not working normally .DVR' working-condition is detected by a wathcer using serial communication program between computer and microcontrollers . If DVR can' t work,watcher resets the computer at once
