可实现视频设备（云台和摄像头）的控制，在监控系统工程中有着广泛的应用。通过串口或并口控制云台8个方向转动、镜头与光圈的6种调节，辅助设备（雨刮、照明等）的开关。-video equipment can be realized (and camera platforms) control, the control system has a wide range of applications. Through serial or parallel port to control the direc