本文研究的是设计一个控制系统，用固定在云台上的摄像头来跟踪运动目标。具体包括硬件设计和软件编程。利用计算机、摄像机、图像采集卡、步进电机驱动器和步进电机等硬件设备设计一套视觉自动跟踪系统，利用VC++实现上位机串口通信程序；利用KeilC51实现下位机的控制功能-This paper is to design a control system, using a fixed camera in the head Yuntai tracking moving targets. Including hardware design and software programming. The use of computers, cameras, fr a me grabbers, stepper motor and stepper motor drives and other hardware to design a visual tracking system, using VC++ realization of PC serial communication procedures　use KeilC51 lower the achievement of the control machine