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, frame 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