说明：  51单片机通过8253控制步进电机转动，步进电机上面有超声测距模块，该模块通过串口将距离信息传给单片机处理，从而实现了一个简单的平面雷达。同时，单片机处理步进电机的角度信息，再控制载有摄像头的舵机转到雷达扫描到物体的方位，以实现摄像头跟踪目标物体的结果。
(51 stepper motor microcontroller control by 8253 rotation of stepper motor above a ultrasonic ranging module through the serial port will handle distance information to the microcontroller, which implements a simple plane radar. Meanwhile, the SCM handle stepper motor angle information, and then control the steering gear contains a camera to object to the radar scan direction, in order to achieve the object camera tracking results.)