基于AT89C51单片机，通过按键输入检测输出控制步进电机使AGV小车顶部丝杆上下运动。-Based on AT89C51, the key input is detected by the output control stepper motor to make the car AGV top screw up and down.

多个AGV小车并行运动，分别可以到达预定的目标，界面是自己画的简单地图，运动控制框架可以参考，直接运行看效果(Multiple AGV cars move in parallel to achieve their intended goals. The interface is a simple drawing drawn by themselves. The motion control framework can be used as a reference for direct opera