所设计的跑步机系统具有速度设定、速度增减、控制电机旋转方向以及液晶屏显示的功能。即可以通过按键输入设定跑步机的转速，或者通过速度增减按键小范围控制转速变化，以及正反转按键控制电机转向。在跑步机运转过程中液晶显示屏可以显示设定速度、实际速度、电机旋转方向以及运动时间。-The design of the running system has the function of speed setting, speed increasing and decreasing, controlling the direction of motor rotation and LCD display. That is, through the key input to set the speed of the treadmill, or by increasing the speed of a small range of keys to control speed changes, as well as the positive and negative buttons to control the motor steering. In the running process, the LCD can display the setting speed, the actual speed, the rotation direction of the motor and the movement time.