基于STM32单片机的网球自动发球机球体旋转飞行轨迹研究

Research on sphere rotating flight trajectory of tennis automatic ball machine based on STM32 microcontroller

传统方法对网球自动发球机球体旋转飞行轨迹控制效果差,为了解决这一问题,在传统研究基础上研究了一种新的方法,通过对网球在被发射前和旋转飞行在空中的受力情况进行了研究,得出了力是影响网球飞行轨迹的重要因素的结论,并比较了2种自动发射机在空中形成的不同飞行轨迹。发射了1000个网球并对过网数、有效球数和落地点误差进行记录并分析。实验结果表明,相较于传统自动发球机,STM32单片机的球体旋转飞行轨迹相比较控制效果更好,所发出的网球过网数更高、有效球数更多、落地点的平均误差更小,说明其性能更强。

In order to solve the problem that the traditional method has poor control effed on the ball rotation flight path of temis automatic serrer,a new method is studied based on the traditional research,through the study of the force on the tennis ball before it is launched and in the air when it is rotating,it is concluded that the force is an important factor affecting the tennis ball flight path,and the different flight paths formed by the two automatic transmitters in the air are compared.A total of 1000 tennis balls were launched,and the errors of net passing,effective balls and landing points were recorded and analyzed.The experimental results show that compared with the traditional automatic server,the ball rotation flight trajectory of STM32 single-chip microcomputer has better control effect,the tennis ball has higher number of passing net,more effective balls,and the average error of landing point is smaller,which shows that its performance is stronger.