基于加速度计阵列的乒乓球智能判分系统

Design of Table Tennis Intelligent Scoring System Based on Accelerometer Array

乒乓球比赛在国际比赛、体育教学、休闲健身等领域备受关注。针对乒乓球比赛中裁判员主观局限性导致的判分人为误差、球员训练效率与实时性差等问题,提出了一种基于MEMS加速度计阵列的乒乓球智能判分系统。为了精准检测桌面落球位置,采用ADXL335加速度传感器模块测量球-桌碰撞引起的桌面振动信息。通过优化加速度传感器阵列节点,开发多信号协同感知算法,实现球桌表面落球点的精确定位。此外,结合落球点坐标信息,开发了基于国际乒乓球比赛规则的智能判分和比分实时显示上位机模块。实验结果表明:所开发的乒乓球判分系统具有智能裁判、比分实时显示、落球点精准定位、坐标信息存储等功能,为乒乓球比赛精准智能裁判和球员数字化训练提供了一种实用的设计方案。

Table tennis has attracted much attention in the fields of international competitions,physical education,leisure and fitness.Aiming at the problems of human error,poor training efficiency and real-time performance of players caused by the subjective limitations of referees in table tennis matches,an intelligent table tennis scoring system based on MEMS accelerometer array is proposed.In order to ac-curately detect the ball drop position of the table top,ADXL335 acceleration sensor module is used to measure the table top vibration in-formation caused by the ball table collision.By optimizing the acceleration sensor array nodes,a multi signal cooperative sensing algorithm is developed to realize the precise positioning of the ball falling point on the surface of the table.In addition,combined with the coordinate information of the ball falling point,the upper computer module of intelligent scoring and score real-time display based on the international table tennis competition rules is developed.The experimental results show that the developed table tennis scoring system has the functions of intelligent referee,real-time display of score,accurate positioning of ball drop point,coordinate information storage and so on.It provides a practical design scheme for accurate intelligent referee of table tennis competition and digital training of players.