压电传感器在射击辅助训练系统中的应用  

Application of piezoelectric sensor in assistant shooting training system

作　　者：苏圆 庄建军[1] 李雅婷[1] 余飒爽 杨诗宇 武秀峰 邹鸣[2] SU Yuan;ZHUANG Jianjun;LI Yating;YU Sashuang;YANG Shiyu;WU Xiufeng;ZOU Ming(Nanjing University,Nanjing 210023,China;Nanjing Forestry Police College,Nanjing 210023,China)

机构地区：[1]南京大学,江苏南京210023 [2]南京森林警察学院,江苏南京210023

出　　处：《现代电子技术》2020年第6期1-4,8,共5页Modern Electronics Technique

基　　金：国家重点研发计划项目(2016YFB0400903);教育部产学合作协同育人项目(201702007014)。

摘　　要：为准确掌握运动员训练时手部的动作情况,研究和设计一种射击辅助训练系统。该系统以聚偏二氟乙烯(PVDF)压电薄膜为传感器,STM32F103C8T6为控制核心,配以放大电路、滤波电路和无线传输模块,用以捕捉射击运动员击发瞬间手部施加在枪体接触面的压力波形,并将该信号通过蓝牙传输至手机端APP,在APP中完成压力波形的显示、存储、计算和分析。经模拟测试,该系统可以实时记录击发瞬间手部相关位置施加的压力波形,为教练员实施精确的个性化指导提供客观依据。An assistant shooting training system is studied and designed to accurately master the athletes’hand movements during training.In the system,the polyvinylidene fluoride(PVDF)piezoelectric film is taken as sensor,STM32F103C8T6 is used as the control core,to which the amplifier circuit,filter circuit and wireless transmission module are equipped,so as to capture the pressure waveform of the shooter’s hand imposing on his gun’s contact surface at the moment of shooting.The pressure waveform signal is transmitted to mobile App through Bluetooth,and the display,storage,calculation and analysis of the pressure waveform are completed in the App.The simulation testing results show that the system can record the pressure waveform generated at the relevant position of the hand at the moment of firing in real time,and provide objective basis for coaches to implement the precise personalized guidance.

关 键 词：射击训练 PVDF压电薄膜 系统设计 蓝牙传输 模拟测试 精确指导 

分 类 号：TN384-34[电子电信—物理电子学] TP391.4[自动化与计算机技术—计算机应用技术]