Shooting auxiliary training system based on PVDF film pressure sensors

A film pressure and training system technology, applied in the field of auxiliary training systems, can solve the problems of strong subjectivity of training methods, lack of training systems and training methods, and difficulty in replicating large-scale promotion. The effect of installation

Inactive Publication Date: 2018-02-23
NANJING UNIV
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AI Technical Summary

Problems solved by technology

However, at the current stage, the learning and training of shooters and the guidance and teaching of coaches are basically based on past experience. It is difficult for coaches to observe the force applied to the key parts of the hand when the athlete is firing with the naked eye and correct the athlete's technical movements in time. Therefore, there is a lack of scientific and effective training systems and training methods, and the training methods are highly subjective and difficult to replicate and promote on a large scale.

Method used

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  • Shooting auxiliary training system based on PVDF film pressure sensors
  • Shooting auxiliary training system based on PVDF film pressure sensors
  • Shooting auxiliary training system based on PVDF film pressure sensors

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Embodiment Construction

[0016] The invention discloses a shooting training auxiliary system based on a multi-channel PVDF film pressure sensor. The system is composed of three parts: an athlete terminal, a coach smart phone terminal App system and a cloud database system. The athlete's terminal collects pressure signals from multiple PVDF film piezoelectric sensors, passes through the first-stage charge amplifier circuit and the second-stage voltage amplifier circuit, and then passes through a 30Hz low-pass filter circuit and a 50Hz trap circuit to obtain simulated pressure with a high signal-to-noise ratio Signal, the analog pressure signal is converted and calculated to obtain the pressure data signal, and stored.

[0017] The athlete's terminal stores pressure data for a certain period of time, and sends the data to the coach's smartphone terminal through the wireless module at regular intervals, and the mobile app saves the pressure data in a data pool for subsequent analysis and call. In additio...

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Abstract

The invention relates to a shooting auxiliary training system based on PVDF film pressure sensors, used for carrying out real-time detection as well as recording and analysis on the pressure change offorce generating positions of the hand during shooting of a shooting athlete. The shooting auxiliary training system based on the PVDF film pressure sensors comprises an athlete terminal, an intelligent mobile phone terminal and a cloud database system, wherein the athlete terminal is integrated with a power module, the multiple paths of PVDF film pressure sensors, an amplifying and filtering circuit, an analog-digital conversion module, a processor unit and a wireless transmission module; the multiple paths of PVDF film pressure sensors, the amplifying and filtering circuit and the analog-digital conversion module are responsible for collecting and processing real-time pressure signals of the key force generating positions during shooting of the athlete; the processor unit is used for analyzing, processing and storing pressure data with certain duration; the wireless transmission module is used for transmitting data in a storage unit to the intelligent mobile phone terminal; the multiple paths of PVDF film pressure sensors are laid on a plurality of stress positions where a trigger and a gun handle are in contact with the hand of the athlete, so that multiple paths of pressure signals can be collected.

Description

technical field [0001] The invention relates to an auxiliary training system based on a PVDF film pressure sensor and used for real-time detection, recording and analysis of pressure changes at key positions of a shooter's hand when shooting. Background technique [0002] Shooting is a fine sport. Over the years, in various major international competitions, Chinese shooting athletes have achieved remarkable results. Shooting is our country's dominant sport. Experience shows that any external factors, such as the force exerted by the gunman on various parts of the gun body, the shaking range of the gun body and wrist, the competition venue and the athlete's psychology, etc., will affect the training effect and competition performance of athletes. However, at the current stage, the learning and training of shooters and the guidance and teaching of coaches are basically based on past experience. It is difficult for coaches to observe the force applied to the key parts of the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B19/00G01L1/04
CPCG09B19/00G01L1/04
Inventor 庄建军苏圆张光延严雨阳黄骄龙张通晓李雅婷武秀峰杨诗宇余飒爽
Owner NANJING UNIV
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