Tennis racket trace reconstruction system based on sensors and reconstruction method thereof

Abstract

The invention discloses a tennis racket trace reconstruction system based on sensors and a reconstruction method thereof. The system comprises three triaxial sensors, at least one vibration sensor, aMCU single-chip microcomputer and a bluetooth module; wherein the three triaxial sensors are assembled at the bottom of a ball handle, and the three triaxial sensors are distributed on the three vertices of isosceles triangle after isosceles scaling, the isosceles triangle is a high isosceles triangle with the balance point of the tennis racket extending twice as long as the direction of the racket. The triangle is scaled down or enlarged to the same size as the bottom of the racket; the vibration sensor is assembled at the bottom of the racket handle; the bluetooth module outputs the data stored in MCU through bluetooth to the receiving terminal; the bluetooth module outputs the data stored in MCU to the receiving terminal through bluetooth; the data input to the bluetooth receiving terminal reconstructs the racket trace through 3D, and inputs the data into the big database to analyze whether the swing movement is correct, and whether there are security risks.

Description

Technical field: [0001] The invention relates to a sensor-based tennis racket movement trajectory reconstruction system and a reconstruction method using the system, belonging to the technical field of social network. Background technique: [0002] With the trend of globalization, many foreign sports have become popular in China, and tennis is one of the more prominent sports. The exercise value of tennis is very high. It is not only a kind of recreation, a means of improving health, but also a kind of artistic pursuit and enjoyment. Playing tennis can cultivate people's quick action, accurate judgment, quick response and can improve qualities such as speed, strength, endurance, and sensitivity. When hitting the ball with a tennis racket in hand, when the racket hits the ball, it is necessary to swing the racket at any time according to the specific situation of the incoming ball. Therefore, it has a good influence on the adjustment of muscle tension and muscle feeling, and...

AI Technical Summary

Problems solved by technology

[0008] Weaknesses of the prior art: the method of image processing is not efficient, requires a professional team to process the image, the required cost is huge, and also requires a separate venue, this method is only suitable for professional tennis training, It is not suitable for the vast number of amateurs; and the wearable sensors covering the whole body, although the final results will be displayed accurately, but it is necessary to install sensors on key parts of the whole body, which is necessary for normal running and swinging. It has a great influence, so the displayed result is not necessarily the normal hitting posture of the testee, which affects the judgment; the smart bracelet has the function of racket trajectory measurement, but it can only measure the trajectory data of the racket head, and cannot simulate The flipping action of the entire racket; the sensor equipped at the bottom of the racket handle can measure the speed of the ball, movement time, number of swings, etc., but cannot accurately measure the trajectory of the racket

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