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Football free kick track simulation generation method and system

Pending Publication Date: 2021-08-20
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the impact of the complex football field environment and the design of the human wall on free kicks has not been considered in previous studies

Method used

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  • Football free kick track simulation generation method and system
  • Football free kick track simulation generation method and system
  • Football free kick track simulation generation method and system

Examples

Experimental program
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Embodiment Construction

[0051] Such as figure 1 As shown, the football free kick trajectory simulation generation method of the present embodiment includes:

[0052] 1) Determine the football model, the coordinates of the hitting point A and the kicking force F;

[0053] 2) Determine the initial velocity and initial rotational angular velocity of the football based on the coordinates of the hitting point A and the kicking force F;

[0054] 3) Based on the initial velocity and initial rotation angular velocity of the football, combined with the gravity, air resistance and Mag to determine the rotational angular velocity and acceleration equation of the football during flight, and simplify the collision process to mirror reflection during the movement of the football , and finally obtain the free kick trajectory of football.

[0055] Whether it is at the moment of kicking the ball or during the flight, the type of football will have a great impact on the force and trajectory of the football. If you w...

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Abstract

The invention discloses a football free kick track simulation generation method and system. The method comprises the following steps: determining a football model, coordinates of a ball hitting point A and a kicking acting force F; determining the initial speed and the initial rotation angular speed of the football based on the coordinates of the hitting point A and the kicking acting force F; and on the basis of the initial speed and the initial rotation angular speed of the football, determining the rotation angular speed and an acceleration equation of the football during flight in combination with the gravity borne by the football, the air resistance and the Magnus, simplifying the collision process into mirror reflection in the movement process of the football, and finally obtaining the free kick movement track of the football. The method comprehensively considers the football model, the ball hitting point A, the ball kicking acting force F, the gravity, the air resistance, the Magnus effort and the collision process, has the advantages of being high in accuracy of the generated result and high in restoration degree, can be used for analyzing the influence of different force magnitudes and angles on the free kicking, and assists the training of players.

Description

technical field [0001] The invention relates to motion simulation technology, in particular to a simulation generation method and system for football free kick trajectory. Background technique [0002] A free kick is a method of restarting play after a foul has been committed in football (or handball). There are two types of free kicks: direct free kick (the kicker can shoot the ball directly into the goal of the offending team to score) and indirect free kick (the kicker cannot score directly, the ball must be kicked or touched by other players before entering the goal) . Since Pele kicked the first "beautiful arc" in the London World Cup in 1966, free kicks have become the basic skills and specialties of more and more big-name stars. Since Pele kicked the first "beautiful arc" in the London World Cup in 1966, free kicks have become the basic skills and specialties of more and more big-name stars. The god-level free kick kicked by Faiz Suboli in the Malaysian football fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/28A63B69/00G06F17/15G06F119/14
CPCG06F30/28A63B69/002G06F17/15G06F2119/14
Inventor 陈彬朱正秋季雅泰赵勇陈海亮谢旭焦鹏鞠儒生张琪王鹏
Owner NAT UNIV OF DEFENSE TECH
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