A Virtual Training System Based on Computer Sensing and Football Kicking Dynamics Using Real- Time Wireless Feedback Presented by Alyssa Schaefbauer.

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Presentation transcript:

A Virtual Training System Based on Computer Sensing and Football Kicking Dynamics Using Real- Time Wireless Feedback Presented by Alyssa Schaefbauer

OutlineOutline   Motivation   System Design   Real Time Sensing and Data Collection   Trajectory Prediction   Realistic Visualization   Motivation   System Design   Real Time Sensing and Data Collection   Trajectory Prediction   Realistic Visualization

MotivationMotivation   Football games can often come down to a discrepancy of a few points that separate the winners from the losers.   The idea for this project was first sparked from watching a football team lose a very important game because their kicker failed at kicking a field goal.   This simulator was designed with the goal of helping a football kicker have the capability to train anywhere, anytime, and no matter the weather while receiving the same attention to detail he would from a team of coaches at a training camp.   Football games can often come down to a discrepancy of a few points that separate the winners from the losers.   The idea for this project was first sparked from watching a football team lose a very important game because their kicker failed at kicking a field goal.   This simulator was designed with the goal of helping a football kicker have the capability to train anywhere, anytime, and no matter the weather while receiving the same attention to detail he would from a team of coaches at a training camp.

Training Tools A superior kicker is set apart from the rest by their ability to be consistent and reliable. The training tools we have implemented insure this.   Quantitative feedback of the trajectory of the football for players to know if their kick was “good”.   A pressure sensing mat for a visual representation of the players’ footprint trail to inspect for consistency.   High speed cameras for replay and evaluation of body movements and kicker follow through   Provide football coaches with quantitative data to design player-specific training program for kickers in order to achieve the goal with more precision. A superior kicker is set apart from the rest by their ability to be consistent and reliable. The training tools we have implemented insure this.   Quantitative feedback of the trajectory of the football for players to know if their kick was “good”.   A pressure sensing mat for a visual representation of the players’ footprint trail to inspect for consistency.   High speed cameras for replay and evaluation of body movements and kicker follow through   Provide football coaches with quantitative data to design player-specific training program for kickers in order to achieve the goal with more precision.

System Design   Utilizing multi-iteration optimization tools in SolidWorks, parameters such as wall thickness and crossbeam length are optimized to reduce weight and provide optimum support for the wall mount frame.   The force sensor array consists of 56 FSR-406 force sensors covered by 6in x 6in plexiglass shields to increase the area coverage for each sensor. The total area of coverage is 4ft x 3.5 ft. in a grid of eight by seven sensors.   Utilizing multi-iteration optimization tools in SolidWorks, parameters such as wall thickness and crossbeam length are optimized to reduce weight and provide optimum support for the wall mount frame.   The force sensor array consists of 56 FSR-406 force sensors covered by 6in x 6in plexiglass shields to increase the area coverage for each sensor. The total area of coverage is 4ft x 3.5 ft. in a grid of eight by seven sensors.

Real Time Sensing and Data Collection   The data collected to accurately reconstruct the trajectory is initial velocity, imparting angles, and rotational velocity of the football.   The components used to capture all this data is accelerometer, gyroscope, force sensors, micro controllers, and touch screen input device.   The data collected to accurately reconstruct the trajectory is initial velocity, imparting angles, and rotational velocity of the football.   The components used to capture all this data is accelerometer, gyroscope, force sensors, micro controllers, and touch screen input device.

Trajectory Prediction   Trajectory equations were derived and built upon Newton’s Second Law of Motion.   Lift and drag forces on the football are considered and evaluated as the ball is rotating.   The current model of equations is based on characteristics of the Alamodome.   Trajectory equations were derived and built upon Newton’s Second Law of Motion.   Lift and drag forces on the football are considered and evaluated as the ball is rotating.   The current model of equations is based on characteristics of the Alamodome.

Realistic Visualization   Digitized Dallas Cowboys stadium, parameterizing the distance and angle of approach, and recreating gameplay sounds the kicker will feel immersed in a true game scenario.   Unity is being used as the interface for the simulation and a Runga-Kutta solver in Javascript is being used to run the equations and show an accurate representation of the players kick.   Digitized Dallas Cowboys stadium, parameterizing the distance and angle of approach, and recreating gameplay sounds the kicker will feel immersed in a true game scenario.   Unity is being used as the interface for the simulation and a Runga-Kutta solver in Javascript is being used to run the equations and show an accurate representation of the players kick.