Tennis Racket Sensor System for Real-Time Motor Skill Feedback
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Solution Overview
Problem
Athletes, particularly in racket sports like tennis, face challenges in consistently improving their motor skills due to subjective and inconsistent corrective feedback from coaches, which can lead to perpetuation of incorrect movements, especially during stress or fatigue, as they progress through cognitive, associative, and autonomous stages of motor learning.
Innovation Solution
A device system installed on a racket or worn by a player that measures physical parameters and provides real-time audible, visual, and haptic coaching prompts to improve motor skills by revisiting cognitive and associative stages, using sensors to detect events and transmit messages for immediate feedback, simulating opponent reactions, and integrating with ball machines for realistic practice.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If athletes rely on coaches for corrective feedback, then athletes can receive guidance on motor skills, but the feedback is subjective and inconsistent leading to perpetuation of incorrect movements
Solution Approach 1:
The patent implements automated feedback systems using sensors to detect racket movements, ball contact points, and swing mechanics. The system provides objective, consistent feedback through displays and audio cues that immediately correct incorrect movements without relying on subjective coach judgment. This resolves the contradiction by replacing inconsistent human feedback with reliable automated measurement and correction systems.
Solution Approach 2:
The patent replaces the mechanical system of human coach observation and verbal correction with an automated electronic system comprising sensors, processors, and display devices. This substitution eliminates the subjectivity and inconsistency inherent in human-based feedback while maintaining the ability to guide athletes through motor skill acquisition stages.
2Productivity
If athletes progress to autonomous stage of motor learning, then cognitive demand is reduced allowing automatic responses, but incorrect movements are perpetuated and athletes revert to old techniques under stress
Solution Approach 1:
The system continuously monitors racket movements and ball contact parameters during practice and provides real-time feedback to reinforce correct techniques. This ongoing feedback loop ensures that even at the autonomous stage, athletes maintain correct motor patterns and do not revert to incorrect techniques when stressed or fatigued, resolving the contradiction between automaticity and technique consistency.
Solution Approach 2:
The system provides preliminary feedback and correction during practice sessions before competitions occur. By reinforcing correct techniques during controlled practice environments with immediate feedback, the system prepares athletes to maintain proper motor patterns during high-stress competition situations, preventing reversion to old incorrect techniques.
3Manufacturing precision
If coaches provide corrective feedback, then athletes can improve motor skills, but feedback is not immediate and may not be provided consistently under all conditions
Solution Approach 1:
The patent implements immediate feedback systems where sensors detect movements and the system provides instant correction cues through displays and audio. This eliminates the time delay inherent in traditional coach feedback, providing precise, immediate correction that allows athletes to adjust their motor skills in real-time during practice sessions.
Solution Approach 2:
The system provides continuous feedback throughout the entire practice session without interruption, maintaining constant monitoring and correction guidance. This continuous feedback loop ensures that athletes receive precise correction immediately after each movement, maximizing the effectiveness of motor skill acquisition without the time losses associated with traditional coaching methods.
Data Source
AI summary
Embodiments of the present invention are directed to devices, systems, and methods for measuring values obtained from one or more sensors installed on a player's tennis racket and/or worn on the player's body, and using those values to calculate various parameters, such as the physical position and motion of the tennis racket. Embodiments may translate the parameters and derive one or more occurrences corresponding to phases of a tennis point or drill and then generate real-time audible, visual, and/or haptic coaching prompts and other related commands and signals, for the purpose of improving a player's motor skills. Embodiments may also send and receive messages to/from other embodiments, thereby permitting a player to interact with other players, coaches, or devices, such as ball machines and cameras.