Tennis Racket Grip Pressure Signal Analysis
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Solution Overview
Problem
Tennis players face challenges in correlating their performance errors and advantages during play to gain insights into their strengths and weaknesses without disrupting their focus on the game.
Innovation Solution
A system comprising sensors on a tennis racket handle that generate pressure signals, which are analyzed by a processor to compare against pre-established templates, providing qualitative feedback on grip characteristics through audible and visual outputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are integrated into the racket handle to provide real-time feedback, then measurement precision of grip characteristics is improved, but device complexity increases
Solution Approach 1:
The pressure mat and sensors are integrated directly into the racket handle structure, merging the feedback device with the sports equipment. This allows the racket to simultaneously serve as both the sports tool and the sensing device, providing grip characteristic measurement without requiring a separate complex system.
Solution Approach 2:
A processing unit acts as an intermediary between the sensors and the player, receiving raw signal data from the pressure mat and converting it into meaningful grip characteristic feedback. This intermediary layer simplifies the overall system architecture by centralizing the processing function rather than requiring complex distributed processing.
2Productivity
If real-time feedback is provided during play, then productivity of performance improvement is improved, but loss of time for analysis increases
Solution Approach 1:
The system provides immediate feedback to the player during gameplay by comparing real-time pressure signals against stored template data. This instantaneous feedback loop allows players to adjust their grip in real-time without waiting for post-game analysis, significantly improving the productivity of performance improvement while eliminating time loss.
Solution Approach 2:
Multiple grip templates are pre-established and stored in the processing unit before actual play occurs. This preliminary preparation of reference data allows for immediate comparison and feedback during gameplay, eliminating the need for time-consuming real-time analysis and enabling instant performance adjustment.
3Measurement precision
If multiple sensors are used to capture comprehensive grip data, then measurement precision is improved, but ease of operation decreases
Solution Approach 1:
The system automatically captures, processes, and analyzes grip data without requiring any active participation or adjustment from the player. The sensors operate passively during normal gameplay, and the processing unit automatically compares signals against templates and generates feedback, making the complex multi-sensor system transparent to the user and maintaining ease of operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables players to receive real-time, non-disruptive feedback on their grip and performance, allowing for immediate improvement and fatigue detection during play.
Implementation Method 1
pressure distribution is obtained between the hand(s) of a player and the handle of a racket such as a tennis racket
Data Source
AI summary
Methods and apparatus are disclosed for comparing signals from pressure sensors under the grip of a tennis racket to digital templates to gain insight into the player's grip, e.g., during ball striking moments.