Racket Dampener Integrating Sensors for Swing Analysis
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Solution Overview
Problem
Existing racket dampener devices lack multi-axis accelerometers, gyroscopes, onboard memory, and wireless transceivers to effectively measure and analyze parameters like hit velocity and shot type during tennis play, limiting their ability to provide comprehensive player performance data.
Innovation Solution
A racket dampener device equipped with a multi-axis accelerometer, MEMS gyroscope, microcontroller, memory chip, and wireless transceiver to detect and transmit data on hit velocity and shot type to a smartphone or computer app, enabling detailed player performance analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing racket dampener devices are used, then the device structure remains simple, but the ability to measure and analyze player performance metrics is insufficient
Solution Approach 1:
The patent combines multiple sensor types (accelerometer, gyroscope, vibration sensor) with processing components (microcontroller, memory) and communication modules (transceiver) into a single integrated dampener device, enabling comprehensive performance measurement while maintaining a unified compact structure
Solution Approach 2:
The dampener device performs multiple functions simultaneously: vibration damping, acceleration measurement, rotational measurement, ball strike detection, data storage, and wireless communication, making it a multi-functional performance analysis system rather than a single-purpose component
2Loss of information
If multiple sensors and processing components are added to the dampener device, then player performance measurement capability is improved, but the device complexity increases
Solution Approach 1:
The patent implements a hierarchical data processing architecture where the vibration sensor detects ball strikes, the accelerometer and gyroscope measure motion parameters, the microcontroller processes this data, and the memory chip stores the results, with each component nested within the overall system structure
Solution Approach 2:
The microcontroller serves as an intermediary that receives raw data from multiple sensors, processes and correlates this information to determine performance metrics, and prepares the processed data for wireless transmission, thereby managing the complexity between sensors and communication modules
3Ease of operation
If wireless communication capability is added to the dampener device, then real-time data transmission is enabled, but the device requires additional power management components
Solution Approach 1:
The battery management system operates autonomously, with the microcontroller monitoring battery status and automatically managing power distribution to different components, enabling the device to self-regulate its power consumption without external intervention
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 accurate measurement and analysis of player performance metrics, such as hit velocity and shot type, enhancing player training and analysis capabilities by providing real-time data and insights.
Implementation Method 1
An accelerometer is coupled within the dampener body
Implementation Method 2
A vibration sensor is within the dampener body to detect when a ball is struck
Implementation Method 3
The dampener body absorbs vibration from the plurality of strings
Data Source
AI summary
A racket dampener swing sensor apparatus to obtain measurements of parameters relative to the player's performance while reducing vibration includes a dampener body having a body front side, a body back side, and a body perimeter. The body perimeter has a string channel to selectively engage a plurality of strings of a tennis racket. The dampener body absorbs vibration from the plurality of strings. An accelerometer and a microcontroller with memory are coupled within the dampener body to measure hit velocity for each shot type (forehand, backhand, serve, topspin, slice, or flat). A vibration sensor is provided to detect when a ball is struck. A transceiver is coupled within the dampener body to wirelessly communicate with an app on a smartphone or computer. A battery is coupled within the dampener body and a charge port is in operational communication with the battery.