Wireless Swing Analyzer with Address-Based Target Line Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional swing analysis devices using image capture are limited in detail and portability, and existing motion sensor-based systems fail to account for human golfer inconsistencies and sensor errors, leading to inaccurate swing path analysis.
Innovation Solution
A wireless swing analysis system that includes a motion sensor with an accelerometer and angular velocity sensor attached to sports equipment, which wirelessly transmits data to a terminal device for determining the address position, calculating a target line, and characterizing the swing path, while correcting for sensor errors and ignoring extraneous movements like waggles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image-based swing analysis devices are used, then analysis capability is provided, but device size becomes large and portability is reduced
Solution Approach 1:
The patent replaces the mechanical/optical image capture system with a wireless motion sensor system that uses accelerometers and gyroscopes to detect swing movements. This substitution eliminates the need for bulky camera equipment while maintaining swing analysis capability through inertial measurement data processing.
Solution Approach 2:
The invention extracts only the essential motion detection functionality from the complete swing analysis system, using compact motion sensors that can be attached to clubs or equipment. This extraction removes unnecessary components (cameras, image processing units) while retaining core swing analysis capability through sensor data.
2Productivity
If motion sensor-based swing analysis is performed without error correction, then analysis speed is improved, but measurement precision deteriorates due to sensor errors
Solution Approach 1:
The system continuously monitors sensor data and uses feedback mechanisms to detect and correct errors in real-time. The analysis unit processes motion sensor outputs and adjusts measurements based on detected anomalies, ensuring accurate swing path characterization despite sensor imperfections.
Solution Approach 2:
The system performs preliminary calibration and error characterization before actual swing analysis. By pre-establishing reference data and correction parameters, the system can quickly compensate for sensor errors during actual use without significantly impacting analysis speed.
3Stability of the object's composition
If target line is determined using fixed orthogonal direction to club face, then analysis consistency is improved, but adaptability deteriorates for human golfers with varying postures
Solution Approach 1:
The patent transitions from a static, fixed target line determination method to a dynamic approach that adapts to each golfer's actual address posture. The system determines the target line based on the specific motion characteristics and orientation detected during each golfer's address position, making the analysis adaptable to individual variations while maintaining consistency through standardized processing algorithms.
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
Provides accurate and portable swing analysis by accounting for human inconsistencies and sensor errors, enabling precise characterization of swing paths and improving analysis accuracy.
Implementation Method 1
a sensor datum of the plurality of sensor data comprises information representing acceleration of the equipment-mounted motion sensor
Implementation Method 2
the motion sensor comprises an accelerometer and an angular velocity sensor
Data Source
AI summary
A swing analyzer is disclosed. The swing analyzer may be used to analyze the swing an object such as a golf club. The swing analyzer accounts for individual differences between users and/or sensors to improve performance. The swing analyzer includes a motion sensor that is attachable to the object. The motion sensor communicates wirelessly with a terminal device. The terminal device includes a swing analysis unit for performing swing analysis based on sensor data output from the motion sensor. The swing analyzer determines a target line based on position of the motion sensor while a user is at the address posture before a swing. The target line is used as a reference to provide swing analysis.