Arithmetic Circuit for Golf Impact Parameter Calculation
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Solution Overview
Problem
Existing arithmetic circuits for measuring parameters at the time of impact between an object and a measuring object, such as in golf swing analysis, are expensive and not cost-effectively accessible for widespread use.
Innovation Solution
An arithmetic circuit and program that acquire and process X-axis bending, Y-axis bending, and twisting signals from sensors on a stick-like object, like a golf club, to calculate parameters like impact time and object states using matrix multiplication and machine learning models, providing affordable alternatives to expensive systems like TrackMan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If expensive measurement systems like TrackMan are used, then measurement precision is improved, but device cost increases
Solution Approach 1:
The patent replaces expensive, complex measurement systems with inexpensive accelerometers that can be mass-produced at low cost. The system uses multiple low-cost sensors instead of a single expensive system, achieving comparable measurement precision through quantity and signal processing rather than individual sensor sophistication.
Solution Approach 2:
The patent substitutes complex mechanical/optical measurement systems with electronic accelerometers and digital signal processing. Instead of using sophisticated optical tracking or mechanical sensors, the system employs microelectromechanical accelerometers combined with matrix-based calculation algorithms to achieve accurate impact parameter measurement at a fraction of the cost.
2Measurement precision
If multiple sensors and complex calculations are used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent makes the accelerometer system multi-functional by using the same sensors to measure multiple impact parameters (impact time, impact position, club head velocity, ball launch conditions) through different calculation approaches. The matrix calculation system processes sensor data to derive various impact characteristics without requiring additional specialized sensors for each parameter.
Solution Approach 2:
The patent introduces matrix calculations as an intermediary processing layer between the simple accelerometer readings and the complex impact parameters. The matrix system acts as a mathematical mediator that transforms raw acceleration signals into meaningful impact measurements, handling the complexity in software rather than hardware.
Data Source
AI summary
An arithmetic circuit according to the present disclosure performs a signal value acquisition step of acquiring X-axis bending values, Y-axis bending values, and twisting values at respective one or more first times before an impact time identified in a time identification step and at respective one or more second times after the impact time; and a first calculation step of calculating one or more parameters indicating a state of an object to be measured at the impact time by multiplying a plurality of the X-axis bending values, a plurality of the Y-axis bending values, and a plurality of the twisting values acquired in the signal value acquisition step by a matrix.