Angular Velocity Exercise Analysis Device Hitting Position Deviation
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Solution Overview
Problem
Existing exercise analysis devices do not accurately indicate the deviation of a hitting position from a standard position on the hitting surface of an exercise instrument, such as a golf club, making it difficult for users to assess their technique.
Innovation Solution
An exercise analysis device that acquires angular velocity around the axis of a shaft portion, detects the impact of a hit, and calculates the distance of the hitting position from a standard position using relation information, allowing users to determine the deviation accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If rotation amount is measured to determine sweet spot hitting, then it is possible to determine whether hitting is within sweet spot, but it is not possible to indicate specifically how much hitting deviates from sweet spot
Solution Approach 1:
The patent transforms the measurement parameter from rotation amount to angular velocity. By detecting angular velocity around the shaft axis and using its relationship with hitting position, the system can calculate specific deviation distance from the sweet spot, converting qualitative detection into quantitative measurement.
Solution Approach 2:
The patent replaces the mechanical rotation detection system with an angular velocity detection system. By using angular velocity sensors to measure the rotational motion characteristics and correlating them with hitting position, the system achieves more precise position measurement than traditional rotation amount methods.
2Measurement precision
If angular velocity is used to calculate hitting position deviation, then accurate position feedback is provided, but calculation complexity increases due to need for relation information and multiple parameters
Solution Approach 1:
The patent performs preliminary calibration by establishing the relationship between angular velocity and hitting position in advance. This relation information is stored and reused during actual measurement, avoiding complex real-time calculations while maintaining high precision.
Solution Approach 2:
The patent introduces relation information as an intermediary between angular velocity measurement and hitting position calculation. This pre-established relationship acts as a lookup table or conversion model, simplifying the calculation process while preserving measurement accuracy.
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 users to precisely ascertain the deviation of their hitting position from the standard position, improving their swing technique by providing accurate feedback.
Implementation Method 1
an inertial sensor that measures an angular velocity generated around an axis in a longitudinal direction of a shaft portion of an exercise instrument
Implementation Method 2
a detection unit that detects an impact of hitting in a swing
Data Source
AI summary
The sensor information acquisition unit acquires an angular velocity around an axis of a shaft portion of an exercise instrument from a sensor unit. An exercise analysis unit detects a timing of an impact of the exercise instrument. A calculation unit calculates a distance between a standard position set on a hitting surface of the exercise instrument and a position of the hitting based on the angular velocity at the time of an impact.