Golf Swing Diagnosis Apparatus Rotation Angle Analysis

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Solution Overview

Problem

Existing golf swing diagnosis systems struggle to clearly depict the features of a swing before impact, making it difficult to understand and evaluate the swing technique effectively.

Innovation Solution

A swing diagnosis apparatus that calculates a level based on the relationship between the rotation angle of a golf club or similar exercise appliance about its rotation axis and the inclination of the ball hitting portion at a predetermined timing, using data from inertial sensors to grade and display the swing features visually.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a radar chart is used to display the movement state of the hit golf ball, then the performance of the golf club can be easily evaluated, but it is hard to understand features of the swing till the impact

Engineering Contradiction:

Improveevaluation accuracyVSAvoidswing feature information

Core Design Contradiction:

Measurement precisionVSLoss of information

Solution Approach 1:

The patent divides the swing analysis into multiple segments: backswing phase, downswing phase, and impact phase. Each phase is analyzed separately with specific parameters (rotation angle, inclination angle, timing), allowing detailed understanding of swing features while maintaining overall performance evaluation capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent adds temporal dimension to the analysis by introducing timing parameters (predetermined timing between backswing start and impact). This transforms the static radar chart into a dynamic multi-dimensional analysis that includes when specific swing events occur, providing both performance evaluation and feature understanding.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of operation

If only the movement state of the hit golf ball is displayed, then the performance evaluation is simplified, but the features of the swing process are lost

Engineering Contradiction:

Improveevaluation simplicityVSAvoidswing process data

Core Design Contradiction:

Ease of operationVSLoss of information

Solution Approach 1:

The patent performs preliminary analysis of swing parameters (rotation angle, inclination angle, timing) before final performance evaluation. This preliminary action captures detailed swing features that are then processed into evaluable metrics, preserving information while maintaining simplicity.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces intermediate parameters (rotation angle about rotation axis, inclination of ball hitting portion) that serve as mediators between raw swing data and final performance evaluation. These intermediates preserve detailed swing features while being systematically processed for simplified evaluation output.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10354550B2Swing diagnosis apparatus, swing diagnosis system, swing diagnosis method, and recording medium

Publication Date: 2019.07.16 SEIKO EPSON CORP

AI summary

A swing diagnosis apparatus includes a level calculation section that calculates a level on the basis of a relationship between a rotation angle about a rotation axis of an exercise appliance at a predetermined timing between the time of starting a backswing and the time of impact with a longitudinal direction of the exercise appliance as the rotation axis, and an inclination of a ball hitting portion of the exercise appliance at impact.