Motion Measurement Apparatus for Real-Time Kinematic Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motion measurement devices, such as the swing analysis device, struggle to intuitively convey the moment-by-moment posture and trajectory of a moving object, like a golf club, during a swing operation, making it difficult for users to assess the quality of their motion in real-time.
Innovation Solution
A motion measurement apparatus comprising a detector unit that captures velocity-related information in three-axis directions, a controller unit that extracts kinematic physical quantities, and an output unit generating perceivable signals like sound or light that change based on these quantities, allowing users to intuitively grasp the motion features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If swing feature information is calculated from the whole series of operations, then comprehensive motion analysis is achieved, but intuitive understanding of moment-by-moment posture and trajectory is lost
Solution Approach 1:
The patent divides the continuous motion trajectory into discrete segments by extracting feature amounts at specific intervals. The controller calculates swing feature information not just for the entire swing but also for intermediate positions, creating segmented representations of the motion that preserve moment-by-moment details while maintaining comprehensive analysis capability.
Solution Approach 2:
The patent introduces an intermediary representation layer between the raw sensor data and the final analysis result. The swing feature information acts as an intermediary that translates complex continuous motion data into discrete, interpretable features that can be intuitively understood while still representing the comprehensive motion characteristics.
2Measurement precision
If detailed kinematic physical quantities are extracted, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent extracts only the essential kinematic physical quantities needed for swing analysis from the raw sensor data, rather than processing all possible motion parameters. The controller selectively extracts feature amounts related to swing posture and trajectory, reducing computational complexity while maintaining measurement precision for the critical parameters.
Solution Approach 2:
The patent applies different processing levels to different aspects of the motion data. Critical kinematic parameters that affect swing quality are extracted with high precision, while less important parameters are processed at a lower level or aggregated, creating a local quality differentiation that optimizes the balance between measurement precision and device complexity.
Data Source
AI summary
A motion measurement apparatus according to an embodiment of the present technology includes a detector unit, a controller unit, and an output unit. The detector unit is to be attached to a detection target and detects velocity-related information, the velocity-related information being related to temporal changes in velocities in three-axis directions of the detection target being in motion in a space. The controller unit extracts a motion feature amount including one or a plurality of kinematic physical quantities of the detection target on the basis of the velocity-related information. The output unit generates a perceivable measurement signal that changes depending on the motion feature amount.