Walking Posture Determination Using Acceleration Sensor
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Solution Overview
Problem
Conventional technologies for evaluating walking posture require large-scale equipment, are limited in environmental flexibility, and require specialized knowledge to understand, making it difficult to evaluate and improve walking posture in daily life.
Innovation Solution
A portable walking posture determination apparatus with a main body unit, acceleration sensor, storage unit, calculation unit, and output unit that calculates and displays walking posture levels using stride length, center-of-gravity balance, and stride width indices, facilitating real-time evaluation and improvement guidance without specialized knowledge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional large-scale equipment is used for measurement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical measurement equipment with an acceleration sensor that detects body movement through acceleration. This substitution of mechanical systems with sensor-based detection achieves accurate walking posture evaluation while dramatically reducing device complexity and enabling portable use.
2Measurement precision
If conventional measurement equipment is used, then measurement precision is improved, but ease of operation deteriorates due to specialized knowledge requirements
Solution Approach 1:
The patent uses visual display of evaluation results that can be intuitively understood without specialized knowledge. The acceleration sensor data is processed and presented in a form that allows general users to comprehend their walking posture quality, eliminating the need for specialized knowledge interpretation.
3Measurement precision
If conventional measurement systems are used, then measurement precision is improved, but adaptability deteriorates due to limited measurement environments
Solution Approach 1:
By replacing fixed mechanical measurement systems with portable acceleration sensors, the invention enables walking posture evaluation in diverse environments including daily life settings. The sensor-based approach eliminates environmental constraints of conventional equipment while maintaining 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 easy and real-time determination of walking posture without large-scale equipment, allowing for intuitive understanding and communication of improvement guidance, making it feasible to correct walking posture in daily life.
Implementation Method 1
an acceleration sensor for detecting acceleration of the main body unit
Data Source
AI summary
A walking posture determination apparatus correlates detected acceleration of a subject with walking posture. The apparatus stores an association between walking posture levels and values of an index that represents walking posture, calculates the index value by using acceleration that is detected by an acceleration sensor, and determines the walking posture level based on the calculated index value.