Walking Support System Dynamic Foot Landing Guidance
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Solution Overview
Problem
Conventional walking support systems fail to accurately guide foot landing positions, leading to unsuitable motion guidance for users.
Innovation Solution
A walking support system that includes a motion detector, foot landing position detector, determiner, and output controller, using dynamic models like an inverted pendulum to recommend stable foot landing positions, which can be displayed to users through a support device or program, adjusting based on user input and movement dynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional foot landing position indication methods are used, then the system is simple to operate, but the gait stability and motion guidance accuracy deteriorate
Solution Approach 1:
The system dynamically adjusts foot landing position recommendations based on real-time detection of user motion state, foot landing positions, and dynamics parameters. The determiner continuously updates recommendations as the user walks, adapting to changing gait patterns and motion characteristics, thereby improving gait stability without requiring a permanently complex system structure.
Solution Approach 2:
The system implements a closed-loop feedback mechanism where the motion detector continuously monitors user motion, the foot landing position detector tracks actual foot placement, and this information feeds back to the determiner which adjusts recommendations accordingly. This feedback loop enables the system to maintain reliable gait guidance by constantly comparing actual performance with target patterns and making real-time corrections.
2Measurement precision
If dynamic models and continuous determination are used, then the motion guidance accuracy improves, but the computational load and processing time increase
Solution Approach 1:
The system pre-establishes the dynamic model framework and determination algorithms before actual gait analysis begins. The motion detector and foot landing position detector are pre-configured to capture relevant parameters, and the determiner has pre-loaded computational models ready for real-time execution. This preliminary preparation reduces processing delays during actual gait guidance operations.
Solution Approach 2:
The system optimizes computational parameters by selectively processing only the most critical motion parameters and dynamics data relevant to foot landing position determination. Rather than analyzing all possible motion variables, the system focuses on key parameters that have the greatest impact on gait stability, thereby reducing computational load and processing time while maintaining high measurement precision.
3Adaptability or versatility
If multiple detectors and determiners are added, then the gait guidance functionality improves, but the device complexity and cost increase
Solution Approach 1:
The motion detector and foot landing position detector are designed as multi-functional components that serve multiple purposes within the system. The motion detector not only tracks overall body movement but also contributes to determining foot landing positions and dynamics parameters. The foot landing position detector simultaneously provides data for both position tracking and gait pattern analysis. This multi-functionality reduces the need for separate dedicated sensors for each measurement type, thereby improving gait guidance capability without proportionally increasing device complexity.
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
Effectively guides users to recommended foot landing positions, improving gait stability and smoothness, enabling proper foot placement and turning directions.
Implementation Method 1
a motion detector 100 which detects a motion of a user P
Implementation Method 2
a foot landing position detector 230 which detects a foot landing position of the user P
Implementation Method 3
the dynamics may be a dynamic model including an inverted pendulum representing motions of an upper body or a centroid in the horizontal direction
Data Source
AI summary
A walking support system includes: an information output device (260); a motion detector (220) which detects a motion of a user; a foot landing position detector (230) which detect a foot landing position of the user; a determiner (240) which determines a recommended foot landing position which is a landing position of the feet suitable for stabilizing motions of a gait of the user on the basis of motions of a gait of the user detected by the motion detector, the foot landing position detected by the foot landing position detector, and dynamics; and an output controller (250) which outputs information indicating the recommended foot landing position determined by the determiner to the information output device.