Wheelchair Path Planning Based on Road Surface Undulations
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Solution Overview
Problem
Wheelchairs face difficulties in traversing roads due to varying road conditions, which hinders their convenience and stability during travel.
Innovation Solution
An information processing device determines a travel path for wheelchairs based on road surface undulations, using sensors and processors to calculate optimal paths that minimize the wheelchair's center of gravity deviation and reduce inclinations, thereby improving stability and ease of travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a wheelchair travels on a road with undulations, then the wheelchair can cross the road, but the stability and ease of travel deteriorate due to road surface variations
Solution Approach 1:
The system performs preliminary detection of road surface undulations before the wheelchair reaches them. The information processing device calculates the travel path in advance by analyzing road surface data, identifying areas with excessive inclination or curvature, and determining an optimal route that avoids these problematic sections, thereby ensuring stable and easy travel.
Solution Approach 2:
The information processing device acts as an intermediary between the road environment and the wheelchair control system. It processes road surface information, calculates safe travel paths, and provides guidance to the wheelchair, mediating the interaction between the wheelchair and complex road conditions to maintain stability and ease of travel.
2Productivity
If the wheelchair follows a straight path across the road, then the travel distance is minimized, but the stability deteriorates due to road undulations and center of gravity deviation
Solution Approach 1:
The system changes the travel path parameters (route, inclination angle, curvature) based on detected road surface conditions. By adjusting these parameters to avoid excessive inclinations and curvatures, the system maintains wheelchair stability while still achieving efficient road crossing through optimized path selection.
Solution Approach 2:
The travel path is dynamically adjusted based on real-time road surface information. The information processing device continuously evaluates road conditions and modifies the recommended path to maintain optimal stability parameters, making the system adaptive to varying road undulations while preserving travel efficiency.
Data Source
AI summary
An information processing device includes a control unit that determines a travel path of a wheelchair that crosses a road. The control unit determines the travel path of the wheelchair based on information on undulations of a road surface of the road.