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Automatic adaptation in the NavChair Assistive Wheelchair Navigation System
1Texas Robotics and Automation Center (TRACLabs), Houston 77058, USA.
IEEE Transactions on Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
|December 28, 1999
Summary
The NavChair system enhances power wheelchair mobility for individuals with impairments by adaptively controlling navigation. It automatically selects optimal operating modes for improved user independence and safety.
Area of Science:
- Robotics
- Assistive Technology
- Human-Computer Interaction
Background:
- Power wheelchair use is challenging for individuals with cognitive, perceptual, or motor impairments.
- Existing systems may lack adaptive control for diverse user needs.
- Shared control offers a promising approach to augment wheelchair navigation.
Purpose of the Study:
- To develop and evaluate an adaptive shared control system for power wheelchairs.
- To enable automatic selection of appropriate operating modes for enhanced navigation assistance.
- To improve mobility and independence for individuals with impairments.
Main Methods:
- The NavChair Assistive Wheelchair Navigation System utilizes an adaptive shared control mechanism.
- Distinct operating modes distribute control between the wheelchair and operator.
- An algorithm automatically selects the most suitable mode based on situational and global location data.
Main Results:
- The NavChair system demonstrated effective task-specific navigation assistance.
- Experimental evaluations validated the adaptive mode selection mechanism.
- The system successfully adapted to the wheelchair's immediate situation and global location.
Conclusions:
- The NavChair system offers a viable solution for improving power wheelchair navigation.
- Adaptive shared control can significantly enhance mobility for users with impairments.
- Automatic mode selection improves usability and independence in assistive wheelchair technology.
