1. A Study on the Wheelchair-based
Remote Monitoring System for the Disabled
Seungwoo Noh1 and Hee Chan Kim2
1Interdisciplinary Program, Bioengineering Major, Graduate School, Seoul National University
2Department of Biomedical Engineering, College of Medicine, Seoul National University, and
Institute of Medical & Biological Engineering, Medical Research Center, Seoul National University
Detection of Obstacles
Proximity sensor using triangulation – indep. of color
ECG Measurement
With dry electrodes mounted on both armrests
Mobility Rights
Right to move freely w.o. any difficulties
Basic right in guaranteeing other rights
Government’s support in many directions
Problems
Number of disabled people participate in social activities is increasing
Dangerous environment- Potential accident risk
Unattended public facilities are increasing
Not easy to report in case of emergency
Proposed System
Measures both the user’s and wheelchair’s status
Warn or report of danger to remote monitoring people
Reduces risk during outdoor activity
System overview
Fall Detection
Test Run Results
Meaning
Engineering side’s approach to deal with mobility issue of the disabled
Limits
Overall system’s efficacy was not evaluated quantitatively
Needs customization for each users
Future Study
Motion artifact reduction through mechanical design optimization
Incorporation of LBS(Location Based Service) for indoor localizaiton
*This work was supported by the Korea Science and Engineering Foundation(KOSEF) grant funded by the Korea government(MOST) (No ).
Tri-axis accelerometer was used
Monitoring the inclination of the wheelchair
was feasible using ρ ,φ and θ
θ reflected both ρ and φ