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. 2009-0065611). Tri-axis accelerometer was used Monitoring the inclination of the wheelchair was feasible using ρ ,φ and θ θ reflected both ρ and φ