Browse > Article

Spatial and Directional Sensation Prosthesis for the Blind  

노세현 (동아대학교 의과학연구원)
박우찬 (동아대학교 의과대학 안과학교)
신현철 (동아대학교 의과대학 신경외과학교)
김상호 (동아대학교 의과대학 신경과학교)
김영곤 (인제대학교 의생명공학대학 의용공학)
김광년 (동아대학교 의과대학 의공학교)
정동근 (동아대학교 의과학연구원)
Publication Information
Journal of Biomedical Engineering Research / v.25, no.2, 2004 , pp. 145-150 More about this Journal
Abstract
In this study for the prosthesis of the spatial and directional sensation for the blind, an ultrasonic scale system and an electronic compass system were developed. The ultrasonic scale utilizes 40 ㎑ sound for the detection of distance to the barrier and the spatial information is transferred to the blind by various sound interval, which is proportional to the distance. The electronic compass utilizes a magnetoresistor bridge for the detection of the magnetic field strength of earth in horizontal plane. The information for the direction of the earth's north is transferred by tactile stimuli by a vibrating motor band around upper head. Detection distance of the ultrasonic scale is ranged from 0.065 to 3.26 meters, and the detection angle resolution of the electronic compass is about 22.5 degrees. The integrated system of the ultrasonic scale and the electronic compass was developed. Distance information is converted to the location of the tactile stimulation along the clockwise direction by a vibrating motor according to the distance installed around upper head of the blind. The intent of this article is to provide an practical prosthetic tool of spatial and directional sensation for the blind. Daily practice of this system will improve the usefulness of this system.
Keywords
the blind; Ultrasonic scale; Electronic compass; Spatial sensation; Directional sensation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Sensory and communication aids /
[ A.M. Cook;A.M. Cook;(ed.);J.G. Webster(ed.) ] / Therapeutic Medical Devices: Application and Design
2 Artificial vision for the blind by connecting a television camera to the visual cortex /
[ Wm.H. Dobelle ] / ASAIO   DOI   ScienceOn
3 /
[ G.M. Shepherd ] / Neurobiology
4 /
[ G.E. Fonda ] / Management of low vision
5 Visual space perception and visually directed action /
[ J.M. Loomis;J.A. Da SIlva;N. Fujita(et al.) ] / J Exp Psychol Hum Percept Perform   DOI   ScienceOn
6 Pattern identification on a fingertip-scanned electrotactile display /
[ K.A. Kaczmarek;M.E. Tyler;P. Bach-y-Tita ] / Proc. 19th Annu. Int. Conf. IEEE Eng. Med. Biol. Soc.
7 Artificial vision /
[ M.S. Humayun;E. de Juan Jr ] / Eye   DOI   ScienceOn
8 Retinal prosthesis for the blind /
[ E. Margalit;M. Maia;J.D. Weiland(et al.) ] / Surv Ophthalmol.   DOI   ScienceOn
9 시각정보처리 메커니즘을 이용한 형태정보인식 신경회로망의 구성 /
[ 강익태;김욱현;이건기 ] / 대한의용생체공학회지
10 Clarion cochlear implant: Phase I investigational result /
[ R.A. Schindler;D.K. Kessler;H.S. Haggerty ] / American Journal of Otology
11 Cochlear implants /
[ E. Douek ] / Baillieres Clin Neurol.
12 /
[ J.K. Chapin;K.A. Moxon ] / Neural prosthesis for restoration of sensory and motor function