시각장애자의 보행지원에 관한 연구

A study on walking aids for the blind

  • 함광근 (명지대학교, 전자공학과) ;
  • 한상휘 (명지대학교, 전자공학과) ;
  • 양승열 (명지대학교, 전자공학과) ;
  • 김현규 (명지대학교, 전자공학과) ;
  • 허웅 (명지대학교, 전자공학과)
  • Ham, K.K. (Dept. of Electronics Eng., Myongji Univ.) ;
  • Han, S.H. (Dept. of Electronics Eng., Myongji Univ.) ;
  • Yang, S.Y. (Dept. of Electronics Eng., Myongji Univ.) ;
  • Kim, H.G. (Dept. of Electronics Eng., Myongji Univ.) ;
  • Huh, W. (Dept. of Electronics Eng., Myongji Univ.)
  • 발행 : 1997.05.23

초록

We implementated an ultrasonic wave cane for the blind. The cane detect walking obstacle and provide a walking direction. The cane used time of flight method of ultrasonic-wave for a measurement of obstacle distance and fluxgate geomagnetic sensor for guidance of walking direction. This system can detect an obstacle of upward, forward, downward and that warn to the blind with vibration, pitch sound. And the blind can know walking direction to voice output. As a result, the blind could efficiently avoid a exposed obstacle, obstacles beyond knee, an exposed street obstacle, a branch of tree person's height and it is usable search for surrounding land mark.

키워드