The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Walking Assistance System for Visually Impaired People using Vultiple sensors

다중 센서를 이용한 시각장애인 보행 보조 시스템

  • 박혜빈 (남서울대학교 전자공학과) ;
  • 고용진 (남서울대학교 전자공학과) ;
  • 이승민 (남서울대학교 전자공학과) ;
  • 장지훈 (남서울대학교 전자공학과) ;
  • 이붕주 (남서울대학교 전자공학과)
  • Received : 2017.06.16
  • Accepted : 2017.08.01
  • Published : 2017.08.31
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Abstract

In this thesis, the ambulatory aid mechanism was implemented so that blind people could be safer at risk of walking outdoors. Using ultrasonic sensors, the obstacles can be detected when the distance between the obstacle is within 50 cm of the obstacle. If the light sensor becomes less than 25 lux, the LED will automatically turn on and help the safety of the visually impaired and the security of sight of the peripheral walkers. Color recognition sensors increase the rate of recognition of yellow color by the detection distance is 1cm, it vibrated when yellow light was detected. Using GPS with 7.3 m of error range, the guardian was able to check the location of the visually impaired.

본 논문에서는 시각 장애인들이 실외 보행 시 위험 요소로부터 보다 안전할 수 있도록 보행 보조기구를 구현하였다. 초음파 센서를 이용하여 장애물과의 거리가 전방 50cm 이내 및 전방 $52^{\circ}$ 이내 일 때 장애물 감지가 가능하며 조도 센서를 통해 25lux 이하가 되면 LED가 자동 점등되어 시각 장애인의 안전을 보장하고 주변 보행자들의 시야 확보에도 도움을 주는 시스템을 제작하였다. 색상 인식 센서는 감지 거리를 1cm로 하여 노란색의 인식률을 높이고 노란색을 감지하였을 때 진동이 울리도록 하였으며 평균 7.3m의 오차 범위를 가진 GPS를 활용하여 시각 장애인의 위치를 보호자가 확인할 수 있도록 하였다.

Keywords

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