• 제목/요약/키워드: guidance robot for the visually impaired

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시각장애인 유도로봇의 경로 결정 알고리즘 (Path Determination Algorithm of Guidance Robot for the Visually Impaired)

  • 장태진;신동범;이응혁;홍승홍
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 학술회의 논문집 정보 및 제어부문 A
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    • pp.259-262
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    • 2003
  • In this paper, we studied the path determination algorithm of the guidance robot for the visually impaired. Using the guidance robot for the visually impaired, the visually impaired can go to the destination where they want without other's heir. The navigation path of the guidance robot for the visually impaired must be the optimal path not only the shortest but also the most safe, which is different from a shortest path for common people. GPS and electronic map are used for the location information of the visually impaired. We corrected the error by converting the coordinates of location information from GPS, which includes maximum several tens of meters error, to the coordinates of electronic map. Information such as simple path and direction to the destination is not enough because it may be different between a going path from the start to the destination and a coming path from the destination to the start as around environment. So, we added information which can be dangerous for the visually impaired such as driveway, sidewalk without braille blocks, crosswalk, stairs and overpass, each has weight value as dangerous degree, when matching the GPS information to the electronic map, enough large as 1:5,000 scale.

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시각장애인을 위한 길안내 로봇의 요구사항 분석과 검증 (Requirements Analysis and Verification of Guiding Robots for Visually Impaired Person)

  • 류성열;김덕운
    • 한국IT서비스학회지
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    • 제5권2호
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    • pp.189-198
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    • 2006
  • This study assumed that the best road guidance system for the vision impaired is a robot and analyzed and verified the requirements of road guidance system. In order to do so, the characteristics and inconveniences of the vision impaired as passengers and pedestrians were examined and their reactions to warnings and dangerous situations were analyzed. Users' needs and robots' functional requirements were applied to analyze the requirements of road guidance system. To verify whether the proposed requirements would be applied to robots effectively, a service scenario was used.

시각장애인 유도 로봇의 자기 위치 추정을 위한 관성 항법 시스템의 설계 및 구현 (Design and Implementation of INS for Self Localization of the Guidance Robot for the Visually Impaired)

  • 심현민;고민수;이응혁;홍승홍
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 합동 추계학술대회 논문집 정보 및 제어부문
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    • pp.130-133
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    • 2002
  • In this paper we suggest Inertial navigation system(INS) for the guidance robot for the visually impaired. we use 3 gyroscopes and 3 accelerometers and calculate using pentium III computer, we can acquire altitude and position of the guidance robot using this system.

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A Study on the Sound-Imaging Algorithm of Obstacle Information for the Visually Impaired

  • Shim, Hyeon-Min;Lee, Jong-Shill;Lee, Eung-Hyuk;Hong, Seung-Hong
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2002년도 ITC-CSCC -1
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    • pp.389-392
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    • 2002
  • In this paper, we implemented system to detect obstacle in that develop a guidance robot for the visually impaired through sound. We used ultra sonic sensor to detect obstacle. We supposed the algorithm that classifies distance and direction of obstacle using information that produce correct warning negative sign according to direction and distance of obstacle. According to the experiment, a reagent could detect obstacle without sight information.

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