A Study on the Development of Panel Sensor for Obstruction Detecting at the Railway Level Crossing

철도건널목 지장물 검지를 위한 보판센서 연구 개발

  • 김종기 (한국철도기술연구원) ;
  • 류상환 (한국철도대학, 철도전기제어과) ;
  • 유광균 (한국철도대학, 철도전기제어과) ;
  • 조황 (광운대학교 정보제어공학과) ;
  • 이기서 (광운대학교 정보제어공학과) ;
  • 이재훈 (특허청, 전기전자심사본부 컴퓨터심사팀)
  • Published : 2006.04.01

Abstract

For a short-term measurement to reduce an accident on a railroad crossing, it is necessary to find out the weakness and problems of existing equipment in the railroad transportation system. The analysis of railroad crossing accidents shows that main causes of accidents (24.9%) are the careless driving including an engine problem, damage on the safety equipment, slide on the snow, and an engine stop on the railroad crossing. Therefore, it is required to install a sensor, or to make a crossing gate at the exist for detecting obstacles on a railroad to prevent collisions among trains. This paper suggests 'a panel sensor using the strain gauge' to make up the weaknesses of the sensing Dead Zone, which are caused by using a laser method, and to detect any small objects passing railroads in order to reduce the errors, which are occurred in the earth magnetic field for controlling Exit Slide Crossing Arm Detector. The device, suggested in this paper, is verified with detecting any small objects passing the railroad, with judging entry decision clearly, and with controlling passing gate and obstruction warnings/cautions obstacles at the same time, through an experimental test.

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