Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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Method for Measuring Absolute Position of a Yard Crane for Port Automation

항만 자동화를 위한 야드 크레인의 절대위치 측정 기법

  • Chun T.W. (Dept. of Electrical Eng., Univ. of Ulsan) ;
  • Kim K.M. (Dept. of Electrical Eng., Univ. of Ulsan) ;
  • Lee H.H. (Dept. of Electrical Eng., Univ. of Ulsan) ;
  • Kim H.G. (Dept. of Electrical Eng., Univ. of Kyungbook) ;
  • Nho E.C. (Dept. of Electrical Eng., Univ. of Pukyong)
  • 전태원 (울산대학교 전기전자정보시스템공학부) ;
  • 김경만 (울산대학교 전기전자정보시스템공학부) ;
  • 이홍희 (울산대학교 전기전자정보시스템공학부) ;
  • 김흥근 (경북대학교 전자전기공학부) ;
  • 노의철 (부경대학교 전기공학과)
  • Published : 2003.07.01
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Abstract

Since 1960s. container shipping volume has increased dramatically and continuous on a trend of rapid growth, and so the number of containers handled at the port increases. In order to improve yard crane operating efficiency, the precise position measurement of the yard crane is important. This paper describes the method to measure the absolute position of yard crane using the output pulse of an encoder and infrared sensors. The crane position is calculated by counting the output pulse of an incremental encoder, which is mounted on the wheel in the crane. By the way, the wheel slippage on rail may cause some errors in crane position information obtained from encoder pulses, and the errors in the crane position information are compensated with infrared sensors. The performance of proposed method is verified on experimental results with the simulator of yard crane, the size of which is about 1/10 with the real crane.

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