Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)

  • 2001.04a
  • /
  • Pages.586-589
  • /
  • 2001
  • /
  • 2005-8446(pISSN)
Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

Development of Wireless Extended Profibus with Hard Real-time Requirement

엄격한 실시간 요구조건을 만족하는 무선 확장 Profibus의 개발

  • 이경창 (부산대 대학원 지능기계공학과) ;
  • 김도형 (부산대 대학원 지능기계공학과) ;
  • 이석 (부산대 기계공학부)
  • Published : 2001.04.01
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Abstract

This paper focuses on a method to connect mobile devices such as mobile robot, Automated Guided Vehicle(AGV) to a fieldbus. In this paper, the IEEE 802.11 wireless LAN is used to extend a Profibus-DP network for the mobile devices. In order to integrate these two networks, a protocol converter is developed with two process(i.e., master process of Profibus-DP and virtual master process of IEEE 802.11) and an transmission buffer. Futhermore, a virtual polling algorithm is developed at the protocol conveter in order to satisfy real-time requirements on data communication.

Keywords