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

한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

실시간 산업환경을 위한 IEEE 802.11기반 가상 폴링 알고리즘 개발

Development of IEEE 802.11 based virtual polling algorithm for real time industrial environments

  • 박지훈 (부산대학교 지능기계공학과) ;
  • 하경남 (부산대학교 지능기계공학과) ;
  • 이경창 (부경대학교 제어계측공학과) ;
  • 이석 (부산대학교 기계공학부)
  • Park J.H. (Mechanical and Intelligent Systems Engineering., PNU) ;
  • Ha K.N. (Mechanical and Intelligent Systems Engineering., PNU) ;
  • Lee K.C. (Department of Control and Instrumentation Engineering., PKNU) ;
  • Lee S. (Mechanical and Intelligent Systems Engineering., PNU)
  • 발행 : 2005.06.01
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초록

This paper proposes an effective algorithm, P-DCF(Polling DCF) to satisfy real-time requirements in the industrial environments, based on 802.11 DCF protocols. Theoretical analysis and actual experiments are carried out, which shows that the proposed P-DCF brings several benefits: 1) it reduces the time delay for frame transmission 2)it guarantees bounded upper limit of maximum transmission delay 3) it maintains fairness

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