한국경영과학회:학술대회논문집 (Proceedings of the Korean Operations and Management Science Society Conference)

한국경영과학회 (The Korean Operations Research and Management Science Society)
권호 표지

M/G/l 대기모델을 이용한 자동창고 시스템의 성능 평가

Performance Estimation of AS/RS using M/G/1 Queueing Model with Two Queues

  • 이문환 (한양대학교 산업공학과) ;
  • 임시영 (한양대학교 산업공학과) ;
  • 허선 (한양대학교 산업공학과) ;
  • 이영해 (한양대학교 산업공학과)
  • Lee, Moon-Hwan (Depatment of Industrial Engineering, Hanyang University) ;
  • Lim, Si-Yeong (Depatment of Industrial Engineering, Hanyang University) ;
  • Hur, Sun (Depatment of Industrial Engineering, Hanyang University) ;
  • Lee, Young-Hae (Depatment of Industrial Engineering, Hanyang University)
  • 발행 : 2000.10.01
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초록

Many of the previous researchers have been studied for the performance estimation of an AS/RS with a static model or computer simulation. Especially, they assumes that the storage/retrieval (S/R) machine performs either only single command (SC) or dual command (DC) and their requests are known in advance. However, the S/R machine performs a SC or a DC. or both or becomes idle according to the operating policy and the status of system at an arbitrary point of time. In this paper, we propose a stochastic model for the performance estimation of a unit-load AS/RS by using a M/G/1 queueing model with a single-server and two queues. Expected numbers of waiting storage and retrieval commands, and the waiting time in queues for the storage and retrieval commands are found

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