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Scheduling Policies in Flexible Bernoulli Lines with Dedicated Finite Buffers☆

机译:具有专用有限缓冲区的柔性伯努利线的调度策略☆

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摘要

This paper is devoted to studying scheduling policies in flexible serial lines with two Bernoulli machines and dedicated finite buffers. Priority, cyclic and work-in-process (WIP)-based scheduling policies are investigated. For small scale systems, exact solutions are derived using Markov chain models. For larger ones, a flexible line is decomposed into multiple interacting dedicated serial lines, and iteration procedures are introduced to approximate system production rate. Through extensive numerical experiments, it is shown that the approximation methods result in acceptable accuracy in throughput estimation. In addition, system-theoretic properties such as asymptotic behavior, reversibility, and monotonicity, as well as impact of buffer capacities are discussed, and comparisons of the scheduling policies are carried out.
机译:本文致力于研究具有两个伯努利机器和专用有限缓冲器的灵活串行线路中的调度策略。研究了基于优先级,循环和基于在制品(WIP)的调度策略。对于小型系统,使用马尔可夫链模型可以得出精确的解决方案。对于较大的生产线,将一条柔性生产线分解为多个相互作用的专用串行生产线,并引入迭代程序以近似系统生产率。通过大量的数值实验表明,该近似方法在吞吐量估计中产生了可接受的精度。此外,还讨论了系统理论性质,例如渐近行为,可逆性和单调性,以及缓冲容量的影响,并对调度策略进行了比较。

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