摘要： 将调度策略及其作用于具体生产模型时得到的生产性能指标作为调度实例存储到实例库中,利用CBR方法找到与新的调度要求最相似的几个实例,并把这些相似实例所采用的调度规则按不同的权重进行组合后运用于该模型,以达到优化生产性能指标的目的。具体调度实例是对SRPT、LPT及SPT3种调度策略进行组合,仿真结果显示,相对于3种调度策略中的一种来说,组合调度策略作用下的平均加工周期及其方差得到了一定程度的优化。

关键词: 半导体生产线, 调度, 基于实例推理, 仿真

Abstract: A scheduling case is composed of the scheduling strategy and the performance measures of a wafer fab model affected by the scheduling strategy, and stored into a case base. When the wafer fab is scheduled, the cases most similar to the requirements are retrieved by applying CBR method. The scheduling strategies adopted in the similar cases are integrated into a compound one according to different weights, and imposed on the wafer fab to optimize its performance. Simulation results of composing three scheduling strategies i.e. SRPT, LPT, and SPT indicate that, the mean cycle time and its standard deviation for the compound scheduling strategy areoptimized compared to that for the individual scheduling strategy.

中图分类号: 

• TP278.A