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本文通过对 G.Cohen 给出的 n×m 的加工系统 Z 域模型加以改进,即选择工件的输入时间和输出时间分别作输入变量和输出变量,利用矩阵与事件图的关系,研究闭环系统反馈对系统矩阵的影响,并由此给出一个保证闭环系统具有最小特征值前提下选择最少托盘数量的优化算法,即托盘的优化调度算法.
This paper improves the Z-domain model of n × m processing system given by G. Cohen, that is, selecting the input time and output time of the workpiece as the input variable and the output variable respectively. Using the relationship between the matrix and the event graph, the feedback of the closed-loop system The influence of the matrix on the system is analyzed and an optimal algorithm of selecting the minimum number of pallets under the premise of the minimum eigenvalue of the closed-loop system is given. That is the optimal scheduling algorithm of the pallet.