考虑随机故障的FMS双工序系统智能RGV动态调度策略  

作　　者：李嘉琪 

机构地区：[1]重庆大学,重庆400044

出　　处：《工业控制计算机》2020年第2期117-120,共4页Industrial Control Computer

摘　　要：针对柔性加工系统(FMS)出现偶发故障后轨道式自动引导车(RGV)调度无法正常进行的问题,研究分析RGV在此类系统中的作业流程,将其分为两种情形,并据此提出循环节的概念和RGV作业路径约束。以等长时间内系统产量最大为目标,建立了柔性生产系统中的RGV调度模型。以此为基础提出了基于距离贪心的RGV目标选择策略,通过计算仿真,证明RGV能在系统出现故障时平稳调度,且系统生产效率优于时间贪心策略,证明了该文策略的有效性。In view of the problem that RGV can not be scheduled normally after the occasional failure of the flexible machining system(FMS),this paper studies and analyzes the operation flow of RGV,divides it into two situations,and provides the concept of loop section and RGV operation path constraint.A RGV scheduling model is established for flexible production system and the objective is to maximize system output in equal time.On this basis,the RGV target selection strategy based on distance greed is proposed in this paper.The calculation and simulation indicate that RGV can be smoothly schedule in case of system failure,and this strategy is effective.

关 键 词：自动引导车调度 柔性生产系统 随机故障 作业循环 距离贪心 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]