关键词: 自动化导航小车, 随机路径, 多车道嵌套, 排队网, 状态空间分解法

Abstract: Stochastic production system containing multiple manufacturing cells with Automatic Guided Vehicle (AGV) has become a typical manufacturing system structure for customized enterprises.To analyze the performance of manufacturing system with AGV and nested tracks,the uncertainty of manufacturing system with the stochastic path of AGV were considered,and the operation of system was described by queuing network model with finite buffer.The traditional state space decomposition method was expanded to establish state model of each node according to the relation between cells and stochastic-path AGV,and pure discontinuous Markov process was used to analyze the state transferring discipline between each node.Iteration algorithm was constructed to calculate the stable probability of node state.A simulation model was established,and the simulation experiment was designed and conducted to testify the validity of the proposed state space decomposition method.The sensitivity of system performance was also analyzed.

Key words: automatic guided vehicle, stochastic path, multiple nested tracks, queuing network, state space decomposition