供应链存储系统无线射频识别使能的定量在制品法控制策略仿真
Simulation research on radio frequency identification-enable CONWIP control strategy for inventory of supply chain

无线射频识别(radio frequency identification, RFID)技术的出现为库存控制策略的创新提供了一条有效的途 径. 本文利用RFID技术, 将原有单个制造系统的流通卡系统推广到供应链的多级库存网络中, 设计了RFID使能的 电子流通卡系统. 基于电子流通卡, 实现了RFID使能的定量在制品法(constant work-in-process, CONWIP)控制策略; 并建立了CONWIP控制策略的分销网络模型. 为比较和验证CONWIP控制策略性能, 开发了三级分销网络仿真系 统, 使用该系统, 将其与RFID使能的(r;Q)策略进行比较, 验证了CONWIP策略在一定条件下, 能够有效降低存储成 本、提高服务水平.
Radio frequency identification (RFID) provides an efficient way to the innovation of inventory control strategies. In this paper, by taking the advantage of RFID, we extend the original card system of single manufacturing plant to the multi-echelon inventory network of supply chain distributed in global area. By using the RFID-enable electronic card system, we realize the control strategy of CONWIP, and build the mathematical model of distribution network for the control strategy of CONWIP. To validate the efficiency of the CONWIP strategy, a simulation system of a supply chain with three echelon inventories is developed. Using this system, we compare the strategy with the (r;Q) strategy based on the RFID. Simulation results show that the RFID-enable CONWIP strategy can lower the inventory level and raise the service level effectively.