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Determining the number of zones in a pick-and-sort order picking system

机译:确定分拣和拣选订单拣选系统中的区域数

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In this study we consider a pick-and-sort order picking system, in which batches of orders are picked simultaneously from different (work) zones by a group of order pickers. After picking, the orders are transported by a conveyor to a next station for consolidation and packing. Packing can only occur when an order has been picked completely. For a given number of workers, each assigned to a single zone, a larger number of zones reduces pick time (since travel time reduces), but increases waiting time for completion at the packing stations, because more partial batches needing assembly arrive at the packing stations. Our aim is to determine the optimal number of zones such that the total (picking and packing) time to complete a batch is minimised. We solve this problem by optimally assigning items to pick routes in each zone. We illustrate the method with data taken from a distribution centre of one of the largest online retailers in The Netherlands.
机译:在这项研究中,我们考虑一个分拣和拣选订单拣选系统,其中一组订单拣选者从不同(工作)区域同时拣选一批订单。拣配后,订单由传送带运输到下一个工位进行合并和包装。仅当订单被完全提取后才可以进行包装。对于给定数量的工人,每个工人分配到一个区域,较大数量的区域会减少拣货时间(因为行进时间减少了),但增加了在包装站完成的等待时间,因为需要组装的更多分批批次到达包装处站。我们的目标是确定区域的最佳数量,以使完成批次的总时间(拣配和包装)最小化。我们通过优化分配项目以选择每个区域中的路线来解决此问题。我们使用从荷兰最大的在线零售商之一的配送中心获取的数据来说明该方法。

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