sort of等于什么
Determining the Number of Zones in a Pick-and-sort Order Picking System
期刊名称： International Journal of Production Research
作者： Rene B.M. de Koster,Tho Le-Ducf,Nima Zaerpour
作者机构： Rotterdam School of Management
年份： 2012年
期号： 第2-4期
关键词： order picking; zone picking; warehousing; logistics; order fulfilment and distribution
摘要：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 zo
ne, 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...
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