Abstract
The increasingly usage of Intensive shelves, greatly increase the utilization of storage space, but also is more demanding on order picking time . Based on the storage layout of intensive mobile shelves, this paper combines the time cost of shelf movement with the moving distance under the guidance of seeking global optimum. Transform the single order picking process into TSP problem, while considering the picking process. The waiting cost of the order, and the minimum of the picking cost and the waiting cost of the whole batch of orders requiring shelf movement, to establish a two-stage mathematical model of the order picking order. Then, the algorithm for solving the model is designed, and the simulation is carried out by numerical examples to illustrate the law and characteristics of the problem more vividly, in order to provide reference and reference for the order picking activities of intensive mobile shelves.
Highlights
In the current era, with the continuous development of e-commerce and urban distribution, the efficiency of logistics activities has been more and more important
The intensive mobile shelf can improve the utilization of the storage space of the warehouse, it needs to remove the goods by continuously moving the shelves during the order picking process, which in turn further aggravates the time consuming of the order picking activities, even the shelf moving place
Based on the analysis of the application and research status of intensive mobile shelves, this paper studies the selection of bulk orders under single-channel intensive mobile shelves from the following aspects: 1 Under the single-channel intensive mobile shelf, the sorting problem of single order is transfer into TSP ; 2Construct a two-stage model and take the minimum total cost of order picking and waiting as the objective in a single period; 3 Based on the basic idea of genetic algorithm, the algorithm is designed in detail and implemented by Matlab programming
Summary
With the continuous development of e-commerce and urban distribution, the efficiency of logistics activities has been more and more important. The intensive mobile shelf can improve the utilization of the storage space of the warehouse, it needs to remove the goods by continuously moving the shelves during the order picking process, which in turn further aggravates the time consuming of the order picking activities, even the shelf moving place. It takes much longer than the time to take the goods out of the shelf, resulting in a reduction in the efficiency of the storage operation to some extent
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