An optimization model for storage location problem in the automated storage and retrieval system

2011 ◽  
Author(s):  
Shu-an Liu ◽  
Qing Wang ◽  
Ling Jin
Keyword(s):  
Optimization Model ◽  
Location Problem ◽  
Retrieval System ◽  
Storage And Retrieval ◽  
Storage Location ◽  
Automated Storage

scholarly journals A Special Case of the Multiple Traveling Salesmen Problem in End-of-Aisle Picking Systems

2021 ◽  
Author(s):  
Lennart Baardman ◽  
Kees Jan Roodbergen ◽  
Héctor J. Carlo ◽  
Albert H. Schrotenboer
Keyword(s):  
Retrieval System ◽  
Branch And Cut ◽  
Buffer Size ◽  
Storage And Retrieval ◽  
Optimal Value ◽  
Cut Method ◽  
Storage Location ◽  
Automated Storage ◽  
Special Case ◽  
Branch And Cut Method

This study focuses on the problem of sequencing requests for an end-of-aisle automated storage and retrieval system in which each retrieved load must be returned to its earlier storage location after a worker has picked some products from the load. At the picking station, a buffer is maintained to absorb any fluctuations in speed between the worker and the storage/retrieval machine. We show that, under conditions, the problem of optimally sequencing the requests in this system with a buffer size of m loads forms a special case of the multiple traveling salesmen problem in which each salesman visits the same number of cities. Several interesting structural properties for the problem are mathematically shown. In addition, a branch-and-cut method and heuristics are proposed. Experimental results show that the proposed simulated annealing-based heuristic performs well in all circumstances and significantly outperforms benchmark heuristics. For instances with negligible picking times for the worker, we show that this heuristic provides solutions that are, on average, within 1.8% from the optimal value.

scholarly journals Automated storage and retrieval system for Industry 4.0 concept

2019 ◽  
Vol 537 ◽  
pp. 032036 ◽  
Author(s):  
L N Borisoglebskaya ◽  
E N Provotorova ◽  
S M Sergeev ◽  
A P Khudyakov
Keyword(s):  
Industry 4.0 ◽  
Retrieval System ◽  
Storage And Retrieval ◽  
Automated Storage
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