Research on picking route optimization for one stacker in multiple aisles automated storage and retrieval system

Abstract

The paper analyzed the characteristic of the stacker about working mode and proposed a method to optimize the order picking path of one stacker in multiple aisles AS/RS. As developed transformation rules correspond to picking operations, the order picker routing problem was transferred into a TSP. Based on the return strategy picking model, a mathematical model was built with packing capacity constraints and improved ant colony algorithm is presented to solve the order picker routing problem. Experimental results show that the improved algorithm has better overall search ability and astringency, and it is an effective solution to the order picking problem.