关键词: 立体仓库, 同轨双车, 存储效率, 货位分配, 集成多目标生物地理学优化算法

Abstract: For the problem of low storage efficiency in large industrial warehouse,the warehouse layout model used double-crane on single roadway with two I/O station was proposed.The storage location assignment model which was suitable for double-cranes mode was established by putting the storage efficiency priority principle and structural stability principle as the evaluation criteria.Three kinds of Multi-Objective Biogeography-Based Optimization (MBBO) algorithms including vector evaluated biogeography-based optimization,non-dominated sorting biogeography-based optimization and niched Pareto biogeography-based optimization were designed,and Ensemble Multi-Objective Biogeography-Based Optimization (EMBBO) algorithm was constructed to get optimal solution set.The simulation results with MATLAB tools showed that the EMBBO algorithm had better convergence and search efficiency than the three kinds of MBBO algorithms and standard Genetic Algorithm (GA).The EMBBO algorithm had stable performance and could effectively solve the storage location assignment problem of any size.The research had a certain theoretical guidance and application value to improve the storage efficiency and structural stability of large industrial warehouse.

Key words: automated warehouse, double-crane, storage efficiency, storage location assignment, ensemble multi-objective biogeography-based optimization