In the second stage, based on the practical constraints of the automatic three-dimensional warehouse systems, I proposed an improved ant colony algorithm for optimal solution of the request stacking machine scheduling problem. 在第二阶段则基于自动立体化仓库系统的实际约束情况,提出了一种改进蚁群算法,求解面向订单并行分拣模式的堆垛机调度问题的优化解。