系统仿真学报 ›› 2025, Vol. 37 ›› Issue (1): 284-298.doi: 10.16182/j.issn1004731x.joss.23-1121

• 论文 • 上一篇    

基于存储点联合调度的社区无人车配送问题研究

刁小龙   

  1. 大连海事大学 交通运输工程学院,辽宁 大连 116026
  • 收稿日期:2023-09-11 修回日期:2023-10-24 出版日期:2025-01-20 发布日期:2025-01-23
  • 第一作者简介:刁小龙(1993-),男,博士生,研究方向为交通运输规划与管理。

Driverless Vehicles Distribution Problem in Communities in Cooperation of Storage Points

Diao Xiaolong   

  1. Transportation Engineering College, Dalian Maritime University, Dalian 116026, China
  • Received:2023-09-11 Revised:2023-10-24 Online:2025-01-20 Published:2025-01-23

摘要:

随着智慧社区的不断推进,社区无人车配送成为政府、经营者和学者关注的热点问题。为均衡各存储点的运力需求并降低无人车的投入成本,将社区中的多个存储点联合调度,即一辆无人车可以往返于社区中不同的存储点取派货。社区无人车配送问题包括卸货子问题和无人车调度子问题,针对卸货子问题,以货车等待时间最小为目标,各存储点卸货效率、货车最大等待时间等为约束,优化货车的卸货方案;针对社区无人车调度子问题,以配送成本最小为目标,无人车最大载重、客户需求等为约束,优化无人车的路径方案。构建了两阶段规划模型并设计了一种两阶段变邻域搜索智能算法,将设计的货车组隶属度法和货车组指派法嵌入到两阶段算法中,提高了问题的处理效率。算例分析验证了模型和算法的有效性。针对存储点卸货效率、人工费用和无人车最大载重进行敏感性分析,结果表明,货车计划抵达时间相对集中时,提高存储点的卸货效率可以极大地减少货车在存储点的等待时间;过高或过低的单次人工费用都不会引起无人车调度方案改变,仅当单次人工费用在某个区间内变化时才会使无人车调度方案发生改变;增加无人车最大载重只能引起无人车配送费用有限地降低。

关键词: 社区配送, 无人车配送, 存储点联合调度, 两阶段模型, 启发式算法

Abstract:

With the development of smart communities, the distribution of driverless vehicles in communities has become a focus of government, operators and researchers. The joint cooperation of storage points in communities is designed to balance the the distribution of each storage point and avoid the high input cost of driverless vehicles, which means that driverless vehicles can travel between different storage points. The driverless vehicle distribution problem proposed in this paper includes the unloading subproblem and the driverless vehicle scheduling subproblem. For the unloading subproblem, the unloading scheme of vehicles at storage points is optimized with the aim of minimizing the waiting time of vehicles, and the unloading efficiency of each storage point and the maximum waiting time of vehicles are considered. For the driverless vehicle scheduling subproblem, the driverless vehicles routes are optimized with the objective of minimum distribution cost, and the maximum loading of driverlessvehicles and customer demands are considered. The two-stage model and one two-stage variable neighborhood search heuristic algorithm are designed, in addition, embedding the van group membership method and the van group assignment method into this algorithm improves the efficiency of handling this problem. The validity of the model and the algorithm is ensured by examples. For the sensitivity analysis on the unloading efficiency at the storage points, the labor cost and the maximum loading of the driverless vehicles, the results show that improving the unloading efficiency of the storage points can significantly reduce the waiting time of the vehicles when the planning arrival time of external vehicles is relatively concentrated. The change of unit labor cost at some interval will make the driverless vehicle scheduling plan change, and excessive or low unit labor cost will not do so. Increasing the maximum loading of the driverless vehicles can only reduce the delivery cost to a limited extent.

Key words: distribution in communities, driverless vehicle distribution, cooperation of storage points, two-stage model, heuristic algorithm

中图分类号: