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唐静,孟祥虎,黄文,等. 货物关联性和优先级约束下的多目标异构AGV调度问题研究[J]. 安徽工业大学学报(自然科学版),xxxx,x(x):x-xx. DOI: 10.12415/j.issn.1671-7872.24115
引用本文: 唐静,孟祥虎,黄文,等. 货物关联性和优先级约束下的多目标异构AGV调度问题研究[J]. 安徽工业大学学报(自然科学版),xxxx,x(x):x-xx. DOI: 10.12415/j.issn.1671-7872.24115
TANG Jing, MENG Xianghu, HUANG Wen, GAO Wei. Research on Multi-objective Scheduling Problem of Heterogeneous AGVs with Cargo Correlation and Priority[J]. Journal of Anhui University of Technology(Natural Science). DOI: 10.12415/j.issn.1671-7872.24115
Citation: TANG Jing, MENG Xianghu, HUANG Wen, GAO Wei. Research on Multi-objective Scheduling Problem of Heterogeneous AGVs with Cargo Correlation and Priority[J]. Journal of Anhui University of Technology(Natural Science). DOI: 10.12415/j.issn.1671-7872.24115

货物关联性和优先级约束下的多目标异构AGV调度问题研究

Research on Multi-objective Scheduling Problem of Heterogeneous AGVs with Cargo Correlation and Priority

  • 摘要: 结合货物关联性与优先级,考虑违约成本、客户信誉度、拣选时间要求、货物需求量及客户等级等作为货物优先级因素建立数学模型,描述带有货物关联性与货物优先级约束的复杂多目标异构自动引导车 (AGV)调度问题(MOSPHA-CP),提出1种改进的混合变邻域搜索算法(hybrid variable neighborhood search,HVNS)对模型进行求解。结合两阶段聚类和随机成本最优机制产生较好的初始解,设计具有关联性破坏重组机制对算法进行邻域扰动,避免算法过早收敛;结合多种邻域变换操作执行全局搜索,获得更优质的可行解。采用改进的HVNS算法与IACO,GAVNS算法进行仿真实验,且从求解质量、收敛性、帕累托前沿等指标进行性能对比分析,验证改进算法求解MOSPHA-CP问题的有效性。结果表明:改进的HVNS与其他算法相比在解质量上有效提升30%~40%的性能,收敛性和帕累托前沿指标也显著优于对比算法,其是1种求解MOSPHA-CP的有效方法。

     

    Abstract: To address the complex multi-objective heterogeneous autonomous guided vehicle (AGV) scheduling problem (MOSPHA-CP) with constraints related to cargo association and cargo priority, a mathematical model was established considering factors such as default costs, customer reputation, picking time requirements, quantity of cargo required, and customer levels. An improved hybrid variable neighborhood search (HVNS) algorithm was proposed to solve this problem.The HVNS algorithm generated a better initial solution by combining a two-stage clustering approach with a stochastic cost-optimal mechanism. A relevance-based disruption and reorganization mechanism was designed to perform neighborhood perturbations and prevente the algorithm from premature convergence. Multiple neighborhood transformation operations were employed to execute a global search, aiming to obtain higher-quality feasible solutions. The improved HVNS algorithm and IACO and GAVNS algorithms were employed to conduct simulation experiments, and performance indicators such as solving speed, solution quality, and Pareto front were compared and analyzed to verify the effectiveness of the improved algorithm in solving MOSPHA-CP problems. The results show that the improved HVNS algorithm can effectively improve the performance of solution quality by 30%-40% compared to other algorithms, and its convergence and Pareto front indicators are significantly better than those of the compared algorithms. It is an effective method for solving the MOSPHA-CP.

     

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