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农业收获运输车多车路径规划的优化研究

Optimization Study of Multi-vehicle Path Planning for Agricultural Harvesting Transporters

  • 摘要: 谷物收获后由农用运输车从分散的农田运到集中粮仓。由于谷物联合收获机进行谷物转移属于动态变化,农业运输车在规划范围内多次使用,故提高农业运输车合理调度及运输计划是保证农业运输车高效运行的重要因素。为此,将谷物联合收获机及农业运输车的田间谷物收获及运输视为具有动态卫星的两级多行程车辆路径问题,提出了混合整数线性规划模型,求解农用运输车田间多车路径规划最优解,并通过计算试验进行模型稳定性的验证。研究结果表明:模型误差较小,可以满足农业生产基本要求,研究结果可为农业生产实施最佳收获作业提供决策模型。

     

    Abstract: After grain harvesting, the agricultural transport vehicles are transported from scattered farmlands to centralized grain silos. Since grain transfer by grain combine harvester is a dynamic change, the agricultural transporter is used several times within the planning range, therefore, improving the rational scheduling and transportation planning of agricultural transporter is an important factor to ensure the efficient operation of agricultural transporter. In this study, the field grain harvesting and transportation of grain combine harvesters and agricultural transporters are considered as two-stage multi-trip vehicle path problems with dynamic satellites, and a mixed integer linear programming model is proposed to solve the optimal solution for the field multi-vehicle path planning of agricultural transporters, and the stability of the model is verified through computational tests. The results show that the model error is small and can meet the basic requirements of agricultural production, and the research results provide a decision model for implementing optimal harvesting operations in agricultural production.

     

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