Authors

Abstract

With the development of the economy and society and the improvement of living standards, the demand for fresh products is increasing, and the huge demand has driven the rapid growth of fresh products in China. However, fresh products are prone to spoilage and wear, and higher transportation requirements are put forward to ensure product quality. Based on this, the transportation function of cold chain logistics vehicles on farm products cold chain logistics greatly improves the cold chain transportation efficiency of agricultural products. Aiming at the vehicle path problem of cold chain logistics distribution and under multiple refrigerated trucks, a single distribution center, and multiple commodity types, a path optimization model of cold chain logistics vehicles was established with the optimal evaluation of total distribution cost and distribution vehicles as the objective considering the economy, greenness, and sustainability of vehicles. Then, an evaluation index system of refrigerated trucks consisting of cost index, environmental index and quality index was established, an AHP-TOPSIS (Analytic Hierarchy Process, Technique for Order Preference by Similarity to an Ideal Solution) evaluation model of refrigerated trucks was constructed, and the comprehensive evaluation value of refrigerated trucks was obtained. On the basis of vehicle evaluation results, the corresponding vehicle path optimization model of agricultural cold chain logistics was established, the large-scale neighborhood search SA algorithm was designed to solve an example, and the optimization model was compared with the optimization model without considering vehicle evaluation. The experimental results show that considering the vehicle evaluation factors can effectively reduce the distribution cost, and increasing the vehicle evaluation weight can effectively improve the greenness and sustainability of the distribution fleet.

Abstract in Chinese

随着经济社会的发展和生活水平的提高，人们对生鲜产品的需求量越来越大，巨大的需求量推动了中国生鲜产品的快速增长。然而生鲜产品具有易腐易损性，为了保证产品的品质对运输提出了更高的要求。基于此，冷链物流车辆对农场品冷链物流的运输作用大大提升了农产品冷链运输效率。针对冷链物流配送的车辆路线问题，在多冷藏车、单配送中心、多商品类型的条件下，考虑车辆的经济性、绿色与可持续性，以配送总成本和配送车辆的最优评价为目标，建立冷链物流车辆路线优化模型，建立由成本指标、环境指标和质量指标组成的冷藏车评价指标体系，构建AHP-TOPSIS法的冷藏车评价模型，得到了综合考虑的冷藏车评价值。在车辆评价结果的基础上，建立相应的农业冷链物流车辆路线优化模型，设计改进蚁群算法求解算例，并将优化模型与不考虑车辆评价的优化模型进行比较。实验结果验证，考虑车辆评价因素可以有效降低配送成本，增加车辆评价权重可以有效提高配送车队的绿色和可持续性。