Logistics distribution path optimization method by considering traffic conditions and double time windows
A technology of logistics distribution and traffic conditions, applied in the field of logistics management, can solve problems such as increasing logistics distribution costs, affecting customer satisfaction, and difficulty in meeting dual time windows
Active Publication Date: 2020-07-24
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
Especially in the period of poor road conditions, it not only reduces the efficiency of logistics distribution and increases the cost of logistics distribution, but also makes it more difficult to meet the double time window required by customers, thus affecting customer satisfaction
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Embodiment
[0086] In this embodiment, a multi-objective path planning model is constructed with the goal of minimizing the delivery cost and maximizing customer satisfaction, and obtaining the optimal delivery path. Based on the current secondary logistics distribution model, the logistics distribution path includes a primary distribution path from the distribution center to several transfer stations and a secondary distribution path from each transfer station to several demand points. The first-level distribution route is completed by the first-level vehicles, and the second-level distribution route is completed by the second-level vehicles. This embodiment considers the general vehicle routing problem: there are several transfer stations and demand points, and there is only one distribution center in this area, and the following assumptions are made:
[0087] (2.1) The distribution vehicles of the same level have the same model and sufficient vehicles;
[0088] (2.2) Level-1 vehicles ...
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The invention discloses a logistics distribution path optimization method by considering traffic conditions and double time windows. A logistics distribution path comprises a first-level distributionpath from a distribution center to a plurality of transfer stations and a second-level distribution path from each transfer station to a plurality of demand points. The method includes: based on a current secondary logistics distribution mode, establishing a logistics distribution model with double time windows under a traffic condition; solving the model by using the hybrid firework algorithm, generating the initial population through the insertion algorithm in the solving process, and updating the individuals through the crossover operation and the explosion operation, so that the optimizedlogistics distribution path can be obtained in a short time, and the effectiveness and the rationality of the logistics distribution path are greatly improved.
Description
technical field [0001] The invention belongs to the technical field of logistics management, and relates to logistics distribution route planning and vehicle scheduling, in particular to establishing a logistics distribution model with dual time windows under traffic conditions with the goal of maximizing customer satisfaction and minimizing distribution costs, and using a mixed fireworks Algorithm processing to obtain a reasonable logistics distribution plan. Background technique [0002] With the development of e-commerce, logistics plays an important role in people's daily life. In the process of logistics distribution, in order to avoid other factors such as large vehicles entering the city and causing damage and unnecessary waste of resources, logistics companies generally adopt a secondary logistics distribution model, in which large vehicles transport goods to various suburban transfer stations, and then small trucks to transport the goods from the transfer station t...
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IPC IPC(8): G06Q10/04G06Q10/08G06N3/00
CPCG06Q10/047G06Q10/08355G06N3/006
Inventor 张敏熊国文张训杰李贤均
Owner SOUTHWEST JIAOTONG UNIV