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Multi-stage dynamic vehicle routing optimization method for fresh agricultural products in different regions

A vehicle route and optimization method technology, applied in the field of fresh agricultural product distribution, can solve problems such as high cost and slow distribution efficiency, achieve the effect of reducing state space and improving problem solving efficiency

Inactive Publication Date: 2021-11-12
EAST CHINA UNIV OF SCI & TECH
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  • Abstract
  • Description
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for optimizing the route of dynamic vehicles for fresh agricultural products in different regions and stages, so as to solve the problems of slow delivery efficiency and high cost of dynamic vehicles for fresh agricultural products

Method used

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  • Multi-stage dynamic vehicle routing optimization method for fresh agricultural products in different regions
  • Multi-stage dynamic vehicle routing optimization method for fresh agricultural products in different regions
  • Multi-stage dynamic vehicle routing optimization method for fresh agricultural products in different regions

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Embodiment

[0035] Embodiment: A method for dynamic vehicle route optimization of fresh agricultural products in sub-regions and multi-stages, comprising the following steps,

[0036] S1) Acquire data, including the total number of vehicles, vehicle capacity, fixed vehicle speed, maximum driving distance of vehicles, initial freshness value and arrival freshness value of each product that do not meet the required freshness value or the unit penalty caused by the freshness threshold Cost and order data, where the order data includes initial order data, new order data and the location of the order site. For the multi-regional and multi-stage dynamic vehicle route optimization problem for fresh agricultural products, it can be defined as follows: to ensure that the demand of each order is met and not exceed the maximum load capacity and maximum driving distance of the delivery vehicle, considering the vehicle’s violation of the time window limit and freshness In the case of limiting the addi...

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Abstract

The invention discloses a dynamic vehicle route optimization method for fresh agricultural products divided into regions and multi-stages, which comprises the following steps: acquiring data; dividing regions; dividing time periods; designing freshness attenuation functions; minimizing the total distribution cost mathematical model; and minimizing the total distribution cost Mathematical model algorithm design; minimum distribution total cost mathematical model solution; the present invention effectively improves distribution efficiency and reduces distribution total cost, and has high practical significance.

Description

technical field [0001] The invention relates to the fields of distribution of fresh agricultural products and the like, in particular to a method for optimizing dynamic vehicle routes of fresh agricultural products in different regions and in multiple stages. Background technique [0002] In recent years, with the adjustment of agricultural structure and the continuous improvement of residents' consumption level, people's demand for fresh agricultural products has become higher and higher, which has accelerated the development of logistics enterprises to a certain extent, but the loss in the distribution process is still very serious. At the China Modern Agriculture Investment and Financing Summit held in Beijing in 2012, according to relevant experts from the Bureau of Agriculture, the loss of my country's agricultural products during the transportation and distribution process is astonishing, and the loss rate of grain, vegetables, and fruits during the transportation and d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/08G06N3/12
CPCG06N3/126G06Q10/047G06Q10/08355
Inventor 范体军杨霞程方正易建军顾春华刘金瑞
Owner EAST CHINA UNIV OF SCI & TECH
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