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KEYWORDS
Ant colony algorithm,
Agricultural products,
Distribution,
Route optimization
ABSTRACT
Distribution of agricultural products, especially the excessive losses in the process of transport was the important issues that hampered the development agriculture in China. So this article proposed reasonable hypothesis and constraint conditions of agricultural products' logistics distribution math model by combined with agricultural products logistics characters about its easily corrupt and change quality. Then the article used ant colony algorithm method to construct the optimal model of distribution route for agricultural products. Finally, the paper confirmed this model and the algorithm validity through the example. The results showed that we will greatly shorten the distance of distribution, saving the cost of distribution with ant colony algorithm when we make the scheme of the agricultural product logistics distribution routes.
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(ProQuest: ... denotes formulae omitted.)
1 Introduction
China is a large agricultural country, which the variety of agricultural products is rich; the flow of agricultural products logistics is larger. But most agricultural products have perishable nature, high requiring level of fresh and short freshness date characteristics. On the other hand, agricultural products generally have a strong seasonal nature. As the limitations of a variety of environments, it makes the imbalance of agricultural goods. Therefore, the logistics of agricultural products become more important. However, the most critical issue in logistics of agricultural products is distribution. Due to the unique characteristics of agricultural products cause the differences between the distribution of agricultural products and general logistics distribution. Firstly, the contradiction between supply and demand of agricultural products creates that accurate information of supply and demand is difficult to grasp which cannot adjust in time and resulting in distribution of agricultural products with greater risk. Secondly, the distribution of agricultural products requires high quality. Most agricultural products have the perishable nature, which requires various measures in the distribution process. Thirdly, agricultural products, especially fresh food in the process of transport will accelerate the devaluation, although raising the level of transport can reduce the depreciation rate and not completely eliminated. Therefore, how to reduce transportation costs, optimize the delivery path, have been the research focus to many experts and scholars. Ant colony algorithm strives to develop the optimal solution and find a balance...