| As some e-commerce giants step into fresh goods areas,most of people pay attention to e-commerce of fresh agricultural products.Due to the difference between fresh food and ordinary goods in nature,the original modes like B2C,C2C are no longer suitable for fresh food.O2O mode about the fresh agricultural products is thought to be promising.However,the existing e-commerce companies about fresh food are faced with high distribution cost.Because the fresh goods need cold chain transportation,the supply chain and the transport distance is shorter, the cost is less.It is necessary to explore the optimization distribution route.Research on these issues have a general theoretical research significance and practical value,especially meet the urgent needs of e-commerce companies about fresh agricultural products delivery now.This paper emphatically introduces the distribution mode of 020 for fresh goods,and analyzes their advantages and disadvantages. This paper also analyzes the reasons why fresh agricultural products distribution costs highly and draw the conclusion that the two key factors are supply chain and distribution route.Compared to the traditional supply chain and combined with O2O’s characteristics,this paper put forward a new distribution model from the farm to table.The first-order mathematical logic is used on the modeling description of the problem.The model considers the time window of orders,mileage.Because the problem is a typical np-hard problem,natural constraint language(NCL)is adopted to solve the problem,which is the syntax of mathematical logic.Minimum degree of relaxation and sequential rules of NCL is designed;solving method is based on dictionary order.Through specific examples,the method to solve the model is verified.The results show that within the prescribed time,the NCL rules can effectively and efficiently solve the distribution route problem.The method can provide some guidance for e-commerce companies to distribute offline at the least cost. |
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