The Location Research On Distribution Center Of Fresh Products Under The Line Of E-commerce

Under the background of “Internet +” policy support,the fresh e-commerce have been developed vigorously in our country,which form the pattern of two big electronic platform,nine vertical electric business,and many small electric companies.Due to fresh food is easy to be corrupted and has a short preservation period and high costs for long-distance cold chain transport,the fresh are losing money for a long time,which is not conducive to the long-term development of fresh industry;In addition,with the improvement of living standards,people have increased the requirements for the freshness of fresh food gradually,which also requires e-commerce to enhance the timeliness of fresh delivery.Distribution center is nodes and intermediate hub of the distribution system of logistics.In order to short the transport time and reduce the damaged rate of the fresh,the choice of the location of the distribution center plays a decisive role in fresh products delivery rate.Therefore,the research on location of the distribution center of “Fresh” circle has an important practical significance and scientific value.Firstly,we have combed the theory of the selection of distribution center location,including the distribution center concept,the main type,and the operation mode.Then we have analyzed the principle,influence factors and site selection program of the fresh distribution center site selection.On the basis of the present situation,we have introduced two methods of site selection as follows: single distribution center location method and multi-distribution center location method,which can provide reference for the fresh distribution center location.Finally,this paper summarizes the theory of fresh demand forecasting,including the role,principle and method,and introduces the gray forecasting model,which provides the basis for forecasting the fresh demand in the area.Secondly,based on the study of the location of fresh food distribution centers at home and abroad,we have put forward to build the model of “fresh circle” distribution center according to the difference of fresh food and other products.We have refined the previous model and improved the rationality and practicality of the fresh distribution center location.By using genetic algorithm to solve the location problem,we introduce the principle,basic elements and operation steps of the algorithm,and design the algorithm of distribution center location.Thirdly,we apply of the distribution center location model by using Taiyuan city as an example,and the gray forecasting model is used to predict the fresh demand in the residential area according to the development of Taiyuan city.Based on the demand,we have selected the supplier of fresh distribution center in Taiyuan city.The candidate points are determined by using the investigation and the preliminary expert evaluation.The model is solved by genetic algorithm to obtain the optimal selection point,and then we can get the minimum sum costs of fixed,transportation and loss costs.Finally,we have analyzed the sensitivity of the parameters in the location model and evaluated the results of the site selection to determine the scientific and rationality of model.