Research On Optimization Of Cold Chain Logistics Distribution Path Of Fresh Agricultural Products From Green Perspective

In recent years,the rapid development of cold chain logistics in China has driven the development of market economy,but it has also caused some negative impacts on the environment.Therefore,China vigorously advocates the development of green logistics.From the perspective of green logistics,this paper combines green logistics,cold chain logistics and vehicle route optimization to conduct research.Through the construction of a mathematical model from the green perspective,the research on the optimization of the distribution path of cold chain logistics can not only reduce the pollutant emission in the process of cold chain logistics distribution,but also reduce the distribution cost of cold chain logistics enterprises.Firstly,this paper analyzes the concept and characteristics of cold chain logistics.In order to evaluate the negative impact of cold chain logistics on the environment,the green parameter system in the process of cold chain logistics distribution is established,and the calculation model of fuel consumption,refrigerant consumption and pollutant emission of truck is given quantitatively.Then,the optimization model of cold chain logistics distribution path of fresh agricultural products from the green perspective is constructed.From the perspective of resource saving and environment friendly,this paper analyzes the cost of cold chain logistics distribution process,including the use cost of truck,transportation energy consumption cost,refrigeration cost,time penalty cost and pollutant emission cost.Among them,pollution emission cost includes gas pollutant emission cost and solid liquid pollutant emission cost.On this basis,the optimization model of cold chain logistics distribution path with the minimum comprehensive cost as the objective function is built.Finally,a two-stage algorithm of K-means clustering and improved simulated annealing algorithm is designed to solve the model.The actual cases were compared and analyzed to optimize the distribution path from the green perspective and without considering the green perspective.Through Matlab simulation,it was concluded that the optimization scheme of the cold chain logistics distribution path from the green perspective could effectively control the logistics distribution cost,which verified the effectiveness of the model and algorithm.