Location-Routing Problem Of Cold Chain Distribution For Fresh Agricultural Products Considering Carbon Trading

The output of fresh agricultural products in China is increasing year by year,and with the improvement of people's living standards,the sales of fresh agricultural products are also increasing,and people pay more attention to the freshness and safety of fresh agricultural products,which brings great opportunities to the development of cold chain.Our government has gradually improved the relevant policies and laws of cold chain,which provides a good policy environment for the development of cold chain.At the same time,compared with normal temperature logistics,because of the high energy consumption and high emissions of cold chain,carbon emissions in cold chain have become a concern.China has initially set up a carbon trading market,using the advantages of market mechanism to urge enterprises to reduce emissions.In this context,considering the relationship between location problem and vehicle routing problem,the joint location-routing optimization problem of fresh agricultural products cold chain distribution considering carbon trading mechanism is proposed.Firstly,this dissertation analyses the research status of location-routing problem of fresh agricultural products cold chain distribution considering carbon trading mechanism at home and abroad,summarizes the existing research,verifies the innovative type of this dissertation,and summarizes the basic theory of location-routing problem of fresh agricultural products cold chain distribution considering carbon trading mechanism through existing research.This dissertation mainly analyses the process of cold chain,the characteristics of cold chain of fresh agricultural products,the principle and characteristics of carbon trading,the calculation method of carbon emissions and the influencing factors of location-path problem of cold chain distribution of fresh agricultural products considering carbon trading,which provides a theoretical basis for modeling.Secondly,this dissertation combines the location problem with vehicle routing problem of cold chain distribution,and carries out joint optimization.Carbon trading mechanism is introduced into the traditional location-routing problem of cold chain,so that enterprises can obtain economic benefits while taking into account social benefits.The research object of this dissertation is fresh agricultural products,so considering the perishability of fresh agricultural products,the deterioration rate of fresh agricultural products is taken into account in the process of building the model,and the difference between the deterioration rate when the door opens and when the door closes is taken into account to make the model closer to the reality.In order to solve the model,a GASAA is designed in this dissertation.Firstly,the encoding method of the algorithm is improved,and the overall idea is adopted to optimize the algorithm so as to make the result more accurate.Finally,this dissertation takes DF enterprise as an example to analyze.The actual operation data collected from enterprises are processed and programmed with MATLAB,which verifies the validity of the model and algorithm.Through the analysis of the results,we can get the management inspiration of enterprises.In addition,this dissertation conducts sensitivity analysis on carbon trading price,carbon trading quota and deterioration rate,and puts forward management suggestions,which provides a basis for enterprises to solve Location-Routing Problem of cold chain distribution of fresh agricultural products.There are 19 tables,28 figures and 70 references in this dissertation.