Research On The Optimization Of The Distribution Path Of The Third-party Pharmaceutical Logistics

At present,with the rapid development of China's pharmaceutical industry,the demand for drugs and the research and development of new drugs are increasing day by day.However,the development of the corresponding pharmaceutical distribution field is relatively slow.The pharmaceutical logistics and distribution link in the pharmaceutical distribution field is often criticized by everyone.At present,pharmaceutical logistics is mainly carried out by suppliers,but pharmaceutical suppliers are not professional logistics companies,and their core business is not in the logistics carriers,which results in three problems: high damage rate of pharmaceutical distribution,long time of pharmaceutical distribution and high cost of pharmaceutical distribution.In recent years,the third-party logistics enterprises in China are becoming more and more powerful and eager to develop new markets due to fierce competition.At the same time,with the continuous deepening of medical reform,the opening degree of medical logistics is increasing.The policy allows the third-party logistics to enter the medical logistics market to improve and improve the distribution service of medical logistics.It also benefits from this.Based on this policy,this paper proposes to solve the current problems of medical logistics by introducing more professional third-party logistics.Because the third-party logistics has professional logistics technology and equipment,it can guarantee the quality of drugs,improve the efficiency of logistics distribution and reduce the cost of distribution.In the logistics distribution,the most critical link is the path of logistics distribution.The length of distribution path directly determines the time and cost of distribution.Therefore,this paper will design the optimization model of refrigerated vehicle path for the third-party logistics enterprises to reduce the distribution cost and time.In order to better study the vehicle path optimization of the third-party pharmaceutical logistics,firstly,the current stage of pharmaceutical logistics,the third-party logistics,vehicle path optimization issues are combed.After that,it elaborates the current situation of the pharmaceutical logistics field,points out threeproblems of the current pharmaceutical logistics,and proposes to solve the problems of the current pharmaceutical logistics through the third-party logistics company.Next,the third-party logistics company s is discussed.S company has advanced medical logistics equipment,which can reduce the damage rate of medical logistics in the process of distribution.But at present,the medical logistics service of S company is not in place,and the distribution route is not optimal,so we need to optimize the route.At the same time,the third party logistics should provide services for the whole pharmaceutical logistics supply chain and further expand the market.After that,the most important path optimization problem is solved.Through the analysis,a vehicle path optimization model with single distribution center,single vehicle type and soft time window is established to reduce the distribution cost and distribution time,which is solved by genetic algorithm.Then the correctness and feasibility of the model are verified by an example,and the vehicle path optimization problem to be solved by s company is solved,and suggestions are put forward for s company.At last,the paper makes a summary and Prospect of the research content and puts forward the shortcomings.