The Optimization Research Of Cold-chain Logistics Distribution Based On The Generalized Cost

With the development of society and economy, people's life rhythm is speeding up, the demand for fresh frozen food is more and more large, the frozen food processing can develop rapidly, our cold-chain logistics distribution industry is facing unprecedented pressure and challenges. Cold-chain logistics distribution problem has become the key factors to maximize profits for distribution business.Based on the traditional time window of vehicle routing problem, systematically analyze the character of fresh frozen food distribution problems. building the model about cold chain logistics distribution path problem.During the study, fully considers the various cost factors, specifically include logistics cost (including the distribution vehicle fixed cost, transport costs and equipment energy consumed costs), penalty cost and opportunity loss cost. From the angle of cold-chain logistics distribution business, building the function to minimize the total cost.Consider the significance, this paper uses mixed time window constraint model, design optimization model of vehicle routing problem, finally through analyzing example to verify the resonableness and effectiveness of the model.