基于双层模型的医药品冷链物流中心选址研究

Research on location of Cold Chain Logistics Center Based on Bi-level Location Model

针对冷链物流中心选址问题,建立了双层成本模型。通过对医药品物流网络中物流节点的分析,归纳总结医药品冷链物流网络的特点;其次,构建了医药品冷链物流中心优化双层成本模型;最后,通过遗传算法和实际算例验证了模型的可行性。

For the location of distribution center,the bi - level location model can be established, through the analysis of the division and function of the logistics node and distribution route in the cold chain logistics network of pharmaceuticals, the characteristics of the cold chain logistics network of medicine are summarized and the difference between the cold chain logistics distribution center and the general logistics distribution center, then, based on the important nodes of the cold chain logistics network,the bi - level programming of drug cold chain logistics network optimization is constructed, finally genetic algorithm is introduced according to the model and through the example, put the proposed model and method into practice.