A Batch Scheduling Model and Algorithm of Many Orders for Third Party Logistics Enterprises

摘要

Under the circumstances of many kinds of commodities and small-lot orders with different time of delivery, it is an urgent and actual need for third party logistics enterprises that mixed discrete orders are accomplished with batch operation and the beginning time for each batch operation is determined. The JIT principle is applied to the delivery service of the third party logistics enterprises to improve its quality and levels of services. When no tardiness and earliness penalties are allowed, an optimization model and algorithm of batch operation are presented. The result of an example validates the effectiveness of the method.