Study On Logistics Information System In Modern Enterprises

Analysis, design and development scheme of logistics information system in modern enterprises are investigated.Problems such as inventory control, logistics vehicle routing and logistics center choice, which should be solved in logistics information system are discussed in detail.Primary work and creative points are as follows:1. Procedure of system analysis is given, particular investigation content in logistics information system is identified logistics management information subsystem, production management subsystem and financial management information process in producing enterprises are analyzed in detail. Entity relationship model and transformation are discussed, requirement and procedure in system network design are given.Hardware and network environment are construed. Example for manufacture logistics information system design has been studied. Method and form of system development have been briefly introduced. Structure, block and advantages of Baogong logistics information system are assayed.2. Inventory model about deteriorating goods has been discussed and expanded, in which shortage is allowed. Based on earlier temperory cost discount inventory models,an approach to find optimal temporary order strategy is provided, while considering deteriorating effects on order strategy.EOQ formula has been extended under the finite service rate,i.e. every client has a course for service.corresponding model has been verified.A special multinomial to approach seasonal good requirement is utilized, a simple decision means has been proposed to seek optimal seasonal order strategy,according to dynamic planning principle, an instance for this model is demonstrated.3. Mathematics model based on straight discription for logistics vehicle routing without time limit has been established, hill-climbing algorithm for LVR has been designed and implemented. Simulated annealing algorithm for LVR has also design and carried out. Instance for simulated annealing algorithm shows the fine performance and strong robustness has been validated.A mixing algorithm with cluster-analysis and genetic algorithm has been put forward in order to provide a reference to further study on logistics optimal scheduling problems.4. Relationship between overall expense and delivery core number is agrued.An equation for broader use has been acquired, and a facility mode is constructed considering optimal inventory cost. For multi-facilities choice problem, a optimal feasible scheme has been got using AHP.