Research On The Key Technology Of Logistics Management Information System Based On Web

The focus of this thesis is on the characteristics of logistics management information system.Workflow technology and RFID(Radio Frequency Identification)technology are applied to the logistics management information system,and the Web-based logistics management information system is designed and realized.Workflow technology mainly focuses on organization and coordination,capable of achieving integration of Web services in distributed environment.RFID technology can realize the efficient collection of information in the logistics system.On the one hand,the system applies the workflow technology to achieve its aim of efficient handling of business processes in logistics operations and then realizes the integration of logistics activities in the Internet environment by means of combination calls of various types of functional services.On the other hand,the system uses the RFID technology to realize information collection in the process of goods storage,inventory and distribution.To resolve the tag collision problem in the RFID technology,AGHMA(Adaptive Grouping Hybrid Multi-tree Anti-collision)algorithm is proposed.Efficient label identification is realized by adopting grouping strategy and optimization of search prefixes,and by employing the search method of continuous adaptive adjustments for binary tree,quadtree or octree in accordance with the collision factors.The results of simulation experiments indicate that the AGHMA algorithm has improved in time complexity,throughput rate and communication complexity,compared with adaptive binary-tree and quad-tree anti-collision algorithm and the CT(collision tree protocol)algorithm.Further test of the implemented system shows that this system can satisfy the requirements in terms of function and performance.