Based Middleware Edge Server Rfid Technology Research And Application

Radio Frequency Identification(RFID) which identify objects automatically with the radio, is the fastest-growing automatic identification technology in the past decade. RFID is a flow control technology for the manufacturing, logistics, retail and wholesale supply chain to provide strategic value-added, so its market prospects looks good.With the severe competition round market and the rapid development of information market, more and more enterprise applications will make use of Middleware technology. Middleware gradually becomes the important base to the enterprise applications and the pivotal platform to the complex distributed enterprise applications. The RFID middleware which shields the RFID equipment multiplicity and the complexity, can provide the formidable support for the backstage operational channel, enable its function to obtain maximum limit the display. Therefore, it has already become the recent information gathering system based on the middleware radio frequency recognition system the leadership.Uniting RFID and the intelligent transportation (ITS) bring Electronic Toll Collection System (ETC). ETC involves the transportation infrastructure investment the recycling, also is alleviates toll station traffic jam "bottleneck" the effective method, reduced the environmental pollution, therefore many countries invest ETC as its domain the application system to develop firstly. Our country traffic department already lists ETC as the project which our country ITS domain first started, and key included transportation science and technical innovation one of the tenth five-year plan.Revolving the RFID technology basing on middleware, this article research and the analysis the RFID technology and the middleware these two big core support technology carefully, then realizes ETC with detailing elaboration foundation Edge Server.The main work, key technologies and my researches are followed:1. With consulting the RFID technology correlation informaiton, traces the reason and developing process of the RFID technology; Introduces the RFID technology concept, product superiority, classification, present application, standard, policy, industrial chain constitution and so on. Elaborates the RFID technology basic principle of work; analyzes the RFID system composition, elaborates read-write and the electronic label principle of work, the composition, the classification in detail, and so on.2. Studying the RFID system essential technology thoroughly, elaborating multi-labels distinguishing simultaneously and the system dash technology based on the time-sharing multichannel method emphatically, the data encryption technology based on exported key, the communication in series based on the document flows method, and so on; and has pointed out its general application scope.3. Elaborating the RFID middleware concept, the classification, the characteristic, the work mechanism, the development tendency, the function and its the system structure Comprehensively. Analyzing the expandable concept of edge and integrated level in its cores structure thoroughly.4. Studying the Oracle Corporation's RFID middleware Edge Server concept, principle, system structure, composition module thoroughly carefully. Narrating the EPCgloabal thing networking concept in the principle emphatically; studying the data event distribution module based on Streams/AQ flow in the composition module, the drive module, the filter module and the expansion document module four core structures thoroughly. Then, under analyzing Edge Server structure foundation, elaborates Edge Server deployment steps of general RDID system in expansion document module and the graph disposition Edge Server way. 5. Narrating ETC system concept, the significance, the work principle, the essential technology, the system composition. With elaborating the ETC system essential technology and composition, analyzing the ETC system essential equipment deployment thoroughly, Edge Server application in ETC and the traffic lane application software work flow; Finally, elaborating the data encryption technology system flow to realize "one card one key".6. Based on above analysis and research, this article realized ETC system, its essential technology and innovation are followed:1) RFID application in the highway, realizing ETC, exempting cash, exempting looking redeem, settles accounts, currency electron with the bank networking, the unimpeded highly effective intellectualized charge management. Solving traffic jam, resources waste, air pollution as well as the fund which because stopping pays fee producing out of control and so on, The system is suitable for the highway, the city speedway, the federal highway.2) Edge Server is the system based on open construction, modulation, promoted data processing. it will be the EPCglobal's nervous, a construction of enterprise general management RFTD label data. Edge Server mainly process the information and event from the reader, is the link-node between reader and enterprise application. Mainly includes filtering label data, grouping, counting, against wrong reads and against leaks reads and so on. in ETC system.3) Disposition document and data storage based on XML completely, causing the system to be separated from the concrete operation platform, enhanced the software independence and visit speed, effective reduced the software implementation cost.4) The data encryption technology based on exported key use 3-DES encryption algorithm. First, reader reads RFID label's ID; then, reader through security module (SAM), uses primary control key to calculate the label's special key. Realizing the "one card one key" request, providing the redundant reliable safe visit technology for the system.5) The communication method based on the Streams/AQ stream, provides the most vigorous and nimble data transfering way for equipment, middleware, database and application.6) Calling the dynamic storehouse, the Com module technology through the JNI way, causes most equipment drivers which written by VC /C /C to transform slightly can melt well into as the ETC system based on Edge Server.At present, this ETC system has already been used in the Shijiazhuang partial high speed roads charge station, and running stably.The author has pulished two paper in the core journals《Journal of System Simulation》and《Application Research Of Computers》in school.