Quickly Identify System Based On Rfid Research

RFID (Radio Frequency Identification) is an automatic identification technologyusing radio frequency signals to communicate. Because of its advantages such asnon-touching，anti-interference ability and so on，it has been widely applied，and alsocan develop very fast. With the development of society, RFID technology will be usedin fast-moving environment.The two key technologies of the Doppler frequency shiftfast track and multi-tag anti-collision algorithms in the fast recognition system based onRFID are the hottest points in RFID research.In the environment of high-speed mobile Doppler shift in frequency, this articlehas been the costas carrier synchronization law to achieve the fast track carrier.Afterwards, the paper has carried on the modeling and simulation to the carriersynchronization loop using the MATLAB simulation tool.And we have written VerilogHDL code using QuartusII development software to realize the FPGA implementationof RFID transmitter and receiver. Thus it has verified the correctness and the reliabilityof the system. It has a good value of engineering application.In this paper, firstly research the anti-collision algorithm has been focused on. Ahigh performance anti-collision algorithm, jumping binary tree-like anti-collisionalgorithm, was designed using Verilog HDL and was simulated with FPGA as well.Theoretic analysis and simulation results have proved that the efficiency and the speedof this anti-collision algorithm are well.