Design Of AS3992Reader And Study Of RFID Indoor Positioning Algorithm

RFID(Radio Frequency Identification， RFID)is non-contact automaticidentification technology that is realized by means of radio frequencycommunications. With radio frequency signals, RFID can automatically identifytargets and acquire relative information, and complete the information processingwithout manual operation. It has some advantages such as simple and quick operation,long identification distance and fast data rate. It could be widely used in various fieldsof society with the advantages of difficult to forge and high intelligence.This dissertation introduces a design of915MHz RFID reader based on EPCGen2standard protocol and the RFID indoor positioning algorithm. It includes:1.Deeply analyze the EPC Gen2standard technical characteristics，study theprinciples and basic structure of UHF RFID reader system，discusses the entire systemcommunication link propagation in detail．2. The main factors affecting RFID indoor positioning algorithm is analyzed, andthe RFID indoor positioning algorithm is designed;3. Analyze and design the hardware circuits of the reader．MCU uses C8051F340and the RF chip uses AS3992．Complete the welding and the testing of hardwarecircuits．3. RFID indoor positioning algorithm and hardware system are debugged. Theresult meets the EPC Gen2standard requirements．The system realizes thebasic function of EPC Gen2and RFID indoor position．...