Analysis And Research Of Data Transmission Technology In RFID System

Following computers and the Internet, Internet of Things (IOT) is nowconsidered as the third wave of information revolution and the next stage of ITindustry. As the key technology of IoT, the development of Radio FrequencyIdentification (RFID) has got more and more attention. RFID is a non-contactautomatic identification technology, which is widely used in data acquisition, goodsidentification, goods tracking, products anti-counterfeiting and other fields. Readeris a device that reads/writes tag information. It plays an important role in a RFIDsystem.This thesis accomplishes a systematic research on the system structure ofRFID, function of each part, working principle, as well as different ways ofclassification. Also go deep into the protocols of ISO/IEC18000-6Type-A, Type-Band Type-C, compare these protocols, and design a system framework diagram of areader based on ISO/IEC18000-6Type-C protocol. Then design of a basebandcodec module of the framework, which is divided into two parts: a sending end linkand a receiving end link. A sending end link includes Cyclic Redundancy Check(CRC) module and PIE codec module and a receiving end link includes CRCmodule and FM0decodec module. Every module has been analyzed on functionsimulation to show that the design meets the requirements of the protocol well.Finally research anti-collision algorithm, analyze many basic representativealgorithms, include of ALOHA and Binary Search types. Based on this, animproved regressive-style binary search algorithm is present. The simulationresults show that the algorithm can reduce transmission work and search times.Eventually, it would improve the search efficiency.