Review of positioning system based RFID

Radio frequency identification ( RFID) is widely used for electronic identification localization and tracking. Firstly,the authors give a brief introduction of the components of RFID and application scene,and summarize the mainstream localization algorithm and RFID localization systems that use these algorithms. Then we make comparative analysis of positioning system. Secondly,we point out the factors that affect the accuracy of positioning RFID system,and according to the current application of RFID positioning technology,they give the future development trend of it. Conclusion: compared with other positioning technology,RFID positioning has great development potential,while RFID technology is available from low frequency to the microwave,but taking into account the specific application,the key is to choose a proper working frequency for different applications.