Study On Impact Factors Of RFID System Performance Based C1G2 Protocol

With the increasingly widespread application of RFID technology in various industries, the performance requirement of RFID system becomes more and more demanding. Moreover, due to the working frequency and principles of UHF RFID system, there are many impact factors which degrade RFID reading performance in different scenarios. Although there are many powerful RFID reader which can provide various configuration parameters to decrease the effect caused by these impact factors. However, many RFID system deployment personnel do not understand the function of configuration parameters, so they can't take advantage of these parameters to achieve the expected reading performance efficiently. Therefore, how to enhance the reading performance of UHF RFID system as well as improve the efficiency of the implementation on site becomes an enormous challenge in RFID deployment field.From the perspective of C1G2 protocol which is most used at UHF band, this thesis studies the dependency between RFID performance impact factors and the reader configuration parameters. Also the automatic control platform for RFID reader configuration parameters is designed to improve the efficiency of implementation on site. An incremental control method is proposed based on heuristic ordering algorithm. First we define a series of impact factors according to the different application scenarios, and then we analyze the dependency between the impact factors. After that we calculate the contribution indicators for each configuration parameters and decide the operation priority accordingly. There are four levels of contribution indicators. The lower level stands for higher contribution. For the parameters which have the same contribution level, the score is calculated in order to obtain the final regulatory sequence. Through the incremental control method, the reading performance of RFID system can be improved, and the speed of the RFID deployment is also accelerated.This thesis first analyzes the on-site implementation problems of UHF RFID system, and then proposes a network hierarchy of performance impact factors based on C1G2 protocol. Through the static and mobile experimental design, this thesis studies the impact of reader configuration parameters on reading performance and determines the dependence between the impact factors of application layer and operation layer. On this basis, we propose heuristic ordering algorithm, then design the framework of automatic control platform for reader configuration parameters as well as analyze the workflow of key modules. Finally we verify the effectiveness of automatic control algorithm through experiments.