ANALYSIS AND MODELING OF THE PROTOCOL OF RADIO FREQUENCY IDENTIFICATION OF VEHICLES ON ROAD STATIONS

The purpose of this paper is to investigate the performance of the protocol of interaction between the reader and the tags. The subject of the work is automatic vehicle identification system (AVI) making use of passive ultra-high frequency radio frequency identification (UHF RFID) under EPC Class 1 Generation 2 protocol. In the thesis, protocol specifications that affect the probability of successful identification are considered and a simulation model of the communication protocol between RFID tags and the reader is given. The purpose of the thesis is the analysis and modeling of the radio frequency identification protocol standard EPC Class 1 Generation 2. During the diploma work, the EPC Class 1 Generation 2 standard was studied, which describes the technology of passive radio frequency identification, in particular, the communication protocol between tags with the reader, the anticollisional procedure for interrogating tags, access to various areas of tag memory, the reader's operating parameters, security issues. To simplify the description and logical separation of the functional presented in the standard, two levels are introduced: physical and logical. The description of these levels is given in the thesis. For the performance analysis, a model of a radio frequency identification system in Python 3 was developed. The software allows to simulate the procedure of interrogating tags and build and analyze the dependencies of the number of successfully read tags on the settings of the reader based on the model described above.