关键词: 射频识别（RFID）, 车联网, 交通流检测, 物联网

Abstract: RFID technology will be applied to the detection of traffic flow. This paper introduces the theory and the structure of the Internet of vehicles which uses RFID technology, analyzes the parameter selection problems, system design problems and adjacent channel interference problems, proposes the corresponding solutions as well. This paper gives the detection model based on set theory. This paper analyzes how to detect the density, traffic volume, space mean speed, selection probability, road travel time and road delay time. Because of the RFID technology, road travel time, road delay time and selection probability which is newly proposed turn into measurable parameters. This paper provides the detection models and formulas of these parameters as well. This paper designs two simulation experiments to test and verity the correctness and the feasibility of the detection models. This paper provides a sufficient theory of Internet of vehicles.

Key words: Radio Frequency Identification（RFID）, Internet of vehicles, detection of traffic flow, Internet of things