基于超高频RFID的GPS信息采集系统

System of Collecting GPS Information Based on UHF RFID

为了有效缓解城市交通拥堵,实现智能交通诱导,需要实时采集车辆动态GPS信息.传统的基于无线传感网络的车辆GPS信息采集系统在城市复杂电磁环境的干扰下,系统性能不稳定,难于保证实时性和可靠性要求.本文提出了一种基于超高频RFID技术的城市道路环境下车辆GPS信息采集系统设计方案.该系统利用超高频RFID技术替代传统的无线传感网技术,针对移动车辆实现了非接触式快速GPS信息采集和处理.首先介绍了基于超高频RFID的GPS信息采集系统的硬件及软件设计方案,并构建了针对该系统的仿真实验环境.仿真结果表明,该系统性能良好,能够满足实际要求.

In order to alleviate the urban traffic congestion effectively and realize the intelligent traffic guidance, it needs to obtain vehicle＇s dynamic GPS information real-time. The traditional vehicle GPS information collection system is based on wireless sensor network. Because of the interference in urban＇s complex electronmagnetic environment, its system performance is not stable and it＇s difficult to guarantee the real-time and reliablility. This paper puts forward a kind of design which based on UHF RFID technology, it can collect the vehicle GPS information under the environment of urban. This system uses the UHF RFID technology to replace the traditional wireless sensor network, it can collect and process the mobile vehicle＇s GPS information fastly with non-contact. Fistly, this paper introduces the system＇s hardware and software design, and then build a simulation environment for the system. At last we do some simulation experiments, the simulation results show that the system performance is good and can satisfy the practical requirements.