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针对电子收费(ETC)系统存在的无线损耗较大、路径识别难度高、充值点较少等问题,设计了一套基于OBU接收机与NFC充值的电子收费系统。对ETC系统信道传播损耗进行评估,并使用具备可快速唤醒的高速数据和优化功能的OBU设备提高系统抗干扰性能;使用移动支付和具备NFC功能的电子标签实现方便快捷的充值;并使用DSRC技术解决ETC车辆多义性路径标识问题,达到车辆通行费的准确计算与征收。对该ETC系统的测试结果表明,该系统响应快捷、计费准确且充值方便,具备一定的应用价值。
Aiming at the problems of large wireless loss, high path identification difficulty and few recharging points in electronic charging system, a set of electronic charging system based on OBU receiver and NFC recharging is designed. Evaluate channel propagation loss in ETC systems and improve system immunity using OBU equipment with high-speed data and optimization capabilities for fast wake-up; easy and fast recharge with mobile payment and NFC-enabled tags; and DSRC technology Solve the ambiguous path identification problem of ETC vehicles, and achieve accurate calculation and collection of vehicle toll fees. The test results of the ETC system show that the system has the advantages of fast response, accurate billing and convenient recharge, and has certain application value.