The invention discloses a method and a system for reducing adjacent lane interference in an ETC (Electronic Toll Collection) system. The method comprises the following steps of: identifying vehicle images of a covered current lane and an adjacent lane by using a camera integrated in an RSU antenna of the ETC system; when it is recognized that the vehicle exists in the current lane, an RSU antenna of the current lane is turned on to search for a response signal sent by an OBU; when vehicles exist in at least two adjacent lanes at the same time, the RSU antennas of the corresponding lanes adopt the same channel for searching; when the license plate information corresponding to the OBU signal is successfully matched with the license plate information of the vehicle image acquired by the current lane, the RSU antenna of the current lane transacts with the OBU unit; and when the vehicles exist in at least two adjacent lanes at the same time, the RSU antennas of the corresponding lanes adopt different channels to carry out transactions with the OBU units of the corresponding lanes. Through the technical scheme of the invention, the channel interference is effectively reduced, and the accuracy and stability of ETC transaction are improved.
本发明公开了一种降低ETC系统中邻道干扰的方法及系统,方法包括:利用ETC系统的RSU天线中集成的摄像头对所覆盖的当前车道和相邻车道的车辆图像进行识别;在识别到当前车道存在车辆时,打开当前车道的RSU天线搜索OBU单元发出的应答信号;在至少两个相邻的车道同时存在车辆时,对应车道的RSU天线采用相同的信道进行搜索;在OBU信号对应的车牌信息与当前车道所采集车辆图像的车牌信息匹配成功时,将当前车道的RSU天线与该OBU单元进行交易;在至少两个相邻的车道同时存在车辆时,对应车道的RSU天线采用不同的信道与对应车道的OBU单元进行交易。通过本发明的技术方案,有效降低了信道干扰,提升了ETC交易的准确性与稳定性。
Method and system for reducing adjacent channel interference in ETC system
一种降低ETC系统中邻道干扰的方法及系统
2025-02-28
Patent
Electronic Resource
Chinese
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