智能交通ETC系统中电子标签的防碰撞算法研究

Tag Anti-collision Designment of ETC System

公路的人工收费方式已经成为我国公路车辆快速通行的瓶颈之一,使得研究与推广不停车收费(ETC)系统成为我国公路交通的迫切需要。由于在实际情况下要求读卡器能识别多个同时进入ETC车道的电子标签,所以需采取合适的防碰撞算法。探讨了一种基于CSMA/CA技术的电子标签防碰撞设计,并进行分析,提出合适的防碰撞方法,满足了实际要求。

Highway artificial charging methods have become road vehicles to pass on one of the bottlenecks,make development and research of electronic toll collection system become an urgent need for road transport.In fact,as the reader can simultaneously identify multiple tags into the ETC lane,the system need to take the appropriate anti-collision algorithm,this paper uses CSMA/CA technology,make appropriate anti-collision algorithm to meet the system requirements.