摘要
分析了现有信号灯控制系统的优缺点,提出了一种基于无线传感器网络的交通灯控制系统设计方案,利用敷设在路面上的携带超声波收发模块的传感器节点探测各方向车道上车流量,并根据车流量实时改变相应车道车辆放行时间,以提高道路利用率,减少拥堵现象。本系统可准确地获得车流量统计信息。对信号灯调度过程进行了建模分析,提出了自适应的调度算法,仿真实验结果表明,该算法能降低车辆平均等待时间,提高通行效率。
By analyzing the existing traffic light control systems,an adaptive traffic light control system based on wireless sensor networks is proposed.The flow rate of vehicles is measured by using the wireless ultrasonic sensor nodes deployed on the road.The scheduling process of traffic lights is modeled and analyzed.An adaptive scheduling algorithm is presented,and simulation results show that this algorithm is able to reduce average waiting time of vehicles and improve traffic efficiency.
出处
《计算机与数字工程》
2011年第5期67-69,91,共4页
Computer & Digital Engineering
关键词
无线传感器网络
车流量
超声波
交通灯控制
wireless sensor networks
traffic-efficient
ultrasonic
traffic light control
