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随着全球汽车产业的迅速发展,城市机动车辆不断增加,交通拥塞问题也日益严重,红绿灯的控制对交通的影响起着决定性作用,为了提高红绿灯控制的效率,我们提出了一种基于无线传感器网络(WSN)的红绿灯控制系统.本文通过分析红绿灯控制现状的缺点,提出运用磁阻传感器实现车辆检测,搭建了无线传感器网络的控制平台,分析了节点的布设方法,并在此基础上提出了基于时间片控制机制的算法,根据车流量的大小由控制节点完成对红绿灯的动态、实时控制。通过模型的分析,表明系统在改善交通状况,提高路口通行率方面是很有效的。
With the rapid development of the global automotive industry, the number of urban motor vehicles is increasing and traffic congestion is becoming increasingly serious. The traffic light control plays a decisive role in traffic control. In order to improve the traffic light control efficiency, a wireless sensor network (WSN) .Through analyzing the shortcomings of the traffic light control status quo, this paper proposed the use of magnetoresistive sensors to detect vehicles and set up the control platform of the wireless sensor network, and analyzed the deployment method of nodes.On the basis of this, Time slice control mechanism algorithm, according to the size of the traffic flow by the control node to complete the traffic lights on the dynamic, real-time control. Through the analysis of the model, it shows that the system is very effective in improving the traffic conditions and improving the traffic rate at intersections.