基于MSP430F149的路口交通灯智能控制系统的研制

摘要

In some cities, their traffic light control systems are working in fixed time sequence currently, which is incompatible with the great changes of the traffic flow.In light of this problem, an intelligent control scheme is proposed, which can adaptively adjust the time sequence of traffic direction in intersections according to traffic flow changes, and transmits the information of traffic flow changes to neighbouring intersection by wireless network to accommodate such variations.The system uses modular design, including central processing module, flow detection module, wireless transmission module, signal drive module and power module, etc.Test shows that the access intervals can be coped with the traffic flow changes,and the system improves the traffic efficiency obviously.%目前,一些城市的交通指示系统采用固定循环时序控制,这与交通流量的极大变化不相适应.针对这一问题,提出了路口交通指挥时序可随交通流量变化自适应调整的智能控制方案,并通过无线网络把本路口交通流量的变化信息传输给邻近路口以适应交通流量的变化.系统采用了模块化设计方案,包括中央处理模块、流量检测模块、无线传输模块、信号驱动模块及电源模块等.测试表明,路口通行间隔能随车流量变化而改变,系统对提高交通效率明显效果.