基于ARM的六相位交通信号机设计

针对传统信号机相位少,运算性能低的缺陷,设计了以LM3S8962为控制核心的六相位交通信号机。在设计平面交叉口六相位模型的基础上,给出信号机控制模式、信号配时参数。根据信号机功能要求及LM3S8962的资源特性,给出信号机的硬件设计方案。利用模块化设计方法,完成各功能模块软件设计,并进行了系统整体测试。测试结果表明,设计的基于LM3S8962的六相位交通信号机功能完善、运行稳定,对于城市复杂平面交叉口,其控制效果优于传统信号机。

Design of six-phase traffic signal controller based on ARM

Aimed at overcoming the weakness of traditional signal controller,such as lack of phases and low operating performance,a six-phase traffic signal controller which uses the processor LM3S8962 as the main control chip was designed.Based on the design of the six-phase model for plane intersection,the signal control mode and signal timing parameters was given.According to the function requirements and combining with the resource characteristics of LM3S8962,the hardware design scheme was given.Using modular design method,software for each function module was completed.The whole system testing was taken at last.Through testing,the traffic signal controller based on LM3S8962 proves to be good functioning and stably running and for complex plane intersections in city,it has better control effect than traditional controllers.