基于FPGA红外遥控多模式交通信号系统的设计与实现

针对当前道路车流量逐渐增多，传统交通信号灯存在诸多弊端，容易引起交通路口拥堵，道路资源利用不足的情况. 本文首先采用Verilog语言设计出应对高峰、低峰、应急和夜间四种不同状况下的交通信号系统，并通过红外遥控的技术实现各模式的切换. 将设计的程序在QuartusⅡ软件环境中编译综合，然后设置参数进行仿真，得到各模式的仿真波形. 最后，设计并焊接相应的外部显示电路，将其与现场可编程门阵列（FPGA）开发板通过管脚分配，硬件连接，上电调试运行，验证设计功能.

The Design and Implementation of Infrared Remote Multi-ModeTraffic Signal System Based on FPGA Technology

In view of the current traffic in the road increases gradually，the traditional traffic light system has many disadvantages,such as it is easy to cause traffic congestionand waste of road resources. In this paper，the traffic signal systemwith four different conditions which arethe peak，low peak，emergency and night is designed by the language of Verilog.The multi-mode traffic signal system can be switched by the technology of infrared remote. The program is compiled and then integrated in QuartusⅡ. With the parameters given，the simulation waveforms are presented. Finally，the hardware circuit is designed and welded，and all pins are assigned and collected by Field-Programmable Gate Array（FPGA），the effectiveness of method is verified through debugging.