T型路口全感应交通控制器的设计

T-junction Traffic Controller Design for the Whole Sensors

伴随着集成电路(IC)技术的发展,电子设计自动化(EDA)逐渐成为重要的设计手段,已经广泛应用于模拟与数字电路系统等许多领域。利用EDA工具可以在电子设计的各个阶段、各个层次进行计算机模拟仿真,保证设计工程的正确性,可以大大降低设计成本,缩短设计周期。交通灯控制系统可以实现交叉路口的红、绿灯自动控制,基于FPGA的交通控制系统具有电路简单、实时快速擦写、运算速度快、故障率低、可靠性高,而且体积小等特点。系统通过功能扩展、接口扩展可同时控制多个路口的红绿灯变换,可根据需要实现实时、快速擦写应用程序。设计采用了VHDL的结构描述风格,依据功能将系统分为控制模块、计数模块、显示模块、译码等模块,仿真结果表明控制系统自动实现了灯色的交替和转换,以及倒计时显示。

The Electronic Design Automation(EDA) technology has become an important design method of analog and digital circuit system as the integrated circuit growing,and has been widely used in analog and digital circuitry and many other fields.To use the tools of EDA,computer simulation can be used in various stages and all levels of electronic design so that the design works accuracy,can greatly reduce the design cost and shorten the design cycle.The traffic light control system usually need to achieve automation control the traffic lights junction change and the traffic lights control system based on FPGA with simple,reliable,and high-speed operation characters.The system through function and interface expansion can simultaneously control several intersections traffic lights junction transform,and it also can rewrite application rapid and immediate if necessary.Designed using VHDL description style of the structure,function.according to the need,each system is divided into controller module,counter modules,display module,decoding module and so on.Results of the simulation show that the system can control the traffic lights change.