【摘要】 交通信号灯是城市道路交通网中的主要控制设施,以往的交通信号的控制多半采用单片机,PLC控制,开发过程繁琐,兼容性不好。基于计算机可编程自动化控制器CPAC,采用ST语言作为主程序开发语言,完成了智能交通灯系统程序编写,设计出了系统的可视化界面,完成了系统硬软件的结合。从实验结果来看,系统具有较好的稳定性和准确性,能够进行上时间的无错运行。更多还原

【Abstract】 Traffic lights are the major control facilities in the urban road traffic network,the control of the traffic signal in the past mostly uses the low-compatibility single chip microcomputer PLC,which requires a complex development process.Based on CPAC(computer programmable automation controller),the paper involves completing programming for the intelligent traffic light system with the ST language as the main programming language,designing a visual interface for the system,and combining the systematic hardware and software.The experimental results indicate that the system has good stability and accuracy thus allowing error-free operation for a long period of time.更多还原