摘要
远程数据通信是城市交通信号控制系统的重要组成部分。该文介绍了一种利用PSTN网实现交通控制中心计算机与路口交通信号控制机进行数据传输的通信方案及其实现,重点介绍了以87C196KC单片机为控制器的路口信号控制机与智能终端MODEM的硬件接口设计及软件实现技术。同时对控制中心计算机与MODEM进行通信的软件实现也作了简单介绍。实际应用表明,基于PSTN网的远程数据通信具有经济、可靠和方便的特点,能够满足实际交通信号控制系统数据通信的需要。
The remote data communication is an important part of urban traffic signal control system.In this paper,a remote data communication scheme of traffic signal control machine and control computer,based on PSTN network,is designed.The direct interface design and software implementation method between microcomputer87C196KC and intelligent MODEM are introduced in detail.Also,the communication software design between computer and MODEM is briefly introduced.The practical application indicates that the remote data communication method based on PSTN network is characterized with economy ,reliability and convenience,and satisfies the demands to data communication in the real traffic signal control system.
出处
《计算机工程与应用》
CSCD
北大核心
2003年第29期218-221,共4页
Computer Engineering and Applications
基金
国家自然科学基金重点项目(编号:60134010)
