高速公路机电工程程控数字交换技术研究

Program Controlled Digital Switch Technique of Electromechanical Engineering on Expressway

以公路机电工程程控数字交换技术为研究核心,论述模拟信号数字化,多路复用、复接技术,数字信号的基带传输以及程控数字交换机基本构成等四个问题。研究表明,高速公路设置专用程控数字交换系统是获取高可靠性、高可用性通信工具的物质保证;利用已建管道安装程控电话可节省投资费用。

Taking the program controlled digital switch technique as research core,four issues of analog signals＇ digitization,multiplexing technology,baseband transmission of digital signals and basic composing of program controlled digital exchanger are discussed.The research result shows that it is the material guarantee for getting highly reliable and feasible communication facility that setting special program controlled digital switch system on expressway,and installing program-controlled telephone utilizing completed piping can save investment.