双音多频技术在半自动闭塞中的应用  

Dual tone multi frequency technique in Semi-automatic Block System

作　　者：杨进[1] 杨城 

机构地区：[1]南京铁道职业技术学院通信信号学院,南京210035 [2]南京地铁运营有限责任公司通号中心,南京210012

出　　处：《铁路计算机应用》2014年第12期40-42,共3页Railway Computer Application

基　　金：江苏省轨道交通控制工程技术研究中心开放基金项目(KFJ20120206003)

摘　　要：64D半自动闭塞设备应用于铁路多年,已经暴露出很多问题。依据铁路标准,设计了一种基于双音多频通信技术的电子式闭塞机,用以取代原有继电器组合,处理电路由双单片机构成热备冗余,着重介绍了设计的可靠性,并给出了软件流程图。该设计基于单片机冗余技术,可靠性高,便于维护。64D semi automatic block equipment has been used in railway for many years, the system has exposed a lot of problems. According to railway standards, an electronic type block machine based on dual tone multi frequency communication technology was designed. It could be used to replace the original relays. The processing circuit constituted by a double hot standby redundancy. This paper introduced the reliability of design, and the software flow chart. The design was based on the single chip microcomputer redundancy technology, it was with high reliability and easy to maintenance.

关 键 词：半自动闭塞 单片机 双音多频技术 可靠性 

分 类 号：U284.2[交通运输工程—交通信息工程及控制] TP39[交通运输工程—道路与铁道工程]