长沙地铁2号线信号系统DCS有线网组网方式介绍

Wired Networking of DCS Subsystem of Signal System for Changsha Metro Line 2

地铁信号系统主要由列车自动监控子系统(ATS)、列车自动防护子系统(ATP)、列车自动驾驶子系统(ATO)以及数据通信子系统(DCS)等组成。其中DCS子系统是一个宽带通信系统,提供整个信号系统所需的双向、可靠、安全的数据交换服务。可以说,DCS子系统性能的高低,直接影响着整个信号系统的功能实现。将基于长沙地铁2号线信号系统中的DCS子系统,介绍一种新型的、比传统DCS子系统更具优势的DCS有线网组网方案。

The subway signal system includes mainly the automatic train supervision subsystem （ATS）, automatic train protection subsystem （ATP）, automatic train operation subsystem （ATO） and data communication subsystem （DCS）, of which the DCS subsystem is a broadband communication system, and it provides two-way, reliable and safe data exchange services for the entire signal system. That is to say, The performance of DCS subsystem will directly affect the functions of the entire signal system. The paper introduces a new DCS wired networking solution based on the DCS subsystem of the signal system for Changsha metro line 2, the solution has more advantages than traditional DCS subsystem.