京九线18信息移频自动闭塞系统的分析研究  

Study on FSK Auto-block System with 18-message for Jingjiu Railway Line

作　　者：黄鹏翔[1] 

机构地区：[1]铁道部第四勘测设计院通信信号研究设计处,湖北武汉430063

出　　处：《中国铁道科学》2001年第4期118-123,共6页China Railway Science

基　　金：铁道部科技研究开发计划项目 (94X0 8A; 94X0 8E)

摘　　要：京九线 18信息移频自动闭塞系统 ,由能自成独立单元可配套使用的 18信息移频自动闭塞、通用式机车信号及列车超速防护装置 3部分组成。系统采用点连式速控信息 ,以连续信息为主 ,并首创了点式信息与移频信息叠加共用同一电缆通道及轨道电路设备传输的方式。自动闭塞区间、站内采用移频轨道电路或电码化提供 18个低频信息 ,除满足机车信号显示需要外 ,还满足列车超速防护装置对地面连续信息的要求。通用式机车信号适用于移频 (4信息及 18信息 )、交流计数以及UM 71轨道电路 ,其机车信号灯光显示除了满足自动闭塞区间、站内及枢纽内各种列车信号显示的需要 ,还与现行各种机车信号显示兼容。此外 ,系统还应用了数据处理、频域处理技术 ,大规模数字信号处理 (DSP)芯片、多层印刷电路板等新型器件 ,以及双机热备、N +1备用和双套软件等冗余技术 ,以保证系统的工作精度和抗干扰能力 ,确保系统工作的稳定可靠 ,提高设备的安全性和可用性。The paper introduces the FSK auto-block system of 18- message for Jingjiu Railway Line. The system consists of three parts: FSK auto-block system with 18-message, universal cab signal and auto train protection (ATP). Each of the three parts can form an independent system, and also can match with each other. The system adopts intermittent and continuous messages speed control information, taking the continuous message as the main. It is the first time to overlap the intermittent message with the FSK on the same transmission channel and the same track circuit equipment. In automatic blocking sections and within stations, 18 low-frequency messages are provided by the frequency-shift or coded track circuits to satisfy the requirements of the cab signal, as well as the requirements from ATP upon the wayside continuous messages. The universal cab signal can be used in track circuits of such types as frequency-shift (4-message and 8-message), AC counting, and UM-71.The cab signal can satisfy both the requirements of the aspects of the various train signals in automatic blocking sections, stations and yards, and the requirements of the compatibility with the existing cab signal. In addition, this system adopts the technologies of digital processing and frequency-domain processing, use such new components as large-scale digital signal processing chips and multi-layer printed circuit board etc., and also employs redundancy technologies of duplex hot standby, N+1 standby, and dual software. These measures are aimed at ensuring the system performance precision, anti-interference ability, the system reliability, and the system safety and availability.

关 键 词：京九线 铁路 自动闭塞 移频 列车超速防护 机车信号 

分 类 号：U284.43[交通运输工程—交通信息工程及控制]