摘要
介绍高速铁路防灾安全监控系统3个主要通信组网方案,并对3个方案的组网原理、保护倒换原理、业务处理流程等进行深入分析。从网络可靠性、传输时延、传输带宽、工程投资、工程实施难度等方面对方案进行分析比较,通过全面的分析比较提出树型组网方案是防灾安全监控系统最佳通信组网方案,对后续工程的设计有一定的参考意义。
The paper introduces three communication networking schemes of the disaster prevention safety monitoring system for high-speed railways with the analysis of the networking principle, protection handover principle and operation flow of the three schemes. It concludes that the tree-type networking scheme is the best one by a comprehensive analysis from such aspects as network reliability, transmission delay, transmission bandwidth, engineering investment and implementation difficulty, and it is of reference value for engineering designs in the future.
出处
《铁路通信信号工程技术》
2012年第3期18-22,共5页
Railway Signalling & Communication Engineering
关键词
环型
星型
树型
以太网
二层交换
可靠性
时延
带宽
loop type
star type
tree type
Ethernet
two-layer switching
reliability
delay
bandwidth
