摘要
轨道交通已经成为人们的主要出行方式,列控系统是保障列车安全运行的核心系统。列控系统网络连接着种类繁多、数量庞大的设备,传统的物理隔离的网络安全防护手段已经不能满足高等级的网络安全要求。另外,列控系统是功能安全完整性等级为SIL4的系统,因无法确定对既有控制系统的安全影响,通用互联网络的安全防护手段无法直接使用。因此提出了一种综合的网络安全防护对策,既保障了列控系统的网络安全,又不对功能安全产生影响。
Rail transit has become main people’s travel mode.The train control system is the most critical system to ensure the safety operation of the train.The train control system network is connected with wide varieties and huge amount of equipment.The traditional network security means of physical isolation can no longer meet high level of network security requirements.In addition,the train control system is a system with functional safety integrity level SIL4.Since the security impact on existing control systems cannot be determined,the general security measures of the internet cannot be used directly.This study proposes a comprehensive network security protection countermeasures,which not only guarantees the network security of the train control system,but also does not affect the functional security of the existing system.
作者
刘贞
何跃鹰
丁欢
Liu Zhen;He Yueying;Ding Huan(CRSC Research&Design Institute Group Co.,Ltd.,Beijing 100070,China;Beijing Engineering Technology Research Center of Operation Control Systems for High Speed Railways,Beijing 100070,China;National Computer Network Emergency Response Technical Team/Coordination Center of China,Beijing 100029,China)
出处
《铁路通信信号工程技术》
2020年第12期1-7,共7页
Railway Signalling & Communication Engineering
关键词
高速铁路
城市轨道交通
列控系统
网络安全
high-speed railway
urban rail transit
train control system
network security
