铁道标准设计Issue(4)：121-124,4.DOI:10.13238/j.issn.1004-2954.2015.04.029
基于贝叶斯网络的城市轨道交通CBTC系统SIL研究
Research on SIL of CBTC System of Urban Rail Transit Based on Bayesian Network
张舟洋 1李华 1魏念龙2
作者信息
- 1. 兰州交通大学自动化与电气工程学院，兰州 730070
- 2. 呼和浩特供电段，呼和浩特 010000
- 折叠
摘要
Abstract
CBTC system of urban rail transit is a demanding security system. In order to better analyze the security of CBTC system, the functions of subsystems and unit modules are divided and Bayesian network of CBTC system is established through top-down analysis of the entire system. The failure rate of CBTC system is then calculated bottom-to-top from subsystems to the entire CBTC system. Finally, SIL of the system is validated in perspective of system failure. The results show that fault-tolerant capability of entire CBTC system can be increased by adjusting redundant structure of subsystems to improve completeness of random failure and meet the safety standard requirements under the condition that system the fault rate of hardware equipment remains unchanged关键词
贝叶斯网络/CBTC系统/安全完整性等级SILKey words
Bayesian Network/CBTC system/Safety Integrity level (SIL)分类
资源环境引用本文复制引用
张舟洋,李华,魏念龙..基于贝叶斯网络的城市轨道交通CBTC系统SIL研究[J].铁道标准设计,2015,(4):121-124,4.
