摘要
提出了一种用于轨道交通信号系统的安全计算机平台的设计方法。提出了轨道交通对安全系统的可靠性指标及安全性指标的要求以及故障-安全设计原则,并以此为基础,提出一种三取二的体系架构,阐述了该架构的软硬件组成。重点描述了该安全计算机平台实现的主要功能,最后对该系统的可靠性及安全性进行了分析和计算,结果均达到要求。该平台已通过国家专项验收。
A design method which can be used to the safety platform of mass transit signaling system is proposed. The reliability ＆ safety specifications and fail-safe design principle of safety system are described first. From these requirements, a kind of two out of three architecture is proposed and the composition of software and hardware are described. This paper then focuses on the main functions of this safety platform, and its reliability ＆ safety are analyzed and calculated to satisfy the requirement. This platform had been tested and accepted as national special project.
出处
《信息化研究》
2009年第8期32-36,共5页
INFORMATIZATION RESEARCH
