一种适用于功能安全的软件结构化方法

A Software Structured Methodology for Function Safety

由于轨道交通车辆空间小、人流量大,其安全性越来越受到重视,特别是其网络控制系统的安全性越来越受到关注。文章提出一种基于验证和评估、符合功能安全要求的软件结构化方法,其包括结构化分析方法、结构化设计方法、结构化测试、可追溯性和结构化评估,并成功应用于出口马其顿动车的网络TCMS系统软件中。实际应用结果表明,该软件结构化方法实现了网络控制系统的安全性,从软件层面保证了网络控制系统的安全。

Huge traffic volume and limited vehicle space of rail transit system poses great safety challenges, and the safety of TCMS（train control and management system） has been drawing more and more attentions. This paper introduced an evaluation and assessment based software structured methodology for function safety. The proposed methodology covers structured analysis, structured design, structured test, traceability and structured assessment, and has been applied to the TCMS software of the Macedonia EMU. According to the application performance, the proposed methodology ensures the safety of TCMS software.