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From extended integrity monitoring to the safety evaluation of satellite-based localisation system

机译：从扩展的完整性监控到基于卫星的定位系统的安全评估

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摘要

Global Navigation Satellite Systems (GNSS) such as GPS, already used in aeronautics for safety-related applications, can play a major role in railway safety by allowing a train to locate itself safely. However, in order to implement this positioning solution in any embedded system, its performances must be evaluated according to railway standards. The evaluation of GNSS performances is not based on the same attributes class than RAMS evaluation. Face to these diffculties, we propose to express the integrity attribute, performance of satellite-based localisation. This attribute comes from aeronautical standards and for a hybridised GNSS with inertial system. To achieve this objective, the integrity attribute must be extended to this kind of system and algorithms initially devoted to GNSS integrity monitoring only must be adapted. Thereafter, the formalisation of this integrity attribute permits us to analyse the safety quantitatively through the probabilities of integrity risk and wrong-side failure. In this paper, after an introductory discussion about the use of localisation systems in railway safety context together with integrity issues, a particular integrity monitoring is proposed and described. The detection events of this algorithm permit us to conclude about safety level of satellite-based localisation system. (C) 2016 Elsevier Ltd. All rights reserved.
机译：已经在航空安全相关应用中使用的GPS等全球导航卫星系统（GNSS）通过允许火车安全地定位自身，可以在铁路安全中发挥重要作用。但是，为了在任何嵌入式系统中实施此定位解决方案，必须根据铁路标准评估其性能。 GNSS性能的评估与RAMS评估基于的属性类别不同。面对这些困难，我们建议表达完整性属性，基于卫星的本地化性能。此属性来自航空标准以及带有惯性系统的混合GNSS。为了实现此目标，必须将完整性属性扩展到此类系统，并且必须仅调整最初专用于GNSS完整性监视的算法。此后，此完整性属性的形式化使我们能够通过完整性风险和错误侧失败的概率来定量分析安全性。在本文中，在对在铁路安全环境中使用定位系统以及完整性问题进行了介绍性讨论之后，提出并描述了一种特殊的完整性监视。该算法的检测事件使我们可以得出基于卫星的定位系统的安全级别的结论。 （C）2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Reliability Engineering & System Safety》 |2016年第11期|105-114|共10页
  • 作者

    Legrand Cyril; Beugin Julie; Marais Juliette; Conrard Blaise; El-Koursi El-Miloudi; Berbineau Marion;

  • 作者单位

    Univ Lille Nord France, F-59000 Lille, France|IFSTTAR, COSYS, ESTAS, F-59650 Villeneuve Dascq, France|Inst Rech Technol Railenium, F-59300 Famars, France;

    Univ Lille Nord France, F-59000 Lille, France|IFSTTAR, COSYS, ESTAS, F-59650 Villeneuve Dascq, France;

    Univ Lille Nord France, F-59000 Lille, France|IFSTTAR, COSYS, ESTAS, F-59650 Villeneuve Dascq, France;

    Univ Lille Nord France, F-59000 Lille, France|CRIStAL, UMR 9189, F-59650 Villeneuve Dascq, France;

    Univ Lille Nord France, F-59000 Lille, France|IFSTTAR, COSYS, ESTAS, F-59650 Villeneuve Dascq, France;

    Univ Lille Nord France, F-59000 Lille, France|IFSTTAR, COSYS, ESTAS, F-59650 Villeneuve Dascq, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Satellite-based localisation system; Integrity monitoring; Safety; Railway safety-related applications;

    机译：基于卫星的定位系统;完整性监控;安全性;铁路安全相关应用;

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