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首页> 外文会议>Trilateral safety amp; mission assurance conference (TRISMAC 2008) >GALILEO SAFETY AND DEPENDABILITY PROGRAMMEFOR SAFETY OF LIFE APPLICATIONS
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GALILEO SAFETY AND DEPENDABILITY PROGRAMMEFOR SAFETY OF LIFE APPLICATIONS

机译：GALILEO安全和可维护程序，保障生命安全

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摘要

A key objective of the Galileo Program is tornenable critical Safety of Life applications tornexist based upon the usage of the Signal InrnSpace, produced by the Galileo System andrnoperated by a Galileo operator.rnThe usage of Galileo within Safety of Lifernapplications all over the world enforces thernneed for certification of the system by externalrnbodies. However, since the individualrncertification requirements are not yet fullyrnknown, the current Galileo safety analysesrnneed to anticipate almost any eventuality.rnTo this end very stringent performance andrnsafety requirements have been applied to thernsystem in terms of integrity, continuity,rnavailability, single point failures etc. and arnrigorous set of analyses performed, includingrnReliability, Availability, Maintainability andrnSafety (RAMS) & Performance modelling, onrnthe system design to identify feared events.rnThese feared events are then either eliminatedrnfrom the design or suitable mitigationsrnimplemented. This is an iterative process thatrncontinues from the conceptual design stagernthrough to the Critical Design Review andrnbeyondrnThe EGNOS project, which is the precursor tornGalileo, faced many similar problems to thosernon Galileo in terms of the implementation of arnsafety & dependability programme that wouldrnfacilitate the eventual certification of thernsystem. Now in the final stages of definingrnhow, and by whom, that system will berncertified for Safety of Life applications thernlessons learnt from the EGNOS project havernbeen, and will continue to be, injected into thernGalileo programme.rnIt is clear that a major input will be requiredrnfrom the ESA Galileo project in terms ofrndocumentation to demonstrate that the systemrnhas been designed and built to meet thernstringent performance and safety requirements.rnThis documentation must be provided in arntruly transparent form to facilitaternincorporation into future certificationrnsubmissions.rnThis paper will report on the methodologyrnadopted by the ESA Galileo Project to providernthe required inputs to enable the eventualrncertification of the system, and will illustraternhow the Galileo approach to systems designrnand management is used to demonstraterncompliance to the system performance andrnsafety requirements.
机译：伽利略计划的一个关键目标是，根据伽利略系统生产的，并由伽利略操作员操纵的信号InnSpace的使用，将至关重要的生命安全应用程序撕毁。全球范围内在生命安全应用程序中使用伽利略系统强制要求由外部机构对系统进行认证。但是，由于个人认证要求尚未完全了解，因此当前的伽利略安全性分析需要预测几乎所有可能发生的情况。为此，在完整性，连续性，可用性，单点故障等方面，对系统应用了非常严格的性能和安全性要求。在系统设计中进行了一系列认真的分析，包括可靠性，可用性，可维护性和安全性（RAMS）和性能建模，以识别潜在事件。然后从设计中消除这些潜在事件或实施适当的缓解措施。这是一个反复的过程，从概念设计阶段一直到关键设计评审，再到其他阶段，EGNOS项目是Galileo的前身，在实施安全性和可靠性计划方面面临着与帖那农伽利略类似的许多问题，这将有助于最终对系统进行认证。现在，在定义方式以及由谁决定的最后阶段，将对该系统进行生命安全应用的认证，从EGNOS项目中汲取的教训已经并将继续注入到伽利略计划中。显然，将需要大量投入。 ESA Galileo项目的文件证明了该系统的设计和制造符合严格的性能和安全要求。必须以透明的形式提供此文件，以利于将其并入将来的认证书中。本文将报告ESA Galileo采用的方法。计划提供所需的输入以实现对系统的最终认证，并将说明如何使用伽利略系统设计和管理方法来证明对系统性能和安全性要求的遵从性。

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