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arXiv 2004.13290cs.SE
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基于仿真的高级可靠性模型安全评估

Simulation-based Safety Assessment of High-level Reliability Models

Simon József Nagy, Bence Graics, Kristóf Marussy, András Vörös

摘要:

系统工程方法使用高级模型来捕获系统的架构和行为。然而,当安全工程师进行安全和可靠性分析,他们必须创建正式的模型,如故障树,根据高层次的工程模型和环境/故障假设所描述的行为。我们的方法不是建立低层次的分析模型,而是建立在安全分析的工程模型上,利用最近的概率编程和模拟进步的模拟能力。因此,它可以根据标准和最佳实践应用于分析关键汽车系统,作为工业合作的一部分,同时利用工程师创建的高级框图和状态图模型。我们证明了我们的方法的适用性,在一个案例研究中改编自汽车系统的合作。

英文摘要:

Systems engineering approaches use high-level models to capture the architecture and behavior of the system. However, when safety engineers conduct safety and reliability analysis, they have to create formal models, such as fault-trees, according to the behavior described by the high-level engineering models and environmental/fault assumptions. Instead of creating low-level analysis models, our approach builds on engineering models in safety analysis by exploiting the simulation capabilities of recent probabilistic programming and simulation advancements. Thus, it could be applied in accordance with standards and best practices for the analysis of a critical automotive system as part of an industrial collaboration, while leveraging high-level block diagrams and statechart models created by engineers. We demonstrate the applicability of our approach in a case study adapted from the automotive system from the collaboration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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