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Cyber-physical avionics systems and its reliability evaluation

机译：电子物理航空电子系统及其可靠性评估

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Avionics systems play a significant role in civil aircraft, and its reliability is directly related to the flight safe. In this paper, integrated modular avionics (IMA), as the most advanced avionics systems, is analyzed. Via exploration of the interaction mechanism of IMA and real physical system, its property of cyber-physical systems (CPS) is determined. Hence, according to different functional modules, a cyber-physical avionics systems model is established for IMA, meanwhile task-oriented state spaces of sub-units in CPS architecture are assigned to construct the hierarchical model for reliability model of IMA. A mathematic formula is presented to calculate reliability. The key contribution is that task-oriented cyber-physical idea is applied, and a hierarchical model for reliability analysis of IMA is presented. At last, reliability model is applied to a case study, which shows that two different way to raise IMA reliability.
机译：航空电子系统在民用飞机中起着重要作用，其可靠性直接关系到飞行安全。在本文中，作为最先进的航空电子系统，分析了集成模块化航空电子系统（IMA）。通过探索IMA与实际物理系统的相互作用机制，确定了IMA与网络物理系统（CPS）的关系。因此，根据功能模块的不同，建立了IMA的电子物理航空电子系统模型，同时分配了CPS架构中子单元的面向任务的状态空间，构造了IMA可靠性模型的层次模型。提出了计算可靠性的数学公式。关键贡献在于应用了面向任务的网络物理思想，并提出了用于IMA可靠性分析的分层模型。最后，将可靠性模型应用到案例研究中，表明了两种提高IMA可靠性的方法。

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