论文标题
用于捕获网络物理系统可靠性的通用框架
A Generic Framework For Capturing Reliability in Cyber Physical Systems
论文作者
论文摘要
网络物理系统通过在物理和计算组件之间的紧密整合来解决复杂的问题。因此，复杂系统的可靠性是网络物理系统的最关键要求，因为不可靠的系统通常会导致服务中断，财产坝时代，财务失落，有时会导致死亡。为了开发更可靠的CPS，本文提出了一个通用框架，用于我们在网络物理系统上正在进行的工作的可靠性建模和分析。本文首先定义了由三层组成的一般CPS的体系结构；环境层，通信层和计算层。其次，我们为架构组件的可靠性模型形式化，然后在考虑如何捕获可靠性的情况下为CPS的可靠性提出了一个框架。基于研究方法，我们通过使用离岸和陆上可靠性数据库中的不同可靠性值来证明所提出的框架工作。我们确认可靠性模型涵盖了一般网络物理系统所需的几乎所有可能的可靠性。
Cyber Physical Systems solve complex problems through their tight integration between the physical and computational components. Therefore, the reliability of a complex system is the most critical requirement for the cyber physical system because an unreliable system often leads to service disruption, property dam-age, financial loses and sometimes lead to fatality. In order to develop more reliable CPS, this paper proposes a generic framework for reliability modeling and analysis for our ongoing work on cyber physical systems.This paper, at first defines an architecture for general CPS which is comprised of three layers; environment layer, communication layer, and computational layer. Secondly, we formalize a reliability model for the architectural components, and then propose a framework for the reliability of CPS with the consideration of how to capture the reliability. Based on the research method, we demonstrate the proposed frame-work with an illustrative example by using different reliability values from offshore and onshore reliability data library. We confirmed that the reliability model covers almost all possible reliabilities required to general cyber-physical systems.
