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首页> 外文期刊>Fortschritt-Berichte VDI, Reihe 8. Mess-, Steuerungs- und Regelungstechnik >Observer-based Fault Detection of Technical Systems over Networks
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Observer-based Fault Detection of Technical Systems over Networks

机译：网络上基于观察者的技术系统故障检测

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摘要

The thesis focuses on topics related to fault detection (FD) problems of technical systems where networks are (partly) used for data transmissions. Based on the systematic modeling of network-induced time-varying transmission delays, packet dropouts, quantization errors and bit errors, two observer-based schemes for the purpose of FD of technical systems over networks are designed: an FD system for detecting faults in technical systems at a remote site and an FD system for detecting faults in networked control systems. The presented schemes have the following characteristics: (1) they are optimal in the sense of achieving the best trade-off between the sensitivity to system faults and the robustness against system disturbances and network-induced effects, (2) they can provide reliability information of rising fault alarms, (3) the design problems can be efficiently solved by means of existing efficient numerical solvers.
机译：本文的重点是与技术系统的故障检测（FD）问题相关的主题，在这些系统中，网络（部分）用于数据传输。基于网络引起的时变传输延迟，数据包丢失，量化错误和比特错误的系统建模，设计了两种基于观察者的方案，用于通过网络进行技术系统的FD：检测技术故障的FD系统远程站点上的系统和用于检测网络控制系统中的故障的FD系统。提出的方案具有以下特征：（1）在实现对系统故障的敏感性与针对系统干扰和网络引起的影响的鲁棒性之间的最佳权衡的意义上，它们是最佳的;（2）它们可以提供可靠性信息（3）利用现有的高效数值求解器可以有效地解决设计问题。

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