نتایج جستجو برای: fault detection

تعداد نتایج: 617774  

Journal: :Automatica 2008
Prashant Mhaskar Charles McFall Adiwinata Gani Panagiotis D. Christofides James F. Davis

This work considers the problem of control actuator fault detection and isolation and fault-tolerant control for a multi-input multi-output nonlinear system subject to constraints on the manipulated inputs and proposes a fault detection and isolation filter and controller reconfiguration design. The implementation of the fault detection and isolation filters and reconfiguration strategy are dem...

ژورنال: کنترل 2020

In this study, a novel fault detection scheme is developed for a class of nonlinear system in the presence of sensor noise. A nonlinear Takagi-Sugeno fuzzy model is implemented to create multiple models. While the T-S fuzzy model is used for only the nonlinear distribution matrix of the fault and measurement signals, a larger category of nonlinear systems is considered. Next, a mapping to decou...

2017
Wilson Wang Derek Dezhi Li

Induction motors (IMs) are commonly used in various industrial applications. A spectrum synch (SS) technique is proposed in this chapter for early IM defect detection using electric current signals; fault detection in this work will focus on defects in rolling element bearings and rotor bars, which together account for more than half of IM imperfections. In bearing fault detection, the proposed...

2006
GARY K. MAKI

A general design technique for achieving single faulttolerant asynchronous sequential circuits is described. The design procedures apply over a large range of fault conditions and are extremely easy to use. Generally, less than three times the logic required for a single copy is needed to achieve single fault tolerance. In addition to fault tolerance, real time fault detection is easily achieve...

Journal: :Automatica 2007
Hyung Keun Lee Jang Gyu Lee

For fault-tolerant real-time filtering, an efficient two-filter architecture is proposed. In the two-filter architecture, a host filter is operated permanently. A compression filter is intermittently initialized and operated during prescribed time intervals. to handle measurements susceptible to soft faults. New compression filters are derived based on time-propagated measurement concept. The d...

1991
Monica L. Visinsky John B. Cheatham Ian Walker

Fault tolerance is increasingly important in modern autonomous or industrial robots. The ability to detect and tolerate failures allows robots to e ectively cope with internal failures and continue performing designated tasks without the need for immediate human intervention. To support these fault tolerant capabilities, methods of detecting and isolating failures must be perfected. This thesis...

2004
Hai Zhao Bao-Liang Lu

This paper mainly analyses the fault tolerant capability of a combining classifier that uses a K-voting strategy for integrating binary classifiers. From the point view of fault tolerance, we discuss the influence of the failure of binary classifiers on the final output of the combining classifier, and present a theoretical analysis of combination performance under three fault models. The resul...

2017
Fatma Kahri Hassen Mestiri Belgacem Bouallegue Mohsen Machhout

The KECCAK cryptographic algorithms widely used in embedded circuits to ensure a high level of security to any systems which require hashing as the integrity checking and random number generation. One of the most efficient cryptanalysis techniques against KECCAK implementation is the fault injection attacks. Until now, only a few fault detection schemes for KECCAK have been presented. In this p...

1992
Donna Carol Herge

Inspection policies are essential for many types of systems for which the status (functioning or failed) can be determined only by actual inspection. Two types of inspection error may occur. A functioning system may be incorrectly assessed as having failed or a failed system may be incorrectly assessed as functioning. These errors are designated as Types I and II respectively, and their impact ...

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