Browsing by Subject "Fault detection"
Now showing items 1-20 of 23
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Conference Object
Abrupt and incipient fault isolation of nonlinear uncertain systems
(2000)This paper presents a robust fault diagnosis scheme for abrupt and incipient faults in nonlinear uncertain dynamical systems. A detection and approximation estimator is used for online health monitoring. Once a fault is ...
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Article
Algebraic approaches for fault identification in discrete-event systems
(2005)In this note, we develop algebraic approaches for fault identification in discrete-event systems that are described by Petri nets. We consider faults in both Petri net transitions and places, and assume that system events ...
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Conference Object
Bounds on max-product algorithms for multiple fault diagnosis in graphs with loops
(Institute of Electrical and Electronics Engineers Inc., 2007)In this paper, we analyze the performance of algorithms that use belief propagation max-product iterations to solve the generalized multiple fault diagnosis (GMFD) problem. The GMFD problem is described by a bipartite ...
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Conditional densities for continuous-time nonlinear hybrid systems with applications to fault detection
(1998)Continuous-time nonlinear stochastic differential state and measurement equations, all of which have coefficients capable of abrupt changes at a random time, are considered; finite-state jump Markov chains are used to model ...
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Conference Object
Decentralized Reconfigurable Control for Large-Scale Systems with Application to a Segmented Telescope Test-Bed
(2003)Designing a decentralized reconfigurable control (DRC) system is considered for large-scale systems. The objective of the DRC system is to achieve performance requirements under normal and sensor failure situations. The ...
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Designs of bisimilar Petri net controllers with fault tolerance capabilities
(2008)This paper proposes an approach for providing tolerance against faults that may compromise the functionality of a given controller modeled by a Petri net. The method is based on embedding the given Petri net controller ...
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Conference Object
Distributed diagnosis using predetermined synchronization strategies in the presence of communication constraints
(IEEE Computer Society, 2015)We consider distributed fault diagnosis in a discrete event system modeled as a nondeterministic finite automaton that is observed at multiple observation sites through distinct natural projection maps. The majority of ...
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Distributed Fault Diagnosis in Discrete Event Systems via Set Intersection Refinements
(2018)We extend and verify diagnosability for a class of set intersection refinement strategies, which can be used for distributed state estimation and fault diagnosis in nondeterministic finite automata that are observed at ...
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Dynamical models for fault detection in squirrel cage induction motors
(2007)Induction motors are the dominant components in industrial processes involving electromechanical energy conversion. Safety, reliability and efficiency are major concerns in modern induction motor applications. Since detecting ...
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Conference Object
Fault detection and identification in Petri net controllers
(2004)This paper proposes a methodology for providing fault tolerance to Petri net controllers. In order to provide tolerance against faults that may compromise the functionality of the Petri net controller, we construct a ...
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Conference Object
Fault detection and recovery in a data-driven real-time multiprocessor
(Publ by IEEE, 1994)This paper introduces the mechanisms required to perform fault detection and recovery in the DART multiprocessor architecture. The DART multiprocessors uses prioritized data-driven scheduling to ensure that multiple hard ...
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Fault model identification and synthesis in Petri nets
(2015)Fault identification studies in the Discrete Event Systems literature are typically model-based and require knowledge of the structure of the system, including the nature (and behavior) of the possible faults. In this paper ...
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Conference Object
Model-based fault detection in power systems
(2006)In this paper, we propose an on-line monitoring scheme to detect lost lines and bus load changes on an embeded power system. The proposed monitoring scheme does not rely on classical estimation schemes used in power systems; ...
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Monitoring discrete event systems using Petri net embeddings
(1999)In this paper we discuss a methodology for monitoring failures and other activity in discrete event systems that are described by Petri nets. Our method is based on embedding the given Petri net model in a larger Petri net ...
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Conference Object
NoCAlert: An on-line and real-time fault detection mechanism for network-on-chip architectures
(2012)The widespread proliferation of the Chip Multi-Processor (CMP) paradigm has cemented the criticality of the on-chip interconnection fabric. The Network-on-Chip (NoC) is becoming increasingly susceptible to emerging reliability ...
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Conference Object
Nonconcurrent error correction in the presence of roundoff noise
(2006)This paper analyzes the effects of roundoff noise on our ability to nonconcurrently detect and identify transient faults that corrupt state variables during the operation of a fault-tolerant discrete-time (DT) linear ...
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On the history of diagnosability and opacity in discrete event systems
(2018)This paper presents historical remarks on key projects and papers that led to the development of a theory of event diagnosis for discrete event systems modeled by finite-state automata or Petri nets in the 1990s. The goal ...
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An online and real-time fault detection and localization mechanism for network-on-chip architectures
(2016)Networks-on-Chip (NoC) are becoming increasingly susceptible to emerging reliability threats. The need to detect and localize the occurrence of faults at runtime is steadily becoming imperative. In this work, we propose ...
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Conference Object
Optimal Topology for Distributed Fault Detection of Large-scale Systems★★This paper has been partially supported by the EPSRC STABLENET grant EP/L014343/1.
(2015)The paper deals with the problem of defining the optimal topology for a distributed fault detection architecture for non-linear large-scale systems. A stochastic modelbased framework for diagnosis is formulated. The system ...
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Conference Object
Performance analysis of sum-product algorithms for multiple fault diagnosis applications
(2010)In this paper, we study the application of sum-product algorithms (SPAs) to multiple fault diagnosis (MFD) problems in order to diagnose the most likely state of each component given the status of alarms. SPAs are heuristic ...