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Fault recovery using discrete event models

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Rapid Soft Fault Recovery

SAE Technical Paper Series, 2001
<div class="htmlview paragraph">Empirical and analytic simulation studies of “rapid recovery” from soft faults have been activities, at the Langley Research Center (LaRC) at NASA, supporting the evolution of a systems integration facility where failure emulation testing could be performed (particularly on digital electronic technology-based ...
Richard Hess, Mahyar Malekpour
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Recovery From Temporary H.V.D.C. Line Faults

IEEE Power Engineering Review, 1981
Modelling techniques are described to simulate the behaviour of a.c./d.c. systems following temporary d. c. line short-circuits. The basic tools employed are a small step dynamic simulation and a multimachine transient stability programme. Test results are shown to illustrate the speed of recovery from a d.c. short-circuit.
M. Heffernan, J. Arrillaga, K. Turner, C. Arnold   +3 more
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Early Fault Self-recovery Model and Fault Self-recovery Methods on Aircraft

2008 Chinese Control and Decision Conference, 2008
In order to increase the safety of aircraft and its the reliability, the early fault self-recovery model of aircraft is established and the early fault self-recovery methods are presented. They are based on the early fault mechanisms analysis of the aircraft and the early fault characteristics of the aircraft are used.
null Wang Zhongsheng, null Li Ming
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A Fault Recovery Approach in Fault-Tolerant Processor

2009 International Conference on Scalable Computing and Communications; Eighth International Conference on Embedded Computing, 2009
A fault recovery scheme of a fault-tolerant processor for embedded systems is introduced in this paper. The microarchitecture of the fault-tolerant processor called RSED is modified from superscalar processor architecture. The fault-tolerant mechanism of RSED is implemented mainly using temporal redundancy technique.
Hongbing Li, Lihong Shang, Jianxun Dang, Huihua Jin   +3 more
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Optimal Relay Node Fault Recovery

2007 Fourth Annual International Conference on Mobile and Ubiquitous Systems: Networking & Services (MobiQuitous), 2007
Topology control problems are concerned with the assignment of power levels to the nodes of an ad-hoc network so as to maintain a specified network topology while minimizing the energy consumption of the network nodes. A two-tiered network model has been proposed recently for prolonging the lifetime and improving the scalability in ad-hoc sensor ...
Fei Che, Liang Zhao, Errol L. Lloyd
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High performance fault tolerant computer and its fault recovery

Proceedings Pacific Rim International Symposium on Fault-Tolerant Systems, 2002
The authors proposed a new architecture for an FTC called QPR (Quad Processor Redundancy) in which duplicated CPUs operate under a hardware lock step, and duplicated I/Os are managed by software. A dual system bus combines two duplicated areas. After recovery from a fault, it is necessary to resynchronize the system, so the contents of the main memory ...
T. Nakamikawa, Y. Morita, S. Yamaguchi, S. Ishikawa, Y. Miyazaki   +4 more
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Checkpoint Selection in Fault Recovery Based on Byzantine Fault Model

2012 Fourth International Conference on Computational Intelligence and Communication Networks, 2012
Nowadays, with the growth of the performance, the reliability problem of supercomputers becomes more and more serious. In order to complete an application with small fault recovery overhead, Checkpoint/Restart(C/R) methods are widely used. So far, the mainstream C/R methods are either based on Fail-Stop fault model or making the system(or program) do ...
Xinhai Xu, Yufei Lin
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Fault recovery in discrete event systems

2005 ICSC Congress on Computational Intelligence Methods and Applications, 2005
In this paper, we study the synthesis of fault recovery procedures using discrete-event models. It is assumed that a diagnosis system is available that detects and isolates the faults with a bounded delay. Thus, the combination of the plant and the diagnosis system, as the system to be controlled, will have three modes: normal, transient and recovery ...
A. Saboori, S. Hashtrudi Zad
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Improving Fault Tolerance through Crash Recovery

2012 International Symposium on Biometrics and Security Technologies, 2012
Computers are indispensable to modern human society. In spite of the tremendous amount of efforts spent on improving the computer software quality, however, software bugs are inevitable. The problems of software bugs could range from minor (such as fonts) to catastrophic (such as mission-critical control programs).
Tsozen Yeh, Weian Cheng
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