Title :
Practical considerations in systems diagnosis using timed failure propagation graph models
Author :
Abdelwahed, Sherif ; Karsai, Gabor
Author_Institution :
Vanderbilt Univ. Nashville, Nashville
Abstract :
Timed failure propagation graphs (TFPG) are causal models that capture the temporal aspects of failure propagation in dynamic systems. In this paper we present several practical modeling and reasoning considerations that have been addressed based on experience with avionics systems. These include the problem of intermittent faults, handling test alarms, dealing with limited computational resources, and model reduction for large scale systems.
Keywords :
failure analysis; fault diagnosis; graph theory; avionics systems; causal models; dynamic systems; intermittent faults; large scale systems; limited computational resources; model reduction; practical modeling; reasoning consideration; systems diagnosis; test alarms handling; timed failure propagation graph models; Aerospace electronics; Condition monitoring; Fault diagnosis; Large-scale systems; Reduced order systems; Robustness; Runtime; Software systems; System testing; Systems engineering and theory;
Conference_Titel :
Autotestcon, 2007 IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-1239-6
Electronic_ISBN :
1088-7725
DOI :
10.1109/AUTEST.2007.4374211
