Distributed diagnosis of complex systems using timed failure propagation graph models

TitleDistributed diagnosis of complex systems using timed failure propagation graph models
Publication TypeConference Paper
Year of Publication2010
AuthorsMahadevan, N., S. Abdelwahed, A. Dubey, and G. Karsai
Conference NameAUTOTESTCON, 2010 IEEE
Abstract

Timed failure propagation graph (TFPG) is a directed graph model that represents temporal progression of failure effects in physical systems. In this paper, a distributed diagnosis approach for complex systems is introduced based on the TFPG model settings. In this approach, the system is partitioned into a set of local subsystems each represented by a subgraph of the global system TFPG model. Information flow between subsystems is achieved through special input and output nodes. A high level diagnoser integrates the diagnosis results of the local subsystems using an abstract high level model to obtain a globally consistent diagnosis of the system.