Diagnostic Bayesian Networks auto-construction and diagnostic strategy design based on multi-signal model
Shigang Zhang, Zheng Fa Hu · 2010
Based on multi-signal model, a novel diagnostic Bayesian networks auto-construction method is proposed in this paper. Combined with information entropy theory, a diagnostic strategy with the ability of sequential fault diagnosis, multi-fault diagnosis and coupling faults diagnosis is designed. In order to deal with uncertain problems and increase diagnostic accuracy, the self adjustment method of diagnostic Bayesian networks (DBN) is also discussed. The effectiveness of the proposed method is verified by the application on a diesel engine test and diagnosis process.