Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (5): 1747-1756.doi: 10.12305/j.issn.1001-506X.2022.05.38

• Reliability • Previous Articles     Next Articles

Remaining useful life prediction based on multi-source information fusion and HMM

Lin HUANG, Li GONG*, Wei JIANG, Kangbo WANG   

  1. Ship Comprehensive Test and Training Base, Navy University of Engineering, Wuhan 430033, China
  • Received:2021-02-20 Online:2022-05-01 Published:2022-05-16
  • Contact: Li GONG

Abstract:

Aiming at the problem of equipment remaining useful life prediction, a prediction method based on multi-source information fusion and hidden Markov model is proposed. Firstly, a multi-source sensor data fusion method based on signal-to-noise ratio of sensor and principal component analysis (PCA) dimensionality reduction is proposed to solve the problems of complex engine structure and multiple monitoring data parameters.On this basis, the Gaussian mixture hidden Markov model is trained using the sample data. At the same time, in order to reduce the deviation of model and avoid the risk of over fitting, a "customized" strategy training method is proposed. The trained model can be used for system health status recognition and remaining useful life prediction. Finally, the effectiveness of the proposed method is verified by the aeroengine simulation data set published by National Aeronautics and Space Administration, and compared with several representative literature methods with high prediction accuracy.

Key words: multi-source information fusion, hidden Markov model, remaining useful life, model training

CLC Number: 

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