LIU Yun-long, XIE Shou-sheng, ZHENG Xiao-fei, et al. Fault diagnosis of aero-engine sensor based on deep learning[J]. 2017, 36(9): 147-150. DOI: 10.13873/j.1000-9787(2017)09-0147-04.
Aiming at the problems of traditional back propogation( BP) neural network and support vector machine( SVM) learning algorithm
such as over fitting
dimension disaster and difficulty of parameter selection
put forward an aircraft engine sensor fault detection method learning algorithm based on deep learning algorithm.Preprocess the multi dimensional data acquired by aero-engine parameter recorder; fault detection model based on the deep belief network( DBN) is set up; fault detection model is trained using proprocessed data
after DBN fault detection model characteristics learning layer by layer
sensor fault detection is realized. It is shown from the simulation results
in the absence of artificial feature extraction and feature extraction
accuracy based on DBN fault detection is higher than that of BP neural network and SVM model.