Fault Diagnosis of Multi-Sensor Oil System of Roadheader Based on Convolution Neural Network
Aiming at the problem that a single sensor cannot provide the data complementarity and multidimen-sional of the tunneling machine oil system in the long-term operation process,a fault diagnosis method of the tunne-ling machine multi-sensor oil system based on convolutional neural networks(CNN)is proposed.Firstly,the oil mo-nitoring method reflects the performance and state of the oil through the physical and chemical performance indicators of the lubricating oil and the wear particle information carried by the oil.It can directly learn the best features from the oil data without any form of conversion and feature extraction.Secondly,the data collected by multiple sensors are used as the input of CNN to diagnose the fault of the oil system.Finally,the proposed method is compared with other machine learning methods in the accuracy of fault state classification.The experimental results indicate that the diag-nostic accuracy of the proposed method is higher than that of other methods,thus achieving efficient diagnostic per-formance.