Deep Learning Model for Industrial Leakage Detection Using Acoustic Emission Signal

• Main Authors: Masoumeh Rahimi, Alireza Alghassi, Mominul Ahsan, Julfikar Haider
• Format: Article
• Language: English
• Published: MDPI AG 2020-11-01
• Series: Informatics
• Subjects: 1D convolution neural network; FFT; fault detection; feature extraction
• Online Access: https://www.mdpi.com/2227-9709/7/4/49

Intelligent fault diagnosis methods have replaced time consuming and unreliable human analysis, increasing anomaly detection efficiency. Deep learning models are clear cut techniques for this purpose. This paper’s fundamental purpose is to automatically detect leakage in tanks during production with more reliability than a manual inspection, a common practice in industries. This research proposes an inspection system to predict tank leakage using hydrophone sensor data and deep learning algorithms after production. In this paper, leak detection was investigated using an experimental setup consisting of a plastic tank immersed underwater. Three different techniques for this purpose were implemented and compared with each other, including fast Fourier transform (FFT), wavelet transforms, and time-domain features, all of which are followed with 1D convolution neural network (1D-CNN). Applying FFT and converting the signal to a 1D image followed by 1D-CNN showed better results than other methods. Experimental results demonstrate the effectiveness and the superiority of the proposed methodology for detecting real-time leakage inaccuracy.