Abstract
In the industrial plants, detection of abnormal events during the processes is a difficult task for human operators who need to monitor the production. In this work, the main aim is to detect anomalies in the industrial processes by an intelligent audio based solution for the new generation of factories. Therefore, this paper presents a Convolutional Autoencoder (CAE) based end-to-end unsupervised Acoustic Anomaly Detection (AAD) system to be used in the context of industrial plants and processes. In this research, a new industrial acoustic dataset has been created by gathering the audio data obtained from a number of videos of industrial processes, recorded in factories involving industrial tools and processes. Due to the fact that the anomalous events in real life are rather rare and the creation of these events is highly costly, anomaly event sounds are superimposed to regular factory soundscape by using different Signal-to-Noise Ratio (SNR) values. To show the effectiveness of the proposed system, the performances of the feature extraction and the AAD are evaluated. The comparison has been made between CAE, One-Class Support Vector Machine (OCSVM), and a hybrid approach of them (CAE-OCSVM) under various SNRs for different anomaly and process sounds. The results showed that CAE with the end-to-end strategy outperforms OCSVM while the respective results are close to the results of hybrid approach.
Original language | English |
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Title of host publication | 14th International Conference on Soft Computing Models in Industrial and Environmental Applications SOCO 2019, Proceedings |
Editors | José António Sáez Muñoz, Emilio Corchado, Héctor Quintián, Francisco Martínez Álvarez, Alicia Troncoso Lora |
Publisher | Springer Verlag |
Pages | 432-442 |
Number of pages | 11 |
ISBN (Print) | 9783030200541 |
DOIs | |
Publication status | Published - 2020 |
Event | 14th International Conference on Soft Computing Models in Industrial and Environmental Applications, SOCO 2019 - Seville, Spain Duration: 13 May 2019 → 15 May 2019 |
Publication series
Name | Advances in Intelligent Systems and Computing |
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Volume | 950 |
ISSN (Print) | 2194-5357 |
ISSN (Electronic) | 2194-5365 |
Conference
Conference | 14th International Conference on Soft Computing Models in Industrial and Environmental Applications, SOCO 2019 |
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Country/Territory | Spain |
City | Seville |
Period | 13/05/19 → 15/05/19 |
Bibliographical note
Publisher Copyright:© 2020, Springer Nature Switzerland AG.
Keywords
- Anomaly detection
- Audio feature extraction
- Convolutional autoencoders
- Industrial processes
- One-Class Support Vector Machine
- Signal-to-Noise Ratio