Background Load Denoising across Complex Load Based on Generative Adversarial Network to Enhance Load Identification
1
School of Computer Science and Engineering, Pusan National University, Busan 609735, Korea
2
IoT Research Center, Pusan National University, Busan 609735, Korea
3
Faculty of Information Technology, Hung Yen University of Technology and Education, Hung Yen 160000, Vietnam
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Sensors 2020, 20(19), 5674; https://doi.org/10.3390/s20195674
Received: 2 September 2020
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Revised: 28 September 2020
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Accepted: 29 September 2020
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Published: 5 October 2020
(This article belongs to the Special Issue Signal Processing for Intelligent Sensor Systems)
Non-Intrusive Load Monitoring (NILM) allows load identification of appliances through a single sensor. By using NILM, users can monitor their electricity consumption, which is beneficial for energy efficiency or energy saving. In advance NILM systems, identification of appliances on/off events should be processed instantly. Thus, it is necessary to use an extremely short period signal of appliances to shorten the time delay for users to acquire event information. However, acquiring event information from a short period signal raises another problem. The problem is target load feature to be easily mixed with background load. The more complex the background load has, the noisier the target load occurs. This issue certainly reduces the appliance identification performance. Therefore, we provide a novel methodology that leverages Generative Adversarial Network (GAN) to generate noise distribution of background load then use it to generate a clear target load. We also built a Convolutional Neural Network (CNN) model to identify load based on single load data. Then we use that CNN model to evaluate the target load generated by GAN. The result shows that GAN is powerful to denoise background load across the complex load. It yields a high accuracy of load identification which could reach 92.04%.
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Keywords:
NILM; complex background; denoising; load identification; GAN; CNN
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MDPI and ACS Style
Mukaroh, A.; Le, T.-T.-H.; Kim, H. Background Load Denoising across Complex Load Based on Generative Adversarial Network to Enhance Load Identification. Sensors 2020, 20, 5674. https://doi.org/10.3390/s20195674
AMA Style
Mukaroh A, Le T-T-H, Kim H. Background Load Denoising across Complex Load Based on Generative Adversarial Network to Enhance Load Identification. Sensors. 2020; 20(19):5674. https://doi.org/10.3390/s20195674
Chicago/Turabian StyleMukaroh, Afifatul, Thi-Thu-Huong Le, and Howon Kim. 2020. "Background Load Denoising across Complex Load Based on Generative Adversarial Network to Enhance Load Identification" Sensors 20, no. 19: 5674. https://doi.org/10.3390/s20195674
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