Dr. Huanyong Cui Profile

Dr. Huanyong Cui

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Proceedings Article | 1 April 2024 Paper

Incremental perceptual vibration hashing autoencoder for machine condition monitoring

Fajia Li, Xiaoguang Li, Haining Liu, Mingyuan Zhang, Huanyong Cui

Proceedings Volume 13081, 130810M (2024) https://doi.org/10.1117/12.3025857

KEYWORDS: Data modeling, Machine learning, Feature extraction, Vibration, Data storage, Data processing, Binary data, Signal processing

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Feature extraction is of significant importance for machine condition monitoring, which extracts the potential machine condition information from monitored data. Autoencoder can extract the inherent structural feature in data, thus widely used for feature extraction from vibration signals. However, the training of autoencoder is a time-consuming process. Especially when facing a practical condition monitoring application in which numerous abnormal conditions emerge successively, an autoencoder needs to be retrained to adapt to the new faulty data, thus the training time multiplies. This paper develops the incremental perceptual vibration hashing autoencoder (IPVHAE), dedicated to mapping the inherent machine condition information in vibration signals into a compact, low-dimensional machine condition hash (MCH). An incremental learning approach based on parameter constraints is employed to facilitate the retraining of the IPVHAE on new data. The parameters of an autoencoder only need to be updated with the new data instead of all the data under available machine conditions. The effectiveness of the developed algorithm is verified using the Case Western Reserve University bearing dataset. Results show that the machine condition hash generated by the IPVHAE can balance low dimensionality with high discriminability, meanwhile minimizing the time and computing cost during the incremental learning process.

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