A general anomaly detection framework for fleet-based condition
monitoring of machines
- URL: http://arxiv.org/abs/1912.12941v3
- Date: Tue, 7 Jan 2020 11:06:06 GMT
- Title: A general anomaly detection framework for fleet-based condition
monitoring of machines
- Authors: Kilian Hendrickx, Wannes Meert, Yves Mollet, Johan Gyselinck, Bram
Cornelis, Konstantinos Gryllias, Jesse Davis
- Abstract summary: Machine failures decrease up-time and can lead to extra repair costs or even to human casualties and environmental pollution.
Recent condition monitoring techniques use artificial intelligence in an effort to avoid time-consuming manual analysis and handcrafted feature extraction.
This work proposes an unsupervised, generic, anomaly detection framework for fleet-based condition monitoring.
- Score: 16.51849885526826
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Machine failures decrease up-time and can lead to extra repair costs or even
to human casualties and environmental pollution. Recent condition monitoring
techniques use artificial intelligence in an effort to avoid time-consuming
manual analysis and handcrafted feature extraction. Many of these only analyze
a single machine and require a large historical data set. In practice, this can
be difficult and expensive to collect. However, some industrial condition
monitoring applications involve a fleet of similar operating machines. In most
of these applications, it is safe to assume healthy conditions for the majority
of machines. Deviating machine behavior is then an indicator for a machine
fault. This work proposes an unsupervised, generic, anomaly detection framework
for fleet-based condition monitoring. It uses generic building blocks and
offers three key advantages. First, a historical data set is not required due
to online fleet-based comparisons. Second, it allows incorporating domain
expertise by user-defined comparison measures. Finally, contrary to most
black-box artificial intelligence techniques, easy interpretability allows a
domain expert to validate the predictions made by the framework. Two use-cases
on an electrical machine fleet demonstrate the applicability of the framework
to detect a voltage unbalance by means of electrical and vibration signatures.
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