Preventive Maintenance of Centralized HVAC Systems : Use of Acoustic Sensors , Feature Extraction , and Unsupervised Learning


In this paper, we propose a predictive maintenance scheme for centralized HVAC systems by autonomous monitoring and analyzing their acoustic emissions. Our proposed solution allows a building to be retrofitted to monitor its HVAC without having to modify the existing infrastructure. Our approach is to employ an energy-efficient, low-cost, and distributed… (More)

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