HVAC (Heating, Ventilation and Air-Conditioning) controls the temperature, humidity, and quality of the air in buildings to a set of chosen conditions. A significant amount of energy is wasted by malfunctioning or ill-maintained building systems. Faults relating to HVAC systems represent between 1% and 2.5% of total commercial building consumption. This report aims to map out the patent landscape associated with HVAC system fault detection.
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