Patent ID: 8886489
Filing Date: 2014-11-11
Classification: B01D,F24F,G01L,G08B

Abstract:
1. A motion detecting device configured to detect whether one or more movement events by at least one person, animal, door, or window have occurred, the motion detecting device comprises: a processing module configured to run on a computational unit; and a sensing device comprising: wherein: the processing module is configured to use the two or more pressure measurements to determine whether the one or more movement events by the at least one person, animal, door, or window have occurred; the sensing device is configured to be placed in at least one of ductwork of a heating, ventilation, and air conditioning system or an air handler of the heating, ventilation, and air conditioning system; the processing module comprises: the training module is configured to correlate a first event of the one or more movement events with a first change in pressure and a second event of the one or more movement events with a second change in pressure; and the event detection module is configured to use the two or more pressure measurements to identify a third event of the one or more movement events.