Patent ID: 8886489

Claim:
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: one or more pressure sensors configured to provide two or more pressure measurements; and a transmitter electrically coupled to the one or more pressure sensors and configured to transmit the two or more pressure measurements to the computational unit, 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: a training module; and an event detection module; 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.