Patent ID: 8938367
Filing Date: 2015-01-20
Classification: B01D,F24F,G01L,G08B

Abstract:
1. A motion detecting device configured to detect movement by at least one person, animal, or one or more interior doors inside of a multi-room structure, the multi-room structure comprising a heating, ventilation, and air conditioning system, the heating, ventilation, and air conditioning system comprising an air handler configured to be located in a non-permanently sealed box in the multi-room structure, the motion detecting device comprises: a processing module configured to run on a computational unit; and a sensing device configured to be located in the air handler of the heating, ventilation, and air conditioning system, the sensing device further configured to detect static air pressure inside the air handler at two or more times; wherein: the sensing device comprises a first pressure sensor and a second pressure sensor; the processing module is configured to use the static air pressure at the two or more times to determine whether movement within an interior of the multi-room structure by the at least one person, animal, or one or more interior doors inside of the multi-room structure has occurred; and the processing module is further configured to use the static air pressure detected at the two or more times to determine if the movement was through a specific one of the one or more interior doors inside of the multi-room structure.