CPC G01L 23/32 (2013.01) [G08B 13/08 (2013.01); H04M 1/72454 (2021.01); G08B 13/1672 (2013.01); G08B 13/20 (2013.01); G08B 29/183 (2013.01); G08B 29/188 (2013.01); H04M 1/72421 (2021.01)] | 20 Claims |
1. A method, comprising:
collecting air pressure signals using a pressure sensor, the air pressure signals indicative of a change in pressure between an interior and an exterior of a building;
collecting sound signals using a sound sensor, the sound signals indicative of an audible event occurring in an area in a vicinity of a building opening;
sensing pressure peaks occurring in the air pressure signals;
sensing sound pulses occurring in the sound signals; and
detecting a joint occurrence of a pressure peak in the air pressure signals and a sound pulse in the sound signals, the joint occurrence being indicative of an opening/closing event of the building opening.
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