US 12,249,083 B2
Occupant counting device
James P. Steiner, Royersford, PA (US)
Assigned to Lutron Technology Company LLC, Coopersburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on Feb. 9, 2024, as Appl. No. 18/437,891.
Application 18/437,891 is a continuation of application No. 18/139,579, filed on Apr. 26, 2023, granted, now 11,935,251.
Application 18/139,579 is a continuation of application No. 17/405,703, filed on Aug. 18, 2021, granted, now 11,669,981, issued on Jun. 6, 2023.
Application 17/405,703 is a continuation of application No. 16/549,984, filed on Aug. 23, 2019, granted, now 11,127,144, issued on Sep. 21, 2021.
Claims priority of provisional application 62/783,525, filed on Dec. 21, 2018.
Claims priority of provisional application 62/722,555, filed on Aug. 24, 2018.
Prior Publication US 2024/0185439 A1, Jun. 6, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 7/277 (2017.01); G01S 5/02 (2010.01); G01S 13/86 (2006.01); G06T 7/136 (2017.01); G06T 7/215 (2017.01)
CPC G06T 7/277 (2017.01) [G01S 5/0294 (2013.01); G01S 13/867 (2013.01); G06T 7/136 (2017.01); G06T 7/215 (2017.01)] 20 Claims
OG exemplary drawing
 
1. A device configured to detect an occupant entering or exiting a space, the device comprising:
a detection circuit configured to detect the occupant in a coverage area of the space and generate one or more signals indicating a location of the occupant in the coverage area; and
a control circuit configured to:
receive the one or more signals from the detection circuit;
determine movements of the occupant through a plurality of zones of the coverage area based on the one or more signals, wherein the plurality of zones comprises a first zone, a second zone, and a third zone, the first zone comprising an area outside of the space and adjacent to an entry location of the space, the second zone comprising an area at the entry location, and the third zone comprising an area inside of the space and adjacent to the entry location;
determine that the occupant has entered the space in response to determining that the occupant has moved from the first zone to the third zone through the second zone; and
determine that the occupant has exited the space in response to determining that the occupant has moved from the third zone to the first zone through the second zone.