US 12,073,366 B2
Arrival detection for battery-powered optical sensors
Kelby Green, Mountain View, CA (US); and Dan Ryan, Mountain View, CA (US)
Assigned to VergeSense, Inc., Mountain View, CA (US)
Filed by VergeSense, Inc., Mountain View, CA (US)
Filed on Nov. 14, 2022, as Appl. No. 17/986,753.
Application 17/986,753 is a continuation of application No. 17/138,784, filed on Dec. 30, 2020, granted, now 11,532,163.
Application 17/138,784 is a continuation of application No. 16/820,603, filed on Mar. 16, 2020, granted, now 10,915,759, issued on Feb. 9, 2021.
Claims priority of provisional application 62/819,288, filed on Mar. 15, 2019.
Prior Publication US 2023/0096936 A1, Mar. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06Q 10/1093 (2023.01); G06T 7/00 (2017.01); G06T 7/70 (2017.01); G06V 10/147 (2022.01); G06V 10/764 (2022.01); G06V 10/82 (2022.01); G06V 20/52 (2022.01); G06V 40/10 (2022.01)
CPC G06Q 10/1093 (2013.01) [G06T 7/70 (2017.01); G06T 7/97 (2017.01); G06V 10/147 (2022.01); G06V 10/764 (2022.01); G06V 10/82 (2022.01); G06V 20/52 (2022.01); G06V 20/53 (2022.01); G06V 40/10 (2022.01); G06T 2207/30196 (2013.01); G06T 2207/30232 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
accessing an occupancy status of a workspace within a work area;
in response to the occupancy status indicating vacancy of the workspace:
at a first time, recording a first image of the workspace at a sensor block;
at a second time succeeding the first time by a first time interval, recording a second image of the workspace at the sensor block; and
detecting human arrival at the workspace based on features detected in the first image and the second image;
in response to detecting human arrival at the workspace:
at a third time, recording a third image of the workspace at the sensor block; and
detecting occupancy in the workspace, at the third time, based on features detected in the third image; and
in response to detecting occupancy in the workspace:
updating the occupancy status of the workspace to indicate occupancy;
at a fourth time succeeding the third time by a second time interval longer than the first time interval, recording a fourth image of the workspace at the sensor block; and
detecting continued occupancy in the workspace from the third time to the fourth time based on features detected in the fourth image.