US 12,087,119 B2
Device and method for controlling door lock
Jongho Kim, Seongnam-si (KR); Myung-Hwa Son, Seongnam-si (KR); and Minsuk Sung, Seongnam-si (KR)
Assigned to Hanwha Vision Co., Ltd., Seongnam-si (KR)
Appl. No. 17/791,896
Filed by HANWHA TECHWIN CO., LTD., Seongnam-si (KR)
PCT Filed Jul. 21, 2020, PCT No. PCT/KR2020/009575
§ 371(c)(1), (2) Date Jul. 9, 2022,
PCT Pub. No. WO2021/157794, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 10-2020-0013447 (KR), filed on Feb. 5, 2020; and application No. 10-2020-0070093 (KR), filed on Jun. 10, 2020.
Prior Publication US 2023/0042025 A1, Feb. 9, 2023
Int. Cl. G06V 20/52 (2022.01); E05B 47/00 (2006.01); G06V 40/16 (2022.01); G06V 40/20 (2022.01); G07C 9/00 (2020.01); G07C 9/37 (2020.01); G08B 25/00 (2006.01)
CPC G07C 9/37 (2020.01) [G06V 40/172 (2022.01); G06V 40/174 (2022.01); G06V 40/20 (2022.01); G07C 9/00563 (2013.01); G08B 25/002 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A door lock control device associated with a door lock, the device comprising:
a door lock interface configured to communicate with the door lock;
an imaging device;
a controller configured to process images acquired through the imaging device; and
a storage medium,
wherein the controller is configured to:
determine each of a first object and a second object as one of an authorized person and an unauthorized person depending on whether each of the first object and the second object detected from the images matches authentication data read from the storage medium; and
control the door lock through a door lock interface with reference to a distance between the first object and the second object determined from the images when it is determined that the first object is the authorized person and the second object is the unauthorized person; and
control the door lock to perform a first action when the distance is smaller than a first threshold value and is greater than a second threshold value, and control the door lock to perform a second action when the distance is less than or equal to the second threshold value.