US 12,306,639 B2
Smart detection system with multiple sensors for detecting same event
Yi-Hsien Ko, Hsin-Chu County (TW); Yen-Min Chang, Hsin-Chu County (TW); and Nien-Tse Chen, Hsin-Chu County (TW)
Assigned to PIXART IMAGING INC., Hsin-Chu County (TW)
Filed by PixArt Imaging Inc., Hsin-Chu County (TW)
Filed on Feb. 22, 2024, as Appl. No. 18/583,903.
Application 18/583,903 is a continuation of application No. 17/460,660, filed on Aug. 30, 2021, granted, now 11,953,913.
Application 17/460,660 is a continuation of application No. 16/398,778, filed on Apr. 30, 2019, granted, now 11,137,770.
Prior Publication US 2024/0231364 A1, Jul. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G05D 1/00 (2024.01); G05D 1/224 (2024.01); G05D 1/243 (2024.01); G05D 1/247 (2024.01); G05D 1/249 (2024.01); G05D 1/646 (2024.01)
CPC G05D 1/0276 (2013.01) [G05D 1/0038 (2013.01); G05D 1/0212 (2013.01); G05D 1/0234 (2013.01); G05D 1/0246 (2013.01); G05D 1/224 (2024.01); G05D 1/243 (2024.01); G05D 1/247 (2024.01); G05D 1/249 (2024.01); G05D 1/646 (2024.01)] 19 Claims
OG exemplary drawing
 
12. A smart detection system, comprising:
a first sensor, arranged at a first position in an operation area, and configured to send a first event signal in response to an event being detected;
a first image sensor, arranged at the first position in the operation area;
a second sensor, arranged at a second position in the operation area, and configured to send a second event signal in response to the same event being detected;
a second image sensor, arranged at the second position in the operation area; and
a central server, configured to
receive the first event signal and the second event signal,
identify an event position of said same event in the operation area according to at least one of
a first signal strength of the first event signal determined by a first distance between the first sensor and the same event, and a second signal strength of the second event signal determined by a second distance between the second sensor and the same event, and
a timing sequence of receiving the first and second event signals, which are respectively determined by the first distance and the second distance, received by the central server,
turn on the first image sensor upon the event position being at the first position, and
turn on the second image sensor upon the event position being at the second position.