US 12,094,210 B2
Monitoring system, monitoring device, monitoring method, and non-transitory computer-readable medium
Yukihide Yoda, Tokyo (JP); Yoshiaki Aono, Tokyo (JP); and Koji Asahi, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/439,987
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Jan. 14, 2020, PCT No. PCT/JP2020/000889
§ 371(c)(1), (2) Date Sep. 16, 2021,
PCT Pub. No. WO2020/202694, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-068645 (JP), filed on Mar. 29, 2019.
Prior Publication US 2022/0172479 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06V 20/52 (2022.01); G06V 40/20 (2022.01); G08B 13/186 (2006.01); G08B 13/22 (2006.01)
CPC G06V 20/52 (2022.01) [G06V 40/25 (2022.01); G08B 13/186 (2013.01); G08B 13/22 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A monitoring system comprising:
an optical fiber laid in a monitoring area;
an authenticating unit configured to authenticate a person or vehicle passing through a gate for entering the monitoring area;
an optical fiber sensing unit configured to acquire, based on an optical signal received from the optical fiber, a parameter having a unique pattern corresponding to a pattern of action of the authenticated person or vehicle; and
an analyzing unit configured to identify the pattern of action of the authenticated person or vehicle based on the unique pattern of the parameter.