IP Library Granted Patent US 12,352,619
Granted Patent B2
US 12,352,619 · App. 17/908,078 · Granted Jul 8, 2025

Optical fiber sensing system, optical fiber sensing method, and optical fiber sensing apparatus

Inventors: Tadayuki Iwano (Tokyo, JP); Yoshiaki Aono (Tokyo, JP); Yoshinori Kitahara (Tokyo, JP); Satoru Ishii (Tokyo, JP)
Assignee: NEC CORPORATION
G01H9/006G01L1/242G01D5/268
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Quick Facts
Patent No.
US 12,352,619
App. No.
17/908,078
Granted
Jul 8, 2025
Kind
B2
Abstract

An optical fiber sensing system according to the present disclosure includes: an optical fiber network ( 10 ) configured to detect first sensing information related to a first monitoring target and second sensing information related to a second monitoring target; a reception unit ( 21 ) configured to receive an optical signal from the optical fiber network ( 10 ); a specification unit ( 22 ) configured to specify a first monitoring target based on first sensing information superimposed on the optical signal and specify a second monitoring target based on second sensing information superimposed on the optical signal, and a provision unit ( 23 ) configured to provide information related to the first monitoring target and information related to the second monitoring target specified by the specification unit ( 22 ) for a service providing destination.

Claims (62)

1. An optical fiber sensing system comprising:

an optical fiber network that detects first sensing information related to a first monitoring target and second sensing information related to a second monitoring target;

a memory storing instructions; and

at least one processor, by executing the instructions, configured to implement:

a reception unit configured to receive an optical signal from the optical fiber network;

a specification unit configured to specify the first monitoring target based on the first sensing information superimposed on the optical signal and specify the second monitoring target based on the second sensing information superimposed on the optical signal; and

a provision unit configured to provide information related to the first monitoring target and information related to the second monitoring target specified by the specification unit for a service providing destination,

wherein the provision unit is further configured to:

provide the information related to the first monitoring target specified by the specification unit for a first service providing destination, and

provide the information related to the second monitoring target specified by the specification unit for a second service providing destination.

2. The optical fiber sensing system according to claim 1 , wherein

the specification unit specifies the first monitoring target based on the first sensing information using an analysis function in accordance with the first service providing destination, and

the specification unit specifies the second monitoring target based on the second sensing information using an analysis function in accordance with the second service providing destination.

3. The optical fiber sensing system according to claim 1 , wherein the information related to the first monitoring target provided for the first service providing destination and the information related to the second monitoring target provided for the second service providing destination are kinds of information associated with each other.

4. The optical fiber sensing system according to claim 1 , comprising a plurality of optical fiber networks, wherein

the specification unit specifies the first monitoring target based on the first sensing information included in the optical signal transmitted from one of the plurality of optical fiber networks, and

the specification unit specifies the second monitoring target based on the second sensing information included in the optical signal transmitted from one of the plurality of optical fiber networks.

5. The optical fiber sensing system according to claim 1 , wherein

the specification unit specifies the first monitoring target based on a specific dynamic variation pattern in accordance with the first monitoring target, the specific dynamic variation pattern being included in the first sensing information, and

the specification unit specifies the second monitoring target based on a specific dynamic variation pattern in accordance with the second monitoring target, the specific dynamic variation pattern being included in the second sensing information.

6. The optical fiber sensing system according to claim 1 , wherein the first sensing information and the second sensing information each include at least one of a vibration, a sound, and a temperature.

7. An optical fiber sensing method by an optical fiber sensing system, the method comprising:

receiving an optical signal from an optical fiber network that detects first sensing information related to a first monitoring target and second sensing information related to a second monitoring target;

specifying the first monitoring target based on the first sensing information superimposed on the optical signal and specifying the second monitoring target based on the second sensing information superimposed on the optical signal; and

providing information related to the first monitoring target and information related to the second monitoring target specified in the specifying operation for a service providing destination,

wherein the information related to the first monitoring target specified in the specifying operation is provided for a first service providing destination, and

wherein the information related to the second monitoring target specified in the specifying operation is provided for a second service providing destination.

8. The optical fiber sensing method according to claim 7 , wherein

in the specifying operation,

the first monitoring target is specified based on the first sensing information using an analysis function in accordance with the first service providing destination, and

the second monitoring target is specified based on the second sensing information using an analysis function in accordance with the second service providing destination.

9. The optical fiber sensing method according to claim 7 , wherein the information related to the first monitoring target provided for the first service providing destination and the information related to the second monitoring target provided for the second service providing destination are kinds of information associated with each other.

10. The optical fiber sensing method according to claim 7 , wherein

a plurality of optical fiber networks are provided in the optical fiber sensing system, and

in the specifying operation,

the first monitoring target is specified based on the first sensing information included in the optical signal transmitted from one of the plurality of optical fiber networks, and

the second monitoring target is specified based on the second sensing information included in the optical signal transmitted from one of the plurality of optical fiber networks.

11. The optical fiber sensing method according to claim 7 , wherein

in the specifying operation,

the first monitoring target is specified based on a specific dynamic variation pattern in accordance with the first monitoring target, the specific dynamic variation pattern being included in the first sensing information, and

the second monitoring target is specified based on a specific dynamic variation pattern in accordance with the second monitoring target, the specific dynamic variation pattern being included in the second sensing information.

12. An optical fiber sensing apparatus comprising:

a memory storing instructions; and

at least one processor, by executing the instructions, configured to implement:

a reception unit configured to receive an optical signal from an optical fiber network that detects first sensing information related to a first monitoring target and second sensing information related to a second monitoring target;

a specification unit configured to specify the first monitoring target based on the first sensing information superimposed on the optical signal and specify the second monitoring target based on the second sensing information superimposed on the optical signal; and

a provision unit configured to provide information related to the first monitoring target and information related to the second monitoring target specified by the specification unit for a service providing destination

wherein the provision unit is further configured to:

provide the information related to the first monitoring target specified by the specification unit for a first service providing destination, and

provide the information related to the second monitoring target specified by the specification unit for a second service providing destination.

13. The optical fiber sensing apparatus according to claim 12 , wherein

the specification unit specifies the first monitoring target based on the first sensing information using an analysis function in accordance with the first service providing destination, and

the specification unit specifies the second monitoring target based on the second sensing information using an analysis function in accordance with the second service providing destination.

14. The optical fiber sensing apparatus according to claim 12 , wherein the information related to the first monitoring target provided for the first service providing destination and the information related to the second monitoring target provided for the second service providing destination are kinds of information associated with each other.

15. The optical fiber sensing apparatus according to claim 12 , wherein

a plurality of optical fiber networks are provided,

the specification unit specifies the first monitoring target based on the first sensing information included in the optical signal transmitted from one of the plurality of optical fiber networks, and

the specification unit specifies the second monitoring target based on the second sensing information included in the optical signal transmitted from one of the plurality of optical fiber networks.

16. The optical fiber sensing apparatus according to claim 12 , wherein

the specification unit specifies the first monitoring target based on a specific dynamic variation pattern in accordance with the first monitoring target, the specific dynamic variation pattern being included in the first sensing information, and

the specification unit specifies the second monitoring target based on a specific dynamic variation pattern in accordance with the second monitoring target, the specific dynamic variation pattern being included in the second sensing information.

17. The optical fiber sensing apparatus according to claim 12 , wherein the first sensing information and the second sensing information each include at least one of a vibration, a sound, and a temperature.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2022
From: IWANO, TADAYUKI; AONO, YOSHIAKI; KITAHARA, YOSHINORI; ISHII, SATORU
To: NEC CORPORATION,
Reel/Frame 060949/0382 →
Continuity (1)
Related Publication 20230112149A1 · Apr 13, 2023
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