公开(公告)号：US20210318504A1

公开(公告)日：2021-10-14

申请号：US17228577

申请日：2021-04-12

Applicant: NEC Laboratories America, Inc.

Inventor： Yue TIAN

IPC: G02B6/44 ,  H04B10/27 ,  G01S5/16

Abstract: Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) distributed acoustic sensing (DAS) systems, methods, and structures that advantageously provide the localization of utility poles along a route of fiber optic cable.

公开(公告)号：US20210318163A1

公开(公告)日：2021-10-14

申请号：US17227313

申请日：2021-04-10

Applicant: NEC Laboratories America, Inc.

Inventor： Yangmin DING ,  Yue TIAN ,  Sarper Ozharar ,  Ting Wang

IPC: G01H9/00 ,  G08B21/18

Abstract: Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously enable and/or facilitate the continuous monitoring and identification of damaged utility poles by employing a DFOS distributed acoustic sensing (DAS) methodology in conjunction with a finite element analysis and operational modal analysis. Of particular advantage and in further contrast to the prior art, systems, methods, and structures according to aspects of the present disclosure utilize existing optical fiber supported/suspended by the utility poles as a sensing medium for the DFOS/DAS operation.