公开(公告)号：US12072233B2

公开(公告)日：2024-08-27

申请号：US17716403

申请日：2022-04-08

Applicant: NEC Laboratories America, Inc.

Inventor： Yangmin Ding ,  Yue Tian ,  Sarper Ozharar ,  Yuanda Xu ,  Ting Wang

IPC: G01H9/00 ,  G06N3/04 ,  G06N3/08 ,  G06N20/20 ,  G06Q50/06

CPC classification number: G01H9/004 ,  G06N3/04 ,  G06N3/08 ,  G06N20/20 ,  G06Q50/06

Abstract: Systems and methods for reducing work conflicts is provided. The method includes receiving a vibrational signal from a utility pole; identifying a location and type of field work on the utility pole from one or more features of the vibrational signal utilizing a trained neural network; and communicating the location and type of field work to a third party.

公开(公告)号：US20240055842A1

公开(公告)日：2024-02-15

申请号：US18492902

申请日：2023-10-24

Applicant: NEC Laboratories America, Inc.

Inventor： Yangmin Ding ,  Yuanda Xu ,  Sarper Ozharar ,  Yue Tian ,  Ting Wang

IPC: H02G1/02 ,  G01S19/01 ,  G01D5/353

CPC classification number: H02G1/02 ,  G01S19/01 ,  G01D5/35354

Abstract: Systems and methods for performing the dynamic anomaly localization of utility pole aerial/suspended/supported wires/cables by distributed fiber optic sensing. In sharp contrast to the prior art, our inventive systems and methods according to aspects of the present disclosure advantageously identify a “location region” on a utility pole supporting an affected wire/cable, thereby permitting the identification and reporting of service personnel that are uniquely responsible for responding to such anomalous condition(s).

公开(公告)号：US11846569B2

公开(公告)日：2023-12-19

申请号：US17715002

申请日：2022-04-06

Applicant: NEC Laboratories America, Inc.

Inventor： Yue Tian ,  Sarper Ozharar ,  Yangmin Ding ,  Shaobo Han ,  Ting Wang

IPC: G01M7/08 ,  G01H9/00 ,  G01D5/353

CPC classification number: G01M7/08 ,  G01D5/35361 ,  G01H9/004

Abstract: A method of utility pole integrity assessment by distributed fiber optic sensing/distributed acoustic sensing (DFOS/DAS) employing existing telecommunications fiber optic cable as a sensor. The fiber optic cable is suspended aerially from a plurality of utility poles and a machine learning model is developed during training by mechanically exciting the utility poles. Once developed, and in sharp contrast to the prior art, the machine learning model—in conjunction with DFOS/DAS operation—determines an integrity assessment for a plurality of the utility poles aerially suspending the fiber optic cable from a mechanical impact of a single pole.

公开(公告)号：US11680849B2

公开(公告)日：2023-06-20

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: G06F30/23 ,  G01H9/00 ,  G08B21/18 ,  G06N20/00

CPC classification number: G01H9/004 ,  G08B21/182 ,  G06N20/00

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.

公开(公告)号：US20220326070A1

公开(公告)日：2022-10-13

申请号：US17716403

申请日：2022-04-08

Applicant: NEC Laboratories America, Inc.

Inventor： Yangmin Ding ,  Yue Tian ,  Sarper Ozharar ,  Yuanda Xu ,  Ting Wang

IPC: G01H9/00 ,  G06N3/08 ,  G06N3/04 ,  G06N20/20

Abstract: Systems and methods for reducing work conflicts is provided. The method includes receiving a vibrational signal from a utility pole; identifying a location and type of field work on the utility pole from one or more features of the vibrational signal utilizing a trained neural network; and communicating the location and type of field work to a third party.

公开(公告)号：US20220236105A1

公开(公告)日：2022-07-28

申请号：US17583168

申请日：2022-01-24

Applicant: NEC Laboratories America, Inc.

Inventor： Sarper Ozharar ,  Yue Tian ,  Ting Wang ,  Yangmin Ding

IPC: G01H9/00 ,  G01D5/353

Abstract: An advance in the art is made according to aspects of the present disclosure directed to the detection and localization of a substantially static weight situated on aerial telecommunications fiber optic cable through the effect of phase-distributed acoustic sensing (ϕ-DAS) and signal analysis of ambient data. In sharp contrast to the prior art, our inventive method does not require a special optical fiber arrangement or type of fiber nor is it susceptible to range limitations that plague the prior art.