公开(公告)号：WO2021202072A1

公开(公告)日：2021-10-07

申请号：PCT/US2021/021797

申请日：2021-03-10

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： HUANG, Ming-Fang ,  WANG, Ting ,  XIA, Tiejun ,  WELLBROCK, Glenn ,  AONO, Yoshiaki

IPC: H04B10/25 ,  G01V1/00 ,  G01K11/32 ,  G08G1/04 ,  G01D5/35338 ,  G01H9/004

Abstract: Aspects of the present disclosure describe hybrid distributed fiber optic sensing systems, methods, and structures that advantageously are extensions of existing fiber optic infrastructure and provide distributed fiber optic sensing (DFOS) functionality to the existing infrastructure

公开(公告)号：WO2022046951A1

公开(公告)日：2022-03-03

申请号：PCT/US2021/047623

申请日：2021-08-25

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： HAN, Shaobo ,  HUANG, Ming-Fang ,  CHEN, Yuheng ,  SALEMI, Milad ,  WANG, Ting ,  AONO, Yoshiaki ,  XIA, Tiejun ,  WELLBROCK, Glenn

IPC: G01H9/00 ,  G01D5/353 ,  G01N29/24

Abstract: Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously enable anomaly detection resulting from construction or other activity based on image processing that may advantageously detect / notify / prevent damage to a fiber optic network infrastructure before such damage occurs.

公开(公告)号：WO2020198433A1

公开(公告)日：2020-10-01

申请号：PCT/US2020/024888

申请日：2020-03-26

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： WANG, Ting ,  HUANG, Ming-Fang ,  XIA, Tiejun ,  WELLBROCK, Glenn ,  LI, Yaowen ,  JI, Philip

IPC: H04B10/077 ,  H04B10/071 ,  H04B10/548

Abstract: Aspects of the present disclosure describe optical fiber sensing systems, methods and structures disclosing a distributed fiber sensor network constructed on an existing, live network, data carrying, optical fiber telecommunications infrastructure to detect temperatures, acoustic effects, and vehicle traffic among others. Of particular significance, sensing systems, methods, and structures according to aspects of the present disclosure may advantageously identify specific network locations relative to manholes/handholes and environmental conditions within those manholes/handholes namely, normal, flooded, frozen/iced, etc.