公开(公告)号：US20200166384A1

公开(公告)日：2020-05-28

申请号：US16261631

申请日：2019-01-30

Applicant: Dalian University of Technology

Inventor： Dapeng Zhou ,  Wei Peng

IPC: G01D5/353 ,  G01K11/32 ,  G01L1/24

Abstract: The present invention discloses a computational distributed fiber-optic sensing method and system. The method includes: determining a signal source for modulating intensity of incident light, where the signal source is a binary sequence; using an optical pulse sequence obtained after modulation is performed using the signal source, as an incident light signal, and emitting the incident light signal to an optical fiber; acquiring, according to specified sampling frequency, a scattered light signal obtained through optical fiber scattering; determining, according to the incident light signal and the scattered light signal, a time-domain reconstructed image of a to-be-detected light signal by using a time domain-based differential ghost imaging protocol; and determining a sensing signal of the optical fiber according to the time-domain reconstructed image of the to-be-detected light signal. The computational distributed fiber-optic sensing method and system provided in the present invention feature low sampling frequency, low device complexity, and low costs.

公开(公告)号：US11105658B2

公开(公告)日：2021-08-31

申请号：US16261631

申请日：2019-01-30

Applicant: Dalian University of Technology

Inventor： Dapeng Zhou ,  Wei Peng

IPC: G01D5/353 ,  G01K11/32 ,  G01L1/24 ,  G01K11/322

Abstract: The present invention discloses a computational distributed fiber-optic sensing method and system. The method includes: determining a signal source for modulating intensity of incident light, where the signal source is a binary sequence; using an optical pulse sequence obtained after modulation is performed using the signal source, as an incident light signal, and emitting the incident light signal to an optical fiber; acquiring, according to specified sampling frequency, a scattered light signal obtained through optical fiber scattering; determining, according to the incident light signal and the scattered light signal, a time-domain reconstructed image of a to-be-detected light signal by using a time domain-based differential ghost imaging protocol; and determining a sensing signal of the optical fiber according to the time-domain reconstructed image of the to-be-detected light signal. The computational distributed fiber-optic sensing method and system provided in the present invention feature low sampling frequency, low device complexity, and low costs.

公开(公告)号：US20210180998A9

公开(公告)日：2021-06-17

申请号：US16261631

申请日：2019-01-30

Applicant: Dalian University of Technology

Inventor： Dapeng Zhou ,  Wei Peng

IPC: G01D5/353 ,  G01K11/32 ,  G01L1/24

Abstract: The present invention discloses a computational distributed fiber-optic sensing method and system. The method includes: determining a signal source for modulating intensity of incident light, where the signal source is a binary sequence; using an optical pulse sequence obtained after modulation is performed using the signal source, as an incident light signal, and emitting the incident light signal to an optical fiber; acquiring, according to specified sampling frequency, a scattered light signal obtained through optical fiber scattering; determining, according to the incident light signal and the scattered light signal, a time-domain reconstructed image of a to-be-detected light signal by using a time domain-based differential ghost imaging protocol; and determining a sensing signal of the optical fiber according to the time-domain reconstructed image of the to-be-detected light signal. The computational distributed fiber-optic sensing method and system provided in the present invention feature low sampling frequency, low device complexity, and low costs.