Title:
DISTRIBUTED OPTICAL-FIBER-BASED MOTION STATE ANALYSIS METHOD, SYSTEM AND DEVICE FOR EXCITATION SOURCE
Document Type and Number:
WIPO Patent Application WO/2024/055345
Kind Code:
A1
Abstract:
A distributed optical-fiber-based motion state analysis method, system and device for an excitation source. The analysis method comprises: acquiring vibration excitation signals of all detection points on a distributed optical fiber, which is laid in the same channel as an oil and gas pipeline (S101); obtaining an optical-fiber vibration data waterfall plot according to the vibration excitation signals (S102); obtaining a feature-connected domain of the excitation signals according to the optical-fiber vibration data waterfall plot (S103); determining a space-time series curve of the distributed optical fiber and a space-velocity series curve of same according to the feature-connected domain of the excitation signals (S104); and determining the motion state of a vibration excitation source according to the space-time series curve and the space-velocity series curve (S105). The present application realizes long-distance passive distributed sensing, the determination method is simple, calculation accuracy is high, and the residence point of a vibration source can be further determined when the motion state of the vibration source is determined, thereby facilitating the optimization of an alarm effect of an oil and gas pipeline safety monitoring system and reducing a false alarm rate of the system.
Inventors:
YANG YUE (CN)
DONG LEI (CN)
MING CHANGPENG (CN)
YU CAN (CN)
LUO XIANTING (CN)
DONG LEI (CN)
MING CHANGPENG (CN)
YU CAN (CN)
LUO XIANTING (CN)
Application Number:
PCT/CN2022/119926
Publication Date:
March 21, 2024
Filing Date:
September 20, 2022
Export Citation:
Assignee:
WUHAN WUTOS CO LTD (CN)
International Classes:
G01H9/00
Foreign References:
| CN111810768A | 2020-10-23 | |||
| US20180100388A1 | 2018-04-12 | |||
| CN114046867A | 2022-02-15 | |||
| CN108150836A | 2018-06-12 | |||
| CN111006849A | 2020-04-14 | |||
| US20220230539A1 | 2022-07-21 |
Attorney, Agent or Firm:
WUHAN ZHI JIA JOINT INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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