Title:
STANDING WAVE HALF-WAVELENGTH DETERMINING METHOD AND APPARATUS IN OPGW OPTICAL CABLE, DEVICE, STORAGE MEDIUM, AND COMPUTER PROGRAM PRODUCT
Document Type and Number:
WIPO Patent Application WO/2023/020230
Kind Code:
A1
Abstract:
The present invention relates to the technical field of power transmission line safety control, and provides a standing wave half-wavelength determining method and apparatus in an OPGW optical cable, a device, a storage medium, and a computer program product. The method comprises the following steps: acquiring phase radians of each grating reflection point at a plurality of sampling time points on the basis of a grating array in a sensing optical fiber of an OPGW optical cable under detection; determining phase radian differences between adjacent sampling time points of each grating reflection point on the basis of the phase radians of each grating reflection point at the plurality of sampling time points; determining a phase radian difference of each grating reflection point on the basis of the phase radian differences between the adjacent sampling time points of each grating reflection point; obtaining two target grating reflection points in the plurality of grating reflection points, wherein the phase radian differences of the two target grating reflection points are minimum values, and the difference between the phase radian differences of the two target grating reflection points is less than a preset threshold; and determining the distance between the two target grating reflection points to obtain the half-wavelength of a standing wave.
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Inventors:
HOU JIYONG (CN)
FENG XUEBIN (CN)
WU JIAN (CN)
YU QIUSHENG (CN)
ZHAN SIJIE (CN)
FENG XUEBIN (CN)
WU JIAN (CN)
YU QIUSHENG (CN)
ZHAN SIJIE (CN)
Application Number:
PCT/CN2022/108350
Publication Date:
February 23, 2023
Filing Date:
July 27, 2022
Export Citation:
Assignee:
CHINA ELECTRIC POWER RES INST (CN)
STATE GRID CORP CHINA (CN)
INFORMATION AND COMMUNICATION COMPANY OF STATE GRID SHANDONG ELECTRIC POWER COMPANY (CN)
STATE GRID CORP CHINA (CN)
INFORMATION AND COMMUNICATION COMPANY OF STATE GRID SHANDONG ELECTRIC POWER COMPANY (CN)
International Classes:
G01J9/00
Foreign References:
| CN113691309A | 2021-11-23 | |||
| CN105157812A | 2015-12-16 | |||
| CN106487461A | 2017-03-08 | |||
| CN110595604A | 2019-12-20 | |||
| CN109342022A | 2019-02-15 |
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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