The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 02, 2026

Filed:

Feb. 03, 2023
Applicant:

Tsinghua University, Beijing, CN;

Inventors:

Danqing Song, Beijing, CN;

Xiaoli Liu, Beijing, CN;

Wenfa Yan, Beijing, CN;

Guanfu Chen, Beijing, CN;

Yufang Zhang, Beijing, CN;

Jian Li, Beijing, CN;

Assignee:

Tsinghua University, Beijing, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01H 9/00 (2006.01); G01B 11/16 (2006.01); G01L 1/24 (2006.01);
U.S. Cl.
CPC ...
G01H 9/006 (2013.01); G01B 11/16 (2013.01); G01L 1/242 (2013.01);
Abstract

This application discloses a slope detection apparatus and method based on distributed optical fiber sensing. The apparatus includes: optical fiber measuring units arranged inside a slope and configured to measure acceleration time sequences of a plurality of state parameters of the slope; a demodulator, where the demodulator is connected to the optical fiber measuring units and configured to receive the acceleration time sequences of the slope; and a terminal device, where the terminal device is connected to the demodulator and configured to perform multi-domain coupling analysis on the acceleration time sequences so as to generate a feature cloud map of the slope, perform sub-item detection on slope stability state based on the feature cloud map and preset multi-domain feature parameter indexes so as to obtain a sub-item detection result of the state of the slope.


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