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Title:
TUNNEL DAMAGE DETECTION MANAGEMENT SYSTEM BASED ON VIBRATION SIGNAL OF MOVING TRAIN
Document Type and Number:
WIPO Patent Application WO/2021/143484
Kind Code:
A1
Abstract:
A detection management system for damages (13-15) of a tunnel (11) based on a vibration signal of a moving train (1). Defects or damages (13-15) of the structure and the soil layer behind segment of the subway tunnel (11) are identified by means of acquisition, transmission, and analysis on an on-board acceleration signal. A train (1) in service or an inspection train operates in the subway tunnel (11). A signal acquisition sensor (4) is mounted on the moving train (1) for acquiring a vibration signal, etc. transferred by a coupling system for the train (1) tunnel (11) soil (12) to the train (1). A signal acquisition module and a signal transmission system (5) are mounted in the train for pre-processing and compressing the signal, and transmit the signal to an analysis center by means of a network. A data processing analysis server uses professional data processing software and AI to perform data analysis, rapidly identifies the damages (13-15) of the tunnel (11) and the ancillary structure thereof, and determines the position and type of the damages. A tunnel (11) management platform publishes real-time detection information and health status of the tunnel (11), alarms the damages (13-15), and pushes to the relevant staff for taking measures. The detection is highly efficient, economical, and high in accuracy.

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Inventors:
XIE XIONGYAO (CN)
ZHANG YONGLAI (CN)
LI HONGQIAO (CN)
ZHOU BIAO (CN)
Application Number:
PCT/CN2020/139283
Publication Date:
July 22, 2021
Filing Date:
December 25, 2020
Export Citation:
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Assignee:
UNIV TONGJI (CN)
International Classes:
G01N29/04
Domestic Patent References:
WO2017102990A12017-06-22
Foreign References:
CN111257415A2020-06-09
CN110414073A2019-11-05
CN103077609A2013-05-01
CN104246467A2014-12-24
CN104634870A2015-05-20
CN104807607A2015-07-29
CN106802181A2017-06-06
JP2017040605A2017-02-23
Other References:
See also references of EP 3889596A4
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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