Title:
NB-IOT-BASED METHOD AND APPARATUS FOR WIRELESS MONITORING OF ROCK MASS FRACTURE INSTABILITY MICROSEISMIC SIGNALS
Document Type and Number:
WIPO Patent Application WO/2023/123844
Kind Code:
A1
Abstract:
An NB-IOT-based method and apparatus for wireless monitoring of rock mass fracture instability microseismic signals, relating to the technical field of geological hazard prevention and control. The monitoring method comprises: collecting microseismic signals generated by rock mass fracture, and using a short-term average/long-term average method to pick up effective microseismic waveform data (101); extracting microseismic feature vectors from the effective microseismic waveform data, and executing different compression strategies according to the microseismic feature vectors to obtain a compressed data packet (102); scheduling an NB-IOT module by using a sleep-wake algorithm, waking up the NB-IOT module when data needs to be sent, and putting the NB-IOT module into a sleep state when data does not need to be sent (103); when the NB-IOT module is in a wake state, sending the data packet to a cloud platform (104); and the cloud platform analyzing the received data packet, and if an early warning condition is met, sending early warning information (105). The NB-IOT technology is combined to solve the long-distance transmission problem of wirelessly monitored data of rock mass fracture instability microseismic signals, while the working time of the NB-IOT module is prolonged, thereby providing important practical value for geological hazard prevention and reduction.
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Inventors:
XU HUAJIE (CN)
SU GUOSHAO (CN)
CHEN YU (CN)
LAN LAN (CN)
LAN RIYAN (CN)
LI JIANHE (CN)
LIU ZONGHUI (CN)
QIN ZIXIU (CN)
YAN YUANFANG (CN)
SU GUOSHAO (CN)
CHEN YU (CN)
LAN LAN (CN)
LAN RIYAN (CN)
LI JIANHE (CN)
LIU ZONGHUI (CN)
QIN ZIXIU (CN)
YAN YUANFANG (CN)
Application Number:
PCT/CN2022/095165
Publication Date:
July 06, 2023
Filing Date:
May 26, 2022
Export Citation:
Assignee:
UNIV GUANGXI (CN)
International Classes:
G01V1/28
Foreign References:
| CN114325823A | 2022-04-12 | |||
| CN112731518A | 2021-04-30 | |||
| CN112130175A | 2020-12-25 | |||
| CN105487114A | 2016-04-13 | |||
| CN113050159A | 2021-06-29 | |||
| CN208125931U | 2018-11-20 | |||
| CN111083677A | 2020-04-28 | |||
| US20190383958A1 | 2019-12-19 |
Other References:
JIAN-HUA DUAN, WANG BAO-LI, ZHU HONG-JUAN, REN YA-PING: "The technique of micro seismic monitoring data compression", GEOPHYSICAL AND GEOCHEMICAL EXPLORATION, vol. 38, no. 5, 15 October 2014 (2014-10-15), pages 1018 - 1023, XP093075671
Attorney, Agent or Firm:
BEIJING BOSHIZHIXIN PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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