Earth sound event positioning method and instability disaster early warning method thereof, earth sound sensor, monitoring system and readable storage medium thereof

A positioning method and geoacoustic technology, applied in the field of geoacoustic intelligent sensing instrument, geoacoustic event positioning method and its instability disaster warning, monitoring system and its readable storage medium, can solve the problems that the accuracy needs to be improved, and achieve Effect of low failure rate and improved accuracy

Active Publication Date: 2021-06-04
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More importantly, the time-of-arrival positioning method only considers the local point information of the complete waveform signal in the process of geoacoustic event position inversion, ignoring many other key factors that characterize the time-frequency characteristics of the waveform, including amplitude, frequency, and shape. As a result, the accuracy of the existing time-based positioning methods needs to be improved.

Method used

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  • Earth sound event positioning method and instability disaster early warning method thereof, earth sound sensor, monitoring system and readable storage medium thereof
  • Earth sound event positioning method and instability disaster early warning method thereof, earth sound sensor, monitoring system and readable storage medium thereof
  • Earth sound event positioning method and instability disaster early warning method thereof, earth sound sensor, monitoring system and readable storage medium thereof

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Embodiment 1

[0071] Scientific and technical personnel have been trying to find effective ways to predict the instability of geoacoustic disasters. A large number of traditional monitoring methods such as displacement, stress, vibration, strain, and microseismic have achieved some results at a certain level. However, the existing monitoring methods are mostly point monitoring, and the microseismic monitoring is area coverage monitoring, it is difficult to capture the tiny precursor characteristic information in the instability and sub-instability stages of geotechnical engineering, and it is urgent to invent a method to capture the small occurrence of rock and soil. High-sensitivity sensing equipment for deformation, small cracks, and small collapses, as well as intelligent sensing devices that can eliminate superimposed noise in the highly sensitive monitoring process, are used to fully understand the change information of the rock mass instability evolution process. To this end, this embo...

Embodiment 2

[0082] This embodiment provides a geoacoustic event location method, which includes the following steps:

[0083] S1: Collect the observed values ​​of the waveform representations of geoacoustic events.

[0084] The selected waveform characterization quantities in this embodiment include: geoacoustic event source P xyz The arrival time, time-domain parameters, spectrum information, and waveform shape of the geoacoustic signal of any monitoring point when the generated wave arrives; Make specific requests.

[0085] For example, in this embodiment, the geoacoustic event source P xyz The observed quantities of generated waves arriving at any monitoring point m are: Observation Time Domain Parameters Observation Spectrum Information Observe the waveform shape

[0086] And the preferred time-domain parameters include characteristic parameters of waveform rise time, duration, amplitude, and energy. The spectral information is a combination of all frequency information of ...

Embodiment 3

[0113] For a long time, the early warning of rock and soil structural instability disasters has been a worldwide problem. It is limited by a single aspect of early warning criteria and narrow coverage of index information scales. Unsteady engineering application scenarios. It can be seen that multi-type fusion monitoring devices based on high-sensitivity sensing technology, relying on multi-physics and multi-scale comprehensive monitoring indicators, seek appropriate and reasonable entry points for early warning indicators, and build an intelligent judgment system for the risk of geoacoustic disasters. engineering value. To this end, the present embodiment provides a method for early warning of instability disasters based on the geoacoustic event location method, including the following steps:

[0114] Step 1: Form a self-clustering cluster according to the localization result of the geoacoustic event, and the self-clustering cluster is obtained by clustering the spatial dist...

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Abstract

The invention discloses an earth sound event positioning method and an instability disaster early warning method thereof, an earth sound sensor, a monitoring system and a readable storage medium thereof, and the earth sound event positioning method considers the arrival time, time domain parameters, frequency spectrum information and waveform shape of an earth sound signal when a wave generated by an earth sound event source reaches any monitoring point, then the non-uniformity of a propagation medium is comprehensively reflected, and the inversion precision of earth sound event positioning is finally improved. According to the instability disaster early warning method, precursor information of disaster instability is comprehensively considered from different dimensions, and an earth sound instability disaster early warning means with applicability, timeliness and low failure rate is constructed according to the change trend of precursor factors; according to the earth sound sensor provided by the invention, integration of signal acquisition and processing is realized; the collected earth sound signals are subjected to micro signal enhancement, filtering fidelity and other processing, the anti-interference capability is effectively improved, and multi-band effective earth sound signals are perceived.

Description

technical field [0001] The invention belongs to the technical field of rock and soil engineering disaster protection, and in particular relates to a geoacoustic event positioning method and an instability disaster early warning method, a geoacoustic intelligent sensor, a monitoring system and a readable storage medium. Background technique [0002] With the development of human society, many large-scale projects are built on rock and soil, such as tailings dams, dams, tunnels, mines, highways, subways, etc. The casualties and equipment loss accidents caused by the above-mentioned project instability were shocking. The San Francis Dam collapse accident in Los Angeles in 1928 caused as many as 600 deaths; 277 people died, and the direct economic loss reached 96.192 million; in July 2020, a large-scale landslide occurred in the Hpakant Emerald Mine in Myanmar. The mine accident caused at least 174 deaths. Scientific and technical personnel have been trying to find effective wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28
CPCG01V1/28G01V1/30
Inventor 董陇军张义涵
Owner CENT SOUTH UNIV
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