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A method for co-locating shock sources with low-density fixed stations and high-density mobile phones

A technology of rock burst and mobile phone, applied in seismology, seismic signal processing, geophysical measurement, etc., can solve problems such as the method for locating the source of dynamic disasters in coal mines that have not been found, meet the positioning requirements, improve the positioning accuracy, cost reduction effect

Active Publication Date: 2022-07-19
LIAONING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, no method has been found to use fixed stations and smart phones to locate the source of coal mine dynamic disasters

Method used

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  • A method for co-locating shock sources with low-density fixed stations and high-density mobile phones
  • A method for co-locating shock sources with low-density fixed stations and high-density mobile phones
  • A method for co-locating shock sources with low-density fixed stations and high-density mobile phones

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Experimental program
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Embodiment Construction

[0018] A method for co-locating a shock source for a low-density fixed station and a high-density mobile phone, the steps of which are:

[0019] 1) Build a collaborative monitoring network between mobile phones and stations;

[0020] When rockburst occurs, select the first triggering station, establish a collaborative monitoring network with surrounding triggering mobile phones, record the location and triggering time of the station, and record the mobile phone number, GPS location information, triggering time and other information of the mobile phone.

[0021] 2) Determine the hyperboloid formed by the mobile phone and the station;

[0022] When rockburst occurs, with the triggering mobile phone and the fixed station as the focus respectively, combined with the distance difference between the source and the mobile phone and the station, several hyperboloid functions f are determined. i (x, y, z):

[0023]

[0024] Among them, i is the ith mobile phone user, (x 0 , y 0 ...

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Abstract

A method for co-locating the shock source of a low-density fixed station and a high-density mobile phone, the steps of which are: 1) constructing a collaborative monitoring network between the mobile phone and the station; 2) determining the hyperboloid formed by the mobile phone and the station; 3 ) Determining the hypocenter along the hyperboloid by simulating points; 4) Constantly updating the global optimal point and its own optimal point; 5) Determining the hypocenter point or the hypocenter range. Through the above method, the invention provides a method for co-locating shock sources with low monitoring cost and high positioning accuracy.

Description

technical field [0001] The invention belongs to the field of rockburst monitoring and positioning in coal mining, and particularly relates to a low-density fixed station and a high-density mobile phone for the coordinated positioning of rockburst sources. Background technique [0002] Rockburst is a dynamic disaster caused by the sudden release of elastic energy of coal and rock mass around the underground working face or roadway of a coal mine, which often causes the collapse of the underground roadway and ground shaking, causing disasters. At present, most of the microseismic monitoring systems in the rockburst area in China are imported from abroad. Most of the geophones used in the system stations are speed or acceleration sensors, which have high positioning accuracy. Monitoring blind spots and precise location of rockburst source have become urgent needs for rockburst monitoring and early warning. Smartphones are popular in modern society. Compared with the geophones ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/30
CPCG01V1/30G01V2210/65
Inventor 罗浩潘一山史金鹏宋宝燕丁琳琳马技
Owner LIAONING UNIVERSITY