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Mine personnel positioning method based on digital twinning

A personnel positioning and mine technology, applied in positioning, climate sustainability, instruments, etc., can solve the problems of limited use, difficult positioning, unusable WiFi technology and RFID technology, etc., to achieve accurate positioning and avoid limitations.

Active Publication Date: 2022-05-24
AEROSPACE INFORMATION RES INST CAS
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003]At present, the positioning of mine personnel is mostly realized through WiFi technology and RFID technology. This method can only meet the positioning communication of shallow mines, but cannot be used for deep mines. Accurate positioning is achieved, but the use is limited. At the same time, neither WiFi technology nor RFID technology can be used when a mine disaster occurs, causing positioning difficulties and affecting the rescue process. Therefore, the present invention proposes a mine personnel positioning method based on digital twins to solve the existing technology. problems in

Method used

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  • Mine personnel positioning method based on digital twinning
  • Mine personnel positioning method based on digital twinning
  • Mine personnel positioning method based on digital twinning

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Embodiment 1

[0034] according to Figure 1 、 Figure 2 As shown in the present embodiment, the present embodiment provides a method of positioning the mine personnel based on a digital twin, comprising the following steps:

[0035] Step 1: Based on the principle of electromagnetic induction, the ore composition between the mine personnel and the ground is detected, and the radar image obtained by the remote sensing satellite is combined to establish a three-dimensional model of the ore layer structure under the mine and between the mine personnel and the ground;

[0036] After the remote sensing satellite acquires the radar image, the interference of the coherent signal is reduced by the enhanced Lee filter transformation, and then the mean filter is further used to smooth the radar image, and the Lee filter model is represented by the following equation

[0037]

[0038] where W(t) represents the weight function, C 1 and C v The data z(t) and the standard deviation coefficient of the noise, r...

Embodiment 2

[0049] according to Figure 3 As shown in the present embodiment, the present embodiment provides a method of positioning the mine personnel based on a digital twin, comprising the following steps:

[0050] Step 1: Based on the principle of electromagnetic induction, the ore composition between the mine personnel and the ground is detected, and the radar image obtained by the remote sensing satellite is combined to establish a three-dimensional model of the ore layer structure under the mine and between the mine personnel and the ground;

[0051] After the remote sensing satellite acquires the radar image, the interference of the coherent signal is reduced by the enhanced Lee filter transformation, and then the mean filter is further used to smooth the radar image, and the Lee filter model is represented by the following equation

[0052]

[0053] where W(t) represents the weight function, C 1 and C v The data z(t) and the standard deviation coefficient of the noise, respectively...

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Abstract

The invention discloses a mine personnel positioning method based on digital twinning, and the method comprises the steps: 1, building a three-dimensional model, 2, obtaining coarse positioning data through a linear frequency modulation spread spectrum technology, 3, calculating the positioning data of mine personnel from the ground, 4, estimating and optimizing the position data, and 5, positioning the mine personnel. 5, mapping and displaying the positioning of the mine personnel based on the digital twinning technology; according to the invention, an underground ore layer is positioned and detected through an electromagnetic induction principle to establish a three-dimensional model, then detection is carried out by using a linear frequency modulation spread spectrum technology, and positioning data of mine personnel can be accurately calculated in combination with attenuation of spread spectrum signals. And after the positioning data is optimized, accurate positioning mapping is realized based on the digital twinborn technology in combination with the three-dimensional model, so that the limitation of the traditional positioning method is effectively avoided, the positioning is accurate, and certain help is provided during mine disaster rescue.

Description

Technical field [0001] The present invention relates to the field of mine positioning technology, in particular to a mine personnel positioning method based on a digital twin. Background [0002] In recent years, the utilization of coal resources in China has shown a trend of substantial growth, the amount of coal mining and the scale of mining have become larger and larger, which makes the development of the coal industry into a key industry related to the lifeline of the national economy, and with the deepening of coal mining work, more and more unsafe factors threaten the safety of people's lives and property, so governments at all levels are committed to taking a series of measures to continuously strengthen safe production work; [0003] At present, the positioning of mine personnel is mostly achieved through WiFi technology and RFID technology, this method can only meet the positioning communication of shallow mines, and for deep mines can not achieve accurate positioning, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02G01V3/12
CPCG01S5/0268G01S5/0269G01V3/12Y02A90/30
Inventor 杨邦会王大成
Owner AEROSPACE INFORMATION RES INST CAS
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