Method for monitoring and calculating settlement of coal mining surface based on unmanned aerial vehicle remote sensing

A surface subsidence and unmanned aerial vehicle technology, applied in photogrammetry/video surveying, measuring device, surveying and navigation, etc., to achieve the effect of low input cost, short monitoring period and high monitoring accuracy

Active Publication Date: 2017-07-21
XIAN UNIV OF SCI & TECH
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Parameter values ​​such as coal mining surface subsidence are important indicators for evaluating mining damage, but how to use UAV r

Method used

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  • Method for monitoring and calculating settlement of coal mining surface based on unmanned aerial vehicle remote sensing
  • Method for monitoring and calculating settlement of coal mining surface based on unmanned aerial vehicle remote sensing
  • Method for monitoring and calculating settlement of coal mining surface based on unmanned aerial vehicle remote sensing

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[0050] Such as figure 1 Shown is a method for monitoring and calculating coal mining surface subsidence based on UAV remote sensing. Taking the application of 805 fully mechanized mining face of a mine in Ningdong Coal Base as an example, small UAVs are used to detect surface subsidence in coal mining subsidence areas. The amount is calculated, and the process is as follows.

[0051] Step 1. UAV route design: Plan the UAV flight route according to the topography, range, location and ground resolution of the research area.

[0052] The embodiment of the present invention uses the MD4-1000 quadrotor special small drone for aerial photography, and the sensor uses the SONY A7R camera produced by Sony Corporation of Japan. The flight route of the small drone mainly includes altitude, overlap rate and heading design, as follows:

[0053] Step 101. Flight altitude determination: Determine the size of the ground resolution GSD according to the width of the collapsed cracks on the coal minin...

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Abstract

The invention relates to a method for monitoring and calculating settlement of coal mining surface based on unmanned aerial vehicle remote sensing, comprising the steps of I, planning an unmanned aerial vehicle flight line according to landform, range, position and ground resolution of a research area; II, remotely controlling an unmanned aerial vehicle to fly according to a set flight line, and collecting a remote sensing image; III, laying out a plurality of quantity control points according to the range and geological characteristics of the research area, and measuring these points one by one; IV, using professional remote-sensing image processing software to generate a point cloud, and exporting surface three-dimensional coordinates of the research area; V, according to the ground control measurement results, using a four-parameter surface fitting correction model to the three-dimensional coordinates measured by the unmanned aerial vehicle; VI, comparing the corrected surface elevation with pre-mining tomographic map elevation, and calculating post-mining surface settlement. The method has the advantages that the steps are simple, the design is reasonable; implementation is convenient, calculating precision is high, and the surface settlement due to coal mining can be calculated effectively.

Description

technical field [0001] The invention belongs to the technical field of coal mining surface subsidence monitoring in mining engineering, and in particular relates to a monitoring and calculation method for coal mining surface subsidence in plain areas with sparse vegetation. Background technique [0002] Coal mining surface subsidence is a surface subsidence phenomenon caused by coal mining. It has the characteristics of large affected area and long duration. Associated landslides and collapses and other geological disasters can cause varying degrees of damage to surface transportation, construction, communication and water conservancy facilities, and seriously threaten the ecological environment of mining areas and the safety of people's lives and property. The monitoring of coal mining ground subsidence in mining areas can provide a basis for the protection, damage assessment and management of land resources and buildings in mining areas, and is also of great significance t...

Claims

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Application Information

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IPC IPC(8): G01C11/00G01C11/06G01C5/00
CPCG01C5/00G01C11/00G01C11/06
Inventor 侯恩科首召贵高冠杰谢晓深
Owner XIAN UNIV OF SCI & TECH
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