Automatic updating method for three-dimensional model of unmanned mining work face

A mining face and 3D model technology, which is applied in the field of automatic updating of 3D models of unmanned mining faces, can solve the problems of not considering local incremental update and boundary stitching, and not considering the problem of shearer cutting point calculation, etc.

Active Publication Date: 2016-05-04
SHANDONG UNIV OF SCI & TECH +1
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Problems solved by technology

[0006] 3. This method automatically adjusts the coordinates of the grid points when the coal wall model is updated in real time, without considering the calculation of the cutting points of the shearer
[0007] 4. This method does not consider the local incremental update and boundary stitching issues

Method used

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  • Automatic updating method for three-dimensional model of unmanned mining work face

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Embodiment Construction

[0070] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0071] 1. The mining face model

[0072] For the 3D model of the coal seam in front of the mining face, firstly, a parametric control grid subdivision model is established for the shearer according to the project implementation process, and the parametric control subdivision grid is smaller than the cut depth of the shearer.

[0073] According to the geological exploration data of the working face panel in the design stage, the height of the roof and floor of both sides along the groove, etc., the 3D model of the mining face is generated in the background, and the model of the mining face is rendered to generate the mining face in the initial scene Model. Mainly divided into the following two steps:

[0074] (1) Modeling of mining face: Since the position of the drum of the shearer changes in real time during mining, the coal wall model of the...

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Abstract

The invention discloses an automatic updating method for a three-dimensional model of an unmanned mining work face, and belongs to the field of updating of three-dimensional models of unmanned mining work faces of mines. According to the method, for a coal seam model in front of a work face, a parameterized control mesh subdivision model for a coal mining machine is established in a proper time, so that dynamic changes of coal mining scenes (such as long wall mining, short wall mining, top coal caving, room mining, room and pillar mining and the like) of various stope faces can be adapted; and the coal mining machine obtains change information of the work face and working parameters of the coal mining machine in a coal cutting process and finishes dynamic timely updating of the work face by utilizing an automatic texture mapping technology, local increment updating and boundary seaming through positioning a cutting point, moving the cutting point and calculating texture coordinates of the cutting point.

Description

technical field [0001] The invention belongs to the field of updating models of unmanned mining working faces in mines, and in particular relates to an automatic updating method for a three-dimensional model of unmanned mining working faces. Background technique [0002] The automatic update of the 3D model of the unmanned mining face is an important part of timely and accurate modeling, and the effect of its automatic dynamic update directly affects the control of the unmanned mining cutting path. There are few relevant research reports at home and abroad on the automatic update method and technology of the 3D model of the mining face related to the cutting of the coal mining machine. techniques and methods. Among them, the most similar implementation methods to this method are "dynamic updating of the coal wall model based on the position of the shearer drum" and "real-time updating of the 3D model of the goaf": when establishing the coal seam model in front of the workin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/00
CPCG06T15/00
Inventor 卢新明彭延军尹红李旭建
Owner SHANDONG UNIV OF SCI & TECH
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