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Method for measuring coal mine underground drilling depth based on image processing technology

A technology of image processing and drilling depth, which is applied in the field of image processing, can solve the problems of potential safety hazards and failure of supervision, and achieve the effects of avoiding measurement errors, high real-time performance, and good safety

Inactive Publication Date: 2014-10-15
XIAN UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

At present, the measurement of drilling depth is still in the method of measuring while drilling, and the subsequent supervision cannot be carried out.
However, the manual method is still used for the measurement after drilling, which has potential safety hazards.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be described in detail below.

[0018] 1. Video preprocessing

[0019] 1.1 Video processing

[0020] Select and open the same series of drilling videos to be processed, and read the internal parameters of the videos.

[0021] 1.2 Automatic acquisition of parameters

[0022] According to the frame rate of the video, the frame number of the drilling process is automatically calculated FramIn=drilling time (s)*video frame rate (frame / s), and the frame number of the exit process FrameOut=the time required for the drill back ( s)*Video frame rate (frame / s)

[0023] 2. Target tracking

[0024] 2.1 Selection of tracking target and motion direction

[0025] The manual mouse selects the drill bit rectangular box as the target template, and selects the drill pipe direction as the main movement direction to avoid interference and occlusion caused by multi-moving targets such as worker movement in complex downhole environments. Record the parameters...

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Abstract

The invention discloses an image processing video tracking technology. The technology specifically comprises tracking the movement of drills in a punching video, measuring and analyzing tracking paths to automatically calculate the number of drilling rods, and calculating the depth of drilling holes according to the number of the drilling rods. The measuring error caused by human factors can be avoided, the data can be processed in real time or after the event; the measuring security is excellent, and major hidden danger can be solved. A method for measuring the coal mine underground drilling depth based on an image processing technology is provided, and the technology for automatically tracking and identifying objects in the video with low-quality in the underground complex environment is provided; according to the method, the problems that the underground movement objects are complex, and underground workers block the drilling hole video can be solved; the complex light environment generated by underground mine lamps and head lamps of the workers can be processed; the tracking result automatic quantitative analysis and counting judging result precision is high, and the real-time performance of a system is high.

Description

technical field [0001] The invention relates to image processing technology, in particular to a coal mine underground drilling depth measurement method based on the image processing technology. Background technique [0002] Gas has always been a major hidden danger in coal mine production safety. For gas mines, the biggest safety hazard in the production process of coal mines is gas accidents. From 1990 to 2000 in my country, the proportion of major gas accidents with more than 3 deaths at one time increased year by year, reaching a maximum of 45.61%, and it has remained above 40% since 1996. Therefore, gas accidents are the main contradiction of high coal mine safety accidents in my country, and effective control of gas accidents is the key to solving the safety problems of coal mines in my country. Due to the great harm caused by gas accidents, it will take a lot of time and cost to eliminate the hidden dangers of gas accidents. For mines with high gas outbursts, it is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/04E21B47/002G06T7/00G06T7/20
Inventor 董立红李占利张杰慧
Owner XIAN UNIV OF SCI & TECH
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