Automatic counting method for underground drill rods based on machine vision

Abstract

A machine vision-based underground drill rod automatic counting method is characterized by comprising the following steps of (1) reading an underground drilling scene video, carrying out frame splitting, preprocessing a split image and solving the problem of small image contrast ratio, (2) carrying out dichotomy target detection tracking on the preprocessed video image by using a trained target detection model, and (3) carrying out automatic counting on the preprocessed video image. (3) according to the tracked horizontal position change condition of the drill rod and the drill machine, drawing a periodic motion oscillogram of the drill rod and the drill machine in the same diagram, counting once if double waveforms of the drill rod and the drill machine simultaneously have falling edges once, counting once if double waveforms of the drill rod and the drill machine have falling edges once, and counting once if double waveforms of the drill rod and the drill machine enter the same diagram; and if the double waveforms of the drill rod and the drilling machine simultaneously have rising edges once, counting once. And the counting accuracy is improved.

Description

technical field [0001] The present application relates to a method for automatically counting downhole drill pipes based on machine vision. [0002] In the process of mining coal seams underground, in order to prevent the gas from leaking and spreading in the coal seam, it is usually necessary to drill in the coal seam in advance for gas drainage inspection in order to ensure the safety of the underground environment. Downhole operation specifications have clear requirements on the depth of drill pipe driving. Since the length of a drill pipe is usually standardized and fixed, especially much less than the required drilling depth, in practice, multiple drill pipes must be driven in to ensure a sufficient depth. In this way, there is a gas extraction The problem of counting the number of drill pipes drilled in mining, so as to judge whether the strength of gas drainage is qualified. [0003] At present, the traditional drill pipe counting method adopted in the underground is ...

AI Technical Summary

Problems solved by technology

[0013] Many methods in the above-mentioned links are relatively common, but for the target tracking part, the above-mentioned methods only use the drill pipe or the human body as a target for research and judgment, and the counting accuracy needs to be improved

Images