Mine wire rope dynamic flaw detection method and device based on machine vision

Abstract

The invention belongs to the technical field of image processing, and discloses a mine wire rope dynamic flaw detection method and device based on machine vision. The method comprises the following steps: recording video signals by continuously photographing a dynamic motion wire rope through a camera; processing the video signals, extracting a moving target to obtain a vibration track of each pixel point on the characteristic edge of the wire rope; and obtaining a flexibility matrix of the wire rope to be tested; and step S4, using a BP neural network after sample training to obtain damage positions and damage degrees of the wire rope to be tested; extracting damage location units, as ROI regions, determined by the BP neural network from a whole image, and storing the image as a new wirerope damage initial image; processing the wire rope damage initial image, extracting features of the wire rope damage initial image, and performing surface defect identification based on texture features by a linear classifier. The mine wire rope dynamic flaw detection method solves the problem of image detection errors, and has simple operation and low cost.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a machine vision-based dynamic flaw detection method and device for mine steel wire ropes. Background technique [0002] With the diversification of coal mining methods, various types of winches also play an important role in the transportation of inclined lanes in coal mines. Personnel and equipment need to use the winch lifting system to enter and exit the mine. The wire rope needs to bear a heavy burden during work, and the underground environment is special. During long-term use, the wire rope is prone to safety hazards such as wire rope wear, cracks, corrosion, and broken wires. If it is not replaced in time Wire ropes are prone to wire rope breakage, and major accidents will inevitably occur. If the wire rope can be replaced in time before the wire rope breakage accident occurs, serious accidents can be effectively avoided. [0003] Steel wire ropes a...

AI Technical Summary

Problems solved by technology

This method has complex equipment and high cost, and the signal is easily distorted by external interference, and uneven magnetization will also bring great errors to the detection results.

Images