Method for judging material taking boundary of bucket wheel type material taking machine

Abstract

The invention provides a method for judging a material taking boundary of a bucket wheel type material taking machine. The method comprises the following steps: after receiving a first signal, cuttingpictures acquired frame by frame by an image acquisition device to obtain a region of interest; performing binarization conversion on the region-of-interest image through a mask method to complete enhancement of image features; optimizing the enhanced image through a median filtering template; contour recognition is carried out on the optimized image; judging whether the number of the contours isgreater than a set threshold, and if so, feeding back that the contours are still in a first signal state; if not, changing to a second signal state and feeding back, and meanwhile, stopping the picture cutting operation; wherein the first signal is a bucket wheel coal signal, and the second signal is a bucket wheel boundary arrival signal. According to the method, the running state of the bucketwheel of the material taking machine is directly judged by utilizing a digital image processing technology, and the idle rotation direction of the bucket wheel is judged at the first time to send outa next-step rotation instruction, so that the rotation boundary of the bucket wheel is accurately judged.

Description

technical field [0001] The invention relates to the technical field of bucket wheel reclaimers, in particular to a method for judging the reclaiming boundary of a bucket wheel reclaimer. Background technique [0002] The bucket wheel reclaimer is an important equipment in the thermal power field for taking coal piles onto the belt conveyor. Traditional reclaimers are mostly manual reclaimers. The driver's eyes observe the state of the coal pile and control the bucket wheel reclaimer to move forward. The traditional method is greatly affected by the weather and personal factors of the driver, and the work efficiency is not high. Based on this, the existing technology has developed an automatic control reclaimer, including the use of radar mathematical simulation modeling and laser scanning modeling methods for automatic stacking and reclaiming centralized control, and the number of operators has been reduced, and the remaining personnel have been transferred to the centraliz...

AI Technical Summary

Problems solved by technology

[0003] In the unattended control system of the reclaimer, the most important link is to make accurate judgments on the end position of the bucket wheel on the working face. The accurate judgment of the reclaiming boundary is conducive to improving the working efficiency of the bucket wheel, reducing the idling time of the bucket wheel, Save equipment power consumption; the above-mentioned automatic control technology has a method of using short-wave ranging radar or laser scanning head to judge the running boundary of the bucket wheel, but the technology implementation cost is large and the judgment accuracy is low, resulting in too long idling time of the bucket wheel and automatic operation Inefficient

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