Video difference method and bucket wheel machine protection system suitable for dry coal shed

Abstract

The invention provides a video difference method and a bucket wheel machine protection system suitable for a dry coal shed. The method comprises the following steps: carrying out difference by using grayscale images of a three-frame video sequence; segmenting the two frames after the difference to obtain two binarized images, and processing the two obtained binarized images; and extracting the intersection of the foreground images in the two images to obtain an extracted common part. The system comprises a first collection device arranged on a large arm of the bucket wheel machine; the second collecting device is arranged at one end and / or the other end of the bucket wheel machine body; the processing unit is respectively connected with the first collection device and the second collection device; the display device is arranged in an operation room of the bucket wheel machine and is connected with the processing unit; according to the video difference method and the bucket wheel machine protection system suitable for the dry coal shed, the actual working condition of the bucket wheel machine can be obtained more accurately, and dangers are avoided.

Description

Technical field [0001] The present invention relates to the field of intelligent protection in the smart protection of the bucket in the dry coal shed, in particular to a bucket wheel protection system applicable to dry coal shed. Background technique [0002] The bucket is also called a bucket tapper pickup machine, which has a stacker and a refueling function, a large mechanical equipment for highly continuous loading and unloading dispensers. The pile of picking machine is widely used in large bulk ports, fire power plants, storage coal fields, large earthwork engineering sites or ore coal raw materials in large steel mills, large cement plants, etc., to dig up coal, sand Stone or coke and other materials. The pile of charge machine is evolved by the bucket excavator, can form a storage field transport mechanization system with the unloader, belt conveyor, etc., because its efficiency is high, so that the continuous loading and unloading of the modern industrial bulk materials...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, most bucket wheel machine anti-collision methods need to combine the walking data and rotation data of the bucket wheel machine, and these data are obtained through the encoder. For many reasons, once the walking wheel slips, the encoder data will be inaccurate. During the long-term operation, the encoder will accumulate errors, which will make the data deviate and cause the system to make wrong judgments;

[0006] Another way is to install laser radar and other equipment on the boom of the bucket wheel machine to detect whether there are obstacles around, so as to avoid collisions with obstacles. The climate will affect the signal emitted by the lidar, so there is a certain deviation in the measurement results; although differential GPS positioning can be set outside the dry coal shed to improve the accuracy, it is difficult to receive signals in the dry coal shed, resulting in reduced positioning effect. In addition, the overall cost of positioning will increase

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