Method for detecting chain breakage of double-chain scraper through structured light positioning and ranging

Abstract

The invention relates to a method for detecting chain breakage of a double-chain scraper through structured light positioning and ranging, and belongs to the field of chain breakage detection of scrapers. Marking devices are respectively arranged on scraping plates of the scraper, a projector for outputting images and a high-speed camera for acquiring the images output by the projector are arranged above the scraping plates of the scraper; an integrated board card for controlling operation of the scraper is further arranged on the scraper; a signal input end of the integrated board card communicates with the high-speed camera; and the projector projects an image to the scraping plates on the scraper, and the image covers the two adjacent scraping plates. According to the method for detecting chain breakage of the double-chain scraper through structured light positioning and ranging, the detection efficiency is high, the detection result is accurate and is not influenced by the positions of the scraping plates. By adopting the Gray code to carry out coding ranging, the problem of inaccurate measurement result caused by data mutation brought by binary code carry can be effectively avoided under the condition of keeping the simple and convenient advantages of binary code.

Description

technical field [0001] The invention relates to a method for detecting chain breakage of a double-chain scraper machine through structured light positioning and ranging, and relates to the field of chain breakage detection of the scraper machine. Background technique [0002] The scraper conveyor is an important equipment used for coal transportation in coal mining, and its performance, life and reliability affect the development of the coal mining industry. In the actual mine work, due to the long-term wear and tear of the harsh environment, the performance, life and reliability of the scraper machine are gradually reduced, and phenomena such as bending, jamming, and erosion of key parts will occur. There may be a broken chain phenomenon, which poses a great threat to the coal mining work and the life safety of workers. Therefore, in order to avoid the damage caused by the broken chain phenomenon, it is of great practical significance to study a reasonable and timely det...

AI Technical Summary

Problems solved by technology

[0003] At present, for the broken chain detection of the scraper machine, most of them use the interval time between two adjacent scrapers to pass the same position to judge whether the chain has been broken. Although this method is simple, it cannot Carry out timely braking at the first time, and because the length of the interval time is different and the running speed of the scraper machine is unstable, it is easy to cause misjudgment or missed judgment, so that the detection effect of the broken chain of the scraper machine is not good.

Moreover, the current method for detecting broken chains of scraper machines is complex and requires a lot of equipment to complete the detection of broken chains, which causes problems such as troublesome use.

Images