Automatic adjusting device and method for height of cutter as well as ratooning rice combine harvester

Abstract

The invention provides an automatic adjusting device and method for the height of a cutter as well as a ratooning rice combine harvester. An image of ratooning rice plants on the upper side of the advancing direction of the combine harvester is obtained through an image acquisition mechanism, the image is transmitted to an image processing system to be processed, the position information of the ear layer of the ratooning rice is obtained in real time, the working height of the cutter is calculated and adjusted in real time to ensure that the harvester only cuts off ratooning rice ear heads, the content of stalks and leaves in materials entering the harvester is reduced, and then the problem of power loss caused by the fact that a large number of materials enter a harvester conveying and threshing cleaning device under wide harvesting is solved.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery intelligence, and relates to a device and method for automatically adjusting the height of a cutter and a ratooned rice combine harvester. Background technique [0002] Raising rice is a kind of double-harvest rice, that is, after the first season of rice matures, only the upper 2 / 3 of the rice plant is cut off, and the lower 1 / 3 of the plant and root system are kept, allowing it to grow another season of rice. The second season of ratooning rice has good quality, high price, short cultivation period and low cost, so the economic benefit is excellent. The combine harvester cannot avoid crushing the rice piles during field operations, and the survival rate of the stubble of the ratooned rice that has been crushed by the track is greatly reduced, which directly affects the output of the second season of rice. By increasing the cutting width of the combine harvester, the number of tim...

AI Technical Summary

Problems solved by technology

The combine harvester cannot avoid crushing the rice piles during the field operation, and the survival rate of the stubble of the ratooned rice that has been crushed by the track is greatly reduced, which directly affects the rice output of the second season

By increasing the cutting width of the combine harvester, the number of times the harvester walks in the field can be reduced, thereby reducing the loss caused by rolling, but the widening of the cutting width will increase the feeding amount of the machine, and a large number of stalks and leaves will be transported into the combine harvester and threshing cleaning device will cause unnecessary power loss

[0003] At present, the research on the special harvester for ratooned rice at home and abroad is extremely limited, and there is no research result for harvesting the ear head of ratooned rice; most of the automatic height adjustment devices for headers disclosed in the prior art are based on the ground profiling mechanism, which cannot meet the requirements of regeneration. Requirements for high-level cutting of rice; the crop height detection devices based on visual methods disclosed in the prior art are mostly used in sprinkler irrigation machines, and cannot accurately locate the ear layer; the crop ear layer position recognition devices disclosed in the prior art are mostly based on laser radar Technology, high equipment cost, slow processing speed, it is difficult to match the working speed of the combine harvester

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