Tobacco leaf double-sided photographing device

Abstract

The invention discloses a tobacco leaf double-sided photographing device. The device comprises a first conveying belt, a first image sensor, a second conveying belt and a second image sensor; the first image sensor is arranged above the first conveying belt; a negative pressure area is arranged at one end of the first conveying belt; after tobacco leaves pass through the negative pressure area, the tobacco leaves are overturned to the lower surface of the first conveying belt in the first conveying direction of the first conveying belt; a positive pressure area is arranged on the first conveying belt and behind the negative pressure area in the first conveying direction and located on the lower surface of the first conveying belt; a second conveying belt is arranged below the first conveying belt; and the second conveying belt is provided with the second image sensor. The tobacco leaf double-sided photographing device has the beneficial effects that automatic overturning of the tobacco leaves is achieved by arranging the conveying belt with a negative pressure device, a good image collecting effect is achieved, and the problem that in the prior art, images are not clear due to the fact that a transparent conveying belt is used for photographing is solved; and the tobacco leaves are overturned through the conveying belt, the overturning efficiency is high, the plurality of tobacco leaves can be overturned in sequence, and the overturning speed is higher compared with the scheme of overturning through a mechanical arm in the prior art.

Description

technical field [0001] The invention relates to the technical field of tobacco leaf image collection, in particular to a tobacco leaf double-sided photographing device. Background technique [0002] As an important economic crop, tobacco leaf has higher economic added value than grain. The quality of tobacco leaves determines its economic value, and the economic value of high-quality tobacco leaves and low-quality tobacco leaves usually has a large difference. Therefore, when the tobacco leaves are harvested, it is often necessary to grade the tobacco leaves. [0003] In the prior art, it is a common grading method to collect images of tobacco leaves through a camera and rely on manual or computer programs to judge the quality of tobacco leaves based on the images of tobacco leaves. It has the advantages of fast judgment speed and high accuracy. Judging tobacco leaves based on tobacco leaf images The quality of tobacco usually needs to obtain the front image and the revers...

AI Technical Summary

Problems solved by technology

There are certain defects in the above two methods. For example, the transparent conveyor belt is prone to scratches during use, forming scratches on the conveyor belt, and the light transmission effect at the scratches is poor, which makes the camera installed under the transparent conveyor belt The effect is poor, which affects the accuracy of image recognition; the method of grabbing and turning the tobacco leaves by setting the robotic arm is inefficient, requires a long turning time, and cannot simultaneously turn multiple tobacco leaves at the same time

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