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Stem content in leaf infrared imaging detection method based on active heating

A detection method and infrared imaging technology, which is applied in the direction of measuring devices, test sample preparation, instruments, etc., can solve the problems of long detection cycle, hysteresis, and inability to meet the real-time control of production dynamics well, and achieve processing speed Fast, high efficiency, overcome the effect of long detection cycle

Active Publication Date: 2013-05-01
NANJING UNIV OF SCI & TECH +1
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Problems solved by technology

These devices are of positive significance for improving the threshing performance and leaf stem separation of the threshing and re-roasting production line, but they are not suitable as an online real-time detection method, because the detection cycle of this equipment method is long (several hours) It has hysteresis and cannot well meet the requirements of dynamic real-time control of production

Method used

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  • Stem content in leaf infrared imaging detection method based on active heating
  • Stem content in leaf infrared imaging detection method based on active heating
  • Stem content in leaf infrared imaging detection method based on active heating

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Embodiment Construction

[0028] The invention is based on an active heating infrared imaging detection method for stalks in leaves, combined with an application example of a threshing and redrying production line. Such as figure 1 ,Proceed as follows:

[0029] In the first step, the tobacco leaves are evenly diluted through the vibrating plate and acceleration belt, and the diluted tobacco leaves enter the oven along the conveying production line;

[0030] The second step, such as figure 2 , Tobacco automatic heating process. Set the conveying speed of the production line and the temperature of the oven so that the tobacco leaves are heated to 50-100 degrees after passing through the process. In this embodiment, the temperature of the oven is set to 120-200 degrees, and the production line speed is 1-3 meters per second.

[0031] The third step is the automatic and rapid cooling process of tobacco leaves. After the automatic heating is completed, the tobacco leaves are cooled, and the cooling process is ...

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Abstract

The invention discloses a stem content in leaf infrared imaging detection method based on active heating, which is characterized in that tobacco leaves are uniformly spread and thinned through a vibration disc and an acceleration belt, the uniformly spread and thinned tobacco leaves are heated by using a heating device and sent to a refrigeration apparatus for cooling, tobacco leaves are scanned to the images of leaf blades and leaf stems by an infrared heat imaging instrument, the infrared heat radiation of the target tobacco leaves can be detected through the infrared heat imaging instrument to obtain the distribution images of leaf blades and leaf stems of the target tobacco leaves can be obtained; the images segmentation of the distribution images of leaf blades and leaf stems of the target tobacco leaves can be carried out, and the segmented leaf stems images can be analyzied, the leaf stem information which accords with practical production requirement can be obtained, and the stem content rate in leaves can be calculated. According to the invention, the clear stem images of the tobacco leaves can be obtained, and the shape and size of the leaf blades and leaf stems can be accurately and rapidly identified.

Description

Technical field [0001] The invention belongs to the identification and detection technology of stems (rate) in tobacco leaves in the tobacco industry, in particular to an infrared imaging detection method for stems in leaves based on active heating. Background technique [0002] With the development of society, people's requirements for product quality continue to increase. For cigarette products, improving the purity of tobacco leaves is an important guarantee for improving the quality of cigarettes. Some tobacco manufacturers use a lot of manpower to improve the purity of tobacco leaves by hand selection on the production line. However, although this manual selection method improves the purity of tobacco leaves, it reduces the efficiency of production, and also consumes a lot of manpower and management costs, which is not conducive to the development of large-scale social production. In order to improve the purity of tobacco leaves while improving production efficiency, contin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84G01N1/44
Inventor 刘永王欢时定兵刘承钧
Owner NANJING UNIV OF SCI & TECH
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