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Method and device for detecting contaminants on surface of sample and computer readable medium

A technology for detecting samples and pollutants, applied in the field of spectral detection, can solve the problems of cumbersome operation, batch differences in accuracy and model stability, inability to detect and identify online, etc., to achieve simple operation, avoid a large number of modeling tests, The effect of avoiding discrepancies in results

Pending Publication Date: 2021-11-16
CHINA TOBACCO FUJIAN IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the problems that the above method is cumbersome to operate, the accuracy is affected by the batch difference of the pollutants and the stability of the model, and cannot be detected and identified online, the present invention proposes a method for detecting pollutants on the surface of samples, which can automatically identify Whether the sample (such as cigarettes) is contaminated, and can also determine the source of pollutants

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  • Method and device for detecting contaminants on surface of sample and computer readable medium
  • Method and device for detecting contaminants on surface of sample and computer readable medium
  • Method and device for detecting contaminants on surface of sample and computer readable medium

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Embodiment Construction

[0060] Embodiments of the present invention will be described in detail below in conjunction with examples, but those skilled in the art will understand that the following examples are only used to illustrate the present invention, and should not be considered as limiting the scope of the present invention. Those who do not indicate the specific conditions in the examples are carried out according to the conventional conditions or the conditions suggested by the manufacturer. The reagents or instruments used were not indicated by the manufacturer, and they were all commercially available conventional products.

[0061] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0062] The samples to be tested are cigarette sticks, cigarette filter rods, and cigarette packaging materials, such as cigarette paper, molding paper, tipping paper, etc.

[0063] (1) Using a hyperspectral imag...

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Abstract

The invention provides a method and device for detecting contaminants on the surface of a sample and a computer readable medium. The method for detecting the pollutants on the surface of the sample comprises the following steps: acquiring a sample spectrum; carrying out principal component analysis on the sample spectrum, and taking waveband data corresponding to the first three principal components to generate a false color image; identifying a polluted area and an unpolluted area from the false color image; respectively acquiring spectrums of the polluted area and the non-polluted area; comparing the spectral difference between the polluted area and the non-polluted area, and positioning one or more characteristic wavelengths according to the difference; and determining one or more properties of the contaminant from the characteristic wavelengths.

Description

technical field [0001] The invention relates to the field of spectrum detection, in particular to a method, device and computer-readable medium for detecting pollutants on the surface of samples. Background technique [0002] During the production and processing of cigarettes, due to uneven dry moisture in cut tobacco, uneven flavoring and flavoring, and oil leakage from processing equipment, the surface of cigarettes after rolling is easily polluted and stained cigarettes appear, affecting product image and consumer health. Therefore, in the actual production process, polluted cigarettes should be detected and eliminated in time, and at the same time, the cause should be found and hidden dangers should be eliminated. At present, the main discovery of stained cigarettes is mainly based on inspections by operators or consumer feedback, which has poor timeliness and a low discovery rate. The cause of stains is mainly determined by manual experience, and they are checked one by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/94G01N21/952G01N21/35
CPCG01N21/94G01N21/952G01N21/55G01N21/35G01N2021/1785
Inventor 徐大勇李华杰王道铨堵劲松骆永昌孟庆华林志平李辉苏子淇王锐亮李嘉康
Owner CHINA TOBACCO FUJIAN IND
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