Method for determining parameter influence factors of cut tobacco drying process based on partial least square (PLS)

A technique of affecting factors and drying silk, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., and can solve the problem of being unable to determine the size of the influencing factors of silk drying process parameters, etc.

Active Publication Date: 2013-06-12
CHINA TOBACCO HUNAN INDAL CORP
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Problems solved by technology

[0003] The present invention provides a method for determining the influencing factors of silk drying process parameters based on PLS, the purpose of which is to overcome the inability to determine the size of the influencing factors of silk drying process parameters in the prior art

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  • Method for determining parameter influence factors of cut tobacco drying process based on partial least square (PLS)
  • Method for determining parameter influence factors of cut tobacco drying process based on partial least square (PLS)
  • Method for determining parameter influence factors of cut tobacco drying process based on partial least square (PLS)

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with accompanying drawing.

[0042] Taking the production of a certain type of cigarettes in a tobacco factory as an example, a method for determining the influencing factors of drying process parameters based on PLS, the schematic flow chart is as follows figure 1 shown.

[0043] 1) Determination of target variable y and independent variable x and collection of historical data

[0044]There are many process parameters involved in the silk drying process, including process data of HT section (HT steam pressure, HT steam flow rate, inlet moisture, etc.); drum inlet process data (drum inlet hot air temperature, drum inlet hot air volume, etc.); Cylinder wall parameter data (tube wall temperature, cylinder wall steam pressure, etc.); tidal wind parameter data (tidal exhaust damper opening, discharge hood negative pressure, etc.) and shredded tobacco discharge parameter data (discharge shredded tobacco mo...

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Abstract

The invention discloses a method for determining parameter influence factors of a cut tobacco drying process based on a partial least square (PLS). The method comprises the following steps of: selecting target variables and independent variables of process data in the cut tobacco drying process, and acquiring the historical data of the target variables and the independent variables; screening the historical data by adopting a Euclidean distance method, and rejecting abnormal data from the historical data to obtain sample data; and establishing a PLS model of the independent variables x and the target variables y by adopting the PLS, and calculating the magnitudes of influence factors of the independent variables x which influence the target variables y according to the model. The method is simple and easy to implement; and a manual experience-based judgment method is replaced by the method, so that the magnitudes of the influence factors can be obtained quickly and accurately.

Description

technical field [0001] The invention relates to a method for determining the influencing factors of silk drying process parameters based on PLS. Background technique [0002] The shredded tobacco drying process is an essential link in the cigarette processing and shredding process, and the shredded drying process has a great influence on the physical quality and sensory quality of cigarette products. There are more than 10 parameters affecting the silk drying process, and the status parameters can be adjusted on the monitoring computer at this stage. However, when there is an abnormality in production (abnormal detection value of equipment parameters, incoming material level deviates from the setting, etc.), it is impossible to accurately and quickly find the root cause of the abnormal situation according to the influence factor of the parameters in the silk drying process, but can only rely on automatic control The system makes equivalent compensation and process experienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 刘勇刘斌钟科军杨辉谭新良喻光荣席建平毛伟俊李清华张辉吴文强
Owner CHINA TOBACCO HUNAN INDAL CORP
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