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Automatic generation method for dyeing formula

A technology of automatic generation and formulation, applied in the information field

Inactive Publication Date: 2009-04-08
HANGZHOU DIANZI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the deficiency of determining the dyeing formula by manual experience, and carry out mathematical modeling on the dyeing formula process through the existing multiple sets of dyeing data.

Method used

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  • Automatic generation method for dyeing formula
  • Automatic generation method for dyeing formula
  • Automatic generation method for dyeing formula

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Such as figure 1 , The specific steps of the dyeing recipe automatic generation method are:

[0035] 1) Obtain the existing definite dyeing formula data, which can be generated through experiments or existing historical production data. If it is an experiment, the data obtained is only valid when the chromaticity value error is within 1%.

[0036] 2) Use the maximum likelihood estimation algorithm to process the data and establish a mathematical model of the dyeing recipe:

[0037] y=a 0 +a 1 u 1 +a 2 u 2 +a 3 u 3

[0038] Once the mathematical model is established, it will not be changed in the following steps.

[0039] 3) Given the desired chromaticity value and the weighting matrix Q, R, use the LQR control algorithm to adjust the amount of dye to generate the optimal chromaticity value. The control structure diagram is shown in 2, by minimizing the quadratic performance index, and constantly adjusting the amount of dye to make the actual chromaticity value close to th...

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Abstract

The invention relates to an automatic generation method of a dyeing recipe. Nowadays, the dyeing recipes of printing and dyeing enterprises are mainly determined according to experience and are inaccurate. The method takes three primary colors of a color reduction system, which are widely adopted in the printing and dyeing industry as a basis to establish a dyeing recipe model, and estimates the model parameters based on the maximum likelihood method. With a view of self errors of a model, the method optimizes the predefined quadratic performance index by controlling the amount of three basic dyes based on the linear quadratic optimal control method; and the method comprises the concrete steps as follows: establishing a dyeing recipe model, generating an accurate dyeing recipe and automatically generating the dyeing recipe. The method can better compensate for the self errors of the model and guarantees the generation of a more accurate dyeing recipe.

Description

Technical field [0001] The invention belongs to the field of information technology, and relates to a method that can be used in the printing and dyeing industry, can model the dyeing formula and automatically generate the dyeing formula. Background technique [0002] With the further development of modern printing and dyeing technology, printing and dyeing enterprises have higher and higher requirements for cloth color. Whether the color of the fabric meets the requirements, the key lies in the pre-treatment and dyeing of the fabric. The main factors that affect the dyeing color of the fabric include: the stability of the dyeing formula, the properties of the fabric, the pressure, temperature and speed of the dyeing machine. The stability of the dyeing formula is a key factor in determining the dyeing color. The unstable formula will lead to poor repeatability of the product. . Nowadays, the dyeing formula of printing and dyeing enterprises is usually determined by the experienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02D06P1/00
Inventor 鲁仁全薛安克杜伟周晓慧王建中
Owner HANGZHOU DIANZI UNIV
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