Cigarette quality evaluation method and system based on principal component analysis

A technology of principal component analysis and quality evaluation, applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve the problems of not truly reflecting the process quality level, no improvement, and affecting the overall process quality of the silk making process.

Inactive Publication Date: 2013-09-25
陈景正
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AI Technical Summary

Problems solved by technology

[0003] (1) This method only performs a simple sorting on the results obtained from the gray relational analysis to determine the quality of the comprehensive process of the evaluation object, and improves the process with the worst evaluation result. The evaluation result is only a few processes The results of relative comparison sometimes cannot truly reflect the real processing quality level of the process. For example, when the process capability index of several processes is greater than or equal to 1.67, the actual process processing quality is at a relatively high level. At this time, for relatively poor There is no meaning to improve the process; at the same time, if the process capability index of several processes is less than 0.67, the actual process quality is at a low level. At this time, the processes with relatively good evaluation results must also be improved
[0004] (2) This method only gives the result of comprehensive evaluation using gray correlation analysis method

Method used

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  • Cigarette quality evaluation method and system based on principal component analysis
  • Cigarette quality evaluation method and system based on principal component analysis
  • Cigarette quality evaluation method and system based on principal component analysis

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1 (cigarette process quality evaluation method):

[0065] Just operate according to the technical solution one in the summary of the invention above.

[0066] Below in conjunction with the process quality evaluation example of the loose moisture regain process in the leaf silk workshop section further illustrate this method:

[0067] 50 sets of data are collected for each of the five main process parameters in the loosening and moisture regaining process as shown in Table 1.

[0068] Table 1 Monitoring table of process parameters in the loosening and moisture regaining process

[0069]

[0070]

[0071] The specification requirements of various process parameters in this process are: moisture content (19.0±1.0)%, temperature (53.0±3.0) ℃, flow rate (6000.0±100.0) Kg / h, hot air temperature (70.0±3.0) ℃, steam injection Amount (1000.0±50.0) Kg / h.

[0072] The data in Table 1 are subjected to the standardization process, and the standardized data are sh...

Embodiment 2

[0089] Embodiment 2 (cigarette process quality evaluation system):

[0090] It can be implemented according to the second technical solution in the above summary of the invention.

[0091] Operation steps of the present invention are as follows:

[0092] (1) The user inputs the user name and password, and the authority management module 1 searches the user authority according to the data in the authority database 8 . If the conditions are met, the user is allowed to operate and use, and is responsible for forcing the user to log out of the system;

[0093] (2) the user imports the data in the process parameter value database 9 into the system through the data import module 2;

[0094] (3) The user selects the process category to be evaluated from the process category database 10 through the process category selection module 4, and sends the data to the data selection and preprocessing module 3;

[0095] (4) Data selection and preprocessing module 3 preprocesses the data imp...

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Abstract

The invention discloses a cigarette quality evaluation method and system based on principal component analysis. The cigarette quality evaluation method and system solves the problem that an existing single-variable evaluation method cannot carry out procedure quality evaluation on multiple-variable procedures. The cigarette quality evaluation method and system uses a principal component analysis method to evaluate processing quality of the multiple-variable procedures and can provide basis for comprehensively grasping procedure quality processing states and procedure quality improvement. The method comprises the steps of firstly, calculating process capability indexes of all processing parameters, then using the principal component analyzing method to analyze all processing parameter data, confirming the number of principal components according to the principle that the accumulative total contribution rate is larger than or equal to 90%, confirming weights of all components according to the explanation variances of all principal components, and finally using an arithmetic weighting method to obtain procedure comprehensive process capability indexes. The cigarette quality evaluation method and system can provide more comprehensive and objective results and provides an effectively tool for an enterprise to know procedure total processing quality situations.

Description

technical field [0001] The invention discloses a cigarette process quality evaluation method and system based on principal component analysis, belonging to the technical field of tobacco process quality evaluation. Background technique [0002] A Chinese patent discloses a "Comprehensive Evaluation System and Method for Cigarette Process Quality Based on Gray Relational Analysis" (Patent No. 200810237698.3). The technical points of the above-mentioned patent are: the system and method described are single-process quality evaluation and gray relational analysis methods The combination of the process capability index of each process parameter is calculated first, and then the Cpk value is comprehensively evaluated by the gray correlation method. The final comprehensive evaluation result is the ranking of the process quality of each evaluation object. Analyze the ranking results of Cpk and process quality. The shortcoming of above-mentioned patent is as follows: [0003] (1) ...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 陈景正
Owner 陈景正
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