Tobacco homogenization regulation and control interval division method

Abstract

The invention provides a tobacco homogenization regulation and control interval division method. The method includes the following steps of firstly, obtaining chemical value information of tobacco leaves; secondly, ranking the chemical value information of the tea leaves; thirdly, making the division number of chemical value intervals range from 2 to k; fourthly, conducting positioning 1000 times for the division method of m intervals according to the endpoints of random positioning intervals of m-1 points; fifthly, counting the distribution of chemical values of each interval; sixthly, simulating tobacco leaf delivery; seventhly, calculating the variable coefficient of intra-batch chemical values and the variable coefficient of the between-batch chemical values according to the delivery batch; eighthly, repeatedly executing the fifth step to the seventh step N times; ninthly, calculating the MPCV and MSCV stability of each interval division method, and finding the minimum division modes of the MPCV and the MSCV respectively to serve as final division modes. By means of the method, the homogenization regulation and control level of tobacco leaves is improved.

Description

technical field [0001] The invention relates to a method for dividing tobacco leaf homogenization control intervals, which belongs to the field of tobacco product production quality control. Background technique [0002] With the gradual improvement of people's requirements for the quality of tobacco leaves in recent years, homogeneous production is more and more used in the field of threshing and redrying. The field of index control is becoming more and more important; in the process of general tobacco leaf quality control, it is necessary to delineate several intervals for the chemical index of tobacco leaves, and then group batches out of the warehouse according to the intervals to achieve stable production of tobacco leaf quality. During the process, the division of intervals generally has the following principles: (a): intervals are generally not allowed to cross; (b): too many intervals will affect the efficiency of the elevated warehouse delivery; [0003] In the gen...

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Problems solved by technology

[0011] The coefficient of variation between A and D in this planning interval is relatively large; and the standard deviation of interval C is also large; from this batch of data, because of the large difference between the intervals, no matter what method is used to form a formula sheet out of the warehouse, it cannot Good control over the mean of chemical values;

[0012] (2) The equal partition interval will cause the two ends of the chemical value interval to be large and the middle small; resulting in instability of the chemical value interval;

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