CN108208899B - Method for accurately judging initially cured tobacco part - Google Patents
Method for accurately judging initially cured tobacco part Download PDFInfo
- Publication number
- CN108208899B CN108208899B CN201810010974.6A CN201810010974A CN108208899B CN 108208899 B CN108208899 B CN 108208899B CN 201810010974 A CN201810010974 A CN 201810010974A CN 108208899 B CN108208899 B CN 108208899B
- Authority
- CN
- China
- Prior art keywords
- leaf
- cured tobacco
- width
- flue
- tobacco
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B1/00—Preparation of tobacco on the plantation
- A24B1/04—Sifting, sorting, cleaning or removing impurities from tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
Abstract
The invention discloses a method for accurately judging the position of initially cured tobacco. Measuring the length L1 of the leaves of K326 initially-cured tobacco, the width M1 of the widest part of the leaves, the width M2 of the widest part of the leaf bases, the distance L2 from the widest part of the leaf bases to the main stem end, the width M3 of the tail ends of the leaf bases and the distance L3 from the tail ends of the leaf bases to the main stem end, 6 characteristic values are converted into 2 morphological characteristic values, namely the shape L1/M1 of the leaves and the change of the width of the leaf bases (M2-M3)/(L2-L3), and the initial-cured tobacco part index Y is calculated according to the formula Y which is 8.6+2.6 (L1/M1) -6.6 (M2-M3)/(L2-L3), and the lower leaves are obtained if Y is less than 7; if Y is 7-13, the middle leaf is obtained; if Y > 13, it is the upper leaf. The method overcomes the defects of the traditional method for judging the primary flue-cured tobacco part by sense and experience, has simple and convenient operation process, good repeatability and strong operability, and can objectively and accurately judge the tobacco part.
Description
Technical Field
The invention belongs to the technical field of tobacco leaf grading, and particularly relates to a method for accurately judging the position of initially cured tobacco.
Background
The position of the tobacco leaves is an important index for evaluating the quality of the flue-cured tobacco leaves. The tobacco leaves at different positions on the tobacco plant have obvious differences in appearance characteristics, internal quality, physical characteristics and the like due to different illumination conditions, nutrition conditions, environmental conditions during maturation and the like. The difference determines the use value of tobacco leaves at different parts in the cigarette formula. The flue-cured tobacco position identification needs to be comprehensively judged by combining factors such as leaf shape, pulse phase, structure, leaf surface, identity, color and the like. Among them, the leaf shape plays an important role in the determination of the location, and the leaf shape is related to the variety. In the current 42-level national flue-cured tobacco grading standard, the characteristics of primary-cured tobacco parts are qualitatively described, and quantitative description of the characteristics of the parts is lacked. This qualitative description has the characteristics of inaccuracy and ambiguity of extension, which are difficult for the grader to accurately grasp.
At present, the description and judgment method of the parts always stays on the sense qualitative level, quantitative description of part characteristics is lacked, grading personnel mainly judge the parts of the tobacco leaves according to sense and experience, subjective randomness is large, obvious defects exist in objectivity and scientificity, and a plurality of problems and contradictions are caused in the tobacco leaf purchasing and industrial and commercial handover processes. Therefore, a quantitative method capable of accurately and objectively determining the position of the tobacco leaves is required.
Chinese patent application No. 201410726801.6 discloses a flue-cured tobacco position determination method. The method is a method for directly measuring the character characteristics of different quality tobacco leaves by a measuring method, calculating the position scale value of the leaf, and then accurately judging the growth position of the tobacco leaves according to the size of the scale value, and can accurately divide the tobacco leaves into three parts, namely a lower leaf, a middle leaf and an upper leaf. But the method has the defect of low accuracy.
Disclosure of Invention
The invention aims to provide a method for objectively and accurately judging a K326 flue-cured tobacco part by measuring and analyzing a surface shape index of flue-cured tobacco to obtain a part index aiming at the defect of quantifiable indexes in the existing tobacco grading technology.
The purpose of the invention is realized by the following technical scheme:
(1) measuring 6 shape characteristic values of the length (L1) of the leaf of the flue-cured tobacco, the width (M1) of the widest part of the leaf, the width (M2) of the widest part of the leaf base, the distance (L2) from the widest part of the leaf base to the main stem end, the width (M3) of the tail end of the leaf base and the distance (L3) from the tail end of the leaf base to the main stem end;
(2) converting the 6 items of shape characteristic values obtained in the step (1) into the changes of the leaf morphology L1/M1 and the leaf base width
(M2-M3)/(L2-L3)2 morphometric feature values;
(3) according to the morphological characteristic values L1/M1 and (M2-M3)/(L2-L3) obtained in the step (2), calculating the initial flue-cured tobacco site index Y according to the following formula:
Y＝8.6+2.6*(L1/M1)-6.6*(M2-M3)/(L2-L3)；
wherein 8.6 is a constant, 2.6 is a blade form coefficient, and 6.6 is a blade base width variation coefficient.
Further, determining the primary flue-cured tobacco part of K326 according to the calculated index Y value of the primary flue-cured tobacco part, and if Y is less than 7.00, determining the primary flue-cured tobacco part as a lower leaf; if Y is 7.00-13.00, the leaf is the middle leaf; if Y > 13.00, the upper leaf is designated.
Further, the shape characteristic index in the step (1) is directly measured by a conventional ruler.
Further, the initially cured tobacco is K326 tobacco variety initially cured tobacco.
The invention discloses a novel method for quantitatively judging primary flue-cured tobacco parts by using part indexes according to the characteristic that primary flue-cured tobacco of different parts of the same variety has relatively stable appearance characteristics. The method comprises the steps of measuring 6 shape characteristic values of the length (L1) of the leaves from the 1 st to the 22 nd leaf positions of the primary flue-cured tobacco, the width (M1) of the widest part of the leaf, the width (M2) of the widest part of the leaf base, the distance (L2) from the widest part of the leaf base to the main stem end, the width (M3) of the leaf base end and the distance (L3) from the leaf base end to the main stem end, and converting the shape characteristic values into 2 shape characteristic values of the shape of the leaves, namely L1/M1 and the change (M2-M3)/(L2-L3) of the width of the leaf base; the correlation between the leaf position Y and the leaf morphology L1/M1 and the change of the leaf base width (M2-M3)/(L2-L3) is analyzed through SPSS software, and a regression model Y is established, wherein the regression model Y is 8.6+2.6 (L1/M1) -6.6 (M2-M3)/(L2-L3), and the Y is the leaf position, namely the position index. The method is particularly suitable for K326 initially cured tobacco.
Compared with the prior art, the invention has the following advantages: according to the method, the index of the primary flue-cured tobacco part is calculated by measuring the shape characteristic value of the primary flue-cured tobacco, and the primary flue-cured tobacco part is judged, so that the misjudgment of the primary flue-cured tobacco part due to experience and sensory difference of graders can be avoided; the operation is simple and convenient, and the operation can be finished only by using the ruler. Overcomes the defects of the traditional method of judging the primary flue-cured tobacco part by sense and experience, has simple and convenient operation process, good repeatability and strong operability, and can objectively and accurately judge the tobacco part.
Drawings
Fig. 1 is a schematic structural diagram of K326 initially cured tobacco.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the following examples, which are not intended to limit the scope of the present invention.
Example 1
(1) 1 set of 2016K 326 flue-cured tobacco copy samples of a Yunnan Yuxi tobacco area is extracted, 39 flue-cured tobaccos with good integrity are randomly extracted and numbered, and the following 6 shape characteristic values of the K326 flue-cured tobaccos are measured by a ruler: blade length (L1), width at blade widest point (M1), width at base widest point (M2), distance from base widest point to main stem end (L2), width at base tip (M3), and distance from base tip to main stem end (L3), see fig. 1.
(2) The measured 6 shape feature values are converted into 2 morphological feature values: leaf morphology L1/M1 and variation in leaf base width (M2-M3)/(L2-L3).
(3) And calculating the K326 flue-cured tobacco site index Y according to the formula Y of 8.6+2.6 (L1/M1) -6.6 (M2-M3)/(L2-L3), wherein 8.6 is a constant, 2.6 is a leaf form coefficient, and 6.6 is a leaf base width variation coefficient.
K326 the site index Y of each tobacco sample is shown in Table 1, and the data measured with a ruler in the table is the average value of multiple measurements.
TABLE 1 leaf surface shape index values for each tobacco leaf sample
(4) According to the judgment basis: if the part index Y is less than 7.00, the lower leaf is determined; if the part index Y is 7.00-13.00, the part index is the middle leaf; if the site index Y > 13.00, it is the upper leaf. As can be seen from table 1, among the 39 samples judged, T1 to T13 were the lower leaves, T14 to T27 were the middle leaves, and T28 to T39 were the upper leaves. The K326 primary flue-cured tobacco part is judged according to the method of the invention, and is 100 percent identical with the tobacco part judged according to the national standard of 42-grade flue-cured tobacco, and the accuracy rate is extremely high.
For comparison, the position of the K326 primarily cured tobacco is judged by adopting the scheme disclosed by the prior art CN201410726801.6, after the primarily cured tobacco is remoistened (the remoistening moisture is 16-18%), the length L1 of the leaf and the vertical distance L6 from the main stem end of the leaf to the widest position of the leaf are measured by a ruler, and the position scale value is calculated, wherein the position scale value B is 2L6/L1, the position scale value B is less than or equal to 0.9 and is used as the lower leaf, the position scale value B is less than or equal to 1 and is 0.9 and is used as the middle leaf, and the position scale value B is more than 1 and is used as the upper leaf. The parameters and the part scale values of the K326 initially cured tobacco are shown in Table 2.
TABLE 2
As can be seen from table 2, the method of the comparison document determines that the result of the upper tobacco is more accurate and matches the actual grade when determining the K326 flue-cured tobacco leaves, but the method has a lower accuracy when determining the middle and lower tobacco parts. Therefore, the method is not suitable for judging K326 initially cured tobacco.
Claims (2)
1. A method for accurately judging the position of initially cured tobacco is characterized by comprising the following steps:
(1) measuring 6 shape characteristic values of the length L1 of leaves of the flue-cured tobacco, the width M1 of the widest part of the leaves, the width M2 of the widest part of a leaf base, the distance L2 from the widest part of the leaf base to a main stem end, the width M3 of the tail end of the leaf base and the distance L3 from the tail end of the leaf base to the main stem end, wherein the flue-cured tobacco is a K326 tobacco variety;
(2) converting the 6 items of shape characteristic values obtained in the step (1) into 2 shape characteristic values of the leaf shape L1/M1 and the change of the leaf base width (M2-M3)/(L2-L3);
(3) calculating the initial flue-cured tobacco site index Y according to the following formula according to the morphological feature values L1/M1 and (M2-M3)/(L2-L3) obtained in the step (2), wherein Y is 8.6+2.6 (L1/M1) -6.6 (M2-M3)/(L2-L3);
wherein 8.6 is a constant, 2.6 is a blade form coefficient, and 6.6 is a blade base width variation coefficient; judging the primary flue-cured tobacco part according to the calculated index Y value of the primary flue-cured tobacco part, and if Y is less than 7.00, determining the primary flue-cured tobacco part as a lower leaf; if Y is 7.00-13.00, the leaf is the middle leaf; if Y > 13.00, the upper leaf is designated.
2. The method for accurately determining the position of flue-cured tobacco according to claim 1, wherein the shape characteristic value in the step (1) is directly measured by a ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810010974.6A CN108208899B (en) | 2018-01-05 | 2018-01-05 | Method for accurately judging initially cured tobacco part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810010974.6A CN108208899B (en) | 2018-01-05 | 2018-01-05 | Method for accurately judging initially cured tobacco part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108208899A CN108208899A (en) | 2018-06-29 |
| CN108208899B true CN108208899B (en) | 2020-12-11 |
Family
ID=62642916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810010974.6A Active CN108208899B (en) | 2018-01-05 | 2018-01-05 | Method for accurately judging initially cured tobacco part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108208899B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124784B (en) * | 2021-03-17 | 2022-08-05 | 红塔烟草(集团)有限责任公司 | Primary flue-cured tobacco part judgment method based on laser scanning confocal technology |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104432458B (en) * | 2014-12-04 | 2016-09-28 | 中国农业科学院烟草研究所 | A kind of flue-cured tobacco position decision method |
| CN105996112A (en) * | 2016-04-13 | 2016-10-12 | 福建中烟工业有限责任公司 | Tobacco leaf quality grading method |
-
2018
- 2018-01-05 CN CN201810010974.6A patent/CN108208899B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108208899A (en) | 2018-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107796782B (en) | Redrying quality stability evaluation method based on tobacco leaf characteristic spectrum consistency measurement | |
| CN105891147A (en) | Near infrared spectrum information extraction method based on canonical correlation coefficients | |
| CN108181263B (en) | Tobacco leaf position feature extraction and discrimination method based on near infrared spectrum | |
| WO2017045296A1 (en) | Online near-infrared sample size determining method | |
| CN102749140A (en) | Tobacco leaf surface color uniformity judging method of flue-cured tobacco | |
| CN105092789B (en) | Tobacco style changing features trend analysis in a kind of sheet nicotinyl alcohol process | |
| CN107543795B (en) | Method for distinguishing production place of flue-cured tobacco | |
| CN108208899B (en) | Method for accurately judging initially cured tobacco part | |
| CN105029672B (en) | Precise characterization method for water at outlet of baked cut tobacco | |
| CN110196265A (en) | Method based on pipe tobacco distributional stability in distribution probability evaluation batch inner wrap strip cigarette | |
| CN110726646A (en) | Method for evaluating stability of cigarette axial density distribution | |
| CN101685092A (en) | Method for judging alcoholization quality of flue-cured tobacco by pH detection value of tobacco leaf | |
| CN106918525A (en) | A kind of offal volume change detection method | |
| CN107677619B (en) | Method for distinguishing middle leaf and upper leaf of flue-cured tobacco | |
| CN104432458A (en) | Method for determining parts of flue-cured tobacco | |
| CN108260850A (en) | A kind of method of the adhesive-free area area of determining rolling up and connecting machine | |
| CN105628646A (en) | Online cigarette tar predicting and warning method | |
| CN106126952A (en) | The modification method of Nicotiana tabacum L. measurement of water-content coefficient value under non-standard atmospheric pressure | |
| CN109916971B (en) | Rapid nondestructive testing method for fresh tobacco moisture based on capacitor | |
| CN103675218A (en) | Method for indicating uniformity of tobacco leaf pulp reproduced by using paper-making process | |
| CN103593561A (en) | Method for representing style characteristics of tobacco by adopting characteristic indexes | |
| CN110333177B (en) | Cigarette segmented suction resistance nondestructive rapid detection evaluation method based on cigarette paper air permeability stability | |
| CN113933433A (en) | Verification method for filter stick plasticizer applying system | |
| CN110286663B (en) | Regional cigarette physical index standardized production improving method | |
| CN107941997A (en) | Draw the method that flue-cured tobacco cultivars planting area is selected and verified outside a kind of |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |