CN111402193A - Method and related device for analyzing integrity of cigarette ash - Google Patents
Method and related device for analyzing integrity of cigarette ash Download PDFInfo
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- CN111402193A CN111402193A CN201811646868.3A CN201811646868A CN111402193A CN 111402193 A CN111402193 A CN 111402193A CN 201811646868 A CN201811646868 A CN 201811646868A CN 111402193 A CN111402193 A CN 111402193A
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Abstract
The embodiment of the application discloses a method for analyzing soot integrity and a related device, comprising the following steps: acquiring an ash image when the burning length of a cigarette reaches each preset first length, wherein the preset first length comprises a plurality of different lengths; determining the first acquired cigarette ash image as a cigarette ash analysis image of a first section of a cigarette; determining a target position in the soot image acquired at the Nth time, enabling the area of the soot image above the target position to be the same as that of the soot image acquired at the Nth-1 th time, and taking the portion of the soot image below the preset position as an N-section soot analysis image of the cigarette, wherein N is an integer greater than or equal to 2; the soot integrity of each segment of tobacco rod is calculated by analyzing the soot analysis image. Used for analyzing the integrity of the cigarette in the combustion process so as to measure the quality of the cigarette.
Description
Technical Field
The present application relates to the field of soot analysis technologies, and in particular, to a soot integrity analysis method and a related device.
Background
At present, the cigarette becomes a necessary product for some people. And the falling of the ash can bring inconvenience to people. Therefore, for the convenience of users, the integrity of the cigarette ash becomes an important index for measuring the quality of the cigarette.
Therefore, there is a need to provide a method for soot integrity analysis.
Disclosure of Invention
The embodiment of the application provides a method for analyzing the integrity of cigarette ash, which is used for analyzing the integrity of a cigarette in the combustion process so as to measure the quality of the cigarette.
In view of the above, the first aspect of the present application provides a method for soot integrity analysis, comprising:
acquiring an ash image when the burning length of a cigarette reaches each preset first length, wherein the preset first length comprises a plurality of different lengths;
determining the first acquired cigarette ash image as a cigarette ash analysis image of a first section of a cigarette;
determining a target position in the soot image acquired at the Nth time, enabling the area of the soot image above the target position to be the same as that of the soot image acquired at the Nth-1 th time, and taking the portion of the soot image below the preset position as an N-section soot analysis image of the cigarette, wherein N is an integer greater than or equal to 2;
the soot integrity of each segment of tobacco rod is calculated by analyzing the soot analysis image.
Preferably, the first and second electrodes are formed of a metal,
calculating the integrity of the cigarette ash of each segment by analyzing the cigarette ash analysis image comprises:
for each section of cigarettes, the preset second length is taken as the unit length, and the cigarette ash analysis image corresponding to each section of cigarettes with the unit length is determined according to the equal proportion rule;
the integrity of the cigarette ash per unit length is calculated.
Preferably, the first and second electrodes are formed of a metal,
the equal proportion rule is as follows: for the section X of cigarettes, the length of unit cigarette is the same as the length of the section X of cigarettes in first proportion and second proportion, the second proportion is the proportion of the height of the cigarette ash analysis image corresponding to the section X of cigarettes in unit length to the height of the cigarette ash analysis image corresponding to the section X of cigarettes, wherein X is an integer greater than or equal to 1.
Preferably, the first and second electrodes are formed of a metal,
the equal proportion rule is as follows: for the section X, the cigarette with unit length has the same first proportion and second proportion with the length of the section X, the second proportion is the proportion of the area of the cigarette ash analysis image corresponding to the section X to the area of the cigarette ash analysis image corresponding to the section X, wherein X is an integer more than or equal to 1.
Preferably, the first and second electrodes are formed of a metal,
after calculating the integrity of the cigarette ash per unit length, the method further comprises the following steps:
the cigarette top end is used as an initial position, the cigarette length is used as a horizontal coordinate, the cigarette ash integrity is used as a vertical coordinate, and a cigarette ash integrity trend graph of the cigarette is generated according to the cigarette ash integrity of the cigarette per unit length.
Preferably, the first and second electrodes are formed of a metal,
after calculating the integrity of the cigarette ash per unit length, the method further comprises the following steps:
and calculating the variation coefficient of the cigarette integrity according to the cigarette ash integrity of the cigarette with unit length.
A second aspect of the present application provides an apparatus for soot integrity analysis, comprising:
the cigarette ash acquisition device comprises an acquisition unit, a storage unit and a processing unit, wherein the acquisition unit is used for acquiring an ash image when the burning length of a cigarette reaches each preset first length, and the preset first length comprises a plurality of different lengths;
the cigarette ash analysis image determining unit is used for determining the cigarette ash image acquired for the first time as a cigarette ash analysis image of a first section of a cigarette;
the cigarette ash analysis image determining unit is further used for determining a target position in the cigarette ash image acquired at the Nth time, so that the area of the cigarette ash image above the target position is the same as that of the cigarette ash image acquired at the N-1 st time, and taking the part of the cigarette ash image below the preset position as the cigarette ash analysis image of the Nth section of the cigarette, wherein N is an integer greater than or equal to 2;
and the integrity analysis unit is used for calculating the soot integrity of each section of cigarette by analyzing the soot analysis image.
Preferably, the first and second electrodes are formed of a metal,
the integrity analysis unit is specifically configured to: for each section of cigarettes, the preset second length is taken as the unit length, and the cigarette ash analysis image corresponding to each section of cigarettes with the unit length is determined according to the equal proportion rule;
the integrity of the cigarette ash per unit length is calculated.
Preferably, the first and second electrodes are formed of a metal,
the device, still include:
and the coefficient of variation calculating unit is used for calculating the coefficient of variation of the cigarette integrity according to the cigarette ash integrity of the cigarette with unit length.
A third aspect of the present application provides a computer readable storage medium for storing program code for performing any of the methods of soot integrity analysis described in the first aspect of the present application.
According to the technical scheme, the embodiment of the application has the following advantages:
in an embodiment of the present application, there is provided a method for soot integrity analysis, including: firstly, acquiring an ash image when the burning length of a cigarette reaches each preset first length, wherein the preset first length comprises a plurality of different lengths; because the generated cigarette ash can be changed in the process of cigarette combustion later, if the cigarette to be completely combusted is obtained, the integrity data obtained by final analysis can be inaccurate, because a plurality of first lengths are set in the embodiment of the application, the cigarette ash image can be obtained when the combustion length reaches one of the preset lengths, and the accuracy of the integrity data is ensured;
then determining the first obtained soot image as a soot analysis image of a first section of the cigarette; determining a target position in the soot image acquired at the Nth time, enabling the area of the soot image above the target position to be the same as that of the soot image acquired at the Nth-1 th time, and taking the portion of the soot image below the preset position as a soot analysis image of the Nth section of the cigarette, wherein N is an integer greater than or equal to 2;
calculating the integrity of the cigarette ash of each section of cigarette by analyzing the cigarette ash analysis image;
therefore, the embodiment of the application provides a method for analyzing the integrity of cigarettes in the combustion process, so as to measure the quality of the cigarettes, and can also be used for comparing the quality of the two cigarettes.
Drawings
FIG. 1 is a schematic flow chart of a first embodiment of a method of soot integrity analysis in an embodiment of the present application;
FIG. 2 is a schematic flow chart of a second embodiment of a method of soot integrity analysis in an embodiment of the present application;
FIG. 3 is a schematic diagram of an embodiment of an apparatus for soot integrity analysis in an embodiment of the present application;
FIG. 4 is an image of ash from a cigarette burning 10mm according to an embodiment of the present disclosure;
FIG. 5 is an image of 20mm of ash as a cigarette is burned according to an embodiment of the present disclosure;
FIG. 6 is an image of ash from a cigarette burning 30mm in an embodiment of the present application;
FIG. 7 is an image of 40mm of burned ash in an embodiment of the present application;
FIG. 8 is an image of ash from a cigarette burning 50mm in an embodiment of the present application;
FIG. 9 is a graph illustrating the trend of soot integrity of two cigarettes in an example of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a schematic flow chart of a first embodiment of a soot integrity analysis method in an embodiment of the present application is shown.
An embodiment of the present application provides a method of soot integrity analysis, comprising:
It should be noted that, the cigarette ash generated may change in the process of burning the cigarette later, so if the cigarette is completely burnt and the integrity data obtained by the final analysis may be inaccurate, because the embodiment of the present application sets the plurality of first lengths, the cigarette ash image may be obtained when the burning length reaches one of the preset lengths, thereby ensuring the accuracy of the integrity data.
The setting of the first length can be adjusted according to actual needs, for example, assuming that the total burning length of the cigarette is 50mm, the first length can be respectively set to 10mm, 20mm, 30mm, 40mm and 50mm, the cigarette is continuously burned, when the burning length reaches 10mm, 20mm, 30mm, 40mm and 50mm, a cigarette ash image is obtained once, as shown in fig. 4 to 8, and finally 5 gray scale images are obtained.
It is understood that the first acquired soot image is the soot image generated by the first stage combustion of the cigarette, for example, the gray scale image shown in fig. 4 is the soot image when the length of the cigarette is 10 mm.
And 103, determining a target position in the soot image acquired at the Nth time, so that the area of the soot image above the target position is the same as that of the soot image acquired at the N-1 th time, and taking the portion of the soot image below the preset position as the soot analysis image of the Nth section of the cigarette, wherein N is an integer greater than or equal to 2.
It should be noted that, in the embodiment of the present application, the area of the soot image acquired N-1 times is acquired, and then for the N acquired soot images, the area of the soot image may be calculated from the upper end of the soot image, and when a position is calculated, if the area of the soot image between the position and the upper end of the soot image is the same as the area of the soot image acquired N-1 times, the position is the target position.
By the method, the corresponding soot analysis image of each section of the cigarette can be determined, and by taking the soot images shown in fig. 4 to 8 as examples, 5 soot analysis images corresponding to five sections of the cigarette, namely 0-10mm, 10-20 mm, 20-30 mm, 30-40 mm and 40-50 mm, can be finally determined.
It should be noted that, in the embodiment of the present application, the execution of step 103 and step 102 are not in a sequential order, and fig. 1 shows one of the orders.
And 104, calculating the integrity of the cigarette ash of each section by analyzing the cigarette ash analysis image.
It is understood that the calculation of soot integrity from soot analysis images is a prior art implementation and is not described in detail herein.
The embodiment of the application provides a method for analyzing the integrity of cigarettes in the combustion process, so that the quality of the cigarettes can be measured, and the method can also be used for comparing the quality of the two cigarettes. Preferably, the first and second electrodes are formed of a metal,
referring to fig. 2, a flow chart of a second embodiment of a soot integrity analysis method according to an embodiment of the present application is shown.
The content of step 201 is the same as that of step 101 in the first embodiment, and specific description may refer to description of relevant parts in the first embodiment, which is not described herein again.
The content of step 202 is the same as that of step 102 in the first embodiment, and specific description may refer to description of relevant parts in the first embodiment, which is not repeated herein.
The content of step 203 is the same as that of step 103 in the first embodiment, and specific description may refer to the description of relevant parts in the first embodiment, which is not repeated herein.
And 204, for each section of cigarette, taking the preset second length as the unit length, and determining the cigarette ash analysis image corresponding to each section of cigarette with the unit length according to the equal proportion rule.
It should be noted that the preset second length can be set according to actual needs, for example, 1mm is taken as a unit length.
In the embodiment of the present application, the equal proportion rule may be: for the section X of cigarettes, the first proportion and the second proportion of the length of the section X of cigarettes are the same, the second proportion is the proportion of the height of the cigarette ash analysis image corresponding to the section X of cigarettes to the height of the cigarette ash analysis image corresponding to the section X of cigarettes, and X is an integer greater than or equal to 1.
The equal proportion rule may also be: for the section X of cigarettes, the first proportion and the second proportion of the length of the section X of cigarettes are the same, the second proportion is the proportion of the area of the cigarette ash analysis image corresponding to the section X of cigarettes to the area of the cigarette ash analysis image corresponding to the section X of cigarettes, and X is an integer greater than or equal to 1.
And step 206, generating a cigarette ash integrity trend graph of the cigarettes according to the cigarette ash integrity of the cigarettes per unit length by taking the top end of each cigarette as an initial position, the length of each cigarette as a horizontal coordinate and the cigarette ash integrity as a vertical coordinate.
As shown in fig. 9, the soot integrity trend of two cigarettes in the present embodiment is shown.
And step 207, calculating the variation coefficient of the cigarette integrity according to the cigarette ash integrity of the cigarette with unit length.
The coefficient of variation method includes
And
three calculation formulas, wherein MN is the mean value, SD is the standard deviation, CV is the coefficient of variation, xi is the combustion integrity data on the corresponding length of the cigarette combustion, and N is the number of the cigarette combustion integrity data; the CV value reflects the uniformity of the combustion integrity of the cigarette, and the smaller the CV value is, the better the uniformity is.
The embodiment of the application evaluates the uniformity degree of the soot integrity by calculating the variation coefficient of the soot integrity.
For ease of understanding, the present application provides an example of an application of the method for soot integrity analysis, specifically as follows:
taking two cigarettes of A and B brands, testing by adopting an ISO suction mode, and setting the burning length of each cigarette to be 50 mm; then the A and B brands of cigarettes are respectively inserted into a sample seat with a suction function, the camera is adjusted to be aligned with the testing channel, and the cigarettes are ignited.
Then when the cigarettes are burnt to 10mm, 20mm, 30mm, 40mm and 50mm, the cigarette ash images of the A-grade are collected, the cigarette ash images of the A-grade are respectively shown in figures 4 to 8, then the cigarette ash integrity of the cigarettes per unit length is calculated by taking 1mm as the unit length, and the cigarette ash integrity data corresponding to the lengths of part of the cigarettes of the A-grade and the B-grade are shown in the following table.
And then, taking the top end of the cigarette as an initial position, the length of the cigarette as a horizontal coordinate and the integrity of the cigarette ash as a vertical coordinate, and generating a trend chart of the integrity of the cigarette ash of the cigarette according to the integrity of the cigarette ash of each unit length, as shown in fig. 9.
As can be seen from FIG. 9, the trend of the integrity of the burning ash of the cigarette under the brand B begins to change greatly, but quickly stabilizes around 8 percent, and the fluctuation range is small; the integrity of the cigarette ash of the A-grade cigarette is always improved and finally tends to be stable, and the fluctuation range is large; therefore, the integrity of the burning cigarette ash of the cigarette with the grade B is better than that of the cigarette with the grade A.
Finally, the uniformity of the integrity of the ash of the cigarettes of the A and B brands is calculated, as shown in the following table.
As can be seen from the table above, the variation coefficient of the integrity data of the burning cigarette ash of the cigarette with the grade B is much smaller than that of the cigarette with the grade A, so that the uniformity degree of the integrity of the burning cigarette ash of the cigarette with the grade B is better than that of the cigarette with the grade A.
Referring to fig. 3, a schematic structural diagram of an embodiment of an apparatus for soot integrity analysis in an embodiment of the present application is shown.
The embodiment of the application provides a device of cigarette ash integrality analysis, includes:
the acquisition unit 301 is used for acquiring an ash image when the acquired cigarette burning length reaches each preset first length, and the preset first length comprises a plurality of different lengths.
A soot analysis image determining unit 302, configured to determine the first acquired soot image as a soot analysis image of a first section of a cigarette.
The soot analysis image determining unit 302 is further configured to determine a target position in the N-th acquired soot image, so that the area of the soot image above the target set position is the same as the area of the soot image acquired in the N-1 th acquired soot image, and take the portion of the soot image below the target set position as the N-th section of the cigarette soot analysis image, where N is an integer greater than or equal to 2.
An integrity analysis unit 303, configured to calculate the integrity of the cigarette ash of each segment by analyzing the cigarette ash analysis image.
Further, the integrity analysis unit 303 may be specifically configured to:
for each section of cigarettes, the preset second length is taken as the unit length, and the cigarette ash analysis image corresponding to each section of cigarettes with the unit length is determined according to the equal proportion rule;
the integrity of the cigarette ash per unit length is calculated.
Further, the soot integrity analysis device may further include:
the coefficient of variation calculating unit 304 is configured to calculate a coefficient of variation of cigarette integrity according to the cigarette ash integrity of the cigarette per unit length.
Embodiments of the present application also provide a computer-readable storage medium for storing program code for performing any of the methods of soot integrity analysis in embodiments of the present application.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A method of soot integrity analysis, comprising:
acquiring an ash image when the burning length of a cigarette reaches each preset first length, wherein the preset first length comprises a plurality of different lengths;
determining the first acquired cigarette ash image as a cigarette ash analysis image of a first section of a cigarette;
determining a target position in the soot image acquired at the Nth time, enabling the area of the soot image above the target position to be the same as that of the soot image acquired at the Nth-1 th time, and taking the portion of the soot image below the preset position as an N-section soot analysis image of the cigarette, wherein N is an integer greater than or equal to 2;
the soot integrity of each segment of tobacco rod is calculated by analyzing the soot analysis image.
2. The method of claim 1, wherein calculating the soot integrity of each segment of tobacco rod by analyzing the soot analysis image comprises:
for each section of cigarettes, the preset second length is taken as the unit length, and the cigarette ash analysis image corresponding to each section of cigarettes with the unit length is determined according to the equal proportion rule;
the integrity of the cigarette ash per unit length is calculated.
3. The method of claim 2, wherein the scaling rule is: for the section X of cigarettes, the length of unit cigarette is the same as the length of the section X of cigarettes in first proportion and second proportion, the second proportion is the proportion of the height of the cigarette ash analysis image corresponding to the section X of cigarettes in unit length to the height of the cigarette ash analysis image corresponding to the section X of cigarettes, wherein X is an integer greater than or equal to 1.
4. The method of claim 2, wherein the scaling rule is: for the section X, the cigarette with unit length has the same first proportion and second proportion with the length of the section X, the second proportion is the proportion of the area of the cigarette ash analysis image corresponding to the section X to the area of the cigarette ash analysis image corresponding to the section X, wherein X is an integer more than or equal to 1.
5. The method of claim 2, further comprising, after calculating the soot integrity of the cigarette per unit length:
the cigarette top end is used as an initial position, the cigarette length is used as a horizontal coordinate, the cigarette ash integrity is used as a vertical coordinate, and a cigarette ash integrity trend graph of the cigarette is generated according to the cigarette ash integrity of the cigarette per unit length.
6. The method of claim 2, further comprising, after calculating the soot integrity of the cigarette per unit length:
and calculating the variation coefficient of the cigarette integrity according to the cigarette ash integrity of the cigarette with unit length.
7. An apparatus for soot integrity analysis, comprising:
the cigarette ash acquisition device comprises an acquisition unit, a storage unit and a processing unit, wherein the acquisition unit is used for acquiring an ash image when the burning length of a cigarette reaches each preset first length, and the preset first length comprises a plurality of different lengths;
the cigarette ash analysis image determining unit is used for determining the cigarette ash image acquired for the first time as a cigarette ash analysis image of a first section of a cigarette;
the cigarette ash analysis image determining unit is further used for determining a target position in the cigarette ash image acquired at the Nth time, so that the area of the cigarette ash image above the target position is the same as that of the cigarette ash image acquired at the N-1 st time, and taking the part of the cigarette ash image below the preset position as the cigarette ash analysis image of the Nth section of the cigarette, wherein N is an integer greater than or equal to 2;
and the integrity analysis unit is used for calculating the soot integrity of each section of cigarette by analyzing the soot analysis image.
8. The apparatus according to claim 7, wherein the integrity analysis unit is specifically configured to: for each section of cigarettes, the preset second length is taken as the unit length, and the cigarette ash analysis image corresponding to each section of cigarettes with the unit length is determined according to the equal proportion rule;
the integrity of the cigarette ash per unit length is calculated.
9. The apparatus of claim 7, further comprising:
and the coefficient of variation calculating unit is used for calculating the coefficient of variation of the cigarette integrity according to the cigarette ash integrity of the cigarette with unit length.
10. A computer-readable storage medium for storing program code for performing the method of soot integrity analysis of any of claims 1-6.
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| US20220358682A1 (en) * | 2020-09-16 | 2022-11-10 | China Tobacco Yunnan Industrial Co., Ltd | Device and method for detecting cigarette fly ash by gray-scale difference based on machine vision (mv) |
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