Method and system for controlling moisture adding amount of loose tobacco

Abstract

The embodiment of the present application provides a kind of tobacco loose moisture content control method and system, the method comprises: collecting tobacco characteristics for feature analysis, determine tobacco grade;Through moisture meter, the correlation data of different tobacco grades of tobacco is collected, the correction value of the moisture meter corresponding to different tobacco grades is determined, and the mapping relationship between tobacco grade and correction value is established;The arrival time axis of sheet tobacco to reach the moisture cylinder, the entering time axis of sheet tobacco to completely enter the moisture cylinder;Based on the arrival time axis, entering time axis and tobacco grade, generate tobacco grade time axis, and determine the change curve of correction value in combination with mapping relationship, and based on the change curve, the correction value of moisture meter at the inlet and outlet of moisture cylinder is dynamically adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco processing control, and particularly relates to a method and system for controlling water addition quantity of loose conditioning and moisture recovery of tobacco leaves. BACKGROUND

[0002] The current tobacco industry is highly competitive, and high-quality products will inevitably improve the competitiveness of enterprises. The cigarette primary processing technology is the main process of cigarette production, and loose conditioning and moisture recovery is the main processing procedure in the primary processing, and the outlet moisture is a key quality index affecting the quality of products in subsequent procedures.

[0003] The current industry mainly uses closed-loop control and open-loop control to control the outlet moisture of loose conditioning and moisture recovery. The closed-loop control automatically adjusts the water addition quantity according to the real-time outlet moisture, so as to control the outlet moisture. However, the automatic adjustment of the water addition quantity is based on the size of the outlet moisture, and cannot be adjusted according to the situation of the tobacco leaves. SUMMARY

[0004] In view of the problems in the prior art, the present application provides a method and system for controlling water addition quantity of loose conditioning and moisture recovery of tobacco leaves.

[0005] The present application provides a method for controlling water addition quantity of loose conditioning and moisture recovery of tobacco leaves, comprising:

[0006] Collecting tobacco leaf characteristics, and performing characteristic analysis according to the tobacco leaf characteristics, and determining the tobacco leaf grade of the corresponding tobacco leaves based on the characteristic analysis result;

[0007] Collecting associated data of different tobacco leaf grades by using a moisture meter, and determining the correction value of the moisture meter corresponding to different tobacco leaf grades based on the result of the associated data collection, and establishing a mapping relationship between the tobacco leaf grade and the correction value;

[0008] Obtaining real-time production information of the loose conditioning and moisture recovery line of tobacco strips, generating the arrival time axis of the tobacco strips to the conditioning cylinder and the entering time axis of the tobacco strips completely entering the conditioning cylinder, and the arrival time axis and the entering time axis further include the tobacco leaf grade corresponding to the tobacco strips;

[0009] Generating a tobacco leaf grade time axis based on the arrival time axis, the entering time axis and the tobacco leaf grade, determining the change curve of the correction value in combination with the mapping relationship, and dynamically adjusting the correction value of the moisture meter at the inlet and outlet of the conditioning cylinder based on the change curve.

[0010] In one of the embodiments, the method further comprises:

[0011] Determining the characteristic grade corresponding to the tobacco leaf characteristics according to the characteristic analysis result, and calculating the tobacco leaf grade corresponding to the tobacco leaves in combination with a preset weight determination rule, wherein the tobacco leaf characteristics include appearance characteristics, aroma characteristics, density characteristics and chemical composition.

[0012] In one of the embodiments, the method further comprises:

[0013] performing sample testing and data analysis with the tobacco leaf characteristics as variables, and counting the corresponding relationship between the tobacco leaf characteristics and the moisture content,

[0014] designing an association algorithm between the feature grades and the tobacco leaf characteristics based on the weight determination rule, and obtaining the corresponding relationship between the feature grades and the moisture content in combination with the corresponding relationship between the tobacco leaf characteristics and the moisture content;

[0015] determining the correction value of the moisture meter corresponding to different tobacco leaf grades based on the corresponding moisture demand value of the tobacco leaf characteristics in combination with the corresponding relationship between the feature grades and the moisture content.

[0016] In one of the embodiments, the method further comprises:

[0017] performing sample testing and data analysis with the water temperature of the correction water of the moisture meter as a variable, counting the corresponding relationship between the water temperature of the correction water and the correction result, and determining the optimal water temperature corresponding to different tobacco leaf grades based on the corresponding relationship between the water temperature of the correction water and the correction result;

[0018] The correction value change curve further comprises:

[0019] The optimal water temperature corresponding to the correction value.

[0020] In one of the embodiments, the method further comprises:

[0021] establishing a moisture meter correction value real-time feedback system, and sending the mapping relationship between the tobacco leaf grades and the correction values to the feedback system;

[0022] The mapping relationship is combined to determine the correction value change curve, and the correction value of the moisture meter at the inlet and outlet of the humidification cylinder is dynamically adjusted based on the change curve, which comprises:

[0023] The tobacco leaf grade timeline is sent to the feedback system, the correction value change curve is determined in combination with the mapping relationship, and the correction signal is continuously sent to the moisture meter at the inlet and outlet of the humidification cylinder based on the change curve for real-time dynamic adjustment.

[0024] The embodiment of the present application provides a tobacco leaf loose rehydration water adding amount control system, which comprises:

[0025] A collection module is configured to collect tobacco leaf characteristics, perform feature analysis according to the tobacco leaf characteristics, and determine the tobacco leaf grade of the corresponding tobacco leaf based on the feature analysis result.

[0026] The mapping module is configured to collect associated data of different tobacco grades by using the moisture meter, and determine correction values of the moisture meter corresponding to different tobacco grades based on a result of the associated data collection, and establish a mapping relationship between the tobacco grades and the correction values.

[0027] The timeline module is configured to acquire real-time production information of the loose rehydration line of the strip tobacco, generate an arrival timeline of the strip tobacco reaching the moisture cylinder and an entering timeline of the strip tobacco completely entering the moisture cylinder, and the arrival timeline and the entering timeline further include the tobacco grades corresponding to the strip tobacco.

[0028] The adjustment module is configured to generate a tobacco grade timeline based on the arrival timeline, the entering timeline and the tobacco grades, determine a change curve of the correction values in combination with the mapping relationship, and dynamically adjust the correction values of the moisture meters at the inlet and the outlet of the moisture cylinder based on the change curve.

[0029] In one of the embodiments, the system further includes:

[0030] The feature module is configured to determine feature grades corresponding to the tobacco features based on the feature analysis result, and calculate the tobacco grades corresponding to the tobacco based on a preset weight determination rule, wherein the tobacco features include appearance features, aroma features, density features and chemical components.

[0031] In one of the embodiments, the system further includes:

[0032] The analysis module is configured to perform sample testing and data analysis with the tobacco features as variables, and count corresponding relationships between the tobacco features and the moisture content.

[0033] The algorithm module is configured to design an association algorithm between the feature grades and the tobacco features based on the weight determination rule, and obtain corresponding relationships between the feature grades and the moisture content in combination with the corresponding relationships between the tobacco features and the moisture content.

[0034] The correction value module is configured to determine moisture demand values corresponding to the tobacco features based on the tobacco features, and determine correction values of the moisture meters corresponding to different tobacco grades in combination with the corresponding relationships between the feature grades and the moisture content.

[0035] An electronic device is provided in an embodiment of the present application, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the tobacco loose rehydration water addition amount control method when executing the program.

[0036] A non-transitory computer readable storage medium is provided in an embodiment of the present application, which stores a computer program, and the computer program implements the steps of the tobacco loose rehydration water addition amount control method when executed by a processor.

[0037] The method and system for controlling the moisture adding amount of loose tobacco rehydration provided by the embodiment of the present application collect tobacco characteristics, perform characteristic analysis according to the tobacco characteristics, determine the tobacco grade of the corresponding tobacco based on the characteristic analysis result, collect associated data of the tobacco of different tobacco grades by the moisture meter, determine the correction value of the moisture meter corresponding to different tobacco grades based on the result of the associated data collection, establish the mapping relationship between the tobacco grade and the correction value, obtain the real-time production information of the loose tobacco rehydration line, generate the arrival time axis of the tobacco sheet to the moisture cylinder and the entering time axis of the tobacco sheet completely entering the moisture cylinder, and the arrival time axis and the entering time axis further include the tobacco grade corresponding to the tobacco sheet, generate the tobacco grade time axis based on the arrival time axis, the entering time axis and the tobacco grade, determine the change curve of the correction value in combination with the mapping relationship, and dynamically adjust the correction value of the moisture meter at the inlet and outlet of the moisture cylinder based on the change curve. In this way, the correction of the water adding amount of the corresponding moisture meter can be performed for different tobaccos, so that the moisture of the tobacco is better adjusted and the production quality of the tobacco is improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0039] Figure 1 The flowchart of the method for controlling the moisture adding amount of loose tobacco rehydration in the embodiment of the present application is shown in the figure.

[0040] Figure 2 The structural diagram of the control system for the moisture adding amount of loose tobacco rehydration in the embodiment of the present application is shown in the figure.

[0041] Figure 3 The structural diagram of the electronic device in the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0043] Figure 1 The flowchart of the method for controlling the moisture adding amount of loose tobacco rehydration provided by the embodiment of the present application is shown in the figure. Figure 1As shown, the embodiment of the present application provides a method for controlling the moisture adding amount of loose tobacco.

[0044] In step S101, the characteristics of the tobacco leaves are collected, and the characteristics are analyzed according to the characteristics of the tobacco leaves. The tobacco leaf grade corresponding to the tobacco leaves is determined based on the analysis result.

[0045] Specifically, the characteristics of the tobacco leaves can include, but are not limited to, the characteristics in aspects of appearance, color, shape, density, aroma, etc. In the analysis, the PDA (Process Data Acquisition) method or the like can be used to collect, store and process the characteristic data of the tobacco leaves. The characteristics of the tobacco leaves are analyzed, and the tobacco leaf grade corresponding to the characteristics of the tobacco leaves is determined based on the analysis result. Different characteristics can have different grade determination rules. For example, for the appearance characteristics, the appearance characteristics of the tobacco leaves, including color, shape, size and overall appearance, can be observed. Different grades of tobacco leaves can have different appearance characteristics, such as color brightness and leaf integrity. For the aroma characteristics, the aroma characteristics of the tobacco leaves, including the intensity, variety and persistence of the aroma, can be evaluated. Different grades of tobacco leaves can have different aroma characteristics, which reflect the quality of the tobacco leaves to some extent. For the leaf density, the density of the tobacco leaves can be measured. Different grades of tobacco leaves can have different leaf densities, which have certain influence on the combustion performance and taste of the tobacco. For the chemical composition, the chemical composition of the tobacco leaves, such as nicotine content and tar content, can be analyzed. These chemical compositions can also help to determine the grade of the tobacco leaves. After the characteristics of the tobacco leaves are determined, the weight determination rules among the characteristics can be used to calculate the tobacco leaf grade under the characteristics of the tobacco leaves.

[0046] In step S102, the correlation data of different tobacco leaf grades is collected by using the moisture meter, and the correction value of the moisture meter corresponding to different tobacco leaf grades is determined based on the correlation data collection result. The mapping relationship between the tobacco leaf grade and the correction value is established.

[0047] Specifically, different tobacco leaf grade corresponding tobacco leaf samples are prepared, and different grade tobacco leaf samples can also be numbered and classified, facilitating subsequent data collection and analysis. Then the moisture content of each tobacco leaf sample is tested using a moisture meter, and the test results of each sample are recorded, including tobacco grade, test time, moisture content, and other information, and the associated data is qualitatively and quantitatively analyzed. Then the correlation between tobacco characteristics and water content is studied, which can be established through a large number of sample tests and data analysis, and a mathematical model or statistical relationship between the characteristics of different grades of tobacco and the moisture content can be established. Further, the characteristics of the tobacco can be used as variables, and the characteristic data and corresponding moisture content data of different grades of tobacco can be collected for a large amount of data analysis and processing to verify the relationship between the characteristics of the tobacco and the moisture content. Then, based on the relationship between the characteristics of the tobacco and the moisture content, a corresponding correlation algorithm is designed to determine the correction value of the online moisture meter for different grades of tobacco. The correlation algorithm can be calculated based on the weight determination rule, or it can be designed separately, and then a mapping relationship between the tobacco grade and the correction value is established.

[0048] In addition, the water temperature of the correction water of the moisture meter can also be used as a variable for sample testing and data analysis, and the corresponding relationship between the water temperature of the correction water and the correction result is counted, and the corresponding relationship between the water temperature of the correction water and the correction result is determined. The best water temperature corresponding to different tobacco leaf grades, i.e. the best effect of the water temperature during correction, is determined, and then the correction value change curve also includes the corresponding best water temperature.

[0049] Step S103, real-time production information of the loose rehydration line of the strip tobacco is obtained, an arrival time axis of the strip tobacco reaching the conditioning cylinder and an entering time axis of the strip tobacco completely entering the conditioning cylinder are generated, and the arrival time axis and the entering time axis further include the corresponding tobacco leaf grade of the strip tobacco.

[0050] Specifically, when it is detected that the loose conditioning line of the strip tobacco is in normal production activities, the production information of the strip tobacco on the production line at the real time loose conditioning line is obtained through the relevant sensor equipment on the production line, which can include the production grade of the strip tobacco, the production timeline, the time of the strip tobacco reaching the inlet of the conditioning cylinder after being cut by the slicing machine, the time of completely entering the loose conditioning cylinder, and the like. Then, based on the real-time production information, the arrival time axis of the strip tobacco reaching the conditioning cylinder and the entering time axis of the strip tobacco completely entering the conditioning cylinder on the production line can be determined. The time axis of the strip tobacco starting to move and contacting the conditioning cylinder can be represented with the strip tobacco on the production line as the horizontal axis and the time point of contacting the conditioning cylinder as the vertical axis, indicating the corresponding strip tobacco contacting the conditioning cylinder over time. This time is usually used to calculate the production efficiency and process control, and a faster arrival time of the conditioning cylinder can mean a higher production efficiency. The time axis of the strip tobacco completely entering the conditioning cylinder and stopping moving can be represented with the strip tobacco on the production line as the horizontal axis and the time point of completely entering the conditioning cylinder as the vertical axis, indicating the corresponding strip tobacco completely entering the conditioning cylinder over time. This time is usually used to control the operation and adjustment of the conditioning cylinder to ensure that the strip tobacco completely enters the conditioning cylinder, thereby ensuring the normal operation of the downstream process and avoiding impurities or damage. Moreover, based on the above two time axes, the information of the strip tobacco on the corresponding production line can further include the grade information of the strip tobacco.

[0051] In step S104, a tobacco leaf grade time axis is generated based on the arrival time axis, the entering time axis, and the tobacco leaf grade, and a change curve of the correction value is determined in combination with the mapping relationship, and the correction value of the moisture meter at the inlet and outlet of the conditioning cylinder is dynamically adjusted based on the change curve.

[0052] Specifically, based on the arrival time axis, the entering time axis, and the tobacco leaf grade, a corresponding tobacco leaf grade time axis can be generated when the strip tobacco reaches the conditioning cylinder and when the strip tobacco completely enters the conditioning cylinder. Then, in combination with the mapping relationship between the tobacco leaf grade and the correction value, a change curve of the corresponding correction value can be further determined based on the change of the tobacco leaf grade over time on the production line. Moreover, based on the change curve, real-time feedback is sent to the related adjustment system of the moisture meter, and then the water addition amount of the moisture meter at the inlet and outlet of the conditioning cylinder is automatically adjusted in real time through the related adjustment system of the moisture meter.

[0053] In addition, the related adjustment system can be a moisture meter correction value real-time feedback system. After establishing the feedback system, the mapping relationship between the tobacco leaf grade and the correction value is sent to the feedback system, and then the real-time tobacco leaf grade time axis on the production line is sent to the feedback system. The change curve of the correction value is determined in combination with the pre-stored mapping relationship in the system, and the correction signal is continuously corrected based on the change curve and sent to the moisture meter at the inlet and outlet of the conditioning cylinder for real-time dynamic adjustment.

[0054] The embodiment of the present application provides a tobacco loose conditioning water adding amount control method, collects tobacco characteristics, carries out characteristic analysis according to the tobacco characteristics, determines the tobacco grade of corresponding tobacco based on the characteristic analysis result; carries out associated data collection on the tobacco of different tobacco grades through a moisture meter, determines the correction value of the moisture meter corresponding to different tobacco grades based on the associated data collection result, and establishes the mapping relationship between the tobacco grade and the correction value; obtains real-time production information of a tobacco loose conditioning line, generates a time axis of tobacco arriving at a conditioning cylinder and a time axis of tobacco completely entering the conditioning cylinder, and the time axis and the time axis further include the tobacco grade corresponding to the tobacco; generates a tobacco grade time axis based on the time axis of arriving, the time axis of entering and the tobacco grade, determines a correction value change curve in combination with the mapping relationship, and dynamically adjusts the correction value of the moisture meter at the inlet and outlet of the conditioning cylinder based on the change curve. In this way, the water adding amount of the corresponding moisture meter can be corrected for different tobaccos, so that the moisture of the tobacco is better adjusted, and the production quality of the tobacco is improved.

[0055] Figure 2 The tobacco loose conditioning water adding amount control system provided by the embodiment of the present application comprises a collection module S201, a mapping module S202, a time axis module S203 and an adjustment module S204.

[0056] The collection module S201 is used for collecting tobacco characteristics, carrying out characteristic analysis according to the tobacco characteristics, and determining the tobacco grade of corresponding tobacco based on the characteristic analysis result.

[0057] The mapping module S202 is used for carrying out associated data collection on the tobacco of different tobacco grades through a moisture meter, determining the correction value of the moisture meter corresponding to different tobacco grades based on the associated data collection result, and establishing the mapping relationship between the tobacco grade and the correction value.

[0058] The time axis module S203 is used for obtaining real-time production information of a tobacco loose conditioning line, generating a time axis of tobacco arriving at a conditioning cylinder and a time axis of tobacco completely entering the conditioning cylinder, and the time axis and the time axis further include the tobacco grade corresponding to the tobacco.

[0059] The adjustment module S204 is used for generating a tobacco grade time axis based on the time axis of arriving, the time axis of entering and the tobacco grade, determining a correction value change curve in combination with the mapping relationship, and dynamically adjusting the correction value of the moisture meter at the inlet and outlet of the conditioning cylinder based on the change curve.

[0060] In one of the embodiments, the system further comprises:

[0061] The feature module is configured to determine the feature grade corresponding to the tobacco feature according to the feature analysis result, and calculate the tobacco grade corresponding to the tobacco according to a preset weight determination rule. The tobacco feature includes appearance feature, aroma feature, density feature, and chemical composition.

[0062] In one of the embodiments, the system further includes:

[0063] The analysis module is configured to perform sample testing and data analysis with the tobacco feature as a variable, and to determine the corresponding relationship between the tobacco feature and the moisture content.

[0064] The algorithm module is configured to design an association algorithm between the feature grade and the tobacco feature based on the weight determination rule, and to obtain the corresponding relationship between the feature grade and the moisture content in combination with the corresponding relationship between the tobacco feature and the moisture content.

[0065] The correction value module is configured to determine the moisture requirement value corresponding to the tobacco feature, and to determine the correction value of the moisture meter corresponding to different tobacco grades in combination with the corresponding relationship between the feature grade and the moisture content.

[0066] The specific limitations of the tobacco loose rehydration water control system can be seen in the limitations of the tobacco loose rehydration water control method described above, which will not be repeated here. Each module in the above tobacco loose rehydration water control system can be realized by software, hardware, and their combinations in whole or in part. The above modules can be embedded in or independent of the processor in the computer device in hardware form, or stored in the memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to each module.

[0067] Figure 3 An example of an electronic device entity structure diagram is shown as Figure 3As shown, the electronic device can include a processor 301, a memory 302, a communications interface 303, and a communications bus 304, wherein the processor 301, the memory 302, and the communications interface 303 complete mutual communication through the communications bus 304. The processor 301 can call the logical instructions in the memory 302 to execute the following method: collecting tobacco leaf characteristics, and performing feature analysis according to the tobacco leaf characteristics, determining the tobacco leaf grade of the corresponding tobacco leaf based on the feature analysis result; collecting associated data of tobacco leaves of different tobacco leaf grades through a moisture meter, and determining the correction value of the moisture meter corresponding to different tobacco leaf grades based on the result of the associated data collection, establishing a mapping relationship between the tobacco leaf grade and the correction value; obtaining real-time production information of the loose reconditioning line of tobacco strips, generating the arrival time axis of the tobacco strips to the conditioning cylinder and the entering time axis of the tobacco strips completely entering the conditioning cylinder, and the arrival time axis and the entering time axis further include the tobacco leaf grade corresponding to the tobacco strips; generating a tobacco leaf grade time axis based on the arrival time axis, the entering time axis, and the tobacco leaf grade, determining a correction value change curve in combination with the mapping relationship, and dynamically adjusting the correction value of the moisture meter at the inlet and outlet of the conditioning cylinder based on the change curve.

[0068] In addition, the logical instructions in the memory 302 described above can be implemented in the form of a software function unit and sold or used as an independent product, and can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or part of the technical solutions can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various program code storage media.

[0069] In another aspect, the embodiments of the present application also provide a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the transmission method provided by the above-mentioned embodiments, for example, comprising: collecting tobacco leaf features, and performing feature analysis according to the tobacco leaf features, determining the tobacco leaf grade of the corresponding tobacco leaf based on the feature analysis result; collecting associated data of tobacco leaves of different tobacco leaf grades by a moisture meter, and determining the correction value of the moisture meter corresponding to different tobacco leaf grades based on the result of the associated data collection, establishing a mapping relationship between the tobacco leaf grade and the correction value; obtaining real-time production information of the loose rehydration line of the tobacco sheet, generating the arrival time axis of the tobacco sheet to the moisture cylinder and the entering time axis of the tobacco sheet completely entering the moisture cylinder, and the arrival time axis and the entering time axis further include the tobacco leaf grade corresponding to the tobacco sheet; generating the tobacco leaf grade time axis based on the arrival time axis, the entering time axis and the tobacco leaf grade, determining the change curve of the correction value in combination with the mapping relationship, and dynamically adjusting the correction value of the moisture meter at the inlet and outlet of the moisture cylinder based on the change curve.

[0070] The system embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place or can be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiments. Those skilled in the art can understand and implement without creative labor.

[0071] Through the above description of the embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software plus necessary general hardware platforms, and of course can also be realized by hardware. Based on such understanding, the above technical solutions, essentially or in other words, the part that contributes to the prior art can be embodied in the form of a software product. The computer software product can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for controlling the amount of water added to loose tobacco for rehydration, characterized by, The method comprises the following steps: Collecting tobacco leaf characteristics and performing feature analysis based on the tobacco leaf characteristics, and determining the tobacco leaf grade of the corresponding tobacco leaf based on the feature analysis result; Collecting correlation data of different tobacco leaf grades by a moisture meter, and determining the correction value of the moisture meter corresponding to different tobacco leaf grades based on the correlation data collection result, and establishing a mapping relationship between the tobacco leaf grade and the correction value; Obtaining real-time production information of the loose rehydration line of tobacco sheet, generating a time axis of the arrival of tobacco sheet to the moisture cylinder and a time axis of the complete entry of tobacco sheet into the moisture cylinder, and the time axis of the arrival and the time axis of the entry further include the tobacco leaf grade corresponding to the tobacco sheet; Based on the arrival time axis, the entry time axis and the tobacco leaf grade, a tobacco leaf grade time axis is generated, and the change curve of the correction value is determined in combination with the mapping relationship, and the correction value of the moisture meter at the inlet and outlet of the moisture cylinder is dynamically adjusted based on the change curve; The feature analysis based on the tobacco leaf characteristics, and determining the tobacco leaf grade of the corresponding tobacco leaf based on the feature analysis result, comprises: According to the feature analysis result, the feature grade corresponding to the tobacco leaf characteristics is determined, and the tobacco leaf grade corresponding to the tobacco leaf is calculated in combination with the preset weight determination rule, wherein the tobacco leaf characteristics include appearance characteristics, aroma characteristics, density characteristics and chemical composition; The correction value of the moisture meter corresponding to different tobacco leaf grades is determined based on the correlation data collection result, which comprises: Taking the tobacco leaf characteristics as variables to perform sample testing and data analysis, and statistically obtaining the corresponding relationship between the tobacco leaf characteristics and the moisture content, Based on the weight determination rule, an association algorithm between the feature grade and the tobacco leaf characteristics is designed, and the corresponding relationship between the feature grade and the moisture content is obtained in combination with the corresponding relationship between the tobacco leaf characteristics and the moisture content; Based on the tobacco leaf characteristics, the corresponding moisture demand value is determined, and the correction value of the moisture meter corresponding to different tobacco leaf grades is determined in combination with the corresponding relationship between the feature grade and the moisture content.

2. The method for controlling the amount of moisture added to loose tobacco according to claim 1, wherein The method further comprises: Taking the water temperature of the corrected water of the moisture meter as a variable to perform sample testing and data analysis, and statistically obtaining the corresponding relationship between the water temperature of the corrected water and the correction result, and determining the optimal water temperature corresponding to different tobacco leaf grades based on the corresponding relationship between the water temperature of the corrected water and the correction result; The change curve of the correction value further comprises: The optimal water temperature corresponding to the correction value.

3. The method of claim 1, wherein the moisture content of the tobacco is controlled by the amount of water added. The method further comprises: Establishing a moisture meter correction value real-time feedback system, and sending the mapping relationship between the tobacco leaf grade and the correction value to the feedback system; The change curve of the correction value is determined in combination with the mapping relationship, and the correction value of the moisture meter at the inlet and outlet of the moisture cylinder is dynamically adjusted based on the change curve, which comprises: The tobacco leaf grade time axis is sent to the feedback system, the change curve of the correction value is determined in combination with the mapping relationship, and a continuous correction signal is sent to the moisture meter at the inlet and outlet of the moisture cylinder based on the change curve, for real-time dynamic adjustment.

4. A system for controlling the amount of moisture added to loose tobacco, comprising: a tobacco moisture control device; a tobacco moisture sensor; and a controller in communication with the tobacco moisture control device and the tobacco moisture sensor. The system comprises: A collection module for collecting tobacco leaf characteristics and performing feature analysis based on the tobacco leaf characteristics, and determining the tobacco leaf grade of the corresponding tobacco leaf based on the feature analysis result; The mapping module is configured to collect associated data of different tobacco grades by the moisture meter, determine correction values of the moisture meter corresponding to different tobacco grades based on a result of the associated data collection, and establish a mapping relationship between the tobacco grades and the correction values. The timeline module is configured to obtain real-time production information of the loose rehydration line of the strip tobacco, generate an arrival timeline of the strip tobacco reaching the moisture cylinder and an entering timeline of the strip tobacco completely entering the moisture cylinder, and the arrival timeline and the entering timeline further include the tobacco grades corresponding to the strip tobacco. The adjustment module is configured to generate a tobacco grade timeline based on the arrival timeline, the entering timeline, and the tobacco grades, determine a change curve of the correction values in combination with the mapping relationship, and dynamically adjust the correction values of the moisture meters at the inlet and the outlet of the moisture cylinder based on the change curve. The feature module is configured to determine feature grades corresponding to the tobacco features based on a feature analysis result, and calculate the tobacco grades corresponding to the tobacco based on a preset weight determination rule, wherein the tobacco features include appearance features, aroma features, density features, and chemical components. The analysis module is configured to perform sample testing and data analysis with the tobacco features as variables, and count corresponding relationships between the tobacco features and the moisture content. The algorithm module is configured to design an association algorithm between the feature grades and the tobacco features based on the weight determination rule, and obtain corresponding relationships between the feature grades and the moisture content in combination with the corresponding relationships between the tobacco features and the moisture content. The correction value module is configured to determine moisture demand values corresponding to the tobacco features based on the tobacco features, and determine correction values of the moisture meters corresponding to different tobacco grades in combination with the corresponding relationships between the feature grades and the moisture content.

5. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the program to implement the steps of the tobacco loose rehydration water addition amount control method according to any one of claims 1 to 3.

6. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the tobacco loose rehydration water addition amount control method according to any one of claims 1 to 3.

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