Tobacco mellowing control method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention discloses a tobacco leaf mellowing control method and device, electronic equipment and a storage medium, tobacco leaves are placed in a closed bin body provided with an environment regulation and control device for mellowing, and the method comprises the steps that environment parameter values and internal quality index values influencing tobacco leaf mellowing are obtained; the alcoholization state of the tobacco leaves is judged according to the obtained result; and a control strategy corresponding to the alcoholization state judgment result is adopted to control the environment regulation and control device to adjust the environment in the closed bin body. The technical scheme provided by the embodiment of the invention can be suitable for the tobacco alcoholization management scene in the cigarette production and processing link, and can solve the problems of one-sided judgment and inaccurate alcoholization control caused by single-dimension judgment of the alcoholization quality only depending on the effective accumulated temperature in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco processing, and in particular, to a method, device, electronic device, and storage medium for controlling the aging of tobacco leaves. Background Art

[0002] In the tobacco industry, the aging of tobacco leaves is an essential key process for improving the quality of tobacco leaves. After being harvested, the internal components of tobacco leaves, such as sugars, proteins, polyphenols, etc., are in an unstable state, which directly affects the quality characteristics of tobacco leaves, such as aroma, taste, and combustibility. Through the aging process, a series of complex physical and chemical changes occur inside the tobacco leaves, including oxidation, degradation, polymerization, and other reactions. These reactions can effectively reduce irritation and increase the content of aroma substances, significantly improving the quality of tobacco leaves.

[0003] Currently, the commonly used method for controlling the aging of tobacco leaves is to judge whether the tobacco leaves reach the corresponding temperature threshold range based on the detected effective accumulated temperature of the tobacco leaves, so as to determine whether the tobacco leaves meet the quality requirements for aging, and then implement corresponding aging control measures. However, this method has obvious defects. The aging of tobacco leaves is a complex process affected by multiple factors, which are intertwined and influence each other, jointly determining the final aging quality of tobacco leaves. Relying solely on the data of a single dimension of effective accumulated temperature completely ignores other key influencing factors and cannot comprehensively and accurately reflect the interaction relationship among these complex factors. This inevitably leads to the problem that in the actual aging control process, due to the one-sidedness of the judgment basis, the control measures are difficult to accurately match the real aging needs of tobacco leaves, ultimately resulting in inaccurate aging control. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a method, device, electronic device, and storage medium for controlling the aging of tobacco leaves to solve the problems of one-sided judgment and inaccurate aging control caused by determining the aging quality only based on a single dimension of effective accumulated temperature in the prior art.

[0005] In a first aspect, an embodiment of the present invention provides a method for controlling the aging of tobacco leaves. The tobacco leaves are aged in a closed chamber equipped with an environmental control device. The method includes:

[0006] Obtaining the environmental parameter values and internal quality index values that affect the aging of the tobacco leaves;

[0007] Judging the aging state of the tobacco leaves according to the obtained results;

[0008] Adopting a control strategy corresponding to the judgment result of the aging state to control the environmental control device to adjust the environment in the closed chamber.

[0009] Further, obtaining the environmental parameter values that affect the aging of the tobacco leaves includes:

[0010] Calculate the effective accumulated temperature value affecting the aging of the tobacco leaves according to the following formula :

[0011] =

[0012] wherein, represents the reference temperature when the tobacco leaves have no aging, represents the daily average temperature in the sealed bin where the tobacco leaves are located, represents the humidity compensation threshold value of the tobacco leaves, represents the daily average relative humidity in the sealed bin where the tobacco leaves are located, represents the humidity compensation coefficient, represents the temperature correction factor, represents the number of days the tobacco leaves are placed in the sealed bin.

[0013] Furthermore, obtaining the environmental parameter values affecting the aging of the tobacco leaves further includes:

[0014] According to the variety to which the tobacco leaves belong, query the corresponding relationship between multiple tobacco leaf varieties, the reference temperature when there is no aging, and the humidity compensation coefficient created in advance, and obtain the reference temperature and humidity compensation coefficient when the tobacco leaves have no aging.

[0015] Furthermore, obtaining the environmental parameter values affecting the aging of the tobacco leaves further includes:

[0016] Determine the temperature correction factor in the following manner:

[0017]

[0018] Furthermore, the environmental parameter values include the effective accumulated temperature value; the internal quality index values include starch content, protein degradation rate, Bacillus concentration, and Penicillium concentration;

[0019] Judging the aging state of the tobacco leaves according to the obtained results includes:

[0020] If the following conditions are all met, it is determined that the tobacco leaves are in the standard aging state, otherwise it is in the abnormal aging state:

[0021] The effective accumulated temperature value is within the set accumulated temperature threshold range;

[0022] The starch content is not higher than the set upper content limit value;

[0023] The protein degradation rate is not lower than the set lower degradation rate limit value;

[0024] The Bacillus concentration is not lower than the set first concentration lower limit value;

[0025] The concentration of Penicillium is not higher than the set upper limit of the second concentration value.

[0026] Further, a control strategy corresponding to the determination result of the aging state is adopted to control the environment control device to adjust the environment in the closed bin, including:

[0027] When the determination result is the standard aging state, control the environment control device to keep the environment in the closed bin unchanged and generate an aging completion signal;

[0028] When the determination result is an abnormal aging state, control the environment control device to dynamically adjust the environment in the closed bin according to the unqualified conditions.

[0029] In a second aspect, an embodiment of the present invention provides a tobacco leaf aging control device. The tobacco leaf is aged in a closed bin equipped with an environment control device. The device includes:

[0030] An acquisition unit for acquiring the environmental parameter values and internal quality index values that affect the aging of the tobacco leaf;

[0031] A determination unit for determining the aging state of the tobacco leaf according to the acquisition result;

[0032] A regulation unit for adopting a control strategy corresponding to the determination result of the aging state to control the environment control device to adjust the environment in the closed bin.

[0033] Further, the acquisition unit is specifically used for:

[0034] Calculate the effective accumulated temperature value that affects the aging of the tobacco leaf according to the following formula :

[0035] =

[0036] where represents the reference temperature when the tobacco leaf has no aging, represents the daily average temperature in the closed bin where the tobacco leaf is located, represents the humidity compensation threshold of the tobacco leaf, represents the daily average relative humidity in the closed bin where the tobacco leaf is located, represents the humidity compensation coefficient, represents the temperature correction factor, represents the number of days the tobacco leaf is placed in the closed bin.

[0037] Further, the acquisition unit is further used for:

[0038] According to the variety to which the tobacco leaves belong, query the corresponding relationship between multiple pre-created tobacco leaf varieties, the reference temperature and the humidity compensation coefficient without aging, so as to obtain the reference temperature and the humidity compensation coefficient of the tobacco leaves without aging.

[0039] Further, the obtaining unit is further configured to:

[0040] Determine the temperature correction factor in the following manner:

[0041]

[0042] Further, the environmental parameter value includes the effective accumulated temperature value; the internal quality index value includes the starch content, the protein degradation rate, the Bacillus concentration, and the Penicillium concentration;

[0043] The determination unit is specifically configured to:

[0044] If the following conditions are all met, it is determined that the tobacco leaves are in the standard aging state, otherwise they are in the abnormal aging state:

[0045] The effective accumulated temperature value is within the set accumulated temperature threshold range;

[0046] The starch content is not higher than the set content upper limit value;

[0047] The protein degradation rate is not lower than the set degradation rate lower limit value;

[0048] The Bacillus concentration is not lower than the set first concentration lower limit value;

[0049] The Penicillium concentration is not higher than the set second concentration upper limit value.

[0050] Further, the regulation unit is specifically configured to:

[0051] When the determination result is the standard aging state, control the environmental regulation device to maintain the environment in the sealed chamber unchanged and generate an aging completion signal;

[0052] When the determination result is the abnormal aging state, control the environmental regulation device to dynamically adjust the environment in the sealed chamber according to the unqualified conditions.

[0053] In a third aspect, an embodiment of the present invention provides an electronic device, which includes: a housing, a processor, a memory, a circuit board, and a power supply circuit. Among them, the circuit board is arranged inside the space surrounded by the housing, and the processor and the memory are arranged on the circuit board; the power supply circuit is used to supply power to each circuit or device of the above-mentioned electronic device; the memory is used to store executable program codes; the processor runs a program corresponding to the executable program codes by reading the executable program codes stored in the memory, and is used to execute the tobacco leaf aging control method described in the foregoing first aspect.

[0054] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium storing one or more programs, which can be executed by one or more central processing units to implement the tobacco leaf aging control method described in the foregoing first aspect.

[0055] The technical solution provided by the embodiment of the present invention obtains multi-dimensional data from two perspectives of environmental parameter values and internal quality index values, comprehensively considers various influencing factors, and solves the problem of one-sided judgment basis; determines the tobacco leaf aging state based on multi-dimensional data, more accurately reflects the interaction relationship between complex factors, and avoids deviations in the judgment of the aging state; and according to the determination result of the aging state, adopts corresponding control strategies to adjust the environment in the sealed bin, so that the control measures accurately match the actual aging needs of the tobacco leaves, effectively solving the problem of inaccurate aging control in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0057] Figure 1 It is a flowchart of a tobacco leaf aging control method provided in Embodiment 1 of the present invention;

[0058] Figure 2 It is a flowchart of a tobacco leaf aging control method provided in Embodiment 2 of the present invention;

[0059] Figure 3 It is a schematic structural diagram of a tobacco leaf aging control device provided in Embodiment 3 of the present invention;

[0060] Figure 4 It is a schematic structural diagram of an electronic device provided in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0061] The following will describe the embodiments of the present invention in detail with reference to the drawings.

[0062] It should be clear that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0063] Embodiment 1

[0064] This embodiment provides a method for controlling tobacco leaf aging, which can be executed by a corresponding tobacco leaf aging control device and is applicable to the scenario of tobacco leaf aging management in the cigarette production and processing link. Refer to Figure 1 , and the method includes the following steps 101-103.

[0065] Step 101: Obtain the environmental parameter values and internal quality index values that affect tobacco leaf aging.

[0066] In the embodiment of the present invention, the tobacco leaves are pre-placed in a sealed chamber equipped with an environmental control device for aging. The sealed chamber refers to a closed space that can isolate the influence of the external environment. The environmental control device refers to a device used to control the environmental conditions (such as temperature, relative humidity, gas composition, etc.) in the sealed chamber.

[0067] During the aging process of tobacco leaves, the environmental factors that affect tobacco leaf aging mainly include two core variables: temperature and relative humidity. Temperature regulates the transformation of tobacco leaf chemical components by affecting enzyme activity and microbial metabolism rate; this parameter of relative humidity not only determines the moisture content of tobacco leaves, but also affects the Maillard reaction process and the intensity of the browning reaction through water activity. The synergistic effect of the two forms a dynamic control system, which jointly determines the quality transformation efficiency of tobacco leaf aging. In addition, the internal quality of tobacco leaves is also the material basis for the tobacco leaf aging reaction, and its key index system can include: chemical composition index and biological activity index.

[0068] Exemplarily, the environmental parameter values that affect tobacco leaf aging can include the dynamic cumulative parameter values (such as accumulated temperature value and relative humidity exposure, or temperature-humidity coupling index) of the temperature and relative humidity in the sealed chamber based on the time dimension, and the internal quality index values can include the starch content, protein degradation rate, Bacillus concentration, and Penicillium concentration of tobacco leaves. The change in starch content reflects the energy metabolism process in tobacco leaves, the protein degradation rate reflects the degree of protein transformation, and the microbial concentration affects the fermentation process of tobacco leaves. These indexes are closely related to the aging state. For example, too high starch content may mean insufficient aging and an abnormal aging state; while a specific microbial concentration within a certain range may help to achieve the standard aging state.

[0069] In specific implementation, the sealed chamber can adopt a layered three-dimensional chamber structure, with a multi-point temperature and humidity sensor matrix and a microbial detection sensor built in. The temperature and relative humidity in the sealed chamber are collected through the multi-point temperature and humidity sensor matrix, and the accumulated temperature value and relative humidity exposure, or temperature-humidity coupling index, that affect tobacco leaf aging are calculated; through the microbial detection sensor, the Bacillus concentration and Penicillium concentration of tobacco leaves can be detected. Near-infrared (NIR) spectroscopy technology can be used to detect the starch content and protein degradation rate of tobacco leaves.

[0070] It should be noted that to accurately monitor the aging state of tobacco leaves, it is necessary to continuously collect the environmental parameter values and internal quality index values that affect the aging of tobacco leaves. Specifically, the acquisition cycle of these two types of numerical values can be set to once every 24 hours. Such a setting can not only ensure the continuity of the obtained numerical values and fully reflect the dynamic changes in the tobacco leaf aging process, but also avoid unnecessary consumption of human, material and time costs caused by overly frequent numerical value collection. At the same time, it also prevents data loss or missing key change nodes in the aging process due to too long an acquisition interval, thereby providing stable and reliable data support for accurately determining the aging state of tobacco leaves based on these data and implementing effective control measures in the subsequent stage.

[0071] Step 102: Determine the aging state of the tobacco leaves according to the acquisition results.

[0072] In this step, the aging state can be divided into a standard aging state and an abnormal aging state. Optionally, the abnormal aging state can be further specifically divided into an immature state, a local over-aging state, and a biological contamination state. Those skilled in the art can establish the corresponding relationship between the environmental parameter values and internal quality index values of tobacco leaves and the aging state of tobacco leaves in advance through a large number of experiments, data collection and analysis, and determine the aging state of tobacco leaves under the environmental parameter values and internal quality index values that affect the aging of tobacco leaves obtained in real time subsequently according to this relationship.

[0073] Preferably, the environmental parameter values that affect the aging of tobacco leaves include the effective accumulated temperature value; the internal quality index values that affect the aging of tobacco leaves include the starch content, the protein degradation rate, the concentration of Bacillus and the concentration of Penicillium. Among them, the effective accumulated temperature value can be the sum of the average daily temperatures in the closed bin during the tobacco leaf aging process under the set relative humidity conditions.

[0074] Correspondingly, step 102 specifically includes:

[0075] If all the following conditions are met, it is determined that the tobacco leaves are in the standard aging state, otherwise it is in the abnormal aging state:

[0076] The effective accumulated temperature value is within the set accumulated temperature threshold range;

[0077] The starch content is not higher than the set content upper limit value;

[0078] The protein degradation rate is not lower than the set degradation rate lower limit value;

[0079] The concentration of Bacillus is not lower than the set first concentration lower limit value;

[0080] The concentration of Penicillium is not higher than the set second concentration upper limit value.

[0081] Among them, the accumulated temperature threshold range, the upper limit value of the content, the lower limit value of the degradation rate, the lower limit value of the first concentration, and the upper limit value of the second concentration can be set by those skilled in the art according to experience.

[0082] This determination scheme realizes the leap from empirical control to precise intelligence in tobacco leaf aging through multi-dimensional coupled decision-making. At the level of accumulated temperature, the effective accumulated temperature value is judged according to the set accumulated temperature threshold range to ensure that the tobacco leaf aging process is within the appropriate temperature accumulation range. In terms of chemical components, the starch content and protein degradation rate are controlled, and the settings of not higher than the upper limit value and not lower than the lower limit value precisely match the ideal chemical conversion degree of tobacco leaf aging. In the dimension of the microbial community, the balance of the microbial environment is maintained by limiting the concentrations of Bacillus and Penicillium. The standards for each dimension are clear and definite, providing a precise and easy-to-implement determination basis for actual operation, and greatly improving the accuracy and reliability of judging the aging state of tobacco leaves.

[0083] Certainly, the obtained result of step 101 can also be input into a pre-trained aging degree prediction model to predict the aging degree of the tobacco leaf; according to the predicted aging degree, the aging state of the tobacco leaf is determined. For example, if the aging degree prediction model is a classification model, the output can be the probabilities belonging to various aging states. Then, according to the prediction result of the aging degree prediction model, the aging state of the tobacco leaf is determined according to the set rules. Specifically, the category with the highest probability output by the aging degree prediction model can be used as the aging state of the tobacco leaf. For example, if the probability that the aging degree prediction model predicts that the tobacco leaf belongs to the standard aging state is 0.8 and the probability of the abnormal aging state is 0.2, then the aging state of the tobacco leaf is determined to be the standard aging state.

[0084] Certainly, the result obtained in step 101 can also be input into a pre-trained aging degree prediction model to predict the aging degree of the tobacco leaf. Based on the predicted aging degree, the aging state of the tobacco leaf is further determined. Taking the classification model as an example, the output form of this aging degree prediction model is the probabilities belonging to various aging states. At this time, according to the pre-set rules, the aging state of the tobacco leaf can be determined according to the model prediction result. Generally speaking, the category with the highest output probability of the model can be determined as the aging state of the tobacco leaf. For example, if the probability that the aging degree prediction model predicts that the tobacco leaf belongs to the standard aging state is 0.8 and the probability of belonging to the abnormal aging state is 0.2, then the aging state of the tobacco leaf can be determined to be the standard aging state.

[0085] Step 103: Adopt a control strategy corresponding to the aging state determination result to control the environmental regulation device to adjust the environment in the sealed chamber.

[0086] In this embodiment, the environmental control device includes temperature adjustment equipment (such as air conditioners, heaters), humidity adjustment equipment (such as humidifiers, dehumidifiers), and gas composition adjustment equipment (such as ventilators, gas sensors, and related control valves, etc.). These devices can be connected through a control center (such as a PLC programmable logic controller, an industrial computer control system), and data transmission is achieved between the devices and the control center by means of communication cables (such as RS485 bus, Ethernet, etc.), so as to ensure that the control center can obtain the operation status information of the devices in real time and accurately send control instructions to the devices. When it is determined that the tobacco leaves are in the standard aging state, the control strategy is to maintain the current operating parameters of the environmental control device, aiming to maintain the environmental stability in the current sealed bin, and at the same time generate an aging completion signal. If it is determined that the tobacco leaves are in an abnormal aging state, the environmental control device can be controlled according to the specific non-compliance conditions to dynamically adjust the environment in the sealed bin to promote the transformation of the tobacco leaves to the standard aging state. For the specific dynamic adjustment plan, please refer to the following description.

[0087] 1. The effective accumulated temperature does not meet the standard

[0088] (1) The effective accumulated temperature value is lower than the lower limit of the set accumulated temperature threshold range

[0089] Temperature adjustment: If the effective accumulated temperature value is lower than the lower limit of the set accumulated temperature threshold range, it indicates that the current temperature conditions are not conducive to the tobacco leaf aging process. For the temperature adjustment equipment using air conditioners and heaters, the control center (such as a PLC programmable logic controller) can send instructions to the heater to increase its power, so that the temperature in the sealed bin rises. For example, if the average temperature corresponding to the current effective accumulated temperature value is 3°C lower than the appropriate lower limit, the heater power can be gradually increased to a level that can raise the temperature by 0.5 - 1°C per hour until the effective accumulated temperature value reaches the threshold range. At the same time, the temperature change is monitored in real time through the temperature sensor installed in the bin and fed back to the control center for precise control.

[0090] Environmental monitoring and adjustment frequency: During the process of raising the temperature, it is necessary to closely monitor the change of the effective accumulated temperature. Since the effective accumulated temperature value is a quantity that accumulates over time, the effective accumulated temperature value needs to be calculated in real time according to the temperature change. For example, the temperature data is collected every 15 minutes, and the cumulative value is updated according to the effective accumulated temperature value calculation formula. When the effective accumulated temperature value is close to the lower limit of the threshold range, the heater power is appropriately reduced to prevent the effective accumulated temperature value from exceeding the reasonable range due to too high temperature.

[0091] (2) The effective accumulated temperature value is higher than the upper limit of the set accumulated temperature threshold range

[0092] Temperature regulation: When the effective accumulated temperature value is higher than the upper limit of the set accumulated temperature threshold range, the air-conditioning refrigeration system needs to be started to lower the temperature. The control center sends an instruction to the air conditioner to adjust the refrigeration power to lower the temperature in the sealed bin. For example, if the average temperature corresponding to the current effective accumulated temperature value is 5°C higher than the suitable upper limit, the air-conditioning refrigeration power can be adjusted to a gear that can lower the temperature by 1 - 1.5°C per hour. Similarly, the temperature sensor is used to real-time feedback temperature data to ensure that the temperature drops steadily to the suitable range, and then the effective accumulated temperature value returns to the normal range.

[0093] Prevent sudden temperature changes: During the cooling process, attention should be paid to avoiding the adverse effects of sudden temperature changes on the tobacco leaves. The step-by-step cooling method can be adopted. After reducing a certain temperature, keep it stable for a period of time, observe the state of the tobacco leaves and the change of the effective accumulated temperature value to ensure that the tobacco leaves adjust the aging process at a suitable temperature change rate.

[0094] 2. The starch content does not meet the standard (the starch content is higher than the set upper limit value)

[0095] Humidity regulation: Higher humidity usually helps to promote the enzyme activity in tobacco leaves and accelerate starch decomposition. If the starch content is higher than the set upper limit value, the humidifier can be turned on by the control center to increase the humidity in the sealed bin. For example, set the humidity in the range of relative humidity 65% - 70% (the specific value needs to be adjusted according to the tobacco leaf variety and actual situation). Through the real-time humidity data feedback by the humidity sensor, adjust the water spraying amount and working time of the humidifier to keep the humidity stable in this range. As the humidity increases, the amylase activity in the tobacco leaves increases, promoting starch decomposition and reducing the starch content.

[0096] Ventilation and gas regulation assistance: Appropriate ventilation can take away the small molecular substances generated by decomposition and promote the forward progress of the starch decomposition reaction. The control center can start the ventilator and carry out ventilation operations according to a certain ventilation frequency and duration. For example, ventilate for 15 minutes every 2 hours, and at the same time use the gas sensor to monitor the gas composition in the bin to ensure that the gas components such as oxygen content and carbon dioxide content are in the suitable range during the ventilation process, creating good environmental conditions for starch decomposition.

[0097] 3. The protein degradation rate does not meet the standard (the protein degradation rate is lower than the set lower limit value)

[0098] Temperature and humidity coordinated regulation: Appropriate temperature and humidity conditions help improve the activity of protease and promote protein degradation. If the protein degradation rate is lower than the set lower limit of the degradation rate, the temperature and humidity can be appropriately increased. For example, raise the temperature by 2 - 3°C higher than the current temperature, and at the same time increase the humidity to 60% - 65% relative humidity (the specific value needs to be determined in combination with the actual situation). The control center sends instructions to the heater and humidifier respectively to adjust the temperature and humidity to the target values, and uses temperature sensors and humidity sensors for real-time monitoring and feedback to ensure that the temperature and humidity are stable within the appropriate range.

[0099] Microbial regulation: Certain microorganisms such as Bacillus spp. can secrete protease in a suitable environment to promote protein degradation. If the concentration of Bacillus spp. is higher than the set first concentration lower limit, but the protein degradation rate is still not ideal, an appropriate amount of Bacillus spp. preparation can be considered for supplementation. At the same time, adjust the gas composition to ensure sufficient oxygen supply to promote the growth and metabolic activities of Bacillus spp., improve its ability to secrete protease, and thus increase the protein degradation rate.

[0100] 4. The concentration of Bacillus spp. does not meet the standard (the concentration of Bacillus spp. is lower than the set first concentration lower limit)

[0101] Environmental optimization to promote growth: Bacillus spp. is suitable to grow in a warm, humid and aerobic environment. The control center can appropriately increase the temperature in the closed bin to the optimal temperature range for the growth of Bacillus spp. (generally 30 - 37°C), and at the same time increase the humidity to 60% - 70% relative humidity. Adjust the temperature and humidity by regulating the heater and humidifier, and use sensors for real-time monitoring. In addition, ensure good ventilation and maintain the oxygen content in the bin at about 20% - 21% to create favorable conditions for the growth and reproduction of Bacillus spp.

[0102] Supplementation of Bacillus spp.: If the concentration of Bacillus spp. still cannot reach the set first concentration lower limit through environmental optimization, consideration can be given to supplementing Bacillus spp. preparation into the closed bin. Select a suitable Bacillus spp. strain and uniformly add it to the tobacco leaves or the bin environment in a certain proportion and manner. After adding, continuously monitor the change in the concentration of Bacillus spp., and adjust the environmental parameters in a timely manner according to its growth situation to promote the colonization and reproduction of Bacillus spp. in the bin.

[0103] 5. The concentration of Penicillium spp. does not meet the standard (the concentration of Penicillium spp. is higher than the set second concentration upper limit)

[0104] Humidity adjustment: Penicillium is prone to grow in a high-humidity environment. Reducing humidity can effectively inhibit its growth. The control center activates the dehumidifier to lower the humidity in the sealed bin. The humidity is controlled below 50% - 55% relative humidity (the specific value is determined according to the actual situation). The humidity sensor monitors and feeds back the humidity data in real time, and adjusts the working power and time of the dehumidifier to ensure that the humidity is maintained at a low level, thereby inhibiting the growth and reproduction of Penicillium.

[0105] Ventilation and disinfection: Strengthen ventilation to discharge the air that may carry Penicillium spores and introduce fresh air at the same time. The control center adjusts the operating frequency and duration of the ventilator, such as ventilating for 20 minutes every 1 hour. In addition, the sealed bin can be regularly disinfected with ultraviolet disinfection lamps or other suitable disinfectants to reduce the number of Penicillium spores and lower their concentration in the bin, ensuring that the aging environment of the tobacco leaves is not overly affected by Penicillium.

[0106] Specifically, in the scenario where multiple conditions do not meet the standards, a warning can be directly output, or one of the following two processing methods can be used for intelligent adjustment:

[0107] Priority classification processing: The processing is carried out in sequence according to the priority of the unqualified conditions from high to low; First, based on the unqualified condition with the highest priority, the environmental control device is controlled to dynamically adjust the environment in the sealed bin until the unqualified condition meets the standard; Subsequently, based on the unqualified condition with the next lower priority, the environmental control device is again controlled to dynamically adjust the environment in the sealed bin until this unqualified condition also meets the standard, and so on; Usually, the priority order of the unqualified conditions is specifically: Penicillium concentration not meeting the standard > Bacillus concentration not meeting the standard > Starch content not meeting the standard > Protein degradation rate not meeting the standard > Effective accumulated temperature value not meeting the standard;

[0108] Step-by-step regulation processing: The entire regulation process is divided into different stages according to time; For example, in the first stage, the problems that are most urgent and critical to the quality of the tobacco leaves are preferentially processed. If the Penicillium concentration seriously exceeds the standard, the dehumidifier is used to reduce the humidity in this stage, and at the same time, the ozone generator is turned on for sterilization and other operations; In the second stage, other relatively important problems are addressed, such as adjusting the temperature and humidity in the sealed bin through the environmental control device to promote reactions such as starch decomposition or protein degradation.

[0109] Embodiment 2

[0110] On the basis of the above embodiment, this embodiment further optimizes the acquisition of the effective accumulated temperature value in the step of "acquiring the environmental parameter values affecting the aging of tobacco leaves". The tobacco leaves are pre-aged in a sealed bin equipped with an environmental control device. Refer to Figure 2 , a method for controlling the aging of tobacco leaves, including the following steps 201-204.

[0111] Step 201: Obtain the environmental parameter values affecting the aging of tobacco leaves, including: Calculate the effective accumulated temperature value affecting the aging of tobacco leaves according to the formula

[0112] = . .

[0113] Among them, represents the reference temperature when there is no aging of tobacco leaves, represents the daily average temperature in the airtight bin where the tobacco leaves are located, represents the humidity compensation threshold of the tobacco leaves, represents the daily average relative humidity in the airtight bin where the tobacco leaves are located, represents the humidity compensation coefficient, represents the temperature correction factor, represents the number of days the tobacco leaves are placed in the airtight bin.

[0114] Specifically, reflects the driving intensity of daily temperature on the aging reaction. When , the temperature makes a positive contribution to the biochemical reaction. can be set by those skilled in the art according to the biological characteristics of the tobacco leaf variety (such as for ordinary flue-cured tobacco =15 °C). When the temperature is lower than this value, it is regarded as an ineffective aging temperature and does not participate in the calculation of the effective accumulated temperature value (that is, when , =0).

[0115] Relative humidity refers to the percentage of the actual water vapor partial pressure in the air in the airtight bin where the tobacco leaves are located to the saturated water vapor partial pressure at the same temperature, which can regulate the moisture content of the tobacco leaves and affect the enzyme activity and the microbial metabolism rate. is the lowest relative humidity to initiate the humidity compensation effect (unit: % ). Typically, =50% (when <50%, the humidity compensation term fails, that is, ), to avoid negative interference of the low-humidity environment ( <50%) on the aging and ensure the effectiveness of humidity regulation.

[0116] In addition, and are both extended parameters. Among them, : Quantify the enhancement effect of humidity on the accumulated temperature. Typically, the value range is 0.012 - 0.020. For example, =0.015 means for every 1% increase, the accumulated temperature efficiency increases by 1.5%. : The dynamic adjustment of the negative impact of high temperature can be determined as follows:

[0117]

[0118] As a preferred implementation, according to the variety to which the tobacco leaves belong, query the corresponding relationship between multiple pre-created tobacco leaf varieties, the reference temperature at the time of non-aging, and the humidity compensation coefficient, to obtain the reference temperature and humidity compensation coefficient of the tobacco leaves at the time of non-aging. The core of this method lies in establishing a variety-specific parameter library and achieving precise aging control through differential regulation.

[0119] Step 202: Obtain the internal quality index values affecting the aging of tobacco leaves.

[0120] Step 203: Determine the aging state of the tobacco leaves according to the obtained environmental parameter values and internal quality index values.

[0121] Step 204: Adopt a control strategy corresponding to the aging state determination result to control the environmental regulation device to adjust the environment in the sealed chamber.

[0122] In the prior art, when calculating the effective accumulated temperature value, there is a lack of a cooperative mechanism of humidity on the accumulated temperature, and relying solely on temperature calculation is one-sided. In this embodiment, the calculation formula of the effective accumulated temperature is driven by temperature and humidity gain The product of realizes:

[0123] Two-factor cooperative effect: Temperature provides the basic reaction driving force, and humidity amplifies the enzymatic reaction efficiency;

[0124] Nonlinear compensation mechanism: Humidity only produces positive compensation when it exceeds to avoid error accumulation under over-drying conditions;

[0125] Dynamic correction ability: Through Factor to avoid high-temperature damage (such as protein denaturation) and improve the biological rationality of the effective accumulated temperature value calculation.

[0126] On the basis of the above solution, it is also possible to carry out separate chamber aging and control for tobacco leaves in different parts, and according to the unique requirements of tobacco leaves in each part, provide the most suitable temperature and humidity environment, thereby significantly improving the aging effect and product quality.

[0127] Embodiment III

[0128] This embodiment provides a tobacco leaf aging control device, which is implemented by software and / or hardware and is used to execute the tobacco leaf aging control method described in the embodiments of the present invention. The tobacco leaves are aged in a sealed chamber equipped with an environmental regulation device. Refer to Figure 3 and this device specifically includes the following units:

[0129] An acquisition unit 301, configured to acquire the environmental parameter values and internal quality index values that affect the aging of the tobacco leaves;

[0130] A determination unit 302, configured to determine the aging state of the tobacco leaves according to the acquisition result;

[0131] A regulation unit 303, configured to adopt a control strategy corresponding to the aging state determination result to control the environmental regulation device to adjust the environment in the sealed chamber.

[0132] Exemplarily, the acquisition unit 301 is specifically configured to calculate the effective accumulated temperature value that affects the aging of the tobacco leaves according to the following formula :

[0133] =

[0134] Wherein, represents the reference temperature when the tobacco leaves have no aging, represents the daily average temperature in the sealed chamber where the tobacco leaves are located, represents the humidity compensation threshold of the tobacco leaves, represents the daily average relative humidity in the sealed chamber where the tobacco leaves are located, represents the humidity compensation coefficient, represents the temperature correction factor, represents the number of days the tobacco leaves are placed in the sealed chamber.

[0135] Further, the acquisition unit 301 is further configured to: query the corresponding relationship between multiple tobacco leaf varieties, the reference temperature when there is no aging, and the humidity compensation coefficient created in advance according to the variety of the tobacco leaves, and obtain the reference temperature and humidity compensation coefficient when the tobacco leaves have no aging.

[0136] Further, the acquisition unit 301 is further configured to:

[0137] determine the temperature correction factor in the following manner:

[0138]

[0139] Preferably, the environmental parameter value includes an effective accumulated temperature value; the internal quality index value includes starch content, protein degradation rate, bacillus concentration, and penicillium concentration;

[0140] The determination unit 302 is specifically configured to determine that the tobacco leaves are in a standard aging state if the following conditions are all met, otherwise they are in an abnormal aging state:

[0141] The effective accumulated temperature value is within the set accumulated temperature threshold range;

[0142] The starch content is not higher than the set upper limit value;

[0143] The protein degradation rate is not lower than the set lower limit value of the degradation rate;

[0144] The concentration of Bacillus is not lower than the set first lower limit value of the concentration;

[0145] The concentration of Penicillium is not higher than the set second upper limit value of the concentration.

[0146] Exemplarily, the regulation unit 303 is specifically configured to: when the determination result is the standard aging state, control the environment regulation device to maintain the environment in the closed chamber unchanged and generate an aging completion signal; when the determination result is the abnormal aging state, control the environment regulation device to dynamically adjust the environment in the closed chamber according to the non-compliance conditions.

[0147] The tobacco leaf aging control device provided in this embodiment belongs to the same inventive concept as the foregoing method embodiment. For technical details not described in this embodiment, reference can be made to the relevant descriptions in the foregoing method embodiment, which will not be elaborated here.

[0148] Figure 4 It is a schematic structural diagram of an embodiment of an electronic device of the present invention, which can implement the processes of Embodiment 1 and Embodiment 2 of the present invention. As Figure 4 shown, the above-mentioned electronic device may include: a housing 41, a processor 42, a memory 43, a circuit board 44, and a power supply circuit 45. Among them, the circuit board 44 is arranged inside the space surrounded by the housing 41, and the processor 42 and the memory 43 are arranged on the circuit board 44; the power supply circuit 45 is used to supply power to each circuit or device of the above-mentioned electronic device; the memory 43 is used to store executable program codes; the processor 42 runs a program corresponding to the executable program code by reading the executable program codes stored in the memory 43, and is used to execute the tobacco leaf aging control method described in any of the foregoing embodiments.

[0149] For the specific execution process of the above steps by the processor 42 and the steps further executed by the processor 42 by running the executable program code, reference can be made to the description of the method embodiment of the present invention, which will not be elaborated here.

[0150] The electronic device may be an electronic device with data processing functions in various forms. For example, a server providing computing services has a structure similar to a general computer architecture. However, due to the need to provide highly reliable services, it has higher requirements in terms of processing power, stability, reliability, security, scalability, manageability, etc.

[0151] Furthermore, an embodiment of the present invention also provides a computer-readable storage medium storing one or more programs, which can be executed by one or more central processing units to implement the tobacco leaf aging control method described in the foregoing embodiments.

[0152] It should be noted that, in this document, relational terms such as first and second are only used to distinguish

[0153] one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including"

[0154] or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0155] The term "and / or" in the embodiments of the present invention describes the association relationship of associated objects and indicates that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0156] Each embodiment in this specification is described in a related manner. The same or similar parts among the embodiments can be referred to each other, and the differences between each embodiment and other embodiments are emphasized.

[0157] In particular, for the device embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiments.

[0158] For the convenience of description, the above device is described by dividing it into various units / modules according to functions. Of course, when implementing the present invention, the functions of the units / modules can be realized in the same or multiple software and / or hardware.

[0159] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), etc.

[0160] As described above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A tobacco leaf aging control method, characterized in that: The tobacco leaves are placed in a closed chamber equipped with an environmental control device for aging, and the method comprises: Obtaining environmental parameter values ​​and internal quality index values ​​that affect the aging of the tobacco leaves; Determining the aging state of the tobacco leaves according to the obtained results; A control strategy corresponding to the alcoholization state determination result is adopted to control the environmental control device to adjust the environment inside the closed warehouse.

2. The method according to claim 1, characterized in that Obtaining environmental parameter values ​​that affect the tobacco leaf aging, including: According to the following formula, the effective accumulated temperature value affecting the alcoholization of the tobacco leaves is calculated: : = in, represents the reference temperature of the tobacco leaves when they are not alcoholized, Indicates the daily average temperature in the closed warehouse where the tobacco leaves are located, represents the humidity compensation threshold of the tobacco leaf, Indicates the daily average relative humidity in the closed warehouse where the tobacco leaves are located, represents the humidity compensation coefficient, represents the temperature correction factor, Indicates the number of days the tobacco leaves are placed in the closed warehouse.

3. The method according to claim 2, characterized in that Obtaining the environmental parameter value that affects the tobacco leaf aging also includes: According to the variety of the tobacco leaves, the correspondence between the multiple pre-created tobacco leaf varieties, the reference temperature when not alcoholized and the humidity compensation coefficient is queried to obtain the reference temperature and humidity compensation coefficient of the tobacco leaves when not alcoholized.

4. The method according to claim 2, characterized in that: Obtaining the environmental parameter value that affects the tobacco leaf aging also includes: The temperature correction factor is determined as follows:

5. The method according to any one of claims 2 to 4, characterized in that: The environmental parameter values ​​include effective accumulated temperature values; the internal quality index values ​​include starch content, protein degradation rate, Bacillus concentration and Penicillium concentration; Determining the aging state of the tobacco leaf according to the obtained result includes: If the following conditions are met, the tobacco leaf is judged to be in a standard alcoholization state, otherwise it is in an abnormal alcoholization state: The effective accumulated temperature value is within the set accumulated temperature threshold range; The starch content is not higher than the set upper limit; The protein degradation rate is not lower than the set degradation rate lower limit; The concentration of Bacillus is not lower than the set first concentration lower limit; The concentration of Penicillium is not higher than the set second concentration upper limit value.

6. The method according to claim 5, characterized in that The control strategy corresponding to the alcoholization state determination result is adopted to control the environment control device to adjust the environment inside the closed warehouse, including: When the determination result is a standard alcoholization state, the environment control device is controlled to maintain the environment in the closed chamber unchanged, and an alcoholization completion signal is generated; When the determination result is an abnormal alcoholization state, the environment control device is controlled to dynamically adjust the environment in the closed warehouse according to the non-standard conditions.

7. A tobacco aging control device, characterized in that: The tobacco leaves are placed in a closed chamber equipped with an environmental control device for aging, the device comprising: An acquisition unit, used for acquiring environmental parameter values ​​and internal quality index values ​​that affect the aging of the tobacco leaves; A determination unit, used for determining the aging state of the tobacco leaf according to the obtained result; The control unit is used to control the environment control device to adjust the environment inside the closed warehouse by adopting a control strategy corresponding to the alcoholization state determination result.

8. The device according to claim 7, characterized in that The acquisition unit is specifically used for: According to the following formula, the effective accumulated temperature value affecting the alcoholization of the tobacco leaves is calculated: : = in, represents the reference temperature of the tobacco leaves when they are not alcoholized, Indicates the daily average temperature in the closed warehouse where the tobacco leaves are located, represents the humidity compensation threshold of the tobacco leaf, Indicates the daily average relative humidity in the closed warehouse where the tobacco leaves are located, represents the humidity compensation coefficient, represents the temperature correction factor, Indicates the number of days the tobacco leaves are placed in the closed warehouse.

9. The device according to claim 8, characterized in that The acquisition unit is further used for: According to the variety of the tobacco leaves, the correspondence between the multiple pre-created tobacco leaf varieties, the reference temperature when not alcoholized and the humidity compensation coefficient is queried to obtain the reference temperature and humidity compensation coefficient of the tobacco leaves when not alcoholized.

10. The device according to claim 8, characterized in that The acquisition unit is also used for: The temperature correction factor is determined as follows:

11. The device according to any one of claims 8 to 10, characterized in that The environmental parameter values ​​include effective accumulated temperature values; the internal quality index values ​​include starch content, protein degradation rate, Bacillus concentration and Penicillium concentration; The determination unit is specifically used for: If the following conditions are met, the tobacco leaf is judged to be in a standard alcoholization state, otherwise it is in an abnormal alcoholization state: The effective accumulated temperature value is within the set accumulated temperature threshold range; The starch content is not higher than the set upper limit; The protein degradation rate is not lower than the set degradation rate lower limit; The concentration of Bacillus is not lower than the set first concentration lower limit; The concentration of Penicillium is not higher than the set second concentration upper limit value.

12. The device according to claim 11, characterized in that The control unit is specifically used for: When the determination result is a standard alcoholization state, the environment control device is controlled to maintain the environment in the closed chamber unchanged, and an alcoholization completion signal is generated; When the determination result is an abnormal alcoholization state, the environment control device is controlled to dynamically adjust the environment in the closed warehouse according to the non-standard conditions.

13. An electronic device, characterized in that: The electronic device comprises: a shell, a processor, a memory, a circuit board and a power supply circuit, wherein the circuit board is arranged inside the space enclosed by the shell, and the processor and the memory are arranged on the circuit board; the power supply circuit is used to supply power to various circuits or devices of the above-mentioned electronic device; the memory is used to store executable program codes; the processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to execute the tobacco aging control method described in any one of claims 1 to 6.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more central processing units to implement the tobacco aging control method described in any one of claims 1-6.

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