Method and device for environmental control of a tobacco primary processing line

Abstract

The application discloses an environment control method and device for a cut tobacco production conveying line, acquires indoor and outdoor environment data, and obtains an environment data difference according to a difference value; when it is detected that the environment data difference exceeds a preset difference value threshold, a running power of a pressurized fan is obtained based on a ratio between the environment data difference and the preset difference value threshold; a corresponding air valve opening degree of a discharge hole is determined according to the width of the cut tobacco conveying line and a calibrated vertical distance; when it is detected that the cut tobacco conveying line is in a running state, the pressurized fan is controlled to work at the running power, so that air blown out of the discharge hole forms an air curtain on both sides of the cut tobacco conveying line. The environment data difference between indoor and outdoor environments is used to judge whether severe weather occurs, and the running power of the pressurized fan and the air valve opening degree of the air distributor are combined, so that the air distributor blows air along the discharge hole to form an air curtain on both sides of the cut tobacco conveying line, thereby effectively avoiding that the surrounding environment of the material is affected by the external environment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cigarette production equipment, and particularly relates to an environment control method and device for a cut tobacco production conveying line. BACKGROUND

[0002] In the existing cut tobacco production process of a cigarette factory, the change of the environment temperature and humidity of the cut tobacco production conveying line will affect the moisture and aroma of cut tobacco, and the environment supply thereof mainly relies on a central air conditioning system of a workshop to control the environment of the entire cut tobacco workshop. In order to reduce energy consumption, a cut tobacco workshop of a cigarette factory in southern China does not design a full air conditioning system, and relies on a post air supply air conditioning system with a 3-4 times per hour air exchange rate to maintain the environment temperature and humidity of the cut tobacco workshop.

[0003] In an actual process, when extreme weather is encountered, the air conditioning system is difficult to ensure the stability of the production environment temperature and humidity, which not only easily makes the moisture and aroma of the produced cut tobacco unstable, but also seriously affects the quality of cigarette products. SUMMARY

[0004] To solve the technical problems that, when extreme weather is encountered, the air conditioning system is difficult to ensure the stability of the production environment temperature and humidity, which not only easily makes the moisture and aroma of the produced cut tobacco unstable, but also seriously affects the quality of cigarette products, the application provides an environment control method and device for a cut tobacco production conveying line, and the technical scheme is as follows:

[0005] In a first aspect, an environment control method for a cut tobacco production conveying line is provided, which comprises the following steps.

[0006] Obtaining environment data indoors and environment data outdoors, and obtaining an environment data difference based on the difference between the environment data indoors and the environment data outdoors;

[0007] When it is detected that the environment data difference exceeds a preset difference threshold value, obtaining an operation power of a pressurized fan based on the ratio between the environment data difference and the preset difference threshold value;

[0008] Determining the opening degree of a wind valve corresponding to a discharge hole in an air distributor based on the width of a cut tobacco conveying line and the calibrated vertical distance between the air distributor and the cut tobacco conveying line; wherein the pressurized fan is arranged between an air conditioning pipeline and the air distributor, and at least one discharge hole is arranged on the outer surface of the air distributor;

[0009] When it is detected that the cut tobacco conveying line is in a running state, controlling the pressurized fan to work according to the operation power, so as to form a wind curtain on both sides of the cut tobacco conveying line by the wind blown out of the discharge hole.

[0010] In an optional solution of the first aspect, obtaining the operation power of the pressurized fan based on the ratio between the environment data difference and the preset difference threshold value comprises:

[0011] querying the calibration power corresponding to the preset difference threshold from the preset database;

[0012] multiplying the ratio between the environmental data difference and the preset difference threshold and the calibration power to obtain the running power of the pressure fan.

[0013] In a further alternative of the first aspect, after obtaining the environmental data difference according to the difference between the indoor environmental data and the outdoor environmental data, further comprising:

[0014] querying the calibration power corresponding to the environmental data difference from the preset database when detecting that the environmental data difference does not exceed the preset difference threshold;

[0015] taking the calibration power as the running power of the pressure fan.

[0016] In a further alternative of the first aspect, the outer surface of the air distributor is provided with a first row of holes and a second row of holes;

[0017] determining the air valve opening degree corresponding to the holes in the air distributor according to the width of the cut tobacco conveying line and the calibration vertical distance between the air distributor and the cut tobacco conveying line, comprising:

[0018] respectively determining a first vertical distance between the first row of holes and the cut tobacco conveying line and a second vertical distance between the second row of holes and the cut tobacco conveying line;

[0019] calculating the hole included angle according to the width of the cut tobacco conveying line and the calibration vertical distance when detecting that the first vertical distance is consistent with the calibration vertical distance between the air distributor and the cut tobacco conveying line;

[0020] taking the preset first air valve opening degree as the air valve opening degree corresponding to the first row of holes;

[0021] multiplying the reciprocal of the cosine value of the hole included angle and the preset first air valve opening degree to obtain a second air valve opening degree, and taking the second air valve opening degree as the air valve opening degree corresponding to the second row of holes; or

[0022] calculating the hole included angle according to the width of the cut tobacco conveying line and the calibration vertical distance when detecting that the second vertical distance is consistent with the calibration vertical distance between the air distributor and the cut tobacco conveying line;

[0023] taking the preset first air valve opening degree as the air valve opening degree corresponding to the second row of holes;

[0024] multiplying the reciprocal of the cosine value of the hole included angle and the preset first air valve opening degree to obtain a second air valve opening degree, and taking the second air valve opening degree as the air valve opening degree corresponding to the first row of holes.

[0025] In a further optional implementation of the first aspect, after the first vertical distance between the first row of holes and the tobacco conveying line and the second vertical distance between the second row of holes and the tobacco conveying line are determined respectively, the method further comprises:

[0026] When the first vertical distance or the second vertical distance is inconsistent with the calibrated vertical distance, determining the size between the first vertical distance and the second vertical distance;

[0027] When the first vertical distance is smaller than the second vertical distance, obtaining the straight-line distances from the first row of holes to both sides of the tobacco conveying line respectively;

[0028] calculating a calibration angle between the smallest straight-line distance and the calibrated vertical distance, and controlling the air distributor to rotate according to the calibration angle.

[0029] In a further optional implementation of the first aspect, the outer surface of the air distributor is further provided with a third row of holes between the first row of holes and the second row of holes;

[0030] After the pressurized fan is controlled to work according to the operating power, the method further comprises:

[0031] determining a third air valve opening degree based on the preset first air valve opening degree and a preset proportion parameter, wherein the third air valve opening degree is smaller than the preset first air valve opening degree;

[0032] taking the third air valve opening degree as the air valve opening degree corresponding to the third row of holes.

[0033] In a further optional implementation of the first aspect, the number of the tobacco conveying lines is greater than or equal to 2;

[0034] multiplying the ratio between the environmental data difference and the preset difference threshold value and the calibrated power to obtain the operating power of the pressurized fan, comprising:

[0035] multiplying the ratio between the environmental data difference and the preset difference threshold value, the number of the tobacco conveying lines, and the calibrated power to obtain the actual power of the pressurized fan;

[0036] When it is detected that the actual power of the pressurized fan exceeds the rated maximum power of the pressurized fan, introducing at least two pressurized fans;

[0037] determining the operating power of each pressurized fan according to the actual power of the pressurized fan.

[0038] In a second aspect, the embodiments of the present application provide an environment control device for a tobacco conveying line in a tobacco production, comprising:

[0039] The data acquisition module is configured to acquire indoor environment data and outdoor environment data, and obtain an environment data difference based on a difference between the indoor environment data and the outdoor environment data.

[0040] The data processing module is configured to, when detecting that the environment data difference exceeds a preset difference threshold, obtain an operation power of the pressure fan based on a ratio between the environment data difference and the preset difference threshold.

[0041] The opening degree determination module is configured to determine an opening degree of an air valve corresponding to the exhaust hole in the air distributor based on a width of the cut tobacco conveying line and a calibrated vertical distance between the air distributor and the cut tobacco conveying line, wherein the pressure fan is arranged between the air conditioner pipeline and the air distributor, and the outer surface of the air distributor is provided with at least one exhaust hole.

[0042] The control operation module is configured to, when detecting that the cut tobacco conveying line is in an operation state, control the pressure fan to work at the operation power, so that the air blown out of the exhaust hole forms an air curtain on both sides of the cut tobacco conveying line.

[0043] In a third aspect, an environment control device for a cut tobacco production conveying line is also provided, which includes a processor and a memory.

[0044] The processor is connected with the memory.

[0045] The memory is configured to store executable program codes.

[0046] The processor runs a program corresponding to the executable program codes by reading the executable program codes stored in the memory, so as to implement the environment control method for the cut tobacco production conveying line provided in the first aspect or any one of the implementation manners of the first aspect.

[0047] In a fourth aspect, a computer storage medium is provided, which stores a computer program including program instructions, and the program instructions, when executed by a processor, can implement the environment control method for the cut tobacco production conveying line provided in the first aspect or any one of the implementation manners of the first aspect.

[0048] In the embodiment of the present application, when the environment of the cut tobacco production conveying line is controlled, the indoor environment data and the outdoor environment data are obtained, and the environment data difference is obtained according to the difference between the indoor environment data and the outdoor environment data; when it is detected that the environment data difference exceeds the preset difference threshold value, the running power of the pressure fan is obtained based on the ratio between the environment data difference and the preset difference threshold value; the opening degree of the air valve corresponding to the exhaust hole in the air distributor is determined according to the width of the cut tobacco conveying line and the calibrated vertical distance between the air distributor and the cut tobacco conveying line; when it is detected that the cut tobacco conveying line is in the running state, the pressure fan is controlled to work at the running power, so that the air blown out of the exhaust hole forms an air curtain on both sides of the cut tobacco conveying line. By judging whether the severe weather occurs through the environment data difference between the indoor and outdoor, and combining the running power of the pressure fan and the opening degree of the air valve of the air distributor, the air blown out of the air distributor along the exhaust hole can form an air curtain on both sides of the cut tobacco conveying line, so as to effectively avoid the influence of the external environment on the surrounding environment of the material, and by controlling the running power of the pressure fan, the environmental temperature and humidity of the production line can be stabilized, the quality and stability of the product can be improved, and the overall energy consumption is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0050] Figure 1 The overall flowchart of the environment control method for the cut tobacco production conveying line provided in the embodiment of the present application is shown in the figure.

[0051] Figure 2 The architecture schematic diagram of the environment control system provided in the embodiment of the present application is shown in the figure.

[0052] Figure 3 The structure schematic diagram of the environment control device for the cut tobacco production conveying line provided in the embodiment of the present application is shown in the figure.

[0053] Figure 4 The structure schematic diagram of the environment control device for the cut tobacco production conveying line provided in the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application.

[0055] In the following description, the terms "first", "second", etc. are used only for the purpose of description, and should not be interpreted as indicating or implying relative importance. The following description provides a plurality of embodiments of the present application, and different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, C, and another embodiment includes features B, D, the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, even though such embodiments can not be explicitly described in the following.

[0056] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes can be made in the function and arrangement of elements described without departing from the scope of the application. Various examples can omit, substitute, or add various procedures or components as appropriate. For instance, the methods described can be performed in an order different than described, and various steps can be added, omitted, or combined. Also, features described with respect to some examples can be combined in other examples.

[0057] See Figure 1 , Figure 1 A flowchart of an environment control method for a tobacco production conveying line is shown.

[0058] As Figure 1 shown, the environment control method for a tobacco production conveying line can include at least the following steps:

[0059] Step 102, obtaining indoor environment data and outdoor environment data, and obtaining an environment data difference according to the difference between the indoor environment data and the outdoor environment data.

[0060] In the embodiments of the present application, the environment control method for the cut tobacco production conveying line can be applied to, but is not limited to, a control terminal corresponding to the cut tobacco production conveying line. The control terminal can be used to control all devices associated with the cut tobacco production conveying line, such as the air conditioning system, the sensor, the pressurized fan, the air distributor, and the cut tobacco conveying line, to ensure stable operation of the entire production line. The control terminal can be connected to the air conditioning system associated with the cut tobacco production conveying line to control the opening or closing of the air conditioning system according to user requirements. The control terminal can also be connected to the sensor associated with the cut tobacco production conveying line to obtain environmental data collected by the sensor. The environmental data can include, but is not limited to, indoor temperature data, indoor humidity data, outdoor temperature data, and outdoor humidity data. The control terminal can also be connected to the pressurized fan associated with the cut tobacco production conveying line to control the operating power of the pressurized fan according to the difference between the environmental data, thereby achieving precise control of the production line environment. The control terminal can also be connected to the air distributor associated with the cut tobacco production conveying line to control the opening degree of the air valve in the air distributor. In this way, the air blown out of the exhaust holes in the air distributor can form an air curtain on both sides of the cut tobacco conveying line, avoiding the influence of the external environment on the materials on the cut tobacco conveying line (i.e., forming a closed environment), and also providing constant temperature and humidity micro-positive pressure air supply to the materials on the cut tobacco conveying line. It can be understood that the air distributor can be cylindrical and made of flexible, anti-mildew, and antibacterial self-cleaning material. It is arranged at the output end of the pressurized fan through a hoisting support, and at least two exhaust holes are formed on the outer surface of the air distributor, each of which corresponds to a plurality of small holes with uniform diameters. The control terminal can also be connected to the cut tobacco conveying line associated with the cut tobacco production conveying line to control the cut tobacco conveying line to convey cut tobacco materials in a specified direction. By comparing the indoor and outdoor environmental data, it can be determined whether severe weather occurs. In combination with the operating power of the pressurized fan and the opening degree of the air valve of the air distributor, the air blown out of the exhaust holes of the air distributor can form an air curtain on both sides of the cut tobacco conveying line, effectively avoiding the influence of the surrounding environment on the materials, and by controlling the operating power of the pressurized fan, the environmental temperature and humidity of the production line can be stabilized while improving the quality and stability of the products, and the overall energy consumption is further reduced.

[0061] Specifically, when the environment of the cut tobacco generating conveying line is controlled, the indoor environment data and the outdoor environment data can be obtained by the indoor environment sensor and the outdoor sensor respectively, to determine whether the current outdoor environment is severe weather, wherein the environment data can include but is not limited to humidity data or temperature data, for example, when the environment data is temperature data, the temperature change data collected by the temperature sensors arranged indoors and outdoors within a preset time interval can be obtained. It can be understood that the type of sensor in the embodiments of the present application can correspond to the type of environment data, which is not limited to the exemplary temperature sensor or humidity sensor.

[0062] Further, after obtaining the indoor environment data and the outdoor environment data, the environment data difference between the indoor environment data and the outdoor environment data at the same time can be calculated by the time corresponding relationship, and when the obtained indoor environment data and outdoor environment data correspond to multiple time points, the environment data difference between the indoor environment data and the outdoor environment data at each time point can be calculated first, and then the environment data difference in a certain time period can be obtained by mean calculation.

[0063] Step 104, when it is detected that the environment data difference exceeds the preset difference threshold, the running power of the pressure fan is obtained based on the ratio between the environment data difference and the preset difference threshold.

[0064] Specifically, after the environment data difference is calculated, the size between the environment data difference and the preset difference threshold can be determined, wherein the preset difference threshold can be the standard environment data difference in the ideal state. It can be understood that when it is detected that the environment data difference exceeds the preset difference threshold, it indicates that the possibility of encountering extreme weather at this time is larger, and then the calibration power corresponding to the preset difference threshold can be queried in the preset database, and the actual running power of the pressure fan can be obtained by multiplying the ratio between the environment data difference and the preset difference threshold and the calibration power. The preset database stores a plurality of environment data difference values and the running power of the pressure fan corresponding to each environment data difference value, and the maximum value of the plurality of environment data difference values is the preset difference threshold. The running power of the pressure fan corresponding to each environment data difference value can stabilize the environment of the cut tobacco generating conveying line through the blowing produced by the pressure fan under the normal operation of the air conditioning system.

[0065] When it is detected that the environment data difference does not exceed the preset difference threshold, it indicates that the possibility of encountering extreme weather at this time is low, and in order to improve the environment control efficiency of the cut tobacco generating conveying line, the actual power corresponding to the environment data difference can be queried in the above-mentioned preset database, and the actual power can be directly used as the running power of the pressure fan.

[0066] It should be noted that the number of the cut tobacco conveying lines in the embodiments of the present application can be, but is not limited to, one or more, and the number of the cut tobacco conveying lines corresponding to the one or more embodiments described above is one. It can be understood that when the number of the cut tobacco conveying lines is at least two, after the actual power of the pressure fan is obtained by multiplying the ratio between the environmental data difference and the preset difference threshold, the number of the cut tobacco conveying lines, and the rated power, it can also be determined whether the actual power of the pressure fan exceeds the rated maximum power of any pressure fan. When it is detected that the actual power of the pressure fan exceeds the rated maximum power of any pressure fan, it indicates that the single pressure fan cannot meet the environmental control requirements of the cut tobacco conveying line at this time, and at least two pressure fans can be introduced, which can be, but are not limited to, the number of the pressure fans being consistent with the number of the cut tobacco conveying lines, so as to realize the environmental control of the corresponding cut tobacco conveying line by each pressure fan, and the operating power of each pressure fan can be the ratio between the actual power and the number of the cut tobacco conveying lines, and this is not limited thereto. When the number of the pressure fans is consistent with the number of the cut tobacco conveying lines, the air conditioning pipeline can be in communication with each pressure fan, and each pressure fan is connected with an air distributor above the corresponding cut tobacco conveying line.

[0067] In step 106, the opening degree of the air valve corresponding to each row hole in the air distributor is determined according to the width of the cut tobacco conveying line and the rated vertical distance between the air distributor and the cut tobacco conveying line.

[0068] In the embodiments of the present application, the outer surface of the air distributor can be provided with a first row hole and a second row hole, so that the air blown out through the first row hole and the second row hole can be on both sides of the cut tobacco conveying line, thereby forming a closed environment on the cut tobacco conveying line, and because the distances from the first row hole and the second row hole to both sides of the cut tobacco conveying line are different, the opening degrees of the air valves corresponding to the first row hole and the second row hole are also different.

[0069] Specifically, when determining the opening degree of the air valve corresponding to each row hole, the first vertical distance between the first row hole and the cut tobacco conveying line and the second vertical distance between the second row hole and the cut tobacco conveying line can be determined first. The vertical distance between the row hole and the cut tobacco conveying line can be determined by, but is not limited to, collecting distance data between the outer surface of the air distributor and the cut tobacco conveying line through a distance measuring sensor arranged on the cut tobacco conveying line, the signal emitting direction of the distance measuring sensor being perpendicular to the conveying direction of the cut tobacco conveying line, and because the row hole is composed of a plurality of small holes with uniform diameters, the discontinuous distance data in the distance data can be analyzed and processed to obtain the vertical distance corresponding to each row hole.

[0070] Further, after the first vertical distance and the second vertical distance are determined respectively, it can be judged whether the first vertical distance or the second vertical distance is consistent with the standard vertical distance between the air distributor and the tobacco conveying line, where the standard vertical distance between the air distributor and the tobacco conveying line can be understood as the shortest vertical distance between the outer surface of the air distributor at the current position and the tobacco conveying line. It can be understood that when the first vertical distance is detected to be consistent with the standard vertical distance between the air distributor and the tobacco conveying line, it indicates that the position of the first row of holes is currently at the bottom of the outer surface of the air distributor, that is, the vertical distance between the first row of holes and the tobacco conveying line is the closest (the vertical distance between the second row of holes and the tobacco conveying line is farther), and then the hole included angle can be obtained by substituting the width of the tobacco conveying line and the standard vertical distance into the tangent function, but not limited thereto. Here, in the tangent function, the width of the tobacco conveying line can be used as the numerator and the standard vertical distance can be used as the denominator to obtain the tangent value corresponding to the hole included angle through the ratio between the numerator and the denominator, and then the hole included angle corresponding to the tangent value can be converted according to the table lookup method.

[0071] It should be noted that the hole included angle can be understood as the approximate included angle between the line connecting the midpoint of the first row of holes and the midpoint of the air distributor and the line connecting the midpoint of the second row of holes and the midpoint of the air distributor, so as to obtain the relationship between the damper opening degree of the first row of holes and the second row of holes according to the hole included angle.

[0072] When the actual included angle between the first row of holes and the second row of holes is known, after the hole included angle is calculated, it can be judged whether the actual included angle is consistent with the hole included angle. When the actual included angle is detected to be inconsistent with the hole included angle, it indicates that the distance between the air distributor and the tobacco conveying line needs to be adjusted (the width of the tobacco conveying line is fixed), and then the ideal distance between the air distributor and the tobacco conveying line can be converted according to the actual included angle and the width of the tobacco conveying line, and the air distributor can be adjusted through the difference between the ideal distance and the standard vertical distance.

[0073] Further, after the hole included angle is obtained, the preset first damper opening degree can be used as the damper opening degree corresponding to the first row of holes, where the preset first damper opening degree can ensure that the air blown out of the air distributor through the first row of holes is high-speed air, so as to form an air curtain on one side of the tobacco conveying line, and the product of the reciprocal of the cosine value corresponding to the hole included angle and the preset first damper opening degree can be used as the damper opening degree corresponding to the second row of holes, where the damper opening degree corresponding to the second row of holes is greater than the damper opening degree corresponding to the first row of holes, so as to ensure that the air blown out of the air distributor through the second row of holes is high-speed air and an air curtain is formed on the other side of the tobacco conveying line.

[0074] As an option of the embodiment of the present application, after the first vertical distance between the first row of holes and the tobacco conveying line and the second vertical distance between the second row of holes and the tobacco conveying line are determined respectively, the method further comprises:

[0075] When the first vertical distance or the second vertical distance is inconsistent with the calibration vertical distance, determining the size between the first vertical distance and the second vertical distance;

[0076] When the first vertical distance is smaller than the second vertical distance, obtaining the linear distance between the first row of holes and the two sides of the tobacco conveying line respectively;

[0077] Calculating the calibration angle between the smallest linear distance and the calibration vertical distance, and controlling the air distributor to rotate according to the calibration angle.

[0078] Specifically, when the first vertical distance or the second vertical distance is inconsistent with the calibration vertical distance, it indicates that the first row of holes and the second row of holes are not at the bottom of the outer surface of the air distributor at this time. In order to ensure the isolation effect of the closed space, the size between the first vertical distance and the second vertical distance can be determined, and when the first vertical distance is detected to be smaller than the second vertical distance, the linear distance between the first row of holes and the two sides of the tobacco conveying line is obtained. Here, the linear distance between the first row of holes and the two sides of the tobacco conveying line can be but not limited to being collected by the laser sensor arranged on the two sides of the tobacco conveying line.

[0079] Then, the smallest linear distance and the calibration vertical distance can be substituted into the cosine function to obtain the cosine value corresponding to the calibration angle, and the calibration angle corresponding to the cosine value is calculated by table lookup. Wherein, the numerator in the cosine function can be the calibration vertical distance, and the denominator can be the smallest linear distance. The ratio of the numerator to the denominator is the cosine value corresponding to the calibration angle.

[0080] Then, after obtaining the calibration angle, the air distributor can be controlled to rotate according to the calibration angle, so that the first vertical distance and the calibration vertical distance remain consistent, that is, the first row of holes is at the bottom of the outer surface of the air distributor.

[0081] Step 108, when it is detected that the tobacco conveying line is in a running state, controlling the pressurized fan to work according to the running power, so that the air blown by the row of holes forms an air curtain on both sides of the tobacco conveying line.

[0082] Specifically, when the tobacco conveyor line is detected to be in operation, the pressurizing fan can be controlled to work at the operating power. The air processed by the pressurizing fan flows into the air distributor and is blown onto both sides of the tobacco conveyor line through the opening of the air valves set in the exhaust holes, thereby forming an air curtain.

[0083] As another option in the embodiment of this application, the outer surface of the air distributor is further provided with a third row of holes, which is located between the first row of holes and the second row of holes;

[0084] After controlling the pressurizing fan to operate at the specified operating power, the method further includes:

[0085] Based on the preset first air valve opening degree and the preset proportional parameter, the third air valve opening degree is determined; wherein, the third air valve opening degree is less than the preset first air valve opening degree;

[0086] The opening degree of the third air valve is taken as the opening degree of the air valve corresponding to the third row of holes.

[0087] Specifically, in order to provide constant temperature and humidity micro-positive pressure airflow to the material on the tobacco conveyor line, after controlling the pressurized fan to operate at the specified power, the opening degree of the third air valve can be obtained based on the product of the preset first air valve opening degree and the preset proportional parameter, and this third air valve opening degree is used as the air valve opening degree corresponding to the third row of holes. Here, the third row of holes is used to output slow airflow to the material on the tobacco conveyor line, and its position is between the first row of holes and the second row of holes.

[0088] Please see Figure 2 The diagram shown is an architectural schematic of an environmental control system provided in an embodiment of this application. Figure 2 As shown, the environmental control system includes a flexible air distributor and a tobacco conveyor line. The flexible air distributor is installed above the tobacco conveyor line via duct supports and a distributor support. The outer surface of the flexible air distributor has a first row of holes for side airflow, a second row of holes for vertical airflow, and a third row of holes for permeation airflow into the material conveyor. Here, the side airflow from the first row of holes forms a high-speed air curtain on one side of the tobacco conveyor line, and the vertical airflow from the second row of holes forms a high-speed air curtain on the other side of the tobacco conveyor line. Through the air curtains on both sides and physical isolation at the bottom, the material on the conveyor line is enclosed in a microenvironment protected by the air curtain. Due to the presence of the air curtain, the material on the production line is isolated from the external environment, preventing external environmental influences on the material. The distributor's permeation airflow provides constant temperature and humidity micro-positive pressure airflow to the enclosed area without blowing away the material, ensuring that the environment around the material is not affected by the external environment and is under precise control.

[0089] Please see Figure 3 , Figure 3A structural diagram of an environment control device for a cut tobacco production conveying line is shown.

[0090] As shown in the figure, the environment control device for the cut tobacco production conveying line can at least include a data acquisition module 301, a data processing module 302, an opening degree determination module 303, and a control operation module 304, wherein: Figure 3

[0091] The data acquisition module 301 is configured to acquire indoor environment data and outdoor environment data, and obtain an environment data difference based on a difference between the indoor environment data and the outdoor environment data.

[0092] The data processing module 302 is configured to, when detecting that the environment data difference exceeds a preset difference threshold value, obtain an operation power of a pressure fan based on a ratio between the environment data difference and the preset difference threshold value.

[0093] The opening degree determination module 303 is configured to determine a wind valve opening degree corresponding to a discharge hole in an air distributor based on a width of a cut tobacco conveying line and a calibrated vertical distance between the air distributor and the cut tobacco conveying line, wherein the pressure fan is arranged between an air conditioning pipeline and the air distributor, and at least one discharge hole is arranged on an outer surface of the air distributor.

[0094] The control operation module 304 is configured to, when detecting that the cut tobacco conveying line is in an operation state, control the pressure fan to work at the operation power, so that air blown out of the discharge hole forms an air curtain on both sides of the cut tobacco conveying line.

[0095] In some possible embodiments, obtaining the operation power of the pressure fan based on the ratio between the environment data difference and the preset difference threshold value includes:

[0096] querying a calibrated power corresponding to the preset difference threshold value in a preset database;

[0097] multiplying the ratio between the environment data difference and the preset difference threshold value and the calibrated power to obtain the operation power of the pressure fan.

[0098] In some possible embodiments, after obtaining the environment data difference based on the difference between the indoor environment data and the outdoor environment data, the method further includes:

[0099] when detecting that the environment data difference does not exceed the preset difference threshold value, querying a calibrated power corresponding to the environment data difference in a preset database;

[0100] taking the calibrated power as the operation power of the pressure fan.

[0101] In some possible embodiments, the outer surface of the air distributor is provided with a first discharge hole and a second discharge hole. ​

[0102] The opening degree of the air valve corresponding to the first row of holes is determined according to the width of the cut tobacco conveying line and the calibrated vertical distance between the air distributor and the cut tobacco conveying line, comprising:

[0103] The first vertical distance between the first row of holes and the cut tobacco conveying line and the second vertical distance between the second row of holes and the cut tobacco conveying line are determined respectively;

[0104] When it is detected that the first vertical distance is consistent with the calibrated vertical distance between the air distributor and the cut tobacco conveying line, the hole angle is calculated according to the width of the cut tobacco conveying line and the calibrated vertical distance;

[0105] The preset first air valve opening degree is taken as the air valve opening degree corresponding to the first row of holes;

[0106] The reciprocal of the cosine value of the hole angle and the preset first air valve opening degree are multiplied to obtain the second air valve opening degree, and the second air valve opening degree is taken as the air valve opening degree corresponding to the second row of holes; or

[0107] When it is detected that the second vertical distance is consistent with the calibrated vertical distance between the air distributor and the cut tobacco conveying line, the hole angle is calculated according to the width of the cut tobacco conveying line and the calibrated vertical distance;

[0108] The preset first air valve opening degree is taken as the air valve opening degree corresponding to the second row of holes;

[0109] The reciprocal of the cosine value of the hole angle and the preset first air valve opening degree are multiplied to obtain the second air valve opening degree, and the second air valve opening degree is taken as the air valve opening degree corresponding to the first row of holes.

[0110] In some possible embodiments, after the first vertical distance between the first row of holes and the cut tobacco conveying line and the second vertical distance between the second row of holes and the cut tobacco conveying line are determined respectively, further comprising:

[0111] When it is detected that neither the first vertical distance nor the second vertical distance is consistent with the calibrated vertical distance, the size between the first vertical distance and the second vertical distance is determined;

[0112] When the first vertical distance is smaller than the second vertical distance, the straight line distances of the first row of holes to both sides of the cut tobacco conveying line are obtained;

[0113] The calibration angle between the smallest straight line distance and the calibrated vertical distance is calculated, and the air distributor is controlled to rotate according to the calibration angle.

[0114] In some possible embodiments, a third row of holes is further provided on the outer surface of the air distributor, and the third row of holes is between the first row of holes and the second row of holes;

[0115] After the control of the pressurizing fan working according to the running power, further comprising:

[0116] Based on the preset first air valve opening degree and the preset proportional parameter, the third air valve opening degree is determined, wherein the third air valve opening degree is less than the preset first air valve opening degree;

[0117] The third air valve opening degree is taken as the air valve opening degree corresponding to the third exhaust hole.

[0118] In some possible embodiments, the number of the cut tobacco conveying lines is greater than or equal to 2;

[0119] The product of the ratio between the environmental data difference and the preset difference threshold value and the rated power is calculated to obtain the running power of the pressurizing fan, comprising:

[0120] The product of the ratio between the environmental data difference and the preset difference threshold value, the number of the cut tobacco conveying lines and the rated power is calculated to obtain the actual power of the pressurizing fan;

[0121] When it is detected that the actual power of the pressurizing fan exceeds the rated maximum power of the pressurizing fan, at least two pressurizing fans are introduced;

[0122] The running power of each pressurizing fan is determined according to the actual power of the pressurizing fan.

[0123] Those skilled in the art can clearly understand that the technical solutions of the embodiments of the present application can be realized by means of software and / or hardware. The "unit" and "module" in the specification refer to software and / or hardware that can independently complete or cooperate with other components to complete a specific function, and the hardware may, for example, be a Field-Programmable Gate Array (FPGA), an Integrated Circuit (IC), etc.

[0124] Please refer to Figure 4 , Figure 4 A structure schematic diagram of another environment control device for a cut tobacco production conveying line provided by an embodiment of the present application is shown.

[0125] As Figure 4 shown, the environment control device 400 for the cut tobacco production conveying line can include at least one processor 401, at least one network interface 404, a user interface 403, a memory 405 and at least one communication bus 402.

[0126] The communication bus 402 can be used to realize the connection and communication of the above-mentioned various components.

[0127] The user interface 403 can include a button, and the optional user interface can further include a standard wired interface, a wireless interface, etc.

[0128] The network interface 404 can include, but is not limited to, a Bluetooth module, an NFC module, a Wi-Fi module, etc.

[0129] The processor 401 can include one or more processing cores. The processor 401 is connected to various parts in the environment control device 400 for a tobacco production conveying line by various interfaces and lines, and performs various functions of the environment control device 400 for a tobacco production conveying line and processes data by running or executing instructions, programs, code sets or instruction sets stored in the memory 405, and calling data stored in the memory 405. Alternatively, the processor 401 can be implemented in at least one of a hardware form of a DSP, an FPGA, and a PLA. The processor 401 can be integrated with a combination of one or more of a CPU, a GPU, and a modem, etc. The CPU is mainly used to process an operating system, a user interface, and an application program, etc.; the GPU is used to render and draw the content to be displayed on a display screen; and the modem is used to process wireless communication. It can be understood that the above-mentioned modem can also not be integrated into the processor 401, but can be implemented by a separate chip.

[0130] The memory 405 can include a RAM and can also include a ROM. Optionally, the memory 405 includes a non-transitory computer readable medium. The memory 405 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 405 can include a program storage area and a data storage area. The program storage area can store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; and the data storage area can store data involved in the above-mentioned various method embodiments, etc. The memory 405 can also be at least one storage device located away from the above-mentioned processor 401. Figure 4 As shown in the figure, the memory 405 as a computer storage medium can include an operating system, a network communication module, a user interface module, and an environment control application program for a tobacco production conveying line.

[0131] Specifically, the processor 401 can be used to call the environment control application program for a tobacco production conveying line stored in the memory 405, and specifically perform the following operations:

[0132] Obtain the indoor environment data and the outdoor environment data, and obtain the environment data difference according to the difference between the indoor environment data and the outdoor environment data;

[0133] When it is detected that the environment data difference exceeds the preset difference threshold value, a running power of the pressurized fan is obtained based on a ratio between the environment data difference and the preset difference threshold value.

[0134] A valve opening degree corresponding to the exhaust hole in the air distributor is determined according to a width of the cut tobacco conveying line and a calibrated vertical distance between the air distributor and the cut tobacco conveying line, wherein the pressurized fan is arranged between the air conditioning pipeline and the air distributor, and at least one exhaust hole is arranged on an outer surface of the air distributor;

[0135] When it is detected that the cut tobacco conveying line is in a running state, the pressurized fan is controlled to work at the running power, so that the air blown out of the exhaust hole forms an air curtain on both sides of the cut tobacco conveying line.

[0136] In some possible embodiments, the running power of the pressurized fan is obtained based on a ratio between the environment data difference and the preset difference threshold value, including:

[0137] A calibrated power corresponding to the preset difference threshold value is queried in a preset database;

[0138] The ratio between the environment data difference and the preset difference threshold value is multiplied by the calibrated power to obtain the running power of the pressurized fan.

[0139] In some possible embodiments, after the environment data difference is obtained according to a difference between the indoor environment data and the outdoor environment data, the method further includes:

[0140] When it is detected that the environment data difference does not exceed the preset difference threshold value, a calibrated power corresponding to the environment data difference is queried in a preset database;

[0141] The calibrated power is taken as the running power of the pressurized fan.

[0142] In some possible embodiments, the outer surface of the air distributor is provided with a first exhaust hole and a second exhaust hole;

[0143] The valve opening degree corresponding to the exhaust hole in the air distributor is determined according to the width of the cut tobacco conveying line and the calibrated vertical distance between the air distributor and the cut tobacco conveying line, including:

[0144] A first vertical distance between the first exhaust hole and the cut tobacco conveying line and a second vertical distance between the second exhaust hole and the cut tobacco conveying line are respectively determined;

[0145] When it is detected that the first vertical distance is consistent with the calibrated vertical distance between the air distributor and the cut tobacco conveying line, the exhaust hole included angle is calculated according to the width of the cut tobacco conveying line and the calibrated vertical distance;

[0146] The preset first valve opening degree is taken as the valve opening degree corresponding to the first exhaust hole;

[0147] multiply the reciprocal of the cosine value of the row hole included angle and the preset first air valve opening to obtain a second air valve opening, and take the second air valve opening as the air valve opening corresponding to the second row hole; or

[0148] When the second vertical distance is detected to be consistent with the calibrated vertical distance between the air distributor and the tobacco conveying line, the row hole included angle is calculated according to the width of the tobacco conveying line and the calibrated vertical distance;

[0149] Take the preset first air valve opening as the air valve opening corresponding to the second row hole;

[0150] multiply the reciprocal of the cosine value of the row hole included angle and the preset first air valve opening to obtain a second air valve opening, and take the second air valve opening as the air valve opening corresponding to the first row hole.

[0151] In some possible embodiments, after the first vertical distance between the first row hole and the tobacco conveying line and the second vertical distance between the second row hole and the tobacco conveying line are respectively determined, the method further comprises:

[0152] When the first vertical distance or the second vertical distance is detected to be inconsistent with the calibrated vertical distance, determine the size between the first vertical distance and the second vertical distance;

[0153] When the first vertical distance is smaller than the second vertical distance, obtain the straight line distances of the first row hole to both sides of the tobacco conveying line respectively;

[0154] Calculate the calibration included angle between the smallest straight line distance and the calibrated vertical distance, and control the air distributor to rotate according to the calibration included angle.

[0155] In some possible embodiments, the outer surface of the air distributor is further provided with a third row hole, and the third row hole is between the first row hole and the second row hole;

[0156] After the pressurized air blower is controlled to work according to the operating power, the method further comprises:

[0157] Determine the third air valve opening based on the preset first air valve opening and a preset proportion parameter; wherein the third air valve opening is smaller than the preset first air valve opening;

[0158] Take the third air valve opening as the air valve opening corresponding to the third row hole.

[0159] In some possible embodiments, the number of tobacco conveying lines is greater than or equal to 2;

[0160] multiply the ratio between the environmental data difference and the preset difference threshold value and the calibrated power to obtain the operating power of the pressurized air blower, comprising:

[0161] The actual power of the pressure fan is calculated by multiplying the ratio between the environment data difference and the preset difference threshold value, the number of the cut tobacco conveying lines, and the rated power;

[0162] When the actual power of the pressure fan is detected to exceed the rated maximum power of the pressure fan, at least two pressure fans are introduced;

[0163] The operation power of each pressure fan is determined according to the actual power of the pressure fan.

[0164] The application further provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the steps of the above method. The computer readable storage medium can include, but is not limited to, any type of disk, including a floppy disk, an optical disk, a DVD, a CD-ROM, a micro drive, and a magneto-optical disk, a ROM, a RAM, an EPROM, an EEPROM, a DRAM, a VRAM, a flash memory device, a magnetic card or an optical card, a nanosystem (including a molecular memory IC), or any type of medium or device suitable for storing instructions and / or data.

[0165] It should be noted that, for the foregoing method embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the application is not limited to the action sequence described, because according to the application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the application.

[0166] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0167] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic. The division of the units is only a logical function division. There can be another division manner in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical or other forms.

[0168] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e. may be located in one place, or may also be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0169] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0170] If the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the embodiments of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a mobile hard disk, a magnetic disk or an optical disk, and various media that can store program codes.

[0171] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be instructed by a program to complete the relevant hardware, and the program can be stored in a computer readable storage medium, which can include a flash disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc.

[0172] The above are only exemplary embodiments of the present disclosure, and cannot limit the scope of the present disclosure. That is, any equivalent changes and modifications made in accordance with the teachings of the present disclosure are still within the scope of the present disclosure. Those skilled in the art will easily think of embodiments of the present disclosure after considering the specification and practicing the disclosure herein. The present application is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or conventional techniques in the art that are not described in the present disclosure. The specification and examples are only considered as exemplary, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A method for environmental control of a tobacco manufacturing line, characterized in that, The method comprises the following steps: acquiring indoor environment data and outdoor environment data, and obtaining an environment data difference based on a difference between the indoor environment data and the outdoor environment data; when detecting that the environment data difference exceeds a preset difference threshold, obtaining an operating power of a pressure fan based on a ratio between the environment data difference and the preset difference threshold; determining a valve opening degree of an air distributor corresponding to an exhaust hole based on a width of a tobacco conveying line and a calibrated vertical distance between the air distributor and the tobacco conveying line, wherein the pressure fan is arranged between an air conditioning pipeline and the air distributor, and at least one exhaust hole is arranged on an outer surface of the air distributor; when detecting that the tobacco conveying line is in an operating state, controlling the pressure fan to operate at the operating power, so that air blown out of the exhaust hole forms an air curtain on both sides of the tobacco conveying line.

2. The method of claim 1, wherein, The method of obtaining the operating power of the pressure fan based on the ratio between the environment data difference and the preset difference threshold comprises the following steps: querying a calibrated power corresponding to the preset difference threshold in a preset database; multiplying the ratio between the environment data difference and the preset difference threshold and the calibrated power to obtain the operating power of the pressure fan.

3. The method of claim 2, wherein, After obtaining the environment data difference based on the difference between the indoor environment data and the outdoor environment data, the method further comprises the following steps: when detecting that the environment data difference does not exceed the preset difference threshold, querying a calibrated power corresponding to the environment data difference in the preset database; taking the calibrated power as the operating power of the pressure fan.

4. The method of claim 1, wherein, The outer surface of the air distributor is provided with a first exhaust hole and a second exhaust hole. The method of determining the valve opening degree of the air distributor corresponding to the exhaust hole based on the width of the tobacco conveying line and the calibrated vertical distance between the air distributor and the tobacco conveying line comprises the following steps: determining a first vertical distance between the first exhaust hole and the tobacco conveying line and a second vertical distance between the second exhaust hole and the tobacco conveying line, respectively; when detecting that the first vertical distance is consistent with the calibrated vertical distance between the air distributor and the tobacco conveying line, calculating an exhaust hole included angle based on the width of the tobacco conveying line and the calibrated vertical distance; taking a preset first valve opening degree as the valve opening degree corresponding to the first exhaust hole; multiplying an inverse of a cosine value of the exhaust hole included angle and the preset first valve opening degree to obtain a second valve opening degree, and taking the second valve opening degree as the valve opening degree corresponding to the second exhaust hole; or when detecting that the second vertical distance is consistent with the calibrated vertical distance between the air distributor and the tobacco conveying line, calculating an exhaust hole included angle based on the width of the tobacco conveying line and the calibrated vertical distance; taking a preset first valve opening degree as the valve opening degree corresponding to the second exhaust hole; multiplying an inverse of a cosine value of the exhaust hole included angle and the preset first valve opening degree to obtain a second valve opening degree, and taking the second valve opening degree as the valve opening degree corresponding to the first exhaust hole.

5. The method of claim 4, wherein, After determining the first vertical distance between the first row of holes and the tobacco conveying line, and the second vertical distance between the second row of holes and the tobacco conveying line, the method further includes: When either the first vertical distance or the second vertical distance is detected to be inconsistent with the calibrated vertical distance, the magnitude between the first vertical distance and the second vertical distance is determined. When the first vertical distance is less than the second vertical distance, the straight-line distances from the first row of holes to both sides of the tobacco conveying line are obtained; Calculate the calibration angle between the minimum straight-line distance and the calibrated vertical distance, and control the air distributor to rotate according to the calibration angle.

6. The method of claim 4, wherein, The outer surface of the air distributor is also provided with a third row of holes, which is located between the first row of holes and the second row of holes; After controlling the pressurizing fan to operate at the specified operating power, the method further includes: Based on the preset first air valve opening degree and the preset proportional parameter, the third air valve opening degree is determined; wherein, the third air valve opening degree is less than the preset first air valve opening degree; The opening degree of the third air valve is taken as the opening degree of the air valve corresponding to the third row of holes.

7. The method of claim 2, wherein, The number of tobacco shred conveying lines is greater than or equal to 2; The step of multiplying the ratio between the environmental data difference and the preset difference threshold, and the calibrated power to obtain the operating power of the booster fan includes: The actual power of the pressurizing fan is calculated by multiplying the ratio between the environmental data difference and the preset difference threshold, the number of tobacco conveying lines, and the calibrated power. When the actual power of the booster fan is detected to exceed the rated maximum power of the booster fan, at least two booster fans are introduced; The operating power of each of the pressurizing blowers is determined based on the actual power of the pressurizing blowers.

8. An environmental control device for a tobacco manufacturing conveying line, comprising: include: The data acquisition module is used to acquire indoor environmental data and outdoor environmental data, and to obtain the environmental data difference based on the difference between the indoor environmental data and the outdoor environmental data. The data processing module is used to obtain the operating power of the booster fan based on the ratio between the environmental data difference and the preset difference threshold when the detected environmental data difference exceeds a preset difference threshold. An opening determination module is used to determine the opening degree of the air valve corresponding to the exhaust hole in the air distributor based on the width of the tobacco conveying line and the calibrated vertical distance between the air distributor and the tobacco conveying line; wherein, the pressurizing fan is installed between the air conditioning duct and the air distributor, and at least one exhaust hole is opened on the outer surface of the air distributor; The control operation module is used to control the pressurizing fan to operate at the operating power when the tobacco conveying line is detected to be in operation, so that the air blown out of the exhaust hole forms an air curtain on both sides of the tobacco conveying line.

9. An environmental control device for a tobacco manufacturing conveying line, comprising: Including the processor and memory; The processor is connected to the memory; The memory is used to store executable program code; The processor runs a program corresponding to the executable program code stored in the memory by reading the executable program code, for performing the steps of the method according to any one of claims 1-7.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer readable storage medium stores instructions, which, when run on a computer or processor, cause the computer or processor to perform the steps of the method according to any one of claims 1-7.

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