Method and apparatus for determining the order of a plurality of tobacco bales through a loose conditioning apparatus

Abstract

The application provides a method and device for determining the order of a plurality of tobacco bales passing through a loose conditioning equipment. The method comprises: obtaining a plurality of sets of first historical data collected when the plurality of tobacco bales pass through the loose conditioning equipment, each set of first historical data comprising at least a collection time, a water addition flow rate of the loose conditioning equipment to tobacco leaves, and an outlet material moisture content of the tobacco leaves at an outlet of the loose conditioning equipment; removing invalid data in the first historical data; time-aligning the first historical data from which the invalid data is removed to obtain a plurality of sets of second historical data; determining second historical data corresponding to each tobacco bale; determining a water addition requirement of each tobacco bale when passing through the loose conditioning equipment based on the water addition flow rate and the outlet material moisture content data in the second historical data corresponding to each tobacco bale; and determining a predetermined order of the tobacco bales passing through the loose conditioning equipment based on the size of the water addition requirement of each tobacco bale, wherein the water addition requirement of the tobacco bales changes monotonously in the predetermined order.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco primary processing, and particularly relates to a method and device for determining the order of multiple tobacco bales through a loose conditioning device. BACKGROUND

[0002] A schematic diagram of the tobacco bales through the loose conditioning device in the loose conditioning process of the primary processing workshop is shown in FIG. 1. Different tobacco bales A, B, and C enter the loose conditioning device 14 continuously for processing. When the front end of the A tobacco bale 11 reaches the position of the outlet moisture meter 15, the rear end of the A tobacco bale 11, the material of the B tobacco bale 12, and the front end of the C tobacco bale 13 are simultaneously processed inside the loose conditioning device 14. The loose conditioning device 14 is an integral space with relatively consistent temperature and humidity. Figure 1 At present, due to factors such as the grade of incoming tobacco bales, the difference in internal and external moisture, and the distribution of the material, the detection value of the inlet moisture meter is obviously distorted. In order to reduce the influence of the detection distortion of the inlet moisture, a front fixed water adding and rear feedback control mode is usually used for closed-loop control of water adding. Specifically, the moisture content of the inlet material is set to a fixed value for control, the moisture content of the outlet material is detected, and PID feedback is used for closed-loop control.

[0003] However, the control mode has the following defects. On the one hand, there is a lag in control. Specifically, it takes about 5 minutes for the tobacco to reach the position of the outlet moisture meter from the inlet of the loose conditioning device. Therefore, the control data fed back by the current system is the data of the material 5 minutes ago. Due to possible differences in the material, the feedback data may no longer be suitable for the current control. On the other hand, the matching degree of water adding and supply is not sufficient. Specifically, as shown in FIG. 1, the rear end of the A tobacco bale 11, the material of the B tobacco bale 12, and the front end of the C tobacco bale 13 are simultaneously processed inside the loose conditioning device 14. At this time, the control is based on the detection feedback data of the A tobacco bale 11, which is more suitable for the processing of the material of the A tobacco bale 11. If the water adding demand of the materials of the B tobacco bale 12 and the C tobacco bale 13 is significantly different from that of the A tobacco bale, it will inevitably lead to excessive or insufficient water adding for the B tobacco bale 12 and the C tobacco bale 13, further causing fluctuations in the outlet moisture.

[0004] Figure 1 Therefore, there is a need for a method for reducing the influence of the defects of the control mode on the accuracy of water adding. SUMMARY

[0005] In order to reduce the influence of the defects of the control mode on the accuracy of water adding, the embodiments of the present application provide a method and device for determining the order of multiple tobacco bales through a loose conditioning device. By optimizing the order of the tobacco bales through the loose conditioning device, the influence of the defects of the control mode on the accuracy of water adding is reduced.

[0006]

[0007] ​​According to an aspect of the present application, embodiments of the present application provide a method for determining a sequence of a plurality of tobacco bales through a loose conditioning equipment, the tobacco bales containing tobacco leaves, the method comprising: obtaining a plurality of first historical data sets collected when the plurality of tobacco bales pass through the loose conditioning equipment, each first historical data set comprising at least a collection time, a water addition flow rate of the loose conditioning equipment to the tobacco leaves, and an outlet material moisture content of the tobacco leaves at an outlet of the loose conditioning equipment; removing invalid data from the first historical data; time-aligning the first historical data from which the invalid data is removed to obtain a plurality of second historical data sets; determining second historical data corresponding to each tobacco bale; determining a water addition requirement of each tobacco bale when passing through the loose conditioning equipment based on the water addition flow rate and the outlet material moisture content data in the second historical data corresponding to each tobacco bale; and determining a predetermined sequence of the tobacco bales passing through the loose conditioning equipment based on the water addition requirement of each tobacco bale, wherein the water addition requirement of the tobacco bales monotonically changes in the predetermined sequence.

[0008] In some embodiments, removing the invalid data from the first historical data comprises: removing data with a value of 0 in the water addition flow rate; and removing data with a value that is not positive in the outlet material moisture content.

[0009] In some embodiments, each first historical data set further comprises a cumulative material weight of the tobacco leaves entering the loose conditioning equipment or a material flow rate of the tobacco leaves entering the loose conditioning equipment, and wherein removing the invalid data from the first historical data further comprises: removing data with a value of 0 and repeated data in the cumulative material weight; or removing data with a value of 0 in the material flow rate.

[0010] In some embodiments, the water addition flow rate data and the outlet material moisture content data are further removed based on a number of data of the cumulative material weight or the material flow rate remaining after the invalid data is removed.

[0011] In some embodiments, the first historical data comprises head data collected when the tobacco leaves start entering the loose conditioning equipment and tail data collected when the tobacco leaves stop entering the loose conditioning equipment, and further removing the water addition flow rate data and the outlet material moisture content data comprises: removing, in the head data, one or more water addition flow rate data in a sequence from early to late in collection time; removing, in the head data, one or more outlet material moisture content data in a sequence from early to late in collection time; removing, in the tail data, one or more water addition flow rate data in a sequence from late to early in collection time; and removing, in the tail data, one or more outlet material moisture content data in a sequence from late to early in collection time. ​​​​​​​The number of data of the cumulative material weight or the material flow after removing the invalid data is N, the number of data of the water adding flow after removing the invalid data is N1, and the number of data of the outlet material moisture content after removing the invalid data is N2. The total number of data of the water adding flow removed in the head data and the tail data is N1-N, and the total number of data of the outlet material moisture content removed in the head data and the tail data is N2-N.

[0012] In some embodiments, the first historical data after removing the invalid data is time-aligned to obtain a plurality of groups of second historical data, including: sorting N data of the cumulative material weight or the material flow after removing the invalid data in the order of collection time as a first queue; sorting N data of the water adding flow after further removing in the order of collection time as a second queue; sorting N data of the outlet material moisture content after further removing in the order of collection time as a third queue; wherein the first queue, the second queue and the third queue are all sorted in the order of collection time from early to late, or all sorted in the order of collection time from late to early; the data of the cumulative material weight or the material flow in each first queue is corresponded to the data of the water adding flow in the same position of the second queue and the data of the outlet material moisture content in the same position of the third queue, to form a group of second historical data, and the collection time of the second historical data is the collection time of the data of the cumulative material weight in the second historical data.

[0013] In some embodiments, determining the second historical data corresponding to each tobacco bale includes: dividing the plurality of groups of second historical data into M data subsets, wherein M is the number of tobacco bales, and for any two data subsets in the M data subsets, the collection time of any one second historical data in one data subset is earlier than or later than the collection time of any one second historical data in the other data subset; each tobacco bale is one-to-one corresponded to each data subset, and the earlier the tobacco bale passes through the loose conditioning equipment, the earlier the collection time of the second historical data in the corresponding data subset.

[0014] In some embodiments, when the plurality of groups of second historical data are divided into M data subsets, the number of second historical data in each data subset is determined based on the proportion of the total weight of tobacco leaves in the corresponding tobacco bale to the total weight of tobacco leaves of all tobacco bales.

[0015] In some embodiments, the water adding demand of each tobacco bale when passing through the loose conditioning equipment is determined based on the water adding flow in the second historical data corresponding to each tobacco bale and the outlet material moisture content data, including: determining the arithmetic mean of all water adding flow data in each data subset as the water adding flow mean F of the corresponding tobacco bale; determining the arithmetic mean of all outlet material moisture content data in each data subset as the outlet material moisture content mean P of the corresponding tobacco bale; determining the water adding demand of each tobacco bale when passing through the loose conditioning equipment based on the water adding flow mean F and the outlet material moisture content mean P of the data subset corresponding to each tobacco bale.

[0016] In some embodiments, the water adding demand of each tobacco bale when passing through the loose conditioning equipment is determined based on the water adding flow mean and the outlet material moisture content mean of the data subset corresponding to each tobacco bale, including: obtaining the outlet material moisture content expectation H of the tobacco bale; obtaining the unit moisture water adding amount U of the tobacco bale, wherein the unit moisture water adding amount is the water adding flow needed to increase the unit moisture content; the water adding demand D of the tobacco bale when passing through the loose conditioning equipment is D = F + (H-P) x U.

[0017] According to another aspect of the present application, the embodiments of the present application provide a device for determining the order of a plurality of tobacco bales passing through a loose conditioning equipment, including a processor configured to execute the method provided by any of the embodiments of the present application.

[0018] The method and device for determining the order of a plurality of tobacco bales passing through a loose conditioning equipment provided by the embodiments of the present application determine the predetermined order of the tobacco bales passing through the loose conditioning equipment by calculating the size of the water adding demand of each tobacco bale, and the water adding demand of the tobacco bales changes monotonously in the predetermined order, so that the fluctuation of the water adding demand caused by the material difference of different tobacco bales is smaller when the tobacco bales pass through the loose conditioning equipment in the predetermined order, that is, the water adding demand difference between adjacent tobacco bales is reduced, the range of the water adding demand is reduced, the influence of the lag control is alleviated at a lower cost without changing the existing water adding control mode, the matching degree of the water adding supply and demand is improved, and the outlet moisture qualification rate is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description 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.

[0020] Figure 1 is a schematic view of a tobacco bale passing through a loose conditioning equipment provided by the embodiments of the present application;

[0021] Figure 2 is a flow chart of a method for determining the order of a plurality of tobacco bales through a loose conditioning apparatus according to an embodiment of the present application;

[0022] Figure 3 is a schematic diagram of partial head data according to an embodiment of the present application;

[0023] Figure 4 is a schematic diagram of partial tail data according to an embodiment of the present application;

[0024] Figure 5 is a schematic diagram of partial second history data according to an embodiment of the present application;

[0025] Figure 6 is a schematic diagram of partial tobacco bale and second history data according to an embodiment of the present application.

[0026] It should be understood that the dimensions of the various portions shown in the drawings are not necessarily drawn to scale. Furthermore, like or similar reference numerals are intended to refer to like or similar components. DETAILED DESCRIPTION

[0027] The technical solutions of the preferred embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0028] According to an aspect of the present application, an embodiment of the present application provides a method for determining the order of a plurality of tobacco bales through a loose conditioning apparatus, the tobacco bales containing tobacco leaves. As shown in Figure 1 The method provided by the embodiment includes steps S101, S102, S103, S104, S105 and S106.

[0029] Step S101, obtaining a plurality of groups of first historical data collected when a plurality of bales of tobacco pass through a loose conditioning equipment. Each group of first historical data at least includes collection time, water addition flow of the loose conditioning equipment to the tobacco, and outlet material moisture content of the tobacco at the outlet of the loose conditioning equipment. Exemplarily, the loose conditioning equipment can be a drum in a loose conditioning process, and when the bale of tobacco passes through the drum, a certain amount of water is added in the drum so as to have a desired material moisture content at the outlet of the drum. At least one batch of first historical data generated when the bale of tobacco passes through the loose conditioning equipment can be collected, and in some embodiments, a plurality of batches of first historical data generated when the bale of tobacco passes through the loose conditioning equipment can be collected to reduce the influence of abnormal factors on the authenticity of the first historical data. The collection method of each data in the first historical data can be performed by the method in the prior art, and the present application will not be repeated here.

[0030] Step S102, removing invalid data in the first historical data. When collecting the first historical data, in order to ensure the integrity of the data, the collection usually starts a period of time before the bale of tobacco enters the loose conditioning equipment, generates the head data, and continues to collect a period of time after the bale of tobacco stops entering the loose conditioning equipment, generates the tail data, therefore, the first historical data will contain some invalid data of the head and tail. In the present embodiment, the invalid data is removed to avoid the influence of the invalid data on the subsequent calculation.

[0031] Step S103, time aligning the first historical data from which the invalid data is removed to obtain a plurality of groups of second historical data. It can be understood that the bale of tobacco needs a certain time to pass through the loose conditioning equipment, and for the same bale of tobacco, the actual occurrence time of the events such as the bale of tobacco entering the loose conditioning equipment, adding water to the bale of tobacco, and detecting the material moisture content of the bale of tobacco is different, therefore, in the present embodiment, through time alignment, each data corresponding to the same bale of tobacco can be as accurate as possible.

[0032] Step S104, determining the second historical data corresponding to each bale of tobacco. By determining the second historical data corresponding to each bale of tobacco, the water addition requirement of the bale of tobacco can be calculated based on the second historical data corresponding to the bale of tobacco.

[0033] Step S105, determining the water addition requirement of each bale of tobacco when passing through the loose conditioning equipment. The water addition requirement is the water addition flow required for the bale of tobacco to reach the desired moisture content at the outlet when passing through the loose conditioning equipment. The water addition requirement of each bale of tobacco when passing through the loose conditioning equipment can be determined based on the water addition flow and the outlet material moisture content data in the second historical data corresponding to each bale of tobacco.

[0034] In step S106, a predetermined order of the plurality of tobacco bales passing through the loose conditioning equipment is determined based on the size of the water demand of each tobacco bale, wherein the water demand of the tobacco bales changes monotonously in the predetermined order. In this embodiment, the predetermined order of the plurality of tobacco bales passing through the loose conditioning equipment can be in ascending order of the water demand or in descending order of the water demand.

[0035] The method for determining the order of the plurality of tobacco bales passing through the loose conditioning equipment provided by the embodiments of the present application determines the predetermined order of the plurality of tobacco bales passing through the loose conditioning equipment by calculating the size of the water demand of each tobacco bale, and the water demand of the tobacco bales changes monotonously in the predetermined order. When the tobacco bales pass through the loose conditioning equipment in the predetermined order, the fluctuation of the water demand caused by the material difference between different tobacco bales is reduced, that is, the difference in the water demand between adjacent tobacco bales is reduced, and the range of the water demand is reduced. In this way, the influence of the lag control is reduced at a low cost without changing the existing water supply control mode, the matching degree of the water supply and demand is improved, and the qualified rate of the outlet moisture is improved.

[0036] Please refer to Figure 3 and Figure 4 In some embodiments, removing the invalid data in the first historical data includes: removing the data with a value of 0 in the water supply flow; and removing the data with a non-positive value in the outlet material moisture content. The data with a value of 0 in the water supply flow is the data collected when the material is not being watered, which is usually the data collected before the watering starts and the data collected after the watering stops. This part of the data in the first historical data cannot reflect the change of the water supply flow and is invalid data. The data with a non-positive value in the outlet material moisture content is usually the data collected when the material does not reach the outlet moisture meter and the data collected after the material has completely passed through the outlet moisture meter. This part of the data cannot reflect the change of the outlet material moisture content and is invalid data. In this embodiment, by removing the invalid data, the subsequent calculation can be more accurate.

[0037] Please refer to Figure 3 and Figure 4In some embodiments, each set of first historical data further comprises cumulative material weight of the tobacco entering the loose conditioning equipment or material flow of the tobacco entering the loose conditioning equipment, wherein removing invalid data in the first historical data further comprises: removing data with a value of 0 and repeated data in the cumulative material weight; or removing data with a value of 0 in the material flow. In this embodiment, by obtaining the cumulative material weight or the material flow, the time when the tobacco in the tobacco bale starts to enter the loose conditioning equipment and the time when the tobacco in the tobacco bale stops entering the loose conditioning equipment can be determined more accurately. Specifically, when the loose conditioning equipment detects that the cumulative material weight is greater than 0 or the material flow is greater than 0, it is considered that the tobacco in the tobacco bale starts to enter the loose conditioning equipment; when the loose conditioning equipment detects that the cumulative material weight is no longer increasing but remains a constant value or the material flow changes from a value greater than 0 to 0, it is considered that the tobacco in the tobacco bale stops entering the loose conditioning equipment. It can be understood that, in this embodiment, removing data with a value of 0 and repeated data in the cumulative material weight or removing data with a value of 0 in the material flow can remove data collected before the tobacco in the tobacco bale enters the loose conditioning equipment and data collected after the tobacco in the tobacco bale stops entering the loose conditioning equipment.

[0038] In some embodiments, based on the number of data of the cumulative material weight or the material flow remaining after removing invalid data, the water addition flow data and the outlet material moisture content data are further removed. In a period of time after starting water addition and a period of time before stopping water addition, the water addition flow data is in a head non-steady state or a tail non-steady state; similarly, in a period of time after the material just reaches the outlet moisture meter and a period of time before the material completely flows through the outlet moisture meter, the outlet material moisture content data is in a head non-steady state or a tail non-steady state, and data in the head non-steady state or the tail non-steady state needs to be removed as much as possible. Since the cumulative material weight or the material flow can accurately determine the time when the tobacco in the tobacco bale enters the loose conditioning equipment and the time when the tobacco in the tobacco bale stops entering the loose conditioning equipment, in this embodiment, the above data is used as a reference to further remove the water addition flow data and the outlet material moisture content data.

[0039] In some embodiments, the first historical data comprises head data collected when the tobacco starts to enter the loose conditioning equipment and tail data collected when the tobacco stops entering the loose conditioning equipment, and further removing the water addition flow data and the outlet material moisture content data comprises: removing, in the head data, one or more water addition flow data in order of collection time from early to late; and removing, in the head data, one or more outlet material moisture content data in order of collection time from early to late; or removing, in the tail data, one or more water addition flow data in order of collection time from late to early; and removing, in the tail data, one or more outlet material moisture content data in order of collection time from late to early. ​​​​​one water adding flow data, the water adding flow data in the tail data is removed in the order from late to early according to the collection time one or one outlet material moisture content data; wherein, N is the number of data of the cumulative material weight or the material flow after removing the invalid data, N1 is the number of data of the water adding flow after removing the invalid data, N2 is the number of data of the outlet material moisture content after removing the invalid data, the total number of the water adding flow data removed in the head data and the tail data is N1-N, and the total number of the outlet material moisture content data removed in the head data and the tail data is N2-N. In this embodiment, through the above processing mode, the data of the head non-steady state and the tail non-steady state can be further removed relatively evenly, and the number of the water adding flow data removed and the number of the outlet material moisture content data removed are the same, and both are equal to the number of data of the cumulative material weight or the material flow, thereby facilitating subsequent time alignment processing.

[0040] Please refer to Figure 5 In some embodiments, the first historical data after removing the invalid data is time-aligned to obtain a plurality of second historical data, including: sorting N data of the cumulative material weight or the material flow after removing the invalid data in the order of collection time as a first queue; sorting N data of the water adding flow after further removing in the order of collection time as a second queue; sorting N data of the outlet material moisture content after further removing in the order of collection time as a third queue; wherein, the first queue, the second queue and the third queue are sorted in the order of collection time from early to late, or are sorted in the order of collection time from late to early; the data of the cumulative material weight or the material flow in each first queue is corresponded to the data of the water adding flow in the same position of the second queue and the data of the outlet material moisture content in the same position of the third queue, to form a group of second historical data, and the collection time of the second historical data is the collection time of the data of the cumulative material weight in the second historical data. In this embodiment, through the above processing mode, N groups of second historical data can be obtained, and each group of second historical data can contain the cumulative material weight or the material flow, and the water adding flow and the outlet material moisture content corresponding to the collection time of the cumulative material weight or the material flow.

[0041] Please refer to Figure 6In some embodiments, determining the second historical data corresponding to each tobacco pack includes: dividing multiple sets of second historical data into M data subsets, where M is the number of tobacco packs; for any two data subsets within the M data subsets, the following condition must be met: the collection time of any second historical data in one data subset is earlier than, or later than, the collection time of any second historical data in the other data subset; each tobacco pack is then mapped one-to-one with each data subset, wherein the tobacco pack that passes through the loosening and rehumidification device earlier corresponds to the earlier collection time of the second historical data in its corresponding data subset. In this embodiment, the above method can divide multiple sets of second historical data into multiple data subsets containing temporally continuous second historical data. The second historical data within each data subset reflects, to a certain extent, the data continuously collected from the time a tobacco pack enters until it passes through the loosening and rehumidification device.

[0042] In some embodiments, when multiple sets of second historical data are divided into M data subsets, the number of second historical data in each data subset is determined based on the proportion of the total weight of tobacco leaves in the corresponding tobacco bales to the total weight of tobacco leaves in all tobacco bales. In actual production, the material flow rate is often controlled to fluctuate around a preset value. Therefore, the larger the total weight of tobacco leaves in a tobacco bale, the longer it takes for it to completely pass through the loosening and rehumidification equipment. Therefore, in this embodiment, determining the number of second historical data in a data subset based on the proportion of the total weight of tobacco leaves in the corresponding tobacco bales to the total weight of tobacco leaves in all tobacco bales can more accurately reflect the actual data of the tobacco bale when it passes through the loosening and rehumidification equipment. For example, when the total weight of tobacco leaves in each tobacco bale is the same, multiple sets of second historical data can be divided equally.

[0043] In some embodiments, the water requirement for each tobacco bale when passing through the loosening and rehumidification device is determined based on the water flow rate and outlet material moisture content data in the second historical data corresponding to each tobacco bale. This includes: determining the arithmetic mean of all water flow rate data in each data subset as the average water flow rate F for the corresponding tobacco bale; determining the arithmetic mean of all outlet material moisture content data in each data subset as the average outlet material moisture content P for the corresponding tobacco bale; and determining the water requirement for each tobacco bale when passing through the loosening and rehumidification device based on the average water flow rate F and the average outlet material moisture content P of the data subset corresponding to each tobacco bale. In this embodiment, the impact of data fluctuations can be reduced by using the average water flow rate F and the average outlet material moisture content P.

[0044] In some embodiments, based on the average water flow rate and average moisture content of the outlet material of the data subset corresponding to each tobacco bale, the water demand of each tobacco bale when passing through the loosening and rehumidification device is determined, including: obtaining the expected moisture content H of the outlet material of the tobacco bale, that is, the moisture content of the outlet material expected to be achieved during production; obtaining the unit moisture addition amount U of the tobacco bale, wherein the unit moisture addition amount is the increase in water flow rate required to increase the unit moisture content. For example, the unit moisture addition amount can be the increase in water flow rate required for each 1% increase in moisture content in the corresponding process under the same conditions, which can be obtained by empirical values ​​or actual measurement calculation; the water demand of the tobacco bale when passing through the loosening and rehumidification device is D = F + (HP) × U.

[0045] According to another aspect of this application, embodiments of this application provide an apparatus for determining the order in which multiple tobacco packs pass through a loosening and rehydration device, including a processor for performing the method provided in any embodiment of this application.

[0046] After optimizing the sequence of tobacco packs using the methods and apparatus provided in the embodiments of this application, the difference in water demand between tobacco packs can be effectively reduced, better adapting to the existing control mode, effectively mitigating the impact of hysteresis control, improving the matching degree of water supply and demand, improving the stability of water flow rate in the loosening and rehydration process, thereby improving the export moisture qualification rate and promoting the stable improvement of product quality.

[0047] Based on the various embodiments of this application described above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0048] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A method for determining the sequence of passing multiple tobacco bales through a loosening and rehumidification device, wherein the tobacco bales contain tobacco leaves, characterized in that, The method includes: Multiple sets of first historical data are collected when the multiple tobacco bales pass through the loosening and rehumidifying device. Each set of first historical data includes at least the collection time, the water flow rate of the loosening and rehumidifying device on the tobacco leaves, and the moisture content of the tobacco leaves at the outlet of the loosening and rehumidifying device. Remove invalid data from the first historical data; The first historical data, after removing invalid data, is time-aligned to obtain multiple sets of second historical data. Determine the second historical data corresponding to each of the cigarette packs; Based on the water flow rate and outlet material moisture content data in the second historical data corresponding to each tobacco pack, the water requirement for each tobacco pack when passing through the loosening and rehumidification device is determined. Based on the amount of water required for each tobacco pack, a predetermined sequence in which the tobacco packs pass through the loosening and rehumidification device is determined, wherein the amount of water required for the tobacco packs varies monotonically under the predetermined sequence. Removing invalid data from the first historical data includes: Remove data with a value of 0 from the water flow rate; Remove non-positive values ​​from the moisture content of the exported material; Each set of the first historical data also includes the cumulative material weight of tobacco leaves entering the loosening and rehumidification equipment or the material flow rate of tobacco leaves entering the loosening and rehumidification equipment, wherein removing invalid data from the first historical data also includes: Remove data with a value of 0 and duplicates from the cumulative material weight; or Remove data with a value of 0 from the material flow rate; Based on the amount of cumulative material weight or material flow rate data remaining after removing invalid data, the water addition flow rate data and the outlet material moisture content data are further removed. The first historical data includes headstock data collected when the tobacco leaves begin to enter the loosening and rehydration equipment and tailstock data collected when the tobacco leaves cease to enter the loosening and rehydration equipment. Further removal of the water flow rate data and the moisture content data of the outlet material includes: Remove from the feed data in ascending order of collection time. One or The aforementioned water flow rate data are sequentially removed from the feed head data in order of collection time from earliest to latest. One or The moisture content data of the exported material; Remove material tail data in ascending order of collection time. One or The aforementioned water flow rate data are sequentially removed from the tail data in ascending order of collection time. One or The moisture content data of the exported material; Where N is the number of data points for the cumulative material weight or material flow rate remaining after removing invalid data, N1 is the number of data points for the water addition flow rate remaining after removing invalid data, N2 is the number of data points for the outlet material moisture content remaining after removing invalid data, and the total number of data points for the water addition flow rate further removed from the head and tail data is: The total number of data points for the moisture content of the outlet material further removed from the headstock and tailstock data is: .

2. The method according to claim 1, characterized in that, The first historical data, after removing invalid data, is time-aligned to obtain multiple sets of second historical data, including: The N data points of cumulative material weight or material flow rate remaining after removing invalid data are sorted into the first queue according to the collection time. The N data points of water flow rate after further filtering are sorted into a second queue according to the collection time. The moisture content data of N outlet materials after further removal are sorted into a third queue according to the collection time; wherein, the first queue, the second queue and the third queue are all sorted in the order of collection time from early to late, or all sorted in the order of collection time from late to early. The data of cumulative material weight or material flow rate in each first queue are matched with the data of water addition flow rate at the same position in the second queue and the data of outlet material moisture content at the same position in the third queue to form a set of second historical data. The collection time of the second historical data is the data collection time of the cumulative material weight in the second historical data.

3. The method according to claim 2, characterized in that, Determining the second historical data corresponding to each of the cigarette packs includes: The multiple sets of the second historical data are divided into M data subsets, where M is the number of cigarette packs. For any two data subsets in the M data subsets, the following condition is met: the collection time of any second historical data in one data subset is earlier than the collection time of any second historical data in the other data subset, or both are later than the collection time of any second historical data in the other data subset. Each tobacco pack is associated with a specific data subset, wherein the earlier the tobacco pack was processed by the loosening and rehumidification device, the earlier the second historical data in its corresponding data subset was collected.

4. The method according to claim 3, characterized in that, When multiple sets of the second historical data are divided into M data subsets, the number of second historical data in each data subset is determined based on the proportion of the total weight of tobacco leaves in the tobacco pack corresponding to this data subset to the total weight of tobacco leaves in all tobacco packs.

5. The method according to claim 3, characterized in that, Based on the water flow rate and outlet material moisture content data in the second historical data corresponding to each tobacco bale, the water requirement for each tobacco bale when passing through the loosening and rehumidification device is determined, including: Determine the arithmetic mean of all water flow data in each data subset as the mean water flow rate F of the corresponding tobacco pack; Determine the arithmetic mean of the moisture content data of all exit materials in each data subset, and use it as the mean moisture content P of the exit materials of the corresponding tobacco packs; Based on the average water flow rate F and the average moisture content P of the outlet material of each tobacco bale corresponding to the data subset, the water demand of each tobacco bale when passing through the loosening and rehumidification device is determined.

6. The method according to claim 5, characterized in that, Based on the average water flow rate and average moisture content of the outlet material of each tobacco bale corresponding to a subset of data, the water requirement for each tobacco bale when passing through the loosening and rehumidification device is determined, including: Obtain the expected moisture content H of the outlet material of the tobacco pack; The unit water addition amount U of the cigarette pack is obtained, wherein the unit water addition amount is the increase in water addition flow rate required to increase the unit moisture content; Water requirement when tobacco packs pass through the loosening and rehumidification device .

7. An apparatus for determining the order in which multiple tobacco packs pass through a loosening and rehumidifying device, characterized in that, Includes a processor for performing the method as described in any one of claims 1-6.

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