Tobacco shred moisture monitoring method and device and computer equipment

Abstract

The invention relates to a tobacco shred moisture monitoring method and device and computer equipment. The method comprises the following steps: performing moisture detection on to-be-detected tobacco shreds conveyed in a cigarette making machine assembly line according to a preset detection frequency through a tobacco shred moisture sensor mounted on the cigarette making machine to obtain multiple pieces of target detection information; converting the target detection information into the target moisture content of the cut tobacco to be detected according to a preset conversion relation between the moisture content and the moisture detection information; and determining a moisture monitoring result of the cut tobacco to be detected according to each target moisture content. By adopting the method, the tobacco shred moisture of the tobacco shreds rolled and packed on the cigarette making machine can be monitored, so that the quality guarantee of produced finished cigarettes is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cigarette production, and in particular to a method, device and computer equipment for monitoring moisture in cut tobacco. Background Art

[0002] During cigarette production, the moisture content of finished cut tobacco is a key indicator of cigarette quality. Cut tobacco moisture not only affects the taste and quality stability of the cigarettes, but also production efficiency and output. Cut tobacco moisture refers to the moisture content of the tobacco. To ensure that the moisture content of the cut tobacco meets the process requirements for cigarette production, the moisture content of the cut tobacco is monitored during the production process in the tobacco-making workshop to ensure the quality of the produced tobacco. However, the moisture content of the cut tobacco is not only affected by multiple factors such as temperature and humidity during the processing and production process, but can also change during the transportation of the tobacco from the tobacco-making workshop to the cigarette-making machine for packaging. This can cause the finished cigarette to fail to meet the production process requirements due to the change in the moisture content of the cut tobacco. Summary of the Invention

[0003] Based on this, it is necessary to provide a method, device and computer equipment for monitoring the moisture content of cut tobacco in response to the above technical problems, which can monitor the moisture content of cut tobacco rolled on a cigarette making machine to improve the quality assurance of the finished cigarettes produced.

[0004] In a first aspect, the present application provides a method for monitoring moisture in cut tobacco, comprising:

[0005] The tobacco moisture sensor installed on the cigarette making machine detects the moisture content of the tobacco to be tested in the cigarette making machine assembly line according to the preset detection frequency, and obtains multiple target detection information;

[0006] According to the preset conversion relationship between moisture content and moisture detection information, each target detection information is converted into the target moisture content of the tobacco to be tested;

[0007] The moisture monitoring result of the tobacco to be tested is determined according to each target moisture content.

[0008] In one embodiment,

[0009] Determining the moisture monitoring result of the tobacco to be tested according to each target moisture content includes:

[0010] In the case where there is a target moisture content greater than a preset maximum moisture content and / or less than a preset minimum moisture content, determining that the moisture monitoring result of the cut tobacco to be tested is abnormal in moisture content;

[0011] In the absence of a target moisture content greater than the preset maximum moisture content and less than the preset minimum moisture content, the moisture content change trend of the tobacco to be tested is determined based on the order of obtaining each target detection information and the corresponding target moisture content, and the moisture monitoring result of the tobacco to be tested is determined based on the moisture content change trend, or the numerical relationship between each target moisture content and the preset maximum moisture content and the preset minimum moisture content.

[0012] In one embodiment, determining the moisture monitoring result of the cut tobacco to be tested based on the moisture content variation trend, or the numerical relationship between each target moisture content and the preset maximum moisture content and the preset minimum moisture content, includes any of the following:

[0013] When the moisture content variation trend is that a first number of consecutive target moisture contents are all greater than or less than an average moisture content, determining that the moisture monitoring result of the tested cut tobacco is a probability of having an abnormal moisture content; wherein the average moisture content is an average of the preset maximum moisture content and the preset minimum moisture content;

[0014] When the moisture content variation trend is that the target moisture content increases or decreases successively for a second number of consecutive times, determining that the moisture monitoring result of the cut tobacco to be tested is that there is a probability that the moisture content is abnormal;

[0015] When there is a target moisture content whose difference from the preset maximum moisture content and / or the preset minimum moisture content is less than a difference threshold, it is determined that the moisture monitoring result of the tested cut tobacco has a probability of abnormal moisture content.

[0016] In one embodiment, the probability of a water content anomaly occurring when the first number of consecutive target water contents are all greater than or less than the average water content is less than the probability of a water content anomaly occurring when the second number of consecutive target water contents are successively increasing or decreasing is less.

[0017] Furthermore, the probability of a water content anomaly occurring when there are a second number of consecutive target water contents that increase or decrease in sequence is lower than the probability of a water content anomaly occurring when there is a target water content whose difference from the preset maximum water content and / or the preset minimum water content is less than a difference threshold.

[0018] In one embodiment, the method further comprises:

[0019] When the moisture monitoring result indicates that the moisture content is abnormal or there is a probability that the moisture content is abnormal, alarm information corresponding to the moisture monitoring result is output.

[0020] In one embodiment, the conversion relationship is determined by:

[0021] Determining the true moisture content of the sample cut tobacco and obtaining initial detection information obtained by the cut tobacco moisture sensor performing moisture detection on the sample cut tobacco;

[0022] According to the corresponding relationship between the actual moisture content and the initial detection information, a conversion relationship between the moisture content and the moisture detection information is determined.

[0023] In one embodiment, determining the conversion relationship between the moisture content and the moisture detection information based on the correspondence between the actual moisture content and the initial detection information includes:

[0024] Performing a calibration operation on the initial detection information to obtain calibrated detection information; wherein the calibration operation at least includes temperature compensation;

[0025] According to the corresponding relationship between the actual moisture content and the calibration detection information, a conversion relationship between the moisture content and the moisture detection information is determined.

[0026] In one embodiment, the tobacco moisture sensor is a microwave sensor and is mounted on the back plate of the metering slot of the cigarette making machine, and the tobacco to be tested is located in the metering slot.

[0027] In a second aspect, the present application further provides a tobacco moisture monitoring device, comprising:

[0028] The moisture detection module is used to detect the moisture content of the tobacco to be tested in the cigarette making machine assembly line through the tobacco moisture sensor installed on the cigarette making machine at a preset detection frequency to obtain multiple target detection information;

[0029] a moisture content determination module, configured to convert each target detection information into a target moisture content of the tobacco to be tested according to a preset conversion relationship between moisture content and moisture detection information;

[0030] The result determination module is used to determine the moisture monitoring result of the tobacco to be tested according to each target moisture content.

[0031] In a third aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method provided in some embodiments of the first aspect when executing the computer program.

[0032] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method provided in some embodiments of the first aspect above.

[0033] In a fifth aspect, the present application also provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of the method provided in some embodiments of the first aspect above.

[0034] The above-mentioned tobacco moisture monitoring method, device, and computer equipment can detect the moisture content of tobacco for packaging in the cigarette making machine assembly line by installing a tobacco moisture sensor on the cigarette making machine. After converting the above-mentioned tobacco moisture into moisture content, the moisture monitoring result of the tobacco for packaging in the cigarette making machine assembly line can be determined based on the moisture content. In this way, on the one hand, by installing a tobacco moisture sensor on the cigarette making machine in the cigarette production process, the moisture content of tobacco transported from the tobacco making workshop to the cigarette making machine can be monitored. On the other hand, since packaging is the last step in the cigarette production process, by monitoring the moisture content of tobacco for packaging in the cigarette making machine, the moisture content of the tobacco in the finished cigarette can be controlled within a reasonable range, improving the precise control of the tobacco moisture of the finished cigarettes, ensuring that the tobacco moisture is in an optimal state during the production process, thereby improving the production quality indicators of the cigarettes and, in turn, improving the quality of the finished cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments of the present application or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A diagram illustrating an application environment of a tobacco moisture monitoring method provided in some embodiments of the present application;

[0037] Figure 2 A schematic flow chart of a method for monitoring moisture in cut tobacco provided in some embodiments of the present application;

[0038] Figure 3A It is a structural schematic diagram of a cigarette making machine;

[0039] Figure 3B For Figure 3A Schematic diagram of a tobacco moisture sensor installed in a metering slot of a cigarette making machine;

[0040] Figure 3C is a schematic diagram of a tobacco moisture sensor;

[0041] Figure 3D for Figure 3B A front view of the mounting structure of the tobacco moisture sensor;

[0042] Figure 3E for Figure 3B A left side view of the installation structure of the tobacco moisture sensor;

[0043] Figure 3F for Figure 3C Schematic diagram of the measuring surface of the tobacco moisture sensor;

[0044] Figure 4 A schematic diagram of a process for determining the conversion relationship between moisture content and moisture detection information provided in some embodiments of the present application;

[0045] Figure 5 A schematic diagram of a flow chart for determining the conversion relationship between moisture content and moisture detection information provided in other embodiments of the present application;

[0046] Figure 6A is a schematic diagram of a time series of target moisture content;

[0047] Figure 6B is a schematic diagram of a time series of another target moisture content;

[0048] Figure 6C is a schematic diagram of another time series of target moisture content;

[0049] Figure 6D is a schematic diagram of a time series of another target moisture content;

[0050] Figure 6E is a schematic diagram of a time series of another target moisture content;

[0051] Figure 7 A schematic flow chart of a method for monitoring moisture in cut tobacco provided in other embodiments of the present application;

[0052] Figure 8 A schematic flow chart of a method for monitoring moisture in cut tobacco provided in yet other embodiments of the present application;

[0053] Figure 9 A structural block diagram of a tobacco moisture monitoring device provided in some embodiments of the present application;

[0054] Figure 10 An internal structural diagram of a computer device provided for some embodiments of the present application. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0056] To ensure that the moisture content of cut tobacco meets the process requirements for cigarette production, moisture is monitored during the production process in the tobacco-making workshop to guarantee quality. However, the moisture content of cut tobacco is not only affected by temperature and humidity during the production process, but can also fluctuate during transportation from the tobacco-making workshop to the cigarette-making machine for packaging. This can cause the finished cigarettes to not meet production process requirements due to moisture variations in the cut tobacco.

[0057] Based on this, in order to solve the above technical problems, the embodiment of the present application provides a method for monitoring the moisture content of cut tobacco. Among them, the method for monitoring the moisture content of cut tobacco provided by the embodiment of the present application can be applied to Figure 1 In the application environment shown. The tobacco moisture sensor 102 communicates with the server 104 via a communication network. The data storage system can store data that the server 104 needs to process, for example, the conversion relationship between moisture content and moisture detection information. The data storage system can be integrated on the server 104, or it can be placed on the cloud or other network servers. The tobacco moisture sensor 102 is installed on the cigarette making machine, and can be various types of sensors such as microwave sensors. The server 104 can be an independent physical server. For example, the server 104 can be an industrial computer at the edge of the cigarette making machine, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides cloud computing services.

[0058] In an exemplary embodiment, Figure 2 As shown, a method for monitoring moisture in cut tobacco is provided. Figure 1 Taking the server 104 in the example as an example, the following steps are included:

[0059] S201, using a tobacco moisture sensor installed on the cigarette making machine, the tobacco to be tested transmitted in the cigarette making machine assembly line is tested for moisture according to a preset detection frequency to obtain a plurality of target detection information.

[0060] A cigarette-making machine is a machine that rolls tobacco into cigarettes using cigarette paper. The process it implements is called packing, and it is the last step in cigarette production. In order to monitor the moisture content of tobacco transferred from the tobacco-making workshop to the cigarette-making machine, a tobacco moisture sensor can be installed on the cigarette-making machine. Since the cigarette-making machine performs packing on an assembly line, the tobacco transferred in the cigarette-making machine assembly line is the tobacco to be tested. As the cigarette-making machine assembly line is driven, the tobacco to be tested sequentially passes through the detection range of the moisture detection sensor. As a result, the moisture sensor can detect the moisture content of the tobacco to be tested that enters its detection range according to a preset detection frequency, and obtain detection information. This detection information can be used as target detection information. Furthermore, since the tobacco moisture sensor continuously performs moisture detection during the operation of the cigarette-making machine, the amount of target detection information obtained is multiple.

[0061] Among them, in order to ensure that the above-mentioned moisture detection sensor can detect the moisture of as many tobacco shreds to be tested as possible transmitted in the cigarette making machine assembly line, the detection frequency of the above-mentioned moisture detection sensor can be determined based on the detection power of the above-mentioned moisture detection sensor, the transmission speed of the cigarette making machine assembly line and other information.

[0062] A cigarette-making machine typically includes four main parts: tobacco supply, forming, cutting, and weight control, as well as auxiliary parts such as printing and dust removal. According to the process requirements for cigarette production, after weighing tobacco that meets the process requirements, the cigarette-making machine can roll the tobacco into cigarettes using cigarette paper. Therefore, in order to wait for the cigarette-making line to deliver a sufficient weight of tobacco for rolling into cigarettes, the tobacco delivered by the cigarette-making line can be stopped at a weight control location (such as a metering slot). In order to ensure that the moisture detection sensor can detect the moisture content of all tobacco to be rolled into cigarettes delivered by the cigarette-making line, a tobacco moisture sensor can be installed at the weight control location to detect the moisture content of the tobacco stopped at the weight control location.

[0063] In an exemplary embodiment, the tobacco moisture sensor is mounted on a back plate of a metering slot of a cigarette making machine, and the tobacco to be tested is located in the metering slot.

[0064] Typically, in cigarette making machines, tobacco is transported using fluidized bed technology. The processed tobacco is delivered to the storage area by wind power, the metering rollers deliver the tobacco to the pre-supply tobacco body, the steep-angle lifting belts deliver the tobacco to the metering trough through the magnetic separation cover, and then the needle rollers deliver the tobacco to the fluidized bed to provide a pure tobacco flow for tobacco forming. For example, Figure 3A As shown in the figure, it is a schematic diagram of the structure of a cigarette making machine. Figure 3B As shown, that is, Figure 3AThe schematic diagram of the installation of a tobacco moisture sensor in the metering tank of a cigarette making machine is shown, wherein the acrylic plate 1 is the back plate of the metering tank of the cigarette making machine, and is used to install the tobacco moisture sensor; and the tobacco moisture sensor is installed using a flange 2, and a mounting hole is opened on the back plate of the metering tank. The tobacco moisture sensor can be fastened using the tightening flange 2, wherein the flange is a disc-shaped part, usually used to connect pipes, valves, pumps and other equipment, so that they can be sealed and easily disassembled. Furthermore, the moisture detection sensor 3 is a tobacco moisture sensor, which can detect the moisture of the tobacco to be tested in the metering tank. Furthermore, Figure 3C is a schematic diagram of a microwave sensor used as a tobacco moisture sensor. Figure 3D This is a front view of the installation structure of the tobacco moisture sensor. Figure 3E This is the left view of the installation structure of the tobacco moisture sensor. Figure 3F The diagram is a schematic diagram of the measuring surface of the tobacco moisture sensor, wherein the water sensing area is the area used to transmit and receive microwave signals. Figure 3C-3E As shown, the tobacco moisture sensor 2 is mounted on the flange 3 via an M3 hexagon socket screw, and the flange 3 is fixed to the back plate 3 of the metering tank via an M3 flat head screw 5 and an M3 nut 6.

[0065] Furthermore, optionally, given the limited space available for installing a tobacco moisture sensor on a cigarette-making machine, the tobacco moisture sensor may be a microwave sensor, such as a microwave moisture meter, compared to traditional infrared-based tobacco moisture sensors. The tobacco moisture sensor transmits a microwave signal to the tobacco to be tested via a microwave transmitter-receiver system. The signal passes through the tobacco to be tested and is received by a receiving system. By utilizing the characteristic that the dielectric constant of the tobacco to be tested is generally smaller than that of water, combined with the energy and phase losses during microwave transmission, moisture monitoring information of the tobacco to be tested is obtained, which serves as target detection information.

[0066] S202 , converting each target detection information into a target moisture content of the tobacco to be tested according to a preset conversion relationship between moisture content and moisture detection information.

[0067] Typically, depending on the detection principle of the tobacco moisture sensor, the target detection information obtained by the tobacco moisture sensor for testing the moisture content of the tobacco being tested in the cigarette making machine assembly line is a signal that matches the detection principle, rather than a direct moisture content. For example, when the tobacco moisture sensor is a microwave sensor, the target detection information may be a microwave signal, while when the tobacco moisture sensor is an infrared sensor, the target detection signal may be an infrared signal.

[0068] Based on this, in order to obtain the moisture content of the tobacco to be tested and to realize tobacco moisture monitoring based on the moisture content of the tobacco, the preset conversion relationship between moisture content and moisture detection information can be used to convert the above-mentioned target detection information into the target moisture content of the tobacco to be tested.

[0069] Typically, cut tobacco can be dried in a rigorous experimental environment, and its moisture content can be determined based on the weight change before and after drying. Therefore, the relationship between the actual moisture content of the cut tobacco and the moisture data obtained by the tobacco moisture sensor can be used to determine the conversion relationship between the moisture detection information of the tobacco moisture sensor and the moisture content of the tobacco.

[0070] Optionally, according to the type of tobacco delivered by the cigarette making machine assembly line in the actual production scenario, some tobacco belonging to the type of tobacco is selected as sample tobacco. Then, the moisture of the sample tobacco is detected using a tobacco moisture sensor to obtain the moisture detection result of the sample tobacco as the initial detection information. Afterwards, the true moisture content of the sample tobacco is obtained by drying and other methods. For example, in a laboratory environment, the sample tobacco is first weighed to obtain the weight of the sample tobacco as A. The sample tobacco is then dried to obtain the weight of the dried sample tobacco as B. Obviously, the weight reduction of the sample tobacco before and after drying (AB) is the weight of the water contained in the sample tobacco before drying. Therefore, the true moisture content of the sample tobacco can be obtained as (AB) / A%. Therefore, a correspondence between the true moisture content and the initial detection information can be established, and the above correspondence can be used as a conversion relationship between moisture content and moisture detection information.

[0071] S203: Determine the moisture monitoring result of the cut tobacco to be tested according to each target moisture content.

[0072] As is understandable, in cigarette production, production process requirements include requirements for the moisture content of cut tobacco. For each type of cigarette, qualified cigarettes are often required to have a moisture content within a specified range. Therefore, after determining the target moisture content of the cut tobacco being tested in the cigarette-making machine assembly line, the moisture content range corresponding to the type of cigarette produced by the current cigarette-making machine can be further determined. Thus, based on the numerical relationship between the target moisture content and the moisture content range, the moisture monitoring results of the cut tobacco being tested can be determined.

[0073] Optionally, the coordinate points indicated by the target moisture content can be marked in a preset two-dimensional coordinate diagram in the order of the monitoring time of the target detection information to obtain a time series diagram of the target moisture content. Thus, the moisture monitoring results of the tobacco to be tested can be determined based on the above-mentioned schematic diagram of the time series of the target moisture content.

[0074] For example, SPC (Statistical Process Control) can control and monitor the trend of target moisture content changing over time. The coordinate points indicated by the target moisture content can be marked in a preset two-dimensional coordinate graph in the order of the detection time of the target detection information. Thus, a sequence of coordinate points indicated by the target moisture content (i.e., the target moisture content sequence) is obtained in chronological order to form a complete statistical process control (SPC analysis). Thus, in the actual production process, the moisture index of the tobacco cut is monitored in the long-term monitoring, and the statistical tool visualization provides timely reminders and early warnings.

[0075] For example, Figure 6A The figure below is a schematic diagram of a time series of target moisture content for SPC early warning. The upper control limit (UCL) is the preset maximum moisture content, the lower control limit (LCL) is the preset minimum moisture content, and the central line (CL) is the average moisture content (i.e., the average of UCL and LCL). The value ranges of regions A, B, and C are the same. Figure 6A As shown in the figure, the points corresponding to each target moisture cut in the time series of target moisture cuts can be used to intuitively view the time series changes of target moisture cuts, as well as special target moisture cuts. For example, from left to right, the leftmost target moisture cut exceeds the control limit, two of the 2nd to 4th target moisture cuts are in region A below the median line, four of the 5th to 9th target moisture cuts are in region B above the median line, the 10th to 17th target moisture cuts are in regions B and C below the median line, and the 18th to 24th target moisture cuts continue to rise, etc.

[0076] Optionally, when the target moisture content is within the moisture content range corresponding to the type of cigarettes produced by the current cigarette-making machine, the moisture monitoring result of the tobacco to be tested can be determined to be normal in moisture content; conversely, when the target moisture content exceeds the above moisture content range, the moisture monitoring result of the tobacco to be tested can be determined to be abnormal in moisture content.

[0077] Furthermore, optionally, when the moisture monitoring result of the tobacco to be tested shows that the moisture content is abnormal, an alarm message may be outputted by emitting a buzzing sound, flashing a red light, displaying highlighted text on a display screen, or the like.

[0078] Optionally, the tobacco moisture sensor can process and transmit 4-20mA (milliampere) current signals and RS485 (TIA / EIA-485-A) digital signals. Among them, the tobacco moisture sensor is connected to a server (such as an industrial computer at the edge of a cigarette making machine), and it can output moisture detection information represented by a 4-20mA current signal to the server. The server can then store the above moisture detection information in a database, and by monitoring and diagnosing the tobacco moisture data, and combining the cigarette quality data requirements in the production process requirements to analyze the reasonable range of moisture content of the tobacco to be tested, provide precise control of tobacco moisture. The RS483 digital signal is a control signal sent by a server (such as an industrial computer at the edge of a cigarette making machine) received by the tobacco moisture sensor, which is used to adjust the emission signal strength, monitoring frequency and other related information of the tobacco moisture sensor.

[0079] In the above embodiment, by installing a tobacco moisture sensor on the cigarette making machine, the moisture content of the tobacco for packaging in the cigarette making machine assembly line can be detected. After converting the above tobacco moisture into a moisture content, the moisture monitoring result of the tobacco for packaging in the cigarette making machine assembly line can be determined based on the moisture content. In this way, on the one hand, by installing a tobacco moisture sensor on the cigarette making machine in the cigarette production process, the moisture content of the tobacco transported from the tobacco making workshop to the cigarette making machine can be monitored. On the other hand, since packaging is the last step in the cigarette production process, by monitoring the moisture content of the tobacco for packaging in the cigarette making machine, the moisture content of the tobacco in the finished cigarette can be controlled within a reasonable range, improving the precise control of the tobacco moisture in the finished cigarettes, ensuring that the tobacco moisture is in an optimal state during the production process, thereby improving the production quality indicators of the cigarettes and, in turn, improving the quality of the finished cigarettes.

[0080] On the basis of the above embodiment, in an exemplary embodiment, the method for determining the conversion relationship between the moisture content and the moisture detection information in the above S202 is further refined. Optionally, as shown in FIG. Figure 4 As shown, the following steps may be included:

[0081] S401, determining the actual moisture content of the sample cut tobacco, and obtaining initial detection information obtained by a tobacco moisture sensor performing moisture detection on the sample cut tobacco.

[0082] In this embodiment, based on the type of tobacco conveyed by the cigarette-making machine assembly line in real production scenarios, a portion of tobacco belonging to that type is selected as sample tobacco. Moisture levels are then measured on the sample tobacco using a tobacco moisture sensor of the same type as the one installed on the cigarette-making machine. The moisture test results for the sample tobacco are then obtained as initial test information. Subsequently, the actual moisture content of the sample tobacco is determined through methods such as drying, and a corresponding relationship between the actual moisture content and the initial test information can be established.

[0083] Optionally, the cut tobacco moisture sensor for detecting the initial detection information of the sample cut tobacco is the same sensor as the cut tobacco moisture sensor installed on the cigarette making machine for detecting the target detection information of the to-be-detected cut tobacco.

[0084] S402. Determine the conversion relationship between the moisture content and the moisture detection information according to the corresponding relationship between the true moisture content and the initial detection information.

[0085] By statistically analyzing the initial detection information and the true moisture content of a large number of sample cut tobaccos, a large number of corresponding relationships between the true moisture content and the initial detection information can be obtained. Then, by performing data induction and fitting on the above corresponding relationships, for example, linear fitting, the conversion relationship between the moisture content and the moisture detection information can be obtained.

[0086] Exemplarily, after obtaining the initial detection information and the true moisture content of the sample cut tobacco, the conversion relationship between the moisture content and the moisture detection information can be obtained through normalization, piecewise linearization, and piecewise temperature compensation. Specifically:

[0087] First, use the following formula to perform standardization processing on the initial detection information of the sample cut tobacco to obtain the normalized detection information of the sample cut tobacco.

[0088]

[0089] where x i is the initial detection information of the i-th sample cut tobacco, min(x) is the minimum value of the initial detection information of each sample cut tobacco, max(x) is the maximum value of the initial detection information of each sample cut tobacco, and x i_normalized is the normalized detection information of the i-th sample cut tobacco.

[0090] Then, use the following formula to obtain the initial linear relationship between the moisture content and the normalized detection information through piecewise linearization according to the normalized detection information of the sample cut tobacco and the true moisture content.

[0091]

[0092] where y represents the moisture content, x represents the normalized detection information, D1, D2, and D3 are preset piecewise values, each being a constant, and D1 < D2 < D3, a1, a2, a3, and a4 are the slopes (proportional coefficients) in each piecewise linear relationship, and b1, b2, b3, and b4 are the intercepts (initial values) in each piecewise linear relationship.

[0093] Finally, the following formula is used to perform temperature compensation on the initial linear relationship between the moisture content and the normalized detection information to obtain the final relationship between the moisture content and the normalized detection information, which serves as the conversion relationship between the moisture content and the moisture detection information.

[0094] Y=y+m

[0095] Here, Y represents the moisture content after temperature compensation (target moisture content), and m represents the temperature compensation value.

[0096] As shown below, the value of m is different at different temperature values.

[0097]

[0098] Among them, T represents the temperature value, S1 <S2<S3。

[0099] In this embodiment, the conversion relationship between the moisture content and the moisture detection information is determined by the correspondence between the moisture detection information of the sample tobacco and the actual moisture content, which can improve the accuracy of the obtained conversion relationship and further improve the accuracy of the target moisture content obtained by conversion, thereby improving the accuracy of the moisture monitoring results of the tobacco to be tested, thereby improving the quality of the produced cigarettes.

[0100] It is understandable that due to factors such as temperature, vibration, and aging of circuit components, the signal output by the sensor may have deviations, for example, temperature drift. Therefore, in order to improve the accuracy of the conversion relationship between the moisture content and moisture detection information, and further improve the accuracy of the moisture monitoring results of the tobacco to be tested, in the process of establishing the conversion relationship between moisture content and moisture detection information, for the sample tobacco, the initial detection information of the sample tobacco detected by the tobacco moisture sensor can be calibrated first, for example, the above-mentioned initial detection information can be temperature compensated, pressure compensated, etc.

[0101] Based on this, on the basis of the above embodiments, in an exemplary embodiment, the method for determining the conversion relationship between the moisture content and the moisture detection information in the above S202 is further refined, optionally, as follows: Figure 5 As shown, the following steps may be included:

[0102] S501, determining the actual moisture content of the sample cut tobacco, and obtaining initial detection information obtained by a tobacco moisture sensor performing moisture detection on the sample cut tobacco.

[0103] The specific implementation of the above S501 is the same as that of the above S401 and will not be repeated here.

[0104] S502: Perform a calibration operation on the initial detection information to obtain calibration detection information.

[0105] The calibration operation at least includes temperature compensation.

[0106] As mentioned above, considering that the above initial detection information may have deviations caused by temperature and other reasons, after obtaining the initial detection information obtained by the tobacco moisture sensor for moisture detection of sample tobacco, the above initial detection information can be calibrated first to obtain calibrated detection information.

[0107] Typically, the calibration operation may include at least temperature compensation. Optionally, the calibration operation may also include other compensation operations such as pressure compensation.

[0108] S503: Determine a conversion relationship between the moisture content and the moisture detection information according to the corresponding relationship between the actual moisture content and the calibration detection information.

[0109] After obtaining the above-mentioned calibration detection information, the correspondence between the actual moisture content and the calibration detection information corresponding to the initial detection information can be established based on the correspondence between the actual moisture content and the initial detection information, that is, the correspondence between the actual moisture content and the calibration detection information is obtained. Thus, based on the correspondence between the actual moisture content and the calibration detection information, the conversion relationship between the moisture content and the moisture detection information can be determined.

[0110] The specific implementation of S503 is similar to that of S402, and will not be described in detail here.

[0111] Optionally, after the tobacco moisture sensor installed on the cigarette-making machine detects the target detection information of the tobacco to be tested, the same calibration operation can be performed on the target detection information according to the calibration operation of the above-mentioned initial detection information to obtain calibrated target detection information. Thereby, according to the conversion relationship between the above-mentioned moisture content and the moisture detection information, the calibrated target detection information can be converted into the target moisture content of the tobacco to be tested.

[0112] In this embodiment, by calibrating the initial detection information, the accuracy of the conversion relationship between the moisture content and the moisture detection information can be improved, and then the accuracy of the target moisture content obtained by converting the target detection information can be improved, so as to improve the accuracy of the final moisture monitoring results and improve the quality of the produced cigarettes.

[0113] Based on the above embodiments, in an exemplary embodiment, the determination of the moisture monitoring result in S203 is further refined and may include the following steps:

[0114] 1. When there is a target moisture content that is greater than a preset maximum moisture content and / or less than a preset minimum moisture content, it is determined that the moisture monitoring result of the cut tobacco to be tested is abnormal in moisture content.

[0115] As mentioned above, in cigarette production, the production process requirements for each type of cigarette often dictate that the moisture content of qualified cigarettes must be within a specified moisture content range. Therefore, it is possible to first determine the preset maximum and minimum moisture contents for cigarettes that do not exhibit moisture abnormalities, i.e., the maximum and minimum values of the corresponding moisture content range.

[0116] Based on this, when any of the target moisture contents of the tobacco to be tested is greater than the preset maximum moisture content, the target moisture content of the tobacco to be tested can be considered abnormal, and the tobacco is of unqualified quality. Correspondingly, when any of the target moisture contents of the tobacco to be tested is less than the preset maximum moisture content, the target moisture content of the tobacco to be tested can also be considered abnormal, and the tobacco is of unqualified quality. Therefore, when any of the target moisture contents is greater than the preset maximum moisture content and / or less than the preset minimum moisture content, the moisture monitoring result of the tobacco to be tested is determined to be abnormal.

[0117] For example, Figure 6B The figure below is a schematic diagram of a time series for target moisture content. R is the center line, representing the average moisture content. Points B1 and B2 have exceeded the upper and lower control limits. At this point, the moisture content of the cut tobacco in the cigarette production process is considered out of control, and the finished cigarettes no longer meet the production process requirements. A timely warning is required, prompting operators to immediately stop operations in real time, check for any anomalies, and troubleshoot the problem, saving troubleshooting time and preventing further losses. Therefore, it can be determined that the moisture monitoring result of the cut tobacco under test at this time is abnormal.

[0118] 2. In the absence of a target moisture content greater than the preset maximum moisture content and less than the preset minimum moisture content, determine the moisture content change trend of the tobacco to be tested based on the order of obtaining the target detection information and the corresponding target moisture content, and determine the moisture monitoring result of the tobacco to be tested based on the moisture content change trend, or the numerical relationship between each target moisture content and the preset maximum moisture content and the preset minimum moisture content.

[0119] As mentioned above, if there is no target moisture content greater than the preset maximum moisture content and less than the preset minimum moisture content among the target moisture contents, it can be determined that the moisture content of the current tobacco to be tested is not abnormal. However, considering that under ideal conditions, the moisture content of tobacco should be evenly distributed near the average of the maximum and minimum values of the corresponding moisture content range, therefore, if there is no target moisture content greater than the preset maximum moisture content and less than the preset minimum moisture content among the target moisture contents, it is possible to predict whether the moisture content of the tobacco to be tested may be abnormal in the future by further observing the distribution and change trend of the target moisture content, thereby issuing early warning feedback when the moisture content is not abnormal.

[0120] Based on this, the moisture content variation trend of the tobacco to be tested can be determined based on the order in which each target detection information is acquired and the corresponding target moisture content. This variation trend can be a continuous increase, a continuous decrease, or a dramatic fluctuation. For example, the coordinate points indicated by the target moisture content can be marked in a preset two-dimensional coordinate map according to the order in which the target detection information is monitored. The variation trend of the target moisture content can then be determined based on the positions of multiple consecutive coordinate points. Furthermore, the moisture monitoring results of the tobacco to be tested can be determined based on the moisture content variation trend, or the numerical relationship between each target moisture content and the preset maximum and minimum moisture contents.

[0121] Optionally, the determination of the moisture monitoring result of the cut tobacco to be tested based on the moisture content variation trend or the numerical relationship between each target moisture content and a preset maximum moisture content and a preset minimum moisture content may include any of the following:

[0122] 1) When the moisture content variation trend is such that a first number of consecutive target moisture contents are all greater than or less than an average moisture content, determining that the moisture monitoring result of the cut tobacco to be tested indicates a probability of an abnormal moisture content; wherein the average moisture content is the average of a preset maximum moisture content and a preset minimum moisture content.

[0123] It can be understood that, ideally, the moisture content of the cut tobacco should be evenly distributed around the average value of the maximum and minimum values of the corresponding moisture content range.

[0124] Based on this, if the moisture content variation trend shows a first number of consecutive target moisture contents exceeding the average moisture content, it can be indicated that the target moisture content of the tobacco being tested in the cigarette-making line has a certain upward trend. Therefore, the target moisture content of the tobacco being tested may continue to increase in the future, until it exceeds the preset maximum moisture content. Therefore, if the moisture content variation trend shows a first number of consecutive target moisture contents exceeding the average moisture content, it can be considered that there is a potential trend for the target moisture content of the tobacco being tested to be out of control in the future. Therefore, the moisture monitoring result of the tobacco being tested is determined to have a probability of an abnormal moisture content.

[0125] Accordingly, if the moisture content variation trend shows a first number of consecutive target moisture contents below the average moisture content, this indicates that the target moisture content of the tobacco being tested in the cigarette-making line has a certain downward trend. Consequently, the target moisture content of the tobacco being tested may continue to decrease in the future, until it falls below the preset minimum moisture content. Therefore, if the moisture content variation trend shows a first number of consecutive target moisture contents below the average moisture content, it can be considered that there is a potential trend for the target moisture content of the tobacco being tested to become uncontrollable in the future. Therefore, the moisture monitoring result for the tobacco being tested is determined to indicate a probability of an abnormal moisture content.

[0126] For example, Figure 6C The figure shows a time series diagram of target moisture content. Points C1-C7 appear successively below the center line (R), indicating a downward trend in the target moisture content of the tobacco being tested in the cigarette making machine assembly line, suggesting a potential trend of losing control of the target moisture content of the tobacco being tested in the future.

[0127] The first number may be limited according to actual production requirements, for example, the first number is 7. This application does not make any specific limitation on this.

[0128] 2) When the moisture content variation trend is that the target moisture content increases or decreases successively for a second number of consecutive times, it is determined that the moisture monitoring result of the cut tobacco to be tested is a probability that an abnormal moisture content occurs.

[0129] When the moisture content change trend is that there are a second number of consecutive target moisture contents that increase in sequence, similar to the above-mentioned situation where the first number of consecutive target moisture contents are all greater than the average moisture content, it can be said that the target moisture content of the tobacco to be tested in the cigarette machine assembly line has a certain upward preference. Therefore, the target moisture content of the tobacco to be tested may continue to grow in the future until it exceeds the preset maximum moisture content. It can be considered that there may be a trend of the target moisture content of the tobacco to be tested being out of control in the future. Moreover, compared with the above-mentioned situation where the first number of consecutive target moisture contents are all greater than the average moisture content, when the moisture content change trend is that there are a second number of consecutive target moisture contents that increase in sequence, the possibility of the target moisture content of the tobacco to be tested in the cigarette machine assembly line being out of control is deepened. Relevant personnel should be vigilant in time to prevent the occurrence of real loss of control.

[0130] Correspondingly, when the moisture content change trend is that there are a second number of consecutive target moisture contents that decrease in sequence, similar to the above-mentioned situation where the first number of consecutive target moisture contents are all lower than the average moisture content, it can be indicated that the target moisture content of the tobacco to be tested in the cigarette machine assembly line has a certain downward preference. Therefore, the target moisture content of the tobacco to be tested may continue to decrease in the future until it is lower than the preset maximum moisture content. It can be considered that there may be a trend of the target moisture content of the tobacco to be tested being out of control in the future. Moreover, compared with the above-mentioned situation where the first number of consecutive target moisture contents are all lower than the average moisture content, when the moisture content change trend is that there are a second number of consecutive target moisture contents that decrease in sequence, the possibility of the target moisture content of the tobacco to be tested in the cigarette machine assembly line being out of control is deepened, and relevant personnel should be vigilant in time to prevent the occurrence of real loss of control.

[0131] For example, Figure 6DThe figure shows a time series diagram of target moisture content. Points D1 through D7 increase sequentially, showing an upward trend. This indicates that the target moisture content of the tobacco being tested in the cigarette-making line has shown a tendency to decrease, and there is a potential for the target moisture content of the tobacco being tested to get out of control in the future.

[0132] The second number may be the same as or different from the first number, and the second number may also be limited according to the actual production requirements, for example, the second number is 7. This application does not make any specific limitation on this.

[0133] Optionally, the probability of a moisture content anomaly occurring when a first number of consecutive target moisture contents are all greater than or all less than the average moisture content is lower than the probability of a moisture content anomaly occurring when a second number of consecutive target moisture contents increase or decrease successively.

[0134] 3) When there is a target moisture content whose difference from a preset maximum moisture content and / or a preset minimum moisture content is less than a difference threshold, determining that the moisture monitoring result of the cut tobacco to be tested indicates a probability of abnormal moisture content.

[0135] In the case where there is a target moisture content whose difference from the preset maximum moisture content is less than the difference threshold, and / or a target moisture content whose difference from the preset minimum moisture content is less than the difference threshold, it can be said that there are a lot of boundary data in the target moisture content, that is, there are multiple target moisture contents that fall in an area close to the boundary value of the corresponding moisture content range. In this case, it can be considered that the change trend of the target moisture content is irregular, and there may be a trend of the target moisture content of the tobacco to be tested being out of control in the future. Moreover, compared with the above-mentioned moisture content change trend of the second number of consecutive target moisture contents increasing or decreasing in sequence, in the case where there is a target moisture content whose difference from the preset maximum moisture content and / or the preset minimum moisture content is less than the difference threshold, the possibility of the target moisture content of the tobacco to be tested in the cigarette making machine assembly line being out of control is deepened.

[0136] For example, Figure 6E The figure shows a time series diagram of target moisture content. If points E1-E6 fall in the interval farthest from the center line and close to the UCL or LCL, it means that the target moisture content has an irregular change trend, and there may be a trend that the target moisture content of the tested tobacco will be out of control in the future. Figure 6E As shown, an irregular graph appears in the time series curve diagram of the target moisture content, and the appearance of the irregular graph also represents a trend of increasing rejection rate.

[0137] Optionally, the probability of a moisture content anomaly occurring when there are a second number of consecutive target moisture contents that increase or decrease in sequence is lower than the probability of a moisture content anomaly occurring when there is a target moisture content whose difference from a preset maximum moisture content and / or a preset minimum moisture content is less than a difference threshold.

[0138] In this embodiment, when there is a target moisture content greater than a preset maximum moisture content and / or less than a preset minimum moisture content, the moisture monitoring result of the tobacco to be tested is determined to be abnormal in moisture content; and when there is no target moisture content greater than the preset maximum moisture content and / or less than the preset minimum moisture content, the moisture monitoring result of the tobacco to be tested is not simply determined to be normal in moisture content, but the moisture monitoring result of the tobacco to be tested is further determined based on the moisture content change trend, or the numerical relationship between each target moisture content and the preset maximum moisture content and the preset minimum moisture content. Thus, it is possible to predict whether the tobacco to be tested may subsequently have abnormal moisture content when there is no target moisture content greater than the preset maximum moisture content and / or less than the preset minimum moisture content. Thus, when the moisture content is not abnormal, early warning feedback is issued, thereby promptly prompting the operator to troubleshoot the corresponding problem as soon as possible, saving troubleshooting time and avoiding more losses.

[0139] Based on the above embodiments, in an exemplary embodiment, Figure 7 As shown, the present application provides a method for monitoring moisture in cut tobacco, which may include the following steps:

[0140] S701, using a tobacco moisture sensor installed on the cigarette making machine, the tobacco to be tested transmitted in the cigarette making machine assembly line is tested for moisture according to a preset detection frequency to obtain multiple target detection information.

[0141] S702 , converting each target detection information into a target moisture content of the tobacco to be tested according to a preset conversion relationship between moisture content and moisture detection information.

[0142] S703: Determine the moisture monitoring result of the tobacco to be tested according to each target moisture content.

[0143] The specific implementation of steps S701-S703 is the same as that of steps S201-S203, and will not be repeated here.

[0144] S704: When the moisture monitoring result shows that the moisture content is abnormal or there is a probability of abnormal moisture content, output alarm information corresponding to the moisture monitoring result.

[0145] As mentioned above, in order to issue a warning in time when the moisture content of the tobacco to be tested is abnormal, and to issue early warning feedback when the moisture content of the tobacco to be tested is not abnormal, when the moisture content of the tobacco to be tested is abnormal, the alarm information corresponding to the moisture monitoring result can be output when the moisture monitoring result determined above is abnormal moisture content or there is a probability of abnormal moisture content.

[0146] For example, if the moisture monitoring result indicates an abnormal moisture content, an alarm message indicating the abnormal moisture content will be output by emitting a buzzing sound, flashing a red light, or displaying highlighted text on the display. If the moisture monitoring result indicates that there is a probability of an abnormal moisture content, an alarm message indicating an abnormal moisture content will be output by emitting a buzzing sound, flashing a red light, or displaying highlighted text on the display.

[0147] In this embodiment, by outputting the alarm information corresponding to the moisture monitoring result when the moisture monitoring result shows that the moisture content is abnormal or there is a probability of abnormal moisture content, the operator can be prompted to check whether there is any abnormality in time and troubleshoot the corresponding problem, so as to save troubleshooting time and avoid causing more losses.

[0148] Based on the above embodiments, in an exemplary embodiment, Figure 8 As shown, the present application provides a method for monitoring moisture in cut tobacco, which may include the following steps:

[0149] S801, using a tobacco moisture sensor installed on the cigarette making machine, the tobacco to be tested transmitted in the cigarette making machine assembly line is tested for moisture according to a preset detection frequency to obtain multiple target detection information.

[0150] S802: Convert each target detection information into a target moisture content of the tobacco to be tested according to a preset conversion relationship between moisture content and moisture detection information.

[0151] S803: When there is a target moisture content that is greater than a preset maximum moisture content and / or less than a preset minimum moisture content, determine that the moisture monitoring result of the cut tobacco to be tested is abnormal in moisture content.

[0152] S804 , when there is no target moisture content greater than a preset maximum moisture content and less than a preset minimum moisture content, determine the moisture content variation trend of the tobacco to be tested according to the acquisition order of each target detection information and the corresponding target moisture content.

[0153] S805 , when the moisture content variation trend is that a first number of consecutive target moisture contents are all greater than or less than the average moisture content, determining that the moisture monitoring result of the cut tobacco to be tested is a probability of abnormal moisture content.

[0154] S806 , when the moisture content variation trend is a second number of consecutive target moisture contents increasing or decreasing, determining that the moisture monitoring result of the cut tobacco to be tested is a probability of abnormal moisture content.

[0155] S807 , when there is a target moisture content whose difference from a preset maximum moisture content and / or a preset minimum moisture content is less than a difference threshold, determining that the moisture monitoring result of the cut tobacco to be tested has a probability of abnormal moisture content.

[0156] S808: Output alarm information corresponding to the moisture monitoring result.

[0157] The specific implementation of S801-S808 is the same as that in the above embodiments, and will not be repeated here.

[0158] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0159] Based on the same inventive concept, embodiments of the present application also provide a tobacco moisture monitoring device for implementing the aforementioned tobacco moisture monitoring method. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of one or more tobacco moisture monitoring device embodiments provided below can be found in the limitations of the tobacco moisture monitoring method described above and will not be further elaborated here.

[0160] In an exemplary embodiment, Figure 9 As shown, a tobacco moisture monitoring device is provided, comprising:

[0161] The moisture detection module 910 is used to detect the moisture content of the tobacco to be tested in the cigarette making machine assembly line using a tobacco moisture sensor installed on the cigarette making machine at a preset detection frequency to obtain multiple target detection information;

[0162] The moisture content determination module 920 is used to convert each target detection information into a target moisture content of the tobacco to be tested according to a preset conversion relationship between moisture content and moisture detection information;

[0163] The result determination module 930 is used to determine the moisture monitoring result of the tobacco to be tested according to each target moisture content.

[0164] In an exemplary embodiment, the result determination module 930 includes:

[0165] a first determining unit, which determines that the moisture monitoring result of the cut tobacco to be tested is abnormal in moisture content when there is a target moisture content greater than a preset maximum moisture content and / or less than a preset minimum moisture content;

[0166] The second determination unit determines the moisture content change trend of the tobacco to be tested according to the order of obtaining each target detection information and the corresponding target moisture content, in the absence of a target moisture content greater than the preset maximum moisture content and less than the preset minimum moisture content, and determines the moisture monitoring result of the tobacco to be tested according to the moisture content change trend, or the numerical relationship between each target moisture content and the preset maximum moisture content and the preset minimum moisture content.

[0167] In an exemplary embodiment, the second determining unit is specifically configured to:

[0168] When the moisture content variation trend shows that a first number of consecutive target moisture contents are all greater than or less than an average moisture content, determining that the moisture monitoring result of the cut tobacco to be tested indicates a probability of an abnormal moisture content; wherein the average moisture content is an average of a preset maximum moisture content and a preset minimum moisture content;

[0169] When the moisture content variation trend is that the target moisture content increases or decreases successively for a second number of consecutive times, determining that the moisture monitoring result of the cut tobacco to be tested is that there is a probability that the moisture content is abnormal;

[0170] When there is a target moisture content whose difference from the preset maximum moisture content and / or the preset minimum moisture content is smaller than the difference threshold, it is determined that the moisture monitoring result of the cut tobacco to be tested has a probability of abnormal moisture content.

[0171] In an exemplary embodiment, when a first number of consecutive target moisture contents are all greater than or less than the average moisture content, the probability of a moisture content anomaly occurring is lower than the probability of a second number of consecutive target moisture contents increasing or decreasing in sequence.

[0172] Furthermore, the probability of a water content anomaly occurring when there are a second number of consecutive target water content increases or decreases in sequence is lower than the probability of a water content anomaly occurring when there is a target water content whose difference from a preset maximum water content and / or a preset minimum water content is less than a difference threshold.

[0173] In an exemplary embodiment, the tobacco moisture monitoring device further includes:

[0174] The alarm module is used to output alarm information corresponding to the moisture monitoring result when the moisture monitoring result shows that the moisture content is abnormal or there is a probability of abnormal moisture content.

[0175] In an exemplary embodiment, the tobacco moisture monitoring device further includes:

[0176] An information acquisition module is used to determine the actual moisture content of the sample tobacco and obtain initial detection information obtained by the tobacco moisture sensor from detecting the moisture content of the sample tobacco;

[0177] The relationship determination module is used to determine the conversion relationship between the moisture content and the moisture detection information based on the corresponding relationship between the actual moisture content and the initial detection information.

[0178] In an exemplary embodiment, the relationship determination module is specifically configured to:

[0179] Performing a calibration operation on the initial detection information to obtain calibrated detection information; wherein the calibration operation at least includes temperature compensation;

[0180] According to the corresponding relationship between the actual moisture content and the calibration test information, the conversion relationship between the moisture content and the moisture test information is determined.

[0181] Each module in the above-mentioned tobacco moisture monitoring device can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in hardware form, or can be stored in a computer device memory in software form, so that the processor can call and execute the corresponding operations of each module.

[0182] In an exemplary embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as shown in FIG. Figure 10As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O) and a communication interface. The processor, memory and input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the computer device is used to store data such as the conversion relationship between moisture content and moisture detection information. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for monitoring the moisture content of tobacco is implemented.

[0183] Those skilled in the art will understand that Figure 10 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0184] In an exemplary embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0185] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0186] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0187] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile memory and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processor involved in the various embodiments provided herein may be, but are not limited to, a general-purpose processor, a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processor (DSP), a programmable logic unit (PLC), a data processing logic unit based on quantum computing, an artificial intelligence (AI) processor, and the like.

[0188] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0189] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A method for monitoring moisture in cut tobacco, characterized in that: The method comprises: The tobacco moisture sensor installed on the cigarette making machine detects the moisture content of the tobacco to be tested in the cigarette making machine assembly line according to the preset detection frequency, and obtains multiple target detection information; According to the preset conversion relationship between moisture content and moisture detection information, each target detection information is converted into the target moisture content of the tobacco to be tested; The moisture monitoring result of the tobacco to be tested is determined according to each target moisture content.

2. The method according to claim 1, characterized in that Determining the moisture monitoring result of the tobacco to be tested according to each target moisture content includes: In the case where there is a target moisture content greater than a preset maximum moisture content and / or less than a preset minimum moisture content, determining that the moisture monitoring result of the cut tobacco to be tested is abnormal in moisture content; In the absence of a target moisture content greater than the preset maximum moisture content and less than the preset minimum moisture content, the moisture content change trend of the tobacco to be tested is determined based on the order of obtaining each target detection information and the corresponding target moisture content, and the moisture monitoring result of the tobacco to be tested is determined based on the moisture content change trend, or the numerical relationship between each target moisture content and the preset maximum moisture content and the preset minimum moisture content.

3. The method according to claim 2, characterized in that Determining the moisture monitoring result of the cut tobacco to be tested based on the moisture content variation trend, or the numerical relationship between each target moisture content and the preset maximum moisture content and the preset minimum moisture content, includes any one of the following: When the moisture content variation trend is that a first number of consecutive target moisture contents are all greater than or less than an average moisture content, determining that the moisture monitoring result of the tested cut tobacco is a probability of having an abnormal moisture content; wherein the average moisture content is an average of the preset maximum moisture content and the preset minimum moisture content; When the moisture content variation trend is that the target moisture content increases or decreases successively for a second number of consecutive times, determining that the moisture monitoring result of the cut tobacco to be tested is that there is a probability that the moisture content is abnormal; When there is a target moisture content whose difference from the preset maximum moisture content and / or the preset minimum moisture content is less than a difference threshold, it is determined that the moisture monitoring result of the tested cut tobacco has a probability of abnormal moisture content.

4. The method according to claim 3, characterized in that The probability of a moisture content anomaly occurring when the first number of consecutive target moisture contents are all greater than or less than the average moisture content is less than the probability of a moisture content anomaly occurring when the second number of consecutive target moisture contents increase or decrease in sequence; Furthermore, the probability of a water content anomaly occurring when there are a second number of consecutive target water contents that increase or decrease in sequence is lower than the probability of a water content anomaly occurring when there is a target water content whose difference from the preset maximum water content and / or the preset minimum water content is less than a difference threshold.

5. The method according to claim 3, characterized in that The method further comprises: When the moisture monitoring result indicates that the moisture content is abnormal or there is a probability that the moisture content is abnormal, alarm information corresponding to the moisture monitoring result is output.

6. The method according to claim 1, characterized in that The conversion relationship is determined in the following way: Determining the true moisture content of the sample cut tobacco and obtaining initial detection information obtained by the cut tobacco moisture sensor performing moisture detection on the sample cut tobacco; According to the corresponding relationship between the actual moisture content and the initial detection information, a conversion relationship between the moisture content and the moisture detection information is determined.

7. The method according to claim 6, characterized in that The determining of the conversion relationship between the moisture content and the moisture detection information according to the correspondence between the actual moisture content and the initial detection information includes: Performing a calibration operation on the initial detection information to obtain calibrated detection information; wherein the calibration operation at least includes temperature compensation; According to the corresponding relationship between the actual moisture content and the calibration detection information, a conversion relationship between the moisture content and the moisture detection information is determined.

8. The method according to any one of claims 1 to 7, characterized in that The tobacco moisture sensor is a microwave sensor and is mounted on the back plate of the metering slot of the cigarette making machine. The tobacco to be tested is located in the metering slot.

9. A tobacco moisture monitoring device, characterized in that: The device comprises: The moisture detection module is used to detect the moisture content of the tobacco to be tested in the cigarette making machine assembly line through the tobacco moisture sensor installed on the cigarette making machine at a preset detection frequency to obtain multiple target detection information; a moisture content determination module, configured to convert each target detection information into a target moisture content of the tobacco to be tested according to a preset conversion relationship between moisture content and moisture detection information; The result determination module is used to determine the moisture monitoring result of the tobacco to be tested according to each target moisture content.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

Images