Tobacco leaf conveying control method, device, equipment, medium and product

Abstract

The embodiment of the invention provides a tobacco leaf conveying control method and device, equipment, a medium and a product, and the method comprises the steps that in the process that tobacco leaves in a feeding machine are conveyed to a quantity limiting pipe based on a conveying belt according to a preset reference speed, the actual tobacco leaf volume located on the conveying belt and the actual height of the quantity limiting pipe are obtained; according to the actual tobacco leaf volume and the preset volume reference value, the target speed value of the conveying belt is determined, and according to the actual height information and the preset height information of the limiting pipe, a first adjusting coefficient used for adjusting the feeding machine is determined; determining a second adjustment coefficient according to the target speed value and a preset reference speed; and adjusting the speed of the feeder bottom belt frequency converter according to the first adjustment coefficient and the second adjustment coefficient. According to the technical scheme, the target speed value of the conveying belt is determined, the speed of the feeder bottom belt frequency converter is adjusted, it is ensured that tobacco leaves are conveyed more smoothly on a production line, the bottleneck and stagnation are reduced, and therefore the control precision is improved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the field of tobacco machinery, and particularly to a method, device, equipment, medium and product for controlling the conveyance of tobacco leaves. Background Art

[0002] In the silk reeling workshop of a cigarette factory, a feeder is responsible for transporting tobacco leaves to the next process. If the real-time speed adjustment of the feeder is unreasonable, it may lead to material accumulation or insufficient supply in the subsequent process, affecting the continuity and stability of the overall production rhythm, and may also affect the quality of cut tobacco. Therefore, during the process of the feeder dynamically transporting tobacco leaves through a conveyor belt, more and more attention is paid to adjusting the speed of the bottom belt frequency converter of the feeder.

[0003] Currently, the main method for adjusting the speed of the bottom belt frequency converter of the feeder is: after obtaining the actual height value of a limited pipe connected to the end of the conveyor belt and the preset height value of the limited pipe, a programmable logic controller is used to control the speed of the bottom belt frequency converter of the feeder. After the speed of the bottom belt frequency converter of the feeder is adjusted, the falling rate of tobacco leaves from the feeder to the conveyor belt is changed. However, a single proportional-integral-derivative control parameter is difficult to cover all working conditions, resulting in a problem of decreased control accuracy of the speed of the bottom belt frequency converter of the feeder, and the adjustment effect of the speed of the bottom belt frequency converter of the feeder is unstable. Summary of the Invention

[0004] The embodiments of the present disclosure provide a method, device, equipment, medium and product for controlling the conveyance of tobacco leaves, so as to achieve the effect of improving the control accuracy of the speed of the bottom belt frequency converter of the feeder.

[0005] In a first aspect, the embodiments of the present disclosure provide a method for controlling the conveyance of tobacco leaves, the method comprising:

[0006] During the process of conveying the tobacco leaves in the feeder to the limited pipe based on the conveyor belt according to a preset reference speed, obtaining the actual volume of the tobacco leaves located on the conveyor belt and the actual height of the limited pipe;

[0007] According to the actual volume of the tobacco leaves and a preset volume reference value, determining a target speed value of the conveyor belt, and according to the actual height information and preset height information of the limited pipe, determining a first adjustment coefficient for adjusting the feeder;

[0008] According to the target speed value and the preset reference speed, determining a second adjustment coefficient;

[0009] Adjusting the speed of the bottom belt frequency converter of the feeder according to the first adjustment coefficient and the second adjustment coefficient.

[0010] In a second aspect, the embodiments of the present invention further provide a device for controlling the conveyance of tobacco leaves, the device comprising:

[0011] A data acquisition module, configured to acquire the actual volume of tobacco leaves located on the conveyor belt and the actual height of the metering pipe during the process of conveying the tobacco leaves in the feeder to the metering pipe based on the conveyor belt according to a preset reference speed;

[0012] A first adjustment coefficient determination module, configured to determine a target speed value of the conveyor belt according to the actual volume of tobacco leaves and a preset volume reference value, and determine a first adjustment coefficient for adjusting the feeder according to the actual height information and preset height information of the metering pipe;

[0013] A second adjustment coefficient determination module, configured to determine a second adjustment coefficient according to the target speed value and the preset reference speed;

[0014] A speed adjustment module, configured to adjust the speed of the bottom belt frequency converter of the feeder according to the first adjustment coefficient and the second adjustment coefficient.

[0015] In a third aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:

[0016] One or more processors;

[0017] A storage device, configured to store one or more programs,

[0018] When the one or more programs are executed by the one or more processors, the one or more processors implement the tobacco leaf conveying control method according to any one of the embodiments of the present invention.

[0019] In a fourth aspect, an embodiment of the present invention further provides a storage medium containing computer-executable instructions, where the computer-executable instructions are used to execute the tobacco leaf conveying control method according to any one of the embodiments of the present invention when executed by a computer processor.

[0020] In a fifth aspect, an embodiment of the present invention further provides a computer program product, including a computer program, characterized in that the computer program implements the tobacco leaf conveying control method according to any one of the embodiments of the present invention when executed by a processor.

[0021] In the technical solution of the embodiments of the present disclosure, first, during the process of conveying tobacco leaves in a feeder to a limited pipe based on a conveyor belt according to a preset reference speed, the actual volume of tobacco leaves located on the conveyor belt and the actual height of the limited pipe are obtained. Then, according to the actual volume of tobacco leaves and a preset volume reference value, a target speed value of the conveyor belt is determined, and according to the actual height information of the limited pipe and the preset height information, a first adjustment coefficient for adjusting the feeder is determined. Further, according to the target speed value and the preset reference speed, a second adjustment coefficient is determined. Finally, the speed of the bottom belt frequency converter of the feeder is adjusted according to the first adjustment coefficient and the second adjustment coefficient. This solves the problem in the prior art that after obtaining the actual height value of the limited pipe connected to the end of the conveyor belt and the preset height value of the limited pipe, when using a programmable logic controller to control the speed of the bottom belt frequency converter of the feeder, it is difficult to cover all working conditions, resulting in a decrease in the control accuracy of the speed of the bottom belt frequency converter of the feeder and an unstable adjustment effect of the speed of the bottom belt frequency converter of the feeder. On the basis of the prior art, in the embodiments of the present invention, according to the actual volume of tobacco leaves on the conveyor belt and the preset volume reference value, a target speed value of the conveyor belt is determined. Then, based on the target speed value of the conveyor belt and the preset reference speed of the conveyor belt, after determining the adjustment coefficient, the speed of the bottom belt frequency converter of the feeder is adjusted using the adjustment coefficient, improving the control accuracy, making the adjustment effect of the speed of the bottom belt frequency converter of the feeder more stable, ensuring smoother conveyance of tobacco leaves on the production line, and reducing bottlenecks and stagnation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the introduced drawings are only the drawings of a part of the embodiments to be described by the present invention, rather than all the drawings. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a schematic flowchart of a method for controlling tobacco leaf conveyance provided by an embodiment of the present disclosure;

[0024] Figure 2 is a control flowchart of a method for controlling tobacco leaf conveyance provided by an embodiment of the present disclosure;

[0025] Figure 3 is a schematic flowchart of another method for controlling tobacco leaf conveyance provided by an embodiment of the present disclosure;

[0026] Figure 4 is a schematic flowchart of a process for tobacco leaf production provided by an embodiment of the present disclosure;

[0027] Figure 5 is a schematic structural diagram of a device for controlling tobacco leaf conveyance provided by an embodiment of the present disclosure;

[0028] Figure 6 A structural schematic diagram of an electronic device provided by an embodiment of the present disclosure. Specific embodiments

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the convenience of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0030] Before introducing the technical solution provided by the embodiment of the present disclosure, an exemplary description of the application scenario can be given first. The technical solution provided by the embodiment of the present disclosure can be applied in a tobacco processing factory or a similar production line, in a scenario where an adjustment control signal is generated by combining the height information of the limit pipe and the transmission speed information of the conveyor belt, and the speed of the bottom belt frequency converter of the feeder is controlled in real time. For example, real-time data can be collected through a height sensor of the limit pipe, and the actual volume of tobacco leaves on the conveyor belt can be obtained, and these data are input into the PLC controller. The PLC processes the sensor information using the PID control algorithm to generate an appropriate adjustment signal, and then adjusts the speed of the bottom belt frequency converter of the feeder. It should be noted that high-definition cameras can be installed at key positions of the tobacco leaf conveyor belt to collect images of the tobacco leaves on the conveyor belt in real time at a certain frequency. The volume of the tobacco leaves on the conveyor belt can be determined based on the obtained tobacco leaf images. The transmission speed information of the conveyor belt is determined based on the volume of the tobacco leaves on the conveyor belt and a preset volume reference value. It should also be noted that the order of the equipment on the production line is the feeder, the conveyor belt for transporting the tobacco leaves in the feeder, and the limit pipe to which the conveyor belt transports the tobacco leaves. The feeder, the conveyor belt, and the limit pipe work together to form a closed-loop control network in the tobacco leaf conveying system, ensuring that the tobacco leaves are transported from one process to another in a stable and efficient manner. Based on the technical solution of the embodiment of the present disclosure, not only the real-time height of the limit pipe is used to control the speed of the bottom belt frequency converter of the feeder, but also the speed of the conveyor belt is controlled according to the real-time volume of the tobacco leaves on the conveyor belt, and then the speed of the bottom belt frequency converter of the feeder is adjusted based on the speed value of the conveyor belt, making the adjustment effect of the speed of the bottom belt frequency converter of the feeder more stable and ensuring smoother transportation of the tobacco leaves on the production line.

[0031] Embodiment 1

[0032] Figure 1It is a schematic flowchart of a tobacco leaf conveying control method provided by an embodiment of the present disclosure. The embodiment of the present disclosure is applicable to the situation where an adjustment control signal is generated by combining the height information of a limiting pipe and the transmission speed information of a conveyor belt, and the speed of the bottom belt frequency converter of a feeder is controlled in real time. This method can be executed by a tobacco leaf conveying control device, which can be implemented in the form of software and / or hardware. The hardware can be an electronic device of a mobile terminal, and the electronic device can execute the tobacco leaf conveying control method provided by this technical solution.

[0033] As Figure 1 shown, the method includes:

[0034] S110. During the process of conveying the tobacco leaves in the feeder to the limiting pipe based on the conveyor belt according to a preset reference speed, obtain the actual volume of the tobacco leaves located on the conveyor belt and the actual height of the limiting pipe.

[0035] Among them, the preset reference speed is the operating speed of the conveyor belt set by a control system such as a PLC before the conveyor belt system is started, considering the specific tobacco leaf production process requirements and conveyor belt equipment parameters. The preset reference speed is used as a reference standard for system operation to adjust and maintain the stability of the conveying process. It should be noted that factors such as the humidity, thickness, cutting method of the tobacco leaves, the wear degree of the conveyor belt, the performance of the drive motor, the temperature, humidity, and dust in the environment, etc., will all affect the setting of the conveyor belt preset reference speed.

[0036] It should be noted that the actual volume of the tobacco leaves refers to the volume of the tobacco leaves carried on the conveyor belt at any moment. By monitoring the volume of the tobacco leaves on the conveyor belt, the load situation of the conveyor belt can be understood, so as to effectively control the production process; the actual height of the limiting pipe refers to the actual vertical height of the pipe or pipe fitting used to control and limit the tobacco leaf conveying volume in the tobacco leaf conveying system. The limiting pipe is usually located at the end of the conveyor belt, aiming to adjust the flow rate of the tobacco leaves to ensure the normal operation of downstream equipment (such as a belt scale). By adjusting the height of the limiting pipe, the speed and quantity of the tobacco leaves conveyed from the conveyor belt to the next process can be accurately controlled, avoiding overage or shortage.

[0037] In this embodiment, based on an image acquisition device deployed at a position associated with the conveyor belt, an image of the tobacco leaves located on the conveyor belt is acquired, and the image of the tobacco leaves is analyzed and processed to determine the actual tobacco leaf volume information; based on a sensor deployed at a position associated with the limiting pipe, the actual height information of the tobacco leaves in the limiting pipe is acquired.

[0038] Among them, the image acquisition device can be a high-definition camera, an infrared camera or other devices. It should be noted that the position of the image acquisition device on the conveyor belt is the key to the image acquisition effect. The camera can be deployed on the side or top of the conveyor belt to collect the tobacco leaf images located on the conveyor belt; the camera can also be deployed at the key turning points or bifurcation points of the conveyor belt to ensure the uniformity and smoothness of the tobacco leaves during the conveying process. The position and focal length of the image acquisition device should ensure the clarity of the tobacco leaf images and avoid image blurring or defocusing. Too far a distance may cause image blurring, and too close a distance may cause some tobacco leaves to be blocked. The image acquisition device should also ensure good lighting conditions in the working environment of the conveyor belt to avoid shadows or reflections affecting image acquisition. Optionally, the camera may be tilted at a certain angle and shoot the conveyor belt obliquely to avoid the problem of shadows when directly shooting the conveyor belt. The frequency of the image acquisition device usually needs to be determined according to the speed of the historical conveyor belt and historical experience values. Reasonably setting the camera frequency helps to obtain clear and useful image data. If the size of the tobacco leaves is large or the morphological changes are rapid, a higher acquisition frequency may be required to obtain more details to help the image processing system perform more accurate analysis. A higher frame rate helps to capture the instantaneous changes during the rapid movement of the tobacco leaves. If the system needs to perform a detailed analysis of the images, such as accurately measuring the volume of the tobacco leaves or performing quality control, a higher frame rate can provide more image data to help improve the accuracy of the analysis. A lower frame rate may cause image distortion or loss of details, affecting the final analysis result.

[0039] It should be noted that after collecting the tobacco leaf images located on the conveyor belt, it is necessary to analyze and process the tobacco leaf images to determine the actual tobacco leaf volume information. For the collected tobacco leaf images located on the conveyor belt, first, the tobacco leaf images can be converted to grayscale images through grayscale processing. Specifically, the three channels of the color image can be linearly combined with certain weights using the weighted average method to obtain a single-channel grayscale value representing the brightness information. Then, the grayscale image can be filtered based on a two-dimensional Gaussian filter to obtain a filtered image. Specifically, a filter window can be selected. The size of the filter window is usually a square matrix, and the size of the filter is closely related to σ. After selecting the filter window, a convolution operation is performed. That is, for each pixel in the image, the filter window covers the neighborhood around the pixel, and a weighted average is performed on all the pixels in the neighborhood. The weights of the weighted average come from the Gaussian function, that is, the weight of each pixel in the image is inversely proportional to its distance from the center point. This process generates a new pixel value, which represents the smoothing result at the corresponding position in the image. The Gaussian filter effectively removes these high-frequency components by performing a weighted average on each pixel, making the image smooth and blurred. Further, the filtered image can be processed based on the Sobel operator to obtain the horizontal grayscale and vertical grayscale of the first image. Furthermore, based on the horizontal grayscale and vertical grayscale of the same pixel point in the wave image, the gradient magnitude and gradient direction corresponding to each pixel point in the filtered image are determined. Specifically, based on two common convolution kernels in the Sobel operator, the horizontal grayscale and vertical grayscale in the filtered image are calculated. After calculating the horizontal grayscale and vertical grayscale in the filtered image, the corresponding gradient magnitude of the filtered image is calculated based on the gradient magnitude calculation formula corresponding to each pixel point in the filtered image, and the corresponding gradient direction of the filtered image is calculated based on the gradient direction calculation formula corresponding to each pixel point in the filtered image. The gradient direction represents the direction of the brightness change of a certain pixel point in the image, and usually corresponds to the direction of the edge in the image. The gradient direction is commonly represented by a range of 0 to 360 degrees, or -180 to 180 degrees. Based on the grayscale in the horizontal and vertical directions, the gradient magnitude and gradient direction of each pixel are calculated, and the edge information in the image is further analyzed.

[0040] It should be noted that after calculating the gradient magnitude and gradient direction, each pixel point in the filtered image is processed to obtain an image including at least one connected component. Specifically, according to the gradient magnitude map and the gradient direction map, neighboring pixels can be searched along the positive and negative gradient directions. Exemplarily, if the direction is exactly 0°, 45°, or 90°, etc., it can be directly corresponding to the left, right, upper diagonal, lower diagonal, up, or down integer positions. If it is not the above integer position direction, methods such as interpolation can be used to find the gradient magnitude of the neighboring pixels. The gradient direction can be used to determine whether the edge of each pixel point is locally maximum, that is, comparing the gradient magnitude of the current pixel with that of these two neighboring pixels. When performing binary processing on the filtered image according to the gradient magnitude, the strong edge part in the filtered image is retained, and the weaker edges are suppressed. Specifically, if the gradient magnitude of the current pixel is greater than the gradient magnitudes of the two pixels along the positive and negative directions, it indicates that the gradient magnitude of the current pixel is locally maximum, and this gradient magnitude is retained, indicating that the current pixel may be an edge pixel; otherwise, the gradient magnitude of the current pixel can be suppressed to 0, indicating that the corresponding position of the current pixel may be a noise position or the side position of the edge. After the above processing, an image including at least one connected component can be obtained. Then, the image of the largest connected component in the image is selected, and the edge erosion processing of the connected component is performed to obtain the updated image of the largest connected component. Specifically, the erosion operation can scan the image through a structuring element. The structuring element is usually a small matrix. When the structuring element completely matches the pixel in the image, the pixel value remains unchanged; otherwise, the pixel value will be modified to the background value, which helps to remove unnecessary details or noise, especially very effective when noise needs to be removed or the area needs to be refined. Thus, the final processed tobacco leaf image is obtained.

[0041] It should be noted that based on the final tobacco leaf image, the height information of the tobacco leaf, the transportation speed of the conveyor belt, and the width of the conveyor belt, the actual tobacco leaf volume information on the conveyor belt can be determined. Specifically, for the tobacco leaf material continuously and approximately evenly distributed on the belt, the pixel ratio can be converted into the actual covered area, and then the area can be converted into volume to determine the tobacco leaf volume information on the conveyor belt. First, convert the pixel ratio into the actual covered area. In a sampling period, the conveyor belt moves forward a distance Δx. If the sampling time is Δt and the speed of the conveyor belt is v, then Δx = vΔt. The area of the top view surface of the conveyor belt can be obtained by multiplying this distance Δx by the width d of the conveyor belt, that is, the conveyor belt surface area = d * Δx = d * vΔt. Then this area can be regarded as the number N of pixel points of the belt in the final tobacco leaf image, and the number of pixels occupied by the tobacco leaf is the first pixel number n1. The area of the top view surface of the conveyor belt can be approximated by the pixel point number ratio information. That is Then, convert the area into volume. If the height information of the tobacco leaf is h, then the tobacco leaf volume in this sampling period is approximately: In the sampling period To obtain the unit time, that is, the actual tobacco leaf volume information on the conveyor belt, divide the tobacco leaf volume within the sampling period by the sampling time Δt. That is, the actual Therefore, based on the final tobacco leaf image, the height information of the tobacco leaves, the transportation speed of the conveyor belt, and the width of the conveyor belt, the actual tobacco leaf volume information on the conveyor belt can be determined.

[0042] Among them, the sensor can be an ultrasonic sensor. The ultrasonic sensor measures the time required for the sound wave to travel from the sensor to the surface of the tobacco leaf and then reflect back to the sensor by emitting ultrasonic pulses, thereby calculating the actual height information of the tobacco leaves in the measuring tube; the sensor can be a laser rangefinder. The laser rangefinder measures the reflection time or phase difference of the laser from the sensor to the surface of the tobacco leaf by emitting a laser beam, thereby calculating the actual height information of the tobacco leaves in the measuring tube; the sensor can also be a photoelectric sensor. The photoelectric sensor uses infrared or visible light to calculate the actual height information of the tobacco leaves in the measuring tube by detecting changes in the light signal blocked or reflected by the tobacco leaves.

[0043] It should be noted that the deployment position of the sensor can be above the side of the measuring tube. Based on this position, the height of the tobacco leaf stack can be directly measured; the deployment position of the sensor can be at the entrance of the measuring tube. Deploying a sensor at the entrance of the measuring tube can monitor the amount of tobacco leaves entering the measuring tube; the deployment position of the sensor can also be a fixed position on the inner wall of the measuring tube. Multiple fixed height points can be selected on the inner wall of the measuring tube to deploy multiple sensors, thereby obtaining more comprehensive actual height information of the tobacco leaves in the measuring tube. Optionally, adjust the appropriate measurement angle of the sensor according to the sensor type. For example, the ultrasonic sensor should be perpendicular to the surface of the tobacco leaf stack to reduce reflection errors; the laser rangefinder can be set at a certain inclination angle to cover the maximum measurement area. Also, in the tobacco leaf production environment, the sensor is easily affected by dust and humidity, and a protective cover or sealing device should be used to ensure the cleanliness and stability of the sensor working environment.

[0044] It should be noted that the sampling frequency of the sensor (such as 10 times per second) can be set according to the historical operating speed of the production line, the historical tobacco leaf conveying rate, and historical experience values to ensure real-time monitoring. The sensor data can be transmitted to the PLC through industrial Ethernet or other stable communication methods. Optionally, the collected sensor signals need to be filtered to remove noise and interference and improve the accuracy of the data. During the data processing process, the original data of the sensor needs to be converted into the actual height information of the tobacco leaves in the measuring tube. For example, the ultrasonic sensor calculates the actual height information of the tobacco leaves in the measuring tube through the time difference, and the laser rangefinder calculates the actual height information of the tobacco leaves in the measuring tube through the reflection time or phase difference. A normal operating range for the actual height information of the tobacco leaves in the measuring tube is established to detect outliers in the data, such as extremely high or low tobacco leaf stacking heights, and an alarm signal is sent in a timely manner. Optionally, if multiple sensors are deployed inside the measuring tube, data fusion technology can be used to integrate multiple data sources to improve the measurement accuracy and stability.

[0045] Specifically, in the process of tobacco leaf production and processing, the feeder, conveyor belt, and measuring tube form a closely collaborative conveying system. The feeder is the starting device of the entire conveying system and is responsible for orderly conveying tobacco leaves from the storage container or raw material warehouse to the conveyor belt. The conveyor belt, as the core of the conveying system, connects the feeder and the measuring tube and is responsible for conveying tobacco leaves from the feeder to the measuring tube. The measuring tube is located at the end of the conveyor belt and is responsible for adjusting and restricting the conveying volume of tobacco leaves to ensure that the downstream equipment can receive tobacco leaves stably. During the process of tobacco leaf production and processing, the feeder and the conveyor belt operate at certain operating speeds respectively to ensure the stability and controllability of the conveying process. After the production line is started, the conveyor belt conveys the tobacco leaves in the feeder to the measuring tube according to the preset reference speed. The final tobacco leaf image is obtained after a series of processes on the tobacco leaf image captured by the image acquisition device. Based on the final tobacco leaf image, the height information of the tobacco leaves, the transportation speed of the conveyor belt, and the width of the conveyor belt, the actual tobacco leaf volume information on the conveyor belt is determined. And, the actual height of the measuring tube is obtained based on the sensor.

[0046] S120. Determine the target speed value of the conveyor belt according to the actual tobacco leaf volume and the preset volume reference value, and determine the first adjustment coefficient for adjusting the feeder according to the actual height information and the preset height information of the measuring tube.

[0047] Among them, the preset volume reference value is the standard volume that the material should reach or maintain per unit time, which is set in advance during the tobacco leaf production and logistics processes to ensure the stability, efficiency, and product quality of the conveying system. Specifically in the conveyor belt system, the preset volume reference value refers to the volume of tobacco leaves that the conveyor belt should transport per unit time, usually expressed in cubic meters per hour or other appropriate volume units. The target speed value is to adjust the speed of the conveyor belt to match the preset volume reference value based on the current actual tobacco leaf volume, the preset volume reference value, and the current speed of the current conveyor belt. It should be noted that after obtaining the actual tobacco leaf volume and the preset volume reference value, the adjustment factor for calculating the target speed value of the conveyor belt can be determined according to the actual tobacco leaf volume and the preset volume reference value. Optionally, the ratio of the actual tobacco leaf volume to the preset volume reference value can be used as the adjustment factor for calculating the target speed value of the conveyor belt. Then, the current speed of the conveyor belt can be obtained using a speed sensor. The product of the current speed of the conveyor belt and the adjustment factor of the target speed value of the conveyor belt can be used as the target speed value of the conveyor belt. If the obtained actual tobacco leaf volume is greater than the preset volume reference value, then the calculated target speed value of the conveyor belt is greater than the current speed of the conveyor belt, that is, it may be necessary to increase the speed of the conveyor belt to handle more tobacco leaves; if the obtained actual tobacco leaf volume is less than the preset volume reference value, then the calculated target speed value of the conveyor belt is less than the current speed of the conveyor belt, that is, it may be necessary to reduce the speed of the conveyor belt to avoid problems such as a decline in product quality or other issues caused by the excessive speed of the conveyor belt. After determining the target speed value of the conveyor belt, this value is set as the new speed of the conveyor belt. Moreover, it is necessary to continuously monitor the actual tobacco leaf volume and dynamically adjust the target speed value of the conveyor belt according to the actual tobacco leaf volume and the preset volume reference value to ensure the stability and efficiency of the production process.

[0048] Among them, the preset height information of the limited tube refers to the standard or ideal height of the material in the limited tube that is set in advance according to process requirements, material characteristics, and production needs during the design or operation of the feeding system. Moreover, the preset height information of the limited tube is usually used to control and monitor the amount of tobacco leaf material to ensure the stability and accuracy of material supply. It should be noted that characteristics such as the density, particle size, and humidity of tobacco leaves will affect their fluidity in the limited tube, and these factors need to be considered when setting the preset height information of the limited tube to ensure that the tobacco leaves can flow smoothly without clogging or overflowing. The first adjustment coefficient is a proportional coefficient used in the feedback control system to adjust the speed of the bottom belt frequency converter of the feeder based on the difference between the actual height information and the preset height information of the limited tube. The difference between the actual height information and the preset height information of the limited tube determines the extent to which the speed of the bottom belt frequency converter of the feeder needs to be adjusted to ensure that the material supply meets the expected standard. It should be noted that the first adjustment coefficient is usually based on simple proportional control, that is, the first adjustment coefficient is proportional to the error between the actual height information and the preset height information of the limited tube. Optionally, the first adjustment coefficient can be equal to the proportional gain multiplied by the error value between the actual height information and the preset height information of the limited tube. The appropriate proportional gain can be determined through the debugging of the conveying system or by referring to process parameters. Avoid being too large to cause system oscillation and too small to cause slow response. Dynamically adjust the first adjustment coefficient according to the actual operating conditions to make the conveying system operate more stably.

[0049] Specifically, as Figure 2 shown, based on materials such as images captured by the image acquisition device, determine the actual volume of tobacco leaves, and then based on the preset volume reference value and the current speed of the conveyor belt, determine the target speed value of the conveyor belt. After obtaining the actual height information of the limited tube through devices such as sensors, calculate the first adjustment coefficient used to adjust the speed of the bottom belt frequency converter of the feeder according to the actual height information of the limited tube, the preset height information of the limited tube, and the proportional gain. It can effectively adjust the target speed value of the conveyor belt and the first adjustment coefficient of the feeder according to the actual production data, ensuring the high efficiency, stability of the production process, and the stability of product quality.

[0050] Exemplarily, assume that the current actual tobacco leaf volume is determined to be 120 cubic meters per hour based on materials such as images captured by an image acquisition device, the preset volume reference value is 100 cubic meters per hour, and the current conveyor belt speed is 2 meters per minute. Then the adjustment factor is equal to the ratio of 120 to 100, that is, the adjustment factor is equal to 1.2. Based on the product of the adjustment factor and the current conveyor belt speed, the target speed value of the conveyor belt is determined. That is, in order to process the preset tobacco leaf volume of 100 cubic meters per hour, the speed of the conveyor belt should be adjusted to 2.4 meters per minute. Assume that the actual height information of the limiting pipe obtained by the sensor is 10 cm, the preset height information of the limiting pipe is 8 cm, and the value of the proportional gain is 0.5. At this time, the error, that is, the difference between the actual height information of the limiting pipe obtained by the sensor and the preset height information of the limiting pipe is 2 cm. Multiplying the error by the proportional gain gives 1, which is the first adjustment coefficient used to adjust the speed of the bottom belt frequency converter of the feeder.

[0051] S130. Determine a second adjustment coefficient according to the target speed value and the preset reference speed.

[0052] Wherein, the second adjustment coefficient is a proportional coefficient in the feedback control system for adjusting the speed of the bottom belt frequency converter of the feeder based on the difference between the target speed value and the preset reference speed. Based on the second adjustment coefficient, the speed of the bottom belt frequency converter of the feeder is further optimized. The second adjustment coefficient plays a role in finely adjusting the speed of the bottom belt frequency converter of the feeder in the control system, ensuring that the feeder can accurately reach or maintain the predetermined operating speed, thereby meeting production requirements and optimizing production efficiency.

[0053] In this embodiment, based on at least one historical tobacco leaf image collected in the previous batch, the corresponding historical volume information of each tobacco leaf image is determined, and according to at least one historical volume information, the preset volume reference value is determined; the preset volume reference value is configured for the conveyor belt to determine the second adjustment coefficient based on the preset volume reference value.

[0054] Wherein, the historical tobacco leaf image refers to an image of the same brand of tobacco leaves in the previous batch captured by an image acquisition device. Since the captured historical tobacco leaf images are captured at a set image acquisition frequency, there are at least one historical tobacco leaf image. The historical volume information refers to the tobacco leaf volume information of the historical tobacco leaf image obtained by processing each step of image processing and image analysis for the historical tobacco leaf image of the same brand of tobacco leaves in the previous batch. It should be noted that the preset volume reference value is calculated based on the actual tobacco leaf volume information of the previous batch of the same brand of tobacco leaves. Optionally, all the historical volume information of the previous batch of the same brand of tobacco leaves is obtained, and all the historical volume information, that is, the mean value of the volume flow rate, is calculated, and this mean value is used as the preset volume reference value.

[0055] In this embodiment, a second adjustment coefficient is determined according to the target speed value, the preset reference speed, and the current speed of the conveyor belt.

[0056] It should be noted that, first, the target speed value of the conveyor belt can be determined based on the actual tobacco leaf volume, the preset volume reference value, and the current speed of the conveyor belt. Then, based on the target speed value, the preset reference speed, and the correction coefficient, the second adjustment coefficient can be determined. Optionally, the difference between the target speed value and the preset reference speed can be calculated to determine the speed difference, and based on the product of the speed difference and the correction coefficient, the second adjustment coefficient can be determined.

[0057] Specifically, based on the historical tobacco leaf images corresponding to the previous batch of tobacco leaves, the historical volume information corresponding to each tobacco leaf image is determined. After averaging the historical volume information, the preset volume reference value can be determined. This preset volume reference value can be configured for the conveyor belt. Then, as Figure 2 shown, the target speed value of the conveyor belt can be determined according to the actual tobacco leaf volume, the preset volume reference value, and the current speed of the conveyor belt. Finally, based on the target speed value, the preset reference speed, and the correction coefficient, the second adjustment coefficient can be determined. The dynamic adjustment of the conveyor belt speed can be realized to ensure that the tobacco leaf processing volume in the production process is consistent with the preset standard. This not only improves production efficiency but also effectively deals with various changes and interferences that may occur in actual operation. The second adjustment coefficient can also be determined to subsequently adjust the speed of the bottom belt frequency converter of the feeder.

[0058] S140. Adjust the speed of the bottom belt frequency converter of the feeder according to the first adjustment coefficient and the second adjustment coefficient.

[0059] In this embodiment, based on the first adjustment coefficient and the second adjustment coefficient, a target adjustment coefficient is determined; based on the target adjustment coefficient and the current speed of the bottom belt frequency converter of the feeder, the target rotation speed of the bottom belt frequency converter of the feeder is determined, so as to adjust the speed of the bottom belt frequency converter of the feeder based on the target rotation speed.

[0060] Among them, the target adjustment coefficient is a control parameter that combines the first adjustment coefficient and the second adjustment coefficient and is used to finally adjust the speed of the bottom belt frequency converter of the feeder, so as to accurately adjust the speed of the bottom belt frequency converter of the feeder. It should be noted that the common combination methods of the first adjustment coefficient and the second adjustment coefficient include combination methods such as weighted average, multiplication, and addition. After calculating the first adjustment coefficient and the second adjustment coefficient, the target adjustment coefficient is obtained. The target rotation speed of the bottom belt frequency converter of the feeder is the new speed of the bottom belt frequency converter of the feeder determined based on the target adjustment coefficient and the current speed of the bottom belt frequency converter of the feeder.

[0061] Specifically, the current speed of the bottom belt frequency converter of the feeder can be obtained through devices such as sensors. As Figure 2As shown, based on the calculated target adjustment coefficient, the target rotation speed of the bottom belt frequency converter of the feeder can be determined by multiplying the target adjustment coefficient by the frequency converter speed of the bottom belt of the feeder. The speed of the bottom belt frequency converter of the feeder can be adjusted through the PLC control system based on the target rotation speed.

[0062] In the technical solution of the embodiment of the present disclosure, first, during the process of conveying the tobacco leaves in the feeder to the limiting pipe based on the conveyor belt according to the preset reference speed, the actual volume of the tobacco leaves located on the conveyor belt and the actual height of the limiting pipe are obtained. Then, according to the actual volume of the tobacco leaves and the preset volume reference value, the target speed value of the conveyor belt is determined, and according to the actual height information of the limiting pipe and the preset height information, the first adjustment coefficient for adjusting the feeder is determined. Further, according to the target speed value and the preset reference speed, the second adjustment coefficient is determined. Finally, the speed of the bottom belt frequency converter of the feeder is adjusted according to the first adjustment coefficient and the second adjustment coefficient. This solves the problem in the prior art that when obtaining the actual height value of the limiting pipe connected to the end of the conveyor belt and the preset height value of the limiting pipe, and using the programmable logic controller to control the speed of the bottom belt frequency converter of the feeder, it is difficult to cover all working conditions, resulting in a decrease in the control accuracy of the speed of the bottom belt frequency converter of the feeder and an unstable adjustment effect of the speed of the bottom belt frequency converter of the feeder. On the basis of the prior art, in the embodiment of the present invention, according to the actual volume of the tobacco leaves on the conveyor belt and the preset volume reference value, the target speed value of the conveyor belt is determined, and then based on the target speed value of the conveyor belt and the preset reference speed of the conveyor belt, after determining the adjustment coefficient, the adjustment coefficient is used to adjust the speed of the bottom belt frequency converter of the feeder, improving the control accuracy, making the adjustment effect of the speed of the bottom belt frequency converter of the feeder more stable, ensuring smoother conveyance of the tobacco leaves on the production line, and reducing bottlenecks and stagnation.

[0063] Embodiment 2

[0064] Figure 3 It is a flowchart of a tobacco leaf conveying control method provided by an embodiment of the present invention. On the basis of the foregoing embodiment, a detailed description is given of determining the target speed value of the conveyor belt according to the actual volume of the tobacco leaves and the preset volume reference value. The specific implementation manner can refer to the technical solution of this embodiment. Among them, the same or corresponding technical terms as those in the above embodiment will not be described in detail here.

[0065] As Figure 3 shown, the method specifically includes the following steps:

[0066] S210. During the process of conveying the tobacco leaves in the feeder to the limiting pipe based on the conveyor belt according to the preset reference speed, obtain the actual volume of the tobacco leaves located on the conveyor belt and the actual height of the limiting pipe.

[0067] S220. Process the actual tobacco leaf volume and the preset volume reference value based on the first logic controller to obtain the target speed value of the conveyor belt for transporting the tobacco leaves with the actual tobacco leaf volume.

[0068] Among them, the first logic controller is a key component in the automation system, mainly responsible for dynamically adjusting the speed of the conveyor belt during the transportation of tobacco leaves according to the difference between the actually monitored actual tobacco leaf volume and the preset volume reference value, so as to ensure the stability and efficiency of tobacco leaf transportation.

[0069] Specifically, the first logic controller can collect data, specifically obtain the actual tobacco leaf volume in real time. The first logic controller can process and compare the data. After obtaining the new actual tobacco leaf volume, the first logic controller compares the actual tobacco leaf volume with the preset volume reference value and calculates the deviation between the two. The first logic controller can calculate the target speed value. Specifically, based on the deviation, applying control algorithms such as proportional control or PID control, etc., calculates the target speed value of the conveyor belt. The first logic controller can control the output of the signal, specifically transmit the calculated target speed value to the frequency converter to adjust the actual running speed of the conveyor belt. In the feeding machine conveyor system, the first logic controller dynamically adjusts the speed of the conveyor belt by monitoring and processing the relationship between the actual tobacco leaf volume and the preset reference value in real time, ensuring the stability and efficiency of tobacco leaf transportation.

[0070] S230. Process the actual height and the preset height information based on the second logic controller to obtain the first adjustment coefficient for adjusting the feeding machine.

[0071] Among them, the second logic controller is a key component in the automation system, and its main responsibility is to process the difference between the actual height and the preset height, calculate the first adjustment coefficient, and adjust the running speed parameters of the bottom belt of the feeding machine. This adjustment ensures that during the transportation of tobacco leaf materials, the feeding machine can change dynamically according to the actual situation, improving the response ability and overall efficiency of the system.

[0072] Specifically, the second logic controller can collect data and obtain the actual height and the preset height information. The second logic controller can process and compare the data, specifically calculate the difference between the actual height and the preset height information. The second logic controller can adjust the first adjustment coefficient of the feeding machine, specifically based on the deviation or proportional difference, apply the control algorithm to calculate the first adjustment coefficient. The second logic controller can control the output of the signal and transmit the calculated first adjustment coefficient to relevant motor controllers and other relevant actuators to adjust the speed of the bottom belt frequency converter of the feeding machine. Through the above methods, dynamic adjustment based on height information can be realized, improving the automation level and production efficiency of the feeding machine.

[0073] S240. Determine a second adjustment coefficient based on the target speed value and a preset reference speed.

[0074] S250. Adjust the speed of the bottom belt frequency converter of the feeder according to the first adjustment coefficient and the second adjustment coefficient.

[0075] In the technical solution of the embodiment of the present disclosure, during the process of transporting the tobacco leaves in the feeder to the limited pipe based on the conveyor belt according to the preset reference speed, the actual volume of the tobacco leaves located on the conveyor belt and the actual height of the limited pipe are obtained. Then, based on the first logic controller, the actual volume of the tobacco leaves and the preset volume reference value are processed to obtain the target speed value of the conveyor belt when transporting the tobacco leaves with the actual volume. Further, based on the second logic controller, the actual height and the preset height information are processed to obtain the first adjustment coefficient for adjusting the feeder. Further, according to the target speed value and the preset reference speed, a second adjustment coefficient is determined. Finally, the speed of the bottom belt frequency converter of the feeder is adjusted according to the first adjustment coefficient and the second adjustment coefficient. By separately processing different control tasks through the first logic controller and the second logic controller, not only can the stability and response speed of the tobacco leaf conveying system be significantly improved, but also the tobacco leaf conveying system can respond more quickly to different types of errors, reduce the total response time of the system, adjust the speed of the bottom belt frequency converter of the feeder to control the input amount of tobacco leaves, improve the overall control efficiency, and enhance the automation level and production quality.

[0076] As Figure 4 shown, when the production line is started and there is no material in the limited pipe, the bottom belt of the feeder and the conveyor belt run at high speed. When there is material in the limited pipe, control the speed of the conveyor belt and control the speed of the bottom belt frequency converter of the feeder according to the second correction coefficient. When in the tail material stage, the bottom belt of the feeder and the conveyor belt run at high speed until the production ends.

[0077] Embodiment III

[0078] Figure 5 FIG. is a schematic structural diagram of a tobacco leaf conveying control device provided by an embodiment of the present disclosure. As shown in the figure, the device includes: a data acquisition module 310, a first adjustment coefficient determination module 320, a second adjustment coefficient determination module 330, and a speed adjustment module 340.

[0079] A data acquisition module is configured to acquire the actual volume of tobacco leaves on the conveyor belt and the actual height of the limited pipe during the process of conveying the tobacco leaves in the feeder to the limited pipe based on the conveyor belt at a preset reference speed. A first adjustment coefficient determination module is configured to determine the target speed value of the conveyor belt according to the actual volume of tobacco leaves and the preset volume reference value, and determine a first adjustment coefficient for adjusting the feeder according to the actual height information and the preset height information of the limited pipe. A second adjustment coefficient determination module is configured to determine a second adjustment coefficient according to the target speed value and the preset reference speed. A speed adjustment module is configured to adjust the speed of the bottom belt frequency converter of the feeder according to the first adjustment coefficient and the second adjustment coefficient.

[0080] The technical solution of the embodiment of the present disclosure is as follows. First, during the process of conveying the tobacco leaves in the feeder to the limited pipe based on the conveyor belt at a preset reference speed, the actual volume of tobacco leaves on the conveyor belt and the actual height of the limited pipe are acquired. Then, according to the actual volume of tobacco leaves and the preset volume reference value, the target speed value of the conveyor belt is determined, and according to the actual height information and the preset height information of the limited pipe, a first adjustment coefficient for adjusting the feeder is determined. Further, according to the target speed value and the preset reference speed, a second adjustment coefficient is determined. Finally, the speed of the bottom belt frequency converter of the feeder is adjusted according to the first adjustment coefficient and the second adjustment coefficient. This solves the problem in the prior art that when using a programmable logic controller to control the speed of the bottom belt frequency converter of the feeder after obtaining the actual height value of the limited pipe connected to the end of the conveyor belt and the preset height value of the limited pipe, it is difficult to cover all working conditions, resulting in a decrease in the control accuracy of the speed of the bottom belt frequency converter of the feeder and an unstable adjustment effect of the speed of the bottom belt frequency converter of the feeder. Based on the prior art, the embodiment of the present invention determines the target speed value of the conveyor belt according to the actual volume of tobacco leaves on the conveyor belt and the preset volume reference value, and then determines the adjustment coefficient based on the target speed value of the conveyor belt and the preset reference speed of the conveyor belt. After that, the speed of the bottom belt frequency converter of the feeder is adjusted using the adjustment coefficient, which improves the control accuracy, makes the adjustment effect of the speed of the bottom belt frequency converter of the feeder more stable, ensures the smoother conveyance of tobacco leaves on the production line, and reduces bottlenecks and stagnation.

[0081] Based on the above technical solutions, the data acquisition module 310 includes: an actual tobacco leaf volume information determination sub-module and an actual height information acquisition sub-module.

[0082] The actual tobacco leaf volume information determination sub-module is configured to collect the tobacco leaf image on the conveyor belt based on the image acquisition device deployed at a position associated with the conveyor belt, and analyze and process the tobacco leaf image to determine the actual tobacco leaf volume information.

[0083] An actual height information acquisition sub-module, configured to acquire the actual height information of the tobacco leaves in the limited pipe based on sensors deployed at associated positions of the limited pipe.

[0084] Based on the above technical solutions, the device further includes: a preset volume reference value determination module, configured to determine the historical volume information corresponding to each tobacco leaf image based on at least one historical tobacco leaf image collected in the previous batch, and determine the preset volume reference value according to at least one of the historical volume information; configure the preset volume reference value for the conveyor belt, so as to determine the second adjustment coefficient based on the preset volume reference value.

[0085] Based on the above technical solutions, the first adjustment coefficient determination module 320 includes: a target speed value determination sub-module and a first adjustment coefficient determination sub-module.

[0086] The target speed value determination sub-module is configured to process the actual tobacco leaf volume and the preset volume reference value based on the first logic controller, and obtain the target speed value of the conveyor belt when transporting the tobacco leaves with the actual tobacco leaf volume.

[0087] The first adjustment coefficient determination sub-module is configured to process the actual height and the preset height information based on the second logic controller, and obtain a first adjustment coefficient for adjusting the feeder.

[0088] Based on the above technical solutions, the second adjustment coefficient determination module 330 includes: determining the second adjustment coefficient according to the target speed value, the preset reference speed, and the current speed of the conveyor belt.

[0089] Based on the above technical solutions, the speed adjustment module 340 includes a target adjustment coefficient determination sub-module and a speed adjustment sub-module.

[0090] The target adjustment coefficient determination sub-module is configured to determine a target adjustment coefficient based on the first adjustment coefficient and the second adjustment coefficient.

[0091] The speed adjustment sub-module is configured to determine the target rotation speed of the feeder bottom belt frequency converter based on the target adjustment coefficient and the current speed of the feeder bottom belt frequency converter, so as to adjust the speed of the feeder bottom belt frequency converter based on the target rotation speed.

[0092] The tobacco leaf conveying control device provided by the embodiments of the present disclosure can execute the tobacco leaf conveying control method provided by any embodiment of the present disclosure, and has corresponding functional modules and beneficial effects for executing the method.

[0093] It should be noted that the various units and modules included in the above-mentioned device are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of mutual distinction and do not limit the protection scope of the embodiments of the present disclosure.

[0094] Embodiment 4

[0095] Figure 6 is a schematic structural diagram of an electronic device provided by an embodiment of the present disclosure. The following refers to Figure 6 , which shows a schematic structural diagram of an electronic device (such as Figure 6 the terminal device or server) 500 suitable for implementing the embodiments of the present disclosure. The terminal device in the embodiments of the present disclosure may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Tablet Computers), PMPs (Portable Multimedia Players), in-vehicle terminals (such as in-vehicle navigation terminals), and the like. Figure 6 The electronic device shown is only an example and should not impose any limitations on the functions and usage scope of the embodiments of the present disclosure.

[0096] As Figure 6 shown, the electronic device 500 may include a processing device (such as a central processing unit, a graphics processing unit, etc.) 501, which may perform various appropriate actions and processes according to the programs stored in the read-only memory (ROM) 502 or the programs loaded from the storage device 508 into the random access memory (RAM) 503. In the RAM 503, various programs and data required for the operation of the electronic device 500 are also stored. The processing device 501, the ROM 502, and the RAM 503 are connected to each other through a bus 504. The editing / output (I / O) interface 505 is also connected to the bus 504.

[0097] Generally, the following devices may be connected to the I / O interface 505: an input device 506 including, for example, a touch screen, a touchpad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 507 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 508 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 509. The communication device 509 may allow the electronic device 500 to communicate with other devices wirelessly or wiredly to exchange data. Although Figure 6 shows the electronic device 500 having various devices, it should be understood that it is not required to implement or have all the shown devices. Instead, more or fewer devices may be implemented or had.

[0098] In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, an embodiment of the present disclosure includes a computer program product that includes a computer program carried on a non-transitory computer-readable medium, and the computer program includes program codes for performing the methods shown in the flowcharts. In such an embodiment, the computer program can be downloaded and installed from the network through the communication device 509, or installed from the storage device 508, or installed from the ROM 502. When the computer program is executed by the processing device 501, the above functions defined in the methods of the embodiments of the present disclosure are performed.

[0099] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are for illustrative purposes only and are not used to limit the scope of these messages or information.

[0100] The electronic device provided in the embodiment of the present disclosure and the tobacco leaf conveying control method provided in the above embodiment belong to the same inventive concept. Technical details not described in detail in this embodiment can be referred to in the above embodiment, and this embodiment has the same beneficial effects as the above embodiment.

[0101] Embodiment Five

[0102] The embodiment of the present disclosure provides a computer storage medium, on which a computer program is stored, and when the program is executed by a processor, the tobacco leaf conveying control method provided in the above embodiment is implemented.

[0103] It should be noted that the computer-readable medium described above in the present disclosure can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of a computer-readable storage medium can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, a computer-readable storage medium can be any tangible medium that contains or stores a program, and this program can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present disclosure, a computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, in which the computer-readable program code is carried. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, and this computer-readable signal medium can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on a computer-readable medium can be transmitted by any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0104] In some embodiments, the server can communicate using any currently known or future-developed network protocol such as HTTP (HyperText Transfer Protocol), and can be interconnected with digital data communication in any form or medium (e.g., a communication network). Examples of communication networks include local area networks ("LAN"), wide area networks ("WAN"), the Internet (e.g., the Internet), and end-to-end networks (e.g., ad hoc end-to-end networks), as well as any currently known or future-developed networks.

[0105] The above computer-readable medium can be included in the above electronic device; or it can exist separately without being assembled into the electronic device.

[0106] The above computer-readable medium carries one or more programs, and when the one or more programs are executed by the electronic device, the electronic device is caused to:

[0107] During the process of conveying the tobacco leaves in the feeder to the metering pipe based on a conveyor belt at a preset reference speed, obtain the actual volume of the tobacco leaves located on the conveyor belt and the actual height of the metering pipe;

[0108] According to the actual volume of the tobacco leaves and the preset volume reference value, determine the target speed value of the conveyor belt, and according to the actual height information and the preset height information of the metering pipe, determine a first adjustment coefficient for adjusting the feeder;

[0109] According to the target speed value and the preset reference speed, determine a second adjustment coefficient;

[0110] Adjust the speed of the bottom belt frequency converter of the feeder according to the first adjustment coefficient and the second adjustment coefficient.

[0111] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages or combinations thereof. The above-mentioned programming languages include, but are not limited to, object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (for example, by using an Internet service provider to connect through the Internet).

[0112] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combinations of blocks in the block diagram and / or flowchart, may be implemented by a dedicated hardware-based system for performing the specified functions or operations, or may be implemented by a combination of dedicated hardware and computer instructions.

[0113] The units involved in the embodiments of the present disclosure can be implemented in software or in hardware. In some cases, the name of a unit does not constitute a limitation on the unit itself.

[0114] The functions described above herein can be performed, at least in part, by one or more hardware logic components. By way of example, and without limitation, the types of hardware logic components that may be used include: Field Programmable Gate Arrays (FPGA), Application Specific Integrated Circuits (ASIC), Application Specific Standard Products (ASSP), System on a Chip (SOC), Complex Programmable Logic Devices (CPLD), and the like.

[0115] In the context of the present disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0116] The above description is only a preferred embodiment of the present disclosure and an illustration of the applied technical principles. Those skilled in the art should understand that the scope of the disclosure involved in the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosure concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present disclosure.

[0117] In addition, although the operations are depicted in a particular order, this should not be construed as requiring that the operations be performed in the particular order shown or in sequential order. In certain environments, multitasking and parallel processing may be advantageous. Similarly, although a number of specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the present disclosure. Certain features described in the context of separate embodiments may also be implemented combinatorially in a single embodiment. Conversely, the various features described in the context of a single embodiment may also be implemented separately or in any suitable sub-combination in multiple embodiments.

[0118] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. On the contrary, the specific features and acts described above are merely example forms of implementing the claims.

Claims

1. A tobacco leaf conveying control method, characterized in that, Comprising a feeder, a conveyor belt for conveying the tobacco leaves in the feeder, and a limited tube to which the conveyor belt conveys the tobacco leaves, the method comprising: During the process of conveying the tobacco leaves in the feeder to the limited tube by the conveyor belt based on a preset reference speed, obtaining the actual volume of the tobacco leaves located on the conveyor belt and the actual height of the limited tube; According to the actual volume of the tobacco leaves and a preset volume reference value, determining the target speed value of the conveyor belt, and according to the actual height information and preset height information of the limited tube, determining a first adjustment coefficient for adjusting the feeder; According to the target speed value and the preset reference speed, determining a second adjustment coefficient; Adjusting the speed of the bottom belt frequency converter of the feeder according to the first adjustment coefficient and the second adjustment coefficient.

2. The method according to claim 1, characterized in that, The obtaining the actual volume information of the tobacco leaves located on the conveyor belt and the actual height information of the limited tube includes: Based on an image acquisition device deployed at a position associated with the conveyor belt, collecting an image of the tobacco leaves located on the conveyor belt, and analyzing and processing the image of the tobacco leaves to determine the actual volume information; Based on a sensor deployed at a position associated with the limited tube, collecting the actual height information of the tobacco leaves in the limited tube.

3. The method according to claim 1, wherein Further comprising: Based on at least one historical tobacco leaf image collected in the previous batch, determining the historical volume information corresponding to each tobacco leaf image, and according to at least one of the historical volume information, determining the preset volume reference value; Configuring the preset volume reference value for the conveyor belt to determine the second adjustment coefficient based on the preset volume reference value.

4. The method according to claim 1, wherein The determining the target speed value of the conveyor belt according to the actual volume of the tobacco leaves and the preset volume reference value includes: Based on a first logic controller, processing the actual volume of the tobacco leaves and the preset volume reference value to obtain the target speed value of the conveyor belt when transporting the tobacco leaves with the actual volume; Correspondingly, the determining the first adjustment coefficient for adjusting the feeder according to the actual height and preset height information of the limited tube includes: Based on a second logic controller, processing the actual height and the preset height information to obtain a first adjustment coefficient for adjusting the feeder.

5. The method according to claim 1, wherein The determining the second adjustment coefficient according to the target speed value and the preset reference speed includes: According to the target speed value, the preset reference speed and the current speed of the conveyor belt, determining the second adjustment coefficient.

6. The method according to claim 1, wherein The adjusting the speed of the bottom belt frequency converter of the feeder according to the first adjustment coefficient and the second adjustment coefficient includes: Based on the first adjustment coefficient and the second adjustment coefficient, determining a target adjustment coefficient; Based on the target adjustment coefficient and the current speed of the bottom belt frequency converter of the feeder, determining the target rotation speed of the bottom belt frequency converter of the feeder to adjust the speed of the bottom belt frequency converter of the feeder based on the target rotation speed.

7. A tobacco leaf conveying control device, characterized in that, Including: A data acquisition module, configured to acquire the actual volume of tobacco leaves located on the conveyor belt and the actual height of the limited pipe during the process of conveying the tobacco leaves in the feeder to the limited pipe based on the conveyor belt according to a preset reference speed; A first adjustment coefficient determination module, configured to determine a target speed value of the conveyor belt according to the actual volume of tobacco leaves and a preset volume reference value, and determine a first adjustment coefficient for adjusting the feeder according to the actual height information and preset height information of the limited pipe; A second adjustment coefficient determination module, configured to determine a second adjustment coefficient according to the target speed value and the preset reference speed; A speed adjustment module, configured to adjust the speed of the bottom belt frequency converter of the feeder according to the first adjustment coefficient and the second adjustment coefficient.

8. An electronic device, characterized in that, The electronic device includes: One or more processors; A storage device, configured to store one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement the tobacco leaf conveying control method according to any one of claims 1-6.

9. A storage medium containing computer-executable instructions, characterized in that, The computer-executable instructions are used to execute the tobacco leaf conveying control method according to any one of claims 1-6 when executed by a computer processor.

10. A computer program product, comprising a computer program, characterized in that, The computer program implements the tobacco leaf conveying control method according to any one of claims 1-6 when executed by a processor.

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