Tobacco cutter material conveying speed regulation and control method and device, storage medium and equipment

Abstract

The invention discloses a tobacco cutter material conveying speed regulation and control method and device, a storage medium and equipment, and relates to the technical field of tobacco processing equipment. The method comprises the steps that a real-time moving video frame image of materials in the conveying process of a conveying belt is obtained, and the initial speed of the conveying belt is determined by an initial slip coefficient; calculating the actual conveying speed of the material based on the real-time moving video frame image; if the deviation between the actual conveying speed of the material and the target conveying speed exceeds the preset deviation, the initial material slip coefficient is corrected according to the actual conveying speed of the material, and the corrected material slip coefficient is obtained; and the speed of the conveying belt is adjusted based on the corrected material slip coefficient and the target conveying speed of the materials, so that the purpose of adjusting and controlling the conveying speed of the materials in real time is achieved. The problems that due to the fact that the material conveying speed of a tobacco cutter is unstable, the tobacco cutting thickness is not uniform, and the equipment tobacco cutting efficiency is low can be solved.

Description

Technical Field

[0001] This application relates to the field of tobacco processing equipment technology, and in particular to a method, device, storage medium and equipment for controlling the material conveying speed of a shredder. Background Technology

[0002] A shredder is a device specifically designed to cut materials into uniform shreds. It typically boasts high cutting efficiency, enabling the rapid processing of large quantities of herbs. This equipment is widely used in traditional Chinese medicine, tobacco processing, food processing, and some scientific research fields, helping to improve the efficiency and quality of material processing.

[0003] Currently, when using a shredder to cut materials, a fixed speed is typically used to convey the material. However, during the conveying process, due to various factors, the actual moving speed of the material may deviate from the speed of the conveyor belt, resulting in unstable material conveying speed. This leads to uneven shredding width and low shredding efficiency. Summary of the Invention

[0004] In view of this, this application provides a method, device, storage medium and equipment for regulating the material conveying speed of a shredder, which mainly solves the problem of uneven shredding thickness and low shredding efficiency caused by unstable material conveying speed in shredders.

[0005] According to a first aspect of this application, a method for controlling the material conveying speed of a shredder is provided, the method comprising:

[0006] Acquire real-time video frame images of material movement during conveyor belt transport, wherein the initial speed of the conveyor belt is determined by an initial slip coefficient;

[0007] The actual conveying speed of the material is calculated based on the real-time moving video frame images;

[0008] If the deviation between the actual conveying speed and the target conveying speed of the material exceeds the preset deviation, the initial material slippage coefficient is corrected according to the actual conveying speed of the material to obtain the corrected material slippage coefficient;

[0009] Based on the corrected material slippage coefficient and the target conveying speed of the material, the speed of the conveyor belt is adjusted to achieve real-time control of the material conveying speed.

[0010] According to a second aspect of this application, a material conveying speed control device for a shredder is provided, the device comprising:

[0011] The acquisition unit is used to acquire real-time moving video frame images of materials during the conveying process by the conveyor belt, wherein the initial speed of the conveyor belt is determined by the initial slip coefficient;

[0012] The calculation unit is used to calculate the actual conveying speed of the material based on the real-time moving video frame images;

[0013] The correction unit is used to correct the initial material slippage coefficient according to the actual material slippage coefficient if the deviation between the actual conveying speed and the target conveying speed of the material exceeds a preset deviation, so as to obtain the corrected material slippage coefficient.

[0014] The adjustment unit is used to adjust the speed of the conveyor belt based on the corrected material slippage coefficient and the target conveying speed of the material, so as to achieve real-time control of the material conveying speed.

[0015] According to a third aspect of this application, a storage medium is provided that stores a computer program thereon, which, when executed by a processor, implements the above-described method for controlling the material conveying speed of a shredder.

[0016] According to a fourth aspect of this application, an electronic device is provided, including a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, wherein the processor executes the program to implement the above-described material conveying speed control method for a shredder.

[0017] By employing the above technical solution, this application provides a method, apparatus, storage medium, and equipment for controlling the material conveying speed of a shredder. Compared with the existing technology that uses a fixed-speed material conveying method, this method can calculate the actual conveying speed of the material based on real-time video frame images of the material's movement. If the deviation between the actual conveying speed and the target conveying speed exceeds a preset deviation, the initial material slippage coefficient is corrected according to the actual conveying speed. Based on the corrected material slippage coefficient and the target conveying speed, the conveyor belt speed is adjusted to achieve real-time control of the material conveying speed. This application, by adjusting the material conveying speed online in real time, can solve the problems of uneven shredding thickness and low shredding efficiency caused by unstable material conveying speed in shredders, thereby improving shredding accuracy.

[0018] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1A schematic flowchart of a material conveying speed control method for a shredder provided in an embodiment of this application is shown.

[0021] Figure 2 This illustration shows a real-time acquisition process of video frame images of material movement provided in an embodiment of this application;

[0022] Figure 3 A framework diagram of the material actual conveying speed detection system provided in an embodiment of this application is shown;

[0023] Figure 4 A schematic diagram of the detection process for the actual material conveying speed provided in an embodiment of this application is shown;

[0024] Figure 5 A schematic diagram of a material conveying speed control device for a shredder provided in an embodiment of this application is shown. Detailed Implementation

[0025] The present application will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present application can be combined with each other.

[0026] When materials are conveyed at a fixed speed, the actual moving speed of the materials will deviate from the speed of the conveyor belt due to certain conditions. The material conveying speed is unstable, which leads to uneven shredding width and low shredding efficiency of the equipment.

[0027] To address the aforementioned problems, embodiments of the present invention provide a method for controlling the material conveying speed of a shredder, such as... Figure 1 As shown, the method includes:

[0028] Step 10: Acquire real-time video frame images of the material moving during the conveyor belt transport process.

[0029] The initial speed of the conveyor belt is determined by the initial slippage coefficient. Real-time moving video frame images are acquired in real time by a high-speed linear charge-coupled device (CCD) camera. Materials include tobacco, herbs, food, etc. It should be noted that the types of materials in this embodiment are not limited to those listed above and may also include other types of materials.

[0030] The embodiments of this invention are mainly applicable to scenarios requiring real-time control of material conveying speed. The executing entity of these embodiments is a device or equipment capable of real-time control of material conveying speed.

[0031] Due to factors such as material moisture, temperature, density, or slippage, the actual moving speed of the material deviates from the speed of the conveyor belt, causing unstable material conveying speed and resulting in uneven shred width. To overcome this problem, embodiments of the present invention acquire real-time video frame images of the material's movement during the conveying process, thereby adjusting the material conveying speed in real time to ensure uniform shred width. Regarding the real-time video frame image acquisition process of the material, such as... Figure 2 As shown, the method includes:

[0032] Step 11: Obtain the shredding width, blade rotation speed, and number of blades of the shredder.

[0033] In this embodiment of the invention, the slicing width of the shredder can be set according to actual business needs, and the rotation speed of the cutting roller and the number of blades are also known values. For example, the cutting roller has 8 or 10 blades.

[0034] Step 12: Calculate the initial speed of the conveyor belt based on the shredding width, the cutting roller speed, and the number of blades.

[0035] In this embodiment of the invention, after determining the material's shredding width, cutting roller speed, and number of blades, the target conveying speed of the material is calculated based on these parameters. Then, the initial speed of the conveyor belt is calculated based on the target conveying speed and the initial slip coefficient. The initial slip coefficient can be set according to actual business needs, and is greater than 1, such as 1.2 or 1.1.

[0036] Specifically, the target conveying speed of the material is obtained by multiplying the cutting width, the cutting speed of the roller, and the number of blades. Then, the initial conveying speed of the conveyor belt is obtained by multiplying the target conveying speed by the initial slippage coefficient. The specific formula for calculating the initial speed of the conveyor belt is as follows:

[0037] V0 = V base ×k0

[0038] Where V0 is the initial speed of the conveyor belt, V base Let k be the target conveying speed (ideal speed) of the material, and k0 be the initial slip coefficient. The initial speed of the conveyor belt can be obtained by multiplying the target conveying speed of the material by the initial slip coefficient using the above formula.

[0039] Step 13: Based on the initial speed of the conveyor belt, control the conveyor belt to transport materials.

[0040] In this embodiment of the invention, after calculating the initial speed of the conveyor belt, a fuzzy PID controller is used to adjust the speed of the variable frequency motor, driving the conveyor belt to operate at the calculated initial speed.

[0041] Step 14: Use a linear charge-coupled device (CCD) camera to capture real-time video frame images of the material moving during the conveyor belt transport process.

[0042] This invention employs a laser velocimetry sensor to non-contactly measure the moving speed of the conveyor belt, specifically detecting the surface speed of the conveyor belt. Simultaneously, a high-speed linear array charge-coupled device (CCD) camera is used to non-contactly measure the moving speed of the material, capturing the displacement speed at the material's edges. Specifically, the laser velocimetry sensor collects real-time speed data of the conveyor belt, while the high-speed linear array CCD camera captures real-time video of the material's movement. By segmenting this video into frames, video frame images at different time points can be obtained. The conveyor belt speed data and the video frame image data are then sent to an embedded processor for processing.

[0043] Step 20: Calculate the actual conveying speed of the material based on the real-time moving video frame image.

[0044] In this embodiment of the invention, after acquiring real-time moving video frame images, the actual conveying speed of the material is calculated based on these images. The method includes: preprocessing the real-time moving video frame images to obtain preprocessed video frame images, wherein the preprocessed video frame images include a video frame image of the current time node and a video frame image of the previous time node corresponding to the current time node; identifying a first target region and a second target region where the material is located from the video frame images of the current time node and the previous time node, respectively; determining the displacement pixel value of the material in the continuous image based on the first target region and the second target region; and calculating the actual conveying speed of the material based on the displacement pixel value, camera parameters, and the time interval between the current time node and the previous time node.

[0045] When calculating the actual conveying speed of materials, the displacement pixel values ​​are converted into actual physical displacement values ​​through geometric relationships based on the camera installation position and camera parameters. Then, based on the actual physical displacement values ​​and the time interval between the current time node and the previous time node, the actual conveying speed of materials is calculated. Alternatively, pixel speed can be calculated based on the displacement pixel values ​​and the time interval, and then converted into the actual conveying speed of materials through geometric relationships based on the pixel speed and camera parameters, i.e., physical speed reconstruction.

[0046] Taking tobacco as an example, such as Figure 3As shown, a rectangular optical window is opened next to the tobacco conveying channel, and a micrometer scale is deployed on the optical window. An optical lens, in conjunction with an active light source, captures real-time video frames of the tobacco moving within the channel. Using camera geometry principles, the movement direction and speed of individual tobacco particles and clumps within the channel are measured and tracked in real time. Based on this, the macroscopic flow velocity of the tobacco (the actual conveying speed of the tobacco) is calculated in mm / s. The overall calculation process for the actual conveying speed is as follows: Figure 4 As shown. At the same time, laser velocimeters are installed on both sides of the conveyor belt to sample the moving speed of the conveyor belt at a preset frequency (such as 200HZ).

[0047] Step 30: If the deviation between the actual conveying speed of the material and the target conveying speed exceeds the preset deviation, then the initial material slippage coefficient is corrected according to the actual conveying speed of the material to obtain the corrected material slippage coefficient.

[0048] The preset deviation can be set according to actual business needs, such as setting the preset deviation to 5% or setting the preset deviation to 2mm / s.

[0049] In this embodiment of the invention, when the deviation between the actual conveying speed of the material and the target conveying speed exceeds the preset deviation, the material slippage coefficient is recalculated based on the initial speed of the conveyor belt and the actual conveying speed of the material, and the initial material slippage coefficient is corrected based on the recalculated material slippage coefficient to obtain the corrected material slippage coefficient.

[0050] V0=V1×k1

[0051] Where V0 is the initial speed of the conveyor belt, V1 is the actual conveying speed of the material, and k1 is the corrected material slippage coefficient. The above formula can be used to correct the initial material slippage coefficient, thus obtaining the corrected material slippage coefficient.

[0052] Step 40: Based on the corrected material slippage coefficient and the target conveying speed of the material, adjust the speed of the conveyor belt to achieve real-time control of the material conveying speed.

[0053] In this embodiment of the invention, after obtaining the corrected material slippage coefficient, the conveying speed of the conveyor belt is adjusted to make the material conveying speed reach the target conveying speed. The method for this process includes: multiplying the corrected material slippage coefficient by the target conveying speed of the material to obtain the adjusted conveyor belt speed; and controlling the conveyor belt to convey the material based on the adjusted conveyor belt speed, thereby achieving real-time regulation of the material conveying speed.

[0054] The specific formula for calculating the adjusted conveyor belt speed is as follows:

[0055] V1 = V base ×k1

[0056] Where V1 is the adjusted conveyor belt speed, V base is the target conveying speed (ideal speed) of the material, and k1 is the corrected material slippage coefficient.

[0057] After calculating the adjusted conveyor belt speed, a fuzzy PID controller is used to dynamically adjust the motor speed and control the conveyor belt to transport materials so that the materials reach the target conveying speed, thereby achieving the purpose of real-time control of material speed.

[0058] For example, if the shredding width is set to 1mm and the initial speed of the conveyor belt is calculated to be 43.3mm / s, when the deviation between the actual conveying speed of the material and the target conveying speed is detected to exceed 2mm / s, the conveyor belt speed is adjusted. A fuzzy controller is used to adjust the speed of the servo motor so that the conveying speed of the material reaches the target conveying speed.

[0059] This invention, through real-time adjustment of the material conveying speed, achieves millimeter-level precise control of the material conveying speed, thereby solving the problem of unstable shredding width caused by changes in material characteristics and material slippage in traditional methods. The experimental examples above demonstrate that this solution can improve product control accuracy from ±0.01mm to ±0.02mm, thus enabling real-time and precise control of the shredding accuracy of the shredder.

[0060] Furthermore, embodiments of the present invention can also analyze the influence of factors such as material temperature, density, and moisture on material movement speed (slippage coefficient) through data accumulation, thereby deriving patterns. Based on this, the method includes: collecting historical adjustment directions and historical adjustment ranges of the slippage coefficient under various influencing factors, wherein the various influencing factors include the material's temperature, density, and moisture; using the historical adjustment directions and historical adjustment ranges of the slippage coefficient under the various influencing factors as training data; constructing an initial slippage coefficient decision tree evaluation model; and training the initial slippage coefficient decision tree evaluation model using the training data to obtain a preset slippage coefficient decision tree evaluation model, wherein the preset slippage coefficient decision tree evaluation model includes the contribution of the various influencing factors to the adjustment direction and adjustment range of the slippage coefficient.

[0061] Specifically, by using the preset slip coefficient decision tree evaluation model, combined with the material's current temperature, density, and moisture content, the direction and magnitude of adjustment for the material's slip coefficient can be determined. Simultaneously, the preset slip coefficient decision tree evaluation model includes the contributions of temperature, moisture content, and density to the slip coefficient. For example, temperature contributes 0.3 to the slip coefficient, density contributes 0.2, and moisture contributes 0.5.

[0062] This invention provides a method for controlling the material conveying speed of a shredder. Based on real-time video frames of material movement, the method calculates the actual conveying speed of the material. If the deviation between the actual and target conveying speed exceeds a preset deviation, the initial material slippage coefficient is corrected according to the actual conveying speed. Based on the corrected slippage coefficient and the target conveying speed, the conveyor belt speed is adjusted to achieve real-time control of the material conveying speed. This invention, by adjusting the material conveying speed online in real time, solves the problems of uneven shredding thickness and low shredding efficiency caused by unstable material conveying speed in shredders, thereby improving shredding accuracy.

[0063] Furthermore, as Figure 1 and Figure 2 The specific implementation of the method shown in this embodiment provides a material conveying speed control device for a shredder, such as... Figure 5 As shown, the device includes: an acquisition unit 101, a calculation unit 102, a correction unit 103, and an adjustment unit 104.

[0064] The acquisition unit 101 can be used to acquire real-time moving video frame images of materials during the conveyor belt process, wherein the initial speed of the conveyor belt is determined by the initial slip coefficient.

[0065] The calculation unit 102 can be used to calculate the actual conveying speed of the material based on the real-time moving video frame image.

[0066] The correction unit 103 can be used to correct the initial material slippage coefficient according to the actual material slippage coefficient if the deviation between the actual conveying speed and the target conveying speed of the material exceeds a preset deviation, so as to obtain the corrected material slippage coefficient.

[0067] The adjustment unit 104 can be used to adjust the speed of the conveyor belt based on the corrected material slippage coefficient and the target conveying speed of the material, so as to achieve the purpose of real-time control of the material conveying speed.

[0068] In some embodiments, the acquisition unit 101 includes: an acquisition module, a first calculation module, a control module, and a collection module.

[0069] The acquisition module can be used to acquire the shredding width, blade rotation speed, and number of blades of the shredder.

[0070] The first calculation module can be used to calculate the initial speed of the conveyor belt based on the shredding width, the cutting roller speed, and the number of blades.

[0071] The control module can be used to control the conveyor belt to transport materials based on the initial speed of the conveyor belt.

[0072] The acquisition module can be used to acquire real-time moving video frame images of the material during the conveyor belt transport process using a linear charge-coupled device camera.

[0073] In some embodiments, the first calculation module may be specifically used to calculate the target conveying speed of the material based on the shredding width, the cutting roller speed and the number of blades; and to calculate the initial speed of the conveyor belt based on the target conveying speed of the material and the initial slip coefficient.

[0074] In some embodiments, the correction unit 103 includes: a processing module, an identification module, a determination module, and a second calculation module.

[0075] The processing module can be used to preprocess the real-time moving video frame image to obtain a preprocessed video frame image, wherein the preprocessed video frame image includes the video frame image of the current time node and the video frame image of the previous time node corresponding to the current time node.

[0076] The identification module can be used to identify the first target area and the second target area where the material is located from the video frame image of the current time node and the video frame image of the previous time node, respectively.

[0077] The determining module can be used to determine the displacement pixel value of the material in a continuous image based on the first target region and the second target region.

[0078] The second calculation module can be used to calculate the actual conveying speed of the material based on the displacement pixel value, camera parameters, and the time interval between the current time node and the previous time node.

[0079] In some embodiments, the second calculation module may be specifically used to convert the displacement pixel value into an actual physical displacement value through geometric relationships based on the camera installation position and camera parameters; and to calculate the actual conveying speed of the material based on the actual physical displacement value and the time interval between the current time node and the previous time node.

[0080] In some embodiments, the correction unit 103 may be specifically used to recalculate the material slippage coefficient based on the initial speed of the conveyor belt and the actual conveying speed of the material; and correct the initial material slippage coefficient based on the recalculated material slippage coefficient to obtain the corrected material slippage coefficient.

[0081] In some embodiments, the adjustment unit 104 may be specifically used to multiply the corrected material slippage coefficient and the target conveying speed of the material to obtain the adjusted conveyor belt speed; based on the adjusted conveyor belt speed, control the conveyor belt to convey the material, so as to achieve the purpose of real-time regulation of material conveying speed.

[0082] In some embodiments, the apparatus further includes a training unit.

[0083] The training unit can be used to collect the historical adjustment direction and historical adjustment range of the slip coefficient under various influencing factors, wherein the various influencing factors include the temperature, density and moisture of the material; use the historical adjustment direction and historical adjustment range of the slip coefficient under various influencing factors as training data; construct an initial slip coefficient decision tree evaluation model; use the training data to train the initial slip coefficient decision tree evaluation model to obtain a preset slip coefficient decision tree evaluation model, wherein the preset slip coefficient decision tree evaluation model includes the contribution of the various influencing factors to the adjustment direction and adjustment range of the slip coefficient.

[0084] It should be noted that other corresponding descriptions of the functional units involved in the material conveying speed control device for a shredder provided in this embodiment can be found in [reference needed]. Figure 1 and Figure 2 The corresponding descriptions in [the document] will not be repeated here.

[0085] Based on the above, Figure 1 and Figure 2 Accordingly, this embodiment also provides a storage medium storing a computer program that, when executed by a processor, implements the above-described method. Figure 1 and Figure 2 The method for controlling the material conveying speed of the shredder is shown.

[0086] Based on this understanding, the technical solution of this application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as CD-ROM, USB flash drive, mobile hard drive, etc.) and includes several instructions to cause an electronic device (such as a personal computer, server, or network device, etc.) to execute the methods of various implementation scenarios of this application.

[0087] Based on the above, Figure 1 and Figure 2 The method shown, and Figure 5To achieve the above objectives, the present application also provides an electronic device, specifically a personal computer, tablet computer, server, or other network device, as shown in the virtual device embodiment. This device includes a storage medium and a processor; the storage medium stores a computer program; the processor executes the computer program to achieve the above-described objectives. Figure 1 and Figure 2 The method for controlling the material conveying speed of the shredder is shown.

[0088] Optionally, the aforementioned physical devices may also include a user interface, a network interface, a camera, radio frequency (RF) circuitry, sensors, audio circuitry, a Wi-Fi module, etc. The user interface may include a display screen, input units such as a keyboard, etc., and optional user interfaces may also include USB interfaces, card reader interfaces, etc. The network interface may optionally include standard wired interfaces, wireless interfaces (such as Wi-Fi interfaces), etc.

[0089] Those skilled in the art will understand that the physical device structure provided in this embodiment does not constitute a limitation on the physical device, and may include more or fewer components, or combine certain components, or have different component arrangements.

[0090] The storage medium may also include an operating system and a network communication module. The operating system is a program that manages the hardware and software resources of the aforementioned physical device, supporting the operation of information processing programs and other software and / or programs. The network communication module is used to enable communication between the various components within the storage medium, as well as communication with other hardware and software in the information processing physical device.

[0091] Through the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware platform, or it can be implemented by hardware.

[0092] This invention can calculate the actual conveying speed of the material based on real-time video frames of its movement. If the deviation between the actual and target conveying speed exceeds a preset deviation, the initial material slippage coefficient is corrected based on the actual conveying speed. Then, the conveyor belt speed is adjusted based on the corrected slippage coefficient and the target conveying speed to achieve real-time control of the material conveying speed. This invention, by adjusting the material conveying speed online in real time, solves the problem of uneven shredding thickness and low shredding efficiency caused by unstable material conveying speed in shredding machines, thereby improving shredding accuracy.

[0093] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred embodiment, and the modules or processes shown in the drawings are not necessarily essential for implementing this application. Those skilled in the art will understand that the modules in the apparatus of the embodiment can be distributed within the apparatus of the embodiment as described, or can be modified to be located in one or more apparatuses different from this embodiment. The modules of the above-described embodiment can be combined into one module, or further divided into multiple sub-modules.

[0094] The serial numbers in this application are for descriptive purposes only and do not represent the superiority or inferiority of any particular implementation scenario. The above disclosures are merely a few specific implementation scenarios of this application; however, this application is not limited thereto, and any variations conceived by those skilled in the art should fall within the protection scope of this application.

Claims

1. A method for controlling the material conveying speed of a shredder, characterized in that, include: Acquire real-time video frame images of material movement during conveyor belt transport, wherein the initial speed of the conveyor belt is determined by an initial slip coefficient; The actual conveying speed of the material is calculated based on the real-time moving video frame images; If the deviation between the actual conveying speed and the target conveying speed of the material exceeds the preset deviation, the initial material slippage coefficient is corrected according to the actual conveying speed of the material to obtain the corrected material slippage coefficient; Based on the corrected material slippage coefficient and the target conveying speed of the material, the speed of the conveyor belt is adjusted to achieve real-time control of the material conveying speed.

2. The method according to claim 1, characterized in that, The acquisition of real-time moving video frame images of materials during the conveyor belt transport process includes: Obtain the shredding width, blade rotation speed, and number of blades of the shredder; The initial speed of the conveyor belt is calculated based on the shredding width, the cutting roller speed, and the number of blades. Based on the initial speed of the conveyor belt, the conveyor belt is controlled to transport materials; The material is captured in real-time video frames during the conveyor belt transport process using a linear charge-coupled device (CCD) camera.

3. The method according to claim 2, characterized in that, The calculation of the initial speed of the conveyor belt based on the shredding width, the cutting roller speed, and the number of blades includes: The target conveying speed of the material is calculated based on the shredding width, the cutting roller speed, and the number of blades. The initial speed of the conveyor belt is calculated based on the target conveying speed of the material and the initial slip coefficient.

4. The method according to claim 1, characterized in that, The calculation of the actual conveying speed of the material based on the real-time moving video frame image includes: The real-time moving video frame image is preprocessed to obtain a preprocessed video frame image, wherein the preprocessed video frame image includes the video frame image of the current time node and the video frame image of the previous time node corresponding to the current time node. The first target area and the second target area where the material is located are identified from the video frame image of the current time node and the video frame image of the previous time node, respectively; Based on the first target region and the second target region, determine the displacement pixel value of the material in the continuous image; The actual conveying speed of the material is calculated based on the displacement pixel value, camera parameters, and the time interval between the current time node and the previous time node.

5. The method according to claim 4, characterized in that, The step of calculating the actual conveying speed of the material based on the displacement pixel value, camera parameters, and the time interval between the current time node and the previous time node includes: Based on the camera's installation location and camera parameters, the displacement pixel values ​​are converted into actual physical displacement values ​​using geometric relationships; The actual conveying speed of the material is calculated based on the actual physical displacement value and the time interval between the current time node and the previous time node.

6. The method according to claim 2, characterized in that, The step of correcting the initial material slippage coefficient based on the actual conveying speed of the material to obtain the corrected material slippage coefficient includes: Based on the initial speed of the conveyor belt and the actual conveying speed of the material, the material slippage coefficient is recalculated; Based on the recalculated material slippage coefficient, the initial material slippage coefficient is corrected to obtain the corrected material slippage coefficient; and / or The step of adjusting the conveyor belt speed based on the corrected material slippage coefficient and the target conveying speed of the material to achieve real-time control of the material conveying speed includes: The adjusted conveyor belt speed is obtained by multiplying the corrected material slip coefficient by the target conveying speed of the material. Based on the adjusted conveyor belt speed, the conveyor belt is controlled to transport the material, so as to achieve the purpose of real-time regulation of the material conveying speed.

7. The method according to any one of claims 1-6, characterized in that, The method further includes: Collect the historical adjustment direction and historical adjustment range of the slippage coefficient under various influencing factors, wherein the various influencing factors include the temperature, density and moisture of the material; The historical adjustment direction and historical adjustment range of the slip coefficient under the various influencing factors are used as training data; An initial slip coefficient decision tree evaluation model is constructed, and the initial slip coefficient decision tree evaluation model is trained using the training data to obtain a preset slip coefficient decision tree evaluation model. The preset slip coefficient decision tree evaluation model includes the contribution of the various influencing factors to the adjustment direction and adjustment magnitude of the slip coefficient.

8. A material conveying speed control device for a shredder, characterized in that, include: The acquisition unit is used to acquire real-time moving video frame images of materials during the conveying process by the conveyor belt, wherein the initial speed of the conveyor belt is determined by the initial slip coefficient; The calculation unit is used to calculate the actual conveying speed of the material based on the real-time moving video frame images; The correction unit is used to correct the initial material slippage coefficient according to the actual material slippage coefficient if the deviation between the actual conveying speed and the target conveying speed of the material exceeds a preset deviation, so as to obtain the corrected material slippage coefficient. The adjustment unit is used to adjust the speed of the conveyor belt based on the corrected material slippage coefficient and the target conveying speed of the material, so as to achieve real-time control of the material conveying speed.

9. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method of any one of claims 1 to 7.

10. An electronic device comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method of any one of claims 1 to 7.

Images