Ring winding degree detection method and device and electronic equipment

Abstract

This disclosure provides a method, apparatus, and electronic device for detecting the degree of ring formation. The method includes: acquiring an image of the inside of a rotary kiln; determining the radial dimension of the ring layer inside the kiln based on the image; and determining the degree of ring formation based on the radial dimension of the ring layer and a preset radial dimension inside the kiln. The method provided by this disclosure can automatically determine the degree of ring formation inside a rotary kiln using an image of the inside of the kiln, effectively ensuring the real-time nature and accuracy of the ring formation determination, thereby providing a strong guarantee for the normal production operation of the rotary kiln.

Description

Technical Field

[0001] This disclosure relates to the field of rotary kiln technology, and in particular to a method, apparatus and electronic equipment for detecting the degree of ring formation. Background Technology

[0002] Ring formation refers to the formation of ring-shaped deposits of refractory material adhering to certain areas of the refractory lining during rotary kiln operation. This problem is a major factor affecting the normal production of rotary kilns. Severe ring formation increases the gravity load within the kiln, leading to increased equipment load, reduced production capacity, and obstructed charge flow. It can also cause the refractory material to crack and peel off, affecting the service life of the lining. Therefore, timely monitoring of the degree of ring formation within the rotary kiln is crucial for its normal operation.

[0003] In related technologies, the formation of rings inside the kiln is often observed manually. When severe ring formation is detected, manual cleaning begins. However, due to the high temperatures inside the rotary kiln and the ambient temperature, this method is not only prone to eye damage and time-consuming, but also can lead to shutdowns if ring formation is not detected in time. Alternatively, the ring thickness can be determined by real-time acquisition of the flue gas temperature and inner surface temperature inside the rotary kiln, combined with parameters such as the remaining thickness of the refractory layer, the thermal conductivity of the ring layer, and a heat transfer mechanism model. However, this temperature-based method for determining ring thickness is prone to inaccurate results due to errors in temperature detection, the potential for clogging and damage to thermocouples, and errors in the heat transfer mechanism model, all of which can lead to untimely ring removal. Summary of the Invention

[0004] According to one aspect of this disclosure, a method for detecting the degree of ringing is provided, the method comprising:

[0005] Obtain images of the interior of the rotary kiln;

[0006] Determine the radial dimensions of the kiln-integrated ring layer based on kiln-in images;

[0007] The degree of ring formation is determined based on the radial dimensions of the ring layer inside the kiln and the preset radial dimensions inside the kiln.

[0008] According to another aspect of this disclosure, a ring formation degree detection device is provided, the device comprising:

[0009] The acquisition module is used to acquire images of the inside of the rotary kiln;

[0010] The determination module is used to determine the radial dimensions of the kiln-in-kiln ring layer based on images inside the kiln.

[0011] The determination module is also used to determine the degree of ring formation based on the radial dimensions of the ring layer inside the kiln and the preset radial dimensions inside the kiln.

[0012] According to another aspect of this disclosure, an electronic device is provided, comprising:

[0013] Processor; and,

[0014] Memory for stored programs;

[0015] The program includes instructions that, when executed by a processor, cause the processor to perform the method described according to exemplary embodiments of the present disclosure.

[0016] According to another aspect of this disclosure, a non-transitory computer-readable storage medium is provided storing computer instructions, wherein the computer instructions are used to cause a computer to perform the method described according to an exemplary embodiment of this disclosure.

[0017] One or more technical solutions provided in the exemplary embodiments of this disclosure can acquire images of the inside of a rotary kiln, determine the radial dimensions of the ring-forming layer inside the kiln based on the images, and then determine the degree of ring formation based on the radial dimensions of the ring-forming layer and a preset radial dimension inside the kiln. It is evident that the method of the exemplary embodiments of this disclosure can automatically determine the degree of ring formation inside a rotary kiln using images of the inside of the kiln, effectively ensuring the real-time nature and accuracy of the ring formation degree, thereby providing a strong guarantee for the normal production operation of the rotary kiln. Attached Figure Description

[0018] Further details, features, and advantages of this disclosure are disclosed in the following description of exemplary embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A schematic diagram of a cross-section of a rotary kiln parallel to its central axis is shown in the related art;

[0020] Figure 2 A flowchart of a method for detecting the degree of coiling according to an exemplary embodiment of the present disclosure is shown;

[0021] Figure 3 A schematic diagram showing the installation location of the image acquisition device according to an exemplary embodiment of the present disclosure is provided;

[0022] Figure 4A A schematic diagram showing an image of an interior kiln, illustrating an exemplary embodiment of the present disclosure;

[0023] Figure 4B A schematic diagram showing another kiln interior image according to an exemplary embodiment of the present disclosure;

[0024] Figure 5 A flowchart illustrating the determination of the radial dimensions of the ring layer within the kiln, as shown in an exemplary embodiment of this disclosure, is provided.

[0025] Figures 6A-6BA schematic diagram illustrating the determination of the radial dimensions of the ring layer within the kiln according to an exemplary embodiment of the present disclosure is shown;

[0026] Figure 7 A schematic block diagram of a looping degree detection device according to an exemplary embodiment of the present disclosure is shown.

[0027] Figure 8 A schematic block diagram of a chip according to an exemplary embodiment of the present disclosure is shown;

[0028] Figure 9 A structural block diagram of an exemplary electronic device that can be used to implement embodiments of the present disclosure is shown. Detailed Implementation

[0029] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0030] It should be understood that the steps described in the method embodiments of this disclosure may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this disclosure is not limited in this respect.

[0031] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc., used in this disclosure are only used to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0032] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0033] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0034] Before introducing the embodiments of this disclosure, the relevant terms involved in the embodiments of this disclosure are first defined as follows:

[0035] A rotary kiln is a continuously rotating high-temperature kiln and a core piece of equipment in the production lines for oxidized pelletizing and direct reduced iron processes. Figure 1 A schematic diagram of a cross-section of a rotary kiln parallel to its central axis in the related art is shown, such as... Figure 1 As shown, the rotary kiln 100 is a thin-walled steel cylinder mounted on a support device with an inclination of 1% to 6%. The upper end is the kiln head end 102, and the lower end is the kiln tail end 103. Solid biomass enters from the kiln head end 102, and gaseous fuel enters from either the kiln head end 102 or the kiln tail end 103. The large amount of heat generated is used to process the biomass. Due to the inclined installation of the rotary kiln, the biomass inside the kiln moves axially while circumferentially tumbling, thus slowly flowing through the entire cylinder. Through complex physicochemical changes, it completes the dehydration and decarbonization process, and the resulting clinker is discharged from the kiln tail end and enters the cooling system.

[0036] Ring formation refers to the process during rotary kiln operation where, due to the high temperature inside the kiln, some powder and low-melting-point substances that have detached from the surface of the biomass reach their melting point and become molten. As the rotary kiln rotates, these molten substances revert to a solid state in the cooler kiln tail area, adhering some of the biomass to the kiln wall. As the rotary kiln continues to rotate, a ring of adhesive material forms on the inner surface of the kiln, which is called a ring.

[0037] In related technologies, the formation of rings inside the kiln is often observed manually. When severe ring formation is found, manual cleaning is started. However, due to the high temperature inside the rotary kiln and the high ambient temperature, this method is not only easy to damage people's eyes, but also time-consuming and labor-intensive. If the formation is not detected in time, it may cause the machine to be shut down due to the severe ring formation.

[0038] In addition, the thickness of the ring can be determined by real-time acquisition of the flue gas temperature and inner surface temperature inside the rotary kiln, combined with parameters such as the retained thickness of the refractory layer and the thermal conductivity of the ring layer, as well as the heat transfer mechanism model. However, this method of determining the ring thickness based on temperature is prone to inaccurate results due to errors in temperature detection, the easy blockage and damage of thermocouples, and errors in the heat transfer mechanism model, which can lead to untimely ring cleaning.

[0039] To address the aforementioned problems, this exemplary embodiment provides a method for detecting the degree of ring formation within a rotary kiln. This method automatically determines the degree of ring formation using kiln-in-kiln images, effectively ensuring the real-time nature and accuracy of the ring formation detection, thereby providing strong support for the normal production operation of the rotary kiln. It can be applied to terminals or chips within terminals. The method of this exemplary embodiment is described in detail below with reference to the accompanying drawings.

[0040] Figure 2A flowchart illustrating a method for detecting the degree of coiling according to an exemplary embodiment of this disclosure is shown. Figure 2 As shown, the method for detecting the degree of coiling in an exemplary embodiment of this disclosure includes:

[0041] Step 201: Acquire images of the interior of the rotary kiln. These images can be cross-sectional views of the rotary kiln, captured by an image acquisition device located on the outer side of the kiln tail, positioned along the central axis of the kiln. The image acquisition device can include devices with photographic capabilities (such as mobile phones, tablets, etc.), such as cameras, camcorders, and scanners, and may also include video capture cards. The acquired images can be directly or indirectly imported into a computer for further processing.

[0042] Figure 3 A schematic diagram showing the installation location of the image acquisition device according to an exemplary embodiment of the present disclosure is provided. Figure 3 As shown, when the temperature inside the kiln is high, the powder and low-melting-point substances that detach from the surface of the biomass reach their melting point and become molten. As the rotary kiln rotates, these molten substances reach the kiln tail area and transform back into a solid state. During this process, the molten substances also adhere some of the biomass to the kiln wall, forming a ring. The closer to the kiln tail, the lower the temperature, making it easier for rings to form, and the thicker the rings become. Therefore, the method of the exemplary embodiment of this disclosure places the image acquisition device 301 on the outside of the kiln tail, which can acquire the kiln image at the cross-section with the largest ring thickness. Analyzing the degree of ring formation based on the kiln image at the cross-section with the largest ring thickness ensures that if production efficiency is reduced due to severe ring formation, the rings can be cleared immediately, reducing the gravity load inside the kiln, ensuring smooth material flow, and providing strong support for the normal production operation of the rotary kiln.

[0043] Meanwhile, in the exemplary embodiment of this disclosure, the image acquisition device 301 is set on the central axis of the rotary kiln, and the image acquisition angle of the image acquisition device 301 is consistent with the tilt angle of the central axis. The acquired image inside the kiln (i.e., the cross-section of the rotary kiln) is close to the theoretical circle. At this time, when the degree of ring formation inside the rotary kiln is determined by the image inside the kiln, the accuracy of the obtained degree of ring formation is higher.

[0044] In practical applications, the kiln interior image in the exemplary embodiments of this disclosure may include a kiln wall region and a kiln interior region. The kiln wall region may include at least a refractory layer and may also include a kiln shell layer; the kiln interior region may include at least a material layer and may also include a ring-forming layer. Furthermore, in the method of the exemplary embodiments of this disclosure, the area proportion of the kiln interior image within the image frame containing the kiln interior image is greater than or equal to a preset proportion threshold. This preset proportion threshold can be determined according to the actual scenario. For example, the preset proportion threshold can be set to 2 / 3. If the area proportion of the kiln interior image within the image frame containing the kiln interior image is less than 2 / 3, the area proportion of the kiln interior image within the image frame is small. This may lead to a large measurement error in the radial dimension of the kiln interior ring-forming layer due to unclear image quality and indistinct boundaries between the kiln wall region and the kiln interior region, resulting in inaccurate ring-forming degree calculation results. Therefore, the exemplary embodiments of this disclosure can ensure the clarity of the kiln interior image and the accuracy of the ring-forming degree calculation results by controlling the area proportion of the kiln interior image within the image frame containing the kiln interior image.

[0045] Figure 4A This is a schematic diagram showing an image of the interior of a kiln, illustrating an exemplary embodiment of the present disclosure. (As shown...) Figure 4A As shown, in image 410, no rings are formed inside the rotary kiln. At this time, the image inside the kiln can include the kiln wall area and the kiln interior area. The kiln wall area includes the refractory layer 401, and the kiln interior area includes the material layer 402. Figure 4B This is a schematic diagram showing another image of the interior of a kiln according to an exemplary embodiment of the present disclosure. (See also:) Figure 4B As shown in image 420, during the operation of the rotary kiln, a ring is formed inside the kiln. At this time, the area inside the kiln in the image can also include the ring layer 403.

[0046] Step 202: Determine the radial dimensions of the kiln-integrated ring layer based on the kiln-integrated image. When the kiln-integrated image is obtained, the boundary line between the kiln wall region and the kiln-integrated region in the kiln-integrated image can be used as the outer ring layer, the contact surface between the gas phase layer and the material layer in the kiln-integrated region can be used as the inner ring layer, and the kiln-integrated region between the outer ring layer and the inner ring layer can be used as the ring layer. Once the ring layer is determined, the radial dimensions of the kiln-integrated ring layer can be automatically determined.

[0047] Step 203: Determine the degree of ring formation based on the radial dimensions of the ring layer inside the kiln and the preset radial dimensions inside the kiln.

[0048] The aforementioned preset radial dimension inside the kiln can be the radial dimension inside the kiln when no ring layer has formed inside the rotary kiln. In other words, the preset radial dimension inside the kiln is the radial dimension inside the kiln when the ring degree is 0. At this time, the ring degree inside the rotary kiln can be automatically calculated based on the radial dimension of the ring layer inside the kiln determined in step 202 and the preset radial dimension inside the kiln.

[0049] As can be seen, the ring formation degree detection method provided in the exemplary embodiments of this disclosure can acquire an image of the inside of a rotary kiln, determine the radial dimension of the ring formation layer inside the kiln based on the image, and then determine the ring formation degree based on the radial dimension of the ring formation layer inside the kiln and a preset radial dimension inside the kiln. Therefore, the method in the exemplary embodiments of this disclosure can automatically determine the ring formation degree inside a rotary kiln using an image of the inside of the kiln, effectively ensuring the real-time nature and accuracy of the ring formation degree, thereby providing a strong guarantee for the normal production operation of the rotary kiln.

[0050] In one alternative approach, Figure 5 A flowchart illustrating the determination of the radial dimensions of the ring layer within the kiln, as shown in an exemplary embodiment of this disclosure, is provided. Figure 5 As shown, step 202 in the exemplary embodiment of this disclosure may include:

[0051] Step 501: Determine the position of the kiln's axis of rotation based on the kiln interior image and the radial dimensions of the rotary kiln.

[0052] In practical applications, due to the acquisition angle error, the obtained cross-sectional image of the kiln may differ from the actual cross-sectional image of the kiln. In the exemplary embodiment of this disclosure, when determining the axial position of the kiln from the kiln image, the radial dimension of the rotary kiln can be used to eliminate the above-mentioned error.

[0053] Figures 6A-6B A schematic diagram illustrating the determination of the radial dimensions of the ring layer within the kiln, as shown in an exemplary embodiment of this disclosure. Figure 6A As shown, image segmentation algorithms can be used to divide the kiln interior and kiln wall regions contained in the kiln interior image. For example, the kiln interior image can be divided into three non-overlapping layered regions: refractory layer 601, ring layer 602, and material layer 603, based on features such as grayscale, color, and spatial texture. Typically, the grayscale values ​​of pixels at the boundaries of different layered regions change drastically. Therefore, boundary features of each layered region can be extracted based on the grayscale value changes at the boundaries of different layered regions, and the boundary curves of the corresponding layered regions can be fitted to determine the geometry of each layered region. Refractory layer 601 is the lining material of the rotary kiln. In the same kiln interior image, the geometric center of refractory layer 601 overlaps with the geometric center of the rotary kiln. Therefore, the geometric center of refractory layer 601 can be determined based on its geometry, and then, combined with the radial dimension of refractory layer 601 in the kiln interior image, the kiln interior axis position can be determined as O. If the kiln wall region in the kiln interior image also includes the kiln shell layer, the geometry of the kiln shell layer can also be determined. The geometry of the kiln shell layer is the geometry of the rotary kiln. In this case, the geometric center of the rotary kiln can be determined, and then, combined with the radial dimensions of the rotary kiln in the kiln interior image, the position of the kiln's axial center can be determined as O.

[0054] Step 502: Based on the kiln's axial center position and the kiln image, determine a tangent circle that is tangent to at least one target position on the inner wall of the kiln's ring layer. The center of the tangent circle is the kiln's axial center position. The aforementioned target position can be one, two, or multiple, depending on the actual situation; no specific limitation is made here.

[0055] like Figure 6B As shown, a tangent circle can be determined with the kiln's axial center position O as the center and any target position included in the inner wall of the kiln's ring layer as the tangent point. When there are multiple target positions, a corresponding number of tangent circles can be determined. For example, in an exemplary embodiment of this disclosure, with the kiln's axial center position O as the center and target positions A and B included in the inner wall of the kiln's ring layer as tangent points, tangent circles 601 and 602 tangent to these two target positions are determined.

[0056] Step 503: Determine the radial dimension of the ring layer inside the kiln based on the radial dimension of the tangent circle that is tangent to at least one target position. The more tangent circles determined in Step 502 that are tangent to the inner wall of the ring layer inside the kiln, with the kiln's axial center as the center and the target position as the tangent point, the more accurate the radial dimension of the ring layer inside the kiln determined based on these tangent circles will be, and the closer it will be to the actual radial dimension of the ring layer inside the kiln.

[0057] In the method of the exemplary embodiments of this disclosure, it can be assumed that the radial dimension of the tangent circle is the radial dimension d of the ring layer inside the kiln, dmin≤d≤dmax, dmin is the radial dimension of the tangent circle with the smallest radial dimension among the tangent circles tangent to at least one target position, and dmax is the radial dimension of the tangent circle with the largest radial dimension among the tangent circles tangent to at least one target position.

[0058] If the number of tangent circles is n, then i is an integer greater than or equal to 1 and less than or equal to n, d i Let x be the radial dimension of the i-th tangent circle. i Let x be the weighting coefficient for the radial dimension of the i-th tangent circle, 0 ≤ x i ≤1.

[0059] like Figure 6B As shown, the number of tangent circles is n=2. Assuming the radial dimensions of tangent circles 601 and 602 are d1 and d2 respectively, then the radial dimension of the ring layer inside the kiln is d = (x1×d1 + x2×d2) / 2. Furthermore, from... Figure 6BIt can also be seen that d1 is the radial dimension of the tangent circle 601 tangent to the target position A within the inner wall of the kiln's ring layer. The distance between the target position A and the kiln's central axis is the largest, the ring layer thickness at target position A is smaller, and the radial dimension of the tangent circle 601 is also the largest. d2 is the radial dimension of the tangent circle 602 tangent to the target position B within the kiln's ring layer. The distance between the target position B and the kiln's central axis is the smallest, the ring layer thickness at target position B is larger, and the radial dimension of the tangent circle 602 is also the smallest. In this case, d1 = dmax, d2 = dmin. When 0 ≤ x i When ≤1, d2≤d≤d1.

[0060] For example, the radial dimension of the ring layer inside the kiln is the average radial dimension of the tangent circles that are tangent to the n target locations.

[0061] like Figure 6B As shown, the radial dimension of the ring layer inside the kiln is d = (x1×d1 + x2×d2) / 2, let x i =1, then d = (d1+d2) / 2. At this time, the radial dimension of the ring layer inside the kiln is the average of the radial dimensions of the tangent circles that are tangent to the two target positions.

[0062] For example, if dmin≤d i If x ≤ (dmax - dmin) / 2, then x i =1; if d i >(dmax-dmin) / 2, x i <1.

[0063] from Figure 6B It can be seen that the inner wall of the ring layer inside the kiln is uneven, and the thickness of the ring layer is not uniform. Therefore, the exemplary embodiment of this disclosure can assign different weights to different ring thicknesses to ensure that the accuracy of the evaluation results can be improved when the radial dimension of the finally determined ring layer inside the kiln is used to evaluate the degree of ring formation. Since the gravity load inside the rotary kiln is easily affected by the thickness of the ring layer, and the furnace charge does not flow smoothly in areas with a larger ring layer thickness, thus reducing the production efficiency of the rotary kiln, in the method of the exemplary embodiment of this disclosure, if dmin≤d i If the distance between this location and the kiln's central axis is less than or equal to (dmax-dmin) / 2, it indicates that the thickness of the ring layer is greater, and the radial dimension of the i-th tangent circle has a significant impact on the overall ring formation within the kiln. Therefore, the weighting coefficient of the radial dimension of the i-th tangent circle should be larger, such as x. i =1; if d iIf the distance is greater than (dmax-dmin) / 2, it indicates that the greater the distance between this position and the center position inside the kiln, the smaller the thickness of the ring layer. The radial dimension of the i-th tangent circle has a smaller impact on the overall ring formation within the kiln. Therefore, the weighting coefficient of the radial dimension of the i-th tangent circle is smaller, such as x. i <1.

[0064] In one alternative approach, the method of the exemplary embodiment of this disclosure may further include: issuing an alarm prompt when it is determined that the degree of knotting is greater than or equal to a preset degree of knotting.

[0065] The aforementioned preset ring-forming degree can be a threshold determined by relevant technicians based on experience. When the ring-forming degree is less than the preset degree, the ring formation is relatively minor, the furnace charge flows smoothly, and the impact on the normal production of the rotary kiln is minimal. When the ring-forming degree is greater than or equal to the preset degree, an alarm can be issued to remind relevant personnel to clean the rings in the kiln in a timely manner, so as to ensure the normal production operation of the rotary kiln and extend the service life of the furnace lining.

[0066] One or more technical solutions provided in the exemplary embodiments of this disclosure can acquire images of the inside of a rotary kiln, determine the radial dimensions of the ring-forming layer inside the kiln based on the images, and then determine the degree of ring formation based on the radial dimensions of the ring-forming layer and a preset radial dimension inside the kiln. It is evident that the method of the exemplary embodiments of this disclosure can automatically determine the degree of ring formation inside a rotary kiln using images of the inside of the kiln, effectively ensuring the real-time nature and accuracy of the ring formation degree, thereby providing a strong guarantee for the normal production operation of the rotary kiln.

[0067] The foregoing primarily describes the solutions provided by the embodiments of this disclosure from the perspective of the terminal. It is understood that, in order to achieve the above functions, the terminal includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0068] This disclosure embodiment can divide the terminal into functional units according to the above method example. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this disclosure embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0069] In the case of dividing each functional module according to its corresponding functions, an exemplary embodiment of this disclosure provides a looping degree detection device, which can be a terminal or a chip applied to the terminal. Figure 7 A schematic block diagram of a coiling degree detection device according to an exemplary embodiment of the present disclosure is shown. Figure 7 As shown, the device 700 includes:

[0070] The acquisition module 701 is used to acquire images inside the rotary kiln;

[0071] The determination module 702 is used to determine the radial dimensions of the kiln ring layer based on the kiln image;

[0072] The determining module 702 is also used to determine the degree of ring formation based on the radial dimensions of the ring layer inside the kiln and the preset radial dimensions inside the kiln.

[0073] As one possible implementation, the kiln interior image is a cross-sectional image of the inside of a rotary kiln.

[0074] As one possible implementation, the kiln interior image is an image acquisition device located on the outside of the kiln tail of the rotary kiln, with the image acquisition device situated on the central axis of the rotary kiln.

[0075] As one possible implementation, the kiln interior image includes the kiln wall area and the kiln interior area, and the area ratio of the kiln interior image in the image frame where the kiln interior image is located is greater than or equal to a preset ratio threshold.

[0076] As one possible implementation, the determining module 702 is further configured to determine the kiln center position based on the kiln image and the radial dimensions of the rotary kiln; based on the kiln center position and the kiln image, determine a tangent circle that is tangent to at least one target position included in the inner wall of the kiln ring layer, the center of the tangent circle being the kiln center position; and based on the radial dimensions of the tangent circle that is tangent to at least one target position, determine the radial dimensions of the kiln ring layer.

[0077] As one possible implementation, the radial dimension of the tangent circle is the radial dimension d of the ring layer inside the kiln, dmin≤d≤dmax, where dmin is the radial dimension of the tangent circle with the smallest radial dimension among the tangent circles tangent to at least one target position, and dmax is the radial dimension of the tangent circle with the largest radial dimension among the tangent circles tangent to at least one target position.

[0078] As one possible implementation, if the number of tangent circles is n, then i is an integer greater than or equal to 1 and less than or equal to n, d i Let x be the radial dimension of the i-th tangent circle. i Let x be the weighting coefficient for the radial dimension of the i-th tangent circle, 0 ≤ x i ≤1.

[0079] As one possible implementation, if dmin ≤ d i If x ≤ (dmax - dmin) / 2, then x i =1, if d i If x > (dmax - dmin) / 2, then x i <1;

[0080] The radial dimension of the ring layer inside the kiln is the average of the radial dimensions of the tangent circles that are tangent to the n target positions.

[0081] As one possible implementation, the device 700 further includes: a prompting module 703, used to issue an alarm prompt when it is determined that the degree of knotting is greater than or equal to a preset degree of knotting.

[0082] Figure 8 A schematic block diagram of a chip according to an exemplary embodiment of this disclosure is shown. (As follows) Figure 8 As shown, the chip 800 includes one or more (including two) processors 801 and a communication interface 802. The communication interface 802 can support the server in performing the data transmission and reception steps in the above method, and the processor 801 can support the server in performing the data processing steps in the above method.

[0083] Optional, such as Figure 8 As shown, the chip 800 also includes a memory 803, which may include read-only memory and random access memory, and provides operation instructions and data to the processor. A portion of the memory may also include non-volatile random access memory (NVRAM).

[0084] In some implementations, such as Figure 8As shown, processor 801 executes corresponding operations by calling operation instructions stored in memory (which may be stored in the operating system). Processor 801 controls the processing operations of any terminal device; processor can also be called a central processing unit (CPU). Memory 803 may include read-only memory and random access memory, and provides instructions and data to processor 801. A portion of memory 803 may also include NVRAM. For example, in applications, memory, communication interfaces, and other components are coupled together via a bus system, which may include, in addition to a data bus, a power bus, a control bus, and a status signal bus, etc. However, for clarity, in... Figure 8 The general labeled all buses as Bus System 804.

[0085] The methods disclosed in the embodiments of this disclosure can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above methods can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, a digital signal processor (DSP), an ASIC, a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this disclosure. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this disclosure can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory; the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above methods.

[0086] Exemplary embodiments of this disclosure also provide an electronic device, including: at least one processor; and a memory communicatively connected to the at least one processor. The memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to cause the electronic device to perform a method according to an embodiment of this disclosure.

[0087] Exemplary embodiments of this disclosure also provide a non-transitory computer-readable storage medium storing a computer program, wherein the computer program, when executed by a computer's processor, is used to cause the computer to perform a method according to embodiments of this disclosure.

[0088] Exemplary embodiments of this disclosure also provide a computer program product, including a computer program, wherein, when executed by a processor of a computer, the computer program is used to cause the computer to perform a method according to an embodiment of this disclosure.

[0089] refer to Figure 9 The present invention describes a structural block diagram of an electronic device 900 that can serve as a server or client of the present disclosure, which is an example of a hardware device that can be applied to various aspects of the present disclosure. The electronic device is intended to represent various forms of digital electronic computer devices, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the present disclosure described and / or claimed herein.

[0090] like Figure 9 As shown, the electronic device 900 includes a computing unit 901, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 902 or a computer program loaded from a storage unit 908 into a random access memory (RAM) 903. The RAM 903 may also store various programs and data required for the operation of the device 900. The computing unit 901, ROM 902, and RAM 903 are interconnected via a bus 904. An input / output (I / O) interface 905 is also connected to the bus 904.

[0091] Multiple components in electronic device 900 are connected to I / O interface 905, including: input unit 906, output unit 907, storage unit 908, and communication unit 909. Input unit 906 can be any type of device capable of inputting information to electronic device 900. Input unit 906 can receive input digital or character information and generate key signal inputs related to user settings and / or function control of electronic device. Output unit 907 can be any type of device capable of presenting information and may include, but is not limited to, a display, speaker, video / audio output terminal, vibrator, and / or printer. Storage unit 908 may include, but is not limited to, disk and optical disk. Communication unit 909 allows electronic device 900 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks, and may include, but is not limited to, modems, network cards, infrared communication devices, wireless communication transceivers and / or chipsets, such as Bluetooth™ devices, WiFi devices, WiMax devices, cellular communication devices, and / or the like.

[0092] like Figure 9 As shown, computing unit 901 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of computing unit 901 include, but are not limited to, central processing unit (CPU), graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Computing unit 901 performs the various methods and processes described above. For example, in some embodiments, the methods of exemplary embodiments of this disclosure can be implemented as computer software programs tangibly contained in a machine-readable medium, such as storage unit 908. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 900 via ROM 902 and / or communication unit 909. In some embodiments, computing unit 901 can be configured to perform methods by any other suitable means (e.g., by means of firmware).

[0093] The program code used to implement the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a machine, partially on a machine, as a standalone software package partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0094] In the context of this disclosure, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can be, 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 machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0095] As used in this disclosure, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, device, and / or apparatus (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including machine-readable media that receive machine instructions as machine-readable signals. The term "machine-readable signal" refers to any signal for providing machine instructions and / or data to a programmable processor.

[0096] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0097] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with embodiments of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0098] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. Client-server relationships are created by computer programs running on the respective computers and having a client-server relationship with each other.

[0099] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this disclosure are performed, in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a terminal, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center integrating one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video disc (DVD); or it can be a semiconductor medium, such as a solid-state drive (SSD).

[0100] Although this disclosure has been described in conjunction with specific features and embodiments, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of this disclosure. Accordingly, this specification and drawings are merely exemplary illustrations of the disclosure as defined by the appended claims and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this disclosure. It is obvious that those skilled in the art can make various alterations and modifications to this disclosure without departing from its spirit and scope. Thus, this disclosure is also intended to include any such modifications and modifications that fall within the scope of the claims of this disclosure and their equivalents.

Claims

1. A method for detecting the degree of ring formation, characterized in that, The method includes: Obtain an image of the inside of the rotary kiln; the image of the inside of the kiln is a cross-sectional image of the inside of the rotary kiln. The position of the kiln's axis is determined based on the kiln interior image and the radial dimensions of the rotary kiln; Based on the kiln's axial center position and the kiln's internal image, a tangent circle is determined that is tangent to at least one target position on the inner wall of the kiln's ring layer, and the center of the tangent circle is the kiln's axial center position. The radial dimension of the ring layer inside the kiln is determined based on the radial dimension of the tangent circle that is tangent to the at least one target location; The degree of ring formation is determined based on the radial dimensions of the ring-forming layer inside the kiln and the preset radial dimensions inside the kiln. The radial dimension of the tangent circle is the radial dimension d of the kiln ring layer, dmin≤d≤dmax, dmin is the radial dimension of the tangent circle with the smallest radial dimension among the tangent circles that are tangent to the at least one target position, and dmax is the radial dimension of the tangent circle with the largest radial dimension among the tangent circles that are tangent to the at least one target position. If the number of tangent circles is n, then , i is an integer greater than or equal to 1 and less than or equal to n, d i Let x be the radial dimension of the i-th tangent circle. i Let x be the weighting coefficient for the radial dimension of the i-th tangent circle, 0 ≤ x i ≤1.

2. The method according to claim 1, characterized in that, The kiln interior image is an image acquired by an image acquisition device located outside the kiln tail of the rotary kiln, and the image acquisition device is located on the central axis of the rotary kiln.

3. The method according to claim 1, characterized in that, The kiln interior image includes the kiln wall area and the kiln interior area, and the area ratio of the kiln interior image to the image frame in which the kiln interior image is located is greater than or equal to a preset ratio threshold.

4. The method according to claim 1, characterized in that, If dmin≤d i If x ≤ (dmax - dmin) / 2, then x i =1, if d i If x > (dmax - dmin) / 2, then x i <1; or, The radial dimension of the ring layer inside the kiln is the average of the radial dimensions of the tangent circles that are tangent to the n target positions.

5. The method according to claim 1, characterized in that, The method further includes: If the degree of knotting is determined to be greater than or equal to the preset degree of knotting, an alarm will be issued.

6. A device for detecting the degree of ring formation, characterized in that, The device includes: The acquisition module is used to acquire images inside the rotary kiln; the images inside the kiln are cross-sectional images of the rotary kiln. The determination module is used to determine the kiln's axial center position based on the kiln interior image and the radial dimensions of the rotary kiln; based on the kiln's axial center position and the kiln interior image, determine a tangent circle that is tangent to at least one target position included in the inner wall of the kiln's ring layer, the center of the tangent circle being the kiln's axial center position; and based on the radial dimensions of the tangent circle tangent to the at least one target position, determine the radial dimensions of the kiln's ring layer. The determining module is also used to determine the degree of ring formation based on the radial dimension of the ring layer inside the kiln and the preset radial dimension inside the kiln. The radial dimension of the tangent circle is the radial dimension d of the kiln ring layer, dmin≤d≤dmax, dmin is the radial dimension of the tangent circle with the smallest radial dimension among the tangent circles that are tangent to the at least one target position, and dmax is the radial dimension of the tangent circle with the largest radial dimension among the tangent circles that are tangent to the at least one target position. If the number of tangent circles is n, then , i is an integer greater than or equal to 1 and less than or equal to n, d i Let x be the radial dimension of the i-th tangent circle. i Let x be the weighting coefficient for the radial dimension of the i-th tangent circle, 0 ≤ x i ≤1.

7. An electronic device, characterized in that, include: processor; as well as, Memory for stored programs; The program includes instructions that, when executed by the processor, cause the processor to perform the method according to any one of claims 1 to 5.

8. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to perform the method according to any one of claims 1 to 5.

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