Method, control device, storage medium and system for calcium carbide liquid level identification

Abstract

The embodiment of the present invention provides a method, a control device, a storage medium and a system for identifying the calcium carbide liquid level, which belongs to the technical field of calcium carbide production. The method for identifying the calcium carbide liquid level comprises: using a thermal imaging device installed near the calcium carbide pot container to obtain an image of the current calcium carbide liquid level; performing image recognition on the obtained image of the current calcium carbide liquid level to obtain characteristic information of the current calcium carbide liquid level; and identifying the current calcium carbide liquid level through the obtained characteristic information of the current calcium carbide liquid level. The embodiment of the present invention can accurately identify the liquid level of the calcium carbide pot container, avoid calcium carbide loss caused by calcium carbide liquid overflow, so as to improve the economic benefits of calcium carbide production; the embodiment of the present invention can also automatically determine whether the calcium carbide pot container is full, which solves the key technology for the factory to realize the automation of calcium carbide furnace pulling, so that the factory can easily realize the automation of pulling.

Description

Technical Field

[0001] The present invention relates to the technical field of calcium carbide production, and in particular to a method, a control device, a storage medium and a system for identifying calcium carbide liquid level. Background Art

[0002] When calcium carbide is being taken out of the furnace, calcium carbide liquid with a temperature of up to 2000°C will flow into the calcium carbide pot. Since the calcium carbide liquid is in a high temperature state, it will emit a dazzling glare and produce thick volatile smoke, making it impossible to see the liquid level in the container. The prior art manually uses an iron hook to dip into the calcium carbide liquid in the calcium carbide pot, removes the smoke position to observe whether there is molten liquid on the iron hook and how much molten liquid is stuck, so as to judge the liquid level of the calcium carbide liquid in the container and estimate whether it is full.

[0003] The disadvantages of the prior art include, for example: 1) The temperature of calcium carbide liquid is as high as 2000°C, which may splash out and cause burns; workers need to wear protective clothing when working near the calcium carbide pot, and the working environment is harsh; 2) The high-temperature calcium carbide liquid emits a dazzling glare, which is harmful to human eyes, and workers usually have to wear protective glasses; 3) The above-mentioned method of dipping with an iron hook cannot accurately determine the liquid level. Therefore, calcium carbide liquid often overflows from the calcium carbide pot, causing calcium carbide waste; and the outflowing calcium carbide liquid must be cleaned manually, increasing the workload of workers; 4) It is impossible to realize the automation of the calcium carbide production system. Furthermore, even if a method of measuring the liquid level is used, such as a laser sensor, a level meter, etc., it is impossible to determine the liquid level of the calcium carbide liquid in the container and estimate whether it is full due to excessive smoke and high temperature. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide a method for identifying the level of calcium carbide liquid, which can automatically and accurately identify the level of calcium carbide liquid.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a method for identifying calcium carbide liquid level, and the method for identifying calcium carbide liquid level includes: using a thermal imaging device installed near the calcium carbide pot container to obtain an image of the current calcium carbide liquid level; performing image recognition on the obtained image of the current calcium carbide liquid level to obtain characteristic information of the current calcium carbide liquid level; and identifying the current calcium carbide liquid level through the obtained characteristic information of the current calcium carbide liquid level.

[0006] Optionally, after obtaining the image of the current calcium carbide liquid level, the method for calcium carbide liquid level identification also includes: using the RGB values ​​of the liquid surface, smoke and background to distinguish the liquid surface image, smoke image and background image in the image of the current calcium carbide liquid surface; and extracting the liquid surface image in the image of the current calcium carbide liquid surface.

[0007] Optionally, after obtaining the image of the current calcium carbide liquid level, the method for calcium carbide liquid level identification also includes: obtaining a full pot image of the calcium carbide pot container from a preset calcium carbide liquid level image database; and using a preset image comparison method to determine whether the calcium carbide pot container is full by comparing the image of the current calcium carbide liquid level with the full pot image.

[0008] Optionally, the characteristic information includes the area of ​​the current calcium carbide liquid surface, and the image recognition is performed on the acquired image of the current calcium carbide liquid surface to obtain the characteristic information of the current calcium carbide liquid surface, including: pixel labeling of the acquired image of the current calcium carbide liquid surface; and inputting the pixel-labeled image into a preset image recognition model to obtain the area of ​​the current calcium carbide liquid surface.

[0009] Optionally, before identifying the current calcium carbide liquid level through the obtained characteristic information of the current calcium carbide liquid level, the method for identifying the calcium carbide liquid level also includes: calibrating multiple liquid point locations of the calcium carbide pot container, each liquid point location corresponding to a liquid level height; for each liquid point location, obtaining the corresponding liquid level measurement area; and determining the correspondence between the preset liquid level height and the liquid surface area of ​​the calcium carbide pot container based on each liquid point location and the corresponding liquid surface measurement area, so as to identify the current calcium carbide liquid level based on the correspondence between the preset liquid level height and the liquid surface area and through the obtained area of ​​the current calcium carbide liquid surface.

[0010] Optionally, the method for identifying calcium carbide liquid level also includes: calibrating multiple liquid point locations of the calcium carbide pot container, each liquid point location corresponding to a liquid level height; for any two liquid point locations, obtaining the corresponding volume of calcium carbide liquid flowing into the calcium carbide pot container; and based on the change in liquid level height and the corresponding change in calcium carbide liquid volume, determining the correspondence between the change in liquid level height of the calcium carbide pot container and the change in the volume of the calcium carbide liquid, so as to determine the time when the calcium carbide pot container is full based on the correspondence between the change in liquid level height and the change in the volume of the calcium carbide liquid and by obtaining the inflow speed.

[0011] An embodiment of the present invention also provides a control device for identifying calcium carbide liquid level, the control device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the above-mentioned method for identifying calcium carbide liquid level.

[0012] An embodiment of the present invention further provides a machine-readable storage medium, on which instructions are stored, and the instructions enable a machine to execute the above-mentioned method for identifying calcium carbide liquid level.

[0013] An embodiment of the present invention also provides a pot-pulling system for a calcium carbide pot, the pot-pulling system for a calcium carbide pot comprising an electric furnace, a plurality of calcium carbide pot containers, a pot-pulling operating device, the above-mentioned control device and a thermal imaging device, the pot-pulling operating device comprising a plurality of carriages connected in series for placing calcium carbide pot containers and a power device arranged at both ends of the plurality of carriages, one calcium carbide pot container being placed in each carriage, the electric furnace being filled with calcium carbide liquid, and calcium carbide liquid flowing into the calcium carbide pot container located at a preset position of the furnace eye through a furnace eye configured therein, the thermal imaging device being installed near the calcium carbide pot container at the preset position of the furnace eye to obtain an image of the current calcium carbide liquid level of the calcium carbide pot container, and identifying the current calcium carbide liquid level of the calcium carbide pot container through the control device.

[0014] Optionally, the control device is also used to: when the identified current calcium carbide liquid level shows that the calcium carbide pot container is full, control the power device to move the next calcium carbide pot container to the preset position of the furnace eye; and after the next calcium carbide pot container moves to the preset position of the furnace eye, control the furnace eye to open so that calcium carbide liquid flows into the next calcium carbide pot container.

[0015] Through the above technical scheme, the embodiment of the present invention uses a thermal imaging device installed near the calcium carbide pot container to obtain an image of the calcium carbide liquid surface in real time; performs image recognition on the image of the current calcium carbide liquid surface obtained to obtain characteristic information of the current calcium carbide liquid surface; and automatically identifies the current calcium carbide liquid level through the characteristic information of the current calcium carbide liquid surface obtained. The embodiment of the present invention can accurately identify the liquid level of the calcium carbide pot container, avoid calcium carbide loss caused by calcium carbide liquid overflow, and improve the economic benefits of calcium carbide production; the embodiment of the present invention can also automatically determine whether the calcium carbide pot container is full, which solves the key technology for the factory to realize the automation of calcium carbide furnace pulling pot, so that the factory can easily realize the automation of pot pulling; further, the embodiment of the present invention can keep the staff away from dangerous environments such as high temperature, glare, dust, etc., and avoid risks such as burns.

[0016] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic flow chart of a method for identifying calcium carbide liquid level provided by an embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of an example electric stone pot container and a thermal imaging device;

[0020] Figure 3 is a schematic diagram of an example of identifying an image of the current calcium carbide liquid level;

[0021] Figure 4 It is a schematic diagram of the corresponding relationship between the liquid level height and the liquid surface area;

[0022] Figure 5 It is a schematic diagram for judging whether the calcium stone pot container is full;

[0023] Figure 6 It is a schematic diagram of the structure of a system for identifying calcium carbide liquid level provided by an embodiment of the present invention;

[0024] Figure 7 is a schematic diagram of the mechanism of a pot pulling system for an electric stone pot provided in an embodiment of the present invention; and

[0025] Figure 8 Example schematic diagram of the mechanism of the pot pulling system for an electric stone pot.

[0026] Description of Reference Numerals

[0027] 10 calcium stone pot container 20 thermal imaging device

[0028] 30Control device for calcium carbide level identification 40Submerged arc furnace

[0029] 50 pan-pulling device 51 power device

[0030] 52 carriages. DETAILED DESCRIPTION

[0031] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0032] Figure 1 This is a flow chart of a method for identifying calcium carbide liquid level provided by an embodiment of the present invention. Please refer to Figure 1 and Figure 2 For example, the method for identifying calcium carbide level may include the following steps:

[0033] Step S110: using the thermal imaging device 20 installed near the calcium carbide pot container 10, to obtain an image of the current calcium carbide liquid level.

[0034] The thermal imaging device 20 is, for example, an infrared camera, an infrared thermal imager, etc. Figure 2, the thermal imaging device 20 can be installed obliquely near the calcium carbide pot container 10 and avoid the high temperature area. A smoke hood may be provided above the calcium carbide pot container 10. Therefore, when the thermal imaging device 20 is installed, its imaging can be considered to avoid the position of the smoke hood. The density of calcium carbide liquid is large and the temperature is high, while the density of smoke is low and it will quickly cool down during the volatilization and expansion process. Therefore, the thermal imaging device 20 can better distinguish the liquid level and smoke of calcium carbide liquid. The embodiment of the present invention utilizes the thermal imaging device 20 installed near the calcium carbide pot container 10 to obtain the image of the calcium carbide liquid surface in real time.

[0035] Preferably, after step S110, the method for identifying calcium carbide liquid level may further include: using the RGB values ​​of the liquid surface, smoke and background to distinguish the liquid surface image, smoke image and background image in the image of the current calcium carbide liquid surface; and extracting the liquid surface image in the image of the current calcium carbide liquid surface.

[0036] Following the above example, although infrared thermal imaging can distinguish between calcium carbide liquid surface, smoke and background, the imaging contrast is low. Therefore, the embodiment of the present invention preferably uses the RGB values ​​of the liquid surface, smoke and background to distinguish the liquid surface image, smoke image and background image in the current calcium carbide liquid surface image. For example, after using the thermal imaging device 20 to obtain the image of the current calcium carbide liquid surface, the image is converted into a pixel map, and the RGB value of each pixel in the image is used to distinguish whether the pixel belongs to the liquid surface image, smoke image or background image; on this basis, the pixels belonging to the liquid surface image are extracted to obtain the liquid surface image.

[0037] Step S120: performing image recognition on the acquired image of the current calcium carbide liquid level to obtain characteristic information of the current calcium carbide liquid level.

[0038] The characteristic information preferably in the embodiment of the present invention may include the area of ​​the current calcium carbide liquid level.

[0039] Preferably, step S120 may include: performing pixel annotation on the acquired image of the current calcium carbide liquid surface; and inputting the pixel-annotated image into a preset image recognition model to obtain the area of ​​the current calcium carbide liquid surface.

[0040] Please refer to Figure 2 The image of the current calcium carbide liquid level obtained by the thermal imaging device 20 (for example, an infrared thermal imager) is a partial image of the current calcium carbide liquid level in the calcium carbide pot container 10, and as the calcium carbide pot liquid level rises, the image corresponding to the liquid level obtained by the thermal imaging device 20 will gradually become larger. Therefore, the embodiment of the present invention performs pixel annotation on the image of the current calcium carbide liquid level obtained, and inputs the pixel-annotated image into a preset image recognition model, and the following can be obtained: Figure 3The complete image of the current calcium carbide liquid surface shown in the figure is obtained, and its area is calculated. Wherein, the preset image recognition model can be a trained neural network model, which is used to obtain the complete image and area of ​​the corresponding calcium carbide liquid surface through the partial image of the calcium carbide liquid surface. It should be noted that other methods can also be used to obtain the area of ​​the current calcium carbide liquid surface through the image of the current calcium carbide liquid surface. The embodiment of the present invention does not limit the method of using the preset image recognition model. For example, according to the shape of the calcium carbide pot container 10, the partial image of the current calcium carbide liquid surface can be filled to obtain the complete image of the corresponding calcium carbide liquid surface and calculate its area.

[0041] Preferably, the characteristic information may also include width, etc. For example, for a calcium carbide pot container 10 of a regular shape (eg, circular), image recognition may be performed on the image of the current calcium carbide liquid surface to obtain the width (ie, diameter) of the current calcium carbide liquid surface.

[0042] Step S130: Identify the current calcium carbide liquid level through the obtained characteristic information of the current calcium carbide liquid level.

[0043] Preferably, step S130 may include: based on the correspondence between the preset liquid level height and the liquid surface area of ​​the calcium carbide pot container 10, identifying the current calcium carbide liquid level by obtaining the area of ​​the current calcium carbide liquid surface.

[0044] Further preferably, before identifying the current calcium carbide liquid level through the obtained characteristic information of the current calcium carbide liquid level, the method for identifying the calcium carbide liquid level may also include: calibrating multiple liquid point locations of the calcium carbide pot container 10, each liquid point location corresponding to a liquid level height; for each of the liquid point locations, obtaining the corresponding liquid level measurement area; and determining the correspondence between the preset liquid level height and the liquid surface area of ​​the calcium carbide pot container 10 based on each liquid point location and the corresponding liquid surface measurement area, so as to identify the current calcium carbide liquid level based on the correspondence between the preset liquid level height and the liquid surface area and through the obtained area of ​​the current calcium carbide liquid surface.

[0045] Please refer to Figure 4 , calibrate multiple liquid points of the example electric stone pot container 10, for example, Figure 43 liquid point locations in the figure, and the liquid level height corresponding to each liquid point location is, for example, (h1, h2, h3); obtain the liquid surface measurement area corresponding to the 3 liquid point locations, for example, (S1, S2, S3); perform linear fitting through the three groups of data (h1, S1), (h2, S2), and (h3, S3). For example, through the linear equation h=ks+b, using the least squares fitting algorithm, the parameters k and b of the linear equation are obtained, and then the corresponding relationship between the preset liquid level height and the liquid surface area can be obtained, that is, the linear relationship between the liquid level height h and the liquid surface area S. Furthermore, based on the above-mentioned corresponding relationship between the preset liquid level height and the liquid surface area, the current calcium carbide liquid level h is identified through the obtained area S of the current calcium carbide liquid surface.

[0046] Preferably, the method for identifying the calcium carbide liquid level may further include: judging whether the calcium carbide pot container 10 is full by identifying the current calcium carbide liquid level h. That is, if the current calcium carbide liquid level h is equal to the full pot liquid level h of the calcium carbide pot container 10, F , it is determined that the calcium carbide pot container 10 is full.

[0047] Preferably, the method for identifying calcium carbide liquid level may also include: calibrating multiple liquid point locations of the calcium carbide pot container 10, each liquid point location corresponding to a liquid level height; for any two liquid point locations, obtaining the corresponding volume of calcium carbide liquid flowing into the calcium carbide pot container 10; and based on the change in liquid level height and the corresponding change in calcium carbide liquid volume, determining the correspondence between the change in liquid level height of the calcium carbide pot container 10 and the change in the volume of the calcium carbide liquid, so as to determine the time when the calcium carbide pot container 10 is filled based on the correspondence between the change in liquid level height and the change in the volume of the calcium carbide liquid, and by obtaining the inflow speed.

[0048] As in the above example, multiple liquid points of the example electric stone pot container 10 are calibrated, for example, Figure 4 There are three liquid point locations in the graph, and the liquid level height corresponding to each liquid point location is, for example, (h1, h2, h3); for any two liquid point locations, the corresponding volume of the calcium carbide liquid flowing into the calcium carbide pot container 10 is obtained; by curve fitting. For example, through the curve equation h=f(Δv), the least squares fitting algorithm is used to obtain the curve equation, that is, the corresponding relationship between the change in the liquid level height of the calcium carbide pot container 10 and the change in the volume of the calcium carbide liquid. Furthermore, based on the corresponding relationship between the above-mentioned change in the liquid level height and the change in the volume of the calcium carbide liquid, and by obtaining the inflow speed, the time when the calcium carbide pot container 10 is filled is determined to control the time for obtaining the image of the calcium carbide liquid surface next time, and to perform liquid level recognition to improve efficiency.

[0049] Furthermore, based on the corresponding relationship between the above-mentioned change in liquid level height and the change in volume of calcium carbide liquid, the inflow speed can also be adaptively adjusted.

[0050] Preferably, after step S110, the method for identifying the calcium carbide liquid level may further include: judging whether the calcium carbide pot container 10 is full by acquiring an image of the current calcium carbide liquid level.

[0051] Further preferably, judging whether the calcium carbide pot container 10 is full by obtaining the image of the current calcium carbide liquid level may include: obtaining a full pot image of the calcium carbide pot container 10 from a preset calcium carbide liquid level image database; and judging whether the calcium carbide pot container 10 is full by comparing the image of the current calcium carbide liquid level with the full pot image using a preset image comparison method.

[0052] For example, the full pot images of all calcium carbide pot containers 10 are obtained; the full pot images of each calcium carbide pot container 10 and the corresponding calcium carbide pot container 10 identification (i.e., unique code) are stored in the preset calcium carbide liquid surface image database. After the current calcium carbide liquid surface image is obtained, the corresponding full pot image is obtained from the preset calcium carbide liquid surface image database through the identification of the calcium carbide pot container 10, such as Figure 5 As shown in (a), for comparison, Figure 5 (b) shows an image of a partially full pot; then, by using a preset image comparison method, by comparing the image of the current calcium carbide liquid level and the full pot image, it is determined whether the calcium carbide pot container 10 is full. Among them, the preset image comparison method is, for example, a perceptual hash image comparison method. The perceptual hash image comparison method may include: respectively calculating the hash values ​​corresponding to the image of the current calcium carbide liquid level and the full pot image (the hash values ​​are used to represent the characteristics of the corresponding images), and performing a similarity comparison through the calculated hash values ​​to determine whether the calcium carbide pot container 10 is full. It should be noted that the embodiment of the present invention can also use other image comparison methods to compare the similarity between the current calcium carbide liquid level image and the full pot image to determine whether the calcium carbide pot container 10 is full. When the calcium carbide pot container 10 is full, a full pot signal can be sent; after the automatic pot-pulling system obtains the full pot signal, it will automatically move to the next pot.

[0053] Optionally, judging whether the calcium carbide pot container is full by acquiring an image of the current calcium carbide liquid level may also include: acquiring a full pot image and a non-full pot image of the calcium carbide pot container; labeling the acquired full pot image and non-full pot image; inputting the labeled image into a preset model for training to obtain a trained model; and judging whether the acquired image of the current calcium carbide liquid level is a full pot image by using the trained model.

[0054] Accordingly, the embodiment of the present invention utilizes the thermal imaging device 20 installed near the calcium carbide pot container 10 to obtain the image of the calcium carbide liquid surface in real time; performs image recognition on the image of the current calcium carbide liquid surface obtained to obtain the characteristic information of the current calcium carbide liquid surface; and automatically identifies the current calcium carbide liquid level through the characteristic information of the current calcium carbide liquid surface obtained. The embodiment of the present invention can accurately identify the liquid level of the calcium carbide pot container 10, avoid the loss of calcium carbide caused by the overflow of calcium carbide liquid, and improve the economic benefits of calcium carbide production; the embodiment of the present invention can also automatically determine whether the calcium carbide pot container 10 is full, which solves the key technology for the factory to realize the automation of calcium carbide furnace pulling, so that the factory can easily realize the automation of pulling; further, the embodiment of the present invention can enable the staff to escape from dangerous environments such as high temperature, glare, dust, etc., and avoid the risk of burns.

[0055] An embodiment of the present invention also provides a control device 30 for identifying calcium carbide liquid level, the control device 30 comprising: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the above-mentioned method for identifying calcium carbide liquid level.

[0056] An embodiment of the present invention further provides a machine-readable storage medium, on which instructions are stored, and the instructions enable a machine to execute the above-mentioned method for identifying calcium carbide liquid level.

[0057] Figure 6 This is a schematic diagram of the system structure for calcium carbide liquid level identification provided by an embodiment of the present invention, please refer to Figure 6 The system for identifying calcium carbide liquid level may include the control device 30 and thermal imaging device 20 for identifying calcium carbide liquid level.

[0058] By way of example, the system for identifying the calcium carbide level may include a thermal imaging device 20 installed near the calcium carbide pot container 10; and a control device 30 for identifying the calcium carbide level, electrically connected to the thermal imaging device 20. The thermal imaging device 20 is used to obtain an image of the calcium carbide liquid surface in real time; the control device 30 is used to: perform image recognition on the image of the current calcium carbide liquid surface obtained to obtain characteristic information of the current calcium carbide liquid surface; and automatically identify the current calcium carbide liquid level through the obtained characteristic information of the current calcium carbide liquid surface.

[0059] The control device 30 is also used to: determine whether the calcium carbide pot container 10 is full by identifying the current calcium carbide liquid level; or determine whether the calcium carbide pot container 10 is full by obtaining an image of the current calcium carbide liquid level. When the calcium carbide pot container 10 is full, the control device 30 can send a full pot signal; after the automatic pot pulling system obtains the pot full signal, it will automatically move to the next pot.

[0060] The system for identifying the liquid level of calcium carbide provided by the embodiment of the present invention can accurately identify the liquid level of the calcium carbide pot container 10, avoid the loss of calcium carbide caused by overflow of calcium carbide liquid, and improve the economic benefits of calcium carbide production; the embodiment of the present invention can also automatically determine whether the calcium carbide pot container 10 is full, which solves the key technology for the factory to realize the automation of calcium carbide furnace unloading and pot pulling, so that the factory can easily realize the automation of pot pulling; further, the embodiment of the present invention can enable workers to escape from dangerous environments such as high temperature, glare, dust, etc., and avoid risks such as burns.

[0061] Figure 7 This is a schematic diagram of the mechanism of the pot pulling system for the electric stone pot provided by the embodiment of the present invention, please refer to Figure 7 The pulling pot system for calcium carbide pot may include an ore-fired furnace 40, a plurality of calcium carbide pot containers 10, a pulling pot operation device 50, the above-mentioned control device 30 and a thermal imaging device 20. The pulling pot operation device 50 may include a plurality of carriages 52 connected in series for placing calcium carbide pot containers and a power device 51 arranged at both ends of the plurality of carriages 52, each carriage 52 placing a calcium carbide pot container 10, the ore-fired furnace 40 is filled with calcium carbide liquid, and calcium carbide liquid flows into the calcium carbide pot container 10 located at a preset position of the furnace eye through the furnace eye (not shown in the figure). The thermal imaging device 20 is installed near the calcium carbide pot container 10 at the preset position of the furnace eye to obtain an image of the current calcium carbide liquid level of the calcium carbide pot container 10, and the current calcium carbide liquid level of the calcium carbide pot container 10 is identified through the control device 30.

[0062] The control device 30 preferably in the embodiment of the present invention can also be used for: when the identified current calcium carbide liquid level shows that the calcium carbide pot container 10 is full, controlling the power device 51 to move the next calcium carbide pot container 10 to the preset position of the furnace eye; and after the next calcium carbide pot container 10 moves to the preset position of the furnace eye, controlling the furnace eye to open so that calcium carbide liquid flows into the next calcium carbide pot container 10.

[0063] Please refer to Figure 7 and Figure 8For example, the preferred power device 51 of the embodiment of the present invention is a winch, and the winch is connected to the pot-pulling trolley through a wire rope. When the control device 30 receives the pot-pulling start instruction, it controls the power device 51 (for example, the winch) to run, and pulls the empty pot of the first calcium carbide pot container 10 to the preset position of the furnace eye (for example, directly below the furnace eye); at this time, it controls the furnace eye to open, and controls the calcium carbide liquid in the ore-heating furnace 40 to flow out and flow into the current calcium carbide pot container 10; controls the thermal imaging device 20 (for example, an infrared thermal imager) to collect the image of the current calcium carbide liquid level; identifies the current calcium carbide liquid level through the method for calcium carbide liquid level identification provided by the above-mentioned embodiment of the present invention; when the calcium carbide liquid level of the calcium carbide pot container 10 reaches the pot-pulling requirement (for example, a full pot), the control device 30 controls the winch to move the empty pot of the next calcium carbide pot container 10 to directly below the furnace mouth. Repeat the above process until the furnace is taken out and the furnace eye is sealed. After the furnace eye is sealed, the winch is controlled to move the pot-pulling trolley to the designated position in the calcium carbide cooling workshop to realize the automation of calcium carbide furnace taking-out and pot-pulling.

[0064] Accordingly, the calcium carbide pot pulling system provided in the embodiment of the present invention is based on the automatic identification of the calcium carbide liquid level, and can automatically determine whether the calcium carbide pot container is full, thereby realizing the automation of calcium carbide out of the furnace and pot pulling, and further promoting the factory to realize the automation of pot pulling.

[0065] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0066] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0067] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0068] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0069] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0070] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0071] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0072] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0073] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A method for identifying calcium carbide liquid level, characterized in that: The method for identifying the calcium carbide level comprises: Using a thermal imaging device installed near the calcium carbide pot container, an image of the current calcium carbide liquid level is obtained; Performing image recognition on the acquired image of the current calcium carbide liquid level to obtain characteristic information of the current calcium carbide liquid level; and The current calcium carbide liquid level is identified by the obtained characteristic information of the current calcium carbide liquid level.

2. The method for identifying calcium carbide liquid level according to claim 1, characterized in that: After acquiring the image of the current calcium carbide liquid level, the method for calcium carbide liquid level identification further includes: Using the RGB values ​​of the liquid surface, smoke and background, distinguishing the liquid surface image, smoke image and background image in the current calcium carbide liquid surface image; and A liquid surface image is extracted from the image of the current calcium carbide liquid surface.

3. The method for identifying calcium carbide liquid level according to claim 1, characterized in that: After acquiring the image of the current calcium carbide liquid level, the method for calcium carbide liquid level identification further includes: Obtaining a full pot image of the calcium carbide pot container from a preset calcium carbide liquid surface image database; and By using a preset image comparison method, by comparing the image of the current calcium carbide liquid level with the full pot image, it is determined whether the calcium carbide pot container is full.

4. The method for identifying calcium carbide liquid level according to claim 1, characterized in that: The characteristic information includes the area of ​​the current calcium carbide liquid surface. The image recognition is performed on the acquired image of the current calcium carbide liquid surface to obtain the characteristic information of the current calcium carbide liquid surface, including: Annotating pixels of the acquired image of the current calcium carbide liquid level; and The pixel-annotated image is input into a preset image recognition model to obtain the current area of ​​the calcium carbide liquid surface.

5. The method for identifying calcium carbide liquid level according to claim 4, characterized in that: Before identifying the current calcium carbide liquid level by using the obtained characteristic information of the current calcium carbide liquid level, the method for identifying the calcium carbide liquid level further includes: Calibrate multiple liquid point locations of the electric stone pot container, each liquid point location corresponds to a liquid level height; For each of the liquid position points, obtaining a corresponding liquid surface measurement area; and Based on each liquid point and the corresponding liquid level measurement area, the correspondence between the preset liquid level height and the liquid surface area of ​​the calcium carbide pot container is determined, so as to identify the current calcium carbide liquid level based on the correspondence between the preset liquid level height and the liquid surface area and through the obtained current calcium carbide liquid surface area.

6. The method for identifying calcium carbide liquid level according to claim 4, characterized in that: The method for identifying calcium carbide level also includes: Calibrate multiple liquid point locations of the electric stone pot container, each liquid point location corresponds to a liquid level height; For any two liquid point locations, obtain the corresponding volume of calcium carbide liquid flowing into the calcium carbide pot container; and Based on the change in liquid level height and the corresponding change in the volume of calcium carbide liquid, the corresponding relationship between the change in liquid level height and the change in the volume of calcium carbide liquid of the calcium carbide pot container is determined, and based on the corresponding relationship between the change in liquid level height and the change in the volume of calcium carbide liquid, and by obtaining the inflow rate, the time when the calcium carbide pot container is filled is determined.

7. A control device for calcium carbide liquid level identification, characterized in that: The control device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the method for identifying calcium carbide liquid level according to any one of claims 1-6.

8. A machine-readable storage medium, characterized in that: The machine-readable storage medium stores instructions, which enable the machine to execute the method for identifying calcium carbide liquid level according to any one of claims 1-6.

9. A pot pulling system for an electric stone pot, characterized in that: The pot pulling system for electric stone pots comprises an ore-fired furnace, a plurality of electric stone pot containers, a pot pulling operation device, the control device according to claim 7, and a thermal imaging device. The pot pulling operation device comprises a plurality of carriages connected in series for placing calcium stone pot containers and power devices arranged at both ends of the plurality of carriages, each carriage being provided with a calcium stone pot container. The ore-fired furnace is filled with calcium carbide liquid, which flows into the calcium carbide pot container located at a preset position of the furnace eye through the furnace eye. The thermal imaging device is installed near the calcium carbide pot container at a preset position of the furnace eye to obtain an image of the current calcium carbide liquid level of the calcium carbide pot container, and the current calcium carbide liquid level of the calcium carbide pot container is identified through the control device.

10. The pot pulling system for electric stone pot according to claim 9, characterized in that: The control device is also used for: When the identified current calcium carbide liquid level shows that the calcium carbide pot container is full, controlling the power device to move the next calcium carbide pot container to a preset position of the furnace eye; and After the next calcium carbide pot container moves to the preset position of the furnace eye, the furnace eye is controlled to open so that calcium carbide liquid flows into the next calcium carbide pot container.

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