Mutual inductor nameplate cleaning device and cleaning method

Abstract

The invention provides a cleaning device and a cleaning method for a nameplate of a mutual inductor, and belongs to the technical field of mutual inductor production detection equipment. The mutual inductor nameplate cleaning device comprises a rack, an adjusting assembly, an image acquisition module and a control module. The rack is provided with a conveying belt; and the cleaning assembly is in sliding connection with the rack. The adjusting assembly is arranged on the rack; the adjusting assembly is used for adjusting the positions of the mutual inductor and the cleaning assembly. The image collection module is fixedly connected to the cleaning assembly and used for collecting and outputting image information of the mutual inductor. The control module is in communication connection with the image acquisition module, the cleaning assembly and the adjusting assembly; the control module is used for receiving the image information and controlling the adjusting assembly and the cleaning assembly to work according to the image information.

Description

Technical Field

[0001] This invention belongs to the technical field of instrument transformer production and testing equipment, and more specifically, it relates to an instrument transformer nameplate cleaning device and cleaning method. Background Technology

[0002] Instrument transformers, as indispensable and crucial equipment in power systems, undertake the key tasks of voltage and current transformation, measurement, and protection. They convert high voltage and large current into low voltage and small current signals that can be measured and controlled, providing a strong guarantee for the safe and stable operation of power systems. To ensure the performance and accuracy of instrument transformers, rigorous testing at the factory is an essential step. Through testing, it can be ensured that the various performance indicators of the instrument transformers meet the design requirements and relevant standards, guaranteeing that they can accurately transform voltage and current in actual operation, and providing reliable support for the monitoring, protection, and metering of power systems.

[0003] During the factory inspection of instrument transformer nameplates, the problem of impurities on the outer surface of the nameplate is often encountered. These impurities can obscure the text, numbers, and markings on the nameplate, making it difficult for inspectors to clearly and accurately read key information such as the instrument transformer model, specifications, accuracy class, and production date. This not only leads to low inspection efficiency and increases inspection time and cost, but may also result in misjudgments of the instrument transformer's quality and performance due to information reading errors, allowing unqualified products to enter the market and posing potential risks to the operation of the power system. Therefore, there is a problem of not being able to easily clean the impurities on the nameplate. Summary of the Invention

[0004] The purpose of this invention is to provide a current transformer nameplate cleaning device, which aims to solve the problem that contamination on the current transformer nameplate prevents inspectors from clearly and accurately reading key information.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a device and method for cleaning the nameplate of a current transformer. In a first aspect, the present invention provides a current transformer nameplate cleaning device, comprising: A frame is equipped with a conveyor belt; a cleaning assembly is slidably connected to the frame. An adjustment assembly is mounted on the frame; the adjustment assembly is used to adjust the positions of the current transformer and the cleaning assembly. An image acquisition module, fixedly connected to the cleaning assembly, is used to acquire and output image information of the current transformer; and The control module is communicatively connected to the image acquisition module, the cleaning component, and the adjustment component; the control module is used to receive the image information and control the adjustment component and the cleaning component to work according to the image information.

[0006] In one possible implementation, the cleaning component includes: The housing is fixedly connected to the frame; The movable frame is slidably connected to the housing; and A cleaning mechanism is mounted on the movable frame; the cleaning mechanism is used to clean the nameplate of the current transformer as the current transformer passes by.

[0007] In one possible implementation, the cleaning mechanism includes: The third telescopic component is fixedly connected to the movable frame; the third telescopic component is vertically arranged. The atomizing nozzle module is fixedly connected to the bottom of the third telescopic component; A cleaning component is fixedly connected to the bottom of the third telescopic component; the cleaning component is located behind the atomizing nozzle. A liquid storage tank is fixedly connected to the housing; the liquid storage tank contains cleaning fluid; the atomizing nozzle module is connected to the liquid storage tank; and A water pump is installed in the liquid storage tank; the water pump is used to pump the cleaning liquid in the liquid storage tank to the atomizing nozzle module and spray it out.

[0008] In one possible implementation, the liquid storage tank is provided with a clean water area and a cleaning agent area; the atomizing nozzle module includes a clean water nozzle and a cleaning agent nozzle; the clean water nozzle is connected to the clean area, and the cleaning agent nozzle is connected to the cleaning agent area.

[0009] In one possible implementation, the regulating component includes: A first adjusting mechanism is mounted on the frame; the first adjusting mechanism is used to adjust the position of the current transformer on the conveyor belt; and A second adjustment mechanism is disposed on the frame and connected to the cleaning component; the second adjustment mechanism is used to adjust the position of the cleaning component.

[0010] In one possible implementation, the first adjusting mechanism includes: The first telescopic component is fixedly connected to the frame; and The adjusting plate is fixedly connected to one end of the first telescopic member.

[0011] In one possible implementation, the second adjustment mechanism includes a second telescopic member; one end of the second telescopic member is fixedly connected to the frame, and the other end is fixedly connected to the movable frame.

[0012] The beneficial effects of the instrument transformer nameplate cleaning device provided by the present invention are as follows: Compared with the prior art, the instrument transformer nameplate cleaning device of the present invention, by setting a conveyor belt and a cleaning component on the frame and slidingly connecting the cleaning component to the frame, can use the cleaning component to clean the impurities on the outer surface of the instrument transformer nameplate, which solves the problem of impurities obscuring the nameplate information and causing reading difficulties, and ensures that the testing personnel or subsequent image acquisition can clearly obtain the key information such as the model, specifications, accuracy class, and production date on the nameplate.

[0013] The adjustment components allow for the repositioning of the current transformer and the cleaning component. This ensures the cleaning component is precisely aligned with the nameplate impurity area for improved cleaning efficiency, while also placing the current transformer in a more suitable position for image acquisition, facilitating subsequent testing. The image acquisition module, fixed to the cleaning component, can promptly acquire and output images of the current transformer after cleaning, preventing image quality issues caused by residual impurities or positional shifts after cleaning, thus guaranteeing the accuracy of the image information.

[0014] The control module maintains communication connections with the image acquisition module, cleaning component, and adjustment component. It receives image information output from the image acquisition module and automatically controls the operation of the adjustment and cleaning components based on this information, eliminating the need for frequent manual intervention. This not only reduces the workload of manual operation but also increases the automation level of the testing process, thereby improving overall testing efficiency, reducing testing errors caused by human error, preventing unqualified products from entering the market, and providing a more reliable guarantee for the safe and stable operation of the power system.

[0015] Secondly, the present invention provides a method for cleaning a transformer nameplate, applied to the transformer nameplate cleaning device as described in the first aspect, comprising the following steps: Obtain an empty image of the conveyor belt and mark the standard workstation on the empty image to obtain reference image information; Acquire conveying image information from the conveyor belt current transformer; The transmitted image information is compared with the reference image information to calculate the deviation distance; The first adjustment mechanism is controlled according to the deviation distance to move the current transformer to the standard position; Obtain the nameplate image information of the current transformer; Identify the type of contamination on the nameplate based on the nameplate image information; Control the spray nozzles to spray clean water or the spray nozzles to spray cleaning agent, depending on the type of contamination.

[0016] In one possible implementation, obtaining the nameplate image information of the current transformer includes: The nameplate area of ​​the current transformer is located and photographed to obtain the nameplate image information; Enhance the image contrast of the nameplate image information and sharpen the nameplate image information to highlight the text and the boundaries of the contaminated areas on the nameplate image information.

[0017] In one possible implementation, identifying the type of contamination on the nameplate based on the nameplate image information includes: In the nameplate image information, the contaminated area is segmented, and the feature parameters of the contaminated area are extracted to obtain the input data for the classification model; The input data is fed into the classification model to obtain the pollution type and confidence level; If the confidence level is greater than 90%, the pollution type is directly determined; otherwise, the pollution type is determined to be dust.

[0018] The beneficial effects of the instrument transformer nameplate cleaning method provided by the present invention are as follows: Compared with the prior art, the instrument transformer nameplate cleaning method of the present invention acquires the nameplate image information of the instrument transformer before cleaning and identifies the type of contamination based on the information, which can achieve accurate judgment of the contamination situation and avoid the situation of blindly using cleaning liquid in traditional cleaning. It can not only ensure the cleaning effect, but also reduce unnecessary cleaning agent consumption and reduce cleaning costs.

[0019] Depending on the type of contamination, the appropriate nozzle is used to spray either clean water or cleaning agent. Different cleaning methods are adopted for different types of contamination. For light dust contamination, clean water is sufficient for effective cleaning, while for stubborn stains, cleaning agent is used to enhance the cleaning effect. This not only improves the accuracy and efficiency of cleaning, but also avoids corrosion or damage to the nameplate surface caused by the overuse of cleaning agents, further ensuring the integrity and readability of the nameplate information. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the instrument transformer nameplate cleaning device provided in an embodiment of the present invention; Figure 2 A schematic diagram of the structure of the cleaning component provided in an embodiment of the present invention; Figure 3 Another schematic diagram of the structure of the cleaning component provided in an embodiment of the present invention; Figure 4 A schematic diagram illustrating the main steps of the instrument transformer nameplate cleaning method provided in this embodiment of the invention; Figure 5 This is a schematic diagram illustrating the main steps of obtaining the nameplate image information of a current transformer according to an embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the main steps of identifying the type of contamination on a nameplate based on the nameplate image information, as provided in an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Frame; 2. Current transformer body; 3. Adjustment assembly; 301. Protective housing; 302. First telescopic component; 303. Adjustment plate; 304. Second telescopic component; 305. Conveyor belt; 4. Cleaning mechanism; 401. Water pump; 402. Connecting pipe; 403. Corrugated pipe; 404. Cleaning plate; 405. Housing; 406. Guide rod; 407. Moving frame; 408. Cleaning brush; 409. Sponge block; 410. High-definition camera; 411. Supplemental light; 412. Third telescopic component; 413. Atomizing nozzle module; 414. Liquid storage tank. Detailed Implementation

[0023] To make the technical problems, solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0025] It should be further noted that the accompanying drawings and embodiments of the present invention mainly describe the concept of the present invention. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of the present invention, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0026] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0027] In the description of this invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0028] The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself; the term "length"... "Width", "Top", "Bottom", "Front", "Back", "Left", "Right", "Vertical" The terms "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of facilitating the description of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0029] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," and "above" are used here to describe the spatial positional relationship between a device or feature and other devices or features, as shown in the figure. It should be understood that spatial relative terms are intended to... The invention includes different orientations of the device in use or operation, in addition to those described in the figures. For example, if a device in the figures is inverted, a device described as "above" or "on top of" other devices or structures will be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below". The device may also be positioned in other different ways, and the spatial relative descriptions used herein are interpreted accordingly. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality of" means two or more, and "a number" means one or more, unless otherwise explicitly specified.

[0030] Reference Figures 1 to 6 The present invention will now describe the instrument transformer nameplate cleaning device and cleaning method provided.

[0031] In a first aspect, the present invention provides a current transformer nameplate cleaning device, comprising a frame 1, an adjustment component 3, an image acquisition module, and a control module. The frame 1 is equipped with a conveyor belt 305; a cleaning component is slidably connected to the frame 1. An adjustment component 3 is mounted on the frame 1; the adjustment component 3 is used to adjust the positions of the current transformer and the cleaning component. An image acquisition module is fixedly connected to the cleaning component and is used to acquire and output image information from the current transformer. A control module is communicatively connected to the image acquisition module, the cleaning component, and the adjustment component 3; the control module receives image information and controls the operation of the adjustment component 3 and the cleaning component based on the image information.

[0032] The conveyor belt 305 installed on the frame 1 can stably transport the current transformers, providing a continuous material transfer foundation for subsequent cleaning and testing. The cleaning component is slidably connected to the frame 1, allowing it to flexibly approach the current transformer nameplate, facilitating the cleaning of impurities on the nameplate at different locations and preventing long-term adhesion of impurities from affecting information reading.

[0033] Adjustment component 3 is mounted on frame 1 and can adjust the positions of the current transformer and the cleaning component separately. By adjusting the position of the current transformer, the nameplate can always face the cleaning component and the image acquisition module, ensuring that the cleaning and acquisition actions accurately cover key areas; by adjusting the position of the cleaning component, the cleaning mechanism 4 can be more closely fitted to the contaminated areas according to the size of the nameplate and the distribution of contamination, thus improving the targeting of cleaning.

[0034] The image acquisition module is fixed to the cleaning assembly, allowing for immediate image acquisition of the current transformer after cleaning. This attached design reduces positional deviations caused by current transformer movement after cleaning, ensuring that the acquired images accurately reflect the nameplate's condition after cleaning and providing clear and accurate image data for subsequent information identification.

[0035] The control module maintains communication connections with the image acquisition module, cleaning component, and adjustment component 3, enabling it to receive image information output from the image acquisition module in real time. Based on this information, the control module can automatically trigger the adjustment component 3 to adjust its position or control the cleaning component to initiate cleaning actions, eliminating the need for manual operation. This automated control process not only reduces the intensity of manual operation but also minimizes issues such as incomplete cleaning or acquisition deviations caused by human error, effectively improving overall cleaning and inspection efficiency, ensuring the accuracy of subsequent readings of the instrument transformer nameplate information, and avoiding misjudgments of product quality due to misreading of information.

[0036] In one possible implementation, the cleaning components include: housing 405, moving frame 407, and cleaning mechanism 4.

[0037] The housing 405 is fixedly connected to the frame 1. The movable frame 407 is slidably connected to the housing 405. The cleaning mechanism 4 is mounted on the movable frame 407; the cleaning mechanism 4 is used to clean the nameplate of the current transformer as it passes by.

[0038] In a preferred embodiment, the image acquisition module can use a high-definition camera 410 as the core acquisition component, and is assembled with a ring-shaped supplementary lighting component. The whole is fixed to the side of the moving frame 407 of the cleaning component by a bracket to ensure that the lens can be stably aligned with the nameplate area of ​​the current transformer on the conveyor belt 305.

[0039] The HD camera 410 is available in a 20-megapixel resolution model. This resolution can clearly capture text and markings as small as 2mm on nameplates, avoiding information loss due to insufficient pixels. The ring-shaped fill light assembly uses adjustable brightness LED beads, which can adjust the brightness within the range of 100-1000 lux according to the actual ambient light intensity. When the light around the conveyor belt 305 is dim, the fill light assembly can automatically increase the brightness to eliminate shadow areas on the nameplate surface; when the light is too strong, it can reduce the brightness to avoid reflections affecting image clarity.

[0040] In addition, the image acquisition module also integrates an image preprocessing unit, which can perform preliminary noise reduction on the acquired raw images to remove noise caused by environmental interference, providing higher quality basic data for image analysis of the subsequent control module. The acquisition frequency of this module can be set to 3 frames per second, which can ensure that the complete nameplate image is captured when the current transformer passes by, without data redundancy due to excessive acquisition frequency.

[0041] The control module can use an industrial-grade PLC controller as the core control unit. The PLC controller is selected to be a model with a multi-channel communication interface, which can simultaneously establish a stable communication connection with the image acquisition module, cleaning component, and adjustment component 3. The communication protocol adopts the Modbus-RTU protocol to ensure the real-time performance and accuracy of data transmission, and the delay time can be controlled within 50ms.

[0042] In one possible implementation, the cleaning mechanism 4 includes a third telescopic member 412, an atomizing nozzle module, a cleaning component, a liquid storage tank 414, and a water pump 401.

[0043] The third telescopic component 412 is fixedly connected to the movable frame 407; the third telescopic component 412 is vertically arranged. The atomizing nozzle module 413 is fixedly connected to the bottom of the third telescopic component 412. The cleaning component is fixedly connected to the bottom of the third telescopic component 412; the cleaning component is located behind the atomizing nozzle. The liquid storage tank 414 is fixedly connected to the housing 405; the liquid storage tank 414 stores cleaning liquid; the atomizing nozzle module 413 is connected to the liquid storage tank 414. The water pump 401 is installed in the liquid storage tank 414; the water pump 401 is used to pump the cleaning liquid in the liquid storage tank 414 to the atomizing nozzle module 413 and spray it out.

[0044] The third telescopic member 412 has a telescopic section that can extend or retract. The telescopic section is located at the bottom of the third telescopic member 412, and the third telescopic member 412 can drive the telescopic section to extend downwards or retract upwards. A cleaning plate 404 is provided at the bottom of the telescopic section. The cleaning component and the atomizing nozzle module 413 are both mounted on the cleaning plate 404, with the atomizing nozzle module 413 positioned in front of the cleaning component. The atomizing nozzle module 413 is connected to the liquid storage tank 414 via a corrugated pipe 403 and a connecting pipe 402. A water pump 401 is connected to the connecting pipe 402. The cleaning component includes a cleaning brush 408 and a sponge block 409 fixedly connected to the cleaning plate 404.

[0045] When the instrument transformer nameplate needs cleaning, the third telescopic member 412 drives the telescopic section to descend, allowing the cleaning component to wipe the nameplate. The water pump 401 supplies cleaning fluid to the atomizing nozzle module 413 via the connecting pipe 402 and the bellows 403. The atomizing nozzle module 413 sprays a mist of cleaning fluid onto the instrument transformer nameplate. As the conveyor belt 305 drives the instrument transformer to move, the cleaning component wipes the nameplate clean, along with any impurities. After cleaning, the third telescopic member 412 retracts the telescopic section, thereby raising the height of the atomizing nozzle module 413 and the cleaning component. During the raising and lowering process of the third telescopic member 412 driving the atomizing nozzle module 413 and the cleaning component, the bellows 403 adaptably bends, extends, and shortens accordingly.

[0046] In one possible implementation, the liquid storage tank 414 is provided with a clean water area and a cleaning agent area; the atomizing nozzle module 413 includes a clean water nozzle and a cleaning agent nozzle; the clean water nozzle is connected to the cleaning area, and the cleaning agent nozzle is connected to the cleaning agent area.

[0047] In one possible implementation, the adjusting assembly 3 includes a first adjusting mechanism and a second adjusting mechanism. The first adjusting mechanism is mounted on the frame 1 and is used to adjust the position of the current transformer on the conveyor belt 305. The second adjusting mechanism is mounted on the frame 1 and connected to the cleaning assembly; the second adjusting mechanism is used to adjust the position of the cleaning assembly.

[0048] In one possible implementation, the first adjustment mechanism includes a first telescopic member 302 and an adjustment plate 303. The first telescopic member 302 is fixedly connected to the frame 1. The adjustment plate 303 is fixedly connected to one end of the first telescopic member 302.

[0049] In one possible implementation, the second adjustment mechanism includes a second telescopic member 304; one end of the second telescopic member 304 is fixedly connected to the frame 1, and the other end is fixedly connected to the movable frame 407.

[0050] In a preferred embodiment, a guide is provided on the housing 405, and the movable frame 407 slides in cooperation with the guide. When adjusting the position of the cleaning component, the second telescopic member 304 drives the movable frame 407 to slide along the guide by adjusting its own length. It should be noted that the first telescopic member 302, the second telescopic member 304, and the third telescopic member 412 can be one of a cylinder, a hydraulic telescopic member, or an electric telescopic member.

[0051] The beneficial effects of the instrument transformer nameplate cleaning device provided by the present invention are as follows: Compared with the prior art, the instrument transformer nameplate cleaning device of the present invention, by setting a conveyor belt 305 and a cleaning component on the frame 1, and the cleaning component being slidably connected to the frame 1, can use the cleaning component to clean the impurities on the outer surface of the instrument transformer nameplate, thus solving the problem of impurities obscuring the nameplate information and causing reading difficulties, and ensuring that the testing personnel or subsequent image acquisition can clearly obtain the key information such as the model, specifications, accuracy level, and production date on the nameplate.

[0052] The adjustment component 3 allows for the adjustment of the positions of the current transformer and the cleaning component. This ensures that the cleaning component is precisely aligned with the nameplate impurity area to improve cleaning efficiency, and also positions the current transformer in a more suitable location for image acquisition, facilitating subsequent testing. The image acquisition module, fixed to the cleaning component, can promptly acquire and output image information from the current transformer after cleaning, avoiding the impact of residual impurities or positional shifts on image quality and ensuring the accuracy of the image information.

[0053] The control module maintains communication connections with the image acquisition module, cleaning component, and adjustment component 3. It can receive image information output by the image acquisition module and automatically control the operation of adjustment component 3 and cleaning component based on this information, eliminating the need for frequent manual intervention. This not only reduces the workload of manual operation but also improves the automation level of the detection process, thereby enhancing the overall detection efficiency, reducing detection errors caused by human error, preventing unqualified products from entering the market, and providing a more reliable guarantee for the safe and stable operation of the power system.

[0054] Secondly, the present invention provides a method for cleaning the nameplate of a current transformer, applied to the current transformer nameplate cleaning device as described in the first aspect, comprising the following steps: S1. Obtain an image of the conveyor belt under no-load conditions, mark the standard workstations on the image under no-load conditions, and obtain reference image information.

[0055] S2. Obtain the conveying image information of the conveyor belt's current transformer.

[0056] S3. Compare the transmitted image information with the reference image information and calculate the deviation distance.

[0057] S4. Control the first adjustment mechanism to work according to the deviation distance, so as to move the current transformer to the standard position.

[0058] S5. Obtain the nameplate image information of the mutual inductor.

[0059] In one possible implementation, S5. Obtain the nameplate image information of the current transformer, including: S51. Locate the nameplate area of ​​the current transformer and take a picture of the nameplate area to obtain the nameplate image information.

[0060] S52. Enhance the image contrast of the nameplate image information and sharpen the nameplate image information to highlight the text on the nameplate image information and the boundaries of the contaminated areas.

[0061] Histogram equalization is performed on the nameplate image information using the following formula to improve image contrast:

[0062] in, The gray levels after histogram equalization are Pixel values; The gray levels before histogram equalization are: Pixel values; For histogram equalization function; This represents the total number of pixels in the image. grayscale level is The number of pixels.

[0063] S6. Identify the type of contamination on the nameplate based on the nameplate image information.

[0064] In one possible implementation, S6. Based on the nameplate image information, identify the type of contamination on the nameplate, including: S61. In the nameplate image information, segment the contaminated area and extract the feature parameters of the contaminated area to obtain the input data for the classification model.

[0065] The GrabCut algorithm is used to distinguish between contaminated areas and the background color / text of the nameplate, and the contaminated areas are segmented. Then, color features, texture features, and morphological features are extracted from the contaminated areas. Color features include hue and saturation in the HSV color space. Texture features include contrast and correlation of the gray-level co-occurrence matrix. Morphological features include the area and roundness of the contaminated areas.

[0066] S62. Input the input data into the classification model to obtain the pollution type and confidence level.

[0067] The classification model is a CNN classification model trained using a database of contamination samples. The database includes two common types of contamination: dust and oil, with at least 1000 images for each type.

[0068] S63. If the confidence level is greater than 90%, the pollution type is directly determined; otherwise, the pollution type is determined to be dust.

[0069] S7. Control the spray nozzles to spray clean water or the spray nozzles to spray cleaning agent, depending on the type of contamination.

[0070] When the pollution type is oil stain, the cleaning agent nozzle sprays cleaning agent; when the pollution type is dust stain, the water nozzle sprays water.

[0071] Each nozzle in the atomizing nozzle module is equipped with an electrically controlled switch valve. When controlling the spraying of clean water or detergent, the water pump supplies a metered pressure of clean water or detergent to all nozzles through connecting pipes and bellows. When it is necessary to spray clean water or detergent, the corresponding electrically controlled switch valve is opened.

[0072] The beneficial effects of the instrument transformer nameplate cleaning method provided by the present invention are as follows: Compared with the prior art, the instrument transformer nameplate cleaning method of the present invention acquires the nameplate image information of the instrument transformer before cleaning and identifies the type of contamination based on the information, which can achieve accurate judgment of the contamination situation and avoid the situation of blindly using cleaning liquid in traditional cleaning. It can not only ensure the cleaning effect, but also reduce unnecessary cleaning agent consumption and reduce cleaning costs.

[0073] Depending on the type of contamination, the appropriate nozzle is used to spray either clean water or cleaning agent. Different cleaning methods are adopted for different types of contamination. For light dust contamination, clean water is sufficient for effective cleaning, while for stubborn stains, cleaning agent is used to enhance the cleaning effect. This not only improves the accuracy and efficiency of cleaning, but also avoids corrosion or damage to the nameplate surface caused by the overuse of cleaning agents, further ensuring the integrity and readability of the nameplate information.

[0074] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A current transformer nameplate cleaning device, characterized in that, include: The frame is equipped with a conveyor belt; The rack is slidably connected to a cleaning assembly; Adjustment components are mounted on the frame; The adjustment component is used to adjust the position of the current transformer and the cleaning component; An image acquisition module is fixedly connected to the cleaning component and is used to acquire and output image information of the current transformer; and The control module is communicatively connected to the image acquisition module, the cleaning component, and the adjustment component; the control module is used to receive the image information and control the adjustment component and the cleaning component to work according to the image information.

2. The instrument transformer nameplate cleaning device as described in claim 1, characterized in that, The cleaning components include: The housing is fixedly connected to the frame; The movable frame is slidably connected to the housing; and A cleaning mechanism is mounted on the movable frame; the cleaning mechanism is used to clean the nameplate of the current transformer as the current transformer passes by.

3. The instrument transformer nameplate cleaning device as described in claim 2, characterized in that, The cleaning facility includes: The third telescopic component is fixedly connected to the movable frame; the third telescopic component is vertically arranged. The atomizing nozzle module is fixedly connected to the bottom of the third telescopic component; A cleaning component is fixedly connected to the bottom of the third telescopic component; the cleaning component is located behind the atomizing nozzle. A liquid storage tank is fixedly connected to the housing; the liquid storage tank contains cleaning fluid; the atomizing nozzle module is connected to the liquid storage tank; and A water pump is installed in the liquid storage tank; the water pump is used to pump the cleaning liquid in the liquid storage tank to the atomizing nozzle module and spray it out.

4. The instrument transformer nameplate cleaning device as described in claim 3, characterized in that, The liquid storage tank is provided with a clean water area and a cleaning agent area; the atomizing nozzle module includes a clean water nozzle and a cleaning agent nozzle; the clean water nozzle is connected to the cleaning area, and the cleaning agent nozzle is connected to the cleaning agent area.

5. The instrument transformer nameplate cleaning device as described in claim 2, characterized in that, The adjustment component includes: A first adjusting mechanism is mounted on the frame; the first adjusting mechanism is used to adjust the position of the current transformer on the conveyor belt; and A second adjustment mechanism is disposed on the frame and connected to the cleaning component; the second adjustment mechanism is used to adjust the position of the cleaning component.

6. The instrument transformer nameplate cleaning device as described in claim 5, characterized in that, The first adjustment mechanism includes: The first telescopic component is fixedly connected to the frame; and The adjusting plate is fixedly connected to one end of the first telescopic member.

7. The instrument transformer nameplate cleaning device as described in claim 5, characterized in that, The second adjustment mechanism includes a second telescopic member; one end of the second telescopic member is fixedly connected to the frame, and the other end is fixedly connected to the movable frame.

8. A method for cleaning a current transformer nameplate, applied to the current transformer nameplate cleaning device as described in any one of claims 1-7, characterized in that, Includes the following steps: Obtain an empty image of the conveyor belt and mark the standard workstation on the empty image to obtain reference image information; Acquire conveying image information from the conveyor belt current transformer; The transmitted image information is compared with the reference image information to calculate the deviation distance; The first adjustment mechanism is controlled according to the deviation distance to move the current transformer to the standard position; Obtain the nameplate image information of the current transformer; Identify the type of contamination on the nameplate based on the nameplate image information; Control the spray nozzles to spray clean water or the spray nozzles to spray cleaning agent, depending on the type of contamination.

9. The method for cleaning the nameplate of a current transformer as described in claim 8, characterized in that, Obtain the nameplate image information of the current transformer, including: The nameplate area of ​​the current transformer is located and photographed to obtain the nameplate image information; Enhance the image contrast of the nameplate image information and sharpen the nameplate image information to highlight the text and the boundaries of the contaminated areas on the nameplate image information.

10. The method for cleaning the nameplate of a current transformer as described in claim 9, characterized in that, Based on the nameplate image information, identify the type of contamination on the nameplate, including: In the nameplate image information, the contaminated area is segmented, and the feature parameters of the contaminated area are extracted to obtain the input data for the classification model; The input data is fed into the classification model to obtain the pollution type and confidence level; If the confidence level is greater than 90%, the pollution type is directly determined; otherwise, the pollution type is determined to be dust.

Images