Electrical equipment fault optical detection device and method

Abstract

The invention relates to a power equipment fault optical detection device and method, the device comprises a discharge detection matrix, a fault locator and a processor, the discharge detection matrix and the fault locator are connected with the processor, and power equipment is arranged in a detection area of the discharge detection matrix and the fault locator. The discharge detection matrix is used for detecting a discharge signal of the power equipment and transmitting the discharge signal to the processor, the fault locator is used for detecting an operation image of the power equipment and transmitting the operation image to the processor, and the processor is used for determining a discharge direction of the power equipment based on the discharge signal and determining a fault position of the power equipment based on the discharge direction and the operation image. The discharge direction of the power equipment is roughly determined through the discharge detection matrix, the discharge position is determined by combining the fault locator, and finally the fault position of the power equipment is determined. An ultraviolet imager does not need to be used and arranged, the equipment cost and the popularization and application difficulty are reduced, the method can be widely applied to multi-area power equipment detection requirements, and the detection convenience is improved.

Description

Technical Field

[0001] This application relates to the technical field of power grid equipment, and particularly to an optical detection device and method for power equipment failures. Background Art

[0002] In a power system, power equipment such as substation equipment and overhead transmission lines may experience partial discharge phenomena due to factors such as oxidation corrosion, long-term operation, and poor installation quality as the operation time increases. Each partial discharge will affect the insulating medium of the power equipment, resulting in a decrease in insulation strength. Among them, minor partial discharges have a relatively small impact on the insulation of power equipment, and the decrease in insulation strength is relatively slow; while strong partial discharges will cause the insulation strength to drop rapidly.

[0003] Therefore, partial discharge is one of the important factors causing insulation damage to high-voltage power equipment. Currently, ultraviolet imaging is usually used to detect insulator discharge. However, ultraviolet imagers usually use a planar array ICCD (Intensified CCD / ICCD, intensified charge-coupled device) as the core imaging element, which requires high process precision, has a large number of ultraviolet pixels (generally more than 300,000 pixels), is expensive, and has a complex design. When facing the detection requirements of power equipment in large areas and multiple regions in China, it is difficult to popularize and apply, and the detection convenience is insufficient. Summary of the Invention

[0004] Based on this, it is necessary to provide an optical detection device, method, computer device, computer-readable storage medium, and computer program product for power equipment failures that can improve convenience in response to the above technical problems.

[0005] In a first aspect, this application provides an optical detection device for power equipment failures. The device includes a discharge detection matrix, a fault locator, and a processor. Both the discharge detection matrix and the fault locator are connected to the processor; the power equipment is arranged in the detection areas of the discharge detection matrix and the fault locator;

[0006] The discharge detection matrix is used to detect the discharge signal of the power equipment and transmit it to the processor. The fault locator is used to detect the operation image of the power equipment and transmit it to the processor. The processor is used to determine the discharge orientation of the power equipment based on the discharge signal, and determine the fault location of the power equipment based on the discharge orientation and the operation image.

[0007] In one embodiment, the discharge detection matrix includes an ultraviolet induction module and an ultraviolet filter, and the ultraviolet induction module is connected to the processor;

[0008] The ultraviolet filter is disposed between the ultraviolet induction module and the power equipment for filtering the ultraviolet induction module; the ultraviolet induction module is used for detecting the discharge signal of the power equipment and transmitting it to the processor.

[0009] In one embodiment, the ultraviolet induction module includes an ultraviolet lens matrix and an ultraviolet sensing matrix. The ultraviolet lens matrix is connected to the processor through the ultraviolet sensing matrix, and the ultraviolet lens matrix is disposed in contact with the ultraviolet filter.

[0010] The ultraviolet lens matrix is used for detecting the ultraviolet image of the power equipment. The ultraviolet sensing matrix obtains the discharge signal according to the ultraviolet image and transmits the discharge signal to the processor.

[0011] In one embodiment, the ultraviolet lens matrix includes a plurality of ultraviolet lenses, and the ultraviolet sensing matrix includes a plurality of ultraviolet photosensitive elements. Each of the ultraviolet photosensitive elements only includes one pixel.

[0012] The number of each of the ultraviolet lenses is the same as the number of each of the ultraviolet photosensitive elements, and the matrix formed by each of the ultraviolet lenses has the same shape as the matrix formed by each of the ultraviolet photosensitive elements; each of the ultraviolet lenses and each of the ultraviolet photosensitive elements at the same position in the two matrices are connected in one-to-one correspondence, and each of the ultraviolet photosensitive elements is connected to the processor.

[0013] In one embodiment, the number of the ultraviolet lenses is 9, and the number of the ultraviolet photosensitive elements is 9. Each of the ultraviolet lenses and each of the ultraviolet photosensitive elements respectively form a matrix of three rows and three columns.

[0014] In one embodiment, the optical axis of the fault locator is parallel to the optical axis of the ultraviolet lens located in the second row and the second column in the ultraviolet lens matrix.

[0015] In one embodiment, the included angle between the optical axes of adjacent ultraviolet lenses in the vertical direction is a first included angle, and the included angle between the optical axes of adjacent ultraviolet lenses in the horizontal direction is a second included angle.

[0016] In one embodiment, the fault locator is an infrared imager. The infrared imager includes an infrared lens and an infrared imaging sensor. The infrared lens is connected to the processor through the infrared imaging sensor.

[0017] The infrared lens is used for detecting the infrared image of the power equipment. The infrared imaging sensor is used for obtaining the operation image according to the infrared image and transmitting the operation image to the processor.

[0018] In one embodiment, the optical detection device for power equipment faults further includes a display, and the display is connected to the processor.

[0019] In a second aspect, the present application further provides a method for optically detecting power equipment faults. The method is implemented based on the optical detection device for power equipment faults described in the above embodiments, and includes:

[0020] Obtain a discharge signal and an operating image; the discharge signal is detected by a discharge detection matrix, and the operating image is detected by a fault locator;

[0021] Perform region indexing processing on the discharge signal to determine the discharge orientation of the power equipment;

[0022] Combine the operating image and the discharge orientation to determine the fault location of the power equipment.

[0023] In a third aspect, the present application further provides a device for detecting power equipment anomalies, including:

[0024] An input module for obtaining a discharge signal and an operating image; the discharge signal is detected by a discharge detection matrix, and the operating image is detected by a fault locator;

[0025] A region positioning module for performing region indexing processing on the discharge signal to determine the discharge orientation of the power equipment;

[0026] A device positioning module for combining the operating image and the discharge orientation to determine the fault location of the power equipment.

[0027] In a fourth aspect, the present application further provides a computer device, including a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0028] Obtain a discharge signal and an operating image; the discharge signal is detected by a discharge detection matrix, and the operating image is detected by a fault locator;

[0029] Perform region indexing processing on the discharge signal to determine the discharge orientation of the power equipment;

[0030] Combine the operating image and the discharge orientation to determine the fault location of the power equipment.

[0031] In a fifth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0032] Obtain a discharge signal and an operating image; the discharge signal is detected by a discharge detection matrix, and the operating image is detected by a fault locator;

[0033] Perform regional indexing processing on the discharge signal to determine the discharge orientation of the power equipment;

[0034] Combine the operating image and the discharge orientation to determine the fault location of the power equipment.

[0035] In a sixth aspect, the present application also provides a computer program product, including a computer program, which when executed by a processor implements the following steps:

[0036] Obtain a discharge signal and an operating image; the discharge signal is detected by a discharge detection matrix, and the operating image is detected by a fault locator;

[0037] Perform regional indexing processing on the discharge signal to determine the discharge orientation of the power equipment;

[0038] Combine the operating image and the discharge orientation to determine the fault location of the power equipment.

[0039] The above-mentioned power equipment fault optical detection device, method, device, computer device, computer-readable storage medium and computer program product include a discharge detection matrix, a fault locator and a processor. The discharge detection matrix and the fault locator are both connected to the processor, and the power equipment is arranged in the detection areas of the discharge detection matrix and the fault locator. The discharge detection matrix is used to detect the discharge signal of the power equipment and transmit it to the processor, the fault locator is used to detect the operating image of the power equipment and transmit it to the processor, and the processor is used to determine the discharge orientation of the power equipment based on the discharge signal and determine the fault location of the power equipment based on the discharge orientation and the operating image. The discharge orientation of the power equipment is roughly determined by the discharge detection matrix, and then the discharge location is determined in combination with the fault locator, and finally the fault location of the power equipment is determined. There is no need to use and set up an ultraviolet imager, reducing the laying cost and laying difficulty, and it can be widely applied to the detection requirements of power equipment in multiple regions, improving the detection convenience. Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments of the present application or related technologies. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0041] Figure 1 It is a schematic structural diagram of a power equipment fault optical detection device in an embodiment;

[0042] Figure 2 It is a physical schematic diagram of an optical detection device for power equipment faults in an embodiment;

[0043] Figure 3 It is a physical schematic diagram of an optical detection device for power equipment faults in another embodiment;

[0044] Figure 4 It is a partial physical schematic diagram of an optical detection device for power equipment faults in an embodiment;

[0045] Figure 5 It is a schematic diagram of the optical path field of view of an optical detection device for power equipment faults in an embodiment;

[0046] Figure 6 It is a schematic diagram of the detection area division of an optical detection device for power equipment faults in an embodiment;

[0047] Figure 7 It is a schematic flow chart of an optical detection method for power equipment faults in an embodiment;

[0048] Figure 8 It is a structural block diagram of an optical detection device for power equipment anomalies in an embodiment;

[0049] Figure 9 It is an internal structure diagram of a computer device in an embodiment. Detailed implementation manners

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the following further describes the present application in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] It can be understood that the terms "first", "second", etc. used in the present application can be used in this article to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element. For example, without departing from the scope of the present application, the first resistor can be called the second resistor, and similarly, the second resistor can be called the first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0052] It can be understood that "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if there is an electrical signal or data transmission between the connected circuits, modules, units, etc.

[0053] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprises / comprising", "has" etc. specify the presence of the stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0055] In a power system, power equipment such as substation equipment and overhead transmission lines may experience partial discharge phenomena due to reasons such as oxidation corrosion, long-term operation, and poor installation quality as the operation time increases. Each partial discharge will affect the insulating medium of the power equipment, resulting in a decrease in insulation strength. Among them, minor partial discharges have less impact on the insulation of power equipment, and the decrease in insulation strength is slower; while strong partial discharges will cause the insulation strength to drop rapidly.

[0056] Therefore, partial discharge is one of the important factors causing insulation damage to high-voltage power equipment. Currently, ultraviolet imaging is usually used to detect insulator discharge. However, ultraviolet imagers usually use area array ICCDs as the core imaging elements, including more than 400,000 photosensitive elements, with a cumbersome design, high process precision, and high cost. In the face of the detection requirements of power equipment in large areas and multiple regions in our country, the economic benefits are low, and it is difficult to popularize and apply. There are problems with insufficient convenience in the detection of power equipment.

[0057] By analyzing the discharge phenomena of power equipment, in various discharge situations of power equipment, if it can be determined which string of insulators the partial discharge of the power equipment occurs in and whether the partial discharge is in the upper, middle, or lower part of the insulator, the partial discharge positioning of the power equipment can be completed. Therefore, this application considers using an optical detection device for power equipment failures to complete the discharge detection of power equipment, without the need to use expensive and difficult-to-lay ultraviolet imagers, and without the need to use the precise discharge positioning of ultraviolet imagers, and can also complete the partial discharge detection of power equipment.

[0058] In an exemplary embodiment, as Figure 1As shown in the figure, the optical detection device for power equipment faults includes a discharge detection matrix 300, a fault locator 500, and a processor 100. Both the discharge detection matrix 300 and the fault locator 500 are connected to the processor 100. The power equipment is arranged in the detection areas of the discharge detection matrix 300 and the fault locator 500. The discharge detection matrix 300 is used to detect the discharge signal of the power equipment and transmit it to the processor 100. The fault locator 500 is used to detect the operation image of the power equipment and transmit it to the processor 100. The processor 100 is used to determine the discharge orientation of the power equipment based on the discharge signal, and determine the fault location of the power equipment based on the discharge orientation and the operation image.

[0059] Among them, the discharge detection matrix can detect the discharge situation in a specified direction or a specified detection area. When the power equipment is arranged in the detection area within the discharge detection matrix, the discharge detection matrix can detect the discharge of the power equipment. When partial discharge occurs in the power equipment, the discharge detection matrix can detect the discharge signal and transmit the discharge signal to the processor. The processor can be a signal processing board card, which can realize the functions of signal processing and analysis. Its specific model or structure is not limited in this application, as long as it can complete signal processing and analysis.

[0060] The discharge signal detected by the discharge detection matrix can be a signal with only symbolic meaning indicating the existence of partial discharge, or a signal with substantial meaning including the partial discharge intensity or the partial discharge direction. When the discharge detection matrix has a matrix structure, the elements forming the matrix structure can be to detect whether the power equipment discharges respectively and transmit the discharge signals to the processor respectively; or the elements can summarize the results of detecting whether the power equipment discharges respectively and generate a discharge signal based on this, and transmit it to the processor.

[0061] Exemplarily, when the discharge detection matrix is a matrix structure composed of 9 elements, the elements are arranged in three rows, and each row includes three elements, forming a three-row and three-column matrix structure. Each element detects different parts of the power equipment. When partial discharge occurs in the corresponding part of the power equipment, the corresponding element detects the occurrence of the discharge situation. At this time, each element can generate corresponding discharge signals for the detection results respectively, that is, 9 discharge signals, and all transmit them to the processor for processing and analysis. Each element can also summarize the results of the separate detections to obtain a discharge signal, and this discharge signal can summarize different detection results through different signal intensities, so as to facilitate the processor to analyze the discharge signal.

[0062] The fault locator has a photographing function and can photograph its detection area. When the power equipment is placed in the detection area of the fault locator, the fault locator can photograph the operating image of the power equipment. When partial discharge occurs in the power equipment, the discharge detection matrix combined with the fault locator can locate the discharge area, such as the location where corona or creeping arc occurs. At the same time, the fault locator itself can detect the temperature field distribution of the electrical equipment. Therefore, the processor receives the operating image detected by the fault locator and analyzes the real-time operating image, and can determine the location where the power equipment has an abnormality from the operating image. At this time, by combining with the discharge orientation determined based on the discharge signal, when it is determined that the abnormality is a discharge, the fault location of the power equipment can be determined. In the analysis process of the processor, the discharge detection matrix is only used for roughly positioning the discharge orientation. The specific discharge location and imaging analysis are assisted by a separate fault locator to determine. The two are combined by the processor to obtain the fault location of the power equipment. This device does not need to involve the high cost and high laying difficulty of ultraviolet imaging technology.

[0063] In this embodiment, the optical detection device for power equipment faults includes a discharge detection matrix, a fault locator, and a processor. The discharge detection matrix and the fault locator are both connected to the processor, and the power equipment is arranged in the detection areas of the discharge detection matrix and the fault locator. The discharge detection matrix is used to detect the discharge signal of the power equipment and transmit it to the processor. The fault locator is used to detect the operating image of the power equipment and transmit it to the processor. The processor is used to determine the discharge orientation of the power equipment based on the discharge signal and determine the fault location of the power equipment based on the discharge orientation and the operating image. The discharge orientation of the power equipment is roughly determined by the discharge detection matrix, and then combined with the fault locator to determine the discharge location, and finally the fault location of the power equipment is determined. There is no need to use and set up an ultraviolet imager, which reduces the application cost and laying difficulty, and can be widely applied to the detection requirements of power equipment in multiple regions, improving the detection convenience.

[0064] Further, in one embodiment, the fault locator can be an infrared imager. The infrared imager includes an infrared lens and an infrared imaging sensor. The infrared lens is connected to the processor through the infrared imaging sensor. The infrared lens is used to detect the infrared image of the power equipment, and the infrared imaging sensor is used to obtain the operating image according to the infrared image and transmit the operating image to the processor.

[0065] Among them, the infrared imager can photograph the infrared image of the power equipment. Infrared Imagery is an image that captures and displays the heat distribution or temperature difference of an object through infrared radiation (usually in the part outside the visible light in the electromagnetic spectrum). Infrared imaging technology uses the difference in infrared energy radiated by different parts of the object surface to convert it into a visible image, thereby revealing the temperature distribution or other thermal characteristics of the object surface.

[0066] The infrared imager includes an infrared lens and an infrared imaging sensor. The infrared lens captures the infrared image of the power equipment and transmits it to the infrared imaging sensor, and the infrared imaging sensor obtains the operating image based on the infrared image. The infrared imaging sensor can analyze the temperature distribution in the infrared image, and can highlight the image area with a temperature higher than the set temperature or display it in other ways to form the processed operating image.

[0067] Optionally, the infrared lens can be used to focus infrared light and accurately irradiate it onto the infrared imaging sensor. The infrared lens can be a fixed-focus lens or a zoom lens. The focal length of the fixed-focus lens is fixed and cannot be adjusted; the zoom lens can adjust the focal length within a certain range, thereby changing the shooting angle of view and range. It should be noted that when the processor can control the infrared lens to zoom in for image magnification, it may cause a decrease in the details and resolution of the image.

[0068] The infrared imaging sensor can be an infrared sensor. The infrared sensor is a sensor that uses infrared rays for data processing. It can process the infrared image captured by the infrared lens based on the thermal effect of infrared radiation to obtain an operating image strongly related to temperature. The operating image is transmitted to the processor, and the processor analyzes the operating image in combination with the discharge orientation to determine the fault location of the power equipment.

[0069] In this embodiment, by using the infrared imager to complete the confirmation of the specific discharge position of the discharge orientation and the imaging analysis of the power equipment, it has a lower cost and more mature and reliable technology compared with the ultraviolet imaging technology, which is beneficial to improving the applicability and convenience of the optical detection device for power equipment faults.

[0070] Furthermore, the infrared imager can also separately detect the temperature of the power equipment to detect the overheat fault of the power equipment. Since the infrared imager can utilize the difference in infrared energy radiated from different parts of the surface of the power equipment and convert it into a visible image, thereby revealing the temperature distribution or other thermal characteristics on the surface of the power equipment. When the power equipment has an overheat fault, the corresponding overheat position can be displayed in the operating image. When the processor does not receive a discharge signal, if it analyzes and finds that there is a position with too high a temperature on the power equipment in the operating image, it can judge that the power equipment has an overheat fault at this position. The processor can separately obtain the fault position of the power equipment with an overheat fault based on the operating image output by the infrared imager.

[0071] Optionally, the optical detection device for power equipment failures may further include a display connected to the processor. After the processor obtains the failure location of the power equipment, the failure location of the power equipment can be displayed on the display to prompt the staff. Further, the processor of the optical detection device for power equipment failures can also store and record after determining the failure location of the power equipment, summarize the previous failure locations, and display them through the display screen to prompt the staff about the partial discharge situation of the power equipment.

[0072] In one embodiment, the discharge detection matrix includes an ultraviolet induction module and an ultraviolet filter. The ultraviolet induction module is connected to the processor, and the ultraviolet filter is disposed between the ultraviolet induction module and the power equipment for filtering the ultraviolet induction module; the ultraviolet induction module is used to detect the discharge signal of the power equipment and transmit it to the processor.

[0073] Specifically, the ultraviolet induction module can detect the discharge signal of the power equipment. This discharge signal locates the azimuth of the discharge only based on the perspective of the ultraviolet induction module, and it is not mandatory for the discharge signal to be able to characterize the specific location of the partial discharge on the power equipment. For example, it is sufficient for the ultraviolet induction module to determine that the location of the partial discharge is the upper, middle, or lower part of the insulator.

[0074] The filter is an optical filter and also a lens that screens the wavelengths of light, capable of selectively transmitting light of different wavelengths. Among them, the ultraviolet filter is an optical element specifically designed to extract ultraviolet light in a specific band, usually designed to only allow ultraviolet light wavelengths within a specific range to pass through, while blocking other wavelengths of light, such as visible light or infrared light. In this embodiment, the ultraviolet filter can filter other light except ultraviolet light for the ultraviolet induction module to improve the accuracy of the ultraviolet induction module and ensure the reliability of the discharge signal. Exemplarily, the ultraviolet filter adopts a vacuum coating process and has a transmission wavelength of 240 - 280 nm.

[0075] Optionally, the optical detection device for power equipment failures further includes a housing, which serves as an outer shell to protect the discharge detection matrix, the fault locator, and the processor and provide structural support. Among them, the discharge detection matrix and the fault locator are disposed at corresponding positions of the holes opened in the housing to facilitate the detection of the power equipment. The processor is disposed inside the housing and is protected by the housing. When the discharge detection matrix includes an ultraviolet induction module and an ultraviolet filter, the ultraviolet filter can be disposed in the hole opened in the housing, and the ultraviolet induction module is disposed on the inner side of the housing corresponding to the ultraviolet filter.

[0076] Exemplarily, the optical detection device for power equipment failures such as Figure 2 and Figure 3As shown, it includes a housing 700, an ultraviolet filter 310, a fault locator 500 (which is an infrared imager), an ultraviolet sensing module 330, a processor 100, and a display screen 900. The display screen 900 and the ultraviolet filter 310 are arranged in the holes opened in the housing 700. The infrared imager is arranged at the corresponding position of the hole opened in the housing 700. The ultraviolet sensing module 330 is arranged inside the housing 700 at the position corresponding to the ultraviolet filter 310. The processor 100 is arranged in the housing in the form of a flat signal processing board.

[0077] Further, in one embodiment, the ultraviolet sensing module includes an ultraviolet lens matrix and an ultraviolet sensing matrix. The ultraviolet lens matrix is connected to the processor through the ultraviolet sensing matrix. The ultraviolet lens matrix is arranged in contact with the ultraviolet filter. The ultraviolet lens matrix is used to detect the ultraviolet image of the power equipment. The ultraviolet sensing matrix obtains a discharge signal according to the ultraviolet image and transmits the discharge signal to the processor.

[0078] Specifically, the ultraviolet lens matrix is arranged in contact with the ultraviolet filter, which can make full use of the filtering function of the ultraviolet filter, so that the ultraviolet light in the detection area collected by the ultraviolet lens matrix is relatively pure, reducing the interference of visible light and infrared light. The ultraviolet lens matrix and the ultraviolet sensing matrix are arranged in cooperation. The ultraviolet lens matrix detects the ultraviolet image of the power equipment and transmits it to the ultraviolet sensing matrix. The ultraviolet sensing matrix senses the ultraviolet light in the ultraviolet image and determines the discharge signal of the power equipment according to the abnormal ultraviolet light generated by the discharge, and then transmits the discharge signal to the processor, and the processor performs partial discharge analysis of the power equipment.

[0079] Further, in one embodiment, the ultraviolet lens matrix includes a plurality of ultraviolet lenses, and the ultraviolet sensing matrix includes a plurality of ultraviolet photosensitive elements. Each ultraviolet photosensitive element only includes one pixel. The number of each ultraviolet lens is the same as the number of each ultraviolet photosensitive element, and the matrix formed by each ultraviolet lens is the same as the matrix formed by each ultraviolet photosensitive element in shape; each ultraviolet lens and each ultraviolet photosensitive element at the same position in the two matrices are connected in one-to-one correspondence, and each ultraviolet photosensitive element is connected to the processor.

[0080] Among them, a pixel, also known as a pixel point or a pixel element, generally imaging devices are multi-pixel. For example, 640*512 means that there are pixels arranged in a 640*512 array on the photosensitive surface, that is, a total of 327,680 pixels. When imaging, 327,680 pixels will divide the image spot, and then the image is spatially subdivided, and then restored to the imaging frame through electronics.

[0081] However, each ultraviolet photosensitive element in this application only includes one ultraviolet pixel. There is no need for ultraviolet imaging. It only needs to focus the energy onto this ultraviolet pixel through the ultraviolet lens to sense the energy (discharge ultraviolet signal intensity) in the circular area in the shooting direction. The single-pixel sub-region detection method is used to reduce the use of ultraviolet pixels, thereby reducing the application cost of the optical detection device for power equipment faults in this embodiment. Exemplarily, if there are 9 ultraviolet photosensitive elements, only 9 independent ultraviolet pixels are required in this embodiment to complete the discharge positioning detection.

[0082] Specifically, the matrix formed by the ultraviolet lenses has the same shape as the matrix formed by the ultraviolet photosensitive elements, and the number of ultraviolet lenses and ultraviolet photosensitive elements is also the same. The ultraviolet lens and the ultraviolet photosensitive element at the same position in the matrix are connected to form a regional sub-lens, and the ultraviolet induction module includes multiple regional sub-lenses. Each regional sub-lens is used to capture ultraviolet images of different regions in the detection area and obtain discharge signals. Among them, the ultraviolet photosensitive elements of each regional sub-lens are connected to the processor and can send the discharge signals to the processor. Exemplarily, the regional sub-lens can be an ultraviolet camera including an ultraviolet sensor. In one embodiment, the transmission wavelength of the ultraviolet lens is 200 - 1700 nm, the ultraviolet photosensitive element is an ultraviolet sensor, and its response wavelength range is 200 - 1100 nm, and the photosensitive surfaces of the ultraviolet sensors are on one plane.

[0083] Exemplarily, in one embodiment, the number of ultraviolet lenses is 9, and the number of ultraviolet photosensitive elements is 9. Each ultraviolet lens and each ultraviolet photosensitive element respectively form a three-row and three-column matrix.

[0084] Specifically, the number of ultraviolet lenses and the number of ultraviolet photosensitive elements are both 9, and the regional sub-lenses composed of the ultraviolet lenses and the ultraviolet photosensitive elements form a three-row and three-column matrix. As Figure 4 shown, the various regional sub-lenses are numbered in a certain order, namely the first lens 331, the second lens, the third lens 333, the fourth lens 334, the fifth lens, the sixth lens 336, the seventh lens 337, the eighth lens 338, and the ninth lens 339. For the sake of beautiful and orderly illustration, Figure 4 the second lens and the fifth lens are not marked in. It can be known that the second lens is between the first lens 331 and the third lens 333, and the fifth lens is between the fourth lens 334 and the sixth lens 336. The fault locator 500 is an infrared imager, and the infrared imager is arranged above the second lens. Optionally, the infrared imager can also be arranged at other positions such as below the eighth lens 338, as long as it can have a common detection range with each regional sub-lens.

[0085] Taking Figure 4Taking the ultraviolet induction module shown as an example, since each regional sub-lens detects different regions within the detection area and jointly completes the detection of the power equipment set within the detection area, the optical field of view of each regional sub-lens is as Figure 5 shown. The ultraviolet lenses in a three-row and three-column arrangement each have nine fields of view, dividing the field of view of the detection area. Moreover, there are overlapping parts between the fields of view of each ultraviolet lens. Then, the processor can perform ultraviolet segmentation and integration analysis based on multiple ultraviolet lenses to determine a more detailed discharge orientation. Figure 5 The square in

[0086] can be the detection area of the infrared imager, and the detection areas of the two mostly overlap. Figure 4 shown, the distance between the optical axes of the fault locator and the fifth lens is 60 mm.

[0087] Optionally, the optical axes of each ultraviolet lens can be arranged in parallel or at an angle. In the case of an outward angle setting, it is beneficial for the ultraviolet lens matrix to have a larger detection area. For example, in one embodiment, the angle between the optical axes of adjacent ultraviolet lenses in the vertical direction is the first angle, and the angle between the optical axes of adjacent ultraviolet lenses in the horizontal direction is the second angle.

[0088] Specifically, the angle values of the first angle and the second angle can be the same or set to different values according to requirements. The present application does not limit the size of the angle. Exemplarily, both the first angle and the second angle can be 2 degrees. Taking Figure 4 the ultraviolet lens matrix in the ultraviolet induction module shown as an example, the angles between the ultraviolet lenses of each regional sub-lens in the horizontal and vertical directions are both 2 degrees.

[0089] That is to say, the nine ultraviolet lenses are respectively marked as the first ultraviolet lens, the second ultraviolet lens, the third ultraviolet lens, the fourth ultraviolet lens, the fifth ultraviolet lens, the sixth ultraviolet lens, the seventh ultraviolet lens, the eighth ultraviolet lens, and the ninth ultraviolet lens in the order of the regional sub-lenses. Among them, the optical axes of the fourth ultraviolet lens, the fifth ultraviolet lens, and the sixth ultraviolet lens are on the same horizontal plane I', and the optical axes of the second ultraviolet lens, the fifth ultraviolet lens, and the eighth ultraviolet lens are on the same vertical plane II'. The optical axis of the fourth ultraviolet lens and the optical axis of the fifth ultraviolet lens form a 2° angle along the horizontal plane; the optical axis of the sixth ultraviolet lens and the optical axis of the fifth ultraviolet lens form a 2° angle along the horizontal plane; the optical axis of the second ultraviolet lens and the optical axis of the fifth ultraviolet lens form a 2° angle along the vertical plane; the optical axis of the eighth ultraviolet lens and the optical axis of the fifth ultraviolet lens form a 2° angle along the vertical plane; the optical axes of the first ultraviolet lens, the third ultraviolet lens, the seventh ultraviolet lens, and the ninth ultraviolet lens form a 2° angle with the optical axis of the fifth ultraviolet lens along both the horizontal plane and the vertical plane, and all show a tendency to open outwards.

[0090] Then, the field of view angle of the square detection area formed by the infrared imager is 5°×5°, and the full field angle of the detection area formed by the ultraviolet induction module is 4°×4°.

[0091] Based on Figure 4 and Figure 5 , nine circular ultraviolet detection areas corresponding to the ultraviolet induction module can be obtained, which are respectively marked as area A, area B, area C, area D, area E, area F, area G, area H, and area I. The nine circular ultraviolet detection areas overlap with each other to form 40 ultraviolet field-of-view overlapping areas, denoted as (1), (2)... (40), as shown in Figure 6 . If the letters A, B... I are used to represent that there is partial discharge in each regional sub-lens in the nine detection areas, and ¯A, ¯B... ¯I are used to represent that there is no partial discharge in each regional sub-lens in the nine detection areas, then the discharge signals corresponding to the discharge phenomena in each area are as follows:

[0092] (1) = {¯A, B, ¯C, ¯D, E, ¯F, ¯G, ¯H, ¯I}

[0093] (2) = {¯A, B, ¯C, D, E, F, ¯G, ¯H, ¯I}

[0094] (3) = {¯A, B, ¯C, ¯D, E, F, ¯G, ¯H, ¯I}

[0095] (4) = {¯A, ¯B, ¯C, D, E, ¯F, ¯G, H, ¯I}

[0096] (5) = {¯A, ¯B, ¯C, ¯D, E, F, ¯G, H, ¯I}

[0097] (6) = {¬A, ¬B, ¬C, D, E, ¬F, ¬G, ¬H, ¬I}

[0098] (7) = {¬A, ¬B, ¬C, ¬D, E, F, ¬G, ¬H, ¬I}

[0099] (8) = {¬A, B, ¬C, ¬D, E, ¬F, ¬G, H, ¬I}

[0100] (9) = {A, B, ¬C, ¬D, E, ¬F, ¬G, ¬H, ¬I}

[0101] (10) = {¬A, B, C, ¬D, E, ¬F, ¬G, ¬H, ¬I}

[0102] (11) = {A, B, C, ¬D, E, F, ¬G, ¬H, ¬I}

[0103] (12) = {¬A, ¬B, C, ¬D, E, F, ¬G, ¬H, ¬I}

[0104] (13) = {¬A, ¬B, ¬C, ¬D, E, F, ¬G, ¬H, I}

[0105] (14) = {¬A, ¬B, ¬C, ¬D, E, F, ¬G, H, I}

[0106] (15) = {¬A, ¬B, ¬C, ¬D, E, ¬F, ¬G, H, I}

[0107] (16) = {¬A, ¬B, ¬C, ¬D, E, ¬F, G, H, I}

[0108] (17) = {¬A, ¬B, ¬C, D, E, ¬F, ¬G, ¬H, ¬I}

[0109] (18) = {¬A, ¬B, ¬C, D, E, ¬F, G, ¬H, ¬I}

[0110] (19) = {A, ¬B, ¬C, D, E, ¬F, ¬G, ¬H, ¬I}

[0111] (20) = {A, B, ¬C, D, E, ¬F, ¬G, ¬H, ¬I}

[0112] (21) = {A, B, ¬C, D, ¬E, ¬F, ¬G, ¬H, ¬I}

[0113] (22) = {¬A, B, C, ¬D, ¬E, F, ¬G, ¬H, ¬I}

[0114] (23) = {¬A, ¬B, ¬C, ¬D, ¬E, F, ¬G, H, I}

[0115] (24) = {¬A, ¬B, ¬C, D, ¬E, ¬E, G, H, ¬I}

[0116] (25) = {A, B, ¬C, ¬D, ¬E, ¬F, ¬G, ¬H, ¬I}

[0117] (26) = {¬A, B, C, ¬D, ¬E, ¬F, ¬G, ¬H, ¬I}

[0118] (27) = {¬A, ¬B, C, ¬D, ¬E, F, ¬G, ¬H, ¬I}

[0119] (28) = {¬A, ¬B, ¬C, ¬D, ¬E, F, ¬G, ¬H, I}

[0120] (29) = {¬A, ¬B, ¬C, ¬D, ¬E, ¬F, ¬G, H, I}

[0121] (30) = {¬(A), ¬B, ¬C, ¬D, ¬E, ¬F, G, H, ¬I}

[0122] (31) = {¬A, ¬B, ¬C, D, ¬E, ¬F, G, ¬H, ¬I}

[0123] (32) = {A, ¬B, ¬C, D, ¬E, ¬F, ¬G, ¬H, ¬I}

[0124] (33) = {¬A, B, ¬C, ¬D, ¬E, ¬F, ¬G, ¬H, ¬I}

[0125] (34) = {¬A, ¬B, C, ¬D, ¬E, ¬F, ¬G, ¬H, ¬I}

[0126] (35) = {¬A, ¬B, ¬C, ¬D, ¬E, F, ¬G, ¬H, ¬I}

[0127] (36) = {¬A, ¬B, ¬C, ¬D, ¬E, ¬F, ¬G, ¬H, I}

[0128] (37) = {¬A, ¬B, ¬C, ¬D, ¬E, ¬F, ¬G, H, ¬I}

[0129] (38) = {¬A, ¬B, ¬C, ¬D, ¬E, ¬F, G, ¬H, ¬I}

[0130] (39) = {¬A, ¬B, ¬C, D, ¬E, ¬F, ¬G, ¬H, ¬I}

[0131] (40) = {A, ¬B, ¬C, ¬D, ¬E, ¬F, ¬G, ¬H, ¬I}

[0132] Form a regional index with the above expression, and process and store the regional index in the processor through an algorithm. When the processor receives different discharge signals, it matches with the above regional index to determine which area within the 40 areas the discharge area is, that is, the discharge orientation. Then, combined with the running image of the fault locator and using the temperature display of the infrared image for the power equipment, the accurate fault location of the partial discharge in the power equipment is determined.

[0133] In an exemplary embodiment, as Figure 7 shown, a method for optical detection of power equipment faults is provided. Taking the method applied to the Figure 1 processor 100 in it as an example, the following steps 702 to 706 are included. Among them:

[0134] Step 702, obtain the discharge signal and the running image.

[0135] Among them, the discharge signal is detected by the discharge detection matrix, and the running image is detected by the fault locator. The power equipment is arranged in the detection area within the discharge detection matrix, and the discharge detection matrix can perform discharge detection on the power equipment. When there is a partial discharge condition in the power equipment, the discharge detection matrix can detect the discharge signal and transmit the discharge signal to the processor. The power equipment is placed in the detection area of the fault locator, and the fault locator has a shooting function and can shoot the running image of the power equipment. For example, when there is a partial discharge in the power equipment, the fault locator can shoot the discharge phenomenon, such as an electric arc or a temperature change.

[0136] Specifically, the processor is connected to the discharge detection matrix and the fault locator, and can obtain the discharge signal from the data interaction with the discharge detection matrix and obtain the running image from the interaction with the fault locator.

[0137] Step 704, perform regional index processing on the discharge signal to determine the discharge orientation of the power equipment.

[0138] Specifically, since the discharge detection matrix divides the detection area into multiple areas in a matrix form, that is, when different areas trigger partial discharge, the obtained discharge signals will be different. The processor stores the regional index algorithm corresponding to the discharge signal, and can, after performing regional index processing on the discharge signal, determine the corresponding area within the detection area where the partial discharge occurs, that is, determine the discharge orientation of the partial discharge fault occurring in the power equipment.

[0139] Exemplarily, as shown in the foregoing embodiment, the discharge detection matrix is overlapped by nine detection areas and divided into 40 areas, and the processor correspondingly stores 40 corresponding regional indexes. Then, by comparing and analyzing the received discharge signal with the regional index, it can be determined which area has a partial discharge.

[0140] Step 706: Determine the fault location of the power equipment by combining the operating image and the discharge orientation.

[0141] Specifically, the processor receives the operating image detected by the fault locator and analyzes the real-time operating image, so as to determine the location where the power equipment has an abnormality from the operating image. At this time, by combining the discharge orientation determined based on the discharge signal, the fault location of the power equipment can be determined when it is determined that the abnormality is a discharge. In the analysis process of the processor, the discharge detection matrix is only used for roughly positioning the discharge orientation, and the specific discharge location and imaging analysis are assisted by a separate fault locator. The combination of the two enables the processor to obtain the fault location of the power equipment.

[0142] In the above optical detection method for power equipment faults, it includes obtaining the discharge signal and the operating image, performing region indexing processing on the discharge signal to determine the discharge orientation of the power equipment, and combining the operating image and the discharge orientation to determine the fault location of the power equipment. Among them, the discharge signal is detected by the discharge detection matrix, and the operating image is detected by the fault locator. The discharge orientation of the power equipment is roughly determined through the discharge signal of the discharge detection matrix, and then the image of the power equipment is analyzed by combining the operating image of the fault locator, and finally the fault location of the power equipment is determined. There is no need to use and set up an ultraviolet imager, which reduces the popularization cost and difficulty, and can be widely applied to the detection requirements of power equipment in multiple regions, improving the detection convenience.

[0143] It should be understood that although each step in the flowcharts involved in the above-described embodiments is shown in sequence according to the indication of the arrows, these steps do not necessarily need to be executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages do not necessarily need to be executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential either, but can be executed alternately or in turn with at least a part of other steps or steps or stages in other steps.

[0144] Based on the same inventive concept, an embodiment of the present application also provides a power equipment abnormality detection device for implementing the above-mentioned optical detection method for power equipment faults. The solution provided by this device to solve the problem is similar to the solution described in the above method. Therefore, the specific limitations in one or more embodiments of the power equipment abnormality detection device provided below can refer to the limitations on the optical detection method for power equipment faults in the above text, and will not be repeated here.

[0145] In an exemplary embodiment, as Figure 8 shown, a power equipment anomaly detection device is provided, including: an input module 820, a region positioning module 840, and a device positioning module 860, where:

[0146] The input module 820 is configured to obtain a discharge signal and an operation image; the discharge signal is detected by a discharge detection matrix, and the operation image is detected by a fault locator;

[0147] The region positioning module 840 is configured to perform region indexing processing on the discharge signal to determine the discharge orientation of the power equipment;

[0148] The device positioning module 860 is configured to determine the fault location of the power equipment by combining the operation image and the discharge orientation.

[0149] Each module in the above power equipment anomaly detection device can be implemented in whole or in part by software, hardware, and their combination. Each of the above modules can be embedded in or independent of a processor in a computer device in the form of hardware, or stored in a memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0150] In an exemplary embodiment, a computer device is provided. The computer device can be a terminal, and its internal structure diagram can be as Figure 9As shown in the figure. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. Among them, the processor, the memory, and the input / output interface are connected through a system bus, and the communication interface, the display unit, and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, near field communication (NFC), or other technologies. When the computer program is executed by the processor, it implements an optical detection method for power equipment failures. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer covered on the display screen, or a button, a trackball, or a touchpad provided on the computer device housing, or an external keyboard, a touchpad, or a mouse, etc.

[0151] Those skilled in the art can understand that Figure 9 the structure shown in the figure is only a block diagram of some structures related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0152] In an exemplary embodiment, a computer device is provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, the following steps are implemented:

[0153] Obtain a discharge signal and an operating image; the discharge signal is detected by a discharge detection matrix, and the operating image is detected by a fault locator;

[0154] Perform region indexing processing on the discharge signal to determine the discharge orientation of the power equipment;

[0155] Combine the operating image and the discharge orientation to determine the fault location of the power equipment.

[0156] In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0157] Obtain the discharge signal and the operation image; the discharge signal is detected by the discharge detection matrix, and the operation image is detected by the fault locator;

[0158] Perform regional indexing processing on the discharge signal to determine the discharge orientation of the power equipment;

[0159] Combine the operation image and the discharge orientation to determine the fault location of the power equipment.

[0160] In one embodiment, a computer program product is provided, including a computer program, which when executed by a processor implements the following steps:

[0161] Obtain the discharge signal and the operation image; the discharge signal is detected by the discharge detection matrix, and the operation image is detected by the fault locator;

[0162] Perform regional indexing processing on the discharge signal to determine the discharge orientation of the power equipment;

[0163] Combine the operation image and the discharge orientation to determine the fault location of the power equipment.

[0164] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in the present application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in the present application can be general-purpose processors, central processors, graphics processors, digital signal processors, programmable logic devices, data processing logics based on quantum computing, artificial intelligence (AI) processors, etc., without limitation.

[0165] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in the present application.

[0166] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. An optical detection device for power equipment faults, characterized in that: The device comprises a discharge detection matrix, a fault locator and a processor, wherein the discharge detection matrix and the fault locator are both connected to the processor; the power equipment is arranged in the detection area of ​​the discharge detection matrix and the fault locator; The discharge detection matrix is ​​used to detect the discharge signal of the power equipment and transmit it to the processor. The fault locator is used to detect the operation image of the power equipment and transmit it to the processor. The processor is used to determine the discharge direction of the power equipment based on the discharge signal, and determine the fault location of the power equipment based on the discharge direction and the operation image.

2. The optical detection device for power equipment fault according to claim 1, characterized in that: The discharge detection matrix includes an ultraviolet sensing module and an ultraviolet filter, and the ultraviolet sensing module is connected to the processor; The ultraviolet filter is arranged between the ultraviolet sensing module and the electric equipment, and is used for filtering the ultraviolet sensing module; the ultraviolet sensing module is used for detecting the discharge signal of the electric equipment and transmitting it to the processor.

3. The optical detection device for power equipment fault according to claim 2, characterized in that: The ultraviolet sensing module includes an ultraviolet lens matrix and an ultraviolet sensor matrix, the ultraviolet lens matrix is ​​connected to the processor through the ultraviolet sensor matrix, and the ultraviolet lens matrix is ​​arranged in contact with the ultraviolet filter; The ultraviolet lens matrix is ​​used to detect the ultraviolet image of the electric equipment, and the ultraviolet sensor matrix obtains the discharge signal according to the ultraviolet image and transmits the discharge signal to the processor.

4. The optical detection device for electric power equipment fault according to claim 3, characterized in that: The ultraviolet lens matrix includes a plurality of ultraviolet lenses, the ultraviolet sensor matrix includes a plurality of ultraviolet light sensitive elements, and each of the ultraviolet light sensitive elements includes only one pixel; The number of the ultraviolet lenses is the same as the number of the ultraviolet photosensitive elements, and the matrix formed by the ultraviolet lenses has the same shape as the matrix formed by the ultraviolet photosensitive elements; the ultraviolet lenses at the same position in the two matrices are connected to the ultraviolet photosensitive elements in a one-to-one correspondence, and each ultraviolet photosensitive element is connected to the processor.

5. The optical detection device for power equipment fault according to claim 4, characterized in that: The number of the ultraviolet lenses is 9, the number of the ultraviolet light sensitive elements is 9, and each of the ultraviolet lenses and each of the ultraviolet light sensitive elements forms a matrix of three rows and three columns.

6. The optical detection device for electric power equipment fault according to claim 5, characterized in that: The optical axis of the fault locator is parallel to the optical axis of the ultraviolet lens located in the second row and the second column of the ultraviolet lens matrix.

7. The optical detection device for electric power equipment fault according to claim 4, characterized in that: The angle between the optical axes of the adjacent ultraviolet lenses in the vertical direction is a first angle, and the angle between the optical axes of the adjacent ultraviolet lenses in the horizontal direction is a second angle.

8. The optical detection device for power equipment fault according to any one of claims 1 to 7, characterized in that: The fault locator is an infrared imager, which includes an infrared lens and an infrared imaging sensor, and the infrared lens is connected to the processor via the infrared imaging sensor; The infrared lens is used to detect the infrared image of the electric equipment, and the infrared imaging sensor is used to obtain the operation image according to the infrared image and transmit the operation image to the processor.

9. The optical detection device for electric power equipment fault according to claim 1, characterized in that: The optical detection device for electric power equipment faults further includes a display connected to the processor.

10. A method for optically detecting faults in electric power equipment, characterized in that: The method is implemented based on the optical detection device for faults of electric power equipment according to any one of claims 1 to 9, comprising: Acquire a discharge signal and an operation image; the discharge signal is detected by a discharge detection matrix, and the operation image is detected by a fault locator; Performing regional index processing on the discharge signal to determine the discharge orientation of the power equipment; The fault location of the electric power equipment is determined by combining the operation image and the discharge orientation.

Images