Converter valve suspected water leakage component or waterway connection point positioning method and device

Abstract

The invention provides a converter valve suspected water leakage component or waterway connection point positioning method and device, and the method comprises the steps: taking a light spot, which is naturally formed on a converter valve insulator through the irradiation of line laser, as a transformation reference point according to a converter valve laser water leakage display image and the position coordinates of a water leakage light spot in the image; the horizontal relative coordinates of the water leakage point in the converter valve are speculated in an image coordinate perspective transformation mode; based on the horizontal relative coordinates of the water leakage point in the converter valve, the water leakage fault occurrence position of the converter valve is deduced; wherein the water leakage fault occurrence position of the converter valve comprises a part in a valve layer or a waterway connection point. According to the invention, the range of the water leakage fault positioning of the converter valve can be further narrowed, a specific part or a waterway connection point of a certain valve layer can be accurately positioned, and the time for field operation and maintenance personnel to discover and position the water leakage fault of the converter valve can be greatly shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation and power transmission and transformation, and in particular to a method and device for locating suspected leaking parts or waterway connection points of a converter valve. Background Art

[0002] The converter valve is the core equipment of the power transmission project. In the project, a cooling system with deionized water as the cooling medium is set up in the converter valve. The water machine provides circulating power, and a complete cooling water path directly reaching the heat dissipation surface of the power electronic power unit is formed through the converter valve main water pipe, valve layer water pipe, branch water pipe, power unit radiator and other components. The cooling water path of the valve tower of a single converter station contains nearly a thousand water connection points, and the water connection points are well sealed by polymer material sealing rings through thread extrusion. Under long-term engineering stress, due to the influence of material aging, maintenance activities, etc., the converter valve water-cooled resistor, saturated reactor, water pipe, flange and other components and water connection points may leak under the pressure of the cooling medium in operating conditions.

[0003] The leakage of the converter valve directly affects the insulation performance of the power electronic power unit, and there is a hidden danger of causing a short circuit in the power electronic power unit. When the cooling medium penetrates into the optical fiber and the surface of the insulating support parts, it may cause partial discharge of the converter valve. In severe cases, it may cause a fire due to the loss of power unit redundancy or long-term discharge, which directly causes the DC transmission line to shut down. Therefore, it is necessary to take certain technical means to monitor the leakage of the converter valve to avoid serious power production accidents.

[0004] In order to monitor the leakage of the converter valve, the current engineering method is to use the method of concentrating the bottom of the converter valve to the flip-type leakage detection device to detect the leakage of the converter valve, and at the same time, to lay leakage test paper in the centralized confluence tray, and observe whether the test paper changes color through manual inspection to determine whether a leakage fault has occurred. The above methods are unable to locate leakage faults at the component level or connection point level in terms of positioning capability.

[0005] Comparative Document 1 "CN202311048594.9" proposes a space liquid drop detection system, method and computer equipment, and proposes a method and equipment that uses a line laser to visualize water leakage events in space and detects water leakage events through image analysis. This invention has the ability to monitor early leakage faults and can greatly improve the accuracy of converter valve leakage monitoring. However, this invention does not disclose a converter valve leakage fault location method based on line laser leakage visualization combined with image recognition method, and does not solve the problem of inferred positioning and highlighting of converter valve leakage fault components or waterway connection points. Summary of the invention

[0006] In order to solve the problem that the existing technologies cannot locate water leakage faults at the component level or the connection point level in terms of positioning capability, the present invention proposes a method for locating suspected water leakage components or waterway connection points of a converter valve, comprising:

[0007] According to the laser leakage visualization image of the converter valve and the position coordinates of the leakage spot in the image, the horizontal relative coordinates of the leakage point inside the converter valve are inferred by using the perspective transformation of the image coordinates;

[0008] The location where the water leakage fault of the converter valve occurs is inferred based on the horizontal relative coordinates of the water leakage point inside the converter valve.

[0009] Preferably, the method of inferring the horizontal relative coordinates of the leakage point inside the converter valve by perspective transformation of the image coordinates based on the laser leakage visualization image of the converter valve and the position coordinates of the leakage spot in the image includes:

[0010] Determine a change matrix based on the position coordinates of a reference point in the converter valve space in the same plane as the water leakage spot in the converter valve perspective view and the relative position coordinates in the actual converter valve;

[0011] The horizontal relative coordinates of the leakage point inside the converter valve are determined based on the pixel coordinates of the leakage spot position in the image in combination with the change matrix.

[0012] Preferably, the step of determining the change matrix based on the position coordinates of the reference point in the converter valve space in the same plane as the water leakage spot in the converter valve perspective view and the relative position coordinates in the actual converter valve comprises:

[0013] The light spot naturally formed by the line laser irradiating the converter valve insulator is used as the transformation reference point, and the pixel coordinates of the positions of n reference points in the converter valve space in the same plane as the water leakage light spot in the converter valve perspective image are selected as the converter valve space reference points, n≥4; and the pixel coordinates of the light spot corresponding to the converter valve space reference point in the image are determined;

[0014] Determining the relative position coordinates of the light spot in the actual converter valve according to the structural dimensions of the converter valve;

[0015] The light spots corresponding to the spatial reference points of the converter valve are grouped according to a set number, and a change matrix is ​​determined based on the position pixel coordinates and relative position coordinates corresponding to each group of light spots.

[0016] Preferably, the determining the horizontal relative coordinates of the leakage point inside the converter valve based on the pixel coordinates of the leakage spot position in the image in combination with the change matrix includes:

[0017] Based on the spatial reference points, the coordinate transformation linear equations corresponding to the pixel coordinates of the water leak spot position in the image are written out to obtain several transformation matrices;

[0018] Calculating a number of relative position coordinates inside the converter valve after transformation based on the number of change matrices;

[0019] Based on the said several relative position coordinates, a data processing method is used to obtain the relative position coordinates of the leaking light spot in the converter valve;

[0020] Among them, the data processing methods include: mean value method, median method, weight method and statistical method.

[0021] Preferably, after inferring the location where the water leakage fault of the converter valve occurs based on the horizontal relative coordinates of the water leakage point inside the converter valve, the method further includes:

[0022] The location of suspected water leakage is displayed based on a high-fidelity 3D model.

[0023] Preferably, the displaying of the suspected water leakage fault location based on the high-fidelity three-dimensional model includes:

[0024] Determine the location of the water leakage monitoring device based on the location of the suspected water leakage fault;

[0025] Determine the valve layer where the water leakage fault is located based on the location of the water leakage monitoring device and the structure of the converter valve;

[0026] Based on the horizontal relative coordinates of the leaking point inside the converter valve and the projection areas of each component or water connection point in the valve layer where the leaking fault is located on the horizontal plane, the number of the suspected leaking component or water connection point is determined;

[0027] Based on the numbering of the suspected leaking components or water channel connection points, graphics are used to display the suspected leaking components or water channel connection points in a high-fidelity three-dimensional model.

[0028] Preferably, the method of determining the number of the suspected leaking component or water channel connection point based on the horizontal relative coordinates of the leaking point inside the converter valve and the projection area of ​​each component or water channel connection point in the valve layer where the leaking fault is located on the horizontal plane comprises:

[0029] Determine whether the horizontal relative coordinates of the leakage point inside the converter valve intersect with the projection areas of the components or water channel connection points in the valve layer where the leakage fault is located on the horizontal plane;

[0030] If there is an intersection, the component or water connection point number corresponding to the intersection is the suspected leaking component or water connection point number, otherwise there is no suspected leaking component or water connection point number.

[0031] In another aspect, the present invention further provides a device for locating suspected leaking components or waterway connection points of a converter valve, comprising:

[0032] The calculation unit is used to infer the horizontal relative coordinates of the leakage point inside the converter valve based on the laser leakage display image of the converter valve and the position coordinates of the leakage spot in the image by using the image coordinate perspective transformation method; and to infer the location where the converter valve leakage fault occurs based on the horizontal relative coordinates of the leakage point inside the converter valve.

[0033] Preferably, the computing unit comprises:

[0034] A change matrix determination subunit, used to determine the change matrix based on the position coordinates of a reference point in the converter valve space in the same plane as the water leakage spot in the converter valve perspective view and the relative position coordinates in the actual converter valve;

[0035] A horizontal coordinate determination subunit, used to determine the horizontal relative coordinates of the leakage point inside the converter valve based on the pixel coordinates of the leakage spot position in the image in combination with the change matrix;

[0036] The fault locating subunit is used to infer the location where the water leakage fault of the converter valve occurs based on the horizontal relative coordinates of the water leakage point inside the converter valve.

[0037] Preferably, the change matrix determination subunit is specifically used for:

[0038] The light spot naturally formed by the line laser irradiating the converter valve insulator is used as the transformation reference point, and the pixel coordinates of the positions of n reference points in the converter valve space in the same plane as the water leakage light spot in the converter valve perspective image are selected as the converter valve space reference points, n≥4; and the pixel coordinates of the light spot corresponding to the converter valve space reference point in the image are determined;

[0039] Determining the relative position coordinates of the light spot in the actual converter valve according to the structural dimensions of the converter valve;

[0040] The light spots corresponding to the spatial reference points of the converter valve are grouped according to a set number, and a change matrix is ​​determined based on the position pixel coordinates and relative position coordinates corresponding to each group of light spots.

[0041] Preferably, the horizontal coordinate determination subunit is specifically used for:

[0042] Based on the spatial reference points, the coordinate transformation linear equations corresponding to the pixel coordinates of the water leak spot position in the image are written out to obtain several transformation matrices;

[0043] Calculating a number of relative position coordinates inside the converter valve after transformation based on the number of change matrices;

[0044] Based on the said several relative position coordinates, a data processing method is used to obtain the relative position coordinates of the leaking light spot in the converter valve;

[0045] Among them, the data processing methods include: mean value method, median method, weight method and statistical method.

[0046] Preferably, it also includes a three-dimensional model display unit for displaying the location of the suspected water leakage fault based on the high-fidelity three-dimensional model.

[0047] Preferably, the three-dimensional model display unit is specifically used for:

[0048] Determine the location of the water leakage monitoring device based on the location of the suspected water leakage fault;

[0049] Determine the valve layer where the water leakage fault is located based on the location of the water leakage monitoring device and the structure of the converter valve;

[0050] Based on the horizontal relative coordinates of the leaking point inside the converter valve and the projection areas of each component or water connection point in the valve layer where the leaking fault is located on the horizontal plane, the number of the suspected leaking component or water connection point is determined;

[0051] Based on the numbering of the suspected leaking components or water channel connection points, graphics are used to display the suspected leaking components or water channel connection points in a high-fidelity three-dimensional model.

[0052] Preferably, the three-dimensional model display unit determines the number of the suspected leaking component or water channel connection point based on the horizontal relative coordinates of the leaking point inside the converter valve and the projection area of ​​each component or water channel connection point in the valve layer where the leaking fault is located on the horizontal plane, and the specific implementation steps include:

[0053] Determine whether the horizontal relative coordinates of the leakage point inside the converter valve intersect with the projection areas of the components or water channel connection points in the valve layer where the leakage fault is located on the horizontal plane;

[0054] If there is an intersection, the component or water connection point number corresponding to the intersection is the suspected leaking component or water connection point number, otherwise there is no suspected leaking component or water connection point number.

[0055] Preferably, it further comprises a communication unit;

[0056] The communication unit is used to communicate with one or more converter valve leakage monitoring devices based on the laser visualization principle to obtain laser leakage visualization images and laser leakage spot pixel position coordinates and other data. The invented communication unit can also communicate with other devices or systems to exchange data.

[0057] Preferably, it also includes a control unit;

[0058] The control unit is used to connect with other functional units and to coordinate and control the work of other functional units.

[0059] Preferably, it also includes a human-computer interaction unit;

[0060] The human-computer interaction unit is used to realize the interaction between the device and the management personnel or the converter station operators, and supports the personnel to view the device information and manage the device. At the same time, when a water leakage fault occurs, it can remind the converter station operators of the water leakage fault through various signals such as display screen, sound signal, light signal, etc., and intuitively locate and display the suspected leaking components or water connection points in the three-dimensional high-fidelity model through the screen.

[0061] In another aspect, the present application further provides an electronic device, comprising: at least one processor and a memory; the memory and the processor are connected via a bus;

[0062] The memory is used to store one or more programs;

[0063] When the one or more programs are executed by the at least one processor, a method for locating a suspected leaking component or a water channel connection point of a converter valve as described above is implemented.

[0064] On the other hand, the present application also provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed, a method for locating a suspected leaking component or a water connection point of a converter valve as described above is implemented.

[0065] Compared with the prior art, the present invention has the following beneficial effects:

[0066] The present invention provides a method for locating suspected leaking components or waterway connection points of a converter valve, comprising: inferring the horizontal relative coordinates of the leaking point inside the converter valve by using the perspective transformation of the image coordinates based on the laser leaking image of the converter valve and the position coordinates of the leaking spot in the image; inferring the location of the converter valve leakage fault based on the horizontal relative coordinates of the leaking point inside the converter valve; wherein the location of the converter valve leakage fault includes: components or waterway connection points inside the valve layer. The present invention can further narrow the scope of locating the converter valve leakage fault, and can be accurate to the specific components or waterway connection points of a certain valve layer, which can greatly shorten the time for on-site operation and maintenance personnel to discover and locate the converter valve leakage fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 A flow chart of a method for locating suspected leaking parts or waterway connection points of a converter valve according to the present invention;

[0068] Figure 2 It is a flow chart of the horizontal space positioning method of the converter valve leakage fault point of the present invention;

[0069] Figure 3 A flow chart of a three-dimensional display method of suspected leaking parts or waterway connection points of a converter valve according to the present invention;

[0070] Figure 4It is a schematic diagram of the arrangement structure of a typical valve hall lower flow change valve and a water leakage monitoring device of the present invention;

[0071] Figure 5 It is a schematic structural diagram of the components of the converter station valve hall water leakage detection device and system of the present invention;

[0072] Figure 6 It is a picture showing the leakage of the converter valve and the light spot detection result in the embodiment of the present invention;

[0073] Figure 7 It is a schematic diagram of the projection result of the converter valve component and the horizontal position of the light spot of the water leakage fault in the embodiment of the present invention;

[0074] Figure 8 The figure is a schematic diagram of the structure of an electronic device of the present invention. DETAILED DESCRIPTION

[0075] The present invention proposes a method for locating suspected leaking components or waterway connection points of a converter valve, which can infer the horizontal position of the converter valve leakage spot in the converter valve space by processing and calculating the laser leakage display image of the converter valve and the pixel coordinate position of the leakage spot in the image, and further infer the suspected leaking valve layer and the suspected leaking component or waterway connection point of the converter valve, and process the laser leakage display image data of the converter valve that has been identified to contain the leaking laser spot, so as to realize the calculation of the horizontal coordinates of the converter valve leakage fault space and the inference and positioning of the suspected leaking component or waterway connection point and the display in the high-fidelity three-dimensional model. The high-fidelity three-dimensional model is used to intuitively display the location of the suspected leakage fault, so as to help the converter station operation and maintenance personnel quickly determine the location of the converter valve leakage fault, and directly support the work of the converter station operation and maintenance personnel.

[0076] In order to better understand the present invention, the content of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0077] Embodiment 1:

[0078] A method for locating suspected leaking parts or water connection points of a converter valve, such as Figure 1 As shown, including:

[0079] Step S1: Based on the laser water leakage display image of the converter valve and the position coordinates of the water leakage spot in the image, the horizontal relative coordinates of the water leakage point inside the converter valve are inferred by using the perspective transformation of the image coordinates;

[0080] Step S2: inferring the location where the water leakage fault of the converter valve occurs based on the horizontal relative coordinates of the water leakage point inside the converter valve;

[0081] Wherein, the location where the water leakage failure of the converter valve occurs includes: internal components of the valve layer or water channel connection points.

[0082] Step S1: Based on the laser water leakage display image of the converter valve and the position coordinates of the water leakage spot in the image, the horizontal relative coordinates of the water leakage point inside the converter valve are inferred by using the perspective transformation of the image coordinates, including:

[0083] Determine a change matrix based on the position coordinates of a reference point in the converter valve space in the same plane as the water leakage spot in the converter valve perspective view and the relative position coordinates in the actual converter valve;

[0084] The horizontal relative coordinates of the leakage point inside the converter valve are determined based on the pixel coordinates of the leakage spot position in the image in combination with the change matrix.

[0085] Further, the determination of the change matrix based on the position coordinates of the reference point in the converter valve space in the same plane as the water leakage spot in the converter valve perspective view and the relative position coordinates in the actual converter valve includes:

[0086] Since there are multiple insulators in all converter valve devices, and the light spot formed by the line laser on the insulator is naturally in the same plane as the water leakage spot, the light spot naturally formed by the line laser irradiating the converter valve insulator is used as the transformation reference point, and the position pixel coordinates of n reference points in the converter valve space in the same plane as the water leakage spot in the converter valve perspective image are selected as the converter valve space reference points, n≥4; and the pixel coordinates of the light spot corresponding to the converter valve space reference point in the image are determined;

[0087] Determining the relative position coordinates of the light spot in the actual converter valve according to the structural dimensions of the converter valve;

[0088] The light spots corresponding to the spatial reference points of the converter valve are grouped according to a set number, and a change matrix is ​​determined based on the position pixel coordinates and relative position coordinates corresponding to each group of light spots.

[0089] Furthermore, the determining of the horizontal relative coordinates of the leakage point inside the converter valve based on the pixel coordinates of the leakage spot position in the image in combination with the change matrix includes:

[0090] Based on the spatial reference points, the coordinate transformation linear equations corresponding to the pixel coordinates of the water leak spot position in the image are written out to obtain several transformation matrices;

[0091] Calculating a number of relative position coordinates inside the converter valve after transformation based on the number of change matrices;

[0092] Based on the said several relative position coordinates, a data processing method is used to obtain the relative position coordinates of the leaking light spot in the converter valve;

[0093] Among them, the data processing methods include: mean value method, median method, weight method and statistical method.

[0094] Step S1 specifically includes:

[0095] A method for calculating the horizontal positioning of a water leakage spot in a converter valve laser water leakage visualization image in a converter valve space is proposed. The method aims to process the converter valve laser water leakage visualization image and infer the horizontal position of the converter valve laser water leakage visualization spot in the converter valve space by inferring and calculating the positions of several key points in the image data.

[0096] This application uses the image coordinate perspective transformation method to infer the horizontal relative coordinates of the leakage point inside the converter valve based on the laser leakage display image of the converter valve and the leakage spot position coordinates. Figure 2 As shown, it includes three main steps: determining the spatial reference point of the converter valve, calculating the coordinate transformation matrix, and calculating the horizontal relative coordinates.

[0097] The purpose of determining the spatial reference point of the converter valve is to determine the position pixel coordinates of four reference points in the converter valve space that are in the same plane as the water leakage spot in the perspective image of the converter valve. The main principle is that the line laser used for water leakage visualization is arranged horizontally, so when the line laser is irradiated on the converter valve parts, a significant light spot consistent with the wavelength characteristics of the laser used can be formed. Using the light spot naturally formed on the converter valve insulator when the line laser is irradiated as the transformation reference point, at least four light spots can be used as the converter valve space reference point to determine the position pixel coordinates Loc of n light spots in the image. Dix_i (u i , v i )(i=1,2,...,n),u i is the horizontal pixel coordinate of the ith light spot in the image, v i is the vertical position pixel coordinate of the i-th light spot in the image. At the same time, the relative position coordinates Loc of these n light spots in the actual converter valve are determined according to the structural dimensions of the converter valve. phy_i (x i ,y i )(i=1,2,...,n),x i is the horizontal pixel coordinate of the ith light spot in the actual converter valve, y i is the vertical and horizontal position pixel coordinate of the ith light spot in the actual converter valve. The unit of the relative position coordinate may be an actual distance unit, such as millimeter.

[0098] The coordinate transformation matrix calculation step aims to find the transformation matrix from the position pixel coordinates to the horizontal position coordinates in the actual converter valve, which includes the following main steps:

[0099] (1) Write the coordinate transformation expression

[0100] Because the image acquisition device satisfies the linear transformation principle for imaging objects in space, as shown in the formula:

[0101]

[0102] in, is the pixel position coordinate of the water leakage spot in the laser water leakage display image, u is the horizontal pixel coordinate of the water leakage spot in the image, v is the vertical pixel coordinate of the water leakage spot in the image, is the transformed spatial horizontal position coordinate, x′, y′, z′ are intermediate transformation variables, x is the horizontal horizontal position pixel coordinate of the leakage spot in the actual converter valve, and y is the horizontal horizontal position pixel coordinate of the leakage spot in the actual converter valve. is the perspective transformation matrix from space to plane, its value depends on the spatial observation angle and satisfies:

[0103]

[0104] Let a 33 =1, expand the above formula to obtain the transformation process for a point:

[0105]

[0106] (2) Write down the linear equations for solving coordinate transformation

[0107] The pixel coordinates of the n light spots in the image confirmed in the above-mentioned converter valve space reference point link are Loc Dix_i (u i , v i )(i=1,2,...,n),u i is the horizontal pixel coordinate of the ith light spot in the image, v i is the vertical pixel coordinate of the i-th light spot in the image. And the relative position coordinate Loc in the actual converter valve phy_i (x i ,y i )(i=1,2,...,n),x i is the horizontal pixel coordinate of the ith light spot in the actual converter valve, y i is the vertical and horizontal position pixel coordinates of the ith light spot in the actual converter valve. Group the selected spatial reference points into groups of 4, take out the pixel coordinates and relative position coordinates corresponding to a group of 4 light spots, and write the linear equation group with reference to the above formula:

[0108]

[0109] The above system of linear equations can be converted into matrix format:

[0110]

[0111] Find the transformation matrix The formula for the elements is:

[0112]

[0113] Among them, A -1 Represents the inverse matrix of matrix A. According to the above formula, the value of each element in the coordinate transformation matrix can be obtained.

[0114] (3) Write a set of linear equations to solve the coordinate transformation based on other sets of spatial reference points

[0115] Based on the 4 spatial reference points in all other groups, the coordinate transformation linear equations are listed and solved respectively to obtain several transformation matrices.

[0116] The purpose of the invented horizontal relative coordinate calculation link is to calculate the relative coordinate value of the water leakage spot in the laser water leakage display image inside the converter valve in the actual physical space. It mainly includes the following steps:

[0117] (1) Obtain the relative coordinate calculation results of the converter valve corresponding to different transformation matrices for a single leaking light spot

[0118] Coordinates of a single leaking spot in the image The reference coordinate transformation matrix calculation step provides several transformation matrices, according to the formula Calculate the relative position coordinates of the converter valve after transformation

[0119] (2) Obtain the final result of the relative position coordinates of a single leaking light spot in the converter valve

[0120] The multiple relative position coordinate values ​​obtained according to the multiple transformation matrices are combined to obtain the final determined horizontal position coordinate center of the water leakage spot of the converter valve in the converter valve. Specifically, a method such as the average method, the median method, the weight method, the statistical method, etc. can be adopted. Optionally, the result obtained can include the probability density of the horizontal position coordinate distribution.

[0121] (3) Obtain the final result of the relative position coordinates of the leakage spot at different pixel positions in the laser leakage visualization image in the converter valve.

[0122] According to steps (1) and (2) in this link, for the water leakage spots at other pixel positions in the laser water leakage visualization image, the horizontal position coordinate centers of the water leakage spots in the converter valve are calculated respectively, and optionally, the horizontal position coordinate distribution probability density can be included. Finally, the horizontal position coordinate centers of all detected water leakage spots in the converter valve are obtained, and optionally, the horizontal position coordinate distribution probability density can be included.

[0123] Step S2: inferring the location where the water leakage fault of the converter valve occurs based on the horizontal relative coordinates of the water leakage point inside the converter valve.

[0124] Step S2 specifically includes:

[0125] The process of determining the valve layer where the suspected leaking faulty components and waterway connection points are located in this application refers to the process of further determining the valve layer where the suspected leaking faulty components and waterway connection points are located based on the layout of the converter valve leakage monitoring device and the leakage monitoring results of different leakage monitoring devices. Figure 3 As shown, it mainly includes the following steps:

[0126] (1) Obtain the structure of the converter valve and the layout of the leakage monitoring device

[0127] The main parameter to be determined when determining the structure of the converter valve is the number of layers of the converter valve. Determine whether corresponding water leakage monitoring devices are arranged under each layer of the converter valve.

[0128] (2) Obtaining the monitoring results of each water leakage monitoring device

[0129] The monitoring results of each water leakage monitoring device are obtained and determined, that is, each water leakage monitoring device is determined to determine whether there is a water leakage fault.

[0130] (3) Determine the valve layer where the suspected water leakage fault is located

[0131] When a leakage monitoring device detects a leakage fault, it is determined that the valve layers between this leakage monitoring device and the first leakage monitoring device above it that has not detected a leakage fault are all valve layers where the suspected leakage fault is located. If there is no leakage monitoring device above the leakage monitoring device that has detected a leakage fault that has not detected a leakage fault, it is determined that all valve layers of this converter valve are valve layers where the suspected leakage fault is located.

[0132] After inferring the location of the converter valve leakage fault based on the horizontal relative coordinates of the leakage point inside the converter valve, the present application further includes:

[0133] The location of suspected water leakage is displayed based on a high-fidelity 3D model.

[0134] A method for displaying suspected leaking components or waterway connection points of a converter valve based on a three-dimensional high-fidelity model of the converter valve aims to further infer the suspected leaking components or waterway connection points in the converter valve according to the inferred horizontal position of the laser leakage display spot in the converter valve space, and display them through a three-dimensional high-fidelity model while emitting sound and light and other alarm signals to help operation and maintenance personnel quickly determine the location of the leakage fault.

[0135] This application realizes the spatial positioning inference of the converter valve leakage fault by processing the laser leakage visualization image data of the converter valve, and intuitively displays the suspected leakage fault component or waterway connection point based on the high-fidelity three-dimensional model. Its main features include the valve layer identification of the suspected leakage fault component or waterway connection point, the horizontal projection of the converter valve component or waterway connection point, the projection area detection of the suspected leakage fault component and waterway connection point, and the display of the suspected leakage fault component and waterway connection point. It helps the converter station operation and maintenance personnel to quickly determine the location of the converter valve leakage fault and support the work of the converter station operation and maintenance personnel.

[0136] The calculation link of the horizontal projection of the converter valve components or water channel connection points is to project all the components and water channel connection points in the converter valve tower onto the horizontal plane, and determine the projection area of ​​each component or water channel connection point on the horizontal plane.

[0137] The projected area detection link of suspected leaking fault components or water connection points refers to the process of determining whether the corresponding components or water connection points may leak by calculating the horizontal position coordinate center of the leaking light spot detected in the horizontal positioning of the converter valve leaking fault and the projection area of ​​each component or water connection point in the valve layer where the suspected leaking fault occurs on the horizontal plane. That is, when there is an intersection, it is determined that the corresponding component or water connection point may leak, and the number of the suspected leaking component or water connection point is obtained.

[0138] Preferably, in the invented projection area or coordinate detection link of the suspected leaking fault component or water channel connection point, when the horizontal coordinate data of the leaking spot provided by the horizontal positioning of the converter valve leakage fault includes both the coordinate center and the coordinate distribution probability density function, the possibility of leakage in different components and water channel connection points can be determined according to the average value of the leakage coordinate distribution probability density function corresponding to the position of the component or water channel connection point, and the number of the suspected leaking component or water channel connection point can be obtained.

[0139] The invented suspected leaking faulty components or water channel connection point display link refers to the suspected leaking components or water channel connection point numbering data (preferably including the possibility data of leakage in different components and water channel connection points) obtained according to the valve layer identification link of the suspected leaking faulty components and water channel connection points, and uses graphical means to enable the corresponding suspected leaking components or water channel connection points to be highlighted in the high-fidelity three-dimensional model.

[0140] Embodiment 2:

[0141] A device for locating suspected leaking parts or waterway connection points of a converter valve, comprising:

[0142] The calculation unit is used to infer the horizontal relative coordinates of the leakage point inside the converter valve based on the laser leakage display image of the converter valve and the position coordinates of the leakage spot in the image by using the image coordinate perspective transformation method; and to infer the location where the converter valve leakage fault occurs based on the horizontal relative coordinates of the leakage point inside the converter valve.

[0143] Preferably, the computing unit comprises:

[0144] A change matrix determination subunit, used to determine the change matrix based on the position coordinates of a reference point in the converter valve space in the same plane as the water leakage spot in the converter valve perspective view and the relative position coordinates in the actual converter valve;

[0145] A horizontal coordinate determination subunit, used to determine the horizontal relative coordinates of the leakage point inside the converter valve based on the pixel coordinates of the leakage spot position in the image in combination with the change matrix;

[0146] The fault locating subunit is used to infer the location where the water leakage fault of the converter valve occurs based on the horizontal relative coordinates of the water leakage point inside the converter valve.

[0147] Preferably, the change matrix determination subunit is specifically used for:

[0148] The light spot naturally formed by the line laser irradiating the converter valve insulator is used as the transformation reference point, and the pixel coordinates of the positions of n reference points in the converter valve space in the same plane as the water leakage light spot in the converter valve perspective image are selected as the converter valve space reference points, n≥4; and the pixel coordinates of the light spot corresponding to the converter valve space reference point in the image are determined;

[0149] Determining the relative position coordinates of the light spot in the actual converter valve according to the structural dimensions of the converter valve;

[0150] The light spots corresponding to the spatial reference points of the converter valve are grouped according to a set number, and a change matrix is ​​determined based on the position pixel coordinates and relative position coordinates corresponding to each group of light spots.

[0151] Preferably, the horizontal coordinate determination subunit is specifically used for:

[0152] Based on the spatial reference points, the coordinate transformation linear equations corresponding to the pixel coordinates of the water leak spot position in the image are written out to obtain several transformation matrices;

[0153] Calculating a number of relative position coordinates inside the converter valve after transformation based on the number of change matrices;

[0154] Based on the said several relative position coordinates, a data processing method is used to obtain the relative position coordinates of the leaking light spot in the converter valve;

[0155] Among them, the data processing methods include: mean value method, median method, weight method and statistical method.

[0156] Preferably, it also includes a three-dimensional model display unit for displaying the location of the suspected water leakage fault based on the high-fidelity three-dimensional model.

[0157] Preferably, the three-dimensional model display unit is specifically used for:

[0158] Determine the location of the water leakage monitoring device based on the location of the suspected water leakage fault;

[0159] Determine the valve layer where the water leakage fault is located based on the location of the water leakage monitoring device and the structure of the converter valve;

[0160] Based on the horizontal relative coordinates of the leaking point inside the converter valve and the projection areas of each component or water connection point in the valve layer where the leaking fault is located on the horizontal plane, the number of the suspected leaking component or water connection point is determined;

[0161] Based on the numbering of the suspected leaking components or water channel connection points, graphics are used to display the suspected leaking components or water channel connection points in a high-fidelity three-dimensional model.

[0162] Preferably, the three-dimensional model display unit determines the number of the suspected leaking component or water channel connection point based on the horizontal relative coordinates of the leaking point inside the converter valve and the projection area of ​​each component or water channel connection point in the valve layer where the leaking fault is located on the horizontal plane, and the specific implementation steps include:

[0163] Determine whether the horizontal relative coordinates of the leakage point inside the converter valve intersect with the projection areas of the components or water channel connection points in the valve layer where the leakage fault is located on the horizontal plane;

[0164] If there is an intersection, the component or water connection point number corresponding to the intersection is the suspected leaking component or water connection point number, otherwise there is no suspected leaking component or water connection point number.

[0165] Preferably, it further comprises a communication unit;

[0166] The communication unit is used to communicate with one or more converter valve leakage monitoring devices based on the laser visualization principle to obtain laser leakage visualization images and laser leakage spot pixel position coordinates and other data. The invented communication unit can also communicate with other devices or systems to exchange data.

[0167] Preferably, it also includes a control unit;

[0168] The control unit is used to connect with other functional units and to coordinate and control the work of other functional units.

[0169] Preferably, it also includes a human-computer interaction unit;

[0170] The human-computer interaction unit is used to realize the interaction between the device and the management personnel or the converter station operators, and supports the personnel to view the device information and manage the device. At the same time, when a water leakage fault occurs, it can remind the converter station operators of the water leakage fault through various signals such as display screen, sound signal, light signal, etc., and intuitively locate and display the suspected leaking components or water connection points in the three-dimensional high-fidelity model through the screen.

[0171] The present application provides a device for locating suspected leaking components or waterway connection points of a converter valve, comprising: a calculation unit;

[0172] The calculation unit is used to complete all data calculation work in the method for locating the leakage fault point of the converter valve and displaying the suspected leakage component or water channel connection point of the above invention.

[0173] It also includes: one or more of a communication unit, a control unit, a three-dimensional model display unit, and a human-computer interaction unit.

[0174] The communication unit is used to communicate with one or more converter valve leakage monitoring devices based on the laser visualization principle to obtain laser leakage visualization images and laser leakage spot pixel position coordinates and other data. The invented communication unit can also communicate with other devices or systems to exchange data.

[0175] The control unit is used to connect other functional units and coordinate and control the work of other functional units.

[0176] The 3D model display unit can provide 3D high-fidelity model display services, with the functions of adding, modifying, deleting and displaying 3D high-fidelity models of different converter valves, and can support the use of graphics technology to highlight suspected leaking faulty components or water connection points.

[0177] The human-computer interaction unit is used to realize the interaction between the device and the management personnel or the converter station operators, and supports the personnel to view the device information and manage the device. At the same time, when a water leakage fault occurs, it can remind the converter station operators of the water leakage fault through various signals such as display screen, sound signal, light signal, etc., and intuitively locate and display the suspected leaking components or water connection points in the three-dimensional high-fidelity model through the screen.

[0178] Compared with the prior art, the present invention has the following beneficial effects:

[0179] (1) The prior art cannot locate the converter valve leakage fault to the component or water channel connection point, but can only locate the converter valve tower. The present invention can further narrow the scope of locating the converter valve leakage fault and can accurately locate the specific component or water channel connection point of a certain valve layer. Under the condition of providing multiple sets of conversion reference points, it can provide the quantitative possibility of leakage events at the converter valve components or water channel connection points, which is superior to the prior art in terms of function and performance.

[0180] (2) The existing technology does not have the ability to display suspected leaking components or water connection points in a three-dimensional model and can only display leakage events through messages. The present invention can intuitively highlight the specific locations of suspected leaking components or water connection points in the converter valve based on a three-dimensional high-fidelity model, which can greatly shorten the time for on-site operation and maintenance personnel to discover and locate the leakage fault of the converter valve.

[0181] Example 3

[0182] The embodiment of the present invention provides a device for locating suspected leaking parts or waterway connection points of a converter valve, such as Figure 5 shown. Figure 5 Only the external communication module is shown, and the internal communication module is represented by an arrow.

[0183] A device for locating suspected leaking parts or waterway connection points of a converter valve needs to be used in conjunction with a leakage monitoring device and system application based on the principle of line laser scanning leakage visualization. A line laser light source is used to scan the valve hall area to be monitored, and an image acquisition device is used to acquire an image of the area to be detected and detect and identify the pixel position coordinates of the characteristic light spot of the leakage in the image. This device uses the pixel position coordinates of the characteristic light spot of the leakage in the image output by the leakage monitoring device and system based on the principle of line laser scanning leakage visualization as input.

[0184] In the embodiment of the present invention, the method for locating the water leakage fault of the converter valve proposed by the present invention will be described in detail. Figure 6 As shown, it is a picture of the water leakage fault of the converter valve obtained from the water leakage monitoring system, which includes 4 positioning reference points and 1 water leakage fault light spot.

[0185] The pixel coordinates of the four positioning reference points in the image are p1(345,468), p2(327,778), p3(516,616), and p4(462,1234); the horizontal coordinates in the converter valve space are P1(259,1920), P2(259,3739), P3(1108,1920), and P4(1108,3739). The horizontal coordinate units in the converter valve space are millimeters. The pixel coordinates of the water leakage fault light spot in the image are p(372,766).

[0186] Referring to the method for obtaining the coordinate transformation matrix in this application, the coordinate transformation matrix is ​​solved as follows: According to the coordinate transformation matrix, the horizontal coordinates of the transformed leakage fault light spot in the converter valve space are further calculated as P(X,Y). but Then the horizontal coordinate of the leakage fault light spot in the converter valve space is P(X,Y)=P(622.4,3092.3), X is the horizontal lateral coordinate of the leakage fault light spot in the converter valve, in mm, Y is the horizontal longitudinal coordinate of the leakage fault light spot in the converter valve, in mm, and z is an intermediate variable.

[0187] In the specific implementation, by selecting more groups of reference points, multiple groups of different coordinate transformation matrices can be obtained. By statistically analyzing the probability distribution of the coordinate transformation results of the leakage fault light spot corresponding to different coordinate transformation matrices, the probability density function of the parameterized horizontal coordinate distribution of the leakage fault light spot can be further obtained.

[0188] In this embodiment, a two-dimensional normal distribution function with the mean and standard deviation of the coordinates in two dimensional directions as parameters is used as the probability density function of the horizontal coordinate distribution of the light spot of the water leakage fault.

[0189] In this embodiment, the layout of the water leakage monitoring device and the converter valve of the converter valve water leakage monitoring system is as follows: Figure 4 As shown, a corresponding converter valve water leakage monitoring device is arranged under each converter valve layer. The judgment condition of the suspected water leakage valve layer under this condition is a special case of the judgment condition of the suspected water leakage valve layer proposed in this application, that is, the first valve layer above all the water leakage monitoring devices that detect water leakage faults is the suspected water leakage valve layer, and the water leakage monitoring device above the highest valve layer can monitor the water leakage of the ceiling or top water pipe of the converter valve hall.

[0190] The present application also provides another embodiment, that is, the arrangement of the leakage monitoring device of the converter valve leakage monitoring system is that a set of leakage monitoring devices is arranged every two converter valve layers. Under this condition, if a leakage monitoring device detects a leakage fault, it is judged that all the converter valve layers from this leakage monitoring device to the first leakage monitoring device above it that has not detected a leakage fault are suspected leakage valve layers. In this embodiment, for an 8-layer converter valve, 5 leakage monitoring devices are arranged on the 1st layer, the 3rd layer, the 5th layer, below the 7th layer and above the 8th layer, and are numbered A, B, C, D, and E respectively. When A and C both detect a leakage fault, and B, D, and E do not detect a leakage fault, it is considered that the 1st, 2nd, 5th, and 6th valve layers are suspected leakage valve layers, and the 3rd, 4th, 7th, and 8th valve layers and the ceiling layer are normal valve layers.

[0191] In the embodiment provided in the present application, each component in the converter valve is projected onto a horizontal plane to form a projection area, such as Figure 6 As shown, all components and waterway connection points form corresponding projection areas in the horizontal plane. Figure 7 The horizontal position of the light spot of the water leakage fault calculated in the embodiment provided by the present invention is also marked.

[0192] In this embodiment, the converter valve component or water connection point that intersects the horizontal position of the detected water leakage fault light spot is the right-side saturated inductor 1# water branch pipe, then the right-side saturated inductor 1# water branch pipe in the 1, 2, 5, and 6 valve layers is marked as a suspected faulty component, and the water connection points on both sides of this component are marked as suspected faulty water connection points.

[0193] The embodiment provided in the present application uses a high-fidelity model constructed by integrating parametric modeling and laser point cloud scanning to achieve an intuitive display of leaking faulty components or water channel connection points, and uses transparent red combined with a breathing red external contour to highlight the leaking faulty components or water channel connection points in the three-dimensional high-fidelity model.

[0194] The embodiment provided in this application uses a multi-modal network integrating WIFI, 5G, and twisted pair to access the converter station and communicate with other external device systems such as the water leakage monitoring system based on laser scanning and image recognition.

[0195] The embodiment provided in the present application uses a microprocessor-based computer device as a computing unit and a control unit, and adopts a three-dimensional graphics unit as a high-fidelity three-dimensional model display unit.

[0196] The embodiment provided in the present application uses an electronic screen, a mouse, a keyboard, a speaker, a microphone and supporting software to realize human-computer interaction with operation and maintenance personnel, display the leakage status of the converter valve, and receive instructions from the operation and maintenance personnel to perform corresponding operations.

[0197] The embodiments of the present application also provide storage media such as CDs and USB flash drives, which contain programs that can implement the methods proposed in the present invention and can be distributed and spread to facilitate engineering application implementation.

[0198] Example 4

[0199] like Figure 8 As shown, the present invention also provides an electronic device, which may be a computer device, a single-chip device, an intelligent mobile device, etc. The electronic device in this embodiment may include a processor, a memory, a transceiver component, etc. The memory, the processor, and the transceiver component are connected via a bus; the memory may be used to store an execution program, and an exemplary execution program may include instructions; the processor is used to execute the instructions stored in the memory. The memory may also be used to store data, which may be called and / or modified when the instructions are executed.

[0200] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, which is suitable for implementing one or more instructions, and is specifically suitable for loading and executing one or more instructions in a storage medium to implement a corresponding method flow or a corresponding function, so as to implement the steps of a method for locating a suspected leaking component or a water connection point of a converter valve in the above-mentioned embodiment.

[0201] Example 4

[0202] Based on the same inventive concept, the present invention also provides a readable storage medium, specifically an electronic device readable storage medium (Memory), which is a memory device in an electronic device for storing programs and data. It can be understood that the storage medium here can include both built-in storage media in the electronic device and, of course, extended storage media supported by the electronic device. The storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space, and these instructions can be one or more execution programs (including program codes). It should be noted that the storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor loads and executes one or more instructions stored in the storage medium, which can implement the steps of a method for locating a suspected leaking component or a waterway connection point of a converter valve in the above embodiment.

[0203] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0204] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0205] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0206] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0207] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A method for locating suspected leaking parts or water connection points of a converter valve, characterized in that: include: According to the laser leakage visualization image of the converter valve and the coordinates of the leakage spot position in the image, the spot naturally formed by the line laser irradiating the converter valve insulator is used as the transformation reference point, and the horizontal relative coordinates of the leakage point inside the converter valve are inferred by the perspective transformation of the image coordinates. Inferring the location where the water leakage fault of the converter valve occurs based on the horizontal relative coordinates of the water leakage point inside the converter valve; Wherein, the location where the water leakage failure of the converter valve occurs includes: internal components of the valve layer or water channel connection points.

2. The method according to claim 1, characterized in that The method of inferring the horizontal relative coordinates of the leakage point inside the converter valve by using the perspective transformation of the image coordinates according to the laser leakage display image of the converter valve and the position coordinates of the leakage spot in the image includes: Determine a change matrix based on the position coordinates of a reference point in the converter valve space in the same plane as the water leakage spot in the converter valve perspective view and the relative position coordinates in the actual converter valve; The horizontal relative coordinates of the leakage point inside the converter valve are determined based on the pixel coordinates of the leakage spot position in the image in combination with the change matrix.

3. The method according to claim 2, characterized in that The method of determining the change matrix based on the position coordinates of the reference point in the converter valve space in the same plane as the water leakage spot in the converter valve perspective view and the relative position coordinates in the actual converter valve comprises: The light spot naturally formed by the line laser irradiating the converter valve insulator is used as the transformation reference point, and the pixel coordinates of the positions of n reference points in the converter valve space in the same plane as the water leakage light spot in the converter valve perspective image are selected as the converter valve space reference points, n≥4; and the pixel coordinates of the light spot corresponding to the converter valve space reference point in the image are determined; Determining the relative position coordinates of the light spot in the actual converter valve according to the structural dimensions of the converter valve; The light spots corresponding to the spatial reference points of the converter valve are grouped according to a set number, and a change matrix is ​​determined based on the position pixel coordinates and relative position coordinates corresponding to each group of light spots.

4. The method according to claim 3, characterized in that The determining the horizontal relative coordinates of the leakage point inside the converter valve based on the pixel coordinates of the leakage spot position in the image in combination with the change matrix includes: Based on the spatial reference points, the coordinate transformation linear equations corresponding to the pixel coordinates of the water leak spot position in the image are written out to obtain several transformation matrices; Calculating a number of relative position coordinates inside the converter valve after transformation based on the number of change matrices; Based on the said several relative position coordinates, a data processing method is used to obtain the relative position coordinates of the leaking light spot in the converter valve; Among them, the data processing methods include: mean value method, median method, weight method and statistical method.

5. The method according to claim 1, characterized in that After inferring the location where the water leakage fault of the converter valve occurs based on the horizontal relative coordinates of the water leakage point inside the converter valve, the method further includes: The location of suspected water leakage is displayed based on a high-fidelity 3D model.

6. The method according to claim 5, characterized in that The high-fidelity three-dimensional model is used to display the location of the suspected water leakage fault, including: Determine the location of the water leakage monitoring device based on the location of the suspected water leakage fault; Determine the valve layer where the water leakage fault is located based on the location of the water leakage monitoring device and the structure of the converter valve; Based on the horizontal relative coordinates of the leaking point inside the converter valve and the projection areas of each component or water connection point in the valve layer where the leaking fault is located on the horizontal plane, the number of the suspected leaking component or water connection point is determined; Based on the numbering of the suspected leaking components or water channel connection points, graphics are used to display the suspected leaking components or water channel connection points in a high-fidelity three-dimensional model.

7. The method according to claim 6, characterized in that The method of determining the number of the suspected leaking component or water channel connection point based on the horizontal relative coordinates of the leaking point inside the converter valve and the projection area of ​​each component or water channel connection point in the valve layer where the leaking fault is located on the horizontal plane comprises: Determine whether the horizontal relative coordinates of the leakage point inside the converter valve intersect with the projection areas of the components or water channel connection points in the valve layer where the leakage fault is located on the horizontal plane; If there is an intersection, the component or water connection point number corresponding to the intersection is the suspected leaking component or water connection point number, otherwise there is no suspected leaking component or water connection point number.

8. A device for locating suspected leaking parts or waterway connection points of a converter valve, characterized in that: include: The calculation unit is used to infer the horizontal relative coordinates of the leakage point inside the converter valve based on the laser leakage display image of the converter valve and the position coordinates of the leakage spot in the image by using the image coordinate perspective transformation method; and to infer the location where the converter valve leakage fault occurs based on the horizontal relative coordinates of the leakage point inside the converter valve.

9. The device according to claim 8, characterized in that The computing unit comprises: A change matrix determination subunit, used to determine the change matrix based on the position coordinates of a reference point in the converter valve space in the same plane as the water leakage spot in the converter valve perspective view and the relative position coordinates in the actual converter valve; A horizontal coordinate determination subunit, used to determine the horizontal relative coordinates of the leakage point inside the converter valve based on the pixel coordinates of the leakage spot position in the image in combination with the change matrix; The fault locating subunit is used to infer the location where the water leakage fault of the converter valve occurs based on the horizontal relative coordinates of the water leakage point inside the converter valve.

10. The device according to claim 9, characterized in that The change matrix determination subunit is specifically used for: The light spot naturally formed by the line laser irradiating the converter valve insulator is used as the transformation reference point, and the pixel coordinates of the positions of n reference points in the converter valve space in the same plane as the water leakage light spot in the converter valve perspective image are selected as the converter valve space reference points, n≥4; and the pixel coordinates of the light spot corresponding to the converter valve space reference point in the image are determined; Determining the relative position coordinates of the light spot in the actual converter valve according to the structural dimensions of the converter valve; The light spots corresponding to the spatial reference points of the converter valve are grouped according to a set number, and a change matrix is ​​determined based on the position pixel coordinates and relative position coordinates corresponding to each group of light spots.

11. An electronic device, characterized in that: include: at least one processor and memory; The memory and the processor are connected via a bus; The memory is used to store one or more programs; When the one or more programs are executed by the at least one processor, a method for locating a suspected leaking component or a waterway connection point of a converter valve as described in any one of claims 1 to 7 is implemented.

12. A readable storage medium, characterized in that: An execution program is stored thereon, and when the execution program is executed, a method for locating a suspected leaking component or a water channel connection point of a converter valve as described in any one of claims 1 to 7 is implemented.

Images