A method, device, equipment and medium for calibrating a circuit breaker hydraulic mechanism

Abstract

The present invention discloses a circuit breaker hydraulic mechanism calibration method, device, equipment, and medium. The method includes responding to a circuit breaker calibration request, obtaining two images to be analyzed from adjacent frames of each contactor monitoring video, performing state analysis on each image to be analyzed using a preset state analysis model, generating state information, and determining whether the two pieces of state information match. If the two pieces of state information do not match, obtaining a pressure gauge image to be analyzed, performing pressure value analysis on the pressure gauge analysis image using a preset pressure gauge analysis model, calculating the pressure value corresponding to the pressure gauge image to be analyzed, and determining whether the quantity of the pressure value is equal to a preset quantity threshold. If the pressure value is equal to the quantity threshold, performing a fault analysis operation based on the multiple pressure values ​​to generate a fault analysis result for the circuit breaker hydraulic mechanism. The method solves the technical problem that manual verification cannot accurately verify the pressure signal of the circuit breaker hydraulic mechanism, thereby reducing the reliability of substation operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field, and in particular to a circuit breaker hydraulic mechanism verification method, device, equipment and medium. BACKGROUND

[0002] The substation operation and maintenance personnel need to regularly check the anti-refusal of the circuit breaker in the station, among which checking the circuit breaker hydraulic mechanism pressure signal is an important item of the circuit breaker anti-refusal check, that is, checking whether the contactor can reliably and correctly act, and at the same time judging whether the pressure values of the circuit breaker reclosing (resetting), closing (resetting), and opening (resetting) meet the standard values, so as to ensure the reliability of the substation operation, therefore, checking the circuit breaker hydraulic mechanism pressure signal is crucial in the circuit breaker anti-refusal check work.

[0003] At present, the circuit breaker hydraulic mechanism pressure signal is mainly checked by manual checking, but the manual checking method has the problems of low work efficiency, poor man-machine efficiency, and data deviation, and cannot accurately check the circuit breaker hydraulic mechanism pressure signal, which reduces the reliability of the substation operation. SUMMARY

[0004] The present application provides a circuit breaker hydraulic mechanism verification method, device, equipment and medium, which solves the technical problem that the existing manual checking method has low work efficiency, poor man-machine efficiency, and data deviation, and cannot accurately check the circuit breaker hydraulic mechanism pressure signal, which reduces the reliability of the substation operation.

[0005] The first aspect of the present application provides a circuit breaker hydraulic mechanism verification method, comprising:

[0006] In response to a circuit breaker verification request, two to-be-analyzed images of adjacent frames of each contactor monitoring video are obtained;

[0007] Each of the to-be-analyzed images is analyzed by a preset state analysis model to determine the state information corresponding to the to-be-analyzed image;

[0008] It is judged whether the two state information matches;

[0009] If the two state information does not match, a pressure table to-be-analyzed image is obtained;

[0010] The pressure table to-be-analyzed image is analyzed by a preset pressure table analysis model to determine the pressure value corresponding to the pressure table to-be-analyzed image;

[0011] It is judged whether the number value of the pressure value is equal to a preset number threshold;

[0012] If the quantity value is equal to the quantity threshold value, a fault analysis operation is performed according to the plurality of pressure values, and a fault analysis result of the hydraulic mechanism of the circuit breaker is generated.

[0013] Optionally, the state analysis model is used to analyze each of the to-be-analyzed images to determine state information corresponding to the to-be-analyzed images.

[0014] Each of the to-be-analyzed images is subjected to feature extraction by using a preset state analysis model to generate a target image; the state analysis model is used to analyze a to-be-analyzed image and output a corresponding target image.

[0015] A proportion value between the target image and a preset standard contour image is calculated.

[0016] It is determined whether the proportion value is greater than or equal to a preset state threshold value.

[0017] If the proportion value is greater than or equal to the state threshold value, it is determined that the state information corresponding to the to-be-analyzed image is a first state value.

[0018] If the proportion value is less than the state threshold value, it is determined that the state information corresponding to the to-be-analyzed image is a second state value.

[0019] Optionally, the pressure table analysis image is input into a preset pressure table analysis model to generate a scale start point coordinate, a scale width, a pointer center coordinate, and a range value corresponding to the pressure table to-be-analyzed image; the pressure table analysis model is used to analyze a pressure table analysis image and output a corresponding scale start point coordinate, scale width, pointer center coordinate, and range value.

[0020] Optionally, the pressure table analysis image is input into a preset pressure table analysis model to generate a scale start point coordinate, a scale width, a pointer center coordinate, and a range value corresponding to the pressure table to-be-analyzed image; the pressure table analysis model is used to analyze a pressure table analysis image and output a corresponding scale start point coordinate, scale width, pointer center coordinate, and range value.

[0021] A pressure value analysis function is constructed according to the scale start point coordinate, the scale width, the pointer center coordinate, and the range value to generate a pressure value corresponding to the pressure table to-be-analyzed image.

[0022] Optionally, the pressure value analysis function is P=(X P -X0)*S / W.

[0023] P is a pressure value, X P is a pointer center coordinate, X0 is a scale start point coordinate, and S is a range value.

[0024] Optionally, the step of performing a fault analysis operation according to the plurality of pressure values ​​to generate a fault analysis result of the circuit breaker hydraulic mechanism includes:

[0025] Generate a corresponding composite key according to the contactor and state information corresponding to each pressure value;

[0026] Input the composite key into a preset standard interval key-value pair list to match the standard interval corresponding to the pressure value;

[0027] A fault analysis result of the circuit breaker hydraulic mechanism is generated according to the comparison result of each pressure value with the standard interval.

[0028] Optionally, the step of generating a fault analysis result of the circuit breaker hydraulic mechanism according to the comparison result of each of the pressure values ​​with the standard interval includes:

[0029] Determining whether each of the pressure values ​​is within the standard range;

[0030] If any of the pressure values ​​is not within the standard range, determining that a fault analysis result of the circuit breaker hydraulic mechanism is a fault;

[0031] If all the pressure values ​​are within the standard range, the pressure values ​​are sorted according to their magnitude to generate a first sequence;

[0032] Determining whether the first sequence matches a preset standard sequence;

[0033] If the first sequence matches the standard sequence, determining that the fault analysis result is normal;

[0034] If the first sequence does not match the standard sequence, the fault analysis result is determined to be a fault.

[0035] Optionally, before the step of performing pressure value analysis on the pressure gauge image to be analyzed using a preset pressure gauge analytical model to determine the pressure value corresponding to the pressure gauge image to be analyzed, the method further includes:

[0036] Calculating the time interval between obtaining the last frame of the image to be analyzed of each contactor and the image to be analyzed of the pressure gauge;

[0037] Determining whether the time interval is greater than or equal to a preset delay warning value;

[0038] If the time interval is greater than or equal to the delay warning value, the process jumps to the step of obtaining two images to be analyzed of adjacent frames of each contactor monitoring video until the time interval is less than the preset warning value.

[0039] The second aspect of the present application provides a calibrating device of a circuit breaker hydraulic mechanism, comprising:

[0040] An image to be analyzed acquisition module is configured to acquire two images to be analyzed of adjacent frames of a contactor monitoring video in response to a circuit breaker calibration request;

[0041] A state information acquisition module is configured to determine state information corresponding to each of the images to be analyzed by performing state analysis on each of the images to be analyzed through a preset state analysis model;

[0042] A matching analysis module is configured to determine whether two of the state information match;

[0043] If the two of the state information do not match, a pressure gauge image to be analyzed is acquired;

[0044] A pressure value of the pressure gauge image to be analyzed is determined by performing pressure value analysis on the pressure gauge image to be analyzed through a preset pressure gauge analysis model;

[0045] A judgment analysis module is configured to determine whether a quantity value of the pressure value is equal to a preset quantity threshold value;

[0046] If the quantity value is equal to the quantity threshold value, a fault analysis operation is performed according to a plurality of the pressure values to generate a fault analysis result of the circuit breaker hydraulic mechanism.

[0047] The third aspect of the present application provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the computer program is executed by the processor to make the processor execute the steps of the calibrating method of the circuit breaker hydraulic mechanism according to any one of the above aspects.

[0048] The fourth aspect of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is executed to implement the calibrating method of the circuit breaker hydraulic mechanism according to any one of the above aspects.

[0049] As can be seen from the above technical solutions, the present application has the following advantages:

[0050] In response to a circuit breaker verification request, two images to be analyzed from adjacent frames of each contactor monitoring video are obtained. A state analysis is performed on each image to determine the state information corresponding to the image to be analyzed using a preset state analysis model. A match is determined between the two state information. If the two state information do not match, a pressure gauge image to be analyzed is obtained. Pressure value analysis is performed on the pressure gauge analysis image using a preset pressure gauge parsing model to calculate the pressure value corresponding to the pressure gauge image to be analyzed. A determination is made as to whether the number of pressure values ​​equals a preset threshold. If the pressure value equals the threshold, a fault analysis operation is performed based on the multiple pressure values ​​to generate a fault analysis result for the circuit breaker hydraulic mechanism. This solves the technical problem of low efficiency, poor human-machine efficiency, and data deviation in existing manual verification methods, which prevents accurate verification of circuit breaker hydraulic mechanism pressure signals and reduces substation operational reliability. By using a preset state analysis model and a pressure gauge parsing model to analyze and process the image to be analyzed and the pressure gauge image to be analyzed, deviations in pressure value readings are reduced, while work efficiency is improved, thereby enhancing substation operational reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0052] Figure 1 A flowchart of the steps of a calibration method for a circuit breaker hydraulic mechanism provided in the first embodiment of the present invention;

[0053] Figure 2 A flowchart of a method for calibrating a hydraulic mechanism of a circuit breaker provided in a second embodiment of the present invention;

[0054] Figure 3 This is a structural block diagram of a calibration device for a circuit breaker hydraulic mechanism provided in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0055] Embodiments of the present invention provide a method, device, equipment, and medium for calibrating a circuit breaker hydraulic mechanism, which are used to address the problems of low work efficiency, poor human-machine efficiency, and data deviation in the existing manual verification method, and the inability to accurately verify the pressure signal of the circuit breaker hydraulic mechanism, thereby reducing the reliability of substation operation.

[0056] In order to make the application purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0057] Please refer to Figure 1 , Figure 1 A step flow chart of a verification method of a circuit breaker hydraulic mechanism is provided for the first embodiment of the present application.

[0058] The verification method of the circuit breaker hydraulic mechanism provided by the present application comprises the following steps:

[0059] Step 101, in response to a circuit breaker verification request, two to-be-analyzed images of adjacent frames of a contactor monitoring video of each contactor are obtained.

[0060] The circuit breaker verification request refers to a verification instruction issued by a technician to verify whether the circuit breaker hydraulic mechanism has failed.

[0061] The to-be-analyzed image refers to the contactor image of the adjacent frame in the current time period.

[0062] In the embodiment of the present application, in response to the circuit breaker verification request, two to-be-analyzed images of adjacent frames of a contactor monitoring video of each contactor in the current time period are obtained.

[0063] It should be noted that the contactor monitoring video mainly includes low-oil-pressure locking reclosing contactor monitoring video, low-oil-pressure locking closing contactor monitoring video and low-oil-pressure locking opening contactor monitoring video.

[0064] Step 102, state analysis is performed on each to-be-analyzed image through a preset state analysis model to determine state information corresponding to the to-be-analyzed image.

[0065] The state information refers to whether the contactor of the to-be-analyzed image is open or closed.

[0066] In the embodiment of the present application, the open and closed state information of the contactor corresponding to the to-be-analyzed image is generated by performing state analysis on each to-be-analyzed image through a preset state analysis model.

[0067] It should be noted that when the state analysis model performs state analysis on each to-be-analyzed image, the to-be-analyzed image needs to be processed by a binarization operation, and then the state analysis model performs state analysis on each to-be-analyzed image.

[0068] Step 103, whether the two state information matches is judged.

[0069] In the embodiment of the present invention, it is determined whether two pieces of status information are consistent.

[0070] Step 104: If the two pieces of status information do not match, obtain the pressure gauge image to be analyzed.

[0071] The pressure gauge image to be analyzed refers to the pressure gauge image collected by the collection device when the contactor is actuated.

[0072] In the embodiment of the present invention, if the state information corresponding to two adjacent frames of the image to be analyzed does not match, it means that the contactor is actuated, and the image to be analyzed of the pressure gauge is obtained.

[0073] In another embodiment, when the status information corresponding to two adjacent frames of images to be analyzed do not match, it is considered that the contactor status has changed, and the main control unit immediately sends a meter reading command to the client, and the acquisition unit acquires the pressure gauge image to be analyzed on the pressure gauge.

[0074] It should be noted that if the two pieces of status information match, the process jumps to the step of obtaining two images to be analyzed in adjacent frames of each contactor monitoring video.

[0075] Step 105 : Perform pressure value analysis on the pressure gauge image to be analyzed using a preset pressure gauge analytical model to determine the pressure value corresponding to the pressure gauge image to be analyzed.

[0076] In an embodiment of the present invention, the pressure gauge image to be analyzed is analyzed using a preset pressure gauge analysis model to obtain pressure gauge parameters corresponding to the pressure gauge image to be analyzed, thereby calculating the pressure value corresponding to the pressure gauge image to be analyzed.

[0077] It should be noted that the pressure gauge analysis model is used to input the pressure gauge image to be analyzed into the pressure gauge analysis model for analysis, and output the corresponding pressure gauge parameters such as the scale starting point coordinates, scale width, pointer center coordinates and range value.

[0078] Step 106: Determine whether the quantity of the pressure values ​​is equal to a preset quantity threshold.

[0079] The quantity threshold refers to the number of pressure values ​​required to be collected when checking the pressure signal of the circuit breaker hydraulic mechanism for the three contactors: low oil pressure lockout reclosing, low oil pressure lockout closing, and low oil pressure lockout opening.

[0080] In the embodiment of the present invention, it is determined whether the number of pressure values ​​is equal to 6.

[0081] Step 107: If the pressure value is equal to the quantity threshold, a fault analysis operation is performed according to the multiple pressure values ​​to generate a fault analysis result of the circuit breaker hydraulic mechanism.

[0082] In an embodiment of the present invention, when the pressure value is equal to the quantity threshold, a fault analysis operation is performed on the multiple pressure values ​​in combination with the corresponding standard pressure threshold to generate a fault analysis result of the hydraulic mechanism of the crowbar.

[0083] It should be noted that, if the pressure value is not equal to the quantity threshold, the process jumps to the step of obtaining two images to be analyzed in adjacent frames of each contactor monitoring video.

[0084] In an embodiment of the present invention, in response to a circuit breaker verification request, two images to be analyzed are obtained from adjacent frames of each contactor monitoring video. A state analysis is performed on each image to be analyzed using a preset state analysis model to determine the state information corresponding to the image to be analyzed. A determination is made as to whether the two pieces of state information match. If the two pieces of state information do not match, a pressure gauge image to be analyzed is obtained. Pressure value analysis is performed on the pressure gauge analysis image using a preset pressure gauge analysis model to calculate the pressure value corresponding to the pressure gauge image to be analyzed. A determination is made as to whether the number of pressure values ​​equals a preset threshold. If the pressure value equals the threshold, a fault analysis operation is performed based on the multiple pressure values ​​to generate a fault analysis result for the circuit breaker hydraulic mechanism. This solves the technical problem of low efficiency, poor human-machine efficiency, and data deviation in existing manual verification methods, which prevents accurate verification of pressure signals from the circuit breaker hydraulic mechanism and reduces the reliability of substation operation. By using a preset state analysis model and a pressure gauge analysis model to analyze and process the image to be analyzed and the pressure gauge image to be analyzed, deviations in pressure value readings are reduced, while work efficiency is improved, thereby enhancing substation reliability.

[0085] See also Figure 2 , Figure 2 This is a flowchart of the steps of a calibration method for a circuit breaker hydraulic mechanism provided in the second embodiment of the present invention.

[0086] The present invention provides a method for calibrating a hydraulic mechanism of a circuit breaker, comprising the following steps:

[0087] Step 201: In response to a circuit breaker verification request, two images to be analyzed of adjacent frames of each contactor monitoring video are obtained.

[0088] In an embodiment of the present invention, when a circuit breaker verification request is received from a terminal device, a camera installed on the circuit breaker collects two images to be analyzed of adjacent frames of each contactor monitoring video.

[0089] Step 202: Perform state analysis on each image to be analyzed using a preset state analysis model to determine state information corresponding to the image to be analyzed.

[0090] Furthermore, step 202 includes the following sub-steps:

[0091] S11, extracting features from each image to be analyzed using a preset state analysis model to generate a target image; wherein the state analysis model is used to analyze the image to be analyzed and output a corresponding target image;

[0092] The target image refers to the sub-contour image inside the effective detection area contour in the contactor image.

[0093] In an embodiment of the present invention, a preset state analysis model is used to extract features from each image to be analyzed to generate a sub-contour image, wherein the state analysis model is used to analyze the image to be analyzed and output a corresponding sub-contour image.

[0094] S12, calculating the ratio between the target image and the preset standard contour image;

[0095] The standard contour image refers to the contour image of the effective detection area in the contactor image.

[0096] In the embodiment of the present invention, a ratio between the sub-contour image and the effective detection area contour image is calculated.

[0097] It should be noted that the sub-contour image is a feature image extracted from the contour image of the effective detection area.

[0098] S13, determining whether the proportion value is greater than or equal to a preset state threshold;

[0099] The state threshold refers to the critical value of the contactor state change, which is generally 0.15.

[0100] In the embodiment of the present invention, it is determined whether the proportion is greater than or equal to 0.15.

[0101] S14: If the proportion is greater than or equal to the state threshold, determining that the state information corresponding to the image to be analyzed is a first state value;

[0102] The first state value refers to the action value when the contactor is disconnected, which is generally 1.

[0103] In the embodiment of the present invention, when the ratio is greater than or equal to 0.15, it is determined that the status information corresponding to the image to be analyzed is disconnected.

[0104] S15: If the proportion value is less than the state threshold, determine that the state information corresponding to the image to be analyzed is a second state value.

[0105] The second state value refers to the action value when the contactor is closed and is generally 0.

[0106] In the embodiment of the present invention, when the ratio is less than 0.15, it is determined that the state information corresponding to the image to be analyzed is closed.

[0107] Step 203, judging whether the two state information matches.

[0108] In the embodiment of the present application, it is judged whether the state information corresponding to the adjacent two frames of to-be-analyzed images is consistent.

[0109] Step 204, if the two state information does not match, obtaining the pressure table to-be-analyzed image.

[0110] In the embodiment of the present application, if the state information corresponding to the adjacent two frames of to-be-analyzed images is inconsistent, the pressure table to-be-analyzed image is obtained.

[0111] Step 205, performing pressure value analysis on the pressure table to-be-analyzed image by a preset pressure table analysis model, and determining the pressure value corresponding to the pressure table to-be-analyzed image.

[0112] It is worth mentioning that the following substep is further included before step 205:

[0113] S21, calculating the time interval between the to-be-analyzed image of the last frame of each contactor and the pressure table to-be-analyzed image.

[0114] In the embodiment of the present application, the difference between the time of obtaining the to-be-analyzed image of the last frame of each contactor and the time of obtaining the pressure table to-be-analyzed image is calculated.

[0115] It should be noted that when the contactor state switches, a pulse is sent to the pressure table value reading component, and the time t1 when the contactor switching state is recorded, when the pressure table value reading component receives the pulse, the pressure table is photographed, and the time t2 when the photograph is taken is recorded.

[0116] S22, judging whether the time interval is greater than or equal to a preset delay warning value.

[0117] The delay warning value refers to the delay critical value of network communication time.

[0118] In the embodiment of the present application, it is judged whether the time interval is greater than or equal to the delay critical value of network communication time.

[0119] S23, if the time interval is greater than or equal to the delay warning value, jumping to the step of obtaining the two to-be-analyzed images of adjacent frames of each contactor monitoring video, until the time interval is less than the preset warning value.

[0120] In the embodiment of the present application, when the time interval is greater than or equal to the delay critical value, it indicates that the network delay reading is inaccurate, and the step of obtaining the two to-be-analyzed images of adjacent frames of each contactor monitoring video is jumped to reacquire the pressure value, until the time interval is less than the delay critical value.

[0121] In another embodiment of the present invention, when the time interval is greater than or equal to the delay threshold, a prompt is given that the current pressure value reading is inaccurate, and the pressure value associated with the next contactor is obtained.

[0122] It should be noted that when the current pressure value reading is prompted to be inaccurate, the current pressure value is not used as the pressure value associated with the contactor.

[0123] Furthermore, step 205 includes the following sub-steps:

[0124] S31. Input the pressure gauge analysis image into a preset pressure gauge analysis model to generate the scale starting point coordinates, scale width, pointer center coordinates and range value corresponding to the pressure gauge image to be analyzed; wherein the pressure gauge analysis model is used to analyze the pressure gauge analysis image and output the corresponding scale starting point coordinates, scale width, pointer center coordinates and range value.

[0125] In an embodiment of the present invention, the binarized pressure gauge analysis image is input into a preset pressure gauge analysis model to generate the scale starting point coordinates, scale width, pointer center coordinates and range value corresponding to the pressure gauge image to be analyzed, wherein the pressure gauge analysis model is used to analyze the pressure gauge analysis image, find all contours within the pressure gauge analysis image, and determine the width of each contour, thereby outputting corresponding scale starting point coordinates, scale width, pointer center coordinates and range value and other information.

[0126] It should be noted that the pressure gauge analytical model identifies the pointer center coordinates by performing polygon matching on the contour to find the pointer area (when the match is successful, it should be a quadrilateral with 4 vertices and an area greater than the specified value, such as more than 150 pixels), finds the shortest side through the distance between the 4 vertices, and takes the center of the short side to obtain the center line position of the pointer area, i.e. the pointer center coordinates.

[0127] It should be noted that the pressure value analysis function is specifically: P = (X P -X0)*S / W;

[0128] Among them, P is the pressure value, X P is the coordinate of the center of the pointer, X0 is the coordinate of the scale starting point, S is the range value, and W is the scale width.

[0129] S32. Construct a pressure value analysis function according to the coordinates of the scale starting point, the scale width, the coordinates of the pointer center, and the range value, and generate a pressure value corresponding to the pressure gauge image to be analyzed.

[0130] In an embodiment of the present invention, a pressure value analysis function is constructed by using the coordinates of the scale starting point, the scale width, the coordinates of the pointer center, and the range value to calculate the pressure value corresponding to the image to be analyzed of the pressure gauge.

[0131] Step 206: Determine whether the quantity of the pressure values ​​is equal to a preset quantity threshold.

[0132] In the embodiment of the present invention, it is determined whether the number of pressure values ​​is equal to 6.

[0133] Step 207: If the quantity value is equal to the quantity threshold, then generate a corresponding composite key according to the contactor and state information corresponding to each pressure value;

[0134] A composite key refers to a key composed of event feature data input into a preset quasi-interval key-value pair list, wherein the event feature data includes a key composed of contactor type and status information for constructing a composite filtering condition.

[0135] In the embodiment of the present invention, if the quantity value is equal to 6, a corresponding composite key is generated according to the contactor and state information corresponding to each pressure value.

[0136] Step 208: Input the composite key into the preset standard interval key-value pair list to match the standard interval corresponding to the pressure value;

[0137] The standard range refers to the standard pressure value range of each contactor under the current status information.

[0138] In an embodiment of the present invention, the composite key is input into a preset standard interval key-value pair list to match the standard pressure value interval corresponding to the pressure value.

[0139] Step 209: Generate a fault analysis result of the circuit breaker hydraulic mechanism based on the comparison results of each pressure value with the standard range.

[0140] Furthermore, step 209 includes the following sub-steps:

[0141] S41. Determine whether each pressure value is within a standard range.

[0142] In the embodiment of the present invention, it is determined whether each pressure value is outside the standard pressure value range.

[0143] S42. If any pressure value is not within the standard range, it is determined that the fault analysis result of the circuit breaker hydraulic mechanism is a fault.

[0144] In the embodiment of the present invention, when any pressure value is not within the standard pressure value interval, it is determined that the fault analysis result of the circuit breaker pressure mechanism is a fault.

[0145] It should be noted that when the fault analysis result of the circuit breaker hydraulic mechanism is a fault, the specific problem of the fault can be determined based on the pressure value that is not within the standard pressure value range. For example, 1. If the reclosing lockout pressure value F1 (F1 is the pressure value when the low oil pressure lockout reclosing contactor switches from the reset state to the energized state) is too small, its value is within the standard range of the closing lockout pressure value and the reclosing reset pressure value F6 (F6 is the pressure value when the low oil pressure lockout reclosing contactor switches from the energized state to the reset state) has no reading, it means that the low oil pressure lockout reclosing contactor has not operated, indicating that the 63QR oil pressure switch is faulty or the low oil pressure lockout reclosing contactor is faulty. 2. If any of the values ​​of the reclosing lockout pressure value F1 and the reclosing reset pressure value F6 are not within the corresponding standard value range, it indicates that the pressure gauge pointer is stuck between the reclosing lockout pressure value F1 and the rated pressure value. If the reclosing lockout pressure value F1 and the reclosing reset pressure value F6 are both outside the corresponding standard value range, it indicates that the 63QR oil pressure switch adjustment nut has been displaced. Please check whether the marking mark on the 63QR oil pressure switch nut has been displaced. 3. If the closing lockout pressure value F2 (F2 is the pressure value when the low oil pressure lockout closing contactor switches from the reset state to the energized state) is too small, its value is within the standard range of the opening lockout pressure value, and its closing reset pressure value F5 (F5 is the pressure value when the low oil pressure lockout closing contactor switches from the energized state to the reset state) is within the standard value range of the reclosing reset pressure value F6. This indicates that the low oil pressure lockout closing contactor has not been actuated, indicating that the 63QC oil pressure switch or the low oil pressure lockout closing contactor is faulty. 4. If either the closing lockout pressure value F2 or the closing reset pressure value F5 is outside the corresponding standard range, the pressure gauge pointer is stuck between the closing lockout pressure value F2 and the reclosing lockout pressure value F1. If both the closing lockout pressure value F2 and the closing reset pressure value F5 are outside the corresponding standard range, the adjustment nut of the 63QC oil pressure switch has shifted. Please check the marking on the 63QC oil pressure switch nut for displacement. 5. If the opening lockout pressure value F3 (F3 is the pressure value when the low oil pressure lockout opening contactor switches from the reset state to the energized state) is not reading and the opening reset pressure value F4 (F4 is the pressure value when the low oil pressure lockout opening contactor switches from the energized state to the reset state) is within the standard range for the closing reset pressure value F5, the low oil pressure lockout opening contactor is not operating, indicating a faulty 63QT oil pressure switch or low oil pressure lockout opening contactor.

[0146] S43: If all pressure values ​​are within the standard range, sort them according to the pressure values ​​to generate a first sequence.

[0147] The first sequence refers to a sequence generated by sorting the pressure values.

[0148] In an embodiment of the present invention, if all pressure values ​​are within the standard pressure value range, they are sorted according to their magnitude to generate a first sequence.

[0149] S44: Determine whether the first sequence matches a preset standard sequence.

[0150] The standard sequence refers to the sequence generated by sorting the various pressure values ​​in the rated state according to their size. The standard sequence is sorted as follows: reclosing reset pressure value F6 > reclosing lock pressure value F1 > closing reset pressure value F5 > closing lock pressure value F2 > opening reset pressure value F4 > opening lock pressure value F3.

[0151] In an embodiment of the present invention, it is determined whether the first sequence matches a preset standard sequence.

[0152] S45. If the first sequence matches the standard sequence, the fault analysis result is determined to be normal.

[0153] In the embodiment of the present invention, when the first sequence matches the standard sequence, the fault analysis result is determined to be normal.

[0154] S46: If the first sequence does not match the standard sequence, determine that the fault analysis result is a fault.

[0155] In an embodiment of the present invention, when the first sequence does not match the standard sequence, the fault analysis result is that a fault has occurred. The photos and videos are manually checked. When the manual confirmation is that the taken values ​​are correct, the unqualified data is further analyzed to locate the specific fault point.

[0156] In an embodiment of the present invention, in response to a circuit breaker verification request, two images to be analyzed are obtained from adjacent frames of each contactor monitoring video. A state analysis is performed on each image to be analyzed using a preset state analysis model to determine the state information corresponding to the image to be analyzed. A determination is made as to whether the two state information matches. If the two state information do not match, a pressure gauge image to be analyzed is obtained, and the time interval between the last frame of each contactor image to be analyzed and the pressure gauge image to be analyzed is calculated. A determination is made as to whether the time interval is greater than or equal to a preset delay warning value. If the time interval is less than the delay warning value, a pressure value analysis is performed on the pressure gauge analysis image using a preset pressure gauge analysis model to calculate the pressure value corresponding to the pressure gauge image to be analyzed. A determination is made as to whether the number of pressure values ​​is equal to a preset number threshold. If the pressure values ​​are equal to the number threshold, a fault analysis operation is performed based on the multiple pressure values ​​to generate a fault analysis result for the circuit breaker hydraulic mechanism. This solves the technical problem of low efficiency, poor human-machine efficiency, and data deviation in the existing manual verification method, which cannot accurately verify the pressure signal of the circuit breaker hydraulic mechanism and reduces the reliability of substation operation. The present application analyzes and processes the image to be analyzed and the pressure gauge image to be analyzed respectively through a preset state analysis model and a pressure gauge analysis model, and analyzes the time interval for obtaining the image to be analyzed and the pressure gauge image to be analyzed, thereby reducing the deviation in reading the pressure value and improving work efficiency, thereby improving the reliability of substation operation.

[0157] See also Figure 3 , Figure 3 This is a structural block diagram of a calibration device for a circuit breaker hydraulic mechanism provided in Embodiment 3 of the present invention.

[0158] An embodiment of the present invention provides a circuit breaker hydraulic mechanism calibration device, comprising:

[0159] The image acquisition module 301 is used to respond to the circuit breaker verification request and acquire two images to be analyzed in adjacent frames of each contactor monitoring video;

[0160] The state information acquisition module 302 is used to perform state analysis on each image to be analyzed using a preset state analysis model to determine the state information corresponding to the image to be analyzed;

[0161] Matching analysis module 303, used to determine whether two pieces of status information match;

[0162] The pressure gauge image to be analyzed acquisition module 304 is configured to acquire the pressure gauge image to be analyzed if the two pieces of status information do not match;

[0163] The pressure value reading module 305 is used to analyze the pressure value of the pressure gauge image to be analyzed using a preset pressure gauge analytical model to determine the pressure value corresponding to the pressure gauge image to be analyzed;

[0164] The judgment and analysis module 306 is used to judge whether the quantity of the pressure value is equal to a preset quantity threshold;

[0165] The fault analysis module 307 is configured to perform a fault analysis operation based on the multiple pressure values ​​if the quantity value is equal to the quantity threshold, and generate a fault analysis result of the circuit breaker hydraulic mechanism.

[0166] Optionally, the status information acquisition module 302 includes the following submodules:

[0167] The target image acquisition submodule is used to extract features from each image to be analyzed using a preset state analysis model to generate a target image; wherein the state analysis model is used to analyze the image to be analyzed and output the corresponding target image;

[0168] The ratio calculation submodule is used to calculate the ratio between the target image and the preset standard contour image;

[0169] The status analysis submodule is used to determine whether the proportion value is greater than or equal to the preset status threshold;

[0170] If the proportion value is greater than or equal to the state threshold, it is determined that the state information corresponding to the image to be analyzed is the first state value;

[0171] If the proportion value is less than the state threshold, it is determined that the state information corresponding to the image to be analyzed is the second state value.

[0172] Optionally, the pressure value reading module 305 includes the following submodules:

[0173] The pressure gauge analysis image parsing submodule is used to input the pressure gauge analysis image into a preset pressure gauge parsing model to generate the scale starting point coordinates, scale width, pointer center coordinates and range value corresponding to the pressure gauge image to be analyzed; wherein the pressure gauge parsing model is used to analyze the pressure gauge analysis image and output the corresponding scale starting point coordinates, scale width, pointer center coordinates and range value;

[0174] The pressure value calculation submodule is used to construct a pressure value analysis function based on the scale starting point coordinates, scale width, pointer center coordinates and range value, and generate the pressure value corresponding to the pressure gauge image to be analyzed.

[0175] Optionally, the pressure value analysis function is specifically:

[0176] P=(X P -X0)*S / W;

[0177] Among them, P is the pressure value, X P is the coordinate of the center of the pointer, X0 is the coordinate of the scale starting point, S is the range value, and W is the scale width.

[0178] Optionally, the fault analysis module 307 includes the following submodules:

[0179] The composite key acquisition submodule is used to generate corresponding composite keys according to the contactor and status information corresponding to each pressure value;

[0180] The standard interval matching submodule is used to input the composite key into the preset standard interval key-value pair list to match the standard interval corresponding to the pressure value;

[0181] The fault analysis and judgment submodule is used to generate a fault analysis result of the circuit breaker hydraulic mechanism based on the comparison results of each pressure value with the standard interval.

[0182] Optionally, the fault analysis and judgment submodule includes the following units:

[0183] A pressure value analysis unit, used to determine whether each pressure value is within a standard range;

[0184] If any pressure value is not within the standard range, the fault analysis result of the circuit breaker hydraulic mechanism is determined to be a fault;

[0185] If all pressure values ​​are within the standard range, they are sorted according to the pressure values ​​to generate the first sequence;

[0186] A first sequence matching unit, configured to determine whether the first sequence matches a preset standard sequence;

[0187] If the first sequence matches the standard sequence, the fault analysis result is determined to be normal;

[0188] If the first sequence does not match the standard sequence, the fault analysis result is determined to be a fault.

[0189] Optionally, a time interval warning module 308 is further included:

[0190] Calculate the time interval between the last frame of the image to be analyzed of each contactor and the image to be analyzed of the pressure gauge;

[0191] Determine whether the time interval is greater than or equal to the preset delay warning value;

[0192] If the time interval is greater than or equal to the delay warning value, the process jumps to the step of obtaining two images to be analyzed of adjacent frames of each contactor monitoring video until the time interval is less than the preset warning value.

[0193] Embodiment 4 of the present invention further provides an electronic device, comprising: a memory and a processor, wherein a computer program is stored in the memory; when the computer program is executed by the processor, the processor executes the circuit breaker hydraulic mechanism calibration method as described in any of the above embodiments.

[0194] The fifth embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for verifying the hydraulic mechanism of a circuit breaker according to any embodiment of the present invention is implemented.

[0195] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0196] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0197] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0198] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0199] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0200] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for calibrating a hydraulic mechanism of a circuit breaker, characterized in that: include: In response to a circuit breaker verification request, two images to be analyzed are obtained from adjacent frames of each contactor monitoring video; Performing state analysis on each of the images to be analyzed using a preset state analysis model to determine state information corresponding to the image to be analyzed; Determining whether the two pieces of status information match; If the two pieces of status information do not match, obtaining the pressure gauge image to be analyzed; Performing pressure value analysis on the pressure gauge image to be analyzed using a preset pressure gauge analytical model to determine the pressure value corresponding to the pressure gauge image to be analyzed; Determining whether the quantity of the pressure value is equal to a preset quantity threshold; If the quantity value is equal to the quantity threshold, performing a fault analysis operation based on the plurality of pressure values ​​to generate a fault analysis result of the circuit breaker hydraulic mechanism; The step of performing a fault analysis operation according to the plurality of pressure values ​​to generate a fault analysis result of the circuit breaker hydraulic mechanism includes: Generate a corresponding composite key according to the contactor and state information corresponding to each pressure value; Input the composite key into a preset standard interval key-value pair list to match the standard interval corresponding to the pressure value; generating a fault analysis result of the circuit breaker hydraulic mechanism according to a comparison result of each of the pressure values ​​and the standard interval; The step of generating a fault analysis result of the circuit breaker hydraulic mechanism according to the comparison result of each of the pressure values ​​with the standard interval includes: Determining whether each of the pressure values ​​is within the standard range; If any of the pressure values ​​is not within the standard range, determining that a fault analysis result of the circuit breaker hydraulic mechanism is a fault; If all the pressure values ​​are within the standard range, the pressure values ​​are sorted according to their magnitude to generate a first sequence; Determining whether the first sequence matches a preset standard sequence; If the first sequence matches the standard sequence, determining that the fault analysis result is normal; If the first sequence does not match the standard sequence, the fault analysis result is determined to be a fault.

2. The circuit breaker hydraulic mechanism calibration method according to claim 1, characterized in that: The step of performing state analysis on each of the images to be analyzed using a preset state analysis model to determine state information corresponding to the image to be analyzed includes: Extract features from each of the images to be analyzed using a preset state analysis model to generate a target image; wherein the state analysis model is used to analyze the image to be analyzed and output a corresponding target image; Calculating the ratio between the target image and the preset standard contour image; Determine whether the proportion value is greater than or equal to a preset status threshold; If the proportion value is greater than or equal to the state threshold, determining that the state information corresponding to the image to be analyzed is a first state value; If the proportion value is less than the state threshold, it is determined that the state information corresponding to the image to be analyzed is a second state value.

3. The circuit breaker hydraulic mechanism calibration method according to claim 1, characterized in that: The step of performing pressure value analysis on the pressure gauge image to be analyzed using a preset pressure gauge analytical model to determine the pressure value corresponding to the pressure gauge image to be analyzed includes: Inputting the pressure gauge image to be analyzed into a preset pressure gauge analytical model to generate the scale starting point coordinates, scale width, pointer center coordinates, and range value corresponding to the pressure gauge image to be analyzed; wherein the pressure gauge analytical model is used to analyze the pressure gauge analysis image and output the corresponding scale starting point coordinates, scale width, pointer center coordinates, and range value; A pressure value analysis function is constructed according to the coordinates of the scale starting point, the scale width, the pointer center coordinates and the range value to generate a pressure value corresponding to the image to be analyzed of the pressure gauge.

4. The circuit breaker hydraulic mechanism calibration method according to claim 3, characterized in that: The pressure value analysis function is specifically: ; Where P is the pressure value, is the center coordinate of the pointer, is the coordinate of the scale starting point, is the range value, is the scale width.

5. The circuit breaker hydraulic mechanism calibration method according to claim 1, characterized in that: Before the step of analyzing the pressure value of the pressure gauge image to be analyzed using a preset pressure gauge analytical model to determine the pressure value corresponding to the pressure gauge image to be analyzed, the method further includes: Calculating the time interval between obtaining the last frame of the image to be analyzed of each contactor and the image to be analyzed of the pressure gauge; Determining whether the time interval is greater than or equal to a preset delay warning value; If the time interval is greater than or equal to the delay warning value, the process jumps to the step of obtaining two images to be analyzed of adjacent frames of each contactor monitoring video until the time interval is less than the preset delay warning value.

6. A circuit breaker hydraulic mechanism calibration device, based on the circuit breaker hydraulic mechanism calibration method according to any one of claims 1 to 5, characterized in that: include: The image acquisition module to be analyzed is used to respond to the circuit breaker verification request and obtain two images to be analyzed in adjacent frames of each contactor monitoring video; A state information acquisition module is used to perform state analysis on each of the images to be analyzed using a preset state analysis model to determine state information corresponding to the image to be analyzed; A matching analysis module, used to determine whether the two pieces of status information match; a pressure gauge image to be analyzed acquisition module, configured to acquire the pressure gauge image to be analyzed if the two pieces of status information do not match; a pressure value reading module, configured to perform pressure value analysis on the pressure gauge image to be analyzed using a preset pressure gauge analytical model, and determine the pressure value corresponding to the pressure gauge image to be analyzed; A judgment and analysis module, configured to judge whether the quantity of the pressure value is equal to a preset quantity threshold; A fault analysis module is configured to perform a fault analysis operation based on a plurality of the pressure values ​​to generate a fault analysis result of the circuit breaker hydraulic mechanism if the quantity value is equal to the quantity threshold.

7. An electronic device, characterized in that: The method comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the circuit breaker hydraulic mechanism calibration method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed, the method for calibrating the hydraulic mechanism of a circuit breaker according to any one of claims 1 to 5 is implemented.

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