System and method for analyzing and measuring mechanical strength of mutual inductor

Abstract

The invention provides a system and a method for analyzing and measuring the mechanical strength of a mutual inductor, and relates to the technical field of mechanical performance detection of electrical equipment. The main controller controls the load output end of the tensile machine to output a load to the traction piece so as to drive the clamping piece to pull the bearing terminal of the mutual inductor; receiving a plurality of pieces of first distance data which are collected by a distance sensor at a preset sampling frequency and have a sequential relationship relative to the measuring plate; after a first preset duration, the load output end of the tensile machine is controlled to stop outputting the load to the traction piece, so that the clamping piece stops pulling the bearing terminal of the mutual inductor; receiving a plurality of second distance data which are collected by the distance sensor at a preset sampling frequency within a second preset time length and have a sequential relationship with respect to the measuring plate; according to the multiple pieces of first distance data with the time sequence relation and the multiple pieces of second distance data with the time sequence relation, whether the mechanical strength of the bearing terminal of the mutual inductor is abnormal or not is determined, errors caused by manual measurement are reduced, and the accuracy is high.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical performance detection of electrical equipment, and in particular to a system and method for analyzing and measuring the mechanical strength of a transformer. Background Art

[0002] The instrument transformer is mainly used in conjunction with electrical instruments to measure the current, voltage and electric energy of lines and equipment. At the same time, it cooperates with relay protection and automatic devices to protect the power system and equipment from overcurrent, overvoltage, overload and single-phase grounding. The load-bearing terminals of the instrument transformer usually bear the weight of the cable, and its mechanical strength directly affects the working stability and safety. Therefore, it is necessary to measure the mechanical strength of the load-bearing terminals of the instrument transformer.

[0003] Currently, the measurement of the mechanical strength of the load-bearing terminals of the transformer usually relies on manual measurement, which has low accuracy and wastes manpower costs. Summary of the invention

[0004] The present application provides a system and method for analyzing and measuring the mechanical strength of a transformer, which are used to solve the problems of low accuracy and waste of manpower costs in the prior art in measuring the mechanical strength of a load-bearing terminal of a transformer.

[0005] In a first aspect, the present application provides an analysis and measurement system for the mechanical strength of a transformer, comprising a control panel, a measuring plate, a clamp, a pulling member, a tensile machine, a posture adjustment assembly, a bracket, a distance sensor, and a main controller, wherein the clamp is clamped on the load-bearing terminal of the transformer, the measuring plate is abutted against the load-bearing terminal of the transformer, the clamp, the pulling member, and the load output end of the tensile machine are connected in sequence, the distance sensor is arranged on the bracket, the bracket is arranged on the posture adjustment assembly, and the main controller is electrically connected to the control panel, the tensile machine, the posture adjustment assembly, and the distance sensor, respectively.

[0006] The main controller is used to respond to the measurement instruction input by the user from the control panel, and control the posture adjustment assembly to drive the distance sensor arranged on the bracket to adjust to the specified posture, so that the distance sensor faces the measurement board;

[0007] The main controller is also used to control the load output end of the tensile machine to output the load to the pulling member, so as to drive the clamp to pull the load-bearing terminal of the transformer; and receive a plurality of first distance data with a time sequence relationship relative to the measuring plate collected by the distance sensor at a preset sampling frequency;

[0008] The main controller is also used to control the load output end of the tensile machine to stop outputting the load to the pulling member after a first preset time, so that the clamp stops pulling the load-bearing terminal of the transformer;

[0009] The main controller is also used to receive a plurality of second distance data having a time sequence relationship with respect to the measuring board, which are collected by the distance sensor at a preset sampling frequency within a second preset time period;

[0010] The main controller is also used to determine whether there is an abnormality in the mechanical strength of the load-bearing terminals of the transformer based on multiple first distance data with a time sequence relationship and multiple second distance data with a time sequence relationship; if there is an abnormality in the mechanical strength, output a prompt message indicating the abnormality in the mechanical strength to the control panel for display.

[0011] In some embodiments, the main controller is specifically used to determine the displacement stretch difference between the average value of the last N first distance data and the average value of the first N first distance data among a plurality of first distance data with a time series relationship, determine the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among a plurality of second distance data with a time series relationship, and determine whether the difference in the change amplitude between two adjacent first distance data among a plurality of first distance data with a time series relationship is greater than a preset difference threshold, where N is an integer greater than or equal to 3;

[0012] When the displacement stretch difference is greater than the set displacement stretch threshold, the displacement rebound difference is less than the set displacement rebound threshold, and the change amplitude difference is greater than the preset difference threshold, it is determined that there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer.

[0013] In some embodiments, the main controller is specifically used to

[0014] Determine the displacement stretch difference between the average value of the last N first distance data and the average value of the first N first distance data among a plurality of first distance data with a time series relationship, and determine the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among a plurality of second distance data with a time series relationship, the slope of a first straight line obtained by fitting a plurality of first distance data with a time series relationship, the slope of a second straight line obtained by fitting a plurality of second distance data with a time series relationship, a first normal distribution of a plurality of first distance data with a time series relationship, and a second normal distribution of a plurality of second distance data with a time series relationship;

[0015] The displacement stretch difference, the displacement rebound difference, the slope of the first straight line, the slope of the second straight line, the first normal distribution and the second normal distribution are input into the pre-trained mechanical strength anomaly recognition model to determine whether there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer, wherein the mechanical strength anomaly recognition model is trained by inputting multiple training samples into the neural network to be trained, each training sample includes the historical displacement stretch difference, the historical displacement rebound difference, the slope of the historical first straight line, the slope of the historical second straight line, the historical first normal distribution, the historical second normal distribution and the corresponding label, and the label is used to indicate whether there is an abnormality in the mechanical strength of the load-bearing terminal of the historical transformer.

[0016] In some embodiments, the posture adjustment assembly includes a first drive module, a second drive module, a third drive module, a lifting platform, a rotating platform and a displacement platform. The first drive module is connected to the lifting platform, the second drive module is connected to the rotating platform, the third drive module is connected to the displacement platform, a bracket provided with a distance sensor is arranged on the displacement platform, the displacement platform is slidably connected to the rotating platform, and the rotating platform is rotatably connected to the lifting platform. The main controller is specifically used to control the first drive module to drive the lifting platform to lift and lower a preset angle in the vertical direction to drive the rotating platform, the displacement platform and the bracket provided with the distance sensor to lift and lower in the vertical direction, control the second drive module to drive the rotating platform to rotate around a preset angle in the horizontal direction to drive the displacement platform and the bracket provided with the distance sensor to rotate around the horizontal direction, and control the third drive module to drive the displacement platform to slide a preset distance along the rotating platform to drive the bracket provided with the distance sensor to slide in the horizontal direction so that the distance sensor is facing the measuring plate.

[0017] In some embodiments, the distance sensor is a laser sensor.

[0018] In some embodiments, the system further includes a communication port, and the main controller is further used to transmit prompt information indicating abnormality in mechanical strength to a terminal device for display via the communication port.

[0019] In a second aspect, the present application provides an analytical measurement method for the mechanical strength of a transformer, which is applied to an analytical measurement system for the mechanical strength of a transformer. The system includes a control panel, a measuring plate, a clamp, a pulling member, a tensile machine, a posture adjustment assembly, a bracket, a distance sensor, and a main controller. The clamp is clamped on the load-bearing terminal of the transformer, the measuring plate is abutted against the load-bearing terminal of the transformer, the clamp, the pulling member, and the load output end of the tensile machine are connected in sequence, the distance sensor is arranged on the bracket, the bracket is arranged on the posture adjustment assembly, the main controller is electrically connected to the control panel, the tensile machine, the posture adjustment assembly, and the distance sensor, respectively, and the method includes:

[0020] The main controller controls the posture adjustment assembly to drive the distance sensor disposed on the bracket to adjust to a specified posture in response to a measurement instruction input by a user from the control panel, so that the distance sensor faces the measurement board;

[0021] Control the load output end of the tensile machine to output the load to the pulling member, so as to drive the clamp to pull the load-bearing terminal of the transformer; and receive a plurality of first distance data with a time sequence relationship relative to the measuring plate collected by the distance sensor at a preset sampling frequency;

[0022] After a first preset time, the load output end of the tensile machine is controlled to stop outputting the load to the pulling member, so that the clamp stops pulling the load-bearing terminal of the transformer;

[0023] Receiving a plurality of second distance data having a time sequence relationship with respect to the measuring board collected by the distance sensor at a preset sampling frequency within a second preset time period;

[0024] Based on multiple first distance data with a time sequence relationship and multiple second distance data with a time sequence relationship, determine whether there is an abnormality in the mechanical strength of the load-bearing terminals of the transformer; if there is an abnormality in the mechanical strength, output a prompt message indicating the abnormality in the mechanical strength to the control panel for display.

[0025] In some embodiments, determining whether there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer according to a plurality of first distance data having a time sequence relationship and a plurality of second distance data having a time sequence relationship includes:

[0026] Determine the displacement stretch difference between the average value of the last N first distance data and the average value of the first N first distance data among a plurality of first distance data having a time series relationship, determine the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among a plurality of second distance data having a time series relationship, and determine whether the difference in the change amplitude between two adjacent first distance data among a plurality of first distance data having a time series relationship is greater than a preset difference threshold, wherein N is an integer greater than or equal to 3;

[0027] When the displacement stretch difference is greater than the set displacement stretch threshold, the displacement rebound difference is less than the set displacement rebound threshold, and the change amplitude difference is greater than the preset difference threshold, it is determined that there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer.

[0028] In some embodiments, determining whether there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer according to a plurality of first distance data having a time sequence relationship and a plurality of second distance data having a time sequence relationship includes:

[0029] Determine the displacement stretch difference between the average value of the last N first distance data and the average value of the first N first distance data among a plurality of first distance data with a time series relationship, and determine the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among a plurality of second distance data with a time series relationship, the slope of a first straight line obtained by fitting a plurality of first distance data with a time series relationship, the slope of a second straight line obtained by fitting a plurality of second distance data with a time series relationship, a first normal distribution of a plurality of first distance data with a time series relationship, and a second normal distribution of a plurality of second distance data with a time series relationship;

[0030] The displacement stretch difference, the displacement rebound difference, the slope of the first straight line, the slope of the second straight line, the first normal distribution and the second normal distribution are input into the pre-trained mechanical strength anomaly recognition model to determine whether there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer, wherein the mechanical strength anomaly recognition model is trained by inputting multiple training samples into the neural network to be trained, each training sample includes the historical displacement stretch difference, the historical displacement rebound difference, the slope of the historical first straight line, the slope of the historical second straight line, the historical first normal distribution, the historical second normal distribution and the corresponding label, and the label is used to indicate whether there is an abnormality in the mechanical strength of the load-bearing terminal of the historical transformer.

[0031] In some embodiments, the posture adjustment assembly includes a first drive module, a second drive module, a third drive module, a lifting platform, a rotating platform and a displacement platform, the first drive module is connected to the lifting platform, the second drive module is connected to the rotating platform, the third drive module is connected to the displacement platform, a bracket provided with a distance sensor is provided on the displacement platform, the displacement platform is slidably connected to the rotating platform, and the rotating platform is rotatably connected to the lifting platform.

[0032] The control posture adjustment assembly drives the distance sensor disposed on the bracket to adjust to a specified posture, including:

[0033] The first driving module is controlled to drive the lifting platform to lift a preset angle in the vertical direction, so as to drive the rotating platform, the displacement platform and the bracket provided with the distance sensor to lift and lower in the vertical direction; the second driving module is controlled to drive the rotating platform to rotate around a preset angle in the horizontal direction, so as to drive the displacement platform and the bracket provided with the distance sensor to rotate around the horizontal direction; and the third driving module is controlled to drive the displacement platform to slide a preset distance along the rotating platform, so as to drive the bracket provided with the distance sensor to slide in the horizontal direction, so that the distance sensor faces the measuring plate.

[0034] The present application provides a system and method for analyzing and measuring the mechanical strength of a transformer, which can control a posture adjustment assembly to drive a distance sensor arranged on a bracket to adjust to a specified posture so that the distance sensor faces a measuring plate; control a load output end of a tensile machine to output a load to a pulling member to drive a clamp to pull a load-bearing terminal of the transformer; and receive a plurality of first distance data with a time sequence relationship collected by the distance sensor at a preset sampling frequency relative to the measuring plate; after a first preset time length, control the load output end of the tensile machine to stop outputting a load to the pulling member so that the clamp stops pulling the load-bearing terminal of the transformer; receive a plurality of second distance data with a time sequence relationship collected by the distance sensor at a preset sampling frequency relative to the measuring plate within a second preset time length; determine whether the mechanical strength of the load-bearing terminal of the transformer is abnormal according to the plurality of first distance data with a time sequence relationship and the plurality of second distance data with a time sequence relationship; and output a prompt message indicating that the mechanical strength is abnormal to a control panel for display when the mechanical strength is abnormal. In this way, it is possible to automatically determine whether the mechanical strength of the load-bearing terminal of the transformer is abnormal, saving labor costs, reducing errors caused by manual measurement, and having high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0036] Figure 1 A schematic diagram of the structure of a system for analyzing and measuring the mechanical strength of a mutual inductor provided in an embodiment of the present application;

[0037] Figure 2 A flow chart of a method for analyzing and measuring the mechanical strength of a mutual inductor provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0039] Various structural schematic diagrams according to embodiments of the present disclosure are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may further design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0040] In the context of the present disclosure, when a layer / element is referred to as being "on" another layer / element, the layer / element may be directly on the other layer / element or an intervening layer / element may exist therebetween. In addition, if a layer / element is "on" another layer / element in one orientation, the layer / element may be "below" the other layer / element when the orientation is reversed.

[0041] The following is a detailed description of the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0042] See also Figure 1 The embodiment of the present application provides an analysis and measurement system for the mechanical strength of a transformer, including a control panel 18, a measuring plate 6, a clamp 3, a pulling member 4, a tensile machine 5, a posture adjustment assembly, a bracket 7, a distance sensor 8 and a main controller 14, wherein the clamp 3 is clamped on the load-bearing terminal 2 of the transformer 1, the measuring plate 6 is abutted against the load-bearing terminal 2 of the transformer 1, and the clamp 3, the pulling member 4, and the load output end of the tensile machine 5 are connected in sequence. For example, the measuring plate 6 can be a rectangular plate with a flat surface. The pulling member 4 can include a pulley and a pulling rope for driving sliding and rolling, one end of the pulling rope is connected to the clamp 3, and the other end of the pulling rope is connected to the tensile machine 5. The control panel 18 can be, but is not limited to, a touch screen. The distance sensor 8 is arranged on the bracket 7, the bracket 7 is arranged on the posture adjustment assembly, and the main controller 14 is electrically connected to the control panel 18, the tensile machine 5, the posture adjustment assembly and the distance sensor 8 respectively.

[0043] The main controller 14 is used to respond to the measurement instruction input by the user from the control panel 18, and control the posture adjustment assembly to drive the distance sensor 8 provided on the bracket 7 to adjust to the specified posture, so that the distance sensor 8 is directly opposite to the measuring plate 6. It can be understood that the distance sensor 8 can measure the distance relative to the measuring plate 6. Since the measuring plate 6 is against the load-bearing terminal 2 of the transformer 1, the deformation of the load-bearing terminal 2 of the transformer 1 can be determined by determining the change in the distance of the measuring plate 6, and then determine whether the mechanical strength of the load-bearing terminal 2 of the transformer 1 is abnormal.

[0044] Exemplarily, the distance sensor 8 may be, but is not limited to, a laser sensor 8. In some embodiments, Figure 1 As shown, the posture adjustment assembly includes a first drive module 15, a second drive module 16, a third drive module 17, a lifting platform 9, a rotating platform 10 and a displacement platform 11. The first drive module 15 is connected to the lifting platform 9, the second drive module 16 is connected to the rotating platform 10, the third drive module 17 is connected to the displacement platform 11, and a bracket 7 provided with a distance sensor 8 is arranged on the displacement platform 11. The displacement platform 11 is slidably connected to the rotating platform 10, and the rotating platform 10 is rotatably connected to the lifting platform 9.

[0045] The main controller 14 is specifically used to control the first driving module 15 to drive the lifting platform 9 to lift a preset angle in the vertical direction, so as to drive the rotating platform 10, the displacement platform 11 and the bracket 7 provided with the distance sensor 8 to lift and lower in the vertical direction, control the second driving module 16 to drive the rotating platform 10 to rotate around a preset angle in the horizontal direction to drive the displacement platform 11 and the bracket 7 provided with the distance sensor 8 to rotate around the horizontal direction, and control the third driving module 17 to drive the displacement platform 11 to slide a preset distance along the rotating platform 10, so as to drive the bracket 7 provided with the distance sensor 8 to slide in the horizontal direction (such as the moving platform includes a guide rail 12 and a slider 13, the bracket 7 is connected to one side of the slider 13, the other side of the slider 13 is slidably connected to the guide rail 12, and one end of the guide rail 12 is connected to the rotating platform 10), so that the distance sensor 8 is facing the measuring plate 6.

[0046] The main controller 14 is also used to control the load output end of the tensile machine 5 to output load to the pulling member 4, so as to drive the clamp 3 to pull the load-bearing terminal 2 of the transformer 1; and receive the first distance data with a time sequence relationship relative to the measuring plate 6 collected by the distance sensor 8 at a preset sampling frequency.

[0047] Exemplarily, the output load may range from 2000N to 5000N, which is not limited here. It is understandable that when a load is applied to the load-bearing terminal 2 of the transformer 1, the load-bearing terminal 2 of the transformer 1 may be deformed, thereby causing the distance from the measuring plate 6 to the distance sensor 8 to change.

[0048] The main controller 14 is further configured to control the load output end of the tensile machine 5 to stop outputting the load to the pulling member 4 after a first preset time period, so that the clamp 3 stops pulling the load-bearing terminal 2 of the transformer 1 .

[0049] The main controller 14 is further configured to receive a plurality of second distance data having a time sequence relationship relative to the measuring board 6 , which are collected by the distance sensor 8 at a preset sampling frequency within a second preset time period.

[0050] Exemplarily, the second preset time may be 10s, 15s or 20s. It is understandable that after the load-bearing terminal 2 of the transformer 1 stops pulling, the deformation of the load-bearing terminal 2 of the transformer 1 may rebound, thereby changing the distance from the measuring plate 6 to the distance sensor 8.

[0051] The main controller 14 is further used to determine whether there is an abnormality in the mechanical strength of the load-bearing terminal 2 of the transformer 1 according to a plurality of first distance data having a time sequence relationship and a plurality of second distance data having a time sequence relationship.

[0052] In some embodiments, the main controller 14 is specifically used to determine the displacement stretching difference between the average value of the last N first distance data and the average value of the first N first distance data among a plurality of first distance data that have a time series relationship, determine the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among a plurality of second distance data that have a time series relationship, and determine whether the difference in change amplitudes between two adjacent first distance data among a plurality of first distance data that have a time series relationship is greater than a preset difference threshold, where N is an integer greater than or equal to 3 (for example, N can be equal to 3 or 4 or 5); when the displacement stretching difference is greater than the set displacement stretching threshold, the displacement rebound difference is less than the set displacement rebound threshold, and the change amplitude difference is greater than the preset difference threshold, it is determined that there is an abnormality in the mechanical strength of the load-bearing terminal 2 of the transformer 1, with high accuracy and reliability.

[0053] In other embodiments, the main controller 14 is specifically used to determine the displacement stretching difference between the average value of the last N first distance data and the average value of the first N first distance data among a plurality of first distance data with a time series relationship, and to determine the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among a plurality of second distance data with a time series relationship, the slope of the first straight line obtained by fitting a plurality of first distance data with a time series relationship, the slope of the second straight line obtained by fitting a plurality of second distance data with a time series relationship, the first normal distribution of a plurality of first distance data with a time series relationship, and the second normal distribution of a plurality of second distance data with a time series relationship, where N is an integer greater than or equal to 3 (for example, N can be equal to 3 or 4 or 5); the displacement stretching difference, the displacement rebound difference, the slope of the first straight line, the slope of the second straight line, the first normal distribution, and the second normal distribution are input into a pre-trained mechanical strength abnormality recognition model to determine whether there is an abnormality in the mechanical strength of the load-bearing terminal 2 of the mutual inductor 1, with high accuracy and reliability.

[0054] Among them, the mechanical strength abnormality recognition model is obtained by inputting multiple training samples into the neural network to be trained, and each training sample includes the historical displacement stretching difference, the historical displacement rebound difference, the slope of the historical first straight line, the slope of the historical second straight line, the historical first normal distribution, the historical second normal distribution and the corresponding label, and the label is used to indicate whether there is any abnormality in the mechanical strength of the load-bearing terminal 2 of the historical transformer 1.

[0055] The main controller 14 is also used to output a prompt message indicating that the mechanical strength is abnormal to the control panel 18 for display, so that the tester can browse it.

[0056] In some embodiments, the system further includes a communication port, and the main controller 14 is further used to transmit prompt information indicating abnormal mechanical strength to a terminal device for display through the communication port for viewing by testers.

[0057] In addition, the embodiment of the present application provides an analytical measurement method for the mechanical strength of a mutual inductor, which is applied to an analytical measurement system for the mechanical strength of a mutual inductor. It should be noted that the basic principle and technical effects of the analytical measurement method for the mechanical strength of a mutual inductor provided in the embodiment of the present application are the same as those in the above embodiment. For the sake of brief description, for the parts not mentioned in the embodiment of the present application, reference may be made to the corresponding contents in the above embodiment.

[0058] Still Figure 1As shown, the system includes a control panel 18, a measuring plate 6, a clamp 3, a pulling member 4, a tensile machine 5, a posture adjustment assembly, a bracket 7, a distance sensor 8 and a main controller 14. The clamp 3 is clamped on the load-bearing terminal 2 of the transformer 1, the measuring plate 6 is pressed against the load-bearing terminal 2 of the transformer 1, the clamp 3, the pulling member 4, and the load output end of the tensile machine 5 are connected in sequence, the distance sensor 8 is arranged on the bracket 7, the bracket 7 is arranged on the posture adjustment assembly, and the main controller 14 is electrically connected to the control panel 18, the tensile machine 5, the posture adjustment assembly and the distance sensor 8 respectively. Figure 2 As shown, the method provided by the embodiment of the present application includes:

[0059] S201 : In response to a measurement instruction input by a user from the control panel 18 , the main controller 14 controls the posture adjustment assembly to drive the distance sensor 8 disposed on the bracket 7 to adjust to a specified posture so that the distance sensor 8 faces the measurement plate 6 .

[0060] Specifically, Figure 1 As shown, the posture adjustment assembly includes a first drive module 15, a second drive module 16, a third drive module 17, a lifting platform 9, a rotating platform 10 and a displacement platform 11. The first drive module 15 is connected to the lifting platform 9, the second drive module 16 is connected to the rotating platform 10, the third drive module 17 is connected to the displacement platform 11, and a bracket 7 provided with a distance sensor 8 is arranged on the displacement platform 11. The displacement platform 11 is slidably connected to the rotating platform 10, and the rotating platform 10 is rotatably connected to the lifting platform 9.

[0061] S201 can be specifically implemented as follows: controlling the first driving module 15 to drive the lifting platform 9 to lift and lower by a preset angle in the vertical direction, so as to drive the rotating platform 10, the displacement platform 11 and the bracket 7 provided with the distance sensor 8 to lift and lower in the vertical direction; controlling the second driving module 16 to drive the rotating platform 10 to rotate around a preset angle in the horizontal direction, so as to drive the displacement platform 11 and the bracket 7 provided with the distance sensor 8 to rotate around the horizontal direction; and controlling the third driving module 17 to drive the displacement platform 11 to slide a preset distance along the rotating platform 10, so as to drive the bracket 7 provided with the distance sensor 8 to slide in the horizontal direction, so that the distance sensor 8 is directly opposite the measuring plate 6.

[0062] S202: Control the load output end of the tensile machine 5 to output load to the pulling member 4 to drive the clamp 3 to pull the load-bearing terminal 2 of the transformer 1; and receive multiple first distance data with a time sequence relationship relative to the measuring plate 6 collected by the distance sensor 8 at a preset sampling frequency.

[0063] S203 : After a first preset time, the load output end of the tensile machine 5 is controlled to stop outputting the load to the pulling member 4 , so that the clamp 3 stops pulling the load-bearing terminal 2 of the transformer 1 .

[0064] S204: receiving a plurality of second distance data having a time sequence relationship with respect to the measuring board 6 collected by the distance sensor 8 at a preset sampling frequency within a second preset time period.

[0065] S205: Determine whether there is an abnormality in the mechanical strength of the load-bearing terminal 2 of the transformer 1 according to a plurality of first distance data having a time sequence relationship and a plurality of second distance data having a time sequence relationship.

[0066] Specifically, the specific implementation of S205 includes but is not limited to the following two:

[0067] The first method: determining the displacement stretching difference between the average value of the last N first distance data and the average value of the first N first distance data among multiple first distance data with a time series relationship, determining the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among multiple second distance data with a time series relationship, and determining whether the difference in change amplitudes between two adjacent first distance data among multiple first distance data with a time series relationship is greater than a preset difference threshold, wherein N is an integer greater than or equal to 3; when the displacement stretching difference is greater than the set displacement stretching threshold, the displacement rebound difference is less than the set displacement rebound threshold, and the change amplitude difference is greater than the preset difference threshold, it is determined that there is an abnormality in the mechanical strength of the load-bearing terminal 2 of the mutual inductor 1.

[0068] The second method: determining the displacement stretching difference between the average value of the last N first distance data and the average value of the first N first distance data among multiple first distance data with a time series relationship, and determining the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among multiple second distance data with a time series relationship, the slope of the first straight line obtained by fitting multiple first distance data with a time series relationship, the slope of the second straight line obtained by fitting multiple second distance data with a time series relationship, the first normal distribution of multiple first distance data with a time series relationship, and the second normal distribution of multiple second distance data with a time series relationship; input the displacement stretching difference, the displacement rebound difference, the slope of the first straight line, the slope of the second straight line, the first normal distribution and the second normal distribution into a pre-trained mechanical strength abnormality recognition model to determine whether there is an abnormality in the mechanical strength of the load-bearing terminal 2 of the mutual inductor 1.

[0069] Among them, the mechanical strength abnormality recognition model is obtained by inputting multiple training samples into the neural network to be trained, and each training sample includes the historical displacement stretching difference, the historical displacement rebound difference, the slope of the historical first straight line, the slope of the historical second straight line, the historical first normal distribution, the historical second normal distribution and the corresponding label, and the label is used to indicate whether there is any abnormality in the mechanical strength of the load-bearing terminal 2 of the historical transformer 1.

[0070] S206: When the mechanical strength is abnormal, output a prompt message indicating that the mechanical strength is abnormal to the control panel 18 for display.

[0071] In summary, the embodiment of the present application provides a system and method for analyzing and measuring the mechanical strength of a mutual inductor, which can control the posture adjustment assembly to drive the distance sensor 8 arranged on the bracket 7 to adjust to a specified posture, so that the distance sensor 8 is facing the measuring plate 6; control the load output end of the tensile machine 5 to output the load to the pulling member 4, so as to drive the clamp 3 to pull the load-bearing terminal 2 of the mutual inductor 1; and receive a plurality of first distance data with a time-series relationship relative to the measuring plate 6 collected by the distance sensor 8 at a preset sampling frequency; after the first preset time length, control the load output end of the tensile machine 5 to stop outputting the load to the pulling member 4, so that the clamp 3 stops pulling the load-bearing terminal 2 of the mutual inductor 1; receive a plurality of second distance data with a time-series relationship relative to the measuring plate 6 collected by the distance sensor 8 at a preset sampling frequency within a second preset time length; determine whether there is an abnormality in the mechanical strength of the load-bearing terminal 2 of the mutual inductor 1 based on the plurality of first distance data with a time-series relationship and the plurality of second distance data with a time-series relationship; in the case of an abnormality in the mechanical strength, output a prompt message indicating that the mechanical strength is abnormal to the control panel 18 for display. In this way, it is possible to automatically determine whether there is an abnormality in the mechanical strength of the load-bearing terminal 2 of the transformer 1, thereby saving labor costs, reducing errors caused by manual measurement, and having high accuracy.

[0072] In the above description, the technical details such as the patterning of each layer are not described in detail. However, those skilled in the art should understand that various technical means can be used to form layers, regions, etc. of desired shapes. In addition, in order to form the same structure, those skilled in the art can also design methods that are not completely the same as the methods described above. In addition, although the various embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage.

[0073] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0074] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An analytical measurement system for the mechanical strength of a mutual inductor, characterized in that: The apparatus comprises a control panel, a measuring plate, a clamp, a pulling member, a tensile machine, a posture adjustment assembly, a bracket, a distance sensor and a main controller. The clamp is clamped on the load-bearing terminal of the transformer, the measuring plate is abutted against the load-bearing terminal of the transformer, the clamp, the pulling member and the load output end of the tensile machine are connected in sequence, the distance sensor is arranged on the bracket, the bracket is arranged on the posture adjustment assembly, and the main controller is electrically connected to the control panel, the tensile machine, the posture adjustment assembly and the distance sensor respectively. The main controller is used to control the posture adjustment assembly to drive the distance sensor disposed on the bracket to adjust to a specified posture in response to a measurement instruction input by a user from the control panel, so that the distance sensor faces the measurement board; The main controller is also used to control the load output end of the tensile machine to output a load to the pulling member, so as to drive the clamp to pull the load-bearing terminal of the transformer; and receive a plurality of first distance data having a time sequence relationship relative to the measuring plate collected by the distance sensor at a preset sampling frequency; The main controller is also used to control the load output end of the tensile machine to stop outputting the load to the pulling member after a first preset time, so that the clamp stops pulling the load-bearing terminal of the transformer; The main controller is also used to receive a plurality of second distance data having a time sequence relationship with respect to the measuring board, which are collected by the distance sensor at a preset sampling frequency within a second preset time period; The main controller is also used to determine whether there is an abnormality in the mechanical strength of the load-bearing terminal of the mutual inductor according to the plurality of first distance data having a time sequence relationship and the plurality of second distance data having a time sequence relationship; In the case where the mechanical strength is abnormal, a prompt message indicating that the mechanical strength is abnormal is output to the control panel for display.

2. The system according to claim 1, characterized in that The main controller is specifically used to determine the displacement stretching difference between the average value of the last N first distance data and the average value of the first N first distance data among the multiple first distance data with a time series relationship, determine the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among the multiple second distance data with a time series relationship, and determine whether the difference in the change amplitude of two adjacent first distance data among the multiple first distance data with a time series relationship is greater than a preset difference threshold, where N is an integer greater than or equal to 3; When the displacement stretching difference is greater than the set displacement stretching threshold, the displacement rebound difference is less than the set displacement rebound threshold, and the change amplitude difference is greater than the preset difference threshold, it is determined that there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer.

3. The system according to claim 1, characterized in that The main controller is specifically used for Determine the displacement stretching difference between the average value of the last N first distance data and the average value of the first N first distance data among the plurality of first distance data with a time series relationship, and determine the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among the plurality of second distance data with a time series relationship, the slope of a first straight line obtained by fitting the plurality of first distance data with a time series relationship, the slope of a second straight line obtained by fitting the plurality of second distance data with a time series relationship, a first normal distribution of the plurality of first distance data with a time series relationship, and a second normal distribution of the plurality of second distance data with a time series relationship; The displacement stretch difference, the displacement rebound difference, the slope of the first straight line, the slope of the second straight line, the first normal distribution and the second normal distribution are input into a pre-trained mechanical strength anomaly recognition model to determine whether there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer, wherein the mechanical strength anomaly recognition model is trained by inputting multiple training samples into the neural network to be trained, each of the training samples includes the historical displacement stretch difference, the historical displacement rebound difference, the slope of the historical first straight line, the slope of the historical second straight line, the historical first normal distribution, the historical second normal distribution and a corresponding label, and the label is used to indicate whether there is an abnormality in the mechanical strength of the load-bearing terminal of the historical transformer.

4. The system according to claim 1, characterized in that The posture adjustment assembly includes a first drive module, a second drive module, a third drive module, a lifting platform, a rotating platform and a displacement platform, the first drive module is connected to the lifting platform, the second drive module is connected to the rotating platform, the third drive module is connected to the displacement platform, a bracket provided with the distance sensor is arranged on the displacement platform, the displacement platform is slidably connected to the rotating platform, and the rotating platform is rotatably connected to the lifting platform, the main controller is specifically used to control the first drive module to drive the lifting platform to lift and lower a preset angle in the vertical direction, so as to drive the rotating platform, the displacement platform and the bracket provided with the distance sensor to lift and lower in the vertical direction, control the second drive module to drive the rotating platform to rotate around a preset angle in the horizontal direction, so as to drive the displacement platform and the bracket provided with the distance sensor to rotate around the horizontal direction, and control the third drive module to drive the displacement platform to slide a preset distance along the rotating platform, so as to drive the bracket provided with the distance sensor to slide in the horizontal direction, so that the distance sensor faces the measuring plate.

5. The system according to claim 1, characterized in that The distance sensor is a laser sensor.

6. The system according to claim 1, characterized in that The system also includes a communication port, and the main controller is also used to transmit the prompt information indicating that the mechanical strength is abnormal to the terminal device for display through the communication port.

7. A method for analyzing and measuring the mechanical strength of a mutual inductor, characterized in that: An analysis and measurement system for the mechanical strength of a transformer, the system comprising a control panel, a measuring plate, a clamp, a pulling member, a tensile machine, a posture adjustment assembly, a bracket, a distance sensor and a main controller, the clamp being clamped on the load-bearing terminal of the transformer, the measuring plate being abutted against the load-bearing terminal of the transformer, the clamp, the pulling member, and the load output end of the tensile machine being connected in sequence, the distance sensor being arranged on the bracket, the bracket being arranged on the posture adjustment assembly, the main controller being electrically connected to the control panel, the tensile machine, the posture adjustment assembly and the distance sensor respectively, and the method comprising: The main controller controls the posture adjustment assembly to drive the distance sensor disposed on the bracket to adjust to a specified posture in response to a measurement instruction input by a user from the control panel, so that the distance sensor faces the measurement board; Controlling the load output end of the tensile machine to output a load to the pulling member, so as to drive the clamp to pull the load-bearing terminal of the mutual inductor; and receiving a plurality of first distance data having a time sequence relationship relative to the measuring plate collected by the distance sensor at a preset sampling frequency; After a first preset time, controlling the load output end of the tensile machine to stop outputting the load to the pulling member, so that the clamp stops pulling the load-bearing terminal of the transformer; receiving a plurality of second distance data having a time sequence relationship with respect to the measuring board, which are collected by the distance sensor at a preset sampling frequency within a second preset time period; Based on the multiple first distance data with a time sequence relationship and the multiple second distance data with a time sequence relationship, determine whether there is an abnormality in the mechanical strength of the load-bearing terminals of the transformer; when there is an abnormality in the mechanical strength, output a prompt message indicating that there is an abnormality in the mechanical strength to the control panel for display.

8. The method according to claim 7, characterized in that The determining whether there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer according to the plurality of first distance data having a time sequence relationship and the plurality of second distance data having a time sequence relationship comprises: Determine the displacement stretch difference between the average value of the last N first distance data and the average value of the first N first distance data among the multiple first distance data with a time series relationship, determine the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among the multiple second distance data with a time series relationship, and determine whether the difference in the change amplitude between two adjacent first distance data among the multiple first distance data with a time series relationship is greater than a preset difference threshold, wherein N is an integer greater than or equal to 3; When the displacement stretching difference is greater than the set displacement stretching threshold, the displacement rebound difference is less than the set displacement rebound threshold, and the change amplitude difference is greater than the preset difference threshold, it is determined that there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer.

9. The method according to claim 7, characterized in that: The determining whether there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer according to the plurality of first distance data having a time sequence relationship and the plurality of second distance data having a time sequence relationship comprises: Determine the displacement stretching difference between the average value of the last N first distance data and the average value of the first N first distance data among the plurality of first distance data with a time series relationship, and determine the displacement rebound difference between the average value of the first N second distance data and the average value of the last N second distance data among the plurality of second distance data with a time series relationship, the slope of a first straight line obtained by fitting the plurality of first distance data with a time series relationship, the slope of a second straight line obtained by fitting the plurality of second distance data with a time series relationship, a first normal distribution of the plurality of first distance data with a time series relationship, and a second normal distribution of the plurality of second distance data with a time series relationship; The displacement stretch difference, the displacement rebound difference, the slope of the first straight line, the slope of the second straight line, the first normal distribution and the second normal distribution are input into a pre-trained mechanical strength anomaly recognition model to determine whether there is an abnormality in the mechanical strength of the load-bearing terminal of the transformer, wherein the mechanical strength anomaly recognition model is trained by inputting multiple training samples into the neural network to be trained, each of the training samples includes the historical displacement stretch difference, the historical displacement rebound difference, the slope of the historical first straight line, the slope of the historical second straight line, the historical first normal distribution, the historical second normal distribution and a corresponding label, and the label is used to indicate whether there is an abnormality in the mechanical strength of the load-bearing terminal of the historical transformer.

10. The method according to claim 7, characterized in that The posture adjustment assembly includes a first driving module, a second driving module, a third driving module, a lifting platform, a rotating platform and a displacement platform, wherein the first driving module is connected to the lifting platform, the second driving module is connected to the rotating platform, the third driving module is connected to the displacement platform, a bracket provided with the distance sensor is provided on the displacement platform, the displacement platform is slidably connected to the rotating platform, and the rotating platform is rotatably connected to the lifting platform. The controlling the posture adjustment assembly to drive the distance sensor disposed on the bracket to adjust to a specified posture includes: The first driving module is controlled to drive the lifting platform to lift a preset angle in the vertical direction, so as to drive the rotating platform, the displacement platform and the bracket provided with the distance sensor to lift and lower in the vertical direction; the second driving module is controlled to drive the rotating platform to rotate around a preset angle in the horizontal direction, so as to drive the displacement platform and the bracket provided with the distance sensor to rotate around the horizontal direction; and the third driving module is controlled to drive the displacement platform to slide a preset distance along the rotating platform, so as to drive the bracket provided with the distance sensor to slide in the horizontal direction, so that the distance sensor faces the measuring plate.

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