Method, apparatus and device for monitoring degradation of electromagnetic pulse protection apparatus

Abstract

A method, apparatus and device for monitoring the degradation of an electromagnetic pulse (EMP) protection apparatus. Operation data of at least two parameters of an EMP protection apparatus are monitored, and a curve is fitted on the basis of operation data, so as to obtain the degradation rate of each parameter, thereby avoiding the limitation of single parameter monitoring and improving the reliability; and then, a polynomial model of the parameters changing over time is constructed, and each coefficient of the polynomial model is solved by means of the operation data of the parameter having the fastest degradation rate, so as to obtain a degradation prediction model for the EMP protection apparatus, such that the degree of degradation of the EMP protection apparatus can be predicted on the basis of the degradation prediction model for the EMP protection apparatus. The method is simple and reliable, and solves the technical problem of existing methods for monitoring the degradation of an EMP protection apparatus having limitations and low reliability.

Description

Method, device and equipment for monitoring degradation of electromagnetic pulse protection device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 14, 2023, with application number 202311720265.4 and invention name “A method, device and equipment for monitoring degradation of electromagnetic pulse protection device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the field of electromagnetic protection technology, and in particular to a method, device and equipment for monitoring degradation of an electromagnetic pulse protection device. Background Art

[0003] The main goal of EMP (full name electromagnetic pulse) protection devices is to protect electronic equipment and systems from the effects of EMP. EMP protection devices usually include various protection devices, such as lightning arresters, electromagnetic shielding, overvoltage protectors, etc. These devices can absorb or discharge the energy of electromagnetic pulses, thereby protecting the system from damage. If the protection device in the protection device fails, the protection device will not be able to play a protective role, which may cause the system to be damaged by EMP, and may even cause a fire or circuit short circuit, causing serious harm to personnel and equipment. Therefore, it is necessary to monitor the degradation process of the EMP protection device and predict the fault state of the EMP protection device in advance. The existing EMP protection device degradation monitoring method monitors the degree of degradation of the device by monitoring current data. Single parameter monitoring has limitations and low reliability.

[0004] Summary of the Invention

[0005] The present invention provides a method, device and equipment for monitoring degradation of an electromagnetic pulse protection device, which are used to solve the technical problems of limitations and low reliability of existing methods for monitoring degradation of EMP protection devices.

[0006] In view of this, a first aspect of the present invention provides a method for monitoring degradation of an electromagnetic pulse protection device, comprising:

[0007] Collecting and saving real-time operating data of preset parameters of the EMP protection device, wherein the preset parameters include at least two;

[0008] Fitting a curve showing changes of the preset parameters over time according to the real-time running data of the preset parameters to obtain the slope of the curve;

[0009] Calculating the degradation rate of the EMP protection device under each preset parameter according to the slope of the curve of each preset parameter, wherein the degradation rate of the EMP protection device under each preset parameter is the inverse of the absolute value of the slope of the curve;

[0010] Determine the preset parameter with the fastest deterioration rate, and obtain real-time operating data corresponding to the preset parameter with the fastest deterioration rate;

[0011] An initial polynomial model of the time-varying preset parameters is constructed. The initial polynomial model is fitted using the real-time operating data corresponding to the preset parameter with the fastest degradation rate. The coefficients of the initial polynomial model are solved to obtain a degradation prediction model for the EMP protection device.

[0012] The degradation degree of the EMP protection device is predicted according to the degradation prediction model of the EMP protection device.

[0013] Optionally, the degradation degree of the EMP protection device is predicted according to a degradation prediction model of the EMP protection device, and then the method further includes:

[0014] A time threshold for the degradation degree to reach an alarm line is determined according to a degradation prediction model of the EMP protection device, and when the time threshold is reached, an EMP protection device degradation alarm is issued.

[0015] Optionally, real-time operating data of preset parameters of the EMP protection device is collected and saved, including:

[0016] Collect real-time operating data of preset parameters of EMP protection devices;

[0017] Preprocess the real-time running data of preset parameters, including denoising, data alignment, data interpolation, data normalization and data quality check;

[0018] Save the preprocessed real-time running data.

[0019] Optionally, calculating the degradation rate of the EMP protection device under each preset parameter according to the slope of the curve of each preset parameter includes:

[0020] Perform a significance test on the slope of the curve of each preset parameter to determine whether the significance level P value of the slope of the curve of each preset parameter is less than the preset significance level;

[0021] For preset parameters whose significance level P value is less than the preset significance level, the degradation rate of the EMP protection device is calculated.

[0022] Optionally, the initial polynomial model is: y(t) = a n t n +a n-1 t n-1 +...+a1t+a0;

[0023] Among them, y(t) is the running data of the preset parameters at time t, n is the order, a n 、an-1 , ..., a1, a0 are polynomial coefficients.

[0024] Optionally, the expression of the curve of the preset parameter changing with time is: y(t)=kt+b;

[0025] Where y(t) is the running data of the preset parameters at time t, k is the slope, and b is the intercept.

[0026] A second aspect of the present invention provides an electromagnetic pulse protection device degradation monitoring device, comprising:

[0027] A data acquisition unit, configured to acquire and save real-time operating data of preset parameters of the EMP protection device, wherein the preset parameters include at least two;

[0028] A fitting unit, used for fitting a curve of a preset parameter changing with time according to real-time operation data of the preset parameter to obtain a slope of the curve;

[0029] a degradation rate calculation unit, configured to calculate the degradation rate of the EMP protection device under each preset parameter according to the slope of the curve of each preset parameter, wherein the degradation rate of the EMP protection device under each preset parameter is the inverse of the absolute value of the slope of the curve;

[0030] A screening unit, used to determine the preset parameter with the fastest deterioration rate and obtain real-time operating data corresponding to the preset parameter with the fastest deterioration rate;

[0031] A prediction model building unit is used to build an initial polynomial model of the preset parameters with respect to time changes, fit the initial polynomial model using the real-time operating data corresponding to the preset parameters with the fastest degradation rate, solve the coefficients of the initial polynomial model, and obtain a degradation prediction model for the EMP protection device;

[0032] The degradation analysis unit is used to predict the degradation degree of the EMP protection device according to the degradation prediction model of the EMP protection device.

[0033] Optionally, it also includes:

[0034] The alarm unit is used to determine a time threshold at which the degradation degree reaches an alarm line according to a degradation prediction model of the EMP protection device, and to issue an EMP protection device degradation alarm when the time threshold is reached.

[0035] Optionally, the data acquisition unit is specifically used to:

[0036] Collect real-time operating data of preset parameters of EMP protection devices;

[0037] Preprocess the real-time running data of preset parameters, including denoising, data alignment, data interpolation, data normalization and data quality check;

[0038] Save the preprocessed real-time running data.

[0039] A third aspect of the present invention provides an electromagnetic pulse protection device degradation monitoring device, the device comprising a processor and a memory:

[0040] The memory is used to store program code and transmit the program code to the processor;

[0041] The processor is used to execute the electromagnetic pulse protection device degradation monitoring method described in any one of the first aspects according to the instructions in the program code.

[0042] From the above technical solutions, it can be seen that the electromagnetic pulse protection device degradation monitoring method provided by the present invention has the following advantages:

[0043] The electromagnetic pulse protection device degradation monitoring method provided by the present invention monitors at least two or more parameter operating data of the EMP protection device, obtains the degradation rate of each parameter based on a curve fitting of the operating data, avoids the limitations of single parameter monitoring and improves reliability. Then, a polynomial model of the parameter variation with respect to time is constructed, and each coefficient of the polynomial model is solved using the operating data of the parameter with the fastest degradation rate to obtain a degradation prediction model of the EMP protection device. Thus, the degradation degree of the EMP protection device can be predicted based on the degradation prediction model of the EMP protection device. The method is simple and reliable, and solves the technical problems of limitations and low reliability of existing EMP protection device degradation monitoring methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] 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 related drawings can be obtained based on these drawings without paying any creative work.

[0045] FIG1 is a schematic flow chart of a method for monitoring degradation of an electromagnetic pulse protection device provided in an embodiment of the present invention;

[0046] FIG2 is a schematic structural diagram of a device for monitoring degradation of an electromagnetic pulse protection device provided in an embodiment of the present invention;

[0047] FIG3 is a schematic structural diagram of an electromagnetic pulse protection device degradation monitoring device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0049] For ease of understanding, please refer to FIG1 . The present invention provides an embodiment of a method for monitoring degradation of an electromagnetic pulse protection device, comprising:

[0050] Step 101: Collect and save real-time operating data of preset parameters of an EMP protection device, wherein there are at least two preset parameters.

[0051] It should be noted that in the present invention, real-time data of the preset parameters of the EMP protection device is first collected, including at least two preset parameter data such as voltage data, current data, and temperature data. To ensure the accuracy of data analysis, the real-time operating data of the preset parameters must be preprocessed. This preprocessing includes denoising, data alignment, data interpolation, data normalization, and data quality inspection. The preprocessed real-time operating data is then stored.

[0052] Step 102: Fit a curve of the preset parameters changing over time based on the real-time operating data of the preset parameters to obtain the slope of the curve.

[0053] It should be noted that, based on the saved operating data of the preset parameters, a trend analysis algorithm is used to analyze the changes of different parameters over time, and a curve of the preset parameters changing over time is fitted based on the real-time operating data of the preset parameters. The expression of the curve of the preset parameters changing over time is: y(t)=kt+b;

[0054] Where y(t) is the running data of the preset parameters at time t, k is the slope, and b is the intercept.

[0055] By performing a linear regression on the operating data for each parameter, the slope k can be estimated. If the slope k is significantly different from zero, it indicates that the parameter has changed over time, which can help determine which parameters may be deteriorating. The positive or negative slope indicates whether the parameter is increasing or decreasing.

[0056] For the slope k of the curve of each parameter, a statistical method such as a t-test or an F-test can be used to perform a significance test to determine whether the significance level P value of the slope of the curve of each preset parameter is less than the preset significance level. For preset parameters whose significance level P value is less than the preset significance level, it is considered that the slope k is significantly non-zero and there is a trend. The degradation rate of the EMP protection device can be calculated based on the slope.

[0057] Step 103: Calculate the degradation rate of the EMP protection device under each preset parameter according to the slope of the curve of each preset parameter, wherein the degradation rate of the EMP protection device under each preset parameter is the inverse of the absolute value of the slope of the curve.

[0058] It should be noted that the degradation rate of the EMP protection device under each preset parameter is the inverse of the absolute value of the slope of the curve of each preset parameter, that is:

[0059] Where D is the degradation rate.

[0060] Because the degradation rate D represents the rate of change of the parameter per unit time, and the slope k represents the amount of change of the parameter per unit time, the degradation rate D can be obtained by taking the inverse of the slope k.

[0061] According to the degradation rate D, it is possible to determine which parameters have obvious trend changes in the EMP protection device, which is helpful for further degradation monitoring and maintenance decision-making.

[0062] Step 104: Determine the preset parameter with the fastest degradation rate, and obtain real-time operating data corresponding to the preset parameter with the fastest degradation rate.

[0063] It should be noted that the greater the degradation rate D, the faster the parameter degrades. Therefore, the preset parameter with the fastest degradation rate can be determined, and the real-time operating data corresponding to the preset parameter with the fastest degradation rate can be extracted from the saved data for subsequent model solution.

[0064] Step 105: construct an initial polynomial model of the preset parameters with respect to time variation, fit the initial polynomial model using the real-time operating data corresponding to the preset parameter with the fastest degradation rate, solve each coefficient of the initial polynomial model, and obtain a degradation prediction model for the EMP protection device.

[0065] It should be noted that the initial polynomial model of the preset parameters with respect to time variation is first constructed, which can be expressed as: y(t) = a n t n +a n-1 t n-1 +...+a1t+a0;

[0066] Among them, y(t) is the running data of the preset parameters at time t, n is the order, a n 、a n-1 , ..., a1, a0 are polynomial coefficients.

[0067] Substitute the real-time operating data corresponding to the preset parameter with the fastest degradation rate into the initial polynomial model to solve the polynomial coefficient a in the initial polynomial model. n 、a n-1 , ..., a1, a0. Thus, the degradation prediction model of the EMP protection device is obtained.

[0068] Step 106: Predict the degradation degree of the EMP protection device according to the degradation prediction model of the EMP protection device.

[0069] It should be noted that after obtaining the degradation prediction model of the EMP protection device, the degradation prediction model of the EMP protection device can be used to predict the parameter operation data of the EMP protection device at a future time, thereby determining the degradation degree of the EMP protection device.

[0070] The electromagnetic pulse protection device degradation monitoring method provided by the present invention monitors at least two or more parameter operating data of the EMP protection device, obtains the degradation rate of each parameter based on a curve fitting of the operating data, avoids the limitations of single parameter monitoring and improves reliability. Then, a polynomial model of the parameter variation with respect to time is constructed, and each coefficient of the polynomial model is solved using the operating data of the parameter with the fastest degradation rate to obtain a degradation prediction model of the EMP protection device. Thus, the degradation degree of the EMP protection device can be predicted based on the degradation prediction model of the EMP protection device. The method is simple and reliable, and solves the technical problems of limitations and low reliability of existing EMP protection device degradation monitoring methods.

[0071] In one embodiment, step 106 may further include:

[0072] Step 107: Determine a time threshold for the degradation degree to reach an alarm line according to the degradation prediction model of the EMP protection device, and issue an EMP protection device degradation alarm when the time threshold is reached.

[0073] It should be noted that, based on the degradation prediction model of the EMP protection device, the time when the preset parameters of the EMP protection device reach the fault value can be determined. Therefore, the time threshold when the degradation degree reaches the alarm line can be determined based on the degradation prediction model of the EMP protection device. When the time threshold is reached, the EMP protection device degradation alarm is issued to remind maintenance personnel to take appropriate maintenance measures, such as replacing damaged parts or performing calibration.

[0074] For ease of understanding, please refer to FIG2 . The present invention provides an embodiment of an electromagnetic pulse protection device degradation monitoring device, including:

[0075] A data acquisition unit, configured to acquire and save real-time operating data of preset parameters of the EMP protection device, wherein the preset parameters include at least two;

[0076] A fitting unit, used for fitting a curve of a preset parameter changing with time according to real-time operation data of the preset parameter to obtain a slope of the curve;

[0077] a degradation rate calculation unit, configured to calculate the degradation rate of the EMP protection device under each preset parameter according to the slope of the curve of each preset parameter, wherein the degradation rate of the EMP protection device under each preset parameter is the inverse of the absolute value of the slope of the curve;

[0078] A screening unit, used to determine the preset parameter with the fastest deterioration rate and obtain real-time operating data corresponding to the preset parameter with the fastest deterioration rate;

[0079] A prediction model building unit is used to build an initial polynomial model of the preset parameters with respect to time changes, fit the initial polynomial model using the real-time operating data corresponding to the preset parameters with the fastest degradation rate, solve the coefficients of the initial polynomial model, and obtain a degradation prediction model for the EMP protection device;

[0080] The degradation analysis unit is used to predict the degradation degree of the EMP protection device according to the degradation prediction model of the EMP protection device.

[0081] Also includes:

[0082] The alarm unit is used to determine a time threshold at which the degradation degree reaches an alarm line according to a degradation prediction model of the EMP protection device, and to issue an EMP protection device degradation alarm when the time threshold is reached.

[0083] The data acquisition unit is specifically used for:

[0084] Collect real-time operating data of preset parameters of EMP protection devices;

[0085] Preprocess the real-time running data of preset parameters, including denoising, data alignment, data interpolation, data normalization and data quality check;

[0086] Save the preprocessed real-time running data.

[0087] The degradation rate of the EMP protection device under each preset parameter is calculated based on the slope of the curve of each preset parameter, including:

[0088] Perform a significance test on the slope of the curve of each preset parameter to determine whether the significance level P value of the slope of the curve of each preset parameter is less than the preset significance level;

[0089] For preset parameters whose significance level P value is less than the preset significance level, the degradation rate of the EMP protection device is calculated.

[0090] The initial polynomial model is: y(t) = a n t n +a n-1 t n-1 +...+a1t+a0;

[0091] Among them, y(t) is the running data of the preset parameters at time t, n is the order, a n 、a n-1 , ..., a1, a0 are polynomial coefficients.

[0092] The expression of the curve of the preset parameter changing with time is: y(t)=kt+b;

[0093] Where y(t) is the running data of the preset parameters at time t, k is the slope, and b is the intercept.

[0094] For ease of understanding, please refer to FIG3 . The present invention provides an embodiment of an electromagnetic pulse protection device degradation monitoring device, wherein the device includes a processor and a memory.

[0095] The memory is used to store program code and transmit the program code to the processor;

[0096] The processor is used to execute the electromagnetic pulse protection device degradation monitoring method described in the present invention according to the instructions in the program code.

[0097] The electromagnetic pulse protection device degradation monitoring device and equipment provided in the present invention are used to execute the electromagnetic pulse protection device degradation monitoring method provided in the present invention. Its principles and technical effects are the same as those of the electromagnetic pulse protection device degradation monitoring method provided in the present invention, and will not be repeated here.

[0098] 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 monitoring degradation of an electromagnetic pulse protection device, characterized in that: include: Collecting and saving real-time operating data of preset parameters of the EMP protection device, wherein the preset parameters include at least two; Fitting a curve of the preset parameters changing over time according to the real-time running data of the preset parameters to obtain the slope of the curve; Calculating the degradation rate of the EMP protection device under each preset parameter according to the slope of the curve of each preset parameter, wherein the degradation rate of the EMP protection device under each preset parameter is the inverse of the absolute value of the slope of the curve; Determine the preset parameter with the fastest deterioration speed, and obtain the real-time operation data corresponding to the preset parameter with the fastest deterioration speed; An initial polynomial model of the preset parameters changing with time is constructed, the real-time operation data corresponding to the preset parameters with the fastest degradation rate is used to fit the initial polynomial model, and the coefficients of the initial polynomial model are solved to obtain the degradation prediction model of the EMP protection device; The degradation degree of the EMP protection device is predicted according to the degradation prediction model of the EMP protection device.

2. The method for monitoring degradation of an electromagnetic pulse protection device according to claim 1, characterized in that: The degradation degree of the EMP protection device is predicted according to the degradation prediction model of the EMP protection device, and then the following is included: The time threshold at which the degradation degree reaches the alarm line is determined according to the degradation prediction model of the EMP protection device, and when the time threshold is reached, the EMP protection device degradation alarm is issued.

3. The method for monitoring degradation of an electromagnetic pulse protection device according to claim 1, characterized in that: Collect and save the real-time operating data of the preset parameters of the EMP protection device, including: Collect real-time operating data of preset parameters of EMP protection devices; Preprocess the real-time running data of preset parameters, including denoising, data alignment, data interpolation, data normalization and data quality check; The preprocessed real-time running data is saved.

4. The method for monitoring degradation of an electromagnetic pulse protection device according to claim 1, characterized in that: The degradation rate of the EMP protection device under each preset parameter is calculated according to the slope of the curve of each preset parameter, including: Perform a significance test on the slope of the curve of each preset parameter to determine whether the significance level P value of the slope of the curve of each preset parameter is less than the preset significance level; For preset parameters whose significance level P value is less than the preset significance level, the degradation rate of the EMP protection device is calculated.

5. The method for monitoring degradation of an electromagnetic pulse protection device according to claim 1, characterized in that: The initial polynomial model is: y(t) = a n t n +a n-1 t n-1 +...+a1t+a0; Among them, y(t) is the running data of the preset parameters at time t, n is the order, a n 、a n-1 , ..., a1, a0 are polynomial coefficients.

6. The method for monitoring degradation of an electromagnetic pulse protection device according to claim 1, characterized in that: The expression of the curve of the preset parameter changing with time is: y(t)=kt+b; Among them, y(t) is the operating data of the preset parameters at time t, k is the slope, and b is the intercept.

7. An electromagnetic pulse protection device degradation monitoring device, characterized in that: include: A data acquisition unit, used to collect and save real-time operating data of preset parameters of the EMP protection device, wherein the preset parameters are at least two; A fitting unit, used for fitting a curve of a preset parameter changing with time according to real-time operation data of the preset parameter, to obtain a slope of the curve; A degradation rate calculation unit, used to calculate the degradation rate of the EMP protection device under each preset parameter according to the slope of the curve of each preset parameter, wherein the degradation rate of the EMP protection device under each preset parameter is the inverse of the absolute value of the slope of the curve; A screening unit, used to determine the preset parameter with the fastest deterioration speed, and obtain real-time operation data corresponding to the preset parameter with the fastest deterioration speed; A prediction model building unit is used to build an initial polynomial model of preset parameters with respect to time changes, fit the initial polynomial model with real-time operation data corresponding to the preset parameters with the fastest degradation rate, solve various coefficients of the initial polynomial model, and obtain a degradation prediction model of the EMP protection device; Degradation analysis unit, used to analyze the EMP protection device based on the degradation prediction model of the EMP protection device The degradation degree of the device is predicted.

8. The electromagnetic pulse protection device degradation monitoring device according to claim 7, characterized in that: Also includes: The alarm unit is used to determine the time threshold when the degradation degree reaches the alarm line according to the degradation prediction model of the EMP protection device, and issue the EMP protection device degradation alarm when the time threshold is reached.

9. The electromagnetic pulse protection device degradation monitoring device according to claim 7, characterized in that: The data acquisition unit is specifically used for: Collect real-time operating data of preset parameters of EMP protection devices; Preprocess the real-time running data of preset parameters, including denoising, data alignment, data interpolation, data normalization and data quality check; The preprocessed real-time running data is saved.

10. An electromagnetic pulse protection device degradation monitoring device, characterized in that: The device comprises a processor and a memory: The memory is used to store program code and transmit the program code to the processor; The processor is used to execute the electromagnetic pulse protection device degradation monitoring method described in any one of claims 1-6 according to the instructions in the program code.

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