Voltage calibration method of insulating property detection device and terminal

Abstract

The invention discloses a voltage calibration method of an insulating property detection device and a terminal. The method comprises the following steps: acquiring an actual voltage of a transformer, and determining a voltage interval to which the actual voltage belongs; obtaining historical calibration data corresponding to the voltage interval in the transformer, and calculating a current calibration factor according to the historical calibration data; the actual voltage is updated according to the current calibration factor to obtain a standard voltage, the output voltage of the transformer is controlled based on the standard voltage, and the output voltage is used for testing the insulating performance of the insulating gloves or the insulating shoes; and marking the standard voltage and the current calibration factor as historical calibration data. According to the invention, the output voltage of the device can be automatically calibrated, so that the detection accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of voltage calibration, and in particular to a voltage calibration method and a terminal for an insulation performance detection device. Background Art

[0002] Insulating gloves and insulating shoes are important protective equipment in the field of electrical safety, and the accuracy of their insulation performance is crucial. However, the traditional insulation performance testing method mainly relies on manual operation, which is not only time-consuming and labor-intensive, but also easily affected by human factors, making it difficult to ensure the accuracy and reliability of the test results.

[0003] With the advancement of science and technology, some insulation performance detection and control software have gradually appeared on the market. These software have improved the degree of automation of detection to a certain extent through the voltage rise and fall control and current identification functions. However, these detection and control software still have great limitations in automation. Specifically, with the frequent use of the detection device, its accuracy may gradually decrease due to wear or environmental factors (such as temperature, humidity, etc.). Since the detection system is not equipped with automatic calibration and accuracy correction functions, it is difficult for the device to maintain its original accuracy after long-term use. This not only increases maintenance costs, but may also affect the accuracy of the test results due to untimely calibration. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a voltage calibration method and a terminal for an insulation performance detection device, which can automatically calibrate the output voltage of the device, thereby improving the detection accuracy.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: A voltage calibration method for an insulation performance detection device, comprising: Obtaining an actual voltage of the transformer, and determining a voltage interval to which the actual voltage belongs; Acquire historical calibration data corresponding to the voltage interval in the transformer, and calculate a current calibration factor according to the historical calibration data; updating the actual voltage according to the current calibration factor to obtain a standard voltage, so as to control the output voltage of the transformer based on the standard voltage, wherein the output voltage is used to perform insulation performance testing on insulating gloves or insulating footwear; The standard voltage and the current calibration factor are marked as historical calibration data.

[0006] In order to solve the above technical problems, another technical solution adopted by the present invention is: A voltage calibration terminal for an insulation performance detection device comprises a memory, a processor and a computer program stored in the memory and running on the processor. When the processor executes the computer program, each step of the voltage calibration method for an insulation performance detection device is implemented.

[0007] The beneficial effects of the present invention are: by obtaining the actual voltage of the transformer and determining the voltage range to which it belongs, and then calculating the current calibration factor based on the historical calibration data corresponding to the voltage range, the actual voltage is updated to obtain the standard voltage to control the output voltage of the transformer. Based on this method, the calibration factor of the voltage can be adjusted dynamically according to the actual operation of the transformer to ensure the accuracy of the voltage output. Since the calibration factor is calculated based on the historical calibration data of the transformer itself, this dynamic calibration mechanism can adapt to changes in the operating state of the transformer and reduce measurement errors caused by environmental factors or device aging. At the same time, by recording the calibration data of the device transformer each time, a reliable basis is provided for subsequent maintenance and calibration, thereby improving the stability and reliability of the device. This method not only improves the accuracy of the voltage output, but also enhances the adaptability of the transformer in different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A flowchart of a voltage calibration method for an insulation performance detection device provided by an embodiment of the present invention; Figure 2 A schematic diagram of a test interface of an insulation performance testing device for insulating gloves provided by an embodiment of the present invention; Figure 3 A test flow chart of an insulation performance detection device provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a voltage calibration terminal of an insulation performance detection device provided by an embodiment of the present invention; Description of labels: 100. A voltage calibration terminal of an insulation performance detection device; 101. A memory; 102. A processor. DETAILED DESCRIPTION

[0009] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0010] An embodiment of the present invention provides a voltage calibration method for an insulation performance detection device, comprising: Obtaining an actual voltage of the transformer, and determining a voltage interval to which the actual voltage belongs; Acquire historical calibration data corresponding to the voltage interval in the transformer, and calculate a current calibration factor according to the historical calibration data; updating the actual voltage according to the current calibration factor to obtain a standard voltage, so as to control the output voltage of the transformer based on the standard voltage, wherein the output voltage is used to perform insulation performance testing on insulating gloves or insulating footwear; The standard voltage and the current calibration factor are marked as historical calibration data.

[0011] As can be seen from the above description, the beneficial effects of the present invention are: by obtaining the actual voltage of the transformer and determining the voltage range to which it belongs, and then calculating the current calibration factor based on the historical calibration data corresponding to the voltage range, the actual voltage is updated to obtain the standard voltage to control the output voltage of the transformer. Based on this method, the calibration factor of the voltage can be adjusted dynamically according to the actual operation of the transformer to ensure the accuracy of the voltage output. Since the calibration factor is calculated based on the historical calibration data of the transformer itself, this dynamic calibration mechanism can adapt to changes in the operating state of the transformer and reduce measurement errors caused by environmental factors or device aging. At the same time, by recording the calibration data of the device transformer each time, a reliable basis is provided for subsequent maintenance and calibration, thereby improving the stability and reliability of the device. This method not only improves the accuracy of the voltage output, but also enhances the adaptability of the transformer in different usage scenarios.

[0012] Further, the historical calibration data includes a plurality of historical voltages within a preset time period and a historical calibration factor corresponding to each of the historical voltages; Calculating the current calibration factor based on the historical calibration data includes: Calculate the calibration weight of the historical calibration factor corresponding to each of the historical voltages respectively according to each of the historical voltages; A current calibration factor is calculated according to all the calibration weights and the historical calibration factors within the preset time period.

[0013] From the above description, it can be seen that by calculating the calibration weight of each historical voltage and calculating the current calibration factor according to all calibration weights and historical calibration factors, the voltage output characteristics of the transformer can be more accurately reflected, and the accuracy and adaptability of the calibration can be further improved.

[0014] Further, calculating the calibration weight of the historical calibration factor corresponding to each of the historical voltages respectively according to each of the historical voltages includes: Obtaining a target voltage that the transformer needs to output, and respectively calculating a historical voltage error between each of the historical voltages and the target voltage; The calibration weight of the historical calibration factor corresponding to each of the historical voltages is calculated respectively according to the historical voltage error of each of the historical voltages.

[0015] From the above description, it can be seen that by obtaining the target voltage that the transformer is ultimately expected to output, and calculating the historical voltage errors between each historical voltage and the target voltage respectively, and then calculating the calibration weight of each historical calibration factor based on the historical voltage errors, the effectiveness of the historical calibration factors can be evaluated more accurately, thereby more accurately calculating the current calibration factors and improving the accuracy and reliability of the calibration.

[0016] Further, respectively calculating the calibration weight of the historical calibration factor corresponding to each of the historical voltages according to the historical voltage error of each of the historical voltages includes: ; Among them, w j represents the calibration weight of the jth historical calibration factor, E ihist,j represents the historical voltage error of the j-th historical voltage in voltage interval i, and ε represents the preset error tolerance; Calculating the current calibration factor according to all the calibration weights and the historical calibration factors within the preset time period includes: ; Among them, K i,base represents the current calibration factor for voltage interval i, k ihist,j Represents the jth historical calibration factor for voltage interval i.

[0017] From the above description, it can be seen that by calculating the calibration weight of the corresponding historical calibration factor for each historical voltage error, the actual impact of each calibration factor under specific voltage conditions can be more accurately reflected, thereby significantly improving the accuracy of calibration. By introducing a preset error tolerance, the calibration process can tolerate a certain degree of voltage error fluctuation, avoiding excessive adjustments due to minor errors, and enhancing the robustness and reliability of calibration. In addition, the current calibration factor fully considers all historical calibration factors and calibration weights within a preset time period, reduces the error caused by a single data point, makes the calculation of the current calibration factor more accurate and reliable, and makes full use of historical data to effectively enhance the stability of the calibration system.

[0018] Furthermore, after calculating the current calibration factor according to all the calibration weights and the historical calibration factors within the preset time period, the method further includes: Acquiring environmental parameters corresponding to the actual voltage; The current calibration factor is compensated and corrected according to the environmental parameter to obtain a corrected current calibration factor.

[0019] From the above description, it can be seen that after calculating the current calibration factor based on the calibration weights and historical calibration factors within a preset time period, the environmental parameters corresponding to the actual voltage are obtained, and the current calibration factor is compensated and corrected based on these environmental parameters. This can fully take into account the influence of environmental factors, further improve the accuracy and adaptability of the calibration, and ensure that the test device can maintain high precision under different environmental conditions.

[0020] Furthermore, the environmental parameters include ambient temperature and ambient humidity; Compensating and correcting the current calibration factor according to the environmental parameter to obtain a corrected current calibration factor includes: Determine a compensation function according to the ambient temperature and the ambient humidity: g(P)=b1T+b2H; Wherein, b1 represents the temperature compensation coefficient, b2 represents the humidity compensation coefficient, T represents the ambient temperature, and H represents the ambient humidity; The current calibration factor is compensated and corrected according to the compensation function to obtain a corrected current calibration factor: K i =K i,base +g(P); Among them, K i Indicates the corrected current calibration factor, K i,base Indicates the current calibration factor before correction.

[0021] From the above description, it can be seen that by determining the compensation function g(P) and compensating and correcting the current calibration factor according to the ambient temperature and ambient humidity, the impact of the environment on the transformer voltage output can be more accurately reflected, thereby more accurately calibrating the output voltage and improving the accuracy and reliability of the test device.

[0022] Furthermore, before obtaining the actual voltage of the transformer, the method further includes: The target voltage that the transformer needs to output is obtained, and a plurality of voltage intervals are determined according to different percentage intervals of the target voltage.

[0023] From the above description, it can be seen that before obtaining the actual voltage of the transformer, the target voltage of the transformer is first obtained, and multiple voltage intervals are determined according to different percentage intervals of the target voltage. This can divide the voltage intervals more finely, thereby more accurately evaluating the voltage output characteristics of each voltage interval and providing more accurate data support for subsequent calibration.

[0024] Further, updating the actual voltage according to the current calibration factor to obtain the standard voltage includes: Update the actual voltage according to the current calibration factor to obtain a calibration voltage; Detecting whether a voltage error between the calibration voltage and the target voltage is less than a preset error tolerance; If so, the calibration voltage is determined as the standard voltage.

[0025] From the above description, it can be seen that the calibration voltage is obtained by updating the actual voltage according to the current calibration factor, and detecting whether the voltage error between the calibration voltage and the target voltage is less than the preset error tolerance. If so, the calibration voltage is determined as the standard voltage, which can ensure that the calibrated voltage output is consistent with the target voltage, thereby improving the accuracy and reliability of the test device.

[0026] Furthermore, it also includes: If it is detected that the transformer does not have the historical calibration data, a manually input default calibration factor is obtained, and the actual voltage is updated according to the default calibration factor to obtain a standard voltage, so as to control the output voltage of the transformer based on the standard voltage.

[0027] From the above description, it can be seen that if it is detected that there is no historical calibration data for the transformer, a manually input default calibration factor is obtained, and the actual voltage is updated according to the default calibration factor to obtain the standard voltage. This can ensure that in the absence of historical calibration data, such as when the transformer is calibrated for the first time, the test device can still perform accurate voltage output calibration, thereby improving the flexibility and usability of the device.

[0028] Another embodiment of the present invention provides a voltage calibration terminal for an insulation performance detection device, including a memory, a processor, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, each step of the above-mentioned voltage calibration method for an insulation performance detection device is implemented.

[0029] As can be seen from the above description, the beneficial effects of the present invention are: by obtaining the actual voltage of the transformer and determining the voltage range to which it belongs, and then calculating the current calibration factor based on the historical calibration data corresponding to the voltage range, the actual voltage is updated to obtain the standard voltage to control the output voltage of the transformer. Based on this method, the calibration factor of the voltage can be adjusted dynamically according to the actual operation of the transformer to ensure the accuracy of the voltage output. Since the calibration factor is calculated based on the historical calibration data of the transformer itself, this dynamic calibration mechanism can adapt to changes in the operating state of the transformer and reduce measurement errors caused by environmental factors or device aging. At the same time, by recording the calibration data of the device transformer each time, a reliable basis is provided for subsequent maintenance and calibration, thereby improving the stability and reliability of the device. This method not only improves the accuracy of the voltage output, but also enhances the adaptability of the transformer in different usage scenarios.

[0030] A voltage calibration method and terminal of an insulation performance detection device of the present invention can be applied to an automatic insulation performance detection device of insulating gloves and insulating shoes and boots, and can automatically calibrate the output voltage of the device, thereby improving the accuracy of the detection. The following is an explanation through specific implementation methods: Please refer to Figures 1 to 3 , Embodiment 1 of the present invention is: A voltage calibration method for an insulation performance detection device, comprising: S1. Obtain the actual voltage of the transformer, and determine the voltage interval to which the actual voltage belongs.

[0031] Specifically, before step S1, the method further includes: S101. Obtain a target voltage that a transformer needs to output, and determine a plurality of voltage intervals according to different percentage intervals of the target voltage.

[0032] In some embodiments, the target voltage V_target is divided into 10 voltage intervals according to different percentage intervals. The 10 voltage intervals are [0, 10% V_target), [10% V_target, 20% V_target), [20% V_target, 30% V_target), and so on until [90% V_target, 100% V_target]. Specifically, in order to better distinguish different voltage intervals, the 10 voltage intervals can be represented by i in turn, i=1, 2, 3, ..., 10, then the i-th voltage interval is represented as [(i-1) / 10×V_target, i / 10×V_target].

[0033] S2, obtaining historical calibration data corresponding to the voltage range in the transformer, and calculating a current calibration factor according to the historical calibration data, wherein the historical calibration data includes a plurality of historical voltages within a preset time period and a historical calibration factor corresponding to each of the historical voltages.

[0034] In some embodiments, the historical calibration data also includes a storage timestamp of each historical voltage, and multiple historical voltages within a preset time period are determined based on the storage timestamp. A time window restriction mechanism is used when acquiring historical calibration data, that is, only the historical calibration data of the most recent month within the voltage interval can be acquired, to avoid errors in calibration factor calculation caused by introducing early voltages of the transformer.

[0035] Specifically, calculating the current calibration factor according to the historical calibration data in step S2 includes: S21. Calculate, according to each of the historical voltages, a calibration weight of a historical calibration factor corresponding to each of the historical voltages.

[0036] Specifically, step S21 includes: S211, obtaining a target voltage that the transformer needs to output, and respectively calculating a historical voltage error between each of the historical voltages and the target voltage.

[0037] In some embodiments, since the voltage after calibration with the current calibration factor needs to calculate the voltage error with the target voltage so that the voltage error can be verified through a preset error tolerance, after the standard voltage is obtained through verification, the voltage error, the standard voltage and the current calibration factor can be directly stored as historical calibration data so that the voltage error can be directly obtained for subsequent calculation of the calibration weight.

[0038] S212: Calculate the calibration weight of the historical calibration factor corresponding to each of the historical voltages according to the historical voltage error of each of the historical voltages.

[0039] In an optional implementation, step S212 is specifically: ; Among them, w j represents the calibration weight of the jth historical calibration factor, E ihist,j represents the historical voltage error of the j-th historical voltage in voltage interval i, and ε represents a preset error tolerance.

[0040] S22: Calculate a current calibration factor according to all the calibration weights and the historical calibration factors within the preset time period.

[0041] In an optional implementation, step S22 is specifically: ; Among them, K i,base represents the current calibration factor for voltage interval i, k ihist,j Represents the jth historical calibration factor for voltage interval i.

[0042] In an optional embodiment, the method further includes: S201. If it is detected that the transformer does not have the historical calibration data, obtain a manually input default calibration factor, and update the actual voltage according to the default calibration factor to obtain a standard voltage, so as to control the output voltage of the transformer based on the standard voltage.

[0043] In some embodiments, a default calibration factor is set corresponding to each voltage interval, so as to perform accurate calibration according to the error between the actual voltage and the target voltage.

[0044] Specifically, after step S22, the method further includes: S301: Acquire environmental parameters corresponding to the actual voltage.

[0045] S302: Compensate and correct the current calibration factor according to the environmental parameter to obtain a corrected current calibration factor, wherein the environmental parameter includes environmental temperature and environmental humidity.

[0046] Specifically, step S302 includes: S3021: Determine a compensation function according to the ambient temperature and the ambient humidity, specifically: g(P)=b1T+b2H; Wherein, b1 represents the temperature compensation coefficient, b2 represents the humidity compensation coefficient, T represents the ambient temperature, and H represents the ambient humidity. The temperature compensation coefficient and the humidity compensation coefficient are preset parameters obtained through multiple experiments.

[0047] S3022: Compensate and correct the current calibration factor according to the compensation function to obtain a corrected current calibration factor, specifically: K i =K i,base +g(P); Among them, K i Indicates the corrected current calibration factor, K i,base Indicates the current calibration factor before correction.

[0048] S3. Update the actual voltage according to the current calibration factor to obtain a standard voltage, so as to control the output voltage of the transformer based on the standard voltage, and the output voltage is used to test the insulation performance of insulating gloves or insulating shoes.

[0049] Specifically, step S3 includes: S31. Update the actual voltage according to the current calibration factor to obtain a calibration voltage.

[0050] S32: Detect whether a voltage error between the calibration voltage and the target voltage is less than a preset error tolerance; if so, determine the calibration voltage as a standard voltage.

[0051] S4. Mark the standard voltage and the current calibration factor as historical calibration data.

[0052] In some embodiments, the standard voltage, voltage error, and current calibration factor are stored in a preset database, and the standard voltage, voltage error, and current calibration factor are marked as historical calibration data. Specifically, the historical calibration data in the preset database is stored in bins according to voltage intervals. For example, V represents the historical voltage, K represents the historical calibration factor, and E represents the historical voltage error. Then the preset database D={(V i ,Ki ,E i )|i=1,2,3,…,10}, i represents different voltage intervals.

[0053] In some embodiments, when the voltage calibration method of the above-mentioned insulation performance detection device is used to test the insulation performance of insulating gloves, the specific workflow of the device automatically correcting the output voltage for insulation performance testing is: obtaining test data such as the target voltage, the limit value of the leakage current, and the test time for testing the performance of the insulating gloves, and generating corresponding operation instructions based on the test data. First, a first operation instruction is sent to the transformer. The first operation instruction is used to instruct the transformer to adjust the output voltage to the target voltage. During the process of the transformer executing the first operation instruction, the accuracy of the output voltage of the transformer is controlled based on the voltage calibration method of the above-mentioned insulation performance detection device to avoid a large error between the output voltage of the transformer and the target voltage. When the transformer completes the first operation instruction, that is, the transformer outputs the calibrated standard voltage, the transformer is set to maintain a certain test time at the current standard voltage to perform insulation performance testing on the insulating gloves. The leakage current of the insulating gloves during the test time is obtained, and it is determined whether the leakage current exceeds the limit value. If the leakage current of a certain insulating glove exceeds the limit value, the test operation of the insulating glove is stopped. After all insulating gloves have been tested, a second operation instruction is sent to the transformer. The second operation instruction is used to instruct the transformer to drop the voltage to stop the test. Figure 2 As shown, an example of the operation interface design of an insulation performance testing device is displayed. 1# to 12# represent the test position numbers of the insulating gloves. The test voltage is the target voltage, the breaking current is the limit value of the leakage current, and the withstand voltage time is the test time. The speed of voltage regulation represents the step size of the voltage regulation. Fast voltage regulation indicates a larger step, and slow voltage regulation indicates a smaller step.

[0054] In some embodiments, Figure 3As shown, the overall workflow of the insulation performance testing device during the insulation performance test is specifically as follows: 1. Identify the relevant information of the sample to be tested; 2. Obtain the target voltage, leakage current limit value and test time of the sample to be tested, and at the same time start the water injection mechanism or steel ball loading mechanism of the device to realize automatic water injection or steel ball loading; 3. Obtain the injection water level of the sample to be tested through the water level detection module of the device, and judge whether the water level reaches the preset test water level; 4. If the preset test water level is reached, send a lifting control instruction to control the downward displacement through the lifting mechanism of the device; 5. Obtain the lifting position of the sample to be tested through the stroke sensor of the device, and judge whether the sample to be tested has reached the test position; 6. If it reaches the test position, send a transformer boost instruction to output the target voltage through the transformer of the device. In this process, the output voltage of the transformer is automatically corrected based on the voltage calibration method of the insulation performance testing device of the present invention; 7. If the output voltage of the transformer reaches the target voltage, send a timing instruction, and maintain the current output voltage of the transformer. Output voltage to test the insulation performance of the tested sample; 8. Obtain the leakage current data of each tested sample through the circuit module of the device and display it on the data interface of the device; 9. Perform analysis and processing based on the obtained leakage current data to determine whether the leakage current of the tested sample exceeds the limit value; 10. If it exceeds the limit value, regardless of whether the test time is reached, stop the test immediately, disconnect the tested sample from the transformer, and perform alarm processing; 11. If it does not exceed the limit value, after the test time is reached, save the leakage current data and the target voltage to the relevant database, and send a transformer step-down instruction to step down the transformer to determine whether the transformer voltage drops to 0kV; 12. If the transformer drops to 0kV, send a lifting control instruction to perform lifting displacement control through the lifting mechanism of the device; 13. Obtain the lifting position of the tested sample through the stroke sensor of the device to determine whether the tested sample has reached the sampling position; 14. If it has reached the sampling position, send a stop test instruction and print a test report.

[0055] Please refer to Figure 4 , Embodiment 2 of the present invention is: A voltage calibration terminal 100 for an insulation performance detection device includes a memory 101, a processor 102, and a computer program stored in the memory 101 and running on the processor 102. When the processor 102 executes the computer program, each step in a voltage calibration method for an insulation performance detection device as described in Example 1 is implemented.

[0056] In summary, the present invention provides a voltage calibration method and terminal for an insulation performance detection device. By obtaining the actual voltage of the transformer and determining the voltage range to which it belongs, the present invention dynamically calculates the current calibration factor by combining historical calibration data, and can update the calibration factor in real time according to the actual operating state of the transformer to ensure the accuracy of the voltage output. Compared with the static calibration method, the dynamic calibration can better adapt to the changes in the operating state of the transformer and reduce the measurement errors caused by device aging or environmental factors. Among them, the historical calibration data includes historical voltages and historical calibration factors. The present invention calculates the calibration weight of each historical voltage and combines all calibration weights and historical calibration factors to calculate the current calibration factor, which can more accurately reflect the voltage output characteristics of the transformer and reduce the influence of a single data point on the calibration result, thereby avoiding errors caused by abnormal data. In addition, the present invention also takes into account the influence of environmental parameters (such as temperature and humidity) on the voltage output of the transformer, and corrects the current calibration factor through a compensation function to further optimize the accuracy of the calibration factor. Through the combination of environmental compensation and dynamic adjustment factor mechanism, the device can maintain high-precision voltage output under different environmental conditions, effectively improving the stability and reliability of the device.

[0057] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A voltage calibration method for an insulation performance detection device, characterized in that: include: Obtaining an actual voltage of the transformer, and determining a voltage interval to which the actual voltage belongs; Acquire historical calibration data corresponding to the voltage interval in the transformer, and calculate a current calibration factor according to the historical calibration data; updating the actual voltage according to the current calibration factor to obtain a standard voltage, so as to control the output voltage of the transformer based on the standard voltage, wherein the output voltage is used to perform insulation performance testing on insulating gloves or insulating footwear; The standard voltage and the current calibration factor are marked as historical calibration data.

2. The voltage calibration method of the insulation performance detection device according to claim 1, characterized in that: The historical calibration data includes a plurality of historical voltages within a preset time period and a historical calibration factor corresponding to each of the historical voltages; Calculating the current calibration factor based on the historical calibration data includes: Calculate the calibration weight of the historical calibration factor corresponding to each of the historical voltages respectively according to each of the historical voltages; A current calibration factor is calculated according to all the calibration weights and the historical calibration factors within the preset time period.

3. The voltage calibration method of the insulation performance detection device according to claim 2, characterized in that: Calculating the calibration weight of the historical calibration factor corresponding to each of the historical voltages respectively according to each of the historical voltages comprises: Obtaining a target voltage that the transformer needs to output, and respectively calculating a historical voltage error between each of the historical voltages and the target voltage; The calibration weight of the historical calibration factor corresponding to each of the historical voltages is calculated respectively according to the historical voltage error of each of the historical voltages.

4. The voltage calibration method of the insulation performance detection device according to claim 3 is characterized in that: Calculating the calibration weight of the historical calibration factor corresponding to each of the historical voltages according to the historical voltage error of each of the historical voltages includes: ； Among them, w j represents the calibration weight of the jth historical calibration factor, E ihist,j represents the historical voltage error of the j-th historical voltage in voltage interval i, and ε represents the preset error tolerance; Calculating the current calibration factor according to all the calibration weights and the historical calibration factors within the preset time period includes: ； Among them, K i,base represents the current calibration factor for voltage interval i, k ihist,j Represents the jth historical calibration factor for voltage interval i.

5. The voltage calibration method of the insulation performance detection device according to claim 2, characterized in that: After calculating the current calibration factor according to all the calibration weights and the historical calibration factors within the preset time period, the method further includes: Acquiring environmental parameters corresponding to the actual voltage; The current calibration factor is compensated and corrected according to the environmental parameter to obtain a corrected current calibration factor.

6. The voltage calibration method of the insulation performance detection device according to claim 5, characterized in that: The environmental parameters include ambient temperature and ambient humidity; Compensating and correcting the current calibration factor according to the environmental parameter to obtain a corrected current calibration factor includes: Determine a compensation function according to the ambient temperature and the ambient humidity: g(P)=b1T+b2H; Wherein, b1 represents the temperature compensation coefficient, b2 represents the humidity compensation coefficient, T represents the ambient temperature, and H represents the ambient humidity; The current calibration factor is compensated and corrected according to the compensation function to obtain a corrected current calibration factor: K i =K i,base +g(P); Among them, K i Indicates the corrected current calibration factor, K i,base Indicates the current calibration factor before correction.

7. The voltage calibration method of the insulation performance detection device according to claim 1, characterized in that: Before obtaining the actual voltage of the transformer, it also includes: The target voltage that the transformer needs to output is obtained, and a plurality of voltage intervals are determined according to different percentage intervals of the target voltage.

8. The voltage calibration method of the insulation performance detection device according to claim 7, characterized in that: Updating the actual voltage according to the current calibration factor to obtain the standard voltage includes: Update the actual voltage according to the current calibration factor to obtain a calibration voltage; Detecting whether a voltage error between the calibration voltage and the target voltage is less than a preset error tolerance; If so, the calibration voltage is determined as the standard voltage.

9. The voltage calibration method of the insulation performance detection device according to claim 1, characterized in that: Also includes: If it is detected that the transformer does not have the historical calibration data, a manually input default calibration factor is obtained, and the actual voltage is updated according to the default calibration factor to obtain a standard voltage, so as to control the output voltage of the transformer based on the standard voltage.

10. A voltage calibration terminal for an insulation performance detection device, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the computer program, each step of the voltage calibration method for an insulation performance detection device as described in any one of claims 1 to 9 is implemented.

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