Calibration method and calibration device of electric energy meter, electronic equipment and readable storage medium

Abstract

The invention provides an electric energy meter verification method and device, electronic equipment and a readable storage medium, and the method comprises the steps: obtaining an actual current flowing through an electric energy meter under the condition that the electric energy meter is powered on; when the actual current is greater than or equal to the current threshold and the duration is greater than or equal to the first duration, determining the verification mode as a first verification mode; under the condition that the actual current is smaller than the current threshold value and the duration is larger than or equal to the first duration, the verification mode is determined to be a second verification mode; and calibrating the electric energy meter according to the first calibration mode or the second calibration mode. According to the verification method of the electric energy meter provided by the invention, the appropriate verification mode can be matched under the condition that the actual current in the electric energy meter is relatively small, so that the related regulations of the verification of the electric energy meter can be met, the verification efficiency of the electric energy meter can be ensured, and the consumed time in the verification process of the electric energy meter can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electric energy meters, and in particular to a calibration method, a calibration device, an electronic device and a readable storage medium for an electric energy meter. Background Art

[0002] In the related art, when performing error calibration on electric energy meters, the standard meter method or the watt-second method is usually used to meet the relevant regulations for electric energy meter calibration. However, when these calibration methods are used, when the current of the electric energy meter is small, it will take a long time to calibrate the electric energy meter, resulting in low calibration efficiency of the electric energy meter. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, a first aspect of the present application provides a calibration method for an electric energy meter.

[0005] A second aspect of the present application provides a calibration device for an electric energy meter.

[0006] A third aspect of the present application provides an electronic device.

[0007] A fourth aspect of the present application provides a readable storage medium.

[0008] The first aspect of the present application provides a calibration method for an electric energy meter, comprising: when the electric energy meter is powered on, obtaining the actual current flowing through the electric energy meter; when the actual current is greater than or equal to a current threshold and lasts for a period greater than or equal to a first period, determining the calibration mode to be a first calibration mode; when the actual current is less than the current threshold and lasts for a period greater than or equal to the first period, determining the calibration mode to be a second calibration mode; and calibrating the electric energy meter according to the first calibration mode or the second calibration mode.

[0009] The calibration method of the electric energy meter provided in the present application can be used to perform error calibration on the electric energy meter, that is, after the electric energy meter is manufactured, the error generated in the electric energy metering process is calibrated to avoid large errors in the produced electric energy meter and ensure the accuracy of the electric energy meter in measuring electric energy.

[0010] Specifically, during the calibration process of the electric energy meter, the electric energy meter needs to be powered on first, that is, the electric energy meter is connected to the circuit so that electric energy flows through the electric energy meter to measure the electric energy through the electric energy meter. Furthermore, after the electric energy meter is powered on, the actual current flowing through the electric energy meter is first obtained, and then the calibration mode required by the electric energy meter is determined according to the actual current.

[0011] It is understandable that in the process of calibrating the electric energy meter, it is necessary to calibrate according to the number of pulses of the electric energy meter, and the size of the actual current flowing through the electric energy meter directly determines the size of the number of pulses of the electric energy meter. Therefore, before calibrating the electric energy meter, first obtain the size of the actual current flowing through the electric energy meter, and then determine the calibration mode of the electric energy meter according to the size of the actual current. It is possible to calibrate the electric energy meter according to different actual currents using different calibration modes. In this way, even when the actual current in the electric energy meter is small, it is also possible to match the appropriate calibration mode, thereby ensuring the calibration efficiency of the electric energy meter and reducing the time consumed in the calibration process of the electric energy meter.

[0012] Specifically, when the actual current is greater than or equal to the current threshold and the duration is greater than or equal to the first duration, the verification mode is determined to be the first verification mode; when the actual current is less than the current threshold and the duration is greater than or equal to the first duration, the verification mode is determined to be the second verification mode.

[0013] Among them, it should be noted that in the first calibration mode, the calibration pulse of the electric energy meter is the first pulse number, and in the second calibration mode, the calibration pulse of the electric energy meter is the second pulse number. The first pulse number is the pulse constant of the electric energy meter, the second pulse number is greater than the first pulse number, and the current threshold satisfies: Ib>a>0.5Ib, a is the current threshold, and Ib is the calibrated current of the electric energy meter.

[0014] Specifically, the current threshold can be set between 0.5 and 1 times the calibrated current of the energy meter, that is, the current threshold satisfies Ib>a>0.5Ib, where a represents the current threshold and Ib represents the calibrated current of the energy meter. In the actual calibration process, the current threshold can be set to 0.7 times, 0.8 times, or 0.9 times the calibrated current. It should be noted that, in the actual calibration process, the current value corresponding to the calibration point of the electric energy meter is usually 0.5Ib, 0.1Ib, 0.05Ib, 0.02Ib or 0.01Ib, etc., and the current threshold satisfies Ib>a>0.5Ib, that is, the current threshold is greater than the current value corresponding to the calibration point of the electric energy meter. By setting the current threshold to be greater than the current value corresponding to the calibration point of the electric energy meter, the electric energy meter can enter the corresponding calibration mode before the current reaches the calibration point. When the calibration point is reached, the corresponding calibration mode can be directly used for calibration to ensure the accuracy of the electric energy meter calibration.

[0015] When the actual current of the electric energy meter is greater than or equal to the current threshold, it can be determined that the current flowing through the electric energy meter is not in a low current state, and at this time, the verification mode of the electric energy meter can be determined to be the first verification mode. On the contrary, if the actual current of the electric energy meter is less than the current threshold, it can be determined that the current flowing through the electric energy meter is in a low current state, and at this time, the verification mode of the electric energy meter can be determined to be the second verification mode.

[0016] It should be noted that when the electric energy meter is calibrated in the first calibration mode, the calibration pulse of the electric energy meter is the first pulse number. Correspondingly, when the electric energy meter is calibrated in the second calibration mode, the calibration pulse of the electric energy meter is the second pulse number, and the first pulse number is the pulse constant of the electric energy meter, and the second pulse number is greater than the first pulse number. That is, when the electric energy meter is calibrated in the second calibration mode, since the current flowing through the electric energy meter belongs to a small current state, the actual pulse count of the electric energy meter is small. If the calibration is still performed according to the pulse constant of the electric energy meter at this time, it will consume a long time. Therefore, in the second calibration mode, the calibration pulse of the electric energy meter can be set to be greater than the first pulse number, that is, the second pulse number is set to be greater than the pulse constant of the electric energy meter, so that the calibration pulse of the electric energy meter can be amplified, thereby reducing the pulse interval during the calibration process of the electric energy meter, and the time for error calculation during the calibration process is also shortened. On the basis of improving the calibration accuracy of the electric energy meter, the calibration time can be effectively reduced, the calibration efficiency can be improved, and there will be no problem of missed detection.

[0017] On the contrary, when the electric energy meter is calibrated in the first calibration mode, the current passing through the electric energy meter is not in a low current state, so the actual pulse count of the electric energy meter can reach the pulse constant, and the problem of consuming a long time will not occur. Therefore, when the actual current of the electric energy meter is greater than or equal to the current threshold, the electric energy meter can be calibrated according to the pulse constant, that is, calibration according to the first pulse number can ensure the calibration accuracy and efficiency of the electric energy meter.

[0018] In addition, in the process of determining the calibration mode, it is also necessary to consider the duration of the actual current of the electric energy meter. When the actual current of the electric energy meter is greater than or equal to the current threshold, and the duration is greater than or equal to the first duration, it can be determined that the first calibration mode can be used for calibration. Correspondingly, when the actual current of the electric energy meter is less than the current threshold, and the duration is greater than or equal to the first duration, it can be determined that the second calibration mode can be used for calibration. By setting the first duration, it is possible to avoid the influence of short-term current on the determination of the calibration mode, thereby ensuring the accuracy of the calibration mode determination.

[0019] Finally, after the calibration mode of the electric energy meter is determined, the electric energy meter can be calibrated according to the corresponding calibration mode. Specifically, the electric energy meter can be calibrated according to the corresponding first calibration mode or the second calibration mode in combination with the standard meter method or the watt-second method. In this way, the relevant regulations for the calibration of the electric energy meter can be met, and the calibration efficiency of the electric energy meter can be guaranteed by calibrating according to the corresponding calibration mode.

[0020] The calibration method of the electric energy meter provided in the present application first obtains the actual current flowing through the electric energy meter after the electric energy meter is powered on, and determines the calibration mode of the electric energy meter according to the actual current, that is, determines whether to perform calibration in the first calibration mode or the second calibration mode. By determining the calibration mode of the electric energy meter according to the actual current, it is possible to calibrate the electric energy meter in different calibration modes according to different actual currents. In this way, even when the actual current in the electric energy meter is small, a suitable calibration mode can be matched, thereby meeting the relevant regulations for the calibration of the electric energy meter, and at the same time, when the actual current of the electric energy meter is small, the calibration efficiency of the electric energy meter can be guaranteed, and the time consumed in the calibration process of the electric energy meter can be reduced.

[0021] In addition, the electric energy meter verification method in the above technical solution provided by the present invention may also have the following additional technical features:

[0022] In some technical solutions, optionally, when the actual current is less than the current threshold value and the duration is greater than or equal to the first duration, before determining that the verification mode is the second verification mode, the verification method further includes: determining the pulse multiple according to the parameters of the control chip of the electric energy meter; determining the second pulse number according to the pulse multiple and the pulse constant; wherein the pulse multiple satisfies: X=2 n , X is the pulse multiple, and n is an integer from 1 to 8.

[0023] In this technical solution, before determining the calibration mode of the electric energy meter, it is first necessary to determine the first pulse number and the second pulse number corresponding to the first calibration mode and the second calibration mode of the electric energy meter, wherein the first pulse number can be directly determined as the pulse constant of the electric energy meter, and the second pulse number needs to be determined based on the pulse constant.

[0024] Specifically, first, the parameters of the control chip of the electric energy meter can be obtained, and then the pulse multiple can be determined according to the parameters of the control chip. It is understandable that different electric energy meters may be controlled by different control chips, and accordingly, different control chips also have different parameters, and different chip parameters also determine the different metering performances of the electric energy meter. Therefore, in the process of determining the second pulse number, the pulse multiple is determined according to the parameters of the control chip of the electric energy meter. While realizing that the second pulse number can be amplified based on the pulse constant of the electric energy meter, the rationality of the second pulse number is also guaranteed, and it is ensured that the electric energy meter can be calibrated based on the second pulse number during the calibration process.

[0025] In addition, it should be noted that the pulse multiple X also needs to satisfy: X = 2 n , wherein n can be set to an integer from 1 to 8, that is, the pulse multiple can be 2, 4, 8, 16... In this way, the rationality of the second pulse number can be ensured during the verification of the electric energy meter using the second verification mode, thereby ensuring the verification accuracy of the electric energy meter.

[0026] In some technical schemes, optionally, the calibration method also includes: when the electric energy meter is in the second calibration mode, obtaining the operating parameters of the electric energy meter; when the operating parameters meet the preset conditions, exiting the second calibration mode; wherein the preset conditions include: the power-on time of the electric energy meter is greater than the time threshold, or the amount of electricity flowing through the electric energy meter is greater than the amount of electricity threshold.

[0027] In this technical solution, by setting preset conditions, when the electric energy meter is in the second verification mode, it can be determined whether it is necessary to exit the second verification mode according to the preset conditions.

[0028] Specifically, the preset condition can be set according to the parameters of the actual operation of the electric energy meter, for example, the preset condition can be set to the power-on time of the electric energy meter being greater than the time threshold. Or, the preset condition can be set to the amount of electricity flowing through the electric energy meter being greater than the electricity threshold.

[0029] When the electric energy meter is in the second calibration mode, the operating parameters of the electric energy meter can be obtained in real time, so that the operating parameters can be compared with preset conditions. When the operating parameters of the electric energy meter meet the preset conditions, the electric energy meter can be controlled to exit the second calibration mode.

[0030] Specifically, when the electric energy meter is in the second calibration mode, the power-on duration of the electric energy meter is obtained in real time, and when the power-on duration of the electric energy meter reaches a duration threshold, the electric energy meter can be controlled to exit the second calibration mode.

[0031] Alternatively, when the electric energy meter is in the second verification mode, the amount of electricity flowing through the electric energy meter can be obtained in real time, and when the amount of electricity flowing through the electric energy meter reaches an electricity threshold, the electric energy meter can be controlled to exit the second verification mode. In some technical solutions, optionally, the verification method further includes: when the electric energy meter is in the second verification mode, receiving an exit instruction issued by a user; and exiting the second verification mode when the exit instruction is received.

[0032] In this technical solution, the user can also actively control the electric energy meter to exit the second calibration mode. Specifically, when the electric energy meter is in the second calibration mode, the user can control the calibration device through the interactive device, that is, issue an exit command. When the calibration device receives the exit command issued by the user, it can control the electric energy meter to exit the second calibration mode.

[0033] According to the second aspect of the present application, a calibration device for an electric energy meter is proposed, comprising: an acquisition unit, used to acquire the actual current flowing through the electric energy meter when the electric energy meter is powered on; a determination unit, used to determine that the calibration mode is a first calibration mode when the actual current is greater than or equal to a current threshold and lasts for a period greater than or equal to a first period; and to determine that the calibration mode is a second calibration mode when the actual current is less than the current threshold and lasts for a period greater than or equal to the first period; and a calibration unit, used to calibrate the electric energy meter according to the first calibration mode or the second calibration mode.

[0034] The calibration device of the electric energy meter provided in the present application first obtains the actual current flowing through the electric energy meter after the electric energy meter is powered on, and determines the calibration mode of the electric energy meter according to the actual current, that is, determines whether to perform calibration in the first calibration mode or the second calibration mode. By determining the calibration mode of the electric energy meter according to the actual current, it is possible to calibrate the electric energy meter in different calibration modes according to different actual currents. In this way, even when the actual current in the electric energy meter is small, a suitable calibration mode can be matched, thereby meeting the relevant regulations for the calibration of the electric energy meter, and at the same time, when the actual current of the electric energy meter is small, the calibration efficiency of the electric energy meter can be guaranteed, and the time consumed in the calibration process of the electric energy meter can be reduced.

[0035] Furthermore, the determination unit is further used to: determine the pulse multiple according to the parameters of the control chip of the electric energy meter; determine the second pulse number according to the pulse multiple and the pulse constant; wherein the pulse multiple satisfies: X=2 n , X is the pulse multiple, and n is an integer from 1 to 8.

[0036] Furthermore, the acquisition unit is also used to: acquire the operating parameters of the electric energy meter when the electric energy meter is in the second calibration mode; the calibration unit is also used to exit the second calibration mode when the operating parameters meet preset conditions; wherein the preset conditions include: the power-on time of the electric energy meter is greater than the time threshold, or the amount of electricity flowing through the electric energy meter is greater than the amount of electricity threshold.

[0037] Furthermore, the verification device also includes: a receiving unit, which is used to receive an exit instruction issued by a user when the electric energy meter is in the second verification mode; the verification unit is also used to exit the second verification mode when the exit instruction is received.

[0038] According to a third aspect of the present application, an electronic device is proposed, comprising: a processor and a memory, the memory storing programs or instructions that can be run on the processor, and the programs or instructions, when executed by the processor, implement the steps of the electric energy meter calibration method provided in the first aspect.

[0039] The electronic device provided in the present application includes a memory and a processor, and also includes a program or instruction stored in the memory. When the program or instruction is executed by the processor, it can implement the steps of the calibration method of the electric energy meter of the first aspect mentioned above. Therefore, the electronic device has all the beneficial effects of the calibration method of the electric energy meter mentioned above, which will not be repeated here.

[0040] According to a fourth aspect of the present application, a readable storage medium is proposed, on which a program or instruction is stored. When the program or instruction is executed by a processor, a calibration method for an electric energy meter as described in any one of the above technical solutions is implemented.

[0041] The readable storage medium provided in the present application stores a program or instruction thereon. When the program or instruction is executed by the processor, it can implement the calibration method of the electric energy meter as any one of the above-mentioned technical solutions. Therefore, the storage medium has all the beneficial effects of the above-mentioned calibration method of the electric energy meter, which will not be repeated here.

[0042] According to a fifth aspect of the present application, a computer program product is proposed, comprising a computer program or instructions, which, when executed by a processor, implements a method for calibrating an electric energy meter as described in any one of the above technical solutions.

[0043] The computer program product provided in the present application includes a computer program or an instruction. When the computer program or the instruction is executed by a processor, it implements the calibration method of the electric energy meter of any one of the above-mentioned technical solutions. Therefore, the computer program product has all the beneficial effects of the calibration method of the above-mentioned electric energy meter, which will not be repeated here.

[0044] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0046] Figure 1 One of the flow charts of the calibration method of the electric energy meter provided in the embodiment of the present application is shown;

[0047] Figure 2 A structural block diagram of a calibration device for an electric energy meter provided in an embodiment of the present application is shown;

[0048] Figure 3 A structural block diagram of an electronic device provided in an embodiment of the present application is shown.

[0049] in, Figure 2 and Figure 3 The corresponding relationship between the reference numerals and component names in the figure is:

[0050] 300 is a calibration device for an electric energy meter, 302 is an acquisition unit, 304 is a determination unit, 306 is a calibration unit, 400 is an electronic device, 402 is a processor, and 404 is a memory. DETAILED DESCRIPTION

[0051] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0053] Refer to the following Figures 1 to 3 To describe the calibration method, calibration device, electronic device and readable storage medium of an electric energy meter provided according to some embodiments of the present application.

[0054] like Figure 1 As shown, according to an embodiment of the present application, a calibration method of an electric energy meter is proposed, comprising:

[0055] S102, when the electric energy meter is powered on, obtaining the actual current flowing through the electric energy meter;

[0056] S104, when the actual current is greater than or equal to the current threshold and the duration is greater than or equal to the first duration, determining the verification mode to be the first verification mode;

[0057] S106, when the actual current is less than the current threshold and the duration is greater than or equal to the first duration, determining the verification mode to be the second verification mode;

[0058] S108, calibrating the electric energy meter according to the first calibration mode or the second calibration mode.

[0059] Among them, in the first calibration mode, the calibration pulse of the electric energy meter is the first pulse number, and in the second calibration mode, the calibration pulse of the electric energy meter is the second pulse number. The first pulse number is the pulse constant of the electric energy meter, the second pulse number is greater than the first pulse number, and the current threshold satisfies: Ib>a>0.5Ib, a is the current threshold, and Ib is the calibrated current of the electric energy meter.

[0060] The calibration method of the electric energy meter provided in the present application can be used to perform error calibration on the electric energy meter, that is, after the electric energy meter is manufactured, the error generated in the electric energy metering process is calibrated to avoid large errors in the produced electric energy meter and ensure the accuracy of the electric energy meter in measuring electric energy.

[0061] Specifically, during the calibration process of the electric energy meter, the electric energy meter needs to be powered on first, that is, the electric energy meter is connected to the circuit so that electric energy flows through the electric energy meter to measure the electric energy through the electric energy meter. Furthermore, after the electric energy meter is powered on, the actual current flowing through the electric energy meter is first obtained, and then the calibration mode required by the electric energy meter is determined according to the actual current.

[0062] It is understandable that in the process of calibrating the electric energy meter, it is necessary to calibrate according to the number of pulses of the electric energy meter, and the size of the actual current flowing through the electric energy meter directly determines the size of the number of pulses of the electric energy meter. Therefore, before calibrating the electric energy meter, first obtain the size of the actual current flowing through the electric energy meter, and then determine the calibration mode of the electric energy meter according to the size of the actual current. It is possible to calibrate the electric energy meter according to different actual currents using different calibration modes. In this way, even when the actual current in the electric energy meter is small, it is also possible to match the appropriate calibration mode, thereby ensuring the calibration efficiency of the electric energy meter and reducing the time consumed in the calibration process of the electric energy meter.

[0063] Specifically, when the actual current is greater than or equal to the current threshold and the duration is greater than or equal to the first duration, the verification mode is determined to be the first verification mode; when the actual current is less than the current threshold and the duration is greater than or equal to the first duration, the verification mode is determined to be the second verification mode.

[0064] Among them, it should be noted that in the first calibration mode, the calibration pulse of the electric energy meter is the first pulse number, and in the second calibration mode, the calibration pulse of the electric energy meter is the second pulse number. The first pulse number is the pulse constant of the electric energy meter, the second pulse number is greater than the first pulse number, and the current threshold satisfies: Ib>a>0.5Ib, a is the current threshold, and Ib is the calibrated current of the electric energy meter.

[0065] Specifically, the current threshold can be set between 0.5 and 1 times the calibrated current of the energy meter, that is, the current threshold satisfies Ib>a>0.5Ib, where a represents the current threshold and Ib represents the calibrated current of the energy meter. In the actual calibration process, the current threshold can be set to 0.7 times, 0.8 times, or 0.9 times the calibrated current. It should be noted that, in the actual calibration process, the current value corresponding to the calibration point of the electric energy meter is usually 0.5Ib, 0.1Ib, 0.05Ib, 0.02Ib or 0.01Ib, etc., and the current threshold satisfies Ib>a>0.5Ib, that is, the current threshold is greater than the current value corresponding to the calibration point of the electric energy meter. By setting the current threshold to be greater than the current value corresponding to the calibration point of the electric energy meter, the electric energy meter can enter the corresponding calibration mode before the current reaches the calibration point. When the calibration point is reached, the corresponding calibration mode can be directly used for calibration to ensure the accuracy of the electric energy meter calibration.

[0066] When the actual current of the electric energy meter is greater than or equal to the current threshold, it can be determined that the current flowing through the electric energy meter is not in a low current state, and at this time, the verification mode of the electric energy meter can be determined to be the first verification mode. On the contrary, if the actual current of the electric energy meter is less than the current threshold, it can be determined that the current flowing through the electric energy meter is in a low current state, and at this time, the verification mode of the electric energy meter can be determined to be the second verification mode.

[0067] It should be noted that when the electric energy meter is calibrated in the first calibration mode, the calibration pulse of the electric energy meter is the first pulse number. Correspondingly, when the electric energy meter is calibrated in the second calibration mode, the calibration pulse of the electric energy meter is the second pulse number, and the first pulse number is the pulse constant of the electric energy meter, and the second pulse number is greater than the first pulse number. That is, when the electric energy meter is calibrated in the second calibration mode, since the current flowing through the electric energy meter belongs to a small current state, the actual pulse count of the electric energy meter is small. If the calibration is still performed according to the pulse constant of the electric energy meter at this time, it will consume a long time. Therefore, in the second calibration mode, the calibration pulse of the electric energy meter can be set to be greater than the first pulse number, that is, the second pulse number is set to be greater than the pulse constant of the electric energy meter, so that the calibration pulse of the electric energy meter can be amplified, thereby reducing the pulse interval during the calibration process of the electric energy meter, and the time for error calculation during the calibration process is also shortened. On the basis of improving the calibration accuracy of the electric energy meter, the calibration time can be effectively reduced, the calibration efficiency can be improved, and there will be no problem of missed detection.

[0068] On the contrary, when the electric energy meter is calibrated in the first calibration mode, the current passing through the electric energy meter is not in a low current state, so the actual pulse count of the electric energy meter can reach the pulse constant, and the problem of consuming a long time will not occur. Therefore, when the actual current of the electric energy meter is greater than or equal to the current threshold, the electric energy meter can be calibrated according to the pulse constant, that is, calibration according to the first pulse number can ensure the calibration accuracy and efficiency of the electric energy meter.

[0069] In addition, in the process of determining the calibration mode, it is also necessary to consider the duration of the actual current of the electric energy meter. When the actual current of the electric energy meter is greater than or equal to the current threshold, and the duration is greater than or equal to the first duration, it can be determined that the first calibration mode can be used for calibration. Correspondingly, when the actual current of the electric energy meter is less than the current threshold, and the duration is greater than or equal to the first duration, it can be determined that the second calibration mode can be used for calibration. By setting the first duration, the influence of short-term current on the determination of the calibration mode can be avoided, and the accuracy of the calibration mode determination can be ensured. Specifically, the first duration can be set to 4 seconds.

[0070] Finally, after the calibration mode of the electric energy meter is determined, the electric energy meter can be calibrated according to the corresponding calibration mode. Specifically, the electric energy meter can be calibrated according to the corresponding first calibration mode or the second calibration mode in combination with the standard meter method or the watt-second method. In this way, the relevant regulations for the calibration of the electric energy meter can be met, and the calibration efficiency of the electric energy meter can be guaranteed by calibrating according to the corresponding calibration mode.

[0071] The calibration method of the electric energy meter provided in the present application first obtains the actual current flowing through the electric energy meter after the electric energy meter is powered on, and determines the calibration mode of the electric energy meter according to the actual current, that is, determines whether to perform calibration in the first calibration mode or the second calibration mode. By determining the calibration mode of the electric energy meter according to the actual current, it is possible to calibrate the electric energy meter in different calibration modes according to different actual currents. In this way, even when the actual current in the electric energy meter is small, a suitable calibration mode can be matched, thereby meeting the relevant regulations for the calibration of the electric energy meter, and at the same time, when the actual current of the electric energy meter is small, the calibration efficiency of the electric energy meter can be guaranteed, and the time consumed in the calibration process of the electric energy meter can be reduced.

[0072] In some embodiments, optionally, when the actual current is less than the current threshold value and the duration is greater than or equal to the first duration, before determining that the verification mode is the second verification mode, the verification method further includes: determining the pulse multiple according to the parameters of the control chip of the electric energy meter; determining the second pulse number according to the pulse multiple and the pulse constant; wherein the pulse multiple satisfies: X=2 n , X is the pulse multiple, and n is an integer from 1 to 8.

[0073] In this embodiment, before determining the calibration mode of the electric energy meter, it is first necessary to determine the first pulse number and the second pulse number corresponding to the first calibration mode and the second calibration mode of the electric energy meter, wherein the first pulse number can be directly determined as the pulse constant of the electric energy meter, and the second pulse number needs to be determined based on the pulse constant.

[0074] Specifically, first, the parameters of the control chip of the electric energy meter can be obtained, and then the pulse multiple can be determined according to the parameters of the control chip. It is understandable that different electric energy meters may be controlled by different control chips, and accordingly, different control chips also have different parameters, and different chip parameters also determine the different metering performances of the electric energy meter. Therefore, in the process of determining the second pulse number, the pulse multiple is determined according to the parameters of the control chip of the electric energy meter. While realizing that the second pulse number can be amplified based on the pulse constant of the electric energy meter, the rationality of the second pulse number is also guaranteed, and it is ensured that the electric energy meter can be calibrated based on the second pulse number during the calibration process.

[0075] Exemplarily, the pulse constant of the electric energy meter is set to C, and then the pulse multiple is determined to be X according to the parameters of the control chip of the electric energy meter. At this time, the first pulse number corresponding to the first verification mode can be determined to be C, and the second pulse number corresponding to the second verification mode can be determined to be C×X. For example, if the pulse constant of the electric energy meter is 1000, and the determined pulse multiple is 8, then the first pulse number corresponding to the first verification mode is 1000, and the second pulse number corresponding to the second verification mode is 1000×8=8000.

[0076] In addition, it should be noted that the pulse multiple X also needs to satisfy: X = 2 n , wherein n can be set to an integer from 1 to 8, that is, the pulse multiple can be 2, 4, 8, 16... In this way, the rationality of the second pulse number can be ensured during the verification of the electric energy meter using the second verification mode, thereby ensuring the verification accuracy of the electric energy meter.

[0077] In some embodiments, optionally, the calibration method also includes: when the electric energy meter is in a second calibration mode, obtaining operating parameters of the electric energy meter; when the operating parameters meet preset conditions, exiting the second calibration mode; wherein the preset conditions include: the power-on time of the electric energy meter is greater than a time threshold, or the amount of electricity flowing through the electric energy meter is greater than an amount threshold.

[0078] In this embodiment, by setting a preset condition, when the electric energy meter is in the second verification mode, it can be determined whether to exit the second verification mode according to the preset condition.

[0079] Specifically, the preset condition can be set according to the parameters of the actual operation of the electric energy meter, for example, the preset condition can be set to the power-on time of the electric energy meter being greater than the time threshold. Or, the preset condition can be set to the amount of electricity flowing through the electric energy meter being greater than the electricity threshold.

[0080] When the electric energy meter is in the second calibration mode, the operating parameters of the electric energy meter can be obtained in real time, so that the operating parameters can be compared with preset conditions. When the operating parameters of the electric energy meter meet the preset conditions, the electric energy meter can be controlled to exit the second calibration mode.

[0081] Specifically, when the electric energy meter is in the second verification mode, the power-on time of the electric energy meter is obtained in real time, and when the power-on time of the electric energy meter reaches the time threshold, the electric energy meter can be controlled to exit the second verification mode. The time threshold can be set to 1 hour, 1.5 hours or 2 hours.

[0082] Alternatively, when the electric energy meter is in the second verification mode, the amount of electricity flowing through the electric energy meter can be obtained in real time, and when the amount of electricity flowing through the electric energy meter reaches the electric energy threshold, the electric energy meter can be controlled to exit the second verification mode. The electric energy threshold can be set to 4 kWh, 5 kWh or 6 kWh.

[0083] Furthermore, the verification method further includes: when the electric energy meter is in the second verification mode, receiving an exit instruction issued by a user; and when the exit instruction is received, exiting the second verification mode.

[0084] Specifically, the user can also actively control the electric energy meter to exit the second calibration mode. Specifically, when the electric energy meter is in the second calibration mode, the user can control the calibration device through the interactive device, that is, issue an exit command. When the calibration device receives the exit command issued by the user, it can control the electric energy meter to exit the second calibration mode.

[0085] In some embodiments, Figure 2 As shown, a calibration device 300 for an electric energy meter is proposed, including: an acquisition unit 302, used to acquire the actual current flowing through the electric energy meter when the electric energy meter is powered on; a determination unit 304, used to determine that the calibration mode is a first calibration mode when the actual current is greater than or equal to a current threshold and the duration is greater than or equal to a first duration; when the actual current is less than the current threshold and the duration is greater than or equal to the first duration, determine that the calibration mode is a second calibration mode; a calibration unit 306, used to calibrate the electric energy meter according to the first calibration mode or the second calibration mode.

[0086] The calibration device 300 of the electric energy meter provided in the present application first obtains the actual current flowing through the electric energy meter after the electric energy meter is powered on, and determines the calibration mode of the electric energy meter according to the actual current, that is, determines whether to perform calibration in the first calibration mode or the second calibration mode. By determining the calibration mode of the electric energy meter according to the actual current, it is possible to calibrate the electric energy meter in different calibration modes according to different actual currents. In this way, even when the actual current in the electric energy meter is small, a suitable calibration mode can be matched, thereby meeting the relevant regulations for the calibration of the electric energy meter, and at the same time, when the actual current of the electric energy meter is small, the calibration efficiency of the electric energy meter can be guaranteed, and the time consumed in the calibration process of the electric energy meter can be reduced.

[0087] In some embodiments, before determining the calibration mode of the electric energy meter, it is first necessary to determine the first pulse number and the second pulse number corresponding to the first calibration mode and the second calibration mode of the electric energy meter, wherein the first pulse number can be directly determined as the pulse constant of the electric energy meter, and the second pulse number needs to be determined based on the pulse constant.

[0088] Specifically, first, the parameters of the control chip of the electric energy meter can be obtained, and then the pulse multiple can be determined according to the parameters of the control chip. It is understandable that different electric energy meters may be controlled by different control chips, and accordingly, different control chips also have different parameters, and different chip parameters also determine the different metering performances of the electric energy meter. Therefore, in the process of determining the second pulse number, the pulse multiple is determined according to the parameters of the control chip of the electric energy meter. While realizing that the second pulse number can be amplified based on the pulse constant of the electric energy meter, the rationality of the second pulse number is also guaranteed, and it is ensured that the electric energy meter can be calibrated based on the second pulse number during the calibration process.

[0089] Exemplarily, the pulse constant of the electric energy meter is set to C, and then the pulse multiple is determined to be X according to the parameters of the control chip of the electric energy meter. At this time, the first pulse number corresponding to the first verification mode can be determined to be C, and the second pulse number corresponding to the second verification mode can be determined to be C×X. For example, if the pulse constant of the electric energy meter is 1000, and the determined pulse multiple is 8, then the first pulse number corresponding to the first verification mode is 1000, and the second pulse number corresponding to the second verification mode is 1000×8=8000.

[0090] In addition, it should be noted that the pulse multiple X also needs to satisfy: X = 2 n , wherein n can be set to an integer from 1 to 8, that is, the pulse multiple can be 2, 4, 8, 16... In this way, the rationality of the second pulse number can be ensured during the verification of the electric energy meter using the second verification mode, thereby ensuring the verification accuracy of the electric energy meter.

[0091] In some embodiments, by setting a preset condition, when the electric energy meter is in the second verification mode, it can be determined whether to exit the second verification mode according to the preset condition.

[0092] Specifically, the preset condition can be set according to the parameters of the actual operation of the electric energy meter, for example, the preset condition can be set to the power-on time of the electric energy meter being greater than the time threshold. Or, the preset condition can be set to the amount of electricity flowing through the electric energy meter being greater than the electricity threshold.

[0093] When the electric energy meter is in the second calibration mode, the operating parameters of the electric energy meter can be obtained in real time, so that the operating parameters can be compared with preset conditions. When the operating parameters of the electric energy meter meet the preset conditions, the electric energy meter can be controlled to exit the second calibration mode.

[0094] Specifically, when the electric energy meter is in the second verification mode, the power-on time of the electric energy meter is obtained in real time, and when the power-on time of the electric energy meter reaches the time threshold, the electric energy meter can be controlled to exit the second verification mode. The time threshold can be set to 1 hour, 1.5 hours or 2 hours.

[0095] Alternatively, when the electric energy meter is in the second verification mode, the amount of electricity flowing through the electric energy meter can be obtained in real time, and when the amount of electricity flowing through the electric energy meter reaches the electric energy threshold, the electric energy meter can be controlled to exit the second verification mode. The electric energy threshold can be set to 4 kWh, 5 kWh or 6 kWh.

[0096] In some embodiments, the user can also actively control the electric energy meter to exit the second calibration mode. Specifically, when the electric energy meter is in the second calibration mode, the user can control the calibration device through the interactive device, that is, issue an exit command. When the calibration device receives the exit command issued by the user, it can control the electric energy meter to exit the second calibration mode.

[0097] In some embodiments, Figure 3 As shown, an electronic device 400 is proposed, including: a processor 402 and a memory 404, the memory 404 stores programs or instructions that can be executed on the processor 402, and when the program or instruction is executed by the processor 402, the steps of the electric energy meter calibration method provided in the first aspect are implemented.

[0098] The electronic device 400 provided in the present application includes a memory 404 and a processor 402, and also includes a program or instruction stored in the memory 404. When the program or instruction is executed by the processor 402, it can implement the steps of the calibration method of the electric energy meter in any one of the above-mentioned embodiments. Therefore, the electronic device 400 has all the beneficial effects of the above-mentioned calibration method of the electric energy meter, which will not be repeated here.

[0099] In some embodiments, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, a calibration method of an electric energy meter as described in any one of the above embodiments is implemented.

[0100] The readable storage medium provided in the present application stores a program or instruction thereon. When the program or instruction is executed by the processor, it can implement the calibration method of the electric energy meter as in any one of the above-mentioned embodiments. Therefore, the storage medium has all the beneficial effects of the above-mentioned calibration method of the electric energy meter, which will not be repeated here.

[0101] Among them, the verification method of the electric energy meter can be implemented in various different ways according to specific characteristics and / or example applications. For example, these methods can be implemented by a combination of hardware, firmware and / or software. For example, in hardware implementation, the processor can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, electronic devices, other equipment units for performing the above functions and / or their combinations.

[0102] A readable storage medium may be a tangible device that can retain and store instructions for use by an instruction execution device. The readable storage medium may be an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the above devices, but is not limited thereto. A non-exhaustive list of more specific examples of readable storage media includes: a portable computer floppy disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory card, a floppy disk, an encoding mechanical device (such as a punched card or a groove with a raised structure having instructions recorded thereon), and any suitable combination of the above devices. The readable storage medium used herein should not be understood as a transmission signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium, or an electrical signal transmitted through a wire, etc.

[0103] In some embodiments, a computer program product is provided, including a computer program or an instruction, which, when executed by a processor, implements a method for calibrating an electric energy meter as described in any one of the above embodiments.

[0104] The computer program product provided in the present application includes a computer program or an instruction. When the computer program or the instruction is executed by a processor, it implements the calibration method of the electric energy meter in any one of the above-mentioned embodiments. Therefore, the computer program product has all the beneficial effects of the calibration method of the electric energy meter, which will not be repeated here.

[0105] In the description of this application, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the terms "upper" and "lower" indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. The terms "connection", "installation", "fixed", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0106] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0107] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for calibrating an electric energy meter, characterized in that: include: When the electric energy meter is powered on, obtaining an actual current flowing through the electric energy meter; When the actual current is greater than or equal to the current threshold value and the duration is greater than or equal to the first duration, determining the verification mode to be the first verification mode; When the actual current is less than the current threshold and the duration is greater than or equal to the first duration, determining the verification mode to be the second verification mode; Verifying the electric energy meter according to the first verification mode or the second verification mode; Among them, in the first calibration mode, the calibration pulse of the electric energy meter is a first pulse number, and in the second calibration mode, the calibration pulse of the electric energy meter is a second pulse number, the first pulse number is the pulse constant of the electric energy meter, the second pulse number is greater than the first pulse number, and the current threshold satisfies: Ib>a>0.5Ib, a is the current threshold, and Ib is the calibrated current of the electric energy meter.

2. The verification method according to claim 1, characterized in that: When the actual current is less than the current threshold and the duration is greater than or equal to the first duration, before determining that the verification mode is the second verification mode, the verification method further includes: Determining the pulse multiple according to the parameters of the control chip of the electric energy meter; Determining the second pulse number according to the pulse multiple and the pulse constant; Wherein, the pulse multiple satisfies: X=2 n , X is the pulse multiple, and n is an integer from 1 to 8.

3. The testing method according to claim 1, characterized in that: The verification method further comprises: When the electric energy meter is in the second verification mode, obtaining operating parameters of the electric energy meter; When the operating parameters meet the preset conditions, exit the second verification mode; The preset conditions include: the power-on time of the electric energy meter is greater than a time threshold, or the amount of electricity flowing through the electric energy meter is greater than an amount threshold.

4. The testing method according to claim 1, characterized in that: The verification method further comprises: When the electric energy meter is in the second verification mode, receiving an exit instruction issued by a user; When the exit instruction is received, the second testing mode is exited.

5. A calibration device for an electric energy meter, characterized in that: include: an acquisition unit, configured to acquire an actual current flowing through the electric energy meter when the electric energy meter is powered on; A determination unit, configured to determine that the verification mode is the first verification mode when the actual current is greater than or equal to the current threshold and the duration is greater than or equal to the first duration; When the actual current is less than the current threshold and the duration is greater than or equal to the first duration, determining the verification mode to be the second verification mode; A verification unit, configured to verify the electric energy meter according to the first verification mode or the second verification mode; Among them, in the first calibration mode, the calibration pulse of the electric energy meter is a first pulse number, and in the second calibration mode, the calibration pulse of the electric energy meter is a second pulse number, the first pulse number is the pulse constant of the electric energy meter, the second pulse number is greater than the first pulse number, and the current threshold satisfies: Ib>a>0.5Ib, a is the current threshold, and Ib is the calibrated current of the electric energy meter.

6. The testing device according to claim 5, characterized in that: The determining unit is further configured to: Determining the pulse multiple according to the parameters of the control chip of the electric energy meter; Determining the second pulse number according to the pulse multiple and the pulse constant; Wherein, the pulse multiple satisfies: X=2 n , X is the pulse multiple, and n is an integer from 1 to 8.

7. The testing device according to claim 5, characterized in that: The acquisition unit is also used for: When the electric energy meter is in the second verification mode, obtaining operating parameters of the electric energy meter; The verification unit is further configured to exit the second verification mode when the operating parameters meet a preset condition; The preset conditions include: the power-on time of the electric energy meter is greater than a time threshold, or the amount of electricity flowing through the electric energy meter is greater than an amount threshold.

8. The testing device according to claim 5, characterized in that: The verification device further comprises: a receiving unit, configured to receive an exit instruction issued by a user when the electric energy meter is in the second verification mode; The verification unit is further configured to exit the second verification mode upon receiving the exit instruction.

9. An electronic device, characterized in that: include: A processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the electric energy meter calibration method as described in any one of claims 1 to 4 are implemented.

10. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the electric energy meter calibration method according to any one of claims 1 to 4 are implemented.

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