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

Abstract

The invention provides an electric energy meter calibration method and device, electronic equipment and a readable storage medium, and the method comprises the steps: obtaining a plurality of actual parameters of an electric energy meter according to a parameter refresh cycle of the electric energy meter in response to a calibration instruction; determining an actual average value of the plurality of actual parameters; under the condition that the standard average value is received, the electric energy meter is calibrated according to the actual average value, the standard average value and the metering pulse constant of the electric energy meter; wherein the standard average value is determined according to a plurality of standard parameters, the standard parameters are obtained from the standard electric energy meter according to the parameter refresh cycle, the number of the standard parameters is the same as that of the actual parameters, and the standard parameters and the actual parameters are synchronously obtained. According to the control method of the electric energy meter, the calibration precision of the electric energy meter is ensured, and the calibration efficiency of the electric energy meter can be improved.

Description

Technical Field

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

[0002] In the related art, when calibrating an electric energy meter, usually two methods, namely power calibration method or pulse calibration method, are adopted. Among them, during the calibration process of the power calibration method, it is greatly affected by the signal fluctuation of the standard source of the standard electric energy meter. When the standard source fluctuates unstably, the error of the power calibration method is large and the accuracy is not high. While the pulse calibration method can only calibrate by phase and step by step, with low efficiency. Summary of the Invention

[0003] The present invention aims to at least solve the technical problems of low accuracy and efficiency in the calibration method of the electric energy meter in the prior art.

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

[0005] The second aspect of the present invention provides a calibration method for an electric energy meter.

[0006] The third aspect of the present invention provides a calibration device for an electric energy meter.

[0007] The fourth aspect of the present invention provides a calibration device for an electric energy meter.

[0008] The fifth aspect of the present invention provides an electronic device.

[0009] The sixth aspect of the present invention provides a readable storage medium.

[0010] The first aspect of the present invention provides a calibration method for an electric energy meter, which is executed by the electric energy meter. The calibration method of the electric energy meter includes: in response to a calibration instruction, obtaining a plurality of actual parameters of the electric energy meter according to the parameter refresh period of the electric energy meter; determining the actual average value of the plurality of actual parameters; when receiving the standard average value, calibrating the electric energy meter according to the actual average value, the standard average value and the metering pulse constant of the electric energy meter; wherein, the standard average value is determined according to a plurality of standard parameters, the standard parameters are obtained from the standard electric energy meter according to the parameter refresh period, the number of the standard parameters is the same as the number of the actual parameters, and the standard parameters and the actual parameters are obtained synchronously.

[0011] The calibration method of the electricity meter provided by the present invention can be executed by the electricity meter. Specifically, first, when the electricity meter receives a calibration instruction, the electricity meter can obtain multiple actual parameters of itself according to its own parameter refresh period. The actual parameter is the parameter during the actual operation of the electricity meter before calibration. It should be noted that the calibration instruction received by the electricity meter can be sent by the operator to the electricity meter through the calibration software of the calibration device.

[0012] Further, after the electricity meter obtains multiple actual parameters of itself, it can determine the actual average value of the multiple actual parameters according to the multiple actual parameters. Then, when the electricity meter receives the standard average value, it can perform parameter calibration of itself according to the actual average value, the standard average value, and the meter pulse constant of the electricity meter itself.

[0013] It should be noted that the standard average value can be obtained by the electricity meter from the calibration device. Specifically, the calibration device can obtain multiple standard parameters of the standard electricity meter and then determine the standard average value according to the multiple standard parameters. It can be understood that the standard parameter is a parameter corresponding to the actual parameter of the electricity meter. For example, if the actual parameters of the electricity meter are the active power and reactive power of the electricity meter, correspondingly, the standard parameters are the active power and reactive power of the standard electricity meter. If the actual parameters of the electricity meter are the effective voltage value, effective current value, and voltage-current phase angle of the electricity meter, then correspondingly, the standard parameters are the effective voltage value, effective current value, and voltage-current phase angle of the standard electricity meter.

[0014] In addition, it should be noted that the fluctuation of the standard source output parameters of the standard electricity meter is absolute, and the magnitude of the output parameter fluctuation is relative. The fluctuation range of the standard parameters output by the standard electricity meter should be within a preset range, that is, the fluctuation of the standard parameters output by the standard electricity meter cannot be too large to avoid large deviations during calibration according to the parameters of the standard electricity meter. For example, the fluctuation range of the standard parameters output by a standard electricity meter of five ten-thousandths can be between 0.1% and 0.05%.

[0015] Moreover, the multiple actual parameters of the electricity meter and the multiple standard parameters of the standard electricity meter are obtained synchronously. That is, when the electricity meter receives a calibration instruction, it starts to obtain multiple actual parameters of itself according to the parameter refresh period. At the same time, the calibration device also synchronously obtains multiple standard parameters of the standard electricity meter according to the parameter refresh period of the electricity meter. And the number of the actual parameters of the electricity meter is the same as the number of the standard parameters of the standard electricity meter. In this way, it can ensure the corresponding relationship between the standard average value and the actual average value during the process of the electricity meter performing parameter calibration of itself according to the actual average value, the standard average value, and the meter pulse constant of the electricity meter itself, and further ensure the calibration accuracy of the electricity meter.

[0016] In addition, it should be noted that the number of actual parameters and standard parameters can be set according to the calibration accuracy of the electric energy meter. Specifically, when the calibration accuracy of the electric energy meter is low, the number of actual parameters and standard parameters can be relatively small. On the contrary, when the calibration accuracy of the electric energy meter is high, the number of actual parameters and standard parameters can be relatively large, thereby improving the calibration accuracy of the electric energy meter.

[0017] The calibration method of the electric energy meter provided by the present invention obtains multiple actual parameters of the electric energy meter, determines the actual average value of the multiple actual parameters, and then combines the actual average value of the electric energy meter with the standard average value of the standard electric energy meter to calibrate the electric energy meter, which can effectively eliminate the error caused by the unstable fluctuation of the standard source and ensure the calibration accuracy of the electric energy meter. At the same time, by combining the actual average value, the standard average value and the metering pulse constant of the electric energy meter for calibration, it is possible to avoid phase-by-phase and step-by-step calibration, thereby not only ensuring the calibration accuracy of the electric energy meter but also improving the calibration efficiency of the electric energy meter.

[0018] In addition, according to the calibration method of the electric energy meter in the above technical solution provided by the present invention, the following additional technical features may also be included:

[0019] In some technical solutions, optionally, in response to a calibration instruction, multiple actual parameters of the electric energy meter are obtained according to the parameter refresh period of the electric energy meter, including: in response to the calibration instruction, delaying for one parameter refresh period to obtain the first actual parameter; obtaining the second actual parameter to the Nth actual parameter according to the parameter refresh period; where N is an integer greater than or equal to 2.

[0020] In this technical solution, when the electric energy meter receives the calibration instruction sent by the calibration device, it can delay for one parameter refresh period and then start obtaining its own actual parameters. That is, when the electric energy meter receives the calibration instruction, it does not immediately start obtaining its own actual parameters, but after one parameter refresh period, it starts obtaining the first actual parameter. At the same time, the electric energy meter can also send a response message to the calibration device to notify the calibration device that the electric energy meter has received the calibration instruction and can start obtaining the actual parameters of the electric energy meter after one parameter refresh period. At this time, the calibration device can start obtaining the standard parameters of the standard electric energy meter. It can be understood that the electric energy meter starts obtaining the actual parameters of the electric energy meter after one parameter refresh period after receiving the calibration instruction, and the calibration device starts obtaining the standard parameters of the standard electric energy meter after receiving the response message of the electric energy meter. Therefore, it can ensure that the actual parameters of the electric energy meter and the standard parameters of the standard electric energy meter can be obtained synchronously, thereby ensuring the calibration accuracy of the electric energy meter.

[0021] Further, after the watt-hour meter obtains the first actual parameter, it can obtain the second actual parameter to the Nth actual parameter according to the parameter refresh period of the watt-hour meter, where N is an integer greater than or equal to 2. That is, the actual parameters of the watt-hour meter should be obtained at least two, and then the actual average value can be determined according to at least two actual parameters to ensure the calibration accuracy of the watt-hour meter. The specific value of N can be set according to the calibration accuracy of the watt-hour meter. When the calibration accuracy of the watt-hour meter is low, the value of N can be set relatively small. On the contrary, when the calibration accuracy of the watt-hour meter is high, the value of N can be set relatively large, so as to improve the calibration accuracy of the watt-hour meter.

[0022] The second aspect of the present invention provides a calibration method for a watt-hour meter, which is executed by a calibration device. The calibration method for the watt-hour meter includes: obtaining the parameter refresh period of the watt-hour meter; obtaining a plurality of standard parameters of a standard watt-hour meter according to the parameter refresh period; determining the standard average value of the plurality of standard parameters; sending the standard average value to the watt-hour meter; where the watt-hour meter is used to calibrate the watt-hour meter according to the actual average value, the standard average value and the measurement pulse constant of the watt-hour meter when receiving the standard average value. The actual average value is determined according to a plurality of actual parameters of the watt-hour meter, the actual parameters are obtained from the watt-hour meter according to the parameter refresh period, the number of standard parameters is the same as the number of actual parameters, and the actual parameters and the standard parameters are obtained synchronously.

[0023] The calibration method for the watt-hour meter provided by the present invention can be executed by a calibration device. Specifically, first, the calibration device obtains the parameter refresh period of the watt-hour meter to be calibrated, and then obtains a plurality of standard parameters of the standard watt-hour meter according to the parameter refresh period of the watt-hour meter. It should be noted that the standard parameters are the parameters corresponding to the actual parameters of the watt-hour meter. For example, if the actual parameters of the watt-hour meter are the active power and reactive power of the watt-hour meter, correspondingly, the standard parameters are the active power and reactive power of the standard watt-hour meter. If the actual parameters of the watt-hour meter are the effective value of voltage, the effective value of current, and the voltage-current phase angle of the watt-hour meter, then correspondingly, the standard parameters are the effective value of voltage, the effective value of current, and the voltage-current phase angle of the standard watt-hour meter.

[0024] In addition, it should be noted that the fluctuation of the standard source output parameters of the standard watt-hour meter is absolute, and the size of the output parameter fluctuation is relative. The fluctuation range of the standard parameters output by the standard watt-hour meter should be within a preset range. That is, the fluctuation of the standard parameters output by the standard watt-hour meter cannot be too large to avoid large deviations when calibrating according to the parameters of the standard watt-hour meter. For example, the fluctuation range of the standard parameters output by a standard watt-hour meter of five ten-thousandths can be between 0.1% and 0.05%.

[0025] Furthermore, the calibration device can determine the standard average value of multiple standard parameters and send the standard average value to the electricity meter, so that the electricity meter can perform its own parameter calibration based on the standard average value, the actual average value of multiple actual parameters obtained by itself, and its own metering pulse constant.

[0026] Specifically, the multiple actual parameters of the electricity meter and the multiple standard parameters of the standard electricity meter are obtained synchronously. That is, when the electricity meter receives the calibration instruction, it starts to obtain multiple actual parameters of itself according to the parameter refresh period. At the same time, the calibration device also synchronously obtains multiple standard parameters of the standard electricity meter according to the parameter refresh period of the electricity meter. And the number of the actual parameters of the electricity meter is the same as the number of the standard parameters of the standard electricity meter. In this way, during the process of the electricity meter performing its own parameter calibration based on the actual average value, the standard average value, and its own metering pulse constant, the corresponding relationship between the standard average value and the actual average value can be guaranteed, thereby ensuring the calibration accuracy of the electricity meter.

[0027] The calibration method of the electricity meter provided by the present invention can effectively eliminate the error caused by the unstable fluctuation of the standard source and ensure the calibration accuracy of the electricity meter by obtaining multiple standard parameters of the standard electricity meter, determining the standard average value of the multiple standard parameters, and then sending the standard average value to the electricity meter, so that the electricity meter can combine the actual average value with the standard average value of the standard electricity meter during the calibration process. At the same time, by combining the actual average value, the standard average value, and the metering pulse constant of the electricity meter for calibration, it is possible to avoid phase-by-phase and step-by-step calibration, thereby not only ensuring the calibration accuracy of the electricity meter but also improving the calibration efficiency of the electricity meter.

[0028] In some technical solutions, optionally, obtaining multiple standard parameters of the standard electricity meter according to the parameter refresh period includes: sending a calibration instruction to the electricity meter; obtaining the first standard parameter when receiving the response information sent by the electricity meter; obtaining the second standard parameter to the N-1th standard parameter according to the parameter refresh period; where N is an integer greater than or equal to 2.

[0029] In this technical solution, when the electricity meter needs to be calibrated, the calibration device can first send a calibration instruction to the electricity meter. When the electricity meter receives the calibration instruction sent by the calibration device, it can delay for a parameter refresh cycle and then start obtaining its own actual parameters. At the same time, the electricity meter can also send a response message to the calibration device to notify the calibration device that the electricity meter has received the calibration instruction and can start obtaining the actual parameters of the electricity meter after a parameter refresh cycle. At this time, after the calibration device receives the response message sent by the electricity meter, the calibration device can start obtaining the first standard parameter of the standard electricity meter. It can be understood that the electricity meter starts obtaining its actual parameters after a parameter refresh cycle when it receives the calibration instruction, while the calibration device starts obtaining the standard parameters of the standard electricity meter after receiving the response message of the electricity meter. Therefore, it can ensure that the actual parameters of the electricity meter and the standard parameters of the standard electricity meter can be obtained synchronously, thereby ensuring the calibration accuracy of the electricity meter.

[0030] Further, after the calibration device obtains the first standard parameter of the standard electricity meter, it can obtain the second standard parameter to the Nth standard parameter according to the parameter refresh cycle of the electricity meter, where N is an integer greater than or equal to 2. That is, at least two actual parameters of the electricity meter and the standard parameters of the standard electricity meter need to be obtained. Furthermore, the actual average value can be determined according to at least two actual parameters, and the standard average value can be determined according to at least two standard parameters to ensure the calibration accuracy of the electricity meter.

[0031] In some technical solutions, optionally, before sending the calibration instruction to the electricity meter, the calibration method further includes: determining the number of actual parameters according to the calibration accuracy of the electricity meter; where the calibration instruction includes the number of actual parameters.

[0032] In this technical solution, before the calibration device sends the calibration instruction to the electricity meter, it can first determine the number of actual parameters that the electricity meter needs to obtain. Specifically, the calibration device can determine the number of actual parameters according to the calibration accuracy required by the electricity meter. Correspondingly, the number of standard parameters of the standard electricity meter is the same as the number of actual parameters of the electricity meter.

[0033] That is, when the calibration accuracy of the electricity meter is relatively low, the number of actual parameters and standard parameters can be relatively small. On the contrary, when the calibration accuracy of the electricity meter is relatively high, the number of actual parameters and standard parameters can be relatively large, thereby improving the calibration accuracy of the electricity meter.

[0034] According to a third aspect of the present invention, a calibration device for an electric energy meter is provided, which is used for the electric energy meter. The calibration device includes: an acquisition unit, configured to, in response to a calibration instruction, acquire a plurality of actual parameters of the electric energy meter according to the parameter refresh period of the electric energy meter; a determination unit, configured to determine the actual average value of the plurality of actual parameters; a calibration unit, configured to, when receiving the standard average value, calibrate the electric energy meter according to the actual average value, the standard average value, and the metering pulse constant of the electric energy meter; wherein, the standard average value is determined according to a plurality of standard parameters, the standard parameters are obtained from a standard electric energy meter according to the parameter refresh period, the number of the standard parameters is the same as the number of the actual parameters, and the standard parameters and the actual parameters are acquired synchronously.

[0035] The calibration device for the electric energy meter provided by the present invention calibrates the electric energy meter by acquiring a plurality of actual parameters of the electric energy meter, determining the actual average value of the plurality of actual parameters, and then combining the actual average value of the electric energy meter with the standard average value of the standard electric energy meter, which can effectively eliminate the error caused by the instability of the standard source fluctuation and ensure the calibration accuracy of the electric energy meter. At the same time, by combining the actual average value, the standard average value, and the metering pulse constant of the electric energy meter for calibration, it is possible to avoid phase-by-phase and step-by-step calibration, thus not only ensuring the calibration accuracy of the electric energy meter but also improving the calibration efficiency of the electric energy meter.

[0036] Further, the acquisition unit is specifically configured to: in response to a calibration instruction, delay for a parameter refresh period to acquire the first actual parameter; and acquire the second actual parameter to the Nth actual parameter according to the parameter refresh period; where N is an integer greater than or equal to 2.

[0037] According to a fourth aspect of the present invention, a calibration device for an electric energy meter is provided, which is used for a calibration device. The calibration device includes: an acquisition unit, configured to acquire the parameter refresh period of the electric energy meter; and acquire a plurality of standard parameters of the standard electric energy meter according to the parameter refresh period; a determination unit, configured to determine the standard average value of the plurality of standard parameters; a sending unit, configured to send the standard average value to the electric energy meter; wherein, the electric energy meter is configured to, when receiving the standard average value, calibrate the electric energy meter according to the actual average value, the standard average value, and the metering pulse constant of the electric energy meter, the actual average value is determined according to a plurality of actual parameters of the electric energy meter, the actual parameters are obtained from the electric energy meter according to the parameter refresh period, the number of the standard parameters is the same as the number of the actual parameters, and the actual parameters and the standard parameters are acquired synchronously.

[0038] The calibration device for an electric energy meter provided by the present invention obtains multiple standard parameters of a standard electric energy meter, determines the standard average value of the multiple standard parameters, and then sends the standard average value to the electric energy meter. Thus, during the calibration process of the electric energy meter, the actual average value can be combined with the standard average value of the standard electric energy meter to calibrate the electric energy meter, which can effectively eliminate the errors caused by the instability of the standard source fluctuation, ensure the calibration accuracy of the electric energy meter. At the same time, by combining the actual average value, the standard average value and the metering pulse constant of the electric energy meter for calibration, it is possible to avoid phase-by-phase and step-by-step calibration, thereby not only ensuring the calibration accuracy of the electric energy meter but also improving the calibration efficiency of the electric energy meter.

[0039] Further, the sending unit is further configured to send a calibration instruction to the electric energy meter; the obtaining unit is specifically configured to obtain the first standard parameter when receiving the response information sent by the electric energy meter; and obtain the second standard parameter to the N-1th and standard parameters according to the parameter refresh period, where N is an integer greater than or equal to 2.

[0040] Further, the determining unit is further configured to determine the number of actual parameters according to the calibration accuracy of the electric energy meter; where the calibration instruction includes the number of actual parameters.

[0041] According to the fifth aspect of the present invention, an electronic device is provided, including: a processor and a memory, the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the calibration method for an electric energy meter in any of the above technical solutions are implemented.

[0042] The electronic device provided by the present invention includes a memory and a processor, and also includes a program or instruction stored on the memory. When the program or instruction is executed by the processor, the steps of the calibration method for an electric energy meter in the above technical solution can be implemented. Therefore, the electronic device has all the beneficial effects of the above calibration method for an electric energy meter, which will not be elaborated here.

[0043] According to the sixth aspect of the present invention, a readable storage medium is provided, on which a program or instruction is stored, and when the program or instruction is executed by the processor, the calibration method for an electric energy meter in any of the above technical solutions is implemented.

[0044] The readable storage medium provided by the present invention stores a program or instruction. Since the program or instruction can implement the calibration method for an electric energy meter in any of the above technical solutions when executed by the processor, the readable storage medium has all the beneficial effects of the above calibration method for an electric energy meter, which will not be elaborated here.

[0045] The additional aspects and advantages of the present invention will become apparent in the following description section or be understood through the practice of the present invention. Description of the Drawings

[0046] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0047] Figure 1 FIG. 1 shows one of the schematic flowcharts of the calibration method for an electric energy meter according to an embodiment of the present invention;

[0048] Figure 2 FIG. 2 shows another schematic flowchart of the calibration method for an electric energy meter according to an embodiment of the present invention;

[0049] Figure 3 FIG. 3 shows yet another schematic flowchart of the calibration method for an electric energy meter according to an embodiment of the present invention;

[0050] Figure 4 FIG. 4 shows one of the block diagrams of the structure of the calibration device for an electric energy meter according to an embodiment of the present invention;

[0051] Figure 5 FIG. 5 shows another block diagram of the structure of the calibration device for an electric energy meter according to an embodiment of the present invention;

[0052] Figure 6 FIG. 6 shows the block diagram of the structure of the electronic device provided by an embodiment of the present invention.

[0053] Wherein, Figures 4 to 6 the corresponding relationship between the reference numerals in the drawings and the component names is as follows:

[0054] 400 is the calibration device for the electric energy meter, 402 is the acquisition unit, 404 is the determination unit, 406 is the calibration unit, 500 is the calibration device for the electric energy meter, 502 is the acquisition unit, 504 is the determination unit, 506 is the sending unit, 600 is the electronic device, 602 is the processor, and 604 is the memory. Detailed Embodiments

[0055] In order to more clearly understand the above objects, features, and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0056] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0057] The following will refer to Figures 1 to 6 to describe the calibration method, device, electronic device, and readable storage medium for an electric energy meter according to some embodiments of the present invention.

[0058] As Figure 1As shown, according to an embodiment of the present invention, a calibration method for an electric energy meter is proposed, which is executed by the electric energy meter. The calibration method for the electric energy meter includes:

[0059] S102, in response to a calibration instruction, obtain multiple actual parameters of the electric energy meter according to the parameter refresh period of the electric energy meter;

[0060] S104, determine the actual average value of the multiple actual parameters;

[0061] S106, when receiving the standard average value, calibrate the electric energy meter according to the actual average value, the standard average value and the metering pulse constant of the electric energy meter;

[0062] Wherein, the standard average value is determined according to multiple standard parameters, the standard parameters are obtained from a standard electric energy meter according to the parameter refresh period, the number of standard parameters is the same as the number of actual parameters, and the standard parameters and the actual parameters are obtained synchronously.

[0063] The calibration method for the electric energy meter provided by the present invention can be executed by the electric energy meter. Specifically, first, when the electric energy meter receives a calibration instruction, the electric energy meter can obtain multiple actual parameters of itself according to its own parameter refresh period. The actual parameter is the parameter during the actual operation of the electric energy meter before calibration. It should be noted that the calibration instruction received by the electric energy meter can be sent by an operator to the electric energy meter through the calibration software of the calibration device.

[0064] Furthermore, after the electric energy meter obtains multiple actual parameters of itself, it can determine the actual average value of the multiple actual parameters according to the multiple actual parameters. Then, when the electric energy meter receives the standard average value, it can calibrate its own parameters according to the actual average value, the standard average value and the metering pulse constant of the electric energy meter itself.

[0065] It should be noted that the standard average value can be obtained by the electric energy meter from the calibration device. Specifically, the calibration device can obtain multiple standard parameters of the standard electric energy meter and then determine the standard average value according to the multiple standard parameters. It can be understood that the standard parameter is a parameter corresponding to the actual parameter of the electric energy meter. For example, if the actual parameters of the electric energy meter are the active power and reactive power of the electric energy meter, correspondingly, the standard parameters are the active power and reactive power of the standard electric energy meter. If the actual parameters of the electric energy meter are the effective voltage value and effective current value of the electric energy meter, then correspondingly, the standard parameters are the effective voltage value and effective current value of the standard electric energy meter.

[0066] In addition, it should be noted that the fluctuation range of the standard parameters output by the standard watt-hour meter is within the preset range, that is, the fluctuation of the standard parameters output by the standard watt-hour meter cannot be too large to avoid large deviations during calibration based on the parameters of the standard watt-hour meter. Specifically, the fluctuation range of the standard parameters output by the standard watt-hour meter can be between 0.1% and 0.05%.

[0067] Moreover, multiple actual parameters of the watt-hour meter and multiple standard parameters of the standard watt-hour meter are acquired synchronously. That is, when the watt-hour meter receives a calibration instruction, it starts to acquire multiple actual parameters of itself according to the parameter refresh period. At the same time, the calibration device also synchronously acquires multiple standard parameters of the standard watt-hour meter according to the parameter refresh period of the watt-hour meter. And the number of actual parameters of the watt-hour meter is the same as the number of standard parameters of the standard watt-hour meter. In this way, during the process of calibrating its own parameters based on the actual average value, the standard average value, and the metering pulse constant of the watt-hour meter itself, the corresponding relationship between the standard average value and the actual average value can be ensured, thereby ensuring the calibration accuracy of the watt-hour meter.

[0068] In addition, it should be noted that the number of actual parameters and standard parameters can be set according to the calibration accuracy of the watt-hour meter. Specifically, when the calibration accuracy of the watt-hour meter is relatively low, the number of actual parameters and standard parameters can be relatively small. On the contrary, when the calibration accuracy of the watt-hour meter is relatively high, the number of actual parameters and standard parameters can be relatively large, so as to improve the calibration accuracy of the watt-hour meter.

[0069] Compared with the power meter calibration method in the related art, the calibration method of the watt-hour meter in this application can effectively improve the calibration accuracy. Specifically, in the power meter calibration method in the related art, the meter calibration tool software reads the active power and reactive power of each phase from the standard watt-hour meter and then sends them to the watt-hour meter. The watt-hour meter performs active power gain calibration and angular difference correction for each phase of the watt-hour meter based on the active power and reactive power of each phase of the standard watt-hour meter received and the active power and reactive power measured by itself, and then comprehensively considers the metering pulse constant. When the standard source fluctuates unstably, the error of the power meter calibration method is relatively large. In this application, by acquiring multiple actual parameters of the watt-hour meter and multiple standard parameters of the standard watt-hour meter, determining the actual average value of the multiple actual parameters and the standard average value of the multiple standard parameters, and then performing correction based on the actual average value and the standard average value, the error caused by the unstable fluctuation of the standard source can be effectively eliminated.

[0070] Compared with the pulse meter calibration method in the related art, the calibration method of the electric energy meter in the present application can effectively improve the efficiency of the calibration process. Specifically, in the pulse meter calibration method in the related art, the standard electric energy meter calculates the detection error of the electric energy meter according to the known electric energy measurement parameters and the detection electric energy meter output pulse time interval. The meter calibration tool software reads the detection error of the standard electric energy meter from the standard electric energy meter and sends it to the electric energy meter. The electric energy meter performs active power gain calibration or angular difference correction according to the received detection error value. The meter calibration tool software first reads the resistive detection error of the electric energy meter from the standard electric energy meter, and the meter calibration tool software sends the resistive detection error to the electric energy meter. The electric energy meter performs active power gain calibration of the electric energy meter according to the received detection error; then the meter calibration tool software reads the inductive detection error of the electric energy meter from the standard electric energy meter, and the meter calibration tool software sends the inductive detection error value to the electric energy meter. The electric energy meter performs angular difference correction of the electric energy meter according to the received detection error. That is, the pulse meter calibration method requires phase-by-phase and step-by-step calibration, and the efficiency is low. In the present application, the measurement pulse constant of the electric energy meter is combined with the actual average value of the electric energy meter and the standard average value of the standard electric energy meter for calibration, so that the accuracy of the pulse meter calibration method can be achieved, and at the same time, phase-by-phase and step-by-step calibration is not required, so that both the calibration accuracy of the electric energy meter and the calibration efficiency of the electric energy meter can be improved.

[0071] The calibration method of the electric energy meter provided by the present invention obtains a plurality of actual parameters of the electric energy meter, determines the actual average value of the plurality of actual parameters, and then combines the actual average value of the electric energy meter with the standard average value of the standard electric energy meter to calibrate the electric energy meter, which can effectively eliminate the error caused by the instability of the standard source fluctuation, ensure the calibration accuracy of the electric energy meter. At the same time, by combining the actual average value, the standard average value and the measurement pulse constant of the electric energy meter for calibration, phase-by-phase and step-by-step calibration can be avoided, so that both the calibration accuracy of the electric energy meter and the calibration efficiency of the electric energy meter can be improved.

[0072] Exemplarily, in the process of calibrating the electric energy meter, the measurement pulse constant of the electric energy meter can be specifically calibrated according to the difference between the actual average value and the standard average value to improve the accuracy of the electric energy meter in the process of measuring electricity.

[0073] In some embodiments, optionally, in response to a calibration instruction, according to the parameter refresh period of the electric energy meter, a plurality of actual parameters of the electric energy meter are obtained, including: in response to the calibration instruction, delaying for one parameter refresh period to obtain the first actual parameter; according to the parameter refresh period, obtaining the second actual parameter to the Nth actual parameter; where N is an integer greater than or equal to 2.

[0074] In this embodiment, when the electricity meter receives the calibration instruction sent by the calibration device, it can delay for a parameter refresh period and then start acquiring the actual parameters of the electricity meter itself. That is, when the electricity meter receives the calibration instruction, it does not immediately start acquiring its own actual parameters. Instead, after a parameter refresh period, it starts acquiring the first actual parameter. At the same time, the electricity meter can also send a response message to the calibration device to notify the calibration device that the electricity meter has received the calibration instruction and can start acquiring the actual parameters of the electricity meter after a parameter refresh period. At this time, the calibration device can start acquiring the standard parameters of the standard electricity meter. It can be understood that the electricity meter starts acquiring the actual parameters of the electricity meter after a parameter refresh period after receiving the calibration instruction, and the calibration device starts acquiring the standard parameters of the standard electricity meter after receiving the response message from the electricity meter. Therefore, it can ensure that the actual parameters of the electricity meter and the standard parameters of the standard electricity meter can be acquired synchronously, thereby ensuring the calibration accuracy of the electricity meter.

[0075] Further, after the electricity meter acquires the first actual parameter, it can acquire the second actual parameter to the Nth actual parameter according to the parameter refresh period of the electricity meter, where N is an integer greater than or equal to 2. That is, the actual parameters of the electricity meter should be acquired at least two, and then the actual average value can be determined according to at least two actual parameters to ensure the calibration accuracy of the electricity meter. The specific value of N can be set according to the calibration accuracy of the electricity meter. When the calibration accuracy of the electricity meter is low, the value of N can be set relatively small. On the contrary, when the calibration accuracy of the electricity meter is high, the value of N can be set relatively large, so as to improve the calibration accuracy of the electricity meter.

[0076] As Figure 2 shown, according to an embodiment of the present invention, a calibration method for an electricity meter is provided, which is executed by a calibration device. The calibration method for the electricity meter includes:

[0077] S202, acquiring the parameter refresh period of the electricity meter;

[0078] S204, acquiring a plurality of standard parameters of the standard electricity meter according to the parameter refresh period;

[0079] S206, determining the standard average value of the plurality of standard parameters;

[0080] S208, sending the standard average value to the electricity meter;

[0081] Among them, the electricity meter is used to calibrate the electricity meter according to the actual average value, the standard average value, and the metering pulse constant of the electricity meter when receiving the standard average value. The actual average value is determined according to multiple actual parameters of the electricity meter. The actual parameters are obtained from the electricity meter according to the parameter refresh period. The number of standard parameters is the same as the number of actual parameters, and the actual parameters and the standard parameters are obtained synchronously.

[0082] The calibration method of the electricity meter provided by the present invention can be executed by a calibration device. Specifically, first, the calibration device obtains the parameter refresh period of the electricity meter to be calibrated, and then obtains multiple standard parameters of the standard electricity meter according to the parameter refresh period of the electricity meter. It should be noted that the standard parameters are the parameters corresponding to the actual parameters of the electricity meter. For example, if the actual parameters of the electricity meter are the active power and reactive power of the electricity meter, correspondingly, the standard parameters are the active power and reactive power of the standard electricity meter. If the actual parameters of the electricity meter are the effective voltage value and effective current value of the electricity meter, then correspondingly, the standard parameters are the effective voltage value and effective current value of the standard electricity meter.

[0083] In addition, it should be noted that the fluctuation range of the standard parameters output by the standard electricity meter is within a preset range, that is, the fluctuation of the standard parameters output by the standard electricity meter cannot be too large to avoid large deviations when calibrating according to the parameters of the standard electricity meter. Specifically, the fluctuation range of the standard parameters output by the standard electricity meter can be between 0.1% and 0.05%.

[0084] Furthermore, the calibration device can determine the standard average value of multiple standard parameters and send the standard average value to the electricity meter, so that the electricity meter can calibrate its own parameters according to the standard average value, the actual average value of multiple actual parameters obtained by itself, and its own metering pulse constant.

[0085] Specifically, multiple actual parameters of the electricity meter and multiple standard parameters of the standard electricity meter are obtained synchronously. That is, when the electricity meter receives a calibration instruction, it starts to obtain multiple actual parameters of itself according to the parameter refresh period. At the same time, the calibration device also synchronously obtains multiple standard parameters of the standard electricity meter according to the parameter refresh period of the electricity meter. And the number of actual parameters of the electricity meter is the same as the number of standard parameters of the standard electricity meter. In this way, the corresponding relationship between the standard average value and the actual average value can be guaranteed during the process of the electricity meter calibrating its own parameters according to the actual average value, the standard average value, and its own metering pulse constant, thereby ensuring the calibration accuracy of the electricity meter.

[0086] Compared with the power meter calibration method in the related art, the calibration method of the electric energy meter in the present application can effectively improve the calibration accuracy. Specifically, in the power meter calibration method in the related art, the meter calibration tool software reads the active power and reactive power of each phase from the standard electric energy meter and then sends them to the electric energy meter. The electric energy meter performs the active power gain calibration and angular difference correction of each phase of the electric energy meter according to the active power and reactive power of each phase of the received standard electric energy meter and the active power and reactive power measured by itself, and then comprehensively measures the pulse constant. When the standard source fluctuates unstably, the error of the power meter calibration method is relatively large. In the present application, by obtaining multiple actual parameters of the electric energy meter and multiple standard parameters of the standard electric energy meter and determining the actual average value of the multiple actual parameters and the standard average value of the multiple standard parameters, and then performing calibration according to the actual average value and the standard average value, the error caused by the unstable fluctuation of the standard source can be effectively eliminated.

[0087] Compared with the pulse meter calibration method in the related art, the calibration method of the electric energy meter in the present application can effectively improve the efficiency of the calibration process. Specifically, in the pulse meter calibration method in the related art, the standard electric energy meter calculates the detection error of the electric energy meter according to the known electric energy measurement parameters and the detection electric energy meter output pulse time interval. The meter calibration tool software reads the detection error of the standard electric energy meter from the standard electric energy meter and then sends it to the electric energy meter. The electric energy meter performs the active power gain calibration or angular difference correction according to the received detection error value. The meter calibration tool software first reads the resistive detection error of the electric energy meter from the standard electric energy meter, and the meter calibration tool software sends the resistive detection error to the electric energy meter. The electric energy meter performs the active power gain calibration of the electric energy meter according to the received detection error; then the meter calibration tool software reads the inductive detection error of the electric energy meter from the standard electric energy meter, and the meter calibration tool software sends the inductive detection error value to the electric energy meter. The electric energy meter performs the angular difference correction of the electric energy meter according to the received detection error. That is, the pulse meter calibration method requires phase-by-phase and step-by-step calibration, and the efficiency is relatively low. In the present application, the measurement pulse constant of the electric energy meter is combined with the actual average value of the electric energy meter and the standard average value of the standard electric energy meter for calibration, so that the accuracy of the pulse meter calibration method can be achieved, and at the same time, phase-by-phase and step-by-step calibration is not required, thus ensuring both the calibration accuracy of the electric energy meter and improving the calibration efficiency of the electric energy meter.

[0088] The calibration method of the electric energy meter provided by the present invention, by obtaining multiple standard parameters of the standard electric energy meter, determining the standard average value of the multiple standard parameters, and then sending the standard average value to the electric energy meter, so that during the calibration process of the electric energy meter, the actual average value can be combined with the standard average value of the standard electric energy meter to perform the calibration of the electric energy meter, which can effectively eliminate the error caused by the unstable fluctuation of the standard source and ensure the calibration accuracy of the electric energy meter. At the same time, by combining the actual average value, the standard average value and the measurement pulse constant of the electric energy meter for calibration, phase-by-phase and step-by-step calibration is not required, thus ensuring both the calibration accuracy of the electric energy meter and improving the calibration efficiency of the electric energy meter.

[0089] In some embodiments, optionally, according to the parameter refresh period, a plurality of standard parameters of a standard electricity meter are obtained, including: sending a calibration instruction to the electricity meter; when receiving a response message sent by the electricity meter, obtaining a first standard parameter; according to the parameter refresh period, obtaining a second standard parameter to the N-1th and standard parameters; where N is an integer greater than or equal to 2.

[0090] In this embodiment, when it is necessary to calibrate the electricity meter, the calibration device can first send a calibration instruction to the electricity meter. When the electricity meter receives the calibration instruction sent by the calibration device, it can delay for a parameter refresh period and then start obtaining the actual parameters of the electricity meter itself. At the same time, the electricity meter can also send a response message to the calibration device to notify the calibration device that the electricity meter has received the calibration instruction and can start obtaining the actual parameters of the electricity meter after a parameter refresh period. At this time, after the calibration device receives the response message sent by the electricity meter, the calibration device can start obtaining the first standard parameter of the standard electricity meter. It can be understood that the electricity meter starts obtaining the actual parameters of the electricity meter after a parameter refresh period after receiving the calibration instruction, while the calibration device starts obtaining the standard parameters of the standard electricity meter after receiving the response message of the electricity meter. Therefore, it can ensure that the actual parameters of the electricity meter and the standard parameters of the standard electricity meter can be obtained synchronously, thereby ensuring the calibration accuracy of the electricity meter.

[0091] Further, after the calibration device obtains the first standard parameter of the standard electricity meter, it can obtain the second standard parameter to the Nth standard parameter according to the parameter refresh period of the electricity meter, where N is an integer greater than or equal to 2. That is, at least two actual parameters of the electricity meter and the standard parameters of the standard electricity meter need to be obtained, and then the actual average value can be determined according to at least two actual parameters, and the standard average value can be determined according to at least two standard parameters to ensure the calibration accuracy of the electricity meter.

[0092] In some embodiments, optionally, before sending a calibration instruction to the electricity meter, the calibration method further includes: determining the number of actual parameters according to the calibration accuracy of the electricity meter; where the calibration instruction includes the number of actual parameters.

[0093] In this embodiment, before the calibration device sends a calibration instruction to the electricity meter, it can first determine the number of actual parameters that the electricity meter needs to obtain. Specifically, the calibration device can determine the number of actual parameters according to the calibration accuracy required by the electricity meter. Correspondingly, the number of standard parameters of the standard electricity meter is the same as the number of actual parameters of the electricity meter.

[0094] That is, when the calibration accuracy of the electricity meter is relatively low, the number of actual parameters and standard parameters can be relatively small. On the contrary, when the calibration accuracy of the electricity meter is relatively high, the number of actual parameters and standard parameters can be relatively large, thereby improving the calibration accuracy of the electricity meter.

[0095] In a specific embodiment, as Figure 3 shown, the calibration process of the electricity meter is as follows:

[0096] S302, control the standard electricity meter to output a preset signal:

[0097] Specifically, the preset signal can be a 0.5L signal, that is, the angle between the voltage and current of the standard electricity meter is 60 degrees. It should be noted that in actual operation, other angles can also be used to output the preset signal;

[0098] S304, the calibration device obtains the parameter refresh period of the electricity meter and sends a calibration instruction to the electricity meter;

[0099] Among them, the calibration instruction includes the number N of actual parameters that the electricity meter needs to obtain;

[0100] S306, after receiving the calibration instruction, the electricity meter sends an acknowledgment instruction to the calibration device;

[0101] S308, delay for one parameter refresh period, and start to obtain multiple actual parameters of itself according to the parameter refresh period;

[0102] S310, whether the number of actual parameters reaches N. If so, execute step S312. If not, execute step S308;

[0103] S312, calculate the actual average value of N actual parameters;

[0104] S314, when receiving the standard average value sent by the calibration device, calibrate its own parameters according to the actual average value, the standard average value, and its own metering pulse constant;

[0105] S316, when receiving the acknowledgment information of the electricity meter, obtain N standard parameters from the standard electricity meter according to the parameter refresh period;

[0106] S318, whether the number of standard parameters reaches N. If so, execute step S320. If not, execute step S316;

[0107] S320, calculate the standard average value of N and the standard parameters;

[0108] S322, send the standard average value to the electricity meter.

[0109] In this embodiment, a 0.05 - level standard watt - hour meter is used to calibrate a 0.2 - level three - phase watt - hour meter at the Ib point using different calibration methods. After calibration, the error test is verified at the Ib point using this standard watt - hour meter. When calibrating using the power method, since the standard source of the standard watt - hour meter is not very stable, the combined - phase error and each phase - by - phase error of the watt - hour meter at the Ib point can reach within ±0.1%. After repeated calibration many times, the combined - phase error and each phase - by - phase error of the watt - hour meter at the Ib point can occasionally reach within ±0.04%. When calibrating using the calibration method of the watt - hour meter provided in this application, the combined - phase error and each phase - by - phase error of the watt - hour meter at the Ib point can reach within ±0.02%. When calibrating using the pulse method, the combined - phase error and each phase - by - phase error of the watt - hour meter at the Ib point can reach within ±0.015%. When calibrating the three - phase meter using the power method at the Ib point, the time required to complete one calibration of the three - phase meter is about 40S (including the power - on stabilization time of the standard watt - hour meter, the same hereinafter). For the calibration method of the watt - hour meter provided in this application, the time required to complete one calibration of the three - phase meter at the Ib point is about 50S. When calibrating the three - phase meter using the pulse method at the Ib point, the time required to complete one calibration of the three - phase meter is about 240S. If it is a small current, such as 10% Ib point, when calibrating the three - phase meter using the pulse method, the time required to complete one calibration of the three - phase meter is about 340S, while the calibration times of the other two calibration methods for small currents basically do not change.

[0110] The above - mentioned comparative tests show that the calibration method of the watt - hour meter provided in this application is a stable and efficient calibration method, which can effectively solve the problem of low accuracy in calibrating the watt - hour meter using the power method when the existing standard source fluctuates unstably, and can also effectively solve the problem of low efficiency in calibrating the watt - hour meter using the pulse method. For high - precision meters of 0.2 - level (including) and above, the average - power calibration method of the present invention has more obvious effects.

[0111] In some embodiments of this application, as Figure 4 shown, a calibration device 400 for a watt - hour meter is proposed. The calibration device includes: an acquisition unit 402, configured to obtain a plurality of actual parameters of the watt - hour meter according to the parameter refresh period of the watt - hour meter in response to a calibration instruction; a determination unit 404, configured to determine the actual average value of the plurality of actual parameters; a calibration unit 406, configured to calibrate the watt - hour meter according to the actual average value, the standard average value, and the metering pulse constant of the watt - hour meter when receiving the standard average value; wherein, the standard average value is determined according to a plurality of standard parameters, the standard parameters are obtained from the standard watt - hour meter according to the parameter refresh period, the number of standard parameters is the same as the number of actual parameters, and the standard parameters and the actual parameters are acquired synchronously.

[0112] The calibration device 400 for an electric energy meter provided by the present invention calibrates the electric energy meter by obtaining multiple actual parameters of the electric energy meter, determining the actual average value of the multiple actual parameters, and then combining the actual average value of the electric energy meter with the standard average value of a standard electric energy meter, which can effectively eliminate the error caused by the unstable fluctuation of the standard source and ensure the calibration accuracy of the electric energy meter. At the same time, by combining the actual average value, the standard average value and the metering pulse constant of the electric energy meter for calibration, it is possible to avoid phase-by-phase and step-by-step calibration, thus ensuring both the calibration accuracy of the electric energy meter and improving the calibration efficiency of the electric energy meter.

[0113] In some embodiments, optionally, the obtaining unit 402 is specifically configured to: in response to a calibration instruction, delay for a parameter refresh period, and obtain the first actual parameter; and obtain the second actual parameter to the Nth actual parameter according to the parameter refresh period, where N is an integer greater than or equal to 2.

[0114] In this embodiment, when the electric energy meter receives the calibration instruction sent by the calibration device, it can delay for a parameter refresh period and then start obtaining the actual parameters of the electric energy meter itself. That is, when the electric energy meter receives the calibration instruction, it does not immediately start obtaining its own actual parameters, but after a parameter refresh period, it starts obtaining the first actual parameter. At the same time, the electric energy meter can also send a response message to the calibration device to notify the calibration device that the electric energy meter has received the calibration instruction and can start obtaining the actual parameters of the electric energy meter after a parameter refresh period. At this time, the calibration device can start obtaining the standard parameters of the standard electric energy meter. It can be understood that the electric energy meter starts obtaining the actual parameters of the electric energy meter after a parameter refresh period after receiving the calibration instruction, and the calibration device starts obtaining the standard parameters of the standard electric energy meter after receiving the response message of the electric energy meter. Therefore, it can ensure that the actual parameters of the electric energy meter and the standard parameters of the standard electric energy meter can be obtained synchronously, thereby ensuring the calibration accuracy of the electric energy meter.

[0115] Further, after the electric energy meter obtains the first actual parameter, it can obtain the second actual parameter to the Nth actual parameter according to the parameter refresh period of the electric energy meter, where N is an integer greater than or equal to 2. That is, the actual parameters of the electric energy meter should be obtained at least two, and then the actual average value can be determined according to at least two actual parameters to ensure the calibration accuracy of the electric energy meter. The specific value of N can be set according to the calibration accuracy of the electric energy meter. When the calibration accuracy of the electric energy meter is relatively low, the value of N can be set relatively small. On the contrary, when the calibration accuracy of the electric energy meter is relatively high, the value of N can be set relatively large, so as to improve the calibration accuracy of the electric energy meter.

[0116] In some embodiments of the present application, such as Figure 5As shown, a calibration device 500 for an electric energy meter is proposed for calibrating equipment. The calibration device includes: an acquisition unit 502 for acquiring the parameter refresh period of the electric energy meter; and acquiring a plurality of standard parameters of the standard electric energy meter according to the parameter refresh period; a determination unit 504 for determining the standard average value of the plurality of standard parameters; a sending unit 506 for sending the standard average value to the electric energy meter; wherein, the electric energy meter is used to calibrate the electric energy meter according to the actual average value, the standard average value and the metering pulse constant of the electric energy meter when receiving the standard average value. The actual average value is determined according to a plurality of actual parameters of the electric energy meter, the actual parameters are obtained from the electric energy meter according to the parameter refresh period, the number of standard parameters is the same as the number of actual parameters, and the actual parameters and the standard parameters are acquired synchronously.

[0117] The calibration device 500 for an electric energy meter provided by the present invention acquires a plurality of standard parameters of the standard electric energy meter, determines the standard average value of the plurality of standard parameters, and then sends the standard average value to the electric energy meter, so that during the calibration of the electric energy meter, the actual average value can be combined with the standard average value of the standard electric energy meter to calibrate the electric energy meter, which can effectively eliminate the error caused by the unstable fluctuation of the standard electric energy meter and ensure the calibration accuracy of the electric energy meter. At the same time, by combining the actual average value, the standard average value and the metering pulse constant of the electric energy meter for calibration, it is possible to avoid phase-by-phase and step-by-step calibration, thus ensuring both the calibration accuracy of the electric energy meter and improving the calibration efficiency of the electric energy meter.

[0118] In some embodiments, optionally, the sending unit 506 is further configured to send a calibration instruction to the electric energy meter; the acquisition unit 502 is specifically configured to acquire the first standard parameter when receiving the response information sent by the electric energy meter; and acquire the second standard parameter to the (N - 1)th standard parameter according to the parameter refresh period; where N is an integer greater than or equal to 2.

[0119] In this embodiment, when the electricity meter needs to be calibrated, the calibration device can first send a calibration instruction to the electricity meter. When the electricity meter receives the calibration instruction sent by the calibration device, it can delay for a parameter refresh period and then start acquiring its own actual parameters. At the same time, the electricity meter can also send a response message to the calibration device to notify the calibration device that the electricity meter has received the calibration instruction and can start acquiring the actual parameters of the electricity meter after a parameter refresh period. At this time, after the calibration device receives the response message sent by the electricity meter, the calibration device can start acquiring the first standard parameter of the standard electricity meter. It can be understood that the electricity meter starts acquiring its actual parameters after a parameter refresh period from receiving the calibration instruction, while the calibration device starts acquiring the standard parameters of the standard electricity meter after receiving the response message from the electricity meter. Therefore, it can ensure that the actual parameters of the electricity meter and the standard parameters of the standard electricity meter can be acquired synchronously, thereby ensuring the calibration accuracy of the electricity meter.

[0120] Further, after the calibration device acquires the first standard parameter of the standard electricity meter, it can acquire the second standard parameter to the Nth standard parameter according to the parameter refresh period of the electricity meter, where N is an integer greater than or equal to 2. That is, at least two actual parameters of the electricity meter and the standard parameters of the standard electricity meter need to be acquired. Further, the actual average value can be determined based on at least two actual parameters, and the standard average value can be determined based on at least two standard parameters to ensure the calibration accuracy of the electricity meter.

[0121] In some embodiments, optionally, the determining unit 504 is further configured to determine the number of actual parameters according to the calibration accuracy of the electricity meter; wherein, the calibration instruction includes the number of actual parameters.

[0122] In this embodiment, before the calibration device sends a calibration instruction to the electricity meter, it can first determine the number of actual parameters that the electricity meter needs to acquire. Specifically, the calibration device can determine the number of actual parameters according to the calibration accuracy required by the electricity meter. Correspondingly, the number of standard parameters of the standard electricity meter is the same as the number of actual parameters of the electricity meter.

[0123] That is, when the calibration accuracy of the electricity meter is relatively low, the number of actual parameters and standard parameters can be relatively small. On the contrary, when the calibration accuracy of the electricity meter is relatively high, the number of actual parameters and standard parameters can be relatively large, thereby improving the calibration accuracy of the electricity meter.

[0124] In some embodiments of the present application, such as Figure 6As shown, an electronic device 600 is proposed, including: a processor 602 and a memory 604. The memory 604 stores programs or instructions that can be run on the processor 602. When the programs or instructions are executed by the processor 602, the steps of the calibration method of the electricity meter in any one of the above technical solutions are implemented.

[0125] The electronic device 600 provided by the present invention includes a memory 604 and a processor 602, and also includes programs or instructions stored on the memory 604. When the programs or instructions are executed by the processor 602, the steps of the calibration method of the electricity meter in the above technical solutions can be implemented. Therefore, the electronic device has all the beneficial effects of the above calibration method of the electricity meter, which will not be elaborated here.

[0126] In some embodiments of the present application, a readable storage medium is proposed, on which programs or instructions are stored. When the programs or instructions are executed by a processor, the calibration method of the electricity meter in any one of the above technical solutions is implemented.

[0127] The readable storage medium provided by the present invention stores programs or instructions. Since the programs or instructions can implement the calibration method of the electricity meter in any one of the above technical solutions when executed by a processor, the readable storage medium has all the beneficial effects of the above calibration method of the electricity meter, which will not be elaborated here.

[0128] A computer-readable storage medium can be a tangible device that can retain and store instructions for use by an instruction execution device. A computer-readable storage medium can 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 computer-readable storage media includes: portable computer floppy disks, hard disks, random access memories (RAMs), read-only memories (ROMs), erasable programmable read-only memories (EPROMs or flash memories), static random access memories (SRAMs), portable compact disc read-only memories (CD-ROMs), digital versatile disks (DVDs), memory cards, floppy disks, coding mechanical devices (such as punched cards or grooves with raised structures recording instructions), and any suitable combination of the above devices. The computer-readable storage medium used herein should not be construed as a signal per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagated through waveguides or other transmission media, or electrical signals transmitted through wires, etc.

[0129] In the description of the present invention, the term "a plurality of" means two or more, unless otherwise clearly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention; the terms "connection", "installation", "fixation", etc. should all 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 those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0130] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0131] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A calibration method for an electric energy meter, which is executed by the electric energy meter, characterized in that The calibration method includes: In response to a calibration instruction, according to the parameter refresh period of the electricity meter, obtain multiple actual parameters of the electricity meter; Determine the actual average value of the multiple actual parameters; When receiving the standard average value, calibrate the electricity meter according to the actual average value, the standard average value, and the metering pulse constant of the electricity meter; Wherein, the standard average value is determined according to multiple standard parameters, the standard parameters are obtained from a standard electricity meter according to the parameter refresh period, the number of the standard parameters is the same as the number of the actual parameters, and the standard parameters and the actual parameters are obtained synchronously.

2. The calibration method according to claim 1, wherein The step of, in response to a calibration instruction, according to the parameter refresh period of the electricity meter, obtaining multiple actual parameters of the electricity meter includes: In response to the calibration instruction, delay for one parameter refresh period to obtain the first actual parameter; According to the parameter refresh period, obtain the second actual parameter to the Nth actual parameter; Wherein, N is an integer greater than or equal to 2.

3. A calibration method for an electric energy meter, which is executed by a calibration device, is characterized in that The calibration method includes: Obtain the parameter refresh period of the electricity meter; According to the parameter refresh period, obtain multiple standard parameters of a standard electricity meter; Determine the standard average value of the multiple standard parameters; Send the standard average value to the electricity meter; Wherein, the electricity meter is used to calibrate itself according to the actual average value, the standard average value, and the metering pulse constant of the electricity meter when receiving the standard average value. The actual average value is determined according to multiple actual parameters of the electricity meter, the actual parameters are obtained from the electricity meter according to the parameter refresh period, the number of the standard parameters is the same as the number of the actual parameters, and the actual parameters and the standard parameters are obtained synchronously.

4. The calibration method according to claim 3, wherein The step of, according to the parameter refresh period, obtaining multiple standard parameters of a standard electricity meter includes: Send a calibration instruction to the electricity meter; When receiving the response information sent by the electricity meter, obtain the first standard parameter; According to the parameter refresh period, obtain the second standard parameter to the (N - 1)th standard parameter; Wherein, N is an integer greater than or equal to 2.

5. The calibration method according to claim 4, characterized in that Before sending the calibration instruction to the electricity meter, the calibration method further includes: Determine the number of the actual parameters according to the calibration accuracy of the electricity meter; Wherein, the number of the actual parameters is included in the calibration instruction.

6. A calibration device for an electricity meter, used for the electricity meter, characterized in that, The calibration device includes: An acquisition unit, configured to, in response to a calibration instruction, obtain multiple actual parameters of the electricity meter according to the parameter refresh period of the electricity meter; A determination unit, configured to determine the actual average value of the multiple actual parameters; A calibration unit, configured to calibrate the electricity meter according to the actual average value, the standard average value, and the metering pulse constant of the electricity meter when receiving the standard average value; Wherein, the standard average value is determined according to a plurality of standard parameters, the standard parameters are obtained from a standard watt-hour meter according to the parameter refresh period, the number of the standard parameters is the same as that of the actual parameters, and the standard parameters and the actual parameters are obtained synchronously.

7. The calibration device according to claim 6, characterized in that, The obtaining unit is specifically configured to: In response to the calibration instruction, delay for one parameter refresh period, and obtain the first actual parameter; According to the parameter refresh period, obtain the second actual parameter to the Nth actual parameter; Wherein, N is an integer greater than or equal to 2.

8. A calibration device for an electric energy meter, used for calibrating equipment, characterized in that, The calibration device includes: An obtaining unit, configured to obtain the parameter refresh period of the watt-hour meter; and According to the parameter refresh period, obtain a plurality of standard parameters of the standard watt-hour meter; A determining unit, configured to determine the standard average value of the plurality of standard parameters; A sending unit, configured to send the standard average value to the watt-hour meter; Wherein, the watt-hour meter is configured to, when receiving the standard average value, calibrate the watt-hour meter according to the actual average value, the standard average value, and the metering pulse constant of the watt-hour meter. The actual average value is determined according to a plurality of actual parameters of the watt-hour meter, the actual parameters are obtained from the watt-hour meter according to the parameter refresh period, the number of the standard parameters is the same as that of the actual parameters, and the actual parameters and the standard parameters are obtained synchronously.

9. The calibration device according to claim 8, characterized in that, The sending unit is further configured to send a calibration instruction to the watt-hour meter; The obtaining unit is specifically configured to, when receiving the response information sent by the watt-hour meter, obtain the first standard parameter; and According to the parameter refresh period, obtain the second standard parameter to the (N-1)th standard parameter; Wherein, N is an integer greater than or equal to 2.

10. The calibration device according to claim 9, characterized in that, The determining unit is further configured to determine the number of the actual parameters according to the calibration accuracy of the watt-hour meter; Wherein, the calibration instruction includes the number of the actual parameters.

11. An electronic device, characterized in that, Comprising: A processor and a memory, the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the calibration method of the watt-hour meter according to any one of claims 1 to 5 are implemented.

12. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by the processor, the steps of the calibration method of the watt-hour meter according to any one of claims 1 to 5 are implemented.

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