Data verification method and system for electric energy meter verification system

Abstract

The invention discloses an electric energy meter verification system data verification method and system, and relates to the technical field of electric power metering verification, and the method comprises the steps: starting an electric energy meter verification system, initializing verification equipment, building data communication connection with a to-be-verified electric energy meter, and collecting the initial data of the electric energy meter; setting verification parameters, pre-checking the electric energy meter, sending a standard signal to the electric energy meter, enabling the electric energy meter to operate under the set verification parameters, and collecting operation data of the electric energy meter in the verification process in real time; carrying out primary processing on the collected data, calculating a verification error, and carrying out integrity, accuracy and rationality verification on the processed data according to a preset verification algorithm; and outputting verification information according to the data verification result, and after verification is finished, closing the electric energy meter verification system and disconnecting the data communication connection with the electric energy meter. According to the invention, the efficiency and accuracy of electric energy meter verification are improved, the operation complexity is reduced, and the reliability and applicability of the verification result are enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of electric power measurement and verification, and in particular to a data verification method and system for an electric energy meter verification system. Background Art

[0002] In the operation of the power system, the accuracy of the energy meter, as the core metering equipment, directly affects the billing and management of electric energy. With the rapid development of the power industry and the promotion of smart grid technology, higher requirements are placed on the calibration technology of energy meters. Traditional energy meter calibration mainly relies on manual operation and semi-automatic equipment. Although these methods met the basic needs in the early stage, they have obvious shortcomings in processing large amounts of data, ensuring data accuracy and operating efficiency. In addition, with the diversification of energy meter types, such as the widespread use of single-phase meters and three-phase meters, more accurate and reliable calibration methods are needed to ensure that the performance of various types of energy meters meets the standards.

[0003] In the prior art, the electric energy meter calibration system usually includes basic electrical parameter settings and detection, but these systems often lack in-depth analysis and verification of data integrity, accuracy and rationality during the calibration process. For example, the prior art fails to effectively integrate real-time data acquisition and instant data analysis, resulting in data processing delays and failure to promptly detect abnormal responses of the electric energy meter. In addition, the existing calibration equipment also has limitations in terms of operational complexity and flexibility in calibration parameter settings. These problems may lead to inaccurate calibration results, affecting the rights and interests of power companies and users.

[0004] In view of the above problems, the present invention provides a data verification method for an electric energy meter calibration system. This method not only improves the calibration efficiency but also ensures the integrity, accuracy and rationality of the data through an automated calibration process and advanced data verification algorithms. The invention realizes the automatic collection of the initial data of the electric energy meter and the precise setting of the calibration parameters by initializing the calibration equipment and establishing a stable data communication connection with the electric energy meter. During the calibration process, by sending standard signals and collecting operating data in real time, combined with advanced data processing algorithms, the calibration data is deeply analyzed, the calibration error is calculated, and a multi-dimensional calibration is performed according to a preset calibration algorithm, thereby greatly improving the reliability and accuracy of the calibration. Summary of the invention

[0005] In view of the above-mentioned problems, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is: how to solve the problems of the existing electric energy meter verification technology, such as complex operation, delayed data processing and insufficient verification accuracy.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a data verification method for an electric energy meter calibration system, comprising: starting the electric energy meter calibration system, initializing the calibration equipment, and establishing a data communication connection with the electric energy meter to be calibrated, while collecting the initial data of the electric energy meter; setting the calibration parameters, and pre-checking the electric energy meter, sending a standard signal to the electric energy meter, so that the electric energy meter operates under the set calibration parameters, and collecting the operating data of the electric energy meter during the calibration process in real time; performing preliminary processing on the collected data, calculating the calibration error, and verifying the integrity, accuracy and rationality of the processed data according to a preset calibration algorithm; outputting the calibration information according to the data verification result, and after the calibration is completed, shutting down the electric energy meter calibration system and disconnecting the data communication connection with the electric energy meter.

[0008] As a preferred scheme of the data verification method of an electric energy meter calibration system described in the present invention, wherein: the calibration equipment refers to the equipment that needs to be calibrated; the electric energy meters to be calibrated include three-phase electric energy meters and single-phase electric energy meters; the initial data includes number, model, manufacturer and calibration date information.

[0009] As a preferred scheme of the data verification method of the electric energy meter calibration system described in the present invention, wherein: the calibration parameters include calibration current, voltage, power factor and calibration time; the pre-inspection of the electric energy meter includes checking that the electric energy meter is correctly connected to the calibration equipment without looseness or poor contact, sending a basic current or voltage signal to the electric energy meter, checking whether the electric energy meter can respond and record the reading, if the display and reading of the electric energy meter are normal, the pre-inspection is completed; the operating data in the calibration process includes voltage, current, power and electric energy.

[0010] As a preferred scheme of the data verification method of the electric energy meter calibration system described in the present invention, wherein: the operation of the electric energy meter under the set calibration parameters includes setting the necessary calibration parameters through the calibration equipment, the calibration equipment sends standard current and voltage signals to the electric energy meter, the electric energy meter operates under the action of the standard signals, and at the same time the calibration system collects the operating data of the electric energy meter in real time, including the measurement values ​​of current, voltage, power and electric energy; the calibration parameter setting, standard signal sending and data collection in the pre-inspection and calibration process of the three-phase electric energy meter and the single-phase electric energy meter are different.

[0011] As a preferred scheme of the data verification method of the electric energy meter calibration system described in the present invention, wherein: the preliminary processing of the collected data includes time synchronization of the standard signal and the response data of the electric energy meter; the calculation of the calibration error includes using the standard signal sent by the calibration equipment as a reference to calculate the difference between the actual response of the electric energy meter and the theoretical value.

[0012] As a preferred solution of the data verification method for an electric energy meter calibration system described in the present invention, wherein: the verification algorithm includes counting the data points of each measurement cycle, checking whether it is consistent with the expected amount of data collected, and if it is consistent with the expected amount of data collected, the integrity check passes; comparing the reading of the electric energy meter with the output of the standard signal, calculating the error rate, and judging whether the error is within the allowable standard error range, if the error rate is within the preset standard error range, the accuracy check passes; analyzing whether the behavior of the data conforms to the laws of physics and electricity, and if it conforms to the laws of physics and electricity, the rationality check passes.

[0013] As a preferred scheme of the data verification method of an electric energy meter calibration system described in the present invention, wherein: the output of calibration information based on the data verification result includes outputting a calibration report if the integrity, accuracy and rationality checks are passed; if any one of the integrity, accuracy and rationality checks fails, recording an error message and prompting for re-calibration; if the calibration passes, then after the calibration is completed, the electric energy meter calibration system is turned off and the data communication connection with the electric energy meter is disconnected.

[0014] Another object of the present invention is to provide a system of data verification method for an electric energy meter verification system, which can solve a data verification problem of an electric energy meter verification system by constructing a data verification system.

[0015] In order to solve the above technical problems, the present invention provides the following technical solutions: a data verification system for an electric energy meter calibration system, comprising a connection module, a data acquisition module, a verification module and a result output module; the connection module is used to start the electric energy meter calibration system, initialize the calibration equipment, and establish a data communication connection with the electric energy meter to be calibrated, and at the same time collect the initial data of the electric energy meter; the data acquisition module is used to set the calibration parameters, and pre-check the electric energy meter, send a standard signal to the electric energy meter, so that the electric energy meter operates under the set calibration parameters, and collect the operating data of the electric energy meter during the calibration process in real time; the verification module is used to perform preliminary processing on the collected data, calculate the calibration error, and verify the integrity, accuracy and rationality of the processed data according to a preset calibration algorithm; the result output module is used to output the calibration information according to the data verification result, and after the calibration is completed, the electric energy meter calibration system is closed and the data communication connection with the electric energy meter is disconnected.

[0016] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned method for verifying data of an electric energy meter verification system when executing the computer program.

[0017] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the above-mentioned method for verifying data of an electric energy meter verification system.

[0018] The beneficial effects of the present invention are as follows: the data verification method of the electric energy meter calibration system provided by the present invention initializes the calibration equipment and establishes a data communication connection with the electric energy meter. After collecting the initial data of the electric energy meter, it ensures the normal operation of the electric energy meter under the set calibration parameters by pre-checking and sending standard signals, and collects the operation data in real time. Subsequently, these data are preliminarily processed and error calculated, and the data integrity, accuracy and rationality are verified using a verification algorithm, thereby significantly improving the efficiency and accuracy of the electric energy meter calibration. Not only does it ensure the real-time and accuracy of data processing, but it also reduces the complexity of operations through automation and standardized processes, enhances the reliability and applicability of the calibration results, and makes its application in the power industry more extensive and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0020] Figure 1 The present invention provides a flowchart of a data verification method for an electric energy meter verification system according to the first embodiment of the present invention.

[0021] Figure 2 A structural diagram of a data verification system for an electric energy meter calibration system provided in the second embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Example 1, reference Figure 1, which is the first embodiment of the present invention, and provides a data verification method for an electric energy meter verification system, including: starting the electric energy meter verification system, initializing the verification equipment, and establishing a data communication connection with the electric energy meter to be verified, and collecting the initial data of the electric energy meter at the same time; setting the verification parameters, and pre-checking the electric energy meter, sending a standard signal to the electric energy meter, so that the electric energy meter operates under the set verification parameters, and collecting the operating data of the electric energy meter during the verification process in real time; performing preliminary processing on the collected data, calculating the verification error, and verifying the integrity, accuracy and rationality of the processed data according to a preset verification algorithm; outputting the verification information according to the data verification result, and after the verification is completed, closing the electric energy meter verification system and disconnecting the data communication connection with the electric energy meter.

[0025] S1. Start the electric energy meter calibration system, initialize the calibration equipment, establish a data communication connection with the electric energy meter to be calibrated, and collect the initial data of the electric energy meter.

[0026] Calibration equipment refers to equipment that needs to be calibrated; the electric energy meters to be calibrated include three-phase electric energy meters and single-phase electric energy meters; the initial data includes number, model, manufacturer and calibration date information, etc.

[0027] S2. Set the calibration parameters according to the calibration procedures, perform a pre-inspection on the electric energy meter, send a standard signal to the electric energy meter, make the electric energy meter operate under the set calibration parameters, and collect the operating data of the electric energy meter in real time during the calibration process.

[0028] Set the verification parameters according to the verification procedures and historical data. The verification parameters include verification current, voltage, power factor and verification time.

[0029] Check that the energy meter is correctly connected to the calibration equipment without looseness or poor contact. Send a basic current or voltage signal to the energy meter to check whether the energy meter can respond and record the reading to ensure normal operation before calibration. If the meter display and reading are normal, the pre-inspection is completed.

[0030] The operating data during the calibration process includes voltage, current, power and electric energy.

[0031] The necessary calibration parameters are set through the calibration equipment, and the calibration equipment sends standard current and voltage signals to the electric energy meter. The electric energy meter operates under the action of the standard signals. At the same time, the calibration system collects the operating data of the electric energy meter in real time, including the measurement values ​​of current, voltage, power and electric energy; these data are used to monitor the performance of the electric energy meter, and the display error of the electric energy meter is calculated through subsequent analysis to verify its accuracy and compliance.

[0032] The calibration parameter settings, standard signal transmission and data collection during the pre-inspection and calibration process of three-phase electric energy meters and single-phase electric energy meters are different.

[0033] The calibration parameters of single-phase and three-phase energy meters may be different, such as the level of current and voltage and the wiring method. When setting up the calibration system, it is necessary to select the appropriate parameters and connection configuration according to the type of energy meter.

[0034] For a three-phase energy meter, three sets of current and voltage signals need to be sent, corresponding to the three phases respectively; while a single-phase energy meter only needs one set of current and voltage signals. This requires the calibration equipment to be able to configure and provide standard signals of different modes to adapt to different types of energy meters.

[0035] Three-phase energy meters usually need to collect more data points, such as three-phase voltage, current, power factor and total power, while single-phase energy meters are relatively simple. When performing data analysis, it is also necessary to adjust the error calculation method and evaluation criteria according to the number of phases of the energy meter.

[0036] S3. Perform preliminary processing on the collected data, calculate the verification error, and verify the integrity, accuracy and rationality of the processed data according to the preset verification algorithm.

[0037] The standard signal and the response data of the electric energy meter are synchronized in time; the standard signal sent by the calibration equipment is used as a reference to calculate the difference between the actual response of the electric energy meter and the theoretical value.

[0038] Count the data points of each measurement cycle and check whether it is consistent with the expected amount of data collected. If it is consistent with the expected amount of data collected, the integrity check passes;

[0039] Compare the reading of the electric energy meter with the output of the standard signal, calculate the error rate, and determine whether the error is within the allowable standard error range. If the error rate is within the preset standard error range, the accuracy check passes;

[0040] Analyze whether the behavior of the data complies with the laws of physics and electricity. For example, whether the calculation of power complies with the product of voltage and current, and whether there are non-physical mutations or abnormal values. If it complies with the laws of physics and electricity, the rationality check passes.

[0041] S4. Output the calibration information according to the data verification result. After the calibration is completed, turn off the electric energy meter calibration system and disconnect the data communication connection with the electric energy meter.

[0042] If the integrity, accuracy and rationality checks are passed, the calibration report will be output; if any of the integrity, accuracy and rationality checks fail, the error message will be recorded and a re-calibration prompt will be given; if the calibration passes, after the calibration is completed, the electric energy meter calibration system will be turned off and the data communication connection with the electric energy meter will be disconnected.

[0043] Example 2, reference Figure 2, which is the second embodiment of the present invention, is different from the previous embodiment in that it provides a data verification system for an electric energy meter calibration system, including: a connection module 100, a data acquisition module 200, a verification module 300 and a result output module 400.

[0044] The connection module 100 is used to start the electric energy meter verification system, initialize the verification equipment, establish a data communication connection with the electric energy meter to be verified, and collect the initial data of the electric energy meter.

[0045] The data acquisition module 200 is used to set the calibration parameters, perform pre-inspection on the electric energy meter, send a standard signal to the electric energy meter, make the electric energy meter operate under the set calibration parameters, and collect the operation data of the electric energy meter in real time during the calibration process.

[0046] The verification module 300 is used to perform preliminary processing on the collected data, calculate the verification error, and verify the integrity, accuracy and rationality of the processed data according to a preset verification algorithm.

[0047] The result output module 400 is used to output verification information according to the data verification result. After the verification is completed, the electric energy meter verification system is turned off and the data communication connection with the electric energy meter is disconnected.

[0048] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0049] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0050] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0051] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0052] Embodiment 3 is the third embodiment of the present invention. It is different from the first two embodiments in that it is used to verify the technical effects adopted in the present invention so as to verify the real effects of the method.

[0053] Traditional methods involve semi-automated verification equipment, mostly relying on manual setting of verification parameters and reading of results. These methods may not have automated functions in data processing and verification, and therefore usually require more manual intervention and operation time.

[0054] This embodiment uses the traditional method and the method of the present invention to perform detection simultaneously, and the detection comparison results are shown in the following Table 1:

[0055] Table 1 Comparison table between traditional method and method of the present invention

[0056]

[0057] The table clearly shows the performance difference between the electric energy meter verification system of the present invention and the traditional method. By introducing automated processes and data verification algorithms, the method of the present invention significantly shortens the verification time, greatly reduces the error rate, improves data integrity, and reduces the complexity of operation and the need for manual intervention. These improvements not only improve the verification efficiency and accuracy, but also enhance the reliability of the verification results, making this method more suitable for the needs of modern power systems.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A data verification method for an electric energy meter verification system, characterized in that: include, Start the electric energy meter verification system, initialize the verification equipment, establish a data communication connection with the electric energy meter to be verified, and collect the initial data of the electric energy meter; Set the calibration parameters, pre-check the electric energy meter, send standard signals to the electric energy meter, make the electric energy meter operate under the set calibration parameters, and collect the operating data of the electric energy meter in real time during the calibration process; Perform preliminary processing on the collected data, calculate the verification error, and verify the integrity, accuracy and rationality of the processed data according to the preset verification algorithm; The calibration information is output according to the data verification result. After the calibration is completed, the electric energy meter calibration system is turned off and the data communication connection with the electric energy meter is disconnected.

2. The data verification method of an electric energy meter verification system according to claim 1, characterized in that: The calibration equipment refers to the equipment that needs to be calibrated; The electric energy meter to be tested includes a three-phase electric energy meter and a single-phase electric energy meter; The initial data includes serial number, model, manufacturer and verification date information.

3. The data verification method of an electric energy meter verification system according to claim 2, characterized in that: The verification parameters include verification current, voltage, power factor and verification time; The pre-checking of the electric energy meter includes checking whether the electric energy meter is correctly connected to the calibration equipment without looseness or poor contact, sending a basic current or voltage signal to the electric energy meter, checking whether the electric energy meter can respond and record the reading, and if the display and reading of the electric energy meter are normal, the pre-checking is completed; The operating data during the verification process includes voltage, current, power and electric energy.

4. The data verification method of an electric energy meter verification system according to claim 3, characterized in that: The operation of the electric energy meter under the set verification parameters includes setting necessary verification parameters through the verification equipment, the verification equipment sending standard current and voltage signals to the electric energy meter, the electric energy meter operates under the action of the standard signals, and the verification system collects the operation data of the electric energy meter in real time, including the measured values ​​of current, voltage, power and electric energy; The calibration parameter settings, standard signal transmission and data collection during the pre-inspection and calibration process of three-phase electric energy meters and single-phase electric energy meters are different.

5. The data verification method of an electric energy meter verification system according to claim 4, characterized in that: The preliminary processing of the collected data includes time synchronization of the standard signal and the response data of the electric energy meter; The calculation of the verification error includes using the standard signal sent by the verification device as a reference to calculate the difference between the actual response of the electric energy meter and the theoretical value.

6. A data verification method for an electric energy meter verification system as claimed in claim 5, characterized in that: The verification algorithm includes counting the data points of each measurement cycle and checking whether the amount of data collected is consistent with the expected amount of data collected. If the amount of data collected is consistent with the expected amount of data collected, the integrity check passes; Compare the reading of the electric energy meter with the output of the standard signal, calculate the error rate, and determine whether the error is within the allowable standard error range. If the error rate is within the preset standard error range, the accuracy check passes; Analyze whether the behavior of the data complies with the physical and electrical laws. If it does, the rationality check passes.

7. The data verification method of an electric energy meter verification system according to claim 6, characterized in that: Outputting verification information according to the data verification result includes outputting a verification report if the integrity, accuracy and rationality verification are passed; If any of the completeness, accuracy and rationality checks fails, an error message will be recorded and a re-verification prompt will be issued; If the verification is passed, after the verification is completed, the electric energy meter verification system is turned off and the data communication connection with the electric energy meter is disconnected.

8. A system using the data verification method of an electric energy meter verification system as claimed in any one of claims 1 to 7, characterized in that: It comprises a connection module (100), a data acquisition module (200), a verification module (300) and a result output module (400); The connection module (100) is used to start the electric energy meter verification system, initialize the verification equipment, establish a data communication connection with the electric energy meter to be verified, and collect initial data of the electric energy meter; The data acquisition module (200) is used to set the verification parameters, perform a pre-inspection on the electric energy meter, send a standard signal to the electric energy meter, make the electric energy meter operate under the set verification parameters, and collect the operation data of the electric energy meter in the verification process in real time; The verification module (300) is used to perform preliminary processing on the collected data, calculate the verification error, and verify the integrity, accuracy and rationality of the processed data according to a preset verification algorithm; The result output module (400) is used to output verification information according to the data verification result, and after the verification is completed, the electric energy meter verification system is turned off and the data communication connection with the electric energy meter is disconnected.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of a data verification method for an electric energy meter verification system according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of a data verification method for an electric energy meter verification system according to any one of claims 1 to 7 are implemented.

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