An online checking method, device and medium of an electric energy meter automatic verification device

Abstract

The application discloses an online checking method and device of an electric energy meter automatic verification device and a medium, and comprises the following steps: when a checking task is performed, a checking standard electric energy meter is installed on a verification meter position of the electric energy meter automatic verification device to be checked, and the checking standard electric energy meter, the electric energy meter automatic verification device and a data terminal are connected to a verification terminal. According to the analysis on whether the verification performance of the electric energy meter automatic verification device is qualified, the online checking method and device of the electric energy meter automatic verification device can quickly and accurately realize online load checking of the electric energy meter automatic verification device, the accuracy and functionality of the electric energy meter automatic verification device can be checked in time without affecting the normal verification task of the electric energy meter automatic verification device, the checking efficiency is improved, the online checking cost of the electric energy meter automatic verification device can be reduced, and the labor cost and time cost are reduced.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment and electrical engineering technology, and in particular to an online verification method, equipment and medium for an automated verification device for electricity meters. Background Technology

[0002] An automated verification device for electricity meters is a new type of automated instrument verification system, mainly used by electricity meter manufacturers and power company metering centers for the automated verification or testing of single-phase and three-phase electricity meters and other electricity metering instruments. To maintain the reliability of the electricity metering device and ensure the accuracy and reliability of the traceability and transmission of electricity values, periodic verification of the device according to relevant regulations is one effective approach.

[0003] The existing technology verifies the performance of this device by using a specialized high-precision verification standard table. The device is connected for each verification and removed after the verification is completed. Moreover, the high-precision verification standard table is bulky. Therefore, each verification of this device requires a lot of labor and time costs, which reduces the verification efficiency. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the online verification methods, equipment and media of the above-mentioned automatic verification devices for electricity meters, the present invention is proposed.

[0006] Therefore, the first objective of this invention is to provide an online verification method for an automated verification device for electricity meters, the purpose of which is to improve verification efficiency and save time by using a fast and effective method.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution, comprising the following steps, wherein when performing a verification task, the verification standard energy meter is installed on the verification position of the automatic verification device of the energy meter under test, the verification standard energy meter, the automatic verification device of the energy meter and the data terminal are connected to the verification terminal, the data terminal is connected to the verification standard energy meter and the automatic verification device of the energy meter, and the data terminal and the verification energy meter are connected to the verification terminal;

[0008] The verification terminal controls the acquisition of verification data generated by the automatic verification device of the electricity meter based on the verification task, and uses the verification terminal to control the automatic verification device of the electricity meter to perform the verification task, and acquires the verification data generated by the verification standard electricity meter based on the verification task;

[0009] The verification terminal obtains the verification data from the data terminal, and determines whether the verification performance of the automatic verification device for electricity meters is qualified according to the preset judgment rules for accurate device rating. Based on the verification data and the verification data, the verification performance of the automatic verification device for electricity meters is analyzed to determine whether it is qualified.

[0010] As a preferred embodiment of the online verification method for the automated verification device for electricity meters of the present invention, the method includes: analyzing the verification data and verification data of the verification unit obtained by the verification terminal, including:

[0011] Whether the verification data and the test data are consistent;

[0012] If the verification data and the test data do not exceed the preset judgment rules and the absolute values ​​of the two data are consistent, then the test performance of the test position is determined to be qualified. If the verification data and the test data exceed the preset judgment rules or the absolute values ​​of the two data are inconsistent, then the test performance of the test position is determined to be unqualified.

[0013] As a preferred embodiment of the online verification method of the automatic verification device for electricity meters described in this invention, the pulse data of the verification standard electricity meter is obtained according to the verification terminal;

[0014] Simultaneously, pulse data of the verification standard energy meter located in the automatic verification device for energy meters is acquired;

[0015] The basic and error repeatability tests of the calibration meter are performed by comparing the pulse data of the standard energy meter and the pulse data of the calibration meter.

[0016] In a preferred embodiment of the online verification method for the automatic verification device of the electricity meter according to the present invention, when the number of verification positions in the automatic verification device of the electricity meter that fail to meet the verification performance exceeds a preset number, the verification performance of the automatic verification device of the electricity meter is determined to be unqualified.

[0017] As a preferred embodiment of the online verification method for the automatic verification device of the electricity meter according to the present invention, the verification standard electricity meter simulates a fault according to the settings of the verification terminal, and stores the verification data when detecting the clock measurement accuracy of the automatic verification device of the electricity meter;

[0018] Simultaneously, the verification standard electricity meter sends the verification data to the verification terminal and / or data terminal;

[0019] The verification terminal uploads and saves the verification data it acquires.

[0020] As a preferred embodiment of the online verification method for the automatic verification device of the electricity meter according to the present invention, the verification data, verification data and verification performance data of the automatic verification device of the electricity meter obtained from the verification standard electricity meter are uploaded to the database of the data terminal for storage according to the set period.

[0021] The verification terminal periodically obtains historical verification performance data of the automatic verification device for electricity meters from the data terminal, establishes a rule base for device anomaly information, builds a mathematical model using digital twin technology, performs simulation based on the historical verification performance data, analyzes the verification performance changes of the verification units and verification positions of the automatic verification device for electricity meters, and performs positional simulation based on the rule base for device anomaly information corresponding to the verification performance changes, analyzes the distribution of anomaly points of the automatic verification device for electricity meters, predicts faults, and provides early warnings on the verification performance of the automatic verification device for electricity meters.

[0022] As a preferred embodiment of the online verification method of the automatic verification device for electricity meters according to the present invention, the verification terminal is further used to set verification parameters that match the verification task for the verification standard electricity meter, so that the verification standard electricity meter generates the verification data based on the verification task;

[0023] The verification terminal is also used to display information about the unqualified verification performance and issue an alarm if the analysis shows that the verification performance of the automatic verification device for the electricity meter is unqualified.

[0024] The second objective of this invention is to provide an online verification device for automated verification of electricity meters. The purpose of this device is to verify automated verification devices for single-phase and three-phase smart electricity meters, and to realize functions such as automatic verification, status monitoring, workstation inspection, conclusion analysis, and automatic fault early warning.

[0025] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including verifying a standard electricity meter, which is installed on an automatic electricity meter verification device;

[0026] The verification terminal is connected to the automatic verification device for the electricity meter and the verification standard electricity meter, and is also connected to the data terminal.

[0027] The verification terminal is connected to the verification standard electricity meter and the data terminal.

[0028] As a preferred embodiment of the online verification device of the automatic verification device for electricity meters according to the present invention, the verification standard electricity meter includes: a fault simulation module connected to the verification terminal for simulating various faults according to its settings; a clock module connected to the automatic verification device for detecting its clock measurement accuracy; a storage module for storing verification data; and a data communication module connected to the verification terminal or data terminal for sending verification data to both.

[0029] The verification terminal includes an error calculation module that connects to the verification standard electricity meter and the electricity meter automatic verification device, as well as a communication module and a data storage module set inside it;

[0030] The data terminal is equipped with a database, which allows the verification terminal to upload verification data to the database for storage.

[0031] The automatic verification device for electricity meters is equipped with a verification position, and the verification standard electricity meter is installed on the verification position.

[0032] The third objective of this invention is to provide an online verification method, device, and medium for an automated verification device for electricity meters. The purpose is to utilize a stored computer program to facilitate the execution of instructions by a processor, thereby improving efficiency.

[0033] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a method for online verification of an automatic verification device for electricity meters, which stores computer-executable instructions and, when executed by a processor, implements such computer-executable instructions.

[0034] The beneficial effects of this invention are as follows: By analyzing whether the verification performance of the automatic verification device for electricity meters is qualified, the automatic verification device for electricity meters can be quickly and accurately checked online under load. Without affecting the automatic verification device for electricity meters to perform normal verification tasks, faults in the automatic verification device for electricity meters in terms of accuracy and functionality can be detected in a timely manner, thereby improving the verification efficiency and comprehensively reducing the online verification cost of the automatic verification device for electricity meters, as well as reducing labor and time costs. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0036] Figure 1 This is a schematic diagram illustrating the application scenario of the online verification method of the automatic verification device for electricity meters according to the present invention.

[0037] Figure 2 This is a schematic diagram of the overall structure of the online verification equipment of the automatic verification device for electricity meters of the present invention.

[0038] Figure 3 This is a schematic diagram of the communication module structure of the online verification device of the automatic verification device for electricity meters of the present invention.

[0039] Figure 4 This is a schematic diagram of the online verification method, equipment, and medium of the automatic verification device for electricity meters of the present invention, showing the standard table verification data.

[0040] Figure 5 This is a schematic diagram illustrating the overall verification conclusion of the online verification method, equipment, and medium of the automatic verification device for electricity meters of the present invention.

[0041] Figure 6 This is a schematic diagram of the online verification method, equipment, and medium of the automatic verification device for electricity meters of the present invention, showing the table position verification data.

[0042] Figure 7 This is a schematic diagram comparing the accuracy of the online verification method and equipment of the automatic verification device for electricity meters of the present invention under different conditions of exceeding a preset number.

[0043] Figure 8 This is a schematic diagram comparing the accuracy of the online verification method and equipment of the automatic verification device for electricity meters under different conditions during the pending verification process of the present invention.

[0044] Figure 9 This is a schematic diagram comparing the accuracy of the online verification method of the automatic verification device for electricity meters of the present invention under different conditions where the number of devices does not exceed the preset number. Detailed Implementation

[0045] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0046] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0047] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0048] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0049] Example 1

[0050] Reference Figure 1 , 7 ~9, which is the first embodiment of the present invention, provides an online verification method for an automated verification device for electricity meters.

[0051] Among them, reference Figure 1 During the verification process, the verification standard energy meter is installed at the verification position of the automated verification device for the energy meter under test. The verification standard energy meter, the automated verification device, and the data terminal are connected to the verification terminal. The data terminal and the verification standard energy meter are connected to the verification terminal. The verification terminal is controlled to acquire the verification data generated by the automated verification device based on the verification task. The verification terminal is also used to control the automated verification device to execute the verification task and acquire the verification data generated by the verification standard energy meter based on the verification task. The verification terminal is used to obtain the verification data from the data terminal and to analyze the verification performance of the automated verification device based on the verification data and the verification data.

[0052] The verification standard energy meter is installed in the verification position of the automatic verification device of the energy meter under test according to the preset layout. There is at least one verification standard energy meter, usually multiple, which are randomly installed or designated to be installed in the verification position. The automatic verification device of the energy meter is specifically an automatic verification production line of the energy meter. Each production line includes multiple verification units, and each verification unit includes multiple verification positions. Each verification unit can perform its own verification task independently.

[0053] The verification terminal connects to the automatic verification device for electricity meters, the verification standard electricity meter, and the data terminal. The data terminal contains a database. The verification terminal connects to the verification standard electricity meter and the data terminal. The verification terminal contains a data analysis program.

[0054] All of the above terminals can be electronic devices such as computers and handheld terminals.

[0055] The verification terminal is used to control the automatic verification device of the electricity meter to perform verification tasks. Specifically, it performs the corresponding test items for the verification tasks. The test items may include: basic error, standard deviation estimate, startup, creep, basic error, calibration constant, daily timing error, time period switching, 485 communication, and demand indication error, etc. It also acquires the verification data generated by the verification standard electricity meter based on the verification task. The verification data is the test result data generated by the verification standard electricity meter when the automatic verification device performs the test items corresponding to the verification task. The verification data can be used as reference data for whether the performance of the automatic verification device of the electricity meter is qualified. The verification terminal is used to acquire the verification data generated by the automatic verification device of the electricity meter based on the verification task and send the verification data to the data terminal for storage in the database of the data terminal. The verification data includes the verification data of each verification position in each verification unit.

[0056] The device's performance is judged according to the preset judgment rules for accurate rating. The verification performance of the automatic verification device for electricity meters is then analyzed based on the verification data and test data.

[0057] If the verification data and the test data do not exceed the preset judgment rules and the absolute values ​​of the two data are consistent, the verification terminal determines that the test performance of the test position of the automatic test device for the electricity meter is qualified. If the verification data and the test data exceed the preset judgment rules or the absolute values ​​of the two data are inconsistent, the verification terminal determines that the test performance of the test position of the automatic test device for the electricity meter is unqualified.

[0058] The specific form of the verification data and the check data can be pulse signals. The consistency comparison is to compare whether the waveforms of the pulse signals are consistent. The check terminal can determine whether the verification data and the check data are consistent by running the data analysis program.

[0059] When the number of meter positions that fail the verification test in the automatic verification device exceeds the preset number, the verification performance of the automatic verification device is determined to be unqualified. If the number of meter positions that fail the verification test does not exceed the preset number, the verification performance of the automatic verification device is determined to be qualified.

[0060] Similarly, the preset quantity is preferably set to 1%, and if the test data exceeds the preset quantity after setting a float, it is considered unqualified;

[0061] If the data does not meet the preset quantity of 1% after floating, but meets the preset quantity after floating, it is recorded as pending.

[0062] If the data after the fluctuation does not exceed 1% of the preset quantity, the performance test is qualified.

[0063] In this embodiment, a specific application experiment of the method of the present invention was conducted. Under the same pre-set experimental environment, three sets of experiments were carried out on two existing conventional methods (standard energy meter method and watt-second method) and the method of this embodiment, respectively. The specific experimental results are shown in Tables 1 and 2:

[0064] Table 1

[0065] 1 47s 33s 19s 2 43s 29s 18s 3 45s 35s 18s Average time 45s 32.3s 18.3s

[0066] As can be seen from Table 1, s represents seconds. The minimum verification and judgment time of the existing method 1 is 43s, and the average time is 45s; the minimum verification and judgment time of the existing method 2 is 29s, and the average time is 32.3s; the minimum verification and judgment time of the present invention is 18s, and the average time is 18.3s.

[0067] Furthermore, the maximum delay of 19s in this invention is less than the minimum delay of 29s in existing methods, thus proving the effectiveness of this method and improving the verification efficiency.

[0068] Table 2

[0069] 1 88.6％ 79.6％ 96.8％ 2 87.8％ 78.1％ 98.5％ 3 88.3％ 83.2％ 98.4％ Average accuracy 88.2％ 80.3％ 97.9％

[0070] As can be seen from Table 2, the accuracy of the calibration data is as follows: Existing Method 1 has the highest accuracy of 88.6% and an average accuracy of 88.2%; Existing Method 2 has the highest accuracy of 83.2% and an average accuracy of 80.3%; The method in this embodiment has the highest accuracy of 98.4% and an average accuracy of 97.9%.

[0071] Furthermore, the minimum accuracy of our method (96.8%) is greater than the maximum accuracy of the two existing methods (88.6%). The verification accuracy of our method is higher than that of traditional methods, which proves that our method reduces operation and maintenance costs, improves detection quality, and reduces labor costs.

[0072] The preferred preset quantity is set to 1%, from Figure 7 It can be seen that when the preset quantity is >1%, the detection accuracy is 98%. When the preset quantity exceeds 1% and a period of time has passed, the probability is 98% to 99%, and the preset quantity condition is finally determined.

[0073] from Figure 8 It can be seen that when the preset quantity is less than 1%, the detection accuracy is 97%, and the fluctuation is small in the early stage. When it is greater than 1%, the accuracy decreases and shows a broken line.

[0074] from Figure 9 It can be seen that when the accuracy is less than 1%, the accuracy is low before that point. When the accuracy falls to 1%, the accuracy shows a broken line, and the accuracy is relatively stable when it is greater than 1%.

[0075] Based on the experimental results above, the preferred preset quantity is 1%.

[0076] The remaining structure is the same as that in Example 2.

[0077] Example 2

[0078] Reference Figure 1 This is the second embodiment of the present invention, which provides an online verification method for an automated verification device for electricity meters.

[0079] The verification terminal acquires pulse data from the standard energy meter and simultaneously acquires pulse data from the verification position of the standard energy meter in the automated verification device. By comparing the pulse data of the standard energy meter and the pulse data of the verification position, the basic and error repeatability tests of the verification position are performed.

[0080] The verification data refers to the experimental results generated by each verification station when the electricity meter verification device performs the corresponding test items for the verification task. When the verification data and the verification data are inconsistent, the verification data shall prevail.

[0081] The verification standard energy meter simulates a fault according to the settings of the verification terminal, and stores the verification data when testing the clock measurement accuracy of the automatic verification device of the energy meter. At the same time, the verification standard energy meter sends the verification data to the verification terminal and / or data terminal, and the verification terminal uploads and saves the acquired verification data.

[0082] The verification terminal is also used to obtain the verification data from the data terminal, and to analyze the verification performance of the automatic verification device for electricity meters based on the verification data and the verification data. That is, it analyzes whether the verification performance of the automatic verification device for electricity meters is qualified by executing the data analysis program.

[0083] During use, the verification terminal can be used to compare the verification data and the verification data of the verification unit. If the verification data and the verification data are consistent, the verification terminal determines that the verification performance of the verification unit of the automatic verification device for electricity meters is qualified. If the verification data and the verification data are inconsistent, the verification terminal determines that the performance of the verification unit of the automatic verification device for electricity meters is unqualified.

[0084] Another approach is that the verification terminal can analyze whether the automatic verification device for electricity meters is qualified based on the verification data and the test data. If the verification data and the test data do not exceed the preset judgment rules and the absolute values ​​of the two data are consistent, the verification terminal determines that the verification performance of the verification unit of the automatic verification device for electricity meters is qualified. If the verification data and the test data exceed the preset judgment rules or the absolute values ​​of the two data are inconsistent, the verification terminal determines that the verification performance of the verification unit of the automatic verification device for electricity meters is unqualified.

[0085] The specific form of the verification data and the check data can be pulse signals. The consistency comparison is to compare whether the electrical energy converted from the pulse signals per unit time is consistent. The check terminal can determine whether the verification data and the check data are consistent by running the data analysis program.

[0086] The verification terminal is also used to upload the acquired verification data and calibration data of the standard electricity meters, as well as the analyzed calibration performance data of the electricity meter automation calibration device, to the data terminal and store them in the data terminal's database. Specifically, the data can be uploaded according to a set cycle, such as daily or monthly, to the data terminal's database for storage, thus improving data security.

[0087] The verification terminal periodically obtains historical verification performance data of the automatic verification device for electricity meters from the data terminal. Based on the historical verification performance data, it analyzes the verification performance changes of the verification units and verification positions of the automatic verification device for electricity meters and issues early warnings based on the verification performance change information.

[0088] Based on the above, it is also possible to verify the historical verification performance data of the automatic verification device of the electricity meter obtained by the terminal from the data terminal on a regular basis, establish a rule base for device anomaly information, build a mathematical model using digital twin technology, perform simulation based on historical verification performance data, analyze the verification performance change information of the verification unit and verification position of the automatic verification device of the electricity meter, and perform positional simulation based on the device anomaly information rule base corresponding to the verification performance change information, analyze the distribution of anomaly points of the automatic verification device of the electricity meter, predict faults, and provide early warning of the verification performance of the automatic verification device of the electricity meter.

[0089] The verification terminal is also used to set verification parameters that match the verification task for the verification standard electricity meter, so that the verification standard electricity meter generates verification data based on the verification task. The verification terminal is also used to display the information of the unqualified verification performance and issue an alarm if the analysis shows that the verification performance of the electricity meter automatic verification device is unqualified.

[0090] The remaining structure is the same as that in Example 2.

[0091] Example 3

[0092] Reference Figure 2 and Figure 3 This is the third embodiment of the present invention, which differs from the second embodiment in that: a verification standard energy meter 100 is installed on the energy meter automatic verification device 500; a verification terminal 200 is connected to the energy meter automatic verification device 500 and the verification standard energy meter 100, and is also connected to a data terminal 400; and a verification terminal 300 is connected to the verification standard energy meter 100 and the data terminal 400.

[0093] Compared to Embodiment 1, the verification standard electricity meter 100 includes a fault simulation module 101 connected to the verification terminal 300 for simulating various faults according to its settings, a clock module 102 connected to the electricity meter automatic verification device 500 for detecting its clock measurement accuracy, a storage module 103 for storing verification data, and a data communication module 104 connected to the verification terminal 300 or the data terminal 400 for sending verification data to both.

[0094] The fault simulation module 101 is used to simulate various faults according to the settings of the verification terminal 300, or according to the settings of other host computers and handheld devices. It does not affect the daily verification tasks of other energy meters to be verified, and performs verification according to the set verification tasks. When various simulated faults occur, it will alarm and prompt to go offline. Various faults may include error faults, start-up test faults, creep test faults, daily timing error faults, LCD faults, constant test faults and 485 communication faults, etc.

[0095] The clock module 102 is used to detect the clock measurement accuracy of the automatic verification device 500 for electricity meters. For example, a DS3231SN can be used. The storage module 103 is used to store the verification data. The storage module 103 can be an FK-VPXKU-M8S2-32T. The data communication module 104 is used to send the verification data to the verification terminal 300 or the data terminal 400. The data communication module 104 can be an RS232-4g / RS485-4g.

[0096] The verification standard energy meter 100 is specifically an installed standard energy meter, including single-phase installed standard energy meters and three-phase installed standard energy meters. The storage module 103 includes a built-in large-capacity non-volatile memory, which can independently store all meter calibration error information without relying on the computer system of the energy meter automatic verification device, and upload it to the verification terminal 300 through the data communication module 104, so that the verification terminal 300 can manage and compare the data.

[0097] Specifically, the data communication module 104 includes an RS485 module, a Bluetooth module, and a Wi-Fi module, which can transmit the electricity consumption, error data, and load records in the meter to relevant devices and the main station. The standard electricity meter 100 can display the current voltage, current, power factor, and grid frequency.

[0098] Three-phase standard energy meters are available in both three-phase three-wire and three-phase four-wire models. Correspondingly, they also have a model switching module to allow users to switch between different models via hardware or virtual buttons.

[0099] Furthermore, the verification terminal 200 includes an error calculation module 201 that connects to the verification standard electricity meter 100 and the electricity meter automatic verification device 500, as well as a communication module 202 and a data storage module 203 internally configured therein. The communication module 202 includes the error calculation module 201, the communication module 202, and the data storage module 203. The communication module 202 includes a mobile communication module 202a, a Wi-Fi (Wireless Fidelity) module 202b, an RS485 module 202c, an RS232 module 202d, a Bluetooth module 202e, and a Universal Serial Bus (USB) module 202f.

[0100] The error calculation module 201 includes a high-precision error calculator, which is used to collect high-frequency and low-frequency pulses from the automatic verification device 500 and the standard installed energy meter. It can also detect errors in the automatic verification device 500. The error calculation module 201 can use PCIe-Packet-Switch-4P.

[0101] Specifically, the verification terminal 200 is used to acquire the pulse data of the verification standard energy meter 100 and the pulse data of the verification position of the verification standard energy meter 100 in the automatic verification device 500, and compares the pulse data of the verification standard energy meter 100 with the pulse data of the verification position through the error calculation module 201 to perform basic and error repeatability tests on the verification position.

[0102] The communication module 202 can transmit data via mobile communication, WI-FI, RS485, RS232, Bluetooth and USB, and can send data to data terminal 400 and other related devices or master station. Then, the data storage module 203 can buffer the collected pulse and other data. The communication module 202 can adopt DSM-031 and the data storage module 203 can adopt DT-100A.

[0103] Furthermore, the verification terminal 300 can be used to set verification parameters for the verification standard energy meter 100 that match the verification task of the energy meter automatic verification device 500, so that the verification standard energy meter 100 generates the verification data based on the verification task. That is, after the verification parameters of the verification standard energy meter 100 are configured, it can generate valid verification data according to the verification task, and the specific verification parameters correspond to the verification task.

[0104] The verification terminal 300 is also used to periodically obtain historical verification performance data of the automatic verification device 500 for electricity meters from the data terminal 400. This historical verification performance data includes historical records of whether the verification performance of each automatic verification device for electricity meters, each verification unit on each automatic verification device for electricity meters, and each verification position in each verification unit is qualified. Based on this historical verification performance data, the verification performance change information of the verification units and verification positions of the automatic verification device 500 for electricity meters is analyzed, and the verification performance of the automatic verification device 500 for electricity meters is warned based on the verification performance change information.

[0105] Furthermore, if the verification performance change information indicates that the verification performance of the verification unit and verification position has deteriorated, such as a decrease in accuracy, a warning message will be displayed on the screen to alert the user to the verification position, verification unit, and automatic verification device of the electricity meter whose verification performance has deteriorated.

[0106] The verification terminal 200 can use the error calculation module 201 to detect errors in the verification position 501 of the automatic verification device 500 for electricity meters. Simultaneously, it can upload data to the data terminal 400 through multiple communication ports, improving communication efficiency. The verification terminal 300 periodically obtains historical verification performance data of the automatic verification device 500 from the data terminal 400. Based on this historical verification performance data, it analyzes the performance changes of the verification unit and the verification position 501 of the automatic verification device 500, and provides early warnings about the verification performance of the automatic verification device 500 based on these performance change information, thereby improving the accuracy of the verification performance analysis of the automatic verification device 500.

[0107] The remaining structure is the same as that in Example 2.

[0108] Example 4

[0109] Reference Figures 1-6 This is the fourth embodiment of the present invention, which differs from the third embodiment in that the method and apparatus of the present invention are tested and used.

[0110] Compared to Example 2, further, the determination of whether the verification data of the current automatic verification device 500 for electricity meters is qualified should be based on the formula:

[0111]

[0112] In the formula: s(%) is the stability index of the device, r i —The unrounded basic error (%) of the i-th measurement device. —Basic error r for each iteration i The average value, where n is the number of repeated measurements;

[0113] To determine the stability index of an automatic verification device for an electricity meter, taking a 0.1-level automatic verification device as an example, when s(%)≤0.01%, the device's stability index is qualified; when s(%)>0.01%, the device's stability index is unqualified.

[0114] The specific test data are shown in Table 3:

[0115] Table 3

[0116]

[0117]

[0118] Specific actual data such as Figure 4 As shown, the calibration data of the test bench body standard table.

[0119] Furthermore, the existing verification method is to first shut down the automatic verification device 500 for electricity meters and then manually connect wires, manually record data, and manually calculate, which is inefficient and has poor real-time performance. In Implementation Example 2, the automatic verification device for electricity meters is run simultaneously with the current production task, and verification is carried out during the operation.

[0120] To determine whether the verification data of the current automatic verification device 500 for electricity meters is qualified, the formula should be used:

[0121]

[0122] In the formula: r(%) is the basic error value of the device, w i —Indicated electrical energy of the device, w0 —Measured electrical energy of the reference standard;

[0123] To calculate the basic error of an automatic verification device for electricity meters, taking a 0.1-level automatic verification device for electricity meters as an example, when the power factor is 1.0, if r (%) ≤ 0.1%, the basic error of the device is qualified; if s (%) > 0.1%, the basic error of the device is unqualified.

[0124] The test data is shown in Table 4:

[0125] Table 4

[0126]

[0127] Specific actual data such as Figure 5 The final conclusion of the test is determined.

[0128] Furthermore, the verification terminal 200 in the online verification equipment of the automatic verification device for electricity meters can detect the error of the verification position 501 in the automatic verification device for electricity meters 500 through the error calculation module 201.

[0129] The error detection calculation formula is:

[0130] In the formula: r(%) is the basic error value of the device, w i —Indicated electrical energy of the device, w0 —Measured electrical energy of the reference standard;

[0131] This method calculates the energy by counting energy pulses, where wi and w0 are the cumulative energy values ​​within the same time period, and the longest sampling time should not exceed T calculated by the formula.

[0132]

[0133] Where: T—maximum sampling time for accumulated electrical energy;

[0134] The basic error verification data are shown in Table 5:

[0135] Table 5

[0136]

[0137] Data is uploaded to the data terminal 400 through multiple communication ports to improve communication efficiency. The verification terminal 300 periodically obtains historical verification performance data of the automatic verification device 500 from the data terminal 400. Based on the historical verification performance data, the verification performance change information of the verification unit and the verification meter position 501 of the automatic verification device 500 is analyzed. Based on the verification performance change information, the verification performance of the automatic verification device 500 is given an early warning, which can improve the accuracy of the verification performance analysis of the automatic verification device 500.

[0138] Specific actual data such as Figure 6 , Test table surface position verification data.

[0139] The remaining structure is the same as that in Example 3.

[0140] It should be recognized that embodiments of the present invention can be implemented or carried out by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable storage medium. The method can be implemented using standard programming techniques—including a non-transitory computer-readable storage medium configured with a computer program, wherein such a storage medium causes the computer to operate in a specific and predefined manner—according to the methods and drawings described in the specific embodiments. Each program can be implemented in a high-level procedural or object-oriented programming language to communicate with the computer system. However, if desired, the program can be implemented in assembly or machine language. In any case, the language can be a compiled or interpreted language. Furthermore, for this purpose, the program can run on a programmed application-specific integrated circuit (ASIC).

[0141] Furthermore, the procedures described herein may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by the context. The procedures described herein (or variations and / or combinations thereof) may be executed under the control of one or more computer systems configured with executable instructions, and may be implemented by hardware or a combination thereof as code (e.g., executable instructions, one or more computer programs, or one or more applications) that commonly executes on one or more processors. The computer program comprises a plurality of instructions executable by one or more processors.

[0142] Furthermore, the method can be implemented in any suitable type of computing platform, including but not limited to personal computers, minicomputers, mainframes, workstations, networked or distributed computing environments, standalone or integrated computer platforms, or in communication with charged particle tools or other imaging devices, etc. Aspects of the invention can be implemented as machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optical read and / or write storage medium, RAM, ROM, etc., such that it is readable by a programmable computer, and when the storage medium or device is read by the computer, it can be used to configure and operate the computer to perform the processes described herein. Furthermore, the machine-readable code, or portions thereof, can be transmitted via wired or wireless networks. The invention described herein includes these and other different types of non-transitory computer-readable storage media when such media comprises instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. When programmed according to the methods and techniques described herein, the invention also includes the computer itself. A computer program can be applied to input data to perform the functions described herein, thereby transforming the input data to generate output data stored in non-volatile memory. The output information can also be applied to one or more output devices such as a display. In a preferred embodiment of the invention, the converted data represents physical and tangible objects, including specific visual depictions of physical and tangible objects generated on a display.

[0143] As used herein, the terms “component,” “module,” “system,” etc., are intended to refer to a computer-related entity, which may be hardware, firmware, a combination of hardware and software, software, or running software. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable file, a running thread, a program, and / or a computer. As an example, an application running on a computing device and the computing device itself can both be components. One or more components may reside in a running process and / or thread, and components may be located in a single computer and / or distributed among two or more computers. Furthermore, these components are capable of execution from various computer-readable media having various data structures thereon. These components may communicate locally and / or remotely via signals, such as based on one or more data packets (e.g., data from a component that interacts with a local system, another component in a distributed system, and / or signals that interact with other systems via a network such as the Internet).

[0144] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An online verification method for an automated verification device for electricity meters, characterized in that: include, When performing a verification task, the verification standard energy meter is installed on the verification position of the automatic verification device of the energy meter to be tested. The verification standard energy meter, the automatic verification device of the energy meter and the data terminal are connected to the verification terminal. The data terminal is connected to the verification standard energy meter and the automatic verification device of the energy meter. The data terminal and the verification standard energy meter are connected to the verification terminal. The verification terminal controls the acquisition of verification data generated by the automatic verification device of the electricity meter based on the verification task, and the verification terminal controls the automatic verification device of the electricity meter to perform the verification task and acquires the verification data generated by the verification standard electricity meter based on the verification task. The verification terminal obtains the verification data from the data terminal, and judges whether the verification performance of the automatic verification device for electricity meters is qualified according to the judgment rules preset for accurate device grading. The verification performance of the automatic verification device for electricity meters is analyzed based on the verification data and the verification data. The verification standard electricity meter simulates a fault according to the settings of the verification terminal, and stores the verification data when testing the clock measurement accuracy of the electricity meter automatic verification device; Simultaneously, the verification standard electricity meter sends the verification data to the verification terminal and / or data terminal; The verification terminal uploads and saves the acquired verification data; The obtained verification data, calibration data, and analysis data of the automatic calibration device for the energy meter are uploaded to the database of the data terminal for storage according to the set cycle. The verification terminal periodically obtains historical verification performance data of the automatic verification device for electricity meters from the data terminal, establishes a rule base for device anomaly information, builds a mathematical model using digital twin technology, performs simulation based on the historical verification performance data, analyzes the verification performance changes of the verification units and verification positions of the automatic verification device for electricity meters, and performs positional simulation based on the rule base for device anomaly information corresponding to the verification performance changes, analyzes the distribution of anomaly points of the automatic verification device for electricity meters, predicts faults, and provides early warnings on the verification performance of the automatic verification device for electricity meters. The verification terminal is also used to set verification parameters for the verification standard energy meter that match the verification task, so that the verification standard energy meter generates the verification data based on the verification task; The verification terminal is also used to display information about the unqualified verification performance and issue an alarm if the analysis shows that the verification performance of the automatic verification device for the electricity meter is unqualified.

2. The online verification method for the automated verification device of the electricity meter according to claim 1, characterized in that: The analysis is performed based on the verification data and the verification data obtained from the verification terminal, including: Whether the verification data and the test data exceed the preset judgment rules; Whether the verification data and the test data are consistent; If the verification data and the test data do not exceed the preset judgment rules and the absolute values ​​of the two data are consistent, then the test performance of the test position is determined to be qualified. If the verification data and the test data exceed the preset judgment rules or the absolute values ​​of the two data are inconsistent, then the test performance of the test position is determined to be unqualified.

3. The online verification method for the automatic verification device of the electricity meter according to claim 2, characterized in that: The pulse data of the verification standard energy meter is obtained from the verification terminal; Simultaneously, pulse data of the verification standard energy meter located in the automatic verification device for energy meters is acquired; The basic and error repeatability tests of the calibration meter are performed by comparing the pulse data of the standard energy meter and the pulse data of the calibration meter.

4. The online verification method for the automated verification device of the electricity meter according to claim 2 or 3, characterized in that: When the number of meter positions in the automatic verification device that fail verification exceeds a preset number, the automatic verification device for electricity meters is determined to have failed verification.

5. An online verification device for an automated verification device of an electricity meter, characterized in that: The online verification method for implementing the automated verification device for electricity meters as described in any one of claims 1 to 4 includes, Verify the standard electricity meter (100), which is installed on the automatic verification device (500) for electricity meters; The verification terminal (200) is connected to the automatic verification device (500) for electricity meters and the verification standard electricity meter (100) respectively, and is also connected to the data terminal (400). Verification terminal (300) is connected to the verification standard electricity meter (100) and the data terminal (400).

6. The online verification equipment for the automated verification device of the electricity meter according to claim 5, characterized in that: The verification standard electricity meter (100) includes a fault simulation module (101) connected to the verification terminal (300) for simulating various faults according to its settings, a clock module (102) connected to the electricity meter automatic verification device (500) for detecting its clock measurement accuracy, a storage module (103) for storing verification data, and a data communication module (104) connected to the verification terminal (300) or a data terminal (400) for sending verification data to both. The verification terminal (200) includes an error calculation module (201) that connects the verification standard electricity meter (100) and the electricity meter automatic verification device (500), as well as a communication module (202) and a data storage module (203) installed inside it. The data terminal (400) is equipped with a database (401) so that the verification terminal (200) can upload the verification data to the database (401) for storage. The automatic verification device (500) for electricity meters is equipped with a verification station (501), and the verification standard electricity meter (100) is installed on the verification station (501).

7. A computer-readable storage medium storing computer-executable instructions, characterized in that: When the computer-executable instructions are executed by the processor, they implement the online verification method of the automatic verification device for electricity meters as described in any one of claims 1 to 4.

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