A method, device and system for automatic verification of electric energy meter calibration device

Abstract

The present invention discloses an automatic verification method, device and system suitable for electric energy meter calibration devices, the method comprising: according to the period verification task, dispatching the physical verification equipment out of the warehouse and connecting it with the designated electric energy meter calibration device at the designated location; the physical verification equipment sends a synchronization signal to all the electric energy meter calibration devices to be verified according to the preset number of measurements and the preset measurement sequence, and calculates a number of electric energy error values ​​according to the recorded number of electric energy pulses of the physical verification equipment and all the electric energy meter calibration devices to be verified; obtaining the several electric energy error values, and generating a period verification report according to the several electric energy error values. The embodiment of the present invention can realize the automatic verification of the electric energy meter calibration device, which improves the verification efficiency while avoiding the influence of human factors and improving the accuracy of the verification.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meter calibration, and in particular to an automatic checking method and device suitable for an electric energy meter calibration device. Background Art

[0002] With the wide application of smart energy meters and the comprehensive promotion of the province-wide centralized calibration model for energy metering equipment, the energy meter calibration business volume has grown rapidly, with the annual calibration volume in the province reaching millions. At present, the energy meter calibration work has changed from the original manual calibration to the automated assembly line calibration mode, which features highly centralized distribution of calibration devices, a small number of calibration personnel, and high calibration efficiency. Therefore, ensuring that the standard performance of the energy meter calibration device continues to meet the method requirements is the focus of metrology standard management. At present, interim verification is mainly carried out through manual operations. As a means of standard performance verification during the two consecutive traceability periods of the energy meter calibration device, it specifically includes completing the wiring of the verification standard and the calibration device, setting up and operating related equipment, exporting and processing verification data, and collating and archiving verification reports. A series of tedious and time-consuming tasks. The frequency of periodic verification of electric energy meter calibration devices is generally more than 3 times a year. The methods adopted mainly include: using high-accuracy measurement standard instruments to verify and calibrate the verified calibration device; and using the verified calibration device to measure the measured object with good stability, and formulating the control limit and warning value of the verification measurement based on the maximum allowable error of the verified calibration device, the calibration result and the uncertainty.

[0003] The existing interim verification method still relies on manual operations, which has low efficiency and a great impact on daily calibration production. Faced with a large number of calibration devices, if the frequency of interim verification is increased, although it can reduce the risk of measurement inaccuracy caused by inaccurate calibration devices, it will also lead to a significant reduction in calibration efficiency, increased labor costs for verification work, and long-term occupation of laboratory resources. Therefore, it is difficult to ensure the frequency and timeliness of verification. At the same time, the test process and data processing are at great risk of being affected by human factors. If the calibration device is inaccurate, it is difficult to detect, accurately judge and deal with it in time. The recall of the affected equipment that has been inspected and installed is difficult and has a severe impact. It is difficult to meet the requirements of lean management and online risk control of metrological calibration production. Summary of the invention

[0004] The present invention provides an automatic checking method and device applicable to an electric energy meter verification device, so as to solve the technical problem that the prior art cannot timely and accurately check the electric energy meter verification device.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides an automatic verification method applicable to an electric energy meter verification device, comprising:

[0006] Formulate period verification tasks, and dispatch physical verification equipment out of the warehouse and connect it with the designated electric energy meter verification device at the designated location according to the period verification tasks;

[0007] Using the physical verification device to send a synchronization signal to all the electric energy meter verification devices to be verified according to a preset number of measurements and a preset measurement order, and calculating a number of electric energy error values ​​according to the number of electric energy pulses of the physical verification device and all the electric energy meter verification devices to be verified recorded during the sending of the synchronization signal;

[0008] The plurality of electric energy error values ​​are obtained, and a period verification report is generated according to the plurality of electric energy error values.

[0009] The present invention can improve the efficiency of the verification of the electric energy meter verification device and ensure the timeliness of the verification work by automatically scheduling the physical verification equipment to automatically verify all the electric energy meter verification devices to be verified according to the preset number of measurements and measurement sequence through the specified period verification tasks; at the same time, by sending a synchronization signal to the electric energy meter verification device and recording the electric energy pulse counts of the physical verification equipment and the electric energy meter verification device respectively, the error value is calculated, and while ensuring the accuracy of the verification result, manual wiring to the electric energy pulse output terminal of the verified device to obtain the electric energy pulse is avoided, thereby improving the degree of automation of the verification; in addition, the entire process of executing the period verification task in the present invention is automated, avoiding the influence of human factors on the test process and data, and ensuring the quality of verification.

[0010] Furthermore, the physical verification device is used to send a synchronization signal to all the electric energy meter verification devices to be verified according to a preset number of measurements and a preset measurement order, and according to the number of electric energy pulses of the physical verification device and all the electric energy meter verification devices to be verified recorded during the sending of the synchronization signal, a number of electric energy error values ​​are calculated, specifically:

[0011] After the power source of the designated electric energy meter calibration device is increased, the physical verification device is used to send a synchronization signal to the designated electric energy meter calibration device according to the preset number of measurements and the number of electric energy pulses of the physical verification device and the designated electric energy meter calibration device is recorded, and the electric energy error value is calculated according to the number of electric energy pulses; wherein the designated electric energy meter calibration device is the first electric energy meter calibration device to be verified or a certain electric energy meter calibration device to be verified specified according to the preset measurement order;

[0012] According to the preset measurement sequence, the next electric energy meter calibration device to be checked is designated, and after the physical verification equipment is connected to the next electric energy meter calibration device to be checked, the previous step is executed until all the electric energy meter calibration devices to be checked are checked.

[0013] The present invention sends a synchronization signal to an electric energy meter verification device through a physical verification device, and completes the measurement by recording the number of electric energy pulses respectively counted by the two devices; by repeating the measurement for a preset number of times to reduce the error caused by random factors in a single measurement, the accuracy of the verification is improved; and all electric energy meter verification devices to be verified are automatically verified in a preset measurement order, thereby improving the timeliness and efficiency of the verification.

[0014] Furthermore, the use of the physical verification device to send a synchronization signal to the designated electric energy meter verification device according to the preset number of measurements and record the number of electric energy pulses of the physical verification device and the designated electric energy meter verification device is specifically:

[0015] S1, the physical verification device receives the start verification instruction sent by the designated electric energy meter verification device, sends a synchronization signal to the designated electric energy meter verification device and starts counting electric energy pulses;

[0016] S2. After the electric energy pulse count reaches a specified value, the physical verification device records the first electric energy pulse data and sends a stop synchronization signal to the specified electric energy meter verification device;

[0017] S3, the physical verification device receives the second electric energy pulse data sent by the designated electric energy meter verification device;

[0018] S4, the physical verification device calculates an error value according to the first power pulse data and the second power pulse data;

[0019] S1-S4 are repeatedly performed until the preset number of measurements is reached and a number of error values ​​are obtained.

[0020] Furthermore, the electric energy error value is calculated based on the number of electric energy pulses, specifically:

[0021] The average of the plurality of error values ​​is calculated, and the electric energy error value is obtained after rounding.

[0022] The present invention performs an average operation on a plurality of error values ​​obtained through multiple measurements and calculations, thereby reducing the error caused by random factors in a single measurement and making the electric energy error value obtained after rounding have higher accuracy.

[0023] Further, the physical verification device receives a start verification instruction sent by the designated electric energy meter calibration device, specifically: the physical verification device receives the start verification instruction sent by the calibration system software through the RS-485 communication protocol; wherein the calibration system software is software executed in the designated electric energy meter calibration device; the physical verification device receives the second electric energy pulse data sent by the designated electric energy meter calibration device, specifically: the physical verification device receives the second electric energy pulse data recorded by the error board through the RS-485 communication protocol; the error board is arranged in the designated electric energy meter calibration device, and is used to count electric energy pulses.

[0024] The present invention transmits verification instructions and collects electric energy pulse data through the RS-485 interface, avoids transmitting high-frequency electric energy pulse data through meter terminals, and improves the adaptability of physical verification equipment to different electric energy meter calibration devices.

[0025] Furthermore, the designated electric energy meter calibration device receives the synchronization signal and counts electric energy pulses according to the error board; the designated electric energy meter calibration device also receives the stop synchronization signal and stops counting electric energy pulses according to the error board to generate the second electric energy pulse data.

[0026] Furthermore, the verification tasks during the formulation are specifically as follows:

[0027] File the physical verification equipment to obtain equipment files, and store the physical verification equipment in a designated flat warehouse or vertical warehouse;

[0028] The period verification task is specified according to the equipment file and the preset period verification plan; wherein the period verification plan is used to determine the electric energy meter calibration device to be verified and the corresponding load power test item requirements.

[0029] Furthermore, the physical verification device is a physical verification device with an accuracy level of 0.02.

[0030] The present invention uses 0.02-level physical verification equipment to realize automated verification while improving the accuracy of verification and error calculation results.

[0031] On the other hand, an embodiment of the present invention further provides an automatic verification device applicable to an electric energy meter verification device, comprising: a task formulation module, a verification execution module and a report generation module;

[0032] The task formulation module is used to formulate period verification tasks, and according to the period verification tasks, dispatch physical verification equipment to be shipped out of the warehouse and connected with the designated electric energy meter verification device at the designated location;

[0033] The verification execution module is used to use the physical verification device to send a synchronization signal to all the electric energy meter verification devices to be verified according to a preset number of measurements and a preset measurement order, and calculate a number of electric energy error values ​​according to the number of electric energy pulses of the physical verification device and all the electric energy meter verification devices to be verified recorded during the sending of the synchronization signal;

[0034] The report generation module is used to obtain the plurality of electric energy error values ​​and generate a period verification report according to the plurality of electric energy error values.

[0035] The present invention can improve the efficiency of the verification of the electric energy meter verification device and ensure the timeliness of the verification work by automatically scheduling the physical verification equipment to automatically verify all the electric energy meter verification devices to be verified according to the preset number of measurements and measurement sequence through the specified period verification tasks; at the same time, by sending a synchronization signal to the electric energy meter verification device and recording the electric energy pulse counts of the physical verification equipment and the electric energy meter verification device respectively, the error value is calculated, and while ensuring the accuracy of the verification result, manual wiring to the electric energy pulse output terminal of the verified device to obtain the electric energy pulse is avoided, thereby improving the degree of automation of the verification; in addition, the entire process of executing the period verification task in the present invention is automated, avoiding the influence of human factors on the test process and data, and ensuring the quality of verification.

[0036] On the other hand, an embodiment of the present invention further provides an automatic verification system applicable to an electric energy meter verification device, comprising: a production management platform and a physical verification device;

[0037] Wherein, the production management platform is used to execute the automatic verification method applicable to the electric energy meter calibration device as described in the embodiment of the present invention;

[0038] The physical verification device is used to verify the electric energy meter calibration device to be tested according to the instructions of the production management platform; and is used to send the calculated multiple electric energy error values ​​to the production management platform.

[0039] The present invention can improve the efficiency of the verification of the electric energy meter verification device and ensure the timeliness of the verification work by automatically scheduling the physical verification equipment to automatically verify all the electric energy meter verification devices to be verified according to the preset number of measurements and measurement sequence through the specified period verification tasks; at the same time, by sending a synchronization signal to the electric energy meter verification device and recording the electric energy pulse counts of the physical verification equipment and the electric energy meter verification device respectively, the error value is calculated, and while ensuring the accuracy of the verification result, manual wiring to the electric energy pulse output terminal of the verified device to obtain the electric energy pulse is avoided, thereby improving the degree of automation of the verification; in addition, the entire process of executing the period verification task in the present invention is automated, avoiding the influence of human factors on the test process and data, and ensuring the quality of verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A flow chart of an embodiment of an automatic verification method for an electric energy meter verification device provided by the present invention;

[0041] Figure 2 A flow chart of another embodiment of the automatic verification method for an electric energy meter verification device provided by the present invention;

[0042] Figure 3 A schematic structural diagram of an embodiment of an automatic checking device applicable to an electric energy meter calibration device provided by the present invention;

[0043] Figure 4 A structural schematic diagram of an embodiment of an automatic verification system applicable to an electric energy meter verification device provided by the present invention;

[0044] Figure 5 A schematic diagram of the automated verification process provided by the present invention. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Embodiment 1

[0047] Please refer to Figure 1 , which is a flow chart of an embodiment of an automatic verification method for an electric energy meter calibration device provided by the present invention, mainly including steps 101-103, which are as follows:

[0048] Step 101: Formulate a period verification task, and according to the period verification task, dispatch physical verification equipment to be shipped out of the warehouse and connected to a designated electric energy meter calibration device at a designated location.

[0049] In this embodiment, the automatic verification method in the embodiment of the present invention can be implemented through the production management platform, and the scheduling of the physical verification equipment can be completed; before the verification task is executed, the physical verification equipment can be stored in a warehouse; wherein the warehouse includes a flat warehouse or a vertical warehouse.

[0050] In this embodiment, the production management platform can dispatch the physical verification equipment and place it at a designated location by controlling robots, automatic guided vehicles, rail-guided vehicles, and conveyor lines, and dispatch the physical verification equipment to unload and return to the warehouse after completing the verification task; in addition, the connection methods include but are not limited to hanging and horizontal crimping.

[0051] Furthermore, the verification tasks during the formulation are specifically as follows:

[0052] File the physical verification equipment to obtain equipment files, and store the physical verification equipment in a designated flat warehouse or vertical warehouse;

[0053] The period verification task is specified according to the equipment file and the preset period verification plan; wherein the period verification plan is used to determine the electric energy meter calibration device to be verified and the corresponding load power test item requirements.

[0054] In this embodiment, the interim verification plan may also include the measurement sequence of each electric energy meter verification device, the number of measurements of a single electric energy meter verification device, etc.; combined with the equipment files of the physical verification equipment, a detailed interim verification task is formulated.

[0055] Furthermore, the physical verification device is a physical verification device with an accuracy level of 0.02.

[0056] In this embodiment, the physical verification equipment can adopt a 0.02-level physical verification equipment that is consistent with the current standard electric energy meter size, replace the original period verification standard equipment, and cooperate with the production management platform to automatically circulate and verify each electric energy meter calibration device.

[0057] The present invention uses 0.02-level physical verification equipment to realize automated verification while improving the accuracy of verification and error calculation results.

[0058] Step 102: Use the physical verification device to send a synchronization signal to all the electric energy meter calibration devices to be verified according to a preset number of measurements and a preset measurement order, and calculate a number of electric energy error values ​​based on the number of electric energy pulses of the physical verification device and all the electric energy meter calibration devices to be verified recorded during the sending of the synchronization signal.

[0059] In this embodiment, the physical verification device verifies a single electric energy meter calibration device according to a preset number of measurements by sending a synchronization signal and recording the number of electric energy pulses; in addition, the physical verification device can cooperate with the production management platform to verify all electric energy meter calibration devices in sequence according to a preset measurement sequence. Figure 5 , which is a schematic diagram of the automated verification process provided by the present invention, wherein, after the physical verification equipment is taken out from the flat warehouse or the vertical warehouse, the electric energy meter verification devices on the automated verification assembly line are automatically circulated and verified in sequence, and the physical verification equipment is unloaded into the warehouse after the verification task is completed; wherein verification device 1 to verification device n represent all the electric energy meter verification devices to be verified.

[0060] In order to ensure the accuracy of high-level verification standards, the existing technology must output a sufficiently high frequency of electric energy pulses. However, most of the current calibration devices do not support the collection of high-frequency pulses from the table, nor do they support the output of electric energy pulses emitted by their own standard table from the table. Therefore, the verification standard and the device being verified cannot directly obtain the electric energy pulses emitted by the other party from the table. The current conventional practice is to connect the verification standard to the electric energy pulse output terminal of the standard table of the device being verified through manual wiring to obtain the electric energy pulse of the device being verified. In this embodiment, the physical verification device and the device being verified respectively complete their respective electric energy pulse counting, and the start and stop of the electric energy pulse counting of both parties are uniformly controlled by the synchronization signal output by the physical verification device. Then the device being verified sends the counted number of electric energy pulses to the physical verification device, and the physical verification device completes the error calculation.

[0061] Step 103: Obtain the plurality of electric energy error values, and generate a period verification report according to the plurality of electric energy error values.

[0062] In this embodiment, a plurality of electric energy error values ​​uploaded by the physical verification equipment can be obtained through the production management platform, and data analysis is performed on the plurality of electric energy error values ​​to generate a period verification report including the verification conclusions.

[0063] Please refer to Figure 2 , which is a flow chart of another embodiment of the automatic verification method for an electric energy meter verification device provided by the present invention, mainly including steps 201-202, which are as follows:

[0064] In this embodiment, step 102 specifically includes step 201 and step 202 .

[0065] Step 201: After the power source of the designated electric energy meter calibration device is increased, the physical verification device is used to send a synchronization signal to the designated electric energy meter calibration device according to the preset number of measurements and the number of electric energy pulses of the physical verification device and the designated electric energy meter calibration device is recorded, and the electric energy error value is calculated based on the number of electric energy pulses; wherein the designated electric energy meter calibration device is the first electric energy meter calibration device to be verified or an electric energy meter calibration device to be verified specified according to the preset measurement order.

[0066] In this embodiment, the power source upgrading includes completing the output and adjustment of the amplitude, frequency and phase of the test voltage and test current, so as to apply a preset test voltage and a preset test current to the designated electric energy meter calibration device.

[0067] Furthermore, the use of the physical verification device to send a synchronization signal to the designated electric energy meter verification device according to the preset number of measurements and record the number of electric energy pulses of the physical verification device and the designated electric energy meter verification device is specifically:

[0068] S1, the physical verification device receives the start verification instruction sent by the designated electric energy meter verification device, sends a synchronization signal to the designated electric energy meter verification device and starts counting electric energy pulses;

[0069] S2. After the electric energy pulse count reaches a specified value, the physical verification device records the first electric energy pulse data and sends a stop synchronization signal to the specified electric energy meter verification device;

[0070] S3, the physical verification device receives the second electric energy pulse data sent by the designated electric energy meter verification device;

[0071] S4, the physical verification device calculates an error value according to the first power pulse data and the second power pulse data;

[0072] S1-S4 are repeatedly performed until the preset number of measurements is reached and a number of error values ​​are obtained.

[0073] In this embodiment, the specified electric energy meter verification device is checked for a preset number of measurements, and the average value of the obtained error values ​​is calculated, thereby reducing the error caused by random factors in a single measurement.

[0074] Furthermore, the electric energy error value is calculated based on the number of electric energy pulses, specifically:

[0075] The average of the plurality of error values ​​is calculated, and the electric energy error value is obtained after rounding.

[0076] In this embodiment, the calculation of the error value may refer to the verification procedure, and the calculation of the mean value may be performed by calculating the mean value according to specified conditions or calculating the weighted mean value.

[0077] The present invention performs an average operation on a plurality of error values ​​obtained through multiple measurements and calculations, thereby reducing the error caused by random factors in a single measurement and making the electric energy error value obtained after rounding have higher accuracy.

[0078] Further, the physical verification device receives a start verification instruction sent by the designated electric energy meter calibration device, specifically: the physical verification device receives the start verification instruction sent by the calibration system software through the RS-485 communication protocol; wherein the calibration system software is software executed in the designated electric energy meter calibration device; the physical verification device receives the second electric energy pulse data sent by the designated electric energy meter calibration device, specifically: the physical verification device receives the second electric energy pulse data recorded by the error board through the RS-485 communication protocol; the error board is arranged in the designated electric energy meter calibration device, and is used to count electric energy pulses.

[0079] In this embodiment, the verification system software is used to send a start verification instruction to the physical verification device, and is also used to read the second electric energy pulse data recorded by the error board and send the second electric energy pulse data to the physical verification device.

[0080] The present invention transmits verification instructions and collects electric energy pulse data through the RS-485 interface, avoids transmitting high-frequency electric energy pulse data through meter terminals, and improves the adaptability of physical verification equipment to different electric energy meter calibration devices.

[0081] In this embodiment, the designated electric energy meter calibration device receives the synchronization signal and counts electric energy pulses according to the error board; the designated electric energy meter calibration device also receives the stop synchronization signal and stops counting electric energy pulses according to the error board to generate the second electric energy pulse data.

[0082] Step 202: According to the preset measurement sequence, specify the next electric energy meter calibration device to be verified, connect the physical verification equipment to the next electric energy meter calibration device to be verified, and execute step 201 until all electric energy meter calibration devices to be verified are verified.

[0083] In this embodiment, the physical verification equipment can be transported to the next designated location by means of a robot, an automatic guided vehicle, a rail-guided vehicle, a conveyor line, etc., and connected to the next electric energy meter calibration device to be verified.

[0084] The present invention sends a synchronization signal to an electric energy meter verification device through a physical verification device, and completes the measurement by recording the number of electric energy pulses respectively counted by the two devices; by repeating the measurement for a preset number of times to reduce the error caused by random factors in a single measurement, the accuracy of the verification is improved; and all electric energy meter verification devices to be verified are automatically verified in a preset measurement order, thereby improving the timeliness and efficiency of the verification.

[0085] Please refer to Figure 3 , which is a structural diagram of an embodiment of an automatic verification device for an electric energy meter calibration device provided by the present invention, mainly includes: a task formulation module 301, a verification execution module 302 and a report generation module 303.

[0086] In this embodiment, the task formulation module 301 is used to formulate the period verification task, and according to the period verification task, schedule the physical verification equipment to be shipped out and connected with the designated electric energy meter calibration device at the designated location.

[0087] The verification execution module 302 is used to use the physical verification equipment to send a synchronization signal to all the electric energy meter calibration devices to be verified according to a preset number of measurements and a preset measurement order, and calculate a number of electric energy error values ​​based on the number of electric energy pulses of the physical verification equipment and all the electric energy meter calibration devices to be verified recorded during the sending of the synchronization signal.

[0088] The report generation module 303 is used to obtain the plurality of electric energy error values ​​and generate a period verification report according to the plurality of electric energy error values.

[0089] Please refer to Figure 4 , which is a structural schematic diagram of an embodiment of an automatic verification system for an electric energy meter calibration device provided by the present invention, mainly comprising: a production management platform 401 and a physical verification device 402.

[0090] In this embodiment, the production management platform 401 is used to execute the automatic verification method applicable to the electric energy meter calibration device as described in the embodiment of the present invention.

[0091] The physical verification device 402 is used to verify the electric energy meter calibration device to be tested according to the instructions of the production management platform 401; and to send the calculated electric energy error values ​​to the production management platform 401.

[0092] The present invention can improve the efficiency of the verification of the electric energy meter verification device and ensure the timeliness of the verification work by automatically scheduling the physical verification equipment to automatically verify all the electric energy meter verification devices to be verified according to the preset number of measurements and measurement sequence through the specified period verification tasks; at the same time, by sending a synchronization signal to the electric energy meter verification device and recording the electric energy pulse counts of the physical verification equipment and the electric energy meter verification device respectively, the error value is calculated, and while ensuring the accuracy of the verification result, manual wiring to the electric energy pulse output terminal of the verified device to obtain the electric energy pulse is avoided, thereby improving the degree of automation of the verification; in addition, the entire process of executing the period verification task in the present invention is automated, avoiding the influence of human factors on the test process and data, and ensuring the quality of verification.

[0093] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic verification method for electric energy meter verification device, It is characterized in that include: Formulate period verification tasks, and dispatch physical verification equipment out of the warehouse and connect it with the designated electric energy meter verification device at the designated location according to the period verification tasks; Using the physical verification device to send a synchronization signal to all the electric energy meter verification devices to be verified according to a preset number of measurements and a preset measurement order, and calculating a number of electric energy error values ​​according to the number of electric energy pulses of the physical verification device and all the electric energy meter verification devices to be verified recorded during the sending of the synchronization signal; Acquire the plurality of electric energy error values, and generate a period verification report according to the plurality of electric energy error values; The verification tasks during the formulation period are specifically as follows: File the physical verification equipment to obtain equipment files, and store the physical verification equipment in a designated flat warehouse or vertical warehouse; The period verification task is specified according to the equipment file and the preset period verification plan; wherein the period verification plan is used to determine the electric energy meter calibration device to be verified and the corresponding load power test item requirements.

2. The automatic verification method for electric energy meter verification device according to claim 1, It is characterized in that The physical verification device is used to send a synchronization signal to all the electric energy meter verification devices to be verified according to a preset number of measurements and a preset measurement order, and a number of electric energy error values ​​are calculated based on the number of electric energy pulses of the physical verification device and all the electric energy meter verification devices to be verified recorded during the sending of the synchronization signal, specifically: After the power source of the designated electric energy meter calibration device is increased, the physical verification device is used to send a synchronization signal to the designated electric energy meter calibration device according to the preset number of measurements and the number of electric energy pulses of the physical verification device and the designated electric energy meter calibration device is recorded, and the electric energy error value is calculated according to the number of electric energy pulses; wherein the designated electric energy meter calibration device is the first electric energy meter calibration device to be verified or a certain electric energy meter calibration device to be verified specified according to the preset measurement order; According to the preset measurement sequence, the next electric energy meter calibration device to be checked is designated, and after the physical verification equipment is connected to the next electric energy meter calibration device to be checked, the previous step is executed until all the electric energy meter calibration devices to be checked are checked.

3. The automatic verification method for electric energy meter verification device according to claim 2, It is characterized in that The method of using the physical verification device to send a synchronization signal to the designated electric energy meter verification device according to the preset number of measurements and recording the number of electric energy pulses of the physical verification device and the designated electric energy meter verification device is specifically: S1, the physical verification device receives the start verification instruction sent by the designated electric energy meter verification device, sends a synchronization signal to the designated electric energy meter verification device and starts counting electric energy pulses; S2. After the electric energy pulse count reaches a specified value, the physical verification device records the first electric energy pulse data and sends a stop synchronization signal to the specified electric energy meter verification device; S3, the physical verification device receives the second electric energy pulse data sent by the designated electric energy meter verification device; S4, the physical verification device calculates an error value according to the first power pulse data and the second power pulse data; S1-S4 are repeatedly performed until the preset number of measurements is reached and a number of error values ​​are obtained.

4. The automatic verification method for electric energy meter verification device as claimed in claim 3, It is characterized in that The electric energy error value is calculated according to the electric energy pulse number, specifically: The average of the plurality of error values ​​is calculated, and the electric energy error value is obtained after rounding.

5. The automatic verification method for electric energy meter verification device as claimed in claim 3, It is characterized in that The physical verification device receives the start verification instruction sent by the designated electric energy meter calibration device, specifically: the physical verification device receives the start verification instruction sent by the calibration system software through the RS-485 communication protocol; wherein the calibration system software is the software executed in the designated electric energy meter calibration device; the physical verification device receives the second electric energy pulse data sent by the designated electric energy meter calibration device, specifically: the physical verification device receives the second electric energy pulse data recorded by the error board through the RS-485 communication protocol; the error board is arranged in the designated electric energy meter calibration device, and is used to count electric energy pulses.

6. The automatic verification method for electric energy meter verification device as claimed in claim 3, It is characterized in that The designated electric energy meter calibration device receives the synchronization signal and counts electric energy pulses according to the error board; the designated electric energy meter calibration device also receives the stop synchronization signal and stops counting electric energy pulses according to the error board to generate the second electric energy pulse data.

7. The automatic verification method for an electric energy meter verification device according to any one of claims 1 to 6, It is characterized in that The physical verification equipment is a physical verification equipment with an accuracy level of 0.

02.

8. An automatic verification device suitable for electric energy meter verification device, It is characterized in that include: Task formulation module, verification execution module and report generation module; The task formulation module is used to formulate period verification tasks, and according to the period verification tasks, dispatch physical verification equipment to be shipped out of the warehouse and connected with the designated electric energy meter verification device at the designated location; The verification execution module is used to use the physical verification device to send a synchronization signal to all the electric energy meter verification devices to be verified according to a preset number of measurements and a preset measurement order, and calculate a number of electric energy error values ​​according to the number of electric energy pulses of the physical verification device and all the electric energy meter verification devices to be verified recorded during the sending of the synchronization signal; The report generation module is used to obtain the plurality of electric energy error values ​​and generate a period verification report according to the plurality of electric energy error values.

9. An automatic verification system for electric energy meter verification devices, It is characterized in that include: Production management platform and physical verification equipment; Wherein, the production management platform is used to execute the automatic verification method applicable to the electric energy meter calibration device as described in any one of claims 1 to 6; The physical verification device is used to verify the electric energy meter calibration device to be tested according to the instructions of the production management platform; and is used to send the calculated multiple electric energy error values ​​to the production management platform.

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