Electric energy metering device field calibration skill training method, system, equipment and medium

Abstract

The invention discloses an electric energy metering device field calibration skill training method, system, equipment and medium, and relates to the technical field of electric energy metering device calibration training, and the method comprises the steps: generating a fault training scheme and a training operation instruction according to a fault scheme template library based on a training demand; in response to the practical training operation instruction, carrying out practical training safety pre-test, and after the test is passed, starting multi-skill item operation according to a fault practical training scheme sequence; generating a training report based on the monitoring data of the multi-skill project operation process; according to the invention, through a whole training period from fault scheme adaptation, operation process guidance to result feedback, training quality improvement of skills of the trainee from operation to standardized and accurate operation is realized, and operation standardization and accuracy are improved while operation fluency and efficiency of the trainee are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electric energy metering device calibration training, in particular to an electric energy metering device on-site calibration skill practical training method, system, equipment and medium. BACKGROUND

[0002] Electric energy metering device on-site calibration is a key skill to ensure the accuracy of electric energy metering, which is commonly used in power supply enterprises to carry out first inspection, periodic inspection, operation sampling inspection and customer application inspection of metering devices. The electric energy metering device on-site calibration skill operation has high standardization and strong comprehensiveness, and covers many contents such as preliminary inspection of metering devices, wiring inspection, metering wiring correction and work error test. The existing training device can only set an error wiring on the practical training device to train the wiring inspection skill of the students. After the teacher sets the type of error wiring according to the teaching needs, the error wiring is sent to each practical training device through software, and the students analyze the error wiring condition by measuring the voltage, current, phase and other data at the end of the meter. However, the students cannot flexibly and comprehensively train other contents related to electric energy metering device on-site calibration, which leads to the fact that the students cannot determine whether the skill operation is correct in time, and the teacher cannot know the students' mastery of each work content of electric energy metering device on-site calibration in time. SUMMARY

[0003] The purpose of the application is to solve the problems of single fault scheme adaptability of electric energy metering training device and limitation of student operation stage. An electric energy metering device on-site calibration skill practical training method, system, equipment and medium are provided, which avoids the limitation of single error wiring fault type training through the demand adaptation of fault practical training scheme, reduces the probability of illegal operation in practical operation through the pre-test of practical safety, finally generates a practical report, forms a full closed loop practical training from scheme adaptation to operation, and ensures the comprehensiveness and reliability of practical skill.

[0004] To achieve the above purpose, the technical scheme adopted by the embodiments of the application is as follows: In a first aspect, the embodiments of the application provide an electric energy metering device on-site calibration skill practical training method, which includes the following steps: Based on the practical training needs, a fault practical training scheme and practical operation instruction are generated according to a fault scheme template library; A pre-test of practical safety is carried out in response to the practical operation instruction, and after the test is passed, a multi-element skill item operation is started in sequence according to the fault practical training scheme; A practical report is generated based on the monitoring data of the multi-element skill item operation process.

[0005] In the scheme, by matching the fault scheme template according to the practical training needs, it is ensured that the practical training covers the real scene of on-site verification and matches the needs of different skill levels, solves the problem that the traditional single fault practical training is disconnected with the actual work, improves the comprehensive ability of students to deal with faults, improves the pertinence and effectiveness of students' skill training, and solves the limitation that the fault simulation of the traditional device only adapts to specific equipment; through the safety pre-test, the students' safety operation cognition can be strengthened before the practical training, so as to avoid the safety risk of practical training and start the skill operation, ensure the safety and order of the practical training process, and improve the operation standardization and practical operation quality of the students; according to the matched fault practical training scheme, the practical operation of various skill items is carried out, which is in line with the actual process of on-site verification of electric energy metering device, and it is ensured that the students can quickly adapt to the actual verification scene after practical training, and the operation standardization and accuracy of the students' skills are improved.

[0006] Preferably, the fault training scheme and the training operation instruction are generated based on the training needs and the fault scheme template library, comprising: Based on the training needs, the training scheme template suitable for the training target is called from the fault scheme template library, and the training scheme template at least includes a basic training template and a skill assessment template, different templates correspond to different training scene needs; Based on the skill item parameters and the scoring standard configured based on the training scheme template, wherein the skill item parameters at least include fault types and corresponding verification data, and operation parameter benchmarks of the electric energy metering simulation device; Based on the training scheme template with completed configuration, the fault training scheme is obtained, and the training operation instruction is generated.

[0007] Preferably, the safety pre-test is carried out in response to the training operation instruction, and after the test is passed, the multi-element skill item operation is started in sequence according to the fault training scheme, comprising: Based on the fault training scheme, the corresponding skill item parameters and the operation flowchart are cached, and based on the training operation instruction, the safety knowledge test of the electric energy metering device is carried out, and after the test is passed, the skill item simulation operation is carried out according to the skill item parameters and the operation flowchart; The multi-element skill item at least includes metering device preliminary inspection, metering device wrong connection line inspection, metering device wrong connection line correction, and metering device error test.

[0008] Preferably, the metering device wrong connection line inspection comprises: The voltage phase sequence and the current phase sequence of the simulation electric energy metering device under the skill operation of the student are obtained, whether the phase table connection is reversed is judged based on the voltage phase sequence and the current phase sequence, and if the phase table connection is reversed, the operation early warning is triggered; The actual measurement vector diagram is constructed according to the voltage phase sequence and the current phase sequence, and the parameter comparison table is generated by comparing the skill item parameters with the voltage phase sequence and the current phase sequence; Determine the skill operation standardization of the trainee based on the measured vector diagram or the parameter comparison table, and automatically score based on the trainee operation process.

[0009] Preferably, the meter wiring correction includes: Generate a wiring correction diagram based on the meter wiring inspection results; After logical verification and terminal verification of the wiring correction diagram, modify the wiring of the simulated electric energy metering device and monitor the rewiring process parameters in real time; Determine whether the wiring correction operation is qualified based on the rewiring process parameters. If qualified, proceed to the next operation process; if not, locate the problem point to restart the rewiring process.

[0010] Preferably, the meter error test includes: Control the simulated electric energy metering device to access the verification instrument, control the simulated electric energy metering device to increase the flow and pressure, and measure the electric energy meter error in real time through the verification instrument, including basic error, variation error and comprehensive error; Determine whether the basic error, variation error and comprehensive error exceed the error threshold based on the error item in the skill item parameter, and mark the over-standard load point, and generate corresponding improvement suggestions based on the over-standard load point.

[0011] Preferably, after the monitoring data based on the multi-element skill item operation process generates the training report, the method further includes: Generate a personalized training plan based on the training report, compare the scores of the trainee based on the personalized training plan with the first training score, and optimize the personalized training plan according to the score difference.

[0012] In a second aspect, the embodiments of the present application provide an electric energy metering device field verification skill training system, comprising: A training plan module for generating a fault training plan and a training operation instruction based on a training requirement according to a fault scheme template library; A skill operation module for responding to the training operation instruction to perform a pre-training safety test, and sequentially starting a multi-element skill item operation according to the fault training plan after the test is passed, and generating a training report based on the monitoring data of the multi-element skill item operation process.

[0013] In a third aspect, the embodiments of the present application provide an electronic device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; the memory is used to store a computer program; the processor is used to execute the program stored on the memory to realize the method steps of the first aspect described above.

[0014] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the method described in the first aspect above.

[0015] The beneficial effects of this application are: 1. The fault solution template library provides a variety of basic templates, which reduces the time teachers spend developing solutions and enables personalized adaptation of solutions for each teacher, thereby improving the relevance of practical training and ensuring its effectiveness and feasibility. 2. Pre-training safety tests filter out trainees with weak safety knowledge and prevent violations; real-time monitoring data during operation provides early warnings to avoid ineffective operations, such as measurement deviations caused by reversed phase meter connection, thereby improving operational accuracy and reducing rework throughout the entire process due to accumulated errors. 3. By allowing students to revert to and re-operate on a single skill item, the limitation of starting over from scratch is overcome, thereby improving operational error tolerance, reducing the cost of trial and error for students, and improving their problem-solving abilities. Furthermore, specialized training plans are generated based on the training report, avoiding blind repetitive training and improving the efficiency of students' skill improvement. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0017] Figure 1 A flowchart illustrating the on-site verification skills training method for electricity metering devices provided in this application embodiment.

[0018] Figure 2 A schematic diagram of the on-site verification skills training system module for electricity metering devices provided in this application embodiment.

[0019] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of this application is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely one preferred embodiment of this application and are only used to explain this application. They do not limit the scope of protection of this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Example 1: As Figure 1 As shown, a training method for on-site verification skills of electricity metering devices includes: S1. Based on the training requirements, generate fault training schemes and training operation instructions according to the fault scheme template library; As an optional implementation, step S1 includes: Based on the training requirements, the training scheme templates adapted to the training objectives are retrieved from the fault scheme template library. The training scheme templates include at least a basic training template and a skills assessment template, with different templates corresponding to different training scenario requirements. Based on the training scheme template, configure skill project parameters and scoring criteria. The skill project parameters include at least the fault type and corresponding verification data, as well as the operating parameter benchmark of the power metering simulation device. Based on the configured training scheme template, obtain the fault training scheme and generate training operation instructions.

[0022] In some embodiments, the basic training template corresponds to the training scenario for beginners, while the skills assessment template corresponds to the training scenario for advanced learners. Teachers log into their computers and select a template from the fault scheme template library that matches the training objective. Based on the template, they customize the fault types, core parameters of the simulated energy metering device, and scoring criteria. For example, the basic training template sets up a single incorrect wiring fault and basic parameter verification, while the skills assessment template sets up a combination of faults including incorrect wiring, voltage phase loss, and transformer short circuit, along with full parameter verification. The core parameters of the simulated energy metering device include at least rated voltage, rated current, voltage phase sequence reference (including phase difference), and error judgment threshold. The scoring criteria include weighted scoring for operational standardization, accuracy, time consumption, and safety; for example, operational accuracy accounts for 50%, standardization for 30%, efficiency for 10%, and safety for 10%.

[0023] Understandably, various faults can be addressed and solutions distributed via the teacher's computer. The simulated energy metering device (and its components) automatically responds, completing a series of complex operations such as fault setting, data acquisition, analysis, and result calculation, reducing the hassle and errors caused by manual operation. During on-site energy meter verification training, a pre-set program can simulate corresponding faults according to the student's current skill sub-item (i.e., each skill item) and automatically restore that part of the fault. Compared to conventional faulty wiring simulation energy metering devices, fault setting is more flexible. On the one hand, it avoids faults encountered in earlier operations affecting subsequent operations. For example, if a voltage phase loss is not restored during the initial inspection, the conventional vector diagram method cannot be used for the next step of faulty wiring analysis. By adopting a step-by-step fault restoration method according to the progress of skill sub-items, complex situations where various faults may coexist in the work site can be simulated. On the other hand, the on-demand fault setting method can enable selective execution of skill sub-item training. For example, faults related to incorrect wiring can be omitted, thereby skipping the incorrect wiring inspection and correction training and directly entering the error test training to simulate the situation of the electricity meter malfunctioning in a real environment. This makes the practical training mode more diverse and is conducive to carrying out targeted reinforcement training.

[0024] S2. Respond to the training operation instructions to conduct a pre-training safety test. After passing the test, start the operation of multiple skills projects in sequence according to the fault training plan.

[0025] As an optional implementation, step S2 includes: Based on the fault training scheme, the corresponding skill project parameters and operation flowchart are cached, and the safety knowledge test of the power metering device is conducted based on the training operation instructions. After passing the test, the skill project simulation operation is carried out according to the skill project parameters and operation flowchart. The multi-skills program should include at least the initial inspection of measuring devices, the inspection of incorrect wiring of measuring devices, the correction of incorrect wiring of measuring devices, and the testing of measuring device errors.

[0026] In some embodiments, the initial inspection of the metering device includes: The following parameters are collected using the electricity meter display and measuring tools: voltage amplitude (Ua, Ub, Uc), current amplitude (Ia, Ib, Ic), active power direction, and phase sequence status. Trainees select suspected faults (such as voltage phase loss and current loss) through the simulation operation platform. The actual parameters of the simulated power metering device are compared with the trainees' selections to quickly determine whether they are correct or not. If the determination is correct, the voltage and current amplitudes will be restored to their rated values, clearing the way for subsequent incorrect wiring checks; if the determination is incorrect, an alarm message will be displayed: "Voltage phase failure was missed, core basis: Ub=0V (normal should be 220V)", and "Voltage phase failure detection techniques" will be pushed to you.

[0027] As an optional implementation, the metering device miswiring check includes: The system obtains the voltage and current phase sequence of the simulated power metering device under the skill operation of the trainee, and determines whether the phase meter wiring is reversed based on the voltage and current phase sequence. If the phase meter wiring is reversed, an operation warning is triggered. A measured vector diagram is constructed based on the voltage phase sequence and current phase sequence, and a parameter comparison table is generated by comparing the skill item parameters with the voltage phase sequence and current phase sequence. The accuracy of trainees' skill operation is determined based on the measured vector diagram or the parameter comparison table, and an automatic score is given based on the trainees' operation process.

[0028] As an optional implementation, the correction of the incorrect wiring of the metering device includes: Generate a wiring correction diagram based on the results of the metering device wiring error inspection; After performing logic and terminal verification on the wiring correction diagram, the wiring of the simulated power metering device is modified, and the parameters of the wiring modification process are monitored in real time. The corrective operation for incorrect wiring is determined based on the parameters of the rewiring process. If it is correct, the next operation process is initiated; otherwise, the problem point is located and the rewiring process is restarted.

[0029] Specifically, based on the results of the incorrect wiring inspection, trainees draw corrected wiring diagrams on the simulation platform (including labeling terminal numbers and wire colors). The platform performs real-time logic and terminal checks. For example, logic check: if an open circuit is drawn on the secondary side of the current transformer, a warning will be issued: "Violation of safety regulations, open circuit on the secondary side of the current transformer is prohibited." Terminal check: if a voltage wire is connected to a current terminal, a message will be displayed: "Terminal type mismatch, voltage terminal is labeled 'V', current terminal is labeled 'A'." Trainees then modify the wiring according to the correction diagram. The simulated power metering device collects parameters of the modification process in real time, including at least contact resistance and wire connection status. For example, if the contact resistance is greater than 1Ω, a message will be displayed: "Terminal 3 has poor contact, resistance 1.2Ω is greater than 0.5Ω, please tighten again." If live wiring is detected (wire insertion or removal when the voltage is greater than 36V), the system immediately suspends the training and requires trainees to study the safety regulations before resuming the operation.

[0030] In this embodiment, by performing logical verification and terminal verification on the wiring correction diagram, the accuracy and adaptability of the correction diagram are ensured, invalid operations are avoided, operational deviations are corrected in a timely manner, and the rework of the entire process caused by the accumulation of errors is reduced, so as to improve the accuracy and standardization of trainees' operations.

[0031] As an optional implementation, the measurement device error test includes: The simulated energy metering device is connected to the calibrator. The simulated energy metering device is controlled to increase current and voltage, and the energy meter error, including basic error, variation and comprehensive error, is measured in real time by the calibrator. Based on the error items in the skill project parameters, determine whether the basic error, variation and comprehensive error exceed the error threshold, mark the excessive load points, and generate corresponding improvement suggestions based on the excessive load points.

[0032] In some embodiments, the system automatically matches the communication protocol through the device model compatibility library when the student connects to the field calibration instrument. If the model is not included, a similar model (such as HJD-4000) is selected or the teacher is contacted to add it. After selecting the compatible device, the wiring is done according to the procedure (voltage line to the secondary voltage terminal, current line to the current loop in series), and the wiring compliance is checked. If the current line is reversed, a reconnection alarm is triggered. After the wiring is completed, the student performs step-by-step current and voltage increases, simulating a power metering device to monitor the load stability in real time. If the load fluctuation exceeds the standard fluctuation threshold, or if the load fluctuation is less than or equal to 0.5, a current fluctuation alarm is triggered, prompting the student to check the current loop wiring.

[0033] Furthermore, the basic error is obtained by comparing the error values ​​of each load point with the benchmark, the variation is obtained by calculating the difference between the two measurements of the same load point, and the comprehensive error is calculated by the three-phase metering device. The basic error, variation and comprehensive error are added together. If the total score exceeds the preset error threshold, a score is given according to the corresponding standard and weight in the scoring rules.

[0034] In this embodiment, the skills training also includes data archiving. Specifically, trainees perform finishing operations according to specifications, including at least disconnecting the calibrator wiring, restoring the original wiring of the measuring device, turning off the power, and tidying up the tools. The system records the operation time and compliance. If the power is turned off without disconnecting the wiring, a prompt to disconnect the calibrator wiring will be displayed to avoid equipment damage and other alarm messages. At the same time, the system automatically generates a training data record table, which includes the core parameters, measurement results, and judgment results of each skills training item, ultimately forming a training database to facilitate data traceability and unified management of training data.

[0035] In other embodiments, this embodiment can change the electricity meter's power error by modifying the output interval of the simulated pulses, thereby effectively addressing sudden changes in the electricity meter's power level. Specifically: When configuring skill project parameters based on the training scheme template, this includes configuring the pulse information of the simulated power metering device; When an error occurs in the electricity meter's power consumption, the output interval of the pulse information is dynamically adjusted to change the power consumption error.

[0036] In some examples, for an energy meter with a constant value of 1600, the pulse light flashes 1600 times (1600 pulses are output from the pulse output terminal) to measure 1 kWh of electricity. For a 1000W load consuming 1 kWh in 1 hour, with the power remaining constant, the interval between each flash is approximately 2.25 seconds (each pulse at the pulse output terminal is 2.25 seconds apart). By changing the pulse interval to 1.125 seconds, the number of pulses per hour becomes 3200. The on-site calibrator calculates the electricity meter reading based on the number of pulses within a certain time period, and then calculates the actual electricity consumption based on the actual voltage and current values. The electricity consumption error is then calculated using the formula (displayed value of the energy meter - actual electricity consumption) / actual electricity consumption * 100%, thus correcting the energy meter's accuracy.

[0037] It should be noted that error testing is the core part of on-site verification of electricity metering devices, which directly determines the accuracy of metering. In this embodiment, error measurement is achieved under different load conditions by increasing current and pressure, which replicates the real on-site verification scenario. The basic error, variation, and comprehensive error are used as verification indicators to accurately determine the compliance of the trainee's measurement results, avoiding the subjectivity and error of manual judgment.

[0038] S3. Generate training reports based on monitoring data of multi-skill project operation processes.

[0039] As an optional implementation, after generating the training report from the monitoring data based on the multi-skill project operation process, the method further includes: Personalized training plans are generated based on the training report, and the scores of students based on the personalized training plans are compared with their scores in the first training session. The personalized training plans are then optimized based on the score difference.

[0040] In this embodiment, by generating personalized training programs, trainees can more clearly understand their own shortcomings, identify targeted improvement directions and weak skills, and form a closed-loop training of operation, feedback and reinforcement, avoiding blind repetitive training and improving skills and efficiency.

[0041] Based on the same inventive concept, this application also provides an on-site verification skills training system for electricity metering devices, corresponding to the on-site verification skills training method for electricity metering devices, such as... Figure 2 As shown, the system includes: The training scheme module is used to generate fault training schemes and training operation instructions based on training needs and the fault scheme template library. The skills operation module is used to conduct pre-training safety tests in response to training operation instructions. After passing the test, the module starts the operation of multiple skills projects in sequence according to the fault training plan, and generates a training report based on the monitoring data of the operation process of multiple skills projects.

[0042] In this embodiment, by matching fault scheme templates according to training needs, the training ensures that it covers real-world on-site verification scenarios and matches the requirements of different skill levels. This solves the problem of the disconnect between traditional single-fault training and actual work, improves trainees' comprehensive fault handling capabilities, enhances the relevance and effectiveness of trainees' skills training, and overcomes the limitation of traditional device fault simulation being only applicable to specific equipment. Pre-training safety tests strengthen trainees' awareness of safe operation before training, thereby mitigating safety risks before starting skills training projects, ensuring a safe and orderly training process, and improving trainees' operational standardization and practical quality. The practical training of various skills projects based on the matched fault training schemes aligns with the actual process of on-site verification of power metering devices, ensuring that trainees can quickly adapt to actual verification scenarios after training, improving the standardization and accuracy of trainees' skills.

[0043] This application also provides an electronic device, such as... Figure 3 As shown, it includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; Memory, used to store computer programs; The processor is used to execute programs stored in memory to implement on-site verification skills training methods for electricity metering devices.

[0044] The communication bus mentioned in the above electronic devices can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in the diagram, but this does not mean that there is only one bus or one type of bus.

[0045] The communication interface is used for communication between the aforementioned electronic devices and other devices.

[0046] The memory may include random access memory (RAM) or non-volatile memory (NVM), such as at least one disk storage device. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

[0047] The processors mentioned above can be general-purpose processors, including central processing units (CPUs), network processors (NPs), etc.; they can also be digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0048] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements a method for on-site verification skills training of an electricity metering device.

[0049] The above-described embodiments are preferred embodiments of this application and are not intended to limit the specific scope of this application. The scope of this application includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with the shape, structure, and method of this application are within the protection scope of this application.

Claims

1. A training method for on-site verification skills of electricity metering devices, characterized in that: Includes the following steps: Based on practical training needs, fault training schemes and practical training operation instructions are generated from the fault scheme template library. In response to the training operation instructions, a pre-training safety test is conducted. After the test is passed, the operation of the multi-skill projects is initiated in sequence according to the fault training plan. Training reports are generated based on monitoring data from the operational procedures of multi-skill projects.

2. The on-site verification skills training method for electricity metering devices according to claim 1, characterized in that: The process of generating fault training schemes and operation instructions based on the fault scheme template library, according to practical training needs, includes: Based on the training requirements, the training scheme templates adapted to the training objectives are retrieved from the fault scheme template library. The training scheme templates include at least a basic training template and a skills assessment template, with different templates corresponding to different training scenario requirements. Based on the training scheme template, configure skill project parameters and scoring criteria. The skill project parameters include at least the fault type and corresponding verification data, as well as the operating parameter benchmark of the power metering simulation device. Based on the configured training scheme template, obtain the fault training scheme and generate training operation instructions.

3. The on-site verification skills training method for electricity metering devices according to claim 2, characterized in that: The system responds to training operation instructions by conducting a pre-training safety test. After passing the test, the system initiates multi-skill project operations according to the fault training plan sequence, including: Based on the fault training scheme, the corresponding skill project parameters and operation flowchart are cached, and the safety knowledge test of the power metering device is conducted based on the training operation instructions. After passing the test, the skill project simulation operation is carried out according to the skill project parameters and operation flowchart. The multi-skills program should include at least the initial inspection of measuring devices, the inspection of incorrect wiring of measuring devices, the correction of incorrect wiring of measuring devices, and the testing of measuring device errors.

4. The on-site verification skills training method for electricity metering devices according to claim 3, characterized in that: The inspection for incorrect wiring of the metering device includes: The system obtains the voltage and current phase sequence of the simulated power metering device under the skill operation of the trainee, and determines whether the phase meter wiring is reversed based on the voltage and current phase sequence. If the phase meter wiring is reversed, an operation warning is triggered. A measured vector diagram is constructed based on the voltage phase sequence and current phase sequence, and a parameter comparison table is generated by comparing the skill item parameters with the voltage phase sequence and current phase sequence. The accuracy of trainees' skill operation is determined based on the measured vector diagram or the parameter comparison table, and an automatic score is given based on the trainees' operation process.

5. The on-site verification skills training method for electricity metering devices according to claim 3, characterized in that: The correction of the incorrect wiring of the metering device includes: Generate a wiring correction diagram based on the results of the metering device wiring error inspection; After performing logic and terminal verification on the wiring correction diagram, the wiring of the simulated power metering device is modified, and the parameters of the wiring modification process are monitored in real time. The corrective operation for incorrect wiring is determined based on the parameters of the rewiring process. If it is correct, the next operation process is initiated; otherwise, the problem point is located and the rewiring process is restarted.

6. The on-site verification skills training method for electricity metering devices according to claim 3, characterized in that: The error test of the measuring device includes: The simulated energy metering device is connected to the calibrator. The simulated energy metering device is controlled to increase current and voltage, and the energy meter error, including basic error, variation and comprehensive error, is measured in real time by the calibrator. Based on the error items in the skill project parameters, determine whether the basic error, variation and comprehensive error exceed the error threshold, mark the excessive load points, and generate corresponding improvement suggestions based on the excessive load points.

7. The on-site verification skills training method for electricity metering devices according to claim 1, characterized in that: After generating the training report from the monitoring data based on the multi-skill project operation process, the method further includes: Personalized training plans are generated based on the training report, and the scores of students based on the personalized training plans are compared with their scores in the first training session. The personalized training plans are then optimized based on the score difference.

8. A training system for on-site verification skills of electricity metering devices, applicable to the training method for on-site verification skills of electricity metering devices as described in any one of claims 1-7, characterized in that: include: The training scheme module is used to generate fault training schemes and training operation instructions based on training needs and the fault scheme template library. The skills operation module is used to conduct pre-training safety tests in response to training operation instructions. After passing the test, the module starts the operation of multiple skills projects in sequence according to the fault training plan, and generates a training report based on the monitoring data of the operation process of multiple skills projects.

9. An electronic device, characterized in that: include: The device includes a processor, a communication interface, a memory, and a communication bus. The processor, communication interface, and memory communicate with each other via the communication bus. The memory stores computer programs. When the processor executes the program stored in the memory, it implements the steps of the on-site verification skills training method for the power metering device as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the on-site verification skills training method for electricity metering devices as described in any one of claims 1-7.

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