Carrier communication electric energy meter mutual self-checking method, system and device

Through mutual inspection between carrier communication power meters, the metering operation of faulty power meters is discovered and stopped in real time, and the metering loss problem caused by power meters is solved, and the rapid fault detection and loss reduction of power meters are realized.

CN120254745APending Publication Date: 2025-07-04ZHEJIANG CHINT INSTR & METER
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510582872.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

The power meter is not found in time after the fault, resulting in metering losses. The existing technology needs to wait for data collection and analysis before positioning and handling the fault.

Method used

When the carrier LAN is idle, by issuing a mutual inspection command to the power meter, setting a random delay, comparing the data collected by the power meter itself with the power carrier data, judging the fault in real time and stopping the metering operation.

Benefits of technology

Real-time discovery of faulty power meter and timely stop metering, reducing metering losses.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120254745A_ABST
    Figure CN120254745A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of electric energy meters, and discloses a mutual self-checking method, system and device for carrier communication electric energy meters, and the self-checking method comprises the steps: initiating a mutual checking command to the electric energy meters in a carrier local area network when the carrier local area network is idle; a random delay is set for each electric energy meter, and after the delay time is up, power grid data collected by the electric energy meters are sent to power line carriers; comparing the power grid data collected by the electric energy meter with the power grid data on the power line carrier, and judging whether the electric energy meter fails or not according to the comparison result; and when the electric energy meter is judged to have a fault, the metering operation of the faulted electric energy meter is stopped, the faulted electric energy meter is found in real time through mutual inspection among the carrier communication electric energy meters, and the metering operation of the faulted electric energy meter is stopped in time, so that the effect of reducing metering loss is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meters, and particularly to a mutual self-checking method, system and device for carrier communication electric energy meters. Background Art

[0002] An electric energy meter is an electric energy metering device installed by an electric energy seller at the electricity demand side. The electric energy seller charges corresponding fees by referring to the metering value in the electric energy meter. Various test values of the electric energy meter will be calibrated in the factory, such as voltage, frequency, harmonic content, clock, etc. Only after calibration can the electric energy meter accurately measure the metering value on the power grid, which is used by the power bureau for power grid quality analysis and metering charging. However, due to reasons such as electric energy meter devices, usage environment, processing technology, etc., the electric energy meters installed on site will have a certain failure rate, resulting in the collected data not conforming to the actual situation, causing unnecessary losses to users and the power bureau. After a conventional electric energy meter fails, it is necessary to wait for the power bureau to collect data (usually once a day for daily settlement data collection), perform data analysis before it can be located, and then arrange an electrician to perform on-site maintenance or replace the faulty meter. This will result in inevitable metering losses during this period. Summary of the Invention

[0003] In view of this, the present invention provides a mutual self-checking method, system and device for carrier communication electric energy meters to solve the problem of untimely discovery of electric energy meter failures, resulting in metering losses.

[0004] The present invention provides a mutual self-checking method for carrier communication electric energy meters, and the method includes:

[0005] When the carrier local area network is idle, send a mutual self-checking command to the electric energy meters in the carrier local area network;

[0006] Set a random delay for each electric energy meter, and after the delay time arrives, send the grid data collected by the electric energy meter to the power carrier;

[0007] Compare the grid data collected by the electric energy meter itself with the grid data on the power carrier, and judge whether the electric energy meter is faulty according to the comparison result;

[0008] When it is determined that the electric energy meter fails, stop the metering operation of the faulty electric energy meter.

[0009] The present invention provides a mutual self-checking method for carrier communication electric energy meters. Through the mutual self-checking between carrier communication electric energy meters, faulty electric energy meters can be discovered in real time, and the metering operation of the faulty electric energy meter can be stopped in time to achieve the effect of reducing metering losses.

[0010] In an optional implementation manner, the step of sending a mutual self-checking command to the electric energy meters in the carrier local area network when the carrier local area network is idle includes:

[0011] Send a meter reading command to the electricity meters in the carrier local area network;

[0012] Wait for a preset time and determine whether the electricity meter receives the meter reading command again;

[0013] If the electricity meter does not receive the meter reading command again, send a mutual inspection command to the electricity meters in the carrier local area network;

[0014] If the electricity meter receives the meter reading command again, return to the step of waiting for the preset time and determining whether the electricity meter receives the meter reading command again.

[0015] In an alternative embodiment, setting a random delay for each electricity meter includes:

[0016] Sort the electricity meters in the carrier local area network according to a preset rule to generate a sorting sequence;

[0017] From left to right, set a gradually increasing random delay for the electricity meters in the sorting sequence, where the minimum random delay is 1 s and the maximum random delay is 200 s.

[0018] In an alternative embodiment, comparing the grid data collected by the electricity meter itself with the grid data on the power carrier and determining whether the electricity meter is faulty according to the comparison result includes:

[0019] When the difference between the grid data collected by the electricity meter itself and the grid data on the power carrier is greater than a first preset threshold, accumulate the exception counter once;

[0020] When the maximum random delay is exceeded, calculate the accumulated value of the exception counter;

[0021] When the accumulated value is greater than a second threshold, determine that the electricity meter is faulty.

[0022] In an alternative embodiment, comparing the grid data collected by the electricity meter itself with the grid data on the power carrier and determining whether the electricity meter is faulty according to the comparison result further includes:

[0023] When the accumulated value is not greater than the second threshold, determine that the electricity meter is normal and clear the accumulated value of the exception counter, and then return to the step of sending a mutual inspection command to the electricity meters in the carrier local area network when the carrier local area network is idle.

[0024] In an alternative embodiment, the method includes:

[0025] After determining that the electricity meter is faulty, trigger an alarm and push the alarm to the master station system through the carrier local area network.

[0026] Second aspect, the present invention provides a mutual self-checking system for carrier communication watt-hour meters. The system includes: a master station system, a concentrator, and a plurality of watt-hour meters. Among them,

[0027] A plurality of the watt-hour meters and the concentrator form a carrier local area network through carrier communication. The watt-hour meters are installed on the same power line;

[0028] The concentrator and the master station system communicate through a 4G / 5G network;

[0029] A plurality of the watt-hour meters and the concentrator cooperate to execute the mutual self-checking method for carrier communication watt-hour meters in the first aspect or any corresponding embodiment thereof.

[0030] The present invention provides a mutual self-checking system for carrier communication watt-hour meters. Through the mutual inspection between carrier communication watt-hour meters, faulty watt-hour meters can be discovered in real time, and the metering operation of the faulty watt-hour meters can be stopped in time to achieve the effect of reducing metering losses.

[0031] Third aspect, the present invention provides a mutual self-checking device for carrier communication watt-hour meters. The device includes:

[0032] A command initiation module, configured to initiate a mutual inspection command to the watt-hour meters in the carrier local area network when the carrier local area network is idle;

[0033] A delay setting module, configured to set a random delay for each watt-hour meter, and after the delay time arrives, send the grid data collected by the watt-hour meter to the power carrier;

[0034] A fault judgment module, configured to compare the grid data collected by the watt-hour meter itself with the grid data on the power carrier, and judge whether the watt-hour meter is faulty according to the comparison result;

[0035] A fault handling module, configured to stop the metering operation of the faulty watt-hour meter when it is determined that the watt-hour meter is faulty.

[0036] The present invention provides a mutual self-checking device for carrier communication watt-hour meters. Through the mutual inspection between carrier communication watt-hour meters, faulty watt-hour meters can be discovered in real time, and the metering operation of the faulty watt-hour meters can be stopped in time to achieve the effect of reducing metering losses.

[0037] Fourth aspect, the present invention provides a computer device, including: a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the mutual self-checking method for carrier communication watt-hour meters in the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0038] Fifth aspect, the present invention provides a computer-readable storage medium, on which computer instructions are stored, and the computer instructions are used to cause a computer to execute the mutual self-checking method of carrier communication watt-hour meters according to the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0040] Figure 1 is a schematic flowchart of the mutual self-checking method of carrier communication watt-hour meters according to an embodiment of the present invention;

[0041] Figure 2 is a schematic diagram of the mutual self-checking system of carrier communication watt-hour meters according to an embodiment of the present invention;

[0042] Figure 3 is a structural block diagram of the mutual self-checking device of carrier communication watt-hour meters according to an embodiment of the present invention;

[0043] Figure 4 is a schematic diagram of the hardware structure of the computer device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] The embodiments of the present invention provide a mutual self-checking method for carrier communication watt-hour meters, which achieves the effect of reducing measurement losses through mutual inspection between carrier communication watt-hour meters.

[0046] According to an embodiment of the present invention, an embodiment of a mutual self-checking method for carrier communication watt-hour meters is provided. It should be noted that the steps shown in the flowchart of the drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0047] In this embodiment, a carrier communication electric energy meter mutual self-checking method is provided. Figure 1 is a flow chart of a mutual self-checking method of a carrier communication electric energy meter according to an embodiment of the present invention. Figure 1 As shown, the process includes the following steps:

[0048] Step S1, when the carrier local area network is idle, a mutual inspection command is initiated to the electric energy meters in the carrier local area network.

[0049] Specifically, Figure 2 As shown, carrier communication is generally a local area network communication between multiple electricity meters and a concentrator. The concentrator classifies the electricity meters on the same power grid into the same local area network based on the archive information. Therefore, in the same local area network, multiple electricity meters are installed on the same power grid line. The measurement parameters such as grid voltage, grid frequency, voltage harmonics and real-time clock collected by multiple electricity meters should be the same at the same time. Based on the above characteristics, the present application initiates a mutual inspection command to the electricity meters in the carrier local area network during the idle interval of carrier meter reading, so that each electricity meter sends its collected data to the power line through the power carrier communication broadcast, so that each electricity meter can receive the data of other electricity meters, and then compare it with its own collected data, and finally determine whether there is a problem with its own sampling.

[0050] Step S2, setting a random delay for each electric energy meter, and sending the grid data collected by the electric energy meter to the power carrier after the delay time expires.

[0051] Specifically, to avoid conflicts between broadcast commands between energy meters, each energy meter generates a random delay of a minimum of 1s and a maximum of 200s, and staggers the broadcast commands between each energy meter through random delay. After the delay is reached, the energy meter will publish the currently collected grid data (voltage, grid frequency, voltage harmonics, energy meter real-time time, etc.) to the power line through a broadcast command.

[0052] Step S3, comparing the grid data collected by the electric energy meter itself with the grid data on the power carrier, and judging whether the electric energy meter is faulty according to the comparison result.

[0053] Specifically, after receiving the broadcast data on the power carrier, the electric energy meter immediately compares it with its own collected data, and determines whether there is a problem with its own sampling based on the comparison result, and determines whether the electric energy meter is faulty.

[0054] Step S4, when it is determined that the electric energy meter is faulty, the metering operation of the faulty electric energy meter is stopped.

[0055] Specifically, if the electric energy meter determines that there is a problem with itself, it will initiate a self-check alarm and notify the main station system, and decide whether to trigger the stop metering operation based on the configured prerequisites to avoid large metering erroneous data.

[0056] The present invention provides a mutual self-checking method for carrier communication watt-hour meters. Through the mutual check between carrier communication watt-hour meters, faulty watt-hour meters can be detected in real time, and the metering operation of the faulty watt-hour meters can be stopped in time to achieve the effect of reducing metering losses.

[0057] In an alternative embodiment, step S1 includes:

[0058] Step S11, sending a meter reading command to the watt-hour meters in the carrier local area network.

[0059] Step S12, waiting for a preset time and determining whether the watt-hour meter receives the meter reading command again.

[0060] Step S13, if the watt-hour meter does not receive the meter reading command again, sending a mutual check command to the watt-hour meters in the carrier local area network.

[0061] Step S14, if the watt-hour meter receives the meter reading command again, returning to the step of waiting for the preset time and determining whether the watt-hour meter receives the meter reading command again.

[0062] Specifically, the concentrator sends a meter reading command to the watt-hour meters in the carrier local area network. To ensure that the broadcast mutual check command does not conflict with the normal meter reading command on the carrier line, the watt-hour meter will wait for the preset time. If the watt-hour meter does not receive the meter reading command again during this period, the concentrator sends a mutual check command to the watt-hour meters in the carrier local area network. If the watt-hour meter receives the meter reading command again during this period, it returns to step S12. In the embodiment of the present invention, the preset time is 10 minutes.

[0063] In an alternative embodiment, step S2 includes:

[0064] Step S21, sorting the watt-hour meters in the carrier local area network according to a preset rule to generate a sorting sequence.

[0065] Step S22, setting a gradually increasing random delay for the watt-hour meters in the sorting sequence from left to right, where the minimum random delay is 1 s and the maximum random delay is 200 s.

[0066] Specifically, the preset rule can be set according to the acquisition requirements. For example, sorting the watt-hour meters in the carrier local area network in the order from left to right on the power grid line to generate a sorting sequence; or sorting the watt-hour meters in the carrier local area network in the order from right to left on the power grid line to generate a sorting sequence. Only this is taken as an example, and it is not limited to this. After the sorting sequence is generated, a gradually increasing random delay is set for the watt-hour meters in the sorting sequence from left to right, so that each watt-hour meter can generate a random delay with a minimum of 1 s and a maximum of 200 s.

[0067] In an alternative embodiment, step S3 includes:

[0068] Step S31, when the difference between the power grid data collected by the electricity meter itself and the power grid data on the power carrier is greater than a first preset threshold, accumulate the anomaly counter once.

[0069] Step S32, when the maximum random delay is exceeded, calculate the accumulated value of the anomaly counter.

[0070] Step S33, when the accumulated value is greater than a second threshold, determine that the electricity meter has a fault.

[0071] Step S34, when the accumulated value is not greater than the second threshold, determine that the electricity meter is normal and clear the accumulated value of the anomaly counter, and then return to the step of sending a mutual inspection command to the electricity meters in the carrier local area network when the carrier local area network is idle.

[0072] Specifically, after the electricity meter receives the broadcast data on the power carrier, it immediately compares it with its own collected data. If the data difference is greater than the first preset threshold, the anomaly counter is accumulated. When the delay is more than 200 s, the data of other electricity meters should have been compared for a single electricity meter. If the anomaly counter is greater than the second threshold at this time, it is determined that the electricity meter has a fault, and an alarm is triggered and pushed to the master station system through the carrier network, and the metering data collection is closed or maintained according to the predetermined configuration. Among them, the first preset threshold and the second threshold are set according to specific situations. If the anomaly counter is not greater than the second threshold at this time, it indicates that the electricity meter is normal, clear the counter, and return to step S1 to wait for the next judgment.

[0073] In an alternative embodiment, the method includes:

[0074] Step S4, after determining that the electricity meter has a fault, trigger an alarm and push the alarm to the master station system through the carrier local area network.

[0075] After determining that the electricity meter has a fault, trigger an alarm and push the alarm to the master station system through the carrier local area network, so that the power bureau can make a real-time response according to the reported information, reducing the losses of users and the power bureau.

[0076] The present invention also provides a mutual self-checking system for carrier communication electricity meters, as Figure 2 shown, including: a master station system, a concentrator, and a plurality of electricity meters. Among them, the plurality of electricity meters and the concentrator form a carrier local area network through carrier communication, and the electricity meters are installed on the same power line. The concentrator and the master station system communicate through a 4G / 5G network. The plurality of said electricity meters and the concentrator cooperate to execute the mutual self-checking method for carrier communication electricity meters in the above embodiment.

[0077] Specifically, as Figure 2As shown in the figure, the electricity meter and the concentrator form a local area network on the same power line through carrier communication (PLC). Generally, one concentrator is connected to about 200 electricity meters. In a normal networking system, the concentrator generally collects the metering data of the electricity meters once a day, and then packages and pushes it to the master station system through the 4G / 5G network. After the daily settlement data collection once a day is completed, the carrier local area network between the electricity meters is relatively idle. At this time, the carrier communication electricity meters can perform mutual self-checks.

[0078] The present invention provides a mutual self-checking system for carrier communication electricity meters. Through the mutual checks between the carrier communication electricity meters, faulty electricity meters can be discovered in real time, and the metering operations of the faulty electricity meters can be stopped in time to achieve the effect of reducing metering losses.

[0079] In this embodiment, a mutual self-checking device for carrier communication electricity meters is also provided. This device is used to implement the above-mentioned embodiments and preferred implementation manners, and those that have been described will not be repeated. As used hereinafter, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0080] This embodiment provides a mutual self-checking device for carrier communication electricity meters, as Figure 3 shown, including:

[0081] A command initiation module 301, which is used to initiate a mutual self-check command to the electricity meters in the carrier local area network when the carrier local area network is idle.

[0082] A delay setting module 302, which is used to set a random delay for each electricity meter, and after the delay time arrives, send the grid data collected by the electricity meter to the power carrier.

[0083] A fault judgment module 303, which is used to compare the grid data collected by the electricity meter itself with the grid data on the power carrier, and judge whether the electricity meter is faulty according to the comparison result.

[0084] A fault handling module 304, which is used to stop the metering operation of the faulty electricity meter when it is determined that the electricity meter is faulty.

[0085] The further function descriptions of the above-mentioned various modules and units are the same as those in the corresponding above-mentioned embodiments, and will not be repeated here.

[0086] The mutual self-checking device for carrier communication watt-hour meters in this embodiment is presented in the form of functional units. Here, the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and a memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0087] The present invention provides a mutual self-checking device for carrier communication watt-hour meters. Through the mutual checking between carrier communication watt-hour meters, faulty watt-hour meters can be discovered in real time, and the metering operation of the faulty watt-hour meters can be stopped in time to achieve the effect of reducing metering losses.

[0088] An embodiment of the present invention also provides a computer device having the above Figure 3 shown mutual self-checking device for carrier communication watt-hour meters.

[0089] Please refer to Figure 4 , Figure 4 which is a schematic structural diagram of a computer device provided by an optional embodiment of the present invention. As Figure 4 shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Each component communicates with each other using different buses and can be installed on a common motherboard or installed in other ways as needed. The processor can process instructions executed within the computer device, including instructions stored in the memory or on the memory to display graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (such as a server array, a set of blade servers, or a multi-processor system). Figure 4 In

[0090] which, one processor 10 is taken as an example.

[0091] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0092] The memory 20 may include a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some alternative embodiments, the memory 20 may optionally include a memory remotely disposed relative to the processor 10, and these remote memories can be connected to the computer device through a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0093] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk, or a solid-state drive; the memory 20 may further include a combination of the above types of memories.

[0094] The computer device further includes a communication interface 30 for the computer device to communicate with other devices or communication networks.

[0095] The embodiments of the present invention also provide a computer-readable storage medium. The methods according to the embodiments of the present invention can be implemented in hardware, firmware, or be implemented as computer code that can be recorded on a storage medium, or be implemented as computer code originally stored in a remote storage medium or a non-transitory machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the methods described herein can be stored in such software processes on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory, a random access memory, a flash memory, a hard disk, or a solid-state drive, etc.; further, the storage medium may also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code, and when the software or computer code is accessed and executed by the computer, the processor, or the hardware, the methods shown in the above embodiments are implemented.

[0096] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A mutual self-checking method for carrier communication watt-hour meters, characterized in that, The method includes: When the carrier local area network is idle, send a mutual inspection command to the electricity meters in the carrier local area network; Set a random delay for each electricity meter, and after the delay time arrives, send the grid data collected by the electricity meter to the power carrier; Compare the grid data collected by the electricity meter itself with the grid data on the power carrier, and determine whether the electricity meter is faulty according to the comparison result; When it is determined that the electricity meter is faulty, stop the metering operation of the faulty electricity meter.

2. The mutual self-checking method for carrier communication watt-hour meters according to claim 1, characterized in that The step of sending a mutual inspection command to the electricity meters in the carrier local area network when the carrier local area network is idle includes: Send a meter reading command to the electricity meters in the carrier local area network; Wait for a preset time and determine whether the electricity meter receives the meter reading command again; If the electricity meter does not receive the meter reading command again, send a mutual inspection command to the electricity meters in the carrier local area network; If the electricity meter receives the meter reading command again, return to the step of waiting for the preset time and determining whether the electricity meter receives the meter reading command again.

3. The mutual self-checking method for carrier communication watt-hour meters according to claim 1, wherein The step of setting a random delay for each electricity meter includes: Sort the electricity meters in the carrier local area network according to a preset rule to generate a sorting sequence; From left to right, set a gradually increasing random delay for the electricity meters in the sorting sequence, where the minimum random delay is 1 s and the maximum random delay is 200 s.

4. The mutual self-checking method for carrier communication watt-hour meters according to claim 1, characterized in that The step of comparing the grid data collected by the electricity meter itself with the grid data on the power carrier and determining whether the electricity meter is faulty according to the comparison result includes: When the difference between the grid data collected by the electricity meter itself and the grid data on the power carrier is greater than the first preset threshold, accumulate the abnormal counter once; When the maximum random delay is exceeded, calculate the accumulated value of the abnormal counter; When the accumulated value is greater than the second threshold, determine that the electricity meter is faulty.

5. The mutual self-checking method for carrier communication watt-hour meters according to claim 4, characterized in that, The step of comparing the grid data collected by the electricity meter itself with the grid data on the power carrier and determining whether the electricity meter is faulty according to the comparison result further includes: When the accumulated value is not greater than the second threshold, determine that the electricity meter is normal and clear the accumulated value of the abnormal counter, and then return to the step of sending a mutual inspection command to the electricity meters in the carrier local area network when the carrier local area network is idle.

6. The mutual self-checking method for carrier communication watt-hour meters according to claim 4, characterized in that The method includes: After determining that the electricity meter is faulty, trigger an alarm and push the alarm to the master station system through the carrier local area network.

7. A mutual self-checking system for carrier communication watt-hour meters, characterized in that, The system includes: a master station system, a concentrator, and a plurality of electricity meters, where The plurality of electricity meters and the concentrator form a carrier local area network through carrier communication, and the electricity meters are installed on the same power line; The concentrator and the master station system communicate through a 4G / 5G network; The plurality of electricity meters and the concentrator cooperate to execute the mutual self-checking method of carrier communication electricity meters according to any one of claims 1 to 6.

8. A mutual self-checking device for carrier communication watt-hour meters, characterized in that, The device includes: A command initiation module for sending a mutual inspection command to the electricity meters in the carrier local area network when the carrier local area network is idle; A delay setting module for setting a random delay for each electricity meter, and after the delay time arrives, sending the grid data collected by the electricity meter to the power carrier; A fault judgment module, configured to compare the power grid data collected by the electricity meter itself with the power grid data on the power line carrier, and judge whether the electricity meter is faulty according to the comparison result; A fault handling module, configured to stop the metering operation of the faulty electricity meter when it is determined that the electricity meter is faulty.

9. A computer device, characterized in that, Comprising: A memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to execute the mutual self-checking method of the carrier communication electricity meters according to any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that, Computer instructions are stored on the computer-readable storage medium, and the computer instructions are used to cause a computer to execute the mutual self-checking method of the carrier communication electricity meters according to any one of claims 1 to 6.