Fault identification method and system for electricity meter

Abstract

The invention discloses a fault identification method and system for an electric meter, and relates to the technical field of fault identification. Running information of the electricity meter is acquired through a sensor arranged in the electricity meter, and the data acquisition module sends the acquired electricity meter information to the server for storage; analyzing the ammeter operation information to obtain an ammeter operation evaluation value, and sending the ammeter operation evaluation value to a server for storage; the to-be-maintained electricity meters are obtained from the server and distributed to corresponding maintenance personnel, the maintenance personnel carry out maintenance according to the distributed to-be-maintained electricity meters, and maintenance information of the electricity meters is uploaded after maintenance is completed; through maintenance integral excitation and data analysis, the work performance of maintenance personnel is evaluated, the maintenance process is optimized, and a more reasonable maintenance plan is made, so that the efficiency and quality of maintenance work are improved, and the operation stability of power equipment and the overall management level of a power system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fault identification, and in particular to a fault identification method and system for an electric meter. Background Art

[0002] Electricity meters are important devices for measuring electricity consumption. Fault identification can ensure the metering accuracy of electricity meters and prevent metering errors caused by meter failures, thereby ensuring that users' electricity bills are accurately calculated; faulty electricity meters may cause power loss or waste. By promptly identifying and repairing faults, the waste of power resources can be reduced and energy efficiency can be improved; it may also cause electrical safety problems, such as short circuits and overloads. Timely identification of meter failures can help prevent safety hazards such as electrical fires and protect electricity safety; electricity meters are often used for power load analysis, demand forecasting and other tasks. Ensuring the normal operation of electricity meters is crucial to the accuracy of data. Timely fault identification can ensure the reliability of these data and support scientific decision-making and management; At present, some meter failures may not immediately show obvious abnormalities in the early stages, especially when the frequency of data collection and monitoring is low, and early signs of failure may be missed. At the same time, the failure cannot be handled accurately and promptly, resulting in low responsiveness and efficiency in fault handling. Summary of the invention

[0003] The main purpose of the present invention is to provide a fault identification method and system for an electric meter to overcome the problems mentioned in the above background technology.

[0004] To achieve the above object, according to one aspect of the present invention, a fault identification method for an electric meter is provided, the method comprising the following steps: S1: The operation information of the electric meter is collected through the built-in sensor of the electric meter, and the data collection module sends the collected electric meter information to the server for storage; S2: Analyze the meter operation information to obtain the meter operation evaluation value and send it to the server for storage; the specific steps are as follows: Retrieve the current value, voltage value, signal strength value, temperature value and humidity value of the electric meter at different collection times, and record them as Lij, Yij, Qij, Wij and Dij respectively; where i=1, 2, 3...I, where i=1, 2, 3...I, I is a positive integer, I represents the total number of electric meter devices, and i represents the serial number of any one of the electric meters; where j=1, 2, 3...J, J is a positive integer, J represents the total number of collection times, and i represents the serial number of any one of the collection times; obtain the rated current and rated voltage of each electric meter, and set each electric meter to correspond to a standard operating temperature, standard operating humidity and standard signal strength, and record them as LZ, YZ, WZ, DZ and QZ respectively; substitute the values ​​of the current value Lij, the voltage value Yij, the signal strength value Qij, the temperature value Wij, the humidity value Dij, the rated current value LZ, the rated voltage value YZ, the standard operating temperature value WZ, the standard operating humidity value DZ and the standard signal strength value QZ into the formula The running state value Hij is calculated, where a1, a2, a3, a4 and a5 are the set weight factors respectively; Set an operation status threshold interval, compare and analyze the operation status value with the set operation status threshold interval, when the operation status value is greater than the maximum value in the set threshold interval, the third-level operation environment is accumulated once; when the operation status value is within the set operation status threshold interval, the second-level operation environment is accumulated once; when the operation status value is less than the minimum value of the set operation status threshold interval, the operation environment is accumulated once; the cumulative number of the third-level operation environment, the second-level operation environment and the first-level operation environment are counted respectively, and they are recorded as P3, P2 and P1 respectively; the operation status values ​​corresponding to the third-level operation environment, the second-level operation environment and the first-level operation environment are summed up to obtain the third-level environment value, the second-level environment value and the first-level environment value, and they are recorded as P6, P5 and P4 respectively; substitute the values ​​of the third-level operation environment cumulative number P3, the second-level operation environment cumulative number P2, the first-level operation environment cumulative number P1, the third-level environment value P6, the second-level environment value P5 and the first-level environment value P4 into the formula The operation evaluation value K is calculated, where b1, b2 and b3 are respectively the set weight factors, and b3>b2>b1>0; S3: Obtain the electric meter to be maintained through the server and assign it to the corresponding maintenance personnel; S4: The maintenance personnel perform maintenance according to the assigned meters to be maintained, and upload the maintenance information of the meters after the maintenance is completed.

[0005] Furthermore, the comparison method of the running evaluation value is as follows: An operation evaluation threshold interval is set, and the operation evaluation value is compared and analyzed with the operation evaluation threshold interval. When the operation evaluation value of the electric meter is greater than the maximum value of the set operation evaluation threshold interval, the electric meter is marked as a normal electric meter; when the operation evaluation value of the electric meter is within the set operation evaluation threshold interval, the electric meter is marked as a priority maintenance electric meter; when the operation evaluation value of the electric meter is less than the minimum value of the set operation evaluation threshold interval, the electric meter is marked as an emergency maintenance electric meter; and the priority maintenance electric meter and the emergency maintenance electric meter are marked as meters to be maintained, thereby obtaining the operation evaluation value of each meter to be maintained and sending it to the server for storage.

[0006] Furthermore, the specific maintenance allocation steps are as follows: Step 1: The maintenance personnel terminal (the personnel terminal to be maintained includes but is not limited to smartphones and mobile applications, etc.) is recorded as Rn, where n=1, 2, 3...N, N is a positive integer, N represents the total number of maintenance personnel terminals, and n represents the sequence number of any maintenance personnel terminal; obtain the personnel information of the maintenance personnel stored in the server, where the personnel information includes name, contact information, employment time, total maintenance times, total maintenance points and number of maintenance to be maintained; Step 2: According to the maintenance personnel's entry time and the current system time, the maintenance personnel's entry time is obtained and marked as TRn; the total number of maintenance performed by the maintenance personnel is obtained and recorded as MRn; the total maintenance points of the maintenance personnel are obtained and recorded as FRn; the total number of maintenance to be performed by the maintenance personnel is obtained and recorded as VRn; Step 3: Substitute the values ​​of the maintenance personnel's employment time TRn, total maintenance times MRn, total maintenance points FRn, and total number of maintenance items VRn into the set formula The maintenance priority value URn of the maintenance personnel is calculated; wherein c1, c2, c3 and c4 are respectively the set weight factors; Step 4: Set a maintenance priority threshold and compare and analyze it with the maintenance priority value. When the maintenance priority value is greater than or equal to the set maintenance priority threshold, the maintenance personnel is classified into the first maintenance sequence for emergency maintenance of the meter's fault maintenance; when the maintenance priority value is less than the set maintenance priority threshold, the maintenance personnel is classified into the second maintenance sequence for priority maintenance of the meter's fault maintenance.

[0007] Furthermore, the specific steps for maintaining the electric meter to be maintained are: Step 1: The maintenance personnel arrives at the assigned meter to be maintained, and identifies the meter number to be maintained through the maintenance personnel terminal for matching. When the maintenance personnel successfully matches the meter information to be maintained, a signal of successful matching is sent to the server. The server generates a maintenance signal and sends it to the maintenance personnel terminal and marks the current sending time as the maintenance start time. Step 2: After receiving the maintenance signal, the maintenance personnel starts to maintain the meter to be maintained; after the maintenance is completed, the maintenance personnel sends a completion signal to the server and marks the current time as the maintenance end time, where the time difference between the maintenance start time and the maintenance end time is the maintenance time of the maintenance personnel, which is recorded as XRn; at the same time, the number of meters to be maintained is reduced by one, the number of maintenance times of the maintenance personnel to be maintained is increased by one, and the maintenance information of the maintenance personnel is sent to the server for storage; Step 3: Use the formula The maintenance integral value FRn1 of the maintenance personnel is calculated; Indicates the preset weight factor of the meter to be maintained, =1 or 2, 1 indicates the preset weight factor for the priority maintenance of the meter. 2 represents the preset weight factor for emergency maintenance meters, and 1< 2. Send the maintenance staff's maintenance score value to the server storage, and sum it with the previous maintenance total score value to obtain the current maintenance total score FRn, and update the maintenance staff's personnel information; and send the maintenance staff's maintenance information to the server storage.

[0008] Furthermore, the allocation rule of the first maintenance personnel sequence and the second maintenance personnel sequence is: Count the first maintenance personnel sequence and the second maintenance personnel sequence; sort the emergency maintenance meters according to the operation evaluation value from small to large, allocate the emergency maintenance meter with the smallest operation evaluation value, select the personnel in the first maintenance sequence with the largest maintenance priority value as the personnel to be maintained for the emergency maintenance meter, and increase the number of personnel to be maintained by one, and update the number of personnel to be maintained to S3; sort the priority maintenance meters according to the operation evaluation value from small to large, allocate the meter with the smallest operation evaluation value among the priority maintenance meters, select the personnel in the second maintenance sequence with the largest maintenance priority value as the personnel to be maintained for the priority maintenance meter, and increase the number of personnel to be maintained by one, and update the number of personnel to be maintained to S3: The maintenance information of the emergency maintenance meter and the priority maintenance meter is sent to the terminals of the first maintenance sequence personnel and the second maintenance sequence personnel; the maintenance information includes the number information of the emergency maintenance meter and the priority maintenance meter, the meter operation data and the meter operation evaluation value.

[0009] Furthermore, the data acquisition module includes a voltage sensor, a current transformer, a wireless communication transmitter and receiver, a temperature sensor and a humidity sensor for collecting meter operation information; the meter operation information includes the meter's current value, voltage value, signal strength value, temperature value and humidity value.

[0010] In order to achieve the above object, according to another aspect of the present invention, a fault identification system for an electric meter is provided, the system comprising: a data acquisition module, a server, a fault analysis module, a maintenance management module and a fault processing module; The data acquisition module collects the operation information of the electric meter through the built-in sensor of the electric meter, and the data acquisition module sends the collected electric meter information to the server for storage; The fault analysis module analyzes the meter operation information to obtain the meter operation evaluation value and sends it to the server for storage; the specific steps are as follows: Retrieve the current value, voltage value, signal strength value, temperature value and humidity value of the electric meter at different collection times; obtain the rated current and rated voltage of each electric meter, and set each electric meter to correspond to a standard operating temperature, standard operating humidity and standard signal strength; normalize the values ​​of the current value, voltage value, signal strength value, temperature value, rated current value, rated voltage value, standard operating temperature value, standard operating humidity value and standard signal strength value to obtain the operating status value; Set an operation status threshold interval, compare and analyze the operation status value with the set operation status threshold interval, when the operation status value is greater than the maximum value in the set threshold interval, the third-level operation environment is accumulated once; when the operation status value is within the set operation status threshold interval, the second-level operation environment is accumulated once; when the operation status value is less than the minimum value of the set operation status threshold interval, the operation environment is accumulated once; the cumulative number of the third-level operation environment, the second-level operation environment and the first-level operation environment are counted respectively; the operation status values ​​corresponding to the third-level operation environment, the second-level operation environment and the first-level operation environment are summed up to obtain the third-level environment value, the second-level environment value and the first-level environment value; the cumulative number of the third-level operation environment, the second-level operation environment and the first-level operation environment and the values ​​of the third-level environment value, the second-level environment value and the first-level environment value are normalized to obtain the operation evaluation value; The maintenance management module obtains the electricity meters to be maintained through the server and assigns them to the corresponding maintenance personnel; The fault handling module is used by maintenance personnel to perform maintenance according to the assigned meters to be maintained, and upload the maintenance information of the meters after the maintenance is completed.

[0011] Beneficial effects of the present invention: by collecting the operation information of the electric meter in real time and comparing it with the preset rated value and standard operating conditions, the operation status of the electric meter can be accurately monitored, which is helpful to discover potential abnormalities or faults early and prevent the electric meter from running for a long time under abnormal conditions, thereby ensuring the measurement accuracy and equipment safety; by calculating the operation status value and the operation stability value, it can objectively reflect whether the operation environment of the electric meter is stable, and the degree of compliance of various parameters with the design standards, which can provide specific data support for power management personnel and enable a more intuitive understanding of the operation status of the electric meter; by hierarchically managing the operation environment of the electric meter, it can effectively identify the quality of the operation environment in which the electric meter is located, which can help managers to carry out targeted maintenance and management of the electric meter and take timely measures to deal with possible risks; through the above steps, the operation status of the electric meter can not only be monitored and evaluated in real time, but also can be subjected to detailed quantitative analysis and trend prediction, thereby effectively improving the operation efficiency, safety and reliability of the electric meter, and helping to ensure the accuracy of power metering, reduce power loss, and ensure the stable operation of the power grid; The present invention comprehensively evaluates the information of maintenance personnel and reasonably allocates maintenance, ensuring that experienced and capable maintenance personnel give priority to handling emergency and high-priority faults, thereby improving the efficiency and accuracy of fault handling; by dynamically updating the number of maintenance to be maintained, the workload of maintenance personnel can be reasonably allocated, avoiding the situation where some personnel are too busy while other personnel are under-tasked, and improving the work efficiency of the entire maintenance team; based on the sorting and allocation mechanism of fault severity, the maintenance information is directly sent to the terminal of the maintenance personnel so that the meter fault can be responded to quickly, shortening the response time, improving the timeliness and accuracy of maintenance work, reducing power loss and user inconvenience, and also improving the work experience of maintenance personnel, and improving the reliability of the power system and user satisfaction; The present invention ensures that the maintenance personnel arrive at the correct meter location by matching the maintenance personnel end with the number of the meter to be maintained, thereby reducing the possibility of misoperation and ensuring the accuracy of maintenance work; through maintenance point incentives and data analysis, the maintenance personnel's work performance is evaluated, the maintenance process is optimized, and a more reasonable maintenance plan is formulated, thereby improving the efficiency and quality of maintenance work, and enhancing the operating stability of power equipment and the overall management level of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic flow chart of the method of the present invention; Figure 2 It is a schematic diagram of system module connection of the present invention. DETAILED DESCRIPTION

[0013] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0014] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0015] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0016] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] According to an embodiment of the present invention, Figure 1-2 As shown, a fault identification method for an electric meter is provided, which is implemented based on a fault identification system for an electric meter, the system comprising: a data acquisition module, a server, a fault analysis module, a maintenance management module and a fault processing module; the method specifically comprises the following steps: S1: The data acquisition module collects the operation information of the electric meter through the built-in sensor of the electric meter, and the data acquisition module sends the collected electric meter information to the server for storage; the data acquisition module includes a voltage sensor, a current transformer, a wireless communication transmitter and receiver, a temperature sensor and a humidity sensor for collecting the operation information of the electric meter; the operation information of the electric meter includes the current value, voltage value, signal strength value, temperature value and humidity value of the electric meter; S2: The fault analysis module analyzes the meter operation information to obtain the meter operation evaluation value and sends it to the server for storage; the specific steps are as follows: Retrieve the current value, voltage value, signal strength value, temperature value and humidity value of the electric meter at different collection times, and record them as Lij, Yij, Qij, Wij and Dij respectively; where i=1, 2, 3…I, where i=1, 2, 3…I, I is a positive integer, I represents the total number of electric meter devices, and i represents the serial number of any one of them; where j=1, 2, 3…J, J is a positive integer, J represents the total number of collection times, and i represents the serial number of any one of them; obtain the rated current and rated voltage of each electric meter, and set each electric meter to correspond to a standard operating temperature, standard operating humidity and standard signal strength, and record them as LZ, YZ, WZ, DZ and QZ respectively; it should be noted that the rated voltage refers to the value of the electric meter under normal working conditions. The standard voltage value designed and operated under normal conditions is the working voltage based on which the meter is designed. When the meter voltage is within this range, the meter can accurately measure electric energy; the rated current refers to the maximum current value that the meter can safely pass under normal working conditions. It is the standard current range designed for meter measurement. Within this range, the meter can accurately measure current and related energy consumption; when the communication signal of the meter is lost or severely weakened, the meter will not be able to transmit data to the server or control center in a timely manner, thereby affecting the monitoring and management of the power system. Therefore, a standard signal strength value is set; the standard operating temperature, standard operating humidity and standard signal strength refer to the optimal environmental conditions for the meter to operate safely under normal working conditions, thereby improving the working efficiency and operating safety of the meter; substitute the above values ​​into the set formula The operating status value Hij is calculated, where a1, a2, a3, a4 and a5 are the set weight factors respectively. It can be seen from the formula that when the current value, voltage value, signal strength value, temperature value and humidity value are closer to the rated current, rated voltage, standard operating temperature, standard operating humidity and standard signal strength, the operating status value is larger; when the meter current value is closer to the rated current value ( The closer it is to zero), the greater the operating status value; when the meter voltage value is closer to the rated voltage value ( The closer it is to zero), the greater the operating status value; when the meter signal strength value is closer to the standard signal strength value ( The closer it is to zero), the greater the operating status value; when the meter signal temperature value is closer to the standard temperature value ( The closer it is to zero), the greater the operating status value; when the meter signal humidity value is closer to the standard humidity value ( The closer it is to zero), the larger the operating status value is; it should be noted that the larger the operating status value is, the more the current value, voltage value, signal strength value, temperature value and humidity value are in line with the optimal working environment set by the meter; Set an operation status threshold interval, compare and analyze the operation status value with the set operation status threshold interval, when the operation status value is greater than the maximum value in the set threshold interval, it means that the operation status of the meter is better at this time, and the third-level operation environment is accumulated once; when the operation status value is within the set operation status threshold interval, the second-level operation environment is accumulated once; when the operation status value is less than the minimum value of the set operation status threshold interval, the operation environment is accumulated once; the cumulative number of the third-level operation environment, the second-level operation environment and the first-level operation environment are counted respectively, and they are recorded as P3, P2 and P1 respectively; the operation status values ​​corresponding to the third-level operation environment, the second-level operation environment and the first-level operation environment are summed up to obtain the third-level environment value, the second-level environment value and the first-level environment value, and they are recorded as P6, P5 and P4 respectively; substitute the values ​​of the third-level operation environment cumulative number P3, the second-level operation environment cumulative number P2, the first-level operation environment cumulative number P1, the third-level environment value P6, the second-level environment value P5 and the first-level environment value P4 into the set formula Calculate and obtain the operation evaluation value K, where b1, b2 and b3 are respectively the set weight factors, and b3>b2>b1>0; An operation evaluation threshold interval is set, and the operation evaluation value is compared and analyzed with the operation evaluation threshold interval. When the operation evaluation value of the electric meter is greater than the maximum value of the set operation evaluation threshold interval, it indicates that the operation environment of the electric meter is relatively stable, and the electric meter is marked as a normal electric meter; when the operation evaluation value of the electric meter is within the set operation evaluation threshold interval, the electric meter is marked as a priority maintenance electric meter; when the operation evaluation value of the electric meter is less than the minimum value of the set operation evaluation threshold interval, the electric meter is marked as an emergency maintenance electric meter; and the priority maintenance electric meter and the emergency maintenance electric meter are marked as the electric meter to be maintained, thereby obtaining the operation evaluation value of each electric meter to be maintained and sending it to the server for storage; By collecting the meter operation information in real time and comparing it with the preset rated value and standard operating conditions, the operation status of the meter can be accurately monitored, which helps to detect potential abnormalities or faults early and prevent the meter from running for a long time under abnormal conditions, thereby ensuring the measurement accuracy and equipment safety; by calculating the operation status value and the operation stability value, it can objectively reflect whether the operation environment of the meter is stable and the degree of compliance of various parameters with the design standards, which can provide specific data support for power management personnel and enable a more intuitive understanding of the operation status of the meter; hierarchical management of the meter operation environment can effectively identify the quality of the meter's operating environment, which can help managers to carry out targeted maintenance and management of the meter and take timely measures to deal with possible risks; through the above steps, the operation status of the meter can not only be monitored and evaluated in real time, but also detailed quantitative analysis and trend prediction can be carried out, thereby effectively improving the operation efficiency, safety and reliability of the meter, and helping to ensure the accuracy of power metering, reduce power loss, and ensure the stable operation of the power grid.

[0018] S3: The maintenance management module obtains the electricity meter to be maintained through the server and assigns it to the corresponding maintenance personnel; the specific maintenance assignment steps of the maintenance management module are as follows: Step 1: Record the maintenance personnel terminal (the terminal to be maintained includes but is not limited to a smartphone or smart watch, etc.) as Rn, where n=1, 2, 3...N, N is a positive integer, N represents the total number of maintenance personnel terminals, and n represents the sequence number of any maintenance personnel terminal; obtain the personnel information of the maintenance personnel stored in the server, where the personnel information includes name, contact information, employment time, total maintenance times, total maintenance points, and number of terminals to be maintained; Step 2: According to the maintenance personnel's entry time and the current system time, the maintenance personnel's entry time is obtained and marked as TRn; the total number of maintenance performed by the maintenance personnel is obtained and recorded as MRn; the total maintenance points of the maintenance personnel are obtained and recorded as FRn; the total number of maintenance to be performed by the maintenance personnel is obtained and recorded as VRn; Step 3: Substitute the values ​​of the maintenance personnel's employment time TRn, total maintenance times MRn, total maintenance points FRn, and total number of maintenance items VRn into the set formula The maintenance priority value URn of the maintenance personnel is calculated; wherein c1, c2, c3 and c4 are respectively the set weight factors; Step 4: Set a maintenance priority threshold and compare and analyze it with the maintenance priority value. When the maintenance priority value is greater than or equal to the set maintenance priority threshold, the maintenance personnel is classified into the first maintenance sequence for emergency maintenance of the electric meter troubleshooting; when the maintenance priority value is less than the set maintenance priority threshold, the maintenance personnel is classified into the second maintenance sequence for priority maintenance of the electric meter troubleshooting; Step 5: Count the first maintenance personnel sequence and the second maintenance personnel sequence; sort the emergency maintenance meters according to the operation evaluation value from small to large, allocate the emergency maintenance meter with the smallest (most serious) operation evaluation value, select the personnel in the first maintenance sequence with the largest maintenance priority value as the personnel to be maintained for the emergency maintenance meter, and at the same time, the number of personnel to be maintained for the personnel to be maintained increases by one, and the number of personnel to be maintained is updated to step 3; sort the priority maintenance meters according to the operation evaluation value from small to large, allocate the meter with the smallest operation evaluation value among the priority maintenance meters, select the personnel in the second maintenance sequence with the largest maintenance priority value as the personnel to be maintained for the priority maintenance meter, and at the same time, the number of personnel to be maintained for the personnel to be maintained increases by one, and the number of personnel to be maintained is updated to step 3; Step 6: Send maintenance information of the emergency maintenance meter and the priority maintenance meter to the terminals of the first maintenance sequence personnel and the second maintenance sequence personnel; the maintenance information includes the number information of the emergency maintenance meter and the priority maintenance meter (the location is confirmed according to the number), the meter operation data and the meter operation evaluation value; By comprehensively evaluating the maintenance personnel's information and reasonably allocating maintenance, it is ensured that experienced and capable maintenance personnel give priority to handling emergency and high-priority faults, thereby improving the efficiency and accuracy of fault handling; by dynamically updating the number of maintenance to be maintained, the workload of maintenance personnel can be reasonably distributed, avoiding the situation where some personnel are too busy while others are under-tasked, and improving the work efficiency of the entire maintenance team; based on the sorting and allocation mechanism of fault severity, maintenance information is sent directly to the maintenance personnel's terminal so that meter faults can be responded to quickly, shortening the response time, improving the timeliness and accuracy of maintenance work, reducing power losses and user inconvenience, and improving the work experience of maintenance personnel, thereby enhancing the reliability of the power system and user satisfaction.

[0019] S4: The fault handling module is where the maintenance personnel perform maintenance on the assigned meter to be maintained and upload the maintenance information of the meter after the maintenance is completed. The specific steps for maintaining the meter to be maintained are: Step 1: The maintenance personnel arrives at the assigned meter to be maintained, and identifies the meter number to be maintained through the maintenance personnel terminal for matching. When the maintenance personnel successfully matches the meter information to be maintained, a signal of successful matching is sent to the server. The server generates a maintenance signal and sends it to the maintenance personnel terminal and marks the current sending time as the maintenance start time. Step 2: After receiving the maintenance signal, the maintenance personnel starts to maintain the meter to be maintained; after the maintenance is completed, the maintenance personnel sends a completion signal to the server and marks the current time as the maintenance end time, where the time difference between the maintenance start time and the maintenance end time is the maintenance time of the maintenance personnel, which is recorded as XRn; at the same time, the number of meters to be maintained is reduced by one, the number of maintenance times of the maintenance personnel to be maintained is increased by one, and the maintenance information of the maintenance personnel is sent to the server for storage; Step 3: Use the formula The maintenance integral value FRn1 of the maintenance personnel is calculated; Indicates the preset weight factor of the meter to be maintained, =1 or 2, 1 indicates the preset weight factor for the priority maintenance of the meter. 2 represents the preset weight factor for emergency maintenance meters, and 1< 2. Send the maintenance score of the maintenance personnel to the server for storage, and sum it with the previous maintenance total score to obtain the current maintenance total score FRn, and update the personnel information of the maintenance personnel; and send the maintenance information of the maintenance personnel to the server for storage; By matching the maintenance personnel end with the number of the meter to be maintained, it is ensured that the maintenance personnel arrive at the correct meter location, reducing the possibility of misoperation and ensuring the accuracy of the maintenance work; through maintenance point incentives and data analysis, the maintenance personnel's work performance is evaluated, the maintenance process is optimized, and a more reasonable maintenance plan is formulated, which improves the efficiency and quality of maintenance work, and improves the operating stability of power equipment and the overall management level of the power system. The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A fault identification method for an electric meter, characterized in that: The following steps are involved: S1: The operation information of the electric meter is collected through the built-in sensor of the electric meter, and the data collection module sends the collected electric meter information to the server for storage; S2: Analyze the meter operation information, obtain the meter operation evaluation value and send it to the server for storage; the specific steps are as follows: Retrieve the current value, voltage value, signal strength value, temperature value and humidity value of the electric meter at different collection times; obtain the rated current and rated voltage of each electric meter, and set each electric meter to correspond to a standard operating temperature, standard operating humidity and standard signal strength respectively; normalize the values ​​of the current value, voltage value, signal strength value, temperature value, humidity value, rated current value, rated voltage value, standard operating temperature value, standard operating humidity value and standard signal strength value to obtain the operating status value; Set a running status threshold interval, compare and analyze the running status value with the set running status threshold interval, when the running status value is greater than the maximum value in the set threshold interval, the third-level running environment is accumulated once; when the running status value is within the set running status threshold interval, the second-level running environment is accumulated once; when the running status value is less than the minimum value of the set running status threshold interval, the running environment is accumulated once; the accumulated times of the third-level running environment, the second-level running environment and the first-level running environment are counted respectively; The operation status values ​​corresponding to the third-level operation environment, the second-level operation environment and the first-level operation environment are respectively summed up to obtain the third-level environment value, the second-level environment value and the first-level environment value; the cumulative number of the third-level operation environment, the second-level operation environment and the first-level operation environment and the values ​​of the third-level environment value, the second-level environment value and the first-level environment value are normalized to obtain the operation evaluation value; S3: Obtain the electric meter to be maintained through the server and assign it to the corresponding maintenance personnel; S4: The maintenance personnel perform maintenance according to the assigned meters to be maintained, and upload the maintenance information of the meters after the maintenance is completed.

2. The fault identification method for an electric meter according to claim 1, characterized in that: The comparison method of running evaluation values ​​is: An operation evaluation threshold interval is set, and the operation evaluation value is compared and analyzed with the operation evaluation threshold interval. When the operation evaluation value of the electric meter is greater than the maximum value of the set operation evaluation threshold interval, the electric meter is marked as a normal electric meter; when the operation evaluation value of the electric meter is within the set operation evaluation value threshold interval, the electric meter is marked as a priority maintenance electric meter; when the operation evaluation value of the electric meter is less than the minimum value of the set operation evaluation threshold interval, the electric meter is marked as an emergency maintenance electric meter; and the priority maintenance electric meter and the emergency maintenance electric meter are marked as meters to be maintained, and each meter to be maintained and its operation evaluation value are sent to the server for storage.

3. The fault identification method for an electric meter according to claim 1, characterized in that: The specific maintenance allocation steps are as follows: Step 1: Obtain the personnel information of the maintenance personnel stored in the server, where the personnel information includes name, contact information, employment time, total number of maintenance times, total maintenance points, and number of items to be maintained; Step 2: According to the maintenance personnel's entry time and the current system time, obtain the maintenance personnel's entry time; obtain the total number of maintenance performed by the maintenance personnel; obtain the maintenance personnel's total maintenance points; obtain the total number of maintenance tasks to be performed by the maintenance personnel; Step 3: Normalize the values ​​of the maintenance personnel's employment time, total maintenance times, total maintenance points, and total number of items to be maintained to obtain the maintenance priority value of the maintenance personnel; Step 4: Set a maintenance priority threshold and compare and analyze it with the maintenance priority value. When the maintenance priority value is greater than or equal to the set maintenance priority threshold, the maintenance personnel is classified into the first maintenance sequence for emergency maintenance of the meter's fault maintenance; when the maintenance priority value is less than the set maintenance priority threshold, the maintenance personnel is classified into the second maintenance sequence for priority maintenance of the meter's fault maintenance.

4. The fault identification method for an electric meter according to claim 1, characterized in that: The specific steps for maintaining the meter are as follows: Step 1: The maintenance personnel arrives at the assigned meter to be maintained, and identifies the meter number to be maintained through the maintenance personnel terminal for matching. When the maintenance personnel successfully matches the meter information to be maintained, a signal of successful matching is sent to the server. The server generates a maintenance signal and sends it to the maintenance personnel terminal and marks the current sending time as the maintenance start time. Step 2: After receiving the maintenance signal, the maintenance personnel starts to maintain the meter to be maintained; after the maintenance is completed, the maintenance personnel sends a completion signal to the server and marks the current time as the maintenance end time, where the time difference between the maintenance start time and the maintenance end time is the maintenance time of the maintenance personnel; at the same time, the number of meters to be maintained is reduced by one, the number of maintenance times of the maintenance personnel to be maintained is increased by one, and the maintenance information of the maintenance personnel is sent to the server for storage; Step 3: Set different weights for priority maintenance meters and emergency maintenance meters. The weight of priority maintenance meters is smaller than that of emergency maintenance meters. Then, normalization is performed to obtain distribution points. The maintenance points value of the maintenance personnel is sent to the server storage, and is summed with the previous maintenance total points value to obtain the current maintenance total points, and the personnel information of the maintenance personnel is updated; and the maintenance information of the maintenance personnel is sent to the server storage.

5. The fault identification method for an electric meter according to claim 3, characterized in that: The allocation rules for the first maintenance personnel sequence and the second maintenance personnel sequence are: Count the first maintenance personnel sequence and the second maintenance personnel sequence; sort the emergency maintenance meters according to the operation evaluation value from small to large, allocate the emergency maintenance meter with the smallest operation evaluation value, select the personnel in the first maintenance sequence with the largest maintenance priority value as the personnel to be maintained for the emergency maintenance meter, and at the same time increase the number of personnel to be maintained by one, and update the number of personnel to be maintained to S3; sort the priority maintenance meters according to the operation evaluation value from small to large, allocate the meter with the smallest operation evaluation value among the priority maintenance meters, select the personnel in the second maintenance sequence with the largest maintenance priority value as the personnel to be maintained for the priority maintenance meter, and at the same time increase the number of personnel to be maintained by one, and update the number of personnel to be maintained to S3; Sending maintenance information of emergency maintenance meters and priority maintenance meters to terminals of first maintenance sequence personnel and second maintenance sequence personnel; The maintenance information includes the number information of emergency maintenance meters and priority maintenance meters, meter operation data and meter operation evaluation values.

6. The fault identification method for an electric meter according to claim 1, characterized in that: The data acquisition module includes a voltage sensor, a current transformer, a wireless communication transmitter and receiver, a temperature sensor and a humidity sensor for collecting the meter operation information; the meter operation information includes the meter's current value, voltage value, signal strength value, temperature value and humidity value.

7. A fault identification system for an electric meter, characterized in that A fault identification method for an electric meter as described in any one of claims 1 to 6, comprising: a data acquisition module, a server, a fault analysis module, a maintenance management module and a fault processing module; The data acquisition module collects the operation information of the electric meter through the built-in sensor of the electric meter, and the data acquisition module sends the collected electric meter information to the server for storage; the data acquisition module includes a voltage sensor, a current transformer, a wireless communication transmitter and receiver, a temperature sensor and a humidity sensor for collecting the operation information of the electric meter; the operation information of the electric meter includes the current value, voltage value, signal strength value, temperature value and humidity value of the electric meter; The fault analysis module analyzes the meter operation information to obtain the meter operation evaluation value and sends it to the server for storage; the specific steps are as follows: Retrieve the current value, voltage value, signal strength value, temperature value and humidity value of the electric meter at different collection times; obtain the rated current and rated voltage of each electric meter, and set each electric meter to correspond to a standard operating temperature, standard operating humidity and standard signal strength, and normalize them to obtain the operating status value; Set an operation status threshold interval, compare and analyze the operation status value with the set operation status threshold interval, when the operation status value is greater than the maximum value in the set threshold interval, the third-level operation environment is accumulated once; when the operation status value is within the set operation status threshold interval, the second-level operation environment is accumulated once; when the operation status value is less than the minimum value of the set operation status threshold interval, the operation environment is accumulated once; the cumulative number of the third-level operation environment, the second-level operation environment and the first-level operation environment are counted respectively; the operation status values ​​corresponding to the third-level operation environment, the second-level operation environment and the first-level operation environment are summed up to obtain the third-level environment value, the second-level environment value and the first-level environment value; the above values ​​are normalized to obtain the operation evaluation value; The maintenance management module obtains the electricity meters to be maintained through the server and assigns them to the corresponding maintenance personnel; The fault handling module is used by maintenance personnel to perform maintenance according to the assigned meters to be maintained, and upload the maintenance information of the meters after the maintenance is completed.

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