Method and apparatus for checking voltage data of a metrology device

Abstract

The application provides a method and device for checking voltage data of a metering device, comprising: obtaining metering data of the metering device within a preset time period; counting a quantity value of the obtained metering data, and judging whether the quantity value of the metering data is greater than or equal to a preset first quantity threshold value; if the quantity value is greater than or equal to the first quantity threshold value, judging whether there is metering data corresponding to a current value greater than zero; when there is metering data corresponding to a current value greater than zero, determining whether there is voltage data disorder according to voltage data in the metering data to obtain a corresponding checking result. The application identifies the authenticity of voltage data based on the combination of the voltage fluctuation amplitude, the maximum voltage allowed value of the power utilization equipment and the duration of the low voltage value, can effectively identify the authenticity of the low voltage data, and has high accuracy and low false positive rate.

Description

Technical Field

[0001] This invention relates to the field of power technology, and in particular to a method and apparatus for verifying voltage data of a metering device. Background Technology

[0002] As a metering device for electricity, the single-phase electricity meter is the basis for electricity transactions and billing between the power supply department and the electricity user. Its accurate measurement is the guarantee of the fairness and transparency of billing.

[0003] On the one hand, situations such as poor contact in the metering circuit of high-supply-low-meter or low-supply-low-meter meters, failure of key components such as voltage components and data processing units, and external interference such as electromagnetic interference can all lead to a situation where the actual voltage is not undervoltage, but the metered voltage is undervoltage. On the other hand, since there are dozens of manufacturers producing single-phase meters and concentrators, the established specifications cannot cover all aspects, which can also easily lead to situations where the actual voltage is not undervoltage, but the metered voltage is undervoltage. The above-mentioned abnormal situation of the actual voltage not being undervoltage, but the metered voltage being undervoltage, is a serious economic loss for the power sector, and it is easy to waste manpower and resources to go to the site for verification. Therefore, it is very important and urgent to accurately identify the authenticity of the low voltage data.

[0004] Among them, the abnormal situation of undervoltage metering can be divided into two situations. One is that the voltage has always been at a certain value since the installation, for example, 48V, and the voltage value has never changed. The other is that the voltage can be as low as 1V or as high as 1000V or even higher.

[0005] Currently, domestic and international research on the authenticity of voltage data from low-power and low-meter electricity meters mainly focuses on metering anomaly analysis and anti-theft technologies. Research on methods for identifying the authenticity of voltage data from low-power and low-meter electricity meters is relatively limited. Existing technologies largely rely on empirical judgment or simple threshold settings, lacking systematic analysis and efficient algorithm design. Summary of the Invention

[0006] The purpose of this invention is to provide a method and apparatus for verifying voltage data of a metering device, thereby solving the technical problem of how to verify the authenticity of low voltage data.

[0007] On the one hand, a method for verifying voltage data of a metering device is provided, including:

[0008] Acquire meter data from the metering device within a preset time period;

[0009] The system counts the number of meter data points and determines whether the number of meter data points is greater than or equal to a preset first quantity threshold. If the number of meter data points is greater than or equal to the first quantity threshold, it determines whether there are meter data points with corresponding current values ​​greater than zero.

[0010] When there is a meter reading with a current value greater than zero, the voltage data in the meter reading is used to determine whether there is voltage data disorder, and the corresponding verification result is obtained.

[0011] Preferably, the method further includes, when acquiring meter data, extracting at least one set of meter data within a daily time period, wherein each set of meter data includes at least one current value, one voltage value, and one daily electricity consumption value.

[0012] Preferably, determining whether there is voltage data disorder based on the voltage data in the meter data specifically includes, if there is voltage data in the meter data that is greater than a preset voltage threshold, then counting the number of voltage data that are greater than the preset voltage threshold.

[0013] Preferably, determining whether there is voltage data disorder based on the voltage data in the meter data further includes judging whether the number of voltage data exceeding a preset voltage threshold is greater than or equal to a preset second quantity threshold. If the number of voltage data exceeding the preset voltage threshold is greater than or equal to the second quantity threshold, then the meter voltage data is judged to be disordered, and it is a low voltage abnormality caused by large fluctuations.

[0014] Preferably, determining whether there is voltage data disorder based on the voltage data in the meter data further includes, if the number of voltage data greater than a preset voltage threshold is less than a second quantity threshold, then determining whether the difference between the maximum voltage value and the minimum voltage value is less than a preset difference threshold.

[0015] Preferably, determining whether there is voltage data disorder based on the voltage data in the meter data further includes determining that if the difference between the maximum voltage value and the minimum voltage value is less than a preset difference threshold, the meter voltage data is disordered and is a low-voltage abnormality caused by small fluctuations.

[0016] On the other hand, an apparatus for verifying voltage data of a metering device is also provided, which implements the method for verifying voltage data of a metering device, including,

[0017] The data acquisition module is used to acquire meter data from the metering device within a preset time period;

[0018] The data processing module is used to count the number of meter data obtained and determine whether the number of meter data is greater than or equal to a preset first quantity threshold. If it is greater than or equal to the first quantity threshold, it determines whether there is a corresponding meter data with a current value greater than zero.

[0019] When there is a meter reading with a current value greater than zero, the voltage data in the meter reading is used to determine whether there is voltage data disorder, and the corresponding verification result is obtained.

[0020] Preferably, the data acquisition module is further configured to extract at least one set of meter data within a daily time period when acquiring meter data, wherein each set of meter data includes at least one current value, one voltage value, and one daily electricity consumption value.

[0021] Preferably, the data processing module is further configured to, if there are voltage data in the meter data that are greater than a preset voltage threshold, count the number of voltage data that are greater than the preset voltage threshold.

[0022] Determine whether the number of voltage data exceeding a preset voltage threshold is greater than or equal to a preset second quantity threshold. If the number of voltage data exceeding the preset voltage threshold is greater than or equal to the second quantity threshold, then determine that the meter voltage data is disordered and is a low-voltage abnormality caused by large fluctuations.

[0023] Preferably, the data processing module is further configured to determine whether the difference between the maximum voltage value and the minimum voltage value is less than a preset difference threshold if the number of voltage data values ​​greater than a preset voltage threshold is less than a second quantity threshold.

[0024] If the difference between the maximum and minimum voltage values ​​is less than a preset difference threshold, the meter voltage data is determined to be disordered, and the low voltage abnormality is caused by small fluctuations.

[0025] In summary, implementing the embodiments of the present invention has the following beneficial effects:

[0026] The method and apparatus for verifying voltage data of metering devices provided by the present invention identify the authenticity of voltage data by combining the voltage fluctuation amplitude with the maximum allowable voltage value of the electrical equipment and the duration of low voltage value; it can effectively identify the authenticity of low voltage data and has a high accuracy rate and a low false alarm rate. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0028] Figure 1 This is a schematic diagram of the main flow of a method for verifying voltage data of a metering device according to an embodiment of the present invention.

[0029] Figure 2 This is a logical schematic diagram of a method for verifying voltage data of a metering device according to an embodiment of the present invention.

[0030] Figure 3This is a schematic diagram of a device for verifying voltage data of a metering device according to an embodiment of the present invention. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] like Figure 1 and Figure 2 The diagram shown is a schematic representation of an embodiment of a method for verifying voltage data of a metering device provided by the present invention. This embodiment includes:

[0033] Step S1: Obtain meter data from the metering device within a preset time period; understandably, obtain meter data from the past few days. "Past few days" can refer to the past 7 days, the past 3 days, or the past 10 days, and can be flexibly set.

[0034] In one embodiment, when acquiring meter data, at least one set of meter data is extracted within a daily time period, wherein each set of meter data includes at least one current value, one voltage value, and one daily electricity consumption value.

[0035] Step S2: Count the number of acquired meter data points and determine if the number of meter data points is greater than or equal to a preset first quantity threshold. If it is greater than or equal to the first quantity threshold, determine if there are any meter data points with a corresponding current value greater than zero. In essence, this involves counting the number of acquired meter data points and determining if the number of meter data points is greater than or equal to the first quantity threshold; and determining if there are any meter data points with a corresponding current value greater than 0 among the acquired meter data points. The first quantity threshold is at least 5.

[0036] Step S3: When there are meter data with corresponding current values ​​greater than zero, determine whether there is voltage data disorder based on the voltage data in the meter data, and obtain the corresponding verification result. In essence, determine whether the number of meter data with corresponding voltage values ​​greater than a preset voltage threshold is greater than or equal to a second quantity threshold. If it is greater than or equal to the second quantity threshold, then the meter voltage data is determined to be disordered.

[0037] In one embodiment, determining whether voltage data disorder exists based on the voltage data in the meter readings specifically includes: if there are voltage data points in the meter readings that are greater than a preset voltage threshold, then counting the number of voltage data points greater than the preset voltage threshold; determining whether the number of voltage data points greater than the preset voltage threshold is greater than or equal to a preset second quantity threshold; if the number of voltage data points greater than the preset voltage threshold is greater than or equal to the second quantity threshold, then determining that the meter voltage data is disordered, and that it is a low-voltage anomaly caused by large fluctuations. The preset voltage threshold can be 430V. The second quantity threshold is at least 1.

[0038] In one embodiment, determining whether voltage data disorder exists based on the voltage data in the meter data further includes: if the number of voltage data exceeding a preset voltage threshold is less than a second quantity threshold, then determining whether the difference between the maximum and minimum voltage values ​​is less than a preset difference threshold; if the difference between the maximum and minimum voltage values ​​is less than the preset difference threshold, then determining that the meter voltage data is disordered, and that it is a low-voltage anomaly caused by small fluctuations. The preset difference threshold is at most 1.

[0039] In a specific implementation, each meter has a corresponding CT, multiplier, meter number, metering point number, current and voltage data of the meter within a set time period in the data acquisition system, user name, and electricity address; by using the user name and electricity address, on-site verification and maintenance can be carried out for meters with disordered voltage data.

[0040] Embodiments of the present invention, such as Figure 3 As shown, an apparatus for verifying voltage data of a metering device is also provided, and the method for verifying voltage data of a metering device includes,

[0041] The data acquisition module is used to acquire meter data from the metering device within a preset time period;

[0042] The data processing module is used to count the number of meter data obtained and determine whether the number of meter data is greater than or equal to a preset first quantity threshold. If it is greater than or equal to the first quantity threshold, it determines whether there is a corresponding meter data with a current value greater than zero.

[0043] When there is a meter reading with a current value greater than zero, the voltage data in the meter reading is used to determine whether there is voltage data disorder, and the corresponding verification result is obtained.

[0044] In this embodiment, the data acquisition module is further configured to extract at least one set of meter data within a daily time period when acquiring meter data, wherein each set of meter data includes at least one current value, one voltage value, and one daily electricity consumption value.

[0045] In this embodiment, the data processing module is further configured to: if there are voltage data in the meter data that are greater than a preset voltage threshold, count the number of voltage data that are greater than the preset voltage threshold; determine whether the number of voltage data that are greater than the preset voltage threshold is greater than or equal to a preset second quantity threshold; if the number of voltage data that are greater than the preset voltage threshold is greater than or equal to the second quantity threshold, determine that the meter voltage data is disordered and is a low voltage abnormality caused by large fluctuations.

[0046] In this embodiment, the data processing module is further configured to determine whether the difference between the maximum voltage value and the minimum voltage value is less than a preset difference threshold if the number of voltage data values ​​greater than a preset voltage threshold is less than a second quantity threshold; if the difference between the maximum voltage value and the minimum voltage value is less than the preset difference threshold, it is determined that the meter voltage data is disordered and is a low-voltage abnormality caused by small fluctuations.

[0047] It should be noted that the apparatus described in the above embodiments corresponds to the method described in the above embodiments. Therefore, the parts of the apparatus described in the above embodiments that are not described in detail can be obtained by referring to the content of the method described in the above embodiments, and will not be repeated here.

[0048] In summary, implementing the embodiments of the present invention has the following beneficial effects:

[0049] The method and apparatus for verifying voltage data of metering devices provided by the present invention identify the authenticity of voltage data by combining the voltage fluctuation amplitude with the maximum allowable voltage value of the electrical equipment and the duration of low voltage value; it can effectively identify the authenticity of low voltage data and has a high accuracy rate and a low false alarm rate.

[0050] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A method for verifying voltage data of a metering device, characterized in that, include: Acquire meter data from the metering device within a preset time period; The system counts the number of meter data points and determines whether the number of meter data points is greater than or equal to a preset first quantity threshold. If the number of meter data points is greater than or equal to the first quantity threshold, it determines whether there are meter data points with corresponding current values ​​greater than zero. When there is a meter reading with a current value greater than zero, the voltage data in the meter reading is used to determine whether there is voltage data disorder, and the corresponding verification result is obtained.

2. The method as described in claim 1, characterized in that, It also includes that, when acquiring meter data, at least one set of meter data should be extracted within the daily time period, wherein each set of meter data includes at least one current value, one voltage value, and one daily electricity consumption value.

3. The method as described in claim 2, characterized in that, The step of determining whether there is voltage data disorder based on the voltage data in the meter data specifically includes: if there is voltage data in the meter data that is greater than a preset voltage threshold, then counting the number of voltage data that are greater than the preset voltage threshold.

4. The method as described in claim 3, characterized in that, The step of determining whether there is voltage data disorder based on the voltage data in the meter data also includes determining whether the number of voltage data exceeding a preset voltage threshold is greater than or equal to a preset second quantity threshold. If the number of voltage data exceeding the preset voltage threshold is greater than or equal to the second quantity threshold, then the meter voltage data is determined to be disordered, and it is a low voltage abnormality caused by large fluctuations.

5. The method as described in claim 4, characterized in that, The method of determining whether there is voltage data disorder based on the voltage data in the meter data also includes determining whether the difference between the maximum voltage value and the minimum voltage value is less than a preset difference threshold if the number of voltage data values ​​greater than a preset voltage threshold is less than a second quantity threshold.

6. The method as described in claim 5, characterized in that, The method of determining whether there is voltage data disorder based on the voltage data in the meter data also includes determining that if the difference between the maximum voltage value and the minimum voltage value is less than a preset difference threshold, the meter voltage data is disordered and is a low voltage abnormality caused by small fluctuations.

7. An apparatus for verifying voltage data of a metering device, for implementing the method as described in any one of claims 1-6, characterized in that, include, The data acquisition module is used to acquire meter data from the metering device within a preset time period; The data processing module is used to count the number of meter data obtained and determine whether the number of meter data is greater than or equal to a preset first quantity threshold. If it is greater than or equal to the first quantity threshold, it determines whether there is a corresponding meter data with a current value greater than zero. When there is a meter reading with a current value greater than zero, the voltage data in the meter reading is used to determine whether there is voltage data disorder, and the corresponding verification result is obtained.

8. The apparatus as claimed in claim 7, characterized in that, The data acquisition module is also used to extract at least one set of meter data within a daily time period when acquiring meter data, wherein each set of meter data includes at least one current value, one voltage value and one daily electricity consumption value.

9. The apparatus as claimed in claim 8, characterized in that, The data processing module is also used to count the number of voltage data that are greater than the preset voltage threshold if there are voltage data in the meter data. Determine whether the number of voltage data exceeding a preset voltage threshold is greater than or equal to a preset second quantity threshold. If the number of voltage data exceeding the preset voltage threshold is greater than or equal to the second quantity threshold, then determine that the meter voltage data is disordered and is a low-voltage abnormality caused by large fluctuations.

10. The apparatus as claimed in claim 9, characterized in that, The data processing module is further configured to determine whether the difference between the maximum voltage value and the minimum voltage value is less than a preset difference threshold if the number of voltage data values ​​greater than a preset voltage threshold is less than a second quantity threshold. If the difference between the maximum and minimum voltage values ​​is less than a preset difference threshold, the meter voltage data is determined to be disordered, and the low voltage abnormality is caused by small fluctuations.

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