Method and device for verifying voltage data of metering device

Abstract

The invention provides a method and device for verifying voltage data of a metering device, and the method comprises the steps: obtaining meter data of the metering device in a preset time period; counting the quantity value of the obtained meter data, judging whether the quantity value of the meter data is greater than or equal to a preset first quantity threshold value, and if the quantity value of the meter data is greater than or equal to the first quantity threshold value, judging whether the meter data of which the corresponding current value is greater than zero exists; when the corresponding meter data with the current value larger than zero exist, whether voltage data disorder exists or not is determined according to voltage data in the meter data, and a corresponding verification result is obtained. According to the invention, the authenticity of the voltage data is identified based on the combination of the voltage fluctuation amplitude and the duration of the maximum voltage allowable value and the low voltage value of the electric equipment; the method can effectively identify the authenticity of the low voltage data, and has a high accuracy rate and a low false alarm rate.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and in particular to a method and a device for verifying voltage data of a metering device. Background Art

[0002] As a metering device for electric energy, single-phase electricity meters are the basis for electricity transactions and billing between power supply departments and electricity users. Their accurate measurement is the guarantee of fairness and transparency in billing.

[0003] On the one hand, when the metering circuit of high supply and low meter or low supply and low meter has poor contact, key components such as voltage components and data processing units fail, and external interference such as electromagnetic interference occurs, the actual voltage is not under-voltage, but the measured voltage is under-voltage; on the other hand, since there are dozens of manufacturers producing single-phase meters and concentrators, the formulated regulations cannot cover all the contents, and it is easy for the actual voltage to be under-voltage, but the measured voltage is under-voltage; the above-mentioned abnormal situation that the actual voltage is not under-voltage, but the measured voltage is under-voltage is a serious economic loss for the power department, and it is easy to waste manpower and material resources to go to the site for verification. Therefore, it is very important and urgent to truly and accurately identify the authenticity of the low voltage data.

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

[0005] At present, the research on the authenticity of voltage data of low-supply and low-metering electric energy meters at home and abroad mainly focuses on measurement anomaly analysis and anti-electricity theft technology. There are relatively few studies on the identification method of the authenticity of voltage data of low-supply and low-metering electric energy meters. The existing technology mostly relies on experience judgment or simple threshold setting, lacking systematic analysis and efficient algorithm design. Summary of the invention

[0006] The purpose of the present invention is to provide a method and device for verifying voltage data of a metering device, so as to solve the technical problem of how to verify the authenticity of low voltage data.

[0007] In one aspect, a method for verifying voltage data of a metering device is provided, comprising:

[0008] Obtain meter data of a metering device within a preset time period;

[0009] Counting the quantity values ​​of the acquired meter data, and determining whether the quantity values ​​of the meter data are greater than or equal to a preset first quantity threshold, and if greater than or equal to the first quantity threshold, determining whether there is corresponding meter data with a current value greater than zero;

[0010] When there is meter data with a corresponding current value greater than zero, it is determined whether there is voltage data disorder according to the voltage data in the meter data to obtain a corresponding verification result.

[0011] Preferably, it also includes, when acquiring meter data, extracting at least one group of meter data within a daily time period, wherein each group of meter data includes at least one current value, one voltage value and one daily electricity 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 greater than a preset voltage threshold in the meter data, counting the number of voltage data greater than the preset voltage threshold.

[0013] Preferably, determining whether there is voltage data disorder based on the voltage data in the meter data also includes judging whether the number of voltage data greater than a preset voltage threshold is greater than or equal to a preset second number threshold; if the number of voltage data greater than the preset voltage threshold is greater than or equal to the second number threshold, it is determined that the meter voltage data is disordered and 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 also includes, if the number of voltage data greater than a preset voltage threshold is less than a second number threshold, determining whether the difference between the maximum voltage and the minimum voltage 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 also includes, if the difference between the maximum voltage and the minimum voltage is less than a preset difference threshold, determining that the meter voltage data is disordered and is a low voltage abnormality caused by small fluctuations.

[0016] On the other hand, a device for verifying voltage data of a metering device is also provided, which is used to implement the method for verifying voltage data of a metering device, comprising:

[0017] A data acquisition module, used to acquire meter data of a metering device within a preset time period;

[0018] A data processing module, used to count the quantity values ​​of the acquired meter data, and determine whether the quantity values ​​of the meter data are greater than or equal to a preset first quantity threshold value, and if greater than or equal to the first quantity threshold value, determine whether there is corresponding meter data with a current value greater than zero;

[0019] When there is meter data with a corresponding current value greater than zero, it is determined whether there is voltage data disorder according to the voltage data in the meter data to obtain a corresponding verification result.

[0020] Preferably, the data acquisition module is further 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 value.

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

[0022] Determine whether the number of voltage data greater than the preset voltage threshold is greater than or equal to a preset second number threshold. If the number of voltage data greater than the preset voltage threshold is greater than or equal to the second number threshold, it is determined 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 value if the number of voltage data greater than the preset voltage threshold value is less than a second number threshold value;

[0024] If the difference between the maximum voltage and the minimum voltage 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.

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

[0026] The method and device for verifying the voltage data of a metering device provided by the present invention identify the authenticity of voltage data based on a combination of the voltage fluctuation amplitude, the maximum allowable voltage value of the electrical equipment, and the duration of the low voltage value; and can effectively identify the authenticity of low voltage data with a high accuracy rate and a low false alarm rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0028] Figure 1 The main flow diagram of a method for verifying voltage data of a metering device in an embodiment of the present invention is shown in FIG.

[0029] Figure 2 The figure is a logic diagram of a method for verifying voltage data of a metering device in an embodiment of the present invention.

[0030] Figure 3Schematic diagram of a device for verifying voltage data of a metering device in an embodiment of the present invention. DETAILED DESCRIPTION

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

[0032] like Figure 1 and Figure 2 FIG. 1 is a schematic diagram of an embodiment of a method for verifying voltage data of a metering device provided by the present invention. In this embodiment, the method includes:

[0033] Step S1, obtaining meter data of the metering device within a preset time period; understandably, obtaining meter data of the meter within recent days. Here, recent days can refer to the past 7 days, or the past 3 days, or the past 10 days, which can be set flexibly.

[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 value.

[0035] Step S2, counting the number of meter data obtained, and judging whether the number of meter data is greater than or equal to a preset first number threshold, if it is greater than or equal to the first number threshold, judging whether there is corresponding meter data with a current value greater than zero; understandably, counting the number of meter data obtained, and judging whether the number of meter data is greater than or equal to the first number threshold; judging whether there is corresponding meter data with a current greater than 0 in the obtained meter data. The first number threshold is at least 5;

[0036] Step S3, when there is meter data with a corresponding current value greater than zero, determine whether there is voltage data disorder according to the voltage data in the meter data, and obtain the corresponding verification result. It can be understood that it is determined whether the number of meter data with a corresponding voltage greater than a preset voltage threshold in the acquired meter data is greater than or equal to a second number threshold, and if it is greater than or equal to the second number threshold, it is determined that the meter voltage data is disordered.

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

[0038] In one embodiment, the 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 number threshold, determining whether the difference between the maximum voltage and the minimum voltage is less than a preset difference threshold; if the difference between the maximum voltage and the minimum voltage is less than the preset difference threshold, determining that the meter voltage data is disordered and is a low voltage abnormality caused by small fluctuations. The preset difference threshold is at most 1.

[0039] In a specific implementation example, each meter has a corresponding CT, multiplier, meter bureau code, metering point number, current, voltage, user name, and electricity address of the meter in the collection system within a set time period; through the user name and electricity address, on-site verification and maintenance can be performed on meters with disordered voltage data.

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

[0041] A data acquisition module, used to acquire meter data of a metering device within a preset time period;

[0042] A data processing module, used to count the quantity values ​​of the acquired meter data, and determine whether the quantity values ​​of the meter data are greater than or equal to a preset first quantity threshold value, and if greater than or equal to the first quantity threshold value, determine whether there is corresponding meter data with a current value greater than zero;

[0043] When there is meter data with a corresponding current value greater than zero, it is determined whether there is voltage data disorder according to the voltage data in the meter data to obtain a corresponding verification result.

[0044] In an embodiment, the data acquisition module is further 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 value.

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

[0046] In an embodiment, the data processing module is also used to determine whether the difference between the maximum voltage and the minimum voltage is less than a preset difference threshold if the number of voltage data greater than a preset voltage threshold is less than a second number threshold; if the difference between the maximum voltage and the minimum voltage 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 device described in the above embodiment corresponds to the method described in the above embodiment. Therefore, the part of the device described in the above embodiment that is not described in detail can be obtained by referring to the content of the method described in the above embodiment, and will not be repeated here.

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

[0049] The method and device for verifying the voltage data of a metering device provided by the present invention identify the authenticity of voltage data based on a combination of the voltage fluctuation amplitude, the maximum allowable voltage value of the electrical equipment, and the duration of the low voltage value; and can effectively identify the authenticity of low voltage data with a high accuracy rate and a low false alarm rate.

[0050] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to 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 measuring device, characterized in that: include: Obtain meter data of a metering device within a preset time period; Counting the quantity values ​​of the acquired meter data, and determining whether the quantity values ​​of the meter data are greater than or equal to a preset first quantity threshold, and if greater than or equal to the first quantity threshold, determining whether there is corresponding meter data with a current value greater than zero; When there is meter data with a corresponding current value greater than zero, it is determined whether there is voltage data disorder according to the voltage data in the meter data to obtain a corresponding verification result.

2. The method according to claim 1, characterized in that It also 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 value.

3. The method according to claim 2, characterized in that Determining whether there is voltage data disorder according to the voltage data in the meter data specifically includes, if there is voltage data greater than a preset voltage threshold in the meter data, counting the number of voltage data greater than the preset voltage threshold.

4. The method according to claim 3, characterized in that The determining whether there is voltage data disorder based on the voltage data in the meter data also includes judging whether the number of voltage data greater than a preset voltage threshold is greater than or equal to a preset second number threshold; if the number of voltage data greater than the preset voltage threshold is greater than or equal to the second number threshold, it is determined that the meter voltage data is disordered and is a low voltage abnormality caused by large fluctuations.

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

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

7. A device for verifying voltage data of a metering device, used to implement the method according to any one of claims 1 to 6, characterized in that: include, A data acquisition module, used to acquire meter data of a metering device within a preset time period; A data processing module, used to count the quantity values ​​of the acquired meter data, and determine whether the quantity values ​​of the meter data are greater than or equal to a preset first quantity threshold value, and if greater than or equal to the first quantity threshold value, determine whether there is corresponding meter data with a current value greater than zero; When there is meter data with a corresponding current value greater than zero, it is determined whether there is voltage data disorder according to the voltage data in the meter data to obtain a corresponding verification result.

8. The device according to 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 value.

9. The device according to claim 8, characterized in that The data processing module is further configured to count the number of voltage data greater than a preset voltage threshold value if there is voltage data greater than a preset voltage threshold value in the meter data; Determine whether the number of voltage data greater than the preset voltage threshold is greater than or equal to a preset second number threshold. If the number of voltage data greater than the preset voltage threshold is greater than or equal to the second number threshold, it is determined that the meter voltage data is disordered and is a low voltage abnormality caused by large fluctuations.

10. The device according to claim 9, characterized in that The data processing module is further configured to determine whether a difference between a maximum voltage value and a minimum voltage value is less than a preset difference threshold value if the number of voltage data greater than a preset voltage threshold value is less than a second number threshold value; If the difference between the maximum voltage and the minimum voltage 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.

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