Method and system for checking voltage data of single-phase meter

Abstract

The invention provides a method and system for checking voltage data of a single-phase meter, and the method comprises the steps: obtaining the meter data of the single-phase meter in a preset time period, and carrying out the statistics of the data size; comparing the data volume of the meter data with a preset first quantity threshold value, and determining a first target day according to a comparison result; determining the number of the first target days, comparing the number of the first target days with a preset second number threshold value, and determining a second target day according to a comparison result; determining the number of second target days, comparing the number of the second target days with a preset third number threshold, and determining a third target day according to a comparison result; and counting the number of the third target days, and if the number of the third target days is smaller than a preset fourth number threshold value, determining that the meter voltage is not zero actually. According to the method, the authenticity of the zero voltage data of the single-phase meter is identified through the relevance between the daily electric quantity time sequence data and the zero voltage, and the method has higher accuracy and lower false alarm rate in the aspect of identifying the authenticity of the zero voltage data.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and in particular to a method and system for checking voltage data of a single-phase meter. 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 the single-phase meter is broken, key components such as voltage components and data processing units fail, and external interference such as electromagnetic interference occurs, the actual voltage of the electric energy meter may not be 0, but the meter measured voltage is 0; 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 voltage data to fail to be collected and replaced by 0 voltage; the abnormal situation that the actual voltage of the electric energy meter is not 0 but the meter measured voltage is 0 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 0 voltage.

[0004] At present, the research on the authenticity of single-phase meter 0 voltage data at home and abroad mainly focuses on power quality analysis and anti-electricity theft technology. There are relatively few studies on the identification method of the authenticity of single-phase meter 0 voltage data. The existing technology mostly relies on experience judgment or simple threshold setting, lacking systematic analysis and efficient algorithm design. Summary of the invention

[0005] The purpose of the present invention is to provide a method and system for verifying single-phase meter voltage data, so as to solve the technical problem of how to verify the authenticity of single-phase meter voltage data.

[0006] On the one hand, a method for checking single-phase meter voltage data is provided, comprising:

[0007] Obtain meter data of a single-phase meter within a preset time period, and count the data volume of the meter data;

[0008] Compare the data volume of the meter data with a preset first quantity threshold, and determine a first target date according to the comparison result, wherein the first target date is used to filter the date corresponding to the meter data according to preset voltage value and current value standards;

[0009] Determine the number of first target days, and compare the number of the first target days with a preset second number threshold, and determine the second target day according to the comparison result, wherein the second target day is used to filter the corresponding first target day according to the preset daily power standard;

[0010] Determine the number of second target days, and compare the number of the second target days with a preset third number threshold, and determine the third target day according to the comparison result, wherein the third target day is used to filter the corresponding second target day through a preset daily power standard; count the number of the third target days, and if the number of the third target day is less than a preset fourth number threshold, determine that the meter voltage is actually not zero.

[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 the first target day according to the comparison result includes, when the amount of meter data is greater than or equal to a first quantity threshold, determining a date in which the corresponding voltage value in the meter data is zero and the corresponding current value is not zero as the first target day.

[0013] Preferably, determining the second target day based on the comparison result includes, when the number of first target days is greater than or equal to a preset second number threshold, extracting the daily electricity amount corresponding to each group of meter data under each first target day, and determining the first target day from which the corresponding daily electricity amount can be extracted as the second target day.

[0014] Preferably, determining the third target day according to the comparison result includes, if the number of the second target days is greater than or equal to a third number threshold, determining a second target day whose corresponding daily power consumption is zero among the second target days as the third target day.

[0015] On the other hand, a system for checking single-phase meter voltage data is also provided, which is used to implement the method for checking single-phase meter voltage data, comprising:

[0016] A data acquisition module is used to acquire meter data of a single-phase meter within a preset time period and to count the data volume of the meter data;

[0017] A screening module, used to compare the data volume of the meter data with a preset first quantity threshold, and determine a first target date according to the comparison result, wherein the first target date is used to screen the date corresponding to the meter data according to preset voltage value and current value standards;

[0018] Also used to determine the number of first target days, and compare the number of the first target days with a preset second number threshold, and determine the second target day according to the comparison result, wherein the second target day is used to filter the corresponding first target day according to the preset daily power standard;

[0019] And used to determine the number of second target days, and compare the number of the second target days with a preset third number threshold, and determine the third target day according to the comparison result, wherein the third target day is used to filter the corresponding second target day through a preset daily power standard; count the number of the third target days, and if the number of the third target day is less than the preset fourth number threshold, it is determined that the meter voltage is actually not zero.

[0020] Preferably, the data acquisition module is specifically 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 screening module is specifically used to, when the data volume of the meter data is greater than or equal to a first quantity threshold, determine a date in which the corresponding voltage value in the meter data is zero and the corresponding current value is not zero as the first target day.

[0022] Preferably, the screening module is specifically used to extract the daily electricity corresponding to each group of meter data under each first target day when the number of first target days is greater than or equal to a preset second number threshold, and determine the first target day from which the corresponding daily electricity can be extracted as the second target day.

[0023] Preferably, the screening module is specifically configured to, if the number of the second target days is greater than or equal to a third number threshold, determine a second target day whose corresponding daily power consumption is zero among the second target days as the third target day.

[0024] In summary, the implementation of the embodiments of the present invention has the following beneficial effects:

[0025] The method and system for verifying the voltage data of a single-phase meter provided by the present invention identify the authenticity of the 0 voltage data of a single-phase meter through the correlation between the daily electricity time series data and the 0 voltage (the correlation means that when the voltage is 0, the daily electricity quantity must be 0), and have higher accuracy and lower false alarm rate in identifying the authenticity of the 0 voltage data. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] Figure 1 The main flow diagram of a method for checking single-phase meter voltage data in an embodiment of the present invention is shown in FIG.

[0028] Figure 2 The figure is a logic diagram of a method for checking voltage data of a single-phase meter in an embodiment of the present invention. DETAILED DESCRIPTION

[0029] 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.

[0030] like Figure 1 and Figure 2 FIG. 1 is a schematic diagram of an embodiment of a method for checking single-phase meter voltage data provided by the present invention. In this embodiment, the method includes:

[0031] Step S1, obtain meter data of a single-phase meter within a preset time period, and count the data volume of the meter data; understandably, the preset time period is within the recent days, which can refer to the recent 7 days, or the recent 3 days, or the recent 10 days, and can be set flexibly. At least one set of meter data is extracted every day, and each set of meter data includes a current, a voltage, and a daily electricity consumption.

[0032] 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.

[0033] Step S2, compare the data volume of the meter data with a preset first quantity threshold, and determine a first target day according to the comparison result, wherein the first target day is used to filter the date corresponding to the meter data by preset voltage value and current value standards; understandably, determine whether the quantity of the meter data is greater than or equal to the first quantity threshold.

[0034] In one embodiment, the first target date is determined according to the comparison result, when the data volume of the meter data is greater than or equal to the first quantity threshold, the date on which the corresponding voltage value in the meter data is zero and the corresponding current value is not zero is determined as the first target date. It is understandable that if it is greater than or equal to the first quantity threshold, the date on which the corresponding voltage in the recent days is all 0 but the current is not all 0 is determined as the first target date. The first quantity threshold is at least 5.

[0035] Step S3, determine the number of first target days, and compare the number of first target days with a preset second number threshold, and determine the second target day according to the comparison result, wherein the second target day is used to filter the corresponding first target day through a preset daily power standard; it can be understood that it is determined whether the number of the first target day is greater than or equal to the second number threshold.

[0036] In one embodiment, the second target day is determined according to the comparison result, when the number of the first target days is greater than or equal to a preset second quantity threshold, the daily electricity corresponding to each set of meter data under each first target day is extracted, and the first target day from which the corresponding daily electricity can be extracted is determined as the second target day. It is understandable that if it is greater than or equal to the second quantity threshold, the daily electricity corresponding to each set of meter data under each first target day is extracted, and the first target day from which the corresponding daily electricity can be extracted is determined as the second target day. The second quantity threshold is at least 1.

[0037] Step S4, determine the number of the second target day, and compare the number of the second target day with the preset third number threshold, and determine the third target day according to the comparison result, wherein the third target day is used to filter the corresponding second target day by the preset daily power standard; count the number of the third target day, and if the number of the third target day is less than the preset fourth number threshold, then determine that the meter voltage is actually not zero. It is understandable that the number of the second target day is counted to determine whether the number of the second target day is greater than or equal to the third number threshold; and determine whether the number of the third target day is less than the fourth number threshold, and if it is less than the fourth number threshold, then determine that the meter voltage is actually not 0.

[0038] In one embodiment, the determination of the third target day according to the comparison result includes: if the number of the second target days is greater than or equal to the third number threshold, the second target day whose corresponding daily electricity quantity is zero among the second target days is determined as the third target day. It is determined whether the number of the second target days is greater than or equal to the third number threshold. If it is greater than or equal to the third number threshold, the second target day whose corresponding daily electricity quantity is 0 among the second target days is determined as the third target day, the number of the third target days is counted, and it is determined whether the number of the third target days is less than the fourth number threshold. If it is less than the fourth number threshold, it is determined that the meter voltage is actually not 0. Among them, the third number threshold is at least 1; the fourth number threshold is at least 1.

[0039] In an embodiment of the present invention, a system for checking single-phase meter voltage data is also provided, which is used to implement the method for checking single-phase meter voltage data, including:

[0040] A data acquisition module is used to acquire meter data of a single-phase meter within a preset time period and to count the data volume of the meter data;

[0041] A screening module, used to compare the data volume of the meter data with a preset first quantity threshold, and determine a first target date according to the comparison result, wherein the first target date is used to screen the date corresponding to the meter data according to preset voltage value and current value standards;

[0042] Also used to determine the number of first target days, and compare the number of the first target days with a preset second number threshold, and determine the second target day according to the comparison result, wherein the second target day is used to filter the corresponding first target day according to the preset daily power standard;

[0043] And used to determine the number of second target days, and compare the number of the second target days with a preset third number threshold, and determine the third target day according to the comparison result, wherein the third target day is used to filter the corresponding second target day through a preset daily power standard; count the number of the third target days, and if the number of the third target day is less than the preset fourth number threshold, it is determined that the meter voltage is actually not zero.

[0044] In a specific embodiment, the data acquisition module is specifically 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 a specific embodiment, the screening module is specifically used to, when the data volume of the meter data is greater than or equal to a first quantity threshold, determine a date in which the corresponding voltage value in the meter data is zero and the corresponding current value is not zero as the first target day.

[0046] In a specific embodiment, the screening module is specifically used to extract the daily electricity consumption corresponding to each group of meter data under each first target day when the number of first target days is greater than or equal to a preset second number threshold, and determine the first target day from which the corresponding daily electricity consumption can be extracted as the second target day.

[0047] In a specific embodiment, the screening module is specifically used to, if the number of the second target days is greater than or equal to a third number threshold, determine the second target day whose corresponding daily power consumption is zero among the second target days as the third target day.

[0048] It should be noted that the system described in the above embodiment corresponds to the method described in the above embodiment. Therefore, the undetailed parts of the system described in the above embodiment can be obtained by referring to the contents of the method described in the above embodiment, and will not be repeated here.

[0049] In summary, the implementation of the embodiments of the present invention has the following beneficial effects:

[0050] The method and system for verifying the voltage data of a single-phase meter provided by the present invention identify the authenticity of the 0 voltage data of a single-phase meter through the correlation between the daily electricity time series data and the 0 voltage (the correlation means that when the voltage is 0, the daily electricity quantity must be 0), and have higher accuracy and lower false alarm rate in identifying the authenticity of the 0 voltage data.

[0051] 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 checking single-phase meter voltage data, characterized in that: include: Obtain meter data of a single-phase meter within a preset time period, and count the data volume of the meter data; Compare the data volume of the meter data with a preset first quantity threshold, and determine a first target date according to the comparison result, wherein the first target date is used to filter the date corresponding to the meter data according to preset voltage value and current value standards; Determine the number of first target days, and compare the number of the first target days with a preset second number threshold, and determine the second target day according to the comparison result, wherein the second target day is used to filter the corresponding first target day according to the preset daily power standard; Determine the number of second target days, and compare the number of the second target days with a preset third number threshold, and determine the third target day according to the comparison result, wherein the third target day is used to filter the corresponding second target day through a preset daily power standard; count the number of the third target days, and if the number of the third target day is less than a preset fourth number threshold, determine that the meter voltage is actually not zero.

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 the first target date according to the comparison result includes, when the amount of meter data is greater than or equal to a first quantity threshold, determining a date in which the corresponding voltage value in the meter data is zero and the corresponding current value is not zero as the first target date.

4. The method according to claim 3, characterized in that Determining the second target day based on the comparison result includes, when the number of first target days is greater than or equal to a preset second number threshold, extracting the daily electricity quantity corresponding to each group of meter data under each first target day, and determining the first target day from which the corresponding daily electricity quantity can be extracted as the second target day.

5. The method according to claim 4, characterized in that Determining the third target day according to the comparison result includes, if the number of the second target days is greater than or equal to a third number threshold, determining a second target day whose corresponding daily power consumption is zero among the second target days as the third target day.

6. A system for checking single-phase meter voltage data, used to implement the method according to any one of claims 1 to 5, characterized in that: include, A data acquisition module is used to acquire meter data of a single-phase meter within a preset time period and to count the data volume of the meter data; A screening module, used to compare the data volume of the meter data with a preset first quantity threshold, and determine a first target date according to the comparison result, wherein the first target date is used to screen the date corresponding to the meter data according to preset voltage value and current value standards; Also used to determine the number of first target days, and compare the number of the first target days with a preset second number threshold, and determine the second target day according to the comparison result, wherein the second target day is used to filter the corresponding first target day according to the preset daily power standard; And used to determine the number of second target days, and compare the number of the second target days with a preset third number threshold, and determine the third target day according to the comparison result, wherein the third target day is used to filter the corresponding second target day through a preset daily power standard; count the number of the third target days, and if the number of the third target day is less than the preset fourth number threshold, it is determined that the meter voltage is actually not zero.

7. The system according to claim 6, characterized in that The data acquisition module is specifically 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.

8. The system according to claim 7, characterized in that The screening module is specifically used to, when the data volume of the meter data is greater than or equal to a first quantity threshold, determine a date in which the corresponding voltage value in the meter data is zero and the corresponding current value is not zero as the first target date.

9. The system according to claim 8, characterized in that The screening module is specifically used to extract the daily electricity corresponding to each group of meter data under each first target day when the number of first target days is greater than or equal to a preset second number threshold, and determine the first target day from which the corresponding daily electricity can be extracted as the second target day.

10. The system according to claim 9, characterized in that The screening module is specifically configured to, if the number of the second target days is greater than or equal to a third number threshold, determine a second target day whose corresponding daily power consumption is zero among the second target days as the third target day.

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