Error detection method and system for electric energy meter and storage medium

Abstract

The application discloses an error detection method and system of an electric energy meter and a storage medium, relates to the technical field of electric meter testing, and comprises the following steps: in the case that a reference electric energy meter and a test electric energy meter both work at a reference power supply, reading the reference electric energy meter and the test electric energy meter according to daily freezing time, automatic meter reading time, the meter number of the reference electric energy meter and the meter number of the test electric energy meter, obtaining first test data, and converting the first test data to obtain reference electric meter data; in the case that the test electric energy meter is in a high-temperature and high-humidity environment, reading the reference electric energy meter and the test electric energy meter according to daily freezing time, meter reading time, the meter number of the reference electric energy meter and the meter number of the test electric energy meter, obtaining second test data, and converting the second test data to obtain test electric meter data. The error detection method of the electric energy meter does not need to increase an error detection device, and the cost of detection is reduced.

Description

Technical Field

[0001] This application relates to the field of electricity meter testing technology, and in particular to an error detection method, system and storage medium for electricity meters. Background Technology

[0002] As power operators place increasingly higher demands on the technology of electronic energy meters, the requirements for their reliability testing are also becoming more stringent. Accelerated reliability testing necessitates daily checks on the metered energy and measurement errors. Therefore, each energy meter requires a corresponding error detection device. However, with the increasing number of test samples, the number of error detection devices also needs to increase. Since these error detection devices must be placed in an aging chamber, they have very high performance requirements and are extremely expensive, resulting in high costs for accelerated reliability testing. Reducing the cost of reliability testing is a pressing issue that needs to be addressed. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an error detection method, system, and storage medium for electricity meters, which can obtain metering error information of electricity meters at regular intervals and sequences, without the need to add an error detection device, thus reducing the detection cost.

[0004] To solve the above-mentioned technical problems, this application proposes the following technical solution:

[0005] The first aspect of this application provides an error detection method for an electricity meter, comprising:

[0006] Obtain the meter numbers of several reference energy meters and several test energy meters;

[0007] Set the daily freeze time and automatic meter reading time according to the preset requirements;

[0008] When both the reference energy meter and the test energy meter are operating on the reference power supply, the reference energy meter and the test energy meter are read according to the daily freeze time, the automatic meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain the first test data, and the first test data is converted to obtain the reference meter data.

[0009] When the test energy meter is under high temperature and high humidity, the reference energy meter and the test energy meter are read according to the daily freezing time, the meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain second test data, and the second test data is converted to obtain test meter data;

[0010] The daily energy consumption change rate is obtained by calculating the data from the reference meter and the test meter.

[0011] The daily electricity consumption change rate is compared with the preset electricity meter change rate threshold to obtain the error detection result.

[0012] The error detection method for an electricity meter according to the first aspect of this application has at least the following beneficial effects: the error detection method for an electricity meter of this application can obtain reference meter data and test meter data in a timed and sequential manner based on the daily freeze time, automatic meter reading time, meter number of the test electricity meter and meter number of the reference electricity meter, and directly determine whether the electricity meter is abnormal based on the obtained reference meter data and test meter data, without the need to add an additional error detection device, thus reducing the detection cost.

[0013] According to some embodiments of the first aspect of this application, the first test data includes a first real-time clock, a first freeze time, and the first day's electricity consumption, and the reference meter data includes a first time difference and the change in the first day's electricity consumption.

[0014] The process involves reading the reference energy meter and the test energy meter based on the daily freeze time, the automatic meter reading time, the meter number of the reference energy meter, and the meter number of the test energy meter to obtain first test data. This first test data is then converted to obtain baseline meter data, including:

[0015] The reference energy meter and the test energy meter are read based on the daily freeze time, the automatic meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain the first real-time clock, the first freeze time and the first day's energy consumption;

[0016] The first real-time clock, the first freeze time, and the first day's electricity consumption are converted to obtain the first time difference and the change in the first day's electricity consumption. The first time difference is the difference between the time of the test electricity meter when the reference power supply is on and the time of the reference electricity meter. The change in the first day's electricity consumption is the difference between the first day's electricity consumption and the first day's electricity consumption obtained from the previous daily freeze time.

[0017] According to some embodiments of the first aspect of this application, after reading the reference energy meter and the test energy meter based on the daily freeze time, the automatic meter reading time, the meter number of the reference energy meter, and the meter number of the test energy meter to obtain first test data, and converting the first test data to obtain base meter data, the method further includes:

[0018] The reference energy meter number, the test energy meter number, the automatic meter reading time, the reference energy meter time, the test energy meter time, the first time difference, the first freeze time, the energy used on the first day, and the change in energy used on the first day are summarized to generate a benchmark energy meter report.

[0019] According to some embodiments of the first aspect of this application, after summarizing the meter number of the reference energy meter, the meter number of the test energy meter, the automatic meter reading time, the time of the reference energy meter, the time of the test energy meter, the first time difference, the first freeze time, the energy used on the first day, and the change in energy used on the first day to generate the benchmark energy meter report, the method further includes:

[0020] With the reference power supply on, and after acquiring reference meter data at least twice consecutively, the high temperature and high humidity state is activated to allow the test energy meter to operate under high temperature and high humidity conditions.

[0021] According to some embodiments of the first aspect of this application, the second test data includes a second real-time clock, a second freeze time, and a second daily energy consumption, and the test meter data includes a second time difference and a second daily energy consumption change.

[0022] The process involves reading data from the reference energy meter and the test energy meter based on the daily freeze time, the meter reading time, the meter number of the reference energy meter, and the meter number of the test energy meter to obtain second test data. This second test data is then converted to obtain test meter data, including:

[0023] The reference energy meter and the test energy meter are read based on the daily freeze time, the automatic meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain the second real-time clock, the second freeze time and the second day's energy consumption;

[0024] The second real-time clock, the second freeze time, and the second day's electricity consumption are converted to obtain the second time difference and the change in the second day's electricity consumption; wherein, the second time difference is the difference between the time of the reference electricity meter and the time of the test electricity meter under high temperature and high humidity conditions, and the change in the second day's electricity consumption is the difference between the second day's electricity consumption and the second day's electricity consumption obtained from the previous daily freeze time.

[0025] According to some embodiments of the first aspect of this application, the calculation of the daily electricity consumption change rate based on the reference meter data and the test meter data includes:

[0026] The daily electricity consumption change rate is obtained by dividing the change in electricity consumption on the second day by the change in electricity consumption on the first day.

[0027] According to some embodiments of the first aspect of this application, after reading the reference energy meter and the test energy meter based on the daily freeze time, the meter reading time, the meter number of the reference energy meter, and the meter number of the test energy meter to obtain second test data, and converting the second test data to obtain test meter data, the method further includes:

[0028] The daily electricity consumption metering error is obtained from the daily electricity consumption change rate, and the daily electricity consumption metering error is the daily electricity consumption change rate.

[0029] The meter number of the reference energy meter, the meter number of the test energy meter, the automatic meter reading time, the time of the reference energy meter, the time of the test energy meter, the second time difference, the second freeze time, the second day's energy consumption, the second day's energy consumption change, the daily energy consumption change rate, and the daily energy consumption metering error are summarized to generate a test meter report.

[0030] According to some embodiments of the first aspect of this application, the step of comparing the daily electricity consumption change rate with a preset electricity meter change rate threshold to obtain an error detection result includes:

[0031] When the daily electricity consumption change rate is less than the electricity meter change rate threshold, the error detection result indicates that the electricity meter has an error.

[0032] When the daily electricity consumption change rate is greater than the meter change rate threshold, the error detection result indicates that the electricity meter is working normally.

[0033] According to some embodiments of the first aspect of this application, after comparing the daily electricity consumption change rate with a preset electricity meter change rate threshold to obtain an error detection result, the method further includes one of the following:

[0034] The detection process is interrupted when the time of the reference energy meter is abnormal.

[0035] The detection process is interrupted when the time of the tested energy meter is abnormal.

[0036] If the first time difference is abnormal, the detection process is interrupted;

[0037] If the second time difference is abnormal, the detection process is interrupted.

[0038] If the daily electricity consumption metering error is abnormal, the detection process will be interrupted.

[0039] When both the first time difference and the second time difference are abnormal and the abnormal errors are consistent, the reference power supply is determined to be abnormal.

[0040] If both the change in electrical energy usage on the first day and the change in electrical energy usage on the second day are abnormal and the abnormality error is consistent, the reference power supply is determined to be abnormal.

[0041] A second aspect of this application provides an error detection system for an electricity meter, comprising:

[0042] At least one memory;

[0043] At least one processor;

[0044] At least one program;

[0045] The program is stored in the memory, and the processor executes at least one of the programs to achieve the following:

[0046] Error detection method for electricity meters as described in any of the first aspects of this application.

[0047] A third aspect of this application provides a computer-readable storage medium storing computer-executable signals for performing:

[0048] Error detection method for electricity meters as described in any of the first aspects of this application.

[0049] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0050] Additional aspects and advantages of this application will become apparent and readily understood in conjunction with the following description of the embodiments, in which:

[0051] Figure 1 The main flowchart of an error detection method for an energy meter provided in some embodiments of this application;

[0052] Figure 2 A sub-flowchart of an error detection method for an energy meter provided in some embodiments of this application;

[0053] Figure 3 A sub-flowchart of an error detection method for an energy meter provided in some embodiments of this application;

[0054] Figure 4 A sub-flowchart of an error detection method for an energy meter provided in some embodiments of this application;

[0055] Figure 5A schematic diagram of a system scheme for an error detection method for an electricity meter provided in some embodiments of this application;

[0056] Figure 6 This is a block diagram of an error detection system for an electricity meter provided in some embodiments of this application. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0058] It should be noted that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than that shown in the flowchart. The terminology in the specification, claims, and the foregoing drawings is used to distinguish similar objects and is not necessarily used to describe a specific order or sequence.

[0059] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0060] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0061] It should be noted that reliability testing is an experiment conducted to measure, quantify, or classify the reliability indicators or properties of a project. Reliability testing differs from environmental testing, although it does include environmental testing. Accelerated reliability testing, on the other hand, refers to a testing method that subjectes the product under test to high-temperature and high-humidity environments to accelerate performance aging and estimate product lifespan characteristics. This type of testing requires a large number of samples (the standard requires a total of 150 samples, divided into 5 groups of 30 each), and a long testing time (the testing duration varies depending on the testing environment, ranging from one or two months to about half a year). Furthermore, during the test, it is generally necessary to monitor the meter's key performance indicators, such as measurement errors, in real time. If any abnormality is detected during the test, the accelerated reliability test must be stopped immediately to prevent unnecessary waste of testing resources. The setup of this accelerated reliability test environment, which can detect measurement errors in real time, requires equipment including a standard source, an error detection device, a monitoring computer, and a temperature and humidity control chamber. Typically, a large temperature and humidity control chamber is used. The error detection device inside the chamber can simultaneously test the measurement errors of multiple electricity meters. During the reliability test, the tested sample operates under conditions exceeding normal operating conditions, applying stress to shorten the failure time without introducing new failure mechanisms. By recording and analyzing the failures in this accelerated test, the failure rate distribution under test conditions can be established, and the failure rate distribution under accelerated use conditions can be inferred from the service life stress model, thereby estimating the product's service life under normal use conditions.

[0062] As power operators place increasingly higher demands on the technology of electronic energy meters, the requirements for reliability testing of these meters are also becoming more stringent. In the process of accelerating reliability testing, it is necessary to check the metered energy and metering error of the energy meters every day. Therefore, each energy meter needs to be equipped with a corresponding error detection device. However, as the number of test samples increases, the number of error detection devices should also increase accordingly. Since the error detection devices need to be placed in an aging chamber, the performance requirements are very high, and the cost is also very expensive. This results in an increase in testing costs while increasing the number of error detection devices.

[0063] The error detection method for electricity meters in this application uses dedicated error calculation software to sequentially acquire real-time events and the two most recent daily frozen data for each electricity meter at set times each day. The data is then calculated and converted to obtain the metering error information. This error detection method allows companies to achieve metering error detection without expensive error detection equipment when setting up accelerated reliability testing environments, reducing measurement costs while ensuring measurement accuracy.

[0064] Reference Figure 1In a first aspect, embodiments of this application provide an error detection method for an electricity meter, including but not limited to steps S110, S120, S130, S140, S150, and S160.

[0065] Step S110: Obtain the meter numbers of several reference energy meters and several test energy meters;

[0066] Step S120: Set the daily freeze time and automatic meter reading time according to preset requirements;

[0067] Step S130: With both the reference energy meter and the test energy meter operating on the reference power supply, the reference energy meter and the test energy meter are read according to the daily freeze time, automatic meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain the first test data, and the first test data is converted to obtain the reference meter data.

[0068] Step S140: Under the condition of high temperature and high humidity, the reference energy meter and the test energy meter are read according to the daily freezing time, meter reading time, meter number of the reference energy meter and the meter number of the test energy meter to obtain the second test data, and the second test data is converted to obtain the test meter data.

[0069] Step S150: Calculate the daily electricity consumption change rate by combining the reference meter data and the test meter data.

[0070] Step S160: Compare the daily electricity consumption change rate with the preset electricity meter change rate threshold to obtain the error detection result.

[0071] Reference Figure 5 , Figure 5This is a schematic diagram of a system scheme for an error detection method for an electricity meter provided in some embodiments of this application. According to one embodiment of this application, the electricity meter uses dedicated error calculation software to detect metering errors during accelerated reliability testing. The accelerated reliability testing environment of this application includes a temperature and humidity control box, a reference power supply, and an error display computer with the dedicated error calculation software installed. Several test electricity meters are installed inside the temperature and humidity control box. To prevent abnormalities in the reference power supply from affecting the judgment of the test results of the test electricity meters, and to avoid other interference factors affecting the test results, several reference electricity meters are also installed outside the temperature and humidity control box. Before the experiment officially begins, it is necessary to obtain the meter numbers of several reference energy meters and several test energy meters. These meter numbers are then input into the error calculation software so that the system can automatically identify the energy meters being read. After this step, the reference power supply is turned on, and the temperature and humidity control box is set (e.g., temperature 85℃, humidity 95%). Simultaneously, the energy meter data, daily freeze time, and automatic meter reading time are set according to preset requirements. To ensure optimal effectiveness of automatic meter reading, the automatic meter reading time should be at least five minutes later than the daily freeze time. Specifically, the voltage and current provided by the reference power supply are applied to the energy meters and reference energy meters inside the temperature and humidity control box. The error display computer, equipped with the error calculation software, is connected to the temperature and humidity control box via a communication interface (e.g., RS485 communication interface) and can control the temperature and humidity of the control box.

[0072] According to another embodiment of this application, the reference energy meter and the test energy meter are read twice a day. In order to reduce the influence of interference factors and improve the accuracy of test results, during the test, the error display computer will read the data of the reference energy meter and the test energy meter in a fixed sequence according to the set daily freeze time, automatic meter reading time and the meter number of the reference energy meter. After obtaining the first test data, the error calculation software will convert the obtained first test data to obtain the reference energy meter data. The reference energy meter data can not only reflect the performance of the meter under normal conditions, but also reflect whether there are errors in the reference energy meter and the test energy meter, so that the operator can correct the test energy meter in time. After obtaining the reference meter data twice consecutively, the accelerated reliability test of the electricity meter will officially begin. During the accelerated reliability test, even if the test electricity meter is in a high temperature and high humidity state while the reference electricity meter remains unchanged, this application will automatically and sequentially read the second test data of the test electricity meter and the reference electricity meter according to the set daily freeze time and meter reading time. The error calculation software will then convert the obtained second test data to obtain the test meter data. Finally, the reference meter data and the test meter data will be calculated to obtain the daily electricity consumption change rate. The daily electricity consumption change rate will be compared with the preset meter change rate threshold to obtain the error detection result.

[0073] Specifically, the phrase "reading the reference energy meter and the test energy meter twice a day" in this application is only to better illustrate the workflow of the energy meter error detection method of this application and does not constitute a limitation on this application. More specifically, the reference energy meter and the test energy meter can be read twice a day, three times a day, or four times a day, as long as the number of readings is greater than or equal to two.

[0074] According to one embodiment of this application, when conducting a set of accelerated reliability tests (using one temperature and humidity control chamber), a computer equipped with dedicated error calculation software can be used instead of a set of error detection devices to detect measurement errors. When conducting N sets of accelerated reliability tests (using N temperature and humidity control chambers), a computer equipped with dedicated error calculation software can also be used instead of N sets of error detection devices to detect measurement errors, which greatly reduces the cost of setting up the test environment and the cost of product testing.

[0075] It should be noted that the error detection method for electricity meters in this application can obtain the reference meter data and test meter data in a timed and sequential manner based on the daily freeze time, automatic meter reading time, meter number of the test meter and meter number of the reference meter, and directly obtain the error detection result based on the obtained reference meter data and test meter data, without the need for additional error detection devices, thus reducing the detection cost.

[0076] It is understood that this application also includes: setting the test voltage, test current and power factor according to preset requirements; broadcasting calibration of the time of the reference energy meter and the test energy meter according to preset system time; and setting the daily freeze time and automatic meter reading time according to preset requirements.

[0077] According to one embodiment of this application, the electricity meter data includes test voltage, test current, and power factor. Before formally entering the accelerated reliability test of the electricity meter, it is necessary to set the test voltage (Un), test current (10Imax), and power factor (COSΦ = 0.8) according to preset requirements. After setting the test voltage, test current, and power factor, it is also necessary to broadcast the time of the reference electricity meter and the test electricity meter according to the preset system time, so that the time of the reference electricity meter and the test electricity meter can be unified, reducing the influence of time factors on the metering error and improving the accuracy of the metering error. After broadcasting the time of the reference electricity meter and the test electricity meter, it is also necessary to set the daily freeze time and the automatic meter reading time. For example, if the daily freeze time is set to 9:00:00 every day, the automatic meter reading time can be set to 9:05:00 every day. The automatic meter reading time should be at least five minutes later than the daily freeze time to ensure the best effectiveness of automatic reading.

[0078] Reference Figure 2In a first aspect, embodiments of this application provide an error detection method for an electricity meter, including but not limited to steps S210 and S220.

[0079] Step S210: Read the reference energy meter and the test energy meter according to the daily freeze time, automatic meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain the first real-time clock, the first freeze time and the first day's electricity usage.

[0080] Step S220: Calculate the first real-time clock, the first freeze time, and the first day's electricity usage to obtain the first time difference and the change in the first day's electricity usage. The first time difference is the difference between the time of the test electricity meter when the reference power supply is on and the time of the reference electricity meter. The change in the first day's electricity usage is the difference between the first day's electricity usage and the first day's electricity usage obtained from the previous daily freeze time.

[0081] According to one embodiment of this application, the first test data includes a first real-time clock, a first freeze time, and the first day's electricity consumption. The reference meter data includes a first time difference and the change in the first day's electricity consumption. After setting the daily freeze time and the automatic meter reading time, the reference meter will automatically freeze the electricity consumption according to the set daily freeze time. During the automatic meter reading time, the reference meter and the test meter will be read to obtain the first real-time clock, the first freeze time, and the first day's electricity consumption. Specifically, during the period from the daily freeze time to the automatic meter reading time, the daily electricity consumption will stabilize at the value at the daily freeze time and will no longer change, reducing the probability of errors in the read first day's electricity consumption. After the automatic meter reading time, the reference meter will stop the freeze operation and continue testing the electricity consumption.

[0082] According to another embodiment of this application, after obtaining the first real-time clock, the first freeze time, and the first day's electricity consumption, the reference electricity meter and the test electricity meter will send the reference meter data to a computer equipped with error calculation software through a connected communication interface. This allows the error calculation software to perform a conversion operation based on the first real-time clock, the first freeze time, and the first day's electricity consumption to obtain the first time difference and the change in the first day's electricity consumption. This is used to calculate the deviation in the measurement of the reference electricity meter under normal conditions. The first time difference is the difference between the reference electricity meter's time and the system time, and the change in the first day's electricity consumption is the difference between the first day's electricity consumption and the first day's electricity consumption obtained from the previous daily freeze time.

[0083] Specifically, if the electricity consumption for the first day was not calculated during the previous daily freeze period, the error calculation software will not calculate the change in electricity consumption for the first day. More specifically, the change in electricity consumption for the first day will only be calculated if two consecutive daily freeze periods occur and the electricity consumption for the first day is recorded twice.

[0084] Understandably, the process involves reading the reference energy meter and test energy meter based on the daily freeze time, automatic meter reading time, reference energy meter number, and test energy meter number to obtain the first test data. After converting the first test data to obtain the benchmark energy meter data, the process also includes summarizing the reference energy meter number, test energy meter number, automatic meter reading time, reference energy meter time, test energy meter time, first time difference, first freeze time, first day's energy consumption, and first day's energy consumption change to generate a benchmark energy meter report.

[0085] According to one embodiment of this application, in order to enable operators to more intuitively understand the performance of the reference energy meter and the test energy meter under the reference power supply condition, and to facilitate subsequent error comparison, this application will also summarize the meter number of the reference energy meter, the meter number of the test energy meter, the automatic meter reading time, the time of the reference energy meter, the time of the test energy meter, the first time difference, the first freeze time, the energy used on the first day, and the change in energy used on the first day, and generate a reference meter report, which displays multiple data in a more intuitive way, making it easier for operators to calculate.

[0086] Specifically, the benchmark electricity meter report can be in tabular form, or in various display formats such as bar charts and pie charts.

[0087] Understandably, after summarizing the reference energy meter number, the test energy meter number, the automatic meter reading time, the reference energy meter time, the test energy meter time, the first time difference, the first freeze time, the first day's energy consumption, and the first day's energy consumption change to generate a benchmark energy meter report, the following is also included: with the benchmark power supply on, and after at least two consecutive acquisitions of benchmark energy meter data, the high temperature and high humidity state is activated to allow the test energy meter to operate under high temperature and high humidity conditions.

[0088] According to one embodiment of this application, in order to reduce the error in reading the reference meter data, this application will continuously read the reference first real-time clock, the first freeze time and the first day's electricity consumption twice according to the set daily freeze time and automatic meter reading time. Only after at least two consecutive automatic freezes and two consecutive rounds of timed and sequential readings have obtained the first real-time clock, the first freeze time and the first day's electricity consumption, will the high temperature and high humidity state be activated and the electricity meter will officially enter the accelerated reliability test.

[0089] According to another embodiment of this application, after the first automatic freeze and the first round of reading obtain the first real-time clock, the first freeze time and the first day's power consumption, the error calculation software determines that the two rounds of reading and conversion operations have not been completed, and will continue to read the first real-time clock, the first freeze time and the first day's power consumption in the next round, without activating the high temperature and high pressure state.

[0090] Reference Figure 3 In a first aspect, embodiments of this application provide an error detection method for an electricity meter, including but not limited to steps S310 and S320.

[0091] Step S310: Read the reference energy meter and the test energy meter according to the daily freeze time, automatic meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain the second real-time clock, the second freeze time and the second day's energy consumption.

[0092] Step S320: Calculate the second real-time clock, the second freeze time, and the second day's electricity usage to obtain the second time difference and the change in the second day's electricity usage; wherein, the second time difference is the difference between the time of the reference electricity meter and the time of the test electricity meter under high temperature and high humidity conditions, and the change in the second day's electricity usage is the difference between the second day's electricity usage and the second day's electricity usage obtained from the previous daily freeze time.

[0093] It should be noted that the second test data includes the second real-time clock, the second freeze time, and the second day's electricity consumption. The test meter data includes the second time difference and the second day's electricity consumption change.

[0094] According to one embodiment of this application, after formally entering the accelerated reliability test of the electricity meter, during the accelerated reliability test, the test electricity meter and the reference electricity meter will automatically freeze the electricity used according to the set daily freeze time, and read the second real-time clock, the second freeze time, and the electricity used on the second day at the automatic meter reading time. After obtaining the second real-time clock, the second freeze time, and the electricity used on the second day, the test electricity meter and the reference electricity meter will send the second test data to a computer equipped with error calculation software through the connected communication interface. The error calculation software will then perform a conversion operation based on the second real-time clock, the second freeze time, and the electricity used on the second day to obtain the second time difference and the change in electricity used on the second day. This is used to calculate the deviation between the test electricity meter under the test environment and the reference electricity meter under normal environment. The second time difference is the difference between the time of the test electricity meter and the system time, and the change in electricity used on the second day is the difference between the electricity used on the second day and the electricity used on the second day obtained from the previous daily freeze time.

[0095] Understandably, the daily energy consumption change rate is calculated by combining the baseline meter data and the test meter data. This includes dividing the change in energy consumption on the second day by the change in energy consumption on the first day to obtain the daily energy consumption change rate.

[0096] According to one embodiment of this application, the daily energy consumption change rate is the percentage of the change in energy consumption on the second day to the energy consumption on the first day. If the energy consumption on the second day was not calculated during the previous daily freeze period, the error calculation software will not calculate the change in energy consumption on the second day. More specifically, the change in energy consumption on the second day and the daily energy consumption change rate will only be calculated if two consecutive daily freeze periods have occurred and the energy consumption on the second day has been read twice.

[0097] Reference Figure 4 In a first aspect, embodiments of this application provide an error detection method for an electricity meter, including but not limited to steps S410 and S420.

[0098] Step S410: Obtain the daily electricity consumption metering error from the daily electricity consumption change rate. The daily electricity consumption metering error is the daily electricity consumption change rate.

[0099] Step S420: Summarize the meter number of the reference energy meter, the meter number of the test energy meter, the automatic meter reading time, the time of the reference energy meter, the time of the test energy meter, the second time difference, the second freeze time, the energy used on the second day, the change in energy used on the second day, the rate of change in daily energy used, and the metering error of daily energy used, and generate a test meter report.

[0100] According to one embodiment of this application, under a reference temperature and humidity environment, the error of the tested energy meter has been adjusted to less than 0.1%. At this time, the daily energy consumption change rate is equal to the daily energy consumption metering error. Therefore, the daily energy consumption metering error can be obtained from the daily energy consumption change rate, and the daily energy consumption metering error is presented as a percentage. To enable operators to more intuitively understand the performance of the tested energy meter in the accelerated reliability test, and to facilitate subsequent error comparison, this application will also generate a test meter report based on the meter number of the tested energy meter, the meter number of the reference energy meter, the automatic meter reading time, the time of the reference energy meter, the time of the tested energy meter, the second time difference, the second freeze time, the second day's energy consumption, the second day's energy consumption change, the daily energy consumption change rate, and the daily energy consumption metering error.

[0101] Specifically, the benchmark electricity meter report and the test electricity meter report can be presented as bar charts, pie charts, or other methods. After obtaining the benchmark electricity meter report and the test electricity meter report, different colors or lines can be used to plot the benchmark electricity meter report and the test electricity meter report in the same table, so that operators can more intuitively see the error of the electricity meter under the reference power supply and under high temperature and high humidity conditions.

[0102] Understandably, the error detection results are obtained by comparing the daily electricity consumption change rate with the preset electricity meter change rate threshold. These results include: if the daily electricity consumption change rate is less than the electricity meter change rate threshold, the error detection result indicates that the tested electricity meter has an error; if the daily electricity consumption change rate is greater than the electricity meter change rate threshold, the error detection result indicates that the tested electricity meter is working normally.

[0103] Understandably, after comparing the daily electricity consumption change rate with the preset electricity meter change rate threshold to obtain the error detection result, the following options are also considered: The detection process is interrupted when the reference electricity meter's time is abnormal; the detection process is interrupted when the test electricity meter's time is abnormal; the detection process is interrupted when the first time difference is abnormal; the detection process is interrupted when the second time difference is abnormal; the detection process is interrupted when the daily electricity consumption metering error is abnormal; the reference power supply is determined to be abnormal when both the first and second time differences are abnormal and the abnormal errors are consistent; the reference power supply is determined to be abnormal when both the first and second day's electricity consumption change amounts are abnormal and the abnormal errors are consistent.

[0104] According to one embodiment of this application, after obtaining the reference meter report and the test meter report, the error calculation software will also comprehensively compare multiple data points from the reference meter and the test meter to calculate the error between the reference meter and the test meter, thereby obtaining the performance data of the meter in the accelerated reliability test of the meter and determining whether the test meter and the reference meter have any abnormalities.

[0105] According to another embodiment of this application, the application can also determine the current situation based on reference meter data and test meter data. If the time of the reference meter, the time of the test meter, the first time difference, the second time difference, or the daily energy consumption metering error is abnormal, it indicates that the reference meter or test meter is malfunctioning. In this case, the reliability test needs to be interrupted in real time to avoid unnecessary loss of test resources. If both the first and second time differences are abnormal and the abnormal errors of all meters are consistent, it is considered that the reference power supply is malfunctioning, and the metering function is normal. If both the calculated changes in daily energy consumption and the changes in daily energy consumption are abnormal and the abnormal errors of all meters are consistent, it is considered that the reference power supply is malfunctioning, and the metering function is normal.

[0106] Secondly, referring to Figure 6 This application provides an error detection system for an electricity meter, comprising:

[0107] At least one memory 200;

[0108] At least one processor 100;

[0109] At least one program;

[0110] The program is stored in memory 200, and processor 100 executes at least one program to achieve:

[0111] An error detection method for an electricity meter, as described in any embodiment of the first aspect of this application.

[0112] The processor 100 and the memory 200 can be connected via a bus or other means.

[0113] Memory 200, as a non-transitory readable storage medium, can be used to store non-transitory software instructions and non-transitory instructions. Furthermore, memory 200 may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. It is understood that memory 200 may optionally include remotely located memories 200 relative to processor 100, which can be connected to processor 100 via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0114] The processor 100 executes non-transient software instructions, commands, and signals stored in the memory 200 to perform various functional applications and data processing, thereby implementing an error detection method for an energy meter according to the first aspect of the embodiment described above.

[0115] The non-transient software instructions required to implement the energy meter error detection system of the above embodiments are stored in the memory 200. When executed by the processor 100, the energy meter error detection method of the first aspect of this application is executed, for example, the method described above. Figure 1 Method steps S110 to S160 in the text Figure 2 Method steps S210 to S220, Figure 3 Method steps S310 to S320 in the text Figure 4 Method steps S410 to S420.

[0116] Thirdly, embodiments of this application provide a computer-readable storage medium storing computer-executable signals for execution:

[0117] An error detection method for an electricity meter, as described in any embodiment of the first aspect of the application.

[0118] For example, execute the above description. Figure 1 Method steps S110 to S160 in the text Figure 2 Method steps S210 to S220, Figure 3Method steps S310 to S320 in the text Figure 4 Method steps S410 to S420.

[0119] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0120] Based on the above description of the embodiments, those skilled in the art will understand that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a readable medium, which may include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable signals, data structures, instruction modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible by a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable signals, data structures, instruction modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0121] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A method for detecting the error of an electricity meter, characterized in that, include: Obtain the meter numbers of several reference energy meters and several test energy meters; Set the daily freeze time and automatic meter reading time according to the preset requirements; When both the reference energy meter and the test energy meter are operating on the reference power supply, the reference energy meter and the test energy meter are read according to the daily freeze time, the automatic meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain the first test data, and the first test data is converted to obtain the reference meter data. When the test energy meter is under high temperature and high humidity, the reference energy meter and the test energy meter are read according to the daily freezing time, the meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain second test data, and the second test data is converted to obtain test meter data; The daily energy consumption change rate is obtained by calculating the data from the reference meter and the test meter. The daily electricity consumption change rate is compared with the preset electricity meter change rate threshold to obtain the error detection result; The first test data includes a first real-time clock, a first freeze time, and the first day's electricity consumption; the reference meter data includes a first time difference and the change in the first day's electricity consumption. The process involves reading the reference energy meter and the test energy meter based on the daily freeze time, the automatic meter reading time, the meter number of the reference energy meter, and the meter number of the test energy meter to obtain first test data. This first test data is then converted to obtain baseline meter data, including: The reference energy meter and the test energy meter are read based on the daily freeze time, the automatic meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain the first real-time clock, the first freeze time and the first day's electricity consumption; The first real-time clock, the first freeze time, and the first day's electricity consumption are converted to obtain the first time difference and the change in the first day's electricity consumption. The first time difference is the difference between the time of the test electricity meter when the reference power supply is on and the time of the reference electricity meter. The change in the first day's electricity consumption is the difference between the first day's electricity consumption and the first day's electricity consumption obtained from the previous daily freeze time.

2. The error detection method for an electricity meter according to claim 1, characterized in that, The process of reading the reference energy meter and the test energy meter based on the daily freeze time, the automatic meter reading time, the meter number of the reference energy meter, and the meter number of the test energy meter to obtain first test data, and then converting the first test data to obtain baseline meter data, further includes: The reference energy meter number, the test energy meter number, the automatic meter reading time, the reference energy meter time, the test energy meter time, the first time difference, the first freeze time, the energy used on the first day, and the change in energy used on the first day are summarized to generate a benchmark energy meter report.

3. The error detection method for an electricity meter according to claim 2, characterized in that, After summarizing the meter number of the reference energy meter, the meter number of the test energy meter, the automatic meter reading time, the time of the reference energy meter, the time of the test energy meter, the first time difference, the first freeze time, the energy used on the first day, and the change in energy used on the first day to generate the benchmark energy meter report, the method further includes: With the reference power supply on, and after acquiring reference meter data at least twice consecutively, the high temperature and high humidity state is activated to allow the test energy meter to operate under high temperature and high humidity conditions.

4. The error detection method for an electricity meter according to claim 1, characterized in that, The second test data includes a second real-time clock, a second freeze time, and the second daily electricity consumption; the test meter data includes a second time difference and the second daily electricity consumption change. The process involves reading data from the reference energy meter and the test energy meter based on the daily freeze time, the meter reading time, the meter number of the reference energy meter, and the meter number of the test energy meter to obtain second test data. This second test data is then converted to obtain test meter data, including: The reference energy meter and the test energy meter are read based on the daily freeze time, the automatic meter reading time, the meter number of the reference energy meter and the meter number of the test energy meter to obtain the second real-time clock, the second freeze time and the second day's energy consumption; The second real-time clock, the second freeze time, and the second day's electricity consumption are converted to obtain the second time difference and the change in the second day's electricity consumption; wherein, the second time difference is the difference between the time of the reference electricity meter and the time of the test electricity meter under high temperature and high humidity conditions, and the change in the second day's electricity consumption is the difference between the second day's electricity consumption and the second day's electricity consumption obtained from the previous daily freeze time.

5. The error detection method for an electricity meter according to claim 4, characterized in that, The calculation of the daily electricity consumption change rate based on the reference meter data and the test meter data includes: The daily electricity consumption change rate is obtained by dividing the change in electricity consumption on the second day by the change in electricity consumption on the first day.

6. The error detection method for an electricity meter according to claim 5, characterized in that, The process of reading the reference energy meter and the test energy meter based on the daily freeze time, the meter reading time, the meter number of the reference energy meter, and the meter number of the test energy meter to obtain second test data, and then converting the second test data to obtain test meter data, further includes: The daily electricity consumption metering error is obtained from the daily electricity consumption change rate, and the daily electricity consumption metering error is the daily electricity consumption change rate. The meter number of the reference energy meter, the meter number of the test energy meter, the automatic meter reading time, the time of the reference energy meter, the time of the test energy meter, the second time difference, the second freeze time, the second day's energy consumption, the second day's energy consumption change, the daily energy consumption change rate, and the daily energy consumption metering error are summarized to generate a test meter report.

7. The error detection method for an electricity meter according to claim 1, characterized in that, The comparison between the daily electricity consumption change rate and a preset electricity meter change rate threshold yields an error detection result, including: When the daily electricity consumption change rate is less than the electricity meter change rate threshold, the error detection result indicates that the electricity meter has an error. When the daily electricity consumption change rate is greater than the meter change rate threshold, the error detection result indicates that the electricity meter is working normally.

8. The error detection method for an electricity meter according to claim 6, characterized in that, After comparing the daily electricity consumption change rate with a preset electricity meter change rate threshold to obtain the error detection result, the method further includes one of the following: The detection process is interrupted when the time of the reference energy meter is abnormal. The detection process is interrupted when the time of the tested energy meter is abnormal. If the first time difference is abnormal, the detection process is interrupted; If the second time difference is abnormal, the detection process is interrupted. If the daily electricity consumption metering error is abnormal, the detection process will be interrupted. When both the first time difference and the second time difference are abnormal and the abnormal errors are consistent, the reference power supply is determined to be abnormal. If both the change in electrical energy usage on the first day and the change in electrical energy usage on the second day are abnormal and the abnormality error is consistent, the reference power supply is determined to be abnormal.

9. An error detection system for an electricity meter, characterized in that, include: At least one memory; At least one processor; At least one program; The program is stored in the memory, and the processor executes at least one of the programs to achieve the following: The method for detecting the error of an electricity meter as described in any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable signals, which are used to perform: The method for detecting the error of an electricity meter as described in any one of claims 1 to 8.

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