CN115877311A - Detection method based on ammeter measurement error compensation - Google Patents
Detection method based on ammeter measurement error compensation Download PDFInfo
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- CN115877311A CN115877311A CN202211165929.0A CN202211165929A CN115877311A CN 115877311 A CN115877311 A CN 115877311A CN 202211165929 A CN202211165929 A CN 202211165929A CN 115877311 A CN115877311 A CN 115877311A
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Abstract
The invention discloses a detection method based on ammeter measurement error compensation, which comprises the following steps: s1, calculating a conversion relation between current and temperature and resistance; s2, acquiring an ammeter sample set matrix established by test data with temperature and resistance as independent variables and measurement errors as dependent variables under different working conditions; s3, drawing a curve model according to the ammeter sample set matrix; s4, obtaining the current environment detection temperature, calculating the current error of the ammeter according to the curve model of S3, and calculating a compensation value according to the error; s5, judging whether the error compensation value of the ammeter is larger than a set threshold value or not according to the error compensation value of the ammeter S4, if the error compensation value is larger than the set threshold value, indicating that the current ammeter is an out-of-tolerance ammeter and carrying out the next step, and S6, sending alarm information to remind monitoring center workers to go to the site to carry out detection and adjustment. The invention has the characteristics of simplicity, practicability, reliability and the like, and improves the metering precision of the electric energy meter under the influence of temperature.
Description
Technical Field
The invention relates to the technical field of image processing, in particular to a detection method based on ammeter measurement error compensation.
Background
In the actual operation process of the electric meter, the measurement error mainly comprises a basic error and an additional error, wherein the basic error refers to an error caused by different aspects of design process means, material selection and the like, and the additional error refers to an error caused by the influence of environmental factors such as environmental temperature, secondary wiring and the like. The basic error and the additional error are collectively called as a comprehensive error, and the accuracy of the electric meter measurement can be comprehensively reflected only by the comprehensive error. The detection method based on the ammeter measurement error compensation has the characteristics of simplicity, practicality, reliability and the like, and improves the metering accuracy of the ammeter under the influence of temperature.
Disclosure of Invention
The detection method based on the ammeter measurement error compensation improves the metering precision of the electric energy meter under the influence of temperature.
In order to achieve the purpose, the invention adopts the following technical scheme:
a detection method based on ammeter measurement error compensation comprises the following steps:
s1, calculating a conversion relation between current and temperature and between resistance according to the correlation between the current and the temperature and between the current and the resistance;
s2, acquiring an ammeter sample set matrix established by test data with temperature and resistance as independent variables and measurement errors as dependent variables under different working conditions;
s3, drawing a curve model according to the ammeter sample set matrix;
s4, obtaining the current environment detection temperature, calculating the current error of the ammeter according to the curve model of the S3, and calculating a compensation value according to the error;
s5, judging whether the error compensation value of the ammeter is larger than the set threshold value according to the error compensation value of the ammeter S4, if the error compensation value is larger than the set threshold value, indicating that the current ammeter is an out-of-tolerance ammeter and carrying out the next step,
otherwise, compensating the current ammeter error by using the ammeter error compensation value; judging whether the current ammeter is the last ammeter, if so, ending, otherwise, returning to the previous step;
and S6, sending alarm information to remind monitoring center workers to go to the site for detection, adjustment and repair.
Preferably, the acquiring of the current environment detection temperature specifically includes: and acquiring the ambient temperature by the temperature sensor second by second, and taking the average value of the acquired temperatures for the 5 th time as the current ambient detection temperature.
Preferably, S2 is based on a data acquisition device, the data acquisition device establishes a communication connection with the electric meter through a wireless communication technology, and the information acquisition device is configured to acquire a feature vector set of the electric meter to be detected.
Preferably, S5 is processed by a server, and the server is configured to receive the feature vector set of the to-be-detected electric meter.
Preferably, S6 establishes a communication connection with the server depending on the terminal, and the terminal receives the alarm information sent by the server.
Compared with the prior art, the detection method based on the ammeter measurement error compensation provided by the invention has the advantages that a curve model of the metering error of the ammeter element affected by the temperature change is generated according to the obtained curve coefficient, the current environment detection temperature is obtained, and after the difference between the current environment detection temperature and the last environment detection temperature is judged to exceed the preset temperature difference, the difference is input into the metering error curve model to obtain the current metering error of the ammeter; the invention provides a method for compensating the metering error of an electric energy meter under the influence of temperature, which has the characteristics of simplicity, practicability, reliability and the like and improves the metering precision of the electric energy meter under the influence of temperature.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Referring to fig. 1, the detection method based on electric meter measurement error compensation provided by the invention comprises the following steps:
s1, calculating a conversion relation between current and temperature and between resistance according to the relevance between the current and the temperature and between the current and the resistance;
s2, acquiring an ammeter sample set matrix established by test data with temperature and resistance as independent variables and measurement errors as dependent variables under different working conditions; s2, according to data acquisition equipment, the data acquisition equipment establishes communication connection with the ammeter through a wireless communication technology, and the information acquisition equipment is used for acquiring a feature vector set of the ammeter to be detected;
s3, drawing a curve model according to the ammeter sample set matrix;
s4, obtaining the current environment detection temperature, calculating the current error of the ammeter according to the curve model of S3, and calculating a compensation value according to the error; the acquiring of the current environment detection temperature specifically comprises the following steps: acquiring the ambient temperature by a temperature sensor one second by one second, and taking the average value of the acquired 5-time temperatures as the current ambient detection temperature;
s5, judging whether the error compensation value of the ammeter is larger than a set threshold value or not according to the error compensation value of the ammeter S4, if the error compensation value is larger than the set threshold value, indicating that the current ammeter is an out-of-tolerance ammeter and carrying out the next step,
otherwise, compensating the current ammeter error by using the ammeter error compensation value; judging whether the current ammeter is the last ammeter, if so, ending, otherwise, returning to the previous step;
s5, processing according to a server, wherein the server is used for receiving a feature vector set of the electric meter to be detected;
and S6, sending alarm information to remind monitoring center workers to go to the site for detection, adjustment and repair, wherein the S6 relies on the terminal to establish communication connection with the server, and the terminal receives the alarm information sent by the server.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. A detection method based on ammeter measurement error compensation is characterized in that: the method comprises the following steps:
s1, calculating a conversion relation between current and temperature and between resistance according to the relevance between the current and the temperature and between the current and the resistance;
s2, acquiring an ammeter sample set matrix established by test data with temperature and resistance as independent variables and measurement errors as dependent variables under different working conditions;
s3, drawing a curve model according to an ammeter sample set matrix;
s4, obtaining the current environment detection temperature, calculating the current error of the ammeter according to the curve model of S3, and calculating a compensation value according to the error;
s5, judging whether the error compensation value of the ammeter is larger than the set threshold value according to the error compensation value of the ammeter S4, if the error compensation value is larger than the set threshold value, indicating that the current ammeter is an out-of-tolerance ammeter and carrying out the next step,
otherwise, compensating the current ammeter error by using the ammeter error compensation value; judging whether the current ammeter is the last ammeter, if so, ending, otherwise, returning to the previous step;
and S6, sending alarm information to remind monitoring center workers to go to the site for detection, adjustment and repair.
2. The method as claimed in claim 1, wherein the step of obtaining the current environment detection temperature specifically includes: and acquiring the ambient temperature by the temperature sensor second by second, and taking the average value of the acquired 5 times of temperatures as the current ambient detection temperature.
3. The detection method based on the electric meter measurement error compensation according to claim 1, wherein S2 is based on a data acquisition device, the data acquisition device establishes a communication connection with the electric meter through a wireless communication technology, and the information acquisition device is used for acquiring a feature vector set of the electric meter to be detected.
4. The detection method based on the electric meter measurement error compensation according to claim 1, wherein the step S5 is processed by a server, and the server is used for receiving the feature vector set of the electric meter to be detected.
5. The detection method based on electric meter measurement error compensation according to claim 1, wherein said S6 is implemented by establishing a communication connection between said terminal and a server, and said terminal receives an alarm message sent by the server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211165929.0A CN115877311A (en) | 2022-09-23 | 2022-09-23 | Detection method based on ammeter measurement error compensation |
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| CN202211165929.0A CN115877311A (en) | 2022-09-23 | 2022-09-23 | Detection method based on ammeter measurement error compensation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116704737A (en) * | 2023-08-07 | 2023-09-05 | 青岛高科通信股份有限公司 | Electronic electric energy meter reading acquisition method, medium and device in alpine region |
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- 2022-09-23 CN CN202211165929.0A patent/CN115877311A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116704737A (en) * | 2023-08-07 | 2023-09-05 | 青岛高科通信股份有限公司 | Electronic electric energy meter reading acquisition method, medium and device in alpine region |
| CN116704737B (en) * | 2023-08-07 | 2023-10-17 | 青岛高科通信股份有限公司 | Electronic electric energy meter reading acquisition method, medium and device in alpine region |
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