A smart meter power-on load correction method
A calibration method and smart meter technology, applied in the direction of measuring electric variables, instruments, measuring devices, etc., can solve the problems of inaccurate electric energy measurement, non-measurement of electric energy, etc., and achieve correctness assurance, correctness assurance, and sound data recovery mechanism Effect
Active Publication Date: 2022-04-19
江阴长仪集团有限公司
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Problems solved by technology
The commonly used metering module has its own parameter verification function. If it is the default parameter of the metering module or the "checksum" is correct but the parameter is wrong, it will cause inaccurate energy measurement; if the written calibration parameter "checksum" ” error, it will result in non-measurement of electric energy
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[0036] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0037] The present invention is a method for correcting a smart meter when it is powered on and loaded. The correction method includes the following steps:
[0038] S1. Power-on and load calibration parameters processing flow. When the metering module in the smart meter has errors in all backup metering parameters, enable the area default parameters in the ROM of the memory of the smart meter to improve the metering accuracy. The control is within the allowable range of the design, and the process of loading calibration data after power-on is as follows: figure 1 shown;
[0039]S2. Multiple backups and redundant error correction are adopted for the calibr...
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The invention discloses a power-on loading correction method for a smart electric meter, which includes the following steps: processing flow of power-on loading calibration parameters, using multiple backups for calibration parameters, configuring parameters in a smart electric energy meter measurement module, and using reliable data calibration. The whole-process monitoring and management of the operating parameters of the smart energy meter, all the calibration parameters and metering parameter data, regularly use CRC verification comparison and metering module system status detection, when wrong data is found, correct it with the correct data in time. In order to reduce the possibility that the backup of each metering parameter is changed due to continuous interference, the correctness of the operation of the metering module is ensured. The calibration method can judge the legitimacy and correctness of metering parameters during power-on configuration and operation on the basis of ensuring that the hardware has strong anti-interference performance. The control program can be provided with a certain mechanism, which can prevent the metering module from being restored due to power failure of the electric energy meter and communication errors between the microcontroller and the metering module during the running process.
Description
technical field [0001] The invention relates to the technical field of smart meter detection, in particular to a power-on loading correction method for a smart meter. Background technique [0002] The smart energy meter is an important part of the smart grid and the basic support for the realization of the electricity consumption information collection system. Faced with the quality control of such a large number of smart energy meters in operation, the current quality control methods of power companies mainly include arrival quality inspection, installation quality control, operation quality supervision, customer feedback quality tracking, etc. How to effectively control large-scale smart energy meters The quality of the whole life cycle is not only a arduous task for power companies, but also a top priority that all smart energy meter suppliers must actively deal with. [0003] The realization process of smart energy meter products mainly includes three links: technical s...
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IPC IPC(8): G01R35/04G01R35/00
CPCG01R35/04G01R35/005
Inventor 朱国富陈文藻张晓东冯子蛟陶英浩
Owner 江阴长仪集团有限公司