Method for detecting and solving anomaly of metering chips

A metering chip and anomaly detection technology, which is applied in the field of anomaly detection and resolution of metering chips, can solve problems affecting normal metering of electric energy, too large metering values, crashes, etc., so as to avoid too large or too small metering values ​​or no metering at all , to ensure the effect of normal measurement

Active Publication Date: 2015-04-08
NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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AI Technical Summary

Problems solved by technology

When the metering chip receives external interference, it will cause the metering chip to reset, crash and other problems, and then the metering value will be too large or too small for a long time or not metered at all, which will affect the normal metering of electric energy

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with specific examples.

[0022] An abnormality detection and solution method for a metering chip of the present invention comprises the following steps:

[0023] (1) When the electric energy meter is powered on, the management chip MCU writes the standard parameters into the metering chip. The standard parameters are fixed parameters of the electric energy meter, which have been obtained through experiments;

[0024] (2) Time period N starts counting, usually one minute;

[0025] (3) The metering chip detects the following points:

[0026] a. Detect the frequency of the grid. If the grid frequency detected by the metering chip detects a certain value L that deviates from the standard frequency for M consecutive times, the execution step will determine that the metering chip is abnormal, and the management chip MCU will initialize the metering chip; otherwise, execute the step (d); if the grid freque...

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Abstract

The invention discloses a method for detecting and solving anomaly of metering chips. The method includes steps of (1), powering up the metering chips and writing standard parameters into the metering chips; (2), keeping time periods N; (3), carrying out detection, to be more specific, a, detecting the frequencies of power grids, b, detecting voltages of the power grids, and c, detecting power; (4), enabling a chip managing MCU (micro-control unit) to read parameters of the metering chips when the time periods N are up, returning to the step (2) if the parameters are consistent with the standard parameters, enabling the chip managing MCU to initialize the metering chips if the parameters are not consistent with the standard parameters and returning to the step (2). The method has the advantages that the anomaly of the metering chips can be detected by the aid of the method, the metering chips can be recovered by the aid of the method, and accordingly the reliability and the stability of meters can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of electric energy meters, in particular to an abnormality detection and solution method for a metering chip. Background technique [0002] The metering chip is a high-precision electric energy meter module. When the metering chip receives external interference, it will cause problems such as reset and crash of the metering chip, and then the metering value will be too large or too small for a long time or not metered at all, which will affect the normal metering of electric energy. And this failure can be repaired by software processing. Therefore, based on the above reasons, there is an urgent need for a measurement chip abnormality detection and solution method, which can detect the measurement chip abnormality and can recover, thereby effectively improving the reliability and stability of the meter to solve the above problems. Contents of the invention [0003] The technical problem to be solved by t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/04
Inventor 郑坚江杜小涛章跃平程雪莉
Owner NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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