Clock correction method of smart electric energy meter and related device
By introducing an operation and maintenance module and a Bluetooth module into the smart energy meter, combined with HPLC and interrupt capture functions, efficient and reliable clock calibration of the energy meter is achieved, solving the problems of low efficiency and high cost in existing technologies.
CN116684031BActive Publication Date: 2026-07-21GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
- Filing Date
- 2023-06-30
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Existing electricity meter clock malfunctions, leading to inaccurate billing times. Current time calibration methods are inefficient and costly.
Method used
The smart energy meter is equipped with an operation and maintenance module and a Bluetooth module. It receives the broadcast clock through the HPLC module for preliminary calibration. If the broadcast fails, it uses the Bluetooth module to perform autonomous time calibration and combines the interrupt capture function to correct the clock deviation.
Benefits of technology
It enables efficient, reliable, and flexible calibration of electricity meter clocks, reducing the burden on the main station and encryption server and lowering costs.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116684031B_ABST
Abstract
The application discloses a clock correction method of a smart electric energy meter and related devices, comprising: when a maintenance module is powered on, collecting clock information of the smart electric energy meter and comparing and correcting with the maintenance module clock, so that the smart electric energy meter and the maintenance module clock are synchronized; when the maintenance module receives the broadcast clock of the HPLC module, the broadcast clock is compared and analyzed with the self clock of the maintenance module, the corrected clock is obtained, so that the smart electric energy meter is corrected according to the corrected clock; when the maintenance module does not receive the broadcast clock at the preset time, the state is analyzed according to the smart electric energy meter operating parameter, the Bluetooth module of other smart electric energy meters is triggered according to the state analysis result, so that a plurality of Bluetooth modules broadcast the time correction information; the Bluetooth module of the maintenance module receives a plurality of time correction information, and the clock of the smart electric energy meter is corrected according to the time correction information. Thus, the technical problems of high cost and low efficiency in the prior art are solved.
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