Calibration system and method for real-time clock calibration of a power management device

The calibration system, consisting of a high-low temperature chamber and a controller, provides a stable calibration environment temperature and time-domain piecewise interpolation compensation, solving the problem of insufficient accuracy in real-time clock calibration of power management equipment and achieving high-precision real-time clock calibration and accurate compensation curves.

CN117289587BActive Publication Date: 2026-06-12JIANGYIN CHANGYI GRP CO LTD
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Patent Information

Application Number
CN202311169206.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-11
Publication Date
2026-06-12
Estimated Expiration
2043-09-11

AI Technical Summary

Technical Problem

The real-time clock calibration of existing power management equipment is not accurate enough and cannot meet the time segmentation and calculation requirements of electricity sales business. In particular, the real-time clock function of the equipment is not reliable enough under different ambient temperatures.

Method used

The calibration system, consisting of a high and low temperature chamber, temperature sensor, daily time calibrator, ambient temperature control device and controller, achieves stable calibration ambient temperature and time-domain segmented interpolation compensation through multi-channel selection device and controller, providing accurate real-time clock calibration.

Benefits of technology

It achieves high-precision real-time clock calibration for power management equipment, improves the reliability of the calibration process and the accuracy of the compensation curve, and meets the time segmentation and calculation requirements of electricity sales business.

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Abstract

The application discloses a calibration system and method for real-time clock calibration of power utilization management equipment, wherein the power utilization management equipment comprises concentrators and electric energy meters in a power utilization information system; a controller in the system is connected with a high-low temperature box, a plurality of first temperature sensors, at least one daily time calibration instrument, an ambient temperature adjusting device, at least one second temperature sensor and a first multi-way selection device; and the controller can provide stable calibration ambient temperature and ambient temperature for the power utilization management equipment and the daily time calibration instrument, effectively ensures the reliability of the calibration process, and provides environmental protection for high-precision calibration of the real-time clock of the power utilization management equipment; by ensuring the stability of the calibration ambient temperature, reliable real-time data can be provided for a compensation curve for time domain segmentation interpolation compensation of the power utilization management equipment, and then the accuracy of the compensation curve for time domain segmentation interpolation compensation can be greatly improved while effectively improving the calibration efficiency of the power utilization management equipment.
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