A clock management method and device for an electricity consumption information collection system

Abstract

The invention discloses a method and device for clock management of an electricity consumption information collection system, including a time synchronization step of an electric energy meter clock. The specific steps of the time synchronization step of the electric energy meter clock include: S1. The clock of the table is time-aligned, find out the energy meters whose clock error exceeds the preset range, and obtain all clock out-of-tolerance watt-hour meters; Poor threshold, go to execution step S3, otherwise go to execution step S4; S3. generate broadcast synchronization message by the concentrator to broadcast time synchronization to the target clock out-of-tolerance watt-hour meter; S4. report the watt-hour meter clock out-of-tolerance event to the master station, the master station performs single-meter time synchronization on the target clock out-of-tolerance electric energy meter. The invention has the advantages of simple realization method, low cost, intelligent management of the electric energy meter clock, high clock accuracy and management efficiency, and the like.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a clock management method and device for an electricity consumption information collection system. Background technique [0002] During the operation of the electric energy meter, due to insufficient battery power or power outages, etc., the timing stops after a power outage, which will cause the clock to be out of tolerance. During the long-term operation of the smart meter, the clock deviation of the electric energy meter accounts for the largest proportion of various faults. , and the clock of the electric energy meter is of great significance for the accurate measurement of time-segmented electricity, the accurate collection of daily frozen electricity, the time accuracy of various event records, and the effectiveness of remote fee control. important factor. Therefore, it is of great significance for the control and management of the energy meter clock. [0003] At pr...

AI Technical Summary

Problems solved by technology

[0003] At present, for the clock monitoring of electric energy meters, the master station completes a round of clock testing of all running electric energy meters at a certain interval. Larger clock out-of-tolerance electric energy meters form abnormal events, and the clock out-of-tolerance electric energy meters are uniformly included in the abnormal management process of the metering device for time synchronization. Clock out-of-tolerance electric energy meters are usually manually corrected, such as manual point-to-point broadcasting Time synchronization or manual broadcast address broadcast time synchronization, but the manual time calibration operation is time-consuming and laborious, and the degree of intelligence is low. Manual proofreading is also prone to errors, and the clock control accuracy and real-time performance are poor

Images