Electricity consumption information acquisition system clock management method and device

Abstract

The invention discloses an electricity consumption information acquisition system clock management method and device. The method comprises an electric energy meter clock time checking step, wherein the electric energy meter clock time checking step comprises the specific steps of S1, enabling an electricity consumption information acquisition system to regularly obtain a clock of each electric energy meter in an area for carrying out time checking, and searching the electric energy meters, the clock errors of which exceed a preset range, so as to obtain all the clock overproof electric energymeters; S2, judging a clock error magnitude of each searched electric energy meter with overproof clock, if the clock error magnitude is smaller than a preset error threshold, turning to execute the step S3, and otherwise, turning to execute the step S4; S3, generating a broadcast time checking message through a concentrator so as to carry out broadcast time checking on a target electric energy meter with overproof clock; and S4, reporting an electric energy meter clock overproof event to a master station so that the master station carries out single-meter time checking on the target electricenergy meter with overproof clock. The method and device have the advantages of being simple in realization and low in cost, realizing the intelligent management for the electric energy meter clocks,and being high in clock correctness and management efficiency.

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

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