Multi-thread dual-core intelligent electric meter time-sharing metering processing method and device

Abstract

The invention discloses a multi-thread dual-core intelligent electric meter time-sharing metering processing method and device. The method comprises the steps of: building a time-sharing metering APP thread, and setting a mutual exclusion amount for the time-sharing metering APP thread; acquiring first real-time electric quantity data of a metering unit, second real-time electric quantity data of a management unit and an electric quantity data difference value of the two; judging whether the electric quantity data difference value is in a normal range; if the electric quantity data difference value is in a normal range, updating cache data of an intelligent electric meter according to a rate time period currently executed by the intelligent electric meter and the electric quantity data difference value, and releasing mutual exclusion; and if the electric quantity data difference value is in an abnormal range, keeping the second real-time electric quantity data unchanged. The time interval mutual exclusion quantity of the metering unit is obtained through using the management unit, corresponding synchronous operation is carried out according to the comparison result of the difference value of the time interval mutual exclusion quantity and a preset threshold value, effective fault tolerance of time-sharing metering of the double-core intelligent electric meter is achieved, and high-frequency, efficient and high-real-time data interaction is guaranteed.

Description

technical field [0001] The invention relates to the technical field of smart electric meter control, in particular to a multi-threaded dual-core smart electric meter time-sharing measurement processing method and device. Background technique [0002] With the implementation of the electric energy IR46 standard, the metering function of the smart meter is required to be independent of other functions. In the full market competition in the future, the multi-rate time-of-use metering strategies formulated by different electricity selling entities are more targeted, diverse and real-time, which is of great significance to the safe, economical and reliable operation of the power grid. However, the current domestic smart meter is designed as an integrated design, that is, the metering function and other functions do not require independent work; this kind of smart meter software system is designed for the main function cycle, and the multi-rate time-sharing metering function is re...

AI Technical Summary

Problems solved by technology

The time-of-use metering of the dual-core smart meter relies on the dual-core SPI bus communication operation. The management core actively requests the metering core to obtain the time-of-use metering power data. The multi-rate time-of-use metering strategy is converted into billable electric energy and uploaded to the main station or provided to the user for electricity query. Therefore, the reliability and real-time performance of communication interaction are extremely demanding. If the electricity metering communication interaction fails due to a fault, it will lead to metering There are errors in the electricity bill, the billing is not accurate enough, and even electricity disputes arise

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