Electric energy meter operation control method

Abstract

The invention discloses an electric energy meter operation control method, an electric energy meter comprises a management core, and the control method comprises the following steps: 1) starting the electric energy meter; 2) judging whether to power on: after the electric energy meter is started, judging whether a power-down signal is received or not by the MCU of the management core, if so, entering a step 3), and if not, entering a step 4); 3) the electric energy meter enters a low-power-consumption state, if a wake-up signal is received, the step 5) is executed, and if the wake-up signal isnot received, the step 2) is executed again; 4) the MCU of the management core operates the version of the operating system, and returns to the step 2) after operating for a certain time; and 5) theMCU of the management core operates the bare computer version and returns to the step 2) after operating for a certain period of time. Compared with the prior art, the method has the advantages that dual systems can be operated through the same MCU kernel, low-speed operation can be achieved during power failure, the working current under the power supply condition of a standby power supply is reduced, and the requirement for low-power-consumption operation is met.

Description

technical field [0001] The invention relates to a power terminal, in particular to a method for controlling the operation of an electric energy meter. Background technique [0002] With the rapid development of the economy, people rely more and more on the automation and intelligence of production and life, and these are inseparable from the demand for electricity. As a part of the grid terminal, the power terminal is also expanding in scale. [0003] Energy meter is a very important power terminal. State Grid Corporation's new generation of power products, such as smart IoT meters and modular terminals, are designed based on the operating system, and all have the ability to wake up the smart meter to read data when the power is off. Requirements, the power supply of the meter for power failure comes from the internal battery or super capacitor. [0004] For example, a Chinese patent with application number 201220297285.6 discloses an ARM-based multi-user smart energy mete...

AI Technical Summary

Problems solved by technology

In order to meet the requirements, that is, to wake up the meter reading function after a power failure, it is necessary to consider configuring a large-capacity super capacitor during design. Although this can meet the requirements, the disadvantages are obvious, such as increasing the cost, increasing the difficulty of device layout, and ultimately reducing the cost performance of the entire meter.

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