Single-phase intelligent electrical energy meter with wireless meter reading module

Abstract

The invention discloses a single-phase intelligent electrical energy meter with a wireless meter reading module, which solves the problems that the conventional electrical energy meter cannot settle the electrical energy of bidirectional power supply, remotely read meter or monitor the quality of the electrical energy. The electrical energy meter comprises an electrical energy signal acquisition module, a single-phase three-wire metering unit and a microcontroller connected in turn, wherein the microcontroller calculates forward electrical energy E1, reverse electrical energy E2 and net electrical energy E; and the electrical energy meter also comprises a liquid crystal display (LCD) module, a power supply module, a real time clock (RTC) and backup battery module, a pulse output module, a forward electrical energy storage, a reverse electrical energy storage, a net electrical energy storage and a wireless communication module connected with the microcontroller respectively, wherein the wireless communication module is linked with a remote meter reading device through a wireless communication channel to realize remote meter reading. The electrical energy meter has the following functions of: respective accumulation and metering of forward and reverse time division electrical energy, real-time measurement, load recording, remote meter reading, monitoring and analysis of electrical energy quality, and supply of household intelligent interfaces.

Description

technical field [0001] The present invention relates to an electric energy meter, more specifically to a single-phase intelligent electric energy meter with a wireless meter reading module Background technique [0002] Existing ordinary single-phase energy meters generally only have the following functions: [0003] (1.1) Metering: cumulative metering of forward electric energy. [0004] (1.2) Time-of-use metering: The electric energy meter has 4 rates, 80 daily periods, 4 annual time zones, 5 time periods, and supports weekends and holidays. Each tariff has a separate meter to record electrical energy. Rate schemes can be switched by combination of day type and season type. [0005] (1.3) Real-time measurement: measure current, voltage, frequency and power in real time, and calculate the load. When the load exceeds the set limit, the electric energy meter will give an alarm. [0006] (1.4) Load record: record electric energy, active power, apparent power, voltage, and c...

AI Technical Summary

Problems solved by technology

[0017] Due to the above-mentioned defects in the existing ordinary single-phase electric energy meter, it cannot meet the needs of two-way energy interaction in the smart grid

[0018] In addition, the existing ordinary single-phase electric energy meters generally do not have the function of remote meter reading. Even the electric energy meters with remote meter reading function still use wired transmission, and the wiring is troublesome.

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