Single-phase multi-rate electric energy meter with Bluetooth module

Abstract

The invention relates to a single-phase multi-rate electric energy meter with a Bluetooth module. The single-phase multi-rate electric energy meter is connected between a user load and a single-phasealternating current power supply, and is characterized in that a current sampling module and a voltage sampling module respectively acquire an analog current signal and an analog voltage signal; a metering unit converts the analog current signal and the analog voltage signal into a digital current signal and a digital voltage signal through an internal analog / digital converter; real-time active power is obtained according to the digital current signal and the digital voltage signal, and the active power is converted into an electric energy pulse; a microcontroller determines time data corresponding to the electric energy pulses and performs counting statistics on the electric energy pulses according to the corresponding charging time periods to obtain a pulse statistical value of each charging time period; electric energy data of each charging time period is obtained according to the pulse statistical value of each charging time period and a preset pulse constant; the microcontroller sends the electric energy data to the Bluetooth module; and the Bluetooth module sends the electric energy data to wireless terminal equipment connected with the Bluetooth module.

Description

technical field [0001] The invention relates to the technical field of electric energy measurement, in particular to a single-phase multi-rate electric energy meter with a bluetooth module. Background technique [0002] With the development of science and technology, electric power has become an important part of the development of science and technology. People's basic life is inseparable from electric energy, and electricity consumption metering is an indispensable link. [0003] However, many places still use the traditional meter reading method, that is, door-to-door to check the meter. This method not only wastes a lot of manpower, but also is not conducive to data aggregation and data transmission, and it is easy to cause data loss and confusion, which is not conducive to modernization. The development of electric power industry. [0004] The common communication method of single-phase smart energy meters on the market is to use RS485 line, infrared or low-voltage pow...

AI Technical Summary

Problems solved by technology

The success rate of meter reading in low-voltage power line carrier communication is low, the communication speed is slow, and routing equipment needs to be installed according to the site, the scope of application is small, and the cost is high

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