Three-phase prepayment electric energy meter system based on GPRS communication and control method thereof

Abstract

The invention provides a three-phase prepayment electric energy meter system based on GPRS communication and a control method thereof. The system comprises an electric energy meter and a GPRS server, wherein the electric energy meter comprises an electric energy metering module, a GPRS module, a display module, a micro-processing module, a switch control module and a meter power supply; the GPRS module realizes the remote meter-checking and charging functions so that a user pays dues in a power supply center, and the power supply center can recharge the electric energy meter by the GPRS server; the electric energy meter periodically submits states, used electricity quantity and usable electricity quantity, and the display and control modules are used for displaying the states and the electricity quantity, controlling alarms and switching on / off a switch. The method comprises the following steps: a user firstly purchases and then uses the electricity, and a power supply part remotely checks, recharges and controls the three-phase prepayment electric energy meter. The invention realizes the random meter-checking function, the electric energy meter state monitoring function, the random electric energy meter parameter (such as the rate) updating function and eliminates the hidden danger by the user authentication.

Description

technical field [0001] The invention relates to the fields of three-phase electric energy measurement and remote meter reading, in particular to a three-phase prepaid electric energy meter system based on GPRS communication and a control method thereof. Background technique [0002] Three-phase prepaid energy meters have been widely used at present, and its most important technologies include: IC card and RFID technology, three-phase power measurement technology, power management technology, remote meter reading technology, etc. The existing IC card technology has been very maturely applied in the prepaid energy meter, but the IC card technology also has certain security risks, such as electricity theft through the interface, duplication of the IC card, etc. may occur. Power metering technology, at present, mostly uses solid-state technology instead of mechanical and electronic technology. The advantage of doing so is that the accuracy of the electric energy meter is higher ...

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