A household smart prepaid energy meter

Abstract

The invention relates to the field of electric energy meters, in particular to a household intelligent prepayment electric energy meter which is characterized by comprising an electric meter assembly, a standby assembly and an alarming assembly. The electric meter assembly is connected with a first group of household appliances and a second group of household appliances respectively through two branch circuits, and a first intelligent switch is arranged on each of the branch circuit. The electric meter assembly comprises a single-chip microcomputer and an integrated card (IC), wherein a first radio-frequency emission module is arranged on the IC, and a clamping slot opening of the single-chip microcomputer is provided with an automatic screen which is provided with a first radio-frequency receiving module. The standby assembly stores emergency electric energy, is connected with the electric meter assembly through a second intelligent switch, and is connected with the second group of household appliances through a third intelligent switch. The alarming assembly comprises a primary alarming assembly and a secondary alarming assembly, wherein the primary alarming assembly is connected with the electric meter assembly, and the second alarming assembly is connected with the standby assembly. According to the household intelligent prepayment electric energy meter, identification accuracy of the single-chip microcomputer of the electric energy meter on the IC is improved, the fault rate of the electric energy meter is reduced, service life of the household appliances is prolonged, and alarms can be given timely and effectively.

Description

technical field [0001] The invention relates to the field of electric energy meters, in particular to a household intelligent prepaid electric energy meter. Background technique [0002] In recent years, in order to reduce the workload of manual meter reading and implement the collection of electricity charges in advance, prepaid electric energy meters using IC cards as payment media have emerged. However, the alarm function of the energy meter is not perfect, and the user cannot be reminded to recharge the IC card in time. The open bayonet allows cards of the same size as the IC card to be inserted into the microcontroller, resulting in failure of the energy meter, and when the purchased electricity is used up Finally, the working household appliances suddenly lose power, and there is no backup power storage device, which shortens the service life of household appliances, especially high-power refrigerators, washing machines, air conditioners, and rice cookers. Contents o...

AI Technical Summary

Problems solved by technology

However, the alarm function of the energy meter is not perfect, and the user cannot be reminded to recharge the IC card in time. The open bayonet allows cards of the same size as the IC card to be inserted into the microcontroller, resulting in failure of the energy meter, and when the purchased electricity is used up Finally, the working household appliances suddenly lose power, and there is no backup power storage device, which shortens the service life of household appliances, especially high-power refrigerators, washing machines, air conditioners, rice cookers, etc.

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