Charging control circuit, method and smart home system of single live wire switch

Abstract

The invention discloses a charging control circuit of a single live wire switch, comprising a power taking module, a charging module, an energy storage unit, a microprocessor and a human body sensor. The power taking module is connected with the microprocessor via the charging module and the energy storage unit, and the live wire The power-taking module and the load form a loop with the zero line, and the microprocessor is connected to the power-taking module; the microprocessor is connected to the human body sensor; The unit is charged; the energy storage unit supplies power to the microprocessor; the human body sensor collects the sampling information of whether there is a person within the sensing range, and transmits the collected sampling information to the microprocessor; the microprocessor receives the sampling information and judges according to the sampling information Whether there is a person in the current environment, the power-taking module is controlled to be turned on and off according to the judgment result, so as to control the charging of the energy storage unit. The present invention can prevent the user from seeing the load flicker caused by charging the energy storage unit without frequently replacing the battery.

Description

technical field [0001] The invention relates to the technical field of switches, in particular to a charging control circuit and method for a single live wire switch and a smart home system. Background technique [0002] With the rapid development of information technology and network technology and the change and improvement of people's living concept, home intelligence and home appliance networking have gradually become hot topics. Smart home refers to the connection of various information equipment and residential equipment through the network, so as to build a comfortable, safe and convenient information living space, meet people's needs for living, working, entertainment and communication at home, and provide security, community management and A means for people to know what's going on at home while they're out and about. [0003] With the rapid development of smart home, the single live wire smart switch (only a single live wire in / out, no neutral wire) has become an ...

AI Technical Summary

Problems solved by technology

[0005] Since the single live wire switch is connected in series with the load to leak some small current to achieve power, during the process of taking power, there will be current passing through the load, and the user will see problems with loads such as energy-saving lamps and LED lights flickering or slightly bright , will make the user think that there is a problem with the home appliance, and the user experience is poor

Although there is a solution in the prior art to supply power to the microprocessor through the energy storage unit to solve the flickering or dimming of the load when the lights are turned off, the battery needs to be replaced frequently, and the user experience is not good.

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