Control circuit capable of realizing low power consumption

Abstract

A control circuit capable of realizing low power consumption comprises a communication module, a peripheral control circuit and a battery, the battery is electrically connected with the peripheral control circuit, the peripheral control circuit is electrically connected with the communication module, and the communication module is externally connected with an antenna. The peripheral control circuit comprises a switch element, a monostable circuit, a gate circuit and a level conversion circuit which are electrically connected in sequence, the monostable circuit is used for receiving and converting edge signals sent by the switch element and sending the edge signals to the gate circuit, and the gate circuit combines negative pulse signals and outputs the combined negative pulse signals to the level conversion circuit; and the level conversion circuit transmits the signal to the communication module and awakens the communication module. In the circuit composition, under the condition that an MCU is not used, the communication module is controlled by the peripheral control circuit to wake up and meter, the remote meter reading function is achieved, the cost is saved, the circuit is simple, the reliability is improved, and the average power consumption of the communication module is also reduced.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a control circuit for realizing low power consumption. Background technique [0002] For a long time, in order to realize remote meter reading of smart water meters and gas meters, a control circuit composed of a communication module and a microcontroller (Microcontroller Unit, MCU) has been generally used, and the MCU is used to collect flow pulses and control the communication module. Wake up after power-on to upload data, so that the communication module cannot enter the sleep mode; this kind of composition scheme with MCU control communication module, due to the high cost of the MCU and the need for programming design, the cost of the entire scheme is high, and because of this scheme A large number of components and a complex structure lead to lower overall reliability of the circuit; therefore, it is urgent to provide a circuit with low cost, low power consumption and ...

AI Technical Summary

Problems solved by technology

[0002] For a long time, in order to realize remote meter reading of smart water meters and gas meters, a control circuit composed of a communication module and a microcontroller (Microcontroller Unit, MCU) has been generally used, and the MCU is used to collect flow pulses and control the communication module. Wake up after power-on to upload data, so that the communication module cannot enter the sleep mode; this kind of composition scheme with MCU control communication module, due to the high cost of the MCU and the need for programming design, the cost of the entire scheme is high, and because of this scheme There are many devices and complex structures, which lead to lower overall reliability of the circuit; therefore, it is urgent to provide a circuit with low cost, low power consumption and simple device structure.

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