Power supply management method, device and circuit of vehicle-mounted intelligent device

Abstract

The invention provides a power supply management method of a vehicle-mounted intelligent device. The method comprises a state conversion mechanism, a lithium battery charging management mechanism, a power supply adaptation selection mechanism and a power supply early warning function. The invention further provides a power supply management device of the vehicle-mounted intelligent device. The power supply management device comprises a power supply, an MCU circuit and an intelligent device core, and the MCU circuit is composed of a single-chip microcomputer and a peripheral circuit of the single-chip microcomputer and used for completing detection of the external power supply state, power supply management and charging management, communicating with a central processing unit and reporting the power supply state. The core of the intelligent device is the central processing unit and the peripheral circuit thereof and is used for controlling a 4G module, a WIFI module and an external camera, and the 4G module is used for uploading the working state and working data of the device to a remote server. The invention further provides a power supply management circuit of the vehicle-mounted intelligent device. The power supply management circuit comprises a power supply conversion circuit and a lithium battery charging control circuit.

Description

technical field [0001] The invention relates to the field of power supply control of vehicle-mounted intelligent equipment, in particular to a power management method, equipment and circuit of vehicle-mounted intelligent equipment. Background technique [0002] With the development of the automobile industry, on-board smart devices are widely used. The existing on-board devices are powered by the car's own battery during operation, which consumes a lot of power and has low efficiency. After the battery loses power, it is not charged in time, and the battery life is short. [0003] The capacity of the battery that comes with the car is limited. The current use of more and more on-board equipment has caused the battery to often appear in a power-feed state, making the car unable to start normally, and greatly shortening the service life of the battery and accelerating the capacity decay of the battery. [0004] Traditional on-board smart devices do not have a good power manage...

AI Technical Summary

Problems solved by technology

[0002] With the development of the automobile industry, on-board smart devices are widely used. The existing on-board devices are powered by the car's own battery during operation, which consumes a lot of power and has low efficiency. After the battery loses power, it is not charged in time and the battery life is short.

[0003] The capacity of the battery that comes with the car is limited. The current use of more and more on-board equipment has caused the battery to often appear in a power-feed state, making the car unable to start normally, and greatly shortening the service life of the battery and accelerating the capacity decay of the battery.

[0004] Traditional on-board smart devices do not have a good power management strategy, resulting in high power consumption and low efficiency. Therefore, it is necessary to propose a new power management method for on-board smart devices to solve the above problems

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