Multi-power supply device of embedded equipment, and intelligent switching method of multi-power supply device

Abstract

The invention discloses a multi-power supply device of embedded equipment, and an intelligent switching method of the multi-power supply device. Three power supplies, namely a solar panel, an electric supply and a storage battery are used to supply power; whether sunshine is sufficient in an environment where the solar panel locates is detected by a light-sensitive circuit; whether a voltage of each power supply is normal is detected by a voltage detection circuit; whether the electric supply and solar energies are in abnormal power supply states are detected by a branch power supply state detection circuit; an electrical quantity of the storage battery is monitored in real time by an electrical quantity detection circuit; a control signal is connected to coils of a relay by a drive circuit so as to control on and off of each power supply branch; an MCU is used to control charging speed and accuracy to the storage battery; an LCD display screen is used to display related information and real-time alarm information of the current power supply; and a GSM module is used to send a fault short message to maintenance personnel. The multi-power supply device of the embedded equipment, and the intelligent switching method of the multi-power supply device disclosed by the invention can realize seamlessly intelligent switching of the power supplies, as well as intelligent management and control over charging and discharging of the storage battery, thereby increasing power supply reliability of outdoor unattended embedded equipment.

Description

technical field [0001] The invention discloses a multi-power supply device for embedded equipment and an intelligent switching method thereof, in particular to a multi-power supply device composed of solar panels, commercial power and storage batteries, and relates to the technical field of power supply control for embedded equipment. Background technique [0002] For some important embedded devices for outdoor use, unattended real-time information collection or real-time control, the reliability of its power supply is very important. If the power supply is suddenly interrupted, it is very easy to cause the loss of important information or cause the entire control system to fail. collapse, causing irreparable damage. Using multiple power supplies can greatly improve the reliability of the power supply for embedded devices. In addition, for some outdoor embedded devices that are not accessible by mains electricity, it is a better solution to use a power supply with solar pan...

AI Technical Summary

Problems solved by technology

In the existing technical means, the power supply device for embedded equipment often has a single type of power supply, most of which are directly powered by commercial power after stepping down; there are also some equipment that use solar power as power supply, but their choice of power supply And switching lacks corresponding intelligent control means

At the same time, the existing technology lacks real-time monitoring means for embedded equipment power supply devices, and it is impossible to detect and solve problems in advance through detection and monitoring in a timely manner.

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