Outage protector used for embedded computer and realization method thereof

Abstract

The invention discloses an outage protector used for an embedded computer. A power supply input end, a power supply end, a shutdown signal output end and a shutdown detection end are arranged on the outage protector; a power supply switching circuit, an outage detection circuit, a charging circuit, rechargeable batteries, a shutdown circuit and a shutdown success detection circuit are arranged in the outrage protector. The shutdown circuit sends out a shutdown signal in case of outage; and the power supply end is supplied with power by the power supply input end when the power supply is normal, the power supply switching circuit switches to the rechargeable batteries for supplying power to the power supply end when the power supply is shutdown, and the power supply to the power supply end is stopped after shutdown. The invention has benefits as follows: when the computer is in a power-on state and the power supply has an outage suddenly, the outage protector provides the computer with temporary power supply and controls the computer to be shut down normally, thereby avoiding software and hardware damage or data and information loss caused by illegal shutdown due to outage, and effectively protecting the computer from damage in case of sudden outage.

Description

technical field [0001] The invention relates to a power-off protector for computers, in particular to a power-off protector for embedded computers and its realization method. Background technique [0002] At present, with the further development of urban informatization, the application of embedded computers has been greatly promoted. Public service machines, inquiry machines, information publishing machines, advertising machines, etc. all over the streets and alleys in the city are all based on embedded computers. core. It is an indispensable part of the information society and affects the life of modern people. [0003] As we all know, computer equipment must be powered off correctly, otherwise it will cause data loss, damage its key components, and affect the working life. The correct computer shutdown sequence is: enter the shutdown program through the operating system, and then cut off the power of the host computer after shutdown. Cutting off the host power supply d...

AI Technical Summary

Problems solved by technology

However, UPS only serves as a short-term power supply. Before the power is used up, it still needs to be shut down manually, which is not suitable for unattended occasions.

Moreover, the volume of UPS is directly proportional to the power, and the UPS with large power is also large in size and expensive.

[0005] 2. By pre-installing the shutdown software on the computer equipment, it can automatically shut down the system at a specified time, but this method can only shut down at a specified time, and the flexibility is poor. It is powerless in case of an unexpected power failure

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