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Power failure protection device

A technology of power-down protection and power-down detection module, which is applied in data processing power supply, electrical digital data processing, and response error generation, etc. It can solve the problem of short power supply, poor reliability of power-down protection scheme, and insufficient time data for data protection. protection and other issues, to achieve the effect of improving reliability and continuous and stable action flag signal

Inactive Publication Date: 2019-12-20
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since power-off events often occur suddenly and the process from power-off to complete power failure is very short, there are uncontrollable factors in data protection during power-off by pure software means and there may not be enough time for data protection, resulting in Poor reliability of existing power-down protection schemes

Method used

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] The embodiment of the present invention discloses a power failure protection device, please refer to figure 1 , figure 1 A schematic structural diagram of a first preferred embodiment of a power-down protection device provided by the present invention; specifically, the device includes a power-down detection module 1, a flag bit circuit 2, and a control module 3, and the control module 3 and The power-down detection modules 1 are all connected to the power ...

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Abstract

The invention discloses a power failure protection device. The device comprises a power failure detection module, a flag bit circuit and a control module. The control module is used for upgrading andupdating the software data, software backup data corresponding to the software data being stored in the backup storage area; a power failure detection module used for detecting the power supply stateof the power supply, a first state signal being generated when abnormal power supply of the power supply is detected; a zone bit circuit used for setting the zone bit circuit to be in an action statewhen receiving the first state signal transmitted by the power failure detection module and generating an action zone bit signal. When the control module is normally powered on through the power supply and is in an initialization stage, the control module is further used for controlling the zone bit circuit to be in a reset state if receiving an action zone bit signal transmitted by the zone bit circuit, and software backup data is written into a storage area of the software data in a covering mode. The reliability of power-down protection can be improved, and it is ensured that the equipmentcan normally start software after power supply is recovered.

Description

technical field [0001] The invention relates to the technical field of power failure protection, in particular to a power failure protection device. Background technique [0002] When the user sets the software of the device to upgrade and update, such as the software update of the router, there may be a sudden power failure, poor power connection, or user misuse, which may lead to abnormal power failure of the device, resulting in an unexpected interruption of the software update. Since the software update is to erase and rewrite the software data, if the update is accidentally interrupted, the data will be lost, which will cause the device's software to start abnormally. [0003] At present, the power-down protection scheme for software update usually adopts pure software means to perform data protection when power-off occurs, such as canceling the software update and restoring the original data. [0004] However, since power-off events often occur suddenly and the proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F1/30
CPCG06F11/1433G06F11/1441G06F11/1451G06F1/30
Inventor 柯俊生
Owner TP-LINK
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