Power failure protection method and device for industrial control firewall
A power failure protection and firewall technology, applied in the field of industrial control firewall power failure protection methods and devices, can solve problems such as file system damage of storage devices, and achieve the effect of providing stability
Inactive Publication Date: 2022-04-15
北京威努特技术有限公司
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Problems solved by technology
[0006] The above two schemes reduce the probability of sudden power failure device storage device file system damage by reducing the writing time of the storage device. The file system of the storage device is damaged. If the file system of the storage device is damaged, the storage device needs to be reformatted, and the entire firewall needs to be returned to the factory for repair.
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Embodiment 1
[0036] Such as figure 1 As shown, Embodiment 1 of the present application provides a power-failure protection device for an industrial control firewall, which includes three independent storage devices, specifically one main storage device and two configuration storage devices. The main storage device is used to store the operating system and application software. No write operation is performed during operation, which can ensure that the operating system and application software programs will not be damaged due to power failure. The configuration files are stored in two independent memories A and B respectively. Such as figure 2 As shown, the configuration storage device A and the configuration storage device B are mutual backups, and when a data error occurs in one of them due to a power failure and restart, the correct data of the other is overwritten and restored. Preferably, the configuration storage device A is used as the main configuration storage device. The order o...
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The invention discloses a power failure protection method and device for an industrial control firewall, and relates to the technical field of industrial control safety. The device comprises a main storage device and two independent configuration storage devices. The main storage device is used for storing an operating system and application software, and does not perform write operation during operation; the configuration storage device A and the configuration storage device B are both used for storing configuration files, the configuration storage device A and the configuration storage device B are backups for each other, and when one of the configuration storage devices generates data errors due to power-off restart, correct data of the other configuration storage device is used for coverage recovery. By adopting a software and hardware combination mode, the problem that normal work cannot be carried out due to configuration loss caused by damage of an industrial control firewall storage device file system due to abnormal power failure is solved, the device automatically returns to a normal working state, and the stability of the device is improved.
Description
technical field [0001] The invention relates to the technical field of industrial control security, in particular to a power-down protection method and device for an industrial control firewall. Background technique [0002] As the security protection equipment of the industrial site, the industrial control firewall's own robustness is very important. At present, industrial control firewalls generally use EMMC as storage devices in hardware, mainly used to store configuration information. If the device encounters a sudden power failure while updating or modifying configuration information, the file system on the EMMC storage may be damaged, resulting in the failure to read the configuration information normally after restarting. Generally, the use of the storage device is restored by erasing and reformatting, but the original data cannot be retained. [0003] The two most commonly used methods to reduce the probability of damage are as follows: [0004] 1. Switch to batch...
Claims
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Login to View More IPC IPC(8): G06F11/14G06F21/57G06F21/64
Inventor 刘长辉冯全宝
Owner 北京威努特技术有限公司