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A fault recovery method and device

A fault recovery and fault technology, applied in non-redundancy-based fault handling, detection of faulty computer hardware, instruments, etc.

Active Publication Date: 2021-12-14
西安联飞智能装备研究院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a fault recovery method and device, which is used to solve the problem that in the prior art, when recovering from a system bus fault, it is easy to restore the faulty channel to the normal state during the recovery operation due to the lack of isolation for each channel

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Embodiment Construction

[0044] 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 making creative efforts belong to the protection scope of the present invention.

[0045] figure 1 It exemplarily shows a schematic flowchart of a fault recovery method provided by an embodiment of the present invention, and the method can be applied at least to a flight control system.

[0046] Such as figure 1 As shown, the method mainly includes the following steps:

[0047] Step 101, if at least two address commands of the first channel are not collected within the first set value consecutive cycles, it is determined that an update fai...

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Abstract

The invention discloses a fault recovery method and device, which are used to solve the problem that in the prior art, when recovering from a system bus fault, it is easy to restore the faulty channel to a normal state during the recovery operation due to the lack of isolation of each channel. The method includes: if at least two address commands of the first channel are not collected within the first set value consecutive cycles, determining that update failures occur in the two channels corresponding to the address commands; if within the current cycle Collecting normal update and verification code matching success information of at least one of the second channels, and determining the update failure of the second channel as a recoverable failure; wherein, the second channel is two of the Either of the first channels.

Description

technical field [0001] The present invention relates to the technical field of flight control systems, and in particular to a fault recovery method and device. Background technique [0002] The recovery of system bus failure is used to restore some special bus cross-linking signals to the normal state from the failure caused by communication loss or out of range, such as measurement and control data link, radio altitude, etc. [0003] The recovery of existing system bus failures is usually manual recovery, or the failures that do not want to be recovered are recovered together in the process of automatic recovery. When the system bus fault is restored, the faulty channel is not effectively isolated. Therefore, when the signal collected by the restored faulty channel enters the voting surface of the system, it will adversely affect the selection of the signal voting value. Ultimately, it may cause the system to send wrong signal values ​​to the controller for subsequent calc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/07G06F11/22
CPCG06F11/0793G06F11/221
Inventor 张翔王琦宋乐童燕梁阿迎
Owner 西安联飞智能装备研究院有限责任公司