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Fault recovery method and device

A fault recovery and fault technology, applied in the field of flight control systems

Active Publication Date: 2020-06-02
西安联飞智能装备研究院有限责任公司
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  • 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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  • Fault recovery method and device

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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] like 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 failur...

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Abstract

The invention discloses a fault recovery method and a device, which are used for solving the problem that when a system bus fault is recovered in the prior art, because each channel is not isolated, the faulted channel is easy to recover to a normal state during recovery operation. The method comprises the following steps: if address instructions of at least two first channels are not acquired ina continuous first set value period, determining that update faults occur in the two channels corresponding to the address instructions; if normal update and check code matching success information ofat least one second channel is collected in the current period, determining the update fault of the second channel as a recoverable fault, wherein the second channel is any one of the two 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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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
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