Method and device for monitoring avionics systems connected...

G - Physics – 06 – F

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G06F 11/07 (2006.01)

Patent

CA 2688331

The invention relates to a method and a device for monitoring avionics systems connected to a shared medium. A preliminary phase is aimed at determining the conditions of activation of each alarm of each avionics system connected to the communication medium. These conditions are related to each avionics system and to the state of the communication medium. The monitoring phase comprises a step of determining the state of the elements of the communication medium and a step (455) of evaluating an indicator of the state of the communication medium on the basis of the state of the elements of the communication medium and on the basis of a predetermined formal modelling of the communication streams of the communication medium. An alarm is selected and activated (470) depending on the evaluated state of the communication medium and depending on a predetermined modelling of the consequences of the evaluated state of the communication medium on the operation of the avionics systems.

L'invention consiste en un procédé et un dispositif de surveillance de systèmes avioniques reliés à un média partagé. Une phase préliminaire a pour objet de déterminer les conditions d'activation de chaque alarme de chaque système avionique relié au média de communication. Ces conditions sont liées à chaque système avionique et à l'état du média de communication. La phase de surveillance comprend une étape de détermination de l'état des éléments du média de communication et une étape d'évaluation (455) d'un indicateur d'état du média de communication à partir de l'état des éléments du média de communication et à partir d'une modélisation formelle prédéterminée des flux de communication du média de communication. Une alarme est sélectionnée et activée (470) selon l'état évalué du média de communication et selon une modélisation prédéterminée des conséquences de l'état évalué du média de communication sur le fonctionnement des systèmes avioniques.

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