Secure checking of the exclusivity of an active/passive...

H - Electricity – 04 – L

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H04L 1/22 (2006.01)

Patent

CA 2754967

The invention relates to a method and to a device for securely checking the exclusivity of a binary active/passive state of redundant units, wherein said device includes: at least one exclusive communication device of said state capable of transmitting an exclusive signal relating to the exclusivity of said state to at least one checking means integrated within each of said units, said checking means being capable of checking and confirming the exclusivity of said state, characterized in that: each of said redundant units in the active state is capable of transmitting to said exclusive communication device said identity signal; the exclusive communication device is capable of receiving at least one of said identity signals from said redundant units; the exclusive communication signal is capable of producing said exclusive signal from at least one of said identity signals; and the checking means are capable of determining the exclusivity of the state of said unit by reading said exclusive signal.

Contrôle en sécurité de l'exclusivité d'un état actif/passif d'unités de traitements. La présente invention décrit une méthode et dispositif de contrôle en sécurité d'une exclusivité d'un état binaire, actif/passif, d'unités redondantes, ledit dispositif comprenant: - au moins un dispositif de communication exclusif dudit état apte à transmettre à au moins un moyen de contrôle intégré à chacune desdites unités un signal exclusif relatif à l'exclusivité dudit état, - ledit moyen de contrôle apte à contrôler et à confirmer l'exclusivité dudit état, et étant caractérisé en ce que: - chacune desdites unités redondantes dans l'état actif est apte à transmettre audit dispositif de communication exclusif ledit signal identitaire, - ledit dispositif de communication exclusif est apte à recevoir au moins un desdits signaux identitaires provenant desdites unités redondantes, - ledit dispositif de communication exclusif est apte à produire ledit signal exclusif à partir d'au moins un desdits signaux identitaires, - ledit moyen de contrôle est apte à déterminer l'exclusivité de l'état de ladite unité à partir d'une lecture dudit signal exclusif.

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