Thomson-csf Sextant

Georges Henri Simon

Pierre Bernas

The present invention relates to the management, on board an aircraft, of the aeronautical digital telecommunications networks ACARS and ATN. It covers a method for automatic choice of the transmission sub-network of the ACARS or ATN networks which is most appropriate for the exchange of digital messages with the ground, taking account of the capabilities of the equipment of the aircraft, of that existing on the ground in the area overflown, of the costs and of the reliabilities of the possible links, and of the preferences of the pilot, of his airline and of the control services. This method consists principally in the creation and updating of a database containing information: costs, performance levels, security/reliability, aircraft configuration, availabilities of the communications sub-networks as well as the stipulations by the pilot, by his airline and by the control services, and in the automatic selection of a communications mode via a sub-network of the ACARS or ATN networks, taking into account an order of preference established on the basis of criteria based on the information contained in the database ( ).

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Wissous, France

Georges Henri Simon