Thales

Marc Lefort

Bruno Aymeric

Denis Bonnet

Gordon Sanderson

Philippe Chabot

Florence Durieux

The general field of the invention is that of the management of the faults of the viewing devices used on aircraft. An aircraft instrument panel viewing device comprises an electronic assembly, embedded software and a viewing screen. When the viewing device detects a fault arising after a predetermined time of proper operation, the reinitialization method according to the invention executes just the software verification tests without executing the electronic assembly verification tests termed 'safety tests', no specific presentation of fault being displayed on the viewing screen. The duration for which the pilot is deprived of information is thus considerably reduced.

Method of fast reinitialization for instrument panel viewing device

The general field of the invention is that of devices for controlling a computer-based pointer of a computer-based assembly comprising two different computer-based systems, a first secure system comprising at least one first viewing screen and a man-machine interface called CCD controlling the position of the pointer, and a second non-secure system comprising at least one second viewing screen controlled by the same CCD. The control device according to the invention comprises a means called the 'CCD manager' belonging to the first system, ensuring the control of the CCD transmission links and comprising the following functions activated when a displacement instruction is transmitted by the user to the CCD, the pointer occupying a first position in the reference plane, determination of the new position of the pointer, determination of the pointer membership area as a function of this new position, authorization of transfer of the displacement instructions coming from the CCD to the secure system or to the open system corresponding to the previously determined membership area.

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Merignac, France

Marc Lefort