Device for determining location information, inertial primary references and anemo-barometric data consolidated for an aircraft, comprising:
- a chain for determining location information comprising;
- means for measuring radionavigation data;
- suitable means for consolidating the measured radionavigation data;
- suitable means for computing aircraft position parameters from the consolidated radionavigation data;
- suitable means for consolidating the computed position parameters;
- a chain for determining inertial primary references comprising:
- means for measuring inertial data indicating the movement of the aircraft relative to a terrestrial coordinate system;
- suitable means for consolidating the measured inertial data;
- suitable means for computing inertial reference parameters of the aircraft from the consolidated inertial data;
- suitable means for consolidating the computed inertial reference parameters;
- a chain for determining anemo-barometric data comprising:
- means for measuring anemo-barometric data indicating the movement of the aircraft relative to the air;
- suitable means for consolidating the measured anemo-barometric data;
- suitable means for computing anemo-barometric reference parameters of the aircraft from the consolidated anemo-barometric data;
- suitable means for consolidating the computed anemometric reference parameters;
- in addition, the suitable means for consolidating the data comprise a plurality of consolidation chains each of the consolidation chains being associated with an index and comprising:
- a computation means, linked to all of said measuring means of the determination chain to which the suitable means for consolidating the data belong, said computation means comparing the measurements of said measurement means and making it possible to detect malfunctioning measurement means;
- an ordered storage means for storing the results of the computation of the computation means of the other consolidation chains ranking the results in ascending order of the indices associated with the consolidation chains, from i+1 to n, and from 1 to i−1, and eliminating the results of the computations of the consolidation chains for which the measurement means are malfunctioning;
- a first comparison means, performing a comparison between the result of a computation means and the first result of the ordered storage means storing the computation results of the other computation means and making it possible to detect malfunctioning computation means;
- an ordered storage means storing the results of the comparators ordering the results of the comparators in descending order of the indices associated with the consolidation chains, from i−1 to 1, and from n to i+1, and eliminating the results of the first comparisons of the consolidation chains for which the computation means are malfunctioning;
- and
- a second comparison means, making it possible to compare the result of a first comparison means with the result of one of the other first comparison means, making it possible to detect malfunctioning first comparison means and making it possible to shutdown the consolidation chains for which the first comparison means are malfunctioning.