Process and device for monitoring the validity of a speed cue of an aircraft and system for generating a speed cue comprising such a device

摘要

The monitoring device (1) comprises a means (2) for considering the values of static and total pressure, used to determine the speed cue, a means (5) for computing on the basis of these values a coefficient of lift which is representative of the lift of the aircraft, a means (7) for computing on the basis of this coefficient of lift a first value of angle of incidence, a means (9) for determining a second value of angle of incidence, a means (12) for computing the difference between these first and second values of angle of incidence, a means (15) for comparing the absolute value of this difference with a predetermined threshold value, and a means (17) for deducing from this difference whether the speed cue is or is not valid.