Method and device for monitoring the validity of at least...

Details Method and device for monitoring the validity of at least... Method and device for monitoring the validity of at least...

2004-07-06

2008-08-19

Frejd, Russell (Department: 2128)

Data processing: structural design, modeling, simulation, and em

Modeling by mathematical expression

C701S008000, C700S052000

Reexamination Certificate

active

07415396

ABSTRACT:
A method and device for monitoring the validity of a parameter calculated by an anemometric unit of an aircraft may employ a first section for taking into account n first data, each dependent on the parameter being monitored and n being greater than or equal to 1. A second section takes into account p second data that each depends on a value obtained from a data source external to the anemometric unit, where P is greater than or equal to 2. A calculator calculates, for each of the second data, a difference between this second datum and a first datum of the same type. A comparator compares the absolute value of each of the calculated differences with a threshold value. A deducing section deduces from the comparisons that the monitored parameter is invalid if the absolute values of two of the various differences are greater than the corresponding threshold values.

REFERENCES:
patent: 3851157 (1974-11-01), Ellis
patent: 4785403 (1988-11-01), Kuhlberg
patent: 5648604 (1997-07-01), Morbieu
patent: 6285298 (2001-09-01), Gordon
patent: 6993419 (2006-01-01), D'Ouince et al.
patent: 2004/0111193 (2004-06-01), D'Ouince et al.
patent: 0244344 (1987-11-01), None
Preliminary Search Report dated Apr. 13, 2004 with English translation.

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