US 12,067,811 B2
System for secure transfer of digital aircraft data comprising redundant data producer systems, related assembly and method
Patrick Dignimont, Saint Cloud (FR); Jérôme Cappelle, Saint Cloud (FR); and Serge Bruillot, Saint Cloud (FR)
Assigned to DASSAULT AVIATION, Paris (FR)
Filed by DASSAULT AVIATION, Paris (FR)
Filed on Jan. 13, 2022, as Appl. No. 17/574,644.
Claims priority of application No. 21 00286 (FR), filed on Jan. 13, 2021.
Prior Publication US 2022/0222980 A1, Jul. 14, 2022
Int. Cl. G07C 5/00 (2006.01); B64D 45/00 (2006.01); B64D 47/00 (2006.01); G07C 5/08 (2006.01)
CPC G07C 5/008 (2013.01) [B64D 45/00 (2013.01); B64D 47/00 (2013.01); G07C 5/0841 (2013.01); B64D 2045/0085 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An aircraft data transfer system, comprising:
a first data producer configured to produce first data at successive moments;
a second data producer redundant with the first data producer, the second data producer being configured to produce second data, identical to the first data;
at least one data consumer configured to receive and use the first data;
at least one of the first data producer, the second data producer and the at least one data consumer being on board an aircraft; and
a data transfer link between the first data producer and the at least one data consumer, the first data producer being configured to transfer the first data to the at least one data consumer via the data transfer link;
the second data producer being configured to produce an integrity check result relating to at least the second data, to be transmitted to the at least one data consumer,
the at least one data consumer being configured to retrieve the first data transferred from the first data producer and the integrity check result produced by the second producer, the at least one data consumer being configured of checking the integrity of the first data by establishing a new integrity check result from the first data and by comparing the new integrity check result with the integrity check result produced by the second data producer.