Abstract: The invention relates to an electronic device for the centralized computation and diffusion of the state(s) of an aircraft, configured for at least calculate the value of one or more aircraft state(s), generate a list of aircraft state(s) the value of which is accessible via the electronic device, the list comprising, for each state, information representative of the said state, diffuse the list to each consumer avionics device, of at least one value of at least one state, receive, from at least one consumer avionics device, at least one request for transmission of one or more values of at least one first state selected from the list, the request comprising the said representative information related to the said at least one first selected state, and transmit, to at least one consumer avionics device, only the value or values of the at least one selected state.

Abstract: The invention relates to an electronic device for the centralized computation and diffusion of the state(s) of an aircraft, configured to at least: calculate the value of one or more aircraft state(s), generate a list of aircraft state(s) the value of which is accessible via the electronic device, the list comprising, for each state, information representative of the said state, diffuse the list to each consumer avionics device, of at least one value of at least one state, receive, from at least one consumer avionics device, at least one request for transmission of one or more values of at least one first state selected from the list, the request comprising the said representative information related to the said at least one first selected state, transmit, to at least one consumer avionics device, only the value or values of the at least one selected state.

Abstract: An avionic equipment unit, intended to be on board an aircraft, including a calculating module configured to calculate a signature associated with a data field, the calculated signature depending on the data field, and a transmission module configured to transmit a message to another avionic equipment unit on board the aircraft, the message including the data field and the associated calculated signature, the calculated signature being unique for each data field and for each respective message transmission.

Abstract: An avionic equipment unit, intended to be on board an aircraft, including a calculating module configured to calculate a signature associated with a data field, the calculated signature depending on the data field, and a transmission module configured to transmit a message to another avionic equipment unit on board the aircraft, the message including the data field and the associated calculated signature, the calculated signature being unique for each data field and for each respective message transmission.