Data transmission architecture and vehicle fitted with such architecture
AssigneeAirbus Helicopters
InventorsClément LETONNELIER, Pascal IZZO
Life of this patent
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Abstract
An architecture for transmitting data within an avionics system fitted to a vehicle, the architecture comprising a first field bus and a first avionics bus. According to the invention, the architecture comprises at least two primary channels each comprising: a primary field interface enabling communication between each primary channel via the first field bus, the field interfaces being interconnected with the first field bus; and a first avionics interface compatible with the first avionics bus. The architecture comprises at least one primary computer provided with a second avionics interface in communication via the first avionics bus with only one first avionics interface among the first avionics interfaces.
Claims14
An architecture for transmitting data within an avionics system fitted to a vehicle, the architecture comprising a first field bus and a first avionics bus, the first avionics bus being distinct from the first field bus,
- wherein the architecture comprises:
- at least two primary channels each comprising:
- a primary field interface, the field interfaces being interconnected with the first field bus;
- a first avionics interface compatible with the first avionics bus;
- a primary processing unit generating primary uplink avionics data frames;
- at least one primary conversion unit converting each primary uplink avionics data frame generated by the primary processing unit into at least one primary uplink field data frame intended to be transmitted via the first field bus to each of the other primary channels and, conversely, converting each primary uplink field data frame received via the first field bus into a primary uplink avionics data frame;
- and
- a primary memory storing a set of primary uplink avionics data frames comprising primary uplink avionics data frames generated by each of the primary processing units of the at least two primary channels;
- and, wherein the architecture comprises at least one primary computer provided with a second avionics interface in communication via the first avionics bus with only one first avionics interface among the first avionics interfaces of the at least two primary channels, the other first avionics interfaces being left free and separate from any avionics bus, the at least one primary computer receiving the set of primary uplink avionics data frames via the first avionics bus and being configured to execute at least one critical function of the avionics system, using at least one of the primary uplink avionics data frames of the set of primary uplink avionics data frames.
An architecture for transmitting data within an avionics system fitted to a vehicle, the architecture comprising a first field bus and a first avionics bus, the first avionics bus being distinct from the first field bus,
- wherein the architecture comprises:
- at least two primary channels each comprising:
- a primary field interface, the field interfaces being interconnected with the first field bus;
- a first avionics interface compatible with the first avionics bus;
- at least one primary computer provided with a second avionics interface in communication via the first avionics bus with only one first avionics interface among the first avionics interfaces of the at least two primary channels, the other first avionics interfaces being left free and separate from any avionics bus, the at least one primary computer transmitting at least one primary downlink avionics data frame via the first avionics bus;
- the at least two primary channels each comprising:
- a primary processing unit using the at least one primary downlink avionics data frame;
- at least one primary conversion unit converting the at least one primary downlink avionics data frame transmitted by the at least one primary computer into at least one primary downlink field data frame intended to be transmitted via the first field bus to each of the other primary channels and, conversely, converting each primary downlink field data frame received via the first field bus into a primary downlink avionics data frame;
- and
- a primary memory storing a set of primary downlink avionics data frames.
Dependencies are inferred from the claim text.