Smart point of presence (SPOP) aircraft-based high availability edge network architecture
A high availability aircraft network architecture incorporating smart points of presence (SPoP) is disclosed. In embodiments, the network architecture divides the aircraft into districts, or physical subdivisions. Each district includes one or more mission systems (MS) smart network access point (SNAP) devices for connecting MS components and devices located within its district to the MS network. Similarly, each district includes one or more air vehicle systems (AVS) SNAP devices for connecting AVS components and devices within the district to the AVS network. The AVS network may remain in a star or hub-and-spoke topology, while the MS network may be configured in a ring or mesh topology. Selected MS and AVS SNAP devices may be connected to each other via guarded network bridges to securely interconnect the MS and AVS networks.
1. An aircraft mission systems (MS) network architecture, comprising:
a plurality of districts, each district associated with a physical subdivision of an aircraft, each district comprising:
at least one first MS smart network access point (SNAP) device configured to connect a MS network to one or more MS components disposed within the district,
the MS network comprising a plurality of MS SNAP devices communicatively connected in a first topology via a network trunk;
at least one first air vehicle systems (AVS) SNAP device configured to connect an AVS network to one or more AVS components disposed within the district,
the AVS network comprising a plurality of AVS SNAP devices communicatively connected in a second topology via a second network trunk;
and
the MS network including at least one second MS SNAP device communicatively coupled to a second AVS SNAP device of the AVS network via a guarded network bridge.
2. The aircraft MS network architecture of claim 1 , wherein the district is an essential district including at least one of:
a mission-critical MS component operatively coupled to the MS SNAP device;
and
a mission-critical AVS component operatively coupled to the AVS SNAP device.
3. The aircraft MS network architecture of claim 1 , wherein:
the first topology is either a ring topology or a mesh topology;
and
the second topology is a star topology.
4. The aircraft MS network architecture of claim 1 , wherein the first network trunk includes at least one fiber optic trunk.
5. The aircraft MS network architecture of claim 4 , wherein the MS SNAP device includes at least one adaptive input/output (I/O) component operatively coupled to one or more legacy MS components disposed within the district by a wired interface, the adaptive I/O component configured for data exchange between the MS network and the one or more legacy MS components.
6. The aircraft MS network architecture of claim 5 , wherein the wired interface includes at least one of:
a serial data bus according to MIL-STD-1553;
an avionics data bus according to ARINC 429;
or
an Ethernet networking component.
7. The aircraft MS network architecture of claim 5 , wherein the adaptive input/output (I/O) component includes at least one data concentrator unit (DCU).
8. The aircraft MS network architecture of claim 5 , wherein the adaptive input/output (I/O) component includes:
one or more local processors;
and
non-transitory data storage configured for storing processor-executable instructions;
wherein the one or more local processors are configurable by the processor-executable instructions for one or more of a cross-domain guard or a multiple levels of security (MLS) encryption/decryption module.
9. The aircraft MS network architecture of claim 1 , wherein the first MS smart network access point (SNAP) device includes one or more power control components configured to distribute operating power to the one or more MS components.
10. The aircraft MS network architecture of claim 9 , wherein the one or more power control components include at least one of:
a power converter operatively coupled to a power supply of the aircraft;
an electronic circuit breaker (ECB);
or
a local battery.