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AFDX based avionic data bus architecture design and analysis

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3 Author(s)
Jian Li ; Comput. Sci. & Eng. Dept., Shanghai Jiao Tong Univ., Shanghai, China ; Long Zheng ; Yao, Jianguo

The communication between various on-board systems is paramount important for the concept of fly-by-wire, the issues of safety-critical applications, component interaction, which is on the forefront of modern airborne applications. Avionics full duplex switched Ethernet (AFDX) responses this challenge as a bus standard based on the Ethernet protocol and has gained recognition and widespread uses in large commercial aircraft. AFDX addresses quality of service, determinism, and reliability required in an aircraft environment, and at the same time provides the advantages in wiring bundles and the communication bandwidth, increasing network capability, and supporting deterministic requirement of the airborne system and certification guidelines system. AFDX is an implementation of the ARINC 664 Part 7 standard, which uses Ethernet hardware media, but the protocol is fundamentally different from the IEEE 802.3 Ethernet in that it provides reliable time determinism, bounded latency, guaranteed bandwidth, and fault tolerance suitable for flight safety-critical applications. In this project, we address the issue of an advanced architecture for the new avionic network based on the integration of AFDX and field bus transmission schemes. This new avionics communication network combine throughput, architecture adaptability, and secure and safe digital data stream to environment with respect to safety, availability, determinism, and environmental constraints for supporting the development of next generation of avionics applications.

Published in:

Autonomous Decentralized Systems, 2009. ISADS '09. International Symposium on

Date of Conference:

23-25 March 2009