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Ethernet for Aerospace Applications - Ethernet Heads for the SkiesOne of the goals of aerospace applications is to reduce the cost and complexity of avionic systems. Ethernet is a highly scalable, flexible, and popular protocol. The aerospace market is large, with a forecasted production of over 50,000 turbine-powered aircraft valued at $1.7 trillion between 2012 and 2022. Boeing estimates demand for commercial aircraft by 2033 to total over 36,000 with a value of over $5 trillion. In 2014 US airlines served over 750 million passengers and this is growing over 2% yearly. Electronic fly-by-wire is now used for all airliners and high performance aircraft. Although Ethernet has been widely used for four decades, its use in aerospace applications is just beginning to become common. Ethernet is the universal solution in commercial networks because of its high bandwidths, lower cost, openness, reliability, maintainability, flexibility, and interoperability. However, when Ethernet was designed applications with time-critical, safety relevant and deterministic requirements were not given much consideration. Many aerospace applications use a variety of communication architectures that add cost and complexity. Some of them are SpaceWire, MIL-STD-1553, Avionics Full Duplex Switched Ethernet (AFDX), and Time-Triggered Ethernet (TTE). Aerospace network designers desire to decrease the number of networks to reduce cost and effort while improving scalability, flexibility, openness, maintainability, and reliability. AFDX and TTE are being considered more for critical aerospace systems because they provide redundancy, failover protection, guaranteed timing, and frame priority and are based on Ethernet IEEE 802.3. This paper explores the use of AFDX and TTE for aerospace applications.
Document ID
20150011061
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Grams, Paul R. (NASA Ames Research Center Moffett Field, CA United States)
Date Acquired
June 18, 2015
Publication Date
April 14, 2015
Subject Category
Computer Systems
Avionics And Aircraft Instrumentation
Report/Patent Number
ARC-E-DAA-TN22607
Meeting Information
Meeting: Ethernet Technology Summit
Location: Santa Clara, CA
Country: United States
Start Date: April 14, 2015
End Date: April 16, 2015
Sponsors: Institute of Electrical and Electronics Engineers, New Hampshire Univ.
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
Ethernet
avionic
network

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