A Deterministic Ethernet Solution based on Time Sensitive Networking (TSN)
The recent introduction of the IEEE 802.1Q Time Sensitive Networking (TSN) real-time extensions to Ethernet presents new options for data networks within aerospace systems. Historically the widespread use of Ethernet in real-time systems has been hampered by Ethernet’s “lossy” communication model and a general lack of determinism. TSN is an emerging technology for switched networks that provides high accuracy time synchronization, deterministic traffic scheduling and robust redundancy and path routing. These features combine to make it an attractive option for aerospace applications
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IRIG 106 Chapter 10 Standardizes MIL-STD-1553 Data Recording
In an effort to reap the benefits of standardization for data recorder file formats, the Range Commanders Council (RCC) and others in the US Air Force instrumentation community developed the IRIG 106 Chapter 10 standard. IRIG 106 Chapter 10 provides interoperability for such applications as test range telemetry, flight test instrumentation, mission recorders, video/data servers; surveillance and reconnaissance; health and usage monitoring; mission planning, debriefing, and training; and flight operations.The focus of this paper is on the formatting of data monitored from MIL-STD-1553 buses.
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High Speed 1760 and FC-AE-1553
Network interfaces for future “smart” weapons will need to support applications such as transfers of terrain maps, target templates, program files, and digitized images and video for lock-on before launch. These applications will require the use of a high-speed data interface.
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Test, Simulation, and Integration of Fibre Channel Networked Systems
Fibre Channel is a high-speed networking technology deployed on a number of military/aerospace platforms and programs. These include F- 18E/F, F-16, F-35, B1-B, B-2, E-2D, the Apache Longbow and MMH helicopters, and AESA Radar. Applications for Fibre Channel include mission computers, processor and DSP clusters; data storage; video processing, distribution, and displays; sensors such as radar, FLIR, and video; serial backplanes and IFF.
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A Practical Approach to Commercial Aircraft Data Buses
MIL-STD-1553 is a mature field proven technology that provides an ideal solution for emerging commercial aerospace applications. DDC is offering a wide variety of solutions based on this mature technology.
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Buses and Networks for Contemporary Avionics
MIL-STD-1553 has served the needs of military system integrators for over 30 years, particularly in the area of command and control applications. Nevertheless, contemporary applications such as high-speed digitized sensors, file transfers, processor clusters, and displays require much higher data rates than 1553’s 1Mb/s. For some environments, particularly for legacy aircraft, the optional solution is to transmit faster data rates over existing 1553 buses. However, there are other applications that can accommodate and benefit by the deployment of gigabit or multi-gigabit copper or optical switched fabric networks. In addition to MIL-STD-1553, this paper presents and comments about several avionics networking technologies including High-Speed 1553, Fibre Channel, Gigabit Ethernet, and ARINC 664, a form of profiled Ethernet.
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MIL-STD-1553 Goes Commercial
MIL-STD-1553 is a serial data bus that has been used as the primary command and control interconnect in military aircraft for the past three decades. MIL-STD-1553’s robust performance, high level of interoperability, large installed based, and well established infrastructure of vendors has made MIL-STD-1553 the network of choice for military avionics systems around the world. This paper explores some of the major attributes of MIL-STD-1553 and discusses why MIL-STD-1553 is an ideal choice for use in commercial aircraft systems.
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MIL-STD-1553 Physical Layer for Time-Triggered Networks
Time Triggered networking technologies such as TTP (Time Triggered Protocol) are beginning to be used in critical aerospace applications such as flight controls. While TTP provides stringent specifications for determinism and fault tolerance, it does not define a physical layer. This paper presents MIL-STD-1553’s physical layer as a candidate for use with TTP.
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Distributed and Reconfigurable Architecture for Flight Control System
New airplanes must meet rigorous requirements of aviation safety, operational reliability, high performance and energy efficiency at a low cost. To meet this challenge, we should optimize current system and take advantage of available technology for the next decade. This work is aiming at proposing some evolutions for Flight Control System (FCS) and to build alternative FCS low-cost and safe architectures for the next decade with less hardware and software resources.
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High Performance 1553
The U.S. Air Force is currently in the process of developing a revision to MIL-STD-1553 that will provide additional digital communication bandwidth beyond MIL-STD-1553B’s 1 Megabit per second (Mbps) rate. The proposed revision to MIL-STD-1553 (referred to as MIL-STD-1553C) is targeting 200 Mbps as a baseline data rate. This paper explores the feasibility of the U.S. Air Force’s proposed revision to MIL-STD-1553 based on studies conducted by Data Device Corporation (DDC).
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MIL-STD-1553 Evolves with the Times
The use of MIL-STD-1553 is not limited to military aircraft. MIL-STD-1553’s use is pervasive in military ground vehicles, military ships, and satellite systems. All of these applications share common requirements for a deterministic, fault tolerant data bus that will operate in relatively harsh environments.
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Total COTS Solutions for Embedded 1553
For contemporary avionics design, there’s a need to strategically allocate engineering resources without increasing time to market. This environment has engendered an increasing reliance on Commercial-off-the-Shelf (COTS) hardware and software, with a demand for total solutions that may be leveraged over a range of applications.
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DDC Replacements for Obsolete Aeroflex Transceivers
Aeroflex Colorado Springs (Aeroflex) announced on April 17th, 2009 that both UT63M105 & UT63M125 (Standard Microcircuit Drawing 5962-88644), 15-Volt, MIL-STD-1553 Bus Transceivers have reached End-of-Life (EOL) status and are out of production. DDC replacements are lower-power and are electrically / mechanically compatible to the discontinued items which should preclude the need for a board re-design due to the transceiver obsolescence issue.
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How Rad Hard Do You Need? The Changing Approach To Space Parts Selection?
Space is no longer the sole domain of the world’s largest governments, where programs are funded by enormous and eternal budgets aimed at fighting the cold war. Consequently, space manufacturers around the world are faced with a requirement to build satellites that are faster, better and cheaper than those made in the past. To meet this rapidly changing market, satellite companies and component manufacturers alike have begun reshaping their product offerings. More specifically, semiconductor manufacturers have begun reinterpreting industry conventions to meet the needs of their newly redefined customer base.
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Avionics Networking Technology
Avionics system architects have a wide variety of commercial off the shelf (COTS) choices for networking technologies. The challenge facing many system architects is choosing a cost effective technology that satisfies the functional requirements of the system. This paper provides insight into some of the key architectural features of two of the most popular emerging networking technologies used in avionics today, namely, Fibre Channel and Ethernet.
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