In recognition of its innovative communication data bus – the Time-Triggered Protocol (TTP) – for aircraft, Austria-based TTTech Computertechnik AG has been bestowed the “2005 Frost & Sullivan Technology Innovation Award” for aerospace and defense communications technologies. With its sophisticated architecture, TTP has the potential to reduce airline manufacturing and operating outlays and ultimately reduce the cost of air travel.
At present, the aerospace industry is facing pressures to reduce costs while increasing aircraft capability and features. At the same time, as aircraft manufacturers increasingly focus on integrating various electro-mechanical systems in aircraft and developing new functionality, system complexity is poised to rise, driving the need for a robust data bus.
“TTP is a breakthrough data bus with modular architecture centered on a static pre-defined communication schedule that is fault-tolerant and fault isolating,” notes Frost & Sullivan Research Analyst Vijay Shankar Murthy. “With the schedule available to all sub-systems, the implementation of tasks is determined by the schedule rather than dependent on events such as interrupts, timeouts, and semaphores. As a result, it lessens the complexity caused by the ever-increasing number of functions in event-triggered systems.”
TTP represents a significant advance over the previous non-modular, low-speed, unidirectional ARINC 429 data bus. Due to its modularity, each sub-system of TTP can be assembled in parallel, thereby accelerating the time-to-market. Other design benefits include reduced wiring for aircraft systems and lower costs due to the ability to reuse and recycle its components.
“We are really proud to have received the Technology Innovation Award by Frost & Sullivan,” says Stefan Poledna, CEO at TTTech Computertechnik AG. “In presenting us with this award, Frost & Sullivan recognizes the maturity and relevance of the TTP data bus and the enormous potential for its use in commercial production and for the introduction of advanced functionalities in aerospace applications.”
TTP is deployed in a variety of aerospace applications. Honeywell uses TTP for General Electric’s F110 FADEC system on the Lockheed Martin F-16 fighter aircraft. Another Honeywell application is the F124 FADEC system on the Aermacchi M-346 fighter trainer aircraft. Honeywell’s APEX integrated cockpit with TTP has been selected as the standard avionics package for the GROB Ranger G 160, the EXTRA EA-500, the IBIS Ae270, and several other single-engine turboprop business aircraft. Nord-Micro has selected TTP as the communication protocol for the Airbus A380 cabin pressure control system. Additionally, TTP is key contender for use in next-generation aircraft and spacecraft applications.
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