Token passing and 1553B bus access protocols are compared with respect to their ability to provide communications in flight critical control applications. A set of performance parameters, including bus access delay, were generated for this purpose. It was concluded that the token passing bus is superior to 1553B (as typically implemented in avionics systems). However, it was also concluded that 1553B could be implemented, without any modification to its existing protocol, to minic the token passing bus. With an increasing bandwidth to 40MBPS and greater terminal accommodation, the resultant 1553B would then be dynamically indistinguishable from the token passing bus. The paper concludes with recommendations for bus and terminal reliability requirements commensurate with flight critical control applications.
Evaluation of data busses for flight critical control applications
Bewertung von Datenbussystemen fuer flugkritische Steueranwendungen
1986
10 Seiten, 8 Bilder, 4 Quellen
Conference paper
English
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