Title :
DACAPO: a distributed computer architecture for safety-critical control applications
Author :
Rostamzadeh, B. ; Lönn, H. ; Snedsbol, R. ; Torin, J.
Author_Institution :
Dept. of Comput. Eng., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
An architecture for a highly dependable real-time computer network is presented. The architecture and communication protocol are suited for cyclic time-deterministic applications typically found in embedded control systems. Particular attention has been directed towards the requirements of safety-critical automotive control systems. The scheduling of both network communication and application processes is determined at compile time and is thus completely deterministic. A DACAPO system consists of a number of nodes communicating over two serial buses. Each node is composed of two sets of functionally identical fail-silent units, thus providing tolerance against any single fault. A high degree of error detection coverage and the tolerance towards transient faults inherently associated with cyclic operation combine to yield an architecture with a very high safety level
Keywords :
automobiles; computer network reliability; local area networks; real-time systems; redundancy; safety-critical software; DACAPO; communication protocol; cyclic operation; cyclic time-deterministic applications; distributed computer architecture; embedded control systems; error detection coverage; functionally identical fail-silent units; highly dependable real-time computer network; safety-critical automotive control systems; safety-critical control applications; transient fault tolerance; Application software; Automotive engineering; Communication system control; Computer architecture; Computer networks; Control systems; Fault detection; Processor scheduling; Protocols; Safety;
Conference_Titel :
Intelligent Vehicles '95 Symposium., Proceedings of the
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-2983-X
DOI :
10.1109/IVS.1995.528311
