Reliable fail-safe systems

Marcelo Lubaszewski (1) , B. Courtois (1)

1 TIMA - Techniques de l'Informatique et de la Microélectronique pour l'Architecture des systèmes intégrés

A fault-tolerant scheme is presented which is based on two copies of a self-checking module and a fail-safe interface. The interface preserves the modules' safety and becomes fault-tolerant by embedding appropriate self-testing capabilities. We show that, for self-checking module area overheads not exceeding the theoretical upper bound of square root 3-1 (73%), our fault-tolerant scheme is more reliable than the triplicated modular redundant structure.

Mots clés: fault-tolerant-scheme; self-checking-module; fail-safe-interface; safety-; self-testing; area-overheads

Domaines: Micro et nanotechnologies/Microélectronique

Marcelo Lubaszewski, B. Courtois. Reliable fail-safe systems. 1993, pp.32-7. ⟨hal-00007939⟩