Modular electronic system for verifying the correct execution of operations performed by the system itself

摘要

A modular electronic system for verifying the correct execution of operations executed by said electronic system is described, characterized in that it comprises: - a number N greater than 1 of electronic subsystems (CPS1 CPSN) operating in parallel, each one adapted to: - receive external data (I) at its inputs, - execute said operations and output the result thereof at its outputs, - receive, at other inputs, the outputs of the other electronic subsystems, - re-execute said operations on said inputs received from the other electronic subsystems and output the results of the re-executions; - a symmetric processing block (SYM) adapted to receive and compare all the outputs of said electronic subsystems (CPS1 CPSN), and to decide which one of said outputs of the electronic subsystems should be chosen as a value of said correct execution of operations to be outputted at its output, based on the symmetry verified among said outputs.