Dependability Evaluation of Networked Control Systems Under Transmission Faults

Abstract

The validation of network systems is mandatory to guarantee the dependability levels, that international standard impose in many safety-critical applications. This article presents a framework for the dependability evaluation of a networked control system (NCS) taking into account the network behaviour when transition faults occurs. CAN-based systems are studied and a proposed method is described with an example.

Distribution diagnosis of networked embedded system

“…FDI algorithms are adapted to take into account the delays, but other failures that can be introduced by fieldbus are not considering. Few works integrate the failures induces by the network, as missing information, silent sensors, … These failures are studied in fieldbus of low level, which have only three layers as represented figure 6, [Ghostine et al, 2007). For each layer, an inductive approach based on a Failure Mode, Effects Analysis (FMEA) has been carried out.…”

Dependability Issues for Intelligent Transmitters and Reliability Pattern Proposal

“…Barger et al, 2004 quantify the availability of a control system made up by communication network, sensors, control units, and actuators, with coloured Petri nets. In order to take transmission faults into account in field bus availability assessments, Ghostine et al, 2006 use stochastic activity networks (SANs). In both of these approaches, results are obtained by Monte Carlo simulations.…”