A safety-critical system is a system whose failure could result in loss of life, significant property damage, or damage to the environment (Knight, 1990). Miniaturisation and processing improvements have enabled the spread of safety-critical devices from nuclear and military applications to domains as diverse as implanted medical devices, traffic control, smart vehicles, and interactive virtual...

Abstmct The paper preknts a novel AI-ANN neural network global on-line fault detection, pa& tern classification, and relaying detection acheme for synchronous generators in interconnected electric utility networks. The input discriminant vector comprises the dominant FFT frequency spectra of eighteen input variables forming the discriminant diagnostic hyperplane. The on-line ANN based relaying ...

We present an approach for deployment of real-time software in ECU networks enabling AUTOSAR-based design of fault-tolerant automotive systems. Deployment of software in a safety-critical distributed system implies appropriate mapping and scheduling of tasks and messages to fulfill hard real-time constraints. Additional safety requirements like deterministic communication and redundancy must be...

With the constant evolution and ever-increasing transistor densities in semiconductor technology, error rates are on the rise. Errors that occur on semiconductor chips can be attributed to permanent, transient or intermittent faults. Out of these errors, once permanent errors appear, they do not go away and once intermittent faults appear on chips, the probability that they will occur again is ...

Dynamic resource management is a crucial part of the infrastructure for emerging mission-critical distributed real-time embedded system. Because of this, the resource manager must be fault-tolerant, with nearly continuous operation. This paper describes an ongoing effort to develop a fault-tolerant multi-layer dynamic resource management capability and the challenges we have encountered, includ...

Real-time systems are being increasingly used in several applications which are time-critical in nature. Fault tolerance is an essential requirement of such systems, due to the catastrophic consequences of not tolerating faults. In this paper, we study a scheme that guarantees the timely recovery from multiple faults within hard real-time constraints in uniprocessor systems. Assuming earliest-d...

--In many distributed real-time systems, certain critical data need to be replicated to achieve fault-tolerance and improved performance. Schedulers for such distributed realtime systems must satisfy timing constraints of transactions and preserve data consistency. In this paper we presents a replicatioin control algorithm, which integrates real-time scheduling and replication control to achiev...

Real-time databases are increasingly being used as an integral part of many computer systems. During normal operation, transactions in real-time databases must execute in such a way that transaction timing and data time validity constraints can be met. Real-time databases must also prepare for possible failures and provide fault tolerance capability. Principles for fault tolerance in real-time ...

Special interest in designing, constructing and exploitation of fault tolerant systems is connected with the need of attending to critical infrastructure systems. In this paper we focus on presentation and analysis of the requirements demanded on the context of fault tolerance assurance in the critical infrastructure systems. Especially, we take into consideration algorithmical and topological ...