Replication is a well-know fault-tolerance technique, and several replication strategies exist (e.g. active, passive, and semi-active replication). To be used in hard real-time systems, the presence of replication must be dealt with in scheduling algorithms, and more particularly in the feasibility tests in charge of testing whether deadlines will be met or not. So far, existing solutions to in...

Abstract Yogyakarta has experienced two devastating earthquake disasters: May 26, 2006, Mw6.4, and the penultimate event, June 10, 1867 Mw7.7. The active fault that is thought to be responsible for events Opak Fault. However, Fault still not been thoroughly well mapped yet. lack of a high-resolution image, dense vegetation cover, high sediment flux from Merapi volcano, human activities eroding ...

Two active fault diagnosis methods for additive or parametric faults are proposed. Both methods are based on controller reconfiguration rather than on requiring an exogenous excitation signal, as it is otherwise common in active fault diagnosis. For the first method, it is assumed that the system considered is controlled by an observer-based controller. The method is then based on a number of a...

Unique attributes in sequences of recurring, similar microearthquakes at Parkfield, California, provide a means for inferring slip rate at depth throughout the active fault surface from the time intervals between sequence events. Application of the method using an 11-year microseismicity record revealed systematic spatial and temporal changes in the slip rate that were synchronous with earthqua...

In this paper a novel methodology to achieve fault tolerance in VLSI Array Processors is proposed. A “Fence” based approach is adopted in which the logic array is partitioned and spares are distributed along the boundary of the active array. The emulator as in conventional fault tolerance techniques takes care of fault mapping and reconfiguration. The latency, reconfiguration interconnect lengt...

Finite State Markov (FSM) models for fading channels need to be revised for more realistic design of emerging mobile networks and their performance evaluation. In this paper a Outage Tolerant FSM Model (OTFSM) is proposed based on concept of certain tolerable outage times, which are defined as ‘Tolerance time’. These are the short duration of outage time which is considered as satisfactory time...

Programmable and active networks allow specified classes of users to deploy dynamic network services adapted to data streams requirements. Currently most of researches performed on active networks are conducted in research laboratories. In this paper, we explore the design of IAN an Industrial Autonomic Network Node able to be deployed in industrial context. Performance, dynamic programmability...

With the increasing demand for higher performance, safety and reliability of dynamic systems, fault diagnosis has received more and more attention. The observer-based strategy is one of the active research fields, which is widely used to construct model-based fault detection systems for technical processes which can be well modelled as linear time invariant systems. Fault diagnosis for nonlinea...

Train control system is a vital system due to controlling the speed and interlocking of train in railway. The train control system is designed by double module or triple module system as a vital system. Hardware redundancy means to use additional hardware to defect and tolerant faults. There are three forms of hardware redundancy: passive, active and hybrid. Passive redundancy architecture achi...