Fault Of Systems Engineering
Mostrando 1-10 de 10 artigos, teses e dissertações.
-
1. An Asynchronous Interface with Robust Control for Globally-Asynchronous Locally-Synchronous Systems
ABSTRACT: Contemporary digital systems must necessarily be based on the "System-on-Chip" (SoC) concept. Especially in relation to the aerospace industry, these systems must overcome some additional engineering challenges concerning reliability, safety and low power. An interesting style for aerospace SoC design is the GALS (Globally Asynchronous, Locally Syn
J. Aerosp. Technol. Manag.. Publicado em: 2013-03
-
2. Fault-tolerant state estimation of linear Gaussian systems subject to additive faults
Owing to the need for the satisfaction of attributes such as safety, maintainability, and reliability in modern critical engineering devices, the design of automatic feedback control systems has increasingly demanding fault-tolerant methods. In particular, if the system states cannot directly be measured by the available suite of sensors, a fault-tolerant st
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2011
-
3. Uma abordagem arquitetural para o desenvolvimento rigoroso de sistemas confiáveis baseados em componentes / A rigorous architectural approach to development component-based software systems
The incorporation of fault tolerance into systems normally increases their complexity, which consequently makes their analysis more difficult. Moreover, the use of exception handling mechanisms to develop robust software systems in a non-systematic manner can be a source of many design faults. This thesis presents a rigorous and architecture-centric developm
Publicado em: 2009
-
4. RUP extension for development of distributed systems.
The increasing number of distributed systems results from the progress of computing and communication technology. This progress contributed to the expansion of Internet, increasing both availability and decentralization of the storage and processing. Nowadays the development of mature software for those systems is accomplished through the use of good practic
Publicado em: 2008
-
5. Adaptability, reusability and variability in software systems for space on-board computing.
Software industry is currently moving towards automation of business processes and applications increasing architectural complexity and the dynamics of requirements change. This work proposes a novel software development process, called SPAREv that includes all todays critical innovations on four areas: Model-Driven Development (MDD); Systematic Reuse; Devel
Publicado em: 2008
-
6. Localization of fails in transmission lines using harmonic decomposition and artificial neural nets / Localização de falhas em linhas de transmissão utilizando decomposição harmônica e redes neurais artificiais
Este trabalho propõe a utilização de uma nova metodologia para a localização de falhas em linhas de transmissão (LT). Esta metodologia consiste na utilização da decomposição harmônica da corrente de fuga de uma linha e na aplicação de uma Rede Neural Artificial (RNA) capaz de distinguir padrões da condição normal de funcionamento e padrões d
Publicado em: 2006
-
7. TOLERÂNCIA À FALHA DOS AGENTES DE MOBILIDADE DO PROTOCOLO MOBILE IP / FAULT TOLERANCE OF MOBILITY AGENTS OF PROTOCOL MOBILE IP
The growth of the Internet, as much of the point of view of the number of users as of the offered services, and the fast progress of the wireless communication technology, it became possible a demand for wireless systems that allow the access the Internet. However, one of the main challenging factors for the development this new access way is the mobility of
Publicado em: 2005
-
8. Detecção e diagnostico de falhas em sistemas de processos quimicos. Importancia do conhecimento de estados intermediarios de processos dinamicos. Desenvolvimento de uma metodologia baseada em redes neurais
Artificial Neural Networks (ANN) have demonstrated excellent performance in automatic fault detection and diagnosis in many engineering applications. The great problem when using neural networks, is that neural networks perform only as robustly as the data from which they are trained. This means that is necessary to use as much data as possible in order to c
Publicado em: 2000
-
9. Faults detection and isolation using reduced-order state observers / Detecção e localização de falhas via observadores de estado e de ordem reduzida
The development of new faults detection techniques is necessary because of increasing demands from industries on reliability and safety in mechanical systems. They must be supervised such that occurrence of failures can be accommodated as quickly as possible because they can cause an unacceptable deterioration of the systems performance. In this work, we hav
Publicado em: 1998
-
10. PROCESS CONTROL SYSTEMS : DEPENDABILITY AND PERFORMANCE MODELING
Today, a wide variety of computer systems are required to react automatically to various events generated by external processes and/or human operators. An important class of these process control systems, called hard real-time systems, need to respond to events under severe timing constraints expressed in terms of deadlines and earliest starting times. In ge
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/05/1997