Programmable Controllers
Mostrando 13-21 de 21 artigos, teses e dissertações.
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13. Aplicação da teoria de controle supervisório no projeto de controladores para sistemas de rota variável centrado em robô PPGEPS
Os modernos sistemas de manufatura se caracterizam pela fabricação de uma extensa de linha de produtos o que os identificam como sistemas multi-produtos. Sendo assim, tais sistemas são marcados por um alto grau de flexibilidade e complexidade presente em seus processos. A flexibilidade advém do elevado número de tarefas possíveis de serem realizadas e
Publicado em: 2007
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14. Desenvolvimento de metodologia de aplicação de redes de Petri para automação de sistemas industriais com controladores lógicos programáveis (CLP). / Development of methodology of application of Petri Net for automation of industrial systems with programmable logic controllers.
Due to the needs of the modern world, the systems of automation have increased their complexity, forcing the development of ever more powerful engineering tolls to shape and analyse them. In systems of industrial automation, the Programmable Logic Controllers (PLCs), have been widely applies. The PLCs are generally programmed through the use of the Ladder pr
Publicado em: 2006
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15. Implementação e simulação de algoritmos de escalonamento para sistemas de elevadores usando arquiteturas reconfiguráveis.
This work proposes an elevator system that allows the vertical transport of passengers in a efficient way. This approach is based on the implementation of dispatching algorithms using Reconfigurable Architectures. A fuzzy logic method was proposed in order to identify traffic patterns in the building and schedule the elevators, which was carried out by imple
Publicado em: 2006
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16. Sistema experimental de monitoramento e controle para casas de vegetação baseado em redes de controle distribuído LonWorks. / Experimental greenhouse monitoring and control system based on LonWorks distributed control network.
Protected agriculture using greenhouses allows high quality crops and in any time of the year. The technology has a preponderant role in the control of these environments, although no always successfully. Conventional solutions, such as Programmable Logic Controllers, or systems with proprietary technology are predominant. The evolution of the communication
Publicado em: 2006
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17. Norma IEC61131-3: aspectos históricos, técnicos e um exemplo de aplicação. / IEC61131-3 standard: historical and technical aspects and an application example.
Este trabalho traça um panorama dos PLCs e tecnologias associadas em momentos anteriores e posteriores à publicação da norma IEC61131-3 e discute aspectos relativos à sua adoção. A aplicação deste norma pode trazer ganhos de produtividade no projeto e implementação de sistemas de automação industrial. Esta dissertação apresenta o caso do "Proj
Publicado em: 2005
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18. Estudo comparativo entre a aplicação de sistemas dedicados e a utilização de controladores lógico-programáveis na automação de sistemas prediais. / Comparative study between among application os dedicated systemas and the use of programmable logic controllers on building automations systems.
This research focuses building automation, analyzing comparatively the use of conventional technologies and other equipments commonly applied in industrial processes. Through a case study, a description of mainly building systems that are feasible to be automated in high technology buildings has been made, including a comparative evaluation of mainly buildin
Publicado em: 2004
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19. A timed Petri net methodology based on area estimator for hardware/software co-design systems environments / Uma metodologia para estimativa de Ãrea baseada em redes de Petri temporizadas para ambientes de sistemas de hardware/software co-design
Most modern electronic systems consist of dedicated hardware and programmable components (called software components). Over the last few years, the number of methodologies that concurrently apply design techniques from different areas to develop mixed hardware/software system has been growing considerably. The concurrent design of mixed hardware/software sys
Publicado em: 2004
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20. Integração de processos em tempo real para monitoramento e controle : aplicação para planta de PET
This work deals with the implementation of a soft-sensor for a PET (Polyethylene terephtalate) industrial process based on neural networks. The soft-sensor acts as redundant measure current for the polymer viscosity in the liquid phase; and, in case of mechanical faults, it is able to diagnoses the faults on the viscometer and can replace it.The viscosity co
Publicado em: 2003
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21. Command part structuration of manufacturing automation system with emphasis in supervisory system / Estruturação da parte de comando de um sistema automatizado de produção com enfase na implementação de um sistema de supervisão
This work presents a study of automation relative to process planning, monitoring of machines and equipment, material flux, supervision of the system and communication network. In this work are developed programs to monitoring machines and equipments. Algorithms and solutions to the use of interfaces are presented and implemented, utilizing a microcomputer a
Publicado em: 1995