Virtual Sensors
Mostrando 13-24 de 24 artigos, teses e dissertações.
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13. Fault detection and diagnosis in sensors and actuators of the multi-mission platform / Detecção e diagnóstico de falhas em sensores e atuadores da plataforma multi-missão
Este trabalho apresenta métodos e técnicas para Detecção e Diagnóstico de Falhas no SCA da PMM; especificamente, falhas em sensores (giroscópios) e atuadores (rodas de reação). Uma visão geral do SCA da PMM é fornecida. Posteriormente, são definidos alguns modos de falha (em conjunto com seus respectivos modelos matemáticos) como casos de estudo.
Publicado em: 2007
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14. Controle inteligente do caminhar de robôs móveis simulados
The main goal of this dissertation is to propose, to test and to evaluate the use of Machine Learning (ML) techniques in the automatic con_guration of the gait control in legged robots. In order to achieve this goal, an extensive research about state-of-the-art techniques was accomplished and they are described in this work. This research allowed the develop
Publicado em: 2007
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15. Controle ativo de ruído para transformadores de potência em campo. / Active noise control of power transformers in field.
É cada vez maior a preocupação com a poluição sonora gerada pelos transformadores de potência de subestações elétricas. Atualmente, o controle desse tipo de ruído é feito utilizando-se métodos passivos, que são caros e dificultam a manutenção dos transformadores. Uma alternativa para os métodos passivos é o controle ativo de ruído (ANC). Ap
Publicado em: 2007
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16. Predictive model for the cold rolling process through sensitivity factors via neural networks
The mathematical modeling of the rolling process involves several parameters that may lead to non-linear equations of difficult analytical solution. Such is the case of Alexander's model (Alexander 1972), considered one of the most complete in the rolling theory. This model requires excessive computational time, which prevents its application in on-line cont
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-03
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17. Uma representaÃÃo flexÃvel de controladores para animaÃÃo fisicamente realista de personagens virtuais / A flexible representation of controllers for physically realistic animation of virtual personages
We propose an improved representation of controllers which uses high-level sensors and possess a general and intuitive structure that offers the animator several types of parameters to manipulate. This structure, with the feedback signals provided by its sensors, allows that several state machines act simultaneously on the model, or in a subset of its actuat
Publicado em: 2006
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18. Um middleware reconfigurÃvel para redes de sensores sem fio
The WSN attractivity for environment conditions monitoring and to be the bridge between the physical and virtual world has been increasing due to the advances in the micro-electronics, which enabled the production of several sensor types like illumination, humidity, temperature, smoke, radiation, acoustic, seismic, etc. in a chip that processes the signal an
Publicado em: 2006
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19. Desenvolvimento de sensor virtual empregando redes neurais para medição da composição em uma coluna de destilação. / Soft sensor development using neural networks for inferential composition in a distillation column.
Soft sensors for composition inference models (that are responsible for the quality) of distillation column products, correspond to virtual instruments implemented in software. This software is able to estimate, in real time, the composition of the output products of the column, based on information such as temperature and pressure on several points of the c
Publicado em: 2005
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20. SISTEMA DE REGULAGEM DO ESFORÃO DE CORTE EM CHAPAS METÃLICAS COM VARIAÃÃO DE ESPESSURAS / SYSTEM OF REGULATION OF THE CUT EFFORT IN METALLIC PLATES WITH VARIATION IN THICKNESSES
This work presents the project of a system that can be applied under a punching operation with different thickness metal plates and the pressure variation, knowing that is one of the most used process in the mechanical industry conformation, it reaches the most efficient results applied to the studied process. The main is to consider a electropneumatic syste
Publicado em: 2005
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21. The development of an open architecture control system for CBN high speed grinding
The aim of this project is the development of an open architecture controlling (OAC) system to be applied in the high speed grinding process using CBN tools. Besides other features, the system will allow a new monitoring and controlling strategy, by the adoption of open architecture CNC combined with multi-sensors, a PC and third-party software. The OAC syst
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2004-03
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22. INTEGRAÇÃO DE UM DISPOSITIVO ÓPTICO DE RASTREAMENTO A UMA FERRAMENTA DE REALIDADE VIRTUAL / INTEGRATING AN OPTICAL TRACKING DEVICE WITH A VIRTUAL REALITY TOOLKIT
Virtual reality systems require tracking devices that do not harm the application immersive sensation. With the spread of digital cameras, the optical tracking of users` movement has been firmed as a new area of research. This work presents the integration of an optical tracking device with a virtual reality application development library. The proposed opti
Publicado em: 2004
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23. Proposta de um middleware para monitoramento de situações de emergência em ambientes físicos ou lógicos cientes de contexto.
Ubiquitous computing in which information and services are offered to users in a continuous and non-intrusive way, is widely explored for classroom, meeting rooms, tourist guides, intelligent home and also safety-critical applications: industrial, aviation, metro-train safety, patient monitoring, etc. The advances in heterogeneous visualization and informati
Publicado em: 2004
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24. São Carlos hand, a multifunction upper limb prosthesis: a study of the mechanisms, actuators and sensors / Mão de São Carlos, uma prótese multifunção para membros superiores: um estudo dos mecanismos, atuadores e sensores
Esta tese de Doutorado busca contribuir na formação de subsídios científicos tanto para o projeto de uma prótese antropomórfica para membros superiores, quanto para a criação de um ambiente de treinamento, ou seja, um ambiente virtual de ação e realimentação das sensações, que poderá incorporar os mecanismos, atuadores, sensores ou estimulador
Publicado em: 2002