Embedded Operating Systems
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Mobile Augmented Reality enhances indoor navigation for wheelchair users
Introduction: Individuals with mobility impairments associated with lower limb disabilities often face enormous challenges to participate in routine activities and to move around various environments. For many, the use of wheelchairs is paramount to provide mobility and social inclusion. Nevertheless, they still face a number of challenges to properly functi
Res. Biomed. Eng.. Publicado em: 24/05/2016
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2. Coplanar waveguide-fed ultra-wideband planar antenna with WLAN-band rejection
A compact coplanar waveguide (CPW)-fed ultra-wideband (UWB) antenna is proposed with band-notched characteristic. The antenna has compact size of 29 x 31 mm². A novel wide polygon-slot is inserted on the antenna to obtain good impedance matching and wide bandwidth. A tapered radiating patch is placed inside the polygon-slot. An embedded C-slot in the radiat
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2013-06
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3. Uma plataforma para ensino e treinamento em desenvolvimento de sistemas operacionais / A learning and training platform on operating systems development
This work aims at proposing and developing a learning and training platform on design and implementation of operating systems. After more than a decade of hegemony of a few commercial products, the establishment of free software paradigm and the proliferation of embedded architectures capable of running an operating system (OS) increase the demand for specia
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/06/2012
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4. Aplicabilidade de sistemas operacionais de tempo real (RTOS) para sistemas embarcados de baixo custo e pequeno porte / Real-time operating system aplicability for small and low cost embedded systems
Sistemas embarcados ganham cada vez mais espaço devido ao aumento da demanda por novas funções em equipamentos, às normas regulatórias e às novas necessidades dos consumidores e do mercado. Esse aumento nos requisitos aumenta o tamanho e a complexidade dos softwares embarcados cuja importância cresce significativamente. Sistemas operacionais de tempo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2011
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5. Proposta de melhoria de tempo de resposta para o protocolo FTT-CAN : estudo de caso em aplicação automotiva
Embedded computing systems have become widely used in many areas. The greater part of those systems has time constraints and therefore they can be characterized as real time embedded systems. Nowadays, distributed computing has reached the embedded application, where some fieldbuses are already being used as communication platforms. Some important researches
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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6. Comparative analysis of voltage regulation strategies in power distribution systems with distributed generators / Análise comparativa de estratégias para regulação de tensão em sistemas de distribuição de energia elétrica na presença de geradores distribuídos
In order to assure that the installation of distributed generation would improve the operation of distribution and subtransmission networks, its technical impacts should be carefully studied, especially in distribution networks, which were originally designed to operate with unidirectional power flow. Among these impacts, the influence of distributed generat
Publicado em: 2010
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7. DevC: uma linguagem de suporte ao desenvolvimento concorrente de device drives e modelos de controladores de entrada e saÃda
Modern electronic products incorporate several features, combining mobility, computational power, a great capacity for communication and facility for interfacing. Nevertheless, integrating such functionalities increases the complexity of the design. The design of such products includes an embedded system that implements their functionalities in a combined so
Publicado em: 2009
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8. Hardware in the loop simulation applied to semi-autonomous underwater vehicles. / Simulação com hardware in the loop aplicada a veículos submarinos semi-autônomos.
Unmanned Underwater Vehicles (UUVs) have many commercial, military, and scientific applications because of their potential capabilities and significant costperformance improvements over traditional means of obtaining valuable underwater information The development of a reliable sampling and testing platform for these vehicles requires a thorough system desig
Publicado em: 2008
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9. A VPN (Virtual Private Network) design based on reconfigurable computing and applied to mobile robots / Projeto de uma VPN(Rede Privada Virtual) baseada em computação reconfigurável e aplicada a robôs móveis
This work designs a system that implements a VPN using FPGA (Field Programmable Gate Array) reprogrammable circuits, which are the basis of reconfigurable computing. VPNs use cryptography to allow private communication between parts. In this manner, the computational cost of the cryptography is handled by the hardware, achieving great performance and allowin
Publicado em: 2007
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10. A time Petri net based approach for software synthesis in Hard Real-Time embedded systems with multiple processors / A time Petri net based approach for software synthesis in Hard Real-Time embedded systems with multiple processors
Atualmente, sistemas embarcados sÃo ubÃquos. Em outras palavras, eles estÃo em todos os lugares. Desde utilitÃrios domÃsticos (ex: fornos microondas, refrigeradores, videocassetes, mÃquinas de fax, mÃquinas de lavar roupa, alarmes) atà equipamentos militares (ex: mÃsseis guiados, satÃlites espiÃes, sondas espaciais, aeronaves), nÃs podemos encont
Publicado em: 2006
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11. Implementação de um sistema de iniciação de sessão multimidia para a plataforma Linux
This dissertation deals with modeling and development of Voice over IP (VoIP) system for multiplatform, using the SIP protocol to accomplish the session. The Session Initiation Protocol (SIP), used in the development of this system, is a protocol for creating, modifying and terminating calls between two or more participants, and it has received great support
Publicado em: 2005