Unmanned Aerial Vehicle
Mostrando 13-23 de 23 artigos, teses e dissertações.
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13. Propeller-induced Effects on the Aerodynamics of a Small Unmanned Aerial Vehicle
Abstract: The present paper has discussed investigations about the propeller slipstream effects on the aerodynamics of a generic unmanned air vehicle platform in the wind tunnel for a broad advance ratio range. The propeller-induced effects for small unmanned air vehicles are more significantly pronounced than general aviation aircraft, because of their high
J. Aerosp. Technol. Manag.. Publicado em: 2012-12
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14. In-flight collision avoidance controller based only on OS4 embedded sensors
The major goal of this research was the development and implementation of a control system able to avoid collisions during the flight for a mini-quadrotor helicopter, based only on its embedded sensors without changing the environment. However, it is important to highlight that the design aspects must be seriously considered in order to overcome hardware lim
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-09
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15. Projeto de um veículo aéreo não tripulado para pulverização aeroagrícola / Unmanned aerial vehicle design for agricultural aerial spraying
The Unmanned Aerial Vehicles (UAV s) have a variety of applications, wether monitoring of forest fires, power lines, traffic, crowds, but also can be used for aerial target military applications. Even though it is still somewhat restrict to civil application because of lack of regulation, such vehicles are being developed and studied in the academic sphere.
Publicado em: 2011
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16. Image matching and classification for UAV navigation.
Unmanned aerial vehicles, known as UAVs, have evolved over the past two decades to sophisticated aircraft robots able to carry out surveillance, recognition, remote sensing and even attack missions. But there are not many alternatives of autonomous navigation systems for most of these aircraft which still require human intervention to navigate. Devices such
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/11/2010
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17. Image matching and classification for UAV navigation.
Unmanned aerial vehicles, known as UAVs, have evolved over the past two decades to sophisticated aircraft robots able to carry out surveillance, recognition, remote sensing and even attack missions. But there are not many alternatives of autonomous navigation systems for most of these aircraft which still require human intervention to navigate. Devices such
Publicado em: 2010
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18. Análise dos modelos para cálculo de níveis de segurança relacionados à operação de veículos aéreos não tripulados. / Analysis of models for calculation of levels of security related to operation of unmanned aerial vehicles.
There are records of the use of Unmanned Aerial Vehicles (UAVs) used for military activities since the beginning of the 20th century. But that is not the only way to use it; the civil environment is also promising as to the use of this kind of aircraft. More studies and validations have to be performed about the alterations in the safety levels with the inte
Publicado em: 2009
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19. On the use of unmanned aerial vehicle and the development of a data acquisition system of law cost for atmospheric sounding / Utilização de veículos aéreos não tripulados e desenvol-vimento de um sistema de aquisição de dados de baixo custo para sondagem atmosférica
This work describes the construction of an unmanned aerial vehicle (UAV) with electrical propulsion and instrumentation in order to obtain the vertical and horizontal profiles by measuring temperature, pressure, and GPS location, in surface atmosphere layer between two heterogeneous surfaces near terrain. Using embedded electronic, one developed and built a
Publicado em: 2008
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20. Geração de trajetórias para veículos aéreos autônomos não-tripulados
In this work a study on the problem of the trajectory generation for unmanned aerial vehicles is carried through. The main objective is to provide tools of path planning for aerial robots, taking into account some of its main physical constraints of movement. For this, some of the more used techniques for motion planning of grounded robots are argued initial
Publicado em: 2008
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21. THE DEVELOPMENT OF UNMANNED AERIAL VEHICLE FOR AGRICULTURAL FARM PURPOSES / DESENVOLVIMENTO DE UM VEÍCULO AÉREO NÃO TRIPULADO PARA APLICAÇÃO EM AGRICULTURA DE PRECISÃO
Este trabalho apresenta o desenvolvimento dos veículos aéreos não tripulados (VANT) como uma importante opção para o monitoramento e sensoriamento das atividades agrícola. Sua aplicação em missões de reconhecimento vem sendo favorecida e facilitada pelo atual estágio de desenvolvimento tecnológico, principalmente pela redução do custo e do taman
Publicado em: 2007
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22. Methodologies definition and validation for the longitudinal dynamic identification of an unmanned robotic airship / Identificação dinamica longitudinal de um dirigivel robotico autonomo
Nos últimos anos tem-se observado um crescente interesse de empresas e instituições de pesquisa pelo desenvolvimento de veículos robóticos, dotados de diferentes níveis de capacidade de operação autônoma, objetivando a execução de diversas tarefas. Dentro deste contexto o CenPRA, Centro de Pesquisas Renato Archer, propôs o Projeto AURORA. O Proje
Publicado em: 2005
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23. Desenvolvimento da infra-estrutura embarcada do projeto AURORA
Unmanned semi-autonomous aerial vehicles present a great and unexplored potential in aerial inspection and research, collecting data &om the environment. Such vehicles allow the user to define the region that must be monitored, data spatial and temporal resolution in which the data must be acquired, and the most adequate type of sensor for each kind of mlSSl
Publicado em: 2001