You searched for subject:(UAV).
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1.
Paloniemi, Olli.
Reaaliaikakäyttöjärjestelmä multikopterin lennonohjaustietokoneessa
.
Degree: 2015, Theseus
URL: http://www.theseus.fi/handle/10024/93516 
► Tämän opinnäytetyön tarkoituksena oli tarkastella multikopterin lennonohjaustietokoneelle tehdyn laiteohjelmiston suunnitteluun liittyviä asioita. Laiteohjelmiston pohjana toimi avoimen lähdekoodin FreeRTOS-reaaliaikakäyttöjärjestelmä. Laiteohjelmiston testaus tapahtui tarkoitusta varten rakennetussa lennonohjaustietokoneessa,…
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▼ Tämän opinnäytetyön tarkoituksena oli tarkastella multikopterin lennonohjaustietokoneelle tehdyn laiteohjelmiston suunnitteluun liittyviä asioita. Laiteohjelmiston pohjana toimi avoimen lähdekoodin FreeRTOS-reaaliaikakäyttöjärjestelmä. Laiteohjelmiston testaus tapahtui tarkoitusta varten rakennetussa lennonohjaustietokoneessa, joka asennettiin neliroottoriseen multikopteriin.
Työssä tutkittiin multikopterien ohjausmenetelmiä. Radio-ohjauselektroniikasta tuttua pulssinleveyden modulaatioon perustuvaa signaalia käytettiin yhdistämään lennonohjaustietokone multikopterin muihin komponentteihin. Lennonohjaustietokoneen antureita ja radiovastaanottimelta tulevaa ohjausta hyödynnettiin PID-säätimissä, joiden on tarkoitus vakauttaa multikopterin lento. Antureiden mittaustulokset yhdistettiin anturifuusiolla käyttäen Complementary-suodinta. Säätimiä ja anturifuusiota käytettiin eri ohjaustiloissa, jotka määrittävät sen, miten multikopterin lennonohjausjärjestelmä toimii. Lennonohjausjärjestelmän toiminnan reaaliaikaisuus todettiin mittaamalla käyttöjärjestelmän suoritus- ja vasteajat.
Opinnäytetyön avulla saatiin tietoa muun muassa säätötekniikasta, anturijärjestelmistä, anturifuusiosta, radio-ohjauksesta ja telemetriasta. Etenkin tietoa saatiin näiden kaikkien osa-alueiden soveltamisesta laiteohjelmistossa, jonka perustana on reaaliaikakäyttöjärjestelmä. Tämän opinnäytetyön tekemisessä syntyneitä ideoita on tarkoitus hyödyntää lennonohjausjärjestelmän jatkokehityksessä. Niistä voi olla hyötyä myös muun tyyppisten sulautettujen järjestelmien ja näiden laiteohjelmistojen kehityksessä, jotka ovat riippuvaisia samoista teknologioista.; The purpose of this bachelor’s thesis was to study the design and implementation of a firmware for a multirotor flight control computer. The firmware of the flight control computer was based on FreeRTOS, an open source real-time operating system. The testing of the software was done in a purpose built flight control computer, which was installed on a quadcopter.
The control methods of a multirotor were studied. Pulse-width modulation, a technique that is used frequently in radio-controlled electronics, was utilized to interconnect the components of the multirotor. The sensors on the flight control computer and the control signal from the radio-control receiver were utilized in PID-control algorithm, to stabilize the flight of the multirotor. Sensor data was combined using Complementary filter, a sensor fusion algorithm. The combinations of control and sensor fusion algorithms were used to create different flight control modes. The flight control modes define how the flight control system operates. Real-time operation of the flight control system was verified by measuring the execution and response times of the operating system.
This thesis provides information about control technology, sensor systems, sensor fusion, radio-control and telemetry. Information was obtained particularly about the combination of all these technologies in a firmware, which is based on a real-time operating…
Subjects/Keywords: multikopteri;
UAV
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APA (6th Edition):
Paloniemi, O. (2015). Reaaliaikakäyttöjärjestelmä multikopterin lennonohjaustietokoneessa
. (Thesis). Theseus. Retrieved from http://www.theseus.fi/handle/10024/93516
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Paloniemi, Olli. “Reaaliaikakäyttöjärjestelmä multikopterin lennonohjaustietokoneessa
.” 2015. Thesis, Theseus. Accessed February 23, 2020.
http://www.theseus.fi/handle/10024/93516.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Paloniemi, Olli. “Reaaliaikakäyttöjärjestelmä multikopterin lennonohjaustietokoneessa
.” 2015. Web. 23 Feb 2020.
Vancouver:
Paloniemi O. Reaaliaikakäyttöjärjestelmä multikopterin lennonohjaustietokoneessa
. [Internet] [Thesis]. Theseus; 2015. [cited 2020 Feb 23].
Available from: http://www.theseus.fi/handle/10024/93516.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Paloniemi O. Reaaliaikakäyttöjärjestelmä multikopterin lennonohjaustietokoneessa
. [Thesis]. Theseus; 2015. Available from: http://www.theseus.fi/handle/10024/93516
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
2.
Blomberg, Andreas.
Utvärdering av mätosäkerheten vid georeferering med UAS och Post Processed Kinematic-GNSS.
Degree: IT and Land Management, 2016, University of Gävle
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-22145
► UAS has been become a very popular tool in surveying and evaluation of the systems measurement uncertainties are necessary. The most common method for…
(more)
▼ UAS has been become a very popular tool in surveying and evaluation of the systems measurement uncertainties are necessary. The most common method for georeferencing UAS data is to use ground control points (GCP) in order to use them in block adjustment. In recent years’ new techniques for direct georeferencing with UAS have been presented, which in theory means that the position of the UAS can be determined accurately enough and therefore GCP’s can be excluded. This study evaluates uncertainties of the UAS Freya from SmartPlanes that don’t need GCP’s for georeferencing. The technique applied in the evaluation is based on Post Processed Kinematic (PPK) for coordinate determination of the UAS, which means that the collected GNSS data can be post processed using a reference station. The test area was a 280 x 320 m block in the north end of Gävle airport, Sweden. Each flight is conducted in two orthogonal blocks and evaluated in three different ways against the 16 GCP. The altitude was about 90 m for all flights. The uncertainty of the PPK-technique is tested and evaluated with three different methods to ensure both accuracy and potential use. In total five flights were assessed and evaluated with Agisoft PhotoScan against 16 GCP spread over the area. The position of each GCP’s was determined with four independent network RTK measurements. The results show that the georeferencing with the PPK-technique and block adjustment has potential to meet the uncertainties in level with indirect georeferencing using GCP. The results show very similar planimetric uncertainties, around 0,020 m in RMS, for all evaluations with the PPK-technique. The results of the uncertainty in height is more scattered where the two lowest results in a RMS under 0,015 m and the highest over 0,100 m for the difference against the 16 GCP. It is possible to achieve low uncertainties with the method without the use of GCP. For areas where establishment of GCP is not possible, using UAS equipped with PPKtechnology provides a very suitable alternative to use. The results show relatively large differences between the evaluations and in order to determine the exact cause of them, further studies are required.
Den starka teknikutvecklingen för UAS resulterar i flera nya produkter på marknaden och för att utvärdera deras mätosäkerheter krävs det kontroller av systemen. Den vanligaste metoden vid georeferering med UAS är att använda koordinatbestämda flygsignaler på marken. På senare år har metoder för direkt georeferering presenterats, vilket i teorin innebär att positionen för UAS kan bestämmas så pass noggrant att flygsignaler kan uteslutas. I denna studie utvärderas mätosäkerheter för Freya, ett UAS från SmartPlanes som med hjälp av bra positionering och blockutjämning ska kunna användas för georeferering utan flygsignalering. Systemet från Smartplanes bygger på Post Processed Kinematic (PPK) för koordinatbestämning, vilket innebär att insamlat GNSS data kan efterberäknas med korrektioner från en referensstation. Mätosäkerheten för…
Subjects/Keywords: UAV; georeferencing; GCP; UAS; georeferering; UAV
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APA (6th Edition):
Blomberg, A. (2016). Utvärdering av mätosäkerheten vid georeferering med UAS och Post Processed Kinematic-GNSS. (Thesis). University of Gävle. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-22145
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Blomberg, Andreas. “Utvärdering av mätosäkerheten vid georeferering med UAS och Post Processed Kinematic-GNSS.” 2016. Thesis, University of Gävle. Accessed February 23, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-22145.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Blomberg, Andreas. “Utvärdering av mätosäkerheten vid georeferering med UAS och Post Processed Kinematic-GNSS.” 2016. Web. 23 Feb 2020.
Vancouver:
Blomberg A. Utvärdering av mätosäkerheten vid georeferering med UAS och Post Processed Kinematic-GNSS. [Internet] [Thesis]. University of Gävle; 2016. [cited 2020 Feb 23].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-22145.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Blomberg A. Utvärdering av mätosäkerheten vid georeferering med UAS och Post Processed Kinematic-GNSS. [Thesis]. University of Gävle; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-22145
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
3.
Santos, Diogo Afonso Paulitos dos.
Os UAV na componente terrestre.
Degree: 2009, Academia Militar
URL: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/11918
► O trabalho que se apresenta analisa um modelo de implementação de uma Unidade equipada com UAVs que se adeque à Componente Terrestre, estudando a que…
(more)
▼ O trabalho que se apresenta analisa um modelo de implementação de uma
Unidade equipada com UAVs que se adeque à Componente Terrestre, estudando a
que Unidade deverá estar subordinada uma força de UAVs, que tipologia de UAVs são
necessários, que escalões deverão constituir e por fim apresenta-se um projecto da
Academia da Força Aérea para a produção de UAVs.
Para a elaboração deste trabalho recorreu-se essencialmente à pesquisa
bibliográfica, dando primazia a estudos de militares de Forças Armadas nacionais e do
estrangeiro, a manuais militares de referência e a vários documentos de diversas
organizações. De forma a complementar a pesquisa bibliográfica em assuntos
específicos foram realizadas duas entrevistas, nomeadamente no que concerne ao
modelo de UAVs a implementar na Componente Terrestre e ainda sobre o Programa
de Investigação e Tecnologia de Veículos Aéreos Não Tripulados.
Do estudo subjacente a este trabalho conclui-se que a Componente Terrestre
Portuguesa ainda não está implementada uma estrutura com as capacidades
Intelligence, Surveillance, Target Aquisition, Reconaissance contudo o Exército
Português pretende desenvolver uma estrutura que contemple estas capacidades. Os
estudos que acompanham a implementação desta estrutura, incluem na sua
constituição o Pelotão Unmanned Aerial Vehicle Low Altitude Medium Endurance.
Relativamente ao Pelotão Unmanned Aerial Vehicle o estudo aponta para que
este seja constituído por Unmanned Aerial Vehicles do tipo Mini e Low Altitude
Medium Endurance. As aeronaves do tipo Mini deverão constituir duas secções que
apoiem os batalhões de manobra e o Esquadrão de Reconhecimento. As aeronaves
do tipo Low Altitude Medium Endurance destinam-se a apoiar o escalão brigada
enquadrados numa estrutura Intelligence, Surveillance, Target Aquisition,
Reconaissance.
No final desta dissertação apresenta-se o Programa de Investigação e
Tecnologia de Veículos Aéreos Não Tripulados da Academia da Força Aérea do qual
são consideradas como hipóteses de aquisição potencialmente vantajosas dois tipos
de UAV, o Asa-Voadora (Mini) e o Antex-X03 (Low Altitude Medium Endurance).
Subjects/Keywords: Vigilância; UAV; Informações
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APA (6th Edition):
Santos, D. A. P. d. (2009). Os UAV na componente terrestre. (Thesis). Academia Militar. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/11918
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Santos, Diogo Afonso Paulitos dos. “Os UAV na componente terrestre.” 2009. Thesis, Academia Militar. Accessed February 23, 2020.
https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/11918.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Santos, Diogo Afonso Paulitos dos. “Os UAV na componente terrestre.” 2009. Web. 23 Feb 2020.
Vancouver:
Santos DAPd. Os UAV na componente terrestre. [Internet] [Thesis]. Academia Militar; 2009. [cited 2020 Feb 23].
Available from: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/11918.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Santos DAPd. Os UAV na componente terrestre. [Thesis]. Academia Militar; 2009. Available from: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/11918
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of North Texas
4.
Coelho, Gavin.
Ota-quadrotor: An Object-tracking Autonomous Quadrotor for Real-time Detection and Recognition.
Degree: 2012, University of North Texas
URL: https://digital.library.unt.edu/ark:/67531/metadc115056/
► The field of robotics and mechatronics is advancing at an ever-increasing rate and we are starting to see robots making the transition from the factories…
(more)
▼ The field of robotics and mechatronics is advancing at an ever-increasing rate and we are starting to see robots making the transition from the factories to the workplace and homes as cost is reduced and they become more useful. In recent years quadrotors have become a popular unmanned air vehicle (
UAV) platform. These UAVs or micro air vehicles (MAV) are being used for many new and exciting applications such as aerial monitoring of wildlife, disaster sites, riots and protests. They are also being used in the film industry, as they are significantly cheaper means of getting aerial footage. While quadrotors are not extremely expensive a good system can cost in the range of 3000 - 8000 and thus too costly as a research platform for many. There are a number of cheaper open source platforms. The ArduCopter is under constant development, has the largest community and is inexpensive making it an ideal platform to work with. The goal of this thesis was to implement video processing on a ground control station allowing for the ArduCopter to track moving objects. This was achieved by using the OpenCV video-processing library to implement object tracking and the MAVLink communication protocol, available on the ArduCopter platform, for communication.
Advisors/Committee Members: Kougianos, Elias, Mohanty, Saraju P., Foster , Phillip, Nasrazadani, Seifollah.
Subjects/Keywords: Quadrotor; autonomous; UAV
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San Jose State University
5.
Hartney, Christopher.
Design of a Small Solar-Powered Unmanned Aerial Vehicle.
Degree: MS, Mechanical and Aerospace Engineering, 2011, San Jose State University
URL: https://doi.org/10.31979/etd.2nzx-arxy
;
https://scholarworks.sjsu.edu/etd_theses/4093
► This thesis reports on a conceptual design of a solar-powered unmanned aerial vehicle (UAV) with a mass no more than 10 kg. This UAV…
(more)
▼ This thesis reports on a conceptual design of a solar-powered unmanned aerial vehicle (UAV) with a mass no more than 10 kg. This UAV will have the necessary equipment to study wildfires in California, including a Global Positioning System (GPS) and infrared cameras. Using similar aircraft in the same weight class, the geometry of the aircraft was calculated. A weight analysis and a power sensitivity analysis indicated that this aircraft will generate 350 W of power, 114.6 W greater than the power available to fly. A stability and controls analysis was also done, and the required tail area needed for stability was calculated. Using XFLR5, which is a software package that studies aerodynamic properties, a drag polar estimate was calculated and compared with basic aircraft design methods to verify the accuracy of the results.
Subjects/Keywords: Aircraft; Solar; UAV
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APA (6th Edition):
Hartney, C. (2011). Design of a Small Solar-Powered Unmanned Aerial Vehicle. (Masters Thesis). San Jose State University. Retrieved from https://doi.org/10.31979/etd.2nzx-arxy ; https://scholarworks.sjsu.edu/etd_theses/4093
Chicago Manual of Style (16th Edition):
Hartney, Christopher. “Design of a Small Solar-Powered Unmanned Aerial Vehicle.” 2011. Masters Thesis, San Jose State University. Accessed February 23, 2020.
https://doi.org/10.31979/etd.2nzx-arxy ; https://scholarworks.sjsu.edu/etd_theses/4093.
MLA Handbook (7th Edition):
Hartney, Christopher. “Design of a Small Solar-Powered Unmanned Aerial Vehicle.” 2011. Web. 23 Feb 2020.
Vancouver:
Hartney C. Design of a Small Solar-Powered Unmanned Aerial Vehicle. [Internet] [Masters thesis]. San Jose State University; 2011. [cited 2020 Feb 23].
Available from: https://doi.org/10.31979/etd.2nzx-arxy ; https://scholarworks.sjsu.edu/etd_theses/4093.
Council of Science Editors:
Hartney C. Design of a Small Solar-Powered Unmanned Aerial Vehicle. [Masters Thesis]. San Jose State University; 2011. Available from: https://doi.org/10.31979/etd.2nzx-arxy ; https://scholarworks.sjsu.edu/etd_theses/4093
6.
Guay, Rudy.
The Dynamic Measurement of Unmanned Aerial Vehicle Radar
Cross Section.
Degree: MASc (Master of Applied Science/Ma??trise ??s sciences
appliqu??es), Electrical and Computer Engineering/G??nie ??lectrique
et informatique, 2016, Royal Military College of Canada
URL: http://hdl.handle.net/11264/901
► The radar cross-section (RCS) is a key parameter used to determine whether or not an airborne target will be detected by a radar at a…
(more)
▼ The radar cross-section (RCS) is a key parameter used
to determine whether or not an airborne target will be detected by
a radar at a given range. The accurate measurement of the RCS is of
particular importance for the detection of miniature unmanned
aerial vehicles (UAV) because the radar return strength is low.
Although the UAV's RCS may be determined statically in an anechoic
chamber, it may be advantageous to measure it whilst the target is
in motion due to the greater resemblance with an operational
environment. However, the dynamic measurement of RCS adds
complexity to the measurement system because of the requirement to
track the UAV in-flight. Furthermore, vibrations and moving parts
modulate the return echo, which implies that the RCS can only be
characterized statistically.
This work describes the design of
the Dynamic RCS Measurement System used to measure the RCS of UAVs
flying indoors. The results of measurements of a test UAV and
comparison with static measurements show that the Dynamic RCS
Measurement System is a viable option to investigate how dynamic
effects affect the RCS of a flying UAV and to compute probabilities
of detection.
La surface ??quivalente radar (SER) est un param??tre
important pour d??terminer si une cible va ??tre d??tect??e par un
radar ?? une certaine port??e. La SER est particuli??rement
importante pour la d??tection de petits drones, car la puissance du
retour radar est faible. La SER peut ??tre d??termin??e
statiquement dans une chambre an??cho??que. Il peut n??anmoins
??tre avantageux de la mesurer lorsque la cible est mobile en
raison de la plus grande ressemblance avec un environnement
op??rationnel. Cependant, mesurer dynamiquement la SER ajoute de la
complexit?? au syst??me de mesure en raison de la n??cessit?? de
traquer le drone en vol. De plus, les vibrations et pi??ces mobiles
du drone modulent le retour radar. Ceci implique que la SER peut
seulement ??tre caract??ris??e statistiquement.
Ce travail
d??crit le syst??me de mesure de la SER dynamique qui est utilis??
pour mesurer la SER de drones volant ?? l'int??rieur. Les
r??sultats obtenus en testant le syst??me montrent qu'il est une
option viable pour d??terminer l'impact des effets dynamiques sur
la SER d'un drone en vol et pour calculer des probabilit??s de
d??tection.
Graduate
Advisors/Committee Members: Royal Military College of Canada / Coll??ge militaire royal du Canada, Bray, Joey.
Subjects/Keywords: radar; rcs; UAV; drones
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APA ·
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Manager
APA (6th Edition):
Guay, R. (2016). The Dynamic Measurement of Unmanned Aerial Vehicle Radar
Cross Section. (Masters Thesis). Royal Military College of Canada. Retrieved from http://hdl.handle.net/11264/901
Chicago Manual of Style (16th Edition):
Guay, Rudy. “The Dynamic Measurement of Unmanned Aerial Vehicle Radar
Cross Section.” 2016. Masters Thesis, Royal Military College of Canada. Accessed February 23, 2020.
http://hdl.handle.net/11264/901.
MLA Handbook (7th Edition):
Guay, Rudy. “The Dynamic Measurement of Unmanned Aerial Vehicle Radar
Cross Section.” 2016. Web. 23 Feb 2020.
Vancouver:
Guay R. The Dynamic Measurement of Unmanned Aerial Vehicle Radar
Cross Section. [Internet] [Masters thesis]. Royal Military College of Canada; 2016. [cited 2020 Feb 23].
Available from: http://hdl.handle.net/11264/901.
Council of Science Editors:
Guay R. The Dynamic Measurement of Unmanned Aerial Vehicle Radar
Cross Section. [Masters Thesis]. Royal Military College of Canada; 2016. Available from: http://hdl.handle.net/11264/901
Penn State University
7.
Harkins, Joseph.
Automatic Controller Synthesis for a Reconfigurable UAV.
Degree: 2017, Penn State University
URL: https://etda.libraries.psu.edu/catalog/13996jvh5789
► This thesis describes the development of an adaptable control architecture that can be used to automatically synthesize inner-loop controllers for new configurations of modular aircraft.…
(more)
▼ This thesis describes the development of an adaptable control architecture that can be used to automatically synthesize inner-loop controllers for new configurations of modular aircraft. This will allow for new configurations to be flown without the need for extensive flight testing to tune the controller gains for favorable flying characteristics. This is achieved by breaking the aircraft geometry into finite strips and calculating the forces and moments on each strip using 2D airfoil approximations. The contributions of each finite strip are then summed to obtain the approximate equations of motion for the aircraft. These equations are then linearized about a cruise setpoint. This linearized dynamics model for the aircraft is then used to synthesize inner-loop controllers for roll, pitch, and yaw. These controllers can be implemented within an on-board autopilot system, therefore enabling autonomous flight 'out of the box'. The performance of these controllers was simulated and compared to controllers generated using an established vortex-lattice code to determine the accuracy of the finite strip method.
Advisors/Committee Members: Jacob Langelaan, Thesis Advisor.
Subjects/Keywords: Modular Aircraft; UAV; Controls; Aerodynamics
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APA ·
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Manager
APA (6th Edition):
Harkins, J. (2017). Automatic Controller Synthesis for a Reconfigurable UAV. (Thesis). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/13996jvh5789
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Harkins, Joseph. “Automatic Controller Synthesis for a Reconfigurable UAV.” 2017. Thesis, Penn State University. Accessed February 23, 2020.
https://etda.libraries.psu.edu/catalog/13996jvh5789.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Harkins, Joseph. “Automatic Controller Synthesis for a Reconfigurable UAV.” 2017. Web. 23 Feb 2020.
Vancouver:
Harkins J. Automatic Controller Synthesis for a Reconfigurable UAV. [Internet] [Thesis]. Penn State University; 2017. [cited 2020 Feb 23].
Available from: https://etda.libraries.psu.edu/catalog/13996jvh5789.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Harkins J. Automatic Controller Synthesis for a Reconfigurable UAV. [Thesis]. Penn State University; 2017. Available from: https://etda.libraries.psu.edu/catalog/13996jvh5789
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Texas A&M University
8.
Rogers, Cameron Tyler.
Modular Heterogeneous Multi-Agent Control Framework with Integrated Payloads.
Degree: MS, Aerospace Engineering, 2017, Texas A&M University
URL: http://hdl.handle.net/1969.1/165970
► Small unmanned aircraft are being used in an increasing number of applications ranging from emergency response to parcel delivery. Many of these applications are benefited…
(more)
▼ Small unmanned aircraft are being used in an increasing number of applications ranging from emergency response to parcel delivery. Many of these applications are benefited when employed as a multiple-vehicle operation. Such operations often require tight cooperation between heterogeneous vehicles and often depend on integration with sensors and payloads. Multi-agent control algorithms can be implemented to control such systems but often require the development of an underlying vehicle communications framework in addition to a sensors and payloads communications framework. This thesis presents a single unified modular framework, named Clark, and supports heterogeneous multi-agent control and sensor/payload integration. Clark provides a wireless network between agents without relying on pre-existing communications infrastructure, and provides software interfaces for connecting to a variety of payloads. This thesis first reviews small unmanned aircraft systems (SUAS), multi-agent control, multi-agent control testbeds, and wireless networking technologies used on SUAS. Systems engineering is then employed to develop an Identified Need, Concept of Operations (ConOps), and requirements. All Defined, Derived, and Design Requirements are explained and justified. Some requirements are highlighted to demonstrate key features of the Clark framework. The software architecture is explained in detail in a top-down approach. Hardware is selected for prototyping and shown to meet the requirements. Bench tests, ground tests, and flight tests are conducted to verify the framework?s ability to communicate between agents and affect control. Ground testing includes a multi-agent cooperative mission while flight testing features two and three agent missions. Test results are presented and demonstrate the candidacy of Clark as a modular heterogeneous multi-agent control framework with integrated payloads.
Advisors/Committee Members: Valasek, John (advisor), Huff, Gregory H (committee member), Benedict, Moble (committee member), Kumar, P. R. (committee member).
Subjects/Keywords: Multi-agent control; UAV; UAS
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APA (6th Edition):
Rogers, C. T. (2017). Modular Heterogeneous Multi-Agent Control Framework with Integrated Payloads. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/165970
Chicago Manual of Style (16th Edition):
Rogers, Cameron Tyler. “Modular Heterogeneous Multi-Agent Control Framework with Integrated Payloads.” 2017. Masters Thesis, Texas A&M University. Accessed February 23, 2020.
http://hdl.handle.net/1969.1/165970.
MLA Handbook (7th Edition):
Rogers, Cameron Tyler. “Modular Heterogeneous Multi-Agent Control Framework with Integrated Payloads.” 2017. Web. 23 Feb 2020.
Vancouver:
Rogers CT. Modular Heterogeneous Multi-Agent Control Framework with Integrated Payloads. [Internet] [Masters thesis]. Texas A&M University; 2017. [cited 2020 Feb 23].
Available from: http://hdl.handle.net/1969.1/165970.
Council of Science Editors:
Rogers CT. Modular Heterogeneous Multi-Agent Control Framework with Integrated Payloads. [Masters Thesis]. Texas A&M University; 2017. Available from: http://hdl.handle.net/1969.1/165970
California State University – Sacramento
9.
Miracle, Brian Parker.
On the design of a small solar powered unmanned aerial vehicle.
Degree: MS, Mechanical Engineering, 2012, California State University – Sacramento
URL: http://hdl.handle.net/10211.9/1498
► Unmanned aerial vehicles are seeing increasing use in a variety of applications including warfare, imaging, communication, search and rescue, meteorology, agriculture, and more. For most…
(more)
▼ Unmanned aerial vehicles are seeing increasing use in a variety of applications including warfare, imaging, communication, search and rescue, meteorology, agriculture, and more. For most applications, flight endurance on the order of days, weeks, or even years is desirable. Photovoltaic cells represent an emerging and viable method of powering unmanned aerial vehicles on such long endurance flights. This study investigates the design optimization of a small solar powered unmanned aerial vehicle. The aircraft is intended to weigh less than twenty pounds and to fly for 24 hours at low altitude over Sacramento, California during the summer months of May through September. Photovoltaic technology and the characterization of a thin-film photovoltaic cell are reviewed. The majority of the paper describes the methods used to implement a continuous design approach in which the battery pack power, photovoltaic efficiency, and aircraft weight were determined for a given aspect ratio and wing loading. The optimum aspect ratio and wing loading to minimize both battery pack power and photovoltaic efficiency are identified and the final design is discussed. The results indicate that aspect ratio exhibits a strong inverse relationship with aircraft weight, wing loading is directly related to minimum required photovoltaic efficiency, and that minimum aircraft weight does not translate to minimum power required.
Advisors/Committee Members: Tuzcu, Ilhan.
Subjects/Keywords: UAV; Optimization; Photovoltaic; Aircraft
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APA (6th Edition):
Miracle, B. P. (2012). On the design of a small solar powered unmanned aerial vehicle. (Masters Thesis). California State University – Sacramento. Retrieved from http://hdl.handle.net/10211.9/1498
Chicago Manual of Style (16th Edition):
Miracle, Brian Parker. “On the design of a small solar powered unmanned aerial vehicle.” 2012. Masters Thesis, California State University – Sacramento. Accessed February 23, 2020.
http://hdl.handle.net/10211.9/1498.
MLA Handbook (7th Edition):
Miracle, Brian Parker. “On the design of a small solar powered unmanned aerial vehicle.” 2012. Web. 23 Feb 2020.
Vancouver:
Miracle BP. On the design of a small solar powered unmanned aerial vehicle. [Internet] [Masters thesis]. California State University – Sacramento; 2012. [cited 2020 Feb 23].
Available from: http://hdl.handle.net/10211.9/1498.
Council of Science Editors:
Miracle BP. On the design of a small solar powered unmanned aerial vehicle. [Masters Thesis]. California State University – Sacramento; 2012. Available from: http://hdl.handle.net/10211.9/1498
10.
Al Younes, Younes.
Model-free approach for control, fault diagnosis, and fault-tolerant control : with application to a quadrotor UAV : Approche sans modèle pour la commande, le diagnostic et la tolérance aux fautes : application à un quadrotor.
Degree: Docteur es, Sciences pour l'ingénieur. Automatique, 2016, Amiens
URL: http://www.theses.fr/2016AMIE0028
► Les principaux travaux développés dans cette thèse traitent de la commande, du diagnostic et de la tolérance aux fautes utilisant le concept de la commande…
(more)
▼ Les principaux travaux développés dans cette thèse traitent de la commande, du diagnostic et de la tolérance aux fautes utilisant le concept de la commande sans modèle récemment proposé dans la littérature. Les méthodes développées sont testées en temps réel et validées sur un quadrotor. Dans un premier temps, le modèle du quadrotor est présenté et analysé dans l'objectif de concevoir et implanter une loi de commande robuste aux perturbations et aux incertitudes de modèle. Pour cela, le concept de commande sans modèle est utilisé. Ce concept est basé sur la détermination d'une loi de commande calculée à partir de modèles ultra-locaux ajoutée à la commande calculée par des régulateurs classiques. Une technique utilisant le régulateur linéaire quadratique ainsi que la technique non linéaire de backstepping avec intégrateur augmentées de ce concept de commande sans modèle ont été proposées. Ces deux approches ont été testées et validées en les appliquant en temps-réel au drone considéré. Une étude comparative des lois de commandes avec et sans l'utilisation du concept de commande sans modèle a été proposée mettant en évidence les avantages de l'utilisation de ce concept. Le diagnostic de défauts est une étape importante pour la commande tolérante aux fautes. Les techniques de diagnostic développées dans cette thèse sont basées sur la génération de résidus issus de la comparaison entre les mesures réelles et les estimations de ces mesures obtenues par des estimateurs. La génération de résidus dépend de la qualité du modèle utilisé ainsi que des perturbations qui peuvent conduire à des fausses alarmes ou des non détections. Une nouvelle technique "d’estimation intelligente" inspirée du concept de commande sans modèle a été proposée et implantée afin de rendre la génération de résidus insensible aux incertitudes de modèle et aux perturbations et ainsi améliorer la décision quant à la présence de défauts. Deux "estimateurs intelligents" ont été proposés en rajoutant à l'observateur d'état classique et l'observateur de Thau un concept inspiré de la technique de commande sans modèle. L'estimation des sorties du système obtenue par l'estimateur intelligent est utilisée afin d'estimer l'amplitude des défauts d'actionneurs et de capteurs. L'estimation des défauts d'actionneurs est basée sur des modèles ultra-locaux. Quant aux défauts de capteurs, un algorithme structure a été proposé pour estimer leur amplitude en utilisant les résidus générés à partir de cet estimateur. Les résultats de détection et estimation de défauts ainsi obtenus sont ensuite utilisés pour compenser l'effet des défauts sur les performances du drone. La commande tolérante aux fautes mise en œuvre permet de modifier la loi de commande par rapport à l'estimation de l'amplitude du défaut d'actionneur, alors que lorsqu'un défaut de capteur est détecté et estimé, la trajectoire de référence est régénérée afin de compenser l'effet du défaut et maintenir le drone sur la trajectoire initialement définie. Les algorithmes proposés ont été implantés et testés sur un…
Advisors/Committee Members: El Hajjaji, Ahmed (thesis director), Rabhi, Abdelhamid (thesis director), Noura, Hassan (thesis director).
Subjects/Keywords: Automatique; FTC; UAV; Quadrotor
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APA (6th Edition):
Al Younes, Y. (2016). Model-free approach for control, fault diagnosis, and fault-tolerant control : with application to a quadrotor UAV : Approche sans modèle pour la commande, le diagnostic et la tolérance aux fautes : application à un quadrotor. (Doctoral Dissertation). Amiens. Retrieved from http://www.theses.fr/2016AMIE0028
Chicago Manual of Style (16th Edition):
Al Younes, Younes. “Model-free approach for control, fault diagnosis, and fault-tolerant control : with application to a quadrotor UAV : Approche sans modèle pour la commande, le diagnostic et la tolérance aux fautes : application à un quadrotor.” 2016. Doctoral Dissertation, Amiens. Accessed February 23, 2020.
http://www.theses.fr/2016AMIE0028.
MLA Handbook (7th Edition):
Al Younes, Younes. “Model-free approach for control, fault diagnosis, and fault-tolerant control : with application to a quadrotor UAV : Approche sans modèle pour la commande, le diagnostic et la tolérance aux fautes : application à un quadrotor.” 2016. Web. 23 Feb 2020.
Vancouver:
Al Younes Y. Model-free approach for control, fault diagnosis, and fault-tolerant control : with application to a quadrotor UAV : Approche sans modèle pour la commande, le diagnostic et la tolérance aux fautes : application à un quadrotor. [Internet] [Doctoral dissertation]. Amiens; 2016. [cited 2020 Feb 23].
Available from: http://www.theses.fr/2016AMIE0028.
Council of Science Editors:
Al Younes Y. Model-free approach for control, fault diagnosis, and fault-tolerant control : with application to a quadrotor UAV : Approche sans modèle pour la commande, le diagnostic et la tolérance aux fautes : application à un quadrotor. [Doctoral Dissertation]. Amiens; 2016. Available from: http://www.theses.fr/2016AMIE0028
Penn State University
11.
Chakrabarty, Anjan.
FLIGHT PATH PLANNING OF UAV BASED ON ATMOSPHERIC ENERGY
HARVESTING.
Degree: MS, Aerospace Engineering, 2010, Penn State University
URL: https://etda.libraries.psu.edu/catalog/11226
► This thesis presents an approach to planning long distance soaring trajectories which exploit atmospheric energy to enable long distance, long duration flights by small and…
(more)
▼ This thesis presents an approach to planning long
distance soaring trajectories which exploit atmospheric energy to
enable long distance, long duration flights by small and micro
unmanned aerial vehicles. It introduces the energy map, which
computes the minimum total energy required to reach the goal from
an arbitrary starting point while accounting for the effect of
arbitrary wind fields. The energy map provides the path to the goal
as a sequence of way points, the optimal speeds to fly for each
segment between way points and the heading required to fly along a
segment. Since the energy map is based on the minimum total energy
required to reach the goal it immediately answers the question of
existence of a feasible solution for a particular starting point
and initial total energy. The results obtained from energy map are
compared with other generic trajectory planners, namely A*. The A*
algorithm used uses a cost function which is the weighted sum of
energy required and remaining distance to goal. The effect of
varying the weight parameter on the flight paths is examined. The
energy expended along a path for varying weight is examined, and
the results are compared with a wavefront expansion planning
algorithm. The weight is selected based on maximum energy
utilization that is available from the atmosphere and minimizing
time to reach the goal. Optimal weight is selected based on
simulation results. Both the methods of path planning are now used
in real wind field data. Energy efficient routes are found in the
real wind field using both the methods.
Subjects/Keywords: path planning; UAV; energy harvestation
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APA (6th Edition):
Chakrabarty, A. (2010). FLIGHT PATH PLANNING OF UAV BASED ON ATMOSPHERIC ENERGY
HARVESTING. (Masters Thesis). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/11226
Chicago Manual of Style (16th Edition):
Chakrabarty, Anjan. “FLIGHT PATH PLANNING OF UAV BASED ON ATMOSPHERIC ENERGY
HARVESTING.” 2010. Masters Thesis, Penn State University. Accessed February 23, 2020.
https://etda.libraries.psu.edu/catalog/11226.
MLA Handbook (7th Edition):
Chakrabarty, Anjan. “FLIGHT PATH PLANNING OF UAV BASED ON ATMOSPHERIC ENERGY
HARVESTING.” 2010. Web. 23 Feb 2020.
Vancouver:
Chakrabarty A. FLIGHT PATH PLANNING OF UAV BASED ON ATMOSPHERIC ENERGY
HARVESTING. [Internet] [Masters thesis]. Penn State University; 2010. [cited 2020 Feb 23].
Available from: https://etda.libraries.psu.edu/catalog/11226.
Council of Science Editors:
Chakrabarty A. FLIGHT PATH PLANNING OF UAV BASED ON ATMOSPHERIC ENERGY
HARVESTING. [Masters Thesis]. Penn State University; 2010. Available from: https://etda.libraries.psu.edu/catalog/11226
University of Ontario Institute of Technology
12.
Hodgins, Jonathan.
H-Delta: design and applications of a novel 5 degree of freedom parallel robot.
Degree: 2018, University of Ontario Institute of Technology
URL: http://hdl.handle.net/10155/919
► This thesis presents a new parallel 5 DOF robot called the H-Delta. The H- Delta adds 2 degrees of freedom (DOF) to the traditional Delta…
(more)
▼ This thesis presents a new parallel 5 DOF robot called the H-Delta. The H-
Delta adds 2 degrees of freedom (DOF) to the traditional Delta robot in a novel
way, adding functionality and versatility. Importantly, the rotational DOF are
decoupled, independent of the translational movement.
This thesis begins by covering the necessary background the H-Delta is built
upon, and then describes the structure of the H-delta and how it improves upon
the state-of-the-art. The kinematic analysis of the H-Delta covers the inverse
kinematics, Jacobian matrix derivation, stiffness, and dexterity. To provide a
reference to an existing structure the H-Delta is compared to the benchmark
Stewart Platform.
A Dynamic analysis is performed by formulating the dynamic equations of
the H-Delta using the Lagrangian method. The results of the dynamic calcu-
lations are verified with a dynamic simulation which also acts as a test bed to
develop control systems.
A multi-objective optimization of the H-Delta is presented and using the in-
formation accrued to this point an initial prototype is designed and constructed
to verify the H-Delta structure.
With the knowledge of the strengths of the H-Delta gained from the analysis
and prototype, select applications are presented where the H-Delta best lends
its strengths to the application.
The H-Delta is mounted on a
UAV to survey and interact with its surroun-
dings. The prototype can use an on-board camera to track the position of an
objective on the ground and center the gripper over it. When the
UAV gets close
enough, the H-Delta reaches out and automatically retrieves the object. When
flying around, the H-Delta stabilizes the movement of the end effector, reducing
acceleration. The prototype movement is measured and the results show that
the end effector is accurate to within 3mm and the rotation is accurate within
0.5 degrees.
Advisors/Committee Members: Zhang, Dan.
Subjects/Keywords: Parallel; Robotics; UAV; Manipulator
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Manager
APA (6th Edition):
Hodgins, J. (2018). H-Delta: design and applications of a novel 5 degree of freedom parallel robot. (Thesis). University of Ontario Institute of Technology. Retrieved from http://hdl.handle.net/10155/919
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hodgins, Jonathan. “H-Delta: design and applications of a novel 5 degree of freedom parallel robot.” 2018. Thesis, University of Ontario Institute of Technology. Accessed February 23, 2020.
http://hdl.handle.net/10155/919.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hodgins, Jonathan. “H-Delta: design and applications of a novel 5 degree of freedom parallel robot.” 2018. Web. 23 Feb 2020.
Vancouver:
Hodgins J. H-Delta: design and applications of a novel 5 degree of freedom parallel robot. [Internet] [Thesis]. University of Ontario Institute of Technology; 2018. [cited 2020 Feb 23].
Available from: http://hdl.handle.net/10155/919.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hodgins J. H-Delta: design and applications of a novel 5 degree of freedom parallel robot. [Thesis]. University of Ontario Institute of Technology; 2018. Available from: http://hdl.handle.net/10155/919
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
13.
Almeida, Ives Afonso Rocha de.
A utilização da tecnologia Unmanned Aerial Vehicle na Guarda Nacional Republicana na missão de proteção e socorro.
Degree: 2015, Academia Militar
URL: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/12241
► A presente investigação analisa a problemática que decorre da utilização de meios aéreos não tripulados na missão de proteção e socorro da Guarda Nacional Republicana.…
(more)
▼ A presente investigação analisa a problemática que decorre da utilização de meios aéreos não tripulados na missão de proteção e socorro da Guarda Nacional Republicana. A sua utilização implica uma restrição de direitos constitucionalmente protegidos dos cidadãos, e essa limitação carece de uma verificação válida.
Desta forma, o objetivo principal deste estudo passa por analisar a viabilidade da utilização da tecnologia unmanned aerial vehicle na missão de proteção e socorro da Guarda Nacional Republicana. Com esta finalidade, identifica um quadro de solução para a possível violação dos direitos, liberdades e garantias do cidadão; apresenta as vantagens e desvantagens da utilização destes meios, e estuda a adequabilidade desta tecnologia para desenvolver missões de proteção e socorro, comparando-a com outros meios.
No que diz respeito à metodologia, o presente trabalho assenta no método hipotético-dedutivo, socorrendo-se de entrevistas realizadas aos oficiais responsáveis pela área de proteção e socorro na Guarda Nacional Republicana, e também de recolha bibliográfica.
A informação recolhida permite chegar a resultados significativos que possibilitam apurar assim, a viabilidade da utilização de meios aéreos não tripulados na missão de proteção e socorro da Guarda Nacional Republicana.
The current research work analyzes the problems arising from the use of remotely piloted aircraft systems in Guarda Nacional Republicana protection and rescue mission. Its use implies a restriction of constitutionally protected rights of citizens, and this limitation lacks a valid check.
Therefore, the main objective of this study is to examine the feasibility of using unmanned aerial vehicle technology in Guarda Nacional Republicana protection and rescue mission. For this purpose, identifies a solution to the possible violation of rights, freedoms and guarantees of citizens; presents the advantages and disadvantages of the use of these vehicles and studies the suitability of this technology to develop protection and rescue missions, comparing it to other resources.
Regarding the methodology, the present work is based on the hypothetical-deductive method, drawing on interviews with the officers responsible for the area of protection and rescue in Guarda National Republicana, as well as collection of bibliographic references.
The information collected allow us to reach significant results that can determine the viability of using unmanned aerial vehicles in Guarda Nacional Republicana protection and rescue mission.
Subjects/Keywords: Tecnologia; UAV; Segurança; Liberdade
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APA (6th Edition):
Almeida, I. A. R. d. (2015). A utilização da tecnologia Unmanned Aerial Vehicle na Guarda Nacional Republicana na missão de proteção e socorro. (Thesis). Academia Militar. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/12241
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Almeida, Ives Afonso Rocha de. “A utilização da tecnologia Unmanned Aerial Vehicle na Guarda Nacional Republicana na missão de proteção e socorro.” 2015. Thesis, Academia Militar. Accessed February 23, 2020.
https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/12241.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Almeida, Ives Afonso Rocha de. “A utilização da tecnologia Unmanned Aerial Vehicle na Guarda Nacional Republicana na missão de proteção e socorro.” 2015. Web. 23 Feb 2020.
Vancouver:
Almeida IARd. A utilização da tecnologia Unmanned Aerial Vehicle na Guarda Nacional Republicana na missão de proteção e socorro. [Internet] [Thesis]. Academia Militar; 2015. [cited 2020 Feb 23].
Available from: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/12241.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Almeida IARd. A utilização da tecnologia Unmanned Aerial Vehicle na Guarda Nacional Republicana na missão de proteção e socorro. [Thesis]. Academia Militar; 2015. Available from: https://www.rcaap.pt/detail.jsp?id=oai:comum.rcaap.pt:10400.26/12241
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Virginia Tech
14.
Zhang, Yuhan.
Target Tracking from a UAV based on Computer Vision.
Degree: MS, Mechanical Engineering, 2018, Virginia Tech
URL: http://hdl.handle.net/10919/83542
► This thesis presents the design and build of tracking system for a quadrotor to chase a moving target based on computer vision in GPS-denied environment.…
(more)
▼ This thesis presents the design and build of tracking system for a quadrotor to chase a moving target based on computer vision in GPS-denied environment. The camera is mounted at the bottom of the quadrotor and used to capture the image below the quadrotor. The image information is transmitted to computer via a video transmitter and receiver module. The target is detected by the color and contour-based detection algorithm. The desired pitch and roll angles are calculated from the position controller based on the relative position and velocity between the moving target and the quadrotor. Interface between PC and quadrotor is built by controlling the PWM signals of the transmitter for command transmission.
Three types of position controllers including PD controller, fuzzy controller and self-tuning PD controller based on fuzzy logic are designed and tested in the tracking tests. Results on the corresponding tracking performances are presented. Solutions to improving the tracking performance including the usage of optical sensor for velocity measurement and high-resolution camera for higher image quality are discussed in future work.
Advisors/Committee Members: Leonessa, Alexander (committeechair), Southward, Steve C. (committee member), Kochersberger, Kevin Bruce (committee member).
Subjects/Keywords: UAV; control; computer vision
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Manager
APA (6th Edition):
Zhang, Y. (2018). Target Tracking from a UAV based on Computer Vision. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/83542
Chicago Manual of Style (16th Edition):
Zhang, Yuhan. “Target Tracking from a UAV based on Computer Vision.” 2018. Masters Thesis, Virginia Tech. Accessed February 23, 2020.
http://hdl.handle.net/10919/83542.
MLA Handbook (7th Edition):
Zhang, Yuhan. “Target Tracking from a UAV based on Computer Vision.” 2018. Web. 23 Feb 2020.
Vancouver:
Zhang Y. Target Tracking from a UAV based on Computer Vision. [Internet] [Masters thesis]. Virginia Tech; 2018. [cited 2020 Feb 23].
Available from: http://hdl.handle.net/10919/83542.
Council of Science Editors:
Zhang Y. Target Tracking from a UAV based on Computer Vision. [Masters Thesis]. Virginia Tech; 2018. Available from: http://hdl.handle.net/10919/83542
University of Cambridge
15.
Pons, Arion Douglas.
Supermanoeuvrability in a biomimetic morphing-wing aircraft.
Degree: PhD, 2019, University of Cambridge
URL: https://www.repository.cam.ac.uk/handle/1810/297318
► In this work we study the supermanoeuvrability of a biomimetic morphing-wing case study aircraft system. Analytical and computational models of biomimetic flight dynamics are developed,…
(more)
▼ In this work we study the supermanoeuvrability of a biomimetic morphing-wing case study aircraft system. Analytical and computational models of biomimetic flight dynamics are developed, utilising multibody dynamics, computational fluid dynamics, and reduced-order aerodynamic models; and validated with respect to experimentally-derived flight dynamics of a Pioneer RQ-2 UAV. These models are used to explore the capability of this system for a wide range of biological and other supermanoeuvres: multi-axis quasistatic nose-pointing-and-shooting (NPAS) / direct force capability; multi-axis rapid-nose-pointing-and-shooting (RaNPAS) including Pugachev’s cobra; ballistic transition; and anchor turning. Novel contributions include the development of transient aerodynamic models for a three-dimensional flight-simulation context; the development of novel methods for assessing transient model validity; the development of improved methods of quaternion variational integration; the development of quasi-trim and continuation-based methods for the design, exploration, analysis and control of manoeuvres in biomimetic morphing-wing systems; an assessment of the complex spiral mode stability effects present in asymmetrically-morphed system trim states; and a demonstration of the wide-ranging potential for advanced supermanoeuvrability in biomimetic morphing-wing systems. Industrial applications include the design of high-precision guided missiles for use in complex, e.g. urban, environments.
Subjects/Keywords: supermanoeuvrability; biomimetic; morphing aircraft; UAV
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APA (6th Edition):
Pons, A. D. (2019). Supermanoeuvrability in a biomimetic morphing-wing aircraft. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/297318
Chicago Manual of Style (16th Edition):
Pons, Arion Douglas. “Supermanoeuvrability in a biomimetic morphing-wing aircraft.” 2019. Doctoral Dissertation, University of Cambridge. Accessed February 23, 2020.
https://www.repository.cam.ac.uk/handle/1810/297318.
MLA Handbook (7th Edition):
Pons, Arion Douglas. “Supermanoeuvrability in a biomimetic morphing-wing aircraft.” 2019. Web. 23 Feb 2020.
Vancouver:
Pons AD. Supermanoeuvrability in a biomimetic morphing-wing aircraft. [Internet] [Doctoral dissertation]. University of Cambridge; 2019. [cited 2020 Feb 23].
Available from: https://www.repository.cam.ac.uk/handle/1810/297318.
Council of Science Editors:
Pons AD. Supermanoeuvrability in a biomimetic morphing-wing aircraft. [Doctoral Dissertation]. University of Cambridge; 2019. Available from: https://www.repository.cam.ac.uk/handle/1810/297318
Delft University of Technology
16.
Berghuis, G.
Simulation of a Detect and Sense System:.
Degree: 2010, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:5a90ba0b-e2e7-4912-980f-d892b0a36ccc
► Under current regulations, Unmanned Aerial Vehicles (UAVs) are prohibited from operating in non- segregated airspace. The absence of a pilot is considered to be a…
(more)
▼ Under current regulations, Unmanned Aerial Vehicles (UAVs) are prohibited from operating in non-
segregated airspace. The absence of a pilot is considered to be a potential hazard because the pilot is
responsible for the separation with other aircraft. In unmanned aviation the pilot, or operator, can never detect possible separation conflicts without the help of Detect, Sense and Avoid (DSA) systems. To make operation in civil airspace possible, there is a need for certified DSA systems. As of yet there are no certified systems available because the requirements for the certification are not yet developed. To help develop these requirements for these systems, research efforts experiment with these systems in both flight-tests and simulations.
One such a research effort is made by the Delft University of Technology (DUT) together with the
Netherlands Defence Academy (NLDA). They use a
UAV ground station simulator to investigate the
‘Operator-in-the-Loop’ concept: the DSA system does not autonomously take action, but the operator is alerted when a possible threat is detected and asked to verify the threat and to decide what action to take. The research presented in this thesis is performed in order to increase the fidelity of the DSA models used in this simulator.
DSA systems use sensors to detect potential threats. This project focused on the simulation of the sensors used for detecting non-cooperative traffic. On the basis of a study of the literature the three most commonly used sensors were selected: radar, electro-optical (EO) and infrared (IR). After the subsystems and interfaces were defined the subsystems were designed in a two step iterative approach. The final radar simulation is a link-budget model and uses the Swerling algorithm for the detection calculation. The EO and the IR simulation system use a simplified geometric aircraft model to calculate the static and dynamic signature on the sensor image. The detection calculation is performed by weighing and combining the signatures and comparing them to a threshold value. All designed systems are verified with data obtained from other research projects.
Advisors/Committee Members: Theunissen, E..
Subjects/Keywords: radar; electro-optical; infrared; uav
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APA (6th Edition):
Berghuis, G. (2010). Simulation of a Detect and Sense System:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:5a90ba0b-e2e7-4912-980f-d892b0a36ccc
Chicago Manual of Style (16th Edition):
Berghuis, G. “Simulation of a Detect and Sense System:.” 2010. Masters Thesis, Delft University of Technology. Accessed February 23, 2020.
http://resolver.tudelft.nl/uuid:5a90ba0b-e2e7-4912-980f-d892b0a36ccc.
MLA Handbook (7th Edition):
Berghuis, G. “Simulation of a Detect and Sense System:.” 2010. Web. 23 Feb 2020.
Vancouver:
Berghuis G. Simulation of a Detect and Sense System:. [Internet] [Masters thesis]. Delft University of Technology; 2010. [cited 2020 Feb 23].
Available from: http://resolver.tudelft.nl/uuid:5a90ba0b-e2e7-4912-980f-d892b0a36ccc.
Council of Science Editors:
Berghuis G. Simulation of a Detect and Sense System:. [Masters Thesis]. Delft University of Technology; 2010. Available from: http://resolver.tudelft.nl/uuid:5a90ba0b-e2e7-4912-980f-d892b0a36ccc
17.
Marcellan, A.
An exploration into the potential of microturbine based propulsion systems for civil Unmanned Aerial Vehicles:.
Degree: 2015, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:db9e8daf-dede-4915-9425-df4bc9706c12
► A Master Thesis Research has been undertaken with the goal of investigating the potential of micro gas turbines as propulsion system of choice for small…
(more)
▼ A Master Thesis Research has been undertaken with the goal of investigating the potential of micro gas turbines as propulsion system of choice for small Unmanned Aerial Vehicle (
UAV) used in civil applications. The
UAV market is likely to develop great economic and technological importance on a near future because of the wide variety of applications and the added value related to the unmanned vehicles. In this regard, research focused on improving
UAV capabilities is strictly related to
UAV propulsion systems; as a matter of fact, aircraft performance is dependent on the mass of the power-plant and its specific fuel consumption since these can have a very significant effect on the reduction in size or increase in range of the
UAV.
An Exploration Study is performed both in the fields of
UAV technology and of Micro Gas Turbine technology. These two areas are covered in order to understand the possible advantages and limitations of micro gas turbine engines compared to alternative propulsion concepts (e.g. electric and reciprocating engines) when used for a specific application. After the identification of a significant Case Study, a conceptual design of a high-potential
UAV micro gas turbine based propulsion system is performed. Prediction of scale effects is important within the framework of turbine conceptual design where the power output is varied in order to optimize the mission performance in which the turbine is integrated. To this end, engine cycle optimization using Gas turbine Simulation Program (GSP) is carried out. Furthermore, an "Aircraft Study" is performed in a correlated Master Thesis Project in which the aerodynamic and flight performance model of a baseline
UAV is developed. After the model validation, results from the micro gas turbine model are integrated and the performance of the new
UAV configuration is investigated.
The final engine configuration is a 77 kW dual shaft turboprop which is further implemented into the
UAV platform redesigned accordingly to the reduced weight and improved performance. The mission model estimates for this configuration an endurance of 28.7 hours, with a range of 4419 km and a payload weight of 250 kg, with a significant fuel reduction of 12.5% compared to the original
UAV configuration. The effect of power setting at cruise and the engine weight reduction allows the turboprop to arguably showcase overall better mission performance. As a result of the work carried out in this Master Thesis Project, a valuable tool for understanding the contribution of micro gas turbine integration into civil
UAV has been developed.
Advisors/Committee Members: Visser, W.P.J..
Subjects/Keywords: microturbine; UAV; civil Applications
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APA (6th Edition):
Marcellan, A. (2015). An exploration into the potential of microturbine based propulsion systems for civil Unmanned Aerial Vehicles:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:db9e8daf-dede-4915-9425-df4bc9706c12
Chicago Manual of Style (16th Edition):
Marcellan, A. “An exploration into the potential of microturbine based propulsion systems for civil Unmanned Aerial Vehicles:.” 2015. Masters Thesis, Delft University of Technology. Accessed February 23, 2020.
http://resolver.tudelft.nl/uuid:db9e8daf-dede-4915-9425-df4bc9706c12.
MLA Handbook (7th Edition):
Marcellan, A. “An exploration into the potential of microturbine based propulsion systems for civil Unmanned Aerial Vehicles:.” 2015. Web. 23 Feb 2020.
Vancouver:
Marcellan A. An exploration into the potential of microturbine based propulsion systems for civil Unmanned Aerial Vehicles:. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2020 Feb 23].
Available from: http://resolver.tudelft.nl/uuid:db9e8daf-dede-4915-9425-df4bc9706c12.
Council of Science Editors:
Marcellan A. An exploration into the potential of microturbine based propulsion systems for civil Unmanned Aerial Vehicles:. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:db9e8daf-dede-4915-9425-df4bc9706c12
Delft University of Technology
18.
Van der Weiden, M.J.
Geïntegreerde bouwsector: vergelijkend onderzoek naar het gebruik van geïntegreerde contracten in de burgerlijke- en utiliteitsbouw sector en grond-, weg- en waterbouw sector:.
Degree: 2011, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:7787605f-2af5-4128-aae5-c339268bb980
► Een onderzoek naar het gebruik van geïntegreerde contracten met UAV-GC 2005 in de burgerlijke- en utiliteitsbouw sector en grond-, weg- en waterbouw sector. Binnen de…
(more)
▼ Een onderzoek naar het gebruik van geïntegreerde contracten met
UAV-GC 2005 in de burgerlijke- en utiliteitsbouw sector en grond-, weg- en waterbouw sector.
Binnen de burgerlijke- en utiliteitsbouw sector worden geïntegreerde contracten met
UAV-GC 2005 minder toegepast grond-, weg- en waterbouw sector. In deze rapportage wordt een vergelijking gemaakt van de grond-, weg-, en waterbouw - sector en de burgerlijke- en utiliteitsbouw -sector en daarbij ook de toepassing van het geïntegreerd contract. Hierbij is geconcludeerd waardoor GC minder worden toegepast; wat de zorgen zijn en hoe deze verholpen kunnen worden. Vanuit deze vergelijking is voor de burgerlijke- en utiliteitsbouw –sector een informatieve handreiking opgesteld indien men wilt werken met een geïntegreerd contract.
Advisors/Committee Members: Geraedts, R.P., Chao-Duivis, M.A.B..
Subjects/Keywords: geïntegreerde contracten; UAV-GC 2005
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APA (6th Edition):
Van der Weiden, M. J. (2011). Geïntegreerde bouwsector: vergelijkend onderzoek naar het gebruik van geïntegreerde contracten in de burgerlijke- en utiliteitsbouw sector en grond-, weg- en waterbouw sector:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:7787605f-2af5-4128-aae5-c339268bb980
Chicago Manual of Style (16th Edition):
Van der Weiden, M J. “Geïntegreerde bouwsector: vergelijkend onderzoek naar het gebruik van geïntegreerde contracten in de burgerlijke- en utiliteitsbouw sector en grond-, weg- en waterbouw sector:.” 2011. Masters Thesis, Delft University of Technology. Accessed February 23, 2020.
http://resolver.tudelft.nl/uuid:7787605f-2af5-4128-aae5-c339268bb980.
MLA Handbook (7th Edition):
Van der Weiden, M J. “Geïntegreerde bouwsector: vergelijkend onderzoek naar het gebruik van geïntegreerde contracten in de burgerlijke- en utiliteitsbouw sector en grond-, weg- en waterbouw sector:.” 2011. Web. 23 Feb 2020.
Vancouver:
Van der Weiden MJ. Geïntegreerde bouwsector: vergelijkend onderzoek naar het gebruik van geïntegreerde contracten in de burgerlijke- en utiliteitsbouw sector en grond-, weg- en waterbouw sector:. [Internet] [Masters thesis]. Delft University of Technology; 2011. [cited 2020 Feb 23].
Available from: http://resolver.tudelft.nl/uuid:7787605f-2af5-4128-aae5-c339268bb980.
Council of Science Editors:
Van der Weiden MJ. Geïntegreerde bouwsector: vergelijkend onderzoek naar het gebruik van geïntegreerde contracten in de burgerlijke- en utiliteitsbouw sector en grond-, weg- en waterbouw sector:. [Masters Thesis]. Delft University of Technology; 2011. Available from: http://resolver.tudelft.nl/uuid:7787605f-2af5-4128-aae5-c339268bb980
Delft University of Technology
19.
Ketelaars, V.J.M.J.
Robust Communication Framework for Unmanned Aerial Systems:.
Degree: 2014, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:62da8ff0-fbfc-483a-8177-0f7b50b16c89
► Unmanned Aerial Systems (UASs) are emerging in the industrial, consumer and re- search domains. A key challenge for UAS communications is overcoming slow and unreliable…
(more)
▼ Unmanned Aerial Systems (UASs) are emerging in the industrial, consumer and re- search domains. A key challenge for UAS communications is overcoming slow and unreliable wireless connectivity by achieving high link utilization on multiple radio interfaces. We have developed and implemented a peer-to-peer communication framework, based on Dispersy and Libswift, that allows multihomed (connected to multiple networks) UASs to utilize all available links.
In our experiments we address four use cases. The first use case describes data transfer from an Unmanned Aerial Vehicle (
UAV) to a ground station, where the
UAV starts and finishes out of communicative reach. The second use case expands on the first by utilizing two links on both entities. The third use case focuses on a
UAV relaying communication between two ground stations that are incapable of communicating directly. The final use case has two ground stations in contact with each other, that successively receive data from a
UAV and immediately share it.
The results show low data transfer throughput in general. Multi-link utilization is functional, but the data transfer rate is 32% lower for two links than for a single link. Data duplication rates are significantly higher for wireless links than for wired links, and more than double when utilizing two links instead of one. Libswift is responsible for the data transfer and its reported problem with long latency is suggested to be the primary cause for these disappointing results. Thus, future implementations should work with an improved version of Libswift.
We consider the effective utilization of multiple links combined with peer-to-peer systems to have real world use cases for UAVs and mobile devices in general. Therefore, we recommend future research to focus on deployable applications to that end.
Advisors/Committee Members: Pouwelse, J..
Subjects/Keywords: UAV; Peer-to-peer; Multihoming
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APA (6th Edition):
Ketelaars, V. J. M. J. (2014). Robust Communication Framework for Unmanned Aerial Systems:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:62da8ff0-fbfc-483a-8177-0f7b50b16c89
Chicago Manual of Style (16th Edition):
Ketelaars, V J M J. “Robust Communication Framework for Unmanned Aerial Systems:.” 2014. Masters Thesis, Delft University of Technology. Accessed February 23, 2020.
http://resolver.tudelft.nl/uuid:62da8ff0-fbfc-483a-8177-0f7b50b16c89.
MLA Handbook (7th Edition):
Ketelaars, V J M J. “Robust Communication Framework for Unmanned Aerial Systems:.” 2014. Web. 23 Feb 2020.
Vancouver:
Ketelaars VJMJ. Robust Communication Framework for Unmanned Aerial Systems:. [Internet] [Masters thesis]. Delft University of Technology; 2014. [cited 2020 Feb 23].
Available from: http://resolver.tudelft.nl/uuid:62da8ff0-fbfc-483a-8177-0f7b50b16c89.
Council of Science Editors:
Ketelaars VJMJ. Robust Communication Framework for Unmanned Aerial Systems:. [Masters Thesis]. Delft University of Technology; 2014. Available from: http://resolver.tudelft.nl/uuid:62da8ff0-fbfc-483a-8177-0f7b50b16c89
University of Melbourne
20.
Brett, James Daniel.
Numerical study of the flow over delta wings.
Degree: 2016, University of Melbourne
URL: http://hdl.handle.net/11343/92383
► Delta wing aircraft are becoming more commonplace due to the increasing numbers of unmanned aerial vehicles (UAV) which favour designs capable of producing large amounts…
(more)
▼ Delta wing aircraft are becoming more commonplace due to the increasing numbers of unmanned aerial vehicles (UAV) which favour designs capable of producing large amounts of lift with a small, transportable wing span. A recent prototype UAV design, the 1303 UCAV, is similar to many existing UAV designs, with a moderate sweep angle of 47˚. However it undergoes a problematic onset of pitch break as the angle of attack is increased.
In this thesis, computational fluid dynamics (CFD) is used to examine the
Flow over the 1303 UCAV and better understand the cause of the onset of pitch break. The CFD modelling was validated against published wind tunnel data for the 1303 UCAV. The potential to control a UAV using geometric morphing instead of, or in addition to, conventional control surfaces was investigated by simulating the maneuvering moments produces by a range of different geometric morphs.
CFD modelling was also used to simulate the flow over a higher sweep angle wing with a sweep of 65˚ at a moderate angle of attack of 10˚. At this angle of attack the flow was demonstrated to be relatively stable, with very little unsteadiness, and the model was validated against published experimental data.
The impact of sweep angle on the vortex structures was investigated by simulating a wide range of sweep angles, and the flow was demonstrated to transition between two different structures when the sweep angle was between 50˚ and 55˚.
Subjects/Keywords: CFD; delta wing; UAV
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Export
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APA (6th Edition):
Brett, J. D. (2016). Numerical study of the flow over delta wings. (Doctoral Dissertation). University of Melbourne. Retrieved from http://hdl.handle.net/11343/92383
Chicago Manual of Style (16th Edition):
Brett, James Daniel. “Numerical study of the flow over delta wings.” 2016. Doctoral Dissertation, University of Melbourne. Accessed February 23, 2020.
http://hdl.handle.net/11343/92383.
MLA Handbook (7th Edition):
Brett, James Daniel. “Numerical study of the flow over delta wings.” 2016. Web. 23 Feb 2020.
Vancouver:
Brett JD. Numerical study of the flow over delta wings. [Internet] [Doctoral dissertation]. University of Melbourne; 2016. [cited 2020 Feb 23].
Available from: http://hdl.handle.net/11343/92383.
Council of Science Editors:
Brett JD. Numerical study of the flow over delta wings. [Doctoral Dissertation]. University of Melbourne; 2016. Available from: http://hdl.handle.net/11343/92383
Texas A&M University
21.
Sun, Shih-Heng.
Nearshore Bathymetry Estimation from Drone Video Using PIV Technique.
Degree: MS, Ocean Engineering, 2017, Texas A&M University
URL: http://hdl.handle.net/1969.1/169616
► This research introduces a novel method to estimate nearshore bottom topography using an unmanned aerial vehicle (UAV), or drone. The UAV was manipulated over the…
(more)
▼ This research introduces a novel method to estimate nearshore bottom topography
using an unmanned aerial vehicle (
UAV), or drone. The
UAV was manipulated over the
area of interest to film video, and the Particle image velocimetry (PIV) technique was then
applied to analyze the video frames in order to retrieve the wave speeds. Under the shallow
water conditions, the wave dispersion relation can be simplified in a manner such that
when the wave speed is known, the water depth can be inferred. In other words, when
wave speed is known, water depth can be inferred. After combining the inferred water
depths at multiple points from within the area of interest, the bathymetry was constructed.
To validate the method, individual waves were recorded in the nearshore breaking
zone during two trials at Freeport, Texas, USA. We measured the significant difference in
intensity across the recorded images, as the intensity had a larger signal-to-noise ratio, and
this improved the implementation of the PIV algorithm. We then compared the PIVestimated
water depth with field measurement and observations, finding that the water
depth was overestimated by 13.5%, which was primarily explained by non-linear wave
breaking effects. We then introduced a correction factor, reducing the estimation error to
within 6% of the true observed water depth.
Though there are limitations, this new approach can lower the cost of developing
bathymetric maps in the nearshore and result in greater flexibility across space and time.
Further improvements in equipment and work on developing better correction factors may
result in still greater precision.
Advisors/Committee Members: Chang, Kuang-An (advisor), Kaihatu, James (committee member), Feagin, Russell (committee member).
Subjects/Keywords: Bathymetry; Topography; PIV; Drone; UAV
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APA (6th Edition):
Sun, S. (2017). Nearshore Bathymetry Estimation from Drone Video Using PIV Technique. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/169616
Chicago Manual of Style (16th Edition):
Sun, Shih-Heng. “Nearshore Bathymetry Estimation from Drone Video Using PIV Technique.” 2017. Masters Thesis, Texas A&M University. Accessed February 23, 2020.
http://hdl.handle.net/1969.1/169616.
MLA Handbook (7th Edition):
Sun, Shih-Heng. “Nearshore Bathymetry Estimation from Drone Video Using PIV Technique.” 2017. Web. 23 Feb 2020.
Vancouver:
Sun S. Nearshore Bathymetry Estimation from Drone Video Using PIV Technique. [Internet] [Masters thesis]. Texas A&M University; 2017. [cited 2020 Feb 23].
Available from: http://hdl.handle.net/1969.1/169616.
Council of Science Editors:
Sun S. Nearshore Bathymetry Estimation from Drone Video Using PIV Technique. [Masters Thesis]. Texas A&M University; 2017. Available from: http://hdl.handle.net/1969.1/169616
University of Toronto
22.
Bohdanov, Denys.
Quadrotor UAV Control for Vision-based Moving Target Tracking Task.
Degree: 2012, University of Toronto
URL: http://hdl.handle.net/1807/33344
► The problem of stand-off tracking of a moving target using a quadrotor unmanned aerial vehicle (UAV) based on vision-sensing is investigated. A PID (Proportional-Integral-Derivative) controller…
(more)
▼ The problem of stand-off tracking of a moving target using a quadrotor unmanned aerial vehicle (UAV) based on vision-sensing is investigated. A PID (Proportional-Integral-Derivative) controller is implemented for attitude stabilization of the quadrotor. An LQG-based (Linear-Quadratic-Gaussian) control law is designed and implemented for position control of the quadrotor for a moving target tracking task. A novel vision-based estimation algorithm is developed, enabling estimation of quadrotor’s position, altitude and yaw relative to the target based on limited information about the target. Two image
processing algorithms are implemented and compared for the task of feature detection
and feature tracking in a series of images. Image processing algorithms are integrated
with quadrotor control and experiments are performed to validate proposed control and
estimation approaches.
MAST
Advisors/Committee Members: Liu, Hugh, Aerospace Science and Engineering.
Subjects/Keywords: Quadrotor control; UAV; 0538
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APA (6th Edition):
Bohdanov, D. (2012). Quadrotor UAV Control for Vision-based Moving Target Tracking Task. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/33344
Chicago Manual of Style (16th Edition):
Bohdanov, Denys. “Quadrotor UAV Control for Vision-based Moving Target Tracking Task.” 2012. Masters Thesis, University of Toronto. Accessed February 23, 2020.
http://hdl.handle.net/1807/33344.
MLA Handbook (7th Edition):
Bohdanov, Denys. “Quadrotor UAV Control for Vision-based Moving Target Tracking Task.” 2012. Web. 23 Feb 2020.
Vancouver:
Bohdanov D. Quadrotor UAV Control for Vision-based Moving Target Tracking Task. [Internet] [Masters thesis]. University of Toronto; 2012. [cited 2020 Feb 23].
Available from: http://hdl.handle.net/1807/33344.
Council of Science Editors:
Bohdanov D. Quadrotor UAV Control for Vision-based Moving Target Tracking Task. [Masters Thesis]. University of Toronto; 2012. Available from: http://hdl.handle.net/1807/33344
University of New South Wales
23.
Alqurashi, Muwaffaq.
Modelling and quality control for 3D UAV mapping.
Degree: Civil & Environmental Engineering, 2016, University of New South Wales
URL: http://handle.unsw.edu.au/1959.4/56288
;
https://unsworks.unsw.edu.au/fapi/datastream/unsworks:40483/SOURCE02?view=true
► 3D mapping using small UAV as small platforms carrying navigation and imaging sensors has gained the popularity in the recent years. However, the improvement in…
(more)
▼ 3D mapping using small
UAV as small platforms carrying navigation and imaging sensors has gained the popularity in the recent years. However, the improvement in 3D
UAV mapping to obtain more accurate and reliable results can increase the benefits gained from them leading the 3D
UAV mapping suitable for more applications. The improvement can be introduced through many ways, but this research will try to deal with multiple gross errors that can occur in navigation or geo-referencing step and systematic and gross errors in mapping step to obtain robust results. The major research contributions are summarised as follows: a. New analysis for three and four fault cases: The comprehensive investigation of the characteristics of multiple faults in navigation sensors GPS, GNSS, GPS/INS, and GNSS/INS shows that the integration of INS with GNSS systems can make the identification of faulty measurements easier compared with the use of standalone GNSS system. The integration of INS can also improve the reliability in navigation system in the case of three and four faults. b. A new factored stochastic model: A new factored stochastic model has been proposed in this study to deal effectively with the random errors that can affect mapping process. It was based on the horizontal positions of the objects in the mapped area. However, more complex stochastic models may be further investigated. Furthermore, the impact of the accuracy of geo-referencing and matching observations has been discussed to give an indication about the future of mapping using UAVs. c. A new procedure for testing the systematic error parameters: A new comprehensive procedure for testing the significance of the systematic error parameters to choose the necessary or the most significant parameters to model the systematic errors has been introduced in this study. The procedure has been tested under different cases of the distribution of GCPs. It also has been investigated with different scenarios of simulated systematic errors. d. A comprehensive statistical quality analysis for 3D
UAV mapping: The comprehensive statistical quality analysis for 3D
UAV mapping in the case of single and double fault cases has been completed showing that the estimation of 3D coordinates using only two overlapped images can provide less reliable or unreliable solution in single fault case. In the double fault case, the situation becomes worse in terms of the reliability. The analysis shows that the reliance on the increased number of overlapped images can be considered as the best practice to improve the reliability in single and multiple fault cases.
Advisors/Committee Members: Wang, Jinling, Civil & Environmental Engineering, Faculty of Engineering, UNSW.
Subjects/Keywords: Quality control; UAV; Mapping
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Manager
APA (6th Edition):
Alqurashi, M. (2016). Modelling and quality control for 3D UAV mapping. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/56288 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:40483/SOURCE02?view=true
Chicago Manual of Style (16th Edition):
Alqurashi, Muwaffaq. “Modelling and quality control for 3D UAV mapping.” 2016. Doctoral Dissertation, University of New South Wales. Accessed February 23, 2020.
http://handle.unsw.edu.au/1959.4/56288 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:40483/SOURCE02?view=true.
MLA Handbook (7th Edition):
Alqurashi, Muwaffaq. “Modelling and quality control for 3D UAV mapping.” 2016. Web. 23 Feb 2020.
Vancouver:
Alqurashi M. Modelling and quality control for 3D UAV mapping. [Internet] [Doctoral dissertation]. University of New South Wales; 2016. [cited 2020 Feb 23].
Available from: http://handle.unsw.edu.au/1959.4/56288 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:40483/SOURCE02?view=true.
Council of Science Editors:
Alqurashi M. Modelling and quality control for 3D UAV mapping. [Doctoral Dissertation]. University of New South Wales; 2016. Available from: http://handle.unsw.edu.au/1959.4/56288 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:40483/SOURCE02?view=true
San Jose State University
24.
Durga, Naveen.
Situation Awareness in Multiple UAV Control.
Degree: MS, Human Factors/Ergonomics, 2011, San Jose State University
URL: https://doi.org/10.31979/etd.v2em-nbfx
;
https://scholarworks.sjsu.edu/etd_theses/4088
► The purpose of this study was to investigate operator's situation awareness while controlling multiple unmanned aerial vehicles. A human operator may have to control…
(more)
▼ The purpose of this study was to investigate operator's situation awareness while controlling multiple unmanned aerial vehicles. A human operator may have to control more than one vehicle at a time because of an increase in demand of unmanned aerial vehicles (UAVs) in the civilian airspace. Although this might seem plausible, human operators tasked with operating more than one UAV face cognitive overloads resulting in failure to sustain the demanding situation awareness standards of the Federal Aviation Authority. In this study, participants were tasked with monitoring both one and two UAVs by one of three management styles representing three levels of automation. Results indicate that performance (as measured by number of errors committed by the participant) deteriorated while monitoring two UAVs. Four performance and preference ratings were analyzed from post-run and post-simulation questionnaires. The single UAV condition was significantly more efficient by workload and performance measures and led to higher situation awareness than the condition with two UAVs. There was no significant difference between the management styles used to monitor the UAVs.
Subjects/Keywords: human factors; situation awareness; UAV
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APA (6th Edition):
Durga, N. (2011). Situation Awareness in Multiple UAV Control. (Masters Thesis). San Jose State University. Retrieved from https://doi.org/10.31979/etd.v2em-nbfx ; https://scholarworks.sjsu.edu/etd_theses/4088
Chicago Manual of Style (16th Edition):
Durga, Naveen. “Situation Awareness in Multiple UAV Control.” 2011. Masters Thesis, San Jose State University. Accessed February 23, 2020.
https://doi.org/10.31979/etd.v2em-nbfx ; https://scholarworks.sjsu.edu/etd_theses/4088.
MLA Handbook (7th Edition):
Durga, Naveen. “Situation Awareness in Multiple UAV Control.” 2011. Web. 23 Feb 2020.
Vancouver:
Durga N. Situation Awareness in Multiple UAV Control. [Internet] [Masters thesis]. San Jose State University; 2011. [cited 2020 Feb 23].
Available from: https://doi.org/10.31979/etd.v2em-nbfx ; https://scholarworks.sjsu.edu/etd_theses/4088.
Council of Science Editors:
Durga N. Situation Awareness in Multiple UAV Control. [Masters Thesis]. San Jose State University; 2011. Available from: https://doi.org/10.31979/etd.v2em-nbfx ; https://scholarworks.sjsu.edu/etd_theses/4088
AUT University
25.
Alnashi, Liwaa.
Airborne sense and alert collision warning and avoidance system
.
Degree: 2012, AUT University
URL: http://hdl.handle.net/10292/4713
► The emergence of unmanned aerial vehicles and the ever increasing performance in terms of speed, flight altitude, and endurance have led the debate into allowing…
(more)
▼ The emergence of unmanned aerial vehicles and the ever increasing performance in terms of speed, flight altitude, and endurance have led the debate into allowing such aircraft to fly co-jointly with civilian aircraft. However, due to the absence of the usual flight regulation channel, not to mention the pilot at the aircraft controls, the need for an automated collision avoidance system has arisen in the past few years.
For that we propose to provide a practical solution to equip UAVs with an autonomous sense and avoid capability and an autonomous collision avoidance system, to enable the
UAV to fly in a non segregated air space safely and meeting the above regulations.
In this research, we have evaluated different types of mechanism to form this collision avoidance system. The most successful of which concluded of path estimation and the calculation of nearest point of approach. During this research, we developed a collision avoidance mechanism that uses vector algorithms and path estimation methods to increase the efficiency of the logic system and decrease the computation time.
In the results of this experiment, we determined that using few well developed manoeuvres would result in better avoidance efficiency and would require limited change to the flight path of the unmanned vehicle and flight parameters.
Manoeuvres such as changing speed or turning provided the best options for avoiding incoming aircraft, while changing altitude was less successful due to the danger of flying into a different flight level (sharing the same altitude levels with other aircraft) and due to the limited climb and decent rate performances of the model unmanned aerial vehicle used.
More complicated scenarios, such as avoiding multiple aircraft would require a slightly different strategy, where the algorithm would be based upon avoiding a flight path of all aircraft at all times, rather than changing velocity or heading to avoid colliding at a certain point in time.
The main outcome of this experiment, was to prove that such algorithms (with limited complex theory behind it) can prove to be a good option for deriving avoidance systems and ensuring flight safety for manned and unmanned aircraft.
Testing was successfully conducted by the student on simple implementation of the Loss of Separation algorithm to verify, test and expand the algorithm as a pre-preparation for code integration in later
stages.
In this document, we present how we will implement the “sense and avoid” algorithm and the logical decision making system that would provide the
UAV with the ability to re-route its current path to a safer flight course.
Advisors/Committee Members: Collins, John (advisor).
Subjects/Keywords: UAV, Collision Avoidance;
Collision warning
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APA (6th Edition):
Alnashi, L. (2012). Airborne sense and alert collision warning and avoidance system
. (Thesis). AUT University. Retrieved from http://hdl.handle.net/10292/4713
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Alnashi, Liwaa. “Airborne sense and alert collision warning and avoidance system
.” 2012. Thesis, AUT University. Accessed February 23, 2020.
http://hdl.handle.net/10292/4713.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Alnashi, Liwaa. “Airborne sense and alert collision warning and avoidance system
.” 2012. Web. 23 Feb 2020.
Vancouver:
Alnashi L. Airborne sense and alert collision warning and avoidance system
. [Internet] [Thesis]. AUT University; 2012. [cited 2020 Feb 23].
Available from: http://hdl.handle.net/10292/4713.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Alnashi L. Airborne sense and alert collision warning and avoidance system
. [Thesis]. AUT University; 2012. Available from: http://hdl.handle.net/10292/4713
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
26.
Nilsson, Patrik.
Blända kommersiella UAV:er med laservapen.
Degree: Swedish Defence University, 2017, Swedish Defence University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-6773
► Försvarsmakten har idag problem under övningar med oidentifierade UAV:er som befinner sig över övningsområdet. UAV:er som har möjlighet till att spana på övningar och…
(more)
▼ Försvarsmakten har idag problem under övningar med oidentifierade UAV:er som befinner sig över övningsområdet. UAV:er som har möjlighet till att spana på övningar och kartlägga infrastruktur och förmågor. Denna uppsats syftar till att undersöka vilka möjligheter en handhållen laserpekare skulle skapa för att motverka problemet med UAV:er som befinner sig över övningsområden alternativt intill skyddsobjekt. Tanken med att undersöka handhållna laserpekare är att handhållna laserpekare inte är stora, tunga eller energikrävande. Detta skulle möjliggöra att sprida dem inom Försvarsmakten till samtliga förband. Experiment med olika handhållna laserpekare genomförs för att kontrollera vilka effekter de ger på bestämda avstånd. Det genomförs även experiment för att kontrollera vilka avstånd en specifik UAV kan genomföra spaningsuppdrag på samt möjligheter att upptäcka en UAV på olika avstånd med och utan hjälpmedel. Experimenten visar att om observatören är medveten om i vilken riktning UAV befinner sig är det möjligt att upptäcka den på 600m avstånd. Detta skapar ett problem eftersom UAV kan genomföra spaning på längre avstånd. Experimenten visar även att laser ger en bländningseffekt på 75m vilket inte är i närheten av UAV:ers möjliga spaningsavstånd
The Swedish Armed Forces today have problems during exercises with unidentified UAVs located over the exercise area. UAVs which can observe exercises and map infrastructure and abilities. This paper aims to investigate what capabilities a handheld laser pointer would create to counteract the problem of UAVs that are located over training areas or adjacent to protected area. The thought of examining handheld laser pointers is that handheld laser pointers are not large, heavy or energy-intensive, which would enable them to spread within the Armed Forces to all services. Experiments with different handheld laser pointers are performed to investigate the effects they give at a certain distance. Experiments are also carried out to check at which distances a specific UAV can perform reconnaissance assignments, as well as the ability to detect a UAV at various distances with and without aids. The experiments showed that if the observer is aware of the direction of the UAV, it is possible to detect it at 600m distance with aids and at 500m without. The experiments also showed that laser gives a glare effect at 75m which is not close to a UAV's possible reconnaissance distances.
Subjects/Keywords: Reconnaissance drone; UAV; UAV reconnaissance; laserweapon; Laservapen; UAV; Spanings UAV; Drönare; Other Engineering and Technologies; Annan teknik
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APA (6th Edition):
Nilsson, P. (2017). Blända kommersiella UAV:er med laservapen. (Thesis). Swedish Defence University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-6773
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Nilsson, Patrik. “Blända kommersiella UAV:er med laservapen.” 2017. Thesis, Swedish Defence University. Accessed February 23, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-6773.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Nilsson, Patrik. “Blända kommersiella UAV:er med laservapen.” 2017. Web. 23 Feb 2020.
Vancouver:
Nilsson P. Blända kommersiella UAV:er med laservapen. [Internet] [Thesis]. Swedish Defence University; 2017. [cited 2020 Feb 23].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-6773.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Nilsson P. Blända kommersiella UAV:er med laservapen. [Thesis]. Swedish Defence University; 2017. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-6773
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
27.
Barac, Daniel.
Localization algorithms for indoor UAVs.
Degree: UASTECH - Autonomous Unmanned Aircraft Systems Technologies, 2011, Linköping UniversityLinköping University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-72217
► The increased market for navigation, localization and mapping system has encouraged the research to dig deeper into these new and challenging areas. The remarkable…
(more)
▼ The increased market for navigation, localization and mapping system has encouraged the research to dig deeper into these new and challenging areas. The remarkable development of computer soft- and hardware have also opened up many new doors. Things which more or less where impossible ten years ago are now reality.
The possibilities of using a mathematical approach to compensate for the need of expensive sensors has been one of the main objectives in this thesis. Here you will find the basic principles of localization of indoor UAVs using particle filter (PF) and Octomaps, but also the procedures of implementing 2D scanmatching algorithms and quaternions. The performance of the algorithms is evaluated using a high precision motion capture system. The UAV which forms the basis for this thesis is equipped with a 2D laser and an inertial measurement unit (IMU). The results show that it is possible to perform localization in 2D with centimetre precision only by using information from a laser and a predefined Octomap.
Subjects/Keywords: UAV; particle filter; Octomap; localization
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APA ·
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APA (6th Edition):
Barac, D. (2011). Localization algorithms for indoor UAVs. (Thesis). Linköping UniversityLinköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-72217
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Barac, Daniel. “Localization algorithms for indoor UAVs.” 2011. Thesis, Linköping UniversityLinköping University. Accessed February 23, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-72217.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Barac, Daniel. “Localization algorithms for indoor UAVs.” 2011. Web. 23 Feb 2020.
Vancouver:
Barac D. Localization algorithms for indoor UAVs. [Internet] [Thesis]. Linköping UniversityLinköping University; 2011. [cited 2020 Feb 23].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-72217.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Barac D. Localization algorithms for indoor UAVs. [Thesis]. Linköping UniversityLinköping University; 2011. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-72217
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
28.
Perfect, Oscar.
Konstruktion av startkatapult för UAV : Utvecklad för Discoverer RPAS.
Degree: The Institute of Technology, 2014, Linköping UniversityLinköping University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-106938
► Obemannade system blir allt vanligare både på den militära och kommersiella marknaden. Unmanned Aerial Vehicle, i vardagsspråk benämnt som drönare, är ett flygplan som…
(more)
▼ Obemannade system blir allt vanligare både på den militära och kommersiella marknaden. Unmanned Aerial Vehicle, i vardagsspråk benämnt som drönare, är ett flygplan som ombord saknar en mänsklig pilot. Då utbudet och efterfrågan av obemannade farkoster ökar måste tillverkarna lägga mer fokus på att kunna erbjuda hela system, vilket innebär att vid försäljning kan ett komplett system för obemannade farkoster erbjudas. Därför är behovet av tillbehör och kringutrustning idag lika viktigt som det obemannade flygplanet. Unmanned Systems Group grundades 2012 med verksamhet i både Schweiz och Sverige. Företaget förser den globala marknaden med innovativa produkter och tekniska lösningar inom området för Remotely Piloted Aircraft Systems. Veksamhetskontoret i Linköping utvecklar helhetslösningar av obemannade flygplan, vilket innebär att flygplanet har möjlighet att operera autonomt. Det betyder att flygplanet kan operera oberoende av i vilken miljö den befinner sig i. En förutsättning för autonoma flygplan är att start ska kunna ske när tillfredställande startbana saknas, vilket ofta möjligörs av en startmekanism. Unmanned Systems Group önskar få hjälp med utveckling och konstruktion av en startkatapult som är ämnad för deras flygplattform Discoverer. Utvecklingsarbetet skulle genomföras från grundidéer av startmekanismer till ett koncept som vidareutvecklas och konstrueras i en CAD-modell tillsammans med ett Excel-baserat beräkningsverktyg. I mån av tid skulle modellen resultera i en prototyp som kan utvärdera och verifiera dess teoretiska dokumentation. Följande examensarbete utvecklar och konstruerar en startkatapult för flygplattformen Discoverer för att ge den bättre autonoma egenskaper. Slutresultatet ska vara en CAD-baserad modell tillsammans med ett Excel-baserat beräkningsverktyg som levereras till Unmanned Systems Group vid avslutat och godkänt examensarbete. Modellen och beräkningsverktyget ska tillsammans ge det slutgiltiga konceptets teoretiska funktion och prestanda. Examensarbetets slutresultat är en CAD-modell som konstruerats med syftet att tillverka en prototyp för att verifiera det framtagna beräkningsverktyget. Det slutgiltiga konceptet använder ett pneumatiskt energisystem som med hjälp av komprimerad luft, en cylinder med en projektil och en släde accelererar flygplattformen till sin givna utgångshastighet. Startkatapultens struktur och komponenter har konstruerats för att tillsammans utgöra en stabil och säker prototyp.
Unmanned systems are becoming increasingly common in both the military and commercial market. Unmanned aerial vehicle, or in everyday language referred to as drones, is an aircraft that do not have a human pilot onboard. As the supply and demand of unmanned aircraft increases, manufacturers must put more focus on a complete system, meaning that the manufacturer can offer a complete system for unmanned aircraft. Therefore the need of accessories and peripherals are today as important as the unmanned aircraft. Unmanned Systems Group was founded…
Subjects/Keywords: Maskinkonstruktion; Startkatapult; UAV; Konstruktion
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APA ·
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Export
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Manager
APA (6th Edition):
Perfect, O. (2014). Konstruktion av startkatapult för UAV : Utvecklad för Discoverer RPAS. (Thesis). Linköping UniversityLinköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-106938
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Perfect, Oscar. “Konstruktion av startkatapult för UAV : Utvecklad för Discoverer RPAS.” 2014. Thesis, Linköping UniversityLinköping University. Accessed February 23, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-106938.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Perfect, Oscar. “Konstruktion av startkatapult för UAV : Utvecklad för Discoverer RPAS.” 2014. Web. 23 Feb 2020.
Vancouver:
Perfect O. Konstruktion av startkatapult för UAV : Utvecklad för Discoverer RPAS. [Internet] [Thesis]. Linköping UniversityLinköping University; 2014. [cited 2020 Feb 23].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-106938.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Perfect O. Konstruktion av startkatapult för UAV : Utvecklad för Discoverer RPAS. [Thesis]. Linköping UniversityLinköping University; 2014. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-106938
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Halmstad University
29.
Tell, Fredrik.
CCUAV : Cloud Center for Unmanned Aerial Vehicle.
Degree: Halmstad University, 2018, Halmstad University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-36304
► Projektets syfte är att bryta kopplingen mellan en specifik användare och drönare. Målet med projektet är att flera användare ska kunna hantera flera drönare…
(more)
▼ Projektets syfte är att bryta kopplingen mellan en specifik användare och drönare. Målet med projektet är att flera användare ska kunna hantera flera drönare från en central. En länk mellan en internetbaserad plattform vid namn Thingworx och en drönare med en inbyggd styrenhet, som kallas Pixhawk, sammankopplas med mikrodatorn Raspberry Pi 3. Sjöräddningssällskapet i Sverige önskar ett interface där flera av deras drönare med den inbyggda styrenheten kan hanteras och se dess position och videoström. PDSVisions mål är att skapa en demonstrator i en nyutvecklad plattform som förenklar uppkoppling med enheter med hjälp av ett begrepp som kallas IoT (Internet of Things). Resultat har resulterat i en prototyp av Sjöräddningssällskapets drönare ämnad att kontrolleras via den internetbaserade plattformen Thingworx. Drönaren startar, lyfter från marken och flyger en planerad rutt utan pilot. Slutsatsen visade att projektet kunde genomföras samt att det är möjligt att kommunicera med drönare via Thingworx
Subjects/Keywords: UAV; drönare; Computer Engineering; Datorteknik
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APA ·
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Export
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Manager
APA (6th Edition):
Tell, F. (2018). CCUAV : Cloud Center for Unmanned Aerial Vehicle. (Thesis). Halmstad University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-36304
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Tell, Fredrik. “CCUAV : Cloud Center for Unmanned Aerial Vehicle.” 2018. Thesis, Halmstad University. Accessed February 23, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-36304.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Tell, Fredrik. “CCUAV : Cloud Center for Unmanned Aerial Vehicle.” 2018. Web. 23 Feb 2020.
Vancouver:
Tell F. CCUAV : Cloud Center for Unmanned Aerial Vehicle. [Internet] [Thesis]. Halmstad University; 2018. [cited 2020 Feb 23].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-36304.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Tell F. CCUAV : Cloud Center for Unmanned Aerial Vehicle. [Thesis]. Halmstad University; 2018. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-36304
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Windsor
30.
Zhang, Tong.
Deployment of Real Time UAV Aerial Surveillance with Coverage Model.
Degree: MA, Electrical and Computer Engineering, 2017, University of Windsor
URL: https://scholar.uwindsor.ca/etd/7412
► This thesis assesses the feasibility of applying coverage model to the problem of using unmanned aerial vehicles (UAVs) for aerial surveillances. The purpose of aerial…
(more)
▼ This thesis assesses the feasibility of applying coverage model to the problem of using unmanned aerial vehicles (UAVs) for aerial surveillances. The purpose of aerial surveillance is using sensors to cover the task area to obtain the information regarding to this area, such as environmental study. Comparing to static sensors, business purposes UAVs have higher mobility. Since static sensors have limited sensing range, it is not possible to use them to cover the task area. UAVs with sensors onboard can be used for surveillance and save the data to obtain more detailed information of the task area. The data retrieved by the sensors can be used for developing autonomous control algorithms for navigation of the
UAV. However, there are some inevitable factors that shortens the flight time of the
UAV. For example, considering the maximum payload of the
UAV, the battery of
UAV can usually last at most 30 minutes since it cannot be very large. It is very important to improve the efficiency of
UAV surveillance by pre-designing the flight path for one UAVs or deployment positions for multiple UAVs.
Advisors/Committee Members: Chen, Xiang.
Subjects/Keywords: Coverage Model; Sensor Network; UAV
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APA ·
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APA (6th Edition):
Zhang, T. (2017). Deployment of Real Time UAV Aerial Surveillance with Coverage Model. (Masters Thesis). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/7412
Chicago Manual of Style (16th Edition):
Zhang, Tong. “Deployment of Real Time UAV Aerial Surveillance with Coverage Model.” 2017. Masters Thesis, University of Windsor. Accessed February 23, 2020.
https://scholar.uwindsor.ca/etd/7412.
MLA Handbook (7th Edition):
Zhang, Tong. “Deployment of Real Time UAV Aerial Surveillance with Coverage Model.” 2017. Web. 23 Feb 2020.
Vancouver:
Zhang T. Deployment of Real Time UAV Aerial Surveillance with Coverage Model. [Internet] [Masters thesis]. University of Windsor; 2017. [cited 2020 Feb 23].
Available from: https://scholar.uwindsor.ca/etd/7412.
Council of Science Editors:
Zhang T. Deployment of Real Time UAV Aerial Surveillance with Coverage Model. [Masters Thesis]. University of Windsor; 2017. Available from: https://scholar.uwindsor.ca/etd/7412
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Open Access Theses and Dissertations
