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Quadrotor altitude stabilization
Ligocki, Adam ; Kříž, Vlastimil (referee) ; Gábrlík, Petr (advisor)
The aim of this thesis is to design and implement a vertical stabilization for drone developed at the Department of Control and Instrumentation of the Faculty of Electrical Engineering and Communication. Work gradually deals with summary of already existing solutions of already existing projects, analysis of individual sensors possible to be applied in this project and evaluate their pros and cons for measuring the flight altitude. It also deals with the mathematical apparatus suitable for processing altitude data and the design and implementation of the controller for the movement of the drone in the vertical axis. The conclusion summarizes the results achieved on real hardware.
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Quadrocopter - Navigation Unit
Jurajda, David ; Florián, Tomáš (referee) ; Žalud, Luděk (advisor)
This bachelor´s thesis deals with navigation of the experimental flying device called Quadrocopter. It deals especially with navigation in open space by using global navigation satellite system GPS. The opening part of my thesis deals with GPS options and utilization in the Quadrocopter project. The middle part discusses design of the navigation module and the final part deals with data processing and its usage in navigation.
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Quadrocopter Navigation and Control
Doležal, Karel ; Orság, Filip (referee) ; Herman, David (advisor)
This paper focuses on autonomous navigation of AR.Drone quadrocopter in outdoor environment. The goal is to follow a specified route and land autonomously on a platform placed at the destination. Firstly, the AR.Drone platform, its development kit and sensor extension with GPS and a magnetic compass are described. Then, the navigation architecture of a control program is presented describing important blocks and its' individual tactics. Localization of the landing platform is based on its color. The video is also used to detect nearby obstacles using optical flow calculation suppressing the quadrocopter movements and to avoid the greater changes in the image. The control program implementation is then tested in real environment and the results are presented.
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Design of Quadrocopter
Uhlíř, Václav ; Rozman, Jaroslav (referee) ; Hájek, Josef (advisor)
This student paper discusses basic concept of quadrocopter for purpose of academic platform for testing and development. Paper includes basic overview of construction, stabilization and controlling of quadrocopter. As result of this paper is presented concept of quadrocopter and its constructed prototype with included software console for wireless control under Android system.
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Hybrid Control System for Quadrocopter
Sojka, Stanislav ; Mlích, Jozef (referee) ; Dittrich, Petr (advisor)
This thesis deals with the design and theoretical description of the hybrid control system for quadrocopter. First, a mathematical model is presented, sensors needed for development and their principles. This work shows the system architecture design and scheme of communication channels between the blocks. Implementation section discusses specific uses of computing nodes/sensors and their settings. In this thesis there are illustrated messages sent between computing nodes and the control loop machine. It also describes how to test the sensors, measurement results and techniques for improvement.
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Quadrocopter - Control Unit and Communiaction
Vomočil, Jan ; Kopečný, Lukáš (referee) ; Žalud, Luděk (advisor)
This thesis deals with design control and communication unit for flying robot known as Quadrocopter. The goal is design and practical implementation unit, which allows measurement of tilt and rotation of the robot in the airspace using inertial sensors. Furthermore, this unit conveys the user information about the flight altitude at which the robot is located. All measured data are transmitted via communication modules to the ground and processed user software.
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Universal Control System for Quadrocopter
Gábrlík, Petr ; Kříž, Vlastimil (referee) ; Žalud, Luděk (advisor)
The Thesis objective is the design and implementation of the universal control system for a flying robot, quadrotor concept. The first part deals with ways of solving program for microcontrollers. The special attention is given to the FreeRTOS real-time operating system, which is designed for microcontrollers. The second part of the Thesis is focused on the description of the chosen microcontroller LM3S8962 and the hardware solution. One chapter is devoted to the integration of the robot to the Cassandra-WPF robotic control system. The third part deals with the identification of the new robot construction and the mathematical model creation. Using the model controllers for stabilization pitch and roll are designed and their functionality is verified on a physical model. The last part of the Thesis is focused on the FreeRTOS implementation and the control application creation.
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Autonomous Landing System for Quadrocopter
Vomočil, Jan ; Kopečný, Lukáš (referee) ; Žalud, Luděk (advisor)
This thesis describes the design and implementation of systems for automatic landing and stabilization of air vehicle known as Quadrocopter. It focuses on image processing from a camera placed on board of the robot. The aim of image processing is detect landing target and calculate the distance from the desired position. Further is solved vertical stabilization for higher altitudes. For this function is measured atmospheric pressure. Conversely, for low altitude flight is used a ultrasonic range finder. In the conclusion is solved the implementation of the system.
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Quadrocopter - Sensory Subsytem
Bradáč, František ; Šolc, František (referee) ; Žalud, Luděk (advisor)
This diploma thesis deals with processing of measured data from inertial navigation system in order these could be used for stabilization. There is general information about aerial vehicles called copters with emphasis on four-rotor construction called quadrocopter at first. Then mathematical model of quadrocopter in state space form is derived, the particular implementation of university developed quadrocopter is described and the design of data processing algorithm is presented with measured results. Finally achieved results are discussed.
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