|
|
Control System of Small Mobile Robot
Rysnar, Jiří ; Florián, Tomáš (referee) ; Žalud, Luděk (advisor)
This master’s thesis elaborates on the control of a wheeled mobile robot and its sensor system. The sensors provide information about distances of obstacles in its surroundings and orientation in area. The communication is realized by radiomodems, commands and data are sent by serial link between microncontroller and the PC.
|
|
|
Laser proximity scanner - Electronics
Padyšák, Zdeněk ; Burian, František (referee) ; Žalud, Luděk (advisor)
In first chapter I introduce with aim of diploma work and in second chapter with principles distance measuring in robotic. After it in next chapter I describe used distance sensor, his principle and characteristics. In fourth chapter I describe control and parts mechanics shoulders. The fifth chapter describes program, which control mechanics shoulders by the 32bits microcontroller Freescale. At last sixth chapter gained data are modified and resulting imagery in 2D and in 3D.
|
|
|
Multispectral Map Building in Mobile Robotics
Burian, František ; Mazal,, Jan (referee) ; Zemčík, Pavel (referee) ; Žalud, Luděk (advisor)
The dissertation deals with utilisation of multispectral optical measurement for data fusion that may be used for visual telepresence and indoor/outdoor mapping by heterogeneous mobile robotic system. Optical proximity sensors, thermal imagers, and tricolour cameras are used for the fusion. The described algorithms are optimised to work in real-time and implemented on CASSANDRA robotic system made by our robotic research group.
|
|
|
Advanced Navigation in Heterogeneous Multi-robot Systems in Outdoor Environment
Jílek, Tomáš ; Duchoň,, František (referee) ; Mazal, Jan (referee) ; Žalud, Luděk (advisor)
The doctoral thesis discusses current options for the navigation of unmanned ground vehicles with a focus on achieving high absolute compliance of the required motion trajectory and the obtained one. The current possibilities of key self-localization methods, such as global satellite navigation systems, inertial navigation systems, and odometry, are analyzed. The description of the navigation method, which allows achieving a centimeter-level accuracy of the required trajectory tracking with the above mentioned self-localization methods, forms the core of the thesis. The new navigation method was designed with regard to its very simple parameterization, respecting the limitations of the used robot drive configuration. Thus, after an appropriate parametrization of the navigation method, it can be applied to any drive configuration. The concept of the navigation method allows integrating and using more self-localization systems and external navigation methods simultaneously. This increases the overall robustness of the whole process of the mobile robot navigation. The thesis also deals with the solution of cooperative convoying heterogeneous mobile robots. The proposed algorithms were validated under real outdoor conditions in three different experiments.
|
|
|
Control Unit for Autonomous Vacuum Cleaner
Matějů, Jan ; Kopečný, Lukáš (referee) ; Žalud, Luděk (advisor)
This paper is in introduction focused on review of robotic vacuum cleaning and evaluation of available products qualities. However the main focus of this paper is system design of all subsystems, control systems and PCD design of robot electronics. In this paper is also described a method for evaluating approximate distance of robot from the obstacle. There are also described problems of system design of IR proximity sensors. The last part of this work is development of control software for robot and its testing.
|
|
|
Indoor Robot - Mechanical Construction and Power Electronics
Maťas, Marek ; Veselý, Miloš (referee) ; Žalud, Luděk (advisor)
The thesis is divided into several logical units. In the first part is described the topic of mobile robotics, construction, propulsion and control of mobile robots. Other parts are devoted to the design of robot’s mechanical structure, calculating the requirements for the proposed type of engines and drives. Finally, the control electronics for these engines is proposed, along with a program for microcomputer.
|
|
|
System for Automatic Calibration of a Robotic Tool
Šála, David ; Chromý, Adam (referee) ; Žalud, Luděk (advisor)
This Master's thesis describes the design and implementation of an experimental sample for automatic calibration of a robotic tool using machine vision methods under the auspices of the company SANEZOO EUROPE s.r.o. It deals with the analysis of all used methods of performing TCP calibration, on the basis of which it is implemented. The application is based on the Point-counterpoint method, where the robot is guided against the calibration point from three different directions, all perpendicular to each other. The calibration point is set using the ArUco marker. In order to detect the endpoint are used images from two cameras that are at the right angles to each other. Using conventional computer vision methods and an HSV filter, the endpoint of the instrument is found in the images and is guided to the calibration point. From the obtained coordinates, the searched endpoint of the robotic tool in the robot coordinates is found using the optimization method Particle Swarm Optimization. This application, therefore, performs TCP calibration in a fast time, thus reducing production downtime almost without human intervention.
|
|
|
Minidarpa robot - navigation system design
Kuna, Zdeněk ; Žalud, Luděk (referee) ; Kopečný, Lukáš (advisor)
This bachelor’s work is devided into two parts. The first part is theoretical, because it includes the principles of satellite navigation and the metodies of giving precision to position.The second part is aplication part and it describes the navigation subsystem of hardware and software equipment. The result of this bachelor’s work was made a navigation subsystem for robot, designed communication and implemented navigation algorithm into the robot.
|
|
|
Local Navigation for Outdoor Robot
Skácel, Martin ; Veselý, Miloš (referee) ; Žalud, Luděk (advisor)
This diploma thesis deals with complete designing and implementation of local navigation of a robot which travels according to set GPS. This work contains a study of contemporary used principles of the sensors which can be used as the components of the robot. There are sensors for measuring the surroundings of the robot and orientation of the robot in the environs. The equipment includes an instructing control unit with the ATmega8 microcontroller. This equipment collects data from the sensors and transfers them to the other systems of the robot. The following part of the thesis deals with the draft of the buses and communication protocols, which are necessary for connection between the sensors and the control unit. The I2C and RS232 buses were chosen as the most suitable. The communication protocol was borrowed from the semester project written by Bc. Michal Sitta. The main task of this control unit is reading out the data which have been measured from connected sensors. The realization of interface between the sensor bus and the major system is another core goal of the control unit. The system for a local navigation is designed with the approach which allows the widest range of extensibility. During the designing of the control unit the future possibility of insertion other sensors was taken into consideration.
|
|
|
Group of Walking Minirobots - Movement Synchronisation
Mihál, Jakub ; Florián, Tomáš (referee) ; Žalud, Luděk (advisor)
The aim of the work presented here is to get acquainted with the construction of the Robonova-I humanoid robot and with Ing. Florián’s dissertation “Control unit for humanoid robot”. Both the construction and the dissertation conclusions were tested, compared and, in the next part of the work, evaluated. Finally, a new software solution to the robot control and wireless communication was worked out.
|
guest ::
