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Application of MATLAB Coder for automatic generation of C code for dsPIC microcontrollers
Mácha, Tomáš ; Křivánek, Václav (referee) ; Grepl, Robert (advisor)
Generating C code from MATLAB can be a powerful tool for a wide range of engineering problems. Especially in cases where MATLAB excels, including matrix operations and some of the built-in functions, code conversion may represent a significant assistance in their development. The aim of this master's thesis is to explore the possibilities of generating C code using MATLAB Coder App. As the documentation for MATLAB Coder was not found sufficient a theoretical basis for the use of this tool was introduced along with simple examples of possible applications. Next, code generation for controlling a laboratory DC motor using a microcontroller dsPIC was made automatic and controlled directly from a single MATLAB script. Individual steps were described to supplement existing documentation and to allow for an easy use. Finally, selected functions were tested for code generation. As a result, certain limitations can be outlined, as well as suitability of both the created tool and the MATLAB Coder App.
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Modelování chůze čtyřnohého robotu
Číž, Adam ; Křivánek, Václav (referee) ; Grepl, Robert (advisor)
This thesis deals with creation of a dynamic model of a walking quadruped robot in MATLAB/Simscape Multibody environment. It describes the process of creation from modelling of the geometry all the way to the gait algorithm assembly. Inverse kinematics was used to create the gait algorithm. The thesis also includes evaluation of the outputs of the model in form of angular velocity and torque time course in the joints of the robot while walking.
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Modeling and identification of medieval catapult
Štupák, Jakub ; Křivánek, Václav (referee) ; Grepl, Robert (advisor)
This thesis is about modelling and optimalization of medieval trebuchet and few of his simplified variants. First part contains information about similar siege engines, description of working principles of medieval trebuchets and his parameters used in history. In practical part have been created four modes of trebuchet with different level of simplification. Subsequently have been calculated range and efficiency of this system in dependence on his parameters. These parameters have been optimized to obtain maximum range, and obtained results have been compared between models. Lastly real, scaled model of trebuchet have been made, and his motion have been compared with motion of computer-based model. With this computer-based model have been also obtained optimal parameters of scaled trebuchet.
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Design of an application for educational model of a manipulator with three degrees of freedom
Youssef, Daniel ; Křivánek, Václav (referee) ; Klimeš, David (advisor)
Tato práce popisuje další vývoj výukového sériového manipulátoru se třemi stupni volnosti. Práce se zabývá jednoduchou mechanickou úpravou manipulátoru, ale především pak softwarovou částí. Výsledkem je pak hra piškvorky, kdy manipulátor umožňuje hru proti lidskému protějšku. První část práce je věnována zlepšení inicializačního procesu manipulátoru a následně pak i návrhem vhodné polohové regulace. V další části je manipulátor rozšířen o jeden stupeň volnosti. Součástí je i návrh koncového efektoru vhodného pro psaní. Z takto upraveného manipulátoru je sestaven kinematický model vhodný pro real-time řízení. Dalším krokem v práci je návrh samotné aplikace hry piškvorky. Je navržen vhodný hrací algoritmus, včetně detekce a rozpoznání znaků v hracím poli pomocí kamery. Následně je vše implementováno do real-time aplikace, kde komunikaci s uživatelem zajišťuje navržené uživatelské rozhraní.
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Design and realization of mechanical components of the robotic head
Michal, Mikuláš ; Křivánek, Václav (referee) ; Spáčil, Tomáš (advisor)
In the beginning of this thesis the movement of human head and it’s limitations are described afterwards 2 possible mechanisms with either 2 or 3 degrees of freedom which could realize the required movement are described. The following part focuses on the assembly of a prototype and it’s control algorithm. The last part describes different ways a platform with at least 2 degrees of freedom could be realized with focus on construction of the platform and adequate propulsion. A chosen variant is then realized.
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Automatic synchronization of projected and scanned images
Šura, Jakub ; Křivánek, Václav (referee) ; Appel, Martin (advisor)
This bachelor’s thesis deals with creating a software solution in MATLAB for automatic synchronization of scanned depth map and projected image capable of working with various RGB-D sensors. The tested sensors are two versions of Microsoft Kinect. Research deals with overviewing and classifying various depth map sensing technologies. It describes the evolution and classification of different technologies, compares their advantages and disadvantages, and presents their examples on current market.
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Sensors and motion control for humanoid robot
Chlaň, Jakub ; Křivánek, Václav (referee) ; Najman, Jan (advisor)
The presented diploma thesis deals with the design and construction of a simple humanoid robot with two arms attached to a torso. The work was solved as a team project of two authors. Therefore, only the construction of the arm, which is inspired by the kinematics of the human arm is described in more detail. Its construction was the task of the author. An important part of the work is the selection of drives and sensors for the operation of the mechanism. Furthermore, the work presents the procedure of creating a kinematic model of the arms to solve the forward and inverse kinematics problem. For the possibility of motion control, the control of the control unit in Simulink was designed and the drive control was created.
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Research of Methods for Significant Accereation of Parameter Estimation of Simulation Models
Appel, Martin ; Opluštil, Vladimír (referee) ; Křivánek, Václav (referee) ; Grepl, Robert (advisor)
The thesis focuses on achieving a significant speed-up in the estimation of simulation model parameter values. This is achieved through the appropriate choice of a solver that is computationally less demanding, but at the same time has an acceptable error in the range of parameter values, through the use of distribution of computations on parallel threads, heuristic methods for reducing the space of parameter values, and modification of optimization methods. In this thesis, the research related to the objectives of the thesis is first discussed, then the exact objectives of this thesis are stated and the implementation of each objective is described in separate chapters. The results of this thesis include a tool used to analyze solver choice, an analysis of parallel thread efficiency, a parallel simulation distribution tool, nine modified optimization methods, and a new tool for estimating parameter values. Finally, the results obtained are evaluated.
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