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Localisation of Mobile Robot in the Environment
Němec, Lukáš ; Hradiš, Michal (referee) ; Veľas, Martin (advisor)
This paper addresses the problem of mobile robot localization based on current 2D and 3D data and previous records. Focusing on practical loop detection in the trajectory of a robot. The objective of this work was to evaluate current methods of image processing and depth data for issues of localization in environment. This work uses Bag of Words for 2D data and environment of point cloud with Viewpoint Feature Histogram for 3D data. Designed system was implemented and evaluated.
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Object Detection Using Kinect
Němec, Lukáš ; Veľas, Martin (referee) ; Španěl, Michal (advisor)
This paper address the problem of object recognition using Microsoft Kinect in the fi eld of computer vision. The objective of this work was to evaluate current methods of detection of objects using depth map (RGB-D sensor). The work deals with the enviroment of point cloud and Viewpoint Feature method. It also describes the use of binary classifi er in the context of object recognition. Object detection was implemented and performed experiments with it.
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Optimal Path Planning for Omnidirectional Robot
Němec, Lukáš ; Kapinus, Michal (referee) ; Rozman, Jaroslav (advisor)
The work is devoted to planning trips for robot, which is equipped with Mecanum omnidirectional wheels and a square carriage. The theoretical part is devoted omnidirectional wheels and various types of planners With a focus on informed planners, locating the position and movement of optimality. The practical part is devoted to the implementation of selected planners and comparing their results in terms of optimality of movement for omnidirectional robot, optimality check consists of comparing several properties of the proposed path.
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Traffic crime and its prevention
Němec, Lukáš ; Říha, Jiří (advisor) ; Bohuslav, Lukáš (referee)
Traffic Crime is a phenomenon that practically everyone can encounter in everyday life. It is a severe society-wide issue that cannot be overlooked. This thesis explores various aspects of traffic crime with emphasis on road traffic, and all of that mostly from criminological and partly from criminal law perspective. This thesis is divided into four parts. The first part looks at traffic crime as a whole, on its definition, severity and its evolution in recent years. It further explores ways in which criminal law enforcement agencies decide crimes in this area and compares the evolution of traffic crime with the evolution of traffic density. In the second part this thesis analyses in detail the most often committed traffic crimes. This part also describes the typical perpetrator of traffic crime and mentions some reasons that lead to the commitment of traffic crime. The lack of societal condemnation of traffic regulations is described as the most important reason. The following part examines the most often committed traffic crimes and some conditions that are required for the fulfilment of their facts of criminal offences. Special emphasis is given to the crime of endangerment under the influence of addictive substances because it is the most often committed traffic crime. In particular this thesis...
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Design of production technology for a grinding wheel flange
Němec, Lukáš ; Zemčík, Oskar (referee) ; Sliwková, Petra (advisor)
The bachelor’s thesis deals with the design of technology for the production of a component called a basic flange. The component is used for clamping the grinding wheel and is made of alluminum alloy. First there are theoretically dismantled individual production technologies, machinability and tool materials. The production technology for production in small series is designed and machinery and tooling equipment are selected. Furthermore, the bachelor’s thesis includes technological process and manufacturing instructions, which contains the cutting conditions for each tool. The manufacturing instructions are used to determinate machine time, among other things. Finally, the actual production of the component is shown.
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Analýza výstupních parametrů souprav na zpracování půdy
Němec, Lukáš
The thesis introduces and briefly describes an overview of tillage's technologies which are applied in modern agricultural operations. These are the technical resources by which it is possible to achieve maximum productivity values, with minimum impact on the environment, which are requested by their users these days. It further approaches on trends in the area of the precision agriculture and provides a list of innovations which have the potential to streamline systems of tillage and crop production. Finally, the thesis analyses the output of parameters of the kit Case IH Quadtrack and Horch Tiger Lt. This is in particular the dependence of values such a performance and hectare consumption on the operating mode of the engine. This analysis was based on data collected during field measurement on 30th March 2016 on land owned by company called Roštenice a.s.
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PCM-based heat and cold storage
Němec, Lukáš ; Ostrý, Milan (referee) ; Šikula, Ondřej (advisor)
In the first part of the bachelor thesis I will deal with the accumulation of heat and cold using materials with phase change and also the design of a PCM storage tank. The aim of my effort is to design the most ideal spacing of tubes in a given tank, so as to achieve the greatest possible heat capacity. I performed simulation experiments in CalA 4.0. The second part is computational, where I focus on the design of heating in the pension. I solve heating with an air-to-water heat pump. I designed solar collectors for hot water heating. The last and third part is the project, which contains the project documentation together with the technical report.
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The world of work through the perspective of state, labour unions and employers. Building a hegemony.
Němec, Lukáš ; Lánský, Ondřej (advisor) ; Májíček, Jan (referee)
(in English): During adolescence, a person's value orientations towards society, employment, and the economy are being shaped significantly. The educational system plays an important role in this maturing of a person's values in that it provides key social orientation in the form of knowledge, consciousness, or opinions. The theory of cultural and social reproduction was among the first analyses of critical education that drew attention to the fact that this mediation of orientation serves for the maintaining (reproduction) of social inequalities in society. The basic question of education according to these analyses of critical education thus is not what knowledge we get at school, but rather whose knowledge. In the Czech Republic, ca. 73% of pupils go through secondary vocational training. After graduation, most of these pupils are the first to enter the world of paid labor at a relatively early age. Between 2004 and 2012, intermediate vocational training underwent a change of system in the form of the implementation of curriculum reform in connection with the adoption of Act No. 561 / 2004 Coll. on Preschool, Elementary, Secondary, Tertiary Vocational, and Other Education. Curriculum reform enabled various social agents to influence the goals and content of education at the national level...
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Optimal Path Planning for Omnidirectional Robot
Němec, Lukáš ; Kapinus, Michal (referee) ; Rozman, Jaroslav (advisor)
The work is devoted to planning trips for robot, which is equipped with Mecanum omnidirectional wheels and a square carriage. The theoretical part is devoted omnidirectional wheels and various types of planners With a focus on informed planners, locating the position and movement of optimality. The practical part is devoted to the implementation of selected planners and comparing their results in terms of optimality of movement for omnidirectional robot, optimality check consists of comparing several properties of the proposed path.
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