National Repository of Grey Literature 662 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Demonstration Applications of PLC and Frequency Inverter
Šimco, Viktor ; Arm, Jakub (referee) ; Bradáč, Zdeněk (advisor)
The bachelor thesis is devoted to the description of the ACS880-01 frequency converter and the components of the demonstration panel. It includes a description of the frequency converter functions, its parameters, additional elements and safety options. It also briefly describes the asynchronous motor control, communication interfaces and possible add-on modules of the frequency converter. Subsequently, it includes the design of demonstration tasks and documentation of their implementation, SW equipment, visualization and configuration of the individual components.
Embedded Control of Non-Contacting Waveguide Sliding Short
Horvát, Martin ; Pánek, Richard (referee) ; Strnadel, Josef (advisor)
Táto práca sa zaoberá návrhom a implementáciou softwarového riadiacého systému pre bezkontaktný nastaviteľný vlnovodový skrat použitím krokového motoru. Predstavuje návrh systému ktorý podporuje implementáciu ľubovolného komunikačného protokolu, a ktorý môže byť použitý s ľubovoľným krokovým motorom. Predstavený návrh bol implementovaný na mikrokontroléry Texas Instrument AM243x Sitara, využitím operačného systému reálneho času FreeRTOS. Systém podporuje komunikáciu cez automatizačný protokol EtherNet/IP, a cez prispôsobený seriový textový protokol využívajúci UART. Systém bol testovaný a vyhodnotený pomocou testou presnosti pozície, reprodukovatelnosti pozície a testom fázového posunu odrazenej vlny.
Extension of the magnetic manipulator teaching model using a microcontroller for independent operation
Štupák, Jakub ; Králík, Jan (referee) ; Appel, Martin (advisor)
This thesis deals with the design, control and user interface for a magnetic manipulator. Created magnetic manipulator uses three electromagnets, which are used to control the position of a steel ball. The objective of this work was to enhance and extend the functionality of this system, including adding the ability for autonomous operation. Regulation can be executed through either an externally connected HUMUSOFT card or an integrated microcontroller. This enables the use of this system without external hardware and simplifies manipulation. Communication between the system and user is enabled with the use of the ESP32 Bluetooth functionality and an Android app.
Design of a torque vectoring control system for a Formula student vehicle
Gadas, Petr ; Blaťák, Ondřej (referee) ; Míša, Jiří (advisor)
Tato diplomová práce se zabývá problematikou zvýšení výkonu vozidla při jízdě zatáčkou pomocí aktivního řízení hnacího momentu závodního vozu kategorie Formule Student. Náplní práce je návrh, simulace a následně testování algoritmu, který na základě zvolených parametrů řídí rozdělení momentu na hnané nápravě, aby bylo dosaženo optimálního stáčení vozidla pří zatáčení. Systém byl navržen na základě cíleného dynamického chování vozu při průjezdu zatáčkou. Pomocí virtuálního prostředí byly obdrženy simulační klíčové výsledky vlivu na chování vozidla, které byly následně validovány testováním na trati. Celkovým cílem práce bylo navýšení jízdní rychlosti a kontroly and vozidlem během zatáčení, s výsledkem snížení jízdního času na trati.
Locus Map Extension for Communication between Units on the Battlefield
Bukas, Jozef Michal ; Rychlý, Marek (referee) ; Hranický, Radek (advisor)
Existuje mnoho systémov riadenia bojiska, ale nie sú dostupné pre širokú verejnosť. Mnohé používateľské základne by však takýto systém mohli využiť. Napríklad nadšenci milsimu, záchranné služby, prípadne poľovníci počas organizovaných poľovačiek. Cieľom tejto bakalárskej práce je vytvoriť open-source rozšírenie systému riadenia bojiska pre aplikáciu Locus Map. Samotný klient bol implementovaný ako Android aplikácia ktorá využíva Locus API na integráciu do aplikácie Locus Map ktorá dopĺňa klienta mapou a funkciamy s ňou spojenými. Samotný system používa architektúru klient-server kde komnukácia medzi serverom a klientom používa protokol WebSocket pre skoro okamžitú propagáciu dát zo serveru ku klientom. Nakoniec bol tento systém otestovaný priamo v akcií napríklad na dvoj-dňovej airsoftovej akcií.
Application of Management Control System in a Business
Plecitá, Terezie ; Šafránek, Martin (referee) ; Žižlavský, Ondřej (advisor)
The diploma thesis focuses on the analysis and optimization of controlling in a selected company. The thesis is divided into three main parts. The first, theoretical part, defines the basic concepts of controlling. In the second part the existing controlling system in the company is evaluated and analyzes deviations of achieved results from the financial plan for the year 2023. The final, proposal part, presents a possible solution for improving the use of controlling in the company.
Design and analsysis of magnetic bearing
Kyanka, Radim ; Ctibor, Jiří (referee) ; Rúra, Dávid (advisor)
The master thesis is focused on literature research and description of magnetic bearings in order to create a design model of a stand for demonstration of magnetic levitation. The simulated model is developed using the finite element method. It also discusses the advantages and disadvantages along with a comparison with conventional bearings in drives. Analytical design is discussed here, which is also simplified and neglects several parasitic effects. These analyses are then discussed. The main part of thesis containe design and calculation for an 8-pole active radial heteropolar magnetic bearing. The result of the design is then applied to the realization of the demonstrator.
Design and implementation of a platform for control LLC-type inverter with a wide input supply voltage range using a FPGA circuit
Pokorný, Ondřej ; Levek, Vladimír (referee) ; Prokop, Roman (advisor)
This master’s thesis deals with the emulation of LLC converter control with a wide input voltage range using a created emulation platform. The first part of this work is focused on the design of resonant converters with a wide input voltage range. Based on theoretical knowledge, an adjustment of the emulation LLC converter is made. The converter modification is concluded with a simulation, where the correctness of the design and the fulfillment of the ZVS parameter in the entire input voltage range are verified. In the next part of the work, an analysis of the control issues of resonant converters, more precisely LLC type resonant converters, is carried out. The acquired knowledge is used for the design of a new emulation platform, which will serve for the emulation of LLC converter control with a wide input voltage range. The last part of the work is the creation of an emulation program for FPGA in SystemVerilog language. The work is concluded by verifying the functionality of the emulation on physical hardware.
HMI for a 3D milling machine using FactoryTalk Optix
Uher, Adam ; Foukal, Roman (referee) ; Štohl, Radek (advisor)
The thesis focuses on the design and implementation of an HMI (Human Machine Interface) for 3D milling machine. Basic visualization rules, best practises, principles of ergonomic design, and the creation of user interfaces are described. Visualization tools for the LOGIX PLC series are outlined, which can be utilized in HMI development. Following the guidelines and specified requirements in this paper, a design for HMI is created using the FactoryTalk Optix visualization tool. Changes to the functional safety and PLC program are identified and implemented. Subsequently, the visualization of the milling machine is carried out and the functions of the new system are subjected to testing.
Possibilities of controlling the greater sage-grouse (\kur{Heracleum mantegazzianum}) by cattle grazing
RYBÁŘ, Štěpán
Undergraduate thesis focuses on the ability to control greater sage-grouse by grazing cattle. The research was carried out on four plots of land near the village of Střítež near the town of Kaplice. Mapping was carried out on each plot in a defined square for a period of four months. In the squares with the presence of this invasive plant, the size and width of the leaf rosettes of the plants were recorded. Subsequently, the species distribution of other plant species was determined. The measured results were recorded in graphs and averages. Finally, suggested actions on plots with this invasive plant are presented. Grazing with higher intensity and frequency, and multiple mowing outside the pasture, seems to be the most suitable method of sage-grouse control for the study site.

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