National Repository of Grey Literature 144 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Wireless communicator for boat sport
Kubovičová, Lucia ; Šteffan, Pavel (referee) ; Levek, Vladimír (advisor)
The work deals with technologies related to wireless signal transmission, Bluetooth technology and the design of a device that is used to distribute helmsman's commands on a rowing boat. The device consists of two parts that communicate with each other using Bluetooth technology. Thus, both parts of the device have a Bluetooth module that works in both parts in different modes. The control of the device pairing process is provided by a microcontroller. There are buttons used for external communication and LEDs for signalization.
Configuring Integrated Circuit with a Single External Resistor
Chmelař, Martin ; Šteffan, Pavel (referee) ; Boušek, Jaroslav (advisor)
This thesis deals with the design and simulation of an analog circuit that is able to adjust the functions of other parts of the circuit by connecting an external resistor. The design is done in submicron technology.
Design of extremly low-voltage rectifier in CMOS technology
Musilová, Nikola ; Šteffan, Pavel (referee) ; Khateb, Fabian (advisor)
The aim of this work is to design a low-voltage and low-power rectifier using CMOS technology and an operational amplifier for input voltages in the order of tens of mV, which correspond to sensor and biomedical applications. The circuit allows both half-wave and full-wave rectification. The key parameters are high gain and very low power consumption of the operational amplifiers that make up the rectifier.
Low frequency preamplifier with audio input selector
Tlamka, Vladimír ; Levek, Vladimír (referee) ; Šteffan, Pavel (advisor)
This bachelor thesis is about the design and construction of a low-frequency stereo preamplifier with a digitally controlled switch of eight stereo inputs with different input sensitivities. In this task is the most important the quality of listening due to low crosstalk between channels, high signal-to-noise ratio and low distortion. The design includes a preamplifier with RIAA frequency correction for the possibility of direct connection of phono cartridge
Universal data storage for IoT applications
Kadlíček, Matej ; Myška, Vojtěch (referee) ; Šteffan, Pavel (advisor)
The master’s thesis is written about the topic of data warehouse and the technology associated with it. The aim of the theses was to select programming tools for creating a website. Next aim was to design the functionality, appearence and datastorage. Subsequent implementation of design was done after. Theses was divided into 5 chapters. The first one includes selections of programming tools for a creating a backend. Second chapter includes design of database storage. Third chapter includes design of functionality and user interface. Fourth chapter includes implementation of the application and the last one includes testing.
Design of a wireless communication interface with a PC for an emulation platform for modeling integrated circuits
Benc, Marek ; Janůš, Tomáš (referee) ; Šteffan, Pavel (advisor)
In the design center of Onsemi in Rožnov pod Radhoštěm, they use an emulation platform based around an FPGA for verification and debugging tasks for certain integrated circuits, and it's equipped with an interface that models an IC's configuration fuses with physical switches. For ICs with large fuse counts, working with this interface is tedious and error-prone, which has lead to this thesis investigating the possibilities for creating a wireless configuration interface that would be controlled by a PC.
Control system for air monitoring
Chlumecký, Karel ; Levek, Vladimír (referee) ; Šteffan, Pavel (advisor)
The master’s thesis focuses on the development of household device which allows the user not only to measure quality and properties of air in individual rooms but also allows graphical display of measured values via wireless transmission. The work first deals with selection of a suitable microcontroller and then the wireless communications and used peripherals are briefly described. Furthemore, the work deals with the design of the device itself, its hardware and software equipment, as well as its construction. The financial costs are also analyzed in this work. Part of the work is the final testing of the completed equipment for measuring in two rooms of a residential house.
Equipment for long-term test of BLDC controller
Řihák, Roman ; Háze, Jiří (referee) ; Šteffan, Pavel (advisor)
This diploma thesis deals with the design and realization of equipment for long-term testing of the controller of brushless DC motors. In the theoretical part are mentioned principles and explanation of the function of various types of electric motors. The diploma thesis also deals with brushless motors, how they are controlled, types, constructed, etc. At the end of the first chapter there is a mention of thermoelectric phenomena. The second chapter describes the appropriate design of equipment for long-term testing from the block diagram to the construction itself. The third chapter deals with the implementation and function of the entire test system.
LoRa Gateway
Očenášek, Matěj ; Janůš, Tomáš (referee) ; Šteffan, Pavel (advisor)
This diploma thesis deals with the implementation of two LoRaWAN systems and the creation of instructions on how to put these systems into operation. Both systems consist of a end device, an access gateway, a network and application server, and a website to display the data obtained from the end device. The public network "The Things Network" and the local network ChirpStack are used to implement these two systems.
Automated control of aquarium operation
Kejzlar, Radim ; Šteffan, Pavel (referee) ; Háze, Jiří (advisor)
This master´s thesis describes complete design and implementation of an automated system for the control of a common freshwater tropical aquarium with a keyboard and display. The thesis discusses the applicability of equipment in today's aquaristics of freshwater tropical aquariums with respect to the history and market offer. Thesis describes the complete design of the electrical, program and mechanical parts of the resulting system and electrically controllable automatic feeder, communicating with the system.

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