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Half Duplex radio modem
Urbaník, Jaroslav ; Šebela, Radek (referee) ; Prokopec, Jan (advisor)
This bachelor thesis deals with a concept description and realization of wireless system for transmission of control signal. The system is designed for a half-duplex operation mode. Various options for system realization of the task solution is mentioned and described. The work analyses the choice of particular components and their intercommunication as well. PCB and Atmega16 microcontroller software technology is also concerned about. The usage of this wireless system is universal and it is possible to adapt it for particular application.
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Laboratory task of the wireless alarm burglar system
Pokludová, Michaela ; Pust, Radim (referee) ; Burda, Karel (advisor)
The goal of the bachelor thesis is to describe the principials and the technical solutions of the basic contemporary wireless systems, which are later used during the work with panel through the laboratory task. The output of this thesis is the assignment of the laboratory task EZS for the magister scholars of VUT FEKT with the 90 minute duration. The proposed assignment consist of the desribtion of wiring and EZS panel handling. Each step of the desing of the assignment is described and practically verified.
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Aeroplane model control using ISM 433 band
Juráň, J.
The aim of this work was to design multifunctional pair of devices for wireless transmission. Next goal was to use it to create RC model from hand launch glider to demonstrate wide possibilities of the developed system.
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Digital multi-effect unit for guitar
Juráň, J.
The aim of this work was to design the multi-effect unit containing many additional features with the smallest dimensions possible. The main problems solved during the design were: signal processor programming, C language library for graphical OLED RGB display, system control using ATmega, EMC, wireless transmission of the sound, proper maintenance selection for dimension minimization, battery charging, and audio preamplifier.
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Software for Processing of Head Position Sensor Data
Slávik, Vladimír ; Sekora, Jiří (referee) ; Čížek, Martin (advisor)
The paper introduces briefly topics of retinal detachment, vitrectomy and applicable postoperative care. A system for increasing patient comfort is described, which continuously records and signalizes head tilt. The software part of aforementioned system is implemented, using C++ Builder programming environment and helper libraries supplied by system's hardware component vendors. This software application allows user to analyze recorded data and manage the system. Application's user interface and usage is described in detail, as well as implementation details concerning internal functions and organization.
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Wireless transmission of flight data for low distance
Kučera, Petr ; Maršálek, Roman (referee) ; Prokopec, Jan (advisor)
This diploma thesis deals with the flight data wireless transmission from aircraft to the ground station. This is the data sent from the acrobatic aircraft during races, specifically the GPS position and data from sensors of acceleration and rotation of the aircraft. It dealt with the theoretical analysis of the radio link and design of device that receives radio transmission. In aircraft it is dealt with data capturing and their deployment through the radio module. Data are sending to another post-processing on the ground station after receiving. There are two solutions of radio module and in the last part is a solution for capturing data from more airplanes.
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Wireless transmission interference modeling (AWGN, Rayleigh, Rice fading channels)
Hloušek, Tomáš ; Gleissner, Filip (referee) ; Mikulka, Jan (advisor)
This thesis describes and models wirelesss transmission intereferences in real communication channels. A signal received on a fading channel is subjected to a multiplicative distortion and to the usual additive noise. Real channel adds to the signal noise and fadings. Gaussian noise is a result of channel awgn. Fadings is implicated by multipath propagation of signal in Rayleigh and Rician channels. Main goal of this project is to program BERsolve, which is created in tool GUIDE in Matlab. User program BERsolve makes it possible to analyse bit error rate and symbol error rate for some types of channel models, which are defined by standard COST207. BERsolve offers some other functions i.e. display time behaviour, constellation diagram and spectrum. This program provides us with an overview representation of problem by multipath interferences in communication channels.
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Desing of measuring of electric machine rotor temperatue
Chalupa, Jan ; Krejčí, Petr (referee) ; Vlach, Radek (advisor)
This bachelor thesis is focused on temperature measurement issues of rotating parts of electrical devices. Thesis includes proposition and implementation of hardware solution, which enables multi-channel temperature measurements using PT100 sensors. Measured temperature is transmitted into the user’s PC. Thesis also includes user software solution for Windows platforms. Hardware requirements are low. System is primarily determined for temperature test of electrical devices. It can be also used for long-term monitoring of devices in operating state. Transmitter was designed with following considerations. Minimal size, low consumption, mechanical and thermal endurance. These demands require comprehensive approach to the whole system solution.
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