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Autonomous control system for composite materials heating
Lapčák, Adam ; Levek, Vladimír (referee) ; Šteffan, Pavel (advisor)
This thesis focuses on designing an autonomous system intended for heating surfaces made of conductive composite material. The design involves smart electronics design for integration into distribution boards and the ability to control power switching elements. Emphasis is also placed on the possibility of remote system control via the internet network. For an easy deployment in any location, the autonomous system will use a mobile network. System control will be realized with a dedicated HTTP API server along with a custom user application.
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Home security system
Čada, Jan ; Burda, Karel (referee) ; Lattenberg, Ivo (advisor)
This master thesis deals with the design and implementation of a security system for a family house. It consists of a central control panel, a control keyboard and detectors connected using cables. The first part of the thesis discusses the electronic security and fire alarm systems, describing the individual elements of these systems and their different types. Magnetic contacts, fire detectors, sirens and a mains power supply with UPS function are selected from the current offer based on a comparison of parameters. In the next section, a block diagram of the whole system is designed. Raspberry Pi Pico development board with an RP2040 microcontroller is selected along with a GSM module SIM800L for SMS alarm notification and an Ethernet module with a Wiznet W5500 chip for the possibility of implementing a web interface. Schematics of the individual modules of the system are designed - for the central control panel, input module with PCF8574 circuit and two PCBs of the control keyboard module, which is equipped with a button keyboard with backlight, character LCD display type 1602 and proximity sensor VL53L0X for automatic lighting when person comes closer than a defined distance. PCBs are designed according to the schematics. Their manufacturing is then ordered, all components are mounted and the PCBs are placed in a 3D printed enclosure in the case of the control keyboard, and on the mounting plate of the metal cabinet in the case of the central control panel, according to the designed mounting plan. For the selected piezo sirens, covers are designed and 3D printed in the design of the selected Paradox NV5 motion sensors. In addition to the central control panel and the control keyboard, door and window contacts, fire detectors and sirens are installed in the house. The next part is dealing with the development of the control software for the central control panel and control keyboard in MicroPython language and the design of a custom communication protocol on the RS-485 bus for communication between the central control panel and control keyboard. Both control programs are based on the state machine principle, and their state diagrams are presented in the thesis. Part of the text is also focused on the development of the central control panel web interface and integration of the desinged system into the Home Assistant open-source automation system. The last part describes the activation and testing of the system in real conditions of a family house.
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GSM-R radio network design at the railroad including base station connectivity
Řehák, Martin ; Miloš, Jiří (referee) ; Slanina, Martin (advisor)
This diploma thesis deals with the design of the radio network for the track section Břeclav-Znojmo. Firstly, the theoretical knowledge about GSM-R, Radiolab and radio relay is described. The next part deals with the measurement of the already covered section of the track and the selection of a suitable propagation model. Radiolab is designed to cover several diffusion models. The model used for the final design of the network is chosen based on the comparison of the measurement results with the proposed coverage in Radiolab. The last part describes the provision of connectivity to individual base stations. Several connectivity options are compared.
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Home security system
Martínek, Marek ; Dosoudilová, Monika (referee) ; Zuth, Daniel (advisor)
The introductory chapters of this work are dedicated to types of object protection, describe the elements of the security systems and the types of sensors that are present in the security systems. The next chapters deal with detectors of other hazards rather than crime and deal with the problem of signal transmission. At the end of the thesis, security system for house or apartment is solved, based on open-source solution in development environment ARMmbed.
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A System for Monitoring Vehicle Fuel Consumption
Lazárek, Zbyněk ; Kolář, Dušan (referee) ; Burget, Radek (advisor)
The aim of this thesis is to create a system that can detect fuel theft from vehicles. The systemconsists of a hardware device located in the monitored vehicles and information systemthat makes it possible to determine when and where the theft occurred. The thesis describesthe components of the hardware device and individual functionalities of the informationsystem.
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Implementing of GSM modem in PBX Asterisk
Benýšek, Jiří ; Krajsa, Ondřej (referee) ; Šilhavý, Pavel (advisor)
Short Message Service (shortly SMS) is the most widely used type of communication systems. The main advantages are that allow a fast exchange of messages between devices, a very good availability through GSM and a reasonable price. Nowadays the SMS service support has expanded to include other technologies such as a service of the information navigation and the remote connection. The master‘s thesis concentrates on the Short Message Service, deals with basic principles and statements using by this service. The topic of the thesis is software PBX Asterisk and its possibility of SMS implementation, especially verification of SMS processing goes through the PSTN. After the basic introduction the master‘s work deals with the installation and configuration of the server. The main focus is on an installation of the operating system with an additional pack including necessary libraries and modules for a correct working of the server. The following section is paying attention to the Asterisk server configuration, especially a hardware card installation which is necessary for a connection with analog telephones, done by Bluetooth connections, set up user’s profiles of the SIP protocol and create a dial plan. This is followed by a verification of SMS option of the implementation and communication with GSM modem which is used as a gate for an exchange SMS between PSTN and GSM network. The last chapter of this master‘s thesis comes with the aimed results.
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Low-power tracking device for motorcycles
Gryžboň, Jan ; Krajsa, Ondřej (referee) ; Kouřil, Jiří (advisor)
This bacheleor´s thesis describes the design of low power tracking devices, which should be used primarily for motorcycles. The objective is realization of the equipment to be controlled by a microcontroller, which will receive location information from GPS / GSM modules from SIMCOM. The resulting tracking devices will be able to send an SMS message with date, time and GPS location of the stolen motorcycle.
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Hybrid module for industrial localization
Sedláček, Petr ; Fuchs, Michal (referee) ; Kubíček, Michal (advisor)
Tato diplomová práce si klade za cíl návrh hybridního lokalizačního zařízení, které je schopno lokalizace uvnitř i vně budov. Lokalizace uvnitř budov je dosažena pomocí technologie Ultra Wideband a venkovní lokalizace je provedena pomocí kombinace technologie RTK GNSS a PPP pomocí open - source softwaru zvaného RTKLIB. První část textu se zaměřuje na vysvětlení používaných technologií a výběr nejpřesnější technologie pro venkovní lokalizaci. Druhá část se zaměřuje ma vývoj potřebného hardware a software finálního zařízení a na integraci systému pro venkovní lokalizaci do systému pro lokalizaci vnitřní. Výstupem práce je plně funkční zařízení, které je schopné plynulé lokalizace uvnitř i vně budov. Funčnost celého zařízení je dokázána na finálních testech uskutečněných ve vnitřních i venkovních prostorách. Na závěr také práce zmiňuje možná vylepšení celého zařízení, která mohou být v budoucnu provedena.
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Antennas for GSM bands
Rousek, Jiří ; Pokorný, Michal (referee) ; Pítra, Kamil (advisor)
Bachelor thesis deals with miniaturization techniques of the planar inverted-F antenna (PIFA). In bachelor thesis were simulated antennas for the GSM bands using meandering of the radiating patch, capacitive load and U-slolts. Influence of parameters of each miniaturization techniques on the antenna size and parameters were studied. The process of designing the antennas is described in detail. Selected models of antennas were adapted to given dielectric substrate and constructed. The measured results are presented and compared with simulations.
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