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Electronic business card/price tag with wireless communication
Sirůček, Václav ; Sýkora, Tomáš (referee) ; Bradáč, Zdeněk (advisor)
The Bachelor thesis deals with the design of an electronic business card, a portable imaging device that will display data about the wearer (name, surname, phone number and email). Claims are for long-term battery life and remote display of data on an electronic ink display. At work there is a solution for powering the product with a display and its wireless communication with the computer or phone. It also deals with battery status displays, display updates, circuit schematics, electronic business card case design and final realization.
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Temperature and humidity monitoring devices with wirelless communication
Hrbáček, Zdeněk ; Arm, Jakub (referee) ; Bradáč, Zdeněk (advisor)
The purpose of this work is to design and implement a device for collecting temperature and humidity from bee hive. The system consists of a measuring unit that contains digital sensors and actuators.The system transmits the measured values wirelessly to the parent unit, which displays the data in a suitable format to the user. The user can monitor the hive parameters and use the actuators to adjust the temperature inside the hive. The whole system then operates autonomously according to defined rules.
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Identification and Decoding of Wireless Communication Using SDR
Matulka, Filip ; Bidlo, Michal (referee) ; Vašíček, Zdeněk (advisor)
The goal of this thesis is to create the system that uses concept of software defined radio. This system is capable of automatically identifying the communication parameteres and subsequent decoding of wireless communication. The thesis focus on the wireless system operationg in unlicened frequency band and cosidering fundamental modulation metods. The result is tested on two independent wireless systems that verify ability to automatically identify the communication parameters.
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Vision system implementation on Bioloid robot
Ropog, József ; Marada, Tomáš (referee) ; Věchet, Stanislav (advisor)
Tato bakalářská práce se zabývá implementací systému vidění na dvounohý humanoid robot ze stavebnice Bioloid. Systém vidění je složen z bezdrátové kamery, která je namontovaná na robotovi a z řídícího počítače. Cílem této práce bylo zkonstruovat a oživit humanoidního robota, vytvořit systém vidění a bezdrátový komunikační systém. V centru je robot, který pomocí bezdrátové komunikace současně odesílá i přijímá údaje. Tento systém nabízí skvělé schopnosti na další rozšíření.
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Automated garden system for outdoors
Stupka, Tomáš ; Povalač, Aleš (referee) ; Frýza, Tomáš (advisor)
The aim of this semester work is to design and implement an automated irrigation system for use in a family house based on the Raspberry Pi platform and AVR processors with the possibility of automatic adaptation to outdoor temperature and humidity conditions. The design also includes a web interface using the NodeRED interface for manual control and monitoring of data collected from individual wireless sensor modules
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Indoor optical wireless link design
Kaňa, Leoš ; Tošovský, Petr (referee) ; Hudcová, Lucie (advisor)
In last years phenomena of wireless communication technologies became a primary interest of big development laboratories whole world. Domain of point to point links which are realized by laser technology with narrow beam divergence and very sensitive photo-detectors is ordinarily used these days. This trend of using light waves as carrier medium turned interests of scientist to the sphere of wide area networks which is domain of wi-fi radio technologies. One of new trends in this sphere is also in-door free space optics. With expansion which leads to using LED's in everyday applications and with technological progress of last years, also grows tendency of most effective utilization of LED systems. The result of this effort is thought which considerate LED as source of artificial lighting and source of carrier medium for modulated signal. This kind of device must fulfill hygienic standards for illumination and also must be able to work with high frequency by which is signal modulated. These systems can provide links with sufficient capacity in order of hundred megabits.
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Security system for family house
Sohr, Martin ; Macháň, Ladislav (referee) ; Jaroš, David (advisor)
This thesis deals with complete theoretical design of security system for a family house, from the selection of technologies, security principles and selection of elements, theoretical suggestions of their placement to practical realization. I this thesis, securing of entry points, such as doors and windows, is done by magnetic contact sensors. Windows are secured also against breaking of glass. Inner space is secured using motion sensors. Further, the function principle of optical latches as secondary securing element of inner space is explained. The designed security system implements a central control unit, which is able to provide status information on all security elements to the host system. IQRF wireless communication operationg in licence-free is used for communication among elements of the security system. GSM SIM9000 module is used for communication with the security system.
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Design of the wireless sensor and communication network
Ptáček, Zdeněk ; Šteffan, Pavel (referee) ; Pavlík, Michal (advisor)
The thesis deals with the study of the existing wireless network types, propose and realisation of a dedicated wireless network based on using nRF24L01+ wireless module. The aim is to design a simple, reliable and multifunctional low-cost wireless network. The cellular tree topology and random retransmission delay are used to eliminate cross-talks. Low propagation time is achieved by using ALOHA Access Protocol. Network units cooperate with peripherals in order to measure temperature, humidity, illumination level and other. The power down mode is used to increase duration of battery powered network unit. Practical part of the thesis is focused on creating a computer program to control and set up the network. The network provides a central or autonomous mode.
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Advanced Weather Station with Image Transmission
Augustin, Stanislav ; Fedra, Zbyněk (referee) ; Povalač, Aleš (advisor)
The content of this diploma thesis is a hardware and software design of advanced weather station with image transmission. The meteostation consist of two units - outdoor and indoor unit. Outdoor unit provide processing measured values from temperature sensor, atmospheric pressure sensors, rain gauge and windmeter. It also provides processing of captured image and wireless transmission of measured values to indoor unit. Indoor unit should provide comfortable meteostation controlling and visualization of weather situation by web interface.
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Optimization of Wireless Networks against Attacks
Řezníček, Martin ; Pust, Radim (referee) ; Škorpil, Vladislav (advisor)
The work describes the design of wireless networks and the problems relating to this technology. In the theoretical part it deals with the learning network, the security technology and design wireless network. In the practical part it describes the simulation and measure of the signal strength. The ensuring of the safety by aid WPA as well as Radius authentication, TKIP data encryption, and the possibility of breaking into the network. The following chapters deal with the connection of the users to the network (domain) and with the application of VOIP telephony on the network. The last part describes the extension of the network and the associated problems.
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