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System for Autonomous Data Collection from Weighting Sensors
Lučanský, Adam ; Strnadel, Josef (referee) ; Šimek, Václav (advisor)
Cílem bakalářske práce je navrhnout a vytvořit potřebnou elektroniku s plastovým pouzdrem, webovým rozhranim pro nízkonákladové bezdrátové měření váhy včelích úlu. Sledovaním váhy úlu je možné dlohodobě sledovat zdraví včelstva. V první časti práce je vysvětlen obecný koncept měření váhy, potřebná elektronika a způsob bezdrátové komunikace. Následně je detailně popsán předložený návrh včetně firmwaru. V závěru se pojednáva o dosažených výsledcích práce a možnosti vylepšení. První vyrobena jednotka je darována lokálnimu včelaři.
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The utilization of wireless modules for data acquisition
Machů, Petr ; Mácha, Tomáš (referee) ; Martinásek, Zdeněk (advisor)
In the bachelor‘s thesis I deal with modern methods of wireless data transmission in decentralized wastewater treatment. I suggested three different architectures and various types of wireless modems related to them. Then I design the experimental workplace with the convenient architecture for an autonomous network. For data collection I use PLC (Programmable Logic Controller) Foxtrot series with the central unit of CP-1005 and I use two modems Conel CDL 800 operating in the unlicensed band 869 MHz for wireless transfer. In the Mosaic I design a program for reading inputs from wastewater treatment plant and maintenance of serial channel, in Radwin program I configure wireless modems for the point-point transfer. I present Hyperterminal configuration and delivered date are displayed in it. Finally, I design applications in PHP language that converts data into a graphic form. In conclusion, I present opportunities for further development and improvement of the network.
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Miniature Tracking Device
Šťáva, Radek ; Levek, Vladimír (referee) ; Macháň, Ladislav (advisor)
The main theme of this masters's thesis is to design and make a miniature universal tracking device. This device is primarily for tracking asset, pets or people. For detecting the position data is used GPS technology. Data transmission is carried out via the GSM network. The device is technically solved and realized with respect to miniature size, high battery life and with regard to resistance against water, dust and impact damage. It is selected unique design, suitable for hermeticaly closure of the entire facility. Due to hermetic closure there is any buttons, any connectors and the battery charging is wireless.
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Modelling and simulation of communication system receiver for unmanned aircraft
Hoferek, Jakub ; Prokeš, Aleš (referee) ; Maršálek, Roman (advisor)
This diploma thesis deals with the simulation of the radio communication system for satellite control of unmanned aircraft, namely the command and control communication link – the forward link. The aim of the thesis is to create a simulator in the Matlab environment. The simulator includes a model of the transmitter, radio channel and receiver. Four-state CPM modulation with partial response and filtered symbol shape is used. The radio channel performs noise, frequency Doppler shift and time delay to the received signal. Subsequently, in the Acquisition Unit, the Doppler shift and time delay are detected and compensated. At the end of the thesis, the simulation results of the presented model are presented in the form of graphs đť¸s/đť‘0.
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Sport robot
Slovák, Tomáš ; Šteffan, Pavel (referee) ; Háze, Jiří (advisor)
This bachelor thesis is focused on design and manufacture of two legged walking robot, that has 3D printed parts and is battery powered with the option to be remotely controlled.
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Microelectronic Wireless Networks for Telemetry and Buildings Automation
Šulc, Vladimír ; Sýkora, Jiří (referee) ; Zeman, Václav (referee) ; Kuchta, Radek (advisor)
The thesis deals with a microelectronic wireless networks for telemetry and building automation in terms of energy consumption related to the communication in wireless networks. Assumption, mesh topology is optimal topology for wireless networks for telemetry and building automation, was proven and relation between energy consumption and devices management was shown and functional abstraction related to the energy consumption was described. Several advanced techniques and solutions on physical and network layers were proposed to increase network reliability and decrease power consumption. Proposed techniques can be easily implemented.
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Cableless optical transmission
Němec, David ; Dostál, Otto (referee) ; Filka, Miloslav (advisor)
This diploma thesis first handles the general issues concerning free space optics in the atmosphere, which will then discuss the components and adjustments modification RONJA in laboratory. The aim is to simplify the control of laboratory FSO with programming compensation for HyperTerminal and provide external simulation influences on the FSO measurements in non-standard situations such as fog. It was created RONJA terminal with just cursor control to communicate with the serial port, ping, and FTP protocol. In the last part of this work were measured by an abnormal situation on the optical link RONJA.
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The monitoring system for smart concrete construction condition
Brouček, Jan ; Šteffan, Pavel (referee) ; Macháň, Ladislav (advisor)
This thesis describes designing of a wireless system which allows to transmit measured data of sensors made of smart concrete. Measured data are transmitted from measuring points to the collecting unit, which stores them, and pass them to the server which is connected in the Internet network. The design of the system is focused to achieve low power consumption of all used components to provide the longest possible operation time, when using primary lithium cell. The design should be also able to provide possibility of easy modification of the measuring points.
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Altitude meter for RC models
Beneš, Jan ; Frýza, Tomáš (referee) ; Prokopec, Jan (advisor)
Altimeter measures atmospheric air pressure and counts actual model altitude from it. Then sends data to ground module, which shows them on display. Ground module contains USB interface for connecting to PC. It enables upload of flight data and opportunity to show them in graphical representation.
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Wireless Remote Controller for Linear Repeater
Veselý, Tomáš ; Šebesta, Jiří (referee) ; Rumánek, Jaroslav (advisor)
The project deals with the problems of the wireless remote control of the linear repeater. The implementation is devided into two function parts. The first part is a network focusing on the input of instructions by the user, processing of the information, displaying the actual setting and sending the information on the given instructions. The second part deals with processing of the given information from the first part and its discharging. Both parts are controlled by the microprocessors.
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