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Data collection by wireless technology ZigBee
Teplan, Miroslav ; Burget, Radim (referee) ; Koutný, Martin (advisor)
This bachelor study deals with communication standard IEEE 802.15.4, wireless technology ZigBee and describes its using in collective data collection area and telemetry. Teoretical part is formed by some chapters which detailing standard IEEE 802.15.4 and ZigBee technology and some chapters which detailing communication unit design from look peripheral solving and implementation firmware. Practical part have to do with itself realization communication unit for data gathering from measuring devices. It is based on circumscribed solving. Further smoothing - out proposal frame system in which the would be used technology ZigBee.
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FM Transmitter of APRS Telemetry in 435 MHz Band
Klíma, Martin ; Špaček, Jiří (referee) ; Urbanec, Tomáš (advisor)
FM transmitter APRS of telemetric data is device able to measure telemetric values from its ambient. It is able to send this data to user on earth by radio frequency channel. This device can create data frames, with proper formatting allowing sending data. It operates in 435 MHz band, uses FSK and AFSK modulation. This work describes basic information of used protocols, electronic connection of this transmitter and software equipment.
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Optimisation of gear ratio for racing cars
Bém, Pavel ; Roupec, Jakub (referee) ; Mazůrek, Ivan (advisor)
Pavel BÉM Optimisation of Gear Ratio for Race Cars DW, IAE, 2008, pp. 62, fig. 69. At first I labellig problems about gearboxes than, I review dataloggers for racing cars using now. I create model of dynamic simulating car move during at akcelerating and decelerating on choice track. I create program analyzating data from telemetry and applicated dynamic model to optimisation gears ratio.
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Wireles Flying Object Telemetry
Bednář, Martin ; Šimek, Václav (referee) ; Růžička, Richard (advisor)
This paper is engaged in specification, design and implementation of a telemetry module for flying object. Specifically, it focuses on the selection of the appropriate carrier frequency of the integrated circuit providing bidirectional communication to a sufficient distance and design of the protocol used in the transmission. Furthermore, the document focuses on the design of communication modules using these integrated circuits, altimeter sensor module, module to control the actuators and design of the application for mobile phones used to display the measured data. With regard to legislative and technical options, I chose a carrier frequency of 2.4 GHz. For this frequency is commercially available integrated circuit CC2511, which in cooperation with integrated circuit CC2591 should be able to provide telemetry range about 2 km. I chose BMP085 sensor for altitude measuring. It is communicating over I2C bus as well as a module for controlling the actuator, which uses a microcontroller ATMEGA48-20AU. The mobile phone communicates with the ground station via the USB bus.
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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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Monitoring system for model airplane
Belloň, Michal ; Dřínovský, Jiří (referee) ; Růžek, Václav (advisor)
This projekt is focused on wireless transfer of informations from air model to modeller during the flight. These informations will be displayed on LCD placed near controller of model. Project includes theoretical design of device, choosing suitable components, circuit diagram, PCB and photos of realized device.
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Technology of Receiving of Very Weak Signals from Interplanetary Spacecrafts
Špaček, Jiří ; Bezoušek, Pavel (referee) ; Kovář, Pavel (referee) ; Kasal, Miroslav (advisor)
The work deals with the problematics of receiving very weak radio signals and it is focused especially on systems for low rate telemetry with carrier-subcarrier modulation. The part of this work is dedicated to calculation the link budget of typicall telemetry data transmission system between the Mars and the Earth in respect of the receiving equipment, which could be developed in the Experimental sattelites laboratory on the Institute of radio electronics BUT. The main part of this work is dedicated to developing and testing the low rate telemetry data transmission system model. The model is developed for the purpose of study the effects of AWGN and phase noise on the whole system and also on its component parts. The model has been developed and described in the way of easy parameters modification. The design for each parameter of the model is described carefully. With the developed model, the study of the effects of AWGN and phase noise on the whole system and also on its component parts has been performed.
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Satellite Telemetry Archive
Vorálek, Jan ; Povalač, Aleš (referee) ; Urbanec, Tomáš (advisor)
This thesis deals with a design of telemetry archive of PSAT, PSAT-2 and BRICSat sattelites. This telemetry data need to be extracted from SDR IQ records. The thesis contains a Doppler effect theory and description of structure of telemetry data. Then it presents a design of a program for Doppler effect correction, demodulation and decoding of these records and saving the data to telemetry archive. Thesis also deals with analysis of decoded data.
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