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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Tenký měřič plošného teplotního rozdělení s maticí negastorů / Thin device for the real temperature distribution measurement with the negastore matrix

Martinásek, Zdeněk January 2008 (has links)
The main task of the Master Thesis is to project a device to measure surface temperature distribution by matrix of diodes. The maeasuring device is designed for usage at places where other thermal map scanning measuring methods (e.g. thermocamera) can not be used. The key objective was to design an appropriate measuring method for selected type of sensor. This method should ensure the most effective detection of the changing value, translate received values to the digital form and send it to the computer. All circuits were powered over USB (Universal Serial Bus) together with the signalling. Calibration was needed due to different sensors technical parameters. The calibration was realized on the software level and displayed with the thermal map scanning on the computer. The final project has the form of the measuring installation with 256 sensors on 8x8 cm area.
92

Domácí meteorologická stanice / Meteo weather station

Dvořák, Jiří January 2010 (has links)
The aim of this master‘s thesis is design and construction of home meteo weather station, the choice of applicable temperature, humidity and pressure sensors and characterization of workable device of station. The core of the station is microcontroller ATmega8 used for process data from sensors. Evaluative criteria for choice of sensors will be comunicate interface, accuracy, operating range, current drain and other aspects. Outer transmittin unit measure air temperature and relative humidity. These data are trasmitted by wireless radio module to interior receiving unit, that measure interior temperature and atmospherical pressure and represent measured data to LCD display including dew point. The data are transmitting to the internet and storing in the database. Measured values are available on the web page where you can display the graphs of last measured values.
93

Nezávislý datalogger s USB připojením / Autonomous USB datalogger

Románek, Karel January 2010 (has links)
This thesis treats concept of autonomous temperature, relative humidity and pressure USB datalogger. Also there is explained datalogger function, hardware design with respect on device consumption and design of chassis. Furthermore, there is described communication protocol for control and reading out data by the PC. Furthermore, there are described firmware drivers for some used components and modules for USB communication, RTC and data compression. Lastly there is described software which is used for datalogger configuration and data read out.
94

Elektronický měřič teploty a vlhkosti / Electronic thermometer and humidity meter

Lapáček, Petr January 2011 (has links)
This master´s thesis deals with the design of measuring station used for the temperature and humidity measurement. There is a theoretical basical description of sensores for temperature and humidity measurement in the first part. Furthermore I deal with a theoretical design of measuring system, especially with types of materials and possibilities of communication between these parts. The main part of thesis is about communication on buses I2C,UART, SPI, RS485. There is a description of function procedure of particular integrated circuit, moduluses which are used in task in the next part of thesis.In the practical part I was engaged in a functional design of autonomous system for the temperature and ralative humidity measurement. Data could be presented by the computer after connection with the station. There is a description of testing the particular circuits and the full description of function particular blocks of system in the task. I have used the program called Eagle for schemes and printed wirings designing. The copy is placed on CD ready for next using. In the last part of thesis is a brief description of program algorithm "Meteostanice", which I have created for data presentation. There is an illustration of measuring results in these last part. The task is completely ready for the realization of autonomous system of weather station with its own memory.
95

Využití termovize při detekci defektních panelů ve fotovoltaických systémech / Usage of thermovision for detection of defected modules in solar system

Strnadel, Jan January 2012 (has links)
This thesis deals with using thermography to detect defect of photovoltaic panels.There is research of the effect of climatic conditions to photovoltaic panel temperature. At the end of the thesis is degradation of pv panels calculated.
96

Řidicí systém domácnosti / Building control system

Nekula, Vít January 2012 (has links)
The thesis is about designing a house control system which works as decentralized device. Initially, a brief market research in field of intelligent electro installation was made. On the basis of gained knowledge the whole concept of the system was designed – a control unit, a weather station and a temperature control unit. Each part communicates with each other wirelessly. A complete electronic design of circuit boards is a part of the thesis. The board were afterwards produced and assembled. Then a communication protocol and a complete implementation of all system functions were made. Next part of the thesis is a design and a programming of a web interface which is used to control the entire system. The final part of the thesis is about measuring a quality of communication between single units.
97

Řízení a vizualizace provozních veličin fytotronových komor / Controlling and visualization of operational parameters of growth chambers

Baudyš, Adam January 2013 (has links)
In the thesis I outlined principles and ways of physical values regulation with the goal of the most efficient cultivation of the plants. Pursuant to identified facts I chose and programmed way of growth cabinet control in PLC AMiNi2DS. To access relevant data and possibilities of adjustment I also created SCADA and HMI. In conclusion I created manual for operating the device and software for acquainted people.
98

Metody pro zpracování termovizních snímků s detekcí stanovené oblasti obličeje / Methods for infrared thermography with detection of specific facial areas

Kolářová, Dana January 2014 (has links)
This paper deals with non-contact measurement of temperature in human faces. Principle of measurement of infrared radiation and construction of the thermal imager is described in a literature search. The main part of the paper is design of an algorithm for automatic processing and the detection of regions of interest in thermal images. The theoretical description of used methods is also included in this paper. The aim is to design and implement a program for automatic evaluation of temperature changes in a human face in a sequence of thermal images that were taken with short time delay. As a part of thesis is description of implementation of designed algorithm in programming enviroment MATLAB and the description of the user interface. The program was tested on the experimental data samples. Obtained results and possible limitations are also discused in this paper.
99

Modelování tepelných procesů letecké elektroniky a problematika jejího chlazení / Thermal phenomena modeling of air electronic unit

Ančík, Zdeněk January 2010 (has links)
This thesis is focus on thermal analysis of aircraft electronic devices and their cooling possibilities. The two analytic methods of thermal analysis are applied on two particular technical objects. The laboratory experiment of non-contact temperature measurement method is applied on real unit. The results of simulation are compared with results of experiment.
100

Měřicí a regulační systém vzduchového zemního výměníku tepla / Measurement and control system of an air-ground heat exchanger

Bielik, Jan January 2015 (has links)
Diploma thesis deals with design of measurement and control system of an air-ground heat exchanger, which is placed in area of FME BUT in Brno. System is built in development environment LabVIEW and it is using modules CompactDAQ from National Instrument. Developed system managed trial operation, during which was designed additional changes of measurement equipment for determine another magnitudes, which help us with future evaluation of benefit of air-ground heating exchanger. It was designed some operational modes, which solve different ways of control air-ground heat exchanger.

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