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Multispectral Map Building in Mobile Robotics
Burian, František ; Mazal,, Jan (referee) ; Zemčík, Pavel (referee) ; Žalud, Luděk (advisor)
The dissertation deals with utilisation of multispectral optical measurement for data fusion that may be used for visual telepresence and indoor/outdoor mapping by heterogeneous mobile robotic system. Optical proximity sensors, thermal imagers, and tricolour cameras are used for the fusion. The described algorithms are optimised to work in real-time and implemented on CASSANDRA robotic system made by our robotic research group.
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Workstation with termo camera
Zeman, Martin ; Horák, Karel (referee) ; Richter, Miloslav (advisor)
This thesis contains an overview of physical principles concerning thermography and infra-red sensing, and a specification of a measuring instrument in a measurement system. Next, there are some particular examples of IR sensing applications. In the second part there is a thermal camera market research including individual manufacturers and models with their attributes and prices. There is a closer view of the thermal camera used for this thesis (Guide EasIR-4). In the end of the thesis there are some drafts of computer vision subject tasks (or practices), including workplace designs and solutions, and three task suggestions for bachelor or diploma theses including solution verifications.
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The use of thermovision technology in output control of power supplies
Rejžek, Jan ; Slaný, Martin (referee) ; Polzer, Aleš (advisor)
The aim of the thesis is to clarify the issue of non-contact surface temperature measurement with a focus on the thermal imaging cameras as a modern representative of pyrometers and thermovision technology used in the output control of power supply. To obtain the corresponding results of temperature control, it is necessary to know the exact values of emissivity of the measured materials. The experimental part of this thesis is focused on detection of emissivity of power supply parts.
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Vibration and Acoustic Emission Reduction of Powertrains using Virtual Engine
Svída, David ; Kovář, Rudolf (referee) ; Dundálek, Radim (referee) ; Kovář, Rudolf (referee) ; Dundálek, Radim (referee) ; Píštěk, Václav (advisor)
Doctoral thesis deals with combustion engine cranktrain vibrations and vibration analysis methods. The work applies new computational models aimed at powertrain vibration decrease. The computational models can be used in the first stages of powertrain development. Temperature dependences of the rubber shear modulus and loss factor characteristic are found by response analysis of the free damped vibrations in the first part of the thesis. Viscoelastic model parameters of two dampers with different rubber hardness are calculated using optimization methods. Temperature distribution inside the rubber part during the harmonic oscillation is calculated with the knowledge of previous values. Computational models together with a user interface are assembled in Matlab/Simulink software tool. Computational model results of the viscoelastic rubber damper are verified by measurements on a prototype diesel engine in the whole operating engine speed range. Torsional vibrations of the crankshaft with torsional damper are measured by POLYTEC laser rotational tools. The temperature distribution on the damper surface is obtained by Infratec VarioCAM thermographic system. Combustion pressures in the cylinder are measured by SMETEC Combi indication tools. Both the temperature distributions and combustion pressures are used for computational purposes. All the measurement procedures are described also in the thesis.
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Contactless measurement of surface temperatures when machining
Šťáva, Radek ; Sliwková, Petra (referee) ; Polzer, Aleš (advisor)
Contactless measuring of surface temperature integration in the other measurement methods and their assimilation at evaluation of surface temperature of a semi-finished product bored by various tools is the target of the work. An impassable opening is being bored by these tools. The opening is close to a scanned wall. The semi-finished wall temperatures are being scanned by thermocamera and subsequently compared for every single used tool in this experiment.
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Contactless measurement of surface temperatures during milling
Kmenta, Michal ; Slaný, Martin (referee) ; Polzer, Aleš (advisor)
This Master's theses deals with the contactless measurement of surface temperatures and incorporates it among other methods of temperature measurement. For practical experiments were used infrared camera ThermaCAM SC 2000 from producer FLIR. The experiment was focused on the area of manufacturing technology – milling. Have been investigated effects of different cutting conditions on the surface temperature of the machined sample and the results are expressed mainly in the charts.
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Application of IR imaginery in electrical engineering
Strmeň, Milan ; Valenta, Jiří (referee) ; Aubrecht, Vladimír (advisor)
This work deals with contactless measurement of a temperature, its principles and types. Above all, it is aimed mainly on thermovision. Infrared camera SH-68 / HY-6800 is presented and its functions are described. Brief instruction manual together with important information on a measurement is also presented. An example of a simple measurement, which is itemized to several steps, is worked up in the framework of the project. The last part of the project is devoted to the thermovision applications in a general practice. Temperature rise of a part of high voltage diconnector was measured by IR camera and compared to the contact method of the temperature measurement.
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PID Analysis of Photovoltaic Power Plants in Czech Republic
Hamr, Tomáš ; Strachala, Dávid (referee) ; Hylský, Josef (advisor)
This Bachelor´s Work summarizes basic knowledge about construction technology of solution of photovoltaic equipment. solution which suffers from degradation by influence of potential. There are described possible restriction solutions of potential induced degradation which takes effect at the level of FV system, FV modul and FV cell. The work contains diagnostics of photovoltaic power station using thermovision measuring and U/I analysis with following assessment of a problem. Futhermore, the cooperation will continue with companies NWT and Sunfin where possible futher measurement with analysis will take place and data analysis from solar power stations.
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Engine Motormanagement Software
Kopecký, Ivo ; Vítek, Ondřej (referee) ; Hájek, Vítězslav (advisor)
Fuel injection is a means of metering fuel into an internal combustion engine. In modern automotive applications, fuel metering is one of several functions performed by an "engine management system". A fuel injection system is designed and calibrated specifically for the type(s) of fuel it will handle: gasoline (petrol), Autogas LPG (also known as propane), ethanol, methanol, methane (natural gas), hydrogen or diesel. The majority of fuel injection systems are for gasoline or diesel applications. With the advent of electronic fuel injection, the diesel and gasoline hardware has become quite similar. During the last twenty years a preparation of a fuel mixture and the way of ignition in engine segment have changed the most. Instead of a carburettor it is being used the unit, which prepare fuel mixture according to a status of a car on the road e.g. change of pressure, temperature or ratio of a fuel and air.
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Building for library purposes
Pastorková, Gabriela ; Blasinski, Petr (referee) ; Horák, Petr (advisor)
The aim of the Master’s thesis is to design near-zero energy library building in Kroměříž. The thesis is divided into three parts. The first part includes the architectural and structural design of the library. The building has two storeys. The first floor contains a lecture hall, a library, and technical facilities. The second floor contains another section of the library with a study space and facilities for employees, both floors are equipped with sanitary facilities. An accessible sanitary facility is located on the first floor. The building is founded on foundation strips supporting the load-bearing wall system made of ceramic blocks and a pre-stressed concrete roof and floor structure. The roof is designed as an extensive green roof, the roof over the entrance area is a warm flat roof. In the second part, I focus on designing selected building services. Key components include air-water heat pumps for heating and cooling, mechanical ventilation with heat recovery, LED-based lighting technology, and photovoltaic panels. The heating is provided by a hot water underfloor system, and rainwater management concept is designed as well. The building is assessed in terms of daylighting, acoustics, and thermal technology, including an Energy Performance Certificate. The third part of the thesis focuses on using thermography to identify potential thermal bridges. This section also encompasses the preparation of cost estimates for various insulation options, aiming to determine the optimal insulation solution for libraries that have been surveyed using a thermal camera. The analysis is focused on identifying a more cost-effective solution that provides optimal thermal insulation and minimizes construction costs. The thesis is created using ArchiCAD, BuildingDesign, Microsoft Office and Lumion software, along with the web portal DEKSOFT.
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