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Use compact control systems to control lighting by DALI protocol
Uchytil, Tomáš ; Baxant, Petr (referee) ; Škoda, Jan (advisor)
This thesis describes the system of lighting control via digital signals. In particular DALI protocol, this is used as a standard in this control. There is description of possibilities of connecting control units and a principal of communication between a load and the control unit. Also this thesis contains the conception of control via compact control systems, where is used a converter RS232/DALI.
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Influence of Change in Frequency of the Supply Current to the Operational Parameters of the Discharge Light Sources
Kuptsov, Alexander ; Škoda, Jan (referee) ; Krbal, Michal (advisor)
The master’s thesis is devoted to exploiting of gas-discharge lamps and their dependence on frequency of the supply current. The first part describes the theory of discharge, its types and properties, terms of its origin, and ways of its exploitation. The second part concerns electrical ballast systems of gas discharge light sources, inductive (reactive) and electronic ballasts, principles of their functioning, advantages and disadvantages, and the comparison of their properties. The following chapters deal with low-pressure and high-pressure gas-discharged lamps, compare their properties and describe exploitation of fluorescent lamps. Before conducting the experiment we have described the influence of frequency of the supply current on fluorescent tube lamps. Preparations for laboratory measuring have been also implemented. During the experiment the two types of lamps have been analyzed, the results of the research are summed up in the conclusion.
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Lighting systems in off-grid applications
Lengyel, Ladislav ; Škoda, Jan (referee) ; Baxant, Petr (advisor)
Aim of the master's thesis is at first to explain appropriate light sources and lighting systems; secondly present suitable light sources selection for lighting a small space and design of an off-grid system. The last part consists of an overview about alternative energy transformations to light energy. The first of these three major themes focuses on the analysis of light sources suitable for use in applications with accumulation together with data on energy efficiency and the utilization efficiency associated with them, concentrating on their consumption and possible energy saving lighting within small applications. It ends with a description and calculations of electricity energy indicators for different types of rooms. The second and main part of the thesis is focusing on suitable light sources selection for off-grid systems and impacts on humans and the environment associated with it. An object representing a small application has been created in RELUX® software with suitable light sources installed in it. For this scene, appropriate parts of off-grid systems were selected, which could be used to power the proposed lighting. The last theme consists of a brief about alternative sources, most of which are still in development or existing only at a theoretical level. All of these alternative sources are having a possible application in the future.
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Lighting and lighting systems for stand-alone applications
Čejka, Lukáš ; Škoda, Jan (referee) ; Baxant, Petr (advisor)
This bachelor's thesis deals with the issue of lighting systems for stand-alone applications. These systems are independent of the electrical connection and they are powered by batteries. Batteries are charged by independent sources. The work is more focused on an autonomous lighting system that uses a solar panel. It mentions the main components of the system. Furthermore, in this work, we can find types of stand-alone lighting applications, their possibilities, problems, advantages and disadvantages, economic balance and also outline other possible solutions.
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Design of the lighting system in the joinery workshop
Ševčík, Přemysl ; Novák, Filip (referee) ; Škoda, Jan (advisor)
The bachelor thesis deals with evaluation of current lighting system in workshop and creation a new model of lighting system. In the theoretical part, the thesis deals with lighting parameters of lighting system. Practical part is dedicated to evaluation of current lighting system that is based on performed measurement. Further the new model of lighting system is created so that the work in workshop would be pleasant and economical. An economical proposal is created for the new lighting, which is compared with the current lighting system.
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Design of a reference luminaire
Cikryt, Adam ; Baxant, Petr (referee) ; Škoda, Jan (advisor)
The master's thesis deals with the design and manufacturing of a reference luminaire for use in lighting laboratories. In the design of the luminaire, simulations in Ansys Speos are used to assess the luminaire's lighting properties. The designed luminaire is manufactured using 3D printing and assembled. The light technical properties of the luminaire are determined by measurements in lighting laboratories.
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Design of demonstration suitcase with light sources
Vojkůvka, Jan ; Baxant, Petr (referee) ; Škoda, Jan (advisor)
This bachelor thesis deals with the design and realization of a demonstration case with light sources. The work explains the basic photometric parameters, contains the measurement of the reflectivity of samples. Furthermore, the work describes the design process, process of realization of the demonstration case, selection of light sources and brightness measurements performed on the finished demonstration case.
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Design of the calibration box
Šácha, Tomáš ; Motyčka, Martin (referee) ; Škoda, Jan (advisor)
The diploma thesis deals with the description of basic photometric quantities, light sources and their parameters. The work also describes the LumiDISP luminance analyzer, for which the calibration box is designed. The next part of the diploma thesis deals with the design of the calibration box in the Inventor program and later the simulation of the calibration box in the Ansys Speos program. The simulations in Ansys Speos led to the determination of the number of light sources in the calibration box, which were then used for production. The work also describes the procedures and partial parts of the design and production of the calibration box, including its revitalization and testing.
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