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Analyse of photovoltaic solar cells by the photoluminescence method
Baura, Tomáš ; Bača, Petr (referee) ; Vaněk, Jiří (advisor)
This thesis deals with the analysis of solar cells by photoluminescence method. Photoluminescence method is based on the excitation of luminescence radiation of the solar cell material by an external excitation light source. This method can detect various types of defects in the material solar cells. The main objective is the design and realization of a measuring system defects of solar cells, which is based on this method. For excitation of luminescence is used LED array. For the detection of luminescence is used CCD camera with IR optical filter. To filter out the excitation light radiation is used disc screen and optical interrupter. The parameters and options of this measuring system are verified and characterized by test measuring for example the achievable rotation speed of screen and response of optical interrupter. At the end is tested detection of luminescence radiation of solar cells in the measuring system. The measured images are compared with the method of electroluminescence.
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Automatic people counting
Szalbot, Michal ; Mišurec, Jiří (referee) ; Koutný, Martin (advisor)
The main subject of this bachelor thesis is utilization of optical sensors for people vehicle counting. This types of sensors were selected - optical barrier, passive infrared sensor, active reflective sensor and ultrasonic sensor for people vehicle counting. The tasks and used sensors are described in introduction. The selected applications available on the market and description of their function are described there too. The solution describes individual type of sensors, their function, used involvement in tests and tests results. The conclusion contains summary of knowledge of sensors, their possibilities and other possible solutions.
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Development of a system for measuring the motor skills of small animals
Ryšavá, Michaela ; Götthans, Jakub (referee) ; Frýza, Tomáš (advisor)
The main objective of the project was to explore methods of motion measuring using sensors, select a suitable method, create a system and a application for measuring the speed of small animals. It is a dedicated project to measure a research in coperation with Masaryk university, which aimed to explore the the mobility of lizards living in the Czech Republic. In particular, commercial systems provide a solution by analyzing camera data. For the desired speed measurement of various shapes, the implementation of image processing is cost-ineffective and more complicated than using electronic sensor solutions. The most appropriate solution an infrared optical gate appears, due to constant results accuracy when changing the colors and sizes of measured individuals, small size and relatively easy implementation. Furthermore, a straight track and an electronic system using the selected optical gate concept has been constructed and implemented software for control and evaluating the entire measurement.
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Design and realization of photodetector using Arduino platform
Vrána, Milan ; Háze, Jiří (referee) ; Veverka, David (advisor)
Arduino, Arduino Nano, Processing, photodetector, optical gate, communication, UART, I2C, interrupt, timer, application, temp measurement, humidity measurement, electroscope, 3D print
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Electronic timekeeping with movement detection
Paulus, Luboš ; Brož, Vladimír (referee) ; Klusáček, Stanislav (advisor)
Agility is a competition for dogs and their whipper. The score is made from numbers of errors which dog made and also time in which the dog overcomes crimps decides. Start and finish are detected by the reflective optical spar with logical NPN output. Spar havs to detect only dog in set position in recruit. This signal is processed by a micro – controller, which processes data, more precisely time with accuracy on tenths, sends data on the superior PC.The communication of micro-controller and PC is possible only through USB, RS 232 or wireless RS 232.
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Development of a system for measuring the motor skills of small animals
Ryšavá, Michaela ; Götthans, Jakub (referee) ; Frýza, Tomáš (advisor)
The main objective of the project was to explore methods of motion measuring using sensors, select a suitable method, create a system and a application for measuring the speed of small animals. It is a dedicated project to measure a research in coperation with Masaryk university, which aimed to explore the the mobility of lizards living in the Czech Republic. In particular, commercial systems provide a solution by analyzing camera data. For the desired speed measurement of various shapes, the implementation of image processing is cost-ineffective and more complicated than using electronic sensor solutions. The most appropriate solution an infrared optical gate appears, due to constant results accuracy when changing the colors and sizes of measured individuals, small size and relatively easy implementation. Furthermore, a straight track and an electronic system using the selected optical gate concept has been constructed and implemented software for control and evaluating the entire measurement.
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Design and realization of photodetector using Arduino platform
Vrána, Milan ; Háze, Jiří (referee) ; Veverka, David (advisor)
Arduino, Arduino Nano, Processing, photodetector, optical gate, communication, UART, I2C, interrupt, timer, application, temp measurement, humidity measurement, electroscope, 3D print
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Automatic people counting
Szalbot, Michal ; Mišurec, Jiří (referee) ; Koutný, Martin (advisor)
The main subject of this bachelor thesis is utilization of optical sensors for people vehicle counting. This types of sensors were selected - optical barrier, passive infrared sensor, active reflective sensor and ultrasonic sensor for people vehicle counting. The tasks and used sensors are described in introduction. The selected applications available on the market and description of their function are described there too. The solution describes individual type of sensors, their function, used involvement in tests and tests results. The conclusion contains summary of knowledge of sensors, their possibilities and other possible solutions.
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Electronic timekeeping with movement detection
Paulus, Luboš ; Brož, Vladimír (referee) ; Klusáček, Stanislav (advisor)
Agility is a competition for dogs and their whipper. The score is made from numbers of errors which dog made and also time in which the dog overcomes crimps decides. Start and finish are detected by the reflective optical spar with logical NPN output. Spar havs to detect only dog in set position in recruit. This signal is processed by a micro – controller, which processes data, more precisely time with accuracy on tenths, sends data on the superior PC.The communication of micro-controller and PC is possible only through USB, RS 232 or wireless RS 232.
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