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Application for remote control of devices in smart home
Čislinský, Jan ; Pecinovský, Rudolf (advisor) ; Rais, Aziz (referee)
The thesis analyzes current home automation trend with a brief historical context. It presents conception of Apple company and its platform iOS from the beginning of development to actual state. The thesis shortly compares differences between programming language Objective-C and a new language Swift. It describes emerging framework HomeKit which was created to control smart appliances at homes. In practical part of the thesis there is designed mobile application running iOS platform that controls real smart devices at homes with HomeKit framework. Application is created in Swift programming language and is inserted as a component of this thesis.
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System for stabilizing femtosecond lasers
Čížek, Martin
We describe a device intended for stabilizing optical frequency combs with respect to high-grade RF oscillators. The whole designed system is modular and can be adapted to actual conditions given mainly by level, frequency and signal to noise ratio of the processed signals. The device is based on a specialized integrated circuit (IC) that contains functional blocks for direct digital synthesis, digital phase detection, limiters, programmable dividers and control logic. The specialized IC is accompanied by specially developed control electronics based on a microcontroller that allows communication via CAN bus. This allows remote management of the whole system and integrating it into complex automated experiments with optical frequency synthesizers. The device is used for stabilizing offset or repetition frequency of the optical frequency comb. To ensure best possible conditions for a fast first-order controller the setup is extended by a slower second-order controller with a high dynamic range. This second-order controller is built around a specialized 18-bit AD/DA card and a software application in LabView environment. The bandwidth of the closed control loop can be up to single MHz. The only limiting factor is the tuning speed of the femtosecond laser.
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Home System Integration Research
Randl, Milan ; Basl, Josef (advisor) ; Houdek, Vladimír (referee)
The aim of this dissertation is to bring the complete view of the Home System Integration, including public survey based on this data. Households are generally composed of several different systems that are controlled separately and are not interconnected. The purpose of Home System Integration is to connect all electronic equipment to make household safer, more efficient and more comfortable. The public survey, forming a practical part of the thesis, brings the view of Home System Integration in the Czech Republic. It can also serve as an information source for producers, sellers, their further product development and setting sales strategies.
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