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Doppler blood flow detector
Klügl, Jan ; Čech, Petr (referee) ; Rozman, Jiří (advisor)
This bachelor's thesis is engage in suggestion of nondirection doppler blood flow detector with unmodulated carrying wave. At first the thesis describes indicator's principle of working and mention the systemic proposal for working frequency and intensity of ultrasound. Later in detail describes individual blocks, which are the detector consist of. At every block of system is mentioned the diagram of connection and values of components, which are ascertained from calculation, simulation and recommendation of producer.
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A Proposal for a Security System of the Company Premises
Černý, Jan ; Sedlák, Petr (referee) ; Ondrák, Viktor (advisor)
The content of this thesis is the complex security system proposal, specifically of PZTS system and CCTV system. The thesis is divided into three parts. The first part is analysis of the current state, the second is theoretical part and the third part is a practical part. The first part deals with the analysis of the current state of physical security and technical protection of the premises. The theoretical part deals with theoretical solutions for security system proposal. The practical part is focused on separate PZTS and CCTV systems proposal, that will meet all the requirements and standards of the customer.
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Prediction and analysis of traffic crossings using machine learning
Hlaváček, Jakub ; Frýza, Tomáš (referee) ; Götthans, Jakub (advisor)
The thesis focuses on the area of traffic control, specifically traffic control of intersections, especially control technologies based on the obtained traffic data. The main goal of the work is the design and subsequent implementation of a real intersection Anenská and Capt. Jaroše, Pardubice in the form of a model. The work also deals with the demonstration of the used signal programs of junction control through the created model. The model is assembled from a wooden base and smaller parts are made by 3-D printing. The unit is controlled by an Arduino microcomputer. In creating this thesis, I managed to understand the comprehensive traffic management in today’s cities, which requires the current traffic situation.
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A Wavelet-Based QRS-Complex Detection
Kocian, Ondřej ; Provazník, Ivo (referee) ; Kozumplík, Jiří (advisor)
This project investigates methods of construction the wavelet-based QRS-complex detector. QRS-complex detection is very important, because it helps automatically calculate heart rate and in some cases it is used for compression ECG signal. The design of QRS detector can be made with many methods, in this project were mentioned and consequently tested only a few variants. The principle of designed detector used a wavelet-based decomposition of the original ECG signal to several frequency-coded bands. These bands are consequently transformed to absolute values and with the help of the threshold value are marked positions of assumed QRS complexes. Then are these assumed positions from all bands compared between themselves. If the position is confirmed at least at one nearby band, then is this position marked as true QRS complex. To increase efficiency of designed detector, two modifications were additionally mentioned. The first one, using the envelope of the signal, had rather negative effect on detectors efficiency. The second modification, using combined signal from three pseudoorthogonal leads, had reversely very good effect on detectors efficiency. In the end, the designed detector and all its modifications were tested on signals from CSE library (exactly on leads II, V2 and V6).
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A fuse heating measurement using IR camera
Belák, Michal ; Valenta, Jiří (referee) ; Aubrecht, Vladimír (advisor)
Bachelor's thesis deals with various principles of contactless temperature measuring and comparison of these principles. Different kinds of detectors, which are used in pyrometers and thermovision systems are presented, together with description of various kinds of the contactless thermometers, their division according to many different criteria. Next it is intended on the description of thermovision exploitation in different areas of practice. An example of practical fuse heating measuring and its analysis is also presented.
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Semiconductor utilization for the capture of ionizing radiation
Klus, Roman ; Varmuža, Jan (referee) ; Radil, Lukáš (advisor)
Tato bakalářská práce popisuje typy a vlastnosti nukleárních článků a analyzuje vzájemné působení ionizujícího záření a polovodičů. Polovodičové nukleární články jsou stroje, které přeměňují energii ionizujícího záření na elektřinu, detektory využívají polovodičové materiály k měření veličin. Součástí tohoto projektu je popis ionizujícího záření, polovodičů, nukleárních článků a detektorů. Následně je popsán betavoltaický nukleární článek a jeho součásti. Je realizováno měření polovodičového nukleárního článku a je proveden rozbor potvrzující pravdivost teoretických poznatků.
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Automated Detection of Relations in Data Structures
Nováček, Pavel ; Fiedor, Tomáš (referee) ; Smrčka, Aleš (advisor)
This thesis deals with automated knowledge acquisition from structured data, precisely it includes detections of relations of data types in tree-structured data. The thesis is a part of Testos platform, which aims at software testing automation. The goal was to design and implement a solution that would automatically plan and execute detections over samples of real data structures. Detections would be handled by external modules called detectors that would cooperate with the solution. The final tool is a service which implements a algorithm for communicating with detectors via well-defined protocol, sending them requests in parallel to perform detections and handling results of detections. The service can be managed and tasked via created HTTP API. The results of detections, i.e. meanings and relations of input data, are used by other tools of Testos platform for the purpose of generating new test data with structure corresponding to input samples of real data.
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Implementation of voice activity detectors using open-source libraries in C language
Mach, Václav ; Špiřík, Jan (referee) ; Míča, Ivan (advisor)
This diploma thesis discusses the issue of Voice Activity Detection. There are two types of detectors described: energetic and statistics. Their funktionality is proved in the Matlab environment. Further, the implemetation of VADs is made through C language with standard libraries and GSL open-source libraries. The realized algorithms are compared in the scope of processing time of computation, memory management and a single mathematical operations stress. Also a comparism of the processing time according to segment length was made.
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Luxmeter
Vítek, Jiří ; Bereznanin, Martin (referee) ; Rozman, Jiří (advisor)
This bachelor thesis deals with a method of measuring working illumination and with a design of basic luxmeter, which has a range of measurment 50-1000 lx. The thesis contains a detailed description of individual detectors, a design of luxmeter connection and also includes a description of individual functional blocks. For the whole apparature is performed a suggestion of the printed circuit boards.
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QRS detection based on wavelet transform
Zedníček, Vlastimil ; Ronzhina, Marina (referee) ; Smital, Lukáš (advisor)
This thesis deals with implementation of detector QRS complex with use of wavelet transform. The first part is focused on formation and possibility to measure cardiac activity. The other part of thesis we will familiarise with the different possibilities of detection QRS complex and we intimately focus on wavelet transform that will be used for a project of detection QRS complex. The practical part of thesis focuses on the project of detector in programming language Matlab and his different setting. This projected detector has been tested with CSE database. Achieved results of projected detector are evaluated with the results of others authors.
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