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Android IP Camera
Chvála, Jan ; Havel, Jiří (referee) ; Herout, Adam (advisor)
The goal of this thesis is to design a system which would allow video data streaming from a mobile device and real time playback using a standard web browser. The technological background and the implementation platform are both part of this thesis. Web Real Time Communications (WebRTC) technology was used for acquiring multimedia data on mobile device. This technology is natively supported in the latest major web browsers and in WebView component (Android version 5.0 and above). Sending push notifications from a server to a mobile device to start the streaming is done with Google Cloud Messaging technology. The resultant system allows a user to start the application on mobile device with easy web browser access. This starts the multimedia stream from device, which can be parametrized and secured by password. The benefit of this thesis is the overview of WebRTC technology and its demonstration. The IP camera implementation shows how easy it is to use the WebRTC in real applications.
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Processing and Streaming Video in Browser for Screen Recording
Svačina, Lukáš ; Beran, Vítězslav (referee) ; Španěl, Michal (advisor)
Aim of the thesis is to design and implement unique service based on the newest technologies in web apps fi eld which allows screen recording followed by P2P distribution between participating users using web browser only. Thesis deals with the analysis of modern and coming technologies which allow practical implementation of such a service. It involves obtaining access to the screen source data, its recording, transforming and transmission over the network followed by playing on the other side. Recorded videos are adapted for part by part use in a player with seeking capability. Distributed architecture for data exchange between peers using peer-to-peer connection based on hybrid P2P VoD network provides scalability of the solution. The player allows obtaining the necessary parts of the videos from the current watchers with smooth video playback experience during ongoing transmissions whilst allowing arbitrary video shifting. In consideration of early stages of development or experimental support for some of the APIs needed for this work, research into browsers' support with discussion on realistic applicability nowadays is always performed.
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Peer-To-Peer Web File Sharing in a Group
Pokorný, Filip ; Španěl, Michal (referee) ; Herout, Adam (advisor)
The diploma thesis deals with file sharing among users through peer-to-peer transfer in a web environment. The aim was to create a simple application which would provide a group of users with an opportunity to share files among them without any presence of third party or limitation. I have met the target using modern web technologies, of which the most important was WebRTC library through which peer-to-peer transfer has been implemented. These technologies were supported by optimased algorithm and the most recent tools for processing and storage of shared files. The result is a real-time application enabling users to create rooms, in which they can share their files. This product was subjected to speed tests, thanks to which the application turned out to be the fastest in the tested environment contrary to solutions with similar nature or any other commonly used tools for file sharing.
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Radar Interface and Its Interconnection to Air Traffic Control System Simulation
Buchníčková, Tereza ; Ondřej, Karel (referee) ; Smrž, Pavel (advisor)
This thesis aims to create an application for training new air traffic control officers. The system is implemented as a JavaScript web application using the JQuery and Leaflet libraries. The server part is written in Python using the BlueSky library for air traffic simulation. The thesis presents a theoretical background and discussed the design and implementation of the system. The result is an application that offers to display current air traffic, or where the user, in the role of air traffic control officer, can practice communication with a pilot on simulated air traffic. The application allows the recording of voice communication and, in cooperation with an automatic speech recognition system, converts this communication into text displayed on the screen. In addition to the support of the training of air traffic operators, this application also serves as a demonstration of the results of the research groups KnoT and Speech from the Faculty of Information Technology, Brno University of Technology.
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Optimalizace procesu nasazení technologie WebRTC
DUŠEK, Jiří
The diploma thesis deals with the optimization of deployment and infrastructure of systems based on WebRTC technology for streaming video and audio over the internet network, in which this technology enables creating P2P connections between endpoints. The thesis describes problems related to P2P access and finds an alternative in the form of a specific SFU server. The provided client application implements P2P communication method, which is compared with SFU thanks to the implementation of its own measuring apparatus and implements automated switching of both modes in the background of the ongoing conference and proposes further optimization changes for a continuous conference in order to reduce endpoint load.
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Voice Dialog System in Web Browser for Demonstration Purposes
Vlček, Pavol ; Glembek, Ondřej (referee) ; Schwarz, Petr (advisor)
Cieľom práce je navrhnúť a vytvoriť hlasom ovládaného asistenta(voicebota), ktorý bude ľahko nasaditeľný na webovú stránku. Používateľom tak bude poskytnutý moderný spôsob, ako prirodzene komunikovať cez internetový prehliadač. Hlavný dôraz je kladený na synchronizáciu medzi hlasovým asistentom a obsahom na webovej stránke. Synchronizácia je dosiahnutá obojsmerným prenosom hlasu a textových príkazov medzi klientom a serverom. Na to je použitá technológia WebRTC v kombinácií so signalizačným protokolom SIP. Práca sa zaoberá oblasťami ako VoIP telefonovanie, počítačové siete a strojové učenie(proprietárne rečové technológie od Phonexie). Benefitom nasadenia hlasového asistenta je zníženie nákladov na odchádzajúce hovory pre klientov, odľahčenie agentov na call centrách pri odpovedaní na často kladené otázky a zvýšenie záujmu zákazníkov vďaka použitiu nových technológií.
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Smart Digital Mirror for Individual Sports
Opichal, Tomáš ; Beran, Vítězslav (referee) ; Herout, Adam (advisor)
The aim of this diploma thesis is to create a practical solution for individual athletes in the form of a digital mirror, which can become an alternative to observing yourself in an ordinary mirror. The work contains and emphasizes the benefits of a digital mirror. Much of the work is devoted to the transfer of video between various devices for the ability to combine multiple videos on a single screen. The core of the solution is a mobile application for the Android platform, which works in various modes, the choice of which depends on how the application is used. The application was continuously tested with a group of users, resulting in iterative improvements to the application's features and the addition of new features. Furthermore, a web variant of the application was implemented, which increases the possibility of using the digital mirror across different platforms. The results of testing show that this whole solution can be used in the practical training of sports exercises and the application has the potential to connect with various sports.
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Application Development Framework for Peer-to-Peer Collaboration
Hrdina, Jan ; Očenášek, Pavel (referee) ; Rychlý, Marek (advisor)
The thesis deals with the design and implementation of the application framework for the creation of collaborative web editors that enable peer-to-peer collaboration in real time. The thesis summarizes existing approaches for data replication, from which M. Kleppmann's CRDT (conflict-free replicated data type) for JSON is chosen as the most suitable. Using the resulting framework, the created content can be safely shared in groups of peers, where each member can be assigned different permissions. Own communication protocols based on WebRTC, WebSocket and WebCrypto are designed and implemented for P2P connection establishment and subsequent communication. The framework allows to resolve conflicts and work independently without an Internet connection. For a consistent user experience, the library includes a set of user interface elements for managing friends, groups, and other common tasks. The framework is implemented using functional design patterns implemented in the ReasonML language. The functionality of the result is verified by creating an example application of the mind map editor.
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Information System Assessment and Proposal of ICT Modification
Barič, Filip ; Koch, Miloš (referee) ; Klusák, Aleš (advisor)
This diploma thesis focuses on analysis, evaluation and improvement proposals for an information system used by a specific company from the insurance business. The company offers services to insurance companies, such as motor vehicle or property inspection and damage assessment. The first part describes the theory related to the main focus areas of this thesis. The second part contains an overview of the company, its analysis as well as evaluation of the information system used within the company. Finally, a set of proposals will be formulated, based on the outcomes of company and information system evaluation, aiming to simplify company processes and increase company’s productivity.
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