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Smart Loudspeaker with Raspberry Pi
Vondráček, Tomáš ; Špaňhel, Jakub (referee) ; Herout, Adam (advisor)
The bachelor thesis deals with the creation of music system that allows users to organize and play music in real time. The music system is based on client-server architecture and consists of server, web and mobile application. The server application serves as a music player and a connection broker among clients. The client serves as a user interface for the server, but can organize and play music on its own. The music system is implemented in JavaScript (ECMAScript 2018). The server application is built on the Node.js and implements Socket.IO server with REST API. The web application is based on React and presented as SPA. The mobile application is implemented in React Native with focus on Android system. The server and web applications are deployed on Heroku servers and Raspberry Pi computer. Mobile application is published on Google Play. The music system can be used for private music playback or as a means of organizing music among multiple users.
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An ITIL Simulator Game Engine
Pučálka, Martin ; Křivka, Zbyněk (referee) ; Rychlý, Marek (advisor)
This master's thesis is focused on Information Technology Infrastructure Library (ITIL). Objective of the project was to analyze, design and implement a game engine, which would provide simulation of IT service operation in real or accelerated time or in turns. Basic part of the engine is a creators mode, which allows users to create custom IT services and specify their behaviour during operation, like the service would be used in real. Another part of the engine is a players mode and simple service desk. In this mode, players can take care of fluent operation of their services. Thanks to this, they can learn and train practices, which are described in ITIL.
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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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A System for On-Line Driving School Trip Recording
Voneš, Jakub ; Bartík, Vladimír (referee) ; Burget, Radek (advisor)
The subject of this thesis is the design and implementation of a client-server applications for collecting GPS data using a smartphone with Android OS. The system is used for real-time monitoring and recording vehicle’s movement on a server, where the data are adapted to the real road. This thesis is a continuation of the project DoAutoškoly.cz . The theoretical part of the thesis deals with GPS, real-time communication problems and the Android platform, including its application interface for GPS. In the next part of the thesis, this knowledge is used to design the whole system. The thesis continues with the implementation of a mobile application, the web module and the corresponding server application. The chapters continue to deal with real-time tracking and route editing. The last part is focused on testing and evaluation of the results.
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Synchronization of vector graphic between multiple clients and server
Votava, Štěpán ; Bruckner, Tomáš (advisor) ; Vencovský, Filip (referee)
Goal of this master thesis is to analyze existing algorithms for ensuring consistency in real-time synchronization of vector graphics between server and multiple clients, testing them, describe main differences and selection of the best for this purpose. The theoretical part is devoted to realtime comunication over HTTP, to WebSockets, to concurrency algorithms and to basics of application architecture. The practical part describes the technology used in this thesis, as well as actual application design a its implementation. The result of this thesis is an overview of concurrency algorithms, the choise of technology for real-time communication between server and multiple clients and implementation of selected technologies and algorithms in Node.js application.
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Kooperativní práce na dokumentech v aplikaci TeXonWeb
Telenský, Václav
The diploma thesis deals with design and implementation of cooperative work on documents in the application TEXonWeb. The diploma theses includes the analysis of competitive solutions and key technologies for implementation. The cooperative work on documents is a functionality which allows users to cooperate simply on one document in real-time. Text of the thesis describes the process of implementation using the technology which is described in the initial analysis. The diploma theses also includes some ideas for next possible development.
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Real-time web applications
Paulech, Matej ; Mittner, Jan (advisor) ; Buchalcevová, Alena (referee)
This paper discusses real-time web applications. Its main purpose is to familiarize the reader with the term "real-time web application" and the technologies behind creating real-time web applications with an emphasis on a practical demonstration. The first chapter is about the history of World Wide Web, the description of the HTTP protocol and the definition of real-time web applications. The second chapter describes the technologies used in other parts of the work, mainly their implications and usage in developing real-time web applications. Technologies like JavaScript, JSON, Ajax (XHR, JSONP), jQuery library and server solution Node.js will be mentioned. The third chapter is the major part of the paper. It deals with the techniques of a real-time client communicating with the server, also called transport models. Each technique and its description is accompanied by a picture showing the client's communication with the server and an example source code. At the end of the third chapter, the solutions mentioned are widely used by programmers, specifically the Ajax Push Engine (APE), the Socket.IO library and the service Pusher.com. The fourth, the last chapter of the paper, contains a description of the demonstration web application created for the purpose of this work - a multi-user group chat. It is mainly a description of its features and how you prepare an environment to run real-time web applications. It also contains a tutorial how to create a basic "skeleton" for real-time web application using Node.js server solution, Express framework and Socket.IO library. The source code of the sample application is located on the enclosed DVD, and digitally as an attachment on the VSE information system and it is also uploaded at Github. The main contribution of this paper is to provide a comprehensive and coherent description of technologies behind creating real-time web applications with a provided example source code for a demonstration for each technique.
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