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Communiacation software for terminal clients of a Linux server
Hanák, Karel ; Jeřábek, Jan (referee) ; Jelínek, Mojmír (advisor)
The thesis contains a proposal and implementation of an environment convenient for operation of network client applications which use common terminals. It also consists of implemented examples where the way of their usage is presented. The centralized way of communication is the basis. The approach is used also for the possibility of their joining with managing subsystems, i.e. unlimited ways of regulation of systems for real estate management, access to devices, user authority access to access data points to the devices. The environment is based on operation system Linux and database MySQL. Their realization is supposed on a server, in the network environment. This relates also to the overall security policy and this work also focused on social treatment of clients possibilities.
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Software for assuming control over the computer
Kostelník, Jan ; Kouřil, Jiří (referee) ; Polívka, Michal (advisor)
The introduction of this Master’s thesis describes a historical and technological evolution of the terminal application, including its advantages and disadvantages. In the following part, a general description of the services and their understanding are mentioned. The benefits and general advantages of the terminal services are described. For the each type of the terminal service, all the functions, options, exact advantages and disadvantages are described. Consequently, the study of the suitability of the compression is presented. On the demo application, the impact of an excessive (voluntary) loss of information is demonstrated. In the next part, the thesis deals with the most frequently used remote-control applications. The tests and comparisons are made as well. The fifth chapter is the fundamental part of this work. The design approach of the workbench is presented there. Consequently, the design approach and system implementation intended for the supervision and control is described. This system makes the user possible to observe other user’s activities and also to control their workstations. The supervising user can also access their drives and other memory devices, which are located in the monitored workstation. The communication is compressed and encrypted. The symmetric and asymmetric encryption algorithms are used there. In the following part, there are two supplementary applications mentioned – application for the key generating and network file manager. In the end of my work, the results of the performance test and also the design of other improvements are presented.
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Wireless dataexchange for heat exchanger
Wojnar, Petr ; Hynčica, Ondřej (referee) ; Štohl, Radek (advisor)
The subject of this bachelor’s thesis is firstly an introduction to devices that are used for controlling the heat exchanger model, visualization and wireless data-exchange. For this purpose are used ROCKWELL AUTOMATION programmable logic controllers, ROCKWELL AUTOMATION terminal and SATEL radio modems. A schematic of the heat exchanger model is also included with description of each model part. The second part of this document is focused on the design of regulation, visualization and wireless data-exchange by means of already mentioned devices. The last part describes realization steps of controlling, creating of visualization and algorithm for wireless data transfer according to designs mentioned in the second part of this document.
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Cloud computing with regard to technological aspects and changes in infrastructure
Vítek, Daniel ; Donát, Jiří (advisor) ; Bruckner, Tomáš (referee)
This thesis discusses the new way of delivering IT services over the Internet widely known as cloud computing. In its opening part, cloud computing is put into a historical context of the evolution of enterprise computing, and the dominant issues the IT department faces today are mentioned. Further, the paper deals with several components that make up the architecture of cloud computing and reviews the benefits and drawbacks an enterprise can have while it adopts this new model. One of the primary aims of this thesis is to identify the impact of the technology trends on cloud computing. The thesis brings together four major computing trends, namely virtualization, multi-tenant architecture, service-oriented architecture and grid computing. Another aim is to focus on two trends related to IT infrastructure that will lead to fundamental changes in IT industry. The first of them is the emergence of extremely large-scale data centers at low cost locations, which can serve tremendous amount of customers and achieve considerable economies of scale. The second trend this paper points out is the shift from multi-purpose all-in-one computers into a wide range of mobile devices dedicated to a specific user's needs. The last aim of this thesis is to clarify the economic impact of cloud computing in terms of costs and changes in business models. The thesis concludes by evaluating the current adoption and predicting the future trend of cloud computing.
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Linux terminal server for thin client and computing cluster
JALŮVKA, Adam
The goal of this work is to aquaint the reader with projects LTSP and openMosix. The complex sollution of the terminal server and the computing cluster with an automatic load balancing is created on the basis of these projects. This work is not only aimed at projects which are already capable to stay independently next to each other, but it is also aimed at the linkage of projects which produce benefits. The first advantage is the ability of an easy connection of new nodes to the computing cluster without the need of installation. The second advantage is that nodes can contribute with its systems resources to the terminal server and other clients.
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Project and realization power tools control with PC
ČEJKA, Jan
My diploma thesis is concerned with the scheme, constructive solution and implementation of the prototype and project. Via PC with the help of a circuit ASIX FT232BM, the prototype operates a ATTiny2313 microcontroller, which enables switching of the power part and PWM modulation outputs.The project describes operating by a programmable terminal AMIT APT3100(S) connected to a PC, and the wiring of a basic safety-loop and several measuring devices.
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New trends in international container transport
Havlíček, Václav ; Machková, Hana (advisor) ; Švábková, Eva (referee)
This master thesis is divided into five chapters. In the first one, evolutionary trends in the international container transport are described along with the standardization process and typology of various container types. Second part characterizes different contracts used in international transport and points out diversities in the position of individual parties as per contract chosen. Third chapter goes more in detail into selected modes of container transport. The main transport mode (by volume), i.e. marine transport, is thoroughly analysed in the fourth chapter, which continues into the last part, where author compares market position of the three main european container terminals based on four pre-set criteria.
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Payment cards
Kratochvílová, Eva ; Procházka, David (advisor)
This Bachelor's thesis deals with the features of payment cards as well as the analysis of the payment transaction. The first part presents the overview of the historical development of payment cards, their legal regulation, their requirements, kinds of payment cards and their use nowadays. The second part describes a non-cash payment transaction by payment card and analyses both technical and accounting processes of this transaction.
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