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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
301

Vysokorychlostní komunikační linka pro akvizici dat / High performance data acquisition communication line

Hadámek, Jakub January 2020 (has links)
The aim of this thesis is the acquisition of data from the AD converter and it’s transfer via the JESD204B interface to FPGA with the following transformation and transfer to PC through 100G Ethernet or PCI Express interface. The first part of the thesis is focused on the introduction to used technologies and hardware and analysis of the solution of this project. Second part of the thesis describes solution and it’s functionality. I created HDL design which allows to transfer data from AD converter using both of the interfaces mentioned above. I also created software application for OS Linux which allows to receive and store incoming data in PC. In the end, the results of the measurement using the converter board are presented and discussed.
302

Převodník mezi protokoly Modbus-RTU a Modbus-TCP / Converter between Modbus-RTU and Modbus-TCP Protocols

Pitko, Erik January 2021 (has links)
The main objective of this work is to inform the reader of the communication protocols Modbus TCP and Modbus RTU and create an embedded device based on the microprocessor STM32 capable of conversion between Modbus RTU and Modbus TCP protocols. The device should be capable of simple first run configuration with simple user interface.
303

Návrh LAN pro ÚTKO / LAN design in the Dept. of Telecommunications

Kučera, Filip January 2008 (has links)
This diploma thesis deals with the proposal and the maintenance of Ethernet computer networks in the Department of Telecommunication property in Brno. There is a description of communication line types used in LAN computer networks in the first parts of the work. Their advantages and disadvantages are introduced too. Further there is an existing situation of the computer network on the third and the fourth floor of the Department of Telecommunication building documented. This documentation includes a design and a list of used components. The existing computer network has some minor inadequacies that were taken into consideration in the new proposal. There is a completely elaborate documentation of the new proposed network on the third and the fourth floor that contains a detailed placement and a single component configuration including their description. This documentation should significantly contribute to more effective network maintenance in the future. The computer network maintenance does not contain only servers, printers or workstations. It's also necessary to consider network parts that are not so perceptible for common users. That means single segments of computer networks with its active devices. A web based application for the effective computer network maintenance is proposed and described in this work too. The application allows administrator to keep a well-arrange view of the single network segments. All network related information is saved into a database that can help with a solution of later occurred problems.
304

Přístupový systém s rozhraním Ethernet / Access system with Ethernet interface

Knotek, Martin January 2008 (has links)
The access system with the Ethernet interface is presented in this diploma thesis. Access control system is based on the RFID technology. Each identification unit reads the users card number and sends the request to the server other the network. Server checks the card number and sends the answer. The doors are opened. The first part of this diploma thesis deals with the theoretical description of the access control systems. All used technologies are described in this first part of this work. The second part of this thesis describes hardware design of the RFID identification unit with the Ethernet interface and microcontroller Rabbit. The last part presents designed communication protocol. This protocol supports AES secure communication standard. The control program of the identification unit and to the software design of the database and the server application is made and described in this work too.
305

Komunikační souprava pro optické bezkabelové spoje / Communication assembly for optical cableless linking

Kapuš, Martin January 2008 (has links)
This Graduate Thesis is about communication module for optical wireless network. This device read data from RS232 port and two analog inputs and sends it through internet to a remote Computer. Furthermore allows voice communication between local user on module and user on remote computer. Device allows communication with standard headphones and microphone, or with Bluetooth handsfree. Basic part is microprocessor MCF5223 and Bluetooth Ezurio BISM II module. Control program has been written in C language. Printed circuit is created by EAGLE program. This device is managed via web interface and settings have been stored into EEPROM memory. Work contains description of separately parts and blocks, source code of program, description of source code and printed circuit designs.
306

Řídící a monitorovací jednotka pro hlavici optického spoje / Control and monitoring unit for optical link station

Ovčáček, Martin January 2008 (has links)
The aim of Master's thesis "Control and monitoring unit for optical link station" is design of hardware and software of unit, which provides remote control and data transfer through Internet. It is required monitoring and setting analog parameters of optical link station by web service. It includes description of Ethernet and net protocols. The core of unit are microcontroller C8051F120 and ethernet controller CP2200 made by Silicon Laboratories.
307

Systém měření teploty s výstupem Ethernet / Temperature monitoring system with Ethernet output

Hanák, Václav January 2009 (has links)
This master‘s thesis deals with temperature measurement in industrial environment. The first part of this thesis is aimed at studing basic principles of temperature measurement using resistive temperature detectors. Next parts describe design and practical implementation of inteligent temperature transmitter with digital output RS485. This incudes detailed design of circuit solution, printed circuit board, firmware for used microcontroller and user‘s software for personal computer. The second part studies basics of the comunication standard Ethernet (IEEE 802.3), it discusses nowadays possibilities of Ehternet implementation to industrial trasmitters. Last parts of the thesis are aimed at design and practical realization of Ethernet communication module.
308

Zabezpečený převodník standardu RS-232 na Internet / Secure converter for an RS-232 standard to the Internet

Pokorný, Michal January 2010 (has links)
Master´s thesis tries to find a solution to make a secure transmission channel between virtual serial ports on the personal computer and the serial ports on the Rabbit RCM3700 development KIT. Today’s communications channels don't offer appropriate security of a whole communication. Therefore it depends on get-togethers, in order to realize this security themselves. This security means ensuring reliable transmission of data to be encrypted between parties so that any attacker is not able to read real-time, or eventually change them. As a result of this Master thesis is the design and implementation, which in addition to encryption algorithm provides sufficient security and authenticity of communication between the parties. As an encryption algorithm has been chosen widely used AES algorithm and as authentication algorithm has been chosen algorithm, which for authenticity requires knowledge of the secret key.
309

Inteligentní převodník Ni odporových senzorů s rozhraním Ethernet / Ni sensors to Ethernet convertor

Kubíček, Ondřej January 2010 (has links)
This work deals with hardware and software solution for the temperature converter of the standard rezistance temperature Ni sensors with the output through the Ethernet, driven by the Rabbit microcontroller. First part of this thesis deals with the theory of the temperature measurement. There are introduced basic principles of the temperature sensors. In the next part of the work are introduced communication standard and application protocol Modbus. The rest of the work deals with the hardware concept of the converter, the control program of the converter and the program developed for the PC.
310

Návrh a realizace laboratorního pracoviště s mikrokontrolérem RABBIT / Laboratory stand with RABBIT CPU

Váša, Tomáš January 2011 (has links)
This master’s thesis contains design of laboratory stand for learning programming microcontrollers. Stand is equipped with two Rabbit modules, which are connected together over local area network. Exercises are focused on working with basic peripheries as digital inputs and outputs,PWM modulation, serial communication. Exercises are interested in evaluation of matrix keyboard and communication with alphanumeric display controller. With the ability to easy access the Internet some exercises are designed for work with this interface. To these exercises is made a preparation of external peripherals. Through these peripherals there can be can be controlled DC motors, step motor, binary outputs and inputs. Each lab exercise contains an introduction, task, instructions and the flowchart of realized exercise. Instructions are written so that it contains important steps to properly manage assignments. Individual exercises are designed to gradually increasing complexity of exercises.

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