Global ETD Search

11	Implementace ovladače I2S Audio v systému Freescale MQX RTOS / Implementation of the I2S Driver into the Freescale MQX RTOS Možný, Karel January 2012 (has links) This thesis deals with design and development of a I2S module driver for real-time operating system MQX running on a ColdFire V4 architecture based processor. Further there are presented circuit diagrams and PCBs created for testing of functions and properties of the driver. Signal input is a digital audio in form of S/PDIF interface, output is an analogue signal, that can be listened by the means of a headphone amplifier. The conclusion describes a sample application demonstrating function of the driver on developed hardware.
12	Bezdrátový hlasovací systém založený na IEEE 802.15.4/Zigbee / Wireless Voting System Based on IEEE 802.15.4/Zigbee Albrecht, Pavel January 2010 (has links) In the work, a detail description of the wireless IEEE 802.15.4/ZigBee protocol is presented along with the architectural design of the wireless voting system based on the mentioned technology. The voting system proposed in the work is based on the Freescale's 1321xNSK development kit. The problems related to the design and implementation of the system by means of the kit as well as the problems related to the record-management scheme using the application server, the data backup method and web-export functions including the views are described in the work. At the end of the work, the proposed system is analyzed from several points of view and its main characteristics are summarized.
13	Konstrukce mobilního robota pro monitorování teploty okolí / The construction of a mobile robot for monitoring ambient temperatures Čejka, Štěpán January 2016 (has links) This diploma thesis deals with the design and control of the mobile robot with caterpillar tracks on the basis of information obtained via infrared thermocouple. The work includes firmware implementation for robot chassis control and communication with the sensors used. The functionality of the proposed system is demonstrated on a robotic task when the robot is searching the source of excessive heat within his surroundings. The theoretical part deals with the basic description of the common robotic chassis, contactless temperature measurement, further analysis of the components used and their principles. The practical part is devoted to the firmware implementation and detailed description of selected problems. In the end of the thesis there is a summarization of the achievements and the success of the robot while detection of the suspicious objects with high surface temperature.
14	Bezdrátový přenos signálu rozhraní DMX512 / Wireless Signal Transmission of DMX512 Interface Polóni, Pavol January 2009 (has links) Master's thesis deals with design and implementation of a system for wireless transmission of DMX signal 512, which is primarily designed for the management of lighting effects. Its electrical specification is based on the EIA485 standard. Text of the work describes the design stage. First is the issue of implied actual protocol DMX 512 or EIA485. Next sign on selecting a suitable architecture for wireless transmission, management and compilation of the block diagrams. Describes the operation of the component selection and circuit implementation of the scheme, which is using the DPS Eagle compiled. In conclusion, this work is to evaluate the results of the proposed system and showing the way to its further development so that it can be realistically implemented in practice.
15	Praktická realizace přípravku demonstrující systém RFID / Prototype realization for RFID system demonstration Pernica, Josef January 2009 (has links) This diploma thesis deal with design and realization of demonstration board for RFID system. In the begining is described theory of this system. Next part is about theory of solutions and used components. Next is about practical realization demoboard and control program in C language.
16	Knihovna pro programování mikrokontrolérů nezávisle na jejich rodině / Family Independent Microcontroller Programming Library Konečný, Ondřej January 2014 (has links) This project describes a concept of a library architecture that will enable to hide platform-specific behaviour of different MCUs under an united API that will enable the developers to develop portable applications. After a short summary of the current situation, the report describes the main principles of the library-to-be followed by definitions of behaviour of each module that can be controlled using the library. Then this report describes techniques used in the implementation and platform specifics. In the conclusion there is an idea of the direction in which the development could continue.
17	Porovnání RT vlastností 8-bitových a 32-bitových implementací jádra uC/OS-II / Comparing RT Properties of 8-Bit and 32-Bit Implementations of the uC/OS-II Kernel Šubr, Jiří January 2013 (has links) This thesis concerns of benchmarking $\mu$C/OS-II systems on different microcontroller architectures. The thesis describes COS-II microcontroller core and possible series of benchmark tests which can be used. Selected tests are implemented and measured properties of microcontrollers with different architecture are compared.
18	State of Secure Application Development for 802.15.4 Armstrong, Janell 16 April 2009 (has links) (PDF) A wireless sensor network consists of small, limited-resource embedded systems exchanging environment data and activating controls. These networks can be deployed in hostile environments to monitor wildlife habitats, implemented in factories to locate mobile equipment, and installed in home environments to optimize the use of utilities. Each of these scenarios requires network security to protect the network data. The IEEE 802.15.4 standard is designed for WSN communication, yet the standard states that it is not responsible for defining the initialization, distribution, updating, or management of network public keys. Individuals seeking to research security topics will find that there are many 802.15.4-compliant development hardware kits available to purchase. However, these kits are not easily compared to each other without first-hand experience. Further, not all available kits are suitable for research in WSN security. This thesis evaluates a broad spectrum of 802.15.4 development kits for security studies. Three promising kits are examined in detail: Crossbow MICAz, Freescale MC1321x, and the Sun SPOT. These kits are evaluated based on their hardware, software, development environment, additional libraries, additional tools, and cost. Recommendations are made to security researchers advising which kits to use depending on their design needs and priorities. Suggestions are made to each company on how to further improve their kits for security research. 802.15.4 IEEE 802.15.4 zigbee security research crossbow micaz freescale mc1321x sun sun spot wireless sensor network wsn development kit platform hardware software development comparison selection recommendations Computer Sciences
19	Bezdrátový systém pro vyhodnocení řízení osvětlení v budovách s cílem získat informace vedoucí k úsporám / Wireless System for Evaluation of Lighting Control in Buildings for Obtaining Information Leading to Savings Malinowski, Radim January 2015 (has links) The aim of the thesis is to design a system based on wirelessly comunicating devices that will be able to record an information about persons presesce in certain area. Aquired data will served for evaluation of the area lighting system efficiency. Partial goals related to this work are: to analyze electricity consumption mesaurement methods, to analyze presence and movement detection methods, to analzye wireless communication methods, to desin system's HW and SW including realization, to put system into a real operation and finally, to evaluate measured data.
20	Univerzální řídicí jednotka solárních kolektorů / Versatile Control Unit of Solar Collectors Tříska, Vít January 2010 (has links) This thesis deals with design and implementation of a versatile control unit, which is primarily designed for control of solar collectors. It describes the various stages of design. First, the system of solar collectors is introduced. Its input-output parts are analyzed and the requirements are determined for the control unit. The characteristics of temperature sensors are examined, the work deals with continuous variable speed circulators. The following part is dedicated to hardware and software implementation of the objectives of the work. The boards were designed in Eagle design environment, the firmware was written in C programming language. In conclusion, the evaluation of the results of the proposed system and possible ways of its further development are discussed. The versatile control unit can be deployed in practice realistically.

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