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Methodology for fault tolerant system state synchronization design and its recovery from faults
Szurman, Karel ; Fišer, Petr (referee) ; Racek, Stanislav (referee) ; Vlček, Karel (referee) ; Kotásek, Zdeněk (advisor)
In this Ph.D. thesis, a new methodology for the fault tolerant system state synchronization design and its recovery from faults is presented. A state synchronization method designed by means of the proposed methodology allows to repair the state of sequential logic elements implemented in the FPGA application logic, which cannot be repaired by the partial dynamic reconfiguration. The proposed methodology describes possible state synchronization design methods with respect to TMR granularity, dependence of the system function on its previous states and the system architecture. The methodology focuses on coarse-grained TMR architectures and state synchronization in the systems controlled by means of finite state machines or a processor. The use of the methodology is demonstrated on the CAN bus control system and the microcontroller NEO430, for which specific synchronization methods were designed. The systems reliability and new ability of the systems for recovery from faults were verified in the presence of simulated SEU faults. The experimental results and the contribution of this thesis are discussed in the conclusion.
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Embedded Control Unit for Instrumentation of Laboratory Appliance
Voda, Zbyšek ; Strnadel, Josef (referee) ; Šimek, Václav (advisor)
Aim of this thesis is modular design of control system for Golem device, which is used for drug research. Several modules with specified controlled area were designed. They communicate using CAN bus and are controlled by Raspberry Pi computer. The thesis includes PCB design and control firmware for modules, backend application for Raspberry Pi, which provides application interface, and simple protocol used for communication between modules. Designed system was tested in simulated environment.
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Real-time Control of Ball on Wheel Model
Krejčí, Roman ; Otava, Lukáš (referee) ; Hynčica, Ondřej (advisor)
This diploma thesis deals with control the Ball on the wheel system in real time. In the first part there is made mathematical model of system, which is described by state equations. Then the laboratory model of Ball on the wheel system and its parts are described. The laboratory model consists servo drive, servo amplifier, microcontroller with real-time operating system and distance sensors. In the practical part of the thesis there is designed control of system by linear quadratic regulator and its implementation with control peripherals into microcontroller with real-time operating system. Ball on the wheel system is controlled by microcontroller, which sends a commands to servo amplifier by CAN bus.
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Possibilities of data analysis from CAN bus
Krišková, Mahulena ; Pančík, Juraj (referee) ; Belák, Michal (advisor)
This Master’s thesis covers possibilities of data collection and data analysis from CAN. Historical background and current trends are described as well as the principle of operation. The aim of this thesis was to provide several methods of data reading and subsequently their possible ways of interpretation for purposes of Forensic Engineering, more precisely, in the terms of vehicle driving dynamics. Owing to the fact the messages on the CAN bus are themselves encoded, one is unable to read them without further decryption. However, the possibilities of decoding are limited. Individual methods of data reading, collection, and analysis are presented. The analysis is focused on the process of data collection form CAN bus and data decryption. From several software options, one was selected as a tool for experimental part.
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Modular control system
Novotný, Jan ; Fiedler, Petr (referee) ; Benešl, Tomáš (advisor)
The work deals with design of electronics for modular control system and all the necessary attributes. In the general part the reader are acquaints with the issues of industrial control systems and describes their functionality. It also describes the communication buses and protocols used in the industrial data transmission and describes real-time operating systems (RTOS). In the practical part, the master thesis deals with the design of its own modular control system consisting of several modules. The modular control system uses its own communication protocol to exchange data between the individual modules. Various possibilities of using this modular control system are discussed.
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Test equipment for set-up of animation light functions
Holinka, David ; Vysloužil, Ondřej (referee) ; Hejátková, Edita (advisor)
This work deals with creating equipment for testing animation light function. This device would allow display animation in any color and disposition. The equipment will consist of hardware and software. Hardware will constitute printed circuit boards. One of them will be called Master board, and other PCB will be called Led board. These PCB are connected by connectors and communication will provide by CAN bus. By using of PC application will be able to program and download animations and play them on LED boards.
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The robotic system state indicator
Kovaľová, Alžbeta ; Kubíček, Michal (referee) ; Šotner, Roman (advisor)
This bachelor thesis deals with the design and creation of a status indicator for robotic system developed in Y Soft. Part of this work is the design and implementation of communication between the status indicator and the superior device testing system. A printed circuit board is designed and constructed, and then a microcontroller is programmed and the CAN bus communication is implemented. Subsequently, the device is integrated into the company system for robotic testing, where its functionality is verified.
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Data buses in the automotive industry
Plíšek, Marek ; Míša, Jiří (referee) ; Zháňal, Lubor (advisor)
The topic of the bachelor thesis is data buses in cars. The aim of the work is to describe data buses and compare their key properties and functional parameters. Sources for bus comparison are drawn from domestic and foreign sources. The work brings a complete comparison of all commonly used data buses: CAN, LIN, FlexRay, MOST, Ethernet. The output of the analysis is a clear table of properties and parameters of buses with a description of their advantages and disadvantages. The work is supplemented by a reflection on the future development of communication systems in cars.
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Analysis of the communication between car's electronic control units
Zouhar, Štěpán ; Matějásko, Michal (referee) ; Spáčil, Tomáš (advisor)
This bachelor thesis has 3 basic parts. In the first part is the main topic testing stand which was made for purpose of developing and testing electronic devices for cars. The next part deals with communication on the CAN bus and interface between tools CANoe and Simulink for simulation purposes of ECU‘s (Electronic Control Unit) behaviour. At the end were created 2 examples: one for CANoe and the second one for interface between CANoe and Simulink.
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