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System for Support of Short-Term Car Rentals Based on Carsharing
Vrtal, Petr ; Bidlo, Michal (referee) ; Šimek, Václav (advisor)
The aim of this thesis is to create a system for the transformation of an ordinary passenger car into a vehicle capable of sharing in the form of short-term loans. Vehicle rentals are completely unattended, which was achieved by implementing service applications in the form of an administration and user tool. The administrative application was created using web technologies, primarily Next.js and React. The customer application was implemented with the goal of high portability, and therefore its development was directed to mobile platforms using the React Native framework and the Expo tool. The vehicle is equipped with its own designed IoT end device in the form of a printed circuit board, capable of permanent wireless connection to the network based on LTE-M technology and MQTT protocol. The purpose of this device is to provide current vehicle data obtained by reading communication on the CAN bus, connecting to a standard OBD-II diagnostic port. An important part of the work was the execution of a series of tests of all sub-aspects of the implemented architecture, focusing mainly on reliability, resulting functionality and user-friendliness. The resulting system was tested in real operation and represents a way of non-invasively transforming a regular passenger car into a car capable of sharing.
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Object Detection on the i.MX RT Microcontroller
Kravchuk, Marina ; Rozman, Jaroslav (referee) ; Janoušek, Vladimír (advisor)
This work focuses on the use of machine learning, particularly convolutional neural networks, in industrial applications. The course of work involves investigating the implementation of these networks directly on embedded devices, specifically NXP i.MX RT microcontrollers. During the course of the study, materials related to the training and use of neural networks and their optimization for deployment on low power devices were reviewed. Several neural network models were trained and tested, the best of which was used in the final version of the application. The application itself is divided into two parts: one part is written in C/C++ in the MCUXpresso IDE, where the main functionality of the program is implemented, while the other part of the work, i.e. the creation of a graphical user interface to control the program, is done in Python. The result is a functional application for the MIMXRT1170-EVK microcontroller that is able to detect and recognize small colored objects of certain shapes from a predefined data set.
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Extensible Rust Library for the Development of Embedded Sensor Applications on ESP32 Platform
Mikhailov, Kirill ; Tinka, Jan (referee) ; Šimek, Václav (advisor)
Tato práce představuje rozšiřitelnou knihovnu jazyka Rust určenou pro vestavěné senzorové aplikace na platformě ESP32, která řeší potřebu zjednodušeného vývoje reálných vestavěných systémů v prostředí jazyka Rust na této platformě. Významným přínosem této práce je vývoj uživatelsky přívětivého rozhraní pro správu senzorů. Toto rozhraní umožňuje jednoduchou instalaci, aktivaci a monitorování senzorů, což vyhovuje aplikacím, jako jsou inteligentní domy a automatizace, aniž by vyžadovalo hluboké technické znalosti periferií. Architektura knihovny je pečlivě navržena s ohledem na modularitu a rozšiřitelnost a dodržuje zásady bezpečnosti a efektivity Rustu. Projekt je doprovázen rozsáhlou dokumentací a je zveřejněn na platformě GitHub pod open-source licencí Apache, doplněn unit-testy a příklady použití. V závěru práce je zhodnocena funkčnost knihovny a její případná budoucí vylepšení, která ukazují její praktičnost pro vývojáře vestavných systémů.
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Measuring of System Load in Embedded Linux
Skopal, Jakub ; Korček, Pavol (referee) ; Viktorin, Jan (advisor)
The bachelor thesis describes the quantities which characterize the load of the embedded systems based on the Linux kernel. The library was designed and implemented to observe the load of the system in order to facilitate and unify the observation of individual quantities and their reciprocal coherence. Due to the lack of external dependencies of the library the memory requirements are low. To demonstrate the use of the implemented library, a program was designed which depicts the graphs of measured quantities in real time on a remote computer.
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FPGA Platform with .NET Micro Framework Support
Matyáš, Jan ; Minařík, Miloš (referee) ; Vašíček, Zdeněk (advisor)
The goal of the thesis is to design a development board that may be used for embedded systems prototyping. The board's key parts are an ARM-Cortex-based microcontroller and a FPGA programmable circuit. The platform is designed with .NET Micro Framework support in mind. The thesis contains specifications of the development board, describes the design process as well as the task of .NET Micro Framework porting and the establishment of communication bus between the FPGA and microcontroller circuits. The thesis is concluded by a set of demonstration examples which outline how to develop new applications for the designed platform.
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Access System Controller Supporting More Types of Identification
Havlíček, Lukáš ; Bidlo, Michal (referee) ; Vašíček, Zdeněk (advisor)
This thesis deals with design and implementation of access system control unit supporting more types of identification. Designed system supports identification using access cards MIFARE and detection of Bluetooth Low Energy devices. Device is realised using the ESP32 development board. The display of passage history and system configuration is solved using a web interface, which is provided by a web server running on this device.
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Operating System for Embedded Applications Control
Kolarík, Tomáš ; Strnadel, Josef (referee) ; Šimek, Václav (advisor)
This thesis deals with selection of operating system for embedded control unit of steam sterilizer with color touch screen. Theoretical part of the thesis deals with the architecture of embedded systems and operating systems with focus on process management. In addition, the thesis deals with a device for which the operating system is selected, the reason for its implementation, advantages and disadvantages in the control system. The thesis also contains categorization of operating systems by way of use. Of these, two open source operating systems eCos and FreeRTOS are described more thoroughly. The code of FreeRTOS was modified from GCC compiler to IAR compiler. The last part of the thesis describes architecture and functionality of the created demo application. Using the touch screen and color display, the application enables drawing of color schemes, which can be transferred to a computer using serial communication.
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Implementation of Encryption Algorithms in VHDL Language
Kožený, Petr ; Martínek, Tomáš (referee) ; Kořenek, Jan (advisor)
This thesis deals with design and implementation of AES and DES encryption architectures for embedded systems. Architectures are implemented in VHDL language and design for FPGA technology. The proposed implementations are mapped on the Xilinx Spartan 3 technology. Both architectures are applied in simple ECB (Electronic Codebook) scheme with cache memories. A maximum throughput of design DES architecture 370 Mbps is achived with clock frequency of 104 MHz. The throughput of AES architecture at the maximum clock frequency of 118 MHz is 228 Mbps. Compared to software implementations for embedded systems, we achieve significantly higher throughput for both architectures.
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Robotic Vehicle Using RC Components
Deingruber, Ondřej ; Beran, Vítězslav (referee) ; Zemčík, Pavel (advisor)
This thesis covers the topic of controlling RC servos and constructions of robotic vehicles. The goal is to propose a model of robotic vehicle with RC components and other off the shelf components, 3D printing and demonstrate its capabilities. In the thesis, a mobile robot platform was proposed. It uses a single-board computer together with readily available parts and does not require complicated assembly. An optimization algorithm was used for the design of rack and pinion steering. The result of the thesis is the implementation of a robotic vehicle.
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Deep Neural Networks: Embedded System Implementation
Matěj, Aleš ; Šimek, Václav (referee) ; Mrázek, Vojtěch (advisor)
The goal of this thesis is to firstly design and implement an application for embeddedsystems which will classify MNIST numbers and secondly optimize energy and memoryrequirements of this network. The basics of neural networks, Cortex-M processor cores andembedded devices are described in the theoretical part. Followed by implementation details.Networks learning is done with Python and Theano library on a PC. The network is thenconverted to C for a board STM32F429 Discovery. Last part consist of network optimization,which focuses on convolution, dot product and number representation of weights and biasesof the network.
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