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Data Concentrator of 3D Printer's Sensors and Devices
Vaculík, Samuel ; Rusnák, František (referee) ; Arm, Jakub (advisor)
The bachelor thesis consists of designing and implementing a system for collecting data related to 3D printing. The aim is to define the variables suitable for measurement, select sensors for the measurements and implement them on the printer. The next point is the design and implementation of data acquisition from the printing firmware Klipper for collecting print data. Then the task is to implement the software for processing data from the individual measurement sources, including data flow analysis in the system.
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Autonomous unit for growing indoor plants
Pluskal, Petr ; Appel, Martin (referee) ; Věchet, Stanislav (advisor)
This bachelor's thesis focuses on the design and assembly of an autonomous cultivation system for indoor plants in households. Autonomous and efficient cultivation of indoor plants poses a challenge for many home gardeners due to the constant need for care and attention. The thesis discusses the basic requirements and conditions for quality plant growth, such as temperature, soil moisture, air humidity, and lighting. Suitable sensors for measuring these key parameters are selected, and the thesis addresses their integration and implementation into the entire system. The unit's construction is realised using 3D printing, analysing its properties, particularly regarding waterproofing and contact with organic elements. These insights inform the printing of individual parts of the system. Combining printed parts, sensors, and a programmed Arduino system creates a functional autonomous plant cultivation system. Monitored data are directly utilised in the system's code, statistically processed, and visualised using the ThinkSpeak service. Experimental results demonstrate the successful functionality of the system in maintaining optimal conditions for plant growth and development. This autonomous cultivation system represents an innovative solution for simplifying the care of indoor plants in a home environment.
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Low-cost demonstrators for automatic control methods
Malypetr, Matěj ; Kozovský, Matúš (referee) ; Blaha, Petr (advisor)
This work describes the design and subsequent implementation of two tasks for the demonstration of automatic control using an Arduino development board. The control circuit consists of a physical systemsystém with attached actuator, sensor for the measurement of the system’s output and Arduino board as a control unit with automatic feedback controller of PID type. For both demonstrators, parametric model is obtained from measured data using system identification and output filter is designed and implemented. The controller is designed in the environment of MATLAB® Simulink. Simulink support package for Arduino addon enables to automaticaly compile generated code, to program the Arduino board through USB cable and to launch this program in real-time. It is also possible to monitor and calibrate the constants directly through the Simulink scheme.
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Stepper motor driver with feedback for positioning platform
Doležel, Michael ; Král, Vojtěch (referee) ; Barcík, Peter (advisor)
Tato bakalářská práce se zabývá návrhem a stavbou uzavřené regulační soustavy pro výšku a azimut optomechanické platformy. Cílem je porovnat rotační senzory a následně navrhnout kontroler pro krokový motor. Prototyp regulačního systému byl postaven s využitím platformy Arduino, řadiče krokového motoru DRV8825, krokového motoru NEMA-17 a hallového senzoru AEAT-9922 pro měření rotace. Prototyp dokáže otáčet krokovým motorem s rozlišením 0.056°, což je maximální přesnost řadiče DRV8825 při použití mikrokrokování 1/32. Deska finálního řadiče byla přepracována tak, aby zahrnovala rozhraní SPI-4 pro hallový senzor AEAT-9922. Deska obsahuje řadič krokového motoru L6470H s mikrokrokováním 1/128 a má rozlišení 0.014°.
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Autonomous Beehive
Václavič, Jiří ; Nosko, Svetozár (referee) ; Smrž, Pavel (advisor)
The aim of this work was to construct an electronically controlled beehive. A crucial element of the project was to conduct thorough research on existing IoT and other electronic solutions used in beekeeping. It was essential to analyze the available hardware and software technologies that could be applied to the given issue and select those most suitable for this purpose. Based on the acquired knowledge, individual parts of the beehive were designed and manufactured using a 3D printer. These parts were specially modified to enable the integration of various sensors. An integral part of the solution is also the ventilation system and the custom design of motorized beekeeping frames, which allow for automatic honey collection. Sensor outputs and other data needed to inform the beekeeper about the colony's status are displayed on a web server, to which they are sent via MQTT communication.
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Development of a GPS tracking device for the specific needs of a tourist club
Němečková, Karolína ; Věchet, Stanislav (referee) ; Appel, Martin (advisor)
This Bachelor thesis focuses on the development of a GPS tracking device for specific needs of tourist club. First part summarizes available products on the market and technologies which can be used for creating such a device. The second part describes the concept, which outlines the exact function of the transmitter and receiver. It follows by describing selected electronics, printed circuit board design, program implementation and the manufacturing of enclosures. To demonstrate the functionality, tests of wireless communication, discharge characteristics and device consumption are performed.
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Návrh autonomní robotické kolové platformy
LARVA, Jaroslav
The diploma thesis represents the project of design and implementation of an autonomous robotic platform, which is built on the basis of a modified children's buggy, enabling its remote control. The entire project is systematically divided into two basic parts: theoretical and practical. In the theoretical part, the components and software tools used during the project are analyzed in detail. This section provides an overview of current trends in robotics and autonomous systems and highlights the importance of each selected element to the success of the overall design. In the practical part, the work focuses on the development process itself. From the first steps in construction, through the programming of the purchased platform, to a detailed description of the connection and integration of electronic components. Specific attention is paid to technical solutions that overcome the challenges associated with adapting a children's buggy to an autonomous robotic platform. In the final part, the project is evaluated as a whole. It includes an analysis of the achieved results, reflection on possible areas of improvement and discussion of future directions of development.
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Emulation of Character-Based LCD Display Using E-Ink Technology
Rusín, Tomáš ; Strnadel, Josef (referee) ; Šimek, Václav (advisor)
The aim of this bachelor thesis is to design a simple printed circuit board interconnect. The board is planned to be equipped with a microcontroller that will receive communication signals originally intended for LCD character displays. The communication may be parallel or serial, in the form of SPI and I2C type interfaces. These signals are planned to be received and converted to E-Ink display signals. That display will show information in the same format as it was designed for LCD displays. The E-Ink display replaces LCD displays without the need of changing the original library or the original communication interface. This method of replacement is suitable when a LCD character display is destroyed and a suitable replacement cannot be found, or when the E-Ink display is more suitable.
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Effect of acquisition site compression in multisite photoplethysmography
Hofrová, Lucie ; Kolář, Radim (referee) ; Janoušek, Oto (advisor)
The theoretical part of the thesis describes the pulse wave's origin, the principle of photoplethysmography, and the influence of vein compression on the morphology of the photoplethysmograph caused by external pressure during PPG signal measurement. Furthermore, the thesis contains the measurement and analysis of the PPG bilateral signal, which is used for the evaluation of whether there are differences between the PPG signal measured on the left or the right side of the human body. A dataset consisting of 10 volunteers was created for evaluation. The practical part contains the algorithm which analysis the PPG signal. Furthermore, normalization and statistical analysis is performed. The results show that external pressure has an effect on pulse wave width analysis and heart rate. When the pressure is high, the ability of pulse wave analysis is impaired.
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A System for Monitoring Vehicle Fuel Consumption
Lazárek, Zbyněk ; Kolář, Dušan (referee) ; Burget, Radek (advisor)
The aim of this thesis is to create a system that can detect fuel theft from vehicles. The systemconsists of a hardware device located in the monitored vehicles and information systemthat makes it possible to determine when and where the theft occurred. The thesis describesthe components of the hardware device and individual functionalities of the informationsystem.
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