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Two channel stepper motor controller
Hýbl, Matouš ; Arm, Jakub (oponent) ; Žalud, Luděk (vedoucí práce)
The goal of this thesis is the development of a dual-channel stepper motor controller. Both the development of electronics and software is described. The electronics of the controller is based on the STM32F405 microcontroller, and Trinamic manufactured stepper motor controller ICs. For communication with higher-level systems, the controller utilizes the CANOpen protocol, I\textsuperscript{2}C, and USB buses. The whole electronics was designed in the KiCAD EDA and utilizes a 4-layer PCB and contemporary manufacturing technologies. As for the software, both firmware and control software were developed. Both of these pieces of software utilize the Rust programming language, which focuses on memory safety, performance and provides useful zero-cost abstraction. The Secondary goal of this thesis is to show how the language can be utilized for low-level embedded software development. The firmware of the controller implements independent motion control for each of the axes with both velocity and position control and provides failsafe mechanisms for cases of communication failures. The controller is meant to be used by the Robotics and AI research group and by students of the DCI, FEEC BUT.
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Communication in Mobile Robotics
Hýbl, Matouš ; Jílek, Tomáš (oponent) ; Žalud, Luděk (vedoucí práce)
The goal of this thesis is to provide insight into ways of improving communication links used in mobile robotics, specifically in field robotics. First, the electromagnetic spectrum is studied in order to provide information about what frequencies can be used. Digital modulations are described as well as they greatly influence link's behavior in presence of noise. Furthermore, various ways of enhancing communication links are described alongside with ideas about their use and implementation. A communication subsystem based on MikroTik routers suitable for field robotics robots is designed and developed. This communication subsystem is capable of retranslation and has hardware required for implementation of redundant communication link based on LTE. Revival of Orpheus HOPE robot is then described. The robot is equipped with a new control unit firmware, the communication subsystem and is renamed to Orpheus CT. A simple system suitable for measuring communication link properties is developed and tested. The system for measuring link properties is then evaluated during two experiments. One experiment is dedicated to testing of retranslation capabilities of the communication subsystem. Evaluation of experiment results shows that the measurement system works and that the communication subsystem is suitable for implementation into real field robots.
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Design And Development Of A Handheld Robot Controller With Telepresence Capabilities
Hýbl, Matouš
This paper describes the design and development of a prototype of a handheld controller that should be used to remotely control a robot during a field/service robotics mission. The controller is equipped with a touch screen display, that shows a video feed from robot’s cameras and its status information, joysticks and buttons for controlling the robot and also an ethernet port for connecting external communication interfaces. Broken out HDMI and USB ports are used to connect an AR (Augumented Reality)/VR(Virtual Reality) headset with a head movement sensor, thus allowing for telepresence in the field . The secondary aim of the paper is to evaluate the Rust programming language in terms of directly interfacing hardware.
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Using Ryze Tello Uavs In Multi-Robot Systems
Hýbl, Matouš
This paper describes ways of integrating Ryze Tello UAVs (Unmanned Aerial Vehicles) with existing robotic systems. The main focus of this paper is the creation of bridging software and hardware that allows connecting of multiple drones to the robotic system while allowing for both video feed streaming and UAV control. The secondary focus of this paper is a proof of usability of the Rust programming language in robotic applications.
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Two channel stepper motor controller
Hýbl, Matouš ; Arm, Jakub (oponent) ; Žalud, Luděk (vedoucí práce)
The goal of this thesis is the development of a dual-channel stepper motor controller. Both the development of electronics and software is described. The electronics of the controller is based on the STM32F405 microcontroller, and Trinamic manufactured stepper motor controller ICs. For communication with higher-level systems, the controller utilizes the CANOpen protocol, I\textsuperscript{2}C, and USB buses. The whole electronics was designed in the KiCAD EDA and utilizes a 4-layer PCB and contemporary manufacturing technologies. As for the software, both firmware and control software were developed. Both of these pieces of software utilize the Rust programming language, which focuses on memory safety, performance and provides useful zero-cost abstraction. The Secondary goal of this thesis is to show how the language can be utilized for low-level embedded software development. The firmware of the controller implements independent motion control for each of the axes with both velocity and position control and provides failsafe mechanisms for cases of communication failures. The controller is meant to be used by the Robotics and AI research group and by students of the DCI, FEEC BUT.
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Communication in Mobile Robotics
Hýbl, Matouš ; Jílek, Tomáš (oponent) ; Žalud, Luděk (vedoucí práce)
The goal of this thesis is to provide insight into ways of improving communication links used in mobile robotics, specifically in field robotics. First, the electromagnetic spectrum is studied in order to provide information about what frequencies can be used. Digital modulations are described as well as they greatly influence link's behavior in presence of noise. Furthermore, various ways of enhancing communication links are described alongside with ideas about their use and implementation. A communication subsystem based on MikroTik routers suitable for field robotics robots is designed and developed. This communication subsystem is capable of retranslation and has hardware required for implementation of redundant communication link based on LTE. Revival of Orpheus HOPE robot is then described. The robot is equipped with a new control unit firmware, the communication subsystem and is renamed to Orpheus CT. A simple system suitable for measuring communication link properties is developed and tested. The system for measuring link properties is then evaluated during two experiments. One experiment is dedicated to testing of retranslation capabilities of the communication subsystem. Evaluation of experiment results shows that the measurement system works and that the communication subsystem is suitable for implementation into real field robots.
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