Browsing by Author "Ilbis, Erik, supervisor"

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Design and implementation of prototype firmware for ESTCube-2 primary communication subsystem
(Tartu Ülikool, 2018) Amor, Erik; Dalbinš, Janis, supervisor; Ilbis, Erik, supervisor; Tartu Ülikool. Loodus- ja täppisteaduste valdkond; Tartu Ülikool. Tehnoloogiainstituut
This thesis is focused on software development for the primary communications system of ESTCube-2 nanosatellite. The goals are to describe and document the architecture of the systems software, develop primary prototype software and test it in different cenarios. The system must be compatible with previously agreed standards, developed communication system hardware and other subsystems of the satellite. As part of this bachelor’s thesis, top and low level functionality of ESTCube-2 communication system was stated and implemented, including data handling, data transmission, communication with other subsystems, error handling and logging.
Developing hardware for the ESTCube-2 star tracker
(Tartu Ülikool, 2019) Laks, Jürgen; Ilbis, Erik, supervisor; Tartu Ülikool. Loodus- ja täppisteaduste valdkond; Tartu Ülikool. Tehnoloogiainstituut
In English: Star trackers are used on satellites for accurate attitude determination. This thesis focuses on developing and testing the hardware for the ESTCube-2 star tracker prototype. The workflow consisted of selecting suitable components, creating a schematic and a PCB layout, assembling and testing the hardware. The created hardware can take images with an image sensor and transmit the image data to a computer. Some software was written to ease the testing of the hardware. The software allows users to control power buses, update the FPGA configuration, configure the image sensor and view the captured images from a personal computer. The created hardware serves as a basis for future software development and the creation of the flight model of the ESTCube-2 star tracker. Eesti keeles: Tähejälgijaid kasutatakse satelliitide täpse asendi määramiseks. Käesolev bakalaureusetöö kirjeldab ESTCube-2 tähejälgija prototüübi riistvaraarendust ning selle testimist. Töö käigus valiti sobivad komponendid, koostati elektriskeem ja trükkplaadi disain, koostati ja testiti tähejälgija riistvara. Loodud seade on võimeline tegema pildianduriga pilte ja väljastama pildiinfot arvutisse. Riistvara testimiseks loodud tarkvara laseb arvutist lülitada tähejälgijal sisse/välja toitepingeid, uuendada FPGA konfiguratsiooni, konfigureerida pildiandurit ning laseb vaadata pildianduri tehtud pilte. Loodud riistvara on aluseks tulevasele tarkvaraarendusele ja tähejälgija lennumudeli valmistamisele.
Development of ESTCube-2 side panels
(Tartu Ülikool, 2018) Parelo, Aleksander; Ilbis, Erik, supervisor; Ehrpais, Hendrik, supervisor; Tartu Ülikool. Loodus- ja täppisteaduste valdkond; Tartu Ülikool. Tehnoloogiainstituut
This thesis covers the design of ESTCube-2 nanosatellite sidepanels, the thesis focuses mainly on the design and testing of two side panel components: Sun sensors and magnetorquers. Rest of the side panel design is covered in less detail. The main goals of this work are to develop and test the magnetorquer electronics, the magnetic coils and to develop software for and test the Sun sensor. In this work an overview of ESTCube-2 and the side panels is given, then side panel requirements are set. Based on these requirements two modules for the side panels are developed and tested. The Sun sensors requirements are set, then a prototype sensor is presented that is based on these requirements. The software is developed, and the prototype sensor is tested in an optics laboratory to verify that they meet the requirements. Requirements are set for the coils and the coil driving electronics and designs are developed based on these requirements. The magnetorquers are tested to verify the designs.
Multichannel battery testing system
(Tartu Ülikool, 2018) Raedov, Juhan; Ilbis, Erik, supervisor; Tartu Ülikool. Loodus- ja täppisteaduste valdkond; Tartu Ülikool. Tehnoloogiainstituut
This thesis focuses on the hardware and software development of a battery testing system capable of concurrently testing eight single cell Li-ion or Li-Po rechargeable batteries while providing overvoltage, undervoltage and temperature protection. The battery testing system can log test measurements onto an SD card, which provides a computer independent backup. The battery testing system is computer controllable: the software allows changing various parameters, creating customized test scenarios and shows live plots during tests. When a test ends a conclusive plot will be shown. The system’s supported observable battery parameters are voltage, current, temperature and the amount of electric charge/discharge.