Kontrolni podsustav ugradbenog računala za obradu podataka u CubeSat nanosatelitu

undergraduate thesis

• Title (english): Control Subsystem of Embedded Computer for Data Processing in CubeSat Nanosatellite
• Author: Borna Blažević
• Mentor: Hrvoje Džapo (mentor)
• Committee member: Hrvoje Džapo (predsjednik povjerenstva)
• Committee member: Dinko Oletić (član povjerenstva)
• Committee member: Zrinka Topić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2020-07-14, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Razvoj kontrolnog podsustava za CubeSat nanosatelit podrazumijeva ograničenja i zahtjeve na sklopovlje i programsku potporu. Potreba za točno definiranim karakteristikama sklopovlja (ograničeni radni napon, ograničena potrošnja snage itd.) i strogom obradom pogrešaka u programskoj potpori neki su od zahtjeva koji omogućavaju dugotrajni rad satelita. U sklopu ovog rada prikazana su osnovna obilježja CubeSat nanosatelita, istraženi su i navedeni zahtjevi i ograničenja na sklopovlje i programsku potporu pri razvoju kontrolnog podsustava za CubeSat nanosatelit te je prikazano razvojno okruženje koje se pokazalo korisno za vrijeme razvoja kontrolnog podsustava, uz svoje prednosti i nedostatke. Istraženi su načini zadovoljavanja zahtjeva i ograničenja kroz osmišljavanje programske potpore koja podržava mogućnost udaljene nadogradnje programske potpore kontrolnog podsustava. Osmišljena je i implementirana zaštita komunikacije za vrijeme izvršavanja udaljene nadogradnje programske potpore. U sklopu rada razložena je potreba za testiranjem svih funkcionalnosti CubeSat nanosatelita za vrijeme i nakon razvoja te su osmišljeni i implementirani testovi onih funkcionalnosti koje su obrađene u ovom radu.

Abstract (english)

The development of a control subsystem for CubeSat nanosatellite implies limitations and requirements on hardware and software support. The need for precisely defined hardware characteristics (limited operating voltage, limited power consumption etc.) and strict error handling throughout the software are some of the requirements that enable the long-term operation of satellites. This paper presents the basic features of CubeSat nanosatellite, investigates the requirements and limitations of hardware and software in the development of the control subsystem for CubeSat nanosatellite, and presents the development environment that proved useful during the development of the control subsystem, along with its advantages and disadvantages. This paper explores the ways how to meet the requirements and limitations through the design of control subsystem software with remote upgrade feature implemented. The secure communication for remote software upgrade was designed and implemented. The paper explains the need for testing of all CubeSat nanosatellite functionalities during and after development and defines the tests which were designed and implemented for the functionalities covered in this paper.

• Keywords: CubeSat; nanosatelit; satelit; QEMU; FreeRTOS; kontrolni podsustav; pokretački program; udaljena nadogradnja programske potpore
• Keywords (english): CubeSat; nanosatellite; satellite; QEMU; FreeRTOS; control subsystem; bootloader; remote firmware upgrade
• Language: croatian
• URN:NBN: urn:nbn:hr:168:333106
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-14 08:29:48