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THE POSSIBILITY OF APPLYING DIFFERENTIAL DIGITAL HOLOGRAPHS IN QUALITY CONTROL
No full textOva disertacija predlaˇze i prouˇcava novu metodu DDH koja
snimanjem holograma trodimenzionalnog objekta i obradom i analizom
dvodimenzionalne snimke moˇze detektirati razlike izmed¯u referentnog objekta
bez oˇste´cenja i objekta s nepoznatim oˇste´cenjem.
U disertaciji je pokazano da se obrada i analiza rezultata moˇze obaviti
na hologramima snimljenih objekata ili na razlikama holograma objekta
bez oˇste´cenja s hologramom objekta s nepoznatim oˇste´cenjem. Ako
se analiza obavlja na razlikama holograma otklanja se negativan utjecaj
praˇsine koja je normalna pojava u proizvodnim industrijskim postrojenjima.
Metoda je tehniˇcki opravdana zbog razmjerne pristupaˇcnosti mjerne
opreme potrebne za realizaciju navedenih pokusThis dissertation proposes and investigates a novel method called
DDH (Differential Digital Holography) which uses hologram recording of a threedimensional
object and by further processing and analysing of its two-dimensional
recording detects differences between reference object without defects and an object
with an unknown defect.
It has been shown that the data processing and result analysis can be applied
both on recorded object holograms and on differences of holograms of objects without
defects and holograms of objects with an unknown defect. When the analysis is
applied on difference holograms the negative influence of dust, which is a regular
accurance in industrial processes, is removed.
The method is technicaly justified due to relative low-cost measuring equipment
needed for conducting experiments
MODEL OF EQUIPMENT MAINTENANCE IN STANDARD PRODUCTION ENVIRONMENT
No full textOdržavanje prema stanju elektroenergetskog sustava zahtjevan je i složen zadatak. Uključuje donošenje odluka na temelju analize nekoliko desetaka atributa. Odluke se donose na temelju podataka koji u sebi sadrže određenu količinu nesigurnosti, kvalitativnih ocjena i numeričkih podataka. Sve podatke, koji se prikupljaju uz pomoć za to posebno namijenjene mjerne opreme, daljinskog očitavanja ili od strane zaposlenika, potrebno je na odgovarajući način pripremiti i pridružiti im odgovarajuće značenje.
U ovom radu predstavljena je višerazinska analiza temeljena na Dampster – Shaffer teoriji evidencijskog zaključivanja kao podrška prilikom donošenja odluka o mjestu i trenutku intervencije prema promatranom energetskom sustavu, a sve u svrhu postizanja maksimalne efikasnosti. Unaprijeđeni algoritam evidencijskog zaključivanja implementiran je u posebno razvijenu aplikaciju za proračun ukupnog stanja postrojenja. Model i analiza podataka kao i interpretacija dobivenih rezultata prikazani su na primjeru prijenosne transformatorske stanice i segmenta sustava za prijenos električne energije.Condition Based Maintenance (CBM) is part of the “on demand” response of the plant. Unlike other plant responses it contains a large amount of uncertain information, qualitative and numerical data. Distributed unmanned plants like electric power distribution network add to this task the demand for possibly uninterrupted users’ service. The only reliable data are on–line data from the distribution network: transformer stations and switchyards.
A multilevel condition evaluation framework is proposed for support of decision analysis on where to intervene in the system in order to ensure maximum system efficiency. Intelligent system monitoring is supplied with central knowledge processing and essential use of expert heuristics for detection of questionable maintenance scenarios.
Results of CBM decomposition and analysis of transmission power station and transmission power system segment are presented
Mobile Android application for flexible purchase of products based on recommendation system
No full textU ovom završnom radu osmišljena je i isprogramirana Android mobilna aplikacija za kupovinu
namirnica zasnovana na preporukama. Napravljena je u programskom okruženju Android Studio
gdje je korišten Kotlin programski jezik za funkcionalnost, a za dizajn opisni jezik XML.
Aplikacija omogućuje registraciju korisnika kako bi njegove alergije ostale zapamćene. Uz pomoć
alergena u proizvodu i korisnikovih alergija aplikacija prepoznaje je li skenirani proizvod
potencijalno opasan za zdravlje korisnika te ga o tome obavještava. Po završetku skeniranja svih
proizvoda korisnik generira završi QR kod koji predstavlja račun svih skeniranih proizvoda.In this Bachelor's thesis I deal with the design and programming of Android mobile application
for grocery shopping based on recommendations. It was made in the Android Studio software
environment where Kotlin programming language was used for functionality and the descriptive
language XML was used for design. The application allows users to register so that their allergies
are remembered. With the help of the allergen in the product and the user's allergies, the application
recognizes whether the scanned product is potentially dangerous to the user's health and notifies it
accordingly. Upon completion of scanning of all products, the user generates a complete QR code
representing the account of all scanned products.
Keywords: allergens, allergies, android mobile application, barcode, shop, QR cod