Sustav za automatsko optičko očitanje mjernog uređaja realiziran ugradbenim računalom

undergraduate thesis

• Title (english): Embedded System for Automatic Optical Meter Reading
• Author: Marin Bralić
• Mentor: Davor Petrinović (mentor)
• Committee member: Davor Petrinović (predsjednik povjerenstva)
• Committee member: Tomislav Petković (član povjerenstva)
• Committee member: Igor Mijić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017-09-08, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Sustav za automatsko očitavanje izveden je ugradbenim računalom Raspberry Pi 3 (sa
UNIX operacijskim sustavom) i standardnom web kamerom spojenom na USB port
računala. Programska potpora sastoji se od ‘bash’ skripte i glavnog programa za
očitavanje: Python skripte. Program prolazi kroz nekoliko koraka: okidanje slike i
pokretanje programa za očitavanje (‘bash’ skripta), te predobrada, lociranje znamenki i
očitavanje znamenki (Python skripta). Sustav periodično okida slike i očitava brojeve te ih
ispisuje na terminal. Frekvencija okidanja slike je podesiva. Sustav funkcionira samo za
sedam segmentne pokaznika te zahtjeva instaliranu potporu na računalu: Python
interpreter i OpenCV biblioteka koja sadrži funkcije za obradu slike.

Abstract (english)

System for automatically sensing is carried out by embedded computer Raspberry Pi
3 (with UNIX operating system) and standard web cam connected to computer USB
port. Software consists of 'bash' script and main sensing program: Python script.
Program goes through several steps: picture triggering and launching sensing
program ('bash' script), pretreatment, locating digits and sensing digits (Python
script). System periodically triggers pictures and senses numbers which are then
printed on the terminal. The picture triggering frequency is adjustable. The System
functions only for seven segment pointing devices and requires installed computer
support : Python interpreter and OpenCv library which contains functions for picture
editing.

• Keywords: ugradbeni; sustav; automatsko; optičko; očitavanje; opencv; raspberry
• Keywords (english): embedded; system; automatic; optical; reading; opencv; raspberry
• Language: croatian
• URN:NBN: urn:nbn:hr:168:876257
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-13 19:17:12