Model jakosti električnog polja na površini ljudskog tijela uz kretanje bežične endoskopske kapsule

master's thesis

• Title (english): Study of Human Body Surface Electric Field with Wireless Endoscopic Capsule Movement
• Author: Bojan Lukovac
• Mentor: Dina Šimunić (mentor)
• Committee member: Dina Šimunić (predsjednik povjerenstva)
• Committee member: Krešimir Malarić (član povjerenstva)
• Committee member: Dragan Jevtić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2015-07-07, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Izvršen je okviran pregled o endoskopiji i endoskopiji bežičnom kapsulom. Pobrojani su zahtjevi, preduvjeti, metode i prepreke lokalizacije bežične endoskopske kapsule. Odabran je prikladan model antene odašiljača u kapsuli. Antena je modelirana i emulirana u numeričkom elektromagnetskom simulatoru. Izvršene su brojne simulacije prostiranja elektromagnetskih valova s obzirom na okolno tkivo te su prikupljeni i analizirani proračuni jakosti električnog polja i Poyntingovog vektora u, na i u blizini ljudskog tijela. Ponuđena su dva modela gibanja bežične endoskopske kapsule probavnim sustavom zasnovana na mjerenjima kretanja hrane, magneta i slikovnih podataka zabilježenih endoskopskim kapsulama. Prikazan je utjecaj postavljanja antena u razne okoliše na širenje pripadnih elektromagnetskih valova i donesen zaključak o mogućnostima korištenja tih mjerenja za lokalizaciju endoskopskih kapsula.

Abstract (english)

An overview of endoscopy and wireless capsule endoscopy has been conducted. A list of prerequisites, necessities, methods and impediments to wireless capsule localization has been compiled. A suitable antenna model for a capsule transmitter has been selected. The antenna was modeled and emulated in a numerical electromagnetic simulator. Numerous simulations of electromagnetic wave propagation in relation with surrounding tissue have been completed and data on electric field intensity and Poynting vector scale has been gathered inside the human body, as well as on its surface and vicinity. Two motion models for a wireless capsule endoscope were offered, based on measurements of food processing, magnetic motion detection and video data recorded with endoscopic capsules. The impact of the antenna’s positioning within various surroundings on corresponding electromagnetic waves has been shown, and a conclusion on the usability of those measurements for endoscopic capsule localization has been provided.

• Keywords: Endoskopija; bežična endoskopska kapsula; lokalizacija; ljudski probavni sustav; modeli gibanja; električno polje; Poyntingov vektor; Body Area Network
• Keywords (english): Endoscopy; wireless capsule endoscope; localization; human digestive sistem; motion models; electrical field; Poynting vector; Body Area Network
• Language: croatian
• URN:NBN: urn:nbn:hr:168:389192
• Study programme: Title: Information and Communication Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije (magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 10:13:07