Baterijsko mjerilo snage primljenog signala za mjerenje prijenosne karakteristike sustava za prijenos signala ljudskim tijelom

master's thesis

• Title (english): Battery-Powered Received Signal Strength Meter for Measurement of Transfer Characteristic of Intrabody Communication Systems
• Author: Tomislav Krvavica
• Mentor: Željka Lučev Vasić (mentor)
• Committee member: Željka Lučev Vasić (predsjednik povjerenstva)
• Committee member: Mario Cifrek (član povjerenstva)
• Committee member: Igor Krois (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2020-07-17, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Prijenos signala ljudskim tijelom jedna je od tehnologija za implementaciju bežičnih tjelesnih mreža. U ovom diplomskom radu objašnjena je teorijska podloga potrebna za razumijevanje ovog područja i napravljen je pregled do sada provedenih istraživanja, s posebnim naglaskom na arhitekture prijemnika u sustavima za prijenos signala ljudskim tijelom. Arhitektura sustava za prijenos signala ljudskim tijelom razvijena u sklopu ovog diplomskog rada temelji se na logaritamskom pojačalu AD8310 proizvođača Analog Devices i mikrokontroleru STM32WB55CG proizvođača STMicroelectronics. Uspješno je realizirano baterijski napajano mjerilo snage primljenog signala dimenzija tiskane pločice 4 x 5 cm2 i maksimalne potrošnje od 200 mA te je napisana i programska podrška za akviziciju podataka s izlaza logaritamskog pojačala pomoću ugrađenog analogno digitalnog pretvornika na mikrokontroleru. Funkcionalnost razvijenog sustava je verificirana u dva niza mjerenja te je pokazano da može služiti kao platforma za cijeli niz mjerenja koja se odnose na karakterizaciju prijenosne karakteristike ljudskog tijela kao sustava za prijenos signala ljudskim tijelom.

Abstract (english)

Intrabody communication is one of the technologies for implementing a body area network. In this thesis, a theoretical basis needed for understanding this topic is explained and an overview of the research conducted so far in this field was provided, with special emphasis on the architecture of receivers in intrabody communication systems. The architecture of the intrabody communication system developed as part of this thesis is based on the logarithmic amplifier AD8310 (by Analog Devices) and the microcontroller STM32WB55CG (by STMicroelectronics). A 4 x 5 cm2 battery-powered received signal strength meter with 200 mA maximum consumption was successfully realized, and firmware for data acquisition from logarithmic amplifier output using a built-in analog-to-digital converter on a microcontroller was written. The functionality of the developed system was verified in two series of measurements. It was shown that the system could serve as a platform for a whole series of measurements of the transmission characteristic of intrabody communication systems.

• Keywords: kapacitivna metoda; prijenos signala ljudskim tijelom (IBC); mjerilo snage primljenog signala; logaritamsko pojačalo; Bluetooth
• Keywords (english): capacitive method; intrabody communication (IBC); received signal strength meter; logarithmic amplifier; Bluetooth
• Language: croatian
• URN:NBN: urn:nbn:hr:168:924204
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-13 12:48:46