Bežični sustav za bioimpedancijsku analizu sastava ljudskog tijela temeljen na integriranom sklopu AFE4300

master's thesis

• Title (english): Wireless System for Bioimpedance Analysis of the Human Body Composition Based on the AFE4300 Integrated Circuit
• Author: Antonio Bandur
• Mentor: Hrvoje Džapo (mentor)
• Committee member: Hrvoje Džapo (predsjednik povjerenstva)
• Committee member: Željka Lučev Vasić (član povjerenstva)
• Committee member: Dinko Oletić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2023-07-14, Croatia

Abstract

U ovom diplomskom radu provedeno je istraživanje teorijske osnove bioimpedancije, kao i analiza i usporedba različitih metoda bioimpedancijske analize sastava ljudskog tijela. U tu svrhu razvijen je nosivi sustav za bioimpedancijsku analizu sastava ljudskog tijela na četveroslojnoj tiskanoj pločici dimenzija 50 x 68 mm. Sustav se temelji na integriranom sklopu AFE4300. Kako bi se omogućila bežična komunikacija s drugim uređajima, integriran je bežični modul STM32WB5MMG koji podržava Bluetooth Low Energy sučelje. Nadalje, implementirana je programska potpora u programskom alatu STM32CubeIDE koja omogućuje sustavu provođenje višefrekvencijske bioimpedancijske analize i bioimpedancijske spektroskopije. Dodatno, na osobnom računalu, korištenjem programskog jezika Python 3, razvijena je ispitna okolina za potrebe uhodavanja sustava, provedbe mjerenja i vizualizacije rezultata. Laboratorijska mjerenja su provedena koristeći gel i tekstilne elektrode. Izmjereni podaci su zatim obrađeni u programskom alatu MATLAB. Performanse razvijenog sustava su uspoređene s referentnim sustavom za mjerenje impedancije SFB7 ImpediMed. Dobiveni rezultati pokazuju korelaciju veću od 95% između referentnog i razvijenog sustava u procjeni ukupne tjelesne tekućine i praćenju promjena tekućine.

Abstract (english)

In this master's thesis, research was conducted on the theoretical foundations of bioimpedance, as well as the analysis and comparison of different methods of bioimpedance analysis of human body composition. For this purpose, a wearable system for bioimpedance analysis of human body composition was developed on a four-layer printed circuit board with dimensions of 50 x 68 mm. The system is based on the integrated AFE4300 circuit. In order to enable wireless communication with other devices, a wireless module STM32WB5MMG, which supports Bluetooth Low Energy interface, was integrated. Furthermore, software was developed in the STM32CubeIDE programming tool, enabling the system to perform multi-frequency bioimpedance analysis and bioimpedance spectroscopy. Additionally, a desktop test environment for system calibration, measurement implementation, and result visualization was developed using Python 3 programming language. Laboratory measurements were performed using gel based and textile electrodes. The measured data was then processed using MATLAB software tool. The performance of the developed system was compared to a reference impedance measurement system, SFB7 ImpediMed. The obtained results show a correlation of over 95% between the reference and the developed system in estimating total body fluid and tracking fluid changes.

• Keywords: bioimpedancijska analiza; bioimpedancijska spektroskopija; nosivi sustavi; STM32WB5MMG; Bluetooth Low Energy; AFE4300; mjerenje tjelesnog sastava
• Keywords (english): Bioimpedance Analysis; Bioimpedance Spectroscopy; Wearable Devices; STM32WB5MMG; Bluetooth Low Energy; AFE4300; Body Composition Measurement
• Language: croatian
• URN:NBN: urn:nbn:hr:168:429349
• 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: 2023-10-11 08:21:34