Sustav za prikupljanje i obradu biomedicinskih signala na biciklu

master's thesis

• Title (english): System for Acquisition and Processing of Biomedical Signals on a Bicycle
• Author: Patrik Šajinović
• 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 sklopu rada implementiran je sustav za prikupljanje i obradu EKG signala temeljen na integriranom sklopu MAX30001 i mikrokontroleru STM32WB55, s primarnom namjenom bežičnog mjerenja EKG signala s elektroda smještenih na drškama bicikla. Istražena je teorijska pozadina nastanka i interpretacije biomedicinskih signala s naglaskom na elektrokardiogram (EKG) i frekvenciju srčanog ritma (HR). Proučeni su integrirani sklopovi MAX30001 i STM32WB55 te su istraženi komunikacijski protokoli (Bluetooth Low Energy (BLE) i UART) i način pohrane podataka na vanjsku SD karticu. Razvijena je programska potpora sustava korištenjem FreeRTOS operacijskog sustava radi bolje učinkovitosti, organizacije i prenosivosti koda. Dizajnirano je posebno kućište uređaja radi jednostavnijeg upravljanja, prenosivosti i provedbe mjerenja. Unaprijeđena je korisnička aplikacija u Python Qt okviru za lakše upravljanje uređajem i procesom mjerenja. Mjerenja biomedicinskih signala testirana su korištenjem EKG simulatora, a funkcionalnost sustava provjerena je testiranjem na zdravom ispitaniku.

Abstract (english)

In this thesis the system for acquisition and processing of ECG signals, based on MAX30001 integrated circuit and STM32WB55RG microcontroller, was implemented, with a primary purpose of wireless ECG measurements from electrodes placed on a bicycle handlebar. The theoretical background of the generation and interpretation of biomedical signals was elaborated, with an emphasis on the electrocardiogram (ECG) and heart rate (HR). MAX30001 and STM32WB55 integrated circuits were studied, as well as communication protocols (Bluetooth Low Energy (BLE) and UART) and the means of storing data on external SD card. The embedded software was developed by using the FreeRTOS operating system for better efficiency, code organisation, and code portability. A special device enclosure was designed for easier device management, mobility, and execution of tests and measurements. User application was improved by means of Python Qt framework for easier management of the measurement process. Measurements of biomedical signals were tested using an ECG simulator and the functionality of the whole system was validated by tests on a healthy subject.

• Keywords: elektrokardiogram; frekvencija srčanog ritma; EKG; HR; MAX30001; STM32WB55; BLE; FreeRTOS
• Keywords (english): electrocardiogram; heart rate frequency; ECG; HR; MAX30001; STM32WB55; BLE; FreeRTOS
• Language: croatian
• URN:NBN: urn:nbn:hr:168:817916
• 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 10:36:40