Bežični sustav za praćenje rada srca i disanja temeljen na integriranom sklopu MAX30001

master's thesis

• Title (english): Wireless System for Heart and Respiration Rate Monitoring Based on MAX30001 Integrated Circuit
• Author: Ivan Vrhoci
• Mentor: Hrvoje Džapo (mentor)
• Committee member: Hrvoje Džapo (predsjednik povjerenstva)
• Committee member: Mario Cifrek (član povjerenstva)
• Committee member: Željka Lučev Vasić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2020-07-10, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U ovom radu istražene su različite metode praćenja rada srca i disanja. Za praćenje rada srca odabran je elektrokardiogram (EKG), a za praćenje ritma disanja mjerenje bioimpedancije. Kompaktni bežični sustav za praćenje rada srca i disanja realiziran je na četveroslojnoj tiskanoj pločici malenih dimenzija, svega 2,5 x 4,1 cm. Uređaj je temeljen na integriranom sklopu MAX30001 koji omogućuje mjerenje EKG-a i bioimpedancije, a bežično povezivanje ostvaruje se putem BLE protokola podržanog ugrađenim STM32WB55 mikrokontrolerom. Kako bi se omogućilo izvršavanje sofisticiranijih algoritama za određivanje frekvencije disanja, uređaj sadrži i inercijski senzor u vidu integriranog sklopa ICM-20948, pomoću kojega se mogu prikupljati podaci o akceleraciji i kutnoj brzini. Uređaj sadrži sklop za punjenje Li-Po akumulatora kako bi ga se lakše moglo koristiti u praktičnim primjenama. Razvijena je programska potpora kojom je ostvareno prikupljanje svih potrebnih podataka s razvijenog uređaja, njihovo slanje putem BLE protokola, primitak na računalo i vizualizacija krajnjem korisniku. Razvijena je Matlab GUI aplikacija kojom se putem USB sučelja mogu birati predodređeni načini rada uređaja i po želji konfigurirati registri pojedinih integriranih sklopova na tiskanoj pločici.

Abstract (english)

In this paper, different methods for heart and respiration rate monitoring were investigated. Electrocardiogram (ECG) was selected for heart rate monitoring, while bioimpedance was chosen for respiration rate monitoring. A compact wireless system for monitoring heart and respiration rate was implemented on a four-layer printed circuit board of small dimensions, only 2.5 x 4.1 cm. The device is based on the integrated circuit MAX30001, which enables the measurement of ECG and bioimpedance, while the wireless connection via the BLE protocol is enabled by means of the embedded STM32WB55 dual-core microcontroller. To enable the development of more sophisticated respiratory rate monitoring algorithms, the device also contains an inertial sensor ICM-20948, which is able to track acceleration and angular velocity. The device includes a Li-Po battery charger to ease its use in practical applications. Developed firmware enables data acquisition from device sensors, data transmission via the BLE protocol, data reception on a computer side, and visualization to the end-user. Matlab GUI application for device control via USB was developed, with capabilities to select predefined device working modes and to configure registers of integrated circuits on the printed circuit board.

• Keywords: praćenje srčanog ritma; praćenje ritma disanja; bežični mjerni sustavi; mjerenje bioimpedancije; EKG; BLE; MAX30001; STM32WB
• Keywords (english): heart rate monitoring; respiration rate monitoring; wireless measurement systems; bioimpedance measurement; ECG; BLE; MAX30001; SMT32WB
• Language: croatian
• URN:NBN: urn:nbn:hr:168:900462
• 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 14:13:34