Bežični sustav za praćenje srčanog ritma temeljen na integriranom sklopu MAX86150

master's thesis

• Title (english): Wireless System for Heart Rate Monitoring Based on MAX86150 Integrated Circuit
• Author: Matteo Samsa
• 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 metode i pristupi za određivanje srčanog ritma korištenjem elektrokardiograma i fotopletizmograma. Za potrebe realizacije vlastitog bežičnog nosivog uređaja za mjerenje srčanog ritma proučen je Bluetooth Low Energy (BLE) protokol za bežičnu komunikaciju. Proučene su tehničke značajke i mogućnosti integriranog sklopa MAX86150, koji omogućuje mjerenje srčanog ritma korištenjem elektrokardiograma i fotopletizmograma, te mikrokontrolera STM32WB55, koji ima mogućnost bežične komunikacije putem BLE protokola. U okviru rada razvijen je baterijski napajani uređaj za bežično praćenje srčanog ritma u stvarnom vremenu temeljen na integriranom sklopu MAX86150 i mikrokontroleru STM32WB55. Projektirana je i izrađena tiskana pločica za integrirani sklop MAX86150 namijenjena povezivanju s razvojnom pločicom Nucleo-68, na kojoj se nalazi mikrokontroler STM32WB55RG. Razvijena je programska potpora za mjerni sustav temeljena na FreeRTOS operacijskom sustavu za rad u stvarnom vremenu. Eksperimentalno su ispitani točnost mjerenja i potrošnja sustava.

Abstract (english)

This paper investigates methods and approaches for heart rate monitoring based on the electrocardiogram (ECG) and the photoplethysmogram (PPG). The Bluetooth Low Energy (BLE) protocol was studied for the purpose of the implementation of a custom wireless wearable heart rate monitor. The features and capabilities of the MAX86150 integrated circuit, which enables heart rate monitoring by means of ECG and PPG, and the STM32WB55 microcontroller, which provides BLE connectivity, were studied. A battery-powered device for wireless real-time heart rate monitoring, based on the MAX86150 integrated circuit and STM32WB55 microcontroller, was developed. A printed circuit board (PCB) for the MAX86150 integrated circuit was designed and manufactured, to provide means for easy connection with the Nucleo-68 development board based on the STM32WB55RG microcontroller. Software for the measurement system based on the FreeRTOS operating system was developed. Measurement accuracy and power consumption were experimentally tested.

• Keywords: elektrokardiogram; MAX86150; Bluetooth Low Energy (BLE); STM32WB55; FreeRTOS; operacijski sustav za rad u stvarnom vremenu
• Keywords (english): electrocardiogram; MAX86150; Bluetooth Low Energy (BLE); STM32WB55; FreeRTOS; real-time operating system
• Language: croatian
• URN:NBN: urn:nbn:hr:168:077409
• 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: 2023-01-15 11:11:09