Sustav za prikupljanje i obradu senzorskih podataka o fizičkoj aktivnosti temeljen na platformi ESP32 C3

master's thesis

• Title (english): System for acquisition and processing of physical activity sensor data based on ESP32 C3 platform
• Author: Leon Kranjčević
• Mentor: Hrvoje Džapo (mentor)
• Committee member: Hrvoje Džapo (predsjednik povjerenstva)
• Committee member: Željka Lučev Vasić (član povjerenstva)
• Committee member: Darko Vasić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2023-07-07, Croatia

Abstract

Proučene su metode i komercijalno dostupni uređaji za prikupljanje podataka o fizičkoj aktivnosti i fizioloških veličina s primjenom u sportu. Odabrani su odgovarajući sklopovski elementi i programske tehnologije za implementaciju cjelovitog rješenja. Za mjerenje srčanog ritma odabran je senzor Polar H10, koji predstavlja de facto industrijski standard u sportskim primjenama. Za prikupljanje podataka o tjelesnoj aktivnosti odabran je IMU senzor temeljen na integriranom sklopu ICM-20948. Kao osnova za sklopovski dio prototipa sustava odabran je mikrokontroler ESP32-C3 te su za njega razvijene potrebne programske komponente (WiFi, BLE, pohrana podataka na SD karticu, MQTT servis, višezadaćno okruženje pod operacijskim sustavom FreeRTOS). Za povezivanje mikrokontrolera s drugim sustavima korišten je cloud servis AWS IoT i MQTT broker. Za upravljanje sustavom, prikupljanje, analizu, pohranu i vizualizaciju podataka razvijena je aplikacija za desktop i mobilne platforme (Linux, Android) korištenjem programskog okvira Flutter. Svi elementi sustava uspješno su povezani u cjelinu i validirani u stvarnom okruženju usporedbom s referentnim sustavima.

Abstract (english)

Methods and off-the-shelf devices for monitoring physical activity and physiological parameters in sports applications were studied. The most appropriate hardware modules and software technologies for implementation of a complete solution were selected. Polar H10 sensor was chosen for heart rate measurement since it is de facto industry standard in sports applications. IMU sensor based on the ICM-20948 integrated circuit was selected for physical activity monitoring. The microcontroller ESP32-C3 was chosen as the core of the hardware part of the system prototype and all necessary software components were developed (WiFi, BLE, SD card data storage, MQTT service, multitasking environment under the FreeRTOS). AWS IoT cloud service and MQTT broker were used to interface microcontroller with other external systems. User application for managing the sensor, analysis, storage and visualization of sensor data, was developed for desktop and mobile platforms (Linux, Android) using Flutter framework. All elements of the system have been successfully integrated and validated in a real environment by comparing the results with reference systems.

• Keywords: mjerenje srčanog ritma; ESP32-C3; Polar H10; IMU; ICM-20948; WiFi; BLE; MQTT; Flutter
• Keywords (english): Heart rate measurement; ESP32-C3; Polar H10; IMU; ICM-20948; WiFi; BLE; MQTT; Flutter
• Language: croatian
• URN:NBN: urn:nbn:hr:168:076588
• Study programme: Title: Computing; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka računarstva (magistar/magistra inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-10-11 09:24:44