CBL - Campus del Baix Llobregat

Projecte llegit

Títol: Disseny i implementació d'un sistema sense fils per a la monitorització no invasiva de l'activitat cardíaca en sistemes de control d'aeroports

Estudiants que han llegit aquest projecte:

Director/a: CASANELLA ALONSO, RAMON

Departament: EEL

Títol: Disseny i implementació d'un sistema sense fils per a la monitorització no invasiva de l'activitat cardíaca en sistemes de control d'aeroports

Data inici oferta: 29-01-2025     Data finalització oferta: 29-09-2025


Estudis d'assignació del projecte:
    GR ENG SIST AEROESP
Tipus: Individual
 
Lloc de realització: EETAC
 
Paraules clau:
Wireless, Seguretat Aeroports, Activitat Cardíaca
 
Descripció del contingut i pla d'activitats:
A partir del treball previ desenvolupat pels grups de recerca de l'EETAC, es vol treballar sobre un sistema de mesura sense fils dels senyals d'origen mecànic i elèctric provinents del sistema
cardiovascular. Aquest paràmetres es poden adquirir amb sensors col·locats en plataformes de mesura del pes que permeten mesurar-los de manera còmoda i no invasiva i que poden ser fàcilment incorporades en els sistemes de control i seguretat dels aeroports, afegint noves prestacions d'interès en aquest tipus de sistemes. En aquest treball es desenvoluparà un sistema d'adquisició d'aquests senyals mitjançant un microcontrolador (preferentment de baix consum) que posteriorment els enviarà via Bluetooth cap un PC o un smartphone on s'hauran de poder observar i emmagatzemar les dades rebudes.
 
Overview (resum en anglès):
This work presents the development of a system for monitoring cardiac activity, with the aim of applying it in airport security control environments. The main objective is to validate the feasibility of obtaining, in a non-invasive way, the electrical and mechanical signals from the users' hearts (the electrocardiogram (ECG) and the ballistocardiogram (BCG)), to transmit them wirelessly, process them and display them simultaneously and in real time. The entire system has been integrated into a commercial scale, taking advantage of its original structure and sensors.
The system is based on the integration of two analog acquisition circuits, one for the ECG and the other for the BCG, designed to operate with a 3.3 V unipolar power supply and connected to an ESP32 microcontroller. This microcontroller is responsible for digitizing the signals and transmitting them via Bluetooth to a computer, in which a MATLAB program has been developed for the reception, processing and visualization of the data in real time. The software combines digital filters and a peak detection algorithm based on a simplified version of Pan-Tompkins, which allows the instantaneous heart rate to be calculated.
Tests carried out with several users have validated the correct operation of the system, demonstrating the ability to capture ECG and BCG signals with sufficient quality to extract relevant physiological information. The device has an approximate autonomy of 10 hours and a transmission distance of up to 10 meters. The results of the heart rate detection show an average difference of two beats per minute compared to a reference commercial device, which confirms the viability of the prototype.
Finally, a sustainability study has been incorporated that analyzes the project from environmental, economic and social perspectives. The work as a whole demonstrates the viability and potential for application of the system in the environment for which it has been designed, while also proposing possible areas of improvement for future work.

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