1. Long-term continuous ambulatory ECG monitor with Beat-to-Beat Heart Rate Measurement in Real Time using ESP32
- Author
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya. ISI - Grup d'Instrumentació, Sensors i Interfícies, Martínez Suárez, Frank, García Limón, José Alberto, Rivera Córdova, Dalila, Flores Nuñez, Laura, Casas Piedrafita, Óscar, Alvarado Serrano, Carlos, Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya. ISI - Grup d'Instrumentació, Sensors i Interfícies, Martínez Suárez, Frank, García Limón, José Alberto, Rivera Córdova, Dalila, Flores Nuñez, Laura, Casas Piedrafita, Óscar, and Alvarado Serrano, Carlos
- Abstract
This work presents a long-term continuous ambulatory ECG monitor for simultaneous acquisition and storage of leads DI, aVF, and V2, and beat-to-beat R wave detection using wavelet transform for heart rate measurement in real-time. The monitor has as its core the low-power ADS1294 analogue front-end of 4 channels, 24-bit analog-to-digital converters and programmable gain amplifiers, the low-power dual-core ESP32 microcontroller, a 32 GB micro SD memory for data storage and a 1.4 in thin-film transistor liquid crystal display (LCD) variant with a resolution of 128 x 128 pixels. The monitor has sampling rates of 1000 Hz, 500 Hz, and 250 Hz, bandwidth from 0 Hz to half the selected sampling rate, a CMRR of -115 dB, a resolution of 286 nV, a current consumption of 50 mA for an average battery life of 84 h, a lead-off detection and a real-time beat-to-beat heart rate measurement., Peer Reviewed, Postprint (published version)
- Published
- 2022