Research Article
A Headphone-Based Heart Rate and Heart Rate Variability Monitoring Unit
@INPROCEEDINGS{10.1007/978-3-031-28725-1_13, author={Gashaye Lewtie Hailu}, title={A Headphone-Based Heart Rate and Heart Rate Variability Monitoring Unit}, proceedings={Artificial Intelligence and Digitalization for Sustainable Development. 10th EAI International Conference, ICAST 2022, Bahir Dar, Ethiopia, November 4-6, 2022, Proceedings}, proceedings_a={ICAST}, year={2023}, month={3}, keywords={Photoplethysmography (PPG) Pulse rate Reflectance Transmittance Massachusetts Institute of Technology (MIT)) App inventor Infrared sensor Signal conditioning circuit Filters}, doi={10.1007/978-3-031-28725-1_13} }- Gashaye Lewtie Hailu
Year: 2023
A Headphone-Based Heart Rate and Heart Rate Variability Monitoring Unit
ICAST
Springer
DOI: 10.1007/978-3-031-28725-1_13
Abstract
The Heart Rate (HR) is detected using the Reflectance Photoplethysmography (PPG) Technique, which is a non-invasive approach for measuring changes in blood volume in tissue using an appropriate light source and detector. This study presents a new headphone-based Heart Rate and Heart Rate Variability (HRV) monitoring device. The system is portable and built into conventional headphones. Because the device is built into the headphone, the HR and HRV are recorded without causing any disruption or inconvenience to the person wearing it. The captured data is wirelessly transferred to and displayed on a cell phone through Bluetooth communication. In this work, an android interface was developed and used to show data obtained in the form of beats per minute (BPM) using the MIT App Inventor 2 Bluetooth connectivity application. The device is powered by 5 V by the Intex Wireless Roaming Headset, which contains two AAA batteries that provide 1.5 V each. Because the headphone only provides 3 V, we need a DC-DC Boost Converter Step Up Module 1–5 V to 5 V 500 mA to provide the appropriate supply voltage to the system. Tests on various persons utilizing the prototype system built demonstrated the scheme’s usefulness. Data from eight friends were used in the assessment study. The accuracy of the heart rate measuring device was evaluated with(- 0.5 \pm 2.13 \,{\text{BPM}})as a tolerance during the normal resting period using the standard device “WEAL Pulse Oximeter Fingertip” manufactured by WEAL.
