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The remote access to vital sign measurements like pulse rate (PR) and breathing rate (BR) of a patient to doctors and family members makes it much more helpful in patient risk analysis. Texas Instruments AWR1642 frequency modulated continuous wave (FMCW) radar operates at 77–81 GHz frequency with 4 GHz sweep bandwidth for linear frequency modulated (LFM) waveform. In the literature, AWR1642 is used to determine a person's PR and BR in an offline mode. In this paper, the AWR1642 radar module is integrated with Raspberry Pi 4 Model B (Pi4B), and a network connection is established using SIM7600G-H 4G HAT and accessed through TeamViewer software. For this experiment, we have considered ten males and ten females in the age group of 19–52 years and 18–29 years, respectively. The male and female attendees' average PR is 84.84bpm and 79.9965bpm, respectively. The male and female attendees' average BR is 18.408bpm and 16.526bpm, respectively. Ground truth data is gathered from a fingertip pulse oximeter(PO) to verify our readings of PR and BR. The overall absolute mean error (AME) of PR and BR compared to the PO data is 0.6430 % and 4.2595% for the 20 volunteers who participated in the experiment.
Dayananda et al. (Thu,) studied this question.
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