Title: Wireless monitoring and analysis of PPG signal for assessment of cardiovascular system in real time

Authors: B.M. Jayadevappa; Mallikarjun S. Holi

Addresses: Department of Electronics and Instrumentation Engineering, Bapuji Institute of Engineering and Technology, Davangere 577004, Karnataka, India ' Department of Studies in Electronics and Instrumentation Engineering, University B.D.T. College of Engineering, Visvesvaraya Technological University, Davangere 577004, Karnataka, India

Abstract: In the present work a simple, non-invasive and portable electro-optical based wireless real-time PPG monitoring system has been developed. The system can be used for monitoring of patient's health status specially those of disabled and suffering from cardiovascular diseases. It records variations in the volume of blood with each heart beat resulting in the form of signal called photoplethysmogram (PPG). System consists of light source and photo-detector packed in the form of probe, fitted to patient's index finger. For remote monitoring of PPG signals, a ZigBee wireless technology is used. The PPG contain rich information about cardiovascular and respiratory systems. From PPG, parameters like pulse rate (PR), average pulse rate (APR), pulse rate variability (PRV) and frequency spectrum were determined for diagnostic purpose. System monitors the patient's health conditions without restricting their movements, hence can be extended beyond hospital limits. Thus, physician can monitor the patient's health status remotely.

Keywords: sensors; PPG signals; photoplethysmograms; wireless monitoring; ZigBee; pulse rate; pulse oximeter; frequency spectrum; filters; cardiac activity; disabled; heart disease; cardiovascular diseases; real time monitoring; blood volume; heart beats; respiratory system; health status; remote monitoring; patient monitoring.

DOI: 10.1504/IJBRA.2016.075397

International Journal of Bioinformatics Research and Applications, 2016 Vol.12 No.1, pp.47 - 58

Received: 30 Aug 2014
Accepted: 29 Aug 2015

Published online: 19 Mar 2016 *

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