Development of a Waterproof Cardiography/Accelerogram Device and its Application for Human Health Monitoring

Abstract

In this study, we developed a waterproof cardiography/accelerogram device for human health and activity monitoring. The sensor system consists of a cardiograhy sensor, a tri-axial accelerometer, sensor interface, microcontroller and a RF module. It was coated with Poly dimethyl siloxane ( PDMS ) to achieve a waterproof and patch-type device. The RF module with low power consumption was utilized to transfer the cardiography/accelerogram data from the device to the base station. Static postures and long-term human activity were estimated from the data of cardiography sensor, triaxial accelerometer and other integrated sensors. The details of the system configuration and some measurement examples for human health monitoring are described in this paper.