Home health monitoring system in the sleep

This paper describes a development of health monitoring system that uses a non-invasive type microphone based pressure sensor. The system can estimate the sleep stages from the heartbeats and body motion measured by the sensor. The algorithm for sleep stages estimations as implemented to the single chip microcomputer. The validity of the proposed system is confirmed by comparing the conventional sleep stage estimation results.

1. Introduction

TMedical treatment at home is important key words for keeping the quality life high. Among the medical treatments, the health monitoring is substantially important. The perquisite requirements that the heath monitoring at home should satisfy are (C1) easy in operation, (C2) noninvasive, (C3) stress free in physical and mental, (C4) reasonable price. This paper describes a novel sleep stage estimation equipment that satisfies the above four requirements. The hardware of the equipment is based on the pneumatic microphone senor named air cushion sensor^[1] and the software is based on the sleep estimation method^[2]. The software was implemented in a microprocessor.