DESIGN OF ENERGY EFFICIENT WEARABLE ECG SYSTEM AND LOW POWER ASYNCHRONOUS MICROCONTROLLER

Abstract

This work is about the design and implementation of energy efficient wearable real time monitoring ECG system and a low power asynchronous 8051 microcontroller for biomedical sensor interface device. It is motivated by the increasing awareness of Cardiac arrhythmias due to population ageing. There are two designs of wearable ECG system in this work. The first design is a Wireless ECG Plaster prototype device. It is designed for real-time monitoring of ECG in cardiac patients. The proposed device is light weight, easily wearable and can wirelessly transmit the patient?s ECG signal to PC using ZigBee. The second design is a Long Playing Cardio Recorder system prototype. The system current consumption could be less than 1.7mA from a 3.7V 650mAH Li-ion battery so it can last for 30 days. A new design asynchronous 8051 Microcontroller is presented. The proposed AMS 0.35?m technology microcontroller consumes about 40 ?W at 1.0V supply.