# Ultra Low-Power System for Remote ECG Monitoring

## TL;DR

This paper presents an ultra low-power remote ECG monitoring system that combines analog and digital signal processing, Bluetooth communication, and cloud analysis, enabling over 20 days of operation with minimal power consumption.

## Contribution

It introduces a comprehensive low-power ECG system with integrated motion artifact removal, Bluetooth data transfer, and cloud-based analysis, advancing remote cardiac monitoring technology.

## Key findings

- Power consumption less than 300 μA
- Device operates over 20 days on a 150mAh battery
- Effective motion artifact removal in analog and digital domains

## Abstract

A complete system solution extracting signals from the patient chest with three leads including motion artifact removal in both analog and digital implementations are described. The resulting ECG signal is transferred via Bluetooth low energy to a mobile phone. Using deep sleep modes, the overall power consumption is less than 300 $\mu$A and the device can operate for more than 20 days using a 150mAh battery. The screening software looks for suspicious traces such as those with missing pulses, tachycardia, bradycardia, etc. The mobile phone software also eliminates any remaining motion artifact. The traces are subsequently processed in detail in a cloud server and to a physicians dashboard for long-term monitoring.