A 75μW real-time scalable network controller and a 25μW ExG sensor IC for compact sleep-monitoring applications

Recently, a wearable body-sensor network realized continuous sleep monitoring by ExG (EEG, EMG, EOG, and ECG) extraction from a sleeper's face. At least 14 sensors were placed on the face, and were managed by a network controller for sleep monitoring. However, the system was too bulky and heavy...

Full description

Saved in:
Bibliographic Details
Main Authors: Seulki Lee, Long Yan, Taehwan Roh, Sunjoo Hong, Hoi-Jun Yoo
Format: Conference Proceeding
Language:English
Subjects:
Clocks
Monitoring
Power demand
Real time systems
Sleep
Tin
Transceivers
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Recently, a wearable body-sensor network realized continuous sleep monitoring by ExG (EEG, EMG, EOG, and ECG) extraction from a sleeper's face. At least 14 sensors were placed on the face, and were managed by a network controller for sleep monitoring. However, the system was too bulky and heavy (127x63.5χ28mnf, 210g) to wear during sleep, and consumed high power (>;100mW). Another system used a CMOS IC sensor for smaller power consumption (5 to 10mW/sensor), but it was still inconvenient to wear due to its cumbersome size (49χ19χ6mnf). This paper presents a 5g sub-500μW compact sleep-monitoring system based on a low-power network controller and ExG sensors, and Planar Fashionable Circuit Board (P-FCB) technology. The entire sleep monitor operates on a 1.5 V 10mAh single tiny coin battery (φ=5.8mm, T=2.1 mm, 200mg) stacked on the controller chip. The power dissipation of 14 sensors and a controller is below 425 μW, which is
ISSN:0193-6530
2376-8606
DOI:10.1109/ISSCC.2011.5746208