Paper Info
Title
Wearable Contactless Respiration Sensor Based on Multi-Material Fibers Integrated into Textile.
Abstract
In this paper, we report on a novel sensor for the contactless monitoring of the respiration rate, made from multi-material fibers arranged in the form of spiral antenna (2.45 GHz central frequency). High flexibility of the used composite metal-glass-polymer fibers permits their integration into a cotton t-shirt without compromising comfort or restricting movement of the user. At the same time, change of the antenna geometry, due to the chest expansion and the displacement of the air volume in the lungs, is found to cause a significant shift of the antenna operational frequency, thus allowing respiration detection. In contrast with many current solutions, respiration is detected without attachment of the electrodes of any kind to the user's body, neither direct contact of the fiber with the skin is required. Respiration patterns for two male volunteers were recorded with the help of a sensor prototype integrated into standard cotton t-shirt in sitting, standing, and lying scenarios. The typical measured frequency shift for the deep and shallow breathing was found to be in the range 120-200 MHz and 10-15 MHz, respectively. The same spiral fiber antenna is also shown to be suitable for short-range wireless communication, thus allowing respiration data transmission, for example, via the Bluetooth protocol, to mobile handheld devices.
Year
DOI
Venue
2017
10.3390/s17051050
SENSORS
Keywords
Field
DocType
multi-material fibers,textile biosensor,textile respiration sensor,textile RF (Radio Frequency) communications
Spiral antenna,Spiral,Wireless,Data transmission,Fiber,Respiration rate,Electronic engineering,Center frequency,Engineering,Electrical engineering,Bluetooth
Journal
Volume
Issue
ISSN
17
5.0
1424-8220
Citations 
PageRank 
References 
4
0.54
2
Authors
4
Name
Order
Citations
PageRank
Philippe Guay140.54
Stepan Gorgutsa251.22
Sophie LaRochelle379.52
Younès Messaddeq4126.44