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Journal Article Wearable Personal Network Based on Fabric Serial Bus Using Electrically Conductive Yarn
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Authors
Hyung Sun Lee, Choong Bum Park, Kyoung Ju Noh, John Sunwoo, Hoon Choi, Il-Yeon Cho
Issue Date
2010-10
Citation
ETRI Journal, v.32, no.5, pp.713-721
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.10.1510.0084
Project Code
09MC2200, Wearable Personal Companion for u-Computing Collaboration, Cho Il Yeon
Abstract
E-textile technology has earned a great deal of interest in many fields; however, existing wearable network protocols are not optimized for use with conductive yarn. In this paper, some of the basic properties of conductive textiles and requirements on wearable personal area networks (PANs) are reviewed. Then, we present a wearable personal network (WPN), which is a four-layered wearable PAN using bus topology. We have designed the WPN to be a lightweight protocol to work with a variety of microcontrollers. The profile layer is provided to make the application development process easy. The data link layer exchanges frames in a master-slave manner in either the reliable or best-effort mode. The lower part of the data link layer and the physical layer of WPN are made of a fabric serial-bus interface which is capable of measuring bus signal properties and adapting to medium variation. After a formal verification of operation and performances of WPN, we implemented WPN communication modules (WCMs) on small flexible printed circuit boards. In order to demonstrate the behavior of our WPN on a textile, we designed a WPN tutorial shirt prototype using implemented WCMs and conductive yarn. © 2010 ETRI.
KSP Keywords
Basic properties, Best Effort(BE), Communication module, Conductive yarn, Data Link Layer, Electrically conductive, Flexible Printed Circuit, Formal Verification, Master-slave, Personal Area Network, Physical Layer