A wearable RFID system for real-time activity recognition using radio patterns

Liang Wang, Tao Gu, Hongwei Xie, Xianping Tao, Jian Lu, Yu Huang

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

8 Citations (Scopus)

Abstract

Much work have been done in activity recognition using wearable sensors organized in a body sensor network. The quality and communication reliability of the sensor data much affects the system performance. Recent studies show the potential of using RFID radio information instead of sensor data for activity recognition. This approach has the advantages of low cost and high reliability. Radio-based recognition method is also amiable to packet loss and has the advantages including MAC layer simplicity and low transmission power level. In this paper, we present a novel wearable Radio Frequency Identification (RFID) system using passive tags which are smaller and more cost-effective to recognize human activities in real-time. We exploit RFID radio patterns and extract both spatial and temporal features to characterize various activities. We also address two issues - The false negative issue of tag readings and tag/antenna calibration, and design a fast online recognition system. We develop a prototype system which consists of a wearable RFID system and a smartphone to demonstrate the working principles, and conduct experimental studies with four subjects over two weeks. The results show that our system achieves a high recognition accuracy of 93.6 % with a latency of 5 s.

Original languageEnglish
Title of host publicationMobile and Ubiquitous Systems: Computing, Networking, and Services
Subtitle of host publication10th International Conference, MOBIQUITOUS 2013, Tokyo, Japan, December 2-4, 2013, Revised Selected Papers
EditorsIvan Stojmenovic, Zixue Cheng, Song Guo
Place of PublicationCham, Switzerland
PublisherSpringer, Springer Nature
Pages370-383
Number of pages14
ISBN (Electronic)9783319115696
ISBN (Print)9783319115689
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event10th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services, MOBIQUITOUS 2013 - Tokyo, Japan
Duration: 2 Dec 20134 Dec 2013

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume131
ISSN (Print)1867-8211

Conference

Conference10th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services, MOBIQUITOUS 2013
CountryJapan
CityTokyo
Period2/12/134/12/13

Keywords

  • Activity recognition
  • Real-time
  • Wearable RFID

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