A feasibility study on simultaneous data collection from multiple sensor RF tags with multiple subcarriers

Yuki Igarashi, Yuki Sato, Yuusuke Kawakita, Jin Mitsugi, Haruhisa Ichikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Citations (Scopus)

Abstract

Wireless and battery-less health monitoring of machinery and structures have been a dream in mechanical engi-neering. Particularly, simultaneous data collection from multiple sensors is required to detect failure or malfunction before it becomes fatal problem. In this paper, a concept of simultaneous data collection from multiple sensor RF tags with multiple subcarriers is proposed and its feasibility is examined. To facilitate the inclusion of sensor data in RF tag and to obtain the number of available communication channels, an analog modulation of digitally generated subcarriers is employed. The unavoidable mutual interference among subcarriers, stemming from the pulse shape of subcarrier in RF tags, is eliminated by a swift interference rejection method. We examined the feasibility and the performance of the concept with a two-subcarrier prototype in which the interference rejection is executed in a software defined radio platform. It is shown that the proposed concept is feasible. In order to evaluate the effect of the interference rejection method, we examined the correlation between the original sensor data and the recovered sensor data in a worst case interference environment. It is shown that the correlation coefficient is significantly improved from 0.00 to 0.91.

Original languageEnglish
Title of host publication2014 IEEE International Conference on RFID, IEEE RFID 2014
PublisherIEEE Computer Society
Pages141-146
Number of pages6
ISBN (Print)9781479935871
DOIs
Publication statusPublished - 2014 Jan 1
Event2014 IEEE International Conference on RFID, IEEE RFID 2014 - Orlando, FL, United States
Duration: 2014 Apr 82014 Apr 10

Publication series

Name2014 IEEE International Conference on RFID, IEEE RFID 2014

Other

Other2014 IEEE International Conference on RFID, IEEE RFID 2014
CountryUnited States
CityOrlando, FL
Period14/4/814/4/10

Keywords

  • Multiple subcarriers
  • Sensor RF tags
  • Software Defined Radio

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A feasibility study on simultaneous data collection from multiple sensor RF tags with multiple subcarriers'. Together they form a unique fingerprint.

  • Cite this

    Igarashi, Y., Sato, Y., Kawakita, Y., Mitsugi, J., & Ichikawa, H. (2014). A feasibility study on simultaneous data collection from multiple sensor RF tags with multiple subcarriers. In 2014 IEEE International Conference on RFID, IEEE RFID 2014 (pp. 141-146). [6810724] (2014 IEEE International Conference on RFID, IEEE RFID 2014). IEEE Computer Society. https://doi.org/10.1109/RFID.2014.6810724