Investigation on Smart Cushion Based on SFS Structure and its Application in Physiological and Activity Monitoring

Shuying Han, Wei Xu, Shanhong You, Bo Dong, Fengze Tan, Changyuan Yu, Wei Zhao, Yishan Wang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


A smart cushion based on SFS (single-mode-few-mode-single-mode) structure is proposed and experimentally demonstrated, which can be applied in physiological and activity states monitoring simultaneously. The sensing unit embedded in a common cushion is designed as a sandwich structure, consisting of a piece of fiberglass mesh, a SFS structure layer and a polyvinyl chloride (PVC) layer thus the sensitivity can be significantly enhanced. With off-line processing and analyzing of the raw signals collected from the cushion system, the heartbeat rate (HR) and respiratory rate (RR) can be obtained with the maximum error of 1 bpm and the activity states on the cushion can be clearly distinguished within the accuracy of one second. Such a smart cushion has the advantages of low cost, compact structure and high comfort, especially suitable for office workers and the elderly in nursing homes.

Original languageEnglish
Title of host publication25th Opto-Electronics and Communications Conference, OECC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728154459
Publication statusPublished - 4 Oct 2020
Event25th Opto-Electronics and Communications Conference, OECC 2020 - Taipei, Taiwan
Duration: 4 Oct 20208 Oct 2020

Publication series

Name25th Opto-Electronics and Communications Conference, OECC 2020


Conference25th Opto-Electronics and Communications Conference, OECC 2020


  • activity monitoring
  • optical fiber sensors
  • smart cushion
  • vital signs

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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