A Self-Powered Wearable Device using the Photovoltaic Effect for Human Heath Monitoring

Vishal Gyanchandani, Sayed Nahiyan Masabi, Hailing Fu

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

2 Citations (Scopus)

Abstract

Wearable monitors have revolutionized the healthcare industry with help of non-invasive measurement technologies. However, the adoption of these vital monitors faces challenges such as high-power consumption and limited battery lifetime. In this paper, to overcome these challenges, a self-powered wearable monitoring system is designed, integrated, and experimentally validated. The system includes a photovoltaic panel (PV), a DCDC converter, supercapacitors, a pulse sensor, an accelerometer, a microcontroller unit and a Bluetooth module to extract critical physiological parameters, including heart rate, oxygen saturation, activity of daily living and deliver wireless data access to a mobile device. A theoretical model of the energy balance model was established to realize the balance between the energy harvesting capability and sensing power consumption. In an experimental study, a 50 F supercapacitor stored 430 J in 4 hours (29.9 mW) using a PV energy harvester at 500 W/m2, which allows the sensor system (power consumption 5mW) to run sustainably for 24 h.

Original languageEnglish
Title of host publication2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages60-63
Number of pages4
ISBN (Electronic)9781665422185
DOIs
Publication statusPublished - 2021
Externally publishedYes
Event20th IEEE International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2021 - Exeter, United Kingdom
Duration: 6 Dec 20218 Dec 2021

Publication series

Name2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2021

Conference

Conference20th IEEE International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2021
Country/TerritoryUnited Kingdom
CityExeter
Period6/12/218/12/21

Keywords

  • Bluetooth Low Energy
  • Energy balance model
  • Heart rate sensor
  • Photovoltaic panel
  • Self-powered wearable devices

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