Live Demonstration: Human Body Communication Health Monitoring System Using Flexible Substrate

Qi Huang, Abeer AlAmoudi, Abdulkadir Celik, Ahmed Eltawil

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

Abstract

We demonstrate the design and functionality of a flexible, miniaturized, ultra-low power, and affordable health monitoring system enabling continuous monitoring of individuals' health metrics, a.k.a. a wireless body area network (WBAN). To date, the most commonly-used means of communication for WBAN modules has been based on Radio Frequency (RF) communications. Though they significantly facilitated human healthcare monitoring, they require complex, power-hungry, RF front ends. As an alternative, we design our system to communicate utilizing human body communication (HBC), which has inherent physical layer security and enhanced overall energy efficiency. The live demo presents a vital signal monitoring system based on point-to-point HBC communication. Fig. 1 illustrates the transmitter and receiver diagrams and PCB boards respectively. The transmitter comprises a microcontroller, an oscillator, an on-off-keying (OOK) modulator, and signal/ground electrodes. A 3.7 V lithium-ion battery with a 3.3 V output low dropout regulator (LDO) powers the whole system. The receiver first detects the envelope of the received signal and slices it to binary digits by comparing the input signal with its average level extracted by low-pass filtering. Interested readers can find full details at [1], where the system has shown an energy efficiency of 8.3 nJ/b at a data rate of up to 1.3 Mbps.
Original languageEnglish (US)
Title of host publication2023 IEEE International Symposium on Circuits and Systems (ISCAS)
PublisherIEEE
DOIs
StatePublished - Jul 21 2023

Fingerprint

Dive into the research topics of 'Live Demonstration: Human Body Communication Health Monitoring System Using Flexible Substrate'. Together they form a unique fingerprint.

Cite this