A primary motivation of our research is the monitoring of physical, physiological, and biochemical parameters - in any environment and without activity restriction and behaviour modification - through using miniaturised, wireless Body Sensor Networks (BSN). Key research issues that are currently being addressed include novel sensor designs, ultra-low power microprocessor and wireless platforms, energy scavenging, biocompatibility, system integration and miniaturisation, processing-on-node technologies combined with novel ASIC design, autonomic sensor networks and light-weight communication protocols. Our research is aimed at addressing the future needs of life-long health, wellbeing and healthcare, particularly those related to demographic changes associated with an ageing population and patients with chronic illnesses. This research theme is therefore closely aligned with the IGHI’s vision of providing safe, effective and accessible technologies for both developed and developing countries.

Some of our latest works were exhibited at the 2015 Royal Society Summer Science Exhibition.


Citation

BibTex format

@article{Gil:2019:10.3390/s19071616,
author = {Gil, B and Anastasova, S and Yang, GZ},
doi = {10.3390/s19071616},
journal = {Sensors},
pages = {1--17},
title = {A smart wireless ear-worn device for cardiovascular and sweat parameter monitoring during physical exercise: design and performance results},
url = {http://dx.doi.org/10.3390/s19071616},
volume = {19},
year = {2019}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Wearable biomedical technology has gained much support lately as devices have become more affordable to the general public and they can easily interact with mobile phones and other platforms. The feasibility and accuracy of the data generated by these devices so as to replace the standard medical methods in use today is still under scrutiny. In this paper, we present an ear-worn device to measure cardiovascular and sweat parameters during physical exercise. ECG bipolar recordings capture the electric potential around both ears, whereas sweat rate is estimated by the impedance method over one segment of tissue closer to the left ear, complemented by the measurement of the lactate and pH levels using amperiometric and potentiometric sensors, respectively. Together with head acceleration, the acquired data is sent to a mobile phone via BLE, enabling extended periods of signal recording. Results obtained by the device have shown a SNR level of 18 dB for the ECG signal recorded around the ears, a THD value of −20.46 dB for the excitation signal involved in impedance measurements, sweat conductivity of 0.08 S/m at 1 kHz and sensitivities of 50 mV/pH and 0.8 μA/mM for the pH and lactate acquisition channels, respectively. Testing of the device was performed in human subjects during indoors cycling with characteristic level changes.
AU - Gil,B
AU - Anastasova,S
AU - Yang,GZ
DO - 10.3390/s19071616
EP - 17
PY - 2019///
SN - 1424-8220
SP - 1
TI - A smart wireless ear-worn device for cardiovascular and sweat parameter monitoring during physical exercise: design and performance results
T2 - Sensors
UR - http://dx.doi.org/10.3390/s19071616
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000465570700135&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - https://www.mdpi.com/1424-8220/19/7/1616
UR - http://hdl.handle.net/10044/1/83349
VL - 19
ER -