Proceedings ArticleDOI
A Flexible, Low Noise Reflective PPG Sensor Platform for Ear-Worn Heart Rate Monitoring
James A.C. Patterson,Douglas C. McIlwraith,Guang-Zhong Yang +2 more
- pp 286-291
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TLDR
A novel ear-worn reflective photoplethysmography (PPG) sensor that addresses the mechanical complexities of coupling the sensor to the surface of the skin and a detection circuit that minimises ambient noise artefacts is presented.Abstract:
This paper presents a novel ear-worn reflective photoplethysmography (PPG) sensor that addresses the mechanical complexities of coupling the sensor to the surface of the skin and a detection circuit that minimises ambient noise artefacts. The flexible optoelectronic transducer structure can adapt to a variety of skin surface contours. Light emitting diode (LED) modulation and a unique integrating photocurrent demodulator reduce susceptibility to wideband noise and allow subtraction of ambient light from the desired PPG signal. Experimental results demonstrate that the sensitivity is robust to sensor location and application pressure variations. Simulations also show that the photodetection method is resilient against high levels of wideband noise.read more
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Journal ArticleDOI
A review of wearable sensors and systems with application in rehabilitation.
Shyamal Patel,Shyamal Patel,Hyung-Kyu Park,Paolo Bonato,Paolo Bonato,Leighton Chan,Mary M. Rodgers,Mary M. Rodgers +7 more
TL;DR: In this paper, a review of wearable sensors and systems that are relevant to the field of rehabilitation is presented, focusing on health and wellness, safety, home rehabilitation, assessment of treatment efficacy, and early detection of disorders.
Journal ArticleDOI
Wearable Photoplethysmographic Sensors—Past and Present
TL;DR: A review of wearable pulse rate sensors with green LEDs can be found in this paper. But, the authors do not discuss the application of these sensors in the medical field. But, they briefly present the history of wearable PPG and recent developments in wearable pulse-rate sensors.
Journal ArticleDOI
Unobtrusive Sensing and Wearable Devices for Health Informatics
Yali Zheng,Xiaorong Ding,Carmen C. Y. Poon,Benny Lo,Heye Zhang,Xiao-Lin Zhou,Guang-Zhong Yang,Ni Zhao,Yuan-Ting Zhang +8 more
TL;DR: This paper aims to provide an overview of four emerging unobtrusive and wearable technologies, which are essential to the realization of pervasive health information acquisition, including: 1) unobTrusive sensing methods, 2) smart textile technology, 3) flexible-stretchable-printable electronics, and 4) sensor fusion.
Journal ArticleDOI
Wearable Flexible Sensors: A Review
TL;DR: This paper categorizes the work on wearable flexible sensors according to the materials used for designing the system, the network protocols, and different types of activities that were being monitored.
Journal ArticleDOI
A Survey on Activity Detection and Classification Using Wearable Sensors
TL;DR: This is one of the first surveys to provide such breadth of coverage across different wearable sensor systems for activity classification, and found that these single sensing modalities laid the foundation for hybrid works that tackle a mix of global and local interaction-type activities.
References
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Book
Body sensor networks
TL;DR: The aim of the BSN is to provide a truly personalised monitoring platform that is pervasive, intelligent, and effective in patients with chronic diseases such as heart disease.
Journal ArticleDOI
Artifact-resistant power-efficient design of finger-ring plethysmographic sensors
TL;DR: benchmarking tests with FDA-approved PPG and electrocardiogram reveal that the ring sensor is comparable to those devices in detecting beat-to-beat pulsation despite disturbances, and designed and built based on the power budget analysis and the artifact-resistive attachment method.
Journal ArticleDOI
Noninvasive pulse oximetry utilizing skin reflectance photoplethysmography
Y. Mendelson,B.D. Ochs +1 more
TL;DR: The results from a series of in vivo studies to evaluate a prototype skin-reflectance pulse oximeter in humans are presented, showing locally heating the skin is shown to increase the pulsatile component of the reflected photoplethysmograms.
Journal ArticleDOI
Spectrophotometric monitoring of arterial oxygen saturation in the fingertip
I Yoshiya,Y. Shimada,Tanaka K +2 more
TL;DR: The instrument has been useful in monitoring arterial oxygenation in patients with respiratory failure in the authors' intensive-care unit and the reproducibility was assessed in a healthy subject by measuring the oxygen saturation repeatedly 60 times.