Autonomous Wearable Sensor Nodes With Flexible Energy Harvesting

Toh, Wang Yun; Tan, Yen Kheng; Koh, Wee Song; Siek, Liter

doi:10.1109/jsen.2014.2309900

Cited by 121 publications

(60 citation statements)

References 18 publications

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“…There have therefore been multiple recent demonstrations of commercial photovoltaic REVIEW modules powering wearable health monitoring devices, such as a pulse oximeter wristband including a crystalline silicon solar module along with a battery and supercapacitor, [ 117 ] and fl exible amorphous silicon solar modules wrapped around the arm or wrist powering temperature sensors. [ 146,147 ] There is a great deal of research in the photovoltaics community on low-cost, solution-processable photovoltaic materials such as organics and perovskites, because they can be deposited by printing processes under ambient conditions, reducing the cost per unit area of the solar module. [148][149][150][151][152] Organic solar cells have been integrated with garments, [ 153 ] light sources, [ 154 ] and electrochromic displays, [ 155 ] and their very thin (≈100 nm) active layers and inherent fl exibility has spurred the development of ultrathin solar cells fl exible enough to wrap around a human hair.…”

Section: Power Sourcesmentioning

confidence: 99%

Monitoring of Vital Signs with Flexible and Wearable Medical Devices

et al. 2016

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Advances in wireless technologies, low-power electronics, the internet of things, and in the domain of connected health are driving innovations in wearable medical devices at a tremendous pace. Wearable sensor systems composed of flexible and stretchable materials have the potential to better interface to the human skin, whereas silicon-based electronics are extremely efficient in sensor data processing and transmission. Therefore, flexible and stretchable sensors combined with low-power silicon-based electronics are a viable and efficient approach for medical monitoring. Flexible medical devices designed for monitoring human vital signs, such as body temperature, heart rate, respiration rate, blood pressure, pulse oxygenation, and blood glucose have applications in both fitness monitoring and medical diagnostics. As a review of the latest development in flexible and wearable human vitals sensors, the essential components required for vitals sensors are outlined and discussed here, including the reported sensor systems, sensing mechanisms, sensor fabrication, power, and data processing requirements.

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Section: Power Sourcesmentioning

confidence: 99%

Monitoring of Vital Signs with Flexible and Wearable Medical Devices

et al. 2016

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“…An energy harvesting scheme to feed power continuously to wearable sensors and electronics will make it more attractive and increase the acceptability. A flexible energy harvesting mechanism equipped with an ultralow power management circuit (PMC) specially designed on a flexible PCB to transfer near maximum electrical power from the input solar energy source to store in the supercapacitor for powering the wireless sensor node has been reported [91]. A flexible, robust and light weight antenna can play a significant role in wireless power transmission related to wearable sensors.…”

Section: Energy Harvesting Issues For Wearable Sensorsmentioning

confidence: 99%

Wearable Sensors for Human Activity Monitoring: A Review

2015

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An increase in world population along with a significant aging portion is forcing rapid rises in healthcare costs. The healthcare system is going through a transformation in which continuous monitoring of inhabitants is possible even without hospitalization. The advancement of sensing technologies, embedded systems, wireless communication technologies, nano technologies, and miniaturization makes it possible to develop smart systems to monitor activities of human beings continuously. Wearable sensors detect abnormal and/or unforeseen situations by monitoring physiological parameters along with other symptoms. Therefore, necessary help can be provided in times of dire need. This paper reviews the latest reported systems on activity monitoring of humans based on wearable sensors and issues to be addressed to tackle the challenges.Index Terms-Wearable sensors, smart sensors, sensor networks, wireless sensor networks, body sensor networks, body area networks, activity monitoring, assisted living, smart home, physiological parameters monitoring.1530-437X He is currently a Professor of Sensing Technology with the School of Engineering and Advanced Technology, Massey University, Palmerston North, New Zealand. He has over 25 years of teaching and research experiences.His fields of interest include sensors and sensing technology, instrumenta-

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“…Fig. 11 shows a wireless body sensor prototype with energy harvesting unit placed on the arms for distributed biometric monitoring [52]. The system is based on a solar energy source to store the harvested energy in a super capacitor using photovoltaic (PV) panels for powering the wireless sensor node.…”

Section: Towards Self-powered Sensingmentioning

confidence: 99%

“…11. Autonomous sensor nodes (a) PV energy harvesting sensor node [52]; (b) RF energy harvesting WISP sensor node [132].…”

Section: Towards Self-powered Sensingmentioning

confidence: 99%

Body Sensor Networks: In the Era of Big Data and Beyond

Poon

Yuce

et al. 2015

IEEE Rev. Biomed. Eng.

116

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Body sensor networks (BSN) have emerged as an active field of research to connect and operate sensors within, on or at close proximity to the human body. BSN have unique roles in health applications, particularly to support real-time decision making and therapeutic treatments. Nevertheless, challenges remain in designing BSN nodes with antennas that operate efficiently around, ingested or implanted inside the human body, as well as new methods to process the heterogeneous and growing amount of data on-node and in a distributed system for optimized performance and power consumption. As the battery operating time and sensor size are two important factors in determining the usability of BSN nodes, ultralow power transceivers, energy-aware network protocol, data compression, on-node processing, and energy-harvesting techniques are highly demanded to ultimately achieve a self-powered BSN.

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Autonomous Wearable Sensor Nodes With Flexible Energy Harvesting

Cited by 121 publications

References 18 publications

Monitoring of Vital Signs with Flexible and Wearable Medical Devices

Monitoring of Vital Signs with Flexible and Wearable Medical Devices

Wearable Sensors for Human Activity Monitoring: A Review

Body Sensor Networks: In the Era of Big Data and Beyond

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