A Self-powered Wearable Wireless Sensor System Powered by a Hybrid Energy Harvester for Healthcare Applications

被引：36

作者：

Mohsen, Saeed ^{[1
]}

Zekry, Abdelhalim ^{[1
]}

Youssef, Khaled ^{[2
]}

Abouelatta, Mohamed ^{[1
]}

机构：

[1] Ain Shams Univ, Fac Engn, Cairo, Egypt

[2] Beni Suef Univ, Fac Nav Sci & Space Technol, Cairo, Egypt

来源：

WIRELESS PERSONAL COMMUNICATIONS | 2021年 / 116卷 / 04期

关键词：

Wearable sensor system; Healthcare monitoring; Energy harvesting; Super-capacitors; Photovoltaic (PV); Bluetooth low energy (BLE); NETWORK;

D O I：

10.1007/s11277-020-07840-y

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this paper, a wearable medical sensor system is designed for long-term healthcare applications. This system is used for monitoring temperature, heartbeat, blood oxygen saturation (SpO(2)), and the acceleration of a human body in real-time. This system consists of a temperature sensor, a pulse oximeter sensor, an accelerometer sensor, a microcontroller unit, and a Bluetooth low energy module. Batteries are needed for supplying energy to this sensor system, but batteries have a limited lifetime. Therefore, a photovoltaic-thermoelectric hybrid energy harvester is developed to power a wearable medical sensor system. This harvester provides sufficient energy and increases the lifetime of the sensor system. The proposed hybrid energy harvester is composed of a flexible photovoltaic panel, a thermoelectric generator module, a DC-DC boost converter, and two super-capacitors. Experimentally, in active-sleep mode, the sensor system consumes an average power of 2.13 mW over 1 h and works without the energy harvester for 46 h. Finally, the experimental results illustrate the sustainable and long-term monitoring operation for the medical sensor system.

引用

页码：3143 / 3164

页数：22

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