scholarly journals Voltage Regulation and Power Management for Wireless Flow Sensor Node Self-Powered by Energy Harvester With Enhanced Reliability

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 154836-154843 ◽  
Author(s):  
Yushen Hu ◽  
Anxin Luo ◽  
Junlei Wang ◽  
Fei Wang
Keyword(s):  
Power Management ◽  
Sensor Node ◽  
Energy Harvester ◽  
Voltage Regulation ◽  
Flow Sensor ◽  
Self Powered

scholarly journals Self-Powered Devices: Self-Powered Wireless Sensor Node Enabled by an Aerosol-Deposited PZT Flexible Energy Harvester (Adv. Energy Mater. 13/2016)

2016 ◽  
Vol 6 (13) ◽  
Author(s):  
Geon-Tae Hwang ◽  
Venkateswarlu Annapureddy ◽  
Jae Hyun Han ◽  
Daniel J. Joe ◽  
Changyeon Baek ◽  
...  
Keyword(s):  
Sensor Node ◽  
Energy Harvester ◽  
Wireless Sensor ◽  
Wireless Sensor Node ◽  
Self Powered ◽  
Energy Mater

Self-Powered Wireless Sensor Node Enabled by an Aerosol-Deposited PZT Flexible Energy Harvester

2016 ◽  
Vol 6 (13) ◽  
pp. 1600237 ◽  
Author(s):  
Geon-Tae Hwang ◽  
Venkateswarlu Annapureddy ◽  
Jae Hyun Han ◽  
Daniel J. Joe ◽  
Changyeon Baek ◽  
...  
Keyword(s):  
Sensor Node ◽  
Energy Harvester ◽  
Wireless Sensor ◽  
Wireless Sensor Node ◽  
Self Powered

scholarly journals Human Body Heat Based Thermoelectric Harvester with Ultra-Low Input Power Management System for Wireless Sensors Powering

Energies ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3942 ◽  
Author(s):  
Chengshuo Xia ◽  
Daxing Zhang ◽  
Witold Pedrycz ◽  
Kangqi Fan ◽  
Yongxian Guo
Keyword(s):  
Energy Storage ◽  
Energy Harvesting ◽  
Power Management ◽  
Human Body ◽  
Sensor Node ◽  
Energy Harvester ◽  
Input Voltage ◽  
Wireless Sensor ◽  
Thermoelectric Energy ◽  
Power Management System

Energy harvesting (EH) technique has been proposed as a favorable solution for addressing the power supply exhaustion in a wireless sensor node and prolong the operating time for a wireless sensor network. Thermoelectric energy generator (TEG) is a valuable device converting the waste heat into electricity which can be collected and stored for electronics. In this paper, the thermal energy from human body is captured and converted to the low electrical energy by means of thermoelectric energy harvester. The aim of presented work is utilizing the converted electricity to power the related electronic device and to extend the working life of a sensor node. Considering the related characteristics of TEG used for human, a type of a novel power management system is designed and presented to harvest generated electricity. The proposed circuit is developed based on off-the-shelf commercial chips, LTC3108 and BQ25504. It can accept the lowest input voltage of 20 mV, which is more suitable for human thermoelectric energy harvesting. Through experiments, developed energy harvesting system can effectively power the sensor to intermittently transmit the data as well as perform the converted energy storage. Compared to the independent commercial chips applications and other microcontroller-based energy harvesting systems, the designed thermoelectric energy harvester system presents the advantages not only in high energy storage utilization rate but also the ultra-low input voltage characteristic. Since the heat from human body is harvested, therefore, the system can possibly be used to power the sensor placed on human body and has practical applications such as physiological parameter monitoring.

scholarly journals Development and Evaluation of Self-powered Energy Harvester in Wireless Sensor Node for Diagnosis of Electric Power System

2016 ◽  
Vol 25 (5) ◽  
pp. 371-376
Author(s):  
Chang Il Kim ◽  
Young-Hun Jeong ◽  
Ji Sun Yun ◽  
Youn Woo Hong ◽  
Yong-Ho Jang ◽  
...  
Keyword(s):  
Power System ◽  
Electric Power ◽  
Sensor Node ◽  
Energy Harvester ◽  
Electric Power System ◽  
Wireless Sensor ◽  
Wireless Sensor Node ◽  
Self Powered

scholarly journals Electrode and electrolyte configurations for low frequency motion energy harvesting based on reverse electrowetting

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pashupati R. Adhikari ◽  
Nishat T. Tasneem ◽  
Russell C. Reid ◽  
Ifana Mahbub
Keyword(s):  
Energy Harvesting ◽  
Bias Voltage ◽  
Energy Harvester ◽  
Superior Performance ◽  
Maximum Output ◽  
Electrowetting On Dielectric ◽  
External Bias ◽  
Motion Energy ◽  
Ac Current ◽  
Self Powered

AbstractIncreasing demand for self-powered wearable sensors has spurred an urgent need to develop energy harvesting systems that can reliably and sufficiently power these devices. Within the last decade, reverse electrowetting-on-dielectric (REWOD)-based mechanical motion energy harvesting has been developed, where an electrolyte is modulated (repeatedly squeezed) between two dissimilar electrodes under an externally applied mechanical force to generate an AC current. In this work, we explored various combinations of electrolyte concentrations, dielectrics, and dielectric thicknesses to generate maximum output power employing REWOD energy harvester. With the objective of implementing a fully self-powered wearable sensor, a “zero applied-bias-voltage” approach was adopted. Three different concentrations of sodium chloride aqueous solutions (NaCl-0.1 M, NaCl-0.5 M, and NaCl-1.0 M) were used as electrolytes. Likewise, electrodes were fabricated with three different dielectric thicknesses (100 nm, 150 nm, and 200 nm) of Al2O3 and SiO2 with an additional layer of CYTOP for surface hydrophobicity. The REWOD energy harvester and its electrode–electrolyte layers were modeled using lumped components that include a resistor, a capacitor, and a current source representing the harvester. Without using any external bias voltage, AC current generation with a power density of 53.3 nW/cm2 was demonstrated at an external excitation frequency of 3 Hz with an optimal external load. The experimental results were analytically verified using the derived theoretical model. Superior performance of the harvester in terms of the figure-of-merit comparing previously reported works is demonstrated. The novelty of this work lies in the combination of an analytical modeling method and experimental validation that together can be used to increase the REWOD harvested power extensively without requiring any external bias voltage.

scholarly journals Piezoelectric Impact Energy Harvester Based on the Composite Spherical Particle Chain for Self-Powered Sensors

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3151
Author(s):  
Shuo Yang ◽  
Bin Wu ◽  
Xiucheng Liu ◽  
Mingzhi Li ◽  
Heying Wang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Spherical Particle ◽  
Impact Energy ◽  
Energy Harvester ◽  
Composite Particle ◽  
Piezoelectric Energy Harvesting ◽  
Particle Chain ◽  
Piezoelectric Energy ◽  
Self Powered ◽  
Particle Chains

In this study, a novel piezoelectric energy harvester (PEH) based on the array composite spherical particle chain was constructed and explored in detail through simulation and experimental verification. The power test of the PEH based on array composite particle chains in the self-powered system was realized. Firstly, the model of PEH based on the composite spherical particle chain was constructed to theoretically realize the collection, transformation, and storage of impact energy, and the advantages of a composite particle chain in the field of piezoelectric energy harvesting were verified. Secondly, an experimental system was established to test the performance of the PEH, including the stability of the system under a continuous impact load, the power adjustment under different resistances, and the influence of the number of particle chains on the energy harvesting efficiency. Finally, a self-powered supply system was established with the PEH composed of three composite particle chains to realize the power supply of the microelectronic components. This paper presents a method of collecting impact energy based on particle chain structure, and lays an experimental foundation for the application of a composite particle chain in the field of piezoelectric energy harvesting.

scholarly journals A Self-Powered PMFC-Based Wireless Sensor Node for Smart City Applications

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Daniel Ayala-Ruiz ◽  
Alejandro Castillo Atoche ◽  
Erica Ruiz-Ibarra ◽  
Edith Osorio de la Rosa ◽  
Javier Vázquez Castillo
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Sensor Node ◽  
Smart Cities ◽  
Cloud Services ◽  
Environmental Data ◽  
Security And Privacy ◽  
Wireless Sensor ◽  
Ultra Low Power ◽  
Self Powered

Long power wide area networks (LPWAN) systems play an important role in monitoring environmental conditions for smart cities applications. With the development of Internet of Things (IoT), wireless sensor networks (WSN), and energy harvesting devices, ultra-low power sensor nodes (SNs) are able to collect and monitor the information for environmental protection, urban planning, and risk prevention. This paper presents a WSN of self-powered IoT SNs energetically autonomous using Plant Microbial Fuel Cells (PMFCs). An energy harvesting device has been adapted with the PMFC to enable a batteryless operation of the SN providing power supply to the sensor network. The low-power communication feature of the SN network is used to monitor the environmental data with a dynamic power management strategy successfully designed for the PMFC-based LoRa sensor node. Environmental data of ozone (O3) and carbon dioxide (CO2) are monitored in real time through a web application providing IoT cloud services with security and privacy protocols.

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