Solar micro-power system for self-powered wireless sensor nodes

2008 ◽  
Author(s):  
Yongtai He ◽  
Yangqiu Li ◽  
Lihui Liu ◽  
Lei Wang
Keyword(s):  
Power System ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Micro Power ◽  
Self Powered

Light and Pressure Sensors Based on PVDF With Sprayed and Transparent Electrodes for Self-Powered Wireless Sensor Nodes

2019 ◽  
Vol 19 (3) ◽  
pp. 1114-1126 ◽  
Author(s):  
Marco Bobinger ◽  
Sherif Keddis ◽  
Stefan Hinterleuthner ◽  
Markus Becherer ◽  
Fabian Kluge ◽  
...  
Keyword(s):  
Pressure Sensors ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Transparent Electrodes ◽  
Wireless Sensor Nodes ◽  
Self Powered

A High Efficiency Solar PV Micro-Power Supply Integrated with Wireless Sensor Nodes

2013 ◽  
Vol 401-403 ◽  
pp. 495-499 ◽  
Author(s):  
Yong Tai He ◽  
Li Xian Xiao
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
Power Supply ◽  
Sensor Nodes ◽  
Utilization Efficiency ◽  
Wireless Sensor ◽  
Solar Pv ◽  
Wireless Sensor Nodes ◽  
Micro Power ◽  
Cell Arrays

In the wireless sensor nodes integrated with the solar PV micro-power supply, the solar energy conversion efficiency and utilization efficiency directly determine working life and stability of the wireless sensor nodes. Thus, a novel solar PV micro-power supply is designed which four solar cell arrays with same open voltage are designed and they are placed in top and three sides of the wireless sensor nodes. Simultaneous, the optimal voltage control technology is used to control work voltage of four solar cell arrays in the design. In addition, the prototype of wireless sensor node integrated with the solar PV micro-power supply is done. Moreover, the working characteristics of the prototype are tested in natural condition. The working voltages of four solar cell arrays are controlled in range of optimal voltage, and the solar cell arrays have high conversion efficiency. The output energy of system is increased about 50% by adding side solar cell arrays.

scholarly journals A Hybrid Microenergy Storage System for Power Supply of Forest Wireless Sensor Nodes

Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1409 ◽  
Author(s):  
Huamei Wang ◽  
Wenbin Li ◽  
Daochun Xu ◽  
Jiangming Kan
Keyword(s):  
Power Supply ◽  
Storage System ◽  
Input Power ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Ultra Low Power ◽  
Hybrid Energy ◽  
Total Input ◽  
Self Powered

Wireless sensor nodes (WSNs) are widely used in the field of environmental detection; however, they face serious power supply problems caused by the complexity of the environmental layout. In this study, a new ultra-low-power hybrid energy harvesting (HEH) system for two types of microenergy collection (photovoltaic (PV) and soil-temperature-difference thermoelectric (TE)) was designed to provide stable power to WSNs. The power supply capabilities of two microenergy sources were assessed by analyzing the electrical characteristics and performing continuous energy data collection. The HEH system consisted of two separated power converters and an electronic multiplexer circuit to avoid impedance mismatch and improve efficiency. The feasibility of the self-powered HEH system was verified by consumption analysis of the HEH system, the WSNs, and the data analysis of the collected microenergy. Taking the summation of PV and TEG input power of 1.26 mW (PPV:PTEG was about 3:1) as an example, the power loss of the HEH system accounted for 33.8% of the total input power. Furthermore, the ratio decreased as the value of the input power increased.

scholarly journals Harvesting Ambient Environmental Energy for Wireless Sensor Networks: A Survey

2014 ◽  
Vol 2014 ◽  
pp. 1-20 ◽  
Author(s):  
Gongbo Zhou ◽  
Linghua Huang ◽  
Wei Li ◽  
Zhencai Zhu
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Alternative Energy ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Power Sources ◽  
Limited Life ◽  
Great Progress ◽  
Self Powered

In recent years, wireless sensor networks (WSNs) have grown dramatically and made a great progress in many applications. But having limited life, batteries, as the power sources of wireless sensor nodes, have restricted the development and application of WSNs which often requires a very long lifespan for better performance. In order to make the WSNs prevalent in our lives, an alternative energy source is required. Environmental energy is an attractive power source, and it provides an approach to make the sensor nodes self-powered with the possibility of an almost infinite lifetime. The goal of this survey is to present a comprehensive review of the recent literature on the various possible energy harvesting technologies from ambient environment for WSNs.

scholarly journals A Nonlinear Electromagnetic Energy Harvesting System for Self-Powered Wireless Sensor Nodes

2019 ◽  
Vol 8 (1) ◽  
pp. 18 ◽  
Author(s):  
Kankan Li ◽  
Xuefeng He ◽  
Xingchang Wang ◽  
Senlin Jiang
Keyword(s):  
Energy Harvesting ◽  
Electromagnetic Energy ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Interface Circuit ◽  
Electromagnetic Energy Harvesting ◽  
Energy Harvesting System ◽  
Self Powered ◽  
Nonlinear Interface

The Internet of things requires long-life wireless sensor nodes powered by the harvested energy from environments. This paper proposes a nonlinear electromagnetic energy harvesting system which may be used to construct fully self-powered wireless sensor nodes. Based on a nonlinear electromagnetic energy harvester (EMEH) with high output voltage, the model of a nonlinear interface circuit is derived and a power management circuit (PMC) is designed. The proposed PMC uses a buck–boost direct current-direct current (DC–DC) converter to match the load resistance of the nonlinear interface circuit. It includes two open-loop branches, which is beneficial to the optimization of the impedance matching. The circuit is able to work even if the stored energy is completely drained. The energy harvesting system successfully powered a wireless sensor node. Experimental results show that, under base excitations of 0.3 g and 0.4 g (where 1 g = 9.8 m·s−2) at 8 Hz, the charging efficiencies of the proposed circuit are 172% and 28.5% higher than that of the classic standard energy-harvesting (SEH) circuit. The experimental efficiency of the PMC is 41.7% under an excitation of 0.3 g at 8 Hz.

Thermoelectric Converters of Human Warmth for Self-Powered Wireless Sensor Nodes

2007 ◽  
Vol 7 (5) ◽  
pp. 650-657 ◽  
Author(s):  
Vladimir Leonov ◽  
Tom Torfs ◽  
Paolo Fiorini ◽  
Chris Van Hoof
Keyword(s):  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Self Powered ◽  
Thermoelectric Converters
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