Power supply energy optimization for ultra low-power wireless sensor nodes

2013 ◽  
Author(s):  
M. Tanevski ◽  
A. Boegli ◽  
P. Farine
Keyword(s):  
Low Power ◽  
Power Supply ◽  
Energy Optimization ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Ultra Low Power

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.

Ultra Low Power ASIP Design for Wireless Sensor Nodes

2007 ◽  
Author(s):  
Michael De Nil ◽  
Lennart Yseboodt ◽  
Frank Bouwens ◽  
Jos Hulzink ◽  
Mladen Berekovic ◽  
...  
Keyword(s):  
Low Power ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Ultra Low Power

Asynchronous logic application in a power management unit for ultra low power wireless sensor nodes

2011 ◽  
Author(s):  
Gregor Kowalczyk ◽  
Markus Dielacher ◽  
Martin Flatscher ◽  
Josef Prainsack ◽  
Hartwig Unterassinger ◽  
...  
Keyword(s):  
Low Power ◽  
Power Management ◽  
Management Unit ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Ultra Low Power ◽  
Asynchronous Logic ◽  
Power Management Unit
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