DocumentCode :
3187574
Title :
Design issues for energy harvesting enabled wireless sensing systems
Author :
Kawahara, Yoshihiro ; Lakafosis, Vasileios ; Sawakami, Yoshiki ; Nishimoto, Hiroshi ; Asami, Tohru
Author_Institution :
Univ. of Tokyo, Tokyo, Japan
fYear :
2009
fDate :
7-10 Dec. 2009
Firstpage :
2248
Lastpage :
2251
Abstract :
Key technologies for the deployment of Wireless Sensor Networks are reduction of manufacturing and management cost. Even though many efforts have been made to reduce the price, size and power consumption of each sensor node, many architectural issues remain unsolved. We are developing a Wireless Sensor Networks platform relying on energy harvesting technologies. Solar cell is one of the most attractive power harvesters for Wireless Sensor Networks. However, when a solar cell is used in real environment, there are considerable variations of the amount of energy depending on the place. Our preliminary experiment shows that a solar cell placed at the window side of the office environment produced energy 100 times more than the one placed under the desk did. This large difference results from the locality of the environmental energy and thus there is a limitation to solve such a problem just with improvement of software. Instead, we are trying to fill these issues by the architectural design of the system and coordination of the nodes. In this paper, we show a concept of an energy transfer scheme which will be required to fill the energy differences between wireless sensor nodes.
Keywords :
cost reduction; energy harvesting; power consumption; solar cells; wireless sensor networks; energy harvesting technologies; energy transfer scheme; environmental energy; management cost reduction; power consumption; power harvesters; solar cell; wireless sensor network; Batteries; Computer networks; Computerized monitoring; Costs; Design engineering; Energy exchange; Photovoltaic cells; Physics computing; Power engineering and energy; Wireless sensor networks; Energy Harvesting; Wireless Power Transfer; Wireless Sensor Networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
Type :
conf
DOI :
10.1109/APMC.2009.5385431
Filename :
5385431
Link To Document :
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