Naslov
Extending Lifetime of Battery Operated Wireless Sensor Node With DC-DC Switching Converter

Autori
Oletić, Dinko ; Ražov, Tomislav ; Bilas, Vedran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the International Instrumentation and Measurement Conference, I2MTC 2011 / Yan, Yong ; Dyer, Ruth - Piscataway (NJ) : Institute of Electrical and Electronics Engineers (IEEE), 2011, 1024-1028

ISBN
978-1-4244-7934-4

Skup
International Instrumentation and Measurement Conference, I2MTC 2011

Mjesto i datum
Hangzhou, Kina, 10.05.2011. - 12.05.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
wireless sensor node; power-supply; DC-DC switching converter; DC-DC output voltage control; battery lifetime

Sažetak
In this paper we study lifetime extension of a wireless sensor node operated from primary battery through a DC-DC switching converter. The node was developed in course of the environmental monitoring project MasliNET. A step-up switching converter is needed to drain the battery when its voltage drops below the operating voltage of the node. In order to minimize the losses caused by the DC-DC converter it is important to shut it down whenever possible and keep the difference between its input and output voltage low. We have developed a controllable power-supply unit and a dynamic control algorithm that manages the use and the output voltage of the DC-DC converter based on the current node’s task requirements and the battery state. We have experimentally verified the solution by comparing it to the node permanently operated from a fixed output voltage DC-DC converter. It has been shown that the proposed power-supply design and the control algorithm prolong battery lifetime as much as 30 %.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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