A Method for Estimating State of Charge in Energy-Aware Wireless Sensor Nodes

Giada Giorgi, Andrea Veronese, Luca Corradini
Abstract:
The estimation of the Lithium-Ion battery State of Charge in a sensor node represents a challenging problem. The methods currently proposed in literature are mainly devoted to characterized the state of charge in portable electronic devices; however, their implementation in sensor nodes results to be unfeasible, both for the energy consumption and for the computational complexity. In this paper we will present a method for estimating the battery State of Charge, mainly based on a virtual implementation of the Coulomb Counting method, that aims to overcome some of the drawbacks of the existing methods and to fulfill the more stringent requirements presented by a sensor node.
Keywords:
wireless sensor node, battery state of charge, energy harvester
Download:
IMEKO-TC4-2013-033.pdf
DOI:
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Event details
IMEKO TC:
TC4
Event name:
TC4 Symposium 2013
Title:
19th IMEKO TC4 Symposium Measurements of Electrical Quantities (together with 17th TC4 IWADC Workshop on ADC and DAC Modelling and Testing)
Place:
Barcelona, SPAIN
Time:
18 July 2013 - 19 July 2013