Power Management in Autonomous Optical Sensor Nodes

  • Uliana DudkoEmail author
  • Ludger Overmeyer
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 95)


Solar cells are the most common energy scavengers due to their ease of use, reliability and wide range of applications wherever the light is present. One of such applications is a wireless autonomous sensor network, where each sensor node tends to be as small as possible. In this paper, we describe a way to optimize the optical energy harvesting process using as an example a power management IC BQ25570. We introduce an approach to calculate the minimal solar cell area and storage capacitance, which are necessary to supply the module in the active mode for a specified time period and to minimize the charging time.


Energy harvesting Solar cell Autonomous sensor node Visible light combination Power management 



This work was financially supported by the Lower Saxony Ministry for Science and Culture, Germany, within the framework of “Tailored Light” project.


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© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Institute for Transport and Automation TechnologyLeibniz University HannoverHannoverGermany

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