SNUPI: sensor nodes utilizing powerline infrastructure

  • Authors:

  • Gabe Cohn;Erich Stuntebeck;Jagdish Pandey;Brian Otis;Gregory D. Abowd;Shwetak N. Patel

  • Affiliations:

  • University of Washington, Seattle, WA, USA;Georgia Institute of Technology, Atlanta, GA, USA;University of Washington, Seattle, WA, USA;University of Washington, Seattle, WA, USA;Georgia Institute of Technology, Atlanta, GA, USA;University of Washington, Seattle, WA, USA

  • Venue:
  • Proceedings of the 12th ACM international conference on Ubiquitous computing
  • Year:
  • 2010

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Abstract

A persistent concern of wireless sensors is the power consumption required for communication, which presents a significant adoption hurdle for practical ubiquitous computing applications. This work explores the use of the home powerline as a large distributed antenna capable of receiving signals from ultra-low-power wireless sensor nodes and thus allowing nodes to be detected at ranges that are otherwise impractical with traditional over-the-air reception. We present the design and implementation of small ultra-low-power 27 MHz sensor nodes that transmit their data by coupling over the powerline to a single receiver attached to the powerline in the home. We demonstrate the ability of our general purpose wireless sensor nodes to provide whole-home coverage while consuming less than 1 mW of power when transmitting (65 ¼W consumed in our custom CMOS transmitter). This is the lowest power transmitter to date compared to those found in traditional whole-home wireless systems.