On the feasibility of using servo-mechanisms in wireless multimedia sensor network deployments

Damien O'Rourke*, Raja Jurdak, Jim Liu, Darren Moore, Tim Wark

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

7 Citations (Scopus)

Abstract

This paper considers the use of servo-mechanisms as part of a tightly integrated homogeneous Wireless Multimedia Sensor Network (WMSN). We describe the design of our second generation WMSN node platform, which has increased image resolution, in-built audio sensors, PIR sensors, and servo-mechanisms. These devices have a wide disparity in their energy consumption and in the information quality they return. As a result, we propose a framework that establishes a hierarchy of devices (sensors and actuators) within the node and uses frequent sampling of cheaper devices to trigger the activation of more energy-hungry devices. Within this framework, we consider the suitability of servos for WMSNs by examining the functional characteristics and by measuring the energy consumption of 2 analog and 2 digital servos, in order to determine their impact on overall node energy cost. We also implement a simple version of our hierarchical sampling framework to evaluate the energy consumption of servos relative to other node components. The evaluation results show that: (1) the energy consumption of servos is small relative to audio/image signal processing energy cost in WMSN nodes; (2) digital servos do not necessarily consume as much energy as is currently believed; and (3) the energy cost per degree panning is lower for larger panning angles.

Original languageEnglish
Title of host publication2009 IEEE 34th Conference on Local Computer Networks, LCN 2009
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages826-833
Number of pages8
ISBN (Electronic)9781424444878
ISBN (Print)9781424444885
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE 34th Conference on Local Computer Networks, LCN 2009 - Zurich, Switzerland
Duration: 20 Oct 200923 Oct 2009

Other

Other2009 IEEE 34th Conference on Local Computer Networks, LCN 2009
CountrySwitzerland
CityZurich
Period20/10/0923/10/09

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O'Rourke, D., Jurdak, R., Liu, J., Moore, D., & Wark, T. (2009). On the feasibility of using servo-mechanisms in wireless multimedia sensor network deployments. In 2009 IEEE 34th Conference on Local Computer Networks, LCN 2009 (pp. 826-833). [5355048] Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/LCN.2009.5355048