Encyclopedia of Database Systems

2018 Edition
| Editors: Ling Liu, M. Tamer Özsu

Data Fusion in Sensor Networks

  • Aman Kansal
  • Feng Zhao
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_101

Synonyms

Distributed sensor fusion

Definition

Data fusion in sensor networks is defined as the set of algorithms, processes, and protocols that combine data from multiple sensors. The goal may be to extract information not readily apparent in an individual sensor’s data, improve the quality of information compared to that provided by any individual data, or improve the operation of the network by optimizing usage of its resources.

For instance, the output of a magnetic sensor and an audio sensor may be combined to detect a vehicle (new information), outputs of multiple vibration sensors may be combined to increase the signal to noise ratio (improving quality), or a passive infrared sensor may be combined with a camera in a people detection network to reduce the frame-rate of the camera for conserving energy (improving operation).

The sensors fused may be of the same or different types. Key features of data fusion in sensor networks, that distinguish it from other methods to combine...

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Microsoft ResearchRedmondUSA

Section editors and affiliations

  • Le Gruenwald
    • 1
  1. 1.School of Computer ScienceUniv. of OklahomaNormanUSA