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SeaSTAR underwater experiments in Het Rutbeek lake 
The Dutch SeaSTAR project, which is funded by Technology Foundation STW, has reached a new milestone on May 6th 2013, when a network consisting of custom-built underwater sensor nodes was deployed and tested by the Pervasive Systems group of the University of Twente. In total, seven underwater nodes, were deployed in a lake at the Rutbeek recreational center near Enschede, The Netherlands. The goal of the test was to assess the feasibility of autonomous localization of the sensor nodes.

Autonomous localization of underwater sensor nodes is of great importance when such networks are used to monitor water quality, marine life behavior, oil spills, underwater pipeline integrity, and other underwater structures. Our tests show that autonomous localization is indeed possible.

The sensor nodes were developed in-house by the group with low-cost and flexibility in mind. Costs were kept down by using a COTS CPU board and standard PVC materials, whereas flexibility was achieved by implementing most features, such as the underwater MODEM and localization algorithms, in software.

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