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We apply a recently developed model for anomaly detection to sensor data collected from a single node in the Heron Island wireless sensor network, which in turn is part of the Great Barrier Reef Ocean Observation System. The collection period spanned six hours each day from February 21 to March 22, 2009. Cyclone Hamish occurred on March 9, 2009, roughly in the middle of the collection period. Our...
Conversion of a manhole cover into a slot antenna is an environmentally-robust method of retrofitting sewage systems for environmental monitoring networks. Challenges in this design include the fact that the environment is harsh and not static, the radiation source is at ground level, and the antenna can not protrude from the ground. In this paper, we demonstrate successful sensor network retrofitting...
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