Ph semat overview

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Ph semat overview

  1. 1. ACEDP – River Health & E-flows Brisbane, December 2009
  2. 2. ! " Separating background variation from real change! " Reducing the need for extrapolation & interpolation! " Capture events – continuous data collection! " Need to cross ecological scales in data collection (Satellite to ground to satellite)! "Need to dialogue with data collection system – react remotely.! "Build overall confidence in the models & decisions made based on the data.
  3. 3. !" A wireless sensor network “system” ! "“Smart” ! "Distributed ! "Low cost ! "Robust ! "Adaptable ! "Scalable ! "Eco-friendly energy! " New platform for environmentalmonitoring & Management support
  4. 4. ! " Taking multidisciplinary approach to produce a new generation of integrated technologies – not a one-man project seamless from data collection to application! " Phased R&D Evolution rather than blue-sky invention Proof of concept to viable product! " Applicable beyond the environments being used for development
  5. 5. Heron Island Lagoon Moreton Bay
  6. 6. Pros:! " Cheap! " Insensitive to acoustic noise! " Low sensitivity to natural obsatclesCons:! " High attenuation at high frequency! " Carrier freq must be ELF/VLF: consequent low bandwidth/ comm speed
  7. 7. Umberto M. Cella, Ph.D. Candidate confirmation seminar, 8 May 2008!" Results of transmission trial in sea (Amity Point, Stradbroke Is., Dec. 2007, fc= 1kHz, P=100 mW)
  8. 8. !" Monitoring & assessment!" Data for prediction & trend analyses!" Crisis management & response!" Community communication!" Planning!" Compliance
  9. 9. !"3G network – provides essential capability!"“Network in a Case”!"Adaptable communications methods !" UHF, VHF !" Satellite !" CDMA !" 3G

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