Ph semat overview

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Transcript of Ph semat overview

ACEDP – River Health & E-flows

Brisbane, December 2009

! " 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.

! " A wireless sensor network “system” ! "“Smart”

! "Distributed

! "Low cost

! "Robust

! "Adaptable

! "Scalable

! "Eco-friendly energy

! " New platform for environmental

monitoring & Management support

! " 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

Moreton Bay

Heron Island Lagoon

Pros: ! " Cheap

! " Insensitive to acoustic noise

! " Low sensitivity to natural obsatcles

Cons: ! " High attenuation at high

frequency

! " Carrier freq must be ELF/VLF: consequent low bandwidth/comm speed

!" Results of transmission trial in sea (Amity Point, Stradbroke Is., Dec. 2007, fc=1kHz, P=100 mW)

Umberto M. Cella, Ph.D. Candidate confirmation seminar, 8 May 2008

!" Monitoring & assessment

!" Data for prediction & trend analyses !" Crisis management & response

!" Community communication !" Planning

!" Compliance

!"3G network – provides essential capability

!"“Network in a Case”

!"Adaptable communications methods !" UHF, VHF

!" Satellite

!" CDMA

!" 3G