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Introduction
Citation preview
A Prototype for the Continuous and Cost-EffectiveMeasurement of River Discharge
AgendaIntroductionTheoretical considerationsPractical implementationTesting and resultsConclusions
Introduction
Project Context
General ways of measuring discharge
Manning’s method for discharge measurement
Manning’s formula
Where:Q – dischargen – Manning’s coefficient of rugosityA – area of the cross section of the riverR – hydraulic radiusS – free surface slope
ImplementationSystem architecture
Components choice (1)Nivopress NPK-4110 pressure
level sensor
Components choice (2)National Instruments Wireless
Sensor Network
Software application (1)Precomputation phase
Software application (2)NI LabVIEW
Software application (3)NI LabVIEW
Testing and results (1)Testing setup for a sensor wired
to the WSN node
Testing and results (2)Some values read from the sensors
Testing and results (3)Cost considerations
◦Gateway: ~1600€
◦WSN Nodes: 5 x ~400€
◦Depth sensors: 5 x ~500€
◦Other accessories: ~200€
----------------- ~ 6300€
Testing and Results (4)Setup and installation time
◦Low (< 1 day)
ConclusionsContinuous discharge
measurement based on slope-area method
Low costEasy to install and mantainEasy to configure remotely