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Post PC Irrigation SensorPost PC Irrigation Sensor

Post PC Computing, HUJI 2001

Lecturer: Prof. Scott Kirkpatrick

Presented by Ami Serri-Menkes

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OverviewOverview

IntroductionCritical TasksTechnology RequirementsUsability IssuesConclusion

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Current NeedsCurrent Needs

Water ConservationEnergy ConservationGreen Areas:

Agriculture

Horticulture

Nature Reserves

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Project GoalsProject Goals

Low Power Irrigation ControllerSmart Sensor InputWeather Forecast Input

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DescriptionDescription

Solar Irrigation ComputerSmart Sensors:

Solar Panel

Tensiometer - ‘Artificial Root’Solenoids – Electric ValvesFuture: Internet Weather Forecast

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Competitive AnalysisCompetitive Analysis

Competitors –Manual Irrigation– Timer-based Irrigation

Strengths –Water Use Efficiency

Weaknesses– Price of Connectivity, Components

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Technology RequirementsTechnology Requirements

Power Budget:– 9V battery: 5.085 WHr– Solar panel: 12-30WHr/Day

Power Consumption:– 1 Solenoid: 14mWHr/Day– 4 Solenoids: 64mWHr/Day.– CPU+Display: 7mWHr/Day– Tensiometer: 3mWHr/Day.– Cellular: 25mWHr/Day (listen mode)

Total: 100mWHr/Day

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Data IntegrationData Integration

Time-based to Tension-basedDepends on Plants, Soil Type=> Calibration:min,max

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User TestingUser Testing

(video clip)

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Usability IssuesUsability Issues

3 Modes: Sensor,Auto-run/off,Manual=>2 Modes: Sensor, ManualOn/Off buttons confusing=>STN button or new Mode button

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Future WorkFuture Work

Component and Data IntegrationCellular Connectivity (SMS?)New Sensors (LeafSense)Usability

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ConclusionConclusion

Present: Prototype (non cellular)Future: ConnectedEnergy, Water, Fertilizer SavingsTime Savings

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What We LearnedWhat We Learned

How to Develop IdeasTechnical AnalysisUser TestingSolar PowerIrrigation

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ThanksThanks

Prof. Scott Kirkpatrick, HUJIIlan Porat, RotemHeiner Lieth, Loren Oki, UC DavisPost PC students

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Related Web SitesRelated Web Sites

www.tipa.gov.illieth.ucdavis.eduwww.bermad.comwww.earthsystemssolutions.com

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Questions/RemarksQuestions/Remarks