efficient irrigation via “smart” control rick foster sr. product manager
TRANSCRIPT
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Efficient Irrigation via “Smart” Control
Rick Foster
Sr. Product Manager
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The World’s Water Crisis
There is no new water.
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Current Water Issues
• The cost of water & power is rising annually
• As the population grows, limited water sources strain to keep up with demand = DROUGHT
• In many cities, water delivery systems were designed to service a much smaller number of people than is required today = INFRASTRUCTURE IS STRAINED
• Irrigation is one the most visible forms of water use and is usually the first to be regulated in a drought or water shortage condition
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Current Water Issues
• A recent report on the irrigation industry stated that automatic irrigation systems are one of the largest causes of over-watering:– The controller on the typical irrigation system is adjusted an
average of 1-1/2 times per year and many are never adjusted
– Controllers are typically set to apply the peak irrigation requirement of the year
– The average automatic irrigation system applies 2 to 3 times the amount of water required by the landscape
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Current Water Issues
• Current politics of irrigation: – Water bans & restrictions– Tiered water rates– Lawn size and landscape restrictions– Mandatory irrigation audits– Mandatory “smart” controllers– Water-efficient product rebates
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Efficient Irrigation via “SMART” ControlKey Concepts
1. Evapotranspiration – Plant Water Need Based on Changing Weather Conditions
2. Management Allowed Depletion (MAD) – Proven Method of Irrigation Scheduling
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Efficient Irrigation via “SMART” ControlKey Concepts
Evaporation
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Efficient Irrigation via “SMART” ControlKey Concepts
Transpiration is the process by which plants return water to the atmosphere. After absorbing water from the ground, plants release water through their leaves. Transpiration helps plants stay cool, in the same way perspiration keeps humans and animals cool.
Plant Transpiration
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Efficient Irrigation via “SMART” ControlKey Concepts
• Loss of water from vegetation though the combined processes of soil evaporation and plant transpiration
Evapotranspiration (ETo)
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Efficient Irrigation via “SMART” ControlKey Concepts
• Temperature
• Wind
• Humidity
• Solar Radiation
Weather Factors That Influence The ETo Amount
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Efficient Irrigation via “SMART” ControlKey Concepts
Historical ETo by Month
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Efficient Irrigation via “SMART” ControlKey Concepts
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Efficient Irrigation via “SMART” ControlKey Concepts
• Maximum % of Plant Available Water (PAW) taken out of soil before irrigating– % removed; NOT % remaining
• MAD provides a safety buffer– Broken mains– Controller downtime– Weather variations
• Varies by soil type – MAD Ranges from 35% to 50%
Management Allowed Depletion (MAD%)
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“Smart” irrigation controllers work by monitoring and using information about site conditions (such as soil moisture, rain, wind, slope, soil, plant type, and more), and applying the right amount of water to the landscape based on those factors.
IA Association SWAT website: http://irrigation.org/SWAT/Industry/landscape-contractors/
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Efficient Irrigation via “SMART” Control
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Efficient Irrigation via “SMART” Control
• Climate - Based Systems–Central Control
–ET Controllers
• Site Data – Based Systems–Soil Moisture Sensors
–Rain/Freeze Sensors
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ET ManagerCommercial grade
retro-fit product
ESP-LXM Controller with ET CartridgeCommercial grade,
modular, ET controller
ESP-SMTResidential or Light Commercial Smart
Controller
NEW
IQ/Site Control/MaxicomResidential or Light Commercial Smart
Controller
Climate-Based SystemsET Control
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Climate-Based SolutionsCentral Control
Multi-Site
Maxicom2
IQ
Single-Site
SiteControl
MDC
Larger Sites,Fully-AutomaticOperation
Smaller Sites,Semi-AutomaticOperation
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Climate-Based SolutionsCentral Control
• Maxicom2 Weather Station WS-PRO– Collects and stores weather
data– Data communicated to central
control – Runtimes adjusted according
to daily ET and rainfall
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ET ManagerCommercial grade
retro-fit product
ESP-LXM Controller with ET CartridgeCommercial grade,
modular, ET controller
ESP-SMTResidential or Light Commercial Smart
Controller
NEW
IQ/Site Control/MaxicomResidential or Light Commercial Smart
Controller
Climate-Based SystemsET Control
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ET Manager: Where to Use it
• ET Manager Indoor (ETMi): Any non-battery operated controller in light commercial and commercial applications
• ET Manager Cartridge: Any Rain Bird LX Controllers
22SWAT TESTED
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How ET Manager Works
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ET Manager Rain Gauge: Features• Measures rainfall on-sight so overwatering
does not occur during the next irrigation event.
• Rainfall interrupt to shutoff irrigation during the rain.
• Applies only the correct amount of rainfall to future irrigation calculations
– During a heavy downpour the rain gauge accounts for increased runoff
– During a light drizzle the rain gauge accounts for higher absorption
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ET ManagerCommercial grade
retro-fit product
ESP-LXM Controller with ET CartridgeCommercial grade,
modular, ET controller
ESP-SMTResidential or Light Commercial Smart
Controller
NEW
IQ/Site Control/MaxicomResidential or Light Commercial Smart
Controller
Climate-Based SystemsET Control
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Rain Bird ESP-SMTSmart Modular Control System
“ESP” – Extra Simple Programming Continues the legacy of the Rain Bird ESP family that customers have embraced due to its “ease of use” and high quality
combined with
“SMT” – Smart Modular Technology
Uses proven scientific principles to automatically optimize the irrigation schedule in order to maintain healthy plant material
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Rain Bird ESP-SMTSmart Modular Control System
ESP-SMT Smart Control SystemComprised of:
1. On-Site ESP-SMT Weather Sensor
2. ESP-SMT Smart Modular Controller
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Rain Bird ESP-SMTSmart Modular Control System
• On-site weather sensor
• Rain Measurement Capabilities
• Automatic "Cycle and Soak"
• Irrigation Schedule optimizing using "MAD" Approach
• Separate Grow-In and Established Modes
• Default or Custom/Advanced Mode
Key “Smart” Features
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Rain Bird ESP-SMTSmart Modular Control System
Extra Smart– Schedule Optimizing – Automatic Cycle & Soak– Rain Suspend & Measurement
Accounts for Effective Rainfall– SWAT Test Scores
Adequacy = 100% Scheduling Efficiency = 98.5%
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Rain Bird ESP-SMTSmart Modular Control System
Extra Simple– “Configure Controller” and
“Zone Set-Up” Programming Wizards
– Self-prompting Programming– HELP Screens– English/Spanish Screen Text– Field Test “Ease of Use”
Survey Scores = 4.5+ out of 5.0
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Rain Bird ESP-SMTSmart Modular Control System
Site Specific•Temperature• Rainfall Shut-off• Rainfall Measurement
Zip Code Specific• Humidity Avg. by Month• Wind Speed Avg, by Month• Solar Radiation Calculation
Zone Specific Parameters• Soil Type / Slope• Sprinkler Type – Applic. Rate • Plant Type
•Species Factor•Root Depth
• Plant Density• Shade factor
+ +
How the System Works…
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Site Data - Based SystemsRainfall and Freeze Sensors
RSD Wired Rain Sensor
WR2 Wireless Rain/Freeze
Sensor
Rain Check Rain Sensor
NEW
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Rain Bird’s WR2 Wireless Rain Sensor Features and Benefits
Available as: Rain Sensor
Rain Freeze Sensor
Benefits of the WR2:Installs FasterEasier to UseSuperior Reliability
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Rain Bird’s WR2 Wireless Rain Sensor Installs Faster
LCD screen displays all your settings at a glance
Battery Life
Signal Strength Rainfall Levels and Set PointsTemperature Levels and Set Points
Programmable irrigation modes
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Rain Bird’s WR2 Wireless Rain Sensor Installs Faster
Shows signal strength on the controller interface AND the sensor
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Rain Bird’s WR2 Wireless Rain Sensor Installs Faster
• WR2’s mounting bracket easily mounts on walls or gutters
Competition:Hunter gutter mount is a separate SKU – an extra expense and inconvenienceBoth Hunter and Irritrol mounting brackets are not as easy to install
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Rain Bird’s WR2 Wireless Rain Sensor Easier to Use and Superior Control
Six rainfall set points between 1/8”and 1/2” inch
Rainfall adjustment is important depending on your soil type
“Quick Shut Off” feature
Competition:Hunter does not have rainfall set pointsIrritrol only has four set points
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Three adjustable temperature set points
Why is adjustability important?
Rain Bird’s WR2 Wireless Rain Sensor Easier to Use and Superior Control
Competition:Hunter has only one set point at 37ºFIrritrol only has one set point at 41ºF
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Rain Bird’s WR2 Wireless Rain Sensor Easier to Use
Antennas are contained within the sensor and controller interface
Homeowners will prefer this neat look compared with external wire antennas
IrritrolHunter
Competition:
Rain Bird’s WR2
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Battery strength is shown on controller interface
Battery can easily be replaced without tools or disassembling product
Rain Bird’s WR2 Wireless Rain Sensor Easier to Use
Competition:Hunter’s battery life is shown as “good” or “bad”Irritrol’s battery strength indication is confusing. A single LED is responsible for communicating multiple messages
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Signals are updated every 45 seconds
Overcomes most line of sight restrictions for freedom in sensor placement
Communication distance of up to 700 feet line-of-sight
Rain Bird’s WR2 Wireless Rain SensorSuperior Reliability
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Site Data - Based SystemsSoil Moisture Sensor
SMRT-Y Soil Moisture Sensor
Add-on device that makes any
controller “smart”
NEW
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SMRT-Y Soil Moisture Sensor Overview
• Add-on device that turns any standard controller into a “smart” controller
• Typical water savings of 40% or more
• Advanced sensor technology provides accurate soil moisture readings even as soil conditions change
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SMRT-Y Primary Function
ControllerSMRT-Y Controller
Interface Unit
Valves
SMRT-YMoisture Sensor
….
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Patented Time Domain Transmissometry (TDT) with Digital Signal Processing
AIR = 15%
WATER = 35%
SOIL = 50%
WATER = 50% SOIL = 50%Accurately measures the ABSOLUTE volume of soil moisture even when conditions change.Soil Type
Soil Temperature
Soil Electrical Conductivity
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Simplified Sensor Installation
1) Select a location forthe sensor
2) Install the sensor 3 to 5 in. below the surface
3) Connect the sensor to the nearest valve
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Setting the Moisture Threshold
• Set Manually– Use average value of the site’s Management Allowable Depletion
(MAD)
– Calculate 80% of the known or estimated field capacity
• Use the SMRT-Y Auto-set feature
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University of Florida Study:45%-73% Water Savings
• Controller scheduled to irrigate 2 days per week
• Less than normal rainfall during test period
• Expect even greater savings when….– Higher rain fall during test period– Irrigation > 2 days/week
ControlWR2SMS1SMS2 + WR2
Rainfall
Legend
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Questions?