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Using Tablets for Field Data Collection:
How the MDC’s Resource Science Division is using tablets for data collection.
Philip Marley & Joel Sartwell
Outline
• Risks and Benefits • MDC Tablets & Projects • Joel
What is a Tablet??
• A mobile computer with the display, circuitry, and battery in a single unit.
• 2 Types of Tablets 1. Slates or Booklets 2. Hybrids on Convertibles
• Typically 7 inches or larger (diagonally) • Touchscreen (finger or stylus)
Why Use a Tablet?
Benefits • Efficient & Accurate Data • Simplify Process • Program can Guide Users • Error Checking • Immediate Calculations • Take Photos/Location Data • Scalable
Risks • Costs (Technology vs paper) • Training • Tech Support • Programming • Failure in Field • Battery Life • Disconnected Editing
Outline
• Risks and Benefits • MDC Tablets & Projects • Joel
Tablets and Projects
Tablet • Apple iPad • Motion CL910 • Panasonic Toughpad FZ-G1
• Xplor XC6 Dual-Mode • Samsung Nexus7 (coming soon)
Project • Nature Center Survey • ECS Project • RAM • Endangered Stream Fish • Aerial Surveys • Aquatic Habitat Monitoring • Shooting Range Survey
iPad / Nature Center Survey
• iOS • Not Rugged • Lightweight ~1lb • Thin ~ 7.5 mm • Wifi only • $700
• Volunteer Survey Clerks • Extreme Weather
Motion / ECS Project
• Windows 7 OS • Semi – Rugged • Weight ~1.85lbs • 64GB SSD & 2GB RAM • Atom Processor (1.65Ghz) • Broadband Capable • IP52 rated • $1,500
• Vegetation Data Collection • Soil Properties • Plot/Site Data Collection • Run Access Database
• Drop down fields
Toughpad / RAM
• Windows 7 OS • Ruggedized • Weight ~ 2.4lb • Intel Core i5 Processor • 128 GB SSD & 8BG RAM • Built in GPS • MIL-STD810G & IP65 • $2,500
• Riparian Area Monitoring • Complicated Program
• 12 Tables • 12 users interfaces
Toughpad / Endangered Stream Fish
• 3 Endangered Fish Species • ArcPad with built in GPS • Built in Camera Feature • Harsh Conditions
Toughpad / Aerial Survey • DNRSurvey • Windows Based • Beta • Collect Data via ArcMap
Xplor / Aquatic Habitat Monitoring
• Windows OS • Fully Ruggedized • Weight ~ 6lb • Intel Core i5 Processor • 128Gb SSD & 4 GB RAM • Warm Swappable Battery • MIL-STD 810G & IP67 • $6,000
• Harsh Wet Environment • Aquatic Habitat Monitoring • Depth • Velocity • Demersal velocity
Nexus 7 / Shooting Ranger Survey
• Android OS (Kit Kat) • $200
• Low Cost • Small Lightweight • OS Updates
Field Testing
• iPads
• Motions
• Toughpad
• Xplor
• Talk to our network • Easy to use • Issues with temperature
Field Testing
• iPads
• Motions
• Toughpad
• Xplor
• Talk to our network • Windows based • Semi rugged • Issues with processing power
Field Testing
• iPads
• Motions
• Toughpad
• Xplor
• Talk to our network • Windows Based • Built in GPS & Camera • Very powerful • MIL-STD 810G & IP65 • Some Issues w/ Water • Limited Accessories
Field Testing
• iPads
• Motions
• Toughpad
• Xplor
• Talk to our network • Windows Based • Very Rugged - IP67 • Heavy ~ 6lbs • Expensive ~$6,000
Outline
• Risks and Benefits • MDC Tablets & Projects • Joel
Db Admin
Principle Investigator
Sql Server
Apps 1 & 2 App 2
App 2 App 2
App 22
Apps 1 & 2
Apps 1 & 2
Apps 5 & 6 Apps 1 & 2 App 1
MDC
WORLD
Text SS Mobile
SQLite MS Access
db db
db db db
db
db
db
db
db
Firewall
Db Admin Sql Server
Principle Investigator
Web Services/Methods 1
Web Services/Methods 2
Load Balancer
Proxy 1
Proxy 2
Apps 1 & 2 App 2
App 2 App 2
App 22
Apps 1 & 2
Apps 1 & 2
Apps 5 & 6 Apps 1 & 2 App 1
Load Balancer
MDC
WORLD
www db
db
db db db
db
db
db
db
db Text
SS Mobile SQLite
MS Access
Db Admin
Principle Investigator
Sql Server
Apps 1 & 2 App 2
App 2 App 2
App 22
Apps 1 & 2
Apps 1 & 2
Apps 5 & 6 Apps 1 & 2 App 1
MDC
WORLD
• Inserts & Updates Only – (On Upload or Download) • All records get TimeStamp – If Incoming Record Newer Update • Deletes must be reconciled between Db Admin and PI
db db
db db db
db
db
db
db
db Text
SS Mobile SQLite
MS Access
• When using paper data sheets PIs would budget 3-6 weeks of data clean-up and entry time.
• Using Trimble Rangers and Nomads PI’s needed maybe 3-6 days to ensure all the data was compiled properly
• Now, the PIs can begin analysis within 3-6 minutes (right after they’ve sent the email out thanking everyone for their good work!!!).
• Communication between the mobile devices over a network with Sql Server: • Simple Access Protocol (SOAP) using the ASP.NET framework (ASMX) . • ASP.NET Web API (HTTP API) using representational state transfer (REST).
• Data is always transferred in a Javascript object notation (JSON) or JSON with
padding (JSONP)
• Transferring Images ??? • 3rd Party Cloud Image Server • Custom Cloud Image Server • Open to Ideas…
{ "id": 1, Foo", "price": 123, "tags": [ "Bar", "Eek" ], "stock": { "warehouse": 300, "retail": 20 } }
{ "id": 1, "name": "Foo", "price": 123, "tags": [ "Bar", "Eek" ], "stock": { "warehouse": 300, "retail": 20 } }
Device Programming (Data Entry Platforms) • Initially web only data entry platform within a browser (html5, css3,
Javascript, jQuery and SQLite). These could be pushed as apps…
• Windows based tablets: C#. Able to convert existing Windows mobile programs to Windows 7 and 8 programs.
• Java (Android) University of Missouri Comp. Sci Interns…
• C# (to Native Android or iPad using Xamarin).
Additional Features and Functionality
• GPS • Navigation • Prevent Cheating – data validity
• Voice/Camera/Video: Store images directly in database (byte array)
• Wifi – Endless list of device additions…
• Gyroscope/Accelerometers – Imaging, drop detection, pedometer
QUESTIONS?
Thank You!
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