WAURISA Conference Tacoma, WA May 8, 2012 Jim Lahm- GPS/GIS Specialist

WAURISA Conference
Tacoma, WA May 8, 2012
Jim Lahm- GPS/GIS Specialist
Electronic Data Solutions, Portland
Open Discussion
Open forum
Take questions throughout
Help with specific issues (at the booth)
Provide contact information for
Washington & Oregon VRS
My Profile – Jim Lahm
Entered GPS Industry 1988
Trimble Certified Trainer 1994
Started Training company 1995
Electronic Data Solutions 2001
Esri ArcPad Trainer 2005
VRS Specialist 2007
jim@elecdata.com
503-624-6133
Electronic Data Solutions
Specializing in mobile computing and field data collection
applications for 25 years
Elecdata offers a variety of hardware & software solutions complete
with technical support, training and repair services.
Home Office in Jerome, Idaho
23 Employees with 8 sales field offices in the Western U. S. providing
regional coverage.
--Liberty, UT
--Portland, OR
--Idaho Falls, ID
--Olympia, WA
--Missoula, MT
--Baker City, OR
--Sacramento, CA -- South Jordan, UT
Proud to Represent Industry Leaders
Trimble GPS for Mapping & GIS
Trimble Utilities Field Solutions
Esri Business Partner & Developer
Juniper Systems Field Computers GPS/GIS Bundles
Ricoh GPS-ready Digital Camera
Laser Technology Rangefinders
Water Quality Sensors-Probes
Terms
GPS – Global Positioning System
GNSS – Global Navigation Satellite System
GPS – United States
GLONASS - Russia
Galileo – European Union
Compass - China
VRS – Virtual Reference Station
GNSS Basics (real time)
Autonomous Accuracy with any GNSS (GPS)
5-10 meters (16-33 feet)
WAAS (Wide Area Augmentation System)
1-5 meters (dependent on receiver quality)
Single Base (local)
1cm-50cm (restricted distance from base)
VRS (wide area)
1cm-50cm (stay inside geographic network,
no distance restrictions)
What is VRS?
Virtual Reference Station – Generic Term “Real
Time GPS Network”
Describes a network of GPS (GNSS) base stations
Each occupying known surveyed point
Each streaming data to a server
Server has identity on the Internet
Users connect to the Internet
Users authorized to stream server data
Why VRS?
GPS error is partly due to baseline distance
Error of GPS plus 1ppm – 1 ppm (Part per Million)
1 millimeter of error per kilometer of distance
RTK – Real Time Kinematic (1992)
Original system - one base, one rover
Accuracy dependent on distance to local
base
VRS – Virtual Reference Station
Stay inside the geographic network
VRS and How It Works
VRS
< 10 cm
< 10 cm
How to Connect?
User must get to the Internet
WiFi
Cellular Modem (internal or external)
Cellular Air Card to Router to Repeaters
New Product to Access Internet
WiFi Ranger
Portable, batterypowered mobile
wireless N router
Capable of
automatically
connecting to
repeaters
Internal or External Modem?
Manufacturers typically provide 3.5G or 3.75G
cellular modem as optional and are built into the
unit
Use GSM modems as they are universal (work in
all countries worldwide)
Use external devices such as Verizon MiFi, Sprint
Overdrive
Verizon MiFi & Sprint Overdrive Pro
What Does It Cost to Connect?
Typical solution
Cellular Modem – GSM or CDMA
GSM – Global System for Mobile Comm.
AT&T, T-Mobile
CDMA – Code Division Multiple Access
Verizon, Sprint
Data Plan – Unlimited or Fixed
Monthly Fee – Two Year Contract
What Does it Cost to Connect? (WA)
WSRN – Washington State Realtime Network
Must have a WSRN account set up
Cost - $1900 per year, per receiver
Free 90 day test account
What Does it Cost to Connect? (OR)
ORGN – Oregon Realtime GPS Network
Must have an ORGN rover account set up
On-line application at www.TheORGN.net
FREE at this time
May pay nominal fee in future
Fee for partners would be waived
Fee would be minimum necessary for cost recovery
for maintenance/operations/upgrade of network, not
to recoup costs for building the network.
Washington Coverage Map
Current Oregon Coverage Map
January 2012
Base Station Characteristics
+/- 70 Km Station Spacing
Satellite visibility: clear view of sky
No electromagnetic interference
Continuous power w/ backup
Internet connectivity
Vandal resistant locations
Year round ease of access
Site Example
Steps to Setup
Use Windows Mobile OS WiFi Utility
With external cellular/WiFi device
Verizon MiFi
Sprint Overdrive
Clear Spots
Use Windows Mobile OS “Phone” Utility
With built-in 3.5G modem
Steps to Connect
Go to Real Time Settings
Select External Source
Correction Datum
Type – VRS (IMAX) or Single Base
Connection Method – Internet
IP Address – Port
Select Server from Table
Login and Password
Live Demonstration
Using a Trimble GeoXH 6000
10 cm accuracy with WSRN
Using a Sprint Overdrive
3G-4G portable hotspot (cellular)
Using Trimble TerraSync Professional
Can also use ArcPad with GPScorrect or
TerraSync Professional Centimeter Edition
Live Demonstration
Contact Information for WSRN
Gavin Schrock – State of Washington
Seattle Public Utilities
700 5th Ave, Suite 4900
PO Box 34018
Seattle, WA 98124
(206)684-5630 office
(206)684-7396 fax
www.wsrn2.org
gavin.schrock@seattle.gov
Contact Information for ORGN
Ken Bays, PLS
Lead Geodetic Surveyor, Oregon Department
of Transportation
Technical Manager, Oregon Real-time GPS
Network (ORGN)
www.TheORGN.net
4040 Fairview Industrial Dr SE, MS 4, Salem,
OR 97302
Phone: 503-986-3543
Cell:
503-580-8793
Fax:
503-986-3548
kenneth.bays@odot.state.or.us
Contact Information for ORGN
Randy Oberg, PLS
Geodetic Surveyor
Oregon Department of Transportation
4040 Fairview Industrial Drive MS#4
Salem, Oregon 97302-1142
Office: (503) 986-3041
Cell: (503) 881-2889
Randy.D.Oberg@odot.state.or.us
Electronic Data Solutions
Portland Office
503-624-6133
jim@elecdata.com
Consulting on how to connect and use VRS
Free Installation Training
Free Technical Support
Questions?