CompassTools - PowerPoint PPT Presentation
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CompassTools
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Resistance to Interference and Jamming. Allows Common Grid Reference. CompassTools. Grades of GPS ... Handheld self-contained GPS/GIS data collection and ... – PowerPoint PPT presentation
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Title: CompassTools
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CompassTools
- Solutions For
- GIS Field Data Collection
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What is GPS?
- 24 Satellites in Final Constellation
- Satellites in Very High Orbit (20,200 km)
- Continuous Availability
- 6 to 11 SVs Always in View
- World Wide Coverage
- Passive Service
- Unlimited Number of Users
- Resistance to Interference and Jamming
- Allows Common Grid Reference
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Grades of GPS
- Recreational (100 - 1,000)
- 10 meter accuracy
- Mapping (3,000 - 20,000)
- 10cm - 5 meter accuracy
- Survey (8,000 - 200,000)
- 1mm - 5cm accuracy
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Ways GPS can be used
- Mapping
- Recording something, somewhere
- What do I have?
- Navigation
- Finding something, somewhere
- Where is it?
- Updating
- Verifying something, somewhere
- Is the information I have correct?
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Rugged CE Device
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Basic Mapping Unit
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GeoXT and XM
- Handheld self-contained GPS/GIS data collection
and maintenance tool - productive data collection
- real-time DGPS withBoB or WAAS
- GIS datamaintenance
- sub-meter accuracy or
- 2-5 meter accuracy
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Beacon-on-a-Belt (BoB)
Your ideal real-time companion
- Real-time DGPS
- Cable-free ergonomics
- Easy to use
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Sub-meter Backpack units
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GPS Field Collector
Full functionality - GIS data collection and
maintenance software
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GPS Pathfinder Pro XR / XRS
- Decimeter, differential GPS / GIS data collection
tool - Integrated technology
- GPS Beacon Satellite
- Satellite differential
- (LandStar and OmniSTAR)
- Dynamic decimeter accuracy
- 10-30cm for points, lines, areas
- Choice of Asset Surveyor or ASPEN software
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Data Collection
- Collection of spatial data
- Points, Lines, Areas
- Offset locations
- 10cm to 5 meter precision
- Customized attributeinformation
- Menu lists, Text, Numeric, Dates and times
- Multiple data dictionary support
- Infield data dictionary creation
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Data Collection
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Data Maintenance
- Relocate featuresgraphically
- Verify and updatepositions and attributes
- Changes trackedautomatically
- Add new features
- Integrate changes back into GIS
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Data Maintenance
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Real-time Map
- Display features as you map or update them
- Easy zoom control
- Filter by
- feature type
- time
- update status
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Navigation
- Navigate directly to features
- Use antenna for real-time DGPS precision
- Both grades of mapping
- receivers (XRS and GeoXT/XM)
- support precise
- navigation
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Navigation
Feature relocation
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Applications
- Utility and Urban Asset Databases
- Utility poles
- Road centerlines
- Transportation
- Urbaninfrastructure
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Who is using GPS?
- Colorado Open Space
- Maximize personnel
- Road inventory Line
- Weed Mapping Area
- Inventory Point
- Colorado State Parks
- Seasonal staff
- Trail mapping
- Plant species inventory
- Park infrastructure
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Map Display
- Provides a graphical display of your field data
- Ability to display attribute information along
with features on the map - Easily identify features for updating
- Allows you to digitize new
- features
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Offsets
Collect location without visiting site
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External Sensors
- GPS can be linked to other electronic metering
devices such as - Laser rangefinders for GPS offsets
- Depth finders for lake-bottom mapping
- Digital Cameras
- Examples of applications
- Water Quality Analysis
- Magnetic Field Strength
- Radiation Levels
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Do you need raster backgrounds with GPS?
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Imagery Options
- Pixel Sizes
- 10m, 1m, 0.5m, 1ft, 6 in
- Accuracy
- Simple Rectification - depends on amount of GCPs
- Orthorectification - 1-2 meters typical
- Spectral
- Grayscale
- Color
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Powerful Tools!
Many tools that allow quick and seamless data
flow from the field to the GIS and back again
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