Collector for ArcGIS: Working with High Accuracy Data · 2017-08-14 · Collector | Location...
Transcript of Collector for ArcGIS: Working with High Accuracy Data · 2017-08-14 · Collector | Location...
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Collector for ArcGIS: Working with High
Accuracy DataKevin Burke
Morgan Zhang
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Agenda
• Introduction
• Getting started
• Collector setup for high accuracy data collection
• Field data collection process
• Tools and resources
• Q&A
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Connecting the Field with the Enterprise
Field GIS
• Planning and Managing Work
• Viewing Maps
• Collecting New Data
• Inspecting Existing Data
• Working as a team
Taking GIS Beyond the Office
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Web Maps
High Accuracy GPS
Work Offline
Collector for ArcGIS
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Capture Observations
Perform Rapid Assessments
Collect and Maintain Data
Collector for ArcGIS| How is it being used?
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Collector for ArcGIS| Asset Inventory
• Improve accuracy and currency of data
• Modernize field workflows
UAV Ground Control
Hydrant Collections
Sign Inventory
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Collector for ArcGIS| Le-Ax Water District
Travis Anderson
Civil Engineer
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Collector for ArcGIS | Control Points Use Cases (Drones)
Drones… Control PointsSoccer cones
Collector + RTK/RTX
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Considerations for high accuracy data collection
Getting Started
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Data Collection Considerations
• Project accuracy requirements
• Supported receivers
• Correction services
• Desired basemap for collection
• Datum transformations
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Collector for ArcGIS| Lots of Receivers
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Collector | Using Real-time Differential Corrections
• Improve accuracy from receiver
• Requires a subscription and connection*
• Optionally use 3rd party app to configure
• Need to understand your map’s projection
and apply a location profile accordingly
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Datum TransformationsMinimize when possible to maintain accuracy
DT1 – Defined in location profile
DT2 – Determined by basemap
DT3 – Determined by storage coordinate system
Web Layer GeodatabaseWeb Map
DT2 DT3DT1
Geographic Transformation Table
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New High Accuracy Capabilities
Collector Setup
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Demo
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Collector | Location Provider
• Located in App Settings
• Support for
- Integrated receivers
- Bluetooth receivers
- Serial receivers on Windows
• Connect to named receiver
• Specify antenna height
iOS White Listed Providers:
• Trimble R1/R2
• Eos Positioning
• Geneq iSxBlue
• CHC
• Bad-Elf
• Aman NMEA-BT Adapter
• Dual GPS
• Garmin GLO
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Collector | Location Profile
• Define the transformation used from receiver to map
- Integrated location sensor or external GNSS receiver
Input: Coordinate System used by GNSS receiver correction service
- Always GCS (example: NAD_1983_2011)
Output: Coordinate System used by Web Map’s BaseMap
- GCS or PCS
Method: Datum transformation selection
- Choices by map extent
- Custom and grid-based transformations not supported
Name: Provide a memorable name for the profile
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• User-defined accuracy value
- Match project accuracy requirements
• Specify in imperial or metric units
- Based on measurement units
Collector | Location Accuracy
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New High Accuracy Capabilities and Use Cases
Field Data Collection
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Demo
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Demo Recap
• GPS badge
- Useful for troubleshooting
• Basemap overzoom
- Zoom in beyond minimum scale range (resampled)
• GPS Metadata fields
- Auto-populate accuracy information to point features
- Based on well-known fields added to your Feature Layer (points
only)
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Tools and Resources
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Demo
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Tools and Resources
• New hosted feature layer option for collecting high
accuracy metadata
• ArcGIS Solution Deployment Tool in ArcGIS Pro
Deployment Tool
• Scripts available to help automate attribute creation
and popup configuration
Record metadata fields
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Collector | ProjectZ Geoprocessing Tool
• Z-value capture workaround
- Altitude Stored as an attribute value
- Capture height above the ellipsoid
(HAE)
- Subtracts antenna height
- Converted into orthometric height if needed
Note: Editing Z-enabled geometry is not yet supported
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Collector | Additional Use of ProjectZ Tool
• Capture Drone ground control points (GCP)
- Using Ground Control feature template
- Convert into orthometric heights
- Import GCP
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Demo
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Other Resources
Technical workshops
- Coordinate Systems and Projections: An Introduction
- Coordinate Systems and Datum Transformation in ArcGIS: An Introduction
Other resources
- Lining Up Data in ArcGIS: A Guide to Map Projections,Second Edition
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What is New
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What is new in Collector - June 2017
• GPS Averaging
- Some industry best practice, like USFS
- Standard deviation metadata field
• Collector utilities scripts updated
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Collector What’s Coming
Q3 2017
- Trimble Catalyst (Android)
- 95% confidence interval
2018
- Z value support
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Take Away
• Access accurate location reliably
- In field: GNSS badge
- In office: GNSS metadata
• Data Collection Consideration
- Receiver + Correction service choice
- Datum transformation
• Use Case
- Hydrant collection
- Ground Control Point for Drone
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Please Take Our Survey on the Esri Events App!
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Complete Answersand Select “Submit”
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