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3D Mobile Mapping

3D Mobile Mapping. Dave Henderson National Sales Manager IP-S2 / GIS Products Topcon Positioning Systems. Introduction. 3D Mobile Mapping Considerations for an emerging technology “ What’s in it for me ?”. Overview. Emergence of 3D Mobile Mapping Components Hardware / Software Sensors

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3D Mobile Mapping

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  1. 3D Mobile Mapping Dave Henderson National Sales Manager IP-S2 / GIS Products Topcon Positioning Systems

  2. Introduction 3D Mobile Mapping Considerations for an emerging technology “What’s in it for me?”

  3. Overview • Emergence of 3D Mobile Mapping • Components Hardware / Software • Sensors • Imaging • Contribution to information extraction for users • It really is worth “a thousand words” (especially when it is geo-referenced)

  4. Overview • Deliverables • Interoperability • Everyone can use the data! • Data Mining – Historical Value • How much data is too much? • Applications

  5. Overview - Macro Total Mapping Solution • Rapid non invasive method of capturing 3D positioning and video log data • Fast: Reduce weeks of data collection • Too a few hours • Efficient: High accuracy at roadway speeds • Safe: Map from a vehicle – Not from the roadway

  6. Sensor Fusion - LIDAR • LIDAR – Scanner (LIght Detection And Ranging) • Same as aerial LIDAR, but oriented horizontally • Drive it instead of flying it • Consideration? • Range • Target Reflectivity • Scan Rate / Per Sec. • FOV

  7. Sensor Fusion Various sensors are integrated to obtain an accurate position and orientation • GNSS Receiver • Delivers the position information to the system • Latitude, Longitude and Altitude • IMU (Inertial Measurement Unit) • Supplies accurate attitude data for the system • Roll, Pitch and Heading information • Vehicle Odometry information is obtained via external wheel speed sensors • Wheel speed sensors or also known as DMI (Distance Measurement Indicator) compute the vehicles wheel rotation to aid the vehicle positioning

  8. Sensor Fusion Accurate Navigation When GNSS is Obstructed GNSS Wheel Encoder IMU Advanced Filtering Technology GNSS P V A IMU Filter Encoder

  9. Sensor Fusion GNSS Antenna 360° Camera IMU IP-S2 Laser Scanners Cube Mount

  10. Technology – Sensors

  11. IP-S2 System Velodyne Scanner

  12. Using the Data

  13. Command & Control Laptop PCConnected via Ethernet and 1394b (FireWire)Computer is required to ensure connectivity and health of all sensors as well as for data logging purposes.

  14. File Size(s)

  15. Workflow – Post Processing GNSS Rover Data Post Processed GNSS Data GNSS Base Dataor CORS Data GNSS+INS Post ProcessingForwards and Backward trajectory computation Raw Inertial Data(IMU) Vehicle Odometry Data (DMI)

  16. Workflow – Point Cloud & Image Generation Raw Image Data (PGR) Stitched Spherical Images GNSS+INS Post ProcessingForwards and Backward trajectory computation Point Cloud Data Raw LiDar Data

  17. Workflow – Image Alignment / Pose Raw Image Data (PGR) Stitched Spherical Images Point Cloud Data GNSS+INS Post ProcessingForwards and Backward trajectory computation

  18. Realistic Environment

  19. Deliverables • GIS Shapefiles with Attributes 360o Images Point Cloud GIS Data Attributes + Measurements + DBF

  20. Deliverables • Image Export Options • Individual lens frames • 360° spherical stitched images • .jpeg format • .bmp format • .avi format

  21. Deliverables • Point Cloud • .LAS file format is a public file format for the interchange of LIDAR data • Ascii.txt - common point cloud file format

  22. Point Cloud – Mobile & Aerial Data

  23. IP-S2 Applications • Power Utility Mapping • ROW • Pole inventory / Joint Use Audit • Risk Management • QC • Vegetation Management • Infrastructure and Asset Management • Utility structure location • Condition • Compliance • Regulatory/Safety/Environmental

  24. IP-S2 Applications • Roads / Streets / Highway Mapping • 3D Surface Conditions • Inventory Pavement conditions • Change Detection over time • Disaster response planning • Railway Corridor Mapping • Pipeline Mapping

  25. Considerations? • Is the solution complete – “Out-of-the Box”? • (Hardware / Software) • How compact and mobile is the system? • Is the system scalable? • - Add new sensors , as needed?

  26. 3D Mobile Mapping Professional Services Specifically for Pilot Project / Proof of Concept

  27. Dave Henderson Topcon Positioning Systems Dhenderson@topcon.com (214) 923-1910 http://www.topconpositioning.com/products/mapping-and-gis/mobile-mapping/

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