3d laser scanning steering smart …...add your company logo here on master slide case study:...
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3D LASER SCANNING STEERING SMART
SURVEYING SOLUTION FOR INDIAN RAILWAY
Dr. Kamal Jain, Professor, Department of Civil Engineering,
Indian Institute of Technology Roorkee, India
Indian Institute of Technology Roorkee, India
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Aim
“To establish innovative 3D laser scanning and
Photogrammetry as a key measurement technology to document every fine detail of railway infrastructure in record time and with an extremely high level of accuracy”
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Indian Railway: Challenges: Solution
• Track Improvements
• Advance Infrastructure
• Accurate Signaling, Crossing and Sensor Services
• Quantify Assets and plan there utilization
• Test modern IT solutions with existing Infrastructure
Surveying
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Case Study: Roorkee Railway Station and Track
Laser Scanner - Faro Focus 3D Maximum 1 million points/sec scan rate 330 meter scan range Full 360 Deg HD scan in ±8 min Integrated 3 MP Camera (Quality > 70MP) PDA or Laptop control
Benefits Quickly captures highly accurate on-site conditions Eliminate/identify possible design conflicts Combined with 3D modeling for visualization & drawing production
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Project site planning
Scan Specification Area: 7500 m. Quality: 4x Scan Resolution: 1/8 Time: 6 min/1 Station : 30 Range: > 20 m
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How 3D Laser Scanning Works
1. Select Scanner 2. Data Capture 3. Connecting the Dots 4. Develop 3D Model
5. Results
Plans Clash Detection Virtual Reality Technical Document
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Data Capture: Point Cloud Data
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Data Import: AutoDesk Recap 360
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Stitching step1: Import All Scans
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Stitching step2: Registration
This process essentially "stitches" your scans together into a full representation of your intended project. here is two types of registration
REGISTRATION
AUTO REGISTRATION
MANUAL REGISTRATION
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Auto Registration
Auto Registration becomes available once all files have started importing
Click Merge
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Manual Registration To register a scan, select a scan in each pane then place three points in corresponding
locations between the two
TARGET 1 TARGET 1
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Index Scan Top View
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Final Point Cloud Model
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3D Modeling: 3D Max with Auto Desk Recap
Turn on Create geometry
3D Snap to turn on snapping Grid Point
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Extrude Object Face
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Polygon Mesh Object
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3D Point Cloud
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3D Mesh Model
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Point Cloud to Mesh Model
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3D Electric Pole
Point Cloud Point Cloud + Mesh Model Mesh Model
Mesh Model of electricity pole Joint
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Electrical Structure
Point Cloud
Point Cloud + Mesh Model
Mesh Model
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Over Bridge
Point Cloud
Mesh Model
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Over Bridge: Mesh Model
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Railway Station
Final Rendered 3D Model
Final Rendered 3D Model
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Thank you
By
--- Dr. Kamal Jain,
Professor, Department of Civil Engineering,
IIT Roorkee, Roorkee -247667
Mobile: (+91) 9760026284
Email: [email protected]