3d hydrographic mapping for real-time underwater assessment · 2014-12-03 · 3d hydrographic...
TRANSCRIPT
3D Hydrographic Mapping for
Real-Time Underwater Assessment Blair Cunningham, President of Technology
Lakeland, Florida
Marine Products Solution Experts
Edinburgh, UK Portland, UK
Bergen, Norway
Lakeland, FL
Salt Lake City, UT
Perth, Australia
Over 70 engineers within the global business
Coda Octopus Engineering site
Coda Octopus Products site
Presentation Overview
3D Hydrographic Mapping for Real-Time
Underwater Assessment
• What is Real-Time 3D Sonar?
• New Methodology for 3D Mapping!
• 3D Real-Time Mapping User Applications • Real-Time Marine/Coastal Infrastructure Assessment
• Real-Time Subsea asset assessment and monitoring during construction
• Debris and Obstacle Avoidance
• Water Column observations
• Summary
Presentation Overview
3D Hydrographic Mapping for Real-Time
Underwater Assessment
What is Real-Time 3D Sonar?
Multi-beam sonar has a narrow across-track swath that is prone to shadows in complex environments
3D Real-Time Sonar (Echoscope® and Dimension®) have a volumetric pulse with
typically 50°x 50°swath
3D Real-Time Sonar produces massive data
redundancy and shadow reduction in complex
environments
What is Real-Time 3D Sonar?
ONE sonar, TWO unique technologies, UNLIMITED applications
Two 3D Visualisation Modes
3D Camera Mode 3D Complex Mapping
Presentation Overview
3D Hydrographic Mapping for Real-Time
Underwater Assessment
New Methodology for 3D Mapping!
“Dynamic Survey”
Real-Time 3D Dynamic Survey
Low ROI
Real-Time 3D is currently not suitable for
large area hydrographic survey
due to limited across track swath
Excellent ROI
Inspection
High Density
Mapping
Monitoring
3D Real-Time technology IS revolutionary and a change agent by significantly improving the typical underwater construction process model of:
Survey provides the pre and post data to the process, but is typically not involved during the execution phase of construction or inspection tasks.
Survey Process
Data
Planning Execute
Task Survey Process
Data
Review
Real-Time 3D Dynamic Survey
--------------------------- Survey not involved -----------
Survey Planning
Execute Task
Monitor
Real-Time 3D Dynamic Survey
Saving TIME and MONEY, and improving SAFETY and QUALITY
…to a more efficient, activity and results driven Dynamic Survey process of:
Survey now 100% involved
Real-Time 3D Dynamic Survey
What does this mean in practice and what are the key benefits?
We can continuously update the base survey map with real-time pre & post discrete
survey data
We no longer have to “Mow the lawn” – instead we can Stop, Start and Loiter with full real-time 3D
With unprecedented data density we can take non-conventional survey paths for shadow infill and full complex structure assessment
We can see moving objects in 3D real-time - even superimposed over our near-real-time map and combined with static and moving 3D CGI models
SLEEPER PLACEMENT BACKGROUND Zakum Development Company (ZADCO) Award National Petroleum Construction Company the
Upper Zakum 750 Oilfield Expansion project
32 Pipelines, 400 Crossing Points and 2,500 Concrete Sleeper to be placed on the seabed from
twin barges
GOALS and OBJECTIVES Maximize Productivity
Enhance Safety Deliver project to highest standard
Pre and Post Survey Data As Built/Design Comparison
Real-Time 3D Dynamic Survey: Case Study
EXISTING METHODOLOGY GAPS Beacons and TOGs Gyro on Sleepers
to gain position and orientation results
Multiple divers (6) used per sleeper during placement operations
Deployment Rate typically 1 (one) sleeper
every 2 hours (Maximum 6 sleepers per day)
Shift limited to 12 operational hours due to diver requirement
Separate multibeam survey required for pre-
survey and post-survey deliverable
Pipelay Vessel PLB648
Real-Time 3D Dynamic Survey: Case Study
New Methodology – Echoscope®
3D Real Time Sonar to dynamically monitor deployment.
3D models inserted into the
scene for guiding and placement.
Accuracy & Efficiency Nominated ranges & tolerances met
Improved Safety
Divers now used for Quality Control
Productivity Increase Up to 76 Sleepers placed in 1 day
compared to 6 sleepers
Real-Time 3D Dynamic Survey: Case Study
Real-Time 3D Dynamic Survey: Case Study New Methodology – Echoscope®
PRE and POST survey data is collected by
the Echoscope mounted on the barge during transit TO and FROM each sleeper
location.
Real-Time 3D Dynamic Survey: Case Study
Move to new Location
Collect Pre-Sleeper Survey
Inspect Target area and adjust design
Monitor sleeper placement
Collect Post-Sleeper survey
Presentation Overview
3D Hydrographic Mapping for Real-Time
Underwater Assessment
3D Real-Time Mapping User Applications Real-Time Marine/Coastal Infrastructure Assessment
Real-Time Subsea asset assessment and monitoring during construction
Debris and Obstacle Avoidance
Search, Rescue, Recovery and Identification
Water Column observations
Applications:Real-Time Marine/Coastal Infrastructure Assessment
• Real-time 3D Image • Divers on-board • Client on-board • Real-Time Recovery plan • 3D assisted dive
2 minute critical infrastructure assessment…..
Applications:Real-Time Subsea asset assessment and monitoring
Echoscope® Instant Results
NO Post-Processing
Applications:Subsea asset assessment & construction monitoring
• Real-time 3D Image • Position Dredge Tool • Monitor Progress • Dredge to Surface • Monitor collapses • Volumetric
calculation and bathymetry
Applications:Subsea asset assessment & construction monitoring
Applications:Subsea asset assessment & construction monitoring
We have successfully applied the technique of overlay models for guidance in cable lay projects and touch down monitoring.
MATTRESS INSTALLATION PROCESS CHANGE
The process workflow below shows the pre-Echoscope methodology
…and below, the Echoscope derived
process with all active tasking's in parallel for significant real-time
improvement
Applications:Subsea asset assessment & construction monitoring
Applications:Debris and Obstacle Avoidance
Presentation Overview
3D Hydrographic Mapping for Real-Time
Underwater Assessment
Summary
Presentation Overview
Summary of Using Real-Time 3D
Survey have the opportunity to play a complete workflow role in a wide variety of construction and complex monitoring projects
Wider team involvement with users understanding more from the high resolution images, and the engineers still can get what they need…
Engineering Image is the key not just the bathymetric data
Instant verification, speed of assessment, prevent rework and full 3D deliverables
For more information contact:
Blair Cunningham, President of Technology
Tel: +1 (863) 937-8985