3D Hydrographic Mapping for Real-Time Underwater Assessment · 2014-12-03 · 3D Hydrographic...

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




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




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


--------------------------- Survey not involved -----------

Survey Planning

Execute Task

Monitor


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


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


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 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.


Move to new Location

Collect Pre-Sleeper Survey

Inspect Target area and adjust design

Monitor sleeper placement

Collect Post-Sleeper survey




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


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:Debris and Obstacle Avoidance




Summary


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

[email protected]

Tel: +1 (863) 937-8985

3D Hydrographic Mapping for Real-Time Underwater Assessment · 2014-12-03 · 3D Hydrographic...

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Transcript of 3D Hydrographic Mapping for Real-Time Underwater Assessment · 2014-12-03 · 3D Hydrographic...