Topside Innovations

Ellen StuifbergenRESON B.V.

Booth 3.301

Ellen Stuifbergen

• Joined in 1993 NeSA RACAL• Geodetic and Hydrographic surveyor• RTK-GPS , MB, PDS1000/2000• Sales Manager Software• RESON bought former NeSA in 2004

Topside innovations

• Why (topside) innovations• Innovations in hardware• Innovations in software

Why invest in your system?

• Cost reduction • Efficiency• Less time processing• Newest development and technology

Why invest in your topside system?• Improve the Survey quality with minimum

investment and benefit from the 4 items above!

Hardware innovations

• Positioning system• VRU• Multibeam system

Positioning innovation

Use RTK positioning instead of DGPS• Improves position

– DGPS : 1 - 0,5 m accuracy– RTK : 3 - 5 cm accuracy

• Better and more reliable Calibration Values

Positioning innovation

RTK Height improvement:• Provides accurate tidal reduction

– Tidal station 0,1 – 0,5 m– RTK : 5 cm

• Squat reduction• Draft changes included in RTK height• Delta Heave

DGPS

Tide gauge

Depth

RTK

Offset

Depth

DGPS

Offset

Depth at local datum:Tide + Sealevel offset – MB offset - Depth

Depth at local datum:RTK height -offset GPS – offset MB - Depth

RTK

Motion sensor

• Aid with GPS and heading • Big improvement:

– Invest in systems as PosMV with combined positioning, MRU and heading

• Otherwise: Wait 2 minutes after the turn to settle the system

Example of PosMV and SMC

Multibeam system

• Top side innovation of RESON• Minimum investment for up-to-date system• Head is the same 8101 or 8125• Topside (processor) is new

Upgrade of SeaBat systems to new software

• The SeaBat 7K series systems are focussing on collecting high quality of data and high productivity

• Automatic operation• Adaptive filtering • Roll stabilisation• Water column data• Variable beam modes

SeaBat 7K – Automatic Operation (Autopilot)• Sonar chooses real time the correct range setting • Settings for pulse applied from a look-up table• Provides best possible range depending on

waterdepth and swath width• Improves data pingrate• Table User definable• Less operator intervention• Better efficiency for monitoring complete survey

system• Less chance of data loss due to incorrect range

setting• Increased operational efficiency

SeaBat 7K - Adaptive Gates• SeaBat 7K incorporates Adaptive Gates

– Gates automatically fit around sea floor profile– Improves online data quality leading to faster processing– Reduced risk of re-survey due to data loss– Settings include bandwidth: 30% for 20 m waterdepth– Adaptive gates used with Autopilot means full automatic control

Fixed Gates AdaptiveGates

SeaBat 7K - Adaptive Gates

Roll stabilisation

SECURITY DESIGNATION

65m

105m

Imagery bathymetry uncertainty Beam spacing hardware environment acoustic

7101 data11 lines along the river

Vari Swath width on the fly

Old Beam modes

• Equi-angle • Equiangle

• Equidistance

• FlexMode

• Wide mode

New Beam modes

Wide mode• Number of beams & beam mode are fixed according to the system in use. • Wide mode uses EA only• Used for maximum swath• Quay wall or vertical structure survey

7125165°

512 beams EA

7101210°

511 beams EA

7125

7101

Flex mode

30%

Total swath

High densitysector

Low densitysector

Low densitysector

Default settingsTotal swath: 90 deg

High density sector: 45 deg centredAltitude: 5m

DTM density 0.1m

Controls• Using the mouse the operator

may adjust the following:– Total swath width– Hi resolution sector position &

width– Overall swath steering

• Used for:– Breakwaters– Pipelines– Quayside– Tripods– etc

256 EA beams

9 hits on the pipe

Flex mode512 beams

100 hits

Software innovations - General

• Use the latest versions • Use the new tools provided• Use quality checks on line• Improved Calibration tools• Speed up your processing

• New MBES editing module• New Grid model editor

• Sonar and snippet target creation• Enhanced Pipetracking algoritm

• Spreading factor for excavator dredging• Measurement with bucket tool tip

New tools - use it!PDS2000 Release 3.7

Use your software!Placement of caissons storm barrier Venice lagune

Multibeam combined with Laser Scanner

Calibration MBES data

Calibration Laser data

SVP profile editor

• Selection up/down cast in SVP editor + graphical edit function

• New editor to correct for possible SVP errors

• Allows the user to adjust existing profile or add a new profile in the data file

• Visualization of single file or multiple files

• Dedicated module in PDS2000 (option)• Algorithm based on Geocoder• Incorporate normalized backscatter mosaicing

from snippet data• Calibration performed on sand

PDS2000-Bottom classification

Calibration snippet for Bottom Classification

Bottom classification examples

Course sand

Samples taken during SAT with client

Clay

Fine Sand

Medium sand

Backscatter mosaic

Thank you

Hal 3: booth 3301