SUCCESS STORY
Unmanned Surface Vehicle

Sonar Motion Compensation & Data Georeferencing
SeaRobotics has selected the Ekinox-E inertial navigation system to equip the USV 2.5, a small Unmanned
Surface Vehicle tuned for the Center for Marine Science and Technology at North Carolina State University.

SeaRobotics
isspecialized
insmart vessels that are remotely orautonomously-operated. The USV 2.5
is a 2.5 meter long Unmanned Surface
Vehicle that offers a broad range
instrumentation, with the flexibility toswap sensing payloads based on thedemands of the mission.

USV EQUIPMENTCLIENTSEA ROBOTICSAPPLICATION

USV-based Bathymetry

The USV 2.5 has been delivered to theCenter for Marine Science and Technology
at North Carolina State University.
The USV integrates an Edgetech 6205,
an innovative SwathBathymetric andSimultaneous Dual Frequency Side ScanSonar System, a sound velocity probe,
the highly flexible inertial navigation
system Ekinox-E from SBG Systems
connected to a dual antenna RTK GPS
from Hemisphere, and HYPACK software.

Given the diverse capabilities of theUSV, it will be utilized as both anexperiential-based teaching tool andto conduct basic and applied researchin lake, river, estuary and costal
environments. “The USV will be used
for seabed and water column mapping
critical to an improved understanding ofvarious marine and aquatic processes,
including ecosystems dynamics, water
quality, and shoreline stability,” stated
Del Bohnenstiehl, principal investigatoron the project.

A COMPACT & SURVEY-GRADEINERTIAL NAVIGATION SYSTEM“The Ekinox-E inertial navigation
system from SBG was an easy choicefor the USV 2.5” stated Geoff Douglass,Development Manager at SeaRobotics.
“When compared to competing

PRODUCT

Ekinox-E Inertial Navigation
SystemPROJECT« The Ekinox-E allows us to streamline system integration
while still providing customers the ability to acquire andprocess high resolution bathymetry. »Motion Compensation &Georeferencing

Geoff Douglass, Development Manager at SeaRobotics Corp.

SUCCESS STORY - USV-based Surveying
products with similar resolution, theEkinox is much simpler to integrate
because of its compact form factor. On
small unmanned surface vehicles (USVs)
available payload (weight, footprint,power, I/O) is the most precious asset.
The Ekinox-E allows us to streamline
system integration while still providing
customers the ability to acquire andprocess high resolution bathymetry”,
added Geoff.

USV 2.5, the smallest USV from SeaRobotics

EKINOX-E, A SMART BALANCEBETWEEN SIZE, WEIGHT, AND
PRICE

Ekinox

also

providesoutstanding

AUTHORS
Geoff Douglass from SeaRobotics
Corp.
Hélène LEPLOMB from SBG Systems
November 2016

heave computation with a real-timeheave accurate to 5 cm and a delayed
heave reaching a 2.5 cm accuracy. The
delayed heave is an advanced algorithm
processed onboard with a more extensive
calculation. It results in a heave accurate
to 2.5 cm displayed in real-time with alittle delay.

“On small Unmanned Surface
Vehicles available payload(weight, footprint, power, I/O) isthe most precious asset.”

Ekinox-E integrates a data logger andis compatible with all hydrographic
software, a smart solution forhydrographic applications.

Geoff Douglass, SeaRobotics Corp.

EKINOX-E KEY FEATURESABOUT SEAROBOTICS» Connect to external GNSS receiver for a realtime data fusion of inertial and position
information

We specialize in smart vessels that are remotely or autonomouslyoperated. Our clients include major military and commercialorganizations, US and foreign. SRC’s seasoned marine survey
software interfaces with most data acquisition hardware,software and sensing systems. Many of our vessels are small,modular, and man-portable, allowing rapid deployment in remoteareas or deployment by larger vessels. Our command and control
systems are user-friendly and compact, allowing backpack
mobilization. Applications for our vessels range from: bathymetricand hydrographic surveys through coastal, harbor and riverine
surveillance.

» 300 grams, 3 WATT power consumption» Survey-grade Performance» Internal Data Logger

Contact:
info@searobotics.com
http://www.searobotics.com

www.sbg-systems.com

SBG Systems EMEA (Headquarters)
Phone: +33 1 80 88 45 00
E-mail: sales@sbg-systems.com

SBG Systems North America
Phone: +1 (657) 845-1771
E-mail: sales.usa@sbg-systems.com

V1.0 – November 2016 – All rights reserved © 2016 SBG Systems

Ekinox-E is a high accuracy and costeffective inertial system which accepts
aiding data from any external GNSS
receiver (in this case, a Hemisphere) toprovide roll, pitch, heading, position,and heave data for multibeam sonar
compensation and georeferencing. This
extremely versatile inertial navigation
system (INS) weights only 300 grams
and consumes less than 3 Watts while
delivering an attitude accurate to 0.05°.

Bathymetry data collected with the USV 2.5