33 unmanned systems
inside
April/May 2017
ENGINEERING. PRACTICE. POLICY.
roscopes and a single GPS receiver—ideal for
applications where there's dynamic movement,
such as a moving UAS, boat or automobile. The
system takes measurements from the GPS,
gyroscopes and accelerometers and, with help
from the Kalman filter algorithm, derives po-
sition, velocity and attitude.
The challenge for Fagerman's UAS-based
mobile LiDAR solution is what happens in low
dynamic or static conditions, such as when a
UAS is hovering. That's where VectorNav's sub-
sequent release of the VN-300 Dual-Antenna
GPS-Aided Inertial Navigation System (INS)
came into play. At a lightweight 30 grams and
a size not much larger than a postage stamp,
the VN-300 builds on the VN-200 architecture
by incorporating two GNSS receivers. Two GPS
antennas connected to the VN-300 spaced a
certain distance apart and carrier phase inter-
ferometry enable the VN-300 to estimate the
heading solely from GPS signal measurements
when the vehicle is stationary.
The VN-300 combination was exactly right
for Fagerman's ScanLook Revolution. Besides
the VN-300 INS, the low-cost LiDAR map-
ping product incorporates a LiDAR scanner,
onboard data logging and WiFi interface for
remote control and provides sub-meter preci-
sion—an accuracy that is suitable for a range of
applications where relative position measure-
ment, rather than absolute centimeter-level
position measurement, is a factor. For exam-
ple, powerline encroachment is an important
application because a utility company doesn't
need to have a high level of accuracy to make
an assessment, Fagerman added.
The company believes the law enforcement
market may be a good fit for this technology
"WITH [SCANLOOK
REVOLUTION],
it's one time down the
street and surveyors
get all curb and gutter
measurements, all the
mailboxes, all the fire
hydrants."
Jeff Fagerman, CEO of LiDAR
USA
HÉLICÉO CREATED THE DRONEBOX TECHNOLOGY in order to meet the demands of professionals for multiple applications.
This "Plug & Play" device is adaptable across Hélicéo's entire range of products, allowing you to perform precision measurement
with multiple vehicles and sensors while reducing your investment.
Dronebox RTK 1
Mapping and
Photogrammetry
Applications
6
www.heliceo.com contact@heliceo.fr
Aerial. Terrestrial. Bathymetric.