The Remote Operated Vehicle Unit, or
R.O.V. for short, is part of the
Marine Unit. The unit currently
consists of 5 R.O.V. operators. The
operators have full time duties
throughout the agency and the R.O.V.
unit is one of their collateral
duties. The R.O.V. is equipped with
several tools that can be used
separately or together to complete a
mission. The R.O.V. has a sonar unit
that allows the operators to ‘see’
in black water such as the Cape Fear
River. The unit also has a
manipulator or ‘hand’ that can grab
on to or pick things up while
underwater. Inside the housing is a
high definition camera. The camera
can pan up and down as well as zoom
in and out. The camera and sonar
images can be recorded as video or
still shots. Included with the unit
is a ‘smart tether’, this section of
tether lets the operator know where
the R.O.V. is but also where it has
been. The tether does this through
the onboard technology of
accelerometers, depth sensors and
magnetometers placed at intervals
along the tether.
The R.O.V. can be deployed for hours
on end, unlike a diver that will
have to surface after just twenty
minutes. The R.O.V. can be used to
search an area, pinpoint an item for
recovery and actually be used to
lead the diver to the object. If the
object isn’t too big or heavy, the
R.O.V. can be used to recover the
object by bringing the item to the
surface with its manipulator. The
R.O.V. is powered from the surface
so there are no batteries to wear
out or recharge. The R.O.V. can run
as long as there is an operator to
control it.
The R.O.V. Unit has responded to
calls within the county but will
also respond to request from other
agencies and has already assisted
the NC Wildlife Resource Commission
with underwater images of the new
boat ramp in Castle Hayne. The
equipment will be housed in and
operated out of the Dive Unit
trailer. The operators can sit
inside the trailer while the tether
handler will be at the waters edge.
Portable radios are used for
communications between the operators
and the tether handlers.
The Marine Unit assists many other
agencies including federal, state
and local agencies throughout the
region, such as the U.S. Coast
Guard, the U.S. Navy, State Bureau
of Investigations, NC State Port
Authority, Duplin County Sheriff’s
Office and Columbus County Sheriff’s
Office. The Marine Unit is ready to
respond 24 hours a day, 7 days a
week>