Maritime Policy & Management,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 19
Published: Nov. 26, 2024
This
paper
presents
an
innovative
integration
of
topographic
statistics
with
automatic
identification
system
data
to
identify
the
distribution
conventionally
formed
maritime
routes.
methodology
utilizes
navigation
frequency
precisely
discern
locations
and
linear
A
key
strength
lies
in
explicit
crucial
points
connectivity,
including
intersections
confluences,
which
contribute
construction
route
networks.
advantage
becomes
evident
by
providing
a
nuanced
depiction
individual
centerlines
detailed
spatial
representation
based
on
quantitative
evidence
vessel
conventions.
enhances
accuracy
identifying
major
routes
facilitates
their
precise
location
distribution,
is
particularly
adept
at
supporting
establishment
management,
provides
for
points,
such
as
confluence
areas.
In
addition
conventional
applications,
this
safety,
contributes
effective
marine
management
policies,
identifies
suitable
new
activities,
resolves
potential
conflicts.
Naše more,
Journal Year:
2024,
Volume and Issue:
71(1), P. 21 - 29
Published: May 1, 2024
High-speed
passenger
vessels,
integrated
river
and
sea
container
oil
tankers,
other
underwater
vehicles
operating
in
maritime
traffic
are
among
the
types
of
vessels
that
must
be
equipped
with
AIS
VHF.
The
safety
navigation
is
one
major
problems
sector,
particularly
Vietnam.
Furthermore,
marine
seaport
zone
a
common
difficult
issue
to
manage
areas
high
volume
vessel
traffic,
mostly
places
where
infrastructure
supporting
inadequately
developed
meet
rapidly
growing
demands
contemporary
world.
Therefore,
it
necessary
create
an
management
system
improve
efficiency
data
exploitation
support
safety.
To
address
this
challenge,
study
suggests
Maritime
Traffic
State
Prediction
(MTSP)
model
predict
conditions
channels
real-time
collection
insufficient
some
specific
locations.
We
recommend
deep
learning
method
using
Long
Short-Term
Memory
(LSTM)
networks
safe
path
case
missing
segments.
findings
have
shown
proposed
approach
encourages
mining
historical
for
ready
applied,
can
easily
implemented
computer
program
or
web-based
app.
PLoS ONE,
Journal Year:
2024,
Volume and Issue:
19(10), P. e0310385 - e0310385
Published: Oct. 24, 2024
Predicting
ship
trajectories
can
effectively
forecast
navigation
trends
and
enable
the
orderly
management
of
ships,
which
holds
immense
significance
for
maritime
traffic
safety.
This
paper
introduces
a
novel
trajectory
prediction
method
utilizing
Convolutional
Neural
Network
(CNN),
Deep
(DNN),
Long
Short-Term
Memory
(LSTM),
Gated
Recurrent
Unit
(GRU).
Our
research
comprises
two
main
parts:
first
involves
preprocessing
large
raw
AIS
dataset
to
extract
features,
second
focuses
on
prediction.
We
emphasize
specialized
approach
tailored
data,
including
advanced
filtering
techniques
remove
outliers
erroneous
data
points,
incorporation
contextual
information
such
as
environmental
conditions
ship-specific
characteristics.
deep
learning
models
utilize
sourced
from
Automatic
Identification
System
(AIS)
train
learn
regular
patterns
within
enabling
them
predict
next
hour.
Experimental
results
reveal
that
CNN
has
substantially
reduced
Mean
Absolute
Error
(MAE)
Square
(MSE)
prediction,
showcasing
superior
performance
compared
other
algorithms.
Additionally,
comparative
analysis
with
models—Recurrent
(RNN),
GRU,
LSTM,
DBS-LSTM—using
metrics
Average
Displacement
(ADE),
Final
(FDE),
Non-Linear
ADE
(NL-ADE),
demonstrates
our
method’s
robustness
accuracy.
not
only
cleans
but
also
enriches
it,
providing
robust
foundation
subsequent
applications
in
improvement
enhances
accuracy
promising
advancements
Ocean Engineering,
Journal Year:
2023,
Volume and Issue:
291, P. 116243 - 116243
Published: Dec. 3, 2023
This
paper
investigates
the
influence
of
sea
severity
and
mooring
line
pretension
configuration
on
operability
a
moored
vessel
at
modified
berthing
site
inside
port.
A
physical
model
was
constructed
to
replicate
new
layout
port
Leixões
in
Portugal,
including
bathymetry
future
300
m
extension
Leixões'
north
breakwater.
tanker
ship
tested
with
novel
custom-made
system
simulators
for
two
fenders
four
lines
under
various
offshore
states
configurations.
The
experiments
focus
acquiring
wave
measurements
multiple
spots
within
port,
motions,
loads
fenders.
data
is
analysed
time
frequency
domains
examine
relationship
between
waves,
loads.
results
are
then
compared
standard
operational
thresholds
estimate
downtime
cargo
loading
operations.
analysis
yields
several
conclusions.
It
recommended
use
zero-peak
amplitudes
conjunction
maximum
peak-to-peak
ensure
accurate
analysis.
application
small-scale
modelling
useful
tool
not
only
investigating
feasibility
modifications
existing
sheltering
structures
but
also
analysing
additional
soft
countermeasures
strengthen
conditions
berth.
provides
site-specific
experimental
that
may
help
develop
safety
criteria.
applied
reduce
costs.
Journal of Marine Science and Engineering,
Journal Year:
2023,
Volume and Issue:
11(12), P. 2331 - 2331
Published: Dec. 9, 2023
This
paper
focuses
predominantly
on
the
multi-tasks
carried
out
by
cooperative
unmanned
surface
vehicle-unmanned
aerial
vehicle
(USV-UAV)
system
in
which
input
quantization
is
considered.
The
proposed
scheme
consists
of
asynchronous
separate
guidance
and
adaptive
fuzzy
quantized
control
algorithm.
law
takes
full
advantage
subsystems
whilst
considering
maneuverability
these
order
to
achieve
goal
executing
multi-tasks.
In
contrast
previous
laws,
although
same
waypoint
path
planned,
calculation
for
based
speed
rather
than
time,
reality
more
relevant.
As
controls,
an
controller
was
developed
reduce
undue
exertion
actuator.
By
fusing
dynamic
(DSC)
logic
(FLS),
a
hysteresis
quantizer
has
been
introduced
transmission
load.
properly
adjusting
density,
number
quantizations
reduced
maintaining
favorable
performance.
All
stated
variables
are
semi-global
uniform
ultimate
bounded
(SGUUB)
stability
USV-UAV
proofed
through
Lyapunov
theorem.
Finally,
advantages
evaluated
two
simulative
experiments,
exhibiting
tracking
accuracy
wear
actuators.