Agriculture,
Год журнала:
2023,
Номер
14(1), С. 65 - 65
Опубликована: Дек. 29, 2023
In
the
context
of
automatic
driving,
analysis
steering
motion
characteristics
is
critical
for
enhancing
efficiency
crawler
harvesters.
To
address
issues
such
as
low
transmission
and
large
radius
encountered
by
traditional
harvesters
featuring
hydrostatic
drives,
a
driven
harvester
chassis
was
designed.
This
involved
system
structure
its
under
several
conditions,
including
differential
steering,
direction
reversal,
unilateral
braking
steering.
The
parameters
were
determined
based
on
real-time
kinematic
positioning–global
navigation
satellite
(RTK-GNSS)
measurements,
they
compared
with
theoretical
predictions
kinematics.
slip
rates
modified
models
various
modes
then
obtained.
results
indicated
that
increase
in
ratio
between
running
input
speeds
led
to
larger
track
radii
smaller
average
rotational
angular
velocities.
Remarkably,
slopes
linear
fits
tracked
varied
significantly
reversal
modes.
Compared
actual
results,
correlation
coefficient
fitting
model
close
1.
parameter
deemed
suitable
operational
requirements.
provide
valuable
reference
designing
operating
different
road
surfaces.
INMATEH Agricultural Engineering,
Год журнала:
2024,
Номер
unknown, С. 358 - 369
Опубликована: Дек. 13, 2024
Most
existing
grain
flow
sensors
are
designed
for
paddle-type
elevators,
with
limited
focus
on
applications
in
auger
elevators.
This
paper
addresses
the
yield
monitoring
needs
during
rice
harvesting
operations,
specifically
targeting
auger-based
outlets
through
experimental
research.
An
array-type
differential
sensor
was
developed
and
an
indoor
test
bench
constructed
to
evaluate
its
performance.
The
study
compares
effectiveness
of
time-domain
frequency-domain
processing,
alongside
various
filtering
methods,
pre-processing
sensor’s
raw
signals.
Additionally,
a
regression
model
built
using
Random
Forest
algorithm.
Experimental
results
demonstrated
that
errors
field
tests
ranged
from
-6.42%
8.23%,
indicating
met
requirements
monitoring.
provides
valuable
data
feed
rate
detection,
speed
regulation,
adjustments
threshing
cleaning
systems
combine
harvesters,
offering
significant
practical
implications
promotion
development
precision
agriculture.
Agriculture,
Год журнала:
2023,
Номер
14(1), С. 65 - 65
Опубликована: Дек. 29, 2023
In
the
context
of
automatic
driving,
analysis
steering
motion
characteristics
is
critical
for
enhancing
efficiency
crawler
harvesters.
To
address
issues
such
as
low
transmission
and
large
radius
encountered
by
traditional
harvesters
featuring
hydrostatic
drives,
a
driven
harvester
chassis
was
designed.
This
involved
system
structure
its
under
several
conditions,
including
differential
steering,
direction
reversal,
unilateral
braking
steering.
The
parameters
were
determined
based
on
real-time
kinematic
positioning–global
navigation
satellite
(RTK-GNSS)
measurements,
they
compared
with
theoretical
predictions
kinematics.
slip
rates
modified
models
various
modes
then
obtained.
results
indicated
that
increase
in
ratio
between
running
input
speeds
led
to
larger
track
radii
smaller
average
rotational
angular
velocities.
Remarkably,
slopes
linear
fits
tracked
varied
significantly
reversal
modes.
Compared
actual
results,
correlation
coefficient
fitting
model
close
1.
parameter
deemed
suitable
operational
requirements.
provide
valuable
reference
designing
operating
different
road
surfaces.
