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Der nächste Schritt
auf dem Weg
zur Serienreife:
Integration des Systems
bei einem Pilotkunden
The basic idea was to find a solution
for the 33 distribution centres of Deutsche
Post World Net AG. Within the industrial
project „Paketroboter“, a complex system
is now being developed, easily capable
of being used in other areas, e.g. for
unloading overseas containers: The robot
can unload loose, standardized parcels
autonomously. The system is being
developed by BIBA’s research division IPS
in cooperation with Deutsche Post and
EADS SPACE Transportation. The specific
technical challenge in the project is the
combination of the individual components
into a working overall system.
A 3D-Laserscanner scans the parcel
position in the container. The scanned
image is then transferred to a PC, where
the coordinates for the gripper of the
robot are determined. These calculations
are possible with a control and image
processing software developed particularly
for this purpose by EADS Space
Transportation.
Controlled in such a manner, the
gripper takes up cubic parcels of different
sizes with a weight of up to 31.5 kilograms
and deposits them on a conveyor belt. If
the parcels are outside of the robot‘s work
range, the robot drives independently
on the platform to the optimal location
and continues to unload. The platform
is coupled with a telescope conveyor,
which pushes the robot into the container
whenever it is necessary.
In different test runs as well as in a feasibility
study, the basic conditions for the
unloading process, the functionality of the
system and the economic aspects were
examined. These tests are evidence for
the large potential of the development.
After a test phase on the test rig at
BIBA, the robot system was installed in
the distribution centre Bremen of Deutsche
Post AG. Here, the focus was on
the integration into the existing logistics
processes. At a second test rig at BIBA,
the project team developed additional
grippers, tested industrial robots from
different manufacturers and examined
further applications for the system. The
result of these two test applications: By
using an articulated robot, the process
speed is reduced substantially and is thus
inefficient.
In the fourth project phase, the
project team developed a now patented
robot system that unloads parcels
faster, more reliably and therefore more
efficiently. The hybrid robot system with 6
axles and a special control developed
particularly for this purpose is designed
by Strothmann. It was built exclusively for
these tasks and facilitates transport of the
parcels: no more 180°- rotations, as required
by the articulated robot -, instead,
the new system works with linear motion,
seizes the parcels and deposits them on
the conveyor belt. This procedure is not
only faster, it also features high process
security.
For now, the system „Paketroboter“
is still a prototype. In a next step on its
way to the maturity phase, the system
will be integrated in a pilot customer’s
system. According to plan, the product
will be launched on the market. Potential
customers include national and international
companies, who still unload loose
standardized packaged goods from
containers manually.
Nicole Pfeffermann
19