SIEMENS
5/16
Siemens CR 1 · 2015
5
SIMOCRANE application examples
Semi-automatic STS crane
■
Application
This application example describes a solution for automatic
loading and unloading a load on and off a terminal vehicle using
the SIMOCRANE technology.
Application example
The positioning system must assist the truck driver when parking
with the aid of a simple "traffic light" control. A traffic light visible
to the truck driver is mounted at each corner of the crane. The
crane driver operates the system and specifies the lanes for
loading and the direction of travel of the truck. The working area
between the lanes is 32 m in total and has seven lanes. On the
basis of the presets for lane and direction of travel, the system
must be able to position different trucks and trailers indepen-
dently.
A positioning system must assist the crane driver when setting
down and picking up the containers. The journey from the ship
to the selected working lane and vice versa must be completed
automatically and in the shortest possible time. For safety rea-
sons, the spreader must always stop at a safe height. Automatic
travel should be possible without a teach-in journey. The crane
driver is responsible for lowering the load from the safe height
and making the correct system settings, for example, for stack-
ing type or working lane. The crane driver must be able at any
time to interrupt automatic travel of the trolley and hoisting gear.
The transitions from automatic to manual travel and vice versa
should be performed smoothly.
Solution
The application example formulated above can be implemented
using SIMOCRANE products in combination with a crane appli-
cation. For this application example, the products and their func-
tions described below are put to use.
Basic function:
•
STS crane basic functions
SIMOCRANE Basic Technology
forms the basis for this
application and controls the standard motion control functions
of hoist and trolley.
•
Crane Management System – SIMOCRANE CMS
SIMOCRANE CMS records faults and operating data and
allows parameters to be set for crane operation.
There is a touch panel PC in the driver's cab that allows the
crane driver to activate commands or display operating data
and operating states.
Procedure
1. Controlled parking of a truck
SIMOCRANE TPS is used to detect an approaching truck and to
determine the exact target position. The driver is guided to the
target position using a signaling system (e.g. traffic light).
TPS – Parking procedure
2. Precise target position measurement for the parking truck
Parking is still performed manually by means of the parking
attendant. For this reason, after parking, precise measurement
of the truck is necessary. This is also performed by
SIMOCRANE TPS. The precise target coordinates determined
(X, Y, Z and angle of rotation) are transferred to the crane con-
troller.
TPS – Position determination/target measurement
Note
:
The determined coordinates must be converted to a crane coor-
dinate system on the application side in the crane controller!
© Siemens AG 2015