Virtual Environment:
Once the previous steps have been completed and the
kinematics is programmed, the next step is to implement it in
the virtual environment that includes; manipulator design, data
showing and path following visualization.
In order to successfully carry out the simulation, it is
necessary to have a Matlab 2009 version that includes the full
3D animation library.
Manipulator design:
Here, the prototype is loaded by using the VR Sink
block, where the model can be edited using the VRML editor.
Due to the fact that the robot coming from the
mechanical system is different to the assembly, the operations
on the transformation from one link to other is different in this
editor, therefore it is necessary to perform the next tasks:
• Identify each links of the manipulator.
• Leave only 2 main transformations:
o
The transformation on the base which won’t be
moved;
o
The link transformation where the movement chain is
performed to get the mathematical parameters (this is
variable depending on the robot to be used).
Text Visualization:
To obtain the real-time data from the manipulator, we can
use the VR Text Output.
It is necessary to reference the virtual environment, also to
introduce the variable names to be shown together with the
variable format.
Path Following Visualization:
To show the path that the robot follows in the simulation
process, it is necessary that the desired target as well as the
real target to be connected to the block named V Tracer.
We need to connect x, y and z for the data acquisition. The
type of path to be followed is selected and projected on the
virtual environment; also, it is necessary to reference the name
of the transformations in the manipulator’s design block to be
represented in the workspace.
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