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VisSim is an award
winning program for the modeling and simulation of complex dynamic
systems. This includes the ability to construct and simulate block
diagrams. The visual block diagram interface offers a simple method for
constructing, modifying and maintaining complex system models. The
simulation engine provides fast and accurate solutions for linear,
nonlinear, continuous time, discrete time, time varying and hybrid
system designs. With VisSim, users can quickly develop software or
"virtual" prototypes of systems or processes to demonstrate their
behavior prior to building physical prototypes. Built-in integration
tools allow users to communicate seamlessly with
MATLAB and
Mathcad. A
VisSim/SIMULINK Translator™
allows SIMULINK users to import SIMULINK block diagrams directly into
VisSim.
The user builds his system model by selecting
predefined blocks from a block library and simply wiring the blocks
together. Each block of the diagram performs a function. Users can also
create custom blocks in C, Fortran or Pascal and add them to the VisSim
block library. After the model is built, you click the "Go" button and
the results of the simulation are interactively displayed.
Once the behavior of the system model is
understood, often the next step is to develop a "software" controller
that will control the behavior of the model and eventually the physical
system itself. In the above example, a motion control engineer developed
a system model of an AC Induction Motor and then developed a "software"
PID controller to control the torque, velocity and position of the
motor.
The core product,
VisSim, is used for
general modeling, simulation and control system design applications.
VisSim product options include
VisSim/Analyze™, for frequency domain analysis, and
VisSim/Real-Time™,
for real-time hardware-in-the-loop validation.
The addition of a comprehensive library of
communication blocks to the core VisSim product results in a product
called VisSim/Comm - an
integrated solution for the modeling and simulation of analog, digital
or mixed-mode, end-to-end communication systems. Pre-built blocks like
signal sources, encoders/decoders, modulators/demodulators, filters,
channels, RF components and PLLs make it easy to build, maintain and
modify even the most complex communication system models.
The
VisSim/C-Code™ product option is available for VisSim,
VisSim/Comm. VisSim/C-Code automatically generates ANSI C code for
the model/controller/algorithm. The C code can be compiled and run on
any platform that supports an ANSI C compiler.
Finally, integrated
VisSim/DSP solutions
enable users to model and simulate their control/communication/signal
processing system, automatically convert their algorithm to ANSI C code
and compile-link-download to an embedded system.
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