Browse Prior Art Database

System Visualization Tool

IP.com Disclosure Number: IPCOM000109402D
Original Publication Date: 1992-Aug-01
Included in the Prior Art Database: 2005-Mar-24
Document File: 2 page(s) / 86K

Publishing Venue

IBM

Related People

McAllister, RW: AUTHOR [+2]

Abstract

The System Visualization Tool (SVT) is a software tool that facilitates the modeling and display of many type of distribution systems that require monitoring and control. The SVT main menu provides "pull-down" selection for the System, Read, Write, Clear, and Mode options of the tool. The major features of the SVT are invoked via the Mode option which provides Draw, Map Measurement/Stimulus Identification (MSID), Control Law, Map Control, and Event-screen selection.

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System Visualization Tool

       The System Visualization Tool (SVT) is a software tool
that facilitates the modeling and display of many type of
distribution systems that require monitoring and control.  The SVT
main menu provides "pull-down" selection for the System, Read, Write,
Clear, and Mode options of the tool.  The major features of the SVT
are invoked via the Mode option which provides Draw, Map
Measurement/Stimulus Identification (MSID), Control Law, Map Control,
and Event-screen selection.

      In Draw mode, the user is presented with a menu bar from which
model elements are selected and a grid upon which the elements are
placed.  A user may select from tanks, valves, lines, or joints to
implement a visual model of the distribution system he or she intends
to represent.  In the case of propellant lines, rubber-banding is
provided to aid in placing the end points.  A text field may be
associated with each model element, allowing the user to tag
descriptions of the network to the displayed model.  Block moves,
copies, and deletions are also allowed.

      The Map MSID mode allows a user to classify and assign, or map,
command and status signals read from predefined text files to the
appropriate valves in the model.  For each valve, the user may assign
as many as twelve MSIDs, or independent variables, to affect the
element's behavior in the Event mode.

      The Control Law and Map Control modes enable users to set the
manner in which valves respond to the changing state of MSIDs in an
event list.  The user may choose up to four MSID types as the
independent variables controlling of a valve.  As these selections
are made, a truth table is updated to include the selected control
variables.  Then, for each combination of variable states, open,
closed, or unknown, the user specifies the resulting valve position
as open, closed, previous or undefined.  A user-supplied name allows
each control law to be...