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The diagram
above shows the basis concept of the Tolltex Message Analyzer. On most
toll systems, lane messages arrive at the plaza computer from the equipment
in real time. They are then displayed on the plaza monitor. On some existing
systems, these messages scroll off the screen and are lost. The Tolltex
software is designed to be an add-on application that functions outside
of the plaza system. The Tolltex software is shown above as the box on
the right side of the illustration.
Obtaining the
messages can be from a sequential log file or a via a communication link.
Messages are first loaded into the Tolltex Message Analyzer from a sequential
log file. From there, data can be reviewed by using a variety of "filters"
that allow specific messages to be displayed. For example, lane events
(open/close), errors, or data transactions. These filters operate by lane,
collector, date, or time. It's also possible to select (or ignore) messages
that contain specific words.
After reviewing
the messages from the sequential log, the user has the option of loading
the messages into an Oracle Relational database. This feature allows for
archiving messages and for combining many individual sequential logs into
a full-function database. Once in the database, the same "filters"
can be applied to analyze the entire set of archived messages.
Additional
information and sample screens that describe Loading Message Files, Filtering
Messages by date/time/lane, Filtering Messages by Transactions, and Filtering
Messages by Lane Events is available by clicking on the links below.
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