GuidePort: System Manual
27. November 2000
Seite 2
1
GuidePort Wireless Audio Transmission
GuidePort is a local area broadcast system for use in museums, visitor centers and at
exhibitions. GuidePort features a characteristic cell structure, the so-called cells being
defined areas of information and entertainment. These areas are supplied by
Cell
Transmitters
which send digitally coded information via an
Active Antenna Unit
to
portable
Receivers
. The transmitted data can be any audio information, for example
comments or music. The audio signals are picked up by bodypack receivers which play
the audio program directly via headphones. The various audio programs (events) can
be triggered automatically by
magnetic field identifiers
.
The diagram on the next page shows GuidePort’s system hierarchy. At the top level are
the GuidePort installations. Each installation carries a specific code transmitted via RF.
Whenever a GuidePort receiver recognizes a new installation code, it will automatically
collect the installation-specific control data. This data is mainly the so-called Event
Assign Table which defines the receiver’s “reactions” to the 255 possible event
numbers available in each installation, making the receiver compatible with other
separate, independent GuidePort installations.
An installation can be seen as a macro cell. Each installation can be organized in up to
255 cells and contains up to 255 real-time audio events.
