Imass Mobile Data Communications Gateway (MDCG)
The MDCG
is an integrating business system which can facilitate and
manage bi-directional data communications with mobile
resources via a range of Mobile Data Communications
Bearers, including:
The
MDCG was specifically conceived as a mechanism for
routing messages between a Command and Control system
and mobile resources (eg. fire appliances).
It is intended to be an ‘intelligent
gateway’, i.e. it maintains its own data set and is
capable of acting upon the content of messages, rather
than simply acting as a basic routing mechanism.
The
scope of the MDCG is bounded by information flows
between:
-
The
C&C system and the MDCG;
-
The
MDCG and the Mobile Data Communications system;
-
The
MDCG and an optional visual real time GIS facility
(this is provided primarily by Imass for Brigades
who do not have a GIS integrated with the C&C or
to provide additional GIS facilities in other parts
of the Brigade - not shown in this case); and
-
The
MDCG User Interface and the User (for system
administrative use).
Communication
between the C&C system and the MDCG is by means
of the GD92 protocol, a standard communications protocol
used by Fire and Rescue Services.
GD92
supports a wide range of messages, of which only a
sub-set are required by the MDCG (many GD92 messages
are simply not applicable to the environment).
The
GD92 based MDCG enables efficient bi-directional mobile
data communications (including mobilising messages,
status/location updates, text messages and
acknowledgements) between the C&C and software
applications on the MDTs via the radio network.
Whilst
the MDCG may be capable of, and may have a role in,
controlling the rate of location updates from mobile
resources in
response to status updates or network conditions, where
the mobile resource is not equipped with an MDT an
intelligent GPS unit will be required capable of being
instructed over air, by the MDCG, to change the
subscribed network polling rate of the radio.
For
more information, please contact either Andy
Kerr or Paul
Warner on 0191 213 5555.
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