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Technical
This section touches on some of the
technical aspects underlying the eMIS DEDICATEDengines internet based
enterprise Management Information System open platform.
Traditional
Telemetry
Telemetry is 'measurement from a distance' and the generic
term for automatic equipment that retrieves and stores data from remote
locations. A computer periodically "polls" (ie. connects via radio or phone) to
an "outstation" connected to the measuring sensors on the remote
site.
These are also called "dial up" systems, because the data storage
computer is not permanently connected to the 'outstation'. As they 'dial-up' on
a periodic basis the data in these systems is only as up to date as the last
phone call.
'Live' information without permanent Internet
connection
Using a DEDICATEDengines (patent applied for) technique,
'live' information can be represented on the web-site without a permanent
Internet connection to the remote site. This allows permanent monitoring of
virtually all types of plant and equipment.
This is data 'push' -
sending information, by exception, only when it is significant - not routine
'dial up' - no call centres with inherent delays.
The result; an
automatic system, immediate up to date information and user configurable (via a
web page).
The system - data engine to server
The
DEDICATEDengines system comprises:-
- The remote DEDICATED DATA (collection) engines on the
plant.
- A DEDICATED communication path, eg. phone line to the
nearest Internet service provision point (ISP).
- A DEDICATED centralised database and Internet server,
to provide information through secure web pages, needing only a standard web
browser, eg. PC, PDA or WAP.
To achieve the live information, the remote DATAengine
has built-in intelligence - capable of being configured remotely. It can be set
up with rules, which determine what constitutes important significant data, and
can monitor for alarm events or other specific activities.
In this way
the "data push" to the server is controlled, to provide a live representation
of the plant, without unnecessary permanent connection, with minimal
transmission times. |
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