These
latest revisions offer support for the new DataMessage (DM)
type. The Data Message enables CompassCom Software customers
to support a whole class of current and future telemetry
products. Real world cases include the telemetry from Digital
Spreader Controllers found in modern Snow Plows or OBDII
engine diagnostic information.
Standard GPS data includes information about the position
of the mobile asset (i.e. latitude, longitude, speed, and
heading). This information is generally encoded in a message,
sent over the air, written to a relational database and
served to client applications in real time. The new DM type
can include any number of “sensor” fields in
addition to the GPS information. Because of the flexible
message formatting and database schemas of CompassLDE, our
customers have the ability to monitor the complete “state”
of a mobile asset in real time and via historic reports
and play back. The addition or subtraction of information
from the data flow is handled with ease via simple configuration
of the CompassLDE components.
Key advantages of this enhancement include:
· Better ‘future proofing’ – it
is common in the real world, for data values and data protocols
to change. This is often due to manufacture updating device
drivers, different vehicles having different makes/models
of telemetry equipment, and packets being transformed by
middleware. Because the handling of sensor data is configurable
on the backend, as these things change, custom development
effort is not required.
· Multiple telemetry messages from the same vehicle
– a scenario can occur where a snow plow, for example,
will have a digital spreader controller outputting data
relevant to the spread of salt and sand on the road. This
same truck may have a different subsystem for the application
of anti-ice liquid. This represents two completely different
types of telemetry messages. In the past, customers had
to have special one-time knock off software developed to
handle this on the backend. V4.7 enables customers to simply
define two message types via configuration – no ‘hard
coding’ required.
· Faster replay and report generation – the
addition of the DM tables in the CompassLDE database represents
a streamlined schema that is easy on the eyes of administrators
and easy on the CPU when querying information.
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