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Raveon Technologies Corp.
8.2.
Position Transmission
When the M6G transmits its position, it also reports other status information such
as voltage, input bits, temperature, velocity, and heading. All of these
parameters are compressed into a short data packet, and sent over the air in the
proper TDMA time slot. Each
M6G
is assigned a time slot, based upon its ID. ID
1 is slot 1, ID 2 is slot 2…
Position/status reporting happens in one of 2 different intervals.
A)
At the
TXRATE
setting. This is the transmit frequency interval setting. The
user configures
TXRATE
to be shortest acceptable interval between reports.
The factory default is 10 seconds.
B)
At the
IDLERATE
setting. This is the idle reporting interval, usually the
longest acceptable time between position reports.
IDLERATE
is used as a slow-reporting rate for parked vehicles, vehicles that
have no active trigger inputs, no proximity alerts, and that the user has
programmed them to require a minimum movement distance before they will
report.
8.3.
Set the Transmission Report rate
Using the
TXRATE xx
command to set the report rate, in seconds, for the
M6G
transponder. For example, if you wish the M6G to report every 5 minutes, set
the report rate to 300 seconds (
TXRATE 300
).
Important!:
Set the minimum distance the unit must move before a transmission
occurs with the
TRIGDX xx
command. If TRIGDX is set to zero, then the unit
will always report at the interval set with the
TXRATE xx
command.
For example, to transmit every 2 minutes when idle, and every 10 seconds when
moving more than 500 meters, use these commands:
IDLERATE 120
(
to set the idle moving update interval to 2 minutes.)
TRIGDX 500
(tells it to report at the IDLERATE if it does not move this far)
TXRATE 10
(
configures it to report every 10 seconds whenever it is moves more than TRIGDX
meters)
The following diagram illustrates the logic behind the various programmable
parameters that can be used to configure the
M6G
to trigger position
transmission. The logic inside of the
M6G
shown is tested at a user-
programmable rate, called the
TXRATE
. The
TXRATE
is the time interval
between
M6G
position/status radio transmissions.
Set to
TXRATE
and
IDLERATE
both to 0 to totally disable position reporting.
