At$Odocfg Thresholds For Odometer/Speed Filtering - Novatel MT 3050 At Command Reference

AT$ODOCFG Thresholds For Odometer/Speed
Filtering
AT$ODOCFG
Command Function
Syntax Query
Syntax
Write Syntax
Write Response
Read Syntax
Read Response
Execute Syntax
Execute Response
Unsolicited Response
Parameter Values
<speed_threshold>
<count_threshold>
Notes
Example
Thresholds for Odometer/Speed Filtering
This command allows the user to set/query the thresholds used to filter
odometer drift and false speed event reports.
In the current GPS implementation, the velocity for a stationary device is often
reported as a non-zero value for brief periods. To prevent unwanted odometer
updates and spurious speed-related events firing, the speed is filtered following
every GPS report where the speed drops to 0.0. Before distance calculations or
non-zero speeds will be considered valid, the thresholds of this command must
be met. Once met, subsequent speeds are not subject to these thresholds until
the speed drops to 0.0 again.
AT$ODOCFG=?
$ODOCFG:(20-255,0-255)
OK
AT$ODOCFG=<speed_threshold>,<count_threshold>
OK
AT$ODOCFG?
$ODOCFG: <speed_threshold>,<count_threshold>
N/A
N/A
Speed (in tenths of knots) required to consider device is actually moving (default
of 80 = 8.0 knots) when device is considered in a stopped state
Number of consecutive speed threshold crossings required to assume device is
actually moving (count is incremented or cleared on each report of a GPS NMEA
sentence group). Default is 3.
N/A
N/A
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