11
2.7.10 Sudden Deceleration (Harsh Braking)
Rapid deceleration events can be triggered when one of three available deceleration thresholds are
exceeded as determined by the accelerometer in milli-Gs (e.g., 1.0) for a defined period of time in seconds
(30 seconds).
The following AT Command example sets the rapid deceleration threshold #1 to .5Gs. If this threshold is
exceeded for 1 second, then an input event is triggered. Keeping the deceleration below this threshold for
30 seconds will clear this event.
AT$OBDDCL=1,500,1,3
2.7.11 Motion Detection
Motion alerts for vehicles can be configured to communicate that a vehicle is being towed. Motion
detection based on measuring movement via the accelerometer occurs when the vehicle ignition is off,
and the vehicle is stationary.
A motion alert is triggered when motion defined in milli-Gs is detected for a defined period of time.
2.7.12 OBDII Basic Event Data
Five additional data items can be included with event messages:
l
VIN
l
Firmware version ($PKG)
l
OBD Protocol (i.e., J1850 PWM)
l
Cellular signal strength (RSSI)
l
OBD speed
2.7.13 Right Turn
Harsh turn events can be triggered when one of two available thresholds are exceeded as determined by
the accelerometer in milli-Gs (e.g., 0.75) for a defined period of time in seconds (e.g. 30 seconds).
The following AT command example sets the Right Turn accelerometer threshold 1 to .25 Gs. If this
threshold is exceeded for 2 seconds, trigger the input event. This event will clear in 15 seconds when the
acceleration is below this threshold.
AT$OBDART=1,250,2,15
