Axis DV426 Instruction Manual page 41

①Acce.: to monitor rapid acceleration. The value will always be positive.
②Dece.: to monitor rapid deceleration.The value will always be positive.
③Turn_Acce: the acceleration of sharp turn. The value will be positive when turning
left, and negative when turning right.
④Turn_Gyr: the angular velocity of sharp turn. The value will be positive when
turning left, and negative when turning right.
⑤Impact: the acceleration of impact event. The value will always be positive.
Filter: Acceleration sensor coefficient on the Z-axis.
The value of Impact is calculated as below:
＋ ＋
abs(X) abs(Y) abs(Z)*Fliter
(abs(X), abs(Y) and abs(Z) are the datas of the acceleration sensor on X-axis, Y-axis and Z-axis)
After the setting of threshold and duration is finished, the installation settings and the
correction of the sensor will be needed. By default,
* If the vehicle accelerates continuously to the +X-axis while driving, and the value of
Acce exceeds the threshold for 100ms, the Acceleration Alarm will be triggered.
* If the vehicle decelerates continuously to the +X-axis (or brakes) while driving, and
the value of Dece exceeds threshold for 100ms, the Deceleration Alarm will be
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