Vectronic Aerospace VERTEX Lite Collar, User Manual, Page: 12 / 87

The Vertex Lite collar system 12
© 2017 VECTRONIC Aerospace GmbH
User Configuration
3.4 Mortality Sensor
The mortality sensor measures the activity of the animal. If no movement (activity) is
detected for a user-defined period (e.g. 24 hours), a mortality event is triggered. The
mortality period is user-definable and can be set up to 140 hours. When a mortality
event is detected, the collar:
-
Switches the VHF Beacon pattern to the Mortality Mode
- Sends out a mortality event message via Globalstar / Iridium / GSM
communication
-
Conducts unscheduled GPS fixes each 30 minutes for six hours before it returns
to the programmed schedule
-
Sends messages according to set communication patterns
The collar will end the mortality mode if the sensor registers repetitive activity for roughly
20 minutes.
NOTE: The mortality period should be adapted to the behavior of the collared animal so
you get no false events (e.g. lions with a very long passive phase should get a longer
mortality period as for example roe deer with a distinct but short activity pattern). The
default setting is 24h which has been used successfully in a variety of studies.
3.5 Activity Sensor (Acceleration)
The VERTEX Lite Collar is equipped with a Basic Activity sensor. The data are stored
in the on board flash memory. The sensor records average data every 300 seconds.
You can analyze relative activity based on right-left, up-down and forward- backward
movement.