Accident, Rollover, Tip, Rotation Counting and Tilt

Accelerometer Event Detection

Most of our GPS tracking devices are fitted with a 3-Axis Accelerometer, enabling several key tracking features as seen below:

Device Accident and Rollover Detection + Harsh Events High-G Event Detection Tip Detection and Rotation Counting Tilt Detection
Yabby Edge    



Accident and Rollover Detection, Harsh Events

These features are available on our hardwired cellular device range. In order to detect harsh acceleration, braking, and cornering events, the accelerometer must run continuously so that it can auto-orientate (figure out what way is down – as gravity impacts the forces seen) itself and additionally self-calibrate.

Given the power draw of the accelerometer, this is impractical to implement on a battery-powered device – so it is limited to the hardwired device range. These devices can be configured to send alerts when harsh events, accidents, or vehicle rollovers are detected. If vehicle rollover alerts are required, a powered device should be selected for the application.

Use Cases:


High-G Event Detection

This feature is designed around detecting where and when an impact has occurred to a device in transit. This will help in determining where damage may have been sustained. When enabled, this feature draws slightly more battery than if disabled. It will simply log a record (and upload if configured) any events that exceed a set force threshold. The minimum threshold is 1.5G and the maximum is 6G (along any axis).

Use cases:

  • Asset abuse or misuse monitoring


Tip Detection

The Tip Detection feature allows you to define a range of angles that constitute a ‘tipped’ state. Every time the device enters this range, it will set a digital input, and increment an analog counter. It can also optionally log a record, perform a GPS fix, upload data, or scan for Bluetooth tags.

Use cases:

This feature is not suitable for detecting a vehicle rollover, for a few reasons:

  • It has no auto-orientation function, so must be installed in the correct orientation to function.
  • It only supports a single roll axis – so rollover can easily be missed.
  • Enabling this feature uses extra power while the device is on the move, for the duration of movement, which will result in potentially unsatisfactory battery life on a constantly moving vehicle.


Rotation Counting

This feature keeps a count of the number of rotations of the device about the Z-axis.

Use case:

  • Detecting the uncoiling of cable drums


Tilt Detection

This feature is available on the Guppy LoRaWAN® – and will trigger an uplink once a pre-defined threshold.

Use cases:

  • Detecting when signs, fence posts, etc have fallen over.

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