GNSS Data processing

GNSS Signal Loss

GNSS signals can be disrupted by obstacles like trees, buildings, or walls, and are unreliable indoors or underground. When the signal quality drops too low, no data is sent to the API.

If no data is received for an extended period, the device may be either off (e.g., due to low battery) or in an area without GNSS signal (e.g., locker rooms).

Standstill Detection and Filtering

GNSS data includes some noise, even when the device is stationary (e.g., left on a table). While our trackers have a built-in standstill detection algorithm, the data sent to the API is raw and unfiltered.

For accurate results, especially for computations based on speed or distance, it's crucial to handle the standstill flag correctly. Be aware that spikes in speed when leaving standstill mode can affect metrics, such as acceleration, for the remainder of the session.