Is there any deployment for Presence Detection localization mode that is not recommended?

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  • Is there any deployment for Presence Detection localization mode that is not recommended?

At first sight, it may seem advantageous to use the Presence Detection mode to identify the presence of the Tag in the room. But placing single Anchor per room may not provide a reliable results.

This is due to the fact that the UWB signal can pass through the wall. The signal penetration through the wall could cause wrong position reporting under certain circumstances. Another factor that needs to be considered is that the possibility of UWB signal penetration through the wall may not be constant and may vary over time.

If possible, consider implementation using True Location (for example in the hallway area) in combination with an approach based on detecting the presence of Tag in the zone which is defined as the close area of the door.

Please read the Presence Detection Application Note carefully prior to using the Presence Detection localization mode in your projects.