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Proximity association

Proximity association monitors when two tag types come near each other or move apart, and can automatically create or remove asset associations based on physical proximity.

How it works

You define a parent tag type and a child tag type along with a proximity radius. When a child tag enters the radius of a parent tag, the system can trigger an association, for example, linking a sensor tag on a pallet to the truck it's loaded onto.

Co-movement trigger

The association triggers when the two tags move together over a specified distance. This confirms they're physically travelling as one unit rather than just happening to be nearby.

  • Set trigger to "co_movement".
  • Set co_movement_meters to the distance they must travel together.

Alert on auto-disassociation

Enable Alert on auto-disassociation to receive an alert whenever this rule removes an auto-association because the child moved out of range. This only applies to associations created by this rule.

To monitor all associations (manual or auto) for separation, use a separation rule instead.

Parameters

Parameter Description
child_device_type Tag type of the child asset
parent_device_type Tag type of the parent asset (must differ from child)
radius_meters Proximity radius (0–10,000 m)
trigger "dwell" or "co_movement"
dwell_seconds Time in proximity before triggering (when using dwell)
co_movement_meters Distance threshold for co-movement detection
alert_on_separation Alert when an auto-association is removed (default: off)

See the rule types reference for the full parameter specification.

Questions? Contact Blecon support — we're happy to help.