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
triggerto"co_movement". - Set
co_movement_metersto the distance they must travel together.
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 |
See the rule types reference for the full parameter specification.
Related pages
- Asset associations
- Trip matching: for recording shared journeys rather than creating live associations
- Rule types reference