Gateway
The gateway is the field-data bridge. It belongs at strategic communication and collection points, especially where personnel movement, vehicle movement, or sensor data needs to reach the central platform.
Beacon
Beacon or iBeacon nodes help define positioning context in indoor or underground layouts. They are most useful when planned around gallery transitions, intersections, and active work zones.
Tracker or tag
Tracker and tag devices identify personnel or assets and can support movement records or emergency workflows, depending on the hardware configuration selected for the project.