Tag-based detection is the use of compatible radio devices carried by people or attached to equipment to identify presence, proximity, or location. In forklift safety applications, wearable tags can make pedestrians detectable by equipped vehicles. Coverage depends on compatible devices being present and functioning. Tag-based detection does not automatically identify people who are not carrying a supported tag.
The tag acts as a detectable representative of the person or object associated with it. Depending on the system, radio measurements may establish presence, estimate separation, or contribute to a calculated position.
These functions are not interchangeable. A proximity measurement between two devices does not automatically provide a facility-map location, and a location record does not necessarily trigger a local warning.
Deployment planning needs to consider which people and equipment carry compatible devices and how device readiness is maintained. Visitors or untagged personnel require consideration through other controls or complementary detection approaches.