First released in version: 3.7 SP1

Multi-tag

Tracking and location with multiple tags per object

Summary

The Multi-tag feature supports the tracking of objects to which two or more tags have been attached using pre-defined motion models in SmartSpace or DIMENSION4 installations. The measurement source can be either the position measurements of individual tags, or in DIMENSION4 systems, the raw sensor events can be used. Where available, measurement sources can be combined, with some tags using raw events and some using positions.

Benefits

Multi-tag tracking can be useful in a number of situations:

  • Forklift tracking. The tracking environment for forklifts may be a canyon-like warehouse. Orientation, and possibly height, is used to record the location of products. Multiple tags can be attached to a forklift, even to the forks, to accurately track location and alignment. Additionally, multi-tag tracking on forklifts can aid in safety and the avoidance of collisions, for example by providing forklift locations to other vehicles.

  • Object tracking where orientation is not always constrained by location, and the application requires correct orientation tracking in this unconstrained case.

  • AGV (autonomous guided vehicle) tracking, where the tracked object may be able to rotate freely, or may have a single steering axis like a car or forklift.

  • Robust tracking through diversity of tag mounting points, especially in an environment where there may be obstruction of tags in some positions and orientations.