User's Manual

User Guide

WherePort III User Guide D948 Rev B

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Figure 25 Multi-Floor Schematic

Shows a floor configuration so that the WherePort field extends

into the second floor.

4.4 Multi-Floor Installations

When activities are tracked on several floors, the vertical position of the WherePort and

the extent of its field must be carefully considered. If the field extends into the floor

above, a tag moving on the upper floor may be activated by the WherePort on the lower

floor. This will produce an incorrect location for the tag.

The height of the floor together with the utility space between floors must be

considered so that the WherePort is mounted at a height that prevents tags on the floor

above from being activated (Figure 25).

The WherePort power setting can be set so that the range is reduced. The tags

may also be mounted lower on the asset to permit lower placement of the WherePort.

4.5 Locked WherePorts

There may be areas on a site where once a tagged asset has entered it should not be

located using RTLS. Movement along an assembly line may be more accurately tracked

using only the WherePort signals. Where room coverage is needed the RTLS algorithm

could indicate that a tag is outside a room when it is not.

Floor 1

Drop Ceiling

Floor 2

Drop Ceiling

Utility Space