User Manual

32 System Installation PLUS System Manual
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Figure 2-24: Group Tracking Cell with Boundary Margin
With some Reader geometries (such as Readers in a line), when the Location Engine attempts to
calculate a Tag position, it produces two results. Only one result represents the actual position. The
other result is a mirror-image, or ambiguous solution. By defining a tracking cell in these cases, the
Location Engine can filter the false solution.
R e a d e r 1 R e a d e r 2 R e a d e r 3
A c tu a l
T a g
P o s itio n
F a ls e ( M ir r o r
Im a g e ) T a g
P o s itio n
T ra c k in g C e ll
Figure 2-25: Tracking Cell Used to Filter Ambiguous Solutions