Manual

RULE SETS
A brief examination of rule sets is suggested before the installation overview is
begun. While the technician who carries out the site survey will define the loca-
tion rule set for the site, an understanding of what rule sets are is very impor-
tant.
Rule Sets define how the software side of the 3D-iD system interprets TAD data.
An end-user has very little use for TAD data in and of itself. For example, know-
ing how far a wheelchair is from a particular antenna is of little practical use to a
nurse sitting at a desk. Far more useful would be some sort of data indicated
which room a wheelchair is in - or perhaps simply an alert if a wheelchair goes
someplace it is not supposed to. Rule Sets, which are lookup tables of a sort,
were created to convert TAD data to more useful formats.
As previously mentioned, alert sets are used to convert TAD data into two other
forms of data.
The first of these is Location (or LOC) data. Location data is data that
indicates the Location (which are derived from logical statements involv-
ing TAD variables) that a tag is in. A Location can be a room, a wing or
even an entire floor, depending on the configuration of the system.
The second kind of data is Alert (or ALR) data. Alert data is generated
from Location data. Alert data is data that is generated based on certain
trigger events for single tags or pairs of tags. There are two basic
groups of alert conditions. The first group, alerts associated with a single
tag, can be set when a tag enters or exits an area or when a tag remains
within a certain location for a set period of time. The second group,
alerts associated with a pair of tags, can be triggered when one tag
enters an area without the other, when the two tags are near one another
or when the two tags are far from one another.
L
OCATION DATA