Nortel 2340, Руководство по настройке

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18 Deployment metrics for different tracking types
NN47250-504 (324122-A Version 01.01)
Locales
At the maximum, create one Locale for each RF Fingerprint. A good rule is to create one Locale for each department
inside the building, and then create one Locale for each compass direction outside the building (example:
Outside-northwest).
Location AP Placement/Density
The general guideline for asset tracking is one Location AP for every 4,000 to 5,000 square feet of space. In addition, for
each building, make sure that there are two Location APs within 50 feet of the building entrance or exit.
The Location AP placement restrictions are:
• Use a minimum of four Location APs to ensure accurate tracking.
• Do not install a Location AP within 10 feet of an outside wall.
• Do not install Location APs near windows or other expanses of glass that border the outside.
When using this density of Location APs in a deployment, typical precision and latency numbers can be expected in the
range of 5 meters within 3 minutes.
RF Fingerprints
The minimum number of RF Fingerprints required are:
• One RF Fingerprint for every 3,000 square feet.
• Two additional RF Fingerprints per entrance, one inside and one outside.
• Four additional RF Fingerprints outside the building, one at each compass point
For example, a 21,000 square foot first floor of an office building with two entrances would require 15 RF
Fingerprints, this includes:
• Seven RF Fingerprints of 3,000 square feet each
• Four RF Fingerprints for the two entrances
• Four outside at the compass points
This coverage ensures the Nortel WLE2340 can tell when a device moves across the physical perimeter boundary. If the
RF Fingerprints are large, the location reported is fairly coarse.
Note.
Evaluate each public and semi-public space, such as lobbies and loading docks.
Determine whether they can be considered as inside or outside Locales.