User Manual

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WhereLAN III User’s Guide
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User’s Guide, WhereLAN III draft D1675 rev F
© Copyright Zebra Technologies, 2012
Zebra Confidential
1 DOCUMENT OVERVIEW
This document describes the basic configuration and recommendations on
physical installation of the WhereLAN III product, which is part of the
Location Sensor product line. The site design and placement is detailed in the
Location Sensor Placement Guide D0406 and WhereLAN III Instruction
Sheet (26913), provide with each unit.
2 PRODUCT DESCRIPTION AND FEATURES
The WhereLAN III is the next generation of WhereLAN product that receives
the signals transmitted by WhereTags (ISO 24730-2), and provides data to the
Location Algorithm processor. The received tag blinks are decoded, time
stamped, and routed to a Windows Server or ZLA (Zebra Location Appliance)
for additional processing. The locate algorithm running on the Windows
Server or ZLA calculates the tag position based on the time stamps of multiple
Location Sensors, and reports that position to the database where it is
displayed by Resource Manager.
The WhereLAN III Location Sensor supports the same Real Time Locating
System (RTLS) functions as the previous sensor, known as the WhereLAN
Location Sensor (LOS). WhereLAN III is fully backwards compatible and
may be used, as outlined herein, as a drop-in replacement for any existing
LOS. However, the WhereLAN III incorporates modern and patent-pending
techniques that result in superior accuracy performance over the current LOS
product. In addition, WhereLAN III supports a number of other value-added
features, as follows:
Time Synchronization: Like the LOS, WhereLAN III supports wireless and
wired time synchronization. However, the product can operate in two distinct
time synchronization modes, known as “Legacy” and “Time Synch II” As
shipped, the product defaults to Legacy time synchronization. In Legacy
mode, WhereLAN III is drop-in compatible with LOS and is backwards
compatible with VSS release 3.8. The Legacy Time service relies on various
user-defined entities, such as Line-of-Sight lists and Timing Islands. Time
Synch II no longer exposes these entities to the end user. A site must run
either the Legacy Time service or the Time Synch II service, but not both. In
Time Synch II mode, WhereLAN III furnishes additional data required by a
new Time Synchronization Process, scheduled for release in Q4 2012, which
runs on the Windows Server or ZLA. The Time Synch II service reduces site
design complexity and post-install support. It accomplishes this by being
“self-configuring” and “self-adjusting”; it hides its configuration details from