User's Manual

Versus Technology, Inc.
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2. System Description
The VIS is a reliable, flexible platform for locating people and equipment indoors. The system
badges, worn by people or attached to assets, emit infrared (IR) or a combination of infrared and
radio frequency (RF) signals that contain information about the badge. The information is sent
through the sensory network to a host computer that retrieves the information and translates the
data into names of rooms, people, and equipment. Workstations on a LAN throughout the facility
can access the location data with various client software programs, which display the current
locations of people and equipment. In addition, the system can display alarms on the monitor, send
pager messages, and store data for later use in reports.
System Structure
2.1 Infrared (IR) Tracking
The use of infrared (IR) signals for tracking has distinct advantages, since it allows accurate
locating via signals that will not penetrate walls or floors. A system of strategically placed IR
Sensors receives IR signals as badges move between rooms or areas of a building.
2.2 Radio Frequency (RF) Signals
In addition to the IR signal, a low-power radio frequency (RF) signal is incorporated into some
badges. RF signals penetrate walls and ceilings, allowing the RF signal to act as a backup if the IR
signal is blocked. If the IR signal is blocked and an RF Sensor receives the RF signal, the last
known IR location of the badge is shown. In addition, the RF signal can be used in a supervisory
capacity to indicate a low-battery status or button press information, and can trigger the VIS to
activate a pre-programmed response. RF badges and Sensors can also be used for security
purposes at locations where tracking assets is important.
Dedicated VIS Server installed with the
Badge Server, Data Server,
Configuration Utilities, and optional
software such as the Event Monitor