Overview of AIT Technologies 53
to the existing network trafc because the tag communicates only about 60 bytes of data per loca-
tion update. The tags are active and require a 4–6 V power source. The tags have built-in acceler-
ometers and can be congured to report the location any time it is moved (Ekahau rtls, 2007). Many
other companies have previously employed versions of a WiFi RTLS system in operations, which
has created a great amount of interest due to the fact that these location systems can be incorporated
into existing networks.
Active RFID RTLS: RF Code has combined active RFID and infrared in an RTLS implementation.
The system has a read range of up to 10 m (Rf code, 2007).
Ultra-wide band: Multispectral Solutions, Inc. incorpor ...