WhereTag III

The WhereTag III is a key component of the WhereNet Real Time Locating System (RTLS).    It is a small device that can be attached to assets of many kinds, such as forklifts, containers, ULDs, hospital and test equipment as well as trailers and container chassis's. It is used to manage those assets by allowing them to be identified and located by the system.

The WhereTag III "blinks" an RF transmission at pre-programmed rates ranging from 5 seconds to one hour between blinks. The WhereNet RTLS infrastructure receives these blinks and use sophisticated Differential Time Of Arrival, (DTOA), algorithms to determine the location of the tag. Accuracy of this determined location can be as low as 2 meters and is nominally within 3 meters in most installations.

The WhereTag III complies with the ANSI 371.1 RTLS standard. It operates in the globally accepted 2.4GHz frequency band and transmits spread spectrum signals in accordance with the standard. The use of spread spectrum technology provides extremely long range; in excess of 1,000 meter read range, and 300 meter locate range outdoors. This is accomplished at a miniscule power output of less than 2 mW.

The combination of low power output and cutting edge battery technology allow the WhereTag III to operate for long periods of time without any maintenance. Battery life can be a long as 7 years depending upon blink rate.

A receiver is also built into the WhereTag III. The tag can receive low frequency magnetic signals from an exciter called a WherePort. The WherePort transmissions can be read at distances ranging from 1 to 6 meters. The WherePort can modify the pre-programmed blink rate of a WhereTag III and also identity a particular location "zone".

Designed to operate in a wide range of applications, the WhereTag III is fully sealed and will function in both indoor and outdoor environments. The tag's case is also resistant to oils, solvents and hydraulic fluids.

Model TFF-1011