N. V. Nederlandsche Apparatenfabriek NEDAP ADRRF Manual Do Utilizador

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Manual iSense Lumen series

RFID installation requirements

When RFID technology is used, there are different installation requirements to consider than with RF

technology. Since the RFID field is much less strict defined than with RF technology, there is a larger area

where tags could be detected. In contrary to RF, RFID is much less sensitive to coupling or interference issues.

Automatic tag muting

The RFID reader has a maximum read throughput of around 200 tag reads per second. This throughput is used

to monitor the status of the tags continuously. When many tags are placed close to or in the label-free zone, it

might be that the reader is 'too busy' with those tags, compared to other tags. This will impact the system

performance. If this happens, the reader will mute some tags, to have time remaining for other tags. This

feature is called 

. It might therefore be that some tags in the neighborhood of the system

are muted, and will not cause an alarm when moved through the gates.

Metallic surfaces

As the RFID field is reflected by metallic surfaces, this might confuse the Dynamic Beam Steering algorithms

and influence (change or enlarge) the detection field. That is why it is advised to avoid metallic surfaces in the

neighborhood of RFID-enabled gates.