Well, there’s one common misconception that is associated with active RFID readers. It is believed that higher read range is much better in active RFID readers. To make it more clear, there’s nothing as such.
Higher Read range is not good for many applications. E.g. if you want
active RFID for Gate/Door Entry/Exit applications and read range is
10-20 meters, then even someone passing by or standing in the lobby
may be read by the Reader and gate/door lock will open without the
knowledge of the person.
The aim of RFID is to read the people nearby and not read the people
away from the reader. Some active RFID technologies that offer higher
range cannot assure a fixed read range, The reader offering 10meters
may also in certain conditions like Open hall, can give up to 20
meters range.
In Active RFID tracking systems, The location of the reader is
considered as the location of the Tag. So if a Reader installed in
Room1 also reads tags in Room2 , then you cannot say if the person is
actually in Room1 or Room2. Hence you should have 2 different readers
in Room1 & Room2 each with read range limited to area of the Room.
Filed under: Uncategorized Tagged: | active rfid readers, active rfid tags, rfid appliacation, rfid device, rfid technologies, rfid tracking system, RFID-Readers
