User's Guide

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Introduction to the RIFD System
The following settings are possible in any combination:
● antenna beam initial position (radiation 90°of the antenna)
● antenna beam switched 35° to the left
● antenna beam switched 35° to the right
The orientation of switching is in the longitudinal direction of the ARU8500.
Right-side beamLeft-side beam
Fig. 5: Circular switch-beam allocation
The ARU8500 reader is used to detect the movement of the transponder. This information will be added to the general
information about the transponder. With 50 antenna sweeps per second, the reader is fast enough to capture even the
objects moving at a speed of ≤ 10 km/h. At least two reads are necessary to determine the direction of movement.
8.2.3 ©KRAI SMSH (Smart Shelf) Antenna
Fig. 6: ©KRAI smart shelf antennas connected to the reader (cascaded)
Up to 8 ©KRAI smart shelf (SMSH) antennas can be cascaded per reader port; 8 antennas x 4 ports = 32 SMSH
antennas in total.
The SMSH @KRAI antenna was developed for applications in the eld of point of sale, smart shelf applications and
Kanban solutions. The antenna is characterised by an extremely homogeneous read zone, which is emitted by the
high front-to-back ratio. Therefore, it is suitable for static detection of multiple transponders. Due to the extremely thin
design, the antenna module can be integrated into dierent applications.
The antenna is equipped with an intelligent bypass circuit that allows for cascading up to 8 SMSH antennas per
reader port. The control is done by a RRU4xxx Kathrein RFID reader. The ©KRAI control signals are transmitted via the
standard antenna cable.
Left-side beam Right-side beam