Getting ahead in the world of RFID: the new UHF RFID read/write head from Turck

RFID-based applications used in materials handling and in goods logistics are many and various. Until now, it was a case of using the right reader for the right application, in order to avoid errors. Turck is now pleased to be able to launch an innovative read/write head that offers flexibility and can be adapted for use with specific applications.

Radio-Frequency Identification (RFID) is used in a broad spectrum of applications. RFID makes it possible to keep track of material flows at all times, optimizes goods inward and goods outward and is ideally suited for the monitoring of packaged goods as an alternative to data capture by barcode. RFID is also the ideal solution for the complete management of multi-use containers across their entire life-cycle. Until now, different applications required readers designed for the specific application involved. For example, an inbound/outbound solution in a distribution centre has different requirements in terms of reading technology than the handling of small items. Turck, which is a leading supplier of automation solutions, identified this problem and is now in a position to present its new UHF RFID read/write head, which can be equipped with a variety of passive antennas.

A single device that supports a variety of applications

Turck is launching its new product with four optional passive antennas that are suitable for gate applications or for the precise localization of components, for example. This means that the most diverse applications from all areas of industry and logistics can now be supported using a single basic device. For example, the device can be fitted with UHF RFID near-field antennas with a detection range of just a few centimetres. In a manner similar to HF technology, these antennas support specific read ranges. This means that application problems, such as overreach and cross-reads typically associated with UHF, are now a thing of the past. If suitable antennas are used, the same device can also be used to identify vehicles or multi-use containers.

Switching polarization for complete capture

An additional, innovative feature of the internal antenna of the new UHF RFID read/write Head is the ability to switch polarization. This is an advantage that comes into its own in the metallic environments encountered in the industrial sector. Switching the polarization – for example from clockwise circular to anti-clockwise circular – alters the physical nature of the detection field. The effect of this is that data storage media previously located in gaps in the detection field are now also supplied with power and can be read. This increases the certainty of data capture, improving the detection and capture rate.

Power over ethernet

The readers receive their power supply via the ethernet cable. Known as “power over ethernet” (PoE), this technology reduces the amount of wiring work required to a minimum. Even external I/Os can be supplied via PoE, to a certain extent. Only actuators known to require high power need to be connected to an additional external supply. This functionality can be achieved using standardized switches that are commercially available.

Even in the RFID technology domain, Bachofen sets up the antennas so that they are ready to use in line with your requirements as a system operator. We take the time to gain a detailed knowledge of your application’s specific requirements, before supplying you with heads and carefully evaluated automation components to develop the optimum solution.

Do you have any questions?

Roland Fuchs

Product manager

+41 44 944 14 35
roland.fuchs@bachofen.ch

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