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RFID Readers
An RFID reader is the CPU of the RFID system and is necessary for the RFID tracking system to function. RFID readers transmit and receive radio waves to communicate with RFID tags. RFID reader types can be broadly classified into Fixed RFID readers and Mobile RFID readers.
Fixed readers are affixed in a location and are typically mounted on walls, ceilings, into portals and other `choke points`, such that RFID tagged assets can be monitored as they go by.
Fixed RFID readers can further be classified into Distributed readers and Integrated readers.
Distributed fixed readers comprises of 3 important components:
- RFID Readers
- RFID Antennas
- RFID Antenna Cables
Distributed fixed RFID readers contain external antenna ports that can connect anywhere from one additional antenna to four different antennas. By using an antenna hub/multiplexer, readers can connect to up to 32 RFID antennas. The number of antennas connected to one RFID reader depends on the use case requirement. In the cases of AssetGather Check-in / Check-out solution, the requirement is a small area of coverage, so one antenna will suffice. On the other hand, if it is required to track a manufacturing production line, more than 20 antennas would be required to provide asset tracking granularity at the work bench/shelf level.
An Integrated fixed RFID reader is a reader that has built-in antenna and therefore RFID antenna cables are not required.
Integrated readers are easier to deploy and are usually aesthetically pleasing since the number of hardware components required is very minimal. They can be used for applications where assets move in a predefined, consistent manner.
Mobile RFID readers also called as handheld RFID readers are handheld devices that are used for scanning/reading RFID tags and they communicate with an onboard computer or smart device.
Two primary categories of handheld RFID readers are:
- Mobile Computing Devices or Integrated Handheld Reader.
- Sled Readers
RFID readers are classified based on:
- Operating frequency
- Connectivity
- Processing capabilities
- Power options
- Number of antenna ports