What is an RFID Reader?
An RFID reader is a piece of equipment that uses radio waves to identify tagged objects. An RFID tag has an antenna that sends a signal to the RFID reader, which then receives the information. The reader processes the information and stores it in a database. Passive readers receive signals only from active tags, while passive ones receive power from the tags. Both types of RFID readers are useful. The first type of reader is called a reader-assisted device.
A passive RFID reader needs a power source to send and receive codes. An active RFID system can be much larger than a passive one and can be used in more remote locations. The operating frequency of active RFID systems is 915 MHz. There are two types of active readers: beacons and transponders. Beacons send signals without a reader being activated. Beacons tend to have a shorter battery life and may be less versatile.
A fixed RFID reader is usually fixed to a location. This type has a fixed antenna and is generally used for indoor applications. A mobile RFID reader, on the other hand, can move and is connected to a computer system. The main advantage of this type of reader is its portability. It is easy to transport, has a small antenna, and is very inexpensive. And while a mobile RFID unit is flexible, it has a limited range of operation.