How powerful is RFID?
RFID technology is not new, it is basically very simple. The question is, how powerful is RFID technology and where can it all be applied?
Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID tag consists of a tiny radio transponder; a radio receiver and a transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits digital data, usually an identifying inventory number, back to the reader. This number can be used to inventory goods. There are two types. Passive tags are powered by energy from the RFID reader’s interrogating radio waves. Active tags are powered by a battery and thus can be read at a greater range from the RFID reader; up to hundreds of meters. Unlike a barcode, the tag doesn’t need to be within the line of sight of the reader, so it may be embedded in the tracked object. RFID is one method of automatic identification and data capture (AIDC).
Basically, we use RFID to uniquely identify a particular entity in time and space. How do we achieve this? RFID itself carries a unique identifier that allows us to identify entities. We know the location of the scanner and we know the exact time when the scan happened. We do not always need all three values, but there is a possibility for them to be recorded.
As described, RFID is not complicated technology. However, he has great power. The power is in the data it can generate. Based on unique identification, location and time, it is possible to design excellent systems for different domains of economy and life.
It is possible to create real-time inventory management systems, various security systems or process applications.
Our company is developing one such application and we will write more about it soon.