Wireless tracking technology RFID

RFID stands for radio frequency identification. It is used to generate a wireless communication of living or non living things with the controller device. RFID kit is like a controlling system and RFID tags are the source to generate communication between the object (to which RFID tag is attached) and the RFID controller kit. 

RFID is similar to bar code system but bar code system works on optical signal and RFID works on RF signal. RFID tags stores the data of the object and transmits it with the RF signal to the controller system according to the logic developed by the user. It is very useful in telecommunication field where the work is based on wireless sources.Many college/university projects have been made by using RFID kits such as door security system, avoid library books from stolen, attendance of teachers or students in class,patient management system, RFID based parking system etc
For any RFID system:
1. We need to have a transceiver to generate RF signal
2. An antenna is required to transfer that RF signal between transmitter and controller.
3. Transmitter is usually the RFID tag and controller is the RFID kit (microprocessor can also be attached to it).
An interesting thing about RFID in the field of medicines is that Kodak has filed this patient application for RFID tagged capsules that could be swallowed to track activity in a patient’s digestive system. The capsules would contain a tiny tracking chip which could be used to monitor a patient’s medication history, or to transmit other medical information to a nearby RF data collector. The pills would be designed to break down over time without harming the recipient.
Now the the information inside the human body can also be collected and worked out.