RFID i.e. “Radio frequency identification” is a new technology which is used to track items by using a small electric device. This device is comprised of an antenna and a chip and it is used for the same purpose for which magnetic strip on a credit card is used. RFID solutions mainly help in businesses to track vehicles and inventory, execute access control and check-in truckloads of cargo.
This technology works by integrating tiny Rfid chips into various devices such as tags, labels, and cards. To recover the identifying information from these chips the device is scanned by an appropriate reader. A basic RFID system has three main components an antenna, a transreceiver, and a transponder. An antenna use to transmit radio signals to stimulate the information tag and easily relocate the needed data and a transreceiver receives the radio waves in different ranges and it is also responsible for decoding the received data. A transponder has a portable device and this device plays an important role in sending and receiving messages.
These RFID chips can be integrated in badges or tags. RFID tags can be installed in vehicles such as trucks, cars, and trains. A car installed with an RFID tag will trigger the gate arm when vehicle comes near the area which results in opening of the gate arm so that vehicle can enter the gate. RFID tag system can also be used to control and maintain the inventory of a business. These tags are basically smart bar codes, which disseminate the data via radio frequency to the systems receiver. The software then enumerates the data and performs important actions such as giving the order for raw materials. These tags not only transmit numerical data but it can also be programmed to convey any data such as condition, price, purchase date etc and along with this it can also relate that data to any of the variables. Nowadays, many pharmaceutical companies are also using this technology to identify and track the history of pharmaceutical drugs. RFID in healthcare technologies offer a more secure picture in making delivery of pharmaceutical goods more efficient.
To recover the data stored in these tags one need a reader. A typical RFID reader is a device which has one or more than one antennas. These antennas transmit radio waves and receives signal back from the tag. After receiving the signal back it passes the collected information to a computer system in a digital form. These readers are classified on the basis of their range like high frequency and ultra high frequency which are 2.45 GHz and 13.56 MHz and their prices also depend on their ranges. Hence, the ultra high frequency readers are costly in comparison to high frequency readers.
Today, many businesses have adopted RFID technology, therefore these are known companies are known as RFID companies. This RFID technology is getting popular day by day because it is less expensive and more effective. It provides solutions for many applications to solve many business problems. The upcoming and inventive RFID’S Xtenna based devices can track the BSE landmark for incoming/outgoing vehicles. Usage of this device makes it easy to identify the unique identities of vehicles.