What is RFID?
Radio frequency identification, or RFID, is a general term for technology that uses radio waves to automatically identify people or objects. There are several methods of identification, but the most common is to store the serial number that identifies the person or thing, and possibly other information, on a microchip mounted on the antenna (antenna and chip together called RFID transponder or RFID tags). The antenna allows the chip to transmit information identification for the reader. Readers turn radio waves reflected back from RFID tags into digital information that can then be passed on to a computer that can exploit it.
What is RFID better than using bar code (BARCODE)?
RFID is not always "better" from the bar code. Two different technologies and have different applications, which sometimes overlap. The big difference between the two is bar code is
line-of-sight technology. That is, the scanner must "see" the bar code to read it, which means that people usually have to steer the barcode scanner to read the code. Radio frequency identification (RFID), in contrast, does not require a line of sight to be able to read tags. RFID tags can be read as long as they are within the reach of the reader. The bar code has other drawbacks as well. If the label is torn or dirty or have a disability, there is no way to scan items, and a standard bar code identifying the manufacturer and products only, not a unique item. The bar code on a carton of milk is equal to each other, making it impossible to identify which ones are probably past the expiration date.
What is the purpose of RFID?
RFID enables the data to be submitted by products containing RFID microchip tags, which are read by RFID readers. The delivered Data can provide information about the location or identification of the product, or specify information such as the date of purchase or the price.
What are the benefits of using RFID technology?
There are no contacts or even line-of-sight is required to read the data from a product containing RFID tags. This means no more checkout scanners at the grocery store, there's prying more shipping box, and the key is not getting more out of your pocket to start your car. RFID technology can also work in the rain, snow and other environments where bar code or optical scanning technology would be useless.
What are the types of RFID Standards?
- ISO 15693-Smart Labels
- ISO 14443 Contactless-payment
- ISO 11784-Livestock
- EPC-Retail
- ISO 18000-Range frequencies, various applications
What type of RFID applications?
- Tracking for Livestock
- Automotive immobilizer
- Contactless payments
- Anti-theft
- Application Library
- Quick reply Toll Tickets
- Access Control
- Production/Inventory Tracking
- Retail
- Asset Management
