isolation-d.blogspot.com[material handling equipment]
Sunday 7 January 2007


Radio Frequency Identification (RFID) Tag

A RFID tag
  • consists of an antenna, capacitors, and have a small-integrated silicon chip
  • uses radio waves to automatically track information for individual targets
  • used to store information about the tagged item on an Integrated Circuit (IC) that is attached to an antenna, giving the IC the means to transmit the identification information to a reader. The reader then converts the waves returned from the radio frequency identification tag into a form containing data that can be passed to, and processed by, a computer.

There are several types of RFID tags (Active, Passive, Semi-active), as well as several methods for using them.

Benefits of RFID Tag


1. Replacement of conventional bar code used for product identification.
  • RFID uses electromagnetic capture to send messages between the tiny tag and the reader. RFID does not require Line-Of-Sight (LOS) to operate for communications between tagged objects and a reader. Hence, LOS will be the unique differentiator that will ultimately make RFID more advantageous and popular in comparison with Bar Code.

2. Allows optimum inventory management while ensuring fastest delivery of the items from the warehouse to the customer location- in a safe and secure way.

  • Tampering of goods, contamination due to temperature extremes, damage of fragile goods during transportation are some serious issues. Therefore, the RFID tag is one of the solutions for the problems. RFID is gaining tremendous ground in monitoring physical parameters like temperature, humidity etc.

RFID Applications

Place a tiny RFID tag inside the packets of the frozen food and monitor with RFID readers located at different strategic positions like racks and shelves in the warehouse. The RFID readers are connected to a computer system, which collects the information from the RFID readers and generates reports and alerts before the starting value of the allowable temperature that a product can endure, is crossed. The whole process is automatic and a large number of packets can be monitored and analysed before any contamination or damage can take place.

RFID can also be used to sense if the door of a truck is broken or has been tampered with. It immediately sends information to the driver’s pager to raise an alarm. Often Global Positioning Systems (GPS) are used in conjunction with the RFID system to track and monitor the entire process of transportation of goods from a main location. Even while loading the goods in the truck, RFID can prove useful. Conveyer systems are equipped with readers and associated computers. The tagged items are automatically routed to the proper exit gate and loaded into the truck without any human interaction. The same principle may be used in an airport during luggage transfer.

Material Handling Equipment
Radio Frequency Identification (RFID) Tag
Take a Break: RFID Nightmare!



lom200704 shared at 22:15