Tag Archives: RFID

What Is RFID?


RFID or Radio Frequency Identification is the wireless use of magnetic fields to transfer data, as it automatically identifies tracking tags that have been placed on or in objects. What is a tracking tag you may ask? Well, a tag is a small device that can be placed on things so that they can be followed through production–as in the auto industry for example, or on items that are ready to be shipped or moved–as in a clothing store for instance. They can also be used in livestock, pets and yes, even people, although tracking people has its own set of consequences and problems associated with it.

Micro chipping your new puppy is the perfect example of how RFID works. Your pet receives a tiny (about the size of a grain of rice) tag that is delivered via an injection and sits right under their skin. If they are ever lost, RFID technology can get them back to their rightful owner simply by reading the tag and garnering the required information that is stored in it.

To be read, a tag must contain information and you must use a reader to get that information. Some tags are read only which means they contain information as simple as just a factory assigned serial number or information that is more complex, such as stock numbers, batch numbers, production date or any number of other things that will be used to keep track of the items they are affixed to. Tags that are read/write allows the user to use specific data specially designed for their needs depending on their business protocols.

A RFID reader then sends an encoded radio signal to interact with a tag, the tag gets the message and responds with its identification. Readers can read hundreds of tags at the same time which allows warehouses and huge automobile plants to run that much more smoothly, with the people always knowing where certain parts are at any time of the day or night.

RFID readers and tags can be used in virtually any environment and in any temperature range so they are useful in a wide variety of applications. Anything from automated paying for parking or for using pay as you go on toll roads and bridges can be controlled through radio frequency identification, allowing the user ease of access, convenience and efficiency as they go about their daily lives.

GAO RFID offers one of the world’s largest selections of RFID devices, software and solutions and has over 20 years experience delivering these products to customers worldwide. Please feel free to visit http://www.gaorfid.com to find out more.

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