Many of you probably wondered what RFID stands for and when the acronym is preceded by HF or UHF, things got even blurrier. In order to shed some light on this subject and explain once and for all, in plain-English terms, what these technologies refer to we decided to put together this article. RFID, pronounced as a sequence of separate letters, is the acronym for Radio Frequency Identification, an important technological advancement which, in theory, should be similar to bar code identification in use and functionality. This particular type of identification has become an important technology nowadays, due to several reasons and the fact that it can be used basically anywhere with great ease and enhanced technical features. The UHF RFID devices are short for the ultra-high frequency identification systems, whereas the HF one represents the high frequency devices. As for the composition of the system, this is made up of a small electronic component that contains an antenna and a small chip, which is generally fit to carry around 2000 bytes of data. |
Whether you are using a HF RFID device or the UHF one, the purpose remains the same as a magnetic strip or a bar code label: to provide a unique and proper identification for a particular object. Similar to the bar codes at a supermarket or the magnetic strips located on the back of a credit or ATM card, these radio frequency signals must also be scanned in order to get the product information and retrieve the identification details. In the case of the RFID devices, the electrostatic or electromagnetic coupling in the radio frequency portion of the spectrum is being used in order to transmit the precious signals. What this means, basically, is that the entire system is made up of a transceiver and an antenna, joined together in order to read the frequency and forward the info to a processing system, like a computer. Another important element of the device is the transponder, often called tag, which represents an integrated circuit that contains the radio frequency circuitry and product details to be forwarded.
RFID systems are easy to use almost anywhere and with any purpose when an identification is needed. From clothing and accessory tags to pet or animal tags, from missiles and artillery to everyday food at the grocery store, the device proves extremely useful anywhere a unique and specific identification system is needed. The embedded tag can carry a load of simple details or basic information, such as a simple pet owner’s name and address or even the cleaning instructions for a pair of jeans, but it is also able to transmit more complex instructions, like how to assemble a car, for example. It is a common known fact that auto manufacturers are using RFID systems to transfer cars throughout their assembly lines. With each stage of production, the embedded tags tell the company’s computer which is the following step in the automated assembly procedure. All in all, it is clear that the applications for this type of radio frequency technology are simply immense and the way it works is neither really complicated to understands, nor extremely hard to use. This being said, it only seems fair to state that there is a bright future for both the producers and manufacturers of HF and UHF RFID devices, as well as for the professional websites that market them.
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