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    香港凡度有限公司
    Hong Kong Vando Co., Ltd.  ( Shenzhen, China)
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    Tel: +86 139 1676 4221

    Add:      Minzhi Street, Longhua Town, Bao'an District, Shenzhen

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    Mr. Jingli Mao
    Mobile: +86 189 1972 8099
    E-Mail: sales@vando-tech.com

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    History of RFID Technology

    Author:admin   Posted :2018-7-15  Read:1211

    RFID is not a "new" technology. It is fundamentally based on the study of electromagnetic waves and radio, which was rooted in the 19th century work of Michael Faraday, Guglielmo Marconi and James Clerk Maxwell.

    The concept of using radio frequencies to reflect waves from objects dates back as far as 1886 to experiments conducted by Frederick Hertz. Radar as we know it was invented in 1922, and its practical applications date back to World War II, when the British used the IFF (Identify Friend or Foe) system to distinguish friendly aircraft returning from missions on mainland Europe from unfriendly aircraft entering British skies.

    In 1948, Harry Stockman published a paper titled “Communication by Means of Reflected Power,” in which he outlined basic concepts for what would eventually become RFID.  In the paper, Stockman suggested that “considerable research and development work has to be done before the remaining basic problems in reflected-power communication are solved, and before the field of useful applications is explored”

    There was some activity in the 1960's and 1970's in the application of RFID technology, with a fundamental patent filed in 1973 by Charles Walton, a former IBM researcher who left IBM to form his own company, Proximity Devices, in Sunnyvale, California. Walton’s patent was for a radio operated door lock, where a "dormant tag" was sent a small electrical current by a radio transceiver to recognize the key it was attached to. His idea was bought by the lock-making firm Schlage to make electronic locks that could be opened by a user waving a keycard in front of a reader—the fundamental idea behind the access cards used today.

    Technology advances in a variety of different fields—computers, radio, radar, supply chain management, transportation, quality management, and engineering— have made RFID technology more useful with applications in asset management, payments, ticketing, livestock tracking and transportation. The US government helped advance the RFID technology during this time, as the Los Alamos National Laboratory in New Mexico performed research and development in radio frequency technology with research in livestock tracking applications, railroad applications and toll road applications.

    Exxon/Mobil introduced the Speedpass transponder device in 1997 to allow drivers to make credit gasoline purchases by waving a key fob with a tiny transponder in front of the gas pump.  The program has an estimated 7 million subscribers.

    Futher development in the RFID area can be traced to the work of Dr. Sanjay Sarma in the mid-1990s.  Sarma, then an engineering professor at the Massachusetts Institute of Technology (MIT), along with a colleague, David Brock, were working on a robotics problem - how to have a machine recognize and respond to items in its environment. Sarma and Brock asked a “what if” question: What if, instead of having a robot attempt to “recognize” objects optically, what if objects, with the use of an electronic marker, could identify themselves to a robot? Using a simplified marker, or tag, a robot could be informed of the presence of an item and then use its identifier to access a database to obtain specific information on the item for refererence.  In 1999, Sarma, Brock, and Kevin Ashton co-founded the Auto-ID Center at MIT, to explore methods by which RFID technology could be used in commercial applications.  The Auto-ID Center helped to develop the concept of using RFID as a networked technology during the time when many saw the power of using the internet as a foundation for applications.

    Research at the Auto-ID Center created a "new" interest in RFID with considerable resources made by industry to capitalize on Stockman’s and Sarma’s ideas.

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