Underlying the Internet of Things are technologies such as RFID (radio frequency identification), sensors, and smartphones.

物联网背后的技术包括RFID（无线射频识别），传感器和智能手机。

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The project involves using RFID (radio frequency identification) technology to track and trace poultry and meat products "from the farm, through the supply chain, to supermarket shelves."

该项目包括使用射频识别技术，“从农场开始，贯穿供应链，直到超市货架”，跟踪家禽和肉类产品。

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RFID (Radio Frequency identification) is one of the identification technologies which can realize intercommunication by using wireless channel.

射频识别技术是利用无线信道实现双向通信的一种识别技术。

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TfL also operates the Oyster smartcard scheme which uses an earlier RFID (radio-frequency identification) technology.

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The most interesting experiment is being done by Qantas at Sydney and Perth airports with high-tech frequent-flier cards that are embedded with an RFID (radio-frequency identification) chip.

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The firm has sold tens of millions of add-on toys which offer new content when they are placed into a RFID (radio-frequency identification) reader attached to a console.

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