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。

youdao

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。

youdao

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。

youdao

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.

BBC: In brief: Ash cloud threatens UK flights

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.

BBC: Activision's Call of Duty series targets Gamescom

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

BBC: London buses to offer NFC contactless card payments