Radio frequency identification technology uses radio waves to automatically determine identity. For example, an RFID chip can associate a particular serial number with a particular person or object. Then, it transmits information about the motion of the person or object to which it is attached by electromagnetic waves. RFID was first used in the 1970s, and RFID has become more common as production costs have fallen.
At present, at least one clothing company is using RFID technology, some add RFID tags on clothing, track the number of times consumers try on a certain clothing in the mall, and obtain consumption data; some add an RFID tag to the socks, Tracking to their exact location, whether the other sock is hidden in the dresser drawer or under the bed, even if the two socks are mismatched, they can be found.
Socks with RFID chips have a radio-emitting tag that sends the signal via Bluetooth to the app on the smartphone. Users can find the exact location of the socks by using this app. The app also lets them know the key information, such as whether the socks have been washed and washed.
Two schools in San Antonio, Texas, used a similar technology to use RFID technology to track student actions on campus, ensuring accurate numbers to protect students' safety while also letting the school know when students are Escape the class.
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