| 摘要 |
A locking system includes a radio frequency identification (RFID) tag encoded with a first code, an antenna, an RFID reader, a storage unit storing a second code, and a microprocessor. The RFID reader receives a radio-frequency signal emitted from the RFID tag via the antenna. The radio-frequency signal includes identification of the first code. The microprocessor compares the first code and the second code, and locks an electronic device when the first code does not match the second code.
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