| 摘要 |
An electric seal includes an antenna device engaged in a lock member and having a contact located in the lock member, a lock shaft engageable into the lock member and having a circuit board engaged in the bore of the lock shaft and having an RFID chip coupled to an electric circuit, the electric circuit includes a contact for electrically engaging with the contact of the antenna member when the lock shaft is engaged into the compartment of the lock member for identifying the RFID-based electric seal, the RFID chip do not generate and emit the signal to identify the electric seal when the lock shaft is disengaged from the lock member or when the circuit board is disengaged from the antenna member. |
