| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic seal including an RFID chip and an antenna device, which can detect whether a door is opened or not by providing a radio recognition function by the RFID chip and the antenna device of the electronic seal in case that the door is sealed by the electronic seal, and stopping the radio recognition function in case that the electronic seal is broken or cut. <P>SOLUTION: The electronic seal includes an insertion bolt and a main body. The main body includes a seat body for inserting the insertion bolt, a locking part set within the seat body, the antenna device set on the seat body, and the RFID device set within the seat body. When the insertion bolt is fixed by the locking part, the RFID device is electrically connected to the antenna device to receive host electromagnetic wave from an identification host and transmit identification electromagnetic wave having an identification code to the identification host. If the insertion bolt is cut, the connection with the antenna device is released to stop the transmission of the identification magnetic wave and identification code to the identification host. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
