Patent ID: 8508371
Filing Date: 2013-08-13
Classification: H01Q,Y10T

Abstract:
1. A multi-secured RFID electronic seal comprising: a bolt with a male bolt portion, the male bolt portion having at least one electrical connecting point; a bolt pedestal with a female pedestal portion, correspondingly receiving the male bolt portion of the bolt to securely lock with each other, the female pedestal portion having a plurality of nodes therein to electrically connect with the electrical connecting point of the male bolt portion; a RFID system, comprising: a RFID chip embedded inside the bolt; a transmission conductor, electrically connecting with the RFID chip and the electrical connecting point of the male bolt portion; and an antenna installed on the bolt pedestal, electrically connecting with at least one of the nodes; a protection circuit, electrically connecting with the RFID chip and the antenna after the bolt and the bolt pedestal being securely fastened; wherein when the bolt and the bolt pedestal is separated after being securely fastened, the protection circuit become disconnected so that the RFID chip fails to electrically connect with the antenna; wherein after the bolt and the bolt pedestal is securely fastened, the RFID chip selectively and electrically connects with at least one of the nodes through the transmission conductor, the electrical connecting point of the male bolt portion and the protection circuit, so that the RFID chip transmits a RFID signal through a corresponding one of the signal transmission path and then the antenna.