Falsifying-preventing electronic strip seal

Abstract

The invention discloses a falsifying-preventing electronic strip seal. The falsifying-preventing electronic strip seal is composed of an insertion bolt and a bolt base. A bolt body of the insertion bolt comprises a rod body, a cap head extending outwards from the top end of the rod body, a vertically-through containing hole and a first clamping structure located at the bottom edge of the rod body. A counterbore with the inner diameter larger than or equal to a bolt hole is formed in the top edge of the containing hole in an outward-extending mode. A circuit board is installed in the containing hole and comprises a circuit wire, a lower contact, an upper contact and an RFID chip, wherein the lower contact and the upper contact are connected with the circuit wire, and the RFID chip is installed on the circuit wire. A third buckling part larger than the containing hole is installed below the containing hole, an upper elastic sheet abutting against the bottom end of the counterbore and an upper elastic sheet abutting against the bottom face of an upper cover are installed at the top end of the containing hole and used for elastically suspending the circuit board in the containing hole, and the upper contact is controlled to be incapable of being electrically connected with the upper cover; however, when the first clamping structure is inserted into the bolt base and can not be separated, the RFID chip can be electrically connected with an antenna inside the bolt base through the lower contact, and the upper contact can be electrically connected with the upper cover to enable the bolt body to form an external antenna of the RFID chip.

Description

technical field [0001] The present invention provides a tamper-proof electronic seal, more specifically, especially a special technology that thieves can cut off the internal circuit when grinding the diameter of the cap head of the plug. Background technique [0002] figure 1 Disclosed is a traditional electronic seal 90 composed of a plug 91 and a plug seat 92. The plug 91 is provided with an RFID chip, and the plug seat 92 is provided with an internal antenna. The door bolt 93 can lock the container door 94, and the RFID chip is electrically connected to the internal antenna of the bolt seat 92, and the plug 91 forms an external antenna. At this time, the customs only needs to use an identification host to emit an electromagnetic wave for the external antenna to receive, and the RFID chip can convert the energy provided by the electromagnetic wave into a voltage, and use the voltage to modulate the identifier stored in the RFID chip into an electromagnetic wave. Then it...

AI Technical Summary

Problems solved by technology

[0003] However, some thieves found that as long as figure 2 As shown, use a grinder 95 to grind the cap head 911 of the plug 91 to a diameter smaller than the bolt hole 931 of the door bolt 93, so as not to damage the internal circuit operation of the electronic seal 90, and then pull the plug 91 out of the bolt hole 931 , and then, t...

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