RFID (Radio Frequency IDentification) tag chip circuit capable of avoiding reuse after being torn

Abstract

The invention discloses an RFID (Radio Frequency IDentification) tag chip circuit capable of avoiding reuse after being torn. The circuit comprises a tag chip and an antenna, wherein the tag chip comprises a tag protocol processing circuit and a tearing detection circuit; the tag protocol processing circuit is used for finishing voltage-multiplying rectification, protocol control and information access, and realizing tag tearing detection according to the detection result of the tearing detection circuit; the tearing detection circuit is used for outputting the detection result to the tag protocol processing circuit according to direct current voltage output by the rectification circuit of the simulation circuit of the tag chip; and the antennal is connected with the tearing detection circuit and the tag protocol processing circuit and is used for receiving and transmitting the radio frequency signal and providing tearing trigger signal. Through the circuit, the problem that the RFID electronic tag does not have uniqueness since the RFID electronic tag still can be reused after being torn can be avoided.

Description

technical field [0001] The invention relates to the technical field of radio frequency identification, in particular to an RFID tag chip circuit that prevents reuse after being torn. Background technique [0002] With the rapid development of the Internet of Things technology, RFID (Radio Frequency Identification, radio frequency identification) electronic tags with functions such as identification, item tracking, and information collection have been widely used in many fields such as industrial automation and commercial automation. RFID electronic tag is a non-contact automatic identification technology. It uses radio frequency signals to identify target objects and obtain relevant data. The identification work does not require manual intervention. As a wireless version of barcodes, RFID technology has waterproof, Antimagnetic, high temperature resistance, long service life, large reading distance, data on the label can be encrypted, storage data capacity is larger, storage...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the above-mentioned prior art, the object of the present invention is to provide an RFID tag chip circuit that prevents reuse after being torn, so as to prevent the RFID electronic tag from being reusable after being torn and causing the RFID electronic tag to be non-unique.

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