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Method for anti-transfer of rfid chip, anti-transfer rfid chip and circuit

An anti-transfer and chip technology, which is applied in the field of RFID technology, can solve the problems of incomplete anti-transfer, inability to work, damage and anti-transfer, etc., achieve good anti-counterfeiting effect, low cost, and increase the difficulty of counterfeiting

Active Publication Date: 2020-12-08
四川凯路威科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A common method is to use the destruction of the RFID tag antenna to achieve anti-transfer, that is, to use technologies such as anti-tampering and fragility to destroy the RFID tag antenna when it is detached from the attachment, so that the tag cannot work
However, in the above method, the RFID chip is still intact and may be removed and repackaged for use, so the anti-transfer is not complete

Method used

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  • Method for anti-transfer of rfid chip, anti-transfer rfid chip and circuit
  • Method for anti-transfer of rfid chip, anti-transfer rfid chip and circuit

Examples

Experimental program
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Effect test

Embodiment 1

[0042] see figure 1 .

[0043] The RFID chip of the present invention increases two pins except antenna pin, is used for connecting an external device (typically is resistance, also can be capacitance or inductance, for the sake of convenience, the following description and illustration take resistance as an example). There is a special circuit inside the RFID chip to measure the resistance. A special area is also opened up in the memory of the RFID chip for storing the measured resistance value. In addition, the RFID chip also has a comparison circuit (completed by the processing module), which can automatically compare the resistance value stored in the memory with the current measured resistance value.

[0044] The resistance is attached to the RFID tag antenna by printing or other means, and its resistance value is non-specific, that is to say, the resistance value on each tag is different. The resistor is made of materials that are less affected by temperature and humi...

Embodiment 2

[0049] Considering that there is a condition in Example 1 that "the resistor is made of materials that are less affected by temperature and humidity, so as to ensure that its resistance value is relatively stable", there is a certain degree of difficulty in engineering. To solve this problem, the measurement of the absolute value of the resistance can be improved to the measurement of the ratio of the resistance, so that the following scheme can be formed after improvement.

[0050] Such as figure 2 , The RFID chip adds three pins in addition to the antenna pins, which are used to connect two external devices (typically resistors, but also capacitors or inductors, for convenience, the following descriptions and illustrations use resistors as an example). There is a special circuit inside the RFID chip to measure the ratio of the resistance. A special area is also set up in the memory of the RFID chip for storing the measured resistance ratio. In addition, the RFID chip also...

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Abstract

An RFID chip transfer preventing method, an anti-transfer RFID chip and an anti-transfer RFID chip circuit are disclosed and relate to RFID technologies. The method disclosed in the invention comprises the following steps: 1) a first storage device and a comparison device are arranged in an RFID chip; 2) an external characteristic device is arranged outside the RFID chip, and the external characteristic device and the RFID chip form circuit connection; 3) during initialization processes, the RFID chip measures characteristic parameters of the external device and the characteristic parameters are stored in the first storage device; 4) after the initialization processes, the RFID chip detects the characteristic parameters of the external device connected with the same in a working state, the characteristic parameters are compared with the stored characteristic parameters, and the RFID chip is set in an abnormal state if consistency determination conditions are not met. The beneficial effects of the RFID chip transfer preventing method, the anti-transfer RFID chip and the anti-transfer RFID chip circuit are that resue of the RFID chip can be detected, difficulty of counterfeit manufacture is greatly increased, and good anti-counterfeiting effects are exerted. The RFID chip transfer preventing method, the anti-transfer RFID chip and the anti-transfer RFID chip circuit are can be implemented in a simple and easy manner and are low in cost.

Description

technical field [0001] The present invention relates to RFID technology. Background technique [0002] RFID technology, that is, radio frequency identification technology, is a non-contact automatic identification technology. Its basic principle is to use the transmission characteristics of radio frequency signals and space coupling (inductive or electromagnetic coupling) or radar reflection to realize automatic identification of identified objects. At present, RFID has begun to be used for anti-counterfeiting of items, such as anti-counterfeiting of high-end liquor. In the field of RFID anti-counterfeiting, one of the main issues is how to prevent transfer, that is, to prevent the real label from being stripped from the genuine product and then attached to the counterfeit product. A common method is to use the destruction of the RFID tag antenna to achieve anti-transfer, that is, to use technologies such as anti-tampering and fragility to destroy the RFID tag antenna when ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/073
CPCG06K19/07345
Inventor 邸鹏毛军华华福春邱林江
Owner 四川凯路威科技有限公司