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Passive NFC anti-counterfeiting chip for realizing tamper-proof detection by detecting on-off of pin

A technology for detecting pins and tampering detection, which is applied to record carriers used in machines, data processing applications, instruments, etc., can solve problems such as the inability to improve the anti-counterfeiting function of commodities, and achieve the purpose of preventing transfer and reuse, solving commodity anti-counterfeiting and low cost. Effect

Pending Publication Date: 2019-10-22
云南纳光科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a passive NFC anti-counterfeiting chip that realizes anti-tampering detection by detecting the on-off of pins, which can solve the defect that the existing technology cannot perfectly solve the anti-counterfeiting function of commodities

Method used

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  • Passive NFC anti-counterfeiting chip for realizing tamper-proof detection by detecting on-off of pin
  • Passive NFC anti-counterfeiting chip for realizing tamper-proof detection by detecting on-off of pin

Examples

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Embodiment

[0016] Example: see figure 1 , A pair of anti-tamper detection pins are added on the basis of the standard NFC tag chip. The anti-tamper detection pins are internally connected to the internal anti-tamper control circuit of the chip, and externally connected to a normally closed tamper detection sensor. When the chip detects that the circuit of the anti-tampering detection pin is disconnected, it immediately activates the internal anti-tampering control circuit of the chip, and sets the corresponding flag bit. Through internal logic control, this flag bit cannot be changed once it is set;

[0017] After the NFC tag triggers the tamper detection protection mechanism, the information can still be read normally, but the tamper-proof security flag in the tag has been set, and the relevant information can be confirmed through the reader, and the flag cannot be modified after it is set.

[0018] The anti-tampering control unit is usually in a dormant state, and only when the NFC rea...

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Abstract

The invention provides a passive NFC anti-counterfeiting chip for realizing tamper-proof detection by detecting on-off of a pin. The chip comprises an NFC signal processing unit and two external pinsconnected to the NFC signal processing unit. The two external pins are connected with the input end and the output end of an antenna respectively. The NFC signal processing unit, namely an NFC tag chip, comprises a CPU and an NFC baseband, a memory and a power module which are connected with the CPU. The anti-counterfeiting chip further comprises a tamper-proof control unit. The tamper-proof control unit comprises a tamper-proof control circuit and two tamper-proof detection pins connected with the tamper-proof control circuit. Tamper-proof detection sensors are connected to the exteriors of the two tamper-proof detection pins. Commodity authenticity can be verified and commodity traceability work can be performed through commodity related information stored in the NFC chip. The chip can be effectively prevented from being transferred and reused through a tamper-proof security mechanism of the chip. The method adopted by the invention is low in cost, and can effectively meet the requirements of commodity anti-counterfeiting and tracing.

Description

technical field [0001] The invention relates to the field of commodity anti-counterfeiting and traceability, in particular to an NFC anti-counterfeiting chip that realizes the anti-tampering detection function through an activatable power source, which can be used for commodity anti-counterfeiting and traceability. Background technique [0002] Near field communication, NFC (Near Field Communication) technology, evolved from the integration of non-contact radio frequency identification (RFID) and interconnection technology. By integrating the functions of inductive card reader, inductive card and point-to-point communication on a single chip, mobile terminals are used to realize applications such as mobile payment, electronic ticketing, access control, mobile identification, and anti-counterfeiting. [0003] In recent years, NFC chips have been widely used in packaging box technology. The addition of NFC makes the packaging box more user-friendly, makes human-computer intera...

Claims

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Application Information

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IPC IPC(8): G06K19/077G06Q30/00
CPCG06K19/07749G06Q30/018
Inventor 曹雪林张家聪江崭王毓金熊振卿
Owner 云南纳光科技有限公司
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