CN110263898A - The passive NFC anti-counterfeiting chip of anti-tamper detection is realized by detecting network resistor - Google Patents
The passive NFC anti-counterfeiting chip of anti-tamper detection is realized by detecting network resistor Download PDFInfo
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- CN110263898A CN110263898A CN201910656720.6A CN201910656720A CN110263898A CN 110263898 A CN110263898 A CN 110263898A CN 201910656720 A CN201910656720 A CN 201910656720A CN 110263898 A CN110263898 A CN 110263898A
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- 238000001514 detection method Methods 0.000 title claims abstract description 66
- 238000004806 packaging method and process Methods 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims abstract description 3
- 230000004913 activation Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000003213 activating effect Effects 0.000 claims description 3
- 239000003550 marker Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 15
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009450 smart packaging Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
- G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
- G06K19/07372—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention proposes a kind of passive NFC anti-counterfeiting chips that anti-tamper detection is realized by detecting network resistor, including NFC signal processing unit and anti-tamper control unit, the NFC signal processing unit NFC signal processing unit, that is, NFC anti-counterfeiting chip, NFC base band, memory and power module including CPU and its connection, and the external pin of connection external antenna；The anti-tamper control unit includes anti-tamper control circuit and anti-tamper detection pin, and the tampering detection network outside anti-tamper detection pin connection, the tampering detection network is made of frangible conductive material.The circuit of the tampering detection network of NFC chip of the invention is not used in communication, can according to need arbitrarily devised cabling covering packaging, it is ensured that the full protection of commodity packaging.The method of the present invention NFC anti-counterfeiting chip can not re-used once demolition, the demand that effective solution commodity counterfeit prevention, tracking are traced to the source.
Description
Technical field
The present invention relates to commodity counterfeit preventions and field of tracing to the source, and particularly relate to a kind of anti-tamper by the power source realization that can be activated
The NFC anti-counterfeiting chip of detection function, can be used for commodity counterfeit prevention, traces to the source.
Background technique
Near-field communication, NFC (Near Field Communication) technology, is by non-contact radio-frequency identification (RFID)
And the integration of interconnection and interflow technology is evolved.Pass through integrated induction formula card reader on a single chip, icah wavw and point
The function of point to-point communication realizes that mobile payment, electronic bill, gate inhibition, mobile identification, anti-fake etc. are answered using mobile terminal
With.
NFC chip is widely used in packing box technology in recent years, the addition of NFC so that packing box is more friendly to user,
So that human-computer interaction is more convenient, also intelligent packaging is promoted gradually to be applied to internet of things field.
There is the features such as easily forging, transfer in the NFC anti-counterfeit measures in current practice, be easy to be cracked so that common
NFC anti-counterfeit measures have gradually become " ornaments " type technological means easily by low cost duplication, can not play really anti-fake
Purpose, let alone the demand of tracing to the source of high-quality are come so that high-quality genuine commodity and its business standing in the market receive
Serious extruding is received from the continuous impact and challenge, merchandise sales of fake products fakement, the development of enterprise receives extreme influence.
Also have enhances anti-counterfeiting performance by the way of frangible label, but frangible label is only to have damaged induction antenna, and label chip is
It is not easy impaired, this causes label chip that can bind antenna again, forges new product packaging, cannot play well
Anti-fake effect.
Existing NFC label chip is used to solve the problems, such as that very well chip is recycled when Application in Anti-counterfeiting, even if adopting
With the form of frangible label, although can not be written and read to label after label is broken, this has only damaged label antenna,
Label chip is less likely to be damaged, and binds antenna again after chip being removed and utilizes again.And label antenna is mark
Label obtain the important channel of energy communication with the outside world, have stringent design specification, itself there is many limitations, cannot arbitrarily cover packet
Dress.
Summary of the invention
The present invention proposes a kind of passive NFC anti-counterfeiting chip that anti-tamper detection is realized by detecting network resistor, can solve
Certainly the prior art cannot improve the defect for solving commodity counterfeit prevention function.
The technical scheme of the present invention is realized as follows: a kind of realize the passive of anti-tamper detection by detecting network resistor
NFC anti-counterfeiting chip, including NFC signal processing unit and anti-tamper control unit, the NFC signal processing unit include CPU and
Its NFC base band, memory and power module for connecting, and the external pin of connection external antenna；The anti-tamper control is single
Member includes anti-tamper control circuit and anti-tamper detection pin, the tampering detection network outside anti-tamper detection pin connection, institute
It states tampering detection network to be made of the frangible conductive material with resistance value, the anti-tamper control circuit can be by anti-tamper
Detect the resistance value of pin detection tampering detection network.
Preferably, the anti-tamper detection pin is two, the internal connection chip of two anti-tamper detection pins is anti-
Distort control circuit, external connection tampering detection network.
Preferably, the tampering detection network is not used in communication, arbitrarily devised cabling covering packaging can according to need.
Preferably, the NFC anti-counterfeiting chip is integrated on commodity packaging or commodity, firstly the need of activation, core after integrating
Piece detects anti-tamper pin network resistance automatically and this resistance value is recorded in chip when activation.
Preferably, it is described can be detected first when NFC anti-counterfeiting chip couples energy activated work by antenna it is anti-tamper
Pin network resistance value is detected, and this resistance value is compared with the network resistor initial value stored when activating in chip, if
Two value differences are different, and then label chip state is normal in admission threshold, realizes the operation of standard NFC function, is greater than if two value differences are different
Admission threshold then activates the anti-tamper control circuit of chip interior at once, and the corresponding flag bit of set is controlled by internal logic, this mark
Will position cannot be changed once set.
Preferably, the NFC anti-counterfeiting chip can also normally read information after triggering tampering detection preventing mechanism, but
It is the anti-tamper safety label position set in label, can not be modified after this marker bit set, can confirm phase by reader
Information is closed, but anti-tamper safety sign position state can be read in reader, to know commodity packaging good working condition.
Compared with the prior art, the advantages of the present invention are as follows: the circuit of the tampering detection network of NFC chip of the invention is not
For communicating, arbitrarily devised cabling covering packaging can according to need, it is ensured that the full protection of commodity packaging.The method of the present invention
NFC anti-counterfeiting chip can not re-used once demolition, the demand that effective solution commodity counterfeit prevention, tracking are traced to the source.
Detailed description of the invention
Fig. 1 is module diagram of the invention；
Fig. 2 is a kind of circuit module schematic diagram of embodiment of the invention；
Fig. 3 is a kind of working principle flow chart of embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Embodiment: referring to figure 1, figure 2 and figure 3, there are two external pins for standard NFC anti-counterfeiting chip tool, are respectively used to connect
Antenna input and output end.NFC antifalsification label chip provided by the invention increases on the basis of standard NFC anti-counterfeiting chip
A pair of anti-tamper detection pin.Anti-tamper detection pin is for connecting external tampering detection network.The completely compatible standard of the present invention
NFC anti-counterfeiting chip function can read equipment with the NFC of standard and be operated.But the place different from standard NFC anti-counterfeiting chip
It is the increased anti-tamper controling mechanism of chip interior.Integrated chip after commodity packaging or commodity firstly the need of activation,
Chip detects anti-tamper detection pin network resistance automatically and this resistance value is recorded in chip when activation.When label core
Piece can detect anti-tamper detection pin network resistance and first by this resistance value and core when coupling energy activated work by antenna
The network resistor initial value stored when activation in piece is compared, the label chip state if two value differences are different in admission threshold
Normally, the operation of standard NFC function is realized, it is different greater than the activation anti-tamper control of chip interior at once if admission threshold if two value differences
Circuit, the corresponding flag bit of set, is controlled by internal logic, this flag bit cannot be changed once set.
Anti-tamper control unit usually in a dormant state, only operates label chip in NFC read-write implement
When just activation chip interior anti-tamper control unit work, chip power-consumption is extremely low, does not need external power supply long run supply, can be with
It is long-term to maintain product effective.
The tampering detection network of NFC anti-counterfeiting chip is not used in communication, can according to need arbitrarily devised cabling covering packaging,
Ensure the full protection to commodity packaging.
Each NFC anti-counterfeiting chip has a label, and each label has unique encodings, and unique encodings are in chip production
Write-in, can not change, merchandise related information can be also stored in label.In the label implantation commodity or commodity packaging, it can pass through
Terminal with NFC reader function information in the contactless label reading of antenna area confirms merchandise news, from label
The information of middle reading, which can be transmitted to background server, to be verified, confirmation commodity true and false and commodity production of tracing to the source, logistics sale etc.
Link information etc..
A kind of passive NFC anti-counterfeiting chip for realizing anti-tamper detection function by detecting network resistor, to solve existing skill
Art cannot improve the defect for solving commodity counterfeit prevention function.It is provided on the basis of standard NFC anti-counterfeiting chip a kind of with anti-tamper
The NFC antifalsification label chip of detection function, the NFC anti-counterfeiting chip also add one group of anti-tamper detection other than antenna leads and draw
Foot.
As shown in Fig. 2, chip Plays NFC function of the present invention is by antenna 101, radio frequency interface 102, digital baseband 103, control
System and computing circuit 104 form.The antenna 101 connects radio frequency interface 102, processing and reader by BDB Bi-directional Data Bus
Analog interface coupling part；The radio frequency interface 102 connects digital baseband 103 by BDB Bi-directional Data Bus and handles NFC communication number
Word signal；The control connect digital baseband 103, Coordination Treatment chip interior by BDB Bi-directional Data Bus with arithmetic element 104
All units, the institute for completing standard NFC are functional.The completely compatible ISO14443 agreement of this partial circuit can be read with usual
Device or NFC mobile phone are compatible.The each label of the NFC label has unique encodings, and unique encodings are written in chip production, no
It can change, the region EEPROM of merchandise related information can be also stored in label.And anti-tamper functional unit is by clock circuit
105, electrification reset circuit 106, anti-tamper control circuit 107, anti-tamper detection pin 108 composition, wherein anti-tamper detection is drawn
Foot 108 is connect with anti-tamper control circuit 107.Clock circuit 105, electrification reset circuit 106, anti-tamper control circuit 107 are total
With connection control and arithmetic element 104, anti-tamper detection function is completed.
Anti-tamper detection pin is for connecting external tampering detection tampering detection network, this tampering detection network is by frangible material
Matter is made, and can not repair once breakage, even if by technological means again by the connection of two anti-tamper detection pins can not be with
Original detection network keeps resistance consistent.This label chip is integrated in after commodity packaging or commodity firstly the need of activation, and chip swashs
Anti-tamper detection pin network resistance is detected automatically and this resistance value is recorded in chip when living.When label chip passes through
Antenna can detect anti-tamper detection pin network resistance first and will swash in this resistance value and chip when coupling energy activated work
The network resistor initial value stored when living is compared, and label chip state is normal if two value differences are different in admission threshold,
Realization standard NFC function operation, if two value differences it is different be greater than admission threshold if at once activate the anti-tamper control circuit of chip interior,
The corresponding flag bit of set, is controlled by internal logic, this flag bit cannot be changed once set.Anti-tamper control unit is usually located
In dormant state, chip interior anti-tamper control is only just activated when NFC read-write implement operates label chip
Cell operation, chip power-consumption is extremely low, does not need external power supply long run supply, product can be maintained for a long time effective.The present invention uses
Tampering detection network can arbitrarily packaging or any position ring of commodity around, do not need to follow strictly design rule as image antenna,
It can be covered and be packed by circular network large area, preferably protect commodity.
It is as shown in Figure 3 to change dynamic detection security mechanism workflow:
(1) detect whether tamper-proof mechanisms have activated after chip electrification reset, chip only has mark if without activation
Quasi- NFC function.
(2) firstly the need of activation, the NFC after implanted chip commodity or commodity packaging and tampering detection network connection
Anti-counterfeiting chip can send instruction activation security module by the non-reader that connects of NFC.Automatic measurement after security module is started to work
The connected tampering detection network resistor of anti-tamper detection pin is simultaneously recorded in chip.Activation operation can only execute primary, this mistake
Journey is irreversible.
(3) the NFC anti-counterfeiting chip described in can detect anti-tamper detection first and draw when coupling energy activated work by antenna
This resistance value is simultaneously compared by foot network resistor with the network resistor initial value stored when activating in chip, if two value differences are different
Then label chip state is normal in admission threshold, realizes the operation of standard NFC function, different greater than if admission threshold if two value differences
The anti-tamper control circuit of chip interior, the corresponding flag bit of set are activated at once.
(4) by internal logic controlling mechanism, anti-tamper flag bit can only be write once, cannot be changed after writing once.When
Still can be communicated with reader with label chip after chip anti-tamper security mechanism triggering, but reader can be read it is anti-
Safety sign position state is distorted, to know commodity packaging good working condition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of passive NFC anti-counterfeiting chip for realizing anti-tamper detection by detecting network resistor, it is characterised in that: including NFC
Signal processing unit and anti-tamper control unit, the NFC signal processing unit include the NFC base band of CPU and its connection, storage
Device and power module, and the external pin of connection external antenna；The anti-tamper control unit includes anti-tamper control circuit
With anti-tamper detection pin, the anti-tamper tampering detection network detected outside pin connection, the tampering detection network is by frangible
The conductive material with resistance value be made, the anti-tamper control circuit can pass through anti-tamper detection pin detect tampering detection
The resistance value of network.
2. the passive NFC anti-counterfeiting chip according to claim 1 for realizing anti-tamper detection by detecting network resistor, special
Sign is: the anti-tamper detection pin is two, the internal anti-tamper control electricity of connection chip of two anti-tamper detection pins
Road, external connection tampering detection network.
3. the passive NFC anti-counterfeiting chip according to claim 2 for realizing anti-tamper detection by detecting network resistor, special
Sign is: the tampering detection network is not used in communication, can according to need arbitrarily devised cabling covering packaging.
4. according to claim 1-3 realize that the passive NFC of anti-tamper detection is anti-fake by detecting network resistor
Chip, it is characterised in that: the NFC anti-counterfeiting chip is integrated on commodity packaging or commodity, firstly the need of activation, chip after integrating
Automatically anti-tamper pin network resistance is detected when activation and this resistance value is recorded in chip.
5. the passive NFC anti-counterfeiting chip according to claim 4 for realizing anti-tamper detection by detecting network resistor, special
Sign is: described to detect anti-tamper detection pin net first when NFC anti-counterfeiting chip couples energy activated work by antenna
Network resistance value, and this resistance value is compared with the network resistor initial value stored when activating in chip, if two value differences are different
Then label chip state is normal in admission threshold, realizes the operation of standard NFC function, different greater than if admission threshold if two value differences
The anti-tamper control circuit of chip interior is activated at once, and the corresponding flag bit of set controlled by internal logic, this flag bit is once setting
Position cannot be changed.
6. the passive NFC anti-counterfeiting chip according to claim 5 for realizing anti-tamper detection by detecting network resistor, special
Sign is: the NFC anti-counterfeiting chip can also normally read information after triggering tampering detection preventing mechanism, but in label
Anti-tamper safety label position set, can not modify after this marker bit set, can confirm relevant information by reader, still
Anti-tamper safety sign position state can be read in reader, to know commodity packaging good working condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910656720.6A CN110263898A (en) | 2019-07-19 | 2019-07-19 | The passive NFC anti-counterfeiting chip of anti-tamper detection is realized by detecting network resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910656720.6A CN110263898A (en) | 2019-07-19 | 2019-07-19 | The passive NFC anti-counterfeiting chip of anti-tamper detection is realized by detecting network resistor |
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| CN110263898A true CN110263898A (en) | 2019-09-20 |
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| CN201910656720.6A Pending CN110263898A (en) | 2019-07-19 | 2019-07-19 | The passive NFC anti-counterfeiting chip of anti-tamper detection is realized by detecting network resistor |
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Application publication date: 20190920 |