CN106022435B - The anti-transfer method of RF identification chip and anti-transfer RF identification chip - Google Patents
The anti-transfer method of RF identification chip and anti-transfer RF identification chip Download PDFInfo
- Publication number
- CN106022435B CN106022435B CN201610268481.3A CN201610268481A CN106022435B CN 106022435 B CN106022435 B CN 106022435B CN 201610268481 A CN201610268481 A CN 201610268481A CN 106022435 B CN106022435 B CN 106022435B
- Authority
- CN
- China
- Prior art keywords
- contact regions
- contact
- dot matrix
- rfid chip
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- G06K19/0722—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 comprising an arrangement for testing the record carrier
Abstract
The anti-transfer method of RF identification chip and anti-transfer RF identification chip, are related to RFID technique.The method of the present invention includes following step: 1) the first dot matrix contact regions are arranged, and it is formed circuit connection with RFID chip, RFID chip has first memory；2) initialize: surface conductor element is fixedly connected with the first dot matrix contact regions, it is electrically connected all or part of contact in the first dot matrix contact regions with external conductor formation, RFID chip detects the status of electrically connecting of contact and external conductor in the first dot matrix contact regions and is recorded in first memory；3) after the completion of initializing, in working condition, RFID chip detects the contact of the first dot matrix contact regions and the status of electrically connecting of external conductor, is abnormality by RFID chip setting themselves if inconsistent compared with the storage record in first memory.The RFID chip that the present invention can effectively prevent transfer to utilize.
Description
Technical field
The present invention relates to RFID techniques.
Background technique
RFID technique, that is, radio RF recognition technology is a kind of non-contacting automatic identification technology, the basic principle is that sharp
With radiofrequency signal and Space Coupling (inductance or electromagnetic coupling) or the transmission characteristic of radar reflection, realize to identified object from
Dynamic identification.RFID has begun for the anti-fake of article at present, such as High Grade Liquor is anti-fake.In RFID anti-counterfeit field, one
Major subjects are how anti-transfer, that is, are attached in adulterant after preventing true label from being removed from genuine piece.Common method
It is to realize anti-transfer using the breaking-up of RFID label antenna, that is, so that RFID label antenna is existed using the technologies such as tamper-evident, frangible
It is destroyed when being detached from attachment, to prevent label from working.But in the above method, RFID chip is still intact, it is possible to
Utilization is Resealed after being removed, transfer anti-in this way is not thorough.
Summary of the invention
The technical problem to be solved by the invention is to provide one kind, and RFID chip can be effectively prevent to shift the side utilized
Method, and the RFID chip that transfer can be effectively prevent to utilize.
The present invention solve the technical problem the technical solution adopted is that, the anti-transfer method of RF identification chip, feature
It is, includes the following steps:
1) the first dot matrix contact regions are set, and it is formed into circuit connection with RFID chip, RFID chip has first
Memory；
2) initialize: surface conductor element is fixedly connected with the first dot matrix contact regions, makes the first dot matrix contact
All or part of contact in area is electrically connected with the formation of surface conductor element, and RFID chip detects the first dot matrix contact regions
In contact and surface conductor element status of electrically connecting and be recorded in first memory；
3) after the completion of initializing, in working condition, the contact that RFID chip detects the first dot matrix contact regions is led with outside
RFID chip setting themselves, if inconsistent, are different compared with the storage record in first memory by the status of electrically connecting of body
Normal state.
First dot matrix contact regions are fixedly installed on the outer surface of chip.
The surface conductor element includes a metal layer, and the GND foot formation of the metal layer and RFID chip is electrically connected
It connects.
The surface conductor element, in the first dot matrix contact regions, makes at first point by insulating cement or conductive adhesive
The contact of configuration contact regions and the status of electrically connecting of surface conductor are fixed.
Anti- transfer RF identification chip provided by the invention includes following part:
Contact regions interface, for forming circuit connection with the contact of contact regions, the contact regions interface includes at least two
The tie point of contact；
Contact regions state detection circuit, for detecting the status of electrically connecting of contact regions interface and external conductor；
First memory, storage contact regions interface and surface conductor element is electrically connected shape when completing for initializing
State；
Comparison controller, it is whether consistent for comparing following A, B two states, and RFID chip is arranged according to comparison result
The state of itself:
A, contact regions interface and surface conductor element are electrically connected distribution when initialization is completed,
B, working condition lower contact area interface and external conductor are electrically connected distribution；
The contact regions state detection circuit is connect with contact regions interface, and contact regions state detection circuit is also stored with first
Device forms data transmission connection, and comparison controller is connect with contact regions state detection circuit, and comparison controller is also stored with first
Device connection.
It further, further include the first dot matrix contact regions, contact and the contact tie point of contact regions interface form electricity
Connection, first dot matrix contact regions are fixedly installed on the surface of RFID chip.
It further include surface conductor element, the surface conductor element is electrically connected with the end GND of RFID chip.
Further, first dot matrix contact regions include the contact of at least two height, can further be added in this way
The randomness that strong first dot matrix contact regions are connect with external conductor.
The invention has the advantages that RFID chip is able to detect that the case where transfer utilizes, and can be according to testing result
Oneself state is set as exception, effectively prevents RFID chip transfer from utilizing.
Detailed description of the invention
Fig. 1 is RFID chip structural schematic diagram of the invention.
Fig. 2 is RFID chip antenna schematic diagram of the invention.
Fig. 3 is the RFID chip antenna schematic diagram using irregular shape external conductor.
Specific embodiment
Surface conductor of the present invention refers to external conductor preset when initialization, and " external conductor " includes outer
Portion's feature conductor also includes the external conductor after transfer utilizes.Therefore, " surface conductor " is a son of " external conductor "
Class.
The anti-transfer method of RF identification chip of the invention includes the following steps:
1) the first dot matrix contact regions are set, and it is formed into circuit connection with RFID chip, RFID chip has first
Memory；First dot matrix contact regions are fixedly installed on the outer surface of chip.
2) initialize: surface conductor element includes a metal layer, and the GND foot of the metal layer and RFID chip is formed
Electrical connection.
Surface conductor element is fixedly connected with the first dot matrix contact regions, makes the whole in the first dot matrix contact regions
Or the formation of part contact and surface conductor element be electrically connected, RFID chip detect contact in the first dot matrix contact regions and
The status of electrically connecting of surface conductor element is simultaneously recorded in first memory；
3) after the completion of initializing, in working condition, the contact that RFID chip detects the first dot matrix contact regions is led with outside
RFID chip setting themselves, if inconsistent, are different compared with the storage record in first memory by the status of electrically connecting of body
Normal state.
The surface conductor element, in the first dot matrix contact regions, makes at first point by insulating cement or conductive adhesive
The contact of configuration contact regions and the status of electrically connecting of surface conductor are fixed.
Anti- transfer RF identification chip of the invention includes following part:
Contact regions interface, for forming circuit connection with the contact of contact regions, the contact regions interface includes at least two
The tie point of contact；
Contact regions state detection circuit, for detecting the status of electrically connecting of contact regions interface and external conductor；
First memory, storage contact regions interface and surface conductor element is electrically connected shape when completing for initializing
State；
Comparison controller, it is whether consistent for comparing following A, B two states, and RFID chip is arranged according to comparison result
The state of itself:
A, contact regions interface and surface conductor element are electrically connected distribution when initialization is completed,
B, working condition lower contact area interface and external conductor are electrically connected distribution；
The contact regions state detection circuit is connect with contact regions interface, and contact regions state detection circuit is also stored with first
Device forms data transmission connection, and comparison controller is connect with contact regions state detection circuit, and comparison controller is also stored with first
Device connection.
It further include the first dot matrix contact regions, contact is electrically connected with the formation of the contact tie point of contact regions interface, described
First dot matrix contact regions are fixedly installed on the surface of RFID chip.
Further, first dot matrix contact regions include the contact of at least two height, that is, cooperation is to have not
With the second dot matrix contact regions of height contact, the contact point (electrical connection) of the two is more random and irregular, forges difficulty
It is bigger.
Embodiment:
Such as Fig. 1, RFID chip is designed increases several pins in addition to antenna leads and GND pin, in processing chip technology
Link, these pins are metal ball shaped at small contact by length.There is special detection circuit to can detecte these inside RFID chip
Small contact is the state of ground connection or floating.Specific regions are also opened up in the memory of RFID chip, are detected for storing
Each small contact ground/floating state.In addition, there are also comparison circuits for RFID chip, it can compare and be stored in memory automatically
Above-mentioned ground connection/floating state and currently detected ground connection/floating state.
Such as Fig. 2, RFID label antenna has certain special designing for above-mentioned RFID chip, and core is to increase one greatly
Piece metal layer (shadow region in figure).When RFID chip is encapsulated into RFID label antenna with Flip-chip, numerous small contacts
It will be connected to chip GND foot by metal layer, that is, be grounded.But since these small contact contacts area are smaller, not
Can guarantee each small contact can good connection, thus the actually small contact ground in part and the small contact floating in part be this
The distribution of state is random.
After RFID chip package is at RFID tag, an initialization action is carried out.Its process is the work in special instruction
Ground connection/floating state of all small contacts is detected with lower RFID chip, and these ground connection/floating state is put in memory.
Once RFID chip completes initialization, the ground connection in memory/floating status data will be locked out change.Hereafter,
RFID chip can compare automatically the ground connection/floating state being stored in memory after powering on every time and connect with what is currently measured
Ground/floating state.
When RFID chip is removed and is Resealed, it is difficult to ensure that the ground connection of these small contacts/floating state is all constant.
As long as re-powering at this time, RFID chip will detect that ground connection/floating state is not in current ground connection/floating state and memory
Unanimously.Once this thing happens, RFID chip just changes actively and irreversibly special in oneself state, such as alterable storage
Determine the data of address and locking.
Extraneous reader is easy to know the change of the above-mentioned state of RFID chip, thus after knowing that the RFID chip is transfer
Recycling, it is finally reached the purpose of anti-transfer.
On the basis of the above, in order to further enhance small contact ground/floating state randomness and controllability, Ke Yi
It is suitably modified in RFID label antenna.Such as Fig. 3, the metal layer for connecting small contact and GND foot is designed to irregular shape,
Then ensure that the small contact in part is necessarily in floating state from design.Chip aligns presence when being placed in RFID antenna
Error, subtle position deviation can all cause small contact ground/floating state different, so even being that identical metal layer also can
Ensure certain randomness.
Claims (8)
1. the anti-transfer method of RF identification chip, which is characterized in that include the following steps:
1) the first dot matrix contact regions are set, and it is formed into circuit connection with RFID chip, RFID chip has the first storage
Device；
2) initialize: surface conductor element is fixedly connected with the first dot matrix contact regions, is made in the first dot matrix contact regions
The formation of all or part of contact and surface conductor element be electrically connected, in the first dot matrix contact regions of RFID chip detection
The status of electrically connecting of contact and surface conductor element is simultaneously recorded in first memory；
3) after the completion of initializing, in working condition, RFID chip detects contact and the external conductor of the first dot matrix contact regions
RFID chip setting themselves, if inconsistent, are abnormal shape compared with the storage record in first memory by status of electrically connecting
State.
2. the anti-transfer method of RF identification chip as described in claim 1, which is characterized in that first dot matrix contact regions
It is fixedly installed on the outer surface of chip.
3. the anti-transfer method of RF identification chip as described in claim 1, which is characterized in that the surface conductor element
Including a metal layer, which is electrically connected with the formation of the GND foot of RFID chip.
4. the anti-transfer method of RF identification chip as described in claim 1, which is characterized in that the surface conductor element
By insulating cement or conductive adhesive in the first dot matrix contact regions, lead the contact of the first dot matrix contact regions with surface
The status of electrically connecting of body is fixed.
5. anti-transfer RF identification chip, which is characterized in that including following part:
Contact regions interface, for forming circuit connection with the contact of contact regions, the contact regions interface includes at least two contacts
Tie point；
Contact regions state detection circuit, for detecting the status of electrically connecting of contact regions interface and external conductor；
First memory stores the status of electrically connecting of contact regions interface and surface conductor element when completing for initializing；
Comparison controller, it is whether consistent for comparing following A, B two states, and RFID chip itself is arranged according to comparison result
State:
A, contact regions interface and surface conductor element are electrically connected distribution when initialization is completed,
B, working condition lower contact area interface and external conductor are electrically connected distribution；
The contact regions state detection circuit is connect with contact regions interface, contact regions state detection circuit also with first memory shape
It transmits and connects at data, comparison controller is connect with contact regions state detection circuit, and comparison controller also connects with first memory
It connects.
6. anti-transfer RF identification chip as claimed in claim 5, which is characterized in that it further include the first dot matrix contact regions,
Its contact is electrically connected with the formation of the contact tie point of contact regions interface, and first dot matrix contact regions are fixedly installed on RFID core
The surface of piece.
7. anti-transfer RF identification chip as claimed in claim 5, which is characterized in that it further include surface conductor element,
The surface conductor element is electrically connected with the end GND of RFID chip.
8. anti-transfer RF identification chip as claimed in claim 6, which is characterized in that first dot matrix contact regions include
The contact of at least two height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268481.3A CN106022435B (en) | 2016-04-27 | 2016-04-27 | The anti-transfer method of RF identification chip and anti-transfer RF identification chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268481.3A CN106022435B (en) | 2016-04-27 | 2016-04-27 | The anti-transfer method of RF identification chip and anti-transfer RF identification chip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106022435A CN106022435A (en) | 2016-10-12 |
| CN106022435B true CN106022435B (en) | 2018-12-21 |
Family
ID=57081535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610268481.3A Active CN106022435B (en) | 2016-04-27 | 2016-04-27 | The anti-transfer method of RF identification chip and anti-transfer RF identification chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106022435B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106447016A (en) * | 2016-11-29 | 2017-02-22 | 珠海南方集成电路设计服务中心 | Protection method and system for enabling or disabling of RFID in passive state |
| CN109766983A (en) * | 2019-01-02 | 2019-05-17 | 上海坤锐电子科技有限公司 | The anti-transfer method of radio frequency chip, electronic tag, detection module, chip, article shape and displacement detecting method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102693445A (en) * | 2012-05-23 | 2012-09-26 | 李东风 | Electronic tag |
| CN103870851A (en) * | 2012-12-11 | 2014-06-18 | 天津泰睿通科技有限公司 | Parameter uniqueness anti-counterfeiting method for self-authentication information |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005086415A (en) * | 2003-09-08 | 2005-03-31 | Hitachi Cable Ltd | Sensor switch |
-
2016
- 2016-04-27 CN CN201610268481.3A patent/CN106022435B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102693445A (en) * | 2012-05-23 | 2012-09-26 | 李东风 | Electronic tag |
| CN103870851A (en) * | 2012-12-11 | 2014-06-18 | 天津泰睿通科技有限公司 | Parameter uniqueness anti-counterfeiting method for self-authentication information |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106022435A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9741231B2 (en) | Tamper/damage detection | |
| CN105913108B (en) | RFID chip transfer prevention method, transfer prevention RFID chip and circuit | |
| CN106022435B (en) | The anti-transfer method of RF identification chip and anti-transfer RF identification chip | |
| US20170193347A1 (en) | Dual-mode anti-counterfeiting tag | |
| CN107437106B (en) | Tamper detection device | |
| US20180197057A1 (en) | Anti-counterfeit label having increased security | |
| US10186126B2 (en) | Multi-port straps incorporating sensing features | |
| CN104463313A (en) | Ultrahigh frequency electronic tag with anti-dismantling protection function and anti-dismantling protection method | |
| CN109272092A (en) | A kind of UHF RFID tag that can detect screw loosening | |
| CN109492725B (en) | Label and anti-counterfeiting method | |
| CN108681769A (en) | RFID antifalsification labels | |
| BR112020013124A2 (en) | rfid tags using multilayer constructions for improved durability | |
| US20210397920A1 (en) | Device and method for detecting opening of or an attempt to open a closed container | |
| CN102693445B (en) | A kind of electronic tag | |
| CN208589046U (en) | RFID antifalsification label | |
| CN210348532U (en) | Passive NFC anti-counterfeiting chip for realizing tamper-proof detection by detecting on-off of pin | |
| CN105956651B (en) | The RFID chip utilized is shifted in prevention corrosion treatment | |
| CN104463266B (en) | RFID method for anti-counterfeit and chip | |
| CN103985674A (en) | Anti-attack structure of security chip and anti-attack method | |
| TWI468704B (en) | Method for testing interposer | |
| CN102609751A (en) | Anti-dismantling super-high frequency electronic tag being destroyed once dismantled | |
| CN103514475A (en) | Thick antenna discrete ultrahigh frequency intelligent label | |
| CN106150214A (en) | A kind of electronic lock of band auto-lock function | |
| CN218332613U (en) | Double-interface chip card | |
| CN202854864U (en) | RFID nail-type responder with UHF frequency band |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190311 Address after: 621000 No. 128 Mianxing East Road, Mianyang High-tech Zone, Sichuan Province Patentee after: Sichuan Kiloway Electron Inc. Address before: 214434 B3 Floor, Cyberport, Yangtze River Creative Intelligence Industrial Park, 201 Jinshan Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: Jiangsu kiloway Electronic Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191111 Address after: 621000 a412, No.133, mianxing East Road, high tech Zone, Mianyang City, Sichuan Province Patentee after: Sichuan kailuwei Technology Co., Ltd Address before: 621000 Sichuan city of Mianyang province high tech Zone Mian Xing Road No. 128 Patentee before: Sichuan Kiloway Electron Inc. |
|
| TR01 | Transfer of patent right |