CN106022435A - RFID chip anti-transfer method and anti-transfer RFID chip - Google Patents
RFID chip anti-transfer method and anti-transfer RFID chip Download PDFInfo
- Publication number
- CN106022435A CN106022435A CN201610268481.3A CN201610268481A CN106022435A CN 106022435 A CN106022435 A CN 106022435A CN 201610268481 A CN201610268481 A CN 201610268481A CN 106022435 A CN106022435 A CN 106022435A
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- contact regions
- rfid chip
- contact
- dot matrix
- external conductor
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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
- G06K19/0722—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
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Credit Cards Or The Like (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Provided are an RFID chip anti-transfer method and an anti-transfer RFID chip, relating to the RFID technology. The method comprises the steps of: 1) setting a first lattice type contact zone, and forming circuit connection between the first lattice type contact zone and an RFID chip, the RFID chip being provided with a first memory; 2) initialization: fixedly connecting an external characteristic conductor unit with the first lattice type zone, allowing all or partial contacts in the first lattice type zone to form electric connection with the external conductor, and the RFID chip detecting electric connection states between the contacts in the first lattice type zone and the external conductor, and recording the states in a first memory; and 3) after initialization, in a work state, the RFID chip detecting electric connection states between the contacts in the first lattice type zone and the external conductor to compare with stored records in the first memory, and setting the RFID chip to be in an abnormal state if the electric connection states are detected to be inconsistent with the stored records. The method can effectively avoid transferring a utilized RFID chip.
Description
Technical field
The present invention relates to RFID technique.
Background technology
RFID technique i.e. radio RF recognition technology, is a kind of non-contacting automatic identification technology,
Its ultimate principle is to utilize radiofrequency signal and Space Coupling (inductance or electromagnetic coupled) or radar anti-
The transmission characteristic penetrated, it is achieved the automatic identification to identified object.RFID has begun at present
False proof for article, such as High Grade Liquor false proof.RFID anti-counterfeit field, a master
Want problem to be how anti-transfer, namely prevent true label to be attached to puppet after peeling off on genuine piece
On product.Common method is to utilize the breaking-up of RFID label antenna to realize anti-transfer, namely
Tamper-evident, the technology such as frangible is utilized to make RFID label antenna destroyed when departing from attachment, from
And make label not work.But in said method, RFID chip still stands intact, it is possible to quilt
Taking off rear Reseal to utilize, the most anti-transfer is the most thorough.
Summary of the invention
The technical problem to be solved is to provide one can effectively prevent RFID core
The method that sheet transfer utilizes, and can effectively prevent the RFID chip of transfer utilization.
The present invention solves described technical problem and employed technical scheme comprise that, RF identification chip anti-rotation
Shifting method, it is characterised in that comprise the steps:
1) the first dot matrix contact regions is set, and it is connected with RFID chip formation circuit,
RFID chip has first memory；
2) initialize: the fixing connection of surface conductor element and the first dot matrix contact regions,
Make all or part of contact in the first dot matrix contact regions be formed with external conductor to electrically connect,
RFID chip detects the status of electrically connecting of the contact in the first dot matrix contact regions and external conductor
And it is recorded in first memory；
3), after having initialized, in duty, RFID chip detects the first dot matrix contact
The contact in district and the status of electrically connecting of external conductor, with the storage record ratio in first memory
Relatively, if inconsistent, then it is abnormality by RFID chip setting themselves.
Described first dot matrix contact regions is fixedly installed on the outer surface of chip.
Described surface conductor element includes a metal level, this metal level and RFID chip
GND foot formed electrical connection.
Described surface conductor element passes through insulating cement or conductive adhesive in the first dot matrix
Contact regions, the contact making the first dot matrix contact regions is solid with the status of electrically connecting of surface conductor
Fixed.
The anti-transfer RF identification chip that the present invention provides includes following part:
Contact regions interface, connects for the tactile dot circuit in contact regions, and described contact regions connects
Mouth includes the junction point of at least two contact；
Contact regions state detection circuit, for detecting the electrical connection of contact regions interface and external conductor
State；
First memory, in time having initialized, store contact regions interface with external conductor
Status of electrically connecting；
Comparison controller, is used for comparing following A, B two states the most consistent, and according to than
Relatively result arranges the state of RFID chip self:
A, the electrical connection distribution of contact regions interface and external conductor when having initialized,
B, duty lower contact district interface and the electrical connection distribution of external conductor；
Described contact regions state detection circuit is connected with contact regions interface, and contact regions testing circuit is also
Form data transmission to be connected with first memory, comparison controller and contact regions state detection circuit
Connecting, comparison controller is also connected with first memory.
Further, also include that the first dot matrix contact regions, its contact are touched with contact regions interface
Point junction point forms electrical connection, and described first dot matrix contact regions is fixedly installed on RFID chip
Surface.
Also include that external conductor, described external conductor electrically connect with the GND end of RFID chip.
Further, described first dot matrix contact regions includes the contact of at least two height, this
Sample can strengthen the randomness that the first dot matrix contact regions is connected with external conductor further.
The invention has the beneficial effects as follows, RFID chip is able to detect that the situation that transfer utilizes, and
Oneself state can be set as abnormal according to testing result, effectively prevent RFID chip transfer profit
With.
Accompanying drawing explanation
Fig. 1 is the RFID chip structural representation of the present invention.
Fig. 2 is the RFID chip antenna schematic diagram of the present invention.
Fig. 3 is the RFID chip antenna schematic diagram that have employed irregularly shaped external conductor.
Detailed description of the invention
Surface conductor of the present invention refers to external conductor preset when initializing, " outer
Portion's conductor " include surface conductor, also include the external conductor after transfer utilization.Therefore,
" surface conductor " is a subclass of " external conductor ".
The anti-transfer method of RF identification chip of the present invention comprises the steps:
1) the first dot matrix contact regions is set, and it is connected with RFID chip formation circuit,
RFID chip has first memory；Described first dot matrix contact regions is fixedly installed on chip
Outer surface.
2) initialize: surface conductor element includes a metal level, this metal level and RFID
The GND foot of chip forms electrical connection.
The fixing connection of surface conductor element and the first dot matrix contact regions, makes the first dot matrix
All or part of contact in contact regions and external conductor are formed and electrically connects, and RFID chip detects the
The status of electrically connecting of the contact in one dot matrix contact regions and external conductor is also recorded in first and deposits
Reservoir；
3), after having initialized, in duty, RFID chip detects the first dot matrix contact
The contact in district and the status of electrically connecting of external conductor, with the storage record ratio in first memory
Relatively, if inconsistent, then it is abnormality by RFID chip setting themselves.
Described surface conductor element passes through insulating cement or conductive adhesive in the first dot matrix
Contact regions, the contact making the first dot matrix contact regions is solid with the status of electrically connecting of surface conductor
Fixed.
The anti-transfer RF identification chip of the present invention includes following part:
Contact regions interface, connects for the tactile dot circuit in contact regions, and described contact regions connects
Mouth includes the junction point of at least two contact；
Contact regions state detection circuit, for detecting the electrical connection of contact regions interface and external conductor
State；
First memory, in time having initialized, store contact regions interface with external conductor
Status of electrically connecting；
Comparison controller, is used for comparing following A, B two states the most consistent, and according to than
Relatively result arranges the state of RFID chip self:
A, the electrical connection distribution of contact regions interface and external conductor when having initialized,
B, duty lower contact district interface and the electrical connection distribution of external conductor；
Described contact regions state detection circuit is connected with contact regions interface, and contact regions testing circuit is also
Form data transmission to be connected with first memory, comparison controller and contact regions state detection circuit
Connecting, comparison controller is also connected with first memory.
Also including the first dot matrix contact regions, its contact is connected point-shaped with the contact of contact regions interface
Becoming electrical connection, described first dot matrix contact regions is fixedly installed on the surface of RFID chip.
Further, described first dot matrix contact regions includes the contact of at least two height,
That is, coordinate there is the second point configuration contact regions of differing heights contact, the contact point (electricity of the two
Connect) the most random and irregular, forge difficulty the biggest.
Embodiment:
Such as Fig. 1, RFID chip design increases some drawing in addition to antenna leads and GND pin
Foot, in processing chip technology link, long metal ball is formed little contact by these pins.RFID
It is ground connection or floating that chip internal has special testing circuit can detect these little contacts
State.Specific regions is also opened up, for depositing detect each in the memorizer of RFID chip
Little contact ground/floating state.Additionally, RFID chip also has comparison circuit, can automatically contrast
Leave the above-mentioned ground connection/floating state in memorizer and currently detected ground connection/floating shape in
State.
Such as Fig. 2, RFID label antenna has certain particular design for above-mentioned RFID chip,
Its core is the increase in a sheet of metal level (shadow region in figure).When RFID chip is with falling
Button technique is encapsulated in RFID label antenna, and numerous little contacts will be connected to core by metal level
Sheet GND foot, namely ground connection.But, owing to these little contact Area comparisons are little,
Do not ensure that each little contact can good connection, thus the actually little contact ground of part
And part little contact floating, the distribution of this state is random.
After RFID chip package becomes RFID label tag, an initialization action to be carried out.Its process
It is ground connection/floating state that RFID chip detects all little contacts under the effect of special instruction,
And these ground connection/floating state is put in memorizer.Once RFID chip completes initialization,
Ground connection in memorizer/floating status data will be locked out change.Hereafter, RFID chip
Can automatically contrast the ground connection/floating state leaving in memorizer after powering on to survey with current every time
Ground connection/floating state that amount arrives.
When RFID chip is removed and Reseal, it is difficult to ensure that the ground connection of these little contacts/floating
Dummy status is the most constant.As long as now re-powering, RFID chip will detect current ground connection
/ floating state is inconsistent with ground connection in memorizer/floating state.Once this thing happens, RFID
Chip just actively and irreversibly changes particular address in oneself state, such as alterable storage
Data also lock.
Extraneous read write line is easy to know the change of the above-mentioned state of RFID chip, thus knows this
RFID chip is recycling after transfer, is finally reached the purpose of anti-transfer.
On the basis of the above, in order to further enhance the randomness of little contact ground/floating state
And controllability, can be suitably modified in RFID label antenna.Such as Fig. 3, it is used for connecting little
The metal level of contact and GND foot is designed to irregularly shaped, then ensure that portion from design
Little contact is divided to be necessarily in floating state.Chip para-position when being placed in RFID antenna exists
Error, trickle position deviation all can cause little contact ground/floating state different, therefore be
The metal level being identical also ensures that certain randomness.
Claims (8)
1. the anti-transfer method of RF identification chip, it is characterised in that comprise the steps:
1) arranging the first dot matrix contact regions, and it be connected with RFID chip formation circuit, RFID chip has first memory；
2) initialize: the fixing connection of surface conductor element and the first dot matrix contact regions, making all or part of contact in the first dot matrix contact regions be formed with external conductor to electrically connect, RFID chip detects the contact in the first dot matrix contact regions and the status of electrically connecting of external conductor and is recorded in first memory；
3), after having initialized, in duty, RFID chip detects the contact of the first dot matrix contact regions and the status of electrically connecting of external conductor, compares with the storage record in first memory, if inconsistent, then it is abnormality by RFID chip setting themselves.
2. the anti-transfer method of RF identification chip as claimed in claim 1, it is characterised in that described first dot matrix contact regions is fixedly installed on the outer surface of chip.
3. the anti-transfer method of RF identification chip as claimed in claim 1, it is characterised in that described surface conductor element includes a metal level, this metal level is formed with the GND foot of RFID chip and electrically connects.
4. the anti-transfer method of RF identification chip as claimed in claim 1, it is characterized in that, described surface conductor element in the first dot matrix contact regions, makes the contact of the first dot matrix contact regions fix with the status of electrically connecting of surface conductor by insulating cement or conductive adhesive.
The most anti-transfer RF identification chip, it is characterised in that include following part:
Contact regions interface, connects for the tactile dot circuit in contact regions, and described contact regions interface includes the junction point of at least two contact；
Contact regions state detection circuit, for detecting the status of electrically connecting of contact regions interface and external conductor；
First memory, the status of electrically connecting with external conductor of storage contact regions interface in time having initialized；
Comparison controller, is used for comparing following A, B two states the most consistent, and arranges the state of RFID chip self according to comparative result:
A, the electrical connection distribution of contact regions interface and external conductor when having initialized,
B, duty lower contact district interface and the electrical connection distribution of external conductor；
Described contact regions state detection circuit is connected with contact regions interface, and contact regions testing circuit also forms data transmission and is connected with first memory, and comparison controller is connected with contact regions state detection circuit, and comparison controller is also connected with first memory.
Anti-transfer RF identification chip the most as claimed in claim 5, it is characterised in that also include the first dot matrix contact regions, its contact is formed with the contact junction point of contact regions interface and electrically connects, and described first dot matrix contact regions is fixedly installed on the surface of RFID chip.
Anti-transfer RF identification chip the most as claimed in claim 5, it is characterised in that also include that external conductor, described external conductor electrically connect with the GND end of RFID chip.
Anti-transfer RF identification chip the most as claimed in claim 6, it is characterised in that described first dot matrix contact regions includes 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 |
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| Publication Number | Publication Date |
|---|---|
| CN106022435A true CN106022435A (en) | 2016-10-12 |
| CN106022435B CN106022435B (en) | 2018-12-21 |
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| 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 |
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Cited By (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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005086415A (en) * | 2003-09-08 | 2005-03-31 | Hitachi Cable Ltd | Sensor switch |
| 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 |
-
2016
- 2016-04-27 CN CN201610268481.3A patent/CN106022435B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005086415A (en) * | 2003-09-08 | 2005-03-31 | Hitachi Cable Ltd | Sensor switch |
| 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106022435B (en) | 2018-12-21 |
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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. |
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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. |
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