CN109902790A - A kind of adaptive RFID chip of multiband and its application method - Google Patents
A kind of adaptive RFID chip of multiband and its application method Download PDFInfo
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Abstract
The invention discloses a kind of adaptive RFID chip of multiband and its application methods, it is connect by multiple spot coupled antenna contact sets with the antenna of multiple groups different frequency range, when the pulse signal of external reader reaches chip, the antenna of corresponding frequency band obtains carrier signal and passes to chip, the channel of multiband coupling channel mould group simultaneous resonance opening corresponding frequency band, required energy and por signal when providing work for RFID chip inside each section circuit, each section circuit synchronization starts work, clock signal required for circuit works normally is extracted from carrier signal, and the instruction and data on carrier wave is demodulated for digital module processing, communication confirmation is carried out according to instruction, data to be sent are modulated, external reader is back to by corresponding frequency band channel, complete read-write operation.The present invention can adapt to the reader of various different frequencies, different distance automatically, can meet the needs of different scenes simultaneously, solve the drawbacks of previous chip cannot be compatible with multiple application scenarios.
Description
[technical field]
The present invention relates to multiband adaptive RF chip technologies, and in particular to adapts to different frequency, different read-writes automatically
Distance, the radio frequency chip technology that can be read and write in batches.
[background technique]
Currently, all trades and professions are quickly to intelligent automaticization direction transition and upgrade, intelligent producing line, intelligent storage,
Intelligence sale and consumer largely use RFID chip technology in the anti-fake daily uses such as verifying of tracing to the source of commodity, but
Current all kinds of RFID chips existing in the world, only single working frequency and reading/writing distance, such as the superelevation of 930MHz
Frequency chip, can only with the RFID on producing line, warehouse logistics it is dedicated in communicated away from reader, but can not be with NFC mobile phone, hand-held
The low coverages Portable mobile terminal such as machine is communicated；And the high frequency chip of 13.56MHz, it can be with the low coverages such as NFC mobile phone, hand-held set
Terminal is communicated, but can not with the RFID on producing line, warehouse logistics it is dedicated in communicated away from reader.Therefore, state at present
, all there is great limitation in actual use in all kinds of RFID chips on border.
Can not be general between application scenarios, be not only unable to satisfy the use demand of different scenes, more because the data in chip without
Method carries out data sharing between the individual nodes, does not plan a successor in entire data chain, can not be by production, warehouse logistics, pin
It the full chain of links such as sells, consume to get through, there are information islands between each scene, and it is full-range seriously to restrict intelligent automaticization system
Seamless operation.
Chip enterprises many in the world are having tried to solve the problems, such as present at present, but because by various frequencies
Section, can not be compatible between various standard system chips, various corresponding read-write equipments and chip design complexity, wafer specimen
It tests that difficulty is big, restriction of cost high condition, not can effectively solve the above problem yet substantially so far.
[summary of the invention]
To solve the above problems, the present invention provides a kind of adaptive RFID chip of multiband, pass through multiple spot
Coupled antenna contact sets are connect with the antenna of multiple groups different frequency range, when the pulse signal of external reader reaches chip, corresponding frequency
The antenna of section obtains carrier signal and passes to chip, and carrier frequency coupling channel mould group simultaneous resonance opens the logical of corresponding frequency band
Road, required energy and por signal, each section circuit synchronization start when providing work for each section circuit inside RFID chip
Work extracts clock signal required for circuit works normally from carrier signal, and the instruction and data on carrier wave is demodulated
Out for digital module processing, communication confirmation is carried out according to instruction, data to be sent are modulated, it is logical by corresponding frequency band
Road is back to external reader, completes read-write operation.
This chip includes multiple spot coupled antenna contact sets mould group, multiband coupling channel mould group, digital mould group, digital mould group
Including chip pulse power supply mould group, circuit synchronization mould group, clock mould group, data modulation mould group, central processing unit, communication confirmation
The moulds groups such as mould group, RAM, ROM, E2PROM interface and storage.
Multiple spot coupled antenna contact sets mould group (MultipointAntenna Coupler), while connecting multiple groups different frequencies
The coupled outside antenna of section, when the pulse signal of external reader reaches, the antenna of corresponding frequency band obtains carrier signal, passes through
The mould group passes into chip interior.
Multiband coupling channel mould group (Carrier Frequenly Coupler Interface), according to coupled antenna
The pulse signal frequency range simultaneous resonance that transmitting is come in, adaptively opens the channel of corresponding frequency range, and the pulse of the frequency range is believed
Number pass into the chip interiors mould groups such as the pulse power supply mould group, circuit synchronization mould group, clock module of chip.
Chip pulse power supply mould group (Energy), required energy when providing work for each section circuit inside RFID chip
Amount.
Circuit synchronization mould group (POR), provides por signal for chip, and each section circuit synchronization is made to start work.
Clock module (Clock) extracts clock signal required for circuit works normally from carrier signal.
Data modulate mould group (Data), the instruction and data on carrier wave are demodulated to handle and treat for digital mould group
The data of transmission are modulated.
Central processing unit mould group (Control&Arithmetic Unit), is the control centre of monolith chip, in chip
The central processor unit built executes each row operation, storage, data transmission and data encryption etc. and enables.
Communication response mould group (ATR_Answer to Request), when within the scope of the Antenna Operation of reader, works as read-write
Device to chip issue Request all (or: after Requeststd) ordering, this mould group of chip starts, and establishes whereby and read-write
The first step of device communicates.
Overlapping mould group (AntiCollision) is prevented, prevents chip overlapping is mixed from disturbing.If there is multiple chips in reading and writing device antenna
Working range in, this module of chip starts, and reader with all chip communications, obtains the sequence of each chip first
Number, then, one of chip is selected according to sequence number.
The selection of chip confirms mould group (SelectApplication), confirms the selection to chip.
Communication is recognized each other mould group (Authentication&Access Control), after chip confirmation is selected, starts this mould
Group be mutually authenticated between chip and reader.Only by being mutually authenticated, further operation just can be carried out.
Random access memory (RAM) cooperates Control&Arithmetic Unit, operation result is temporarily deposited
Storage；If having data to be stored to E2PROM, takes out data and be stored in E2PROM；If having data to be transmitted to reader, take out
Data submit radio-frequency interface circuit to be handled, send reader to by the antenna on chip.
Read-only memory (ROM), necessary program instruction required for curing chip is run.
Data encryption mould group (Crypto Unit), the encryption and cryptoguard of complete paired data.
Band electrically erasable programmable memory interface mould group (E2PROM Interface), this mould group are the interface of E2PROM
Circuit.
Band electrically erasable programmable read-only memory (E2PROM Memory), band electrically erasable programmable read-only memory
After the sign off of reader, the data of this communication of persistence.
Multiband of the invention adapts to RFID chip, can adapt to the reader of various different frequencies, different distance automatically,
It thoroughly solves previous RFID chip and is limited by reading/writing distance, read-write quantity, the limitation of read-write frequency in different application scene
Property, a chip can be compatible with the reader of a variety of different frequency range different distances simultaneously, while be adapted to different frequency, different distance
The read-write terminals such as fixed type reader-writer, hand-held mobile reader, NFC mobile phone, meet comprehensively in intelligent production, intelligent storehouse
The demand for the different applications scenes such as storage, intelligence are sold, intelligent anti-counterfeiting is traced to the source, a core is multi-purpose, makes the data in different application scene
It is able to overall sharing.Application of the invention realizes the production of enterprise, storage, logistics, sale, the anti-fake activity such as trace to the source comprehensive
Intelligent automaticization, it is whole with no paper, without artificial acquisition and the various documents of typing and information, working efficiency is substantially improved, drops
Low cost of labor, reduces human error, and ability is managed in the management of General Promotion enterprise.
A kind of implementation method of multiband adaptive RF ID chip technology, comprising the following steps:
S1. external reader emits pulse signal, multiple spot coupled antenna contact sets mould group to adaptive chip
(Multipoint Antenna Coupler) connects the coupled outside antenna of multiple groups different frequency range, the antenna of corresponding frequency band simultaneously
Carrier signal is obtained, chip interior is passed by the mould group.
S2. multiband coupling channel mould group (Carrier Frequenly Coupler Interface) is according to coupling day
The pulse signal frequency range simultaneous resonance that line transmitting is come in, adaptively opens the channel of corresponding frequency range, by the pulse of the frequency range
Signal passes into the digital mould group of chip.
S3. chip pulse power supply mould group (Energy) is that chip interior each section circuit is powered up.
S4. circuit synchronization mould group provides por signal for chip, and each section circuit synchronization starts work.
S5. clock module (Clock) extracts clock signal required for circuit works normally from carrier signal.
S6. data modulation mould group (Data) by the instruction and data on carrier wave demodulate come, for digital mould group processing and
It is modulated to sent data.
S7. central processing unit mould group (Control&Arithmetic Unit) executes the instruction in carrier signal, carries out
Various operations, storage, data transmission and data encryption.
S8. communication response mould group (ATR_Answer to Request) starts, and foundation is communicated with the first step of reader.
S9. overlapping mould group (AntiCollision) starting is prevented, reader with all chip communications, obtains every first
Then the sequence number of one chip selectes one of chip according to sequence number.
S10. selection confirmation mould group (SelectApplication) of chip confirms the selection to chip.
S11. mould group (Authentication&Access Control) starting is recognized each other in communication, carries out chip and reader
Between be mutually authenticated, operated by being mutually authenticated, and further.
S12. random access memory (RAM) cooperates Control&Arithmetic Unit, operation result is carried out temporary
When store；And as needed, data are stored to E2PROM, or data are taken out, submit radio-frequency interface circuit to be handled, and lead to
The antenna crossed on chip sends reader to.
S13. necessary program instruction required for curing chip is run in read-only memory (ROM).
S14. data encryption mould group (Crypto Unit) starts, the encryption and cryptoguard of complete paired data.
S15. band electrically erasable programmable memory interface mould group (E2PROM Interface) starts, and connects E2PROM and connects
Mouth circuit.
S16. band electrically erasable programmable read-only memory (E2PROM Memory) starts, and updates and stores this communication
Correlated results and data.
[Detailed description of the invention]
Fig. 1 is a kind of multiband adaptive chip structural schematic diagram of the present invention；
Fig. 2 is a kind of adaptive chip work flow diagram of the present invention；
Fig. 3 is an embodiment of the present invention applied to industrial intelligent whole process topological diagram；
Fig. 4 is the work flow diagram applied to production link of an embodiment of the present invention；
Fig. 5 is the work flow diagram applied to logistic storage link of an embodiment of the present invention；
Fig. 6 is the mobile terminal of an embodiment of the present invention and the work flow diagram of adaptive chip；
Fig. 7 is an embodiment of the present invention applied to the anti-fake work flow diagram traced to the source；
[specific embodiment]
The following further describes in detail the preferred embodiments of the invention.
As shown in figure 3, the implementation of this example is: building one includes production, storage, sale, anti-fake multiple rings such as trace to the source
The industrial products intelligent Application system of section.The read-write equipment to match is arranged in each link, and each product installs additional adaptive
RFID chip.
In production link, using the fixed read-write equipment of 930MHz hyperfrequency.Among production line, an orientation is set and is read
It writes a little, reads every product information of process.After being packaged into case, it is associated with case mark, and a batch orientation FCL read-write is set
Point reads the information of all products in each case, carries out verification of data and saves to data center.
It is long long away from hand-held shifting away from fixed read-write equipment+930MHz hyperfrequency using 930MHz hyperfrequency in storage link
Dynamic formula read-write equipment.Frequently go out the transshipment center of storage in high-volume, with 930MHz hyperfrequency it is long away from fixed read-write equipment and
Antenna sets constitute warehouse and go out to be put in storage induction zone, when cargo passes through induction zone, obtain the adaptive chip letter in every product automatically
Breath, automatically generates out and is put in storage end, and automatically up to data center is passed, whole process is with no paper, goes out to be put in storage document without manual entry.Going out
Storage acts less small storage place, and long away from hand-held mobile read-write equipment using 930MHz hyperfrequency, scanning need to go out storage
Cargo obtains the adaptive chip information in every product automatically, automatically generates out and be put in storage end, automatically up to pass data center,
It is whole with no paper, go out to be put in storage document without manual entry.
In sales section, using 930MHz hyperfrequency short distance hand-held mobile read-write equipment.In brand shop, chain-supermarket etc.
Commercial networks scan the product information in adaptive chip using the handheld reader of connection POS machine, and it is clear to automatically generate sale
Single, cash register clearing, printing receipt, automatically record the information such as commercial networks title, GPS positioning, POS terminal number, cashier, from
It moves up to biography data center.
In anti-fake link of tracing to the source, using 13.56MHz high frequency Android mobile phone+13.56MHz high frequency iPhone.Consumer makes
With the mobile phone with NFC, scan the adaptive chip in product, verify the true and false of product, trace the place of production of product, manufacturer,
Name of an article model specification, advantage bright spot, the production time, shelf-life validity period, goes out storage information, sales information, logistics at product characteristic
Information, product picture concerned or video, examination and test of products inspection report, inlet and outlet customs information etc..Adaptive core of the invention
Piece can adapt to Android mobile phone and iPhone simultaneously.
The correlated characteristic and parameter setting of the present embodiment adaptive chip are as follows:
1, adaptive EPC Gen2 and ISO/IEC18000-6C standard
Working frequency: 860MHz-960MHz
Memory: 448 bit non-volatile memories
EPC capacity: 128
The memory block User capacity: 128
TID digit: 64 unique TID (non-rewritable)
Pre-programmed ID digit: 64 bit sequence numbers
Dynamic authentication: anti-chip clones forgery technology
Reading/writing distance: within the scope of 10M
Operating temperature: -50~+85 DEG C
SR sensibility: -18.5dBm
IS inhibits interference signal: -4dB
RP equivalent inpnt parallel resistance At:-18.5dBm input power 1500Ohms
CP equivalent inpnt shunt capacitance At:-18.5dBm input power 0.85pF
Dret data save: 30 years
The erasable indegree of Pcycl: 100,000 times
2, adaptive IS O/ICE 144443A/B standard
Working frequency: 13.56MHz
Traffic rate: 106KB baud rate
Reading/writing distance: within the scope of 100mm (related with antenna pattern)
No battery: passive and wireless mode transmits data
Memory module: being stored using EEPROM, is preserved sequence code, is read password, identification information
Sequence code length: 32
Storage region: 16 sectors, every sector are divided into 4 data blocks, 16 bytes of every data block
Storage region feature: each sector saves one group of reading password and one group of identification information, wherein one group of reading password
A data block is accounted for, 16 bytes are accounted for；One group of identification information accounts for three data blocks, accounts for 48 bytes.
Sector separate keys: every sector all has independent read-write password
The erasable indegree of Pcycl: 100,000 times
3, the Antenna Design of adaptive chip
It, can rectangular, rectangle, circle, oval coiling according to the shape of different product；
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention by
The scope of patent protection that the claims submitted determine.
Claims (8)
1. a kind of adaptive RFID chip of multiband, it is characterised in that it includes multiband coupling module, power supply module, clock mould
Block, data modulate mould group, central processing unit mould group, communication module, random access memory, read-only memory and storage mould
Block；
The multiband coupling module is connected with the coupled outside antenna of different frequency range, and by the external pulse of corresponding frequency range
Signal is passed to chip interior, and the power supply module required energy when providing work to chip, the clock module extracts electric
Clock signal required for road works normally, the data modulation mould group is by the instruction and data demodulation on carrier wave and to pending
The data sent are modulated, and the central processing unit mould group is the control centre of chip, execute operation, storage, data transmission
And data encryption instruction, the communication module are communicated and are mutually authenticated, the random access memory with external reader foundation
Device is temporarily stored operation result, and necessary program required for the read-only memory storage curing chip is run refers to
It enables, the storage module is by encryption of communicated data and permanent storage.
2. the adaptive RFID chip of a kind of multiband according to claim 1, it is characterised in that the multiband coupled mode
Block includes multiple spot coupled antenna contact sets mould group and multiband coupling channel mould group, the multiple spot coupled antenna contact sets mould group pair
The coupled outside antenna that different frequency range should be connected obtains the pulse of corresponding frequency band when the pulse signal of external reader reaches
Signal is simultaneously transferred to multiband coupling channel mould group；The pulse signal frequency that the multiband coupling channel mould group is come according to transmitting
Section simultaneous resonance, adaptively opens the channel of corresponding frequency range, the pulse signal of the frequency range is passed into chip interior.
3. the adaptive RFID chip of a kind of multiband according to claim 1, it is characterised in that the power supply module includes
Chip pulse power supply mould group and circuit synchronization mould group, the chip pulse power supply mould group provide work for chip interior each section circuit
Required energy when making, the circuit synchronization mould group provide por signal for chip, and each section circuit synchronization is made to start work.
4. the adaptive RFID chip of a kind of multiband according to claim 1, it is characterised in that the communication module includes
Mould group is recognized each other in communication response mould group and communication, and the communication response mould group and external reader establish communication after the first step communicates
It recognizes each other mould group and carries out being mutually authenticated between chip and external reader.
5. the adaptive RFID chip of a kind of multiband according to claim 1, it is characterised in that the storage module includes
Data encryption mould group, band electrically erasable programmable memory interface mould group and with electrically erasable programmable read-only memory, it is described
Data are encrypted data encryption mould group and cryptoguard, and band electrically erasable programmable memory interface mould group is connected
Afterwards, the correlated results and data of communication are updated and stored with electrically erasable programmable read-only memory.
6. the adaptive RFID chip of a kind of multiband according to claim 1, it is characterised in that it further includes preventing from being overlapped
Mould group and selection confirmation mould group, when there are two and more than two chip in the working range of external reading and writing device antenna when, each
Chip prevents overlapping mould group starting, external reader and each chip communication, the sequence number of each chip is obtained, according to sequence
One of chip number is selected, and the chip is confirmed using selection confirmation mould group.
7. a kind of application method of the adaptive RFID chip of multiband, it is characterised in that itself the following steps are included:
S1: external reader connects multiple groups different frequency range to chip emission pulse signal, multiple spot coupled antenna contact sets mould group
The antenna of coupled outside antenna, corresponding frequency band obtains pulse signal, passes into chip interior by the mould group；
S2: the pulse signal frequency range simultaneous resonance that multiband coupling channel mould group is come according to transmitting is adaptively opened opposite
The pulse signal of the frequency range is passed into chip interior by the channel for answering frequency range；
S3: chip pulse power supply mould group is that chip interior each section circuit is powered up；
S4: circuit synchronization mould group provides por signal for chip, and each section circuit synchronization starts work；
S5: clock module extracts clock signal required for circuit works normally from pulse signal；
S6: data modulate mould group and demodulate the instruction and data on carrier wave to come, and are modulated to sent data；
S7: central processing unit mould group executes the instruction in carrier signal, carries out various operations, storage, data transmission and number
According to the instruction of encryption；
S8: the starting of communication response mould group, foundation are communicated with the first step of external reader；
S9: the starting of mould group is recognized each other in communication, carries out being mutually authenticated between chip and reader；
S10: random access memory cooperates central processing unit mould group, and operation result is temporarily stored；
S11: the starting of data encryption mould group, the encryption and cryptoguard of complete paired data；
S12: band electrically erasable programmable memory interface mould group starts, and connects band electrically erasable programmable memory interface electricity
Road；
S13: band electrically erasable programmable read-only memory starts, and updates and store the correlated results and data of this communication.
8. a kind of application method of the adaptive RFID chip of multiband according to claim 7, it is characterised in that in step
It further include step S81 after S8,
S81: there are two and if when more than two chips are in the working range of external reading and writing device antenna, each chip prevents weight
Folded mould group starting, external reader and each chip communication, obtain the sequence number of each chip, are selected according to sequence number therein
One chip, and using selection confirmation mould group the chip is confirmed after, carry out step S9 operation.
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| CN201910333530.0A CN109902790B (en) | 2019-04-24 | 2019-04-24 | Multi-band self-adaptive RFID chip and application method thereof |
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| CN201910333530.0A CN109902790B (en) | 2019-04-24 | 2019-04-24 | Multi-band self-adaptive RFID chip and application method thereof |
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| CN109902790B CN109902790B (en) | 2024-05-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413526Y (en) * | 2009-05-27 | 2010-02-24 | 北京汉信码科技有限公司 | Novel radio frequency identification (RFID) chip with different frequencies |
| CN102708387A (en) * | 2012-04-19 | 2012-10-03 | 上海天臣防伪技术股份有限公司 | Multi-band RFID (radio-frequency identification) reader-writer and reading and writing method thereof |
| CN104050501A (en) * | 2014-07-11 | 2014-09-17 | 张福生 | Passive three-frequency multi-interface intelligent card and adaptive work method thereof |
| CN209728779U (en) * | 2019-04-24 | 2019-12-03 | 深圳市润方科技有限公司 | A kind of adaptive RFID chip of multiband |
-
2019
- 2019-04-24 CN CN201910333530.0A patent/CN109902790B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413526Y (en) * | 2009-05-27 | 2010-02-24 | 北京汉信码科技有限公司 | Novel radio frequency identification (RFID) chip with different frequencies |
| CN102708387A (en) * | 2012-04-19 | 2012-10-03 | 上海天臣防伪技术股份有限公司 | Multi-band RFID (radio-frequency identification) reader-writer and reading and writing method thereof |
| CN104050501A (en) * | 2014-07-11 | 2014-09-17 | 张福生 | Passive three-frequency multi-interface intelligent card and adaptive work method thereof |
| CN209728779U (en) * | 2019-04-24 | 2019-12-03 | 深圳市润方科技有限公司 | A kind of adaptive RFID chip of multiband |
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