CN102496048B - A kind of multifrequency RFID label tag, read-write equipment and reading/writing method - Google Patents
A kind of multifrequency RFID label tag, read-write equipment and reading/writing method Download PDFInfo
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- CN102496048B CN102496048B CN201110381591.8A CN201110381591A CN102496048B CN 102496048 B CN102496048 B CN 102496048B CN 201110381591 A CN201110381591 A CN 201110381591A CN 102496048 B CN102496048 B CN 102496048B
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- 239000000126 substance Substances 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 37
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- 238000004891 communication Methods 0.000 claims description 21
- 239000000919 ceramic Substances 0.000 claims description 9
- 229910000529 magnetic ferrite Inorganic materials 0.000 claims description 5
- 229910000859 α-Fe Inorganic materials 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 230000003139 buffering Effects 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 230000006399 behavior Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 4
- 238000000034 method Methods 0.000 description 10
- 230000000051 modifying Effects 0.000 description 7
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- 238000006243 chemical reaction Methods 0.000 description 4
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- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
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- 238000005381 potential energy Methods 0.000 description 1
Abstract
The present invention relates to a kind of multifrequency RFID label tag, read-write equipment and reading/writing method, this RFID label tag includes the first far field antenna, the first near field antenna, wherein, first far field antenna works in reading frequency, first near field antenna works in write frequency, tag reading operation, is the most only realized by reading frequency and write frequency for identical label substance information with label writing operation.Present invention utilizes the feature of different frequency range, read operation and write operation are separated on different frequency bands, and use same data space, use passive mode simultaneously, need not externally fed, achieve the function of anti-metal also by anti-metal antenna and encapsulating material, applicable industrial control field is widely used.
Description
Technical field
The present invention relates to a kind of passive multifrequency RFID(Radio Frequency IDentification) label, read-write dress
Put and reading/writing method, be mainly used in industrial control field.
Background technology
RFID label tag, in Industry Control Application field, typically when dispatching from the factory or when carrying out parts maintenance, needs zero
The label substance of part carries out write operation；And in every day use, it is only necessary to read RFID label tag content；In order to operate safety and prevent
Only maloperation considers, within only allowing ten centimetres, just the label substance of parts can be carried out write operation；And apply in reality
In, it is metal surface owing to posting RFID label tag, vehicle is in use simultaneously, owing to the reasons such as device installation site can not
Short distance is close, thus has distance to read the demand of information.
Traditional RFID label tag can not meet the demand of above-mentioned industrial application, because general RFID only supports a frequency
Section, read-write scope is substantially consistent.
Multiple-frequency band RFID label and read-write equipment scheme also occur in many application, mainly use the side of active label
Formula.Due to active label typically with the presence of central control unit CPU, the information content of different frequency range read-writes can pass through CPU
Come mutual；But active label needs externally fed, apply limited, power according to battery, the energy can be wasted again, pollute ring
Border, and service life is limited.
The power supply of passive RFID tags, is to be coupled by far field electromagnetic ripple or near field electromagnetic, wireless energy is converted into electricity
Potential energy.Also have some passive multiband UHF(Ultra High Frequency) and HF(High Frequency) label, use
Independent UHF passive label and HF passive label, simplified package is together；Due to this multifrequency passive label, really two
Label, tag memory content can not share, label information can not Real-Time Sharing, so being not the passive many of real meaning
Band RFID label.
During realizing the present invention, inventor finds that in prior art, there are the following problems: general RFID label tag
Only support that single frequency band, existing multifrequency RFID label tag are only the simplified package of two separate label, it is impossible to realize by one
Label meets the different demands of read-write.It addition, common passive label can not use in metal surface.
Summary of the invention
A kind of multifrequency RFID label tag, including the first far field antenna, the first near field antenna, wherein, the first far field antenna work
In reading frequency, the first near field antenna works in write frequency, tag reading operation and label writing operation for identical mark
Sign content information, the most only realized by reading frequency and write frequency.
This multifrequency RFID label tag also includes:
The first sending module being connected with the first far field antenna, for receiving from RFID read-write by the first far field antenna
Label substance information is sent by the first far field antenna to RFID read-write device after the reading label instructions of device；
The first receiver module being connected with the first near field antenna, for receiving from RFID read-write by the first near field antenna
Device write label instructions after decode label substance information to be written.
This multifrequency RFID label tag also includes:
Logical processing unit, is connected with the first sending module, the first receiver module, is used for performing tag reader and label is write
Enter operation.
This multifrequency RFID label tag also includes:
Memory element, is connected with Logical processing unit, is used for storing label substance information.
Described Logical processing unit performs tag reading operation particularly as follows: read label substance information from memory element and send
To the first sending module.
Described Logical processing unit performs label writing operation particularly as follows: the label substance that decoded by the first receiver module
Information write storage unit, and complete instruction by the first receiver module to the return write of RFID read-write device.
This multifrequency RFID label tag also includes:
Electromagnetic energy modular converter, for the electromagnetic energy that described label obtains is converted into voltage, supplies for described label
Electricity.
Described reading frequency is hyperfrequency or microwave frequency band.
Said write frequency is high frequency or low frequency frequency range.
Described reading frequency is multiple.
Said write frequency is multiple.
Described first far field antenna is made up of anti-metal antenna and encapsulating material.
Described anti-metal antenna and encapsulating material are particularly as follows: antenna uses the structure of microstrip antenna, and encapsulating material may select
Ceramic base material, FR4(glass epoxy resin board) base material, PCB(Print Circuit Board) ceramic base material etc..
Described first near field antenna is made up of anti-metal coil and encapsulating material.
Described encapsulating material is particularly as follows: ferrite, suction ripple sponge or artificial magnetic conductor.
A kind of multifrequency RFID read-write device, including the second far field antenna, the second near field antenna, wherein, the second far field antenna
Working in reading frequency, the second near field antenna works in write frequency, for tag reading operation and the mark of same RFID label tag
Label write operation, for identical label substance information, is the most only realized by reading frequency and write frequency.
This multifrequency RFID read-write device also includes:
The second receiver module being connected with far field antenna, for sending reading label by the second far field antenna to RFID label tag
After instruction, by the second far field antenna from RFID tag label substance information；
The second sending module being connected with near field antenna, for writing label by the second near field antenna to RFID label tag transmission
Instruction, including label substance information to be written.
This multifrequency RFID read-write device also includes:
CPU, is connected with the second sending module, the second receiver module, has been used for sending and receiving data
Protocol information processes.
This multifrequency RFID read-write device also includes:
Communication interface, is connected with CPU, is used for and host computer communication.
Described CPU sends from the described reading label instructions of host computer to the second receiver module, and will be from
The label substance information of the second receiver module is sent to host computer.
Described CPU sends from writing label instructions described in host computer to the second sending module, and by the
The write that two sending modules receive from RFID label tag completes instruction.
This multifrequency RFID label tag also includes:
Memory module, is connected with CPU, has been used for sending and receiving the data buffering of data.
This multifrequency RFID read-write device also includes:
Encryption/decryption module, is connected with CPU, for RFID label tag is carried out encryption and decryption operation.
A kind of reading/writing method of multifrequency RFID label tag, described label includes the first far field antenna, the first near field antenna, its
In, the first far field antenna works in reading frequency, and the first near field antenna works in write frequency, and the method is:
Respectively responsive to reading label instructions and writing label instructions, described label performs tag reading operation and label write behaviour
Make；
Wherein, tag reading operation, is the most only passed through to read for identical label substance information with label writing operation
Frequency and write frequency realize.
In response to reading label instructions, described label performs tag reading operation particularly as follows: described label is by the first far field
Antenna receives after the reading label instructions of RFID read-write device, reads label substance letter from the memory element of described label
Breath, is sent to RFID read-write device.
In response to writing label instructions, described label performs label writing operation particularly as follows: described label is by the first near field
Antenna receive from RFID read-write device write label instructions after, decode label substance information to be written, storage to institute
State in the memory element of label.
Described RFID read-write device is multifrequency RFID read-write device, including the second far field antenna, the second near field antenna, its
In, the second far field antenna works in described reading frequency, and the second near field antenna works in said write frequency, for same RFID
The tag reading operation of label for identical label substance information, the most only passes through described reading frequency with label writing operation
Realize with said write frequency.
Described RFID read-write device receives the described reading label instructions from host computer, and passes through the second far field antenna in the future
It is sent to host computer from the label substance information of described label.
Described RFID read-write device receives from writing label instructions described in host computer, and is received by the second near field antenna
Write from described label completes instruction.
Described RFID read-write device carries out encryption and decryption operation to described label.
Passive multiple-frequency band RFID label, read-write equipment and the reading/writing method of the present invention, reads and uses uhf band far field electromagnetic
Ripple mode (is not limited to uhf band), and write uses HF frequency range near field electromagnetic coupled modes (being not limited to HF frequency range), and is total to
Use same memory element, read operation and write operation for identical label substance information, use passive mode simultaneously, it is not necessary to
Externally fed, is truly realized energy-conserving and environment-protective, and service life is long, and applicable industrial control field is widely used.
Multifrequency label and multifrequency read-write equipment can be with the use of, can use different passwords at different frequency range, protect
Protect the Information Security of write.
Accompanying drawing explanation
The structural representation of a kind of multifrequency RFID label tag that Fig. 1 provides for the embodiment of the present invention；
The structural representation of a kind of multifrequency RFID read-write device that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
1) multifrequency passive RFID tags
General passive RFID tags only supports a kind of frequency range, and the RFID label tag of the present invention, make use of different frequency range
Feature, separates read operation and write operation in different frequency section, and uses same data space, read operation and write operation
For identical label substance information；While guarantee information write safety, it is ensured that information reads the demand of distance.This
Outward, general passive RFID tags does not has anti-metal function, and the label of the present invention is due to antenna and the uniqueness of encapsulating material
Design, uses anti-metal antenna in far field antenna part, and uses anti-metal material to do back near field antenna part and fill, no
Only can use at nonmetallic surface, more reach the effect of multifrequency anti-metal.
Upper frequency such as UHF (but being not limited to uhf band) has the advantage reading distance longer (several meters)；It addition, generally
Antenna and encapsulating material design label can not use in metal surface；The antenna of label of the present invention uses ceramic base material micro-strip
Line designs, and utilizes the metal label reflection to signal, improves tag read ability, reaches the ability of anti-metal.
Lower frequency such as HF frequency range (but being not limited to HF frequency range) has the advantages that to write within only ten centimetres, can be to label
Carrying out monomer identification read-write, security reliability is excellent.Label of the present invention uses the absorbing material encapsulation such as ferrite to set in this frequency
Meter, reaches the ability of anti-metal.Label of the present invention mainly divides several part: the first far field antenna [101], the first sending module
[102], the first near field antenna [103], the first receiver module [104], electromagnetic energy modular converter [105], Logical processing unit
[106], memory element [107].
First far field antenna [101], major function has been the transmission of label signal, works in reading frequency, reads frequency
Rate is ultra-high frequency band, but is not limited to ultra-high frequency band, other frequency range such as 2.4G, and 5.8G microwave frequency band comes theoretically
Say, it is also possible to realized by far field antenna.This antenna can use common far field antenna, for common application scenario；
This antenna can also be made up of anti-metal antenna and encapsulating material, and antenna uses the structure of microstrip antenna, and encapsulating material may select
Ceramic base material, FR4(glass epoxy resin board) base material, PCB(Print Circuit Board) ceramic base material etc., such label
Can use in metal surface.Anti-metal antenna and encapsulating material may utilize the metal surface reflecting surface as oneself, increase read-write
Distance.Domestic many metal surfaces label antenna, is all on the basis of traditional dipole antenna, by increase label antenna with
The distance of metal label reduces metallic reflection in the face of the impact of label.Although this method improves the reading distance of label,
But the volume of whole label and cost can be made to increase, and the bandwidth of antenna reduces, and the inborn performance of label is far from for non-
The performance of metal surface is good.The design far field antenna is based partially on the microstrip antenna use of ceramic dielectric, utilizes the height of ceramic dielectric
Dielectric constant, enables the volume of antenna to accomplish the least, and utilizes metal surface as oneself bigger reflecting surface so that sky
The performance of line is sufficiently stable.Meanwhile, anti-metal far field antenna can be used for nonmetallic surface, covers answering of normal far-field antenna
Use scene.
First sending module [102], major function is to obtain the read signal carrier wave that read-write equipment sends, and will be through logic
(having completed upper layer communication protocol processes and command operating, this Logical processing unit accords with the label information that processing unit sends over
The ISO18000-6C EPC G2 agreement of standardization and command operating), carry out carrier modulation etc., radio open communication protocols after coding
View processes, and is then sent to read-write equipment.
First near field antenna [103], has been used for the reception of label signal, works in write frequency, and write frequency is high
Again and again section, but it is not limited to high-frequency band, such as low frequency LF frequency range, 125KHz.This near field antenna can use common near field
Antenna, for common application scenario；Applying for applicable metal surface, this Antenna Design is by anti-metal coil and encapsulating material group
Becoming, encapsulating material need to possess microwave absorbing property, and to ensure that electromagnetic coupled is not affected by metal, encapsulating material may select ferrite,
Inhale ripple sponge, artificial magnetic conductor etc..Meanwhile, anti-metal near field antenna can be used for nonmetallic surface, covers sky, common near field
The application scenarios of line.
First receiver module [104], major function has been to receive the signal of read-write equipment and demodulate and decode, and connects
The functions such as the radio open communication protocol process of the collection of letters number.
Electromagnetic energy modular converter [105], the electromagnetic energy obtained is converted into voltage, for described tag-powered.Example
As, when reading frequency is uhf band, and write frequency is HF frequency range, when read operation, UHF radio frequency electromagnetic is converted to energy
Amount, to tag-powered, to complete UHF read operation；When write operation, HF signal is converted to energy by coupling coil, for mark
Sign power supply, to complete the write operation of HF.
Logical processing unit [106], major function has been label instructions operation, and tag read cipher control, storage is single
The information processing functions such as unit's management.
Memory element [107], major function is by the storage of label substance information, and the depositing of label unique identification code
The functions such as storage.
The reading frequency of this multifrequency RFID label tag can be multiple, and write frequency can be multiple.
Multifrequency RFID shown in Fig. 1 coordinates RFID read-write device to read the data flow of label substance information such as
Under:
Step one: read-write equipment arranges and send reading label instructions, is converted into electromagnetic signal, and is sent to electronic tag.
Step 2: electronic tag passes through far field antenna [101], hyperfrequency sending module [102] and electromagnetic energy conversion
The electromagnetic energy that electronic tag obtains is converted into voltage, to electronic label with power by module [105];Meanwhile, electronic tag is connect
The electromagnetic signal received is converted into the digital signal of RFID communication form.
Step 3: the reading label instructions obtained is decoded by electronic tag by hyperfrequency sending module [102], and leads to
Cross Logical processing unit [106] to perform to read label instructions, read the information in memory element [107].
Step 4: electronic tag passes through Logical processing unit [106], passes through memory element [107] internal information read
Logical operations, passes to surpass the first sending module [102].
Step 5: electronic tag passes through the first sending module [102], and the electronic tag content information of acquisition is carried out carrier wave
Modulation and superposition, and it is sent to read-write equipment by the first far field antenna [101].
The data flow of the multifrequency RFID label tag cooperation RFID read-write device write label substance information shown in Fig. 1 is as follows:
Step one: read-write equipment arranges and sends writes label instructions, wherein comprises label substance information to be written, converts
For electromagnetic signal, and it is sent to label.
Step 2: label passes through the first near field antenna [103], the first receiver module [104] and electromagnetic energy modulus of conversion
The electromagnetic energy that label obtains is converted into voltage by block [105], to tag-powered；Meanwhile, the electromagnetic signal that label receives is turned
Turn to the digital signal of RFID communication form.
Step 3: acquisition is write label instructions by the first receiver module [104] and is decoded by label, and passes through logic
Processing unit [106] performs to write label instructions, writes information to memory element [107].
Step 4: label passes through Logical processing unit [106], completes write instruction, passes to the first receiver module
[104]。
Step 5: label passes through the first receiver module [104], completes instruction, by the first near field antenna [103] by write
It is back to read-write equipment.
2) multifrequency RFID read-write device
Multifrequency RFID read-write device, in conjunction with UHF and HF(but be not restricted to UHF and HF frequency range) advantage of different frequency.
Major function is that RFID label tag is written and read operation, completes to be encrypted logical to the data in wireless air transmitting procedure simultaneously
Letter.
Double frequency read-write equipment is made up of several parts: the second far field antenna [201], the second receiver module [202], the second near field
Antenna [203], the second sending module [204], CPU [205], memory module [206], encryption/decryption module [207],
Communication interface [208].
Second far field antenna [201], is operated in reading frequency and carries out read operation, and reading frequency is ultra-high frequency band, not
It is limited to uhf band, other frequency range such as 2.4G, 5.8G microwave frequency band, from theory, it is also possible to come real by far field antenna
Existing.The major function of this antenna is to receive the signal (such as UHF radiofrequency signal) that label sends, and signal is given the second reception mould
Block.
Second receiver module [202], major function is to receive the signal of the second far field antenna, carries out down coversion, to signal
It is demodulated system, and decoding, and gives CPU.
Second near field antenna [203], is operated in write frequency and carries out write operation, and reading frequency is ultra-high frequency band, not
It is limited to HF frequency range, such as low frequency LF frequency range, 125KHz.The major function of this antenna is to be entered by the signal that the second sending module produces
Row sends.
Second sending module [204], major function is by data to be sent good for central processing unit for processing, carries out signal
Coding and modulation, be transferred to the second near field antenna.
CPU [205], major function has been that the protocol information sending and receiving data processes, and and storage
Unit, carries out conversion and the transmission of data form between communication interface.
Memory module [206], major function has been to send and receive the data buffering of data, and central processing module
The functions such as the data storage with communication interface.
Encryption/decryption module [207], major function is that different labels is carried out during being wirelessly transferred encryption and decryption operation.
Reader itself only maintains a password, through algorithm conversion (at present the algorithm in design mainly has two steps, the first step be by
TID and original code carry out Hash computing, and the result that Hash computing is obtained by second step is encrypted), different labels is continued
Different encrypt and decrypt operations.
Communication interface [208], major function is can be in communication with each other with miscellaneous equipment such as host computer, and interface type can
To be Ethernet interface, USB, RS232, RS485 etc..
The reading frequency of this multifrequency RFID read-write device can be multiple, and write frequency can be multiple.
Multifrequency RFID label tag and multifrequency RFID read-write device can be with the use of.
Multifrequency RFID read-write device as shown in Figure 2 is from the data flow of RFID label tag reading label substance information:
Step one: read-write equipment passes through communication interface [208], receives the reading label instructions that host computer sends, and will refer to
Order, by CPU [205], is converted into reading label communication format information.
Step 2: read-write equipment passes through encryption/decryption module [207], provides read write tag communication format and reads tag pin,
And by the second receiver module [202], carry out uhf band carrier modulation and coding, and by the second far field antenna [201] by electricity
Magnetic signal is sent to label.
Step 3: label passes through read operation flow process, returns to read-write by the carrier modulation superposed signal of label substance information
Device.
Step 4: read-write equipment receives signal by the second far field antenna [201], and by the second receiver module [202],
Carry out carrier wave demodulation and decoding, the label substance information obtained communicated protocol processes through CPU [205],
The label substance information obtained is placed on memory module [206].
Step 5: read-write equipment is by the label substance information of memory module [206], through CPU [205] place
After reason, return to communication interface [208], complete to read tag operational.
Multifrequency RFID read-write device as shown in Figure 2 is to the data flow of RFID label tag write label substance information:
Step one: read-write equipment passes through communication interface [208], what reception host computer sent writes label instructions, wherein comprises
Label substance information to be written, and CPU is passed through in instruction.
Step 2: read write tag communication format, through encryption/decryption module [207], is provided and writes tag pin by read-write equipment,
And by the second sending module [204], be modulated and encode, and send a signal to mark by the second near field antenna [203]
Sign.
Step 3: label passes through write operation flow process, the modulated signal that write completes instruction returns to read-write equipment.
Step 4: read-write equipment receives signal by the second near field antenna [203], and by the second sending module [204],
It is demodulated and decodes, the write of acquisition being completed instruction and communicates protocol processes through CPU [205].
Step 5: the write after CPU [205] is completed instruction by read-write equipment, returns to communication interface
[208], complete to write tag operational.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art is in the technical scope that the invention discloses, according to technical scheme and invention structure
Think equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (48)
1. a multifrequency RFID label tag, it is characterised in that: described label includes the first far field antenna, the first near field antenna, its
In, the first far field antenna works in reading frequency, and the first near field antenna works in write frequency, tag reading operation and label and writes
Enter to operate for identical label substance information, the most only realized by reading frequency and write frequency.
2. multifrequency RFID label tag as claimed in claim 1, it is characterised in that also include:
The first sending module being connected with the first far field antenna, for receiving from RFID read-write device by the first far field antenna
Reading label instructions after by the first far field antenna to RFID read-write device send label substance information；
The first receiver module being connected with the first near field antenna, for receiving from RFID read-write device by the first near field antenna
Write label instructions after decode label substance information to be written.
3. multifrequency RFID label tag as claimed in claim 2, it is characterised in that also include:
Logical processing unit, is connected with the first sending module, the first receiver module, is used for performing tag reader and label write behaviour
Make.
4. multifrequency RFID label tag as claimed in claim 3, it is characterised in that also include:
Memory element, is connected with Logical processing unit, is used for storing label substance information.
5. multifrequency RFID label tag as claimed in claim 4, it is characterised in that:
Described Logical processing unit performs tag reading operation particularly as follows: read label substance information from memory element to be sent to the
One sending module.
6. multifrequency RFID label tag as claimed in claim 4, it is characterised in that
Described Logical processing unit performs label writing operation particularly as follows: the label substance information that decoded by the first receiver module
Write storage unit, and complete instruction by the first receiver module to the return write of RFID read-write device.
7. multifrequency RFID label tag as claimed in claim 2, it is characterised in that also include:
Electromagnetic energy modular converter, for being converted into voltage by the electromagnetic energy that described label obtains, for described tag-powered.
8. multifrequency RFID label tag as claimed in claim 1, it is characterised in that: described reading frequency is hyperfrequency or Microwave Frequency
Section.
9. multifrequency RFID label tag as claimed in claim 1, it is characterised in that: said write frequency is high frequency or low frequency frequency range.
10. multifrequency RFID label tag as claimed in claim 1, it is characterised in that: described reading frequency is multiple.
11. multifrequency RFID label tag as claimed in claim 1, it is characterised in that: said write frequency is multiple.
12. multifrequency RFID label tag as claimed in claim 1, it is characterised in that: described first far field antenna is by anti-metal antenna
And encapsulating material composition.
13. multifrequency RFID label tag as claimed in claim 12, it is characterised in that
Described anti-metal antenna and encapsulating material are particularly as follows: antenna uses the structure of microstrip antenna, and encapsulating material is ceramic base material
Or FR4(glass epoxy resin board) base material.
14. multifrequency RFID label tag as claimed in claim 1, it is characterised in that: described first near field antenna is by anti-metal coil
And encapsulating material composition.
15. multifrequency RFID label tag as claimed in claim 14, it is characterised in that
Described encapsulating material is particularly as follows: ferrite, suction ripple sponge or artificial magnetic conductor.
16. 1 kinds of multifrequency RFID read-write devices, it is characterised in that: described read-write equipment includes the second far field antenna, the second near field
Antenna, wherein, the second far field antenna works in reading frequency, and the second near field antenna works in write frequency, for same RFID
The tag reading operation of label for identical label substance information with label writing operation, is the most only passed through reading frequency and writes
Enter frequency to realize.
17. multifrequency RFID read-write devices as claimed in claim 16, it is characterised in that also include:
The second receiver module being connected with far field antenna, for sending reading label instructions by the second far field antenna to RFID label tag
After, by the second far field antenna from RFID tag label substance information；
The second sending module being connected with near field antenna, refers to for writing label by the second near field antenna to RFID label tag transmission
Order, including label substance information to be written.
18. multifrequency RFID read-write devices as claimed in claim 17, it is characterised in that also include:
CPU, is connected with the second sending module, the second receiver module, has been used for sending and receiving the agreement of data
Information processing.
19. multifrequency RFID read-write devices as claimed in claim 18, it is characterised in that also include:
Communication interface, is connected with CPU, is used for and host computer communication.
20. multifrequency RFID read-write devices as claimed in claim 19, it is characterised in that: described CPU connects to second
Receive module and send the described reading label instructions from host computer, and the label substance information from the second receiver module is sent to
Host computer.
21. multifrequency RFID read-write devices as claimed in claim 19, it is characterised in that: described CPU is to second
Send module to send from writing label instructions described in host computer, and receive the write from RFID label tag by the second sending module
Complete instruction.
22. multifrequency RFID read-write devices as claimed in claim 18, it is characterised in that also include:
Memory module, is connected with CPU, has been used for sending and receiving the data buffering of data.
23. multifrequency RFID read-write devices as claimed in claim 18, it is characterised in that also include:
Encryption/decryption module, is connected with CPU, for RFID label tag is carried out encryption and decryption operation.
24. multifrequency RFID read-write devices as claimed in claim 16, it is characterised in that: described reading frequency is hyperfrequency or micro-
Ripple frequency range.
25. multifrequency RFID read-write devices as claimed in claim 16, it is characterised in that: said write frequency is high frequency or low frequency
Frequency range.
26. multifrequency RFID read-write devices as claimed in claim 16, it is characterised in that: described reading frequency is multiple.
27. multifrequency RFID read-write devices as claimed in claim 16, it is characterised in that: said write frequency is multiple.
28. 1 kinds of multifrequency RFID read-write systems, it is characterised in that: include the multifrequency as described in any one in claim 1-15
RFID label tag and the multifrequency RFID read-write device as described in any one in claim 16-27.
The reading/writing method of 29. 1 kinds of multifrequency RFID label tag, described label includes the first far field antenna, the first near field antenna, wherein,
First far field antenna works in reading frequency, and the first near field antenna works in write frequency, it is characterised in that:
Respectively responsive to reading label instructions and writing label instructions, described label performs tag reading operation and label writing operation；
Wherein, tag reading operation for identical label substance information, the most only passes through reading frequency with label writing operation
Realize with write frequency.
30. methods as claimed in claim 29, it is characterised in that
In response to reading label instructions, described label performs tag reading operation particularly as follows: described label is by the first far field antenna
Receive after the reading label instructions of RFID read-write device, read label substance information from the memory element of described label, send out
Give RFID read-write device.
31. methods as claimed in claim 29, it is characterised in that
In response to writing label instructions, described label performs label writing operation particularly as follows: described label is by the first near field antenna
Receive from RFID read-write device write label instructions after, decode label substance information to be written, storage to described mark
In the memory element signed.
32. methods as claimed in claim 29, it is characterised in that farther include: the electromagnetic energy that described label is obtained
Amount is converted into voltage, for described tag-powered.
33. methods as claimed in claim 29, it is characterised in that: described first far field antenna is by anti-metal antenna and encapsulation material
Material composition.
34. methods as claimed in claim 33, it is characterised in that
Described anti-metal antenna and encapsulating material are particularly as follows: antenna uses the structure of microstrip antenna, and encapsulating material is ceramic base material
Or FR4(glass epoxy resin board) base material.
35. methods as claimed in claim 29, it is characterised in that: described first near field antenna is by anti-metal coil and encapsulation material
Material composition.
36. methods as claimed in claim 35, it is characterised in that
Described encapsulating material is particularly as follows: ferrite, suction ripple sponge or artificial magnetic conductor.
37. methods as described in claim 30 or 31, it is characterised in that:
Described RFID read-write device is multifrequency RFID read-write device, including the second far field antenna, the second near field antenna, wherein, the
Two far field antenna work in described reading frequency, and the second near field antenna works in said write frequency, for same RFID label tag
Tag reading operation and label writing operation for identical label substance information, the most only by described reading frequency and institute
State write frequency to realize.
38. methods as claimed in claim 37, it is characterised in that farther include:
Described RFID read-write device receives the described reading label instructions from host computer, and will be from institute by the second far field antenna
The label substance information stating label is sent to host computer.
39. methods as claimed in claim 37, it is characterised in that farther include:
Described RFID read-write device receive from writing label instructions described in host computer, and by second near field antenna receive from
The write of described label completes instruction.
40. methods as claimed in claim 37, it is characterised in that farther include:
Described RFID read-write device carries out encryption and decryption operation to described label.
41. methods as claimed in claim 29, it is characterised in that: described reading frequency is hyperfrequency or microwave frequency band.
42. methods as claimed in claim 37, it is characterised in that: described reading frequency is hyperfrequency or microwave frequency band.
43. methods as claimed in claim 29, it is characterised in that: said write frequency is high frequency or low frequency frequency range.
44. methods as claimed in claim 37, it is characterised in that: said write frequency is high frequency or low frequency frequency range.
45. methods as claimed in claim 29, it is characterised in that: described reading frequency is multiple.
46. methods as claimed in claim 37, it is characterised in that: described reading frequency is multiple.
47. methods as claimed in claim 29, it is characterised in that: said write frequency is multiple.
48. methods as claimed in claim 37, it is characterised in that: said write frequency is multiple.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110381591.8A CN102496048B (en) | 2011-11-28 | A kind of multifrequency RFID label tag, read-write equipment and reading/writing method | |
| PCT/CN2012/085488 WO2013079002A1 (en) | 2011-11-28 | 2012-11-28 | Multi-frequency rfid tag, read and write device, and read and write method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110381591.8A CN102496048B (en) | 2011-11-28 | A kind of multifrequency RFID label tag, read-write equipment and reading/writing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102496048A CN102496048A (en) | 2012-06-13 |
| CN102496048B true CN102496048B (en) | 2016-12-14 |
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ID=
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| US7316352B1 (en) * | 2004-12-23 | 2008-01-08 | Storage Technology Corporation | System and method for locked code on a radio frequency identification tag |
| CN101385039A (en) * | 2006-03-15 | 2009-03-11 | 株式会社半导体能源研究所 | Semiconductor device |
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| CN1741029A (en) * | 2004-08-26 | 2006-03-01 | 富士通株式会社 | Wireless tag system, wireless identification tag and access control apparatus thereof, method and program |
| US7316352B1 (en) * | 2004-12-23 | 2008-01-08 | Storage Technology Corporation | System and method for locked code on a radio frequency identification tag |
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