CN102496048A - Multi-frequency RFID (radio identification) label, read/write device and read/write method - Google Patents
Multi-frequency RFID (radio identification) label, read/write device and read/write method Download PDFInfo
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- CN102496048A CN102496048A CN2011103815918A CN201110381591A CN102496048A CN 102496048 A CN102496048 A CN 102496048A CN 2011103815918 A CN2011103815918 A CN 2011103815918A CN 201110381591 A CN201110381591 A CN 201110381591A CN 102496048 A CN102496048 A CN 102496048A
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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
- G06K19/0723—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 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
- G06K19/0724—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 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs the arrangement being a circuit for communicating at a plurality of frequencies, e.g. for managing time multiplexed communication over at least two antennas of different types
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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
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07777—Antenna details the antenna being of the inductive type
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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
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07786—Antenna details the antenna being of the HF type, such as a dipole
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention relates to a multi-frequency RFID (radio identification) label, a read/write device and a read/write method. The RFID label comprises a first far field antenna and a first near field antenna, wherein the first far field antenna works at reading frequency, and the first near field antenna works at writing frequency; and label reading operation and label writing operation are realized by virtue of reading frequency and writing frequency respectively aiming at the same label content information. By utilizing the characteristics of different frequency bands, the read operation and the write operation are separated on different frequency bands and use the same data storage space, a passive mode is adopted, an external power supply is not required, and anti-metallic function is realized by virtue of an anti-metallic antenna and an encapsulation materials, so that the multi-frequency RFID label is suitable for wide application in the industrial control field.
Description
Technical field
The present invention relates to a kind of passive multifrequency RFID (Radio Frequency IDentification) label, read-write equipment and reading/writing method, be mainly used in industrial control field.
Background technology
The RFID label is in the Industry Control Application field, generally when dispatching from the factory or when carrying out the parts maintenance, need carry out write operation to the label substance of parts; And in using at ordinary times, only need read the RFID label substance; For handling safety with prevent that maloperation from considering, only allow in ten centimetres, just can carry out write operation the label substance of parts; And in practical application because to post the RFID label be the metal surface, simultaneously vehicle in use, owing to reasons such as device installation site can not short distance near, so just have long apart from the demand that reads information.
Traditional RFID label can not satisfy the demand of above-mentioned industrial application, because general RFID only supports a frequency range, the read-write scope is consistent basically.
Multiple-frequency band RFID label and read-write equipment scheme also occur in many application, mainly are the modes that adopts active label.Because active label generally has central control unit CPU to exist, the information content of different frequency range read-writes can be come mutual through CPU; But active label needs externally fed, and limited use if adopt powered battery, can waste energy again, contaminated environment, and serviceable life is limited.
The power supply of passive RFID tags is through far field electromagnetic ripple or near field electromagnetic coupling, and wireless energy is converted into energy of position.Some passive multiband UHF (Ultra High Frequency) and HF (High Frequency) label are also arranged, adopt independently UHF passive label and HF passive label, simplified package together; Because this multifrequency passive label, actual is two labels, and the label memory content can not be shared, and label information can not Real-Time Sharing, so be not the passive multiple-frequency band RFID label of real meaning.
In realizing process of the present invention; The inventor finds to have following problem in the prior art: general RFID label is only supported single frequency band; Existing multifrequency RFID label only is the simplified package of two separate label, can not realize satisfying through a label the different demands of read-write.In addition, common passive label can not use in the metal surface.
Summary of the invention
A kind of multifrequency RFID label; Comprise first far field antenna, first near field antenna; Wherein, first far field antenna works in reading frequency, and first near field antenna works in write frequency; Tag reading operation is directed against identical label substance information with the label write operation, only realizes through reading frequency and write frequency respectively.
This multifrequency RFID label also comprises:
First sending module that is connected with first far field antenna, be used for through first far field antenna receive from the RFID read-write equipment read send label substance information through first far field antenna to the RFID read-write equipment after the label instructions;
First receiver module that is connected with first near field antenna is used for through decoding label substance information to be written after the writing labels instruction of first near field antenna reception from the RFID read-write equipment.
This multifrequency RFID label also comprises:
Logical processing unit is connected with first sending module, first receiver module, is used to carry out label and reads and the label write operation.
This multifrequency RFID label also comprises:
Storage unit is connected with Logical processing unit, is used for the storage tags content information.
Said Logical processing unit is carried out tag reading operation and is specially: send to first sending module from storage unit reading tag content information.
Said Logical processing unit is carried out the label write operation and is specially: the label substance information write storage unit that first receiver module is decoded, and return to write to the RFID read-write equipment through first receiver module and accomplish instruction.
This multifrequency RFID label also comprises:
The electromagnetic energy modular converter is used for the electromagnetic energy that said label obtains is converted into voltage, for said tag-powered.
Said reading frequency is ultrahigh frequency or microwave frequency band.
The said write frequency is high frequency or low frequency frequency range.
Said reading frequency is a plurality of.
The said write frequency is a plurality of.
Said first far field antenna is made up of anti-metal antenna and encapsulating material.
Said anti-metal antenna and encapsulating material are specially: antenna adopts the structure of microstrip antenna, and encapsulating material can be selected ceramic base material, FR4 (glass epoxy resin board) base material, PCB (Print Circuit Board) ceramic base material etc.
Said first near field antenna is made up of anti-wire coil and encapsulating material.
Said encapsulating material is specially: ferrite, suction ripple sponge or artificial magnetic conductor.
A kind of multifrequency RFID read-write equipment; Comprise second far field antenna, second near field antenna; Wherein, second far field antenna works in reading frequency, and second near field antenna works in write frequency; Tag reading operation for same RFID label is directed against identical label substance information with the label write operation, only realizes through reading frequency and write frequency respectively.
This multifrequency RFID read-write equipment also comprises:
Second receiver module that is connected with far field antenna is used for through second far field antenna after label instructions is read in the transmission of RFID label, receiving label substance information through second far field antenna from the RFID label;
Second sending module that is connected with near field antenna is used for sending the writing labels instruction through second near field antenna to the RFID label, comprising label substance information to be written.
This multifrequency RFID read-write equipment also comprises:
CPU is connected with second sending module, second receiver module, is used to accomplish the protocol information that transmits and receive data and handles.
This multifrequency RFID read-write equipment also comprises:
Communication interface is connected with CPU, is used for communicating by letter with host computer.
Said CPU is sent the said label instructions of reading from host computer to second receiver module, and will send to host computer from the label substance information of second receiver module.
Said CPU is sent the said writing labels instruction from host computer to second sending module, and accomplishes instruction through the reception of second sending module from writing of RFID label.
This multifrequency RFID label also comprises:
Memory module is connected with CPU, is used to accomplish the data buffering that transmits and receive data.
This multifrequency RFID read-write equipment also comprises:
The encryption and decryption module is connected with CPU, is used for the RFID label is carried out the encryption and decryption operation.
A kind of reading/writing method of multifrequency RFID label, said label comprise first far field antenna, first near field antenna, and wherein, first far field antenna works in reading frequency, and first near field antenna works in write frequency, and this method is:
In response to reading the instruction of label instructions and writing labels, said label is carried out tag reading operation and label write operation respectively;
Wherein, tag reading operation is directed against identical label substance information with the label write operation, only realizes through reading frequency and write frequency respectively.
In response to reading label instructions; Said label is carried out tag reading operation and is specially: said label through first far field antenna receive from the RFID read-write equipment read label instructions after; Storage unit reading tag content information from said label sends to the RFID read-write equipment.
Instruct in response to writing labels; Said label is carried out the label write operation and is specially: after said label receives the writing labels instruction from the RFID read-write equipment through first near field antenna; Decode label substance information to be written, store in the storage unit of said label.
Said RFID read-write equipment is a multifrequency RFID read-write equipment; Comprise second far field antenna, second near field antenna; Wherein, second far field antenna works in said reading frequency, and second near field antenna works in the said write frequency; Tag reading operation for same RFID label is directed against identical label substance information with the label write operation, only realizes through said reading frequency and said write frequency respectively.
Said RFID read-write equipment receives the said label instructions of reading from host computer, and will send to host computer from the label substance information of said label through second far field antenna.
Said RFID read-write equipment receives the said writing labels instruction from host computer, and accomplishes instruction through the reception of second near field antenna from writing of said label.
Said RFID read-write equipment carries out the encryption and decryption operation to said label.
Passive multiple-frequency band RFID label of the present invention, read-write equipment and reading/writing method read and adopt uhf band far field electromagnetic ripple mode (being not limited to uhf band), write to adopt HF frequency range near field electromagnetic coupling scheme (being not limited to the HF frequency range); And shared same storage unit, read operation is directed against identical label substance information with write operation, adopts passive mode simultaneously; Do not need externally fed; Really accomplish energy-conserving and environment-protective, long service life is fit to industrial control field and is widely used.
Multifrequency label and multifrequency read-write equipment can be used, and can use different ciphers at different frequency range, protect the data security that writes.
Description of drawings
The structural representation of a kind of multifrequency RFID label that Fig. 1 provides for the embodiment of the invention;
The structural representation of a kind of multifrequency RFID read-write equipment that Fig. 2 provides for the embodiment of the invention.
Embodiment
1) multifrequency passive RFID tags
General passive RFID tags is only supported a kind of frequency range; And RFID label of the present invention has utilized the characteristics of different frequency range, with read operation and write operation on the different frequency section separately; And use same data space, read operation is directed against identical label substance information with write operation; Guarantee information write safe in, the information that guaranteed reads the demand of distance.In addition; General passive RFID tags does not have anti-metal function; Label of the present invention is filled and partly adopt anti-metal material to do the back near field antenna because the unique design of antenna and encapsulating material partly adopts anti-metal antenna in far field antenna; Not only can use, more reach the effect of the anti-metal of multifrequency at nonmetallic surface.
Upper frequency such as UHF (but being not limited to uhf band) have the advantage that the distance of reading is grown (several meters); In addition, the label of common antenna and encapsulating material design can not use in the metal surface; The antenna of label of the present invention adopts the design of ceramic base material microstrip line, utilizes the reflection of metal label to signal, improves the tag read ability, reaches the ability of anti-metal.
Lower frequency such as HF frequency range (but being not limited to the HF frequency range) have the distance write only ten centimetres with interior characteristics, can carry out monomer identification read-write to label, safe reliability is excellent.Label of the present invention adopts absorbing material package design such as ferrite in this frequency, reach the ability of anti-metal.Label of the present invention mainly divides several sections: first far field antenna [101], first sending module [102], first near field antenna [103], first receiver module [104], electromagnetic energy modular converter [105], Logical processing unit [106], storage unit [107].
First far field antenna [101], major function are to accomplish the transmission of label signal, work in reading frequency; Reading frequency is the ultrahigh frequency frequency range, but is not limited to the ultrahigh frequency frequency range, other frequency range such as 2.4G; 5.8G microwave frequency band theoretically, also can be realized through far field antenna.This antenna can adopt common far field antenna, is used for common application scenario; This antenna also can be made up of anti-metal antenna and encapsulating material; Antenna adopts the structure of microstrip antenna, and encapsulating material can be selected ceramic base material, FR4 (glass epoxy resin board) base material; PCB (Print Circuit Board) ceramic base materials etc., label can use in the metal surface like this.Anti-metal antenna and encapsulating material metal surface capable of using increases reading/writing distance as the reflecting surface of oneself.Domestic many metal surfaces label antenna all is on traditional dipole antenna basis, reduces the influence of metallic reflection in the face of label through the distance that increases label antenna and metal label.Though this method has improved the distance that reads of label, volume and the cost of whole label are increased, the bandwidth of antenna reduces, and the inborn performance of label to be far from being used for the performance of nonmetallic surface good.The design's far field antenna part is utilized the high dielectric constant of ceramic dielectric based on the microstrip antenna usefulness of ceramic dielectric, and it is very little that antenna volume can be accomplished, and utilize the metal surface as oneself bigger reflecting surface, makes that the performance of antenna is very stable.Simultaneously, anti-metal far field antenna also can be used for nonmetallic surface, covers the application scenarios of normal far-field antenna.
First sending module [102]; Major function is to obtain the read signal carrier wave that read-write equipment sends; And will pass through the label information (having accomplished upper layer communication protocol processes and instruction manipulation, the standard compliant ISO18000-6C EPC of this Logical processing unit G2 agreement and instruction manipulation) that Logical processing unit sends over, carry out carrier modulation etc. behind the coding; Radio open communication protocol is handled, and sends to read-write equipment then.
First near field antenna [103] is used to accomplish the reception of label signal, works in write frequency, and write frequency is a high-frequency band, but is not limited to high-frequency band, like low frequency LF frequency range, 125KHz.This near field antenna can adopt common near field antenna, is used for common application scenario; Use for being fit to the metal surface, this Antenna Design is made up of anti-wire coil and encapsulating material, and encapsulating material need possess microwave absorbing property, does not receive the influence of metal to guarantee EM coupling, and encapsulating material can be selected ferrite, inhales the ripple sponge, artificial magnetic conductor etc.Simultaneously, anti-metal near field antenna also can be used for nonmetallic surface, covers the application scenarios of common near field antenna.
First receiver module [104], major function are to accomplish the signal that receives read-write equipment and carry out the demodulation sign indicating number, receive the functions such as radio open communication protocol processing of signal.
Electromagnetic energy modular converter [105] is converted into voltage with its electromagnetic energy that obtains, for said tag-powered.For example,, when write frequency is the HF frequency range, when read operation, convert the UHF radio frequency electromagnetic into energy, to tag-powered, to accomplish the UHF read operation when reading frequency is a uhf band; When write operation, convert the HF signal into energy through pickup coil, for tag-powered, to accomplish the write operation of HF.
Logical processing unit [106], major function are to accomplish label instructions operation, tag read cipher control, the information processing functions such as Storage Unit Management.
Storage unit [107], major function are to carry out the storage of label substance information, and the functions such as storage of the unique cognizance code of label.
The reading frequency of this multifrequency RFID label can be for a plurality of, and write frequency can be for a plurality of.
Multifrequency RFID electronic tag shown in Figure 1 cooperates the data flow of RFID read-write equipment reading tag content information following:
Step 1: label instructions is read in read-write equipment setting and transmission, is converted into electromagnetic signal, and sends to electronic tag.
Step 2: electronic tag is through far field antenna [101], and ultrahigh frequency sending module [102] and electromagnetic energy modular converter [105] are converted into voltage with the electromagnetic energy that electronic tag obtains, and supply power to electronic tag; Simultaneously, the electromagnetic signal that electronic tag is received is converted into the digital signal of RFID communication format.
Step 3: electronic tag is decoded to the label instructions of reading that obtains through ultrahigh frequency sending module [102], and reads label instructions through Logical processing unit [106] execution, the information in the reading cells [107].
Step 4: electronic tag passes through logical operation through Logical processing unit [106] with the storage unit that reads [107] internal information, passes to surpass first sending module [102].
Step 5: electronic tag carries out carrier modulation and stack with the electronic tag content information that obtains, and sends to read-write equipment through first far field antenna [101] through first sending module [102].
It is following that multifrequency RFID label shown in Figure 1 cooperates the RFID read-write equipment to write the data flow of label substance information:
Step 1: the read-write equipment setting is also sent the writing labels instruction, wherein comprises label substance information to be written, is converted into electromagnetic signal, and sends to label.
Step 2: label is through first near field antenna [103], and first receiver module [104] and electromagnetic energy modular converter [105] are converted into voltage with the electromagnetic energy that label obtains, and gives tag-powered; Simultaneously, the electromagnetic signal that label is received is converted into the digital signal of RFID communication format.
Step 3: label is decoded to the writing labels instruction that obtains through first receiver module [104], and carries out the writing labels instruction through Logical processing unit [106], writes information to storage unit [107].
Step 4: label will write and accomplish instruction through Logical processing unit [106], pass to first receiver module [104].
Step 5: label will write and accomplish instruction through first receiver module [104], be back to read-write equipment through first near field antenna [103].
2) multifrequency RFID read-write equipment
Multifrequency RFID read-write equipment is in conjunction with the advantage of UHF and HF (but being not restricted to UHF and HF frequency range) different frequency.Major function is that the RFID label is carried out read-write operation, accomplishes simultaneously the data in the wireless air transmission course are carried out coded communication.
The double frequency read-write equipment is made up of several parts: second far field antenna [201], second receiver module [202], second near field antenna [203]; Second sending module [204], CPU [205], memory module [206]; Encryption and 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 the ultrahigh frequency frequency range, is not restricted to uhf band, other frequency range such as 2.4G, and the 5.8G microwave frequency band theoretically, also can be realized through far field antenna.The major function of this antenna is to receive the signal (like the UHF radiofrequency signal) that label sends, and gives second receiver module with signal.
Second receiver module [202], major function are the signals that receives second far field antenna, carry out down coversion, and signal is carried out rectification, and decoding, and give CPU.
Second near field antenna [203] is operated in write frequency and carries out write operation, and reading frequency is the ultrahigh frequency frequency range, is not restricted to the HF frequency range, like low frequency LF frequency range, 125KHz.The major function of this antenna is that the signal that second sending module produces is sent.
Second sending module [204], major function are the data to be sent that central processing unit for processing is good, carry out signal encoding and modulation, are passed to second near field antenna.
CPU [205], major function are to accomplish the protocol information transmit and receive data to handle, and and storage unit, carry out the conversion and the transmission of data layout between the communication interface.
Memory module [206], major function are to accomplish the data buffering that transmits and receive data, and the functions such as data storage of central processing module and communication interface.
Encryption and decryption module [207], major function are that different labels is carried out the encryption and decryption operation in the wireless transmission process.Reader itself is only safeguarded a password; (algorithm in the design mainly contained for two steps at present through the algorithm conversion; The first step is that TID and original code are carried out the Hash computing, and second step encrypted the result that the Hash computing obtains), different labels is continued different encrypted and decryption oprerations.
Communication interface [208], major function are to intercom mutually with miscellaneous equipment such as host computer, and interface type can be an Ethernet interface, USB, RS232, RS485 or the like.
The reading frequency of this multifrequency RFID read-write equipment can be for a plurality of, and write frequency can be for a plurality of.
Multifrequency RFID label and multifrequency RFID read-write equipment can be used.
Multifrequency RFID read-write equipment as shown in Figure 2 is from the data flow of RFID read tag content information:
Step 1: read-write equipment receives the reading tag instruction that host computer sends, and will instruct through CPU [205] through communication interface [208], is converted into and reads the label communication format information.
Step 2: read-write equipment is through encryption and decryption module [207]; The read write tag communication format provided read tag pin; And, carry out uhf band carrier modulation and coding, and electromagnetic signal is sent to label through second far field antenna [201] through second receiver module [202].
Step 3: label is through the read operation flow process, and the carrier modulation superposed signal of label substance information is returned to read-write equipment.
Step 4: read-write equipment receives signal through second far field antenna [201]; And through second receiver module [202]; Carry out carrier wave demodulation and decoding; The label substance information via CPU of obtaining [205] is communicated protocol processes, and the label substance information of acquisition is placed on memory module [206].
Step 5: read-write equipment after CPU [205] processing, returns to communication interface [208] with the label substance information of memory module [206], accomplishes and reads tag operational.
Multifrequency RFID read-write equipment as shown in Figure 2 writes the data flow of label substance information to the RFID label:
Step 1: read-write equipment receives the writing labels instruction that host computer sends through communication interface [208], wherein comprises label substance information to be written, and will instruct and pass through CPU.
Step 2: read-write equipment provides the writing labels password to the read write tag communication format through encryption and decryption module [207], and through second sending module [204], modulates and encodes, and through second near field antenna [203] signal is sent to label.
Step 3: label returns to read-write equipment through the write operation flow process with writing the modulation signal of accomplishing instruction.
Step 4: read-write equipment receives signal through second near field antenna [203], and through second sending module [204], carries out the demodulation sign indicating number, and the completion instruction that writes that obtains is communicated protocol processes through CPU [205].
Step 5: the completion that writes that read-write equipment will pass through after the CPU [205] is instructed, and returns to communication interface [208], accomplishes the writing labels operation.
The above; Be merely embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technician who is familiar with the present technique field is equal to replacement or change according to technical scheme of the present invention and inventive concept in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.
Claims (44)
1. multifrequency RFID label is characterized in that:
Said label comprises first far field antenna, first near field antenna; Wherein, First far field antenna works in reading frequency; First near field antenna works in write frequency, and tag reading operation is directed against identical label substance information with the label write operation, only realizes through reading frequency and write frequency respectively.
2. multifrequency RFID label as claimed in claim 1 is characterized in that, also comprises:
First sending module that is connected with first far field antenna, be used for through first far field antenna receive from the RFID read-write equipment read send label substance information through first far field antenna to the RFID read-write equipment after the label instructions;
First receiver module that is connected with first near field antenna is used for through decoding label substance information to be written after the writing labels instruction of first near field antenna reception from the RFID read-write equipment.
3. multifrequency RFID label as claimed in claim 2 is characterized in that, also comprises:
Logical processing unit is connected with first sending module, first receiver module, is used to carry out label and reads and the label write operation.
4. multifrequency RFID label as claimed in claim 3 is characterized in that, also comprises:
Storage unit is connected with Logical processing unit, is used for the storage tags content information.
5. multifrequency RFID label as claimed in claim 4 is characterized in that,
Said Logical processing unit is carried out tag reading operation and is specially: send to first sending module from storage unit reading tag content information.
6. multifrequency RFID label as claimed in claim 4 is characterized in that,
Said Logical processing unit is carried out the label write operation and is specially: the label substance information write storage unit that first receiver module is decoded, and return to write to the RFID read-write equipment through first receiver module and accomplish instruction.
7. multifrequency RFID label as claimed in claim 2 is characterized in that, also comprises:
The electromagnetic energy modular converter is used for the electromagnetic energy that said label obtains is converted into voltage, for said tag-powered.
8. multifrequency RFID label as claimed in claim 1 is characterized in that,
Said reading frequency is ultrahigh frequency or microwave frequency band.
9. multifrequency RFID label as claimed in claim 1 is characterized in that,
The said write frequency is high frequency or low frequency frequency range.
10. multifrequency RFID label as claimed in claim 1 is characterized in that,
Said reading frequency is a plurality of.
11. multifrequency RFID label as claimed in claim 1 is characterized in that,
The said write frequency is a plurality of.
12. multifrequency RFID label as claimed in claim 1 is characterized in that,
Said first far field antenna is made up of anti-metal antenna and encapsulating material.
13. multifrequency RFID label as claimed in claim 12 is characterized in that,
Said anti-metal antenna and encapsulating material are specially: antenna adopts the structure of microstrip antenna, and encapsulating material is ceramic base material or FR4 (glass epoxy resin board) base material.
14. multifrequency RFID label as claimed in claim 1 is characterized in that,
Said first near field antenna is made up of anti-wire coil and encapsulating material.
15. multifrequency RFID label as claimed in claim 14 is characterized in that,
Said encapsulating material is specially: ferrite, suction ripple sponge or artificial magnetic conductor.
16. a multifrequency RFID read-write equipment is characterized in that,
Said read-write equipment comprises second far field antenna, second near field antenna; Wherein, Second far field antenna works in reading frequency; Second near field antenna works in write frequency,, only realizes through reading frequency and write frequency respectively to identical label substance information for the tag reading operation of same RFID label and label write operation.
17. multifrequency RFID read-write equipment as claimed in claim 16 is characterized in that, also comprises:
Second receiver module that is connected with far field antenna is used for through second far field antenna after label instructions is read in the transmission of RFID label, receiving label substance information through second far field antenna from the RFID label;
Second sending module that is connected with near field antenna is used for sending the writing labels instruction through second near field antenna to the RFID label, comprising label substance information to be written.
18. multifrequency RFID read-write equipment as claimed in claim 17 is characterized in that, also comprises:
CPU is connected with second sending module, second receiver module, is used to accomplish the protocol information that transmits and receive data and handles.
19. multifrequency RFID read-write equipment as claimed in claim 18 is characterized in that, also comprises:
Communication interface is connected with CPU, is used for communicating by letter with host computer.
20. multifrequency RFID read-write equipment as claimed in claim 19 is characterized in that,
Said CPU is sent the said label instructions of reading from host computer to second receiver module, and will send to host computer from the label substance information of second receiver module.
21. multifrequency RFID read-write equipment as claimed in claim 19 is characterized in that,
Said CPU is sent the said writing labels instruction from host computer to second sending module, and accomplishes instruction through the reception of second sending module from writing of RFID label.
22. multifrequency RFID label as claimed in claim 18 is characterized in that, also comprises:
Memory module is connected with CPU, is used to accomplish the data buffering that transmits and receive data.
23. multifrequency RFID read-write equipment as claimed in claim 18 is characterized in that, also comprises:
The encryption and decryption module is connected with CPU, is used for the RFID label is carried out the encryption and decryption operation.
24. multifrequency RFID read-write equipment as claimed in claim 16 is characterized in that,
Said reading frequency is ultrahigh frequency or microwave frequency band.
25. multifrequency RFID read-write equipment as claimed in claim 16 is characterized in that,
The said write frequency is high frequency or low frequency frequency range.
26. multifrequency RFID read-write equipment as claimed in claim 16 is characterized in that,
Said reading frequency is a plurality of.
27. multifrequency RFID read-write equipment as claimed in claim 16 is characterized in that,
The said write frequency is a plurality of.
28. a multifrequency RFID read-write system is characterized in that, comprises like the described multifrequency RFID label of claim 1-15 with like the described multifrequency RFID read-write equipment of claim 16-27.
29. the reading/writing method of a multifrequency RFID label, said label comprise first far field antenna, first near field antenna, wherein, first far field antenna works in reading frequency, and first near field antenna works in write frequency, it is characterized in that,
In response to reading the instruction of label instructions and writing labels, said label is carried out tag reading operation and label write operation respectively;
Wherein, tag reading operation is directed against identical label substance information with the label write operation, only realizes through reading frequency and write frequency respectively.
30. method as claimed in claim 29 is characterized in that,
In response to reading label instructions; Said label is carried out tag reading operation and is specially: said label through first far field antenna receive from the RFID read-write equipment read label instructions after; Storage unit reading tag content information from said label sends to the RFID read-write equipment.
31. method as claimed in claim 29 is characterized in that,
Instruct in response to writing labels; Said label is carried out the label write operation and is specially: after said label receives the writing labels instruction from the RFID read-write equipment through first near field antenna; Decode label substance information to be written, store in the storage unit of said label.
32. method as claimed in claim 29 is characterized in that, further comprises:
Said label is converted into voltage with the electromagnetic energy that it obtains, for said tag-powered.
33. method as claimed in claim 29 is characterized in that,
Said first far field antenna is made up of anti-metal antenna and encapsulating material.
34. method as claimed in claim 33 is characterized in that,
Said anti-metal antenna and encapsulating material are specially: antenna adopts the structure of microstrip antenna, and encapsulating material is ceramic base material or FR4 (glass epoxy resin board) base material.
35. method as claimed in claim 29 is characterized in that,
Said first near field antenna is made up of anti-wire coil and encapsulating material.
36. method as claimed in claim 35 is characterized in that,
Said encapsulating material is specially: ferrite, suction ripple sponge or artificial magnetic conductor.
37. like claim 30 or 31 described methods, it is characterized in that,
Said RFID read-write equipment is a multifrequency RFID read-write equipment; Comprise second far field antenna, second near field antenna; Wherein, second far field antenna works in said reading frequency, and second near field antenna works in the said write frequency; Tag reading operation for same RFID label is directed against identical label substance information with the label write operation, only realizes through said reading frequency and said write frequency respectively.
38. method as claimed in claim 37 is characterized in that, further comprises:
Said RFID read-write equipment receives the said label instructions of reading from host computer, and will send to host computer from the label substance information of said label through second far field antenna.
39. method as claimed in claim 37 is characterized in that, further comprises:
Said RFID read-write equipment receives the said writing labels instruction from host computer, and accomplishes instruction through the reception of second near field antenna from writing of said label.
40. method as claimed in claim 37 is characterized in that, further comprises:
Said RFID read-write equipment carries out the encryption and decryption operation to said label.
41. like claim 29 or 37 described methods, it is characterized in that,
Said reading frequency is ultrahigh frequency or microwave frequency band.
42. like claim 29 or 37 described methods, it is characterized in that,
The said write frequency is high frequency or low frequency frequency range.
43. like claim 29 or 37 described methods, it is characterized in that,
Said reading frequency is a plurality of.
44. like claim 29 or 37 described methods, it is characterized in that,
The said write frequency is a plurality of.
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 true CN102496048A (en) | 2012-06-13 |
| CN102496048B CN102496048B (en) | 2016-12-14 |
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| CN110632887A (en) * | 2019-09-04 | 2019-12-31 | 一汽解放汽车有限公司 | Multi-frequency mixed wireless data read-write transmission device for heavy diesel engine machining production line |
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