CN109711515A - A kind of double frequency intelligent RFID tag chip and electronic tag - Google Patents
A kind of double frequency intelligent RFID tag chip and electronic tag Download PDFInfo
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Abstract
The present invention relates to a kind of double frequency intelligent RFID tag chip and electronic tags, RFID label chip includes front end induction module, matching module, Voltage stabilizing module, protocol integrated test system module and memory module, front end induction module includes the RF front-end module of two kinds of different frequency ranges, one of RF front-end module is directly electrically connected with Voltage stabilizing module, another RF front-end module is electrically connected by matching module with Voltage stabilizing module, and Voltage stabilizing module is electrically connected by protocol logic module with memory module；RF front-end module is used to obtain energy from reader radiation field, forms voltage；Matching module is for keeping the voltage on two kinds of RF front-end modules distinct；Voltage stabilizing module is used for the voltage pressure stabilizing on two kinds of RF front-end modules, to export voltage of voltage regulation；Protocol logic module is used for for different activation voltage, using different protocol access memory modules.The present invention controls the agreement of low frequency, high frequency or hyperfrequency, conflict when avoiding multi-protocols while accessing by voltage.
Description
Technical field
The present invention and field of radio frequency identification, and in particular to a kind of double frequency intelligent RFID tag chip and electronic tag.
Background technique
In RFID field of radio frequency identification, according to the height of carrier frequency, low frequency, high frequency or hyperfrequency can be divided into, and
Use different communications protocol.Wherein, most wide for the high frequency identification technology use of 13.56MHz with working frequency, for paying class
The identification of data exchange and short-range single item.Typical case includes: electronic ticket, electronic ID card, stored value card, door
Prohibit etc., relevant standard has: ISO14443, ISO15693, ISO18000-3 (13.56MHz) etc..With 860Mhz-930Mhz's
Super high frequency radio frequency identification technology is exactly the opposite, is mainly used for the identification of articles multiple over long distances, relevant criterion is ISO18000-6.
With enriching constantly for RFID technique application scenarios, single frequency band is no longer satisfied the demand of data acquisition and automatic identification,
Need multiple frequency range combination deployment.In order to make full use of the characteristic of two kinds of frequency tags, most variations are a high frequency marking
It signs chip and a low frequency frequency or ultrahigh frequency electronic tag chip packing on one substrate, still needs to respectively in two label chips
Interior write-in data and reading, it is very inconvenient；A small number of schemes are realized with dual-band chip and shared memory, although having reached double frequency
Effect, but it is fault-tolerant poor, such as: being read when high-frequency work, and using hyperfrequency, double frequency interferes between each other；And it is common
Same memory is accessed, is read while write, it may appear that memory logical miss；Each frequency range front-end controlling circuit is independent, leads to chip circuit
Complexity increases chip cost.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of double frequency intelligent RFID tag chip and electronic tag, it will be high
Frequency and UHF chips storage share, reach the information sharing of high frequency and hyperfrequency, avoid two labels write respectively data and
The difficulty matched, while chip internal model number of blocks is reduced, reduce label cost.High-frequency/ultrahigh frequency/low frequency is controlled by operating voltage
Agreement, conflict when avoiding multi-protocols while accessing, technical scheme is as follows:
As the first aspect of the present invention, a kind of double frequency intelligent RFID tag chip, the RFID label chip packet are provided
Front end induction module, matching module, protocol integrated test system module and memory module are included, the front end induction module includes two kinds of different frequencies
The RF front-end module of section, one of RF front-end module are electrically connected with protocol integrated test system module, another RF front-end module
It is electrically connected by matching module with protocol integrated test system module, the protocol logic module is electrically connected with memory module；
The RF front-end module when for close to reader, obtains energy from reader radiation field, forms voltage；
The voltage that the matching module is used in such a way that impedance is adjusted change RF front-end module connected to it is big
Small, making the size of the voltage on the RF front-end module of two kinds of different frequency ranges, there are certain differences；
The protocol logic module supports agreement corresponding with the RF front-end module of two kinds of different frequency ranges, for different
Input voltage, using different protocol access memory modules.
Further, the RFID label chip further includes Voltage stabilizing module, and one of RF front-end module passes through described
Voltage stabilizing module is electrically connected with the protocol integrated test system module；Another RF front-end module is electrically connected by matching module and Voltage stabilizing module
It connects, then is electrically connected by the Voltage stabilizing module with protocol integrated test system module；The Voltage stabilizing module is for penetrating two kinds of different frequency ranges
Voltage on frequency front-end module carries out pressure stabilizing, forms voltage of voltage regulation, and the voltage of voltage regulation is transferred to protocol integrated test system module.
Further, the front end induction module includes high-frequency radio frequency front-end module and super high frequency radio frequency front-end module, institute
It states super high frequency radio frequency front-end module and is electrically connected with Voltage stabilizing module by matching module, the high-frequency radio frequency front-end module is directly and surely
Die block electrical connection, the protocol logic module support high frequency agreement and hyperfrequency agreement.
Further, the front end induction module includes high-frequency radio frequency front-end module and super high frequency radio frequency front-end module, institute
It states high-frequency radio frequency front-end module and is electrically connected with Voltage stabilizing module by matching module, the super high frequency radio frequency front-end module is directly and surely
Die block electrical connection, the protocol logic module support high frequency agreement and hyperfrequency agreement.
Further, the front end induction module includes low frequency radio frequency front-end module and high-frequency radio frequency front-end module, described
High-frequency radio frequency front-end module is electrically connected by matching module with Voltage stabilizing module, the low frequency radio frequency front-end module directly with pressure stabilizing mould
Block electrical connection, the protocol logic module support high frequency agreement and low-frequency protocols.
Further, the front end induction module includes low frequency radio frequency front-end module and high-frequency radio frequency front-end module, described
Low frequency radio frequency front-end module is electrically connected by matching module with Voltage stabilizing module, the high-frequency radio frequency front-end module directly with pressure stabilizing mould
Block electrical connection, the protocol logic module support high frequency agreement and low-frequency protocols.
Further, the front end induction module includes low frequency radio frequency front-end module and super high frequency radio frequency front-end module, institute
It states low frequency radio frequency front-end module and is electrically connected with Voltage stabilizing module by matching module, the super high frequency radio frequency front-end module is directly and surely
Die block electrical connection, the protocol logic module support hyperfrequency agreement and low-frequency protocols.
Further, the front end induction module includes low frequency radio frequency front-end module and super high frequency radio frequency front-end module, institute
It states super high frequency radio frequency front-end module and is electrically connected with Voltage stabilizing module by matching module, the low frequency radio frequency front-end module is directly and surely
Die block electrical connection, the protocol logic module support hyperfrequency agreement and low-frequency protocols.
As a second aspect of the invention, a kind of RFID electronic label, the label that the RFID electronic label uses are provided
Chip is the RFID label chip as described in any one of the above.
Beneficial effects of the present invention:
1. conventional tags need to label two on the same article, and need to be written two groups of data, and backstage into
The match management of two labels of row, double frequency intelligent RFID tag chip of the invention manage corresponding agreement by voltage difference,
Save individual agreement judgment step, compared with existing dual-frequency label, decision logic is more succinct, can lack a logic judgment mould
Block reduces chip cost, improves the efficiency of write-in label data, it is only necessary to which unique identification note can be completed in a data write-in
Record and data input；When two groups of antennas work, circuit in parallel is still that relatively high voltage is active, and is only kept
The protocol pass when voltage value, when avoiding two groups of antennas while feeding, protocol logic processing is chaotic, also avoids two groups of agreement numbers
Lead to compatible sexual abnormality according to storage information is rewritten simultaneously.
Detailed description of the invention
Fig. 1 is a kind of circuit connection diagram of double frequency intelligent RFID tag chip provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only present invention a part, instead of all the embodiments.Based on the present invention
In embodiment, all other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Double frequency intelligent RFID tag chip provided by the invention includes front end induction module, matching module, Voltage stabilizing module, association
It discusses control module and memory module, the front end induction module includes the RF front-end module of two kinds of different frequency ranges, one of them
RF front-end module is directly electrically connected with Voltage stabilizing module, another RF front-end module is electrically connected by matching module and Voltage stabilizing module
It connects, the Voltage stabilizing module is electrically connected by protocol logic module with memory module.
The RF front-end module when for close to reader, obtains energy from reader radiation field, forms voltage.
The voltage that the matching module is used in such a way that impedance is adjusted change RF front-end module connected to it is big
Small, making the size of the voltage on the RF front-end module of two kinds of different frequency ranges, there are certain differences.
The Voltage stabilizing module is used to carry out pressure stabilizing to the voltage on the RF front-end module of two kinds of different frequency ranges, forms pressure stabilizing
Voltage, and the voltage of voltage regulation is transferred to protocol integrated test system module, to activated protocol control module.
The protocol logic module supports agreement corresponding with the RF front-end module of two kinds of different frequency ranges, such as supports
The high frequencies agreements such as ISO14443, ISO15693, ISO18000-3 (13.56MHz) also support ISO18000-6 hyperfrequency to assist simultaneously
View, for different input voltages, using different protocol access memory modules.
Wherein, the RF front-end module is RFID label antenna.
Preferably, the front end induction module includes high-frequency radio frequency front-end module and super high frequency radio frequency front-end module, described
Super high frequency radio frequency front-end module is electrically connected by matching module with Voltage stabilizing module, and the high-frequency radio frequency front-end module is directly and pressure stabilizing
Module electrical connection, the protocol logic module support high frequency agreement and hyperfrequency agreement.
Preferably, the front end induction module includes high-frequency radio frequency front-end module and super high frequency radio frequency front-end module, described
High-frequency radio frequency front-end module is electrically connected by matching module with Voltage stabilizing module, and the super high frequency radio frequency front-end module is directly and pressure stabilizing
Module electrical connection, the protocol logic module support high frequency agreement and hyperfrequency agreement.
Preferably, the front end induction module includes low frequency radio frequency front-end module and high-frequency radio frequency front-end module, the height
Frequency RF front-end module is electrically connected by matching module with Voltage stabilizing module, and the low frequency radio frequency front-end module is directly and Voltage stabilizing module
Electrical connection, the protocol logic module support high frequency agreement and low-frequency protocols.
Preferably, the front end induction module includes low frequency radio frequency front-end module and high-frequency radio frequency front-end module, described low
Frequency RF front-end module is electrically connected by matching module with Voltage stabilizing module, and the high-frequency radio frequency front-end module is directly and Voltage stabilizing module
Electrical connection, the protocol logic module support high frequency agreement and low-frequency protocols.
Preferably, the front end induction module includes low frequency radio frequency front-end module and super high frequency radio frequency front-end module, described
Low frequency radio frequency front-end module is electrically connected by matching module with Voltage stabilizing module, and the super high frequency radio frequency front-end module is directly and pressure stabilizing
Module electrical connection, the protocol logic module support hyperfrequency agreement and low-frequency protocols.
Preferably, the front end induction module includes low frequency radio frequency front-end module and super high frequency radio frequency front-end module, described
Super high frequency radio frequency front-end module is electrically connected by matching module with Voltage stabilizing module, and the low frequency radio frequency front-end module is directly and pressure stabilizing
Module electrical connection, the protocol logic module support hyperfrequency agreement and low-frequency protocols.
In above-described embodiment, when corresponding RF front-end module is close to reader, energy can be obtained from reader radiation field
Amount, distance is closer, and energy is stronger, and when only distance is close enough, the energy being coupled to can be only achieved power reguirements, to activate association
Discuss control module.By taking high frequency as an example, such as when 4cm, the energy being coupled to just is converted into 3V voltage enough, and activated protocol controls mould
Block.
As shown in Figure 1, being the double frequency intelligence label RFID mark that working frequency provided in an embodiment of the present invention is high frequency and hyperfrequency
Chip is signed, illustrates the working principle of the invention by taking the RFID label chip as an example below:
The RFID label chip includes high-frequency radio frequency front end mould and super high frequency radio frequency front-end module, wherein before super high frequency radio frequency
End module is electrically connected by matching module with Voltage stabilizing module, when the energy coupled on only high-frequency radio frequency front-end module reaches power supply
It is required that when, Voltage stabilizing module carries out pressure stabilizing to the voltage of high-frequency radio frequency front-end module, forms voltage of voltage regulation A, and give with voltage of voltage regulation A
Protocol logic module for power supply, activated protocol logic module；When the energy coupled on only super high frequency radio frequency front-end module reaches confession
When electricity requires, impedance adjusting and Voltage stabilizing module is carried out by matching module, the voltage of super high frequency radio frequency front-end module is carried out surely
Pressure forms voltage of voltage regulation B, and gives protocol logic module for power supply, activated protocol logic module with voltage of voltage regulation B；To protocol logic
Module progress is presetting, and when with voltage of voltage regulation A activation, protocol logic module is with high frequency protocol access memory module, when with steady
When piezoelectricity presses B activation, protocol logic module is with hyperfrequency protocol access memory module；When high-frequency radio frequency front-end module and hyperfrequency
When the energy coupled on RF front-end module all reaches power reguirements, voltage of voltage regulation A and pressure stabilizing electricity are formed on Voltage stabilizing module at this time
Press B, since voltage of voltage regulation A and voltage of voltage regulation B is two parallel voltage signals, so when with voltage of voltage regulation A and voltage of voltage regulation B
In using higher voltage as the supply voltage of protocol logic module；Such as voltage of voltage regulation A be 5V, voltage of voltage regulation B be 3V, then with
Supply voltage of the 5V voltage of voltage of voltage regulation A as protocol logic module, protocol logic module store mould with high frequency protocol access
Block.
As another aspect of the present invention, a kind of RFID electronic label, the label that the RFID electronic label uses are provided
Chip is the RFID label chip as described in any one of the above.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of double frequency intelligent RFID tag chip, which is characterized in that the RFID label chip include front end induction module,
With module, protocol integrated test system module and memory module, the front end induction module includes the RF front-end module of two kinds of different frequency ranges,
One of RF front-end module is electrically connected with protocol integrated test system module, another RF front-end module passes through matching module and agreement
Control module electrical connection, the protocol logic module are electrically connected with memory module；
The RF front-end module when for close to reader, obtains energy from reader radiation field, forms voltage；
The matching module is used in such a way that impedance is adjusted change the voltage swing of RF front-end module connected to it, makes
There are certain differences for the size of voltage on the RF front-end module of two kinds of different frequency ranges；
The protocol logic module supports agreement corresponding with the RF front-end module of two kinds of different frequency ranges, for different inputs
Voltage, using different protocol access memory modules.
2. double frequency intelligent RFID tag chip according to claim 1, which is characterized in that the RFID label chip is also wrapped
Voltage stabilizing module is included, one of RF front-end module is electrically connected by the Voltage stabilizing module with the protocol integrated test system module；It is another
A RF front-end module is electrically connected by matching module with Voltage stabilizing module, then passes through the Voltage stabilizing module and protocol integrated test system module electricity
Connection；The Voltage stabilizing module is used to carry out pressure stabilizing to the voltage on the RF front-end module of two kinds of different frequency ranges, forms pressure stabilizing electricity
Pressure, and the voltage of voltage regulation is transferred to protocol integrated test system module.
3. double frequency intelligent RFID tag chip according to claim 2, which is characterized in that the front end induction module includes
High-frequency radio frequency front-end module and super high frequency radio frequency front-end module, the super high frequency radio frequency front-end module pass through matching module and pressure stabilizing
Module electrical connection, the high-frequency radio frequency front-end module are directly electrically connected with Voltage stabilizing module, and the protocol logic module supports high frequency
Agreement and hyperfrequency agreement.
4. double frequency intelligent RFID tag chip according to claim 2, which is characterized in that the front end induction module includes
High-frequency radio frequency front-end module and super high frequency radio frequency front-end module, the high-frequency radio frequency front-end module pass through matching module and pressure stabilizing mould
Block electrical connection, the super high frequency radio frequency front-end module are directly electrically connected with Voltage stabilizing module, and the protocol logic module supports high frequency
Agreement and hyperfrequency agreement.
5. double frequency intelligent RFID tag chip according to claim 2, which is characterized in that the front end induction module includes
Low frequency radio frequency front-end module and high-frequency radio frequency front-end module, the high-frequency radio frequency front-end module pass through matching module and Voltage stabilizing module
Electrical connection, the low frequency radio frequency front-end module are directly electrically connected with Voltage stabilizing module, and the protocol logic module supports high frequency agreement
And low-frequency protocols.
6. double frequency intelligent RFID tag chip according to claim 2, which is characterized in that the front end induction module includes
Low frequency radio frequency front-end module and high-frequency radio frequency front-end module, the low frequency radio frequency front-end module pass through matching module and Voltage stabilizing module
Electrical connection, the high-frequency radio frequency front-end module are directly electrically connected with Voltage stabilizing module, and the protocol logic module supports high frequency agreement
And low-frequency protocols.
7. double frequency intelligent RFID tag chip according to claim 2, which is characterized in that the front end induction module includes
Low frequency radio frequency front-end module and super high frequency radio frequency front-end module, the low frequency radio frequency front-end module pass through matching module and pressure stabilizing mould
Block electrical connection, the super high frequency radio frequency front-end module are directly electrically connected with Voltage stabilizing module, and the protocol logic module supports superelevation
Frequency agreement and low-frequency protocols.
8. double frequency intelligent RFID tag chip according to claim 2, which is characterized in that the front end induction module includes
Low frequency radio frequency front-end module and super high frequency radio frequency front-end module, the super high frequency radio frequency front-end module pass through matching module and pressure stabilizing
Module electrical connection, the low frequency radio frequency front-end module are directly electrically connected with Voltage stabilizing module, and the protocol logic module supports superelevation
Frequency agreement and low-frequency protocols.
9. a kind of RFID electronic label, which is characterized in that the label chip that the RFID electronic label uses is such as claim
Label chip described in 1-8 any one.
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| CN111260006A (en) * | 2020-01-17 | 2020-06-09 | 上海双十信息科技有限公司 | Self-service check-in luggage consignment system and method based on dual-frequency RFID |
| CN115561622A (en) * | 2022-10-14 | 2023-01-03 | 安测半导体技术(江苏)有限公司 | Method and system for writing unique ID in chip test |
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Application publication date: 20190503 |