CN202110567U - Ultrahigh-frequency RFID (Radio Frequency Identification) reader-writer and corresponding mobile terminal - Google Patents
Ultrahigh-frequency RFID (Radio Frequency Identification) reader-writer and corresponding mobile terminal Download PDFInfo
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- CN202110567U CN202110567U CN2010206946993U CN201020694699U CN202110567U CN 202110567 U CN202110567 U CN 202110567U CN 2010206946993 U CN2010206946993 U CN 2010206946993U CN 201020694699 U CN201020694699 U CN 201020694699U CN 202110567 U CN202110567 U CN 202110567U
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- portable terminal
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Abstract
The utility model is applicable to the field of RFID (Radio Frequency Identification) devices, and provides an ultrahigh-frequency RFID reader-writer and a corresponding mobile terminal. In the embodiment of the utility model, the ultrahigh-frequency RFID reader-writer module adopts an integrated circuit chip, consequently, not only is the size of the ultrahigh-frequency RFID reader-writer module reduced, but also the ultrahigh-frequency RFID reader-writer module can operate under lower voltage, and for the mobile terminal, an additional booster circuit is not needed. Since the booster circuit and an independent MCU (Microprogrammed Control Unit) are not needed, a large number of elements are reduced, and moreover, the cost is reduced. By means of an external interface unit, the module can be directly embedded into the mobile terminal, and therefore can be conveniently and compatibly used along with the operating platform of the mobile terminal.
Description
Technical field
The utility model belongs to the radio frequency identification equipment field, relates in particular to a kind of super high frequency radio frequency recognition read-write machine and corresponding mobile terminal.
Background technology
The effect of the read write line of radio frequency discrimination RFID equipment is to electronic tag launched microwave energy, and the work of excited electrons label says the word to electronic tag simultaneously.Electronic tag is obtained microwave energy back reflection signal.Read write line carries out demodulation, amplification, decoding and decoding through the reflected signal to electronic tag to be handled, thereby realizes the fixed data of electronic tag stored and reading of data field data, also can the data in the data field be write.In radio-frequency recognition system, the working frequency range of read write line is 860MHz ~ 960MHz, can closely read and write the content in the electronic tag that satisfies the ISO18000-6C agreement, and send the information of the electronic tag of being read and write to radio frequency identification (RFID) terminal.
The radio circuit of existing read write line adopts integrated chip, when needs are installed radio-frequency identification reader/writer in portable terminal, not only needs plug-in MCU control circuit, and has taken the inner more space of portable terminal.
The utility model content
In order to address the above problem, the purpose of the utility model embodiment is to provide a kind of super high frequency radio frequency recognition read-write machine.
The utility model embodiment realizes like this; A kind of super high frequency radio frequency recognition read-write machine comprises the microwave radio circuit, baseband processing circuitry; Single chip machine controlling circuit and be the microwave radio circuit; Baseband processing circuitry, the feed circuit of single chip machine controlling circuit power supply, said microwave radio circuit, baseband processing circuitry and single chip machine controlling circuit are integrated into the RFID control chip; Said super high frequency radio frequency recognition read-write machine also comprises the mobile terminal interface circuit that is used to connect portable terminal, and said RFID control chip links to each other with said feed circuit, said mobile terminal interface circuit respectively.
Further, said microwave radio circuit comprises radiating circuit and receiving circuit,
Said radiating circuit constitutes the carrier wave combiner circuit by the external crystal oscillator of RFID control chip (X200); The carrier wave combiner circuit is through equilibrating to imbalance converter (W201), amplifying through amplifier (Q1); Connect antenna connector through directivity coupling mechanism (W203) again
The signal that the antenna of said receiving circuit receives is through directivity coupling mechanism (W203), from equilibrating to imbalance converter (W201) to the RFID control chip.
Further, said RFID control chip, feed circuit and mobile terminal interface circuit all are arranged on the same printed circuit board.
Another purpose of the utility model embodiment is to provide a kind of portable terminal; Said portable terminal is built-in with super high frequency radio frequency recognition read-write machine; Said rfid interrogator module comprises the microwave radio circuit, baseband processing circuitry, single chip machine controlling circuit and be the microwave radio circuit; Baseband processing circuitry; The feed circuit of single chip machine controlling circuit power supply, said microwave radio circuit, baseband processing circuitry and single chip machine controlling circuit are integrated into the RFID control chip, and said rfid interrogator module also comprises the mobile terminal interface circuit; Said mobile terminal interface circuit is connected to the main control chip of portable terminal through the serial port circuit of portable terminal, and said RFID control chip links to each other with said feed circuit, said mobile terminal interface circuit respectively.
Further, said microwave radio circuit comprises radiating circuit and receiving circuit,
Said radiating circuit constitutes the carrier wave combiner circuit by the external crystal oscillator of RFID control chip (X200); The carrier wave combiner circuit is through equilibrating to imbalance converter (W201), amplifying through amplifier (Q1); Connect antenna connector through directivity coupling mechanism (W203) again
The signal that the antenna of said receiving circuit receives is through directivity coupling mechanism (W203), from equilibrating to imbalance converter (W201) to the RFID control chip.
Further, said RFID control chip, feed circuit and mobile terminal interface circuit all are arranged on the same printed circuit board.
Further, said portable terminal is mobile phone or PDA or panel computer.
In the embodiment of the utility model; Super high frequency radio frequency recognition read-write machine adopts IC chip (including RF transmit-receive circuit, baseband processing circuitry, single chip machine controlling circuit); Thereby not only reduced the volume of rfid interrogator module; And the rfid interrogator module can be operated under the lower voltage, concerning portable terminal, do not need other booster circuit (some needs the WV of 5V existing RFID chip, has to add booster circuit).Owing to does not need booster circuit and MCU independently, thereby reduced a lot of components and parts, and it is low to have reduced cost.Through the external interface unit, module is directly embedded in the portable terminal, and convenient and portable terminal operating platform is compatible to be used.
Description of drawings
Fig. 1 is the structured flowchart of the super high frequency radio frequency recognition read-write machine that provides of the utility model embodiment;
Fig. 2 is the circuit diagram of the super high frequency radio frequency recognition read-write machine that provides of the utility model embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Consult Fig. 1,2, this super high frequency radio frequency recognition read-write machine can be for being built in the unit of portable terminal.Portable terminal can be mobile phone or PDA or panel computer or the like.In the present embodiment, this super high frequency radio frequency recognition read-write machine is a small-sized pcb board card.
This super high frequency radio frequency recognition read-write machine comprises microwave radio circuit 14; Baseband processing circuitry 12; Single chip machine controlling circuit 10 and be microwave radio circuit 14; Baseband processing circuitry 12, the feed circuit 16 of single chip machine controlling circuit 10 power supply, said microwave radio circuit 14, baseband processing circuitry 12 and single chip machine controlling circuit 10 are integrated into the RFID control chip; Said super high frequency radio frequency recognition read-write machine also comprises the mobile terminal interface circuit 18 that is used to connect portable terminal, and said RFID control chip links to each other with said feed circuit 16, said mobile terminal interface circuit 18 respectively.
This microwave radio circuit 14 comprises radiating circuit and receiving circuit; Said radiating circuit constitutes the carrier wave combiner circuit by the external crystal oscillator X200 of RFID control chip; The carrier wave combiner circuit is through equilibrating to imbalance converter W201, amplifying through amplifier Q1; Connect antenna connector through directivity coupling mechanism W203 again, the signal that the antenna of said receiving circuit receives is through directivity coupling mechanism W203, from equilibrating to imbalance converter W201 to RFID control chip.
In the present embodiment, said RFID control chip, feed circuit and mobile terminal interface circuit all are arranged on the same printed circuit board.
The microwave radio circuit is used to launch radio-frequency carrier, and through carrier wave microwave energy active electron label, and the data information transfer that will be modulated to carrier wave is given electronic tag.Receive the data message that electronic tag returns simultaneously.For the electronic tag that meets the ISO18000-6C agreement, the microwave radio of RFID control chip (PR9000) part is not only accomplished modulating/demodulating, the shaping of data, also can start the underlying protocol processor of its chip internal, accomplishes the encoding and decoding of label data.And baseband processing circuitry mainly is responsible for the data protocol processing.
Consult Fig. 2, the microwave radio circuit is divided into radiating circuit and receiving circuit.The RFID control chip (PR9000) that comprises radiating circuit is built-in with voltage controlled oscillator and phase-locked loop circuit, and the external crystal oscillator X200 of RFID control chip (PR9000) constitutes the carrier wave combiner circuit.Signal after carrier wave is synthetic amplifies through RFID control chip internal damping; Through 13,14 pin of RFID control chip export to the balance end that equilibrates to imbalance converter W201, be W201 3,4 pins, W201 output promptly 1 pin connect after through C39, L206 impedance matching power amplifier Q1 after Q1 amplifies again after matching network L205, C33 coupling again through i.e. 1 pin of the input end of W203, the output terminal of directional coupler i.e. 2 pin connects antenna connector.The signal that the antenna of receiving circuit receives is through the 2 pins input of directivity coupling mechanism W203; 4 pins output through W203 equilibrates to the receiving cable in the imbalance converter W201 to U200 again; Receiving cable is balanced mixing circuit, filtering circuit and digital shaping circuit, and the working frequency range of radio-frequency module is 860MHz ~ 960MHz.
When portable terminal when this super high frequency radio frequency recognition read-write machine sends data; The data sending terminal mouth of portable terminal is given the BB_TXD pin of interface circuit U3 through 2 human hair combing wastes of connector CN2, drives through U3 and amplifies the back outputs to RFID control chip (PR9000) from 4 pin of U3 42 pin.When super high frequency radio frequency recognition read-write machine when portable terminal sends data, 41 pin of RFID control chip (PR9000) output signal arrives the Data Receiving port of portable terminal again to 1 pin of connector CN2.
Consult Fig. 2, feed circuit are RFID control chip (PR9000) power supply.WV is 3V, and by exporting after the voltage stabilizing chip U1 voltage stabilizing, the feed circuit of power amplifier Q1 are directly supplied power by the battery of the portable terminal VIN through interface CN2, and power supply voltage range is 3.3V ~ 4.2V.
The working frequency range of the microwave radio circuit of the utility model is 860MHz ~ 960MHz, through the operating platform of portable terminal, super high frequency radio frequency recognition read-write machine is read and write control.
The ultrahigh frequency RFID module for reading and writing of the utility model adopts microwave radio circuit, baseband processing circuitry, and single chip machine controlling circuit is arranged on the printed circuit board PCB, and ultrahigh frequency RFID module for reading and writing volume is 5mm*15mm*2mm.
The course of work of the utility model: energized, after opening super high frequency radio frequency recognition read-write machine and enabling, the each several part circuit is started working; Super high frequency radio frequency recognition read-write machine carries out corresponding actions according to the instruction that the portable terminal operating platform sends; Portable terminal is through the BB_TXD port of U3 and TX and the MCU communication of U3, under the function menu control of portable terminal, when read-write meets the electronic tag of ISO 18000-6C agreement; Start carrier wave combiner circuit, radio-frequency power amplifier in the RFID control chip (PR9000); Encoding and decoding and reception/radiating circuit, entire circuit gets into duty, and the data of encoding and decoding are interaction process between MCU and RFID control chip; Simultaneously MCU uploads to the processor of portable terminal with data through U3, and the display screen that utilizes portable terminal shows the information of electronic tag.
In sum; Compared with prior art, the utility model adopts IC chip (to include RF transmit-receive circuit, baseband processing circuitry; Single chip machine controlling circuit); And the low energy of module is operated in the ELV of 2.7V, thereby concerning portable terminal, does not need other booster circuit (some needs the WV of 5V existing RFID chip, has to add booster circuit).Owing to does not need booster circuit and MCU independently, thereby reduced a lot of components and parts, and it is low to have reduced cost.Through the external interface unit, module is directly embedded in the portable terminal, and convenient and portable terminal operating platform is compatible to be used.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. super high frequency radio frequency recognition read-write machine; Comprise the microwave radio circuit, baseband processing circuitry, single chip machine controlling circuit and be the microwave radio circuit; Baseband processing circuitry; The feed circuit of single chip machine controlling circuit power supply is characterized in that said microwave radio circuit, baseband processing circuitry and single chip machine controlling circuit are integrated into the RFID control chip; Said super high frequency radio frequency recognition read-write machine also comprises the mobile terminal interface circuit that is used to connect portable terminal, and said RFID control chip links to each other with said feed circuit, said mobile terminal interface circuit respectively.
2. super high frequency radio frequency recognition read-write machine according to claim 1 is characterized in that, said microwave radio circuit comprises radiating circuit and receiving circuit,
Said radiating circuit constitutes the carrier wave combiner circuit by the external crystal oscillator of RFID control chip (X200); The carrier wave combiner circuit is through equilibrating to imbalance converter (W201), amplifying through amplifier (Q1); Connect antenna connector through directivity coupling mechanism (W203) again
The signal that the antenna of said receiving circuit receives is through directivity coupling mechanism (W203), from equilibrating to imbalance converter (W201) to the RFID control chip.
3. super high frequency radio frequency recognition read-write machine according to claim 1 is characterized in that, said RFID control chip, feed circuit and mobile terminal interface circuit all are arranged on the same printed circuit board.
4. portable terminal; It is characterized in that said portable terminal is built-in with super high frequency radio frequency recognition read-write machine, said super high frequency radio frequency recognition read-write machine comprises the microwave radio circuit; Baseband processing circuitry; Single chip machine controlling circuit and be the microwave radio circuit, baseband processing circuitry, the feed circuit of single chip machine controlling circuit power supply; Said microwave radio circuit, baseband processing circuitry and single chip machine controlling circuit are integrated into the RFID control chip; Said super high frequency radio frequency recognition read-write machine also comprises the mobile terminal interface circuit, and said mobile terminal interface circuit is connected to the main control chip of portable terminal through the serial port circuit of portable terminal, and said RFID control chip links to each other with said feed circuit, said mobile terminal interface circuit respectively.
5. portable terminal according to claim 4 is characterized in that, said microwave radio circuit comprises radiating circuit and receiving circuit,
Said radiating circuit constitutes the carrier wave combiner circuit by the external crystal oscillator of RFID control chip (X200); The carrier wave combiner circuit is through equilibrating to imbalance converter (W201), amplifying through amplifier (Q1); Connect antenna connector through directivity coupling mechanism (W203) again
The signal that the antenna of said receiving circuit receives is through directivity coupling mechanism (W203), from equilibrating to imbalance converter (W201) to the RFID control chip.
6. portable terminal according to claim 4 is characterized in that, said RFID control chip, feed circuit and mobile terminal interface circuit all are arranged on the same printed circuit board.
7. portable terminal according to claim 4 is characterized in that, said portable terminal is mobile phone or PDA or panel computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206946993U CN202110567U (en) | 2010-12-31 | 2010-12-31 | Ultrahigh-frequency RFID (Radio Frequency Identification) reader-writer and corresponding mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206946993U CN202110567U (en) | 2010-12-31 | 2010-12-31 | Ultrahigh-frequency RFID (Radio Frequency Identification) reader-writer and corresponding mobile terminal |
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| Publication Number | Publication Date |
|---|---|
| CN202110567U true CN202110567U (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206946993U Expired - Fee Related CN202110567U (en) | 2010-12-31 | 2010-12-31 | Ultrahigh-frequency RFID (Radio Frequency Identification) reader-writer and corresponding mobile terminal |
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| CN (1) | CN202110567U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107292373A (en) * | 2017-06-22 | 2017-10-24 | 深圳逗号互联科技有限公司 | One kind miniaturization hyperfrequency read/write circuit module |
| CN111193875A (en) * | 2018-11-15 | 2020-05-22 | 无锡人人行拍网络科技有限公司 | High-definition digital image transmission system receiving end of traversing machine |
-
2010
- 2010-12-31 CN CN2010206946993U patent/CN202110567U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107292373A (en) * | 2017-06-22 | 2017-10-24 | 深圳逗号互联科技有限公司 | One kind miniaturization hyperfrequency read/write circuit module |
| CN111193875A (en) * | 2018-11-15 | 2020-05-22 | 无锡人人行拍网络科技有限公司 | High-definition digital image transmission system receiving end of traversing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20191231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |