CN205091764U - Radio frequency identification reading -writing device - Google Patents
Radio frequency identification reading -writing device Download PDFInfo
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- CN205091764U CN205091764U CN201520826688.9U CN201520826688U CN205091764U CN 205091764 U CN205091764 U CN 205091764U CN 201520826688 U CN201520826688 U CN 201520826688U CN 205091764 U CN205091764 U CN 205091764U
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- 238000004891 communication Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 101100273797 Caenorhabditis elegans pct-1 gene Proteins 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
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- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
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- 238000002372 labelling Methods 0.000 description 1
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Abstract
The utility model provides a radio frequency identification reading -writing device, including external control terminal and radio frequency identification read/write module, radio frequency read/write module includes baseband processing circuit, microwave radio frequency circuit and power management circuit, the baseband processing circuit with external control terminal connection and to baseband signal encode with decode, the microwave radio frequency circuit with baseband processing circuit connection, be used for receiving instruction that the baseband processing circuit was issued the go forward side by side modulation and the demodulation of line number certificate, power management circuit respectively with baseband processing circuit and microwave radio frequency circuit connection, be used for right baseband processing circuit and microwave radio frequency circuit are supplied power, the external control terminal still with power management circuit connection, control going up of power management circuit is electric or lower. Implement the utility model discloses a radio frequency identification reading -writing device has following beneficial effect: the consumption is less, the volume is less, the cost is lower, the reading and writing is comparatively stable.
Description
Technical field
The utility model relates to field of radio frequency identification, particularly a kind of radio frequency identification reading-writing device.
Background technology
Radio-frequency (RF) identification and RFID (RadioFrequencyIDentification) technology, also known as electronic tag, radio frequency identification, it is a kind of communication technology, read and write related data by radio signals identification specific objective, and without the need to setting up machinery or optical contact between recognition system and specific objective.
Ultra-high frequency RFID radio-frequency identification is a kind of contactless automatic identification technology, and it automatically identifies destination object by radiofrequency signal and obtains related data.The ultrahigh frequency RFID system of complete set, be made up of ultrahigh frequency radio frequency identification (RFID) reader, electronic tag and application software system three part, its principle of work is that ultrahigh frequency radio frequency identification (RFID) reader launches the radio wave energy of a characteristic frequency to electronic tag, in order to drive electronic tag, the data of inside are sent, now ultrahigh frequency radio frequency identification (RFID) reader receives data and understands, give application program after deciphering and do corresponding process, at present, the ubiquitous problem of embedded UHF RFID read-write module is that power consumption is large, volume is large, cost is high, read-write is unstable.
Utility model content
The technical problems to be solved in the utility model is, the defect that above-mentioned power consumption for prior art is large, volume is large, cost is high, read-write is unstable, provides the radio frequency identification reading-writing device that a kind of power consumption is less, small volume, cost are lower, read-write is comparatively stable.
The utility model solves the technical scheme that its technical matters adopts: construct a kind of radio frequency identification reading-writing device, comprise PCT and radio frequency identification read-write module, described radio frequency module for reading and writing comprises baseband processing circuitry, microwave radio circuit and electric power management circuit, described baseband processing circuitry is connected with described PCT, and Code And Decode is carried out to baseband signal, described microwave radio circuit is connected with described baseband processing circuitry, for receiving instruction that described baseband processing circuitry issues and carrying out the modulation and demodulation of data, described electric power management circuit is connected with described baseband processing circuitry and microwave radio circuit respectively, for powering to described baseband processing circuitry and microwave radio circuit, described PCT is also connected with described electric power management circuit, and control powering on or lower electricity of described electric power management circuit.
In radio frequency identification reading-writing device described in the utility model, described baseband processing circuitry comprises microprocessor, and described microprocessor is provided with serial communication interface, and described microprocessor is connected with described PCT by described serial communication interface.
In radio frequency identification reading-writing device described in the utility model, described microwave radio circuit comprises the integrated transceiving chip of special-purpose radio-frequency, power splitter, antenna, detecting circuit and power amplifier, encoded baseband signal is converted into modulated signal by the integrated transceiving chip of described special-purpose radio-frequency, and send it to described power splitter, it is gone out by described antenna transmission by described power splitter, described antenna receives the reverse signal of tag reflection, and described reverse signal is sent to described detecting circuit through described power splitter carries out detection, signal after detection is sent to described power amplifier and amplifies by described detecting circuit, and the signal after amplifying is sent to described microprocessor and carries out demodulation.
In radio frequency identification reading-writing device described in the utility model, 33 pin of described microprocessor is connected with the 18 pin of the integrated transceiving chip of described special-purpose radio-frequency, 34 pin of described microprocessor is connected with the 15 pin of the integrated transceiving chip of described special-purpose radio-frequency, 35 pin of described microprocessor is connected with the 16 pin of the integrated transceiving chip of described special-purpose radio-frequency, 36 pin of described microprocessor is connected with the 17 pin of the integrated transceiving chip of described special-purpose radio-frequency, 33 pin of described microprocessor, 34 pin, 35 pin and the 36 pin are SPI communication interface and data-interface.
In radio frequency identification reading-writing device described in the utility model, the 57 pin of described microprocessor is connected with the 9th pin of the integrated transceiving chip of described special-purpose radio-frequency, and the 57 pin of described microprocessor is for controlling pin.
In radio frequency identification reading-writing device described in the utility model, the 38 pin of described microprocessor is connected with the 6th pin of the integrated transceiving chip of described special-purpose radio-frequency, and the 38 pin of described microprocessor is reset pin.
In radio frequency identification reading-writing device described in the utility model, described electric power management circuit comprises low noise power supply chip, described low noise power supply chip is provided with power-on and power-off and controls pin, and described PCT controls pin by an one I/O interface with described power-on and power-off and is connected.
Implement radio frequency identification reading-writing device of the present utility model, there is following beneficial effect: owing to using PCT, baseband processing circuitry, microwave radio circuit and electric power management circuit, baseband processing circuitry carries out Code And Decode to baseband signal, microwave radio circuit is for the instruction that receives baseband processing circuitry and issue and carry out the modulation and demodulation of data, electric power management circuit is powered to baseband processing circuitry and microwave radio circuit respectively, PCT controls powering on or lower electricity of electric power management circuit, such PCT can when not needing radio frequency identification read-write module work powered-down, so just power consumption can be reduced, the structure of radio frequency identification reading-writing device is simple, small volume, this reduces cost, its power consumption is less, small volume, cost is lower, read and write comparatively stable.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation in the utility model radio frequency identification reading-writing device embodiment;
Fig. 2 is the circuit theory diagrams of baseband processing circuitry in described embodiment;
Fig. 3 is the circuit theory diagrams of microwave radio circuit in described embodiment;
Fig. 4 is the circuit theory diagrams of electric power management circuit in described embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In the utility model radio frequency identification reading-writing device embodiment, the structural representation of its radio frequency identification reading-writing device as shown in Figure 1.In Fig. 1, this radio frequency identification reading-writing device comprises PCT 1 and radio frequency identification read-write module 2, wherein, radio frequency module for reading and writing 2 comprises baseband processing circuitry 21, microwave radio circuit 22 and electric power management circuit 23, baseband processing circuitry 21 is connected with PCT 1 Serial Communication of going forward side by side, baseband processing circuitry 21, for processing data, carries out Code And Decode to baseband signal, and control microwave radio circuit 22 carries out work.Microwave radio circuit 22 is connected with baseband processing circuitry 21, for receiving the instruction that baseband processing circuitry 21 issues, perform corresponding operation, complete the modulation and demodulation of data, electric power management circuit 23 is connected with baseband processing circuitry 21 and microwave radio circuit 22 respectively, for powering to baseband processing circuitry 21 and microwave radio circuit 22, PCT 1 is also connected with electric power management circuit 23, and control powering on or lower electricity of electric power management circuit 23, namely power management circuits 23 controls powering on of radio frequency identification read-write module 2 or lower electricity by the control line of PCT 1.Like this, PCT 1 can close the power supply of radio frequency identification read-write module 2 when not needing radio frequency identification read-write module 2 to work, reduce power consumption.It is worth mentioning that, in the present embodiment, the inside of microwave radio circuit 22 is provided with working frequency range setting unit (not shown), and the working frequency range of this working frequency range setting unit is 840MHz ~ 960MHz.The structure of radio frequency identification reading-writing device of the present utility model is simple, and its power consumption is less, small volume, cost are lower, read-write is comparatively stable.
Fig. 2 is the circuit theory diagrams of baseband processing circuitry in the present embodiment.In Fig. 2, this baseband processing circuitry comprises microprocessor U1, and microprocessor U1 adopts ARM32 position Cortex
tMthe STM32F103RCT6 chip of-M3 kernel, is responsible for communicating with PCT 1, carries out data processing, encode and decode to baseband signal, controls microwave radio circuit 22 and works.Microprocessor U1 is provided with serial communication interface, and microprocessor is connected with PCT 1 by serial communication interface.58 pin of microprocessor U1 and the 59 pin are serial communication mouth, and microprocessor U1 is communicated with PCT 1 with the 59 pin by its 58 pin.
Fig. 3 is the circuit theory diagrams of microwave radio circuit in the present embodiment.In Fig. 3, this microwave radio circuit 22 comprises the integrated transceiving chip U7 of special-purpose radio-frequency, power splitter U8, antenna ANTENNA2, detecting circuit U9 and power amplifier U16, wherein, encoded baseband signal is converted into modulated signal by special-purpose radio-frequency integrated transceiving chip U7, and modulated signal is sent to power splitter U8, modulated signal is launched by antenna ANTENNA2 by power splitter U8, antenna ANTENNA2 receives the reverse signal of tag reflection, and reverse signal is sent to detecting circuit U9 through power splitter U8 carries out detection, signal after detection is sent to power amplifier U16 and amplifies by detecting circuit U9, and the signal after amplifying is sent to microprocessor U1 and carries out demodulation.Concrete, the integrated transceiving chip U7 of special-purpose radio-frequency adopts SX1231 chip.The integrated transceiving chip U7 of special-purpose radio-frequency is responsible for the modulation of data, after encoded baseband signal is converted into modulated signal by special-purpose radio-frequency integrated transceiving chip U7, the 4th pin of power splitter U8 is exported to through its 23 pin, exported by the output terminal (the second pin) of power splitter U8 again, the output termination antenna ANTENNA2 of power splitter U8, this completes the transmission of modulated signal.During reception, through power splitter U8 after signal is received by antenna ANTENNA2, the signal input part being outputted to detecting circuit U9 by the 6th pin of power splitter U8 carries out detection, carry out amplification by power amplifier U16 to signal again to process, the signal after amplification sends microprocessor U1 to and carries out demodulation and process.
In the present embodiment, 33 pin of microprocessor U1, the 34 pin, the 35 pin and the 36 pin are SPI communication interface and data-interface, concrete, the 33 pin of microprocessor U1, the 34 pin, the 35 pin and the 36 pin are as the SPI communication port of the integrated transceiving chip U7 of special-purpose radio-frequency in microwave radio circuit 22 and data port.In the present embodiment, 33 pin of microprocessor U1 is connected with the 18 pin of the integrated transceiving chip U7 of special-purpose radio-frequency, 34 pin of microprocessor U1 is connected with the 15 pin of the integrated transceiving chip U7 of special-purpose radio-frequency, 35 pin of microprocessor U1 is connected with the 16 pin of the integrated transceiving chip U7 of special-purpose radio-frequency, and the 36 pin of microprocessor U1 is connected with the 17 pin of the integrated transceiving chip U7 of special-purpose radio-frequency.
In the present embodiment, 57 pin of microprocessor U1 is connected with the 9th pin of the integrated transceiving chip U7 of special-purpose radio-frequency, 57 pin of microprocessor U1 is for controlling pin, 57 pin of microprocessor U1 is used for controlling the reception of the integrated transceiving chip U7 of special-purpose radio-frequency and transmission, 38 pin of microprocessor U1 is connected with the 6th pin of the integrated transceiving chip U7 of special-purpose radio-frequency, 38 pin of microprocessor U1 is reset pin, for resetting to the integrated transceiving chip U7 of special-purpose radio-frequency.
Fig. 4 is the circuit theory diagrams of electric power management circuit in the present embodiment.Electric power management circuit 23 is powered for microprocessor U1, special-purpose radio-frequency integrated transceiving chip U7 and power amplifier U16, in Fig. 4, electric power management circuit 23 comprises low noise power supply chip U2, low noise power supply chip U2 adopts NCP603 chip, the input voltage of low noise power supply chip U2 is 3.6V ~ 5.5V, and such wide input voltage can make radio frequency module for reading and writing 2 go for most mobile terminals.The 3.3V voltage of low noise power supply chip U2 stable output.Low noise power supply chip U2 is provided with power-on and power-off and controls pin, and PCT 1 controls pin by an one I/O interface with power-on and power-off and is connected.Concrete, 3rd pin of low noise power supply chip U2 is the power-on and power-off control pin of radio frequency module for reading and writing 2, PCT 1 controls the power-on and power-off of low noise power supply chip U2 by an I/O port, when the 3rd pin of low noise power supply chip U2 is low level, whole radio frequency module for reading and writing 2 times electricity can be made to quit work, when the 3rd pin of low noise power supply chip U2 is high level, power on namely to radio frequency module for reading and writing 2, such PCT 1 can close the power supply of radio frequency module for reading and writing 2 when not needing radio frequency module for reading and writing 2 to work, reduce power consumption.
In the present embodiment, the workflow of radio frequency module for reading and writing 2 is as follows: after radio frequency module for reading and writing 2 powers on, radio frequency module for reading and writing 2 self each several part circuit is started working and is carried out initialization, and after initialization completes, the instruction that radio frequency module for reading and writing 2 can be assigned according to PCT 1 works accordingly.Under the control of PCT 1, when carrying out reading and writing the electronic tag meeting ISO18000-6C, microprocessor U1 starts the integrated transceiving chip U7 of special-purpose radio-frequency, whole circuit enters duty, encoding and decoding complete in microprocessor U1, and the electronic labeling information after being disposed is uploaded to PCT 1 by microprocessor U1.
In the present embodiment, the working frequency range of radio frequency module for reading and writing 2 is 840MHz ~ 960MHz, therefore the working frequency range 840MHz ~ 845MHz being operated in the ultrahigh frequency RFID meeting national regulation can be customized, 920MHz ~ 925MHz, the read-write electronic tag meeting ISO18000-6C agreement, reads distance and is greater than 0.5 meter.
In a word, in the present embodiment, this radio frequency module for reading and writing 2 comprises baseband processing circuitry 21, microwave radio circuit 22 and electric power management circuit 23, baseband processing circuitry 21 adopts the powerful STM32F103RCT6 chip abundant with Peripheral Interface of processing power as main control microprocessor, radio frequency microwave circuit 22 adopt high-performance, low-power consumption SX123 chip as RF core processing apparatus, there is small volume, lower, the lower-cost feature of power consumption.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a radio frequency identification reading-writing device, it is characterized in that, comprise PCT and radio frequency identification read-write module, described radio frequency module for reading and writing comprises baseband processing circuitry, microwave radio circuit and electric power management circuit, described baseband processing circuitry is connected with described PCT, and Code And Decode is carried out to baseband signal, described microwave radio circuit is connected with described baseband processing circuitry, for receiving instruction that described baseband processing circuitry issues and carrying out the modulation and demodulation of data, described electric power management circuit is connected with described baseband processing circuitry and microwave radio circuit respectively, for powering to described baseband processing circuitry and microwave radio circuit, described PCT is also connected with described electric power management circuit, and control powering on or lower electricity of described electric power management circuit.
2. radio frequency identification reading-writing device according to claim 1, it is characterized in that, described baseband processing circuitry comprises microprocessor, and described microprocessor is provided with serial communication interface, and described microprocessor is connected with described PCT by described serial communication interface.
3. radio frequency identification reading-writing device according to claim 2, it is characterized in that, described microwave radio circuit comprises the integrated transceiving chip of special-purpose radio-frequency, power splitter, antenna, detecting circuit and power amplifier, encoded baseband signal is converted into modulated signal by the integrated transceiving chip of described special-purpose radio-frequency, and send it to described power splitter, it is gone out by described antenna transmission by described power splitter, described antenna receives the reverse signal of tag reflection, and described reverse signal is sent to described detecting circuit through described power splitter carries out detection, signal after detection is sent to described power amplifier and amplifies by described detecting circuit, and the signal after amplifying is sent to described microprocessor and carries out demodulation.
4. radio frequency identification reading-writing device according to claim 3, it is characterized in that, 33 pin of described microprocessor is connected with the 18 pin of the integrated transceiving chip of described special-purpose radio-frequency, 34 pin of described microprocessor is connected with the 15 pin of the integrated transceiving chip of described special-purpose radio-frequency, 35 pin of described microprocessor is connected with the 16 pin of the integrated transceiving chip of described special-purpose radio-frequency, 36 pin of described microprocessor is connected with the 17 pin of the integrated transceiving chip of described special-purpose radio-frequency, 33 pin of described microprocessor, 34 pin, 35 pin and the 36 pin are SPI communication interface and data-interface.
5. the radio frequency identification reading-writing device according to claim 3 or 4, is characterized in that, the 57 pin of described microprocessor is connected with the 9th pin of the integrated transceiving chip of described special-purpose radio-frequency, and the 57 pin of described microprocessor is for controlling pin.
6. radio frequency identification reading-writing device according to claim 5, is characterized in that, the 38 pin of described microprocessor is connected with the 6th pin of the integrated transceiving chip of described special-purpose radio-frequency, and the 38 pin of described microprocessor is reset pin.
7. radio frequency identification reading-writing device according to claim 1, it is characterized in that, described electric power management circuit comprises low noise power supply chip, and described low noise power supply chip is provided with power-on and power-off and controls pin, and described PCT controls pin by an one I/O interface with described power-on and power-off and is connected.
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| CN201520826688.9U CN205091764U (en) | 2015-10-22 | 2015-10-22 | Radio frequency identification reading -writing device |
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| CN201520826688.9U CN205091764U (en) | 2015-10-22 | 2015-10-22 | Radio frequency identification reading -writing device |
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| CN205091764U true CN205091764U (en) | 2016-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110503168A (en) * | 2019-08-19 | 2019-11-26 | 杭州檀木科技有限公司 | Electronic mark read-and-write device and data processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110503168A (en) * | 2019-08-19 | 2019-11-26 | 杭州檀木科技有限公司 | Electronic mark read-and-write device and data processing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: Room 502, West, 5th floor, Kequn building, No. 30 Xueyuan Road, Haidian District, Beijing 100083 Patentee after: SILION TECHNOLOGY Corp.,Ltd. Address before: 100083 c-1912, No. 18, Zhongguancun East Road, Haidian District, Beijing Patentee before: SILION TECHNOLOGY CO.,LTD. |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHINA TECHNOLOGY EXCHANGE Co.,Ltd. Assignor: SILION TECHNOLOGY Corp.,Ltd. Contract record no.: X2022110000042 Denomination of utility model: A RFID read-write device Granted publication date: 20160316 License type: Exclusive License Record date: 20220928 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A RFID read-write device Effective date of registration: 20220930 Granted publication date: 20160316 Pledgee: CHINA TECHNOLOGY EXCHANGE Co.,Ltd. Pledgor: SILION TECHNOLOGY Corp.,Ltd. Registration number: Y2022110000248 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: CHINA TECHNOLOGY EXCHANGE Co.,Ltd. Assignor: SILION TECHNOLOGY Corp.,Ltd. Contract record no.: X2022110000042 Date of cancellation: 20240315 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20160316 Pledgee: CHINA TECHNOLOGY EXCHANGE Co.,Ltd. Pledgor: SILION TECHNOLOGY Corp.,Ltd. Registration number: Y2022110000248 |