CN203644055U - Multi-protocol handheld RFID reader-writer - Google Patents
Multi-protocol handheld RFID reader-writer Download PDFInfo
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- CN203644055U CN203644055U CN201320856325.0U CN201320856325U CN203644055U CN 203644055 U CN203644055 U CN 203644055U CN 201320856325 U CN201320856325 U CN 201320856325U CN 203644055 U CN203644055 U CN 203644055U
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Abstract
The utility model discloses a multi-protocol handheld RFID reader-writer. The multi-protocol handheld RFID reader-writer comprises a master controller, a metal detection module, a metal detection antenna, a first protocol module, a second protocol module and a high frequency antenna, the metal detection antenna is connected with the metal detection module, the metal detection module, the first protocol module, and the second protocol module are connected with the master controller, and the high frequency antenna is connected with the first protocol module and the second protocol module. The multi-protocol handheld RFID reader-writer realizes effective integration of a metal detector, an ISO14443A protocol reader-writer and an ISO 14443B protocol reader-writer, solves the problem of application in some special application occasions, and expands the ranges of application of the metal detector, the ISO14443A protocol reader-writer and the ISO 14443B protocol reader-writer.
Description
Technical field
The utility model relates to rfid interrogator technical field, relates in particular to a kind of multi-protocols hand-held RFID read-write device.
Background technology
Hand-held RFID read-write device function is in the market relatively single, it is mainly the read write line of supporting ISO14443A agreement, seldom can relate to ISO144443B agreement, due to influencing each other of two class antennas, technical being difficult to is integrated together the read write line of metal detector and ISO14443 agreement.Along with the development in market, there are many occasions metal detector, ISO14443A agreement and ISO144443B need to be read and integrate, the hand-held RFID read-write device that therefore manufactures and designs multi-protocols becomes the popular research topic in field.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of multi-protocols hand-held RFID read-write device, to solve deficiency of the prior art.
In order to achieve the above object, the purpose of this utility model is achieved through the following technical solutions:
A kind of multi-protocols hand-held RFID read-write device, wherein, comprise primary controller, metal detection module, metal detection antenna, the first protocol module, second protocol module and high frequency antenna, described metal detection antenna connects described metal detection module, and described metal detection module, described the first protocol module, described second protocol module are connected respectively with described primary controller, and described high frequency antenna connects respectively described the first protocol module and described second protocol module.
Above-mentioned multi-protocols hand-held RFID read-write device, wherein, described metal detection module comprises low frequency carrier signal module, power amplification circuit, amplitude stability unit, surveys thresholding setup unit, Q value testing circuit, acquisition mode output unit, receiving antenna and emitting antenna, described low frequency carrier signal module, described power amplification circuit, described amplitude stability unit are connected successively with described emitting antenna, described receiving antenna, described Q value testing circuit, described acquisition mode output unit connect successively, and described Q value testing circuit is connected with described detection thresholding setup unit.
Above-mentioned multi-protocols hand-held RFID read-write device, wherein, described the first protocol module comprises a MCU, modulation circuit, the first power amplification circuit, first carrier input, demodulator circuit and the first bandwidth-limited circuit, a described MCU, described the first modulation circuit, described the first power amplification circuit, described the first bandwidth-limited circuit, described the first demodulator circuit form closed loop, and described first carrier input connects described the first modulation circuit.
Above-mentioned multi-protocols hand-held RFID read-write device, wherein, described second protocol module comprises radio frequency Card Reader chip, the 2nd MCU, the second power amplification circuit, the second carrier wave input and the second bandwidth-limited circuit, described the 2nd MCU, described the second carrier wave input, described the second power amplification circuit, described the second bandwidth-limited circuit are connected with described radio frequency Card Reader chip respectively, and described the second power amplification circuit connects described high frequency antenna.
Above-mentioned multi-protocols hand-held RFID read-write device, wherein, described metal detection antenna and described high frequency antenna are cast, and described metal detection antenna is positioned at the inner ring of described high frequency antenna.
Above-mentioned multi-protocols hand-held RFID read-write device, wherein, described the first protocol module adopts ISO14443A agreement, and described second protocol module adopts ISO14443B agreement.
Compared with the prior art, the beneficial effects of the utility model are:
Realize metal detector, ISO14443A agreement read write line together with the effective integration of ISO14443B agreement read write line, solve the application problem of some particular application, expanded the range of application of metal detector, ISO14443A agreement read write line and ISO14443B agreement read write line.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation block diagram of the utility model multi-protocols hand-held RFID read-write device;
Fig. 2 is the structural representation block diagram of the metal detection module of the utility model multi-protocols hand-held RFID read-write device;
Fig. 3 is the structural representation block diagram of the first protocol module of the utility model multi-protocols hand-held RFID read-write device;
Fig. 4 is the structural representation block diagram of the second protocol module of the utility model multi-protocols hand-held RFID read-write device;
Fig. 5 is the metal detection antenna of the utility model multi-protocols hand-held RFID read-write device and the structural representation of high frequency antenna.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.
With reference to Fig. 1, the utility model multi-protocols hand-held RFID read-write device comprises primary controller, metal detection module, metal detection antenna, the first protocol module, second protocol module and high frequency antenna, metal detection antenna connection metal detecting module, metal detection module, the first protocol module, second protocol module are connected respectively with primary controller, and high frequency antenna connects respectively the first protocol module and second protocol module.In preferred embodiment of the present utility model, the first protocol module adopts ISO14443A agreement, and second protocol module adopts ISO14443B agreement.
Primary controller is the control center of whole system, and the first protocol module and second protocol module share a high frequency antenna, and primary controller is by digital interface and metal detection module, the first protocol module and second protocol module communication.
With reference to Fig. 2, metal detection module comprises low frequency carrier signal module, power amplification circuit, amplitude stability unit, surveys thresholding setup unit, Q value testing circuit, acquisition mode output unit, receiving antenna and emitting antenna, low frequency carrier signal module, power amplification circuit, amplitude stability unit are connected successively with emitting antenna, and receiving antenna, Q value testing circuit, acquisition mode output unit connect successively, Q value testing circuit is connected with detection thresholding setup unit.Low frequency carrier signal module produces the pumping signal of metal detection module, through power amplification circuit, signal is amplified, and then carries out amplitude from motion tracking control through amplitude stability unit, allows signal amplitude keep constant, and promotes emitting antenna.Receiving antenna is used for receiving metal induced signal, when there being metallics to enter in the investigative range of metal detection antenna, can cause the Q value of metal detection antenna to change, Q value testing circuit can detect the variation of Q value, when variable quantity is greater than detection door in limited time, acquisition mode output (14) can output metal detection result.
With reference to Fig. 3, the first protocol module comprises a MCU, modulation circuit, the first power amplification circuit, first carrier input, demodulator circuit and the first bandwidth-limited circuit, a MCU, the first modulation circuit, the first power amplification circuit, the first bandwidth-limited circuit, the first demodulator circuit form closed loop, and first carrier input connects the first modulation circuit.
The one MCU is the control center of whole the first protocol module (ISO14443A system), and system is mainly divided into two parts of sending and receiving, and modulation circuit, first carrier input (13.56MHz carrier wave) and the first power amplification circuit are transmitting portion; The first bandwidth-limited circuit and demodulator circuit are receiving unit, and a MCU and high frequency antenna are the public parts of sending and receiving in system.
In Fig. 3, the one MCU is by the first agreement (ISO14443A agreement) order output after coding, modulate by modulation circuit and 13.56MHz carrier wave, signal after modulation carries out radio-frequency power amplification by the first power amplification circuit, and by high frequency antenna, 13.56MHz carrier energy and the first agreement (ISO14443A agreement) order is radiate.ISO14443A electronic tag owing to having adopted the first power amplification circuit to amplify radio frequency, and designs and can bear powerful high frequency antenna, so can be activated in the space away from high frequency antenna.
In Fig. 3, the ISO14443A electronic tag signal that high frequency antenna is received carries out filtering by the first bandpass filter, and at this one-phase, the first bandpass filter has been carried out amplitude attenuation to 13.56MHz carrier signal; Then the signal of output is delivered to demodulator circuit and carry out demodulation, and export the simulating signal of 106KHz, this signal outputs to the analog to digital conversion pin of a MCU.The one MCU samples and resolves this signal, completes ISO14443A protocol analysis.
With reference to Fig. 4, second protocol module comprises radio frequency Card Reader chip, the 2nd MCU, the second power amplification circuit, the second carrier wave input and the second bandwidth-limited circuit, the 2nd MCU, the second carrier wave input, the second power amplification circuit, the second bandwidth-limited circuit are connected with radio frequency Card Reader chip respectively, and the second power amplification circuit connects high frequency antenna.
In the present embodiment, adopt a kind of radio frequency Card Reader chip to carry out the modulation /demodulation of radiofrequency signal, the modulation /demodulation function that this radio frequency Card Reader chip internal has been realized, therefore, in this embodiment, the 2nd MCU only need to carry out digital information processing.
In Fig. 4, the 2nd MCU outputs to radio frequency Card Reader chip by second protocol (ISO14443B agreement) order after coding, radio frequency Card Reader chip is modulated the order receiving and the second carrier wave input (13.56MHz carrier wave), then the signal after modulation is carried out to power amplification by the second power amplification circuit, and by high frequency antenna, 13.56MHz carrier energy and second protocol (ISO14443B agreement) order are radiate.ISO14443B agreement card owing to having adopted the second power amplification circuit to amplify radio frequency, and designs and can bear powerful high frequency antenna, so can be activated in the space away from high frequency antenna.
In Fig. 4, the ISO14443B agreement card signal that high frequency antenna is received carries out filtering by the second bandpass filter, and at this one-phase, the second bandpass filter has been carried out amplitude attenuation to 13.56MHz carrier signal; Then the signal of output is delivered to radio frequency Card Reader chip and carry out demodulation, radio frequency Card Reader chip output ISO14443B agreement card agreement digital baseband signal, the 2nd MCU directly receives this signal, complete ISO14443B agreement card and resolve, and realization and the telecommunication of ISO14443B agreement card.
With reference to Fig. 5, metal detection antenna and high frequency antenna are cast, and metal detection antenna is preferably placed at the inner ring of high frequency antenna, stay the distance of 3cm～5cm between two antennas, can ensure that by this method two antennas do not disturb mutually.
Can find out from above-described embodiment, advantage of the present utility model is:
Realize metal detector, ISO14443A agreement read write line together with the effective integration of ISO14443B agreement read write line, solve the application problem of some particular application, expanded the range of application of metal detector, ISO14443A agreement read write line and ISO14443B agreement read write line.
Above specific embodiment of the utility model be have been described in detail, but the utility model is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications and alternative also all among category of the present utility model.Therefore,, not departing from equalization conversion and the amendment done under spirit and scope of the present utility model, all should be encompassed in scope of the present utility model.
Claims (6)
1. a multi-protocols hand-held RFID read-write device, it is characterized in that, comprise primary controller, metal detection module, metal detection antenna, the first protocol module, second protocol module and high frequency antenna, described metal detection antenna connects described metal detection module, and described metal detection module, described the first protocol module, described second protocol module are connected respectively with described primary controller, and described high frequency antenna connects respectively described the first protocol module and described second protocol module.
2. multi-protocols hand-held RFID read-write device according to claim 1, it is characterized in that, described metal detection module comprises low frequency carrier signal module, power amplification circuit, amplitude stability unit, survey thresholding setup unit, Q value testing circuit, acquisition mode output unit, receiving antenna and emitting antenna, described low frequency carrier signal module, described power amplification circuit, described amplitude stability unit is connected successively with described emitting antenna, described receiving antenna, described Q value testing circuit, described acquisition mode output unit connects successively, described Q value testing circuit is connected with described detection thresholding setup unit.
3. multi-protocols hand-held RFID read-write device according to claim 1, it is characterized in that, described the first protocol module comprises a MCU, modulation circuit, the first power amplification circuit, first carrier input, demodulator circuit and the first bandwidth-limited circuit, a described MCU, described the first modulation circuit, described the first power amplification circuit, described the first bandwidth-limited circuit, described the first demodulator circuit form closed loop, and described first carrier input connects described the first modulation circuit.
4. multi-protocols hand-held RFID read-write device according to claim 2, it is characterized in that, described second protocol module comprises radio frequency Card Reader chip, the 2nd MCU, the second power amplification circuit, the second carrier wave input and the second bandwidth-limited circuit, described the 2nd MCU, described the second carrier wave input, described the second power amplification circuit, described the second bandwidth-limited circuit are connected with described radio frequency Card Reader chip respectively, and described the second power amplification circuit connects described high frequency antenna.
5. multi-protocols hand-held RFID read-write device according to claim 1, is characterized in that, described metal detection antenna and described high frequency antenna are cast, and described metal detection antenna is positioned at the inner ring of described high frequency antenna.
6. according to multi-protocols hand-held RFID read-write device described in any one in claim 1 to 5, it is characterized in that, described the first protocol module adopts ISO14443A agreement, and described second protocol module adopts ISO14443B agreement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320856325.0U CN203644055U (en) | 2013-12-23 | 2013-12-23 | Multi-protocol handheld RFID reader-writer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320856325.0U CN203644055U (en) | 2013-12-23 | 2013-12-23 | Multi-protocol handheld RFID reader-writer |
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| CN203644055U true CN203644055U (en) | 2014-06-11 |
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| CN201320856325.0U Expired - Fee Related CN203644055U (en) | 2013-12-23 | 2013-12-23 | Multi-protocol handheld RFID reader-writer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105654152A (en) * | 2015-12-25 | 2016-06-08 | 中国科学院上海高等研究院 | Adaptive multi-communication-protocol ultrahigh-frequency RF identification reader-and-writer |
| CN105844439A (en) * | 2016-03-22 | 2016-08-10 | 天津工业大学 | Warehouse management scheme based on ISO 14443B standard |
| CN106919876A (en) * | 2015-12-25 | 2017-07-04 | 北京计算机技术及应用研究所 | The self-adapted protocol changing method of multi-protocols rfid interrogator |
| CN107563470A (en) * | 2017-10-23 | 2018-01-09 | 公安部第研究所 | A kind of hand-held personnel identity perceives and metal detection device |
| CN107704909A (en) * | 2017-10-31 | 2018-02-16 | 公安部第三研究所 | The high-power read write line of high frequency multi-protocols for radio frequency identification |
| CN107832811A (en) * | 2017-10-31 | 2018-03-23 | 公安部第三研究所 | The high-power read write line of low frequency global function for radio frequency identification |
| WO2021133356A3 (en) * | 2019-12-26 | 2022-02-10 | Dimus Proje Teknoloji Tasarim Ve Danismanlik Limited Sirketi | A product system for automating marking, mapping and reporting processes carried out in demining activities |
-
2013
- 2013-12-23 CN CN201320856325.0U patent/CN203644055U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105654152A (en) * | 2015-12-25 | 2016-06-08 | 中国科学院上海高等研究院 | Adaptive multi-communication-protocol ultrahigh-frequency RF identification reader-and-writer |
| CN106919876A (en) * | 2015-12-25 | 2017-07-04 | 北京计算机技术及应用研究所 | The self-adapted protocol changing method of multi-protocols rfid interrogator |
| CN105654152B (en) * | 2015-12-25 | 2018-09-25 | 中国科学院上海高等研究院 | A kind of super high frequency radio frequency recognition read-write machine of adaptive multi-communication protocol |
| CN106919876B (en) * | 2015-12-25 | 2019-12-03 | 北京计算机技术及应用研究所 | The self-adapted protocol switching method of multi-protocols RFID reader |
| CN105844439A (en) * | 2016-03-22 | 2016-08-10 | 天津工业大学 | Warehouse management scheme based on ISO 14443B standard |
| CN107563470A (en) * | 2017-10-23 | 2018-01-09 | 公安部第研究所 | A kind of hand-held personnel identity perceives and metal detection device |
| CN107704909A (en) * | 2017-10-31 | 2018-02-16 | 公安部第三研究所 | The high-power read write line of high frequency multi-protocols for radio frequency identification |
| CN107832811A (en) * | 2017-10-31 | 2018-03-23 | 公安部第三研究所 | The high-power read write line of low frequency global function for radio frequency identification |
| CN107704909B (en) * | 2017-10-31 | 2021-12-28 | 公安部第三研究所 | High-frequency multi-protocol high-power reader-writer for radio frequency identification |
| WO2021133356A3 (en) * | 2019-12-26 | 2022-02-10 | Dimus Proje Teknoloji Tasarim Ve Danismanlik Limited Sirketi | A product system for automating marking, mapping and reporting processes carried out in demining activities |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20151223 |
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| EXPY | Termination of patent right or utility model |