CN205139952U - In remote RFID intelligent terminal read -write system - Google Patents
In remote RFID intelligent terminal read -write system Download PDFInfo
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- CN205139952U CN205139952U CN201520861263.1U CN201520861263U CN205139952U CN 205139952 U CN205139952 U CN 205139952U CN 201520861263 U CN201520861263 U CN 201520861263U CN 205139952 U CN205139952 U CN 205139952U
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Abstract
The utility model relates to an intelligent technical field, concretely relates to in remote RFID intelligent terminal read -write system, including serial communication circuit, little control unit circuit and radio frequency read/write module circuit, serial communication circuit, little control unit circuit and radio frequency read/write module circuit connect gradually, radio frequency read/write module circuit connection power amplification circuit, power amplification circuit connection filtering matching network, filtering matching network connects the RFID antenna, and RFID antenna connection detection circuit, detection circuit connect signal modulation circuit, signal modulation circuit connects radio frequency read/write module circuit, the utility model discloses a radio frequency identification technology waterproof, antimagnetic, high temperature resistant, the long service life that has that the bar code does not possess, read that the distance is far away, data can be encrypted on the label, storage data is capacious, the canned data change waits the advantage freely, its wide application can improve in fields such as commodity circulation control intelligence, goods management by a wide margin manages and operation efficiency reduce cost.
Description
Technical field
The utility model relates to intellectualized technology field, is specifically related to a kind of medium and long distance RFID intelligent terminal read-write system.
Background technology
Automatic identification technology is that it is the Comprehensive Science technology based on computer technology and the communication technology by the important means of information data automatically identifying and reading, automatically input computing machine and method.Automatic identification technology obtains fast development nearly decades in the world, begin to take shape a hi-tech subject comprising bar code, magnetic identification, optical character identification, radio-frequency (RF) identification, bio-identification and image recognition etc. and integrate computing machine, light, electromechanics, the communication technology, bar codes technique, as the first ancestor of automatic identification technology, seems unable to do what one wishes already in today that information automation demand is maked rapid progress.Radio-frequency (RF) identification (RadioFrequencyIdentification, RFID) technology is a dark horse as a kind of infotech of novelty, play incisively and vividly by the advantage of automatic identification technology, the applying frequency of radio-frequency recognition system is a lot, and decipherment distance increases along with the increase of frequency.But be not that frequency is more high better, as ultrahigh frequency UHF (860MHz ~ 960MHz) and microwave M W (2.45GHz ~ 5.8GHz) is easy to accomplish remote read-write operation, but the electronic tag cost compare due to ultrahigh frequency and microwave frequency band is high and radiofrequency signal is more responsive to hydrous matter, make the impact that radio-frequency recognition system performance is easy to by condition of work.The frequency of UHF radio frequency identification signal is higher, wavelength is shorter, to be easy to absorb by the large material of water cut, cause energy weakened significantly, reading/writing distance obviously shortens, and skip rate is uprushed.And in actual applications, the large material of water cut is very general, as liquid, watery wine, beverage etc., so all a kind of awkward situation can be run in occasions such as hospital, supermarket and factories---UHF(or MW) REID is malfunctioning.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, a kind of medium and long distance RFID intelligent terminal read-write system is provided, has that data on the waterproof not available for bar code, antimagnetic, high temperature resistant, long service life, reading distance, label can be encrypted, stored that data capacity is large, the storage information change advantage such as freely.
For solving the problems of the technologies described above, the utility model provides following technical scheme.
The utility model provides a kind of medium and long distance RFID intelligent terminal read-write system, comprise serial communication circuit, micro control unit circuit and radio frequency module for reading and writing circuit, described serial communication circuit, micro control unit circuit is connected successively with radio frequency module for reading and writing circuit, described radio frequency module for reading and writing circuit connects power amplification circuit, described power amplification circuit connects filter matching network, described filter matching network connects RFID antenna, described RFID antenna connects detecting circuit, described detecting circuit connection signal modulation circuit, described signal modulation circuit connects radio frequency module for reading and writing circuit.
As a kind of optimal technical scheme of the present utility model, described radio frequency module for reading and writing circuit adopts ISO/IEC15693 agreement to carry out the data of reading electronic labels.
As a kind of optimal technical scheme of the present utility model, described micro control unit circuit is connected with keyboard, display device or other external units.
As a kind of optimal technical scheme of the present utility model, described radio frequency module for reading and writing circuit provides two kinds of different serial communication interfaces: RS232 and USB interface.
As a kind of optimal technical scheme of the present utility model, what described RFID antenna adopted is high band coil-type antenna.
The beneficial effect that compared with prior art the utility model reaches is: the REID that the utility model adopts has that data on waterproof not available for bar code, antimagnetic, high temperature resistant, long service life, reading distance, label can be encrypted, stored that data capacity is large, the storage information change advantage such as freely, it is widely used in the fields such as operating mode pattern, production process monitoring, smart identity identification, material handling, significantly can improve management and operational paradigm, reduce costs.Therefore study and develop a radio-frequency recognition system possessing high reliability and there is very crucial and important meaning.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for instructions, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.
In the accompanying drawings:
Fig. 1 is the utility model one-piece construction schematic diagram.
Number in the figure is: 1-serial communication circuit; 2-micro control unit circuit; 3-radio frequency module for reading and writing circuit; 4-power amplification circuit; 5-filter matching network; 6-RFID antenna; 7-detecting circuit; 8-signal modulation circuit; 9-external unit.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is only the utility model for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Embodiment: as shown in Figure 1, a kind of medium and long distance RFID intelligent terminal read-write system, comprise serial communication circuit 1, micro control unit circuit 2 and radio frequency module for reading and writing circuit 3, described serial communication circuit 1, micro control unit circuit 2 is connected successively with radio frequency module for reading and writing circuit 3, described radio frequency module for reading and writing circuit 3 connects power amplification circuit 4, described power amplification circuit 4 connects filter matching network 5, described filter matching network 5 connects RFID antenna 6, described RFID antenna 6 connects detecting circuit 7, described detecting circuit 7 connection signal modulation circuit 8, described signal modulation circuit 8 connects radio frequency module for reading and writing circuit 3.
On above-described embodiment preferably, described radio frequency module for reading and writing circuit 3 adopts ISO/IEC15693 agreement to carry out the data of reading electronic labels.
On above-described embodiment preferably, described micro control unit circuit 2 is connected with keyboard, display device or other external units 9.
On above-described embodiment preferably, described radio frequency module for reading and writing circuit 3 provides two kinds of different serial communication interfaces: RS232 and USB interface.
On above-described embodiment preferably, what described RFID antenna 6 adopted is high band coil-type antenna.
Concrete, the utility model mainly comprises read write line hardware circuit and RFID antenna 6 designs, wherein read write line hardware circuit is divided into several parts such as radio frequency module for reading and writing circuit 3, micro control unit circuit 2, power amplification circuit 4, detecting circuit 7, serial communication circuit 1, below just therefrom wherein some functional module of far Distance RFID intelligent terminal read-write system introduce its research & design process respectively.
The effect of radio frequency module for reading and writing circuit 3 of the present utility model produces high-frequency emission power, to excite radio-frequency (RF) tag and to provide energy for it; Modulate transmitting, for sending data to electronic tag; Receive also demodulation from the high-frequency signal of electronic tag.In order to process the data stream be to and from the both direction of electronic tag, high-frequency model has two different signalling channels, is sent to the data of going in electronic tag by radiating circuit branch, and the data coming from electronic tag are by receiving circuit branch process.
Micro control unit circuit 2 of the present utility model is control cores of radio frequency module for reading and writing circuit 3, and primary responsibility communicates with application systems software, and performs the action command sent from application systems software; Control the communication process between electronic tag; The encoding and decoding of baseband signal; Perform anti-collision algorithm; The data that will transmit between electronic tag and read write line are encrypted and decrypted; Carry out authentication two-way between electronic tag and read write line; Other external unit such as keyboard, display device is controlled.
The principle of work of power amplification circuit 4 of the present utility model is: need useful signal to be modulated on high-frequency carrier signal, sent by radio transmitter.High-frequency carrier signal is produced by high frequency oscillator.Under normal circumstances, the high-frequency oscillation signal power that high frequency oscillator produces is very little, the requirement of transmitter antenna to emissive power can not be met, therefore need before transmission through radio-frequency power amplifier to obtain enough output powers, and then medium and long distance identification can be realized.
Communication between the computer information management system on serial communication circuit 1 primary responsibility backstage of the present utility model and main control module, can communicate with different interface modes as required.
Based on above-mentioned, the advantage that the utility model is new is: the REID that the utility model adopts has that data on waterproof not available for bar code, antimagnetic, high temperature resistant, long service life, reading distance, label can be encrypted, stored that data capacity is large, the storage information change advantage such as freely, it is widely used in the fields such as operating mode pattern, production process monitoring, smart identity identification, material handling, significantly can improve management and operational paradigm, reduce costs.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.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 (5)
1. a medium and long distance RFID intelligent terminal read-write system, it is characterized in that: comprise serial communication circuit, micro control unit circuit and radio frequency module for reading and writing circuit, described serial communication circuit, micro control unit circuit is connected successively with radio frequency module for reading and writing circuit, described radio frequency module for reading and writing circuit connects power amplification circuit, described power amplification circuit connects filter matching network, described filter matching network connects RFID antenna, described RFID antenna connects detecting circuit, described detecting circuit connection signal modulation circuit, described signal modulation circuit connects radio frequency module for reading and writing circuit.
2. a kind of medium and long distance RFID intelligent terminal read-write system according to claim 1, is characterized in that: described radio frequency module for reading and writing circuit adopts ISO/IEC15693 agreement to carry out the data of reading electronic labels.
3. a kind of medium and long distance RFID intelligent terminal read-write system according to claim 1, is characterized in that: described micro control unit circuit is connected with keyboard, display device.
4. a kind of medium and long distance RFID intelligent terminal read-write system according to claim 1, is characterized in that: described radio frequency module for reading and writing circuit provides two kinds of different serial communication interfaces: RS232 and USB interface.
5. a kind of medium and long distance RFID intelligent terminal read-write system according to claim 1, is characterized in that: what described RFID antenna adopted is high band coil-type antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520861263.1U CN205139952U (en) | 2015-11-02 | 2015-11-02 | In remote RFID intelligent terminal read -write system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520861263.1U CN205139952U (en) | 2015-11-02 | 2015-11-02 | In remote RFID intelligent terminal read -write system |
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| Publication Number | Publication Date |
|---|---|
| CN205139952U true CN205139952U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520861263.1U Expired - Fee Related CN205139952U (en) | 2015-11-02 | 2015-11-02 | In remote RFID intelligent terminal read -write system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108877695A (en) * | 2018-09-07 | 2018-11-23 | 天津光电通信技术有限公司 | A kind of wireless image receives display circuit and device |
-
2015
- 2015-11-02 CN CN201520861263.1U patent/CN205139952U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108877695A (en) * | 2018-09-07 | 2018-11-23 | 天津光电通信技术有限公司 | A kind of wireless image receives display circuit and device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20171102 |