CN201134107Y - Radio frequency recognition network antenna - Google Patents
Radio frequency recognition network antenna Download PDFInfo
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- CN201134107Y CN201134107Y CNU2007203004071U CN200720300407U CN201134107Y CN 201134107 Y CN201134107 Y CN 201134107Y CN U2007203004071 U CNU2007203004071 U CN U2007203004071U CN 200720300407 U CN200720300407 U CN 200720300407U CN 201134107 Y CN201134107 Y CN 201134107Y
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Abstract
A radio frequency identification network antenna comprises a radio frequency antenna TX which transmits the radio frequency signal between the label and the identification reader, a radio frequency wireless receiver N1, a network micro-controller N2 which controls the emission of the reading signal from the radio frequency wireless receiver N1 to the label, receives the response of the label, decodes the identification information of the object of the label and transmits the object identification information and other information on the label to a soft identification reader for the processing; a memory N4, a network physical interface receiver N3, a network separation transformer N5 and a network interface N6. The utility model solves the problems of the RFID technology that the great investment, the incapability of coordinated operation for multi-machine and the occurrence the data collision exist in fields of large area, multi-direction, a plurality of antenna and multi-label dense identification. The radio frequency identification network antenna has the advantages of little investment, the capability of coordinated operation for multi-machine, the more rapid and precise information transmission, the reduction of the operation cost, simple structure and cheap price.
Description
Affiliated technical field
The utility model belongs to opto-electronic information technology, is specifically related to a kind of radio-frequency (RF) identification network antenna that transmits radiofrequency signal between electronic tag and recognizer.
Background technology:
RFID (Radio Frequency Identification) REID is a kind of contactless automatic identification technology, it carries out the noncontact bidirectional data communication by wireless radio frequency mode, related data is discerned and obtained to target, and identification work need not manual intervention.Wireless version as bar code, the RFID technology has the not available waterproof of bar code, antimagnetic, high temperature resistant, long service life, read that distance is big, data can encrypt, store that data capacity is bigger, the canned data change waits advantage freely on the label, by universally acknowledged be one of big important technologies in this century ten, at industry-by-industries such as production, logistics, public transport, animal identification, hazardous material managements wide application prospect is arranged.
Its ultimate principle of RFID REID is to utilize the coupling of radiofrequency signal and space thereof, transport property, realize to static or move in the automaton identification of article to be identified.Rfid system the most basic partly is made up of electronic tag, antenna, recognizer, computer data processing etc.The RFID label can be divided into variety classeses such as low frequency (LF), high frequency (HF), ultrahigh frequency (UHF) and microwave.At present the frequency range that extensively adopts in the world mainly contains 4 kinds: low frequency (125kHZ), high frequency (13.54MHz), ultrahigh frequency (860MHz～960MHZ) and microwave (more than the 2.45GHz).Each frequency range all has its feature, is applicable to different fields.
In the radio-frequency recognition system of a plurality of recognizers and multiple electronic label, exist the bumping method of two kinds of forms, a kind of is that same electronic tag is received the order that different recognizers send simultaneously, and another kind is that a recognizer is received the data that a plurality of different electronic tags return simultaneously.Recognizer must adopt certain anti-collision mechanism can successfully finish the tag recognition in the read write line reach, the read-write operation of data message.For first kind of bumping method, a present recognizer normally disposes 1 antenna, disposes 4 antennas the most for a long time, and is not competent in a plurality of antenna intensive application occasions of needs such as a plurality of object identifications of large tracts of land; For second kind of bumping method, there has been a lot of anticollision mechanism to handle to it, as ALOHA method and binary search algorithm etc., but consider the restriction of the size of electronic tag own, energy consumption, anticollision mechanism also requires simple as far as possible in security function, and this has limited the design of anticollision mechanism to a certain extent.
At present existing RFID recognizer technology is the application based on separate unit.Because the radio frequency line of recognizer can not be oversize, so a recognizer can only be with 4 antennas at most, this is because the structure of recognizer self causes, if carry out the quantity that large tracts of land recognition just can only increase recognizer, in the radio-frequency recognition system of many recognizers and multiple electronic label, but exist some key issues: at first be that investment strengthens, it is big more to use area, required recognizer increases, and investment is also just big more; The 2nd, multimachine coordinated operation well, it is inevitable that data collision takes place; The 3rd, be not easy to upgrade upgrading, development in science and technology is at full speed now, the various algorithmic languages of recognizer, encryption and decryption means and anticollision mechanism are also constantly updating, because each functional module of existing recognizer exists with example, in hardware, the renewal upgrading of recognizer need turn back to manufacturer.
Reduction along with RFID electronic tag cost, the unification of China RFID standard, this technology will progressively be applied to all trades and professions of China, especially China modern logistics warehouse, home-delivery center and supermarket and be in extensive developing period, and the market demand will increase year by year.
Summary of the invention
For the above-mentioned not enough the utility model that overcomes prior art provides in a kind of radio-frequency recognition system that is applied to large tracts of land, multi-faceted, many antennas, multiread head and multiple electronic label, the transmission of investing little, multimachine coordinated operation well, information more rapidly, accurately, reduce running expense, simple in structure, low-cost radio-frequency (RF) identification network antenna.
The technical solution of the utility model comprises:
A radio-frequency antenna TX who between electronic tag and recognizer, transmits radiofrequency signal;
One receives the network microcontroller instruction, to the electronic tag emission or read signal, and the electronic labeling information that receives is transferred to network microcontroller for the wireless radiofrequency transceiver N1 that handles;
A control wireless radiofrequency transceiver N1 reads signal to the electronic tag emission, and receive replying of electronic tag, object id information to electronic tag is decoded, and other relevant informations on the related electronic tag of object id information are arrived soft recognizer for the network microcontroller N2 that handles by Network Transmission;
One is used to store all control programs of RFID network antenna and the storer N4 of temporal data, is the external memory of network microcontroller N2;
A network physical interface transceiver N3 who is connected with network microcontroller N2 by the MII data-interface;
One is played effects such as signal transmission, impedance matching, waveform reparation, clutter inhibition and high voltage isolation, protecting network physical interface transceiver N3 exempts from the network isolation transformer N5 of the damage that electric error causes, network isolation transformer N5 is the magnet assembly that is connected between network physical interface transceiver N3 and the network interface N6;
A network interface N6 who finishes network connecting function.
The utility model has fundamentally changed existing rfid system framework, by the configurable more RFID network antenna read head of soft recognizer operational administrative platform, finishes the work of intensive recognizer coordinated operation.
The utility model and soft recognizer, the network equipment and to have a RFID passive electronic label of unique electronic code linked together are formed a kind of novel rfid system structure.The course of work: the instruction that soft recognizer (PC) sends reading of data by network to some (group) the utility model, promptly open radio-frequency (RF) transceiver after corresponding the utility model receives instruction, the active electron label receives the radiofrequency signal that electronic tag returns simultaneously, close radio-frequency (RF) transceiver after the radiofrequency signal of receiving carried out filtering, demodulation, shaping, generation data-signal and reach soft recognizer (PC), soft recognizer (PC) carries out depositing disk in after the calculation process to the data of receiving, forms database.
The utility model has enlarged the usable range and the effect of RFID technology, make the RFID technical networkization, for realizing that global EPC " Internet of Things " provides strong technical support, as long as the place of computer network is arranged, hang a network antenna, just can gather, can directly surf the Net and monitor with online common platform to the electronic tag within the antenna footprint.If network antenna is placed by certain requirement, it can cover certain area, and the quantity of network antenna is many more, and the zone of covering is just big more, RFID The Application of Technology in the future, just as the mobile phone of today use convenient.
The utility model makes those operations with specific use rfid system reliable more and convenient, as: the miner mine under locatees, and network antenna does not need AC power, even can make wirelessly, can seem safer more reliable in the down-hole.The utility model can be widely used in the field of large tracts of land such as logistics warehouse, retail trade, automobile industry, manufacturing industry, public safety, retail, asset management, medical treatment, rag trade, identification, false proof, traffic, library, military affairs, many tag recognition and be applied to all trades and professions.
Application of the present utility model can break through " bottleneck " difficult problem that the bottom data large tracts of land is gathered automatically in the logistics field, finishes the application of RFID technology on the practical significance aspect the logistics, produces great economic benefit.Compared with prior art also have 1. and shorten the activity duration; 2. improve the operation quality of making an inventory; 3. increase the handling capacity of home-delivery center; 4. reduce running expense; 5. realize visualized management; Advantage the such as 6. transmission of information is rapider, accurate.
Description of drawings
The embodiment that provides below in conjunction with accompanying drawing is described in further detail the utility model.
Fig. 1 is a structured flowchart of the present utility model.Fig. 2 is a wireless radiofrequency transceiver N1 circuit diagram.Fig. 3 is the connecting circuit figure of wireless radiofrequency transceiver N1 and network microcontroller N2.Fig. 4 is a storer N4 wiring diagram.Fig. 5 is the connecting circuit figure of network microcontroller N2 and network physical interface transceiver N3.Fig. 6 is network interface circuit figure.
Embodiment
Among Fig. 1, the utility model comprises: a radio frequency circular polarisation or a linear polarized antenna TX who transmits radiofrequency signal between label and recognizer;
One receives network microcontroller 2 (N1) instruction, to the label emission or read signal, and the label information that receives is transferred to network microcontroller 2 for the wireless radiofrequency transceiver of handling 1 (N1); The utility model wireless radiofrequency transceiver 1 is a NRF905 monolithic wireless transceiver, is operated in the ISM band of 433/868/915MHZ; By a fully-integrated frequency modulator, the receiver of a band detuner, a power amplifier, a crystal oscillator and a regulator are formed;
A control wireless radiofrequency transceiver 1 reads signal to the label emission, and receive replying of label, object id information to label is decoded, and other relevant informations on the related label of object id information are arrived soft recognizer for the network microcontroller of handling 2 (N2) by Network Transmission; The N2 that the utility model is selected for use is DS80C400, DS80C400 be fast with the integrated network microcontroller of the height of 8051 compatibilities, its peripherals comprises the ethernet mac of 10/100bps, 3 serial ports, 1 CAN2.B controller, a 1-Wire controller and 64 I/O pins, DS80C400 provides more resources than 8 8-digit microcontrollers of standard, and a lot of peripheral circuit DS80C400 of standard microcontroller are together integrated it;
One is used to store all control programs of RFID network antenna and the storer 4 (N4) of temporal data, is the external memory of network microcontroller 2; That select for use is flash memory (AT29C512);
A network physical interface transceiver 3 (N3) that is connected with network microcontroller 2 by the MII data-interface, it realizes Physical layer, the IEEE-802.3 standard definition Ethernet PHY, it meets the standard that is used for 10BaseT (the 14th) and 100BaseT X (the 24th and the 25th) among the IEEE-802.3k, that select for use is LXT972ALC, LXT972ALC is that a reception of observing the Fast Ethernet agreement sends chip, LXT972ALC supports the MII of the standard of 10/100MAC, according to 7 layer network traffic models, LXT972ALC is a physical layer equipment, LXT972ALC has finished in the reference model Physical Coding Sublayer (PCS) with the IEEE802.3 standard definition, physical medium additional sub (PMA), function with physical medium independent sub-layer (PMD), all Physical Coding Sublayers of the standard 10BASE-X of LXT972ALC execution IEEE802.3 definition and the function of physics additional sub, it can also carry out all functions of all medium independent sub-layer of 10base-T X connection;
One is played effects such as signal transmission, impedance matching, waveform reparation, clutter inhibition and high voltage isolation; protecting network physical interface transceiver 3 exempts from the network isolation transformer 5 (N5) of the damage that electric error causes; network isolation transformer 5 is to get in touch with the magnet assembly between network physical interface transceiver 3 and the Terminal Network Interface 6, and that select for use is 20F001N.20F001N is a twisted-pair feeder driving/receiver, and there are 2 transmission transformers inside: 1 is 1: 2.5 isolating transformer that is used to send, and 1 is 1: 1 isolating transformer that is used to receive;
A network interface 6 (N6) of finishing network connecting function.
Among Fig. 2, the acp chip of wireless radiofrequency transceiver N1 circuit is NRF905.NRF905 is totally 32 pins.C1～C7 among the figure, L1～L3 forms the LC network, to guarantee the stable of transmitting-receiving frequency; X1, R2, C11, C12 form the crystal oscillator source, for transceiver provides nominal mean frequency; R1 provides the analog references electric current for nRF905; C8, C9, C10 are power filtering capacitor.
Among Fig. 3, N1 is the NRF905 radio transmitting and receiving chip, N2 be DS80C400 be fast with the integrated network microcontroller of the height of 8051 compatibilities.N1 and N2 are connected with two groups of circuits, and one group has 4 lines to be used for data communication (SPI four line locking serial line interfaces); The various controls that another group has 6 lines to be used between N1, N2 enable.10 pin of N1 SPI interface (SPI output) are connected with the 20 pin P3.0 mouths of N2; 11 pin (SPI input) are connected with the 21 pin P3.1 mouths of N2; 12 pin (SPI clock) are connected with the 22 pin P3.2 mouths of N2; 13 pin (SPI output) are connected with the 23 pin P3.3 mouths of N2.6 control lines of N1 connect: 1 pin (TRX_CE enables the chip emission or receives) is connected with the 89 pin P1.0 mouths of N2; 2 pin (PWR_UP chip power) are connected with the 90 pin P1.1 mouths of N2; 3 pin (output of uPCLK clock) are connected with the 91 pin P1.2 mouths of N2; 6 pin (detection of CD carrier wave) are connected with the 92 pin P1.3 mouths of N2; 7 pin (AM matching addresses) are connected with the 93 pin P1.4 mouths of N2; 8 pin (DR emission or reception data are finished) are connected with the 94 pin P1.5 mouths of N2.
Among Fig. 4, N2 is divided into address bus, data bus and control bus with being connected of external memory N4.8 mouths of the P0 port of N2 are connected with D0～D7 of N4 respectively as data bus; The P7 of N2, P2, P6.0, P6.1 port totally 18 mouths are connected with A0～A17 of N4 respectively as address bus; The P6.2 of N2, P6.3, PSEN port as control bus respectively with N4 /CE ,/WE ,/the OE end is connected.
Among Fig. 5, N2 be fast with the integrated network microcontroller DS80C400 of the height of 8051 compatibilities; N3 is that a reception of observing the Fast Ethernet agreement sends chip LXT972ALC.N2 is connected by the MII data-interface with N3.Interface signal comprises: data transmission line (TXD0～3), Data Receiving line (RXD0～3), begin to send (CRS), send conflict (COL), can send (TX_EN), send failure (TX_ER), receive ring frame (RX_ER), receive data (RX_DV), tranmitting data register (TXCLK), receive clock (RXCLK), Clock management (MDC), I/O data management.Connect as follows: 1 pin (CRS) of N2 is connected with 63 pin of N3; 2 pin (COL) of N2 are connected with 62 pin of N3; 3 pin (TXD3) of N2 are connected with 60 pin of N3; 4 pin (TXD2) of N2 are connected with 59 pin of N3; 5 pin (TXD1) of N2 are connected with 58 pin of N3; 6 pin (TXD0) of N2 are connected with 57 pin of N3; 7 pin (TX_EN) of N2 are connected with 56 pin of N3; 8 pin (TXCLK) of N2 are connected with 55 pin of N3; 9 pin (RX_ER) of N2 are connected with 53 pin of N3; 10 pin (RXCLK) of N2 are connected with 52 pin of N3; 11 pin (RX_DV) of N2 are connected with 49 pin of N3; 14 pin (RXD0) of N2 are connected with 48 pin of N3; 15 pin (RXD1) of N2 are connected with 47 pin of N3; 16 pin (RXD2) of N2 are connected with 46 pin of N3; 17 pin (RXD3) of N2 are connected with 45 pin of N3; 18 pin (MDC) of N2 are connected with 43 pin of N3; 19 pin (MDIO) of N2 are connected with 42 pin of N3.
Among Fig. 6, N3 is the network physical interface transceiver, and N5 is a network isolation transformer, and N6 is the RJ45 standard network interface.L1, L2 are respectively network and connect and the exchanges data pilot lamp.24 pin (TPIN) of N3 are connected with 6 pin of N5 by resistance R 6; 23 pin (TPIP) of N3 are connected with 4 pin of N5 by resistance R 7; 20 pin (TPON) of N3 are connected with 3 pin of N5; 19 pin (TPOP) of N3 are connected with 1 pin of N5; 38 pin (LED1) of N3 are connected with L2 is anodal; 37 pin (LED2) of N3 are connected with L1 is anodal.7 pin of N5 are connected with 6 pin (RX-) of N6; 9 pin of N5 are connected with 3 pin (RX+) of N6; 10 pin of N5 are connected with 2 pin (TX-) of N6; 12 pin of N5 are connected with 1 pin (TX+) of N6.
Claims (3)
1, a kind of radio-frequency (RF) identification network antenna is characterized in that: comprise
A radio-frequency antenna TX who between electronic tag and recognizer, transmits radiofrequency signal;
One receives the network microcontroller instruction, to the electronic tag emission or read signal, and the electronic labeling information that receives is transferred to network microcontroller for the wireless radiofrequency transceiver of handling (1);
A control wireless radiofrequency transceiver (1) reads signal to the electronic tag emission, and receive replying of electronic tag, object id information to electronic tag is decoded, and other relevant informations on the related electronic tag of object id information are arrived soft recognizer for the network microcontroller of handling (2) by Network Transmission;
One is used to store all control programs of RFID network antenna and the storer (4) of temporal data, is the external memory of network microcontroller (2);
A network physical interface transceiver (3) that is connected with network microcontroller (2) by the MII data-interface;
One is played effects such as signal transmission, impedance matching, waveform reparation, clutter inhibition and high voltage isolation, protecting network physical interface transceiver (3) exempts from the network isolation transformer (5) of the damage that electric error causes, network isolation transformer (5) is the magnet assembly that is connected between network physical interface transceiver (3) and the Terminal Network Interface (6);
A network interface (6) of finishing network connecting function.
2, radio-frequency (RF) identification network antenna according to claim 1 is characterized in that: wireless radiofrequency transceiver (1) is a NRF905 monolithic wireless transceiver.
3, radio-frequency (RF) identification network antenna according to claim 1 is characterized in that: network microcontroller (2) is DS80C400.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203004071U CN201134107Y (en) | 2007-12-22 | 2007-12-22 | Radio frequency recognition network antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2007203004071U CN201134107Y (en) | 2007-12-22 | 2007-12-22 | Radio frequency recognition network antenna |
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| CN201134107Y true CN201134107Y (en) | 2008-10-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867383A (en) * | 2010-03-12 | 2010-10-20 | 北京创毅视讯科技有限公司 | Sensor network node based on internet of things and transmission method thereof |
| WO2011091622A1 (en) * | 2010-01-29 | 2011-08-04 | 国民技术股份有限公司 | Method and system for near field communication |
| CN101420373B (en) * | 2008-11-19 | 2011-11-09 | 吉林中软吉大信息技术有限公司 | Method for switching between two types of network packets and network apparatus therefor |
| CN103942513A (en) * | 2014-03-24 | 2014-07-23 | 爱康普科技（大连）有限公司 | Mobile reader |
| US10395071B2 (en) | 2016-12-01 | 2019-08-27 | Avery Dennison Retail Information Services, Llc | Control of RFID reader emissions which may cause interference with systems using RFID tags |
-
2007
- 2007-12-22 CN CNU2007203004071U patent/CN201134107Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101420373B (en) * | 2008-11-19 | 2011-11-09 | 吉林中软吉大信息技术有限公司 | Method for switching between two types of network packets and network apparatus therefor |
| WO2011091622A1 (en) * | 2010-01-29 | 2011-08-04 | 国民技术股份有限公司 | Method and system for near field communication |
| CN101867383A (en) * | 2010-03-12 | 2010-10-20 | 北京创毅视讯科技有限公司 | Sensor network node based on internet of things and transmission method thereof |
| CN103942513A (en) * | 2014-03-24 | 2014-07-23 | 爱康普科技（大连）有限公司 | Mobile reader |
| US10395071B2 (en) | 2016-12-01 | 2019-08-27 | Avery Dennison Retail Information Services, Llc | Control of RFID reader emissions which may cause interference with systems using RFID tags |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20121222 |