CN103699917B - RFID is without coupling compact shelving - Google Patents
RFID is without coupling compact shelving Download PDFInfo
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- CN103699917B CN103699917B CN201310734261.1A CN201310734261A CN103699917B CN 103699917 B CN103699917 B CN 103699917B CN 201310734261 A CN201310734261 A CN 201310734261A CN 103699917 B CN103699917 B CN 103699917B
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Abstract
Document management apparatus field the present invention relates to be based on REID, specifically one kind can be prevented effectively from multilayer, coupling effect between multiple intensive support bodys, and then reduce loss, the RFID of document management efficiency is improved without coupling compact shelving, including support body, frequency read/write, support body is provided with two or more for support body to be divided into the lateral partitions of multilayer, it is characterized in that lateral partitions use metal material, lateral partitions are provided with radio-frequency antenna, the matched device of radio-frequency antenna is connected with frequency read/write, the present invention is compared with prior art, by the method using base plate antenna form and antenna match, realize compact shelving between layers, above with below between, without coupling between adjacent support body, reading is altered with nothing, can cascade, low cost and other advantages.
Description
Technical field
Document management apparatus field the present invention relates to be based on REID, specifically one kind can effectively keep away
Exempt from the coupling effect between multilayer, multiple intensive support bodys, and then reduce loss, improve the RFID of document management efficiency without coupling
Compact shelving.
Background technology
In recent years, files in China cause achieves significant progress, and the scale of archives undertaking expands day by day, to file administration
Requirement it is also more and more stricter.In order to accurately be managed the archives in compact shelving, progressively using RFID, (radio frequency is known
Not, Radio Frequency Identification) technology realizes that RFID, also known as radio frequency identification, is a kind of communication
Technology, by radio signals identification specific objective and can read and write related data, and archives can be realized using REID
Automatically search, make an inventory and position, realize the intelligent management of archives, save a large amount of manpowers, improve the effect of file administration
Rate.
More than existing compact shelving in the form of antenna is erect, compact shelving for two-sided, be referred to as before and the back side, every layer
Compact shelving places multiple dividing plates, and antenna is embedded in dividing plate, realizes the reading to filing container.But because antenna is using setting
Placement form, using the direction with antenna parallel, this kind of mode inevitably causes the layer of compact shelving to the labeling rule of label
Between layer, above between the back side, there is coupling phenomenon, and antenna match part master in the prior art between adjacent support body
Power match mode is used, when antenna does not work, aerial coil can form a closed-loop path by adaptation, work as phase
During adjacent Antenna Operation, idle antenna is likely to be coupled to RF energy, and these coupled problems can all cause label to detect not
Accurately, reading problem is altered serious.
The content of the invention
For shortcoming and defect present in prior art, proposition is a kind of not to improve the premise of production cost to the present invention
Under, the coupling effect between multilayer, multiple intensive support bodys can be prevented effectively from, and then loss is reduced, improve document management effect
The RFID of rate is without coupling compact shelving.
The present invention can be reached by following measures：
Without coupling compact shelving, including support body, frequency read/write, support body is provided with two or more to be used for support body a kind of RFID
It is divided into the lateral partitions of multilayer, it is characterised in that lateral partitions use metal material, lateral partitions are provided with radio-frequency antenna, penetrate
The matched device of frequency antenna is connected with frequency read/write.
Radiofrequency signal transmission/reception circuit, microcontroller chip, Port Multiplier are provided with the present invention in frequency read/write, wherein micro-
Control chip is connected with radiofrequency signal transmission/reception circuit, Port Multiplier respectively, and the radiofrequency signal transmission/reception circuit includes
It is connected with modulation circuit output end for the modulation circuit that the crystal oscillator for producing high-frequency signal is connected with crystal oscillator output end
Power amplification circuit, the envelope detection circuit for reception antenna feeding information are connected with envelope detection circuit output end
The comparing decision circuit that demodulation circuit of intermediate frequency is connected with demodulation circuit of intermediate frequency output end, compare the output end of decision circuit with
Microcontroller chip is connected, and the output end of power amplification circuit is connected with the RF signal input end of Port Multiplier, the Port Multiplier
In be provided with more than parallel two-way RF signal switch circuit, more than two output of RF signal switch circuit in Port Multiplier
End is connected with more than two adaptations respectively, and the output end of adaptation is connected with radio-frequency antenna coil, and Port Multiplier is micro-
Control under the control of chip, the break-make of RF signal switch circuit more than control two-way makes what radiofrequency signal transtation mission circuit was sent out
Radio frequency read-write through certain road RF signal switch circuit deliver to the adaptation being connected with the road RF signal switch circuit with
And radio-frequency antenna.
Port Multiplier is additionally provided with filter circuit in the present invention, and filter circuit is arranged on the front end of RF signal switch circuit, uses
Decoupling treatment is filtered in the radiofrequency signal to being input into.
Adaptation includes the alternating current-direct current turning circuit, the input point that are connected with the output end all the way of Port Multiplier in the present invention
The impedance inverter circuit not being connected with the output end of Port Multiplier and the output end of alternating current-direct current turning circuit, and become with impedance
The resonant matching circuit that the output end of circuit is connected is changed, HF switch is wherein provided with alternating current-direct current turning circuit, receive multichannel
The antenna control signal that device is sent out, when control signal is high level, alternating current-direct current turning circuit conducting, when input is low level
When, the circuit is disconnected, and isolation circuit and capacitance-resistance translation circuit are provided with impedance inverter circuit, and isolation circuit uses transformer device structure
Realize, for realizing that capacitance-resistance translation circuit is used for Antenna Impedance Matching to 50 ohm, humorous to the isolation between input, output
The match circuit that shakes uses LC series resonances or LC parallel resonance modes, for radiofrequency signal to be matched into 13.56MHz.
Radiofrequency signal transmission/reception circuit can be connected with more than two Port Multipliers in the present invention, each Port Multiplier
Control end be connected with the microcontroller chip in frequency read/write, the radiofrequency signal that more than two are provided with each Port Multiplier is opened
Powered-down road, every RF signal switch circuit correspondence matching connection device and radio-frequency antenna, by increasing Port Multiplier and with it to matching somebody with somebody
The adaptation and radio-frequency antenna of conjunction, can realize the cascade of multistage intensive rack device.
Two radio-frequency antenna coils for being encapsulated in the horizontal positioned in plate body can be provided with the present invention in lateral partitions, be used
The RF tag in lateral partitions on the article of different zones is subsequently placed in detection.
To two parking spaces before and after preferably support body is divided into the present invention, and corresponding each lateral partitions in support body
In be provided with two radio-frequency antennas for being respectively used to detect RFID label tag in forward and backward space.
Radio-frequency antenna coil can be around being made as rectangle in the present invention.
The present invention compared with prior art, by the method using base plate antenna form and antenna match, realizes compact shelving
Between layers, above with below between, between adjacent support body without coupling, with without alter reading, can cascade, cost it is low excellent
Point, specifically includes：（1）Without coupling, nothing alters reading problem：By using base plate antenna form and aerial matching method, and combine only
Special tag labeling rule, realize compact shelving between layers, above between the back side, between adjacent support body without coupling,
Reading is altered so as to solve the problems, such as compact shelving.（2）Antenna amount is few, simple structure：Every layer of compact shelving need to only be installed in the soleplate
Two antennas, before one each with the back side, compared to antenna form is erect, greatly reduce the quantity of antenna, and need not be by
In antenna insertion dividing plate, simple structure is easy for installation；（3）It is capable of achieving the cascade of more piece compact shelving：The present invention uses more piece compact shelving
The form of cascade, the multiple Port Multipliers of read write line connection, each Port Multiplier connection one saves compact shelving, and Port Multiplier sends out read write line
The radiofrequency signal for going out is sequentially allocated to each layer of compact shelving, can so realize managing multiple compact shelvings with a read write line
Stacked antenna, so as to realize the cascade of more piece compact shelving, realizes the reading of a large amount of intensive labels；（4）It is cost-effective：Using more piece
The form of compact shelving cascade, realizes a read write line management more piece compact shelving, and a side for read write line is connected with every section compact shelving
Formula is compared, and reduces the quantity of read write line；In the form of base plate antenna, compared with antenna form is erect, antenna is reduced
Quantity, and power splitter is not needed, greatly reduce production cost.
Brief description of the drawings：
Accompanying drawing 1 is structural representation of the invention.
Accompanying drawing 2 is circuit structure block diagram of the invention.
Accompanying drawing 3 is the structured flowchart of adaptation in the present invention.
Accompanying drawing 4 is use state schematic diagram of the invention.
Accompanying drawing 5 is the circuit structure block diagram employed in the embodiment of the present invention 1.
Reference：Support body 1, lateral partitions 2, radio-frequency antenna 3, radiofrequency signal transmission/reception circuit 4, microcontroller chip 5,
It is Port Multiplier 6, adaptation 7, alternating current-direct current turning circuit 8, impedance inverter circuit 9, resonant matching circuit 10, RF tag 11, upper
Machine 12,
Specific embodiment：
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, the present invention proposes a kind of RFID without coupling compact shelving, including support body 1, frequency read/write, support body
Two or more is provided with for support body to be divided into the lateral partitions 2 of multilayer, it is characterised in that lateral partitions 2 use metal material
Matter, lateral partitions are provided with radio-frequency antenna 3, and the matched device of radio-frequency antenna 3 is connected with frequency read/write.
As shown in Figure 2, be provided with frequency read/write in the present invention radiofrequency signal transmission/reception circuit 4, microcontroller chip 5,
Port Multiplier 6, wherein microcontroller chip 5 are connected with radiofrequency signal transmission/reception circuit 4, Port Multiplier 6 respectively, the radiofrequency signal
Transmission/reception circuit 4 includes the modulation circuit and modulation for producing the crystal oscillator of high-frequency signal to be connected with crystal oscillator output end
Power amplification circuit, the envelope detection circuit for reception antenna feeding information and envelope detection that circuit output end is connected
The comparing decision circuit that the demodulation circuit of intermediate frequency that circuit output end is connected is connected with demodulation circuit of intermediate frequency output end, compares
The output end of decision circuit is connected with microcontroller chip, the output end of power amplification circuit and the RF signal input end of Port Multiplier
It is connected, RF signal switch circuit more than parallel two-way is provided with the Port Multiplier 6, more than two radio frequencies in Port Multiplier
The output end of signal switching circuit is connected with more than two adaptations 7 respectively, output end and the radio-frequency antenna 3 of adaptation 7
Coil is connected, and under the control of microcontroller chip 5, the break-make of RF signal switch circuit more than control two-way makes Port Multiplier 6
The radio frequency read-write that radiofrequency signal transtation mission circuit is sent out is delivered to through certain road RF signal switch circuit and opened with the road radiofrequency signal
Adaptation 7 and radio-frequency antenna 3 that powered-down road is connected.
Port Multiplier 6 is additionally provided with filter circuit in the present invention, and filter circuit is arranged on the front end of RF signal switch circuit, uses
Decoupling treatment is filtered in the radiofrequency signal to being input into.
As shown in Figure 3, adaptation 7 includes that the alternating current-direct current being connected with the output end all the way of Port Multiplier 6 is led in the present invention
The impedance that circuit passband 8, input is connected with the output end of Port Multiplier 6 and the output end of alternating current-direct current turning circuit 8 respectively becomes
Circuit 9 is changed, and the resonant matching circuit 10 being connected with the output end of impedance inverter circuit 9, wherein alternating current-direct current turning circuit 8
In be provided with HF switch, receive the antenna control signal that Port Multiplier 6 is sent out, when control signal is high level, alternating current-direct current conducting
Circuit 8 is turned on, and when input is low level, the circuit disconnects, and isolation circuit and capacitance-resistance conversion are provided with impedance inverter circuit 9
Circuit, isolation circuit is realized using transformer device structure, for realizing that, to the isolation between input, output, capacitance-resistance translation circuit is used
In by Antenna Impedance Matching to 50 ohm, resonant matching circuit 10 uses LC series resonances or LC parallel resonance modes, for inciting somebody to action
Radiofrequency signal matches 13.56MHz.
Radiofrequency signal transmission/reception circuit 4 can be connected with more than two Port Multipliers 6 in the present invention, each multichannel
The control end of device 6 is connected with the microcontroller chip 5 in frequency read/write, and the radio frequency of more than two is provided with each Port Multiplier 6
Signal switching circuit, every RF signal switch circuit correspondence matching connection device 7 and radio-frequency antenna, by increase Port Multiplier 6 and
With it to the adaptation and radio-frequency antenna that coordinate, the cascade of multistage intensive rack device can be realized.
As shown in Figure 4, penetrating for two horizontal positioneds being encapsulated in plate body can be provided with the present invention in lateral partitions 2
The coil of frequency antenna 3, for detecting the RF tag 11 being subsequently placed in lateral partitions 2 on the article of different zones.
In the present invention preferably by 1 point of support body for before and after to two parking spaces, and corresponding each transverse direction in support body 1 every
Two radio-frequency antennas 3 for being respectively used to detect RFID label tag in forward and backward space, the coil of radio-frequency antenna 3 in the present invention are provided with plate 2
Can be around being made as rectangle.
Embodiment 1：
As shown in figure 5, the present invention propose six layers of two-sided RFID of one kind without couple compact shelving, including support body, frequency read/write,
Port Multiplier, adaptation, base plate antenna, control wire size line a, rf signal line b, communication signal line c, being additionally provided with can read with radio frequency
Write the host computer 12 that device is communicated through telecommunication circuit.
The compact shelving body can be six layers of two-sided compact shelving, before two sides the is referred to as and back side, compact shelving body
The number of plies can according to practical application need depending on, preferably six layers,
The frequency read/write, input is connected by communication signal line with host computer 12, output end and Port Multiplier phase
Connection, for generating control signal, radiofrequency signal and communication signal, wherein control signal include Port Multiplier switch-over control signal and
Antenna switch control signal, Port Multiplier switch-over control signal is transmitted directly to Port Multiplier, the break-make for controlling Port Multiplier, antenna
Switch-over control signal sends adaptation to through Port Multiplier, the break-make for controlling antenna；Read write line is the core of whole file administration
The heart, controls flow direction, the break-make of control signal of radiofrequency signal, receives the order of host computer, realizes related operation；One read-write
Device can connect multiple Port Multipliers, according to the difference of application conditions, attachable Port Multiplier also difference.
The Port Multiplier 6, has two inputs, 12 output ends, and two inputs are that control signal is input into and penetrates
Frequency signal input, is connected by control signal wire and rf signal line with read write line respectively, before 12 output ends connect respectively
Face and six adaptations at the back side；The break-make of Port Multiplier is controlled by the Port Multiplier switch-over control signal of read write line transmission, and is connect
The radiofrequency signal sent from read write line is received, radiofrequency signal 12 tunnel radiofrequency signals will be converted into all the way.
The adaptation 7, input is connected with Port Multiplier 6, and output end is connected with radio-frequency antenna 3, receives from many
The radiofrequency signal and antenna switch control signal of road device 6, Port Multiplier 6 are used to control the break-make of antenna, by the energy of radiofrequency signal
Send antenna to, and complete twin aerial matching, reduce RF energy reflection, improve the capacity usage ratio of antenna；
A read write line can connect multiple Port Multipliers in the present invention（It is two in the present embodiment）, each Port Multiplier connection one
Be sequentially allocated the radiofrequency signal that read write line sends to each layer of compact shelving by section compact shelving, Port Multiplier, can so realize using
One stacked antenna of the multiple compact shelvings of read write line management, so as to realize the cascade of more piece compact shelving, realizes a large amount of intensive labels
Reading.
Embodiment 2：
As shown in figure 4, the present invention in the form of base plate antenna, can realize compact shelving between layers, above with
Without coupling between the back side, between adjacent support body；
The radio-frequency antenna is the form of squaerial frame, and every layer of compact shelving places two antennas, before and the back side each one
It is individual, above antenna and back side antenna are referred to as, two squaerial frames are parallel to each other, and parallel are embedded in lateral partitions or bottom
In the hardware of plate；
When using, filing container is placed on compact shelving lateral partitions or base plate, and RF tag is pasted onto the bottom of filing container,
It is parallel with the plane where the radio-frequency antenna encapsulated in lateral partitions and close away from plane where antenna, read into improve
Power, RF tag should be placed in the detection zone of squaerial frame；
RF tag is parallel with the plane where radio-frequency antenna in lateral partitions in the present invention, and close away from radio-frequency antenna,
It is detectable label that radio-frequency antenna needs little RF energy, so frequency read/write needs the RF energy for sending very
It is few, by the power output for controlling frequency read/write, it is ensured that during the Antenna Operation of upper strata, lower floor's antenna cannot be coupled to upper strata antenna
The RF energy for sending；And it is also equipped with hardware between the levels antenna of compact shelving, lateral partitions or base plate
Metal material can absorb the downward magnetic field of antenna so that lower floor's antenna cannot be coupled to the RF energy that upper strata antenna sends,
So as to realize compact shelving between layers without coupling.
Antenna and back side antenna are all embedded in the metal knot of lateral partitions or base plate before every layer of compact shelving in the present invention
In component, hardware can absorb the RF energy that magnetic field is sent, the radio frequency that above antenna and back side antenna are sent
Energy is limited in respective antenna frame region, and when current surface antenna works, back side antenna cannot be coupled to above antenna and be sent out
The RF energy for going out, the label at the back side cannot also obtain the RF energy that above antenna is sent, before realizing compact shelving
Without coupling effect between face and the back side.
In the present invention each of squaerial frame while produce one around this while toroidal magnetic field, the label of adjacent support body is only
Can be detected when having in toroidal magnetic field, because radio-frequency antenna is embedded in the lateral partitions of metal material or base plate,
Metal can absorb the RF energy that magnetic field is sent, so plane where antenna is without RF energy, the present invention is using uniqueness
Tag labeling rule, label is affixed on the bottom of filing container, close apart from plane where antenna, so the label of adjacent support body is not
Can be activated, so as to realize between adjacent support body without coupling.
Embodiment 3：
As shown in figure 3, the present invention puies forward the method using antenna match, the nothing between the back side can be realized before compact shelving
Coupling；The Port Multiplier can include radio frequency input circuit, control switching circuit and rf output circuit, the radio frequency input electricity
Road, radiofrequency signal comes from frequency read/write, and comprising filtering and decoupling circuit；The control switching circuit, controls each road radio frequency
Output port, per a HF switch is corresponded to all the way, control switching circuit determines which is opened according to Port Multiplier switch-over control signal
HF switch all the way, so that road radiofrequency signal conducting；The rf output circuit, its break-make is controlled by HF switch, when
When the road turns on, radiofrequency signal can be exported to adaptation.
The method that adaptation uses antenna match in the present invention, compared with traditional power match, antenna match is without day
During line switch-over control signal, aerial coil can not form closed-loop path, so antenna can not transmit RF energy
The adaptation is mainly made up of individual part：Alternating current-direct current turning circuit, impedance inverter circuit, resonant matching circuit,
The alternating current-direct current turning circuit, input is connected with Port Multiplier, receives the antenna control signal of Port Multiplier transmission, alternating current-direct current conducting
HF switch is provided with circuit, according to antenna switch control signal, the break-make of radiofrequency signal is controlled, when input is high level
When, circuit turn-on, when input is low level, circuit shut-off；The impedance inverter circuit, input respectively with Port Multiplier and friendship
Direct current turning circuit is connected, and receives the radiofrequency signal of Port Multiplier transmission, and impedance inverter circuit includes that isolation circuit and capacitance-resistance become
Change circuit, isolation circuit is realized using transformer, with alternating current-direct current conductive path collective effect, realize between input and output every
From capacitance-resistance translation circuit is provided with resistance and electric capacity, and isolation circuit collective effect, by Antenna Impedance Matching to 50 ohm；Resonance
Match circuit is realized using LC series resonances or LC parallel resonance modes, for radiofrequency signal to be matched into 13.56MHz.
Every layer of compact shelving includes two antennas in the present invention, before antenna and back side antenna, it is many when current surface antenna works
Road device sends antenna switch control signal and radiofrequency signal to adaptation, the alternating current-direct current turning circuit conducting in adaptation, penetrates
Frequency signal is sent to above antenna, and now back side antenna does not work, and corresponding alternating current-direct current turning circuit disconnects, and isolation circuit is not led
It is logical, input is disconnected with output, aerial coil can not form closed-loop path, so now back side antenna can not couple energy, from
And without coupling between the back side before realizing.
The present invention compared with prior art, by the method using base plate antenna form and antenna match, realizes compact shelving
Between layers, above with below between, between adjacent support body without coupling, with without alter reading, can cascade, cost it is low excellent
Point, specifically includes：（1）Without coupling, nothing alters reading problem：By using base plate antenna form and aerial matching method, and combine only
Special tag labeling rule, realize compact shelving between layers, above between the back side, between adjacent support body without coupling,
Reading is altered so as to solve the problems, such as compact shelving.（2）Antenna amount is few, simple structure：Every layer of compact shelving need to only be installed in the soleplate
Two antennas, before one each with the back side, compared to antenna form is erect, greatly reduce the quantity of antenna, and need not be by
In antenna insertion dividing plate, simple structure is easy for installation；（3）It is capable of achieving the cascade of more piece compact shelving：The present invention uses more piece compact shelving
The form of cascade, the multiple Port Multipliers of read write line connection, each Port Multiplier connection one saves compact shelving, and Port Multiplier sends out read write line
The radiofrequency signal for going out is sequentially allocated to each layer of compact shelving, can so realize managing multiple compact shelvings with a read write line
Stacked antenna, so as to realize the cascade of more piece compact shelving, realizes the reading of a large amount of intensive labels；（4）It is cost-effective：Using more piece
The form of compact shelving cascade, realizes a read write line management more piece compact shelving, and a side for read write line is connected with every section compact shelving
Formula is compared, and reduces the quantity of read write line；In the form of base plate antenna, compared with antenna form is erect, antenna is reduced
Quantity, and power splitter is not needed, greatly reduce production cost.
Claims (1)
1. without coupling compact shelving, including support body, frequency read/write, support body is provided with two or more for support body to be divided to a kind of RFID
It is divided into the lateral partitions of multilayer, it is characterised in that lateral partitions use metal material, lateral partitions are provided with radio-frequency antenna, radio frequency
The matched device of antenna is connected with frequency read/write；Wherein support body is to two parking spaces and corresponding in support body before and after being divided into
Each lateral partitions in be provided with two radio-frequency antennas for being respectively used to detect RFID label tag in forward and backward space；It is additionally provided with archives
Box and RFID label tag, RFID label tag are affixed on the bottom of filing container, and filing container is placed on the dividing plate of support body；
Be provided with radiofrequency signal transmission/reception circuit, microcontroller chip, Port Multiplier in frequency read/write, wherein microcontroller chip respectively with
Radiofrequency signal transmission/reception circuit, Port Multiplier are connected, and the radiofrequency signal transmission/reception circuit is included for producing high frequency
Power amplification circuit that the modulation circuit that the crystal oscillator of signal is connected with crystal oscillator output end is connected with modulation circuit output end,
For reception antenna feeding information envelope detection circuit be connected with envelope detection circuit output end demodulation circuit of intermediate frequency,
The comparing decision circuit being connected with demodulation circuit of intermediate frequency output end, the output end for comparing decision circuit is connected with microcontroller chip
Connect, the output end of power amplification circuit is connected with the RF signal input end of Port Multiplier, be provided with parallel in the Port Multiplier
RF signal switch circuit more than two-way, in Port Multiplier more than two output ends of RF signal switch circuit respectively with two
Adaptation above is connected, and the output end of adaptation is connected with radio-frequency antenna coil；Port Multiplier is additionally provided with filter circuit, filter
Wave circuit is connected with the input of RF signal switch circuit；
Adaptation include the alternating current-direct current turning circuit, the input that are connected with the output end all the way of Port Multiplier respectively with Port Multiplier
The impedance inverter circuit that the output end of output end and alternating current-direct current turning circuit is connected, and the output with impedance inverter circuit
The resonant matching circuit that end is connected, is provided with isolation circuit and capacitance-resistance translation circuit in impedance inverter circuit, isolation circuit is used
Transformer device structure realizes that resonant matching circuit uses LC series resonances or LC parallel resonance modes, for radiofrequency signal to be matched
To 13.56MHz；HF switch is wherein provided with alternating current-direct current turning circuit, the antenna control signal that Port Multiplier is sent out is received, works as control
When signal processed is high level, the conducting of alternating current-direct current turning circuit, when input is low level, the circuit disconnects；
Radiofrequency signal transmission/reception circuit is connected with more than two Port Multipliers, and the control end of each Port Multiplier is and radio frequency
Microcontroller chip in read write line is connected, and the RF signal switch circuit of more than two, every radio frequency are provided with each Port Multiplier
Signal switching circuit correspondence matching connection device and radio-frequency antenna；Lateral partitions are provided with two horizontal positioneds being encapsulated in plate body
Radio-frequency antenna coil, radio-frequency antenna coil is around being made as rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310734261.1A CN103699917B (en) | 2013-12-27 | 2013-12-27 | RFID is without coupling compact shelving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310734261.1A CN103699917B (en) | 2013-12-27 | 2013-12-27 | RFID is without coupling compact shelving |
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| Publication Number | Publication Date |
|---|---|
| CN103699917A CN103699917A (en) | 2014-04-02 |
| CN103699917B true CN103699917B (en) | 2017-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310734261.1A Active CN103699917B (en) | 2013-12-27 | 2013-12-27 | RFID is without coupling compact shelving |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106778418B (en) * | 2016-12-20 | 2019-10-25 | 威海北洋光电信息技术股份公司 | A kind of device and method realizing label and efficiently reading |
| CN108078282A (en) * | 2018-01-22 | 2018-05-29 | 合肥美的智能科技有限公司 | Rack assembly, retail cabinet and the radio frequency antenna apparatus for being sold cabinet |
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|---|---|---|---|---|
| CN1218583A (en) * | 1996-05-13 | 1999-06-02 | 奥根公司 | Flat antenna |
| CN101034768A (en) * | 2006-02-17 | 2007-09-12 | 日本电气株式会社 | Antenna for commodity management and controlling method thereof |
| CN102668241A (en) * | 2010-03-24 | 2012-09-12 | 株式会社村田制作所 | Rfid system |
| CN103094667A (en) * | 2005-07-07 | 2013-05-08 | 户田工业株式会社 | Magnetic antenna |
| CN203644056U (en) * | 2013-12-27 | 2014-06-11 | 威海北洋电气集团股份有限公司 | RFID (Radio Frequency Identification) no-coupling movable rack |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218583A (en) * | 1996-05-13 | 1999-06-02 | 奥根公司 | Flat antenna |
| CN103094667A (en) * | 2005-07-07 | 2013-05-08 | 户田工业株式会社 | Magnetic antenna |
| CN101034768A (en) * | 2006-02-17 | 2007-09-12 | 日本电气株式会社 | Antenna for commodity management and controlling method thereof |
| CN102668241A (en) * | 2010-03-24 | 2012-09-12 | 株式会社村田制作所 | Rfid system |
| CN203644056U (en) * | 2013-12-27 | 2014-06-11 | 威海北洋电气集团股份有限公司 | RFID (Radio Frequency Identification) no-coupling movable rack |
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| Publication number | Publication date |
|---|---|
| CN103699917A (en) | 2014-04-02 |
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