CN103714366A - Superhigh frequency recognition duplex channel machine based on RFID - Google Patents
Superhigh frequency recognition duplex channel machine based on RFID Download PDFInfo
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- CN103714366A CN103714366A CN201310741295.3A CN201310741295A CN103714366A CN 103714366 A CN103714366 A CN 103714366A CN 201310741295 A CN201310741295 A CN 201310741295A CN 103714366 A CN103714366 A CN 103714366A
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- 239000000463 material Substances 0.000 claims abstract description 61
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000011358 absorbing material Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 8
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
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- 230000009194 climbing Effects 0.000 claims description 3
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- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
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- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
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Abstract
The invention relates to the field of RFID, and provides a superhigh frequency recognition duplex channel machine based on the RFID. The superhigh frequency recognition duplex channel machine based on the RFID comprises a first material inlet, a second material inlet, a material outlet, a first antenna, a second antenna, an RFID reader-writer and a material conveying system, wherein the channel machine is of a cube or rectangular solid structure, a metal shielding cover is arranged outside the channel machine, the first material inlet, the second material inlet and the material outlet are provided with corresponding automatic shielding doors, the first material inlet and the second material inlet are arranged in two perpendicular side surfaces of the channel machine respectively, the first antenna recognizes materials of the first inlet through the RFID, the second antenna recognizes materials of the second inlet through the RFID, the RFID reader-writer receives signals fed back by an electronic tag, and the material conveying system comprises a transition structure.
Description
Technical field
The present invention relates to REID (RFID) field, a kind of ultrahigh frequency identification duplex channel machine based on without networking technology is provided.
Background technology
For to the real-time tracing of goods and identification, traditional way is joint strip code on object, the photoelectric action producing by screen bar code recognizer and bar code, thus identify bar code identification goods information.But the shortcoming of bar code be its in identifying, decipherment distance is short and must have light source to irradiate bar code.In order to overcome the shortcoming of screen bar code recognizer, current way is to adopt REID (RFID) now, on object, paste electronic tag, electronic tag enters behind magnetic field, if receive ultrahigh frequency (920MHz) signal that reading and writing device antenna sends, the energy that just can rely on induction current to obtain sends the product information being stored in electronic chip, or initiatively send the signal of a certain frequency, after read write line reading information decoding, deliver to infosystem and carry out data processing, thereby obtain Item Information.The advantage of ultrahigh frequency identification is, do not need closely facing to electronic tag, to identify, and can automatically be identified in all labels in its read range, per secondly can read tens even abilities of up to a hundred labels.
As shown in Figure 1, current radio-frequency (RF) identification channel machine is mainly that one direction is identified, only from a direction, enter identification, on the goods that needs to identify, post electronic tag, electronic tag enters radio-frequency channel machine by drum conveying line, reach after recognizing site, by the antenna in channel machine and read write line, the object information being identified is read and is uploaded in infosystem.Traditional channel machine primary structure is: antenna is installed in the metallic shield top of channel machine, by regulating the emission angle of antenna and identification range and the distance that power regulates antenna.Read write line and antenna are controlled in certain distance.
At the radio-frequency (RF) identification channel machine of logistics field, due to the problem of discrimination, be mainly used in single channel equipment both at home and abroad, less to multichannel research and engineering application.And in the domestic rise along with technology of Internet of things, especially home-delivery center, on the basis based on goods Intelligent Recognition quantity and efficiency requirements, larger to the engineering demand of hyperchannel radio-frequency (RF) identification.
Conventional channels cognitron, can only enter from a direction, feel simply helpless, and due to the design of technique etc., it is not very high causing discrimination in the multi-direction goods identification demand entering.
Summary of the invention
(1) technical matters solving
The present invention, by the breakthrough to conventional radio frequency channel machine recognition technology, adopts two radio-frequency channel technology of entering singly to go out formula, and Solving Multichannel, high efficiency identification problem, identify better solution is provided for the information of logistics distribution center effectively.
Twin-channel high frequency identification channel machine of the present invention, channel machine adopts the design that adds absorbing material in metal stainless steel shielding cover, Intelligent Dispatching System makes the two-way access way machine of goods, the series of optimum techniques such as technique of RFID antenna special arrangement, guarantee and improve the recognition efficiency that posts the two-way access way machine of electronic tag goods.
(2) technical scheme
The invention provides a kind of ultrahigh frequency identification duplex channel machine based on RFID, comprise material the first entrance, material the second entrance, material outlet, the first antenna, the second antenna, rfid interrogator and material-transporting system, described channel machine is cube or rectangular structure, its outside is provided with metallic shield, and described material the first entrance, described material the second entrance and material outlet are provided with corresponding automatic shield door; Described material the first entrance and described material the second entrance are separately positioned on two mutually perpendicular sides of described channel machine; The material of described the first antenna based on RFID identification material the first entrance, the material of described the second antenna based on RFID identification material the second entrance, described material posts electronic tag; Described rfid interrogator receives the signal that described electronic tag returns; Described material-transporting system also comprises replicated structures, and described replicated structures is for controlling the switching between the mass transport of material the first entrance and the mass transport of material the second entrance.
Further, described the first antenna is installed on the inwall at the top of described metallic shield, and the throughput direction of the material that transmits and receives direction and described material the first entrance of described the first antenna is perpendicular; Described the second antenna is installed on the inwall of the sidewall paralleling with described material the second entrance in described metallic shield, described the second antenna to transmit and receive direction parallel with the throughput direction of the material of described material the second entrance; Described the first antenna is poliarizing antenna, and described the second antenna is coil antenna.
Further, described the first antenna is different with the working frequency points of described the second antenna.
Further, described the first antenna and described the second antenna all work in the frequency of 920MHz.
Further, described metallic shield inwall is provided with absorbing material.
Further, described absorbing material be take silica gel as carrier, by adding high-performance nano level electromagnetic-wave absorbent, through prolonging to press, forms.
Further, described the first antenna comprises antenna guide rail and antenna plate, and described antenna plate is installed on described antenna guide rail, and described antenna plate is comprised of aluminium alloy plate and square copper sheet, and described square copper sheet is fixed on described aluminium alloy plate by four pin posts.
Further, described automatic shield door is curtain falling type shield door.
Further, described automatic shield door comprises fixed gate and dodge gate, and described dodge gate is installed on guide rail, by motor and chain wheel drive.
Further, described replicated structures is comprised of transfer climbing structure and structure for conveying.
(3) beneficial effect
Binary channels cognitron of the present invention will change traditional radio-frequency (RF) identification pattern, and the goods that makes to need identification is admission passage machine from different directions, not only reduce the quantity of channel machine, reduce costs, and also improve recognition efficiency.It successfully designs and application will produce important impact to intelligentized home-delivery center, to Internet of Things field, is once bold innovation and trial.
Accompanying drawing explanation
Fig. 1 is half-duplex channel machine of the prior art;
Fig. 2 is duplex channel machine cut-open view of the present invention;
Fig. 3 is duplex channel machine external structure of the present invention;
Fig. 4: be duplex channel machine antenna assumption diagram of the present invention;
Fig. 5: be the inner upward view of channel machine of the present invention;
Fig. 6: be antenna 1 structural drawing;
Fig. 7: for being with the duplex channel machine structural drawing of the shield door of holding court from behind a screen;
Fig. 8: be automatic shield door figure mono-;
Fig. 9: be automatic shield door figure bis-.
Wherein: 11: steel construction radome; 12: material inlet; 13: material outlet; 21: antenna; 22: door curtain; 23: pipeline; 24: transplant lifting body; 25: guide groove; 26: luminous point switch; 27: hopper: 31: material inlet 1; 32: material inlet 2; 33: material outlet; 41: antenna 1; 42: antenna 2; 51: antenna guide rail; 52: antenna plate; 61: aluminium alloy plate; 62: square copper sheet; 71,75: the shield door of holding court from behind a screen; 72: luminous point switch; 73: transfer lifting body; 74: hopper pipeline; 76: automatic shield door; 91: dodge gate; 92: fixed gate; 93: dodge gate moving direction.
Embodiment
Below with reference to accompanying drawing, the ultrahigh frequency identification duplex channel machine based on RFID of the present invention is further detailed:
The invention discloses a kind of goods mutual entry radio-frequency channel machine that posts electronic tag, two different directions enter the discrimination that does not affect object, due to two-way admission passage machine simultaneously, within the unit interval, increased on the contrary the percent of pass of object.The choose reasonable of absorbing material and by control program, goods is carried out the technological designs such as rational management in rational deployment by the radio-frequency antenna in the appropriate design of channel machine, channel machine, radome, makes ultrahigh frequency duplex channel machine reach engineering application requirements.
1, the optimal design of duplex channel machine and technological process are described
Existing half-duplex channel machine, as shown in Figure 1.Goods enters and identifies from a direction, on the goods that needs to identify, post electronic tag, electronic tag enters radio-frequency channel machine by drum conveying line, reaches after recognizing site, by the antenna in channel machine and read write line, the object information being identified is read and is uploaded in infosystem.Traditional channel machine primary structure is: antenna is installed in the metallic shield top of channel machine, by regulating the emission angle of antenna and identification range and the distance that power regulates antenna.Read write line and antenna are controlled in certain distance.
Duplex channel machine of the present invention, as shown in Figure 2: take to post electronic tag goods from two different directions difference admission passage machines, this just need to carry out reasonable opening on the steel construction radome of channel machine, and the access door ending mouthful is not the used time is also answered the shielded function of tool.
Described duplex channel machine, comprises the three parts such as automatic shield door system, automatic information recognition system, hopper induction system: automatic shield door system by stainless steel outer cover, automatically control shield door, door curtain etc. and form; Automatic information recognition system, is comprised of rfid interrogator, antenna, electronic tag, pc machine and read write line interface module; Hopper induction system is by motorized pulleys, guide groove and the optoelectronic switch etc. of controlling motorized pulleys.
As shown in Figure 3, the technical process of duplex channel machine is as follows:
Goods hopper entrance 1 is main channel, and the goods inlet port on the right adopts the form of metal fringe door, plays the effect of shielding.If goods only enters from hopper entrance 1, goods is closed from hopper entrance 2 opening doors, and this form is for being similar to above-described traditional form.Optoelectronic switch detects goods from the goods of hopper entrance 1, electric drum in channel machine starts to rotate, goods enters radio-frequency channel machine by drum conveying line, reach after recognizing site, by drum conveying line, enter radio-frequency channel machine, reach after recognizing site, by the antenna in channel machine and read write line, the object information being identified is read and is uploaded in infosystem by rfid interrogator.Because recognition speed is fast, goods does not need to stop in channel machine, and object information is read and is uploaded in infosystem.After end of identification, goods from channel machine hopper exit position out, enters down technique one.
If goods enters from hopper entrance 2, the shield door of feeder connection is opened by automatic control system, and this structure and material is the same with the structure and material of main shield cover.Feeder connection place detects after goods, shield door is opened automatically, transfer climbing structure jack-up in replicated structures in passage, structure for conveying running after jack-up, picks goods in channel machine, after approach switch detects goods and puts in place, lifting body declines, goods, after optoelectronic switch detects, starts identification, and the object information being identified is read and is uploaded in infosystem by rfid interrogator.In identifying, the induction system in channel machine is outwards running simultaneously, and after end of identification, goods from hopper exit out, enters down technique one.All goods that need to enter from hopper entrance 2 complete and enter operation, and automatic shield shield door is closed after triggering.
If goods is during simultaneously from both direction admission passage machine, PLC(Programmable Logic Controller) need to be optimized scheduling to goods, complete identification operation assurance goods effective.For example, when hopper entrance 1 and hopper entrance 2 is simultaneously during conveying articles, can preferentially enter according to priority scheduling hopper entrance 1 or the high goods of hopper entrance 2 medium priorities, after the high goods of priority is finished dealing with, the lower goods of priority is entered.
2, the rational deployment of the radio-frequency antenna in channel machine
Electronic label read/write in channel machine is through custom-designed, and read write line can connect a plurality of antennas like this, and antenna carries out the response of label according to polling mechanism, and the software on backstage presets to coordinate the operation of different antennae on read write line simultaneously.Described a plurality of antennas can work in identical or different frequencies.
As shown in Figure 4, the built-in two kinds of antennas of duplex channel machine, antenna 1 is mainly used in identification and from hopper entrance 1, carries the hopper of coming, and is designed to 2 parallel antennas, and every group of poliarizing antenna that antenna is comprised of 2 groups of copper cores, for launching and accepting electromagnetic wave.This antenna 1 hangs on the inside surface of the body of stainless steel of channel machine upper box lid, and the transmitting of antenna 1 is vertical with pipeline with receive direction; Antenna 2 is mainly used in identification and carries the hopper of coming from hopper entrance 2, and is designed to 1 coil antenna that area is larger, is fixed on the side shield of pipeline, and the transmitting of antenna 2 is parallel with the traffic direction of hopper entrance 2 with receive direction.
In order to improve the recognition efficiency of binary channels machine, antenna 1 is through particular design, and its structural drawing as shown in Figure 5, Figure 6.This antenna 1 is comprised of aluminium alloy plate and square copper sheet.Square copper sheet is fixed on aluminium alloy plate by four pin posts.Each aluminium alloy plate, installs two square copper sheets.Aluminium alloy plate is arranged on guide rail, and guide rail is fixed on the central part of the inside surface of channel machine upper box lid.The upper box lid of channel machine is equipped with two aluminium alloy plates.So rational design and layout, when identification goods, can effectively strengthen magnetic field coverage, increases discrimination.
3, the choose reasonable of absorbing material in radome
The direction of facing incident electromagnetic field also can cause the electromagnetic field producing with incident electromagnetic field opposite direction because of vortex flow that sheet metal produces, thereby weakens former magnetic field, offsets former magnetic field even completely.Stick after absorbing material, can avoid the eddy effect of metal effectively for magnetic field transmission provides effective path, thereby can effectively press close to metal surface when electronic tag enters radio-frequency channel machine, use.
Absorbing material mainly select thin thickness, high, the lightweight material of performance, what binary channels machine adopted is to take silica gel as carrier, by adding high-performance nano level electromagnetic-wave absorbent, through the calendering of thin material calender, forms.This electromagnetic wave absorption material is arranged in radome inwall, and full frequency band absorbs 920M frequency range electromagnetic wave.
4, duplex channel machine screen door design
In bidirectional recognition channel machine, design two kinds of shield doors.
The shield door 1 of holding court from behind a screen, the curtain door forming for stainless steel fringe, adopts this structual shield door at outlet and the entrance of main conveyor line, is mainly because the frequency of coming in and going out of goods on main conveyor line is very high, this kind is designed with and is beneficial to passing through of goods, can effectively shield electromagnetic wave seepage simultaneously.
Automatic shield door 2, is divided into fixed gate and dodge gate two parts.Fixed gate is original radome of channel machine, and dodge gate is arranged on guide rail, by motor and sprocket wheel, drives.By optoelectronic switch with approach the folding that the equipment such as open the light is controlled shield door automatically.
The design of duplex channel machine automatic shield door and structure are as shown in Figure 8,9.Automatic shield door 2, is divided into fixed gate and moving door two parts.Fixed gate radome maintains static, and moving door is arranged on upper and lower guide rail, by motor and sprocket wheel, drives.
Motor and sprocket wheel are arranged on upper rail, and drive sprocket is connected with motor, and moving door top is connected with chain, and move on lower guideway by pulley moving door bottom.
As shown in Figure 8, the upper and lower guide rail of moving door can be placed in the both sides of described fixed gate, by motor and sprocket wheel, drive described moving door with respect to fixed gate parallel, described moving door can be hollow structure, when it moves to fixed gate direction, it can place fixed gate portion in the inner.Accordingly, fixed gate can be hollow structure, and moving door can place in fixed gate inner.
As shown in Figure 9, the upper and lower guide rail of moving door can be placed in a side of described fixed gate, by motor and sprocket wheel, drives described moving door with respect to fixed gate parallel.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. the ultrahigh frequency based on RFID is identified duplex channel machine, comprise material the first entrance, material the second entrance, material outlet, the first antenna, the second antenna, rfid interrogator and material-transporting system, it is characterized in that: described channel machine is cube or rectangular structure, its outside is provided with metallic shield, and described material the first entrance, described material the second entrance and material outlet are provided with corresponding automatic shield door; Described material the first entrance and described material the second entrance are separately positioned on two mutually perpendicular sides of described channel machine; The material of described the first antenna based on RFID identification material the first entrance, the material of described the second antenna based on RFID identification material the second entrance, described material posts electronic tag; Described rfid interrogator receives the signal that described electronic tag returns; Described material-transporting system also comprises replicated structures, and described replicated structures is for controlling the switching between the mass transport of material the first entrance and the mass transport of material the second entrance.
2. channel machine as claimed in claim 1, is characterized in that: described the first antenna is installed on the inwall at the top of described metallic shield, and the throughput direction of the material that transmits and receives direction and described material the first entrance of described the first antenna is perpendicular; Described the second antenna is installed on the inwall of the sidewall paralleling with described material the second entrance in described metallic shield, described the second antenna to transmit and receive direction parallel with the throughput direction of the material of described material the second entrance; Described the first antenna is poliarizing antenna, and described the second antenna is coil antenna.
3. channel machine as claimed in claim 1 or 2, is characterized in that: described the first antenna is different with the working frequency points of described the second antenna.
4. channel machine as claimed in claim 1 or 2, is characterized in that: described the first antenna and described the second antenna all work in the frequency of 920MHz.
5. channel machine as claimed in claim 1 or 2, is characterized in that: described metallic shield inwall is provided with absorbing material.
6. channel machine as claimed in claim 5, is characterized in that: described absorbing material be take silica gel as carrier, by adding high-performance nano level electromagnetic-wave absorbent, through prolonging to press, forms.
7. channel machine as claimed in claim 1 or 2, it is characterized in that: described the first antenna comprises antenna guide rail and antenna plate, described antenna plate is installed on described antenna guide rail, described antenna plate is comprised of aluminium alloy plate and square copper sheet, and described square copper sheet is fixed on described aluminium alloy plate by four pin posts.
8. channel machine as claimed in claim 1 or 2, is characterized in that: described automatic shield door is curtain falling type shield door.
9. channel machine as claimed in claim 1 or 2, is characterized in that: described automatic shield door comprises fixed gate and dodge gate, and described dodge gate is installed on guide rail, by motor and chain wheel drive.
10. channel machine as claimed in claim 1 or 2, is characterized in that: described replicated structures is comprised of transfer climbing structure and structure for conveying.
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| CN201310741295.3A CN103714366B (en) | 2013-12-27 | 2013-12-27 | Superhigh frequency recognition duplex channel machine based on RFID |
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| CN201310741295.3A CN103714366B (en) | 2013-12-27 | 2013-12-27 | Superhigh frequency recognition duplex channel machine based on RFID |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112668683A (en) * | 2020-12-25 | 2021-04-16 | 广州安的电子科技有限公司 | Intelligent safety door and detection method thereof |
| CN113570766A (en) * | 2021-07-27 | 2021-10-29 | 广州安的电子科技有限公司 | Non-inductive channel intelligent networking identification system |
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| CN102968100A (en) * | 2012-11-07 | 2013-03-13 | 上海意利信息科技有限公司 | System and method for controlling automatic production line |
| CN103209896A (en) * | 2010-07-28 | 2013-07-17 | Icm空港科技澳大利亚有限公司 | Luggage processing station |
| CN203265073U (en) * | 2013-04-17 | 2013-11-06 | 深圳市海恒智能技术有限公司 | Multiple-entry book sorting system and book sorting device thereof |
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| CN1924882A (en) * | 2005-08-31 | 2007-03-07 | 东芝泰格有限公司 | Device for recognizing articles having radio frequency tag attached to the articles |
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| CN201890619U (en) * | 2010-08-04 | 2011-07-06 | 上海孚恩电子科技有限公司 | RFID (Radio Frequency Identification)fast goods receiving and sending passage |
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| CN113570766A (en) * | 2021-07-27 | 2021-10-29 | 广州安的电子科技有限公司 | Non-inductive channel intelligent networking identification system |
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