CN103714366B - 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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- CN103714366B CN103714366B CN201310741295.3A CN201310741295A CN103714366B CN 103714366 B CN103714366 B CN 103714366B CN 201310741295 A CN201310741295 A CN 201310741295A CN 103714366 B CN103714366 B CN 103714366B
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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, there is provided a kind of hyperfrequency identification based on no networking technology
Duplex channel machine.
Background technology
In order to the real-time tracing of goods and identification, traditional way is joint strip code on object, by screen bar code recognizer
The photoelectric action producing with bar code, to identify bar code thus identifying goods information.But the shortcoming of bar code is it in identification process
In, identification is apart from short and must have light source that bar code is irradiated.In order to overcome the shortcoming of screen bar code recognizer, that passes through now does
Method is using REID (rfid), pastes electronic tag, after electronic tag enters magnetic field, if receiving reading on object
Write hyperfrequency (920mhz) signal that device antenna sends, the energy that just can be obtained by faradic current sends and is stored in electronics core
Product information in piece, or actively send the signal of a certain frequency, after read write line reads information and decodes, deliver to information system
Carry out data processing, thus obtaining Item Information.The advantage of hyperfrequency identification is it is not necessary to closely enter against electronic tag
Row identification, can automatically identify all labels in its read range, per second can read more than ten even up to a hundred label
Ability.
As shown in figure 1, current RF identification channel machine is mainly one direction being identified, only carry out from a direction
Enter identification, the goods needing identification posts electronic tag, electronic tag enters radio-frequency channel machine by drum conveying line, reaches
To after identification position, by the antenna in channel machine and read write line, identified object information is read and is uploaded to information system
In system.Traditional channel machine primary structure is: antenna is installed in the metallic shield top of channel machine, by adjusting antenna
Launch angle and power are adjusting identification range and the distance of antenna.Read write line and sky line traffic control are in certain distance.
In the RF identification channel machine of logistics field, due to the problem of discrimination, it is mainly used in single channel both at home and abroad and sets
Standby, less to multichannel research and engineer applied.And the domestic rise with technology of Internet of things, especially in home-delivery center,
On the basis of based on goods Intelligent Recognition quantity and efficiency requirements, larger to the engineering demand of multi-channel radio frequency identification.
Conventional channels cognitron, can only enter be advanced into from a direction, restraint in the goods identification demand of multi-direction entrance
Handss no plan, and the design due to technique etc., lead to discrimination not to be very high.
Content of the invention
(1) technical problem solving
The present invention, by the breakthrough to conventional radio frequency channel machine technology of identification, enters singly to go out the radio-frequency channel skill of formula using double
Art, efficiently solves multichannel, efficient identification problem, and the information identification for logistics distribution center provides more preferable solution party
Case.
Twin-channel high frequency identification channel machine of the present invention, channel machine adopts in metal rustless steel radome plus absorbing material
Design, Intelligent Dispatching System makes goods two-way access way machine, the series of optimum such as technique of rfid antenna special arrangement
Technique is it is ensured that and improve the recognition efficiency posting electronic tag goods two-way access way machine.
(2) technical scheme
The invention provides a kind of superhigh frequency recognition duplex channel machine based on rfid, including material first entrance, material
Second entrance, material outlet, first antenna, the second antenna, rfid read write line and material-transporting system, described channel machine is vertical
Cube or rectangular structure, are provided with metallic shield outside it, described material first entrance, described material second entrance and
Material outlet is provided with corresponding automatic shield door；Described material first entrance and described material second entrance are separately positioned on institute
State two mutually perpendicular sides of channel machine；Described first antenna identifies the material of material first entrance based on rfid, described
Second antenna identifies the material of material second entrance based on rfid, and described material posts electronic tag；Described rfid read write line connects
Receive the signal that described electronic tag returns；Described material-transporting system also includes replicated structures, and described replicated structures are used for controlling
Switching between the material conveying of material first entrance and the material conveying of material second entrance.
Further, described first antenna is installed on the inwall at the top of described metallic shield, described first antenna
Transmitting and reception direction are perpendicular with the conveying direction of the material of described material first entrance；Described second antenna is installed on described
On the inwall of side wall paralleled with described material second entrance in metallic shield, the transmitting of described second antenna and recipient
To parallel with the conveying direction of the material of described material second entrance；Described first antenna is poliarizing antenna, described second antenna
For coil antenna.
Further, described first antenna is different with the working frequency points of described second antenna.
Further, described first antenna and described second antenna all work in the frequency of 920mhz.
Further, described metallic shield inwall is provided with absorbing material.
Further, described absorbing material is with silica gel as carrier, by adding high-performance nano level electromagnetic-wave absorbent warp
Prolong pressure to form.
Further, described first antenna includes antenna guide rail and antenna plate, and described antenna plate is installed on described antenna and leads
On rail, described antenna plate is made up of aluminium alloy plate and square copper sheet, and described square copper sheet is fixed on described by four pin posts
On aluminium alloy plate.
Further, described automatic shield door is curtain falling type shield door.
Further, described automatic shield door includes fixing door and dodge gate, and described dodge gate is installed on guide rail, passes through
Motor and chain wheel drive.
Further, described replicated structures are made up of transfer climbing structure and structure for conveying.
(3) beneficial effect
Dual pathways cognitron of the present invention will change traditional RF identification pattern, and the goods making needs identification can be from different
Direction enters channel machine, not only reduces the quantity of channel machine, reduces cost, also improves recognition efficiency.Its successfully design and
Application will produce important impact to intelligentized home-delivery center, is once bold innovation and trial to Internet of Things field.
Brief description
Fig. 1 is half-duplex channel machine of the prior art；
Fig. 2 is duplex channel machine sectional view of the present invention；
Fig. 3 is duplex channel machine external structure of the present invention；
Fig. 4: for duplex channel machine antenna assumption diagram of the present invention；
Fig. 5: for the internal upward view of channel machine of the present invention；
Fig. 6: for antenna 1 structure chart；
Fig. 7: the duplex channel machine structure chart of shield door of holding court from behind a screen for band；
Fig. 8: for automatic shield door figure one；
Fig. 9: for automatic shield door figure two.
Wherein: 11: steel construction radome；12: material inlet；13: material outlet；21: antenna；22: door curtain；23: conveying
Line；24: transplant lifting body；25: guide groove；26: spot 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: shield door of holding court from behind a screen；72: spot switch；73: transfer lifting body；74: hopper pipeline；76: automatic shield door；91: activity
Door；92: fixing door；93: dodge gate moving direction.
Specific embodiment
Below with reference to accompanying drawing, the present invention is made further detailed based on the superhigh frequency recognition duplex channel machine of rfid
Describe in detail bright:
The invention discloses a kind of goods mutual entry radio-frequency channel machine posting electronic tag, the entering of two different directions
Enter to have no effect on the discrimination of object, simultaneously enter channel machine due to two-way, increased object on the contrary within the unit interval
Percent of pass.By to absorbing material in the rational deployment of the radio-frequency antenna in the appropriate design of channel machine, channel machine, radome
Reasonable selection and carry out the technological designs such as rational management to goods by control program, makes hyperfrequency duplex channel machine reach work
Journey application requirement.
1st, the optimization design of duplex channel machine and technological process description
Existing half-duplex channel machine, as shown in Figure 1.Goods is identified from a direction, needs the goods of identification
On post electronic tag, electronic tag enters radio-frequency channel machine by drum conveying line, after reaching identification position, by channel machine
Interior antenna and read write line, identified object information is read and is uploaded in information system.Traditional channel machine is mainly tied
Structure is: antenna is installed in the metallic shield top of channel machine, adjusts sky by the launch angle and power adjusting antenna
The identification range of line and distance.Read write line and sky line traffic control are in certain distance.
The duplex channel machine of the present invention, as shown in Figure 2: take and post electronic tag goods and enter respectively from two different directions
Enter channel machine, this is accomplished by carrying out reasonable opening on the steel construction radome of channel machine, the access door ending mouth is in the not used time
Also should have shielded function.
Described duplex channel machine, including automatic shield door system, automatic information identifying system, hopper induction system etc. three
Most of: automatic shield door system by rustless steel outer housing, automatically control shield door, door curtain etc. and form；Automatic information identifying system,
It is made up of rfid read write line, antenna, electronic tag, pc machine and read write line interface module；Hopper induction system by motorized pulleys, lead
Photoswitch of groove and control motorized pulleys etc..
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, in the form of metal fringe door, plays the work of shielding
With.If goods only enters from hopper entrance 1, goods is closed from hopper entrance 2 opening door, and this form is similar to being described above
Traditional form.Photoswitch detects goods after the goods of hopper entrance 1, and the electric drum in channel machine starts to rotate, goods
Thing enters radio-frequency channel machine by drum conveying line, after reaching identification position, enters radio-frequency channel machine by drum conveying line, reaches
To identification position after, by the antenna in channel machine and read write line, identified object information read by rfid read write line and on
Reach in information system.Because recognition speed is fast, goods does not need to stop in channel machine, and object information is read and is uploaded to
In information system.After end of identification, goods from channel machine hopper exit position out, enters lower one technique.
If goods enters from hopper entrance 2, the shield door of feeder connection is opened by automatic control system, this structure
With material as the structure and material of main shield cover.After goods is detected at feeder connection, shield door automatically opens up, passage
Transfer climbing structure jack-up in interior replicated structures, after jack-up, structure for conveying operating, goods is picked in channel machine, close
Switch detects after goods puts in place, and lifting body declines, and after goods detects through photoswitch, starts to identify, identified thing
Body information is read and be uploaded in information system by rfid read write line.In identification process, induction system in channel machine simultaneously to
Outer operating, after end of identification, goods from hopper exit out, enters lower one technique.Need the institute entering from hopper entrance 2
After having goods to complete to enter operation, automatic shield shield door is closed after triggering.
If goods simultaneously from both direction enter channel machine when, plc(Programmable Logic Controller) need goods is passed in and out into
Row Optimized Operation it is ensured that goods effective complete identify operation.For example, when hopper entrance 1 and hopper entrance 2 convey simultaneously
During goods, can be preferentially entered, when excellent according to the high goods of priority scheduling hopper entrance 1 or hopper entrance 2 medium priority
After the completion of the high goods of first level is processed, then goods low for priority is entered.
2nd, the rational deployment of the radio-frequency antenna in channel machine
Electronic label read/write in channel machine is through custom-designed, and such read write line can connect multiple antennas, sky
Line to enter the response of row label according to polling mechanism, and the software on backstage carries out being preset to coordinate on read write line not on the same day simultaneously
The operation of line.Described multiple antennas may operate 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 conveyed at hopper entrance 1
The hopper coming, is designed as 2 parallel antennas, the poliarizing antenna that every group of antenna is made up of 2 groups of copper core, for launching and accepting electricity
Magnetic wave.This antenna 1 hangs on the inner surface of the body of stainless steel of channel machine upper box lid, the transmitting of antenna 1 and reception direction and conveying
Line is vertical；Antenna 2 is mainly used in identifying the hopper that conveying comes at hopper entrance 2, and is designed as 1 larger coil of area
Antenna, 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 reception direction.
In order to improve the recognition efficiency of dual pathways machine, through particular design, its structure chart is as shown in Figure 5, Figure 6 for antenna 1.Should
Antenna 1 is made up 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 the square copper sheet of two panels.Aluminium alloy plate is arranged on guide rail, and guide rail is fixed on the central authorities of the inner surface of channel machine upper box lid
Position.The upper box lid of channel machine is equipped with two pieces of aluminium alloy plates.So rational design and layout, when identifying goods, can be effective
Strengthen magnetic field coverage, increase discrimination.
3rd, in radome absorbing material reasonable selection
In the face of the direction of incident electromagnetic field as the produced vortex flow of metallic plate causes generation and incident electromagnetic field side
To contrary electromagnetic field, thus weakening former magnetic field, or even it is completely counterbalanced by former magnetic field.After sticking absorbing material, can be effectively then
Magnetic field transmission provides effective path, it is to avoid the eddy current effect of metal, thus the energy when electronic tag enters radio-frequency channel machine
Effectively press close to metal surface to use.
The main selection thickness of thin of absorbing material, performance are high, lightweight material, and dual pathways machine uses and with silica gel is
Carrier, is formed through the calendering of thin material calender by adding high-performance nano level electromagnetic-wave absorbent.This electromagnetic wave absorption material cloth
Put in radome inwall, full frequency band absorbs 920m frequency range electromagnetic wave.
4th, duplex channel machine screen door design
In bidirectional recognition channel machine, design two kinds of shield doors.
Hold court from behind a screen shield door 1, be the curtain door structure of rustless steel fringe composition, adopt this structure in the outlet of main conveyor line and entrance
Shield door, very high mainly due to goods frequency of ingress and egress on main conveyor line, this kind of be designed with beneficial to goods pass through, can simultaneously
Effectively shielding electromagnetic wave seepage.
Automatic shield door 2, is divided into fixing door and dodge gate two parts.Fixing door is original radome of channel machine, activity
Door is arranged on guide rail, is driven by motor and sprocket wheel.Automatically control shielding by photoswitch with close to the equipment such as open the light
The folding of door.
The design of duplex channel machine automatic shield door and structure are as shown in Figure 8,9.Automatic shield door 2, be divided into fixing door and
Mobile door two parts.Fixing door radome maintains static, and mobile door is arranged in upper and lower rails, is driven by motor and sprocket wheel
Dynamic.
Motor and sprocket wheel are arranged on upper rail, and drive sprocket is connected with motor, and mobile door top is connected with chain, mobile
Door bottom is moved on lower guideway by pulley.
As shown in figure 8, the upper and lower rails of mobile door can be placed in the both sides of described fixation door, by motor and sprocket wheel
Described movement door is driven to move in parallel with respect to fixing door, described movement door can be hollow structure, when it is to fixing door side
To when moving, fixing door can be placed in inside it for it.Accordingly, fixing door can be hollow structure, and mobile door can be received
It is placed in inside fixing door.
As shown in figure 9, the upper and lower rails of mobile door can be placed in the side of described fixation door, by motor and sprocket wheel
Described movement door is driven to move in parallel with respect to fixing door.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of superhigh frequency recognition duplex channel machine based on rfid, goes out including material first entrance, material second entrance, material
Mouth, first antenna, the second antenna, rfid read write line and material-transporting system it is characterised in that: described channel machine be cube
Or rectangular structure, is provided with metallic shield outside it, described material first entrance, described material second entrance and material
Outlet is provided with corresponding automatic shield door；Described material first entrance and described material second entrance are separately positioned on described leading to
Two mutually perpendicular sides of road machine；The material based on rfid identification material first entrance for the described first antenna, described second
Antenna identifies the material of material second entrance based on rfid, and described material posts electronic tag；Described rfid read write line receives institute
State the signal of electronic tag return；Described material-transporting system also includes replicated structures, and described replicated structures are used for control material
Switching between the material conveying of first entrance and the material conveying of material second entrance；The transmitting of described first antenna and connecing
Debit is to perpendicular with the conveying direction of the material of described material first entrance；Described second antenna is installed on described metallic shield
On the inwall of side wall paralleled with described material second entrance in cover, the transmitting of described second antenna and reception direction with described
The conveying direction of the material of material second entrance is parallel；Described first antenna is poliarizing antenna, and described second antenna is coil sky
Line.
2. channel machine as claimed in claim 1 it is characterised in that: the working frequency points of described first antenna and described second antenna
Different.
3. channel machine as claimed in claim 1 or 2 it is characterised in that: described first antenna and described second antenna all work
Frequency in 920mhz.
4. channel machine as claimed in claim 1 or 2 it is characterised in that: described metallic shield inwall is provided with absorbing material.
5. channel machine as claimed in claim 4 it is characterised in that: described absorbing material is with silica gel as carrier, high by adding
Performance nanoscale electromagnetic-wave absorbent forms through prolonging pressure.
6. channel machine as claimed in claim 1 or 2 it is characterised in that: described first antenna includes antenna guide rail and antenna plate,
Described antenna plate is installed on described antenna guide rail, and described antenna plate is made up of aluminium alloy plate and square copper sheet, described square copper
Piece is fixed on described aluminium alloy plate by four pin posts.
7. channel machine as claimed in claim 1 or 2 it is characterised in that: described automatic shield door be curtain falling type shield door.
8. channel machine as claimed in claim 1 or 2 it is characterised in that: described automatic shield door includes fixing door and dodge gate,
Described dodge gate is installed on guide rail, by motor and chain wheel drive.
9. channel machine as claimed in claim 1 or 2 it is characterised in that: described replicated structures are by transfer climbing structure and defeated
Send structure composition.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN103714366A CN103714366A (en) | 2014-04-09 |
| CN103714366B true CN103714366B (en) | 2017-01-18 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112668683B (en) * | 2020-12-25 | 2021-10-22 | 广州安的电子科技有限公司 | Intelligent safety door and detection method thereof |
| CN113570766B (en) * | 2021-07-27 | 2022-04-19 | 广州安的电子科技有限公司 | Non-inductive channel intelligent networking identification system |
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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 |
| CN103209896A (en) * | 2010-07-28 | 2013-07-17 | Icm空港科技澳大利亚有限公司 | Luggage processing station |
| 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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