CN207319242U - RFID system and read-write equipment - Google Patents

RFID system and read-write equipment Download PDF

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Publication number
CN207319242U
CN207319242U CN201590001133.9U CN201590001133U CN207319242U CN 207319242 U CN207319242 U CN 207319242U CN 201590001133 U CN201590001133 U CN 201590001133U CN 207319242 U CN207319242 U CN 207319242U
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China
Prior art keywords
substrate
route
read
conductor
coil
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CN201590001133.9U
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Chinese (zh)
Inventor
万代俊治
斋藤阳
斋藤阳一
小恒恭平
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Murata Manufacturing Co Ltd
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Murata Manufacturing Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

The utility model provides a kind of RFID system and read-write equipment, wherein, the running gear for being equipped with RFID tag travels on 2 routes for separating predetermined distance extension respectively.Read-write equipment (10) has in substrate (12) of the interarea formed with loop aerial (16) and carries out wireless communication with RFID tag.Loop aerial (16), which includes respectively, has opening (OP11) and the coil-conductor (CIL11) and coil-conductor (CIL12) that are open (OP12) and are connected in series.Herein, opening (OP11) and (OP12) has a roughly the same area, and the distance between (OP11) and (OP12) that is open and the distance between 2 routes are basically identical.

Description

RFID system and read-write equipment
Technical field
RFID system is the utility model is related to, its RFID in the running gear institute band along defined route running (Radio Frequency Identifier：Radio frequency identification) wireless communication is carried out between label and read-write equipment.
Background technology
The method of the RFID tag for reading the article institute band moved on fixed course is disclosed in patent document One example.According to patent document 1, carrying fork truck carries the cargo of RFID tag, and by the way that there is provided multiple read-write days The door of line.Reader utilizes mutiple antennas, to read the id information of the RFID tag of cargo institute band.
Prior art literature
Patent document
Patent document 1：Japanese Patent Laid-Open 2014-131934 publications
Utility model content
Utility model technical problem to be solved
However, in the case where setting multiple read-write antennas, it is necessary to interfering with each other between preventing antenna, and be used to prevent The mechanism interfered with each other can become complicated.Particularly, the multiple running gears travelled respectively on a plurality of route are each provided with In the case of mutiple antennas is respectively configured on RFID tag and a plurality of route, the mechanism for preventing from interfering with each other becomes more It is complicated.
Therefore, the purpose of this utility model is to provide a kind of RFID system, it can be travelled respectively along a plurality of route Running gear on carry out easy and reliable wireless communication between set RFID tag and read-write equipment.
Another purpose of the utility model is to provide a kind of read-write equipment, it can be with travelling respectively along a plurality of route Running gear on carry out easy and reliable wireless communication between set RFID tag.
Solve the technical solution of technical problem
The read-write equipment of the utility model is following RFID system, including：RFID tag, it, which is arranged at, is separating regulation The running gear travelled respectively on a plurality of route of distance extension；And read-write equipment, its with substrate and with RFID tag into Row wireless communication, the substrate possess interarea and have the loop aerial of wireline reel, annular day in the normal direction of the interarea Line, which includes respectively, has multiple multiple coil-conductors for being open and being connected in series, and multiple openings substantially have equal area, more Distance and predetermined distance between a opening is basically identical.
Preferably, configured, substrate multiple openings when overlooking are overlapping with a plurality of route difference a plurality of Route Plane.
Multiple openings have major axis and short axle respectively, and substrate is configured along the extending direction of a plurality of route.
In addition, substrate is configured at the underface of a plurality of route.
In addition, multiple coil-conductors include respectively：It is formed on an interarea of substrate and with the first volume around the number of turn Part I coil-conductor；And it is formed on another interarea of substrate and has and be more than the first volume around the second of the number of turn The Part II coil-conductor of the number of turn is wound, another interarea of substrate is configured to opposite with a plurality of route.
In addition, read-write equipment also has the process circuit handled RF signals, the process circuit is with the quilt when overlooking The mode that multiple coil-conductors are clamped is installed on substrate.
The read-write equipment of the utility model has on interarea formed with the ring for carrying out wireless communication with RFID tag The substrate of shape antenna, the RFID tag are arranged at the walking dress travelled respectively on a plurality of route for separating predetermined distance extension Put, loop aerial, which includes respectively, has multiple multiple coil-conductors for being open and being connected in series, and multiple openings substantially have phase Same area, the distance and predetermined distance between multiple openings are basically identical.
Utility model effect
Loop aerial includes the multiple coil-conductors being connected in series, therefore the magnetic field intensity of loop aerial is led in multiple coils Multiple openings that body each has local increase respectively.Herein, multiple be open has roughly the same area, between multiple openings Distance between distance and a plurality of route is basically identical.Thus, by the way that substrate is configured to multiple openings and a plurality of road when overlooking Line difference is overlapping, so as to easy between the RFID tag and read-write equipment of the running gear along each route running and Reliably carry out wireless communication.
The following reality that the above-mentioned purpose, other purposes, feature and advantage of the utility model can carry out by referring to accompanying drawing The detailed description for applying example further obtains clearly.
Brief description of the drawings
Fig. 1 is the stereogram of the basic structure for the read-write equipment for showing the RFID system suitable for the utility model.
Fig. 2 is the schematic thinking of the structure for the read-write equipment for showing the RFID system suitable for the present embodiment.
Fig. 3 is the schematic thinking for the major part structure for representing the read-write equipment shown in Fig. 2.
Fig. 4 is the bottom view for representing the state from the underface of the read-write equipment shown in Fig. 2.
Fig. 5 is the circuit diagram for the equivalent circuit for representing the read-write equipment shown in Fig. 2.
Fig. 6 is an exemplary schematic thinking of the use state for representing the read-write equipment shown in Fig. 2.
Fig. 7 (A) is an exemplary schematic thinking of the position relationship for representing read-write equipment and track shown in Fig. 2, Fig. 7 (B) be the position relationship for representing another read-write equipment and track an exemplary schematic thinking.
Fig. 8 (A) is the stereogram for representing the state of running gear (minicar) from oblique upper, Fig. 8 (B) be represent from The bottom view of the state of underface observation running gear.
Fig. 9 is an exemplary schematic thinking for representing the racing bicycle road after being completed track and read-write equipment.
Figure 10 is another the exemplary schematic thinking for the use state for representing the read-write equipment shown in Fig. 2.
Figure 11 is another the exemplary schematic thinking for representing the racing bicycle road after being completed track and read-write equipment.
Figure 12 (A) is the bottom view for representing the state of the read-write equipment of another embodiment from underface, Figure 12 (B) It is the top view for representing the state of the read-write equipment of another embodiment from surface.
Embodiment
[basic structure]
The basic structure of the read-write equipment of RFID system suitable for the utility model is shown in Fig. 1.According to Fig. 1, read-write Device is with formed with loop aerial 2 and RFIC, (Radio Frequency Integrated Circuit- are penetrated on interarea Frequency integrated circuit) element 3 substrate 1.Loop aerial 2 includes 2 for having 2 opening OP1 and OP2 respectively and being connected in series Coil-conductor CIL1 and CIL2.Herein, opening OP1 and OP2 has roughly the same area.In addition, 2 routes RT1 and RT2 are put down Configure and extend parallel to face, the distance between the OP1 and OP2 that is open and the distance between 2 the routes RT1 and RT2 are basically identical. In addition, RFIC elements 3 include the RFIC chip with read-write capability to form, loop aerial 2 is connected to RFIC elements 3, forms Read-write antenna.
Substrate 1 is configured in the underface of route RT1 and RT2 so that be open when overlooking OP1 and OP2 and route RT1 and RT2 difference is overlapping.Running gear (not shown) is equipped with RFID tag and is travelled on each bar route RT1 and RT2.If walking Device between read-write equipment and RFID tag by above coil-conductor CIL1 or CIL2, then carrying out using HF frequency bands as carrier wave The wireless communication of frequency.
Loop aerial 2 includes 2 coil-conductors CIL1 and CIL2 being connected in series, therefore the magnetic field intensity of loop aerial 2 Be open OP1 and OP2 local increases respectively at 2.Herein, opening OP1 and OP2 has a roughly the same area, opening OP1 and The distance between distance and route RT1 and RT2 between OP2 is basically identical.Thus, by the way that substrate 1 is configured to be open when overlooking OP1 and OP2 is overlapping with route RT1 and RT2 difference, so as in the RFID of the running gear travelled along route RT1 or RT2 It is easy and reliably carry out wireless communication between label and read-write equipment.In addition, coil-conductor CIL1 or CIL2 is with each coil The magnetic field produced on conductor is connected with the mode of phase, so that the magnetic field of each coil-conductor is difficult to couple.
[embodiment]
With reference to Fig. 2 and Fig. 3, the read-write equipment 10 of the embodiment is the typical dress using 13.56MHz frequency bands as communication band Put, include the substrate 12 for being rectangle epoxy resin as raw material and interarea.Although substrate 12 is so-called printing cloth The hard substrate of line plate is but it is also possible to be with flexible substrate.In this embodiment, X-axis is distributed to the length in substrate 12 Spend on direction, by Y-axis distribution on the width of substrate 12, by Z axis distribution on the thickness direction of substrate 12.
In the center of an interarea (lower surface in detail) of substrate 12, i.e., between coil-conductor CIL1 and CIL2 Region, installs the RFIC elements 14 with read-write capability and (the Peripheral Interface of the PIC with control function Controller- Peripheral Interface Controllers) element 22.More specifically, RFIC elements 14 be installed on Y direction slightly by near The position of negative side, PIC elements 22 be installed on Y direction of principal axis slightly by the position of nearly positive side.PIC elements 22 pass through wiring conductor 20 It is connected with RFIC elements 14, is connected by wiring conductor 24 with outside 26 (aftermentioned) of wiring.Wiring conductor 24 forms and external electrical The Interface Terminal on road.
Loop aerial 16 is connected with bar-shaped interlayer and is led by ring shaped conductor 16a~16d, the wiring conductor 16e of film-form Body 18a~18b is formed.Wherein, the region of the negative side of X-direction of the ring shaped conductor 16a configurations in an interarea of substrate 12, The region of the positive side of X-direction of the ring shaped conductor 16b configurations in an interarea of substrate 12.In addition, ring shaped conductor 16c is configured The region of the negative side of X-direction in another interarea (upper surface in detail) of substrate 12, ring shaped conductor 16d configurations exist The region of the positive side of X-direction in another interarea of substrate 12.Wiring conductor 16e is configured to another master in substrate 12 Extend on the position of the negative side of Y direction in face along X-direction.Interlayer connection conductor 18a is in the master relative to substrate 12 Face center is embedded to substrate 12 close to the position of the negative side of X-direction with the posture extended along Z axis.Interlayer connection conductor 18b In the interarea center relative to substrate 12 close to the position of the positive side of X-direction, substrate is embedded to the posture extended along Z axis 12。
Respective one end of ring shaped conductor 16a and 16b are connected to RFIC elements 14.The other end of ring shaped conductor 16a via Interlayer connection conductor 18a is connected with one end of ring shaped conductor 16c, and the other end of ring shaped conductor 16b is via interlayer connection conductor 18b It is connected with one end of ring shaped conductor 16d.Also, the respective other end of ring shaped conductor 16c and 16d by wiring conductor 16e that This connection.
Thus, coil-conductor CIL11 is formed by ring shaped conductor 16a and 16c and interlayer connection conductor 18a, passes through annular Conductor 16b and 16d and interlayer connection conductor 18b forms coil-conductor CIL12.Coil-conductor CIL11 and CIL12 have respectively Towards the opening OP11 and OP12 of Z-direction, and it is serially connected.
As can be seen from FIG. 4, be open OP1 area and opening OP2 area it is basically identical, opening OP1 and OP2 be respectively provided with Short axle along X-axis extension and the major axis along Y-axis extension.That is, when overlooking, the outer rim shape of coil-conductor CIL1, CIL2 There is the shape of major axis in the extending direction along route RT11 and RT12.In addition, route RT11 and RT12 described later has phase Same width, extends parallel in the plane, the distance between the OP1 and OP2 that is open and the distance between this 2 routes RT11 and RT12 It is basically identical.The magnetic field intensity of loop aerial 16 partly increases respectively in each opening OP11 and OP12 being formed as above. Each coil-conductor is formed by the laminated coil of overlapping multiple ring shaped conductors on winding direction of principal axis, therefore the wireline reel can be increased The magnetic field intensity in direction.
In addition, RFIC elements 14, PIC elements 22, coil-conductor CIL11, CIL12 have above-mentioned position relationship, therefore When overlooking substrate 12, RFIC elements 14 and PIC elements 22 are clipped by coil-conductor CIL11 and CIL12 respectively, and by road Line RT11 and RT12 are clipped.Thus, the coupling amount of each coil-conductor can be reduced, and realizes the interarea small size of substrate 12 Change.
The equivalent circuit of read-write equipment 10 with said structure is shown in Fig. 5.Inductor L1 and L2 are led with coil respectively Body CIL11 and CIL12 are corresponded to.Capacitor C1 corresponds to the chip capacitor being installed on together with RFIC elements 14 on substrate 12 (not shown).Inductor L1 and inductor L2 are connected in series, capacitor C1 connections connected in parallel, so as to form LC resonance circuit. One end of inductor L1 is connected to the one end for the RFIC chip 14c for being arranged at RFIC elements 14.The other end connection of inductor L1 To one end of inductor L2, the other end of inductor L2 is connected to the other end of RFIC chip 14c.The frequency band of signal of communication is by wrapping The resonance circuit of the internal capacitance of L1 containing inductor~L2, capacitor C1 and RFIC chip 14c provides.
With reference to Fig. 6, read-write equipment 10, which is configured at, is provided with track 301,302 and by track 301,302 separated separation The underface of the track 30 of wall 30w, is connected via outside wiring 26 with controller 28.An in fig. 6, it is illustrated that part for track 30 Section, the lower surface of track 30 of another interarea (upper surface) of substrate 12 with illustrating are opposite.Route RT11 and track 301 are right Should, route RT12 is corresponding with track 302.Route RT11 and RT12 have identical width and extend parallel in the plane. As shown in Fig. 7 (A), opening OP11 and OP12 overlook when it is overlapping with route RT11 and RT12 respectively, the major axis for the OP11 that is open and The major axis of opening OP12 extends respectively along route RT11 and RT12.
Other read-write equipments 10 ' and route formed with single coil-conductor on the interarea of substrate are shown in Fig. 7 (B) The position relationship of RT11 and RT12.By compared with the read-write equipment 10 ', in read-write equipment 10, loop aerial 16 The region of magnetic field intensity increase is respectively aligned to each route RT11 and RT12, therefore is not likely to produce blank spot.
Shown in composition such as Fig. 8 (A) and Fig. 8 (B) of the running gear 40 travelled on route RT11 or RT12.It is specific and Speech, running gear 40 is minicar, its overall width width more respective than route RT11 and RT12 is slightly smaller.In addition, in running gear 40 Lower surface in front of be equipped with RFID tag 42.RFID tag 42 by label RFIC chip, be connected to the lines of the RFIC labels The ring shaped conductor 44 of round is formed.It is arranged at the wireline reel and running gear 40 of the ring shaped conductor 44 of the coiled type of RFID tag 42 Lower surface it is orthogonal.
RFID tag 42 is equipped on to the lower surface of running gear 40, read-write equipment 10 is on the other hand configured at track 30 Underface so that communication distance between RFID tag 42 and read-write equipment 10 shortens.In this embodiment, by such as above-mentioned The RFID tag 42 of setting forms RFID system with read-write equipment 10.Alternatively, it is also possible to which read-write equipment 10 is embedded to track 30 It is interior.
Running gear 40 on racing bicycle road after assembling as shown in figure 9, travel.If running gear 40 passes through read-write The surface of device 10, then carry out wireless communication between read-write equipment 10 and RFID tag 42.Preserved in RFID tag 42 The identification information of running gear 40, the identification information is read by read-write equipment 10.As described above, opening OP11 major axis along Route RT11 extends, and the major axis for the OP12 that is open extends along route RT12.Accordingly, it is capable to reduce the speed mistake due to running gear 40 Cause the possibility for reading identification information failure soon.
The identification information read is provided to controller 28 via outside wiring 26.Controller 28 is based on the identification provided Information, by the pitch of the laps such as number of turns presentation of information in display panel 28a.In addition, display mode according to operation button 28b, 28b ... Operate to change.
It was found from above-mentioned explanation, the running gear 40 for being equipped with RFID tag 42 is separating the route of predetermined distance extension Travelled respectively on RT11 and RT12.Read-write equipment 10 has the substrate 12 formed with loop aerial 16 on interarea and is marked with RFID Label 42 carry out wireless communication.Loop aerial 16, which includes respectively, has opening OP11 and OP12 and the coil-conductor being connected in series CIL11 and CIL12, opening OP11 and OP12 have roughly the same area, distance and route between the OP11 and OP12 that is open Distance between RT11 and RT12 is basically identical.
Loop aerial 16 includes the coil-conductor CIL11 and CIL12 being connected in series, therefore the magnetic field of loop aerial 16 is strong Degree partly increases in coil-conductor CIL11 and the CIL12 each opening OP11 and OP12 having respectively.Herein, be open OP11 And OP12 has roughly the same area, the distance between the OP11 and OP12 that is open and the distance basic one between route RT11 and RT12 Cause.
Thus, weighed respectively with route RT11 and RT12 by the way that substrate 12 is configured to the opening OP11 and OP12 when overlooking It is folded, so as between the RFID labels 42 and read-write equipment 10 of the running gear 40 travelled along route RT11 and RT12 It is easy and reliably carry out wireless communication.
In addition, in this embodiment it is that premised on track 30 formed with 2 routes RT11 and RT12, will be single Read-write equipment 10 be configured at the underface of track 30.(with reference to Fig. 6) still, is being used formed with 4 route RT11~RT14 Track 30 ' come in the case of replacing track 30, it is necessary to which 2 10,10 main points according to Figure 10 of read-write equipment are configured at The underface of track 30 ', or the single read-write equipment (not shown) formed with 4 coil-conductors is configured at track 30 ' Underface.
In addition, in this embodiment, read-write equipment 10 is configured to the underface of track 30 so that opening OP1 and OP2 exists It is overlapping with route RT11 and RT12 during vertical view.(with reference to Fig. 9) in addition it is also possible to by read-write equipment 10 be configured at track 30 just under Side so that the crosspoint that route RT11 and RT12 intersect is overlapping with opening OP11 or OP12.(with reference to Figure 11)
Moreover, in this embodiment, one in substrate 12 of the respective winding number of turn of coil-conductor CIL11 and CIL12 Interarea side is 1 circle, is 1 circle in another interarea side of substrate 12 (with reference to Fig. 2 or Fig. 3).But another interarea of substrate 12 With the lower surface of track 30 so that can also make another interarea side of substrate 12 the winding number of turn be more than substrate 12 a master The winding number of turn of surface side.In this case, loop aerial 16 and coil-conductor CIL11 and CIL12 being connected in series are formed As formed as shown in Figure 12 (A) and Figure 12 (B).
According to Figure 12 (A) and Figure 12 (B), ring shaped conductor 16c ', 16d ' and cloth are formed on another interarea of substrate 12 Line conductor 16e ' replaces ring shaped conductor 16c, 16d and wiring conductor 16e wherein, passes through ring shaped conductor 16a, 16c ' and interlayer Connect conductor 18a and form coil-conductor CIL11, pass through ring shaped conductor 16b, 16d ' and interlayer connection conductor 18b formation coils Conductor CIL12.
Coil-conductor CIL11 includes the coil sections conductor CIL11a that the winding number of turn is 1 circle and the portion that the winding number of turn is 2 circles Sub-coil conductor CIL11b, coil-conductor CIL12 include coil sections conductor CIL12a and the winding number of turn of the winding number of turn for 1 circle For the coil sections conductor CIL12b of 2 circles.In addition, coil sections conductor CIL11a and CIL12a are formed at a master of substrate 12 Face, coil sections conductor CIL11b and CIL12b are formed at another interarea of substrate 12.
By using above-mentioned antenna structure, the magnetic field intensity of another interarea side of substrate 12 is more than one of substrate 12 The magnetic field intensity of interarea side, becomes traveling lane side by another interarea side for being configured to substrate 12, so as to improve from setting The RFID tag 42 for being placed in running gear 40 reads the accuracy of identification information.
In the above-described embodiments, the HF frequency band RFID systems of the frequency band to make use of HF frequency bands are illustrated, but It can be the RFID system that make use of other frequency bands such as UHF frequency band.
Label declaration
10 read-write equipments；
12 substrates；
14 RFIC elements (process circuit)；
16 loop aerials；
22 PIC elements (process circuit)；
OP1~OP2, OP11~OP12 are open；
CIL1~CIL2, CIL11~CIL12 coil-conductors；
RT1~RT2, RT11~RT14 routes；
40 running gears；
42 RFID tags.

Claims (10)

  1. A kind of 1. RFID system, it is characterised in that including：
    The RFID tag set on the running gear travelled respectively on a plurality of route for separating predetermined distance extension；And
    The read-write equipment of wireless communication is carried out with substrate and with the RFID tag, which possesses interarea and in the master There is the loop aerial of wireline reel in the normal direction in face,
    The loop aerial, which includes respectively, has multiple multiple coil-conductors for being open and being connected in series.
  2. 2. RFID system as claimed in claim 1, it is characterised in that the multiple opening has equal area,
    Distance between the multiple opening is consistent with the predetermined distance.
  3. 3. RFID system as claimed in claim 1, it is characterised in that
    Configure a plurality of Route Plane,
    It is overlapping with a plurality of route difference that the substrate is configured to the multiple opening when overlooking.
  4. 4. RFID system as claimed in claim 2, it is characterised in that
    Configure a plurality of Route Plane,
    It is overlapping with a plurality of route difference that the substrate is configured to the multiple opening when overlooking.
  5. 5. RFID system as claimed in claim 4, it is characterised in that
    The multiple opening has major axis and short axle respectively,
    The substrate is configured to extending direction of the major axis along a plurality of route.
  6. 6. RFID system as described in claim 4 or 5, it is characterised in that
    The substrate is configured at the underface of a plurality of route.
  7. 7. RFID system as described in claim 4 or 5, it is characterised in that
    The multiple coil-conductor includes respectively：It is formed on an interarea of the substrate and with the first volume around the number of turn Part I coil-conductor and be formed on another interarea of the substrate and be more than the first volume around the number of turn Volume Two around the number of turn Part II coil-conductor,
    It is opposite with a plurality of route that the substrate is configured to another described interarea.
  8. 8. RFID system as described in claim 4 or 5, it is characterised in that
    The read-write equipment also has the process circuit that is handled RF signals, the process circuit with when overlooking by described more The mode that a coil-conductor is clamped is installed on the substrate.
  9. A kind of 9. read-write equipment, it is characterised in that
    With the substrate formed with the loop aerial for carrying out wireless communication with RFID tag on interarea, which sets It is placed on the running gear travelled respectively on a plurality of route for separating predetermined distance extension,
    The loop aerial, which includes respectively, has multiple multiple coil-conductors for being open and being connected in series.
  10. 10. read-write equipment as claimed in claim 9, it is characterised in that
    The multiple opening substrate has equal area,
    Distance between the multiple opening is consistent with the predetermined distance.
CN201590001133.9U 2014-11-27 2015-10-30 RFID system and read-write equipment Active CN207319242U (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2014-239823 2014-11-27
JP2014239823 2014-11-27
PCT/JP2015/080715 WO2016084552A1 (en) 2014-11-27 2015-10-30 Rfid system and reader-writer device

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Publication Number Publication Date
CN207319242U true CN207319242U (en) 2018-05-04

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CN (1) CN207319242U (en)
WO (1) WO2016084552A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0512291A (en) * 1991-06-28 1993-01-22 Toshiba Corp Radio card system
JP4548712B2 (en) * 2004-06-23 2010-09-22 能美防災株式会社 Sticker with IC tag
JP2006072692A (en) * 2004-09-02 2006-03-16 Matsushita Electric Ind Co Ltd Information reading system and information reader
JP5630166B2 (en) * 2010-09-09 2014-11-26 株式会社村田製作所 Wireless IC tag and RFID system
US8763914B2 (en) * 2012-01-17 2014-07-01 On Track Innovations Ltd. Decoupled contactless bi-directional systems and methods

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WO2016084552A1 (en) 2016-06-02
JPWO2016084552A1 (en) 2017-04-27

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