WO2017150650A1 - Guide d'ondes - Google Patents

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Publication number
WO2017150650A1
WO2017150650A1 PCT/JP2017/008219 JP2017008219W WO2017150650A1 WO 2017150650 A1 WO2017150650 A1 WO 2017150650A1 JP 2017008219 W JP2017008219 W JP 2017008219W WO 2017150650 A1 WO2017150650 A1 WO 2017150650A1
Authority
WO
WIPO (PCT)
Prior art keywords
waveguide element
waveguide
writer
reader
tag
Prior art date
Application number
PCT/JP2017/008219
Other languages
English (en)
Japanese (ja)
Inventor
詩朗 杉浦
達次 庭田
準登 鍋島
Original Assignee
株式会社フェニックスソリューション
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社フェニックスソリューション filed Critical 株式会社フェニックスソリューション
Publication of WO2017150650A1 publication Critical patent/WO2017150650A1/fr

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Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • H01Q21/10—Collinear arrangements of substantially straight elongated conductive units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/48—Transceivers

Definitions

  • the present invention relates to a waveguide that enables communication even when a conductor exists between a reader / writer and an RF tag.
  • RFID Radio Frequency Identification
  • the RF tag used in the RFID system contains an antenna and an IC chip.
  • the carrier wave transmitted from the reader / writer antenna is received by the RF tag antenna and the identification data recorded on the IC chip is reflected. It communicates in a non-contact manner by returning it to the reader / writer on the wave.
  • Patent Document 1 discloses a technique for increasing a reading range by increasing a gain of an antenna by arranging a reflector or a waveguide.
  • Patent Document 2 discloses a technology that enables communication between an RF tag and a reader / writer inside a metal archive.
  • the prior art has the following problems.
  • a conductor such as a metal exists between the reader / writer and the RF tag
  • the technique of Patent Document 1 described above makes it impossible to communicate because the radio wave is reflected by the conductor.
  • the technique of Patent Document 2 is applicable to a case where both the reader / writer and the RF tag are present inside a library surrounded by metal, and a metal is interposed between the reader / writer and the RF tag. It is impossible to communicate in the presence of conductors such as.
  • an object of the present invention is to provide a waveguide capable of communication even when a conductor exists between a reader / writer and an RF tag.
  • the director of the present invention is a waveguide used when there is a shielding conductor that shields radio waves between the reader / writer and the RF tag.
  • the electrical length is The first waveguide element and the second waveguide element of ⁇ / 4, respectively, and a transmission line that connects one end of the first waveguide element and the second waveguide element.
  • at least one of the first waveguide element and the second waveguide element is covered with an insulating material.
  • one of the first waveguide element and the second waveguide element is provided with a handle made of an insulating material.
  • the electrical length of the first waveguide element and the second waveguide element is not ⁇ / 4, but is any one of ⁇ / 2, 3 ⁇ / 4, and 5 ⁇ / 8.
  • the transmission line is positioned inside a through-hole provided in the shielding conductor, and the first waveguide element is exposed to a space on the side where the reader / writer exists, out of two spaces separated by the shielding conductor.
  • the second waveguide element is used in a state where the second waveguide element is exposed in a space on the side where the RF tag exists.
  • a waveguide is inserted into the through hole of the shielding conductor, and the first waveguide element and the second waveguide element are arranged in two spaces separated by the shielding conductor.
  • the radio wave transmitted from the reader / writer is received by the first waveguide element and transmitted by the second waveguide element, so that all radio waves are not reflected by the shielding conductor as in the prior art.
  • the first waveguide element and the second waveguide element are covered with an insulating material, communication can be performed without being adversely affected by a conductor such as a metal around the waveguide element.
  • FIG. 1A is a perspective view schematically showing the arrangement of a director, an RFID system, and a shielding conductor according to the first embodiment
  • the director 10 of the present invention is in a situation where a shielding conductor 102 that shields the radio wave W exists between the reader / writer 100 and the RF tag 101. It is what you use.
  • An example of the shielding conductor 102 is a stainless steel packing box 103 of a truck.
  • the RF tag 101 is attached to each of the plurality of packages 104 in the packing box 103, and the reader / writer 100 is used to communicate with each RF tag 101 from the outside of the packing box 103.
  • the RF tag 101 can be applied to both a passive type and an active type.
  • the reader / writer 100 and the RF tag 101 may be the same as those used in a well-known RFID system, so that the description thereof will be omitted.
  • the waveguide 10 that is a feature of the present invention will be mainly described. .
  • the director 10 is generally composed of a first waveguide element 20, a second waveguide element 30, and a transmission line 40.
  • the first waveguide element 20 is a rod-shaped member.
  • the electrical length of the first waveguide element 20 is adjusted to be ⁇ / 4.
  • the second waveguide element 30 is also a rod-like member, and is adjusted so that its electrical length is ⁇ / 4.
  • the transmission line 40 is a member that connects one ends of the first waveguide element 20 and the second waveguide element 30 to each other. In the present embodiment, a coaxial cable is used as the transmission line 40.
  • Coaxial cable covers the inner conductor made of copper wire with an insulator made of polyethylene, etc., further covers the insulator with an outer conductor made of braided copper wire, etc., and surrounds the outer conductor with polyvinyl chloride, etc.
  • the structure is covered with a protective layer.
  • As the transmission line 40 a known line such as a strip line, a microstrip line, and a parallel two-conductor line can be used in addition to the coaxial cable.
  • the first waveguide element 20 and the second waveguide element 30 are electrically connected to the transmission line 40.
  • each of the first waveguide element 20 and the second waveguide element 30 is covered with an insulating material 50.
  • the shielding conductor 102 such as a metal is in contact with each waveguide element 20, 30 or is located in the vicinity of each waveguide element 20, 30 It becomes possible to communicate stably.
  • Only one of the first waveguide element 20 and the second waveguide element 30 may be covered with the insulating material 50, or both may not be covered with the insulating material 50.
  • the usage method and operation of the director 10 will be described. It inserts into the through hole 102a of the shielding conductor 102 from the end side of the second waveguide element 30, and stops when the transmission line 40 is located inside the through hole 102a. Since the surface of the transmission line 40 is covered with a protective layer, even if the transmission line 40 is in contact with the inner surface of the through hole 102a, the communication is not adversely affected.
  • the radio wave W transmitted from the reader / writer 100 is first received by the first waveguide element 20 and transmitted from the second waveguide element 30 through the transmission line 40. Since the shielding conductor 102 exists between the first waveguide element 20 and the second waveguide element 30, the second waveguide element 30 does not directly receive the radio wave W transmitted from the reader / writer 100. .
  • the radio wave W transmitted from the second waveguide element 30 is received by the RF tag 101, and the RF tag 101 transmits the radio wave W as a reflected wave.
  • the radio wave W transmitted from the second waveguide element 30 is first received by the second waveguide element 30 and transmitted from the first waveguide element 20 through the transmission line 40.
  • the first waveguide element 20 does not directly receive the radio wave W transmitted from the RF tag 101.
  • the radio wave W transmitted from the first waveguide element 20 is received by the reader / writer 100, thereby completing the communication.
  • the electrical length of the first waveguide element 20 and the second waveguide element 30 is ⁇ / 4. However, the electrical length is not limited to this, and may be any one of ⁇ / 2, 3 ⁇ / 4, and 5 ⁇ / 8. Good.
  • the first waveguide element 20 does not necessarily have a rod shape, and may be, for example, a surface shape, a coil shape, or a meander shape.
  • the second waveguide element 20 may have, for example, a surface shape, a coil shape, or a meander shape in addition to the rod shape within a range that can be inserted into the through hole 102a.
  • a handle 60 made of an insulating material 50 may be formed on the first waveguide element 20.
  • the handle 60 is provided with a strap attachment hole 61, and a stopper 60a is provided on the end face of the handle.
  • the provision of the handle 60 improves the workability for the user of the director 10, and the provision of the strap attachment hole 61 improves the portability.
  • the dimension of the stopper 60a is made larger than the dimension of the through hole 102a, the stopper 60a may be abutted against the surface of the shielding conductor 102 when the waveguide 10 is inserted into the through hole 102a. improves.
  • FIG. 1 As shown in FIG.
  • a stick-like handle 62 may be used.
  • the handle 62 By making the handle 62 into a stick shape, when the shielding conductor 102 is at the user's foot (for example, when the shielding conductor 102 is a manhole cover), the user is standing in a bent position and the second guide Since the wave element 30 can be inserted into the through hole 102a, the physical burden on the user can be reduced.
  • the waveguide 10 may be attached to the tip of an L-shaped long member 63. By attaching the director 10 to the L-shaped long member 63, the second waveguide element can be used without using a ladder or the like even when the shielding conductor 102 is in a position that is out of reach of the user's head or underground. 30 can be inserted into the through hole 102a.
  • the director 70 of the present embodiment is characterized in that it is applied to a manhole 200.
  • the RF tag 101 is attached to the back surface of the metal lid 201 of the manhole 200.
  • the waveguide 10 is inserted into the key hole 202 using the opening / closing key hole 202 formed in the lid 201 as a through hole.
  • the RF tag 101 is attached to the back surface of the lid 201, communication may not be possible depending on the influence of the weather or the embedded environment of the manhole 200.
  • W reaches the back side of lid 201 and communication is possible.
  • the present invention relates to a waveguide that enables communication even when a conductor exists between a reader / writer and an RF tag, and has industrial applicability.
  • Radio wave 10 director 20 First waveguide element 30 Second waveguide element 40 Transmission line 50 Insulation material 60 handle 60a stopper 61 Strap hole 62 handle 63 Long member 70 director 100 reader / writer 101 RF tag 102a Through hole 102 Shielding conductor 103 Packing box 104 luggage 200 manhole 201 lid 202 keyhole

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Computer Hardware Design (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

La présente invention concerne un guide d'ondes qui permet une communication même lorsqu'un conducteur est présent entre un dispositif de lecture-d'écriture et une étiquette RF. Le guide d'ondes selon la présente invention est un guide d'ondes (10) utilisé lorsqu'un conducteur de protection (102) qui protège des ondes électromagnétiques (W), est présent entre un dispositif de lecture-d'écriture (100) et une étiquette RF (101), le guide d'ondes étant pourvu d'un premier élément de guide d'ondes (20) et d'un second élément de guide d'ondes (30) qui présentent chacun des longueurs électriques de λ/4, λ étant la longueur d'onde des ondes électromagnétiques, et un trajet de transmission (40) dans lequel une extrémité du premier élément de guide d'ondes et du second élément de guide d'ondes sont reliées l'une à l'autre. Le guide d'ondes est inséré dans un trou traversant (102a) dans le conducteur de protection et le premier élément de guide d'ondes ainsi que le second élément de guide d'ondes sont disposés dans deux espaces définis par le conducteur de protection. Les ondes électromagnétiques envoyées depuis le dispositif de lecture-d'écriture sont reçues par le premier élément de guide d'ondes et émises par le second élément de guide d'ondes, ce qui empêche l'apparition classique d'une réflexion de toutes les ondes électromagnétiques par le conducteur de protection, et ce qui permet une communication entre le dispositif de lecture-d'écriture et l'étiquette RF.
PCT/JP2017/008219 2016-03-03 2017-03-02 Guide d'ondes WO2017150650A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016040745A JP6650641B2 (ja) 2016-03-03 2016-03-03 導波器
JP2016-040745 2016-03-03

Publications (1)

Publication Number Publication Date
WO2017150650A1 true WO2017150650A1 (fr) 2017-09-08

Family

ID=59743900

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/008219 WO2017150650A1 (fr) 2016-03-03 2017-03-02 Guide d'ondes

Country Status (2)

Country Link
JP (1) JP6650641B2 (fr)
WO (1) WO2017150650A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019093425A1 (fr) * 2017-11-09 2019-05-16 株式会社村田製作所 Procédé de lecture d'étiquette rfid, système de lecture d'étiquette rfid, dispositif de lecture d'étiquette rfid, et article
CN112417905A (zh) * 2019-08-23 2021-02-26 菜鸟智能物流控股有限公司 射频标签识别系统及方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020075555A1 (fr) * 2018-10-12 2020-04-16 株式会社フェニックスソリューション Dispositif de lecture de structure, système de lecture de structure
JP7207355B2 (ja) * 2020-03-13 2023-01-18 株式会社豊田中央研究所 無線送電システム

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0848337A (ja) * 1994-08-02 1996-02-20 Shinko Electric Co Ltd コンテナ内管理装置
US20030214774A1 (en) * 2002-05-06 2003-11-20 Commissariat A L'energie Atomique Device for transmission of electromagnetic radiation through a wall
US20070001809A1 (en) * 2005-05-02 2007-01-04 Intermec Ip Corp. Method and system for reading objects having radio frequency identification (RFID) tags inside enclosures
JP2008066841A (ja) * 2006-09-05 2008-03-21 Yokohama National Univ 通信装置、通信用シート、および通信用ストリップ
JP2008107888A (ja) * 2006-10-23 2008-05-08 Internatl Business Mach Corp <Ibm> Ｒｆｉｄタグ付物品収容ケースおよびｒｆｉｄシステム
JP2009501933A (ja) * 2005-07-21 2009-01-22 ローズマウント タンク レーダー アクチボラゲット 誘電体コネクタ、ｄｃ絶縁貫通接続、および電子装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522013A (ja) * 1991-07-16 1993-01-29 Murata Mfg Co Ltd 誘電体基体型アンテナ
JP3933148B2 (ja) * 2004-06-04 2007-06-20 ソニー株式会社 イヤホンアンテナ及びこのイヤホンアンテナを備えた携帯型無線機
US7629943B2 (en) * 2007-02-14 2009-12-08 Keystone Technology Solutions, Llc Electronic monitoring systems, shipment container monitoring systems and methods of monitoring a shipment in a container
DE102014204495B4 (de) * 2014-03-12 2016-02-25 Schaeffler Technologies AG & Co. KG Passiver Repeater zur Weiterleitung von Funksignalen, Funksystem, Fahrzeug und Lager mit einem passiven Repeater und Verwendung eines passiven Repeaters

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0848337A (ja) * 1994-08-02 1996-02-20 Shinko Electric Co Ltd コンテナ内管理装置
US20030214774A1 (en) * 2002-05-06 2003-11-20 Commissariat A L'energie Atomique Device for transmission of electromagnetic radiation through a wall
US20070001809A1 (en) * 2005-05-02 2007-01-04 Intermec Ip Corp. Method and system for reading objects having radio frequency identification (RFID) tags inside enclosures
JP2009501933A (ja) * 2005-07-21 2009-01-22 ローズマウント タンク レーダー アクチボラゲット 誘電体コネクタ、ｄｃ絶縁貫通接続、および電子装置
JP2008066841A (ja) * 2006-09-05 2008-03-21 Yokohama National Univ 通信装置、通信用シート、および通信用ストリップ
JP2008107888A (ja) * 2006-10-23 2008-05-08 Internatl Business Mach Corp <Ibm> Ｒｆｉｄタグ付物品収容ケースおよびｒｆｉｄシステム

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019093425A1 (fr) * 2017-11-09 2019-05-16 株式会社村田製作所 Procédé de lecture d'étiquette rfid, système de lecture d'étiquette rfid, dispositif de lecture d'étiquette rfid, et article
JPWO2019093425A1 (ja) * 2017-11-09 2020-01-23 株式会社村田製作所 Ｒｆｉｄタグの読み取り方法、ｒｆｉｄタグ読み取りシステム、ｒｆｉｄタグのリーダ装置、および、物品
US10956691B2 (en) 2017-11-09 2021-03-23 Murata Manufacturing Co., Ltd. RFID tag reading method, RFID tag reading system, RFID tag reader device, and article
CN112417905A (zh) * 2019-08-23 2021-02-26 菜鸟智能物流控股有限公司 射频标签识别系统及方法
CN112417905B (zh) * 2019-08-23 2024-04-02 菜鸟智能物流控股有限公司 射频标签识别系统及方法

Also Published As

Publication number Publication date
JP2017158073A (ja) 2017-09-07
JP6650641B2 (ja) 2020-02-19

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