WO2007129569A1 - Rfidタグの取り付け構造及び検知方法 - Google Patents
Rfidタグの取り付け構造及び検知方法 Download PDFInfo
- Publication number
- WO2007129569A1 WO2007129569A1 PCT/JP2007/058850 JP2007058850W WO2007129569A1 WO 2007129569 A1 WO2007129569 A1 WO 2007129569A1 JP 2007058850 W JP2007058850 W JP 2007058850W WO 2007129569 A1 WO2007129569 A1 WO 2007129569A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylindrical metal
- rfid tag
- metal body
- hollow cylindrical
- rfid
- Prior art date
Links
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
-
- 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
- G06K19/04—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the shape
- G06K19/041—Constructional details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
- B21C51/005—Marking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/182—Identification means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
-
- 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
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
Definitions
- the present invention relates to a mounting structure of an RFID tag for identifying a hollow cylindrical metal body to the hollow cylindrical metal body and a method for detecting the attached RFID tag, and in particular, prevents the RFI D tag from being damaged.
- the present invention relates to an RFID tag mounting structure and a detection method capable of improving the RFID tag detection accuracy.
- Fig. 6 shows the structure for attaching an RFID tag to a metal body introduced in Patent Document 1.
- a spacer 230 of 1 mm thickness is attached to the outside of the metal body 1 (left side in the figure), and the RFID tag 11 is attached to the spacer 230 via the adhesive 23 !.
- the lower antenna pattern 112 in the figure of the RFID tag 11 is in contact with the container-like metal body 1 through the adhesive 23, but the upper antenna pattern 111 in the figure of the R FID tag 11 has the adhesive material 23 attached. Spacer 230 above.
- the resonance frequency of the antenna does not deviate greatly and can respond to radio waves from the reader.
- Patent Document 1 Japanese Published Patent Publication: 2002-259934
- Damage is particularly likely to occur when a large number of metal objects are stacked and stored.
- the strength of a heavy steel wire coil with a metal strength of 120cm in diameter, 140cm in length and 2t in weight may be stacked in a warehouse, and the RFID tags sandwiched between them can be easily destroyed.
- the present invention has been made in view of the above circumstances, and its purpose is that the RFID tag is arranged so that it can be easily detected by an external RFI D reader, and the RFID tag is not damaged under normal specifications.
- An RFID tag mounting structure and an RFID tag detection method are provided.
- the present invention is a structure for attaching an RFID tag to a hollow cylindrical metal body, and the RFID tag is attached to the inside of the hollow cylindrical metal body as a premise.
- the RFID tag has a direction in which the electric field of the RFID tag is generated along the circumference of the hollow cylindrical metal body, and a space between the metal surface and the inside of the hollow cylindrical metal body via a spacer. It is attached.
- a magnetic material As the spacer, a magnetic material, a dielectric material, or the like can be used.
- dielectric materials examples include low dielectric constants such as foamed polyethylene and polystyrene, medium dielectric constants such as polyethylene, styrene and epoxy, and high dielectric constants such as ceramics, barium titanate, and so on.
- Examples of magnetic materials include ferrite, iron, and nickel.
- a metal such as iron or nickel as the magnetic material
- a resin such as epoxy
- low dielectric constants have the advantage of being lightweight and inexpensive.
- the use of a high dielectric constant has the advantage that the wavelength of the radio wave inside the dielectric is inversely proportional to the square root of the dielectric constant, so that it can be made smaller if the wavelength is the same.
- Magnetic materials have the advantage that they can be made thin and small, but they are often used at relatively low frequencies because they are affected by eddy current loss.
- the RFID tag is attached to the metal surface via a spacer in this way, a communication circuit can be efficiently configured with the external antenna.
- the RFID reader antenna for RFID tag detection as described above is installed according to the circumferential direction of the hollow cylindrical metal body, or the direction of the center axis force or deviation.
- the RFID tag When installed in the circumferential direction, the RFID tag can be detected with high detection accuracy when the RFID reader antenna is outside the hollow cylindrical metal body, as will be described later.
- the installation direction of the RFID tag is the direction of the central axis of the hollow cylindrical metal body, the RFID tag follows the direction of the electric field of the standing wave of the radio wave inside the cylinder generated by the radio wave from the RFI D reader antenna. Antenna patterns are arranged. For this reason, when the RFID reader antenna is inserted into the hollow cylindrical metal body until it is directly above the RFID tag, the R FID tag can be detected efficiently. In this case, it is convenient when multiple RFID tags are detected in sequence.
- a typical example of the hollow cylindrical metal body is a wire coil.
- the hollow cylindrical metal body is a wire coil
- the wires rub against each other or change their position, causing collisions. If an RFID tag is attached to the wire rod, the RFID tag may be damaged.
- the hoop is strong because it is steel, and the hoop itself does not come into contact with or collide with the wire! This is because there is no inconvenience that the RFID tag is damaged at times.
- a method for detecting an RFID tag attached to the inside of a hollow cylindrical metal body includes an RFID reader.
- a method for detecting an RFID tag is characterized in that the RFID tag is detected by inserting an antenna into the hollow cylindrical metal body.
- the RFID tag detection accuracy is dramatically improved by inserting the RFID antenna into the hollow cylindrical metal body. Furthermore, when detecting RFID tags continuously for a plurality of hollow cylindrical metal bodies, a plurality of hollow cylindrical metal bodies with RFID tags attached inside are arranged coaxially, and the above RFID reader antenna is hollow. An efficient method is to insert into a cylindrical metal body and detect the RFID tags in the order in which the hollow cylindrical metal bodies are arranged.
- the RFID tag mounting structure and the RFID are arranged so that they can be easily detected by an external RFID reader, and the R FID tag is not damaged under normal specifications.
- a tag detection method is provided.
- FIG. 1 is a schematic view showing a configuration of the present invention when an RFID tag is attached inside a cylindrical metal body in a direction along a circumferential direction.
- FIG. 2 An overview showing the configuration of the present invention when an RFID tag is attached inside a cylindrical metal body in parallel to the central axis.
- FIG. 3 is a schematic view showing a situation in which the RFID tag having the structure of the present invention is irradiated with radio waves from the outside of the cylindrical metal body and irradiated by the RFID reader antenna.
- FIG. 4 An overview of the situation in which a crane arm with an RFID reader antenna attached to the tip is inserted into multiple coaxial cylindrical metal bodies and RFID tags are detected in sequence.
- FIG. 5 A photograph replacing a drawing in which an RFID tag is mounted on a hoop inside a steel wire coil bound by four hoops via a spacer.
- FIG. 6 is a cross-sectional view showing a mounting state of the RFID tag of the conventional example.
- Fig. 1 is a schematic view showing the configuration of the present invention when an RFID tag is attached inside the cylindrical metal body in a direction along the circumferential direction
- Fig. 2 shows the RFID tag inside the cylindrical metal body
- Fig. 3 shows an overview of the configuration of the present invention when mounted parallel to the central axis.
- Fig. 3 shows the situation where the RFID tag antenna radio wave is irradiated from the outside of the cylindrical metal object
- Fig. 4 is an overview diagram showing the situation in which a crane arm with an RFID reader antenna attached to the tip is inserted into a plurality of coaxial cylindrical metal bodies, and RFID tags are detected in order.
- Fig. 6 is a photograph of an RFID tag mounted on a hoop inside a steel wire coil bound by four hoops via a spacer
- Fig. 6 is a cross-sectional view showing the mounting state of the RFID tag of the conventional example. It is.
- FIG. 1 is a configuration diagram of an RFID tag mounting structure according to an embodiment of the present invention.
- the RFID tag 11 is attached so that the longitudinal direction (the direction of the electric field of the emitted radio wave) is along the circumferential direction of the hollow cylindrical metal body 4.
- the RFID tag 11 is attached in the circumferential direction of the hollow cylindrical metal body 4, but it may be attached in the direction along the central axis of the hollow cylindrical metal body 4 as shown in FIG. .
- FIG. 2 is a configuration diagram showing another mounting structure of the RFID tag according to another embodiment of the present invention.
- the RFID tag 11 is placed so that its longitudinal direction (the direction of the electric field of the radiated radio wave) is parallel to the central axis, with a spacer 230 made of a low dielectric constant material such as Is attached.
- a low dielectric constant material is used as the spacer 230, but other materials may be magnetic materials.
- the RFID reader 5 is placed on the left side of the hollow cylindrical metal body 4 and the RFID reader antenna 7 and the RFID reader 5 are connected by the coaxial cable 6.
- the RFID tag 11 in the hollow cylindrical metal body 4 is radiated from the outside to the RFID tag 11 in the hollow cylindrical metal body 4.
- the electric field of the radio wave radiated from the RFID reader antenna 7 is perpendicular to the traveling direction of the radio wave, and the traveling direction is parallel to the central axis of the hollow cylindrical metal body 4.
- the electric field inside the metallic body 4 is generated in a direction perpendicular to the central axis, that is, in the circumferential direction and the radial direction.
- the RFID tag 11 is directly attached to the hollow cylindrical metal body 4 without the spacer 230, the RFID tag 11 can be attached even if the RFID reader antenna 7 is placed inside the hollow cylindrical metal body 4. I could't recognize it.
- the RFID tag 11 can be easily recognized by the external RFID reader antenna 7.
- FIG. 4 is a diagram illustrating a method for recognizing an RFID tag according to another embodiment of the present invention.
- a plurality of hollow cylindrical metal bodies 4 are arranged so that their central axes coincide with each other, and RFID tags 11 are radiated in the longitudinal direction (radiated in the same manner as in FIG. It is installed so that the direction of the electric field is parallel to the central axis.
- a long, thin RFID reader antenna 7 protrudes from the tip of the 4m long crane arm 8 for moving the wire coil, and transports the right wire coil (hollow cylindrical metal body 4) all at once. In order to do this, it moves from the left side to the right side and is inserted into the center of multiple wire coils.
- the RFID reader antenna 7 is an elongate antenna such as a UHF band dipole antenna, for example.
- the direction of the electric field of the radiated radio wave is parallel to the central axis, and the radial direction of the circle is centered on the antenna. Radio waves are radiated uniformly.
- the RFID tag 11 inside the hollow cylindrical metal body 4 is mounted in the same way as in Fig. 2 so that the longitudinal direction (direction of the electric field of the emitted radio wave) is parallel to the central axis. Therefore, it does not react to radio waves from an external RFID reader. As a result, when the RF ID reader antenna 7 inserted inside is directly above the RFID tag 11, the direction of the electric field of the radio wave can be detected and matched.
- the RFID tag 11 When the RFID tag 11 is arranged as shown in Fig. 2, the RFID tag 11 is detected only when the RFID reader antenna 7 comes directly above the RFID tag 11, so the crane arm 8 is inserted. RFID tags 11 can be detected one by one in the order in which they are placed. For this reason, there is a significant advantage if it is possible to recognize in which order the wire coils with RFID tags 11 are arranged on the crane arm 8 for moving the wire coils.
- Fig. 5 is a photograph showing a state where an RFID tag is mounted on a wire coil.
- a steel wire coil 4 which is bound by four steel binding hoops 9 having a width of 32 mm and a thickness of 0.7 mm.
- a spacer 130 made of polyethylene foam with a thickness of 13 mm is bonded to the inside 30 cm of the bundling hoop 9, and a plastic card type RFI D tag 11 made by Fujitsu Frontic is parallel to the central axis. It is attached.
- RFID tags may be pinched between wires and damaged or torn off. However, if attached to a steel binding hoop 9, there is no risk of damage from the wire.
- the RFID tag is arranged inside the hollow cylindrical metal body through the spacer so that the longitudinal direction thereof is along the circumference. Therefore, damage to the RFID tag can be avoided and the RFID tag can be easily detected from an external reader.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Near-Field Transmission Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/226,877 US20090231100A1 (en) | 2006-05-01 | 2007-04-24 | Structure for Attaching RFID Tag and Method for Detecting RFID Tag |
KR1020087026721A KR101084421B1 (ko) | 2006-05-01 | 2007-04-24 | Rfid 태그의 부착 구조 및 검지 방법 |
CN2007800158297A CN101438301B (zh) | 2006-05-01 | 2007-04-24 | 用于粘贴rfid标签的结构和用于检测rfid标签的方法 |
EP07742285A EP2023273A4 (en) | 2006-05-01 | 2007-04-24 | STRUCTURE FOR ATTACHING AN RFID LABEL AND METHOD FOR DETECTING AN RFID LABEL |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006127753A JP4040661B2 (ja) | 2006-05-01 | 2006-05-01 | Rfidタグの取り付け構造及び検知方法 |
JP2006-127753 | 2006-05-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007129569A1 true WO2007129569A1 (ja) | 2007-11-15 |
Family
ID=38667677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/058850 WO2007129569A1 (ja) | 2006-05-01 | 2007-04-24 | Rfidタグの取り付け構造及び検知方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090231100A1 (ja) |
EP (1) | EP2023273A4 (ja) |
JP (1) | JP4040661B2 (ja) |
KR (1) | KR101084421B1 (ja) |
CN (1) | CN101438301B (ja) |
WO (1) | WO2007129569A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4547442B2 (ja) * | 2008-04-23 | 2010-09-22 | 株式会社神戸製鋼所 | Rfidタグの検知方法,rfidタグ検知システム |
JP5101462B2 (ja) * | 2008-06-24 | 2012-12-19 | 菱電湘南エレクトロニクス株式会社 | 管理用タグ取付装置 |
ES2344823B8 (es) * | 2008-08-26 | 2011-09-28 | Javier Ferrer Alos | Metodo de recuperacion eficiente de la informacion contenida en una etiqueta rfid, cuando dicha etiqueta rfid esta dispuesta en una bobina de acero, y dispositivos para llevar a cabo dicho metodo. |
KR20130085609A (ko) * | 2012-01-20 | 2013-07-30 | 포항공과대학교 산학협력단 | 철강코일용 직교 rfid 태그 다이폴 |
JP5971857B2 (ja) * | 2012-12-04 | 2016-08-17 | 新日鐵住金株式会社 | 金属コイルの管理方法 |
JP7097159B2 (ja) | 2017-07-03 | 2022-07-07 | 高砂熱学工業株式会社 | 登録プログラム、携帯端末及び登録方法 |
CN107392300A (zh) * | 2017-08-25 | 2017-11-24 | 昆山法拉第智能科技有限公司 | 一种中间部位没有胶的电子标签 |
JP2020091734A (ja) * | 2018-12-06 | 2020-06-11 | 株式会社フジクラ | 設置方法、管理方法、rfid物品、及び、rfid物品の製造方法 |
JP7455679B2 (ja) * | 2020-06-18 | 2024-03-26 | 株式会社神戸製鋼所 | 通信方法および該装置ならびに吊上げ具 |
Citations (3)
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JP2002259934A (ja) | 2001-03-06 | 2002-09-13 | Dainippon Printing Co Ltd | Rfidタグ付き液体容器 |
JP2004010083A (ja) * | 2002-06-05 | 2004-01-15 | Daido Steel Co Ltd | 金属コイル結束方法および結束装置 |
JP2004192161A (ja) * | 2002-12-09 | 2004-07-08 | Toppan Printing Co Ltd | 製品の生産管理方法 |
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US4565049A (en) * | 1978-12-18 | 1986-01-21 | Westvaco Corporation | Method and apparatus for wrapping paper rolls |
FR2583226B1 (fr) * | 1985-06-10 | 1988-03-25 | France Etat | Antenne omnidirectionnelle cylindrique |
US6685696B2 (en) * | 1987-09-30 | 2004-02-03 | Lake Region Manufacturing, Inc. | Hollow lumen cable apparatus |
US6333699B1 (en) * | 1998-08-28 | 2001-12-25 | Marathon Oil Company | Method and apparatus for determining position in a pipe |
US7283061B1 (en) * | 1998-08-28 | 2007-10-16 | Marathon Oil Company | Method and system for performing operations and for improving production in wells |
FR2790121A1 (fr) * | 1999-02-19 | 2000-08-25 | Information Technology Dev | Dispositif d'authentification electronique sans contact miniaturise |
US6788066B2 (en) * | 2000-01-19 | 2004-09-07 | Baker Hughes Incorporated | Method and apparatus for measuring resistivity and dielectric in a well core in a measurement while drilling tool |
JP2003317052A (ja) * | 2002-04-24 | 2003-11-07 | Smart Card:Kk | Icタグシステム |
AU2003248714A1 (en) * | 2002-06-17 | 2003-12-31 | Trimedyne, Inc. | Devices and methods for minimally invasive treatment of degenerated spinal discs |
US7061382B2 (en) * | 2003-12-12 | 2006-06-13 | Francis M. Claessens | Apparatus for electronically verifying the authenticity of contents within a container |
US7405656B2 (en) * | 2004-01-30 | 2008-07-29 | United Parcel Service Of America, Inc. | Device and method for encapsulation and mounting of RFID devices |
US7036734B2 (en) * | 2004-02-04 | 2006-05-02 | Venture Research Inc. | Free standing column-shaped structure for housing RFID antennas and readers |
KR101095705B1 (ko) * | 2004-09-20 | 2011-12-20 | 씨제이 지엘에스 주식회사 | 알에프아이디 태그를 이용한 광대역 전자 물류 시스템 및그 방법 |
-
2006
- 2006-05-01 JP JP2006127753A patent/JP4040661B2/ja active Active
-
2007
- 2007-04-24 US US12/226,877 patent/US20090231100A1/en not_active Abandoned
- 2007-04-24 EP EP07742285A patent/EP2023273A4/en not_active Withdrawn
- 2007-04-24 CN CN2007800158297A patent/CN101438301B/zh active Active
- 2007-04-24 KR KR1020087026721A patent/KR101084421B1/ko active IP Right Grant
- 2007-04-24 WO PCT/JP2007/058850 patent/WO2007129569A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002259934A (ja) | 2001-03-06 | 2002-09-13 | Dainippon Printing Co Ltd | Rfidタグ付き液体容器 |
JP2004010083A (ja) * | 2002-06-05 | 2004-01-15 | Daido Steel Co Ltd | 金属コイル結束方法および結束装置 |
JP2004192161A (ja) * | 2002-12-09 | 2004-07-08 | Toppan Printing Co Ltd | 製品の生産管理方法 |
Non-Patent Citations (1)
Title |
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See also references of EP2023273A4 |
Also Published As
Publication number | Publication date |
---|---|
EP2023273A1 (en) | 2009-02-11 |
JP2007299277A (ja) | 2007-11-15 |
KR101084421B1 (ko) | 2011-11-21 |
CN101438301A (zh) | 2009-05-20 |
CN101438301B (zh) | 2012-09-19 |
KR20090007738A (ko) | 2009-01-20 |
JP4040661B2 (ja) | 2008-01-30 |
EP2023273A4 (en) | 2010-03-24 |
US20090231100A1 (en) | 2009-09-17 |
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