WO2023286843A1 - Method for individually identifying metal article, seal pad, and coil material - Google Patents

Method for individually identifying metal article, seal pad, and coil material Download PDF

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Publication number
WO2023286843A1
WO2023286843A1 PCT/JP2022/027743 JP2022027743W WO2023286843A1 WO 2023286843 A1 WO2023286843 A1 WO 2023286843A1 JP 2022027743 W JP2022027743 W JP 2022027743W WO 2023286843 A1 WO2023286843 A1 WO 2023286843A1
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WO
WIPO (PCT)
Prior art keywords
rfid tag
coil material
seal pad
article
individual identification
Prior art date
Application number
PCT/JP2022/027743
Other languages
French (fr)
Japanese (ja)
Inventor
敬明 廣海
俊幸 小森
敏之 小原
和広 八尋
昇史 塩谷
Original Assignee
Ｊｆｅスチール株式会社
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 Ｊｆｅスチール株式会社 filed Critical Ｊｆｅスチール株式会社
Priority to KR1020247000804A priority Critical patent/KR20240018638A/en
Priority to CN202280049846.7A priority patent/CN117642748A/en
Publication of WO2023286843A1 publication Critical patent/WO2023286843A1/en

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    • 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
    • G06K19/07758—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 arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
    • 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
    • G06K19/06—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
    • G06K19/0723—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 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • 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
    • 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 is a technique related to an individual identification method for a metal article such as a coil material in which a metal band is wound in a roll shape, for identifying and managing the article.
  • a metal strip made of a thin plate manufactured by cold rolling or hot rolling is, for example, wound into a roll to form a coil material.
  • a label having individual identification information is attached to the manufactured coil material in order to identify and manage the coil material.
  • the label is usually attached to a packing paper attached to cover the coil material.
  • the RFID tag described in Patent Document 1 is composed of a molded body in which a circuit including a coil (antenna) is sealed with resin.
  • a general RFID tag sealed with resin cannot communicate or has a short communication distance if there is a metal (steel product) on the back.
  • the RFID tag described in Patent Document 1 mixes magnetic powder into the resin between the circuit and the mounting surface. Thus, in Patent Literature 1, even if the mounting portion is made of metal, its adverse effects are mitigated.
  • JP 2007-199823 A Japanese Patent No. 6185714 Japanese Patent No. 5971857
  • the RFID tag described in Patent Document 1 has a problem that its structure is complicated. In addition, since the circuit is sealed, there is also a problem that the thickness of the tag increases accordingly.
  • a label is attached to the packaging paper of the coil material as in the conventional method, there is a possibility that the coil material to which the label is to be attached is mistaken when the coil material is transported by a truck or the like before packing.
  • the packing paper may be peeled off once and the coil material may be repackaged. In this case, if the label is attached to the packing paper, there is a possibility that the wrong label will be attached when the package is repackaged.
  • Patent Documents 2 and 3 describe the use of RFID tags instead of barcodes and labels for individual identification of coil materials.
  • Patent Documents 2 and 3 based on the idea that the coil material interferes with radio waves between the RFID tag and the reader, it is proposed to install the RFID tag in a cavity in the center of the coil material. Then, it is proposed to read out information from the RFID tag by bringing a reader into or close to the cavity.
  • Patent Document 2 does not describe a specific method of installing the RFID tag in the cavity.
  • Patent Literature 3 describes that an RFID tag is installed in a cavity by a magnet.
  • the present invention focuses on the above points, and aims to enable individual identification of coil materials and other metal articles more easily and reliably.
  • an RFID tag capable of storing individual identification information of the article is attached to the surface of a metal article via a base made of an insulating material, and the RFID tag includes: The gist is that individual identification of the article is performed by the individual identification information.
  • the RFID tag has an IC chip provided on the front surface side opposite to the back surface of the article side of the base body, and the antenna for wireless communication electrically connected to the IC chip is attached to the RFID tag. Preferably, it extends along the front surface of the substrate, and a portion of the antenna is located on the back surface of the substrate to contact the metal surface of the article.
  • the RFID tag since the RFID tag is attached directly to the metal article, it is less likely that the individual identification of the article will be mistaken compared to the case where the label is provided on the packing paper.
  • individual identification information can be acquired even when an article is packed with packing paper.
  • a substrate made of an insulating material is interposed between the metal article and the RFID tag. Therefore, according to the aspect of the present invention, a structure such as sealing the RFID tag with resin or the like is not necessarily required, and the structure of the RFID tag can be made simple.
  • the RFID antenna when the RFID antenna is positioned on the front surface of the base and part of the antenna is electrically connected to a metal article, the article itself becomes part of the antenna. As a result, even with a simple antenna circuit structure, it is possible to increase the communication distance of the RFID tag.
  • the RFID tag according to the aspect of the present invention can be attached to the outer surface (outer diameter side surface) of the coiled material which is easily visible.
  • FIG. 1 is a perspective view showing a state in which an RFID tag according to an embodiment of the present invention is attached to a coil material;
  • FIG. 1 is a front view showing an RFID tag according to an embodiment of the invention;
  • FIG. 4 is a front view showing a substrate with an RFID tag;
  • FIG. 10 is a back view showing a substrate with an RFID tag;
  • FIG. 4 is a side view showing a substrate with an RFID tag;
  • FIG. 10 is a diagram showing another example of an RFID tag;
  • FIG. 4 is a diagram showing an example of a coil material conveying state in a coil lifter;
  • an RFID tag capable of storing individual identification information of the article is attached to the surface of the article made of metal via a substrate made of an insulating material. Then, in this embodiment, the individual identification of the article is performed by reading the individual identification information in the RFID tag. This individual identification is used, for example, for management of individual identification of metal articles.
  • the RFID tag is provided with an IC chip on the front side of the substrate opposite to the back side of the article. An antenna for wireless communication electrically connected to the IC chip extends along the front surface of the base. Furthermore, it is preferable to arrange a part of the antenna on the back surface of the substrate and to contact the metal surface of the article.
  • the RFID tag used in this embodiment is a passive tag that stores individual identification information to be attached to a coil material made of a metal band. Storing the individual identification information in the RFID tag by writing with a writer may be performed after or before attaching the tag to the coil material.
  • the coil material 1 is manufactured by winding a hot-rolled or cold-rolled steel strip or other metal strip into a roll. As shown in FIG. 1, the manufactured coil material 1 is restrained in a coiled state by binding a binding band 2 wound in the circumferential direction. Note that the binding band 2 may also be used by being wound in an orthogonal direction perpendicular to the circumferential direction.
  • the binding band 2 is generally called a hoop band, and is generally made of a metal material from the viewpoint of securing strength.
  • the binding band 2 wound around the coil material 1 is bound by connecting the ends of the band 2 by spot welding while being tightened with a tightening tool.
  • a plate-like seal pad 3 is arranged at the band binding position. That is, as shown in FIG. 1, a portion of the plate-shaped seal pad 3 is interposed between the binding band 2 and the coil material 1.
  • the seal pad 3 is made of a nonmetallic material (insulating material) such as thick paper or resin such as a foam material.
  • the thickness of the seal pad 3 is, for example, 3 mm to 10 mm.
  • the substrate is a plate-like component made of an insulating material (non-metallic material) such as cardboard or resin such as foam material.
  • the case where the base body is composed of the seal pad 3 is exemplified.
  • a plurality of binding bands 2 are used for one coil material 1 .
  • the seal pad 3 used for at least one binding band 2 is provided with the RFID tag 4 .
  • the seal pad 3 consists of an insertion portion 3A and a body portion 3B continuous with the insertion portion 3A (see FIG. 3).
  • the seal pad 3 of this embodiment is U-shaped in plan view.
  • the left and right leg portions constitute an insertion portion 3A that is inserted between the surface of the coil material 1 and the binding band 2 .
  • the root portion connecting the two legs constitutes the main body portion 3B.
  • the shape of the seal pad 3 may not be the shape shown in FIG. 3, and may be a shape such as a plan view or a rectangular shape.
  • the RFID tag 4 is fixed to the body portion 3B of the seal pad 3 (substrate).
  • the thickness of the RFID is, for example, 1 mm or less.
  • the RFID tag 4 comprises an IC chip 5, a wireless communication antenna 6 connected to the IC chip 5, and a film material (not shown).
  • the film material may be omitted.
  • the film material is positioned so as to substantially overlap the antenna of FIG.
  • the film material is a base layer made of resin or paper.
  • An IC chip 5 and an antenna 6 are formed on the front surface of the film material.
  • a surface protective layer made of resin or the like may be provided on the surface to protect the IC chip and the antenna.
  • the film material of this embodiment has a strip-like rectangular shape.
  • An IC chip 5 is fixed to the central portion of the strip-shaped film material.
  • the individual identification information of the coil material 1 is written and stored in the storage section of the IC chip 5 by a known writer by non-contact communication.
  • the antenna 6 extends symmetrically along the longitudinal direction of the film material from the central IC chip 5 . That is, this embodiment exemplifies the case of a dipole antenna. That is, the antenna 6 of this embodiment has a circuit pattern extending linearly in the left-right direction.
  • the circuit pattern of the antenna 6 may be another pattern.
  • various antenna patterns such as a loop type and an inverted f type can be used.
  • the antenna 6 may be formed, for example, by printing on the surface of the film material.
  • the antenna 6 is made of metal such as aluminum foil.
  • the antenna 6 has a frequency adjustment portion 6A near the position of the IC chip 5 and an outer peripheral portion 6B continuous with the frequency adjustment portion 6A. Then, the peak of the frequency band of the antenna 6 is adjusted to, for example, 920 MHz, depending on the number and positions of apertures formed in the frequency adjusting section 6A.
  • reference numeral 6a indicates an opening (notch).
  • the RFID tag 4 can be attached to the surface of the seal pad 3 .
  • the adhesive layer is formed, for example, at a position overlapping the outer peripheral portion 6B of the antenna 6 .
  • the RFID tag 4 of this embodiment can also be composed only of the IC chip 5 and the antenna 6 .
  • the back surface of the antenna 6 may be attached to the attachment surface using double-sided adhesive tape or adhesive.
  • the IC chip 5 is attached to the front surface of the body portion 3B of the seal pad 3 (substrate) (the back surface of the seal pad 3 facing the coil material 1). face) on the opposite side). Then, the left and right antennas 6 are extended in the left and right direction of the front surface of the body portion 3B.
  • each outer peripheral portion 6B of the antenna 6 is turned to the rear surface through the end surface of the main body portion 3B as shown in FIG. be
  • a portion 6Ba (left and right end portions) of each outer peripheral portion 6B is arranged so as to be located on the rear surface of the main body portion 3B, as shown in FIG.
  • the RFID tag 4 is fixed to the surface of the seal pad 3 .
  • the RFID tag 4 is attached along the surface side of the main body portion 3B, and the left and right end portions of the RFID tag 4 are wound around the main body portion 3B so that the part 6Ba of the outer peripheral portion 6B is It is attached to the back side of the main body portion 3B.
  • the ends of the left and right antennas 6 are in a non-contact state as shown in FIG.
  • the RFID tag of the present embodiment is configured such that the portion of the antenna 6 located on the back surface of the seal pad 3 (part 6Ba of the outer peripheral portion 6B) is in contact with the surface of the coil material. It is attached to the coil material 1 .
  • a surface protective layer or the like is not formed on the front surface of the portion of the antenna 6 located on the back surface of the seal pad 3 (the portion 6Ba of the outer peripheral portion 6B).
  • the frequency band of the RFID tag 4 it is preferable to set the frequency band of the RFID tag 4 so that the peak is within the range of, for example, the UHF band (eg, 900 MHz to 960 MHz). Further, it is preferable that the RFID tag 4 is configured so that the communicable distance is 2 m or more, preferably 4 m or more at communication angles of 0 degrees and 45 degrees. In this embodiment, even if the RFID tag 4 has a simple structure (for example, a structure consisting only of the IC chip 5 and the antenna 6), the antenna 6 is used with part of the antenna 6 in contact with the coil material 1. FIG. As a result, the coil material 1 constitutes a part of the antenna 6, and the communication distance can be set to 2 m or more.
  • the leg portion (insertion portion 3A) of the seal pad 3 is inserted between the coil material 1 and the binding band 2.
  • the RFID tag 4 can be easily attached to the outer diameter side surface of the coil material 1 without soiling the surface of the coil material 1 .
  • the rear surface of the seal pad 3 can be pressed against the surface of the coil material 1 .
  • the RFID tag 4 can be easily attached, there is no risk of the RFID tag 4 being displaced or removed when the coil material 1 is moved.
  • the seal pad 3 with the RFID tag 4 can be easily removed from the coil material 1 only by removing the binding band 2. - ⁇
  • a seal pad 3 with an RFID tag 4 is installed on the outer diameter side surface of the coil material 1 . Therefore, not only is it easy to install the RFID tag 4, but it is also possible to easily confirm that the RFID tag 4 is installed on the coil material 1 when packing, repacking, or unpacking. can.
  • the coil material 1 is conveyed and stored so that the seal pad 3 with the RFID tag 4 is located in the range of the upper half side of the coil material 1 .
  • the seal pad 3 with the RFID tag is used in the packing paper, individual identification management of the coil material 1 can be performed both after packing and after unpacking. Even if the packing paper is removed or replaced in the middle, the tags are not mistaken, so that the coil material 1 can be identified more reliably.
  • the RFID tag 4 of the present embodiment has a simple structure, it is possible to improve the frequency characteristics according to the shape of the seal pad and extend the reading (communication) distance as compared with the conventional one. As a result, it becomes possible to perform individual identification management without approaching the steel product as visually. That is, in this embodiment, the degree of freedom (range) of the position where the RFID tag 4 can be read is improved compared to the case where the RFID tag is installed in the central cavity of the coil material 1 .
  • individual identification information is stored in the RFID tag by writing with a writer.
  • the individual identification information may be stored after or before attaching the tag to the coil material.
  • reading of individual identification information from the RFID tag 4 attached to the coil material 1 is executed by a reader.
  • the reader is provided in a conveying device such as a coil lifter that conveys the coil material 1 .
  • individual identification management of the coil material 1 can be performed when the coil material 1 is transported, such as when the coil material 1 is stored or delivered.
  • FIG. 7 shows an example of the state of the coil lifter 100 when conveying the coil material. Note that the binding band 2 is omitted in FIG. 7 for the sake of clarity.
  • information can be read from the RFID tag 4 attached to the coil material 1 by a reader 101 installed on the main body (non-moving part) of the coil lifter 100 . That is, it is possible to read information from the RFID tag 4 without attaching the reader 101 only to the movable portion of the coil lifter 100 .
  • the reader may be of a hand type that can be handled by a worker. In this case, for example, a worker can approach the coil material 1 loaded on a transport vehicle such as a truck or the coil material 1 placed in a warehouse to identify the coil material 1 .
  • the reader may be a reader/writer with writing capability.
  • information such as tracking information may be added or changed to the RFID tag.
  • the communication distance of the RFID tag 4 was increased by about 2 times or more in theory, and by about 1.2 times or more in field verification. I'm sure
  • the base body is composed of the seal pad 3
  • the base body may be a component separate from the seal pad 3 .
  • a base with an RFID tag may be attached to the surface of the coil material 1 with a double-sided adhesive tape.
  • the adhesive adheres to the surface of the coil material 1 at the time of attachment, the quality of the coil material 1 may be adversely affected.
  • the double-sided adhesive tape must be installed so as not to touch the antenna.
  • a gap corresponding to the thickness of the tape may be formed between the coil material and the antenna. Therefore, it is preferable to attach the substrate to the coil material 1 by inserting it between the binding band 2 and the coil material 1 . Further, it is preferable to use the seal pad 3 as the base as described above. When the seal pad 3 is used as the base, additional work for attaching the RFID tag to the coil material 1 is not required.
  • the antenna 6 of the RFID tag 4 is arranged to extend to the back surface of the seal pad 3, but the antenna 6 of the RFID tag 4 is arranged only on the front surface of the seal pad 3. can be However, the communication distance of the RFID tag 4 can be increased by extending the antenna 6 of the RFID tag 4 to the rear surface of the seal pad 3 .
  • the RFID tag is not limited to the dipole type as shown in FIG. A loop type antenna pattern as shown in FIG. 6 may be used. However, in the RFID tag configured as shown in FIG. 6, it is preferable that there is a film material 7 as a tag base material. Alternatively, the RFID tag 4 may be provided on the coil material 1 by attaching the substrate onto the band.
  • An RFID tag capable of storing individual identification information of the article is attached to the surface of a metal article via a substrate made of an insulating material, and the individual identification information of the article is used to identify the article.
  • a method for individual identification of metal articles characterized by: (2) The RFID tag has an IC chip provided on the front surface of the base body opposite to the back surface of the article, and the antenna for wireless communication electrically connected to the IC chip Extending along the front surface of the substrate, a portion of the antenna is positioned on the back surface of the substrate to contact the metal surface of the article.
  • the article to which the RFID tag is attached is packed with packing paper, and individual identification of the article is performed in the packed state.
  • the metal article is a coil material formed by winding a metal strip into a roll and restraining it with a binding band,
  • the base body has an insertion portion inserted between the surface of the coil material and the binding band, the RFID tag is provided at a position other than the insertion portion, and is attached to the surface of the coil material by the insertion.
  • the base body is a seal pad that is arranged between the surface of the coil material and the binding band when binding the binding band.
  • the RFID tag has an IC chip provided on the front surface side of the seal pad, and an antenna for wireless communication electrically connected to the IC chip extends along the front surface of the seal pad. A portion of the antenna is located on the back surface of the seal pad.
  • a coil material provided with a seal pad with an RFID tag of the present disclosure.
  • a peak frequency of the RFID tag is in the range of 900 MHz to 960 MHz, and a communicable distance of the RFID is 2 m or more at communication angles of 0 degrees and 45 degrees.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Credit Cards Or The Like (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Details Of Aerials (AREA)

Abstract

The purpose of the present invention is to provide an RFID tag that can be attached to a coil material by a simple method and that can increase communication distance. An RFID tag (4) capable of storing therein individual identification information of a metal article (1) is attached to a surface of the article with a base (3) made from an insulating material therebetween, and individual identification is performed on the article (1) using the individual identification information in the RFID tag (4).

Description

金属製物品の個体識別方法、シールパット、及びコイル材METHOD FOR INDIVIDUALIZATION OF METAL PRODUCTS, SEAL PAT, AND COIL MATERIAL
　本発明は、金属帯をロール状に巻き付けたコイル材などの金属製の物品を識別管理するための、当該物品の個体識別方法に関する技術である。 The present invention is a technique related to an individual identification method for a metal article such as a coil material in which a metal band is wound in a roll shape, for identifying and managing the article.
　冷延や熱延で製造された薄板からなる金属帯は、例えば、ロール状に巻きつけられてコイル材となる。製造されたコイル材には、コイル材を識別管理するために、個体識別情報を有するラベルが取り付けられる。
　上記ラベルは、通常、コイル材を覆うように取り付けられた梱包紙に対し、貼り付けられる。 A metal strip made of a thin plate manufactured by cold rolling or hot rolling is, for example, wound into a roll to form a coil material. A label having individual identification information is attached to the manufactured coil material in order to identify and manage the coil material.
The label is usually attached to a packing paper attached to cover the coil material.
　また、特許文献１に記載のような、金属面に装着可能なＲＦＩＤタグも知られている。
　特許文献１に記載のＲＦＩＤタグは、コイル（アンテナ）を含む回路を樹脂により封止した成形体からなる。樹脂で封止された一般のＲＦＩＤタグは、背面に金属（鉄鋼商品）があると、通信ができなかったり、通信距離が短くなったりする。これに対し、特許文献１に記載のＲＦＩＤタグは、回路と取付け面との間の樹脂に磁性粉末を混入する。これによって、特許文献１では、取付け部が金属であっても、その悪影響を緩和するというものである。 Also known is an RFID tag that can be attached to a metal surface, as described in Patent Document 1.
The RFID tag described in Patent Document 1 is composed of a molded body in which a circuit including a coil (antenna) is sealed with resin. A general RFID tag sealed with resin cannot communicate or has a short communication distance if there is a metal (steel product) on the back. On the other hand, the RFID tag described in Patent Document 1 mixes magnetic powder into the resin between the circuit and the mounting surface. Thus, in Patent Literature 1, even if the mounting portion is made of metal, its adverse effects are mitigated.
特開２００７－１９９８２３号公報JP 2007-199823 A 特許第６１８５７１４号公報Japanese Patent No. 6185714 特許第５９７１８５７号公報Japanese Patent No. 5971857
　しかし、特許文献１に記載のＲＦＩＤタグは、構造が複雑であるという課題がある。また、回路を封止する構成であるため、その分、タグの厚みが厚くなってしまうという課題もある。
　また、従来のようにコイル材の梱包紙にラベルを貼り付ける場合、梱包前のコイル材をトラックなどで搬送したりする際に、ラベルを貼り付けるコイル材を取り違える可能性がある。更に、顧客にコイル材を渡す際に、一度梱包紙を引きはがし、再度梱包する場合もある。この場合に、梱包紙にラベルが取り付けられていると、再度の梱包の際に、取り付けるラベルを間違える可能性がある。 However, the RFID tag described in Patent Document 1 has a problem that its structure is complicated. In addition, since the circuit is sealed, there is also a problem that the thickness of the tag increases accordingly.
In addition, when a label is attached to the packaging paper of the coil material as in the conventional method, there is a possibility that the coil material to which the label is to be attached is mistaken when the coil material is transported by a truck or the like before packing. Furthermore, when the coil material is handed over to the customer, the packing paper may be peeled off once and the coil material may be repackaged. In this case, if the label is attached to the packing paper, there is a possibility that the wrong label will be attached when the package is repackaged.
　これに対し、特許文献２や特許文献３には、コイル材の個体識別にために、バーコードやラベルに代えて、ＲＦＩＤタグを用いることが記載されている。特許文献２，３では、コイル材がＲＦＩＤタグとリーダーとの間の電波の妨げとなるとの考えから、コイル材中央の空洞内にＲＦＩＤタグを設置することを提案している。そして、その空洞内若しくは空洞にリーダーを近づけることで、ＲＦＩＤタグから情報を読み出すことが提案されている。なお、特許文献２には、空洞内へのＲＦＩＤタグの具体的な設置方法について記載はない。一方、特許文献３では、ＲＦＩＤタグを磁石によって空洞内に設置することが記載されている。 On the other hand, Patent Documents 2 and 3 describe the use of RFID tags instead of barcodes and labels for individual identification of coil materials. In Patent Documents 2 and 3, based on the idea that the coil material interferes with radio waves between the RFID tag and the reader, it is proposed to install the RFID tag in a cavity in the center of the coil material. Then, it is proposed to read out information from the RFID tag by bringing a reader into or close to the cavity. Note that Patent Document 2 does not describe a specific method of installing the RFID tag in the cavity. On the other hand, Patent Literature 3 describes that an RFID tag is installed in a cavity by a magnet.
　しかし、コイル材の表面側（外表面側）にバーコードやラベルを設ける場合に比べ、コイル材中央の空洞内にＲＦＩＤタグを設置することは、手間が掛かるおそれがある。
　また、ＲＦＩＤタグをコイル材の空洞内に磁石の磁力で設置することは、コイル材を運搬する際など、移動時の衝撃でＲＦＩＤタグが外れるおそれがある。更に、情報の読み取りの際に、空洞内にリーダーを差し入れたり、当該空洞にリーダーを近づけたりしてＲＦＩＤタグから読み取る必要があり、情報を読み取り可能な範囲が狭いおそれがある。また、梱包の際や再度梱包する際に、コイル材にＲＦＩＤタグがちゃんと設置されているか否かを確認するために、空洞内を覗いて見る必要がある。すなわち、ＲＦＩＤタグの設置有無の確認が簡易でない。 However, compared to the case where a bar code or label is provided on the surface side (outer surface side) of the coil material, installing the RFID tag in the cavity at the center of the coil material may require more work.
Moreover, when the RFID tag is installed in the cavity of the coil material by the magnetic force of the magnet, there is a risk that the RFID tag will come off due to the impact during movement such as when the coil material is transported. Furthermore, when reading information, it is necessary to insert a reader into the cavity or bring the reader close to the cavity to read from the RFID tag, and there is a possibility that the range in which information can be read is narrow. In addition, when packing or repacking, it is necessary to look into the cavity in order to confirm whether the RFID tag is properly installed on the coil material. That is, it is not easy to confirm whether or not an RFID tag is installed.
　本発明は、上記のよう点に着目したもので、より簡易且つ確実に、コイル材その他の金属製の物品の個体識別を可能にすることを目的とする。 The present invention focuses on the above points, and aims to enable individual identification of coil materials and other metal articles more easily and reliably.
　課題解決のために、本発明の一態様は、金属製の物品の表面に、絶縁材料からなる基体を介して、上記物品の個体識別情報を格納可能なＲＦＩＤタグを取付け、上記ＲＦＩＤタグ内の個体識別情報によって上記物品の個体識別を行う、ことを要旨とする。
　このとき、上記ＲＦＩＤタグは、上記基体における上記物品側の裏面とは反対側のおもて面側にＩＣチップが設けられ、そのＩＣチップに電気的に接続した無線通信用のアンテナが、上記基体のおもて面に沿って延在し、更に、そのアンテナの一部を、上記基体の裏面に配置して上記物品の金属面に接触させる、ことが好ましい。 To solve the problem, in one aspect of the present invention, an RFID tag capable of storing individual identification information of the article is attached to the surface of a metal article via a base made of an insulating material, and the RFID tag includes: The gist is that individual identification of the article is performed by the individual identification information.
At this time, the RFID tag has an IC chip provided on the front surface side opposite to the back surface of the article side of the base body, and the antenna for wireless communication electrically connected to the IC chip is attached to the RFID tag. Preferably, it extends along the front surface of the substrate, and a portion of the antenna is located on the back surface of the substrate to contact the metal surface of the article.
　本発明の態様によれば、金属製の物品に直接、ＲＦＩＤタグを取り付けるため、梱包紙にラベルを設ける場合に比べ、物品の個体識別を間違え難くなる。且つ、本発明の態様によれば、物品を梱包紙で梱包しても、個体識別情報の取得が可能となる。
　また、金属製の物品とＲＦＩＤタグと間に絶縁材料からなる基体を介在する。このため、本発明の態様によれば、必ずしもＲＦＩＤタグを樹脂などで封止するなどの構造が不要となり、ＲＦＩＤタグの構造を簡易な構成とすることができる。 According to the aspect of the present invention, since the RFID tag is attached directly to the metal article, it is less likely that the individual identification of the article will be mistaken compared to the case where the label is provided on the packing paper. In addition, according to the aspect of the present invention, individual identification information can be acquired even when an article is packed with packing paper.
Also, a substrate made of an insulating material is interposed between the metal article and the RFID tag. Therefore, according to the aspect of the present invention, a structure such as sealing the RFID tag with resin or the like is not necessarily required, and the structure of the RFID tag can be made simple.
　更に、ＲＦＩＤのアンテナが、基体のおもて面に位置すると共に、アンテナの一部を金属製の物品に電気的に接続する場合には、物品自体がアンテナの一部となる。この結果、簡易なアンテナの回路構造であっても、ＲＦＩＤタグの通信距離を稼ぐことが可能となる。この場合、物品がコイル材の場合、視認しやすいコイル材の外表面（外径側表面）に対し本発明の態様のＲＦＩＤタグを取り付けて使用することが出来る。 Furthermore, when the RFID antenna is positioned on the front surface of the base and part of the antenna is electrically connected to a metal article, the article itself becomes part of the antenna. As a result, even with a simple antenna circuit structure, it is possible to increase the communication distance of the RFID tag. In this case, when the article is a coiled material, the RFID tag according to the aspect of the present invention can be attached to the outer surface (outer diameter side surface) of the coiled material which is easily visible.
本発明に基づく実施形態に係るＲＦＩＤタグをコイル材に取り付けた状態を示す斜視図である。1 is a perspective view showing a state in which an RFID tag according to an embodiment of the present invention is attached to a coil material; FIG. 本発明に基づく実施形態に係るＲＦＩＤタグを示す正面図である。1 is a front view showing an RFID tag according to an embodiment of the invention; FIG. ＲＦＩＤタグ付きの基体を示す正面図である。FIG. 4 is a front view showing a substrate with an RFID tag; ＲＦＩＤタグ付きの基体を示す裏面図である。FIG. 10 is a back view showing a substrate with an RFID tag; ＲＦＩＤタグ付きの基体を示す側面図である。FIG. 4 is a side view showing a substrate with an RFID tag; ＲＦＩＤタグの別の例を示す図である。FIG. 10 is a diagram showing another example of an RFID tag; コイルリフターでのコイル材搬送状態の例を示す図である。FIG. 4 is a diagram showing an example of a coil material conveying state in a coil lifter;
　次に、本発明の実施形態について図面を参照して説明する。
　本実施形態は、金属製の物品の表面に、絶縁材料からなる基体を介して、物品の個体識別情報を格納可能なＲＦＩＤタグを取付ける。そして、本実施形態は、ＲＦＩＤタグ内の個体識別情報の読み取りによって物品の個体識別を行う。この個体識別は、例えば、金属製物品の個体識別の管理に用いられる。
　このとき、ＲＦＩＤタグは、基体における物品側の裏面とは反対側のおもて面側にＩＣチップが設けられる。そして、そのＩＣチップに電気的に接続した無線通信用のアンテナが、上記基体のおもて面に沿って延在する。更に、そのアンテナの一部を、上記基体の裏面に配し上記物品の金属面に接触させる、構成が好ましい。 Next, embodiments of the present invention will be described with reference to the drawings.
In this embodiment, an RFID tag capable of storing individual identification information of the article is attached to the surface of the article made of metal via a substrate made of an insulating material. Then, in this embodiment, the individual identification of the article is performed by reading the individual identification information in the RFID tag. This individual identification is used, for example, for management of individual identification of metal articles.
At this time, the RFID tag is provided with an IC chip on the front side of the substrate opposite to the back side of the article. An antenna for wireless communication electrically connected to the IC chip extends along the front surface of the base. Furthermore, it is preferable to arrange a part of the antenna on the back surface of the substrate and to contact the metal surface of the article.
　以下の例では、金属製の物品として、コイル材を例に挙げて説明する。ただし、本発明は、圧延鋼板やインゴットなどの金属製の物品であっても適用可能である。
　なお、本実施形態で用いるＲＦＩＤタグは、金属帯からなるコイル材に取り付けるための個体識別情報を格納したパッシブ型のタグとする。ライターによる書き込みで実行されるＲＦＩＤタグへの個体識別情報の格納は、タグをコイル材に取り付けた後でも良いし、取付け前でも良い。 In the following example, a coil material will be described as an example of a metal article. However, the present invention is also applicable to metal articles such as rolled steel plates and ingots.
The RFID tag used in this embodiment is a passive tag that stores individual identification information to be attached to a coil material made of a metal band. Storing the individual identification information in the RFID tag by writing with a writer may be performed after or before attaching the tag to the coil material.
　（コイル材）
　コイル材１は、熱延や冷延で加工された鉄鋼その他の金属帯をロール状に巻きつけられて製造される。製造されたコイル材１は、図１に示すように、周方向に巻きつけられた結束バンド２を結束することによって、コイル状の状態で拘束される。なお、結束バンド２は、周方向と直交する直交方向にも巻きつけられて使用されることもある。
　結束バンド２は、一般にフープバンドと呼ばれ、強度確保の観点から一般に、金属材料からなる。 (coil material)
The coil material 1 is manufactured by winding a hot-rolled or cold-rolled steel strip or other metal strip into a roll. As shown in FIG. 1, the manufactured coil material 1 is restrained in a coiled state by binding a binding band 2 wound in the circumferential direction. Note that the binding band 2 may also be used by being wound in an orthogonal direction perpendicular to the circumferential direction.
The binding band 2 is generally called a hoop band, and is generally made of a metal material from the viewpoint of securing strength.
　コイル材１に巻きつけた結束バンド２は、締付け具によって締付けた状態で、バンド２の端部同士をスポット溶接で連結することで、結束される。
　この結束バンド２の端部同士を結束する際に、コイル材１表面を保護するために、バンド結束位置に板状のシールパット３が配置される。すなわち、図１のように、結束バンド２とコイル材１との間に、板状のシールパット３の一部が介在される。
　すなわち、シールパット３をコイル材１の表面にあてがうことによって、結束バンド２の端部同士をコイル材１表面から浮かした状態とする。その状態とすることで、結束バンド２の端部同士のスポット溶接作業ができる。
　このシールパット３は、厚紙や発泡材等の樹脂など、非金属材料（絶縁材料）からなる。シールパット３の厚みは、例えば３ｍｍ～１０ｍｍである。 The binding band 2 wound around the coil material 1 is bound by connecting the ends of the band 2 by spot welding while being tightened with a tightening tool.
In order to protect the surface of the coil material 1 when the ends of the binding band 2 are bound together, a plate-like seal pad 3 is arranged at the band binding position. That is, as shown in FIG. 1, a portion of the plate-shaped seal pad 3 is interposed between the binding band 2 and the coil material 1. As shown in FIG.
That is, by applying the seal pad 3 to the surface of the coil material 1 , the ends of the binding band 2 are raised from the surface of the coil material 1 . By setting it in this state, the end portions of the binding band 2 can be spot-welded together.
The seal pad 3 is made of a nonmetallic material (insulating material) such as thick paper or resin such as a foam material. The thickness of the seal pad 3 is, for example, 3 mm to 10 mm.
　＜基体＞
　基体は、厚紙や発泡材等の樹脂など、絶縁材料（非金属材料）からなる板状の部品である。
　本実施形態では、基体を、シールパット３から構成する場合を例示する。なお、一つのコイル材１に対し、複数個の結束バンド２が使用される。しかし、少なくとも一つの結束バンド２に使用するシールパット３にＲＦＩＤタグ４が設けられていればよい。
　シールパット３は、差し込み部３Ａと、差し込み部３Ａに連続する本体部３Ｂとからなる（図３参照）。 <Substrate>
The substrate is a plate-like component made of an insulating material (non-metallic material) such as cardboard or resin such as foam material.
In this embodiment, the case where the base body is composed of the seal pad 3 is exemplified. A plurality of binding bands 2 are used for one coil material 1 . However, it is sufficient if the seal pad 3 used for at least one binding band 2 is provided with the RFID tag 4 .
The seal pad 3 consists of an insertion portion 3A and a body portion 3B continuous with the insertion portion 3A (see FIG. 3).
　本実施形態のシールパット３は、正面図である図３に示すように、平面視コ字状となっている。具体的には、本実施形態のシールパット３では、左右の足部が、コイル材１の表面と結束バンド２との間に差し込まれる差し込み部３Ａを構成する。また、その２つの足部を連結する根元部分が本体部３Ｂを構成する。
　なお、シールパット３の形状は、図３の形状でなくても良く、平面視、矩形状などの形状でも良い。 As shown in FIG. 3, which is a front view, the seal pad 3 of this embodiment is U-shaped in plan view. Specifically, in the seal pad 3 of the present embodiment, the left and right leg portions constitute an insertion portion 3A that is inserted between the surface of the coil material 1 and the binding band 2 . Moreover, the root portion connecting the two legs constitutes the main body portion 3B.
The shape of the seal pad 3 may not be the shape shown in FIG. 3, and may be a shape such as a plan view or a rectangular shape.
　＜ＲＦＩＤタグ４＞
　ＲＦＩＤタグ４は、シールパット３（基体）の本体部３Ｂに固定される。
　ＲＦＩＤの厚さは、例えば、１ｍｍ以下の厚さである。
　ＲＦＩＤタグ４は、図２に示すように、ＩＣチップ５と、ＩＣチップ５に接続した無線通信用のアンテナ６と、フィルム材（不図示）からなる。
　フィルム材は、なくても良い。フィルム材は、図２のアンテナとほぼ重なった位置に配置される。フィルム材は、樹脂や紙材からなる基体層である。 <RFID tag 4>
The RFID tag 4 is fixed to the body portion 3B of the seal pad 3 (substrate).
The thickness of the RFID is, for example, 1 mm or less.
As shown in FIG. 2, the RFID tag 4 comprises an IC chip 5, a wireless communication antenna 6 connected to the IC chip 5, and a film material (not shown).
The film material may be omitted. The film material is positioned so as to substantially overlap the antenna of FIG. The film material is a base layer made of resin or paper.
　そのフィルム材のおもて面に、ＩＣチップ５及びアンテナ６が形成されている。
　表面にＩＣチップやアンテナを保護する、樹脂製などの表面保護層を有していてもよい。
　本実施形態のフィルム材は、短冊状の長方形形状をしている。その短冊状のフィルム材中央部にＩＣチップ５が固定される。なお、このＩＣチップ５の記憶部に、公知のライターによって、コイル材１の個体識別情報が非接触通信で書き込まれて格納される。 An IC chip 5 and an antenna 6 are formed on the front surface of the film material.
A surface protective layer made of resin or the like may be provided on the surface to protect the IC chip and the antenna.
The film material of this embodiment has a strip-like rectangular shape. An IC chip 5 is fixed to the central portion of the strip-shaped film material. In addition, the individual identification information of the coil material 1 is written and stored in the storage section of the IC chip 5 by a known writer by non-contact communication.
　アンテナ６は、中央のＩＣチップ５から、フィルム材に長手方向に沿って左右対称に延在している。つまり、本実施形態は、ダイポール型アンテナの場合を例示している。
　すなわち、本実施形態のアンテナ６は、左右方向に直線状に延在する回路パターンとなっている。アンテナ６の回路パターンは他のパターンであってもよい。アンテナ６として、ループ型や、逆ｆ型などの各種のアンテナパターンを用いることもできる。
　なお、アンテナ６は、例えば、フィルム材の表面に印刷等で形成すればよい。 The antenna 6 extends symmetrically along the longitudinal direction of the film material from the central IC chip 5 . That is, this embodiment exemplifies the case of a dipole antenna.
That is, the antenna 6 of this embodiment has a circuit pattern extending linearly in the left-right direction. The circuit pattern of the antenna 6 may be another pattern. As the antenna 6, various antenna patterns such as a loop type and an inverted f type can be used.
The antenna 6 may be formed, for example, by printing on the surface of the film material.
　アンテナ６は、アルミ箔などの金属体から構成される。アンテナ６は、ＩＣチップ５の位置に近い周波数調整部６Ａと、その周波数調整部６Ａに連続する外周部６Ｂとを有する。そして、周波数調整部６Ａに形成する開口の数や位置などによって、アンテナ６の周波数帯のピークが、例えば９２０ＭＨｚに調整する。図２中、符号６ａは、開口（切欠き）を示す。
　また、フィルム材の裏面に粘着層を設けることで、シールパット３の面にＲＦＩＤタグ４を貼り付け可能となっている。粘着層は、例えばアンテナ６の外周部６Ｂと重なる位置に形成する。 The antenna 6 is made of metal such as aluminum foil. The antenna 6 has a frequency adjustment portion 6A near the position of the IC chip 5 and an outer peripheral portion 6B continuous with the frequency adjustment portion 6A. Then, the peak of the frequency band of the antenna 6 is adjusted to, for example, 920 MHz, depending on the number and positions of apertures formed in the frequency adjusting section 6A. In FIG. 2, reference numeral 6a indicates an opening (notch).
Also, by providing an adhesive layer on the back surface of the film material, the RFID tag 4 can be attached to the surface of the seal pad 3 . The adhesive layer is formed, for example, at a position overlapping the outer peripheral portion 6B of the antenna 6 .
　本実施形態のＲＦＩＤタグ４は、ＩＣチップ５とアンテナ６だけから構成させることもできる。この場合、アンテナ６の裏面を、両面粘着テープや粘着剤を用いて、貼り付け面に貼り付ければよい。
　そして、本実施形態のＲＦＩＤタグ４は、図３に示すように、ＩＣチップ５が、シールパット３（基体）の本体部３Ｂのおもて面（シールパット３におけるコイル材１を向く裏面とは反対側の面）の長手方向中央部に位置するように設定する。そして、左右のアンテナ６を、本体部３Ｂのおもて面の左右方向にそれぞれ延在させる。更に、そのアンテナ６の各外周部６Ｂの一部６Ｂａ（左右の各端部側）が、シールパッド３の裏面側を表す図４に示すように、本体部３Ｂの端面を介して裏面に廻される。これによって、各外周部６Ｂの一部６Ｂａ（左右の各端部側）が、図４に示すように、本体部３Ｂの裏面に位置するように配置される。この結果、当該ＲＦＩＤタグ４は、シールパット３の面に固定される。 The RFID tag 4 of this embodiment can also be composed only of the IC chip 5 and the antenna 6 . In this case, the back surface of the antenna 6 may be attached to the attachment surface using double-sided adhesive tape or adhesive.
In the RFID tag 4 of the present embodiment, as shown in FIG. 3, the IC chip 5 is attached to the front surface of the body portion 3B of the seal pad 3 (substrate) (the back surface of the seal pad 3 facing the coil material 1). face) on the opposite side). Then, the left and right antennas 6 are extended in the left and right direction of the front surface of the body portion 3B. Further, a part 6Ba (left and right end portions) of each outer peripheral portion 6B of the antenna 6 is turned to the rear surface through the end surface of the main body portion 3B as shown in FIG. be As a result, a portion 6Ba (left and right end portions) of each outer peripheral portion 6B is arranged so as to be located on the rear surface of the main body portion 3B, as shown in FIG. As a result, the RFID tag 4 is fixed to the surface of the seal pad 3 .
　すなわち、ＲＦＩＤタグ４を、本体部３Ｂの表面側に沿って貼り付け、更に、ＲＦＩＤタグ４の左右の端部側を、本体部３Ｂに巻きつけるようにして、外周部６Ｂの一部６Ｂａを本体部３Ｂの裏面側に貼り付ける。
　なお、左右のアンテナ６の端部同士は、図４に示すように、非接触状態とする。
　これによって、本実施形態のＲＦＩＤタグは、図５に示すように、シールパット３の裏面に位置するアンテナ６の部分（外周部６Ｂの一部６Ｂａ）がコイル材表面に接触した状態で、当該コイル材１に取り付けられる。なお、シールパット３の裏面に位置するアンテナ６の部分（外周部６Ｂの一部６Ｂａ）のおもて面には、表面保護層等が形成されていない。 That is, the RFID tag 4 is attached along the surface side of the main body portion 3B, and the left and right end portions of the RFID tag 4 are wound around the main body portion 3B so that the part 6Ba of the outer peripheral portion 6B is It is attached to the back side of the main body portion 3B.
Note that the ends of the left and right antennas 6 are in a non-contact state as shown in FIG.
As a result, as shown in FIG. 5, the RFID tag of the present embodiment is configured such that the portion of the antenna 6 located on the back surface of the seal pad 3 (part 6Ba of the outer peripheral portion 6B) is in contact with the surface of the coil material. It is attached to the coil material 1 . A surface protective layer or the like is not formed on the front surface of the portion of the antenna 6 located on the back surface of the seal pad 3 (the portion 6Ba of the outer peripheral portion 6B).
　ここで、ＲＦＩＤタグ４の周波数帯は、ピークが、例えばＵＨＦ帯（例えば９００ＭＨｚ～９６０ＭＨｚ）の範囲内にあるように設定することが好ましい。
　また、ＲＦＩＤタグ４の通信可能な距離が、交信角度０度及び４５度で２ｍ以上、好ましくは４ｍ以上となるように構成することが好ましい。
　本実施形態では、ＲＦＩＤタグ４が簡易な構造（例えば、ＩＣチップ５とアンテナ６だけからの構成）であっても、アンテナ６の一部をコイル材１に接触されて使用される。この結果、コイル材１がアンテナ６の一部を構成して、通信距離を２ｍ以上に設定可能となる。 Here, it is preferable to set the frequency band of the RFID tag 4 so that the peak is within the range of, for example, the UHF band (eg, 900 MHz to 960 MHz).
Further, it is preferable that the RFID tag 4 is configured so that the communicable distance is 2 m or more, preferably 4 m or more at communication angles of 0 degrees and 45 degrees.
In this embodiment, even if the RFID tag 4 has a simple structure (for example, a structure consisting only of the IC chip 5 and the antenna 6), the antenna 6 is used with part of the antenna 6 in contact with the coil material 1. FIG. As a result, the coil material 1 constitutes a part of the antenna 6, and the communication distance can be set to 2 m or more.
　（作用その他）
　本実施形態のシールパット３は、図１及び図５に示すように、シールパット３の足部（差し込み部３Ａ）をコイル材１と結束バンド２の間に差し込む。この結果、コイル材１の表面を汚すことなく、ＲＦＩＤタグ４を、コイル材１の外径側表面に容易に取り付けることができる。また、シールパット３の裏面をコイル材１表面に押しつけることができる。
　また、本実施形態では、ＲＦＩＤタグ４を簡易に取り付けることが出来るにも拘わらず、コイル材１の移動時に、ＲＦＩＤタグ４の位置がずれたり、外れたりするおそれがない。 (action and others)
In the seal pad 3 of this embodiment, as shown in FIGS. 1 and 5, the leg portion (insertion portion 3A) of the seal pad 3 is inserted between the coil material 1 and the binding band 2. As shown in FIG. As a result, the RFID tag 4 can be easily attached to the outer diameter side surface of the coil material 1 without soiling the surface of the coil material 1 . Also, the rear surface of the seal pad 3 can be pressed against the surface of the coil material 1 .
Moreover, in the present embodiment, although the RFID tag 4 can be easily attached, there is no risk of the RFID tag 4 being displaced or removed when the coil material 1 is moved.
　更に、ＲＦＩＤタグ４付きのシールパット３は、結束バンド２を外すだけで、コイル材１から簡単に取り外すことができる。
　また、ＲＦＩＤタグ４付きシールパット３を、コイル材１の外径側表面に設置する。このため、ＲＦＩＤタグ４の設置が容易であるばかりでなく、梱包時や再梱包、開梱の際にも、コイル材１にＲＦＩＤタグ４が設置されていることを、簡易に確認することができる。
　なお、ＲＦＩＤタグ４付きシールパット３が、コイル材１の上半分側の範囲に位置するようにして、コイル材１の搬送や格納を行うことが好ましい。 Furthermore, the seal pad 3 with the RFID tag 4 can be easily removed from the coil material 1 only by removing the binding band 2. - 特許庁
Also, a seal pad 3 with an RFID tag 4 is installed on the outer diameter side surface of the coil material 1 . Therefore, not only is it easy to install the RFID tag 4, but it is also possible to easily confirm that the RFID tag 4 is installed on the coil material 1 when packing, repacking, or unpacking. can.
In addition, it is preferable that the coil material 1 is conveyed and stored so that the seal pad 3 with the RFID tag 4 is located in the range of the upper half side of the coil material 1 .
　また、ＲＦＩＤタグ付きのシールパット３は梱包紙内に使用されるので、梱包後も開梱後もコイル材１の個体識別管理ができる。そして、途中で梱包紙が取り外されたり、交換されたりしても、タグの取り違いがないので、より確実にコイル材１の個体識別が可能となる。
　また、本実施形態のＲＦＩＤタグ４は、簡易な構造であるにも関わらず、シールパット形状に合わせた周波数特性を改良し、従来よりも読み取り（通信）距離拡大することができる。この結果、目視のように鉄鋼商品に近づくことなく、個体識別管理ができるようになる。
　すなわち、本実施形態では、コイル材１の中央の空洞内にＲＦＩＤタグを設置する場合に比べて、ＲＦＩＤタグ４を読み取り可能な位置の自由度（範囲）が向上する。 Further, since the seal pad 3 with the RFID tag is used in the packing paper, individual identification management of the coil material 1 can be performed both after packing and after unpacking. Even if the packing paper is removed or replaced in the middle, the tags are not mistaken, so that the coil material 1 can be identified more reliably.
In addition, although the RFID tag 4 of the present embodiment has a simple structure, it is possible to improve the frequency characteristics according to the shape of the seal pad and extend the reading (communication) distance as compared with the conventional one. As a result, it becomes possible to perform individual identification management without approaching the steel product as visually.
That is, in this embodiment, the degree of freedom (range) of the position where the RFID tag 4 can be read is improved compared to the case where the RFID tag is installed in the central cavity of the coil material 1 .
　ここで、ＲＦＩＤタグへの個体識別情報の格納は、ライターによる書き込みで実行される。個体識別情報の格納は、タグをコイル材に取り付けた後でも良いし、取付け前でも良い。
　また、コイル材１に取り付けたＲＦＩＤタグ４からの個体識別情報の読み取りは、リーダーによって実行される。リーダーは、例えば、コイル材１の搬送を行うコイルリフターなどの搬送装置に設けておく。この場合、コイル材１の入庫や出庫など、コイル材を搬送する際に、コイル材１の個体識別管理を行うことができる。 Here, individual identification information is stored in the RFID tag by writing with a writer. The individual identification information may be stored after or before attaching the tag to the coil material.
Further, reading of individual identification information from the RFID tag 4 attached to the coil material 1 is executed by a reader. For example, the reader is provided in a conveying device such as a coil lifter that conveys the coil material 1 . In this case, individual identification management of the coil material 1 can be performed when the coil material 1 is transported, such as when the coil material 1 is stored or delivered.
　図７に、コイルリフター１００でのコイル材搬送時の状態の例を示す。なお、図７では、分かり易くするため、結束バンド２を省略している。
　図７のように、本実施形態では、コイルリフター１００の本体（非可動部）に設置したリーダー１０１によって、コイル材１に取り付けたＲＦＩＤタグ４からの情報の読み取りができる。すなわち、コイルリフター１００の可動部に限定してリーダー１０１を取り付けなくても、ＲＦＩＤタグ４からの情報の読み取りが可能である。
　また、リーダーは、作業員がハンドリング可能なハンドタイプであっても良い。この場合、例えば、トラックなどの搬送車両に積載状態のコイル材１や、倉庫に置かれたコイル材１に作業員が近づいて、コイル材１の識別を行うことが可能となる。 FIG. 7 shows an example of the state of the coil lifter 100 when conveying the coil material. Note that the binding band 2 is omitted in FIG. 7 for the sake of clarity.
As shown in FIG. 7, in this embodiment, information can be read from the RFID tag 4 attached to the coil material 1 by a reader 101 installed on the main body (non-moving part) of the coil lifter 100 . That is, it is possible to read information from the RFID tag 4 without attaching the reader 101 only to the movable portion of the coil lifter 100 .
Also, the reader may be of a hand type that can be handled by a worker. In this case, for example, a worker can approach the coil material 1 loaded on a transport vehicle such as a truck or the coil material 1 placed in a warehouse to identify the coil material 1 .
　リーダーは、書き込み機能を備えたリーダライターであっても良い。この場合、ＲＦＩＤタグからの情報の読み取りと共に、ＲＦＩＤタグへの、追跡情報などの情報の追加や変更を行ってもよい。
　なお、アンテナ６の一部をコイル材１に電気的に接続することで、ＲＦＩＤタグ４の通信距離が、理論値で約２倍以上、現場検証で約１．２倍以上の大きくなったことを確信している。 The reader may be a reader/writer with writing capability. In this case, along with reading information from the RFID tag, information such as tracking information may be added or changed to the RFID tag.
Incidentally, by electrically connecting a part of the antenna 6 to the coil material 1, the communication distance of the RFID tag 4 was increased by about 2 times or more in theory, and by about 1.2 times or more in field verification. I'm sure
　＜変形例＞
　（１）上記説明では、基体をシールパット３から構成する場合を説明しているが、基体を、シールパット３とは別部品であっても良い。この場合、ＲＦＩＤタグ付きの基体を、シールパット３と同様に、結束バンド２とコイル材１との間に差し込むことで、コイル材１に取り付けると良い。
　また、ＲＦＩＤタグ付きの基体を、コイル材１の表面に、両面粘着テープで貼り付けても良い。ただし、貼り付け際の粘着剤がコイル材１表面に付着するため、それによってコイル材１の品質に悪影響が出る可能性がある。また、両面粘着テープはアンテナに触れないように設ける必要がある。また、テープの厚み分だけ、コイル材とアンテナとの間に隙間が形成される可能性がある。
　このため、基体を、結束バンド２とコイル材１との間に差し込むことで、コイル材１に取り付けることが好ましい。
　また、上述のようにシールパット３を基体とする方が好ましい。シールパット３を基体とした場合、ＲＦＩＤタグをコイル材１に取り付けるための新たな作業が不要となる。 <Modification>
(1) In the above description, the case where the base body is composed of the seal pad 3 has been described, but the base body may be a component separate from the seal pad 3 . In this case, it is preferable to attach the substrate with the RFID tag to the coil material 1 by inserting it between the binding band 2 and the coil material 1 like the seal pad 3 .
Alternatively, a base with an RFID tag may be attached to the surface of the coil material 1 with a double-sided adhesive tape. However, since the adhesive adheres to the surface of the coil material 1 at the time of attachment, the quality of the coil material 1 may be adversely affected. Also, the double-sided adhesive tape must be installed so as not to touch the antenna. Also, a gap corresponding to the thickness of the tape may be formed between the coil material and the antenna.
Therefore, it is preferable to attach the substrate to the coil material 1 by inserting it between the binding band 2 and the coil material 1 .
Further, it is preferable to use the seal pad 3 as the base as described above. When the seal pad 3 is used as the base, additional work for attaching the RFID tag to the coil material 1 is not required.
　（２）上記説明では、ＲＦＩＤタグ４のアンテナ６を、シールパット３の裏面まで延長して配置しているが、ＲＦＩＤタグ４のアンテナ６を、シールパット３のおもて面だけに配置しても良い。ただし、ＲＦＩＤタグ４のアンテナ６を、シールパット３の裏面まで延長して配置した方が、ＲＦＩＤタグ４の通信距離を稼ぐことができる。
　また、ＲＦＩＤタグは、図２のようなダイポール型に限定されない。図６に示すような、ループ型のアンテナパターンであっても良い。ただし、図６のような構成のＲＦＩＤタグでは、タグの基材としてのフィルム材７があることが好ましい。
　また、基体をバンド上に貼り付けることで、ＲＦＩＤタグ４をコイル材１に設けても良い。 (2) In the above description, the antenna 6 of the RFID tag 4 is arranged to extend to the back surface of the seal pad 3, but the antenna 6 of the RFID tag 4 is arranged only on the front surface of the seal pad 3. can be However, the communication distance of the RFID tag 4 can be increased by extending the antenna 6 of the RFID tag 4 to the rear surface of the seal pad 3 .
Also, the RFID tag is not limited to the dipole type as shown in FIG. A loop type antenna pattern as shown in FIG. 6 may be used. However, in the RFID tag configured as shown in FIG. 6, it is preferable that there is a film material 7 as a tag base material.
Alternatively, the RFID tag 4 may be provided on the coil material 1 by attaching the substrate onto the band.
　（その他）
　本開示は、次の構成も取り得る。
　（１）金属製の物品の表面に、絶縁材料からなる基体を介して、上記物品の個体識別情報を格納可能なＲＦＩＤタグを取り付け、上記ＲＦＩＤタグ内の個体識別情報によって上記物品の個体識別を行う、
　ことを特徴とする金属製物品の個体識別方法。
　（２）上記ＲＦＩＤタグは、上記基体における上記物品側の裏面とは反対側のおもて面側にＩＣチップが設けられ、そのＩＣチップに電気的に接続した無線通信用のアンテナが、上記基体のおもて面に沿って延在し、更に、そのアンテナの一部を、上記基体の裏面に配置して上記物品の金属面に接触させる。 (others)
The present disclosure can also take the following configuration.
(1) An RFID tag capable of storing individual identification information of the article is attached to the surface of a metal article via a substrate made of an insulating material, and the individual identification information of the article is used to identify the article. conduct,
A method for individual identification of metal articles characterized by:
(2) The RFID tag has an IC chip provided on the front surface of the base body opposite to the back surface of the article, and the antenna for wireless communication electrically connected to the IC chip Extending along the front surface of the substrate, a portion of the antenna is positioned on the back surface of the substrate to contact the metal surface of the article.
　（３）上記ＲＦＩＤタグを取り付けた上記物品は梱包紙で梱包され、その梱包された状態で物品の個体識別を行う。
　（４）上記金属製の物品は、金属帯をロール状に巻きつけられ結束バンドで拘束されてなるコイル材であり、
　上記基体は、上記コイル材の表面と上記結束バンドとの間に差し込まれる差し込み部を有し、上記差し込み部以外の位置に上記ＲＦＩＤタグが設けられ、上記差し込みでコイル材表面に取り付けられる。 (3) The article to which the RFID tag is attached is packed with packing paper, and individual identification of the article is performed in the packed state.
(4) The metal article is a coil material formed by winding a metal strip into a roll and restraining it with a binding band,
The base body has an insertion portion inserted between the surface of the coil material and the binding band, the RFID tag is provided at a position other than the insertion portion, and is attached to the surface of the coil material by the insertion.
　（５）上記基体は、上記結束バンドを結束する際に、上記コイル材の表面と上記結束バンドとの間に配置されるシールパットである。
　（６）金属帯をロール状に巻きつけられ結束バンドで拘束されてなるコイル材における上記コイル材の表面と上記結束バンドとの間に配置されるシールパットであって、
　そのシールパットの表面にＲＦＩＤタグを備える。 (5) The base body is a seal pad that is arranged between the surface of the coil material and the binding band when binding the binding band.
(6) A seal pad disposed between the binding band and the surface of the coil material obtained by winding a metal strip in a roll and restraining it with a binding band,
An RFID tag is provided on the surface of the seal pad.
　（７）上記ＲＦＩＤタグは、シールパットのおもて面側にＩＣチップが設けられ、そのＩＣチップに電気的に接続した無線通信用のアンテナが、シールパットの上記おもて面に沿って延在し、そのアンテナの一部が、シールパットの裏面に配置されている。
　（８）本開示のＲＦＩＤタグ付きのシールパットを備えたコイル材。
　（９）上記ＲＦＩＤタグのピーク周波数が、９００ＭＨｚ～９６０ＭＨｚの範囲内にあり、上記ＲＦＩＤの通信可能な距離が、交信角度０度及び４５度で２ｍ以上である。 (7) The RFID tag has an IC chip provided on the front surface side of the seal pad, and an antenna for wireless communication electrically connected to the IC chip extends along the front surface of the seal pad. A portion of the antenna is located on the back surface of the seal pad.
(8) A coil material provided with a seal pad with an RFID tag of the present disclosure.
(9) A peak frequency of the RFID tag is in the range of 900 MHz to 960 MHz, and a communicable distance of the RFID is 2 m or more at communication angles of 0 degrees and 45 degrees.
　ここで、本願が優先権を主張する、日本国特許出願２０２１－１１７６４２（２０２１年０７月１６日出願）の全内容は、参照により本開示の一部をなす。ここでは、限られた数の実施形態を参照しながら説明したが、権利範囲はそれらに限定されるものではなく、上記の開示に基づく各実施形態の改変は当業者にとって自明なことである。 Here, the entire contents of Japanese Patent Application No. 2021-117642 (filed on July 16, 2021), to which this application claims priority, constitute a part of this disclosure by reference. Although described herein with reference to a limited number of embodiments, the scope of rights is not limited thereto, and modifications of each embodiment based on the above disclosure will be obvious to those skilled in the art.
１ コイル材（金属製の物品）
２ 結束バンド
３ シールパット（基体）
３Ａ 差し込み部
３Ｂ 本体部
４ ＲＦＩＤタグ
５ ＩＣチップ
６ アンテナ
６Ａ 周波数調整部
６Ｂ 外周部 1 Coil material (metal article)
2 Binding band 3 Seal pad (substrate)
3A insertion portion 3B body portion 4 RFID tag 5 IC chip 6 antenna 6A frequency adjustment portion 6B outer peripheral portion

Claims (8)

  1. 　金属製の物品の表面に、絶縁材料からなる基体を介して、上記物品の個体識別情報を格納可能なＲＦＩＤタグを取り付け、上記ＲＦＩＤタグ内の個体識別情報によって上記物品の個体識別を行う、
    　ことを特徴とする金属製物品の個体識別方法。     An RFID tag capable of storing individual identification information of the article is attached to the surface of a metal article via a base made of an insulating material, and individual identification of the article is performed by the individual identification information in the RFID tag.
    A method for individual identification of metal articles characterized by:
  2. 　上記ＲＦＩＤタグは、上記基体における上記物品側の裏面とは反対側のおもて面側にＩＣチップが設けられ、そのＩＣチップに電気的に接続した無線通信用のアンテナが、上記基体のおもて面に沿って延在し、更に、そのアンテナの一部を、上記基体の裏面に配置して上記物品の金属面に接触させる、
    　ことを特徴とする請求項１に記載した金属製物品の個体識別方法。     In the RFID tag, an IC chip is provided on the front side of the base body opposite to the back side of the article, and an antenna for wireless communication electrically connected to the IC chip is attached to the base body. extending along the front surface and having a portion of the antenna disposed on the back surface of the substrate and in contact with the metal surface of the article;
    The method for individual identification of metal articles according to claim 1, characterized in that:
  3. 　上記ＲＦＩＤタグを取り付けた上記物品は梱包紙で梱包され、その梱包された状態で物品の個体識別を行う、
    　ことを特徴とする請求項１又は請求項２に記載した金属製物品の個体識別方法。     The article with the RFID tag attached is packed with packing paper, and the article is individually identified in the packed state.
    3. The method for individual identification of metal articles according to claim 1 or 2, characterized in that:
  4. 　上記金属製の物品は、金属帯をロール状に巻きつけられ結束バンドで拘束されてなるコイル材であり、
    　上記基体は、上記コイル材の表面と上記結束バンドとの間に差し込まれる差し込み部を有し、上記差し込み部以外の位置に上記ＲＦＩＤタグが設けられ、上記差し込みでコイル材表面に取り付けられる、
    　ことを特徴とする請求項１～請求項３のいずれか１項に記載した金属製物品の個体識別方法。     The metal article is a coil material obtained by winding a metal strip into a roll and restraining it with a binding band,
    The base body has an insertion portion inserted between the surface of the coil material and the binding band, the RFID tag is provided at a position other than the insertion portion, and is attached to the surface of the coil material by the insertion.
    The method for individual identification of metal articles according to any one of claims 1 to 3, characterized in that:
  5. 　上記基体は、上記結束バンドを結束する際に、上記コイル材の表面と上記結束バンドとの間に配置されるシールパットである、
    　ことを特徴とする請求項４に記載した金属製物品の個体識別方法。     The base is a seal pad that is arranged between the surface of the coil material and the binding band when binding the binding band.
    5. The method for individual identification of metal articles according to claim 4, wherein:
  6. 　金属帯をロール状に巻きつけられ結束バンドで拘束されてなるコイル材における上記コイル材の表面と上記結束バンドとの間に配置されるシールパットであって、
    　そのシールパットの表面にＲＦＩＤタグを備える、ことを特徴とするシールパット。     A seal pad disposed between the binding band and the surface of the coil material obtained by winding a metal strip in a roll and restraining it with a binding band,
    A seal pad comprising an RFID tag on the surface of the seal pad.
  7. 　上記ＲＦＩＤタグは、シールパットのおもて面側にＩＣチップが設けられ、そのＩＣチップに電気的に接続した無線通信用のアンテナが、シールパットの上記おもて面に沿って延在し、そのアンテナの一部が、シールパットの裏面に配置されている、
    　ことを特徴とする請求項６に記載したシールパット。     The RFID tag has an IC chip provided on the front surface side of the seal pad, and an antenna for wireless communication electrically connected to the IC chip extends along the front surface of the seal pad. , part of the antenna is located on the back of the seal pad,
    The seal pad according to claim 6, characterized by:
  8. 　請求項６又は請求項７に記載のＲＦＩＤタグ付きのシールパットを備えたコイル材。 A coil material provided with the seal pad with the RFID tag according to claim 6 or claim 7.
PCT/JP2022/027743 2021-07-16 2022-07-14 Method for individually identifying metal article, seal pad, and coil material WO2023286843A1 (en)

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CN202280049846.7A CN117642748A (en) 2021-07-16 2022-07-14 Individual identification method for metal article, gasket and coiled material

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04298492A (en) * 1991-03-25 1992-10-22 Nippon Steel Corp Inventory-taking of thin steel plate in coil
JP2002157569A (en) * 2000-09-07 2002-05-31 Toppan Printing Co Ltd Ic tag inclusion body
JP2003058838A (en) * 2001-08-09 2003-02-28 Furukawa Electric Co Ltd:The Article management system
JP2007171301A (en) * 2005-12-19 2007-07-05 Toppan Printing Co Ltd Electronic tag and metallic article on which same is stuck

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06100324B2 (en) 1992-12-16 1994-12-12 株式会社土井製作所 Far infrared dry incinerator
JP4298492B2 (en) 2003-12-19 2009-07-22 川崎重工業株式会社 Engine with variable valve timing mechanism and motorcycle equipped with the engine
JP4867361B2 (en) 2006-01-24 2012-02-01 オムロン株式会社 RFID tag manufacturing method
JP5971857B2 (en) 2012-12-04 2016-08-17 新日鐵住金株式会社 Metal coil management method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04298492A (en) * 1991-03-25 1992-10-22 Nippon Steel Corp Inventory-taking of thin steel plate in coil
JP2002157569A (en) * 2000-09-07 2002-05-31 Toppan Printing Co Ltd Ic tag inclusion body
JP2003058838A (en) * 2001-08-09 2003-02-28 Furukawa Electric Co Ltd:The Article management system
JP2007171301A (en) * 2005-12-19 2007-07-05 Toppan Printing Co Ltd Electronic tag and metallic article on which same is stuck

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