JP2004140513A - Antenna for reader / writer and article control shelf provided with the same - Google Patents

Antenna for reader / writer and article control shelf provided with the same Download PDF

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JP2004140513A
JP2004140513A JP2002301944A JP2002301944A JP2004140513A JP 2004140513 A JP2004140513 A JP 2004140513A JP 2002301944 A JP2002301944 A JP 2002301944A JP 2002301944 A JP2002301944 A JP 2002301944A JP 2004140513 A JP2004140513 A JP 2004140513A
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Japan
Prior art keywords
antenna
writer
reader
ic card
magnetic field
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JP2002301944A
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JP3958667B2 (en
Inventor
Osamu Furuya
Katsuhisa Okuwaki
Yuji Saiyama
Yoshinori Tanaka
古屋 修
奥脇 勝久
田中 義則
雜山 裕治
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Hitachi Kokusai Electric Inc
株式会社日立国際電気
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an antenna for reader / writer and an article control shelf with a simple configuration without the need for using many conductor materials capable of easily extending an influencing range of a magnetic field generated from a loop antenna on an IC card within a prescribed range or easily extending the prescribed range wherein the magnetic field generated from the IC card can be detected thereby to be surely capable of performing communication even when the position of the IC card with respect to the loop antenna is more ore less deviated and controlling articles with excellent reliability. <P>SOLUTION: In the antenna 2A for the reader / writer configured to arrange conductors in a way of interlinking with the magnetic field and for performing radio communication with the IC card, at least parts of the cross section of the conductors are shaped to be extended to a range of detecting the magnetic field. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】 [0001]
【発明の属する技術分野】 BACKGROUND OF THE INVENTION
本発明は、物品に取り付けられたICカードと無線通信を行うリーダライタ用アンテナ及びリーダライタ用のアンテナが物品を収納するための棚に組み込まれた物品管理棚に関するものである。 The present invention relates to an article management shelf built into a shelf for the antenna for reader writer antenna and the reader-writer to perform IC card and a wireless communication attached to the article accommodating the article.
【0002】 [0002]
【従来の技術】 BACKGROUND OF THE INVENTION
ICカードとリーダライタを用い、無線通信により物品の管理を行う物品管理システムは、ICカードとリーダライタとの間で非接触で物品に関する情報を送受することができ、バーコードによる管理に比して、物品の所在状況の管理等が極めて簡単に行い得ることから、最近、種々の物品管理に適用されつつある。 Using an IC card and the reader-writer, an article management system for managing an article by wireless communication can send and receive information about the article in a non-contact between the IC card and the reader-writer, compared with the control by the bar code Te, since the management of location conditions of the article may be carried out very simply, recently, it is applied to various article management there.
【0003】 [0003]
本出願人は、既にこのような物品管理システムを図書館等に適用し、従来の貸出業務に加え、リアルタイムで書籍の位置情報を得、貸出状況の把握、書籍の所在状況の把握を行うことにより、図書の管理を行えるようにした物品管理システムを提案している(例えば、特許文献1参照)。 The applicant has already applied such article management system in the library or the like, in addition to the conventional lending, real-time to obtain a location information of the book, grasp the rental situation, by performing the grasping books whereabouts situation proposes an article management system to allow the management of books (e.g., see Patent Document 1).
【0004】 [0004]
図6は一つの物品管理棚を示す斜視図である。 6 is a perspective view showing one article management shelf.
物品管理棚10Aには、上下に平行に複数段(図示では3段)設けられた棚板1a,1b,1cにより3つの棚が構成されている。 The article management shelf 10A, parallel to a plurality of stages in the vertical (three stages in the illustrated) provided with shelves 1a, 1b, three shelves by 1c is constituted.
各棚板1a,1b,1cにおいて、棚板1aの面内にはワンループアンテナ2Aを形成するループ線が埋設され、棚板1bの面内にはツーループアンテナ2Bを形成するループ線が埋設され、棚板1cの面内にはフォーループアンテナ2Cを形成するループ線が埋設されている。 The shelf plates 1a, 1b, in 1c, in the plane of the shelf plate 1a is embedded loop line to form a one-loop antenna 2A, the plane of the shelf board 1b is embedded loop line to form a two-loop antenna 2B , it is in the plane of the shelf plate 1c is embedded loop line to form a Four loop antenna 2C.
【0005】 [0005]
ワンループアンテナ2Aは、棚板1aの外形状に沿った長方形状をなし、ツーループアンテナ2Bは、棚板1bの形状のほぼ半分の位置で折り返した形状を有する8の字形状をなし、フォーループアンテナ2Cは棚板1cのほぼ4分割した3ヶ所の位置で折り返した形状を有している。 One loop antenna 2A is a rectangular shape along the outer shape of the shelf plate 1a, two-loop antenna. 2B, without the 8-shaped having a shape folded back at approximately half the shape of the shelf plate 1b, Four loop antenna 2C has a shape folded at the position of approximately 4 divided three places of the shelf plate 1c.
なお、これらループアンテナ2A,2B,2Cは後述する同調回路と接続しており、この同調回路が同軸ケーブル20を介して、リーダライタ6に接続されている。 Note that these loop antennas 2A, 2B, 2C are connected to the tuning circuit to be described later, the tuning circuit through the coaxial cable 20 is connected to the reader writer 6.
【0006】 [0006]
図7には同調回路3の一例を示す。 The Figure 7 shows an example of the tuning circuit 3. 同調回路3はトランス3aとコンデンサ3bで基板上に構成され、ループ線2aと共振を取ってインピーダンス整合を図り、同軸ケーブル20に接続されている。 Tuning circuit 3 is configured on the substrate in trans 3a and a capacitor 3b, achieving impedance matching taking a resonant loop line 2a, and is connected to the coaxial cable 20. また、同軸ケーブル20はコネクタ20aを介してリーダライタ6に接続されている。 Further, the coaxial cable 20 is connected to the reader writer 6 via the connector 20a.
【0007】 [0007]
図8はICカードが取り付けられた書籍を示す斜視図であり、ICカード5はタグ状をなし、書籍4の背表紙4aの下部に貼付けられている。 Figure 8 is a perspective view showing a book IC card is installed, the IC card 5 without a tag shape, are attached on the lower portion of the spine 4a books 4. ICカード5は図9に示すように、ループ状をなすカードアンテナ5aとそれに接続されたICチップ5bとからなる。 IC card 5, as shown in FIG. 9, consisting of a card antenna 5a and the IC chip 5b connected to it to form a loop. また書籍4の表紙下部には、その端部がICカード5の端部に近接するように共振カード7が貼付けられる。 Also on the cover bottom of book 4, its ends resonant card 7 is pasted so as to approach the end of the IC card 5. 共振カード7はこのカードアンテナ5aと共振して書籍の載置方向が異なる場合、例えばICカードとループアンテナが直接通信し難いような場合にも、共振カードの共振とループアンテナにより通信を可能としている。 If resonant card 7 to placing direction of the book resonates with the card antenna 5a are different, for example, when the IC card and the loop antenna can hardly communicate directly also as allows communication by the resonance and the loop antenna of the resonant card there.
【0008】 [0008]
図10は各棚板と書籍との配置関係を示したものであり、(a)は斜視図、(b)は側面図である。 Figure 10 is shows the arrangement relationship between the shelf plates and book, (a) is a perspective view, (b) is a side view. これらの図より明らかなように、ループアンテナ2Aや2Bのループコイルの垂直面内にICカード5のカードアンテナの面が位置するように書籍4の載置位置に対して各棚板1a、1bのループアンテナ2A,2Bが設けられている。 As apparent from these drawings, the loop antenna 2A and 2B each shelf plate 1a with respect to the mounting position of the books 4 as the surface of the card antenna of the IC card 5 in a vertical plane of the loop coils is located in, 1b loop antenna 2A, 2B is provided for.
【0009】 [0009]
【特許文献1】 [Patent Document 1]
特開2002−2917(第2頁、図1) Patent 2002-2917 (page 2, FIG. 1)
【0010】 [0010]
【発明が解決しようとする課題】 [Problems that the Invention is to Solve
上述したように従来の技術において、ループアンテナを構成する導体は、その長さ方向に断面形状が同一の円形をなすワイヤ等で構成される。 In the prior art as described above, the conductor constituting the loop antenna is configured cross-sectional shape in the longitudinal direction of the wire or the like which forms the same circle. この場合、そのループアンテナによって形成される磁界(磁束)は、図10(b)に示したように、導体を中心とする略円形となり、この磁界が作用する範囲は、半径でhcm(直径2hcm)程度である。 In this case, a magnetic field (magnetic flux) formed by the loop antenna, as shown in FIG. 10 (b), becomes substantially circular around the conductor, the range of action the magnetic field is the radius hcm (diameter 2hcm ) it is about. しかしながら、本棚等の棚板において、ICカードを取り付けた物品を収納する場合、その磁界の有効範囲は物品のICカードが取り付けられた部分が位置する可能性のある領域を広く全体的にカバーすることが好ましい。 However, the shelves of a bookshelf or the like, when receiving an article fitted with an IC card, the effective range of the magnetic field is totally covered wide areas which may be located the portion fitted with the IC card of the article it is preferable. 即ち、棚板等に取り付けられるループアンテナにおいては、その棚板の所定部分に沿うように磁界の形を成形することが望まれる。 That is, in the loop antenna to be attached to the shelf plate or the like, it is desired to mold the shape of the magnetic field along the predetermined portion of the shelves. 一方、ループアンテナを棚板全体に張り巡らせることは導体のコスト削減や省電力の観点から好ましくない。 Meanwhile, the Harimeguraseru the loop antenna to the entire shelf plate is not preferable from the viewpoint of cost reduction and power saving of the conductor. したがって、図6や図10に示したような、従来のループアンテナでは、書籍4が棚に対して例えば浅い位置に載置されるなどして、書籍4等の載置される位置が所定位置からずれるようなことがあると、ICカード5にループアンテナからの磁界が届かず、或いはICカード5からの磁界がループアンテナに届かず、ループアンテナによる通信が不能となり、もって、信頼性の高い物品管理ができなくなるという問題がある。 Accordingly, as shown in FIGS. 6 and 10, in the conventional loop antenna, and the like books 4 is placed, for example, a shallow position with respect to the shelf, the position to be placed in the book 4, etc. position When it is as deviated from, not reach the magnetic field from the loop antenna to the IC card 5, or the magnetic field from the IC card 5 does not reach the loop antenna becomes impossible to communicate due to the loop antenna, with a reliable there is a problem that can not be an article management.
【0011】 [0011]
そこで、本発明は上述した問題点を解決するために成されたものであり、簡単な構成において、ループアンテナから発生される磁界の影響範囲を容易に広げることができ、或いはICカードから発生される磁界を広範囲で検出することができ、もって、ICカードの位置が多少ずれたとしても、確実に通信を行うことができ、もって、信頼性に優れた物品管理を行うことができるリーダライタ用アンテナ及び物品管理棚を提供することを目的としている。 The present invention has been made to solve the above problems, in a simple configuration, the influence range of the magnetic field generated from the loop antenna can be easily widened, or is generated from the IC card that magnetic field can be detected in a wide range, with, even if the position of the IC card is slightly shifted, it is possible to reliably perform communication, it has been, for a reader writer that can perform excellent article management reliability and its object is to provide an antenna and article management shelf.
【0012】 [0012]
【課題を解決するための手段】 In order to solve the problems]
上述した課題を解決するため、本発明は、磁界と鎖交するように導体を配置して構成され、ICカードと無線通信を行うリーダライタ用アンテナであって、前記導体の少なくとも一部の断面形状が他の部分と異なる形状を有するものである。 To solve the problems described above, the present invention is constructed by arranging the conductors in the magnetic field interlinked so, a reader antenna writer to perform IC card and a wireless communication, at least a part of a cross section of the conductor shape and has a different shape to the other parts.
【0013】 [0013]
磁界は導体を周回するように発生するので、その一部の断面形状を他の部分と異ならせることで、その部分における磁界の検出領域或いは磁界の発生領域範囲を異ならせることができ、従って様々なリーダライタシステムの使用態様に適用させることができる。 Since the magnetic field is generated so as to surround the conductor, the part of the cross-sectional shape by varying the other portion, it is possible to vary the detection area or the generation region the magnetic field range of the magnetic field in that portion, thus various it can be applied to a mode of use of such a reader-writer system.
【0014】 [0014]
また、本発明のリーダライタ用アンテナにおいて、前記少なくとも一部の断面形状は、一方向に対して他の方向よりも長い扁平状に形成されていることを特徴とする。 Also, the reader antenna writer of the present invention, at least a portion of the cross-sectional shape, characterized in that it is formed in a long flat than other directions with respect to one direction.
【0015】 [0015]
また、本発明のリーダライタ用アンテナにおいて、前記一方向は、前記リーダライタ用アンテナが設けられる平板部の平面と平行な方向を有することを特徴とする。 Also, the reader antenna writer of the present invention, the one direction, and having a plane parallel to the direction of said plate reader writer antenna is provided.
【0016】 [0016]
また、本発明のリーダライタ用アンテナにおいて、前記導体は平面上に塗布された導電ペーストにより形成されることを特徴とする。 Also, the reader antenna writer of the present invention, the conductor is characterized as being formed by a conductive paste coated on the plane.
【0017】 [0017]
また、本発明は、物品に取り付けられたICカードと無線通信を行うリーダライタ用アンテナが前記物品を収納するための棚に組み込まれた物品管理棚において、前記リーダライタ用アンテナは、磁界と鎖交するように導体を配置して構成されるとともに、前記導体の少なくとも一部の断面形状が他の部分と異なる形状を有する。 Further, the present invention provides the article management shelf built into a shelf for the reader writer antenna for IC card and a wireless communication attached to the article accommodating the article, antenna the interrogator, a magnetic field with a chain intersect each with is constructed by placing a conductor, having at least a portion of the cross-sectional shape is different from the other partial shape of the conductor.
【0018】 [0018]
【発明の実施の形態】 DETAILED DESCRIPTION OF THE INVENTION
以下、本発明の実施の形態を図書管理に適用される物品(図書)管理棚に適用した場合に例をとって、図面を用いて説明する。 Hereinafter, taking an example in the case of applying the applicable article (book) management shelf embodiment the bookkeeping of the present invention will be described with reference to the drawings.
図1は一つの物品管理棚を示す斜視図である。 Figure 1 is a perspective view showing one article management shelf.
物品管理棚10Aは、従来技術に示したと同様に、上下に平行に複数段(図示では3段)設けられた棚板1a,1b,1cにより3つの棚を有している。 Article management shelf 10A, similar to that shown in the prior art, in parallel with a plurality of stages in the vertical (three stages in the illustrated) provided with shelves 1a, 1b, has three shelves by 1c.
そして、各棚板1a,1b,1cにおいて、棚板1aの下面にはワンループアンテナ2Aを形成するループ状導体が付設され、棚板1bの下面にはツーループアンテナ2Bを形成するループ状導体が付設され、棚板1cの下面にはフォーループアンテナ2Cを形成するループ状導体が付設されている。 Then, the shelf plates 1a, 1b, in 1c, the lower surface of the shelf plate 1a is attached a loop-like conductor forming a one-loop antenna 2A, the lower surface of the shelf plate 1b is looped conductor forming a two-loop antenna 2B It is attached, on the lower surface of the shelf plate 1c are attached a loop-like conductor forming a Four loop antenna 2C.
【0019】 [0019]
ワンループアンテナ2Aは、棚板1aの外形状に沿った長方形状をなし、ツーループアンテナ2Bは、棚板1bの形状のほぼ半分の位置で折り返した形状を有する8の字形状をなし、フォーループアンテナ2Cは棚板1cのほぼ4分割した3ヶ所の位置で折り返した形状を有している。 One loop antenna 2A is a rectangular shape along the outer shape of the shelf plate 1a, two-loop antenna. 2B, without the 8-shaped having a shape folded back at approximately half the shape of the shelf plate 1b, Four loop antenna 2C has a shape folded at the position of approximately 4 divided three places of the shelf plate 1c. これらループアンテナ2A,2B,2Cは従来技術で説明した同調回路3と接続しており、この同調回路3が同軸ケーブル20を介して、図1に示されるリーダライタ6に接続されている。 These loop antennas 2A, 2B, 2C is connected to the tuning circuit 3 described in the prior art, the tuning circuit 3 via the coaxial cable 20 is connected to the reader writer 6 shown in FIG.
【0020】 [0020]
図3はワンループアンテナ2Aを詳細に示す図であり、図4は図3のB−B線断面図である。 Figure 3 is a diagram showing a one-loop antenna 2A in detail, FIG. 4 is a sectional view taken along line B-B of FIG. ワンループアンテナ2Aは、その一部である棚の手前側に対応する部分(書籍を棚に入れた場合、ICカードが付されている背が位置する部分)が本の挿入した場合の奥側よりもより広い(a>b)平板状に形成され、その断面形状が本の挿入方向に対して長く、上下方向に短い扁平状の形状をなしている。 One loop antenna 2A is (when placed on the shelf a book, the portion where the back of the IC card is attached to position) portion corresponding to the front side of the shelf is a part from the back side of the case of inserts of the present also it formed wider (a> b) flat, long cross section shape to the insertion direction of the forms a short flat shape in the vertical direction. このループアンテナは例えば棚板として既存の木製やプラスチック製棚板を使用する場合、あるいはガラス製の棚板を使用する場合は図4に示されるように絶縁性フィルム21を介して棚板裏面に付設され、例えば絶縁性フィルム21に導電ペーストを塗布することで容易に形成することができる。 If the loop antenna using an existing wooden or plastic shelves as for example shelves or the shelf plate back surface through the insulating film 21 as when using a glass shelf plate is shown in FIG. 4 is attached, for example, it can be easily formed to by applying a conductive paste on the insulating film 21.
【0021】 [0021]
このようなループアンテナによれば、図4に示されるように、導体である導電ペーストのパターンを囲繞するように、該パターンに沿って磁界(磁束)22が形成されるため、磁界の及ぶ範囲を従来の断面円形導体に比べて広くすることができ、書籍等の載置位置がその広い範囲でずれても、ICカードは確実に磁界を検出でき、また逆にICカードもループアンテナからの磁界を検出することができる。 According to such a loop antenna, as shown in FIG. 4, so as to surround the pattern of the conductive paste is a conductor, a magnetic field (magnetic flux) 22 along the pattern is formed, over which the magnetic field range the can be wider than the conventional circular cross section conductors, also shifted the mounting position, such as books in its wide range, IC card can be reliably detect a magnetic field, also IC cards from the loop antenna in the opposite it is possible to detect the magnetic field. これにより、通信の信頼性を向上させることができる。 Thus, it is possible to improve the reliability of communication. 即ち、本発明によれば、一つのループアンテナにおいて、磁界の検出範囲を広くする必要がある位置に対応する導体部分のみの断面形状を、その検出範囲を拡大する方向に延ばす(広げる)ことにより、最小限の導体材料を用いて広範囲の磁界検出をカバーすることができることとなる。 That is, according to the present invention, in one of the loop antenna, the cross-sectional shape of only the conductive portion corresponding to the position where it is necessary to widen the detection range of the magnetic field, extending in a direction to expand the detection range (spread) that the , it becomes possible to cover a wide range of magnetic field detection with a minimum of conductive material. なお、本例によれば、棚板の手前側の奥行き方向において、磁界の影響範囲をおよそ2hからa+2hに広げることができ、また、高さ方向(棚板と垂直方向)にもaの値に対応する高さ領域まで広げることができる。 Incidentally, according to this embodiment, in the depth direction of the front side of the shelf plate can be widened approximately 2h the influence range of the magnetic field in a + 2h, also in the height direction (shelves and vertical) of a value it can be extended to a height area corresponding to. このaの値(ループアンテナを構成する導体の断面幅)は、棚板及びそれに収納する物品及びそれに用いられるICカードの取り付け位置等に鑑み、物品の収納においてそのICカードの位置がループアンテナに対してどの程度変動するかに基づいて設定することができる。 The value of the a (cross-sectional width of the conductor forming the loop antenna), in view of the shelf plate and the article and the mounting position of the IC card used therein for accommodating it, the position of the IC card in the housing of an article to the loop antenna it can be set on the basis of how much change for.
【0022】 [0022]
なお、図5に示すように、ワンループアンテナ2A同様、ツーループアンテナ2B、フォーループアンテナ2Cについても、その一部である棚の手前側に位置する部分が平板状に形成され、その断面形状が本の挿入方向に長く、上下方向に短い扁平状の形状に形成されている。 As shown in FIG. 5, like the one loop antenna 2A, two-loop antenna 2B, for even Four loop antenna 2C, a portion located in front of the shelf is a part is formed in a plate shape, its cross section long in the insertion direction of the is formed in a short flat shape in the vertical direction.
【0023】 [0023]
なお、本実施の形態において、3段の管理棚において、それぞれワンループ、ツーループ、フォーループのアンテナを設けるようにした理由について以下に説明すると、各ループアンテナ2A,2B,2Cにおいて鎖交する磁束は、例えば、図2において、フォーループアンテナ2Cに(c)に示すように磁束Φ1,Φ2が発生した場合、これらは、ツーループアンテナ2Bに対しては(b)に示すように鎖交し、これら磁束は互いにうち消されて相殺され(Φ3=0)、ツーループアンテナ2Bにおいて誘導起電力が発生されることはなく、また、ワンループアンテナ2Aに対しては(c)に示すように鎖交し、やはりこれら磁束は互いにうち消されて相殺され(Φ4=0)、ワンループアンテナ2Aにおいて誘導起電力が発生されることは In the present embodiment, in the management shelf 3 stages, each one-loop, Tsurupu and will be described below reasons be provided an antenna Four loops, each loop antenna 2A, 2B, magnetic flux interlinking the 2C are , for example, in FIG. 2, Four loop antenna 2C to the magnetic flux as shown in (c) .phi.1, if Φ2 occurs, they are for two-loop antenna 2B interlinked (b), the these flux are canceled out is canceled out each other (Φ3 = 0), never induced electromotive force is generated in a two-loop antenna 2B, also, for the one-loop antenna 2A as shown in (c) interlinking and, also these flux are canceled are canceled out each other (Φ4 = 0), the induced electromotive force is generated in the one-loop antenna 2A is い。 There. 勿論、図2より明らかなように、ツーループアンテナ2Bとワンループアンテナ2Aとの関係においても、同じとなり、一方のループアンテナで発生した磁束が他方のループアンテナと鎖交する磁束の総数は零となり、やはり誘導起電力の発生が防止される。 Of course, as is clear from FIG. 2, also in relation to the two-loop antenna 2B and one loop antenna 2A, the total number of the same, and the one of the magnetic flux generated by the loop antenna other loop antenna magnetic flux interlinking becomes zero , generation of the induced electromotive force is also prevented.
【0024】 [0024]
【発明の効果】 【Effect of the invention】
以上に詳述したように、本発明は、簡単な構成において、また導体材料を多量に必要とすることなく、ループアンテナから発生される磁界のICカードに対する影響範囲を所定範囲において容易に広げることができ、或いはICカードから発生される磁界を検出することができる所定範囲を容易に広げることができ、従って、ループアンテナに対するICカードの位置が多少ずれたとしても、確実に通信を行うことができ、もって、信頼性に優れた物品管理を行うことができるリーダライタ用アンテナ及び物品管理棚を提供することができるという効果を奏する。 As described above in detail, the present invention provides a simple structure and without the large amounts require conductive material, easily spread that the influence range for IC card of the magnetic field generated from the loop antenna in a predetermined range can be, or a predetermined range capable of detecting the magnetic field generated from the IC card can be easily spread, therefore, even if the position of the IC card for the loop antenna is slightly shifted, it is possible to reliably communicate it can, have been, there is an effect that it is possible to provide an antenna and article management shelf reader writer can perform excellent article management reliability.
【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS
【図1】実施の形態1における物品管理棚を示す斜視図である。 1 is a perspective view showing the article management shelf in the first embodiment.
【図2】実施の形態1の動作を示す図である。 2 is a diagram illustrating the operation of the first embodiment.
【図3】ワンループアンテナと棚板を示す斜視図である。 3 is a perspective view of a one-loop antenna and the shelf plate.
【図4】図3のB−B線断面図である。 4 is a sectional view taken along line B-B of FIG.
【図5】ワンループアンテナ、ツーループアンテナ、フォーループアンテナを示す斜視図である。 [5] One loop antenna, two-loop antenna is a perspective view showing the Four loop antenna.
【図6】従来の物品管理棚を示す斜視図である。 6 is a perspective view of a conventional article management shelf.
【図7】同調回路を示す回路図である。 7 is a circuit diagram showing a tuning circuit.
【図8】書籍にICカードを貼着した状態を示す斜視図である。 FIG. 8 is a perspective view showing a state in which stuck the IC card to book.
【図9】ICカードを示す簡略構成図である。 9 is a simplified schematic diagram showing an IC card.
【図10】ループアンテナと書籍の配置関係を示す図である。 10 is a diagram showing the placement of the loop antenna and book.
【符号の説明】 DESCRIPTION OF SYMBOLS
1a,1b,1c 棚板、2A ワンループアンテナ、2B ツーループアンテナ、2C フォーループアンテナ、4 書籍、5 ICカード、6 リーダライタ、10A 物品管理棚、21 絶縁性フィルム。 1a, 1b, 1c shelves, 2A one loop antenna, 2B-to-loop antenna, 2C Four loop antenna 4 books, 5 IC card, 6 writer, 10A article management shelf 21 insulating film.

Claims (5)

  1. 磁界と鎖交するように導体を配置して構成され、ICカードと無線通信を行うリーダライタ用アンテナであって、 Is constructed by arranging the conductors in the magnetic field interlinked so, a reader antenna writer to perform IC card and a wireless communication,
    前記導体の少なくとも一部の断面形状が他の部分と異なる形状を有するリーダライタ用アンテナ。 Antenna writer having at least a portion of the cross-sectional shape is different from the other partial shape of the conductor.
  2. 請求項1に記載のリーダライタ用アンテナにおいて、 In the reader antenna writer according to claim 1,
    前記少なくとも一部の断面形状は、一方向に対して他の方向よりも長い扁平状に形成されていることを特徴とするリーダライタ用アンテナ。 Wherein at least a portion of the cross-sectional shape, the reader writer antenna, characterized in that it is formed in a long flat than other directions with respect to one direction.
  3. 請求項2に記載のリーダライタ用アンテナにおいて、 In the reader antenna writer according to claim 2,
    前記一方向は、前記リーダライタ用アンテナが設けられる平板部の平面と平行な方向を有することを特徴とするリーダライタ用アンテナ。 The one direction, the reader writer antenna, characterized in that it comprises a plane parallel to the direction of said plate reader writer antenna is provided.
  4. 請求項1乃至請求項3のいずれかに記載のリーダライタ用アンテナにおいて、 In the reader antenna writer according to any one of claims 1 to 3,
    前記導体は平面上に塗布された導電ペーストにより形成されることを特徴とするリーダライタ用アンテナ。 It said conductor antenna writer, characterized in that it is formed by the conductive paste coated on the plane.
  5. 物品に取り付けられたICカードと無線通信を行うリーダライタ用アンテナが前記物品を収納するための棚に組み込まれた物品管理棚において、 In the article management shelf built into a shelf for the reader writer antenna for IC card and a wireless communication attached to the article accommodating the article,
    前記リーダライタ用アンテナは、磁界と鎖交するように導体を配置して構成されるとともに、前記導体の少なくとも一部の断面形状が他の部分と異なる形状を有する物品管理棚。 The reader writer antenna, magnetic field while being configured by arranging the conductors interlinked so, the article management shelf having at least a portion of the cross-sectional shape is different from the other partial shape of the conductor.
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