JP2007241517A - Shoe enabling personal identification and security system using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shoe enabling personal identification giving no risk of card loss without movements of the upper half of the body and movements to search for a card, and also to provide a security system capable of improving convenience for construction and recognition by bringing the shoe enabling personal identification into contact with an object ground type reader. <P>SOLUTION: The shoe enabling personal identification is a shoe equipped with an IC tag for personal identification, wherein the IC tag consists of an IC chip and a transmission/reception antenna. This security system is configured of the shoe enabling personal identification, a reader and a host computer. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a shoe capable of individual identification and a security system using the shoe.

In recent years, a non-contact type individual identification system using an IC tag has been attracting attention as a system for managing the entire life cycle of goods in all business categories of manufacturing, distribution, sales, and recycling.
In particular, radio frequency type IC tags using UHF waves and microwaves are attracting attention due to the feature that an external antenna is attached to an IC chip and a communication distance of several meters is possible. Systems are being developed for the purpose of product history management and security management.

  Demonstration experiments using electromagnetic induction type IC tags using the 13.56 MHz band have been promoted in various industries such as apparel, home appliances, aviation, publishing, and agriculture. It is planned.

  In order to realize a large quantity of merchandise distribution and article management with a non-contact type individual identification system using an IC tag, it is necessary to attach an IC tag to each of the merchandise. For this purpose, a technique capable of mass-producing inexpensive IC tags and a technique for easily attaching IC tags to various shapes of adherends are indispensable.

  As a radio wave type IC tag using a microwave, for example, a tag using a TCP (Tape Carrier Package) type inlet developed by Hitachi, Ltd. and Renesas Technology Corp. is known. Here, the inlet is a non-contact type solid identification IC chip mounted on a transmission / reception antenna, and is an intermediate form of an IC tag.

As another inlet structure, for example, Hitachi, Ltd. has developed a structure in which an IC chip (hereinafter referred to as a double-sided electrode chip) in which one external electrode is formed on each of the front and back surfaces is sandwiched between excitation slit type dipole antennas. (See Patent Document 1).
Japanese Patent Laid-Open No. 2004-127230

  The dipole antenna structure having the excitation slit can match the impedance of the antenna and the input impedance of the IC chip by changing the width and length of the slit, and can obtain good communication characteristics.

On the other hand, regarding security systems using IC tags, there are many systems in which a tag formed in a card shape with an organic resin film such as vinyl chloride or PET is passed or held by a reader.
However, when the card is used, an operation of moving the upper body and an operation of searching for the card are necessary, and there is a risk of losing the card.

  The present invention has been made in view of the above, and it is possible to perform an operation of moving the upper body and an operation of searching for a card, and capable of individual identification without fear of losing the card, and a grounded reader as a target. The present invention provides a security system capable of improving convenience during construction and recognition by bringing shoes that can be individually identified into contact with each other.

That is, the present invention relates to the following items.
(1) A shoe provided with an individual identification IC tag, comprising an IC tag comprising an IC chip and a transmission / reception antenna, and capable of individual identification.
(2) The shoe capable of individual identification as described in (1) above, wherein the maximum length of the IC tag is 60 mm or less.
(3) The shoe capable of individual identification according to (1) or (2) above, wherein the length of the transmission / reception antenna is in a range of 30 mm to 60 mm.

(4) The shoe capable of individual identification according to any one of (1) to (3) above, wherein the IC tag is operated by a carrier wave of 2.45 GHz.
(5) An IC tag electrically connects an IC chip formed on each surface of a set of external electrodes facing each other, a transmission / reception antenna formed with a T-shaped slit, and the IC chip and the transmission / reception antenna. A shoe capable of individual identification according to any one of (1) to (4) above, wherein the shoe is an IC tag including a short-circuit plate connected to the device.
(6) The shoe capable of individual identification according to the above (5), wherein the communication distance is 10 cm to 30 cm.
(7) A security system comprising shoes, a reader, and a host computer capable of individual identification as described in (6) above.

  The individual-identifiable shoes obtained by the present invention do not perform the operation of moving the upper body and the operation of searching for a card, and there is no risk of losing the card, and it is possible to identify the target grounded reader By bringing the shoe into contact, it is possible to improve the convenience during construction and recognition of the security system, which is extremely suitable industrially.

Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, what was described below is shown as an example and this invention is not restrict | limited to these.
FIG. 1 is a diagram showing a form of a shoe capable of individual identification provided with an individual recognition IC tag according to an embodiment of the present invention. The shoe 1 capable of individual identification is provided on a resin shoe sole 5 with an IC. An IC tag 4 composed of a chip 2 and a transmission / reception antenna 3 is embedded.

  The IC tag has several types of operating frequencies depending on the operating principle and international standards, and any of them may be used. However, it is desirable that the IC tag is small in order to embed it in the sealing plug of the tubular container, and a coiled transmission / reception antenna is not required in the generally used 13.56 MHz, 860 to 960 MHz and 2.45 GHz bands. An IC tag using the 2.45 GHz band having a high frequency and a short wavelength is most suitable for miniaturization.

In order to improve reader recognition accuracy, the embedded portion of the IC tag is preferably 10 mm to 30 mm from the grounding surface.
When an IC tag of 2.45 GHz band is selected, there is a half-wave dipole antenna as an antenna for efficiently transmitting and receiving radio waves. The half wavelength of the 2.45 GHz radio wave is about 120 mm, and the reception efficiency decreases as the antenna becomes shorter. Therefore, the length of the transmission / reception antenna is preferably 58 mm.

  FIG. 2 is a diagram showing an example of a security environment using shoes capable of individual identification. When the shoe 1 capable of individual identification is brought into contact with the reader 6, the ID number of the IC tag 4 is set to the host computer 8. Forwarded to The host computer 8 recognizes whether the ID can be unlocked, and if the ID is unlockable, sends an unlock signal 9 to the door 10. In FIG. 2, 7 is ID number transfer.

Preferred examples of the IC tag structure include the following.
First, as an IC chip, an IC chip named “Muchip” (registered trademark) manufactured by Hitachi, Ltd. is preferable because it has a very small size of 0.4 mm × 0.4 mm.

  Next, as an IC chip mounting structure, an IC chip (hereinafter, referred to as a double-sided electrode chip) in which two external electrodes are formed on the front and back surfaces and a transmission / reception antenna having a T-shaped slit are electrically connected. A structure using a short-circuit plate connected to is suitable for miniaturization. An outline of the mounting structure is shown in FIG.

  FIG. 3A shows a schematic view of the IC tag as viewed from above, and a T-shaped slit 14 is formed in the transmission / reception antenna 13 having a long side of 30 mm to 60 mm. By changing the width in the range of 0.2 mm to 0.7 mm and the length in the range of 2.0 mm to 3.0 mm, the impedances of the transmission / reception antenna 13 and the double-sided electrode chip 18 can be matched.

  The external electrode on one side of the double-sided electrode chip 18 is connected to one side across the slit 14, and the external electrode on the opposite side to the side connected to the transmitting / receiving antenna 13 and the short-circuit portion 16 on the opposite side of the slit 14 are short-circuited. The connection is made through the plate 15.

  FIG. 3B shows a schematic cross-sectional view along A-A ′ of FIG. The double-sided electrode chip 18 includes an external electrode 11 formed on a circuit surface made of a semiconductor element and an external electrode 12 using the base substrate surface itself.

  One external electrode 12 of the double-sided electrode chip 18 and the transmitting / receiving antenna 13, the other external electrode 11 of the double-sided electrode chip 18, the short-circuit plate 15, and the transmitting / receiving antenna 13 on the opposite side of the double-sided electrode chip 18 with the slit 14 therebetween The short-circuit plates 15 are connected to each other via an anisotropic conductive adhesive 17.

  In FIG. 3B, the transmission / reception antenna 13 is a metal foil antenna 13a and a carrier film 13b that holds the metal foil antenna 13a, the short-circuit plate 15 is a metal foil 15a and a carrier film 15b that holds the metal foil 15b, and the anisotropic conductive adhesive 17 is The shapes each composed of the conductive particles 17a and the matrix resin 17b are shown.

EXAMPLES Hereinafter, although the suitable Example of this invention is described, this invention is not restrict | limited to these Examples.
First, an IC tag was produced. The used member is demonstrated below.
The IC chip was a mu chip manufactured by Hitachi, Ltd., and a double-sided electrode chip having external electrodes formed on both the front and back sides was used.

  The transmitting / receiving antenna is formed by etching a T-shaped slit having a width of 0.3 mm and a length of 3.0 mm on an aluminum foil having a thickness of 10 μm bonded to a PET (polyethylene terephthalate) film having a thickness of 50 μm. Was used. The size of the transmission / reception antenna was 58 mm long and 2.5 mm wide.

As a short-circuit plate for connecting the double-sided electrode type muchip and the transmitting / receiving antenna, a tape in which an aluminum foil having a thickness of 10 μm was bonded on a PET film having a thickness of 50 μm was used. The width of the tape was 1.2 mm, which was used after being cut into 3 mm.
An anisotropic conductive adhesive film [manufactured by Hitachi Chemical Co., Ltd., trade name AC-2052P] was used as the connection material.

  Next, an anisotropic conductive adhesive film, a double-sided electrode chip, an anisotropic conductive adhesive film, and a short-circuit plate are sequentially stacked at a predetermined position of the transmission / reception antenna, and the IC tag having the mounting structure shown in FIG. Obtained.

  Further, an IC tag was attached to a position 10 mm above the ground of the arch portion of the shoe sole shown in FIG. 1 and coated with resin. When a person wearing the resin-coated shoes stood on an IC tag reader [Hitachi Kokusai Electric Co., Ltd., MRJ300, output 300 mW], the IC tag attached to the shoes could be recognized. .

It is the schematic which shows an example of the shoes which can be individual-identified provided with the IC tag for individual recognition used as the Example of this invention. It is the schematic which shows an example of the security environment using the shoes in which individual identification is possible. (A) is the schematic which looked at the IC tag suitable for this invention from the upper surface, (b) is the sectional view on the A-A 'line of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shoes which can be individually identified IC chip 3 Transmission / reception antenna 4 IC tag 5 Shoe bottom 6 Reader 7 ID number transfer 8 Host computer 9 Unlock signal 10 Door 11 External electrode 12 External electrode 13 Transmission / reception antenna 13a Metal foil 13b Carrier film 14 Slit 15 Short-circuit plate 15a Metal foil 15b Carrier film 16 Short-circuit portion 17 Anisotropic conductive adhesive 17a Conductive particle 17b Matrix resin 18 Double-sided electrode chip

Claims (7)

  A shoe comprising an IC tag for individual identification, comprising an IC tag comprising an IC chip and a transmission / reception antenna.   The shoe capable of individual identification according to claim 1, wherein the maximum length of the IC tag is 60 mm or less.   The shoe capable of individual identification according to claim 1 or 2, wherein the length of the transmission / reception antenna is in a range of 30 mm to 60 mm.   The shoe capable of individual identification according to any one of claims 1 to 3, wherein the IC tag is operated by a carrier wave of 2.45 GHz.   An IC tag electrically connects an IC chip formed on each surface of a set of external electrodes facing each other, a transmission / reception antenna formed with a T-shaped slit, and the IC chip and the transmission / reception antenna. The shoe capable of individual identification according to any one of claims 1 to 4, wherein the shoe is an IC tag including a short-circuit plate.   The shoe capable of individual identification according to claim 5, wherein the communication distance is 10 cm to 30 cm. A security system comprising shoes, a reader, and a host computer capable of individual identification according to claim 6.

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