JP2006163719A - Identification tag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an identification tag for use in managing the status of people or commodities without violating the privacy of people who take action along with the identification tag. <P>SOLUTION: The identification tag 1a has an IC chip 13 that sends a characteristic output signal by radio when receiving a predetermined input signal by radio, and an oxidized part 15 that stops the IC chip 13 from sending the output signal once a predetermined period of time has elapsed. Once the predetermined period of time has elapsed, the oxidized part 15 of the identification tag 1a is oxidized to stop the IC chip 13 from sending the output signal, so as to prevent the behavior of the person who carries the identification tag 1a from being kept monitored. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an identification tag used for managing the state of a person or a product.

2. Description of the Related Art Conventionally, a system for managing product sales using an IC tag in a store such as a supermarket is known.
In such a system, an IC tag is attached to each product at a store, and information on the IC tag attached to the product selected for purchase by a customer is read in a non-contact manner using radio waves or the like. , Payment of goods and sales management are performed (for example, refer to Patent Document 1).
JP-A-8-202768

  By the way, in the above-mentioned patent document, there is no mention as to how the IC tag attached to the product after it is used for the payment of the product or for sales management is handled. In recent years, an IC tag and a reading device for the same that enable wireless communication over a relatively long distance have been developed.

  In view of such circumstances, when a purchaser of this product acts while wearing a product with an IC tag, a reading device that acquires information on this IC tag is installed within the purchaser's range of action. If so, the purchaser may be monitored for behavior.

  These problems are related to managing the state of people's movement (entrance, exit, passage, etc.) like an IC-tagged entrance ticket (ticket) used in expositions and public transportation. The same can be said for the IC tag used.

  In other words, if a reading device that acquires information on the IC tag is installed within the range of the person's action, the person who brings the admission ticket (ticket) containing the IC tag that is no longer necessary monitors the action. There is a risk of being.

  Accordingly, in view of such problems, an object of the present invention is to prevent the infringement of the privacy of a person who acts with this identification tag in an identification tag used for managing the state of a person or a product. And

  The identification tag according to claim 1, which has been made to achieve the above object, has a transmission means for transmitting a specific output signal by radio when receiving a predetermined input signal by radio, and a predetermined time. And a time stop means for stopping the transmission of the output signal by the transmission means.

  Therefore, according to such an identification tag, the transmission of the output signal by the transmission means can be stopped when a predetermined time elapses, so that the behavior of the person bringing the identification tag is continuously monitored. This can be prevented, and as a result, the privacy of the person who acts with the identification tag can be prevented from being infringed.

  In addition, in the identification tag according to claim 1, the time-stopping means disconnects or short-circuits at least one part of the wiring constituting the transmitting means as described in claim 2, or the resistance of the wiring It is desirable to stop transmission of the output signal by the transmission means by changing the value (hereinafter also referred to as disconnection or the like).

According to such an identification tag, the transmission means can be stopped reliably.
By the way, in the identification tag according to claim 2, the time stop means may be constituted by an electronic circuit that cuts at least one portion of the wiring constituting the transmission means. As described in claim 4, the time-stopping means is formed of a cover member in which a large number of perforations are formed and covers the transmitting means, or as described in claim 4, by absorbing moisture in the air, It is desirable that it is made of a material having a property of corroding.

According to such an identification tag, transmission of the output signal by the transmission means can be stopped with a simple configuration.
In particular, according to the identification tag of the third aspect, the transmission means can be protected and the wiring constituting the transmission means can be exposed to the outside air, so that the wiring can be oxidized. Further, the usable time of the identification tag can be adjusted by adjusting the size and number of perforations.

On the other hand, according to the identification tag of the fourth aspect, since the substance having the property of corroding the metal is used, the reliability of oxidizing or cutting the wiring can be improved.
In addition, as a substance which has the property which corrodes a metal by absorbing the water | moisture content in the air, what is necessary is just to use the substances which have deliquescence properties, such as magnesium chloride and potassium chloride, for example.

  Further, in the identification tag according to claim 4, when a plurality of perforations are formed and a cover member covering the transmitting means is provided, the time-stop means is a cover as described in claim 5. It is desirable to be sealed with a member.

  According to such an identification tag, it is possible to protect the transmission means, and by adjusting the size and number of perforations, the usable time of the identification tag (that is, the time stop means stops the transmission means). Can be adjusted.

  In addition, in the identification tag according to any one of claims 1 to 5, as described in claim 6, the identification tag is formed in a sheet shape, and is connected to a transmitting means. It is provided with a plurality of terminal portions exposed on the side surface, and is wound in a state of being bonded to a conductive base material before use of this identification tag. When this identification tag is used, a plurality of terminals are wound It is desirable to use the part and the conductive base material apart.

  According to such an identification tag, before using the identification tag, the function of the transmission means can be stopped by conducting between the plurality of terminal portions with the conductive base material. When this identification tag is used, the function of the transmission means can be activated.

  In particular, if the present invention (Claim 6) is applied to the identification tag according to Claim 3 or Claim 5, the identification tag is wound on the cover member before use of the tag. Since the perforation can be closed, the function of the time-stopping means can be stopped.

  Embodiments according to the present invention will be described below with reference to the drawings.

  The configuration of the identification tag 1a according to the first embodiment will be described with reference to FIG. 1A is a top view showing the identification tag 1a, FIG. 1B is a cross-sectional view taken along line AA of the identification tag 1a, and FIG. 1C is a cross-sectional view taken along line BB of the identification tag 1a. .

As shown in FIGS. 1A to 1C, the identification tag 1a is configured such that each component is sealed inside a base material 20 formed in a substantially rectangular sheet shape.
That is, inside the base material 20, the coil antenna 11 for transmitting and receiving radio waves, the IC chip 13 (transmitting means in the present invention), and the wiring 17 that electrically connects the coil antenna 11 and the IC chip 13. Terminal portions 19a and 19b.

The base material 20 is comprised from the cover member 21 and the insulation adhesion member 23, as shown in FIG.1 (b).
Innumerable perforations (not shown) are formed in the cover member 21, and each component arranged inside the base material 20 is set to come into contact with outside air. The coil antenna 11, the IC chip 13, and the wiring 17 are disposed between the cover member 21 and the insulating adhesive member 23.

The coil antenna 11 is made of, for example, a metal foil (copper foil or the like), and its length and width are set so as to easily receive radio waves of a predetermined frequency.
The IC chip 13 includes a capacitor (not shown) for determining the resonance frequency of the radio wave received by the coil antenna 11 and a storage unit (not shown) for storing an identification number assigned to each IC chip 13. ing.

  When the IC chip 13 receives a radio wave having a resonance frequency determined by the coil antenna 11 and an internal capacitor, the IC chip 13 generates an electromotive force by electromagnetic induction, and the identification number information stored in the internal storage unit is transmitted to the coil antenna. 11 to transmit.

  The wiring 17 includes a portion to be oxidized 15 (timed stop means in the present invention) that is configured by a thin film of a material that is easily oxidized (a material that has a high ionization tendency such as aluminum). This oxidized portion 15 is set so that its resistance value increases when it is oxidized, and breaks when oxidation further proceeds.

The terminal portions 19a and 19b are connected to both ends of the coil antenna 11 and are disposed so as to protrude from the surface of the base material 20 (see FIGS. 1A and 1B).
The identification tag 1a described above is used by being attached to the product (article) by bringing the insulating adhesive member 23 into contact with the product to be managed or the product possessed by the person to be managed. It becomes.

By the way, before the identification tag 1a is used, the state is as shown in FIG. Here, FIG. 2 is a side view showing a state of the identification tag 1a before use.
As shown in FIG. 2 (FIG. 2 (a) and FIG. 2 (b)), the identification tag 1a is connected and wound many times before being attached to a product or the like. It is stored in the state of the winding tag 31.

  Here, the winding tag 31 has a large number of identification tags 1a attached to the base member 25 side of the peeling member 29 composed of the base member 25 and the conductive adhesive member 27 (conductive base material in the present invention). It is comprised by.

The surface of the base member 25 on which the identification tag 1a is attached is surface-treated so that the identification tag 1a can be easily peeled off.
The conductive adhesive member 27 is made of a known weakly adhesive conductive adhesive, and the winding tag 31 is maintained by the adhesive force of the conductive adhesive member 27 so that the winding state of the winding tag 31 is not loosened. ing. In this state, the conductive adhesive member 27 is in close contact with the cover member 21 of the identification tag 1 a located on the outer peripheral side of the winding tag 31.

  That is, since the conductive adhesive member 27 blocks the perforations formed in the cover member 21 when the winding tag 31 is in the wound state, the components (particularly the oxidized portion 15) inside the identification tag 1a are exposed to the outside air. Preventing touching.

  In addition, when the winding tag 31 is in a wound state, the conductive adhesive member 27 contacts both the terminal portions 19a and 19b arranged to protrude from the surface side of the cover member 21, and between the terminal portions 19a and 19b. Short circuit. For this reason, since the coil antenna 11 in the identification tag 1a stops functioning as an antenna, the identification tag 1a becomes unusable.

  Here, when the identification tag 1 a is taken out from the winding tag 31 and used, the cover member 21 of the identification tag 1 a located on the outermost periphery of the winding tag 31 and the conductive material adjacent to the cover member 21 are used. By separating the adhesive member 27 from the adhesive member 27, a necessary amount of the identification tag 1a is taken out.

  When the identification tag 1a is pulled out in this way, the terminal portions 19a, 19b and the conductive adhesive portion 27 are peeled off, so that the short-circuit state between the terminal portions 19a, 19b is released and the identification tag 1a can be used. It becomes a state.

  At the same time, each component (particularly the oxidized portion 15) located inside the identification tag 1 a comes into contact with the outside air through the perforations formed in the cover member 21. 15 oxidation begins.

  In the identification tag 1a described in detail above, when receiving a predetermined input signal wirelessly, the IC chip 13 that transmits a specific output signal wirelessly, and the IC chip when a predetermined time elapses. 13 to be oxidized to stop the transmission of the output signal by 13.

  Therefore, according to such an identification tag 1a, the transmission of the output signal by the IC chip 13 can be stopped when a predetermined time elapses. Therefore, the action of the person bringing the identification tag 1a is reduced. It can be prevented from continuing to be monitored, and as a result, the privacy of the person who acts with the identification tag 1a can be prevented from being infringed.

  Further, in the oxidized portion 15, the transmission of the output signal by the IC chip 13 is stopped by cutting at least one portion of the wiring 17 constituting the IC chip 13 or changing the resistance value of the wiring 17. It is configured as follows.

According to such an identification tag 1a, the IC chip 13 can be reliably stopped.
The oxidized portion 15 includes a cover member 21 that has a large number of perforations and covers the IC chip 13.

According to such an identification tag 1a, transmission of an output signal by the IC chip 13 can be stopped with a simple configuration.
Further, according to the identification tag 1a, the IC chip 13 can be protected and the wiring 17 constituting the IC chip 13 can be exposed to the outside air, so that the wiring 17 can be oxidized. Further, the usable time of the identification tag 1a can be adjusted by adjusting the size and number of perforations.

  Further, the identification tag 1a is formed in a sheet shape, is connected to the IC chip 13, and includes a plurality of terminal portions 19a and 19b exposed on one surface of the identification tag 1a. Before use of 1a, it is wound in a state of being bonded to the conductive adhesive member 27, and when the identification tag 1a is used, the plurality of terminal portions 19a, 19b and the conductive adhesive member 27 are separated from each other. It is desirable.

  According to such an identification tag 1a, the function of the IC chip 13 is stopped by connecting the plurality of terminal portions 19a, 19b with the conductive adhesive member 27 before using the identification tag 1a. The function of the IC chip 13 can be activated when the identification tag 1a is used.

  Further, by winding the identification tag 1a before using the identification tag 1a, the perforations formed in the cover member 21 can be closed, so that the identification tag 1a can be covered before use. It is possible to prevent the oxidation unit 15 from being oxidized.

The embodiment of the present invention is not limited to the above-described embodiment, and can take various forms as long as it belongs to the technical scope of the present invention.
For example, in this embodiment, the oxidized part 15 is oxidized to cut at least one portion of the wiring 17 constituting the IC chip 13. The IC chip 13 may be configured to cut its own wiring based on a command from the timer circuit.

  Next, another form of identification tag 1b will be described. The identification tag 1b described in the present embodiment (embodiment 2) is different only in the configuration in the vicinity of the oxidized portion 15, and the other configurations are the same as the identification tag 1a in the first embodiment. . Therefore, in the present embodiment (embodiment 2), only the portions different from the identification tag 1a of the first embodiment will be described in detail, and the same portions as those of the identification tag 1a of the first embodiment are denoted by the same reference numerals. The description is omitted.

The identification tag 1b of the present embodiment will be described with reference to FIG. FIG. 3 is a cross-sectional view of the identification tag 1b shown in FIG.
As shown in FIG. 3, the identification tag 1b is made of metal by absorbing moisture in the air between the cover member 21 and the insulating adhesive member 23 and in contact with the oxidized portion 15. A corrosion promoting substance 51 having a property of promoting corrosion is enclosed. The corrosion promoting substance 51 is set so as to come into contact with the outside air through the perforations formed in the cover member 21 and absorb the moisture contained in the outside air.

In addition, as the corrosion promoting substance 51, for example, a substance having deliquescence such as magnesium chloride or potassium chloride can be used.
The amount and material of the corrosion promoting substance 51 enclosed in the identification tag 1b and the number and size of the perforations formed in the cover member 21 are determined by the time for which the identification tag 1b is used.

  The identification tag 1b described above is configured to corrode the oxidized portion 15 with a corrosion promoting substance 51 having a property of corroding a metal by absorbing moisture in the air.

Therefore, according to the identification tag 1b, the certainty of oxidizing or cutting the wiring 17 can be improved.
Further, the identification tag 1 b is provided with a number of perforations and is provided with a cover member 21 that covers the IC chip 13, and the oxidized portion 15 is sealed with the cover member 21.

  Therefore, according to the identification tag 1b, the IC chip 13 can be protected, and the usable time of the identification tag 1b (that is, the oxidized portion 15 is changed to the IC) by adjusting the size and number of perforations. The time until the chip 13 is stopped can be adjusted.

FIG. 4 is a top view (a) showing the identification tags 1a and 1b, an AA sectional view (b) of the identification tag 1a, and a BB sectional view (c) of the identification tag 1a. It is a side view which shows the state of the identification tag 1a before use. It is BB sectional drawing of the identification tag 1b of Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a, 1b ... Identification tag, 11 ... Coil antenna, 13 ... IC chip, 15 ... Oxidized part, 17 ... Wiring, 19a, 19b ... Terminal part, 20 ... Base material, 21 ... Cover member, 23 ... Insulating adhesive member 25 ... Base member, 27 ... Conductive adhesive member, 29 ... Release member, 31 ... Winding tag, 51 ... Corrosion promoting substance.

Claims (6)

When receiving a predetermined input signal wirelessly, a transmission means for transmitting a unique output signal wirelessly;
A time limit stop means for stopping transmission of the output signal by the transmission means when a predetermined time has elapsed;
An identification tag characterized by comprising:   The timed stop means cuts or short-circuits at least one part of the wiring constituting the transmission means, or changes the resistance value of the wiring, thereby stopping transmission of the output signal by the transmission means, The identification tag according to claim 1. 3. The identification tag according to claim 2, wherein the time-stopping means includes a cover member that is formed with a plurality of perforations and covers the transmission means.   3. The identification tag according to claim 2, wherein the time-stopping means is made of a substance having a property of corroding a metal by absorbing moisture in the air. A plurality of perforations are formed, comprising a cover member covering the transmitting means;
The identification tag according to claim 4, wherein the time stop means is sealed by the cover member. The identification tag is
It is formed in a sheet shape,
A plurality of terminal portions connected to the transmitting means and exposed on one surface of the identification tag;
Before using the identification tag, it is wound in a state of being bonded to a conductive base material,
The identification tag according to any one of claims 1 to 5, wherein when the identification tag is used, the terminal portion and the conductive base material are separated from each other.

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