JP2019128807A - Article with ic tag, attachment and detachment monitoring apparatus, attachment and detachment monitoring method, and ic tag - Google Patents

Abstract

To stably, with a simple arrangement, monitor attachment and detachment of one part of an article to and from the other part of the article by using IC tags attached to the article.SOLUTION: A first part has a contact member which is brought into contact with a second part when the second part is attached. An IC tag has an article side storage unit for storing identification information for use in identification of the article, a detecting unit for detecting a physical property value indicative of electromagnetic property of the contact member obtained when the second part is attached to the first part, as attachment and detachment information relating to attachment and detachment of the first part to and from the second part, and a transmitting unit for transmitting the identification information and the attachment and detachment information detected by the detecting unit.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an IC-tagged article in which the first part and the second part to which the IC tag is attached are mutually removable, a desorption monitoring technique for monitoring desorption of parts in the IC-tagged article, and an IC suitable therefor It relates to tags.

  In an article in which two parts are detachably provided to each other, for example, a bottle, a cap is attached to a bottle body to manage contents stored in the bottle body. Thus, the bottle is distributed as a product in a state where the contents are protected by the cap attachment, and is delivered to the consumer. In recent years, in order to efficiently carry in / out of goods, inventory, sales management, etc., there are increasing cases of attaching IC tags to goods.

  Here, the commercial value is not in the bottle but in the contents (for example, high-quality liquor and medicine, etc.). For this reason, after the cap was opened in the distribution process of the bottle and the contents were refilled into a forged product, the cap was sometimes re-mounted and sold. As such a counterfeit measure, it has been proposed to cut off an electrical connection of an IC chip constituting an IC tag by an opening operation of a cap (see, for example, Patent Document 1).

JP, 2011-227752, A

  In the above prior art, it is necessary to provide the cap with a configuration for destroying the communication function of the IC tag itself by the opening operation, and there is a problem that the cap structure becomes complicated. Further, if the communication function is not completely destroyed along with the opening operation, the opening cannot be detected, and there is a problem in the stability of the operation. Such a problem is not limited to the bottle, and the IC tag monitors the removal of one of the two parts constituting the article from the other and the article management is performed. It is occurring in the whole technology.

  The present invention has been made in view of the above problems, and a technology capable of stably monitoring the detachment of the other component with respect to one component of the article by using an IC tag attached to the article with a simple configuration. Intended to be provided.

  A first aspect of the present invention is an article with an IC tag in which a first part and a second part to which an IC tag is attached are detachable from each other, and the first part is mounted when the second part is attached. An article-side storage unit having a contact member in contact with the second part, the IC tag storing identification information for identifying an article, and electromagnetism of the contact member when the second part is attached to the first part A detection unit that detects physical property values indicating specific properties as desorption information on desorption between the first part and the second part, and a transmission unit that transmits identification information and desorption information detected by the detection unit. And

  A second aspect of the present invention is a desorption monitoring device that monitors the desorption of the first part and the second part in the article with an IC tag, and includes identification information and desorption information transmitted from a transmission unit of the IC tag. , A monitoring-side storage unit that stores the received identification information and desorption information in association with each other, and a reception unit that receives the identification information and desorption information. Every time it receives the identification information identical to the received identification information, the identity of the latest detachment information among the detachment information stored in association with the monitoring storage unit with the detachment information received by the reception unit When the identity of the desorption information is confirmed by the identity judging unit and the identity judging unit, the first part and the second part are not detached, and when not confirmed, the first part and the second part Desorption takes place It is characterized in that it comprises a determining desorption determination unit that.

  According to a third aspect of the present invention, there is provided a desorption monitoring method for monitoring the desorption of the second part with respect to the first part in the article with the IC tag, wherein the identification information and the desorption information are transmitted from the transmission unit of the IC tag. The following steps (a) to (d), (a) correlating the identification information and the detachment information transmitted and storing them in the monitoring storage unit; (b) the received identification information; The process of extracting the latest desorption information from the desorption information stored in association with the monitoring storage unit for the same identification information, (c) determining the identity of the extracted desorption information and the received desorption information (D) desorption of the first part and the second part is not performed when the identity of the desorption information is confirmed, and detachment of the first part and the second part is performed when the identity is not confirmed. And the step of determining It is a symptom.

  Furthermore, a fourth aspect of the present invention is an IC tag attached to a second part of a first part and a second part that are detachable from each other, and that stores identification information for identifying the article. A side storage unit, a detection unit that detects desorption information related to the desorption of the first component and the second component, and a transmission unit that transmits the identification information and the desorption information detected by the detection unit. The physical property value indicating the electromagnetic property of the contact member that comes into contact with the second component when the second component is mounted on the first component among the one component is measured, and the desorption information is detected based on the physical property value. It is characterized by

  In the invention configured as described above, the IC tag detects the detachment information on the detachment of the first part and the second part, and transmits the detachment information together with the identification information for identifying the article. Therefore, by referring to the identification information and the attachment / detachment information, the attachment / detachment determination of the other part (the second part (or the first part)) with respect to the one part (the first part (or the second part)) in the article is ensured. It can be carried out.

  As described above, by using the IC tag having a function of obtaining desorption information in association with identification information, desorption of the other component with respect to one component of the article can be stably monitored with a simple configuration.

It is a perspective view showing the appearance of the bottle which is one embodiment of the article with an IC tag concerning the present invention. It is a figure which shows typically detachment | desorption of the cap in the bottle shown in FIG. It is a figure which shows typically the attachment state of the IC tag to a cap. It is a figure showing the opening monitoring device of the cap which is one embodiment of the desorption monitoring device concerning the present invention. It is a figure which shows typically the opening monitoring operation | movement by the opening monitoring apparatus shown in FIG.

  FIG. 1 is a perspective view showing the appearance of a bottle which is an embodiment of an IC tag-attached article according to the present invention. Moreover, FIG. 2 is a figure which shows typically detachment | desorption of the cap in the bottle shown in FIG. FIG. 3 is a diagram schematically showing an attachment state of the IC tag to the cap. Furthermore, FIG. 4 is a figure which shows the opening monitoring apparatus of the cap which is one Embodiment of the detachment | desorption monitoring apparatus based on this invention. The bottle 1 includes a bottle body 2 and a bottle cap 3.

  The bottle body 2 is, for example, a resin container called a plastic bottle mainly made of polyethylene terephthalate (PET). The body portion 21 of the bottle main body 2 is finished into a rectangular cylindrical, cylindrical or hexagonal cylindrical shape, and can store a beverage such as water, tea, juice or the like in its inside. A lid closing portion 22 is formed at the top of the body portion 21. Here, the range in which the bottle cap 3 is generally mounted on the upper side from the shoulder portion of the trunk portion 21 is generally referred to as the lid closing portion 22. At the upper end of the lid closing part 22, the spout 23 is opened, and a male screw 24 is appropriately formed from the vicinity of the spout 23 downward. The male screw 24 has a shape such as being divided as appropriate in addition to a continuous spiral male screw.

  In the male screw 24, the conductive contact member 25 is male by a predetermined length along the spiral direction of the male screw 24 so as to be in electrical contact with the contact 33 provided on the bottle cap 3 when the bottle cap 3 is attached. It is attached to the screw thread of screw 24. Here, as shown in FIG. 2, the attachment range of the contact member 25 is a part of the thread of the male screw 24, but it goes without saying that the contact member 25 may be provided on the entire thread. As a method for making the contact member 25, for example, a vapor deposition method, a plating method, a printing method, or the like can be used, but it is particularly preferable to use a printing method. The reason will be described in detail later. Furthermore, part or all of the screw thread may be made of a conductive material and function as the contact member 25.

  The bottle cap 3 is usually made of a resin material different from the resin material constituting the bottle body 2 in many cases, but is not limited to this and may be formed of the same resin material. In this bottle cap 3, as shown in FIG. 2, a female screw 32 is formed inside the cap body 31, and the male screw 24 provided on the bottle body 2 by rotating the bottle cap 3 in a predetermined direction. The bottle cap 3 can be attached by screwing together. On the contrary, it is possible to remove from the bottle main body 2 by rotating the bottle cap 3 to the opposite side.

  Here, as shown in FIG. 1 to FIG. 3, the characteristic point in the present embodiment is that when the IC tag 4 is attached to the bottle cap 3 and the bottle cap 3 is attached to the bottle main body 2 Contact points 33 and 34 and wirings 35 and 36 are provided on the bottle cap 3 in order to electrically connect the tag 4 and the contact member 25. The attachment mode of the IC tag 4 is optional, and in-mold or adhesive may be used. The contact points 33 and 34 may be provided anywhere as long as they can be in electrical contact with the contact member 25. However, it is preferable that the contact points 33, 34 be arranged to be hidden by the bottle cap 3 attached to the bottle body 2. In the present embodiment, for example, as shown in FIGS. 2 and 3, the male screw 24 is provided at a thread cutting position of the female screw 32 so as to be spaced apart from each other in the spiral direction. It is provided to face the thread of. In this respect, the wires 35, 36 are also similar to the contacts 33, 34.

  Further, the separation distance between the contacts 33 and 34 in the spiral direction is shorter than the length of the contact member 25, and the contacts 33 and 34 contact the contact member 25 at the time of mounting and removal of the bottle cap 3 from the bottle main body 2. Slide on the surface of For this reason, wear occurs between the contacts 33 and 34 and the contact member 25 every time the bottle cap 3 is removed, and the electrical resistance changes. In particular, in the present embodiment, since the hardness of the contacts 33 and 34 is set to be higher than the hardness of the contact member 25, the contacts 33 and 34 scrape the surface of the contact member 25 when removing the bottle cap 3. It moves and electrical resistance fluctuates greatly. Therefore, when the bottle cap 3 is desorbed, the electric resistance becomes a unique value every desorbing. That is, when the bottle cap 3 is removed and then re-mounted, the electric resistance before and after that becomes a different value by all means, and the electric resistance value of the contact member 25 can function as desorption information regarding desorption between the bottle body 2 and the bottle cap 3 . Therefore, in the present embodiment, as shown in FIG. 3, the contacts 33 and 34 are electrically connected to the IC chip 41 of the IC tag 4 via the wirings 35 and 36, respectively. The resistance value can be appropriately detected as the desorption information.

  The IC tag 4 has an IC chip 41 and an antenna 42, as shown in FIG. Among them, the IC chip 41 includes a communication power supply unit 411, a control unit 412, and a storage unit 413. The communication power supply unit 411 receives a radio wave transmitted from the desorption monitoring device 5 via the antenna 42 and converts the command transmitted by the radio wave into digital data by supplying power to each part of the IC chip 41 by electromagnetic induction. , And also has a communication function of transmitting radio waves including identification information and desorption information via the antenna 42 as will be described in detail later. Note that part of the current supplied from the communication power supply unit 411 is supplied to the contact 33 through the wiring 35.

  The control unit 412 includes a detection unit 412a and an information update unit 412b. The detection unit 412a is electrically connected to the contact 34 via the wiring 36, and can detect the electric resistance value of the contact member 25. Then, the electrical resistance value detected by the detection unit 412a is appropriately registered in the storage unit 413, and rewriting of the electrical resistance value is executed. This rewriting update is performed by the information updating unit 412 b, and the latest electric resistance value is always stored in the IC tag 4.

  In the storage unit 413, identification information for identifying the bottle 1 is stored in addition to the above-described electric resistance value (desorption information). Thus, the latest electrical resistance value is stored in the storage unit 413 corresponding to the identification information. These are given from the control unit 412 to the communication power supply unit 411 as data relating to the detachment of the bottle cap 3 in the bottle 1. Then, the communication power supply unit 411 transmits a radio wave including these data to the desorption monitoring device 5 via the antenna 42.

  As shown in FIG. 4, the detachment monitoring device 5 includes a reader / writer 51, a controller 52, and a display / operation unit 53. The reader / writer 51 performs wireless communication with the IC tag 4, receives radio waves including check command data from the controller 52, converts it into digital data and transmits it to the IC tag 4, and also detects the electric resistance value and identification from the IC tag 4. A radio wave including information is received, converted into digital data, and provided to the controller 52.

The controller 52 is a CPU (= Central Processing Unit) or a RAM (= Random
The control unit 521 includes a computer having an access memory or the like, and a storage unit 522 that stores programs and various data. The control unit 521 executes an unplugging monitoring operation based on a program stored in the storage unit 522. That is, the control unit 521 relates the electrical resistance value and the identification information received via the reader / writer 51 to each other, and stores the same in the storage unit 522 as container information. As a result, the latest container information on the bottle 1 is stored in the storage unit 522. Further, the control unit 521 determines the identity of the bottle 1 based on the container information. That is, every time the container information is received, the control unit 521 reads the latest value among the electrical resistance values stored in association with the storage unit 522 for the same identification information as the received identification information. Then, if this is the same as the newly received electrical resistance value, or if the fluctuation amount is within the allowable range, the sameness of the electrical resistance value is ensured and the bottle cap 3 is not opened. The control unit 521 determines. Conversely, when the variation amount exceeds the allowable range and the identity is not secured, the control unit 521 determines that the bottle cap 3 has been removed once. Thus, the control unit 521 functions as the “identity determination unit” and the “desorption determination unit” of the present invention. The determination result and various data are displayed on the display / operation unit 53 to facilitate user confirmation, and the user can give a check instruction via the display / operation unit 53.

  For example, a device in which a reader / writer 51 is connected to a personal computer, or a device in which a reader / writer 51 is connected to a server via a network can be used as the desorption monitoring device 5. Moreover, what installed the exclusive application in the portable terminal which has communication functions, such as a smart phone, may be used as the detachment | desorption monitoring apparatus 5. FIG. In either case, desorption monitoring can be performed as follows.

  FIG. 5 is a diagram schematically showing the attachment / detachment monitoring operation in the bottle with the IC tag. Here, the filling of the contents into the bottle 1, that is, in the case of a so-called unopened state in which the bottle cap 3 has never been removed from the bottle body 2 after bottling (column (a) in the same figure); Will be described separately in the case of an unsealed state after being removed from the bottle body 2 (column (b) in the figure).

  In this embodiment, immediately after the first bottling, the user operates the desorption monitoring device 5 to measure the electrical resistance value in the unopened state. More specifically, the user brings the reader / writer 51 close to the bottle cap 3 and the first check command via the display / operation unit 53 (hereinafter referred to as "initial setting command", and the check command executed thereafter And distinguish). Then, a radio wave including initial setting command data is transmitted from the desorption monitoring device 5 to the IC tag 4, and the electric resistance value immediately after bottling is received and measured, and stored in the IC tag 4 in association with the identification information of the bottle 1. Is stored in the section 41 (see the top of the column (a) in the figure). A radio wave including the identification information and the measured electrical resistance value is transmitted from the IC tag 4 to the desorption monitoring device 5 and registered as container information in the storage unit 522 of the desorption monitoring device 5 (step (a) of the present invention). Equivalent to an example)). In FIG. 5, “ID01” and “XXΩ” are registered as the identification information of the bottle 1 and the electric resistance value immediately after bottling.

  Then, when checking the opening condition of the bottle 1 after the first bottling, the user brings the reader / writer 51 close to the bottle cap 3 and gives a check instruction via the display / operation unit 53. As a result, the current electrical resistance value is measured by the IC tag 4 and stored in the IC tag 4 as shown at the bottom of the column (a) of FIG. It is registered in the part 41 and updated. Further, a radio wave including the identification information and the measured electric resistance value is transmitted from the IC tag 4 to the desorption monitoring device 5. The desorption monitoring device 5 having received this reads out the latest value among the electrical resistance values stored in association with the storage unit 522 for the same identification information as the identification information received by the control unit 521 (step of the present invention b) equivalent to an example).

  When the bottle 1 is unopened ((a) column in the figure), it is determined that the latest read value and the received electric resistance value are the same or the fluctuation amount is within an allowable range (this The control unit 521 determines that the bottle cap 3 is not opened (corresponding to an example of the step (c) of the present invention). Then, the display / operation unit 53 displays that to notify the user.

  On the other hand, as shown in the middle part of column (b) of the same figure, after the bottle 1 is opened after the first bottling, the bottle cap 3 may be reinstalled, but in this case, when removing the bottle cap 3 The contacts 33 and 34 slide on the surface of the contact member 25, and the electrical resistance value changes. Therefore, even if the user measures the electrical resistance in the same manner as at the first bottling, the electrical resistance value measured by the IC tag 4 is different from the value immediately after the first bottling (in FIG. "). Then, the electrical resistance value is transmitted from the IC tag 4 to the attachment / detachment monitoring device 5 together with the identification information. The desorption monitoring device 5 having received this reads out the latest value among the electrical resistance values stored in association with the storage unit 522 for the same identification information as the identification information received by the control unit 521 (step of the present invention b) equivalent to an example). Then, since the received electrical resistance value fluctuates beyond the allowable range, the control unit 521 determines that the bottle cap 3 has been opened (corresponding to an example of steps (b) and (c) of the present invention). )), The display / operation unit 53 displays this fact to inform the user.

  As described above, according to the present embodiment, the IC tag 4 measures the electric resistance value as the detachment information on the detachment of the bottle cap 3 with respect to the bottle body 2 and transmits it to the detachment monitoring device 5 together with the identification information for identifying the bottle 1 Do. Therefore, by referring to the identification information and the electrical resistance value, it is possible to reliably determine whether the bottle cap 3 is attached to or detached from the bottle body 2 in the bottle 1. By additionally equipping the IC tag 4 with the function of measuring the electric resistance value in this manner, the detachment of the bottle cap 3 from the bottle body 2 can be stably monitored with a simple configuration.

  Further, in the above embodiment, since the contact member 25 is added to the bottle 1 to measure the electric resistance value, it is practically impossible to manufacture a forged bottle. For example, even if the contact member 25 is formed in a forged bottle, it is very difficult and virtually impossible to match the electric resistance value to the electric resistance value immediately after bottling. In particular, when the contact member 25, the contacts 33, 34, the wires 35, 36, etc. are manufactured by the printing method, the print width and thickness are likely to be varied, which advantageously acts on individual identification and makes forgery more difficult It is assumed.

  In addition, the contacts 33 and 34 and the contact member 25 are both required to be formed of a conductive material, but the rest are optional. However, in the above embodiment, the hardness of the contacts 33 and 34 is different from the hardness of the contact member 25. For this reason, the electric resistance value can be largely changed by the sliding at the time of detachment of the bottle cap 3. Such hardness adjustment makes it possible to monitor desorption more accurately. For example, in a printing method using a conductive ink, the hardness can be adjusted with a high degree of freedom by adjusting a binder component contained in the conductive ink. Therefore, it can be said that the printing method is one of the most preferable manufacturing techniques. In the above embodiment, the hardness of the contacts 33 and 34 is set to be higher than the hardness of the contact member 25. However, the hardness relationship may be reversed, and the same function and effect as described above can be obtained.

  Thus, in this embodiment, the bottle 1, the bottle main body 2, and the bottle cap 3 correspond to examples of the “article with IC tag”, the “first part”, and the “second part” of the present invention, respectively. The storage units 41 and 522 respectively correspond to an example of the “article-side storage unit” and the “monitoring-side storage unit” in the present invention. The electric resistance of the contact member 25 corresponds to an example of “physical property value indicating the electromagnetic property of the contact member” in the present invention. The communication power supply unit 411 and the reader / writer 51 respectively function as the “transmission unit” and the “reception unit” in the present invention.

  The present invention is not limited to the above-described embodiment, and various modifications can be made to the above-described one without departing from the spirit of the present invention. For example, although the IC tag 4 is attached to the bottle cap 3 in the above embodiment, the IC tag 4 may be attached to the bottle body 2. In this case, the bottle body 2 and the bottle cap 3 correspond to an example of the “second component” and the “first component” in the present invention respectively.

  In the above embodiment, the electric resistance value (desorption information) stored in the storage unit 413 is updated each time the electric resistance is detected by the detection unit 412a. The storage of the electrical resistance value on the IC tag 4 side is not always essential. Alternatively, the electric resistance value may be registered in the storage unit 413 of the IC tag 4 every time the electric resistance detection is performed, and the electric resistance value may be stored. In this case, the electric resistance value is read from the IC tag 4 and referred to Thus, the detachment history of the bottle cap 3 can be verified.

  Moreover, in the said embodiment, although only the presence or absence of opening is monitored, the application object of this invention is not limited to this. For example, after being opened, each time an electrical resistance is detected based on a check command, the latest electrical resistance value is updated and stored in association with the identification information, and the electrical resistance is detected by the detection unit 412a. The detachment of the bottle cap 3 may be monitored by determining the identity between the electrical resistance value and the latest electrical resistance value each time.

  Moreover, in the said embodiment, although this invention is applied with respect to the bottle 1 shape | molded by the resin material, the application object of this invention is not limited to this, It comprises with glass material, a ceramic material, etc. The present invention is also applicable to the used bottles. In addition, the present invention is not limited to the bottle, and the present invention can be applied to an article in which the first component and the second component are detachable from each other.

  The present invention is generally suitable for an IC-tagged article in which the first part and the second part on which the IC tag is attached mutually detachable, a desorption monitoring technology for monitoring the desorption of the part in the IC-tagged article, and Can be applied to all kinds of IC tags.

1 ... Bottle (article with IC tag)
2 ... Bottle body (first part)
3 ... Bottle cap (second part)
DESCRIPTION OF SYMBOLS 4 ... IC tag 5 ... Desorption | monitoring monitoring apparatus 25 ... Contact member 33, 34 ... Contact 35, 36 ... Wiring 41 ... IC chip 51 ... Reader writer (receiving part)
52 ... controller 53 ... display / operation unit 411 ... communication power supply unit (transmission unit)
412a ... detection unit 412b ... information updating unit 413 ... (article side) storage unit 521a ... identity determination unit 521b ... desorption determination unit 522 ... (monitoring side) storage unit

Claims (9)

The first component and the second component to which the IC tag is attached can be attached to and detached from each other.
The first component has a contact member that comes into contact with the second component when the second component is mounted;
The IC tag is
An article-side storage unit that stores identification information that identifies the article;
A detection unit that detects a physical property value indicating an electromagnetic property of the contact member when the second component is attached to the first component as desorption information on desorption between the first component and the second component. When,
An article with an IC tag, comprising: a transmitter configured to transmit the identification information and the detachment information detected by the detector. An article with an IC tag according to claim 1, wherein
The article-side storage unit is an article with an IC tag that stores desorption information detected by the detection unit. An article with an IC tag according to claim 2, wherein
An article with an IC tag, comprising: an information updating unit that updates the desorption information stored in the article-side storage unit each time desorption information is detected by the detection unit. An IC-tagged article according to any one of claims 1 to 3,
The second component has a contact point that comes into sliding contact with the contact member when the second component is mounted on the first component;
The article with an IC tag, wherein the detection unit supplies an electric current to the contact member via the contact point to measure the electric resistance of the contact member as the physical property value. An article with an IC tag according to claim 4, wherein
An article with an IC tag in which the hardness of the contact and the hardness of the contact member are different from each other. An article with an IC tag according to claim 5, wherein
An article with an IC tag, wherein the hardness of the contact is higher than the hardness of the contact member. A desorption monitoring device for monitoring desorption of the first part and the second part in the IC-tagged article according to any one of claims 1 to 6,
A receiving unit for receiving identification information and desorption information transmitted from the transmitting unit of the IC tag;
A monitoring side storage unit that stores the received identification information and the detachment information in association with each other every time the reception unit receives the identification information and the detachment information;
Each time the receiving unit receives the identification information and the detachment information, the latest detachment information among the detachment information stored in association with the monitoring storage unit for the same identification information as the received identification information An identity determining unit for determining the identity with the desorption information received by the receiving unit;
When the identity of the detachment information is confirmed by the identity determination unit, the detachment between the first part and the second part is not performed, and when the identity is not confirmed, the detachment between the first part and the second part is A desorption monitoring device characterized by comprising: a desorption determination unit that determines that it has been performed. A desorption monitoring method for monitoring desorption of the second part with respect to the first part in the IC-tagged article according to any one of claims 1 to 6,
Each time identification information and desorption information are transmitted from the transmitter of the IC tag, the following steps (a) to (d)
(A) storing the transmitted identification information and desorption information in association with each other in the monitoring storage unit;
(B) extracting the latest desorption information from the desorption information stored in association with the monitoring storage unit for the same identification information as the received identification information;
(C) determining the identity between the extracted desorption information and the received desorption information;
(D) When the identity of the desorption information is confirmed, desorption of the first part and the second part is not performed, and when identity is not confirmed, the first part and the second part are detached. And a step of determining that it is determined. An IC tag attached to the second part of the first part and the second part which are detachable from each other, which constitute an article,
An article-side storage unit that stores identification information that identifies the article;
A detector for detecting desorption information related to desorption between the first component and the second component;
A transmission unit that transmits the identification information and the desorption information detected by the detection unit;
The detection unit measures a physical property value indicating an electromagnetic property of a contact member that contacts the second part when the second part is attached to the first part of the first part, An IC tag which detects the desorption information based on the physical property value.

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