JP2005352815A - Information management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent information from being acquired illicitly from a commodity tag by means of a third party's tag reader. <P>SOLUTION: When purchasing a commodity, a server that manages commodity information is accessed at a cash register terminal in accordance with a commodity ID received from the commodity tag, to obtain the corresponding commodity information. Further, the value of the commodity ID imparted to the commodity tag is changed at the cash register terminal and the ID value changed and the commodity information are stored in the tag reader owned by a consumer. The relationship between the ID and the commodity information created at the cash register terminal serves as the information that only the consumer's tag reader retains, thus restricting the tag reader that is capable of reading information from the commodity tag, and preventing information leaks from the commodity tag. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information management system, and particularly to an information management system for preventing unauthorized information collection by a third party via the wireless tag in a situation where a product with a wireless tag is sold at a store. It is.

  An RFID (radio-frequency identification, wireless tag) is an electronic device generally composed of an antenna and an integrated circuit, and is used in a system for identifying an object wirelessly without contact. The greatest feature of RFID is that it can be generated at a low cost. If it is given to a product, it is said that the efficiency of article management is drastically improved, and demonstration experiments are being carried out in various fields.

  A general information collection mechanism using RFID will be described below. Information (ID) for identifying an object is recorded in the RFID. The ID can be acquired by using an RFID reader, and the RFID user accesses a center server that holds information about the product based on the acquired ID. The center server returns the product related information corresponding to the ID to the user, so that the user can acquire information on the product to which the RFID is attached.

  The above-mentioned characteristics of RFID are not limited to use in logistics such as product inventory management, but can also be used in homes. For example, if a product tag is assigned to an article in the house, an application for managing the article in the house or for searching for the article is assumed.

  However, there is a concern that privacy will be infringed if RFID is attached to any item and people carry it around. For example, it becomes possible to collect information such as what kind of clothes are worn by a person who is not the owner of clothes holding an RFID reader over a person wearing clothes to which RFID is attached. This is because the security function is not fully considered in the low-cost priority RFID.

  As a solution to these privacy problems, a method of concealing an ID included in an RFID has been proposed (for example, see Non-Patent Document 1 below). The outline of the proposed method will be described with reference to FIG. The RFID that has received the ID request from the RFID reader returns the encrypted ID to the reader (S1001, S1002). Further, the reader transmits the received encrypted ID to a database in which product information is managed (S1003). After the ID is decrypted in the database (S1004), the product information corresponding to the ID is searched. (S1005). The database creates information necessary for encrypting the next ID (S1006), and transmits it to the reader together with the product information (S1007). The product information is displayed on the reader (S1008), and at the same time, information necessary for encryption is transmitted to the RFID (S1009). Thereafter, in the RFID, the ID is re-encrypted using the received information necessary for encryption (S1010). Thereafter, the processing of S1001 to S10010 is repeated.

  In the above method, the ID of the RFID is encrypted and recorded. Further, the RFID performs a re-encryption process every time ID information is transmitted in response to an inquiry from the RFID reader. This is to prevent ID tracking for tracking a specific ID or specifying a position even if the contents of the ID information cannot be understood.

However, when the above method is adopted in a product sales system, access to the database is required every time ID information is received, and traffic accompanying access to the database may increase depending on the spread of product tags.
Junichiro Saito, 1 other person, "ID information variable method with improved RFID tag anonymity", [online], January 27, 2004, Symposium on Cryptography and Information Security, [June 4, 2004 search ] <Internet: URL: http: // itslab. csce. kyushu-u. ac. jp / ~ saito / research / SCIS-2003-saito. pdf>

  In the first place, if the product information is collectively managed in the database even after the product is sold, the above problems occur. The product information is required by the purchaser of the product, and if the information is stored in a local area accessible only by the purchaser, the increase in traffic described above can be suppressed. Furthermore, it is possible to improve safety by adding a mechanism for locking the ID information transmission function to the product tag. Therefore, the present invention provides a product tag information management system that prevents information leakage from the product tag and can be used with confidence after the product purchase without the effort of the product purchaser when the consumer purchases the product. For the purpose.

  In order to solve the above problems, an information management system according to the present invention includes an identification information storage unit that stores identification information that uniquely identifies an article, an identification information communication unit that transmits and receives the identification information, and the identification A wireless tag including an identification information control unit that performs information change processing, a communication unit that connects to a network, sets and reads identification information for the wireless tag, and performs processing for changing the identification information and product information A cash register terminal device comprising: a product information control unit to perform; an identification information generation unit that generates the identification information; an identification information storage unit that stores the identification information; and a product information storage unit that stores the product information; A communication unit that connects to a network, a product information control unit that performs a search process of identification information and product information, a product information storage unit that stores the product information, and an identification information that stores the identification information A product information management device including a storage unit, a communication unit that connects to a network, sets and reads identification information for the wireless tag, a product information storage unit that stores product information, and an identification that stores identification information And an RFID tag information receiving terminal including an information storage unit. When purchasing the product, the information management system updates the product ID held by the product tag at the cash register terminal, and sends the updated product ID and the corresponding product information to the tag information receiving terminal held by the consumer. It is characterized by registering.

  The present invention also provides an identification information storage unit that stores identification information that uniquely identifies an article, an identification information communication unit that transmits and receives the identification information and control information, and a response to the identification information of a product tag. Control information storage unit for storing control information used for determination; identification information change processing for identification information stored in the identification information storage unit; and identification information for determining whether or not a response of the identification information to the outside of the product tag Provided is a wireless tag comprising a control unit. Such a product tag is characterized in that it has a function of determining whether an ID response is appropriate.

  In one embodiment of the present invention, the identification information control unit responds to the identification information according to a comparison result between the identification information acquired from the outside and the identification information stored in the identification information storage unit. judge. The ID response function can be controlled using a tag reader.

  In one embodiment of the present invention, an information management system includes the above-described wireless tag, the control terminal generating unit that generates the control information, and the control terminal storage unit that stores the control information. And the RFID tag information receiving terminal including a control information storage unit for storing the control information. The ID response function of the product tag can be controlled at the cash register terminal or the purchaser.

  In one embodiment of the present invention, the information management system includes a mail address input unit that inputs an email address, a mail generation unit that generates an email for transmitting the identification information and the product information, The cash register terminal device, a mail receiving unit that receives the email, a product information control unit that acquires identification information and product information from the email, an identification information storage unit that stores the identification information, and An information receiving device including a product information storage unit that stores product information. The product-related information created at the cash register terminal is transferred to the purchaser's house using e-mail.

  In one embodiment of the present invention, an information management system includes the above-described wireless tag, the control terminal generating unit that generates the control information, and the control terminal storage unit that stores the control information. And the information receiving device including a control information storage unit for storing the control information. The product related information can be transmitted to the purchaser by e-mail, and the ID response function of the product tag can be controlled.

  When purchasing a product, the information management system of the present invention changes the value of the product ID of the product tag at the cash register terminal, and changes the value of the changed ID and the product information corresponding to the ID to the product purchaser. Is stored only in the tag information receiving terminal. Therefore, the device that can convert the ID that can be received from the product tag into accurate product information is only the tag information receiving terminal of the purchaser, and invalidates illegal reading of product information by the tag information receiving terminal owned by a third party. It becomes possible to do. Furthermore, in order to perform the above setting, the purchaser only has to present the tag information receiving terminal owned by the cashier terminal, and the purchaser can be saved.

  Furthermore, by providing the product tag with a lock function of the product ID response function, it is possible to suspend the response of the product ID at the purchaser's intention, and it is possible to prevent information leakage by the product tag, making it safer Product tags can be used.

  In addition, by providing a function for transmitting product-related information generated at the cash register terminal to the purchaser using e-mail, the consumer does not have a terminal for storing the information when purchasing the product. Product information can be acquired and managed safely.

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

(Embodiment 1)
FIG. 1 is a diagram showing an overall configuration of an article information management system according to Embodiment 1 of the present invention. The system manages a product tag 101 attached to a store product, a cash register terminal 102 that pays when a customer purchases a product, a product identification number (hereinafter referred to as a product ID), and product information. The product information management server 103 and the tag information receiving terminal 104 held by the purchaser.

  When purchasing a product, the purchaser goes to the cash register terminal 102 with the product to which the product tag 101 is attached and pays at the cash register terminal 102. The cash register terminal 102 acquires the product information corresponding to the ID from the product information management server 103 using the product ID read from the product tag 101, and sends the product ID of the purchased product to the tag information receiving terminal 104 owned by the purchaser. And record product information.

  FIG. 2 shows the internal structure of the product tag 101, the cash register terminal 102, the product information management server 103, and the purchaser tag information receiving terminal 104.

  The product tag 101 includes a communication unit 211 having a communication function with the cash register terminal 102 or the personal tag information receiving terminal 104, and a control unit 212 that performs processing for recording and reading the product ID acquired through the communication unit 211. And an ID storage unit 213 for recording the product ID.

  The cash register terminal 102 communicates with the product tag 101 and the product ID, or has a communication unit 221 having a communication function with the purchaser tag information receiving terminal 104 and the product information management server 103, and a private ID and product information to be described later. A control unit 222 that manages product IDs, an ID generation unit 223 that generates product IDs called private IDs, a product information storage unit 224 that stores product information acquired from the product information management server 103, and product information management The product ID storage unit 225 stores the product ID acquired from the server 103.

  The product information management server 103 includes a communication unit 231 having a communication function with the cashier terminal 102, a control unit 232 that manages product information and product ID, a product information storage unit 233 that stores product information, and a product ID. It comprises an ID storage unit 234 for storing. The merchandise information management server holds a merchandise ID and information on the merchandise corresponding to the ID in association with each other, and has a function of searching for merchandise information based on the merchandise ID.

  The tag receiving terminal 104 for purchaser communicates the product ID with the product tag 101 or communicates with the cash register terminal 102 and the communication unit 241 having the communication function with the cash register terminal 102 and the product ID and product information via the communication unit 241. A control unit 242 that performs recording and reading processing, a product information recording unit 243 that records product information acquired through the communication unit 241, and an ID storage unit 244 that records a product ID acquired through the communication unit 241. Consists of

  The operations of the product tag 101, the cash register terminal 102, the product information management server 103, and the personal tag information receiving terminal 104 described above will be described below with reference to FIGS.

  The product purchaser performs a payment process for the product at the cash register terminal 102 when shopping at the store. At the time of payment, the purchaser presents the tag information receiving terminal owned by the purchaser and performs the following processing with the cash register terminal.

  The cash register terminal 102 has a function of reading a merchandise ID from the merchandise tag, and transmits a merchandise ID acquisition request command from the cash register terminal 102 to the merchandise tag 101 (S301).

  The product tag 101 that has received the ID acquisition request command transmits the product ID recorded in advance in the tag to the cashier terminal 102 (S302).

  A private ID is generated inside the cash register terminal 102 (S303). The private ID is identification information generated regardless of the product ID received in step S302. It is assumed that the original product ID received in S303 is held inside the cash register terminal 102.

  The private ID created in S303 is registered from the cash register terminal 102 to the product tag 101 (S304). At this time, the product ID previously stored in the product tag 101 is overwritten and updated. Therefore, after this process, the product tag 101 transmits the private ID when receiving an ID request acquisition request from the tag information receiving terminal 102. That is, the product ID to which the product tag 101 responds is changed by this process. However, the private ID generated in this step may happen to be the same value as the previously stored product ID, but by adding internal processing it should not be the same ID. Is also possible.

  The cash register terminal 102 transmits the product ID acquired in step S302 to the product information management server 103 (S305). This is because the product information corresponding to the ID is received from the product information management server 103.

  The merchandise information management server 103 searches the merchandise information storage unit 233 for merchandise information corresponding to the merchandise ID acquired in step S305 (S306).

  The merchandise information management server 103 returns the merchandise information acquired in step S307 to the cashier terminal 102 (S307).

  The cash register terminal 102 registers the merchandise information acquired in step S308 and the private ID generated in step S303 as a set in the purchaser tag information receiving terminal 104 (S308). Note that the private ID and product information temporarily held in the cash register terminal 102 are deleted at this time.

  The combination of the private ID newly generated by the above processing and the product information is the only combination that exists inside the personal tag receiving terminal 104. Therefore, even if a third party illegally receives a private ID recorded on the product tag 101, product information corresponding to the ID cannot be obtained. This is because only the purchaser tag information receiving terminal 104 holds the product information corresponding to the private ID.

  Next, the step in which the product purchaser obtains product information will be described below with reference to FIG.

  The purchaser transmits an ID request command from the tag information receiving terminal 104 to the product tag 101 (S309).

  The product tag 101 that has received the ID request command returns the private ID registered in step S304 to the tag information receiving terminal 104 (S310).

  The tag information receiving terminal 104 searches the product information storage unit 243 for product information corresponding to the private ID, and acquires information (S311).

  According to this configuration, when a consumer purchases a product, the product ID recorded in the product tag at the cash register terminal is updated to a private ID, and the private ID and product information are the tag information receiving terminal of the product purchaser. It is possible to prevent the acquisition of the product information by a third party by only being recorded in the item, and further, the consumer can safely use the product tag even after purchasing the product.

(Embodiment 2)
FIG. 4 is a diagram showing a configuration of the information management system according to Embodiment 2 of the present invention. 4, the same components as those in FIG. 2 are denoted by the same reference numerals, and the description thereof is omitted.

  The product tag in the present embodiment has a function of switching between enabling and disabling the product ID response function for the tag information receiver. That is, when a product ID request command is received from the tag information receiver, there is a mode for responding to the product ID and a mode for not responding, and a function for switching the mode according to the user's intention. The switching function is realized using control information recorded on the product tag.

  FIG. 5 describes the operation of the product tag in the present embodiment. When a product ID request command is transmitted to the product tag from a terminal having a tag information receiving function, the product tag performs processing according to the following flow.

  When trying to read the product ID of the product tag using a terminal having a tag information receiving function, an ID request command is transmitted from the tag information receiving terminal to the product tag (S501). The command includes control information to be described later, and the value may be NULL.

  The product tag control unit 411 checks whether or not the information stored in the control information storage unit 412 is NULL (S502). In addition, when goods are located in a shop front (before goods are purchased), the said information shall be set to NULL. If it is NULL, the process proceeds to S505. If it is not NULL, the process proceeds to S503.

  The control information received in step S501 is compared with the information recorded in the control information storage unit 412 (S503). If the two pieces of information match, the process proceeds to S504, and if different, the process proceeds to S506.

  The control information stored in the control information storage unit 412 is deleted (value is set to NULL) (S504).

  The ID stored in the ID storage unit 213 is returned (returned), and the process is terminated (S505). If the control information received in step S501 and the information recorded in the control information storage unit 412 do not match in S503, the process is terminated without responding (replying) anything (S506).

  The product tag in the present embodiment can lock the product ID response function by setting control information therein. In order to read the product ID information from the product tag once locked, the tag information receiving terminal needs to have control information registered at the time of locking. By configuring the product tag as described above, it is possible to limit tag information receiving terminals that can read information on a product tag. That is, only a regular product purchaser who has control information can acquire product tag information.

  In the configuration of FIG. 4, the cash register terminal 102 newly has a control information generation unit 421 and generates control information used for the product tag locking function described above. Since the control information functions as an encryption key, it is desirable to set the control information in a number that cannot be easily imagined, such as a random number sequence. When the consumer pays at the cash register terminal 102, control information is generated by the control information generation unit 421, and the information is set in a product tag.

  The personal tag information receiving terminal 104 newly has a control information storage unit 421 and has a function of storing control information received from the cash register terminal 102.

  The processing of the information management system using the product tag will be described below with reference to FIGS. 4, 6, and 7.

  FIG. 6 describes the processing performed at the cash register terminal when purchasing a product.

  The cash register terminal has a function of reading a merchandise ID from the merchandise tag, and transmits a merchandise ID acquisition request from the cash register terminal 102 to the merchandise tag 101 (S601).

  The product tag 101 that has received the ID acquisition request transmits the product ID recorded in advance in the tag to the cashier terminal 102 (S602). For the product before purchase, the control information inside the product tag is set to NULL. Therefore, in this case, the product ID is returned.

  Control information is generated in the cash register terminal 102 (S603). It is assumed that the control information and the product ID received in S303 are temporarily stored in the cash register terminal 102.

  The control information created in S303 is registered from the cash register terminal 102 to the product tag 101 (S604).

  The product tag 101 stores the control information received in S604 in the control information storage unit 421, and invalidates (locks) the product ID response function (S605).

  The cash register terminal 102 attempts to receive the product information corresponding to the ID from the product information management server 103 using the product ID acquired in step S602. Specifically, a product information request command is transmitted to the product information management server 103 (S606). At this time, the product ID is transmitted.

  The merchandise information management server 103 searches the merchandise information storage unit 234 for merchandise information corresponding to the merchandise ID acquired in step S606 (S607).

  The merchandise information management server 103 returns the merchandise information searched in step S607 to the cashier terminal 102 (S608).

  The cash register terminal 102 sets the merchandise ID acquired in step S602, the control information generated in step S603, and the merchandise information acquired in step S608, and sets the purchaser tag information receiving terminal 104. (S609). It is assumed that the product ID, control information, and product information temporarily stored in the cash register terminal 102 are deleted at this timing.

  Through the above processing, the product tag 101 has the ID response function disabled, and the tag information receiving terminal that can read the product ID stored in the product tag 101 is the tag information receiving terminal of the product purchaser having the control information. Will be limited.

  Next, a process in which a product purchaser acquires product information will be described below with reference to FIG.

  The consumer transmits a product ID request command from the personal tag information receiving terminal 104 to the product tag 101 (S701). At that time, the control information registered in step S609 is transmitted.

  The product tag 101 that has received the ID request command performs the processing shown in FIG. If regular control information is received, the ID response function is validated (S702). If the received control information and the control information held inside do not match, the product ID is not returned.

  If it is determined in step S702 that the control information is valid, the product tag returns a product ID to the purchaser tag information receiving terminal 104 (S703). Otherwise, do not respond.

  The personal tag information receiving terminal 104 searches the merchandise information corresponding to the merchandise ID from the merchandise information storage unit 243 and the ID storage unit 244 and displays them (S704).

  According to such a configuration, when a consumer purchases a product, the ID response function of the product tag is locked at the cash register terminal, and the control information that can be unlocked is limited to the purchaser's tag information receiving terminal. Thus, it is possible to prevent the acquisition of product information by a third party, and the consumer can safely use the product tag even after purchasing the product. Further, the present embodiment invalidates the response of the product ID itself, and can sufficiently cope with prevention of ID tracking.

  In the present embodiment, it is also possible to create a private ID and change the identification information of the product tag as in the first embodiment. By changing the value of the product ID recorded in the product tag, it is possible to further increase the safety against information leakage. At that time, the combination of the changed private ID and product information may be recorded in the purchaser tag information receiving terminal.

(Embodiment 3)
FIG. 8 is a diagram showing an overall configuration of an information management system according to Embodiment 3 of the present invention. This system includes a product tag 101 assigned to a storefront product, a cash register terminal 802 where a product purchaser performs payment processing in the store, and a product ID and product information recorded in the product tag. It comprises an information management server 103 and a home server 804 (or a terminal having an e-mail receiving function) owned by the product purchaser at home or the like.

  In Embodiments 1 and 2, when a product purchaser purchases a product, it is necessary to acquire various information (ID, product information, etc.) from the purchaser-owned tag information receiving terminal at the cash register terminal. In the present embodiment, a system for transferring the information by e-mail to the e-mail address of the purchaser will be described. By constructing such a system, the purchaser can use the functions described in the first and second embodiments even when the purchaser does not have a tag information receiving terminal at the cash register terminal. It becomes.

  FIG. 9 is a diagram showing a configuration of an article information management system according to Embodiment 3 of the present invention. 9, the same components as those in FIG. 2 are denoted by the same reference numerals, and description thereof is omitted.

  In FIG. 9, the cash register terminal 802 sends a mail address input unit 921 for inputting the e-mail address of the merchandise purchaser, and mail transmission for sending the merchandise ID, merchandise information, the private ID generated by the cash register terminal 802, and the like A mail generation unit 922 that generates data is newly provided.

  The home server 804 is a device having a mail receiving function, and includes a mail receiving unit 941 that receives an email transmitted from the cashier terminal 802, a control unit 942 that extracts product information and a product ID from the received mail, It has a product information storage unit 943 that stores the product information, and an ID storage unit 944 that stores the product ID.

  When purchasing a product, the product purchaser inputs an e-mail address at the cash register terminal 802. In the cash register terminal 802, as in the first embodiment, the product ID is acquired from the product tag 101, the product information is acquired from the product information management server 103 using the acquired product ID, and the private ID is generated. The product tag 101 is set. Thereafter, the cash register terminal 802 transmits the information (private ID, product information) to the product purchaser using an electronic mail.

  After returning to home (after moving to an environment where mail can be received), the purchaser can receive the mail and obtain a private ID and product information therefrom. If the home server and the tag receiving terminal can be connected via a communication path, the product tag can be reused using the information.

  According to such a configuration, even when the product purchaser does not have a terminal having a tag information reception function, the product tag information is not leaked to a third party, and the product tag can be safely It can be reused.

  Note that the second embodiment can be applied to this embodiment. If it does so, it will become possible to lock the ID response function of a goods tag, and it will become possible to use a goods tag more safely. At that time, control information is generated at the cashier terminal 802, and the control information is transmitted to the purchaser by e-mail.

  The information management system of the present invention has an effect of preventing information leakage of the wireless tag without taking the trouble of the consumer. It is an indispensable information protection system for the spread of product tags and the spread of applications that use product tags at home.

Schematic which shows the whole structure of the information management system in Embodiment 1 of this invention 1 is an overall configuration diagram of an information management system according to Embodiment 1 of the present invention. The figure which shows the example of the communication procedure in Embodiment 1 of this invention Overall configuration diagram of information management system according to Embodiment 2 of the present invention Processing flowchart when receiving an ID request command of the product tag-control unit in Embodiment 2 of the present invention The figure which shows the example (at the time of goods purchase) of the communication procedure in Embodiment 2 of this invention The figure which shows the example of the communication procedure in Embodiment 2 of this invention (at the time of the merchandise information acquisition in a personal receiving terminal) Schematic which shows the whole structure of the information management system in Embodiment 3 of this invention. Overall configuration diagram of an information management system in Embodiment 3 of the present invention The figure which shows the outline | summary of the ID information variable system which is the prior art of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Product tag 102 Cash register terminal 103 Product information management server 104 Personal tag information receiving terminal 211 Product tag-communication unit 212 Product tag-control unit 213 Product tag-ID storage unit 221 Cash register terminal-communication unit 222 Cash register terminal-control unit 223 Cash register terminal-ID generation unit 224 Cash register terminal-product information storage unit 225 Cash register terminal-ID storage unit 231 Product information management server-communication unit 232 Product information management server-control unit 233 Product information management server-product information storage unit 234 Product information Management server-ID storage unit 241 Personal tag information receiving terminal-Communication unit 242 Personal tag information receiving terminal-Control unit 243 Personal tag information receiving terminal-Product information storage unit 244 Personal tag information receiving terminal-ID storage unit 411 Product tag-control unit 412 Product tag-control information storage unit 421 Cash register end -Control information generating unit 441 Personal tag information receiving terminal-Control information storage unit 442 Personal tag information receiving terminal-Control unit 802 Cash register terminal 804 Home server 921 Cash register terminal-Mail address input unit 922 Cash register terminal-Mail generating unit 941 Home Server-communication unit 942 Home server-control unit 943 Home server-product information storage unit 944 Home server-ID storage unit

Claims (6)

A radio comprising: an identification information storage unit that stores identification information that allows an article to be uniquely identified; an identification information communication unit that transmits and receives the identification information; and an identification information control unit that performs a process for changing the identification information Tag,
A communication unit for connecting to a network, setting and reading identification information for the wireless tag, a product information control unit for changing the identification information and product information, an identification information generating unit for generating the identification information, A cash register terminal device comprising: an identification information storage unit that stores the identification information; and a product information storage unit that stores the product information;
A communication unit that connects to a network, a product information control unit that performs a search process of identification information and product information, a product information storage unit that stores the product information, and an identification information storage unit that stores the identification information; A product information management device comprising:
A wireless tag information receiving terminal comprising: a communication unit for connecting to a network, setting and reading identification information for the wireless tag; a product information storage unit for storing product information; and an identification information storage unit for storing identification information An information management system comprising: An identification information storage unit for storing identification information for uniquely identifying the article;
An identification information communication unit for transmitting and receiving the identification information and control information;
A control information storage unit that stores control information used to determine whether or not the response of the identification information of the product tag is correct;
A wireless tag comprising: a process for changing identification information stored in the identification information storage unit; and an identification information control unit for determining whether or not the identification information is responding to the outside of a product tag. The identification information control unit determines whether or not a response of the identification information is appropriate according to a comparison result between the identification information acquired from the outside and the identification information stored in the identification information storage unit. 2. The wireless tag according to 2. The information management system according to claim 1,
The wireless tag according to claim 2 or 3,
The cash register terminal device comprising: a control information generating unit that generates the control information; and a control information storage unit that stores the control information;
An information management system comprising: the RFID tag information receiving terminal including a control information storage unit that stores the control information. The information management system according to claim 1,
An email address input section for entering an email address;
The cash register terminal device comprising: a mail generation unit that generates an email for transmitting the identification information and the product information;
A mail receiver for receiving the e-mail;
A product information control unit for acquiring identification information and product information from the e-mail;
An identification information storage unit for storing the identification information;
An information management system comprising: an information receiving device including a product information storage unit that stores the product information. An information management system according to claim 5, wherein
The wireless tag according to claim 2 or 3,
The cashier terminal device comprising: a control information generating unit that generates the control information; and a control information storage unit that stores the control information;
An information management system comprising: the information receiving device including a control information storage unit that stores the control information.

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