JP2009102135A - Article management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To construct an article management system at a low cost which is capable of managing an article arranged at an article arranging part by using an electronic tag. <P>SOLUTION: The electronic tag 6 for the arranging part is attached in accordance with a position where the article 3 is arranged in the article arranging part 4. When the article 3 is arranged in the article arranging part 4, information of the electronic tag 6 for the arranging part and an electronic tag 6a for the article becomes unreadable by using a tag reader 8 as the electronic tag 6 for the arranging part and the electronic tag 6a for the article approaches close to each other. A management computer 2 has a memory part 25 for associating and storing the information of the electronic tag 6 for the arranging part and the electronic tag 6a for the article which has become unreadable by using the tag reader 8. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an article management system including a tag reader that reads information stored in an electronic tag using electromagnetic waves, and a management computer that receives information from the tag reader.

  2. Description of the Related Art Conventionally, there is an article search system (article management system) that can output an article storage area in an easy-to-understand manner when searching for articles stored in a storage area. ), A storage area management board for reading information from the RFID medium (electronic tag) is provided, and a plurality of antenna substrates (tag readers) are provided on the storage area management board, and articles placed on each antenna substrate in the storage area management board By reading out the RFID medium attached to the rack, it is possible to grasp which article is located at which position in the shelf (see, for example, Patent Document 1).

JP 2006-273554 A (5th page, FIG. 2)

  However, in the article search system (article management system) described in Patent Document 1, a plurality of antenna substrates (tag readers) are provided on a storage area management board arranged on one shelf (article arrangement section). Not only will the number of antenna boards increase, but it will also be necessary to connect each antenna board to a management PC (management computer) and connect a power cable, etc. There is a problem that the construction cost increases.

  The present invention has been made paying attention to such problems, and an object of the present invention is to be able to construct an article management system capable of managing articles placed in an article placement section using an electronic tag at a low cost. And

In order to solve the above problem, an article management system according to claim 1 of the present invention provides:
A plurality of articles, an article placement section for placing the article, a plurality of placement section electronic tags attached to the article placement section, an article electronic tag attached to the article, the placement section electronic tag, and An article management system comprising: a tag reader that reads information stored in each of the article electronic tags using electromagnetic waves; and a management computer that receives the information from the tag reader;
The placement part electronic tag is attached to correspond to a position where the article is placed in the article placement part, and when the article is placed in the article placement part, the placement part electronic tag and When the electronic tag for goods is close to each other, the information on the electronic tag for placement part and the electronic tag for goods is not readable using the tag reader, and the management computer is unable to read the information using the tag reader. It has the memory | storage part which matches and memorize | stores the information of the electronic tag for parts, and the information of the said electronic tag for goods.
According to this feature, when the electronic tags are brought close to each other, communication between the electronic tags and the tag reader cannot be performed, so that when the article is placed in the article placement unit, it cannot be read using the tag reader. If the information of the electronic tag for the placement unit and the electronic tag for the product is stored in the storage unit in correspondence with each other, it is determined by referring to the storage unit where the article has been placed. It becomes possible to manage articles using electronic tags, and it is necessary to connect to the management computer by wiring etc. for each placement unit electronic tag, or to connect a power cable The article management system can be constructed at a low cost.

The article management system according to claim 2 of the present invention is
A plurality of articles, an article placement section for placing the article, a plurality of placement section electronic tags attached to the article placement section, an article electronic tag attached to the article, the placement section electronic tag, and An article management system comprising: a tag reader that reads information stored in each of the electronic tags for articles using an electromagnetic wave; a blocking unit that blocks the electromagnetic waves; and a management computer that receives the information from the tag reader. And
The placement unit electronic tag is attached to correspond to a position where the article is placed in the article placement unit, and the management computer is configured to prevent the interference when the article is placed in the article placement unit. A storage unit that stores information corresponding to the electronic tag for the placement unit and the electronic tag for the article that cannot be read almost simultaneously using the tag reader due to interference of electromagnetic waves in the unit. It is said.
According to this feature, when the article is placed on the article placement portion, the interference portion interferes with electromagnetic waves, and the information on the placement portion electronic tag and the article electronic tag that cannot be read almost simultaneously using the tag reader. Is stored in the storage unit by referring to the storage unit, it becomes possible to determine in which position the article is placed in the article placement unit, and management of the article using an electronic tag Therefore, it is not necessary to perform wiring or the like to connect to the management computer or to connect a power cable to each placement unit electronic tag, and an article management system can be constructed at low cost.

The article management system according to claim 3 of the present invention is
A plurality of articles, an article placement section for placing the article, a plurality of placement section electronic tags attached to the article placement section, an article electronic tag attached to the article, the placement section electronic tag, and An article management system comprising: a tag reader that reads information stored in each of the article electronic tags using electromagnetic waves; and a management computer that receives the information from the tag reader;
The placement part electronic tag is attached to correspond to a position where the article is placed in the article placement part, and when the article is removed from the article placement part, the placement part electronic tag and When the electronic tag for goods is separated from each other, information on the electronic tag for placement unit and the electronic tag for goods is read using the tag reader, and the management computer is read using the tag reader. It has the memory | storage part which matches and memorize | stores the information of the said electronic tag for arrangement | positioning parts and the said electronic tag for goods.
According to this feature, when an article is removed from the article placement unit, it is read using the tag reader, utilizing the phenomenon that communication between the electronic tags and the tag reader becomes impossible when the electronic tags are brought close to each other. If the information of the electronic tag for placement section and the electronic tag for goods thus stored is stored in correspondence in the storage section, the article at any position in the article placement section can be removed by referring to the storage section. It is now possible to manage items using electronic tags, and for each placement unit electronic tag, wiring etc. is connected to a management computer, or a power cable is connected Thus, an article management system can be constructed at a low cost.

The article management system according to claim 4 of the present invention includes:
A plurality of articles, an article placement section for placing the article, a plurality of placement section electronic tags attached to the article placement section, an article electronic tag attached to the article, the placement section electronic tag, and An article management system comprising a tag reader that reads information stored in each of the electronic tags for articles using electromagnetic waves, a disturbing unit that blocks the electromagnetic waves, and a management computer that receives the information from the tag reader. And
The placement portion electronic tag is attached to correspond to the position where the article is placed in the article placement section, and the management computer is configured to prevent the interference when the article is removed from the article placement section. A storage unit for storing information corresponding to the electronic tag for the placement unit and the electronic tag for the article that are read almost simultaneously using the tag reader by releasing the interference of the electromagnetic wave by the unit It is characterized by having.
According to this feature, when the article is removed from the article placement unit, the placement unit electronic tag and the article can be read almost simultaneously using the tag reader by releasing the interference of the electromagnetic wave by the disturbing unit. If the information of the electronic tag is stored in the storage unit in correspondence, it is possible to determine which position of the article in the article placement unit has been removed by referring to the storage unit. Goods can be managed by using it, and there is no need to connect to the management computer or connect a power cable to each placement unit electronic tag. Can be built.

An article management system according to claim 5 of the present invention is the article management system according to any one of claims 1 to 4,
The article placement section is flat, the article is placed on the article placement section, and the article electronic tag is provided on the bottom surface of the article.
According to this feature, when the article is placed in the article placement section, the article electronic tag on the bottom surface of the article is surely in contact with the placement section electronic tag corresponding to the placement position of the article, and the tag reader electromagnetic waves are emitted. It becomes possible to grasp that the article has been arranged at a predetermined arrangement position in the article arrangement unit, because the information on the electronic tag for the arrangement unit that has been obstructed becomes unreadable using the tag reader. There is no need to perform wiring or the like to connect to the management computer or to connect a power cable to each placement unit electronic tag, and an article management system can be constructed at low cost.

An article management system according to claim 6 of the present invention is the article management system according to any one of claims 1 to 5,
The placement portion electronic tag stores attachment position information to which the placement portion electronic tag is attached.
According to this feature, the attachment position information is directly stored in the electronic tag for the placement portion, and based on the readable attachment position information, no article is placed at the attachment position. Based on the attachment position information that can be grasped and cannot be read, it is possible to grasp that an article is arranged at the attachment position, and by simply reading the electronic tag for the placement unit using a tag reader, a separate management computer or the like This makes it possible to manage articles placed in the article placement unit without referring to the database or the like.

An article management system according to a seventh aspect of the present invention is the article management system according to any one of the first to sixth aspects,
The placement portion electronic tag stores placement portion tag ID information corresponding to the article placement portion and uniquely given to each placement portion electronic tag.
According to this feature, even if a plurality of article placement sections are provided by storing placement section tag ID information corresponding to the article placement section directly in the placement section electronic tag, the tag reader can be used. By simply using the placement unit electronic tag, it is possible to determine in which article placement unit the article is placed, and without having to refer to a database such as a management computer separately. It becomes possible to manage the arranged items.

An article management system according to claim 8 of the present invention is the article management system according to any one of claims 1 to 7,
The placement part electronic tag stores article information of an article placed at a position where the placement part electronic tag is attached.
According to this feature, it is possible to determine that the article is placed at the attachment position of the placement unit electronic tag that cannot be read using the tag reader, and to read the placement part electronic tag even after the article is removed. Thus, it is possible to determine what articles have been placed in the past at the mounting position of the placement portion electronic tag.

An article management system according to claim 9 of the present invention is the article management system according to any one of claims 1 to 8,
The article electronic tag stores article information of an article to which the article electronic tag is attached.
According to this feature, by attaching an electronic tag for an article to an article in a factory or the like, and storing the article information directly in the electronic tag for the article, the article can be simply placed on the article placement unit. The article information can be read by the tag reader and input to the management computer or the like.

  The best mode for carrying out the article management system according to the present invention will be described below based on examples.

  An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a perspective view showing a product display shelf in Example 1, and FIG. 2 is a longitudinal side view showing a shelf plate of the product display shelf. 3 is a cross-sectional plan view showing a shelf plate of a merchandise display shelf, FIG. 4 (a) is a perspective view showing an electronic tag for display section, and FIG. 4 (b) is an electronic tag for display section. FIG. 5 is a perspective view showing a product electronic tag, and FIG. 6A is a perspective view showing a state in which the product is placed on the display unit electronic tag. 6 (b) is a perspective view showing a state in which the product on the display unit electronic tag is removed, FIG. 7 is a block diagram showing a system configuration of the product display device, and FIG. 8 is a display unit table. 9 is a diagram showing a product table, FIG. 10 is a diagram showing a current state table, and FIG. Is a diagram showing a history table, FIG. 12 is a diagram showing a management screen of the product display shelf, Figure 13 is a flowchart of the update process performed by the management control circuit. In the following description, the left side of FIG. 2 is the front side (front side) of the product display shelf, and the lower side of FIG. 3 is the front side (front side) of the product display shelf.

  The code | symbol 1 of FIG. 1 is the goods display shelf 1 and the management computer 2 which comprise the goods display apparatus of this invention. The merchandise display shelf 1 and the management computer 2 are installed in merchandise stores such as supermarkets and convenience stores, etc., and products as articles in this embodiment such as processed foods and fresh foods displayed on the merchandise display shelves 1 3 is managed by using the management computer 2.

  As shown in FIG. 1, the product display shelf 1 is provided with a shelf plate 4 as an article placement section in the present embodiment having a plurality of stages (in this embodiment, 5 stages). It is formed of a metal member such as a metal article. In addition, the side plate 5 arrange | positioned at the right and left of the shelf board 4 is also formed of the metal member.

  A plurality of products 3 are displayed on the upper surface of the shelf board 4. In addition, on the top surface of the shelf plate 4, a plurality of display unit electronic tags 6 (RFID tags) as a placement unit electronic tag and an obstruction unit in this embodiment are attached. Are attached to the top surface of the shelf plate 4 corresponding to the position where the product 3 is arranged. In addition, as shown in FIG. 5, the electronic tag for goods and the electronic tag 6a (RFID tag) for goods as an obstruction | occlusion part in a present Example are affixed on the bottom face of each goods 3. As shown in FIG. The product electronic tag 6a is used for distribution management at the time of distribution from a factory to a store, accounting management performed at a cash register, or the like.

  As shown in FIG. 2, tag readers 8 are provided inside the back plate 7 of the merchandise display shelf 1 corresponding to each shelf plate 4. The tag reader 8 can communicate with the display unit electronic tag 6 attached to the shelf plate 4 and the product electronic tag 6 a attached to the product 3 using electromagnetic waves (radio waves). Since the shelf plate 4 and the side plate 5 are made of metal members, the electromagnetic wave diffusion range of one tag reader 8, that is, the readable range of the tag reader 8 is a range only on the upper surface side of one shelf plate 4. .

  As shown in FIGS. 1 and 2, in this embodiment, a shoplifting prevention surveillance camera 17 installed in a store is connected to the management computer 2 via a connection cable 18. In addition, a monitor 19 as notification means in the present embodiment for displaying a video taken by the monitoring camera 17 is installed at the upper end portion of the back plate 7 of the commodity display shelf 1.

  A shelf control circuit 9 for controlling each tag reader 8 is provided inside the bottom shelf 4. Further, the tag reader 8 and the shelf control circuit 9 are connected via a connection cable 10, and a control signal is transmitted to the tag reader 8 and electric power is supplied via the connection cable 10. .

  As shown in FIG. 1, the shelf control circuit 9 is connected to the management computer 2 via a connection cable 11 that extends outward from the commodity display shelf 1 and indoors via a power cable 12. Power is supplied from an external power source such as an outlet.

  As shown in FIG. 3, the display unit electronic tags 6 arranged on the substantially flat shelf plate 4 are arranged such that virtual lines α connecting the display unit electronic tags 6 have a lattice shape in plan view. Are arranged side by side in the row direction and the column direction. The attachment position of the display unit electronic tag 6 corresponds to the arrangement position of the product 3, and one product 3 is placed (displayed) on one display unit electronic tag 6 from above. .

  The attachment position (arrangement position) of the display unit electronic tag 6 is specified by the coordinates in the row direction and the column direction, and these coordinates are included in the coordinate items of the display unit table and the history table, which will be described later. Registration is made (see FIGS. 8 and 11).

  As shown in FIGS. 4A and 4B, the display unit electronic tag 6 transmits and receives information stored in the IC chip 14 and information stored in the IC chip 14 using electromagnetic waves. The electronic tag main body 16 having a substantially sheet shape having a coil antenna 15 is provided, and the electronic tag main body 16 and the tag reader 8 can communicate with each other using electromagnetic waves.

  The IC chip 14 of the display unit electronic tag 6 has a display unit tag ID uniquely assigned to the corresponding display unit electronic tag 6 and the shelf board 4 to which the display unit electronic tag 6 is attached. As described later, product position information relating to the product 3 (article information) such as the product name of the product 3 placed on the display unit electronic tag 6 is stored.

  As shown in FIG. 5, the merchandise electronic tag 6 a transmits and receives the IC chip 14 storing information and the information stored in the IC chip 14 using electromagnetic waves, like the electronic tag 6 for display section. And an electronic tag main body 16 having a substantially sheet shape.

  The IC chip 14 of the product electronic tag 6a has a product tag ID uniquely assigned to the corresponding product electronic tag 6a and a product name such as the product name of the product 3 to which the corresponding product electronic tag 6a is attached. 3 is stored.

  More specifically, in the electronic tag 6 for display section and the electronic tag 6a for goods, the coil antenna 15 generates power by electromagnetic induction by the electromagnetic wave irradiated from the tag reader 8, operates the IC chip 14, and the coil antenna 15 A passive electronic tag main body 16 (RFID tag) that reads information from the IC chip 14 by the non-contact method (wireless method) by the tag reader 8 is used. ing.

  As shown in FIG. 6A, the product 3 is placed on the shelf board 4, so that the product electronic tag 6 a attached to the bottom surface of the product 3 and the display unit attached to the shelf board 4. The electronic tag 6 is in contact (close proximity) with each other. When the electronic tags 6 and 6a are brought close to each other, a phenomenon that communication between the electronic tags 6 and 6a and the tag reader 8 cannot be performed occurs, and electromagnetic waves are generated between the electronic tags 6 and 6a and the tag reader 8. Communication using is impossible.

  As shown in FIG. 6B, the product 3 is removed from the shelf 4, so that the product electronic tag 6 a attached to the bottom surface of the product 3 and the display unit electronic tag attached to the shelf 4. 6 are separated from each other. When the electronic tags 6 and 6a are separated from each other, communication using electromagnetic waves becomes possible between the electronic tags 6 and 6a and the tag reader 8.

  Moreover, as shown in FIG. 4, the electronic tag 6 for display parts is affixed on the shelf board 4 via the magnetic sheet 22 as a magnetic member in a present Example. In general, when an RFID tag is affixed to a metal article, magnetic lines of force output from the tag reader 8 cause an eddy current inside the metal article, and this eddy current disables communication between the RFID tag and the tag reader 8. End up.

  However, in this embodiment, the magnetic sheet 22 is arranged between the display unit electronic tag 6 and the shelf plate 4 as a metal article, so that the magnetic lines of force output from the tag reader 8 are shielded by the magnetic sheet 22. It is possible to prevent the eddy current due to the magnetic lines of force from being generated inside the shelf plate 4. Therefore, even if the electronic tag 6 for display part is affixed on the shelf board 4, communication with the electronic tag 6 for display part and the tag reader 8 becomes possible, and the electronic tag 6 for display part is affixed on the shelf board 4 and used. Can do.

  Furthermore, as shown in FIG. 5, the electronic tag 6a for goods is affixed on the goods 3 through the magnetic sheet 22 as a magnetic member in a present Example similarly to the electronic tag 6 for display parts. Therefore, even if the product 3 is formed of a metal article such as a canned or canned beverage, the product electronic tag 6a and the tag reader 8 can communicate with each other, and the product electronic tag 6a is made of metal. It can be used by being affixed to a product 3 formed of articles.

  In addition, the electronic tag main body 16 of the electronic tag 6 for display part and the electronic tag 6a for goods in a present Example makes square shape by planar view, and the magnetic sheet 22 also has the same shape as the electronic tag main body 16, and this magnetic The size of the sheet 22 is slightly larger than the size of the electronic tag main body 16.

  A system configuration of the commodity display device in the present embodiment will be described. As shown in FIG. 7, the management computer 2 includes a display unit 23 having a management screen for displaying a current product management state, an input unit 24 for an administrator to perform an input operation on the management computer 2, It has a storage unit 25 in which various databases are stored, an RTC 26 (real time clock) for measuring the current time, and a management control circuit 27 for controlling the devices inside the management computer 2. The management computer 2 is connected to a monitoring camera 17 for monitoring the state of the merchandise display shelf 1 in the store.

  The merchandise display shelf 1 includes a plurality of display unit electronic tags 6 attached to the upper surface of each shelf plate 4, a tag reader 8 that reads information stored in the display unit electronic tags 6 of each shelf plate 4, A shelf control circuit 9 for controlling the tag reader 8 and a monitor 19 installed at the upper end of the back plate 7 of the commodity display shelf 1 are provided.

  Further, the shelf control circuit 9 operates the tag reader 8 at predetermined time intervals so that information is repeatedly read from the display unit electronic tag 6 and the product electronic tag 6 a arranged on the shelf plate 4. Each time the tag reader 8 is operated, the shelf control circuit 9 transmits information read from the display unit electronic tag 6 and the commodity electronic tag 6a using the tag reader 8 to the management computer 2 as read information. Yes.

  The management computer 2 is connected to the shelf control circuit 9 of the merchandise display shelf 1 via the connection cable 11 and is supplied with power from an external power source such as an indoor outlet via the power cable 13. The storage unit 25 of the management computer 2 has a display unit table in which information on the display unit electronic tag 6 shown in FIGS. 8 to 11 is registered, and a product table in which information on the product electronic tag 6a is registered. A database is stored that includes a current state table in which information on the current state of the shelf board 4 is registered, and a history table in which information such as an update time about the current state of the shelf board 4 is registered.

  As shown in FIG. 8, in the display unit table, the product display shelf 1 to which the corresponding display unit electronic tag 6 is attached in association with the display unit tag ID uniquely assigned to the display unit electronic tag 6 , The number of steps of the shelf plate 4 in the product display shelf 1, the coordinate position of the shelf plate 4 to which the display section electronic tag 6 is attached, and the product name of the product 3 placed on the corresponding shelf plate 4 And a reading state indicating whether or not the corresponding display unit electronic tag 6 can be read by the tag reader 8, and an update time item indicating the time when the reading state has changed. In the reading state item, the ON state is registered when the information stored in the display unit electronic tag 6 using the tag reader 8 can be read, and the OFF state is registered when the information cannot be read. Yes.

  As shown in FIG. 9, in the product table, the product name of the product 3 to which the corresponding product electronic tag 6a is attached in association with the product tag ID uniquely assigned to the product electronic tag 6a, and the corresponding There are provided a reading state indicating whether or not the product electronic tag 6a to be read can be read by the tag reader 8, and an update time indicating the time when the reading state has changed. In the reading state item, the ON state is registered when the information stored in the electronic tag 6a for merchandise using the tag reader 8 can be read, and the OFF state is registered when the information cannot be read. .

  The tag reader 8 arranged for each shelf board 4 includes a display unit electronic tag 6 attached to the corresponding shelf board 4 and a product electronic attached to the product 3 placed on the relevant shelf board 4. Since only the information of the tag 6 a is read, the read information read from the corresponding tag reader 8 corresponds to each stage of the shelf plate 4 in the commodity display shelf 1.

  As shown in FIG. 10, in the current state table, a product attached to the product 3 placed on the corresponding display unit electronic tag 6 in association with the display unit tag ID of the display unit electronic tag 6 The product tag ID of the electronic tag 6a for use is registered, and the current state indicating whether or not the product 3 is placed on the display unit electronic tag 6 is registered.

  In the item of the current state in the current state table, when the product 3 is placed on the display unit electronic tag 6, “placement” is registered, and the product 3 is displayed from the display unit electronic tag 6. When it is removed, “free” is registered. Furthermore, in the item of the product tag ID in the current state table, the product tag ID of the product electronic tag 6a of the product 3 arranged on the display unit electronic tag 6 is registered. When the product 3 is removed, the product tag ID of the product electronic tag 6a of the product 3 arranged immediately before the removal is registered.

  As shown in FIG. 11, the display unit electronic tag 6 of the display unit tag ID whose current state has changed is attached to the history table in association with the update time indicating the time when the current state has changed in the current state table. The number of the product display shelf 1, the number of stages of the shelf plate 4 in the product display shelf 1, the coordinate position where the display unit electronic tag 6 is attached to the shelf plate 4, and the corresponding shelf plate 4. The product name of the product 3 and the current state indicating whether or not the product 3 is placed at the corresponding coordinate position are registered.

  In the current state item in the history table, as in the current state table described above, when the product 3 is placed at the corresponding coordinate position, “placement” is registered, and the product from the corresponding coordinate position is registered. When 3 is removed, “empty” is registered.

  As shown in FIG. 12, a management screen created based on the display section table and the current state table is displayed on the display section 23 of the management computer 2. On this management screen, for each level of the shelf 4 of each product display shelf 1, the number of levels of the shelf 4 and the product name of the product 3 placed on the shelf 4 are displayed, and the shelf 4 The coordinate position (placement position) of the product 3 is displayed by dividing the figure to be shown in a grid shape, and whether or not the product 3 is placed at each corresponding coordinate position is displayed.

  When the product 3 is placed at the coordinate position of each shelf board 4, the information on the display unit electronic tag 6 attached to the coordinate position of the corresponding shelf board 4 cannot be read using the tag reader 8. Therefore, the corresponding coordinate position on the management screen is colored and displayed. Further, when the product 3 is not placed at the coordinate position of each shelf board 4, the information of the display unit electronic tag 6 attached to the coordinate position of the corresponding shelf board 4 can be read using the tag reader 8. Since it is in a state, the corresponding coordinate position on the management screen is displayed in white. In this way, on the management screen, the manager can visually recognize how much of the product 3 is placed on each shelf board 4.

  In the present embodiment, the product electronic tag 6a is attached to the product 3 when the product 3 is shipped from the factory. At the time of shipment from the factory, product information on the product 3 such as a product tag ID and a product name is stored in the product electronic tag 6a. When the product 3 is displayed on the product display shelf 1 of the store, the information stored in the product electronic tag 6a is read using the tag reader 8 and automatically displayed in the product table of the management computer 2 installed in the store. Product information can be registered. Therefore, the product information is registered in the product table by an input operation of the store manager, or the product information is stored in the management computer 2 installed in the store with reference to a database such as a management computer (not shown) installed in the factory. No need to register.

  Furthermore, in this embodiment, the electronic tag 6 for display section is attached to the shelf board 4 when the merchandise display shelf 1 is shipped from the factory. At the time of shipment from the factory, the display portion tag ID, the attachment position information on the attachment position on the shelf plate 4 to which the corresponding display portion electronic tag 6 is attached, and the like are stored. When the product display shelf 1 is installed in the store, if the product display shelf 1 and the management computer 2 are connected, the tag reader 8 reads the information stored in the display unit electronic tag 6 and is installed in the store. Mounting position information and the like can be automatically registered in the display section table of the management computer 2. Therefore, it is attached to the management computer 2 installed in the store with reference to a database such as a management computer (not shown) installed in the factory by registering the installation position information in the display table by an input operation of the store manager. No need to register location information.

  Further, in the present embodiment, the item of product name in the display unit table automatically acquires product information including the product name from the product electronic tag 6a in the update process executed by the management computer 2 described later. Registration is based on product information.

  Next, update processing of the display section table, the product table, the current state table, and the history table executed by the management control circuit 27 of the management computer 2 in this embodiment will be described below with reference to the flowchart of FIG.

  As shown in FIG. 13, in the update process of each table in the management computer 2, first, in step Sa01, the management control circuit 27 displays the display unit read by the shelf control circuit 9 of the product display shelf 1 using the tag reader 8. The reading information of the electronic tag 6 for goods and the electronic tag 6a for goods is received. The read information includes the display unit tag ID, the product information, and the mounting position information stored in the IC chip 14 of the display unit electronic tag 6 and the product electronic tag 6a.

  The management control circuit 27 that has received the read information compares the received read information with the display unit table and the product table, and if there is a display unit tag ID and a product tag ID whose reading state has newly changed, Based on the read information, the display unit table ID corresponding to the corresponding display unit tag ID and the product tag ID and the item of the reading state of the product table are updated, the updated current time is counted by the RTC 26, and the display unit table and Update the item of update time in the product table.

  More specifically, the display state of the predetermined display unit tag ID and the product tag ID in the display unit table and the product table is ON, and the corresponding display unit tag ID and product tag ID included in the received read information are read. If the state is the OFF state, the reading state of the corresponding display unit tag ID and product tag ID in the display unit table and the product table is set to the ON state, assuming that the reading state has newly changed.

  In addition, the reading state of the predetermined display unit tag ID and the product tag ID in the display unit table and the product table is in an OFF state, and the reading state of the corresponding display unit tag ID and the product tag ID included in the received read information is If it is in the ON state, the reading state of the corresponding display unit tag ID and product tag ID in the display unit table and the product table is set to the OFF state, assuming that the reading state has newly changed.

  Then, the process proceeds to step Sa02, and the management control circuit 27 compares the update time of the display unit table with the update time of the product table, and the display unit tag whose reading time is ON at the same update time. It is determined whether there is an ID and a product tag ID, and if there is a display tag ID and a product tag ID whose reading time is ON at the same update time, the process proceeds to step Sa06, and the update time However, if there is no display part tag ID and product tag ID whose reading state is ON at the same time, the process proceeds to step Sa03.

  In step Sa03, the management control circuit 27 compares the update time of the display unit table with the update time of the product table, and displays the display unit tag ID and the product whose reading state is OFF at the same update time. It is determined whether or not there is a tag ID. If there is a display tag ID and a product tag ID whose reading time is OFF at the same update time, the process proceeds to step Sa04 and the update time is the same time. If there is no display part tag ID and product tag ID whose reading state is in the OFF state, the process ends.

  In step Sa04, the management control circuit 27 determines that there are two or more display unit tag IDs whose reading time is OFF at the same time in the display unit table, and the update time is the same time in the product table. When there are two or more product tag IDs in which the reading state is in the OFF state, the processing is terminated, and the display unit tag ID and the product tag ID in which the reading state is in the OFF state at the same time are 1 each. If it continues, the process proceeds to step Sa05.

  In the step of Sa05, the current state table is updated by associating the display unit tag ID and the product tag ID whose reading state is OFF at the same time, and the corresponding display unit tag ID and product tag ID in the current state table are updated. “Arrangement” is registered in the item of the current state corresponding to.

  In step Sa05, the management control circuit 27 additionally registers the update time in the history table, refers to the display unit table and the product table, and displays the display unit tag ID whose reading state is OFF at the same time. Register the number of the product display shelf 1 associated with the product tag ID, the number of stages of the shelf 4, the coordinate position of the electronic tag 6 for the display unit on the corresponding shelf 4, and the product name. Register “arrangement” in the item of the current state in the table.

  In the present embodiment, when the product 3 is placed on the shelf plate 4, the product electronic tag 6 a attached to the bottom surface of the product 3, and the display unit electronic tag 6 attached to the top surface of the shelf plate 4 , Contact each other (close proximity), and communication using electromagnetic waves becomes impossible between the electronic tags 6 and 6a and the tag reader 8 (see FIG. 6A). Therefore, in the step of Sa05, the electronic tags 6 and 6a to which the display unit tag ID and the product tag ID are assigned are mutually connected based on the display unit tag ID and the product tag ID whose reading state is in the OFF state at the same time. The current state table and the history table are updated by grasping that the coordinate position of the corresponding electronic tag 6 for display unit is in the “arranged” state by being touched.

  In the step of Sa04, when there are two or more display part tag IDs and product tag IDs whose reading states are turned off at the same time, two products 3 are placed on the shelf board 4 at the same time. In this case, since it is not possible to know which product 3 is placed on which display unit electronic tag 6 in this case, the process ends without performing the update process of the current state table and the history table. . At this time, it may be displayed on the display unit 23 of the management computer 2 to indicate to the administrator that the current state table and the history table need to be manually corrected.

  In step Sa06, the management control circuit 27 determines that there are two or more display unit tag IDs whose reading state is ON at the same update time in the display unit table, and the update time is the same time in the product table. If there are two or more product tag IDs whose reading state is ON, the process proceeds to step Sa09, and the display tag ID and product tag ID whose reading state is ON at the same update time are respectively If it is one, the process proceeds to step Sa07.

  In step Sa07, the current state table is updated by associating the display unit tag ID and the product tag ID whose reading state is ON at the same time, and the corresponding display unit tag ID and product tag ID in the current state table are updated. “Free” is registered in the item of the current state corresponding to.

  In step Sa07, the management control circuit 27 additionally registers the update time in the history table, refers to the display unit table and the product table, and displays the display unit tag ID whose reading state is ON at the same time. Register the number of the product display shelf 1 associated with the product tag ID, the number of stages of the shelf 4, the coordinate position of the electronic tag 6 for the display unit on the corresponding shelf 4, and the product name. “Free” is registered in the item of the current state in the table.

  In this embodiment, when the product 3 placed on the shelf plate 4 is removed, the product electronic tag 6a attached to the bottom surface of the product 3 and the display unit electronic tag attached to the top surface of the shelf plate 4 are used. 6 are separated from each other, and communication using electromagnetic waves becomes possible between the electronic tags 6 and 6a and the tag reader 8 (see FIG. 6B). Therefore, in the step of Sa07, the electronic tags 6 and 6a to which the display unit tag ID and the product tag ID are assigned are mutually connected based on the display unit tag ID and the product tag ID whose reading state is ON at the same time. The current state table and the history table are updated by grasping that the coordinate position of the corresponding display unit electronic tag 6 is in the “free” state after being separated.

  In the step of Sa06, when there are two or more display section tag IDs and product tag IDs whose reading state is ON at the same time, two products 3 are simultaneously removed from the shelf board 4 Therefore, it is not possible to know which product 3 has been removed from which display unit electronic tag 6, and in this case, the process proceeds to step Sa <b> 09 without updating the current state table and history table. At this time, it may be displayed on the display unit 23 of the management computer 2 to indicate to the administrator that the current state table and the history table need to be manually corrected.

  In the steps of Sa05 and Sa07, in the display unit table, the product name as the product information associated with the display unit tag ID is the product tag ID in which the corresponding display unit tag ID is associated with the current state table. May be updated so as to have the same product name as the product name associated in the product table. Furthermore, the product name as the product information may be rewritten on the IC chip 14 of the display unit electronic tag 6 using the tag reader 8 with the update of the display unit table. By doing in this way, the merchandise information corresponding to each shelf 4 stored in the display unit electronic tag 6 can be automatically rewritten according to the merchandise 3 placed on the shelf 4, for example, Even if the shelf plate 4 is removed and reattached to a different product display shelf 1, the product information stored in the display unit electronic tag 6 is automatically rewritten according to the product 3 to be placed.

  In step Sa08, the management control circuit 27 refers to the history table, determines whether there are five or more histories in which the item of the current state is “free” within 3 seconds, and becomes “free”. If there are 5 or more histories within 3 seconds, the process proceeds to step Sa09. If there are no more than 5 histories within 3 seconds, the process ends.

  In step Sa09, the management control circuit 27 activates the monitor 19 installed on the merchandise display shelf 1, and displays on the monitor 19 a video image of the merchandise display shelf 1 taken in the store by the monitoring camera 17. , The message “monitoring camera is operating” is displayed on the monitor 19 and the process is terminated. The monitor 19 is automatically stopped after a predetermined time has elapsed from the start of operation.

  When it is determined in the step of Sa06 that two or more products 3 have been removed from the shelf 4 at the same time, or in the step of Sa08, when five or more “empty” histories occur within 3 seconds, that is, 3 When it is determined that five or more products 3 have been removed from the shelf 4 within a second, the shoplifting action may be performed, unlike a customer generally removing the product 3 from the shelf 4 Is expensive. In such a case, by operating the monitor 19 in step Sa09, a warning can be given to the customer, which is a deterrent to shoplifting. Note that a buzzer or the like may be built in the monitor 19, and a buzzer sound may be sounded to notify the customer when the operation of the monitor 19 starts. Furthermore, the administrator can refer to the time zone in which the monitor 19 is operated, and can confirm the video taken by the monitoring camera 17 in the corresponding time zone.

  As described above, in the article management system in the present embodiment, the display unit electronic tag 6 is attached in correspondence with the position of the product 3 on the shelf 4, and the product 3 is arranged on the shelf 4. In addition, since the display unit electronic tag 6 and the product electronic tag 6a are close to each other, the information of the display unit electronic tag 6 and the product electronic tag 6a cannot be read using the tag reader 8, and the management computer 2 8 has a storage unit 25 that stores information corresponding to the electronic tag 6 for display unit and the electronic tag 6a for merchandise that can no longer be read by using the electronic tag 6. For the display unit that cannot be read using the tag reader 8 when the product 3 is placed on the shelf board 4 by utilizing the phenomenon that communication between the tags 6 and 6a and the tag reader 8 cannot be performed. If the information of the child tag 6 and the electronic tag for product 6a is stored in the storage unit 25 in association with each other, the storage unit 25 is referred to to determine the position on the shelf 4 where the product 3 is arranged. The product 3 can be managed using the electronic tags 6 and 6a, and the display unit electronic tags 6 are connected to the management computer 2 by wiring or the like, or the power cable 12 is not necessary, and an article management system can be constructed at a low cost.

  The display unit electronic tag 6 is attached in correspondence with the position on the shelf board 4 where the product 3 is arranged. When the product 3 is removed from the shelf board 4, the display unit electronic tag 6 and By separating the product electronic tag 6a from each other, information on the display unit electronic tag 6 and the product electronic tag 6a can be read using the tag reader 8, and the management computer 2 can read using the tag reader 8. By including the storage unit 25 that stores information on the electronic tag 6 for display unit and the electronic tag 6a for merchandise in association with each other, when the electronic tags 6 and 6a are brought close to each other, the electronic tag 6 By utilizing the phenomenon that communication between the tag readers 8 cannot be performed between the 6a and the tag reader 8, the display unit electronic tags 6 and 6 are read using the tag reader 8 when the product 3 is removed from the shelf board 4. If the information of the electronic tag 6a for goods is matched and memorize | stored in the memory | storage part 25, it can be judged by referring to this memory | storage part 25 where the goods 3 of the shelf 4 were removed. Thus, the product 3 can be managed using the electronic tags 6 and 6a, and each display unit electronic tag 6 is wired and connected to the management computer 2 or connected to the power cable 12. The article management system can be constructed at low cost.

  Further, the shelf plate 4 has a flat shape, the product 3 is placed on the shelf plate 4, and the product electronic tag 6 a is provided on the bottom surface of the product 3. When placed on the shelf board 4, the product electronic tag 6 a on the bottom surface of the product 3 is surely in contact with the display unit electronic tag 6 corresponding to the position where the product 3 is arranged to interfere with the electromagnetic waves of the tag reader 8. The information on the obstructed display unit electronic tag 6 can no longer be read using the tag reader 8, so that it is possible to grasp that the product 3 is arranged at a predetermined arrangement position on the shelf board 4, It is not necessary to connect each display unit electronic tag 6 to the management computer 2 by wiring or the like, or to connect the power cable 12, so that an article management system can be constructed at low cost.

  In addition, since the display portion electronic tag 6 stores the attachment position information to which the display portion electronic tag 6 is attached, based on the readable attachment position information, 3 can be grasped that the product 3 is not disposed and based on the unreadable reading position information, it can be grasped that the product 3 is disposed at the attachment position, and the tag reader 8 is used to display the electronic tag for the display unit. 6 can be managed separately without referring to a database such as a management computer (not shown) or the like installed in the manufacturing factory of the product display shelf 1 only by reading 6. Become.

  In addition, the display unit electronic tag 6 stores display unit tag ID information (arrangement unit tag ID information) corresponding to the shelf plate 4 and uniquely given to each display unit electronic tag 6. Thus, even when a plurality of shelf boards 4 are provided by storing display section tag ID information corresponding to the shelf boards 4 directly in the display section electronic tags 6, the tag reader 8 is used. By simply reading the electronic tag 6 for display unit, it is possible to determine whether or not the product 3 is arranged on which shelf plate 4, and a management computer (not shown) installed in the manufacturing factory of the product display shelf 1 separately. The product 3 arranged on the shelf board 4 can be managed without referring to the database or the like. Separately, information stored in the display unit electronic tag 6 can be read and managed by a handy terminal for the electronic tag.

  The display unit electronic tag 6 stores the product information of the product 3 arranged at the mounting position of the display unit electronic tag 6, so that the display unit electronic tag that cannot be read using the tag reader 8 is stored. It can be determined that the product 3 is disposed at the attachment position of the tag 6 and, even after the product 3 is removed, by reading the display portion electronic tag 6, the display portion electronic tag 6 can be placed at the attachment position. It is possible to determine what product 3 has been arranged in the past.

  The product electronic tag 6a stores the product information of the product 3 to which the product electronic tag 6a is attached, so that the product electronic tag 6a is attached to the product 3 at a factory or the like. By storing product information directly in the electronic tag 6a, the tag reader 8 can read the product information of the product 3 and input it to the management computer 2 simply by placing the product 3 on the shelf board 4.

  Next, an article management system according to the second embodiment will be described with reference to FIGS. It should be noted that the same components as those shown in the above-described embodiment are denoted by the same reference numerals and redundant description is omitted. FIG. 14 is a perspective view showing an electronic tag for goods in Example 2, and FIG. 15 is a perspective view showing a state in which goods are placed on a shelf board.

  As shown in FIG. 14, a metal seal 28 as an obstructing portion in this embodiment that covers all of the bottom surface is attached to the bottom surface of each product 3. The metal seal 28 is made of a metal member that shields electromagnetic waves. Further, a product electronic tag 6a (RFID tag) as an electronic tag for goods in the present embodiment is attached to a substantially central portion of the metal seal 28 via a magnetic sheet 22.

  As shown in FIG. 15, the shelf board 4 is formed of a metal member such as a steel material (metal article) as in the first embodiment. In the second embodiment, the shelf plate 4 itself constitutes a disturbing portion that blocks electromagnetic waves.

  In Example 2, the product 3 is slightly deviated so that the product electronic tag 6 a attached to the bottom surface of the product 3 and the display unit electronic tag 6 attached to the shelf plate 4 do not contact (adjacent) each other. The metal seal 28 of the product 3 is brought into contact (close proximity) with the display unit electronic tag 6 of the shelf plate 4 and the electromagnetic wave between the display unit electronic tag 6 and the tag reader 8 is used. Communication becomes impossible, and the product electronic tag 6a of the product 3 comes into contact (proximity) with the shelf plate 4 so that communication using the electromagnetic wave between the product electronic tag 6a and the tag reader 8 becomes impossible. Become.

  As described above, in the article management system according to the second embodiment, the display unit electronic tag 6 is attached to correspond to the position on the shelf board 4 where the product 3 is arranged. A memory that stores information corresponding to the electronic tag 6 for display unit and the electronic tag 6a for merchandise that cannot be read almost simultaneously using the tag reader 8 due to the electromagnetic wave being disturbed by the metal seal 28 when placed on the product. When the product 3 is arranged on the shelf board 4 by having the portion 25, the display unit electronic tag that cannot be read almost simultaneously using the tag reader 8 because the electromagnetic wave is disturbed by the metal seal 28. 6 and the electronic tag for product 6a are associated with each other and stored in the storage unit 25, the product 3 is arranged at any position on the shelf board 4 by referring to the storage unit 25. The product 3 can be managed using the electronic tags 6 and 6a, and the display unit electronic tags 6 are connected to the management computer 2 by wiring or the like. Therefore, it is not necessary to connect the power cable 12, and an article management system can be constructed at a low cost.

  The display unit electronic tag 6 is attached in correspondence with the position of the shelf 3 on which the product 3 is arranged. When the product 3 is removed from the shelf 4, the management computer 2 The storage unit 25 has a storage unit 25 for storing the information of the electronic tag for display unit 6 and the electronic tag for product 6a that are read almost simultaneously using the tag reader 8 by canceling the interference of the electromagnetic waves by 28. As a result, when the product 3 is removed from the shelf board 4, the interference with the electromagnetic wave by the metal seal 28 is released, so that the display unit electronic device can be read almost simultaneously using the tag reader 8. If the information of the tag 6 and the electronic tag for product 6a is associated and stored in the storage unit 25, the product 3 at any position on the shelf board 4 can be taken by referring to the storage unit 25. It becomes possible to determine whether the product has been removed, and the product 3 can be managed using the electronic tags 6 and 6a. The electronic tag 6 for each display unit is wired and connected to the management computer 2. Or the power cable 12 need not be connected, and an article management system can be constructed at a low cost.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above-described embodiment, the display unit electronic tag 6 is attached corresponding to the position where the product 3 is arranged on the top surface of the shelf board 4. It is not necessary to correspond to the arrangement position of 3, and when one product 3 is arranged on the shelf board 4, the one product 3 is simultaneously placed (closed) on the plurality of display unit electronic tags 6, The plurality of display unit electronic tags 6 may not be able to communicate with the tag reader 8, and in this case, a plurality of display unit electronic tags 6 on which one product 3 is placed in the current state table. The item of the coordinate position specified by may be provided, and the coordinate position and the product tag ID may be registered in association with each other.

  In the second embodiment, the hindering portion is formed by the metal seal 28 that covers the entire bottom surface of the product 3, but the container of the product 3 itself is a metal member that shields electromagnetic waves such as canned beverages (canned foods). The product 3 itself may be configured as an obstructing part.

  Further, in the second embodiment, the shelf plate 4 itself formed of a metal member is configured as an obstructing portion. However, when the shelf plate 4 itself is formed of a non-metal member such as a synthetic resin, You may comprise the upper surface of the shelf board 4 as an obstruction part by affixing the metal seal (not shown) which covers all the upper surfaces on the upper surface of the board 4. FIG. Further, as shown in FIG. 15, the metal seal 28 that is complementary to the metal seal 28 that is affixed to the product 3 is affixed to the upper surface of the shelf plate 4, and the product 3 is disposed on the upper surface of the shelf plate 4. In this way, after placing the product 3 at a position away from the metal seal 29 on the upper surface of the shelf plate 4, the product 3 is slid to move the metal seal 29. The product 3 is arranged on the upper surface of the product so that the electronic tags 6 and 6a of the product 3 and the shelf board 4 cannot be read almost simultaneously using the tag reader 8.

It is a perspective view which shows the goods display shelf in Example 1. FIG. It is a vertical side view which shows the shelf board of a goods display shelf. It is a cross-sectional top view which shows the shelf board of a goods display shelf. (A) is a perspective view which shows the electronic tag for display parts, (b) is a side view which shows the electronic tag for display parts. It is a perspective view which shows the electronic tag for goods. (A) is a perspective view which shows the state by which the goods were mounted on the electronic tag for display parts, (b) is a perspective view which shows the state from which the goods on the electronic tag for display parts were removed. . It is a block diagram which shows the system configuration | structure of a goods display apparatus. It is a figure which shows a display part table. It is a figure which shows a goods table. It is a figure which shows a present state table. It is a figure which shows a history table. It is a figure which shows the management screen of a merchandise display shelf. It is a flowchart of the update process performed in a management control circuit. It is a perspective view which shows the electronic tag for goods in Example 2. FIG. It is a perspective view which shows the state which mounts goods on a shelf board.

Explanation of symbols

1 Product display shelf 2 Management computer 3 Product (article)
4 shelf boards (article placement section, obstruction section)
5 Side plate 6 Electronic tag for display part (electronic tag, obstruction part)
6a Product electronic tags (electronic tags, obstructions)
7 Back plate 8 Tag reader 9 Shelf control circuit 10, 11 Connection cable 12, 13 Power cable 14 IC chip 15 Coil antenna 16 Electronic tag body 17 Monitoring camera 18 Connection cable 19 Monitor 22 Magnetic sheet 23 Display unit 24 Input unit 25 Storage unit 26 RTC
27 Management control circuit 28, 29 Metal seal (interference part)

Claims (9)

A plurality of articles, an article placement section for placing the article, a plurality of placement section electronic tags attached to the article placement section, an article electronic tag attached to the article, the placement section electronic tag, and An article management system comprising: a tag reader that reads information stored in each of the article electronic tags using electromagnetic waves; and a management computer that receives the information from the tag reader;
The placement part electronic tag is attached to correspond to a position where the article is placed in the article placement part, and when the article is placed in the article placement part, the placement part electronic tag and When the electronic tag for goods is close to each other, the information on the electronic tag for placement part and the electronic tag for goods is not readable using the tag reader, and the management computer is unable to read the information using the tag reader. An article management system comprising: a storage unit that stores information on an electronic tag for parts and information on the electronic tag for the article in association with each other. A plurality of articles, an article placement section for placing the article, a plurality of placement section electronic tags attached to the article placement section, an article electronic tag attached to the article, the placement section electronic tag, and An article management system comprising: a tag reader that reads information stored in each of the electronic tags for articles using an electromagnetic wave; a blocking unit that blocks the electromagnetic waves; and a management computer that receives the information from the tag reader. And
The placement unit electronic tag is attached to correspond to a position where the article is placed in the article placement unit, and the management computer is configured to prevent the interference when the article is placed in the article placement unit. A storage unit that stores information corresponding to the electronic tag for the placement unit and the electronic tag for the article that cannot be read almost simultaneously using the tag reader due to interference of electromagnetic waves in the unit. Article management system. A plurality of articles, an article placement section for placing the article, a plurality of placement section electronic tags attached to the article placement section, an article electronic tag attached to the article, the placement section electronic tag, and An article management system comprising: a tag reader that reads information stored in each of the article electronic tags using electromagnetic waves; and a management computer that receives the information from the tag reader;
The placement part electronic tag is attached to correspond to a position where the article is placed in the article placement part, and when the article is removed from the article placement part, the placement part electronic tag and When the electronic tag for goods is separated from each other, information on the electronic tag for placement unit and the electronic tag for goods is read using the tag reader, and the management computer is read using the tag reader. An article management system comprising: a storage unit for storing information on the electronic tag for the placement unit and the electronic tag for the article that have come to correspond to each other. A plurality of articles, an article placement section for placing the article, a plurality of placement section electronic tags attached to the article placement section, an article electronic tag attached to the article, the placement section electronic tag, and An article management system comprising: a tag reader that reads information stored in each of the electronic tags for articles using an electromagnetic wave; a blocking unit that blocks the electromagnetic waves; and a management computer that receives the information from the tag reader. And
The placement portion electronic tag is attached to correspond to the position where the article is placed in the article placement section, and the management computer is configured to prevent the interference when the article is removed from the article placement section. A storage unit for storing information corresponding to the electronic tag for the placement unit and the electronic tag for the article that are read almost simultaneously using the tag reader by releasing the interference of the electromagnetic wave by the unit An article management system characterized by   The article placement section is flat, the article is placed on the article placement section, and the article electronic tag is provided on a bottom surface of the article. The article management system according to any one of 1 to 4.   6. The article management system according to claim 1, wherein the placement portion electronic tag stores attachment position information to which the placement portion electronic tag is attached.   The placement part tag ID information corresponding to the article placement part and uniquely given to each placement part electronic tag is stored in the placement part electronic tag. The article management system according to claim 6.   The article management system according to any one of claims 1 to 7, wherein the placement part electronic tag stores article information of an article placed at an attachment position of the placement part electronic tag. .   9. The article management system according to claim 1, wherein article information of an article to which the article electronic tag is attached is stored in the article electronic tag.

Images