JP5422071B1 - Goods management system - Google Patents

Abstract

In a plurality of storage areas provided so that storage spaces are adjacent to each other, the storage space for the articles is managed without complicated operations even when the articles are stored in the vicinity of the boundary between the storage spaces.
In a personal computer for management, when one unique information is read in a plurality of storage spaces by a handy terminal, a numerical value in the reading result is compared between the plurality of storage spaces, and the numerical value is predetermined. If it is equal to or less than the threshold value, it is determined that the article identified by the specific information is stored in the vicinity of the boundary between the plurality of storage spaces.
[Selection] Figure 1

Description

  The present invention relates to an article management system for managing articles, and more particularly to an article management system for judging and managing a storage space in which articles are stored by reading unique information written on an IC tag attached to the article. .

  2. Description of the Related Art Conventionally, management of articles such as product inventory management and document storage status management is performed by an administrator or an operator reading identification information given in advance to the article. The identification information given in advance to the article is printed on a label or the like and attached to the article, or printed on a cardboard or the like in which the article is stored. The manager or the operator manages the article. If this is the case, this identification information is read first. Which item the identification information is given to is managed by the host computer or the like, and by inputting the identification information read from the product or the like by the administrator or operator to the host computer or the like, The storage status of documents will be grasped.

  In recent years, with the advancement of RFID technology in the UHF band, a technology for performing article management as described above using an IC tag has been considered.

  For example, in Patent Document 1, an IC tag indicating a storage location is installed for each storage location to be specified, and an IC tag is attached to an article to be stored. A technique for managing a storage location of an article based on an intensity received from an IC tag attached to the article is disclosed. In this technique, the receiving intensity from the IC tag attached to the article is compared between the storage places, and the storage place with the highest receiving intensity is determined as the storage place of the article.

  Further, in Patent Document 2, as described above, an IC tag is attached to an article, and the reading result of identification information from the IC tag is used to determine and display the movement of the article from the storage location. Is disclosed.

JP 2009-113893 A JP 2009-251919 A

  As described above, when article management is performed using an IC tag, it is conceivable to increase the output of radio waves in order to improve the reading accuracy. However, in that case, if there are a plurality of storage spaces in which articles are stored, the identification information of the IC tag attached to one article may be read in the plurality of storage spaces. Therefore, as in the technique disclosed in Patent Document 1, the reception strength from the IC tag attached to the article is compared between the storage locations, and the storage location with the highest reception strength is determined as the storage location of the article. Can be considered.

  However, in an article stored near the boundary of a plurality of storage spaces, the reception intensity from the IC tag attached to the article may be the same value in the plurality of storage spaces. Therefore, for example, even when the article is stored in the storage space where the article is originally stored, the article is stored in the vicinity of the boundary with the adjacent storage space. When the reception intensity is slightly weaker than the reception intensity in the storage space adjacent to it, the article is stored in the storage space adjacent to it even though the article is stored in the storage space to be stored originally May be judged. In that case, it becomes impossible to accurately manage the storage space in which the article is stored, and the worker re-stores the article even though the article is stored in the storage space that should be stored. In addition, there is a problem that work to go to check the storage space occurs and the worker is confused when the article is subsequently delivered.

  The present invention has been made in view of the problems of the conventional techniques as described above, and in a storage area provided in a plurality so that the storage spaces are adjacent to each other, an article is provided near the boundary between the storage spaces. It is an object of the present invention to provide an article management system capable of managing an article storage space without complicating work even when stored.

In order to achieve the above object, the present invention provides:
An article management system for registering and managing a storage space in which a storage space for storing the article is stored in a database with respect to an article stored in a plurality of storage areas so that storage spaces for storing the articles are adjacent to each other,
An IC tag attached to the article and written with unique information for identifying the article;
Reading means for reading the unique information from the IC tag in a non-contact state in each of the plurality of storage spaces;
A management unit that determines that an article identified by the unique information is stored in the storage space in which the unique information is read by the reading unit, and registers the fact in the database;
When the reading unit reads one piece of unique information in a plurality of storage spaces, the management unit sets the number of readings of the unique information or the reception intensity from the IC tag in the reading unit between the plurality of storage spaces. If the difference in the number of readings or the received intensity is equal to or less than a predetermined threshold value, it is determined that the article identified by the specific information is stored in the vicinity of the boundary between the plurality of storage spaces, Is registered in the database.

In the present invention configured as described above, the unique information is read from the IC tag in a non-contact state by the reading means in each of the plurality of storage spaces in which the articles are stored, and the management means uniquely identifies the reading means. It is determined that the article identified by the unique information is stored in the storage space from which the information is read, and the fact is registered in the database, whereby the storage space in which the article is stored is managed. Here, in the articles stored near the boundaries of the plurality of storage spaces, the unique information is read by the reading unit from the attached IC tag in each of the plurality of adjacent storage spaces. Therefore, in some cases, it may be determined that the article is stored in the storage space adjacent to the storage space where the article is actually stored. Therefore, in the management means, when one piece of unique information is read in a plurality of storage spaces by the reading means, the numerical values in the reading result are compared between the plurality of storage spaces, and the difference between the numerical values is less than a predetermined threshold value. In some cases, it is determined that the article identified by the unique information is stored in the vicinity of the boundary between the plurality of storage spaces, and this is registered in the database.

  In this way, the unique information written on the IC tag attached to the article is read in a plurality of storage spaces, and the numerical value in the read result is the same value between the plurality of storage spaces. In some cases, the fact that the article is stored in the vicinity of the boundary between the plurality of storage spaces is registered in the database so that the worker recognizes that the article is stored in the vicinity of the boundary between the plurality of storage spaces. As a result, it is not necessary for the worker to check the storage space for the article, and the worker is not confused when the article is delivered.

Further, in the management means, the storage space in which the articles are stored is managed as the current storage space for each article, and when the difference in the number of readings or the reception intensity exceeds the threshold, the number of readings or the reception intensity is When it is determined that an article identified by the specific information is stored in a large storage space, the storage space is compared with the current storage space for the article, and the storage space is different from the current storage space It is possible to manage the movement of the article by determining that the article has moved and registering that in the database.

  According to the present invention, the unique information written on the IC tag attached to the article is read in a plurality of storage spaces, and the numerical value in the read result is the same between the plurality of storage spaces. If the value is a value, the fact that the article is stored in the vicinity of the boundary of the plurality of storage spaces is registered in the database, so even if the article is stored in the vicinity of the boundary of the plurality of storage spaces Therefore, the worker can recognize that fact, so that the storage space for the articles can be managed without making the work complicated.

  In addition, the management means manages the storage space in which the article is stored as the current storage space for each article, and when the numerical value exceeds the threshold value, the storage space with the large numerical value is identified by the specific information. Determining that the article is stored, comparing the storage space with the current storage space for the article, and determining that the article has moved if the storage space is different from the current storage space; By registering the fact in the database, the movement of the article can be managed.

It is a figure which shows one Embodiment of the article | item management system of this invention, (a) is a figure which shows schematic structure, (b) is a functional block diagram. It is a figure which shows an example of the storage area of the document box shown in FIG. It is a figure for demonstrating the management method of the storage state of the document box in the storage area | region shown in FIG. It is a figure which shows an example of the reading result database shown in FIG.1 (b). It is a flowchart for demonstrating the method of specifying the storage space in which the document box is stored in the article | item management system shown in FIGS. It is a figure which shows an example of the inventory management database shown in FIG.1 (b). It is a figure which shows the information displayed and output on the display part shown in FIG.1 (b). 4 is a flowchart for explaining a method of specifying a storage space when a storage space for a document box is not determined in advance in the article management system shown in FIGS. It is a figure which shows the other example of the inventory management database shown in FIG.1 (b).

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

  FIG. 1 is a diagram showing an embodiment of an article management system of the present invention, where (a) is a diagram showing a schematic configuration, and (b) is a functional block diagram.

  In this embodiment, as shown in FIG. 1A, an IC tag 1 is affixed to a document box 2 as an article, the article number written on the IC tag 1 is read by the handy terminal 3, and the article number read is read. Is transmitted to the management personal computer 5 serving as a management means via the cradle 4, thereby managing the storage space in which the document box 2 is stored so as to be specified.

  In the IC tag 1, an article number that can identify the document box 2 attached is written as unique information, and a radio wave for reading the UHF band is output from the handy terminal 3, so that the article can be contacted in a non-contact state. The number is read. The article number is registered in the management personal computer 5 in association with the document box 2 to which the IC tag 1 in which the article number is written is attached. The method of attaching the IC tag 1 to the document box 2 is not limited to sticking.

  The handy terminal 3 has an anti-collision function, and can output the article number from all of the IC tags 1 existing in the reading range by outputting a radio wave for reading. The handy terminal 3 is driven by a built-in storage battery, and the storage battery is charged by being placed on the cradle 4. A management personal computer 5 is connected to the cradle 4 via the LAN 8, and information including the article number read by the handy terminal 3 is transmitted to the management personal computer 5.

  The configuration shown in FIG. 1A will be described by function. As shown in FIG. 1B, the handy terminal 3 shown in FIG. 1A reads the article number written on the IC tag 1. The cradle 4 shown in FIG. 1A becomes the reading unit 11 and the transmission unit 12 that transmits information including the article number read by the reading unit 11 to the management personal computer 5. The reading unit 11 and the transmission unit 12 constitute a reading control unit 10 serving as a reading unit in the present invention. It is also conceivable that the reading control unit 10 is constituted only by the handy terminal 3 and the article number read from the IC tag 1 is directly transmitted from the handy terminal 3 to the management personal computer 5 without using the cradle 4. It is done.

  As shown in FIG. 1B, the management personal computer 5 shown in FIG. 1A includes an information acquisition unit 21, a reading result database 22, a storage space calculation unit 23, an inventory management database 24, and a display unit. 25.

  The information acquisition unit 21 acquires information including the article number transmitted from the transmission unit 12 and reads the number of readings of the article number read by the reading unit 11 for each storage space in which the document box 2 is stored. Register and manage in the result database 22.

  The storage space calculation unit 23 identifies the storage space in which the document box 2 is stored based on the number of readings registered in the reading result database 22, and determines the inventory status of the document box 2 and the document box 2 in storage. The inventory management database 24 manages the storage space that can be specified.

  The display unit 25 includes a display of the management personal computer 5 and its display control unit, and displays and outputs the storage status of the document box 2 based on the inventory status registered and managed in the inventory management database 24.

  Hereinafter, processing in the article management system configured as described above will be described.

  FIG. 2 is a diagram showing an example of the storage area of the document box 2 shown in FIG.

  As shown in FIG. 2, the storage area in this example is one in which two storage spaces 6a and 6b for storing the document box 2 shown in FIG. 1 are provided adjacent to each other.

  In each of the storage spaces 6a and 6b, four document boxes 2 shown in FIG. 1 are arranged side by side and stored. Specifically, the document boxes 2a to 2d are stored side by side in the storage space 6a, and the document boxes 2e to 2h are stored side by side in the storage space 6b.

  In this way, the stored storage spaces 6a and 6b are managed so as to be specified for the document boxes 2a to 2h stored in the two storage spaces 6a and 6b.

  FIG. 3 is a diagram for explaining a method for managing the storage state of the document boxes 2a to 2h in the storage area shown in FIG.

  When managing the storage state of the document boxes 2a to 2h in the storage area shown in FIG. 2, as shown in FIG. 3, the handy terminal 3 shown in FIG. 1 is connected to the document box 2a in each of the storage spaces 6a and 6b. The article numbers written on the IC tags 1a to 1h attached to the document boxes 2a to 2h are read. At this time, IC tags 7a and 7b in which information capable of specifying the storage spaces 6a and 6b are written are attached to the storage spaces 6a and 6b, respectively, and the handy terminal 3 is stored in the storage spaces 6a and 6b. Before facing the boxes 2a to 2h, each of the storage spaces 6a and 6b is opposed to the IC tags 7a and 7b, and the information that can identify the storage spaces 6a and 6b is read by the handy terminal 3, and then the article The storage spaces 6a and 6b in which the document boxes 2a to 2h to which the IC tags 1a to 1h whose numbers have been read are attached are stored can be specified. The storage spaces 6a and 6b are not limited to those using the IC tags 7a and 7b as described above, but are stored before the handy terminal 3 is opposed to the document boxes 2a to 2h in the storage spaces 6a and 6b. Information for identifying the storage spaces 6a and 6b for each of the spaces 6a and 6b is input to the handy terminal 3, and when the handy terminal 3 is moved between the storage spaces 6a and 6b, the information is given for each storage space 6a and 6b. May be input to the handy terminal 3 or the like.

  In the following description, article numbers A01 to 04 and B01 to 04 are respectively written in the IC tags 1a to 1h attached to the document boxes 2a to 2h, and the storage spaces 6a and 6b are stored in the storage locations A and A, respectively. B. The document boxes 2a to 2d are originally stored in the storage space 6a, and the document boxes 2e to 2h are originally stored in the storage space 6b.

  Information that can identify the article number and the storage spaces 6a and 6b read by the handy terminal 3 as described above is transmitted from the cradle 4 and acquired by the information acquisition unit 21 of the management personal computer 5 to store the storage space. The number of readings of the article number read by the handy terminal 3 is registered in the reading result database 22 for each of 6a and 6b.

  FIG. 4 is a diagram illustrating an example of the reading result database 22 illustrated in FIG.

  In the handy terminal 3, after the information capable of specifying the storage space 6a is read from the IC tag 7a, a predetermined number of reading operations are performed while facing the storage space 6a, and the document box is in the meantime. The number of readings of the article number from the IC tags 1a to 1d attached to 2a to 2d is registered in the reading result database 22. Similarly, after the information capable of specifying the storage space 6b is read from the IC tag 7b, a predetermined number of reading operations are performed while facing the storage space 6b, and the document box 2e is in the meantime. The number of readings of the article number from the IC tags 1e to 1h attached to ˜2h is registered in the reading result database 22.

  In the reading result database 22, the storage space that should be originally stored is registered in advance for each of the document boxes 2a to 2h, and as a result, as shown in FIG. The number of times the article number is read from the IC tags 1 a to 1 h in the storage space to be stored and the number of times the article number is read in the other storage space are registered in the reading result database 22. Specifically, the document box 2a is originally stored in the storage space 6a, and it is registered that the article number A01 is read 16 times from the IC tag 1a in the storage space 6a. The document box 2b is originally stored in the storage space 6a, and it is registered that the article number A02 is read 11 times from the IC tag 1b in the storage space 6b adjacent to the storage space 6a. The document box 2c is originally stored in the storage space 6a, and the article number A03 is read 13 times from the IC tag 1c in this storage space 6a, and from the IC tag 1c in the storage space 6b adjacent to the storage space 6a. It is registered that the article number A03 has been read twice. The document box 2d is originally stored in the storage space 6a. The article number A04 is read eight times from the IC tag 1d in the storage space 6a, and the IC tag 1d is read in the storage space 6b adjacent to the storage space 6a. It is registered that the article number A04 has been read nine times. The document box 2e is originally stored in the storage space 6b, and the article number B01 is read nine times from the IC tag 1e in this storage space 6b, and from the IC tag 1e in the storage space 6a adjacent to the storage space 6b. It is registered that the article number B01 has been read 15 times. The document box 2f is originally stored in the storage space 6b, and the article number B02 is read 15 times from the IC tag 1f in this storage space 6b, and from the IC tag 1f in the storage space 6a adjacent to the storage space 6b. It is registered that the article number B02 is read once. The document box 2g is originally stored in the storage space 6b, and it is registered that the article number B03 is read eight times from the IC tag 1g in the storage space 6b. The document box 2h is originally stored in the storage space 6b, and it is registered that the article number B04 is read 14 times from the IC tag 1h in the storage space 6b.

  After the number of readings of the article number is registered in the reading result database 22 in this way, the storage space calculating unit 23 stores the document box 2 based on the number of readings registered in the reading result database 22. A space is identified.

  FIG. 5 is a flowchart for explaining a method for specifying the storage space in which the document boxes 2a to 2h are stored in the article management system shown in FIGS.

  First, the storage space calculation unit 23 obtains read data including the read result registered in the read result database 22 (step 1).

  Next, it is determined whether or not each of the read article numbers is read in only one storage space (step 2).

  Then, with respect to the article number read in only one storage space, it is determined whether or not the storage space is a storage space in which the document box identified by the article number should be stored (step 3). .

  If the storage space from which the article number is read is a storage space where the document box identified by the article number is to be originally stored, it is determined that the document box is stored in the storage space to be originally stored. (Step 4). For example, when the reading result database 22 is the one shown in FIG. 4, the document box 2a identified by the article number A01 is stored in the storage space 6a that should be stored, and the article numbers B03 and B04. It is determined that the document boxes 2g and 2h identified by the above are stored in the storage space 6b that should be stored.

  If the storage space from which the item number is read is not the storage space in which the document box identified by the item number is originally to be stored, it is determined that the storage location has moved (step 5). For example, when the reading result database 22 is as shown in FIG. 4, the document box 2b identified by the article number A02 is moved and stored from the storage space 6a that should be stored to the storage space 6b. It is judged.

  If each of the read article numbers is read in a plurality of storage spaces, the number of readings is compared between the plurality of storage spaces (step 6).

  Then, it is determined whether or not the difference in the number of readings is equal to or less than the threshold value (step 7). If the difference is exceeded, it is determined that the document box is stored in the storage space with the larger number of reading times (step 7). Step 8).

  Thereafter, the process proceeds to step 3, and it is determined whether or not the storage space with the larger number of readings is the storage space in which the document box identified by the article number is originally stored. The process of 4 or step 5 is performed. For example, in the case where the reading result database 22 is as shown in FIG. 4 and the threshold is set to 3, the article number A03 in both the storage spaces 6a and 6b for the document box 2c identified by the article number A03. Is read, but the difference in the number of readings is 13-2 = 11, which exceeds the threshold value 3, and the number of readings in the storage space 6a is larger than the number of readings in the storage space 6b. It is determined that it is stored in the storage space 6a to be stored. For the document box 2f identified by the article number B02, although the article number B02 is read in both the storage spaces 6a and 6b, the difference in the number of readings is 15-1 = 4, and the threshold value 3 is set. Furthermore, since the number of readings in the storage space 6b is greater than the number of readings in the storage space 6a, it is determined that the storage space 6b is originally stored. For the document box 2e identified by the article number B01, the article number B01 is read in both the storage spaces 6a and 6b, and the difference in the number of readings is 15-9 = 5, which exceeds the threshold value of 3. Further, since the number of times of reading in the storage space 6b is larger than the number of times of reading in the storage space 6a, it is determined that the storage space 6b is originally stored and moved to the storage space 6a.

  If the difference in the number of readings is less than or equal to the threshold value, it is determined that the storage space is originally stored (step 9), and in the storage space, in the vicinity of the boundary with the adjacent storage space. It is determined that the document box is stored (step 10). For example, in the case where the reading result database 22 is as shown in FIG. 4 and the threshold is set to 3, the article number A04 in both the storage spaces 6a and 6b for the document box 2d identified by the article number A04. Since the difference in the number of readings is 9−8 = 1 and is equal to or less than the threshold value 3, the storage space 6a to be originally stored is stored near the boundary with the adjacent storage space 6b. It is judged that

  The storage space specified in this way is registered in the inventory management database 24 and managed as an inventory status.

  FIG. 6 is a diagram illustrating an example of the inventory management database 24 illustrated in FIG.

  As shown in FIG. 6, in the inventory management database 24, for each of the document boxes 2a to 2h, in addition to the information registered in the reading result database 22 shown in FIG. An inventory result indicating is registered. That is, in the present embodiment, as the inventory result, the document boxes 2b and 2f identified by the article numbers A02 and B01 are registered as the storage spaces moved, and the document box 2d identified by the article number A04 is The storage space 6a that should originally be stored is registered as being stored near the boundary with the adjacent storage space 6b.

  Thereafter, on the display unit 25, the storage status of the document boxes 2a to 2h is displayed and output based on the inventory status registered and managed in the inventory management database 24.

  FIG. 7 is a diagram illustrating information displayed and output on the display unit 25 illustrated in FIG.

  When the storage status of the document boxes 2a to 2h registered in the inventory management database 24 is as described above, the document box 2b identified by the article number A02 is displayed on the display unit 25 as shown in FIG. Is moved from the storage space 6a to the storage space 6b, and the storage space of the document box 2e identified by the article number B01 is moved from the storage space 6b to the storage space 6a. It is displayed that the document box 2d to be identified is stored in the vicinity of the boundary with the adjacent storage space 6b in the storage space 6a to be originally stored.

  Thus, the operator can recognize the document box in which the storage space has moved, and in the document box that is assumed to be stored in any of the plurality of storage spaces, In the space, it can be recognized that it is stored in the vicinity of the boundary with the adjacent storage space, and the worker is not confused when the article is delivered. In addition, a document box that is assumed to be stored in one of a plurality of storage spaces is assumed to be stored in a storage space that is supposed to be stored, so it is determined that the storage space has moved unnecessarily. Therefore, it is no longer determined that the document box is stored in the storage space adjacent to the document box, even though the document box is stored in the storage space that should be stored. No need to go to check the storage space.

  Further, in the display unit 25, when the article number has never been read by the handy terminal 3, the document box identified by the article number is displayed as undetected, or the IC tag that is being delivered or disposed of is discarded. When the written item number is read, it is displayed as non-stock item detection, or when an un-entry document box or an unregistered item number is read at the handy terminal 3, it is displayed as unregistered item detection. You can also

  Note that the information shown in FIG. 7 may be printed out instead of being displayed on the display unit 25.

  Further, in the present embodiment, the number of reading of the article number is described as an example as a numerical value based on the reading result in the handy terminal 3, but the strength of the reception strength from the IC tags 1a to 1h in the handy terminal 3 is read. It may be used as a numerical value.

  Further, in this embodiment, an example using the handy terminal 3 as a reading means has been described as an example, but the storage space 6a, 6b is automatically moved by a crane or the like, and the article number is assigned from the IC tags 1a to 1h. You may use what you read.

  Needless to say, the number of storage spaces and the number of document boxes stored in one storage space are not limited to those shown in the above-described embodiment. When there are three or more storage spaces, when an article number that can identify the document box is read in a plurality of storage spaces in which the document box is not originally stored, the number of readings in the storage space in which the document box is not originally stored is large. Each time the reading result database 22 is updated, the number of times of reading among the storage spaces is compared with the number of times of reading in the storage space in which the document box is originally stored.

  Also, it is not determined that a document box that is supposed to be stored in any of a plurality of storage spaces is stored near the boundary between adjacent storage spaces in the storage space that should be stored. Alternatively, it may be determined that one of the plurality of storage spaces is stored in the vicinity of the boundary between the storage space adjacent thereto.

  Further, in the present embodiment, in the reading result database 22, the storage space that should be originally stored is registered in advance for each of the document boxes 2 a to 2 h, and is read with only one storage space in Step 3. For the article number, it is determined whether or not the storage space is the storage space where the document box identified by the article number is to be stored, but the document box based on the previous reading result is stored in the reading result database 22. It is also conceivable that the storage spaces 2a to 2h are registered and judged including this. In this case, the storage space of the document boxes 2a to 2h based on the previous reading result becomes the current storage space, and the storage space calculation unit 23 refers to the reading result database 22 to store the storage space of the document boxes 2a to 2h based on the previous reading result. And the storage space determined in step 2 are compared, and if they are different, it is determined that the document box has moved.

(Other embodiments)
In the above-described embodiment, the storage space of the document box is determined in advance and registered in the reading result database 22, and the item number from the IC tag is stored in the storage space that should be originally stored for each of the document boxes. Although an example has been described in which the number of times read is compared with the number of times the article number is read in other storage spaces, the present invention is applied even when the storage space of the document box is not predetermined. Can be used.

  FIG. 8 is a flowchart for explaining a method for specifying the storage space when the storage space for the document box is not predetermined in the article management system shown in FIGS.

  First, the storage space calculation unit 23 obtains read data including the read result registered in the read result database 22 (step 11).

  Next, it is determined whether or not each of the read article numbers is read in only one storage space (step 12).

  For the article number read in only one storage space, it is determined that the document box identified by the article number is stored in the one storage space (step 13).

  When each of the read article numbers is read in a plurality of storage spaces, the number of readings is compared between the storage space with the highest number of readings and the storage space with the second highest number ( Step 14).

  Then, it is determined whether or not the difference in the number of readings is less than or equal to the threshold value (step 15). It is determined that

  If the difference in the number of readings is less than or equal to the threshold value, it is determined that the document box is stored in the storage space with the higher number of readings (step 16), and the storage space adjacent to the storage space is adjacent to the storage space. It is determined that the document box is stored in the vicinity of the boundary (step 17).

  The storage space specified in this way is registered in the inventory management database 24 and managed as an inventory status.

  FIG. 9 is a diagram showing another example of the inventory management database 24 shown in FIG.

  As shown in FIG. 9, the stock management database 24 includes a storage space in which the number of readings of the article number from the IC tags 1a to 1h is the highest for each of the document boxes 2a to 2h, and articles in the storage space. The number of times the number is read, the storage space in which the article number is read second from the IC tags 1a to 1h, and the number of times the article number is read in the storage space are registered in the inventory management database 24. The storage space determined as described above based on the reading result is registered. For example, since the article number A01 is read only in the storage space 6a, the document box 2a identified by the article number A01 is managed as being stored in the storage space 6a. Since the article numbers A02, B03, and B04 are read only in the storage space 6b, the document boxes 2b, 2g, and 2h identified by the article numbers A02, B03, and B04 are stored in the storage space 6b. Managed as. Further, although the article numbers A03 and B01 are read in both the storage spaces 6a and 6b, respectively, since the number of readings in the storage space 6a is larger than the number of readings in the storage space 6b, the article numbers A03 and B01 are identified. The document boxes 2c and 2e are managed as being stored in the storage space 6a. Further, although the article number B02 is read in both the storage spaces 6a and 6b, the number of readings in the storage space 6b is larger than the number of readings in the storage space 6a, so that the document box 2f identified by the article number B02 is stored. It is managed as being stored in the space 6b. Further, although the article number A04 is read in both the storage spaces 6a and 6b, the number of readings in the storage space 6b is larger than the number of readings in the storage space 6a, and the difference in the number of readings makes the above threshold 3 In this case, since 9−8 = 1 and the threshold value is 3 or less, the document box 2d identified by the article number A04 is managed as being stored near the boundary between the storage space 6b and the storage space 6a.

1,1a-1h, 7a, 7b IC tag 2,2a-2h Document box 3 Handy terminal 4 Cradle 5 Management PC 6a, 6b Storage space 8 LAN
DESCRIPTION OF SYMBOLS 10 Reading control part 11 Reading part 12 Transmission part 21 Information acquisition part 22 Reading result database 23 Storage space calculation part 24 Inventory management database 25 Display part

Claims (2)

An article management system for registering and managing a storage space in which a storage space for storing the article is stored in a database with respect to an article stored in a plurality of storage areas so that storage spaces for storing the articles are adjacent to each other,
An IC tag attached to the article and written with unique information for identifying the article;
Reading means for reading the unique information from the IC tag in a non-contact state in each of the plurality of storage spaces;
A management unit that determines that an article identified by the unique information is stored in the storage space in which the unique information is read by the reading unit, and registers the fact in the database;
When the reading unit reads one piece of unique information in a plurality of storage spaces, the management unit sets the number of readings of the unique information or the reception intensity from the IC tag in the reading unit between the plurality of storage spaces. If the difference in the number of readings or the received intensity is equal to or less than a predetermined threshold value, it is determined that the article identified by the specific information is stored in the vicinity of the boundary between the plurality of storage spaces, Article management system for registering in the database. In the article management system according to claim 1,
The management means manages the storage space in which the article is stored as the current storage space for each article, and if the difference in the number of readings or the reception intensity exceeds the threshold, the number of readings or the It is determined that an article identified by the specific information is stored in a storage space having a high reception intensity, and the storage space is compared with the current storage space for the article, and the storage space is compared with the current storage space. Is an article management system that judges that the article has moved when they are different and registers the fact in the database.

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