JP2009271711A - Article management system - Google Patents

Abstract

A failure of an RF-ID medium is detected while managing an article depending on whether information can be read from the RF-ID medium.
Antennas 4-1 to 4-4 for reading information from an RF-ID medium attached to an article stored in a cabinet 1, and information from the RF-ID medium by the antennas 4-1 to 4-4. There is a management personal computer 10 for managing whether or not an article to which the RF-ID media is attached is stored in the cabinet 1 based on whether it has been read, and an electric lock controller 20 for detecting the open / closed state of the door 2. The management personal computer 10 can no longer read information from the RF-ID media by the antennas 4-1 to 4-4 when the electric lock controller 20 detects that the door 2 is closed. If it is detected, the fact that a reading error has occurred in the RF-ID medium is output.
[Selection] Figure 1

Description

  The present invention relates to an article management system that manages an article stored in a storage area with a door using an RF-ID medium attached to the article, and more particularly, to a failure detection technique for an RF-ID medium.

  With the recent progress of the information-oriented society, information has become a valuable asset for companies as well as people and money, and its importance is increasing. Such information includes information printed on a paper medium and filed, information recorded on a recording medium as electronic data, and the like, and may be stored and stored in a storage area with high security.

  A storage with a door is conventionally used as a storage area for storing and storing such filed documents and recording media on which electronic data is recorded. To increase the security of the storage, A storage using an electronic lock is used. In a storage using an electronic lock, for example, there is provided a reading means for reading information from an IC card, and this reading means is unlocked when an ID determined from the IC card is read. . In this case, a mechanism is used in which an electronic lock is unlocked when an ID assigned to a person who has the authority to take out documents and recording media stored in the storage from the storage is read from the IC card. Yes.

  Also, for taking out documents and recording media and managing inventory, RF-ID media such as non-contact IC tags and non-contact IC labels that can read information in a non-contact state are attached to the documents and recording media. In addition, an antenna for reading information from the RF-ID media is arranged on the bottom plate or back plate of the shelf in which books and recording media are stored, and information is read from the RF-ID media via this antenna. A technology for taking out books and recording media and managing inventory depending on whether or not the product has been successfully developed has been considered.

By combining security management using these electronic locks with take-out and inventory management using RF-ID media, highly secure take-out and inventory management of documents and recording media stored in the storage area (For example, refer to Patent Document 1).
Japanese Patent No. 3527693

  In article management such as documents and recording media using RF-ID media as described above, the RF-ID media is attached to the article, and information from the RF-ID media is stored in a storage area in which the article is stored. Since an antenna for reading is arranged and information is taken out from the RF-ID media via this antenna and the article is taken out or stocked, the RF-ID attached to the article is used. If the media breaks down, then it becomes impossible to carry out an article with inventory of the failed RF-ID media and to manage inventory. Here, the failure of the RF-ID media is mainly caused by the failure of the IC chip, and the failure of the IC chip is difficult to identify with the naked eye. It is difficult, and there is a problem that reliability of taking out goods and inventory management is lowered.

  The present invention has been made in view of the problems of the prior art as described above, and it is possible to manage the article according to whether information can be read from the RF-ID medium while the RF-ID medium. It is an object of the present invention to provide an article management system capable of detecting a failure.

In order to achieve the above object, the present invention provides:
An article management system for managing an article stored in a storage area with a door using an RF-ID media attached to the article,
Information reading means arranged in the storage area and reading information from the RF-ID media;
Management means for managing whether or not an article to which the RF-ID medium is attached is stored in the storage area based on whether information is read from the RF-ID medium by the information reading means;
Open / close detecting means for detecting the open / closed state of the door;
When the information reading unit stops reading information from the RF-ID medium in a state where the opening / closing detection unit detects that the door is closed, the management unit Outputs that a reading error has occurred in the ID media.

  In the present invention configured as described above, the article stored in the storage area is arranged in the storage area, and the RF-ID medium attached to the article by the information reading means for reading information from the RF-ID medium. Whether the information is stored in the storage area is managed by the management means based on whether the information is read from the storage. When an article is taken out from this storage area, information cannot be read from the RF-ID media attached to the article. However, since the storage area in which the article is stored has a door, the door of the storage area is opened at that timing. It is the timing when it becomes a state. For this reason, when the information is not read from the RF-ID medium by the information reading means in the state where the door is closed by the open / close detection means in the management means, It is determined that a reading error has occurred, and a message to that effect is output.

  In addition, when a plurality of information reading means are arranged in the storage area and information is sequentially read from the RF-ID media, the period from when the door is opened until the article is taken out of the storage area and the door is returned to the closed state. In addition, information may not be read from the RF-ID medium by the information reading unit. For this reason, after the management means detects that the door is closed by the open / close detection means, the time required to read information from the RF-ID media by all of the plurality of information reading means has passed. If it is determined that a reading error has occurred in the RF-ID media when the reading means cannot read the information from the RF-ID media, the article to which the RF-ID media is attached is removed from the storage area. It can be determined whether it has been taken out or a reading error has occurred in the RF-ID media.

  As described above, according to the present invention, an article management system that manages an article stored in a storage area with a door using an RF-ID medium attached to the article, is disposed in the storage area and has an RF -Management for managing whether or not an article to which the RF-ID medium is attached is stored in the storage area based on whether the information is read from the RF-ID medium by the information reading means for reading information from the ID medium When the information reading means cannot read information from the RF-ID medium in a state where the opening / closing detecting means for detecting the open / closed state of the door detects that the door is closed, the RF- Since it is configured to output that a reading error has occurred on the ID media, information can be read from the RF-ID media. Whether while managing an article by either it can detect a failure of the RF-ID media by the output of the occurrence of read errors in RF-ID media.

  In addition, in the case where a plurality of information reading means are arranged in the storage area and sequentially read information from the RF-ID media, a plurality of information reading means are detected after the opening / closing detection means detects that the door is closed. If information cannot be read from the RF-ID media by the information reading means after the time required for reading the information from the RF-ID media by all of the information reading means has elapsed, a reading error occurs in the RF-ID media. In the configuration in which it is determined that the information has occurred, the information reading means performs RF− before the door is opened and the article is taken out of the storage area and the door is returned to the closed state. Even if information cannot be read from the ID medium, whether the article to which the RF-ID medium is attached has been taken out of the storage area or not. It can be determined whether the reading error has occurred at.

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

(First embodiment)
FIG. 1 is a diagram showing a first embodiment of an article management system according to the present invention, in which (a) is an external view and (b) is a configuration block diagram.

  As shown in FIG. 1, this embodiment includes a cabinet 1 that stores articles to be managed, and a management personal computer 10 that is a management means for managing the storage state of articles in the cabinet 1.

  The cabinet 1 has two sets of double doors 2 that are locked by an electric lock 5, and a total of four shelves 3 each having two stages are provided inside the door 2. The four shelves 3 each include four antennas 4-1 to 4-4 serving as information reading means, and reads information from an RF-ID medium attached to the article.

  The cabinet 1 includes a card reader 6 that reads a user ID from an ID card possessed by the user, and an open / close detection that controls locking / unlocking of the door 2 by the electric lock 5 based on the reading result of the card reader 6. The electric lock controller 20 that is means, the RFID controller 30 that controls reading of information from the RF-ID media via the antennas 4-1 to 4-4, and the articles stored in the cabinet 1 are illegally taken out. And an alarm device 7 for outputting an alarm in the case of an alarm. The electric lock controller 20, the RFID controller 30, and the alarm device 7 are connected to the management personal computer 10 via a LAN.

  The electric lock controller 20 stores and manages the opening / closing authority of the door 2 of the cabinet 1 in the memory 22, and the opening / closing authority management unit 21 that collates the reading result in the card reader 6 with the authority stored in the memory 22; An open / close control unit 23 that controls the opening / closing of the electric lock 5 based on the collation result in the open / close authority management unit 21, and a user who has read the open / close state of the door 2 controlled by the open / close control unit 23 by the card reader 6. An open / close state notification unit 24 that notifies the management personal computer 10 together with the ID is configured.

  The RFID controller 30 switches the reading of information via the antennas 4-1 to 4-4 by switching the current supply to the antennas 4-1 to 4-4 built in the four shelves 3. 31 and among the antennas 4-1 to 4-4 built in the four shelves 3, information is read from the RF-ID medium via the antenna supplied with the current by the antenna switching unit 31, and the read result for each antenna The information reading unit 32 stored in the memory 33, the information comparing unit 34 comparing information read through the same antenna, and the information stored in the memory 33 are read as a result of comparison in the information comparing unit 34. The information transmission unit 35 transmits the result of the change to the management personal computer 10. The antenna switching unit 31 switches the current supply to the antennas 4-1 to 4-4 built in the four shelves 3 every second, whereby the information written in the RF-ID media is changed to the information reading unit. 32 are sequentially read.

  The management PC 10 includes an electric lock setting unit 11 that sets the unlocking authority of the electric lock 5, an open / close state acquisition unit 12 that acquires the open / close state of the door 2 from the electric lock controller 20, and the RFID controller 30 via the antenna. Registered in the document information database 8a, the read information acquisition unit 13 that acquires a change in the reading results, the information acquired by the read information acquisition unit 13, the information acquired by the open / close state acquisition unit 12, and Based on the information, the situation determination unit 14 determines whether to take out the article from the cabinet 1 and the reading error in the RF-ID media attached to the article, and the article in the cabinet 1 based on the determination result in the situation determination unit 14 Storage status management unit 15 for registering and managing the storage status in the storage information database 8b, and an alarm for the cabinet 1 An alarm instruction section 16 to control the alarm output from 7, and a display unit 17 for displaying output information.

  FIG. 2 is a diagram showing an example of articles managed by the article management system shown in FIG.

  As an article managed by the article management system shown in FIG. 1, for example, there is a document file 100 as shown in FIG. The document file 100 is affixed with a non-contact type IC label 101 which is an RF-ID medium in which a document ID capable of identifying the document file 100 is written, and the document file 100 is placed on the shelf 3. In the state, the document ID written on the non-contact type IC label 101 is read through the antennas 4-1 to 4-4. The non-contact type IC label 101 may be attached to the inner surface of the document file 100, and the non-contact type IC label 101 is not attached to the document file 100 as an RF-ID medium. An RF-ID medium such as a contact IC tag may be incorporated in the document file 100 itself, or an insertion part may be provided in the document file 100 by a film case or the like and stored therein.

  Hereinafter, as an article management method in the article management system configured as described above, a case where the storage status of the document file 100 shown in FIG. 2 in the cabinet 1 is managed will be described as an example.

  First, opening / closing control of the electric lock 5 will be described.

  FIG. 3 is a flowchart for explaining opening / closing control of the electric lock 5 in the article management system shown in FIG.

  When a user who wants to take out the document file 100 stored in the cabinet 1 puts the ID card in which the user ID is written on the card reader 6, the user ID is read from the ID card in the card reader 6. (Step S1). The card reader 6 is provided on the front surface of the cabinet 1, and the user puts the ID card in the area where the card reader 6 is provided on the front surface of the cabinet 1.

  The user ID read by the card reader 6 is notified to the opening / closing authority management unit 21.

  In the open / close authority management unit 21, the user ID notified from the card reader 6 is collated with the user ID stored in the memory 22, so that the user ID notified from the card reader 6 identifies the user ID. It is determined whether or not the user to be authorized has the authority to unlock the electric lock 5 (step S2). Here, the authority to unlock the electric lock 5 is set in the electric lock setting unit 11 of the management computer 10, and the user ID of the user who has the authority to unlock the electric lock 5 is stored in the memory 22. Since it is stored, the open / close authority management unit 21 is notified from the card reader 6 by collating the user ID notified from the card reader 6 with the user ID stored in the memory 22. It can be determined whether or not the user identified by the user ID has the authority to unlock the electric lock 5.

  If the user identified by the user ID notified from the card reader 6 does not have the authority to unlock the electric lock 5, an error is output by an LED or the like (not shown) provided in the cabinet 1. If the user identified by the user ID notified from the card reader 6 has the authority to unlock the electric lock 5, the control by the opening / closing control unit 23 is performed. The electric lock 5 is unlocked and the door 2 can be freely opened and closed (step S4). Thus, the electric lock controller 20 detects that the door 2 has been opened.

  In the electric lock controller 20, when the electric lock 5 is unlocked, the fact that the electric lock 5 has been unlocked and the user ID read by the card reader 6 and the electric lock 5 are unlocked. The information indicating the time is notified from the open / close state notifying unit 24 to the management personal computer 10 (step S5).

  In the management personal computer 10, the information notified from the open / close state notification unit 24 is acquired by the open / close state acquisition unit 12 (step S6). Thereby, in the management personal computer 10, it is managed when and by which user the electric lock 5 of the cabinet 1 is unlocked.

  Thereafter, when the door 2 is closed (step S7), the electric lock 5 is locked, and the fact that the electric lock 5 is locked is notified to the management personal computer 10 from the open / close state notification unit 24 together with information indicating the time ( Step S8). As a result, the electric lock controller 20 detects that the door 2 is closed.

  In the management personal computer 10, the information notified from the open / close state notification unit 24 is acquired by the open / close state acquisition unit 12 (step S9). Thereby, in the management personal computer 10, when the electric lock 5 of the cabinet 1 was locked is managed.

  Next, management of taking out the document file 100 from the cabinet 1 and reading error output processing of information from the non-contact type IC label 101 will be described.

  FIG. 4 is a flowchart for explaining take-out management of the document file 100 from the cabinet 1 and reading error output processing of information from the non-contact type IC label 101 in the article management system shown in FIG.

  In the RFID controller 30, the antenna switching unit 31 switches the supply of current to the antennas 4-1 to 4-4 incorporated in the four shelves 3, and is thus placed on the shelf 3. The antenna for reading the document ID written on the non-contact IC label 101 attached to the document file 100 stored in the cabinet 1 is switched (step S11).

  In the information reading unit 32 of the RFID controller 30, the document ID is read via the antenna supplied with current by the antenna switching unit 31 among the antennas 4-1 to 4-4 built in the four shelves 3. Performed (step S12). Then, the read document ID is sent to the information reading unit 32 together with an antenna ID that can identify the antenna from which the document ID is read.

  In the information reading unit 32, the document ID read via the antenna is stored in the memory 33 (step S13).

  FIG. 5 is a diagram illustrating an example of information stored in the memory 33 illustrated in FIG.

  As shown in FIG. 5, the memory 33 shown in FIG. 1 reads each of the antennas 4-1 to 4-4 built in the four shelves 3 through the antennas 4-1 to 4-4. The issued document ID is stored in association with the antenna ID that can identify the antennas 4-1 to 4-4. The document ID is stored every time current is supplied to the antennas 4-1 to 4-4 by the antenna switching unit 31, but as shown in FIG. The result of reading the information twice is stored.

  In the information comparison unit 34 of the RFID controller 30, the document IDs read through the antennas 4-1 to 4-4 built in the four shelves 3 and stored in the memory 33 are built in the four shelves 3. For each of the antennas 4-1 to 4-4, the document ID previously stored in the memory 33 and the document ID stored in the current memory 33 are compared (step S14).

  If there is a document ID that does not match between the document ID previously stored in the memory 33 and the document ID stored in the memory 33 this time (step S15), the document ID is the antenna ID from which the document ID was read. Along with information indicating the antenna ID, information indicating the reading time of the current document ID, and information indicating whether the document ID is increased or decreased with respect to the previous reading result, the information transmitting unit 35 sends the management personal computer 10. (Step S16).

  The document ID transmitted from the information transmitting unit 35 to the management personal computer 10 is received by the read information acquisition unit 13 of the management personal computer 10 (step S17).

  When the document ID stored in the memory 33 this time has decreased with respect to the document ID previously stored in the memory 33 (step S18), first, the situation determination unit 14 acquires it by the open / close state acquisition unit 12. The opened / closed state of the door 2 is confirmed (step S19). The confirmation of the open / closed state of the door 2 is acquired by the open / closed state acquisition unit 12 immediately before the time and the information indicating the reading time of the document ID transmitted from the RFID controller 30 to the management personal computer 10 together with the document ID. Open / closed state.

  If the door 2 is closed at the document ID reading time (step S20), the document ID reading time, that is, the time when the document ID cannot be read, has passed 16 seconds after the door 2 is closed. It is judged whether or not (step 21). Here, in the antenna switch 31 shown in FIG. 1, the current supply to the antennas 4-1 to 4-4 incorporated in the four shelves 3 is switched every second, so that the four shelves 3 It takes 16 seconds for information to be read through all the built-in antennas 4-1 to 4-4. Therefore, the non-contact type antenna is built in the area where the document file 100 is placed after the door 2 is opened and before the document file 100 is taken out of the cabinet 1 and the door 2 is closed. The document ID may not be read from the IC label 101. Therefore, it is determined whether the time when the document ID cannot be read is 16 seconds after the door 2 is closed. If 16 seconds has not passed, or the door 2 is open. If there is, it is determined that the document file 100 identified by the document ID has been taken out of the cabinet 1, and the document information database 8a is referred to by the status determination unit 14 to confirm the user authority (step S22).

  In the document information database 8a, an authority level is assigned to the user ID, and a security level is assigned to the document ID of the document file 100, and these authority levels and the security levels are associated with each other. Therefore, it is managed which document file 100 among the document files 100 stored in the cabinet 1 can be taken out by the user identified by the user ID.

  In the situation determination unit 14, the document information database 8a is referred to, and the confidential level of the document ID that can no longer be read and the authority level of the user who unlocked the electric lock 5 immediately before the time when the document ID can no longer be read. And the user who unlocked the electric lock 5 has the authority to take out the document file 100 whose document ID can no longer be read from the cabinet 1 (step S23), the storage status management unit 15 stores the storage information. The storage status of the document file 100 registered in the database 8b is updated to a state where the document file 100 whose document ID cannot be read is taken out of the cabinet 1 (step S24).

  Further, when the document ID stored in the memory 33 this time has increased with respect to the document ID stored in the memory 33 last time, the storage status of the document file 100 registered in the storage information database 8b is determined this time. The document file 100 identified by the increased document ID is updated to be returned to the cabinet 1. Therefore, even in the initial state, by performing this process, the document ID that can identify the document file 100 stored in the cabinet 1 is identified, and the antenna built in the shelf 3 on which the document file 100 is placed is identified. It can be registered in the storage information database 8b in association with possible antenna IDs. Thereby, by referring to the storage information database 8b, whether the document file 100 is stored in the cabinet 1, and if it is stored, in which shelf of which shelf the storage is not stored. If so, you can manage when and by which user it was taken out.

  If the user who has unlocked the electric lock 5 is not authorized to take out the document file 100 from which the document ID can no longer be read out from the cabinet 1, an instruction to output an alarm is output from the alarm instruction unit 16. An alarm is output from the alarm device 7 of the cabinet 1 (step S25).

  If the time when the document ID cannot be read is 16 seconds after the door 2 is closed, the situation determination unit 14 uses the non-contact IC label 101 on which the document ID is written. It is determined that a reading error has occurred, and that effect is displayed and output on the display unit 17 (step S26). This is because the time when the document ID can no longer be read is that 16 seconds have passed since the door 2 was closed, which means that the document ID can no longer be read when the door 2 is closed. In this case, since the document file 100 is not taken out of the cabinet 1, the non-contact type IC label 101 attached to the document file 100 is broken or the document file 100 is naturally inclined in the cabinet 1. This is because it is determined that the document ID cannot be read from the non-contact type IC label 101.

  It may be possible to notify the administrator that an error has occurred by sending an e-mail or the like.

  As described above, in the present embodiment, the document file 100 is stored in the cabinet 1 based on whether the document ID is read from the non-contact type IC label 101 by attaching the non-contact type IC label 101 to the document file 100. If the document ID cannot be read from the non-contact type IC label 101, it is checked whether the door 2 is in a closed state. If the door 2 is in a closed state, Since the non-contact type IC label 101 is configured to output that a reading error has occurred, the non-contact type IC label 101 can be managed while determining whether or not information can be read from the non-contact type IC label 101. Detecting a failure of the non-contact type IC label 101 based on an output of occurrence of a reading error in the IC label 101 It can be.

  Further, as described above, the door 2 is closed when it takes a predetermined time to read information through all of the antennas 4-1 to 4-4 built in the four shelves 3 respectively. If the document ID cannot be read from the non-contact type IC label 101 via the antenna after the predetermined time has elapsed since the start, the reading error occurs in the non-contact type IC label 101. It is a case where it takes a predetermined time for information to be read through all of the antennas 4-1 to 4-4 built in the four shelves 3 respectively. However, whether the document file 100 to which the non-contact type IC label 101 is attached has been taken out of the cabinet 1, or a reading error has occurred in the non-contact type IC label 101. It can be determined.

  In this embodiment, the document ID read via the antenna is stored in the memory 33 in the RFID controller 30, and only the document ID that does not match the previously stored one is transmitted to the management personal computer 10. However, the document ID read through the antenna is all transmitted to the management computer 10 together with the antenna ID of the antenna from which the document ID is read and information indicating the reading time. A configuration may also be adopted in which the results of reading through the same antenna are compared.

(Second Embodiment)
FIGS. 6A and 6B are diagrams showing a second embodiment of the article management system of the present invention, in which FIG. 6A is an external view and FIG. 6B is a configuration block diagram.

  As shown in FIG. 6, the present embodiment is different from that shown in the first embodiment in that the electric lock controller 120 is provided with a memory 125 for storing the unlocking / locking record of the electric lock 105. The only difference is that the information controller is not provided in the RFID controller 130 and that the alarm function including the alarm command unit and the alarm device in the first embodiment is not provided. A batch process in which the lock / locked state and the reading results via the antennas 104-1 to 104-4 are not transmitted to the management personal computer 110 in real time but are transmitted every hour or every day. Is what you do.

  Hereinafter, as an article management method in the article management system configured as described above, a case of managing the storage status of the document file 100 shown in FIG. 2 in the cabinet 1 will be described as an example.

  First, opening / closing control of the electric lock 105 will be described.

  FIG. 7 is a flowchart for explaining opening / closing control of the electric lock 105 in the article management system shown in FIG.

  When a user who wants to take out the document file 100 stored in the cabinet 101 puts the ID card in which the user ID is written on the card reader 106, the card reader 106 reads the user ID from the ID card. (Step S101).

  The user ID read by the card reader 106 is notified to the opening / closing authority management unit 121.

  In the open / close authority management unit 121, the user ID notified from the card reader 106 is collated with the user ID stored in the memory 122, so that the user ID notified from the card reader 106 is identified. It is determined whether or not the user to be authorized has the authority to unlock the electric lock 105 (step S102).

  When the user identified by the user ID notified from the card reader 106 does not have the authority to unlock the electric lock 105, an error is output by an LED or the like (not shown) provided in the cabinet 101. If the user identified by the user ID notified from the card reader 106 has the authority to unlock the electric lock 105, the opening / closing control unit 123 controls the user. The electric lock 105 is unlocked and the door 102 can be freely opened and closed (step S104). As a result, the electric lock controller 120 detects that the door 102 has been opened.

  In the electric lock controller 120, when the electric lock 105 is unlocked, the fact that the electric lock 105 has been unlocked, the user ID read by the card reader 106, and the electric lock 105 are unlocked. Information indicating the time is stored in the memory 125 (step S105). As a result, the memory 125 stores when and by which user the electric lock 105 of the cabinet 101 has been unlocked.

  Thereafter, when the door 102 is closed (step S106), the electric lock 105 is locked, and the fact that the electric lock 105 is locked is stored in the memory 125 together with information indicating the time (step S107). As a result, the electric lock controller 120 detects that the door 102 has been closed.

  When it is time to notify the opening / closing state of the door 102 (step S108), the information stored in the memory 125 is notified from the opening / closing state notification unit 124 to the management personal computer 110 (step S109).

  In the management personal computer 110, the information notified from the open / close state notification unit 124 is acquired by the open / close state acquisition unit 112 (step S110). Thus, in the management personal computer 110, it is managed when and by which user the electric lock 105 of the cabinet 101 is unlocked and then when it is locked.

  Next, management of taking out the document file 100 from the cabinet 101 and reading error output processing of information from the non-contact type IC label 101 will be described.

  FIG. 8 is a flowchart for explaining take-out management of the document file 100 from the cabinet 101 and reading error output processing of information from the non-contact type IC label 101 in the article management system shown in FIG.

  In the RFID controller 130, the antenna switching unit 131 switches the supply of current to the antennas 104-1 to 104-4 respectively built in the four shelves 103, so that the antennas are placed on the shelves 103. The antenna for reading the document ID written on the non-contact type IC label 101 attached to the document file 100 stored in the cabinet 101 is switched (step S111).

  In the information reading unit 132 of the RFID controller 130, the document ID can be read through the antenna supplied with the current by the antenna switching unit 131 among the antennas 104-1 to 104-4 respectively built in the four shelves 3. Performed (step S112). Then, the read document ID is sent to the information reading unit 132 together with an antenna ID that can identify the antenna from which the document ID is read.

  In the information reading unit 132, the document ID read through the antenna is stored in the memory 133 together with the antenna ID of the antenna from which the document ID was read and information indicating the reading time (step S113).

  Thereafter, when it is time to transmit the read result via the antenna (step S114), the information stored in the memory 133 is transmitted from the information transmitting unit 135 to the management personal computer 110 (step S115).

  In the management personal computer 110, the information transmitted from the information transmission unit 135 is received by the read information acquisition unit 113 (step S116).

  Then, in the status determination unit 114 of the management personal computer 110, it is confirmed whether or not there is information with a change in the reading result with the same antenna for the information received by the reading information acquisition unit 113 (step S117). .

  As a result of confirmation in the situation determination unit 114, if there is information with a change in the reading result with the same antenna and the document ID is reduced (step S118), the situation determination unit 114 opens and closes The open / closed state of the door 102 acquired by the state acquisition unit 112 is confirmed (step S119). The confirmation of the open / closed state of the door 102 includes the information indicating the reading time of the document ID transmitted from the RFID controller 30 to the management personal computer 10 together with the document ID, and the information acquired by the open / closed state acquisition unit 112. This is performed using information indicating a state in which the door 102 is opened and closed immediately before the time.

  If the door 102 is closed at the reading time of the document ID (step S120), the reading time of the document ID, that is, the time when the document ID cannot be read has passed 16 seconds after the door 102 is closed. It is judged whether or not (step 121). Here, in the antenna switch 131 shown in FIG. 6, as in the case shown in FIG. 1, the current supply to the antennas 104-1 to 104-4 respectively built in the four shelves 103 is performed every second. Since the switching is performed, it takes 16 seconds to read information through all of the antennas 104-1 to 104-4 incorporated in the four shelves 103, respectively. Therefore, a non-contact type antenna is built in an area where the document file 100 is placed after the door 102 is opened and before the document file 100 is taken out of the cabinet 101 and the door 102 is closed. The document ID may not be read from the IC label 101. Therefore, it is determined whether the time when the document ID cannot be read is 16 seconds after the door 102 is closed. If 16 seconds has not passed, or the door 102 is open. If there is, it is determined that the document file 100 identified by the document ID has been taken out of the cabinet 101, and the status determination unit 114 refers to the document information database 108a to check the user authority (step S122).

  In the document information database 108a, an authority level is assigned to the user ID, and a security level is assigned to the document ID of the document file 100, and these authority levels and the security levels are associated with each other. Therefore, it is managed which document file 100 can be taken out of the document files 100 stored in the cabinet 101 by the user identified by the user ID.

  In the situation determination unit 114, the document information database 108a is referred to, and the confidential level of the document ID that can no longer be read and the authority level of the user who unlocked the electric lock 105 just before the time when the document ID can no longer be read. And the user who unlocked the electric lock 105 has the authority to take out the document file 100 whose document ID cannot be read from the cabinet 101 (step S123), the storage status management unit 115 stores the storage information. The storage status of the document file 100 registered in the database 108b is updated to a state where the document file 100 whose document ID cannot be read is taken out of the cabinet 101 (step S124).

  If there is information that changes in the reading result with the same antenna as a result of the confirmation in the situation determination unit 114 and the document ID is increased, the storage situation management unit 115 stores the information. The storage status of the document file 100 registered in the information database 108 b is updated so that the document file 100 identified by the increased document ID is returned to the cabinet 101.

  If the user who has unlocked the electric lock 105 is not authorized to take out the document file 100 whose document ID can no longer be read from the cabinet 101, the display unit 117 displays that the illegal takeout has occurred. (Step S125).

  If 16 seconds have elapsed since the door 102 was closed when the document ID could not be read, the situation determination unit 114 uses the non-contact type IC label 101 on which the document ID is written. It is determined that a reading error has occurred, and the fact is displayed and output on the display unit 117 (step S126). This is because the time when the document ID is no longer read is 16 seconds after the door 102 is closed. This means that the document ID cannot be read when the door 102 is closed. In this case, since the document file 100 is not taken out of the cabinet 101, the non-contact type IC label 101 attached to the document file 100 is broken or the document file 100 is naturally tilted in the cabinet 101. This is because it is determined that the document ID cannot be read from the non-contact type IC label 101.

  As described above, in the article management system of the present invention, the fact that the electric locks 5 and 105 are unlocked / locked, and the reading via the antennas 4-1 to 4-4 and 104-1 to 104-4 are performed. The present invention can be realized with any configuration in which a result is transmitted to the management personal computer 10 in real time or a batch process in which such information is transmitted every hour or every day.

  In the above-described two embodiments, a reading error occurs in the non-contact type IC label 101 when the time when the document ID cannot be read is 16 seconds after the doors 2 and 102 are closed. However, the time is not limited to 16 seconds, and when a time sufficient to read information from the non-contact type IC label 101 with all of the plurality of antennas has elapsed, the non-contact type IC label 101 Therefore, it is determined that a reading error has occurred.

  The number of cabinets 1, 101 and shelves 3, 103 in the two embodiments described above, and the number of antennas 4-1 to 4-4, 104-1 to 104-4 built in one shelf are as follows. Not limited to these, it can be set as appropriate. When a plurality of cabinets 1 and 101 are managed by one management personal computer 10 and 110, the electric lock controllers 20 and 120 and the RFID controllers 30 and 130 for each cabinet 1 and 101 are branched by a hub or the like.

It is a figure which shows 1st Embodiment of the article | item management system of this invention, (a) is an external view, (b) is a block diagram. It is a figure which shows an example of the article | item managed by the article | item management system shown in FIG. It is a flowchart for demonstrating opening / closing control of the electric lock in the article | item management system shown in FIG. 3 is a flowchart for explaining document file take-out management from a cabinet and information read error output processing from a non-contact type IC label in the article management system shown in FIG. 1. It is a figure which shows the example of the information memorize | stored in the memory shown in FIG. It is a figure which shows 2nd Embodiment of the article | item management system of this invention, (a) is an external view, (b) is a structure block diagram. It is a flowchart for demonstrating opening / closing control of the electric lock in the article | item management system shown in FIG. 7 is a flowchart for explaining document file take-out management from a cabinet and information read error output processing from a non-contact type IC label in the article management system shown in FIG. 6.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101 Cabinet 2,102 Door 3,103 Shelf 4-1-4-4, 104-1 to 104-4 Antenna 5,105 Electric lock 6,106 Card reader 7 Alarm 8a, 108a Document information database 8b, 108b Storage information database 10, 110 Management personal computer 11, 111 Electric lock setting unit 12, 112 Opening / closing state acquisition unit 13, 113 Reading information acquisition unit 14, 114 Situation judgment unit 15, 115 Storage state management unit 16 Alarm command unit 17, 117 Display unit 20,120 Electric lock controller 21, 121 Open / close authority management unit 22, 33, 122, 125, 133 Memory 23, 123 Open / close control unit 24, 124 Open / close state notification unit 30, 130 RFID controller 31, 131 Antenna switching unit 32,132 Information reading unit 34 Information comparing unit 35, 135 Information Transmitter 100 Document File 101 Non-contact IC Label

Claims (2)

An article management system for managing an article stored in a storage area with a door using an RF-ID media attached to the article,
Information reading means arranged in the storage area and reading information from the RF-ID media;
Management means for managing whether or not an article to which the RF-ID medium is attached is stored in the storage area based on whether information is read from the RF-ID medium by the information reading means;
Open / close detecting means for detecting the open / closed state of the door;
When the information reading unit stops reading information from the RF-ID medium in a state where the opening / closing detection unit detects that the door is closed, the management unit An article management system that outputs that a reading error has occurred in an ID medium. In the article management system according to claim 1,
A plurality of the information reading means are arranged in the storage area, sequentially read information from the RF-ID media,
The management means detects that the door is closed by the open / close detection means, and has elapsed time for reading information from the RF-ID media by all of the plurality of information reading means. Thereafter, when information cannot be read from the RF-ID medium by the information reading unit, it is determined that a reading error has occurred in the RF-ID medium.

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