JP2011214347A - Key control box and holder used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a key control box which can improve a security level.SOLUTION: The key control box includes: an authentication means (S1); an opening/closing permission means (S4) which has a permission for opening/closing of an opening/closing door 31 when the personal identification is successful (S1:Yes); a presence/absence of holder detection means (S8) in which IC tag data are read by a plurality of IC tag data reading means 42 and a presence/absence of a holder 2 is detected after a door lock part 27 has a permission for opening/closing the opening/closing door 31; and an abnormality detection information storage means (S13) in which the undetectable IC tag data of the holder 2 determined as no presence/absence of holder detection means are collated with an access right stored in an access right storage means 48 and the authentication data read by an authentication means 32 are stored when the undetectable IC tag data are not included one or two or more of IC tag data corresponding to the authentication data read by the authentication means 32.

Description

  The present invention includes an IC tag having two terminals, a plurality of holders each having a plurality of mechanical keys attached to a conductive member that connects the two terminals via the IC tag, and each of the plurality of holders. A main body having a plurality of holder mounting holes to be mounted; and a plurality of IC tag data reading means provided in each of the plurality of holder mounting holes for reading IC tag data from the IC tag by contacting two terminals. The present invention relates to a key management box for detecting an abnormality of a holder when an IC tag data reading means cannot read IC tag data from the IC tag when the conductive member is cut, and a holder used for the key management box.

  Businesses are responsible for managing the storage of people, goods and money. Therefore, files and documents that describe information on people, things, money, etc., storage media (CD-ROM, USB memory, etc.) that store data, information, personal computers that handle data, drugs, medical records, etc. Are stored in a lockable storage. In order to increase the security of stored items, it is desirable that only those who have the authority (access right) to use the stored items open and close the lockable storage. Therefore, conventionally, the keys of the keyed storage are stored and managed in the key management box.

  However, in recent years, with the diversification of stored items, the number of storages has increased. Therefore, the key management box is required to have the ability to manage as many as 200 to 300 keys. As one mode of the key management box, there is a key management box in which a lock into which a mechanical key is inserted is provided in the key management box, and when the personal authentication can be performed, the lock is unlocked and the key can be taken in and out. However, since the lock is unlocked on condition that the shape of the lock coincides with that of the key, 100 is the limit for manufacturing keys and locks of different shapes. Therefore, if 200 to 300 mechanical keys are to be managed by the lock key management box, 2 to 3 key management boxes must be installed, and a plurality of key management boxes have the same shape of lock. Therefore, the security level was low.

  In this regard, if a mechanical key is replaced with a digital key having an IC tag and managed by a key management box, any number of different digital keys can be manufactured depending on the difference in IC tag data stored in the IC tag. However, since a digital key incorporates an electronic circuit equipped with an IC tag or the like, the price per one is higher than that of a mechanical key. In order to reduce the number of digital keys, it may be possible to open and close multiple storages with a single digital key. In this case, the lock on the storage side must be replaced with a lock for the digital key. It is costly. Therefore, in order to increase security, it is difficult for small and medium-sized businesses to replace existing mechanical keys with digital keys at a cost.

  Therefore, a key management box has been proposed in which a plurality of mechanical keys are attached to a key holder incorporating an IC tag having two terminals via wires, and the key holder is attached to the holder attachment hole of the main body. This key management box detects the presence or absence of a key based on whether or not the IC data reading means provided in the holder mounting hole comes into contact with the two terminals and can read the IC tag data from the IC tag. The key management box normally locks the key holder by the locking means. However, when the personal authentication is successful, the holder with the access right is unlocked to allow the key holder to be taken in and out. According to such a key management box, a plurality of mechanical keys can be managed with a single IC tag key holder, and the existing locks in the storage can be used as they are. Compared to the case, the introduction cost can be greatly reduced.

  However, in this key management box, even if the key holder wire is cut and the key is taken out illegally, it cannot be detected. Therefore, in the key holder, a wiring for connecting two terminals via the IC tag is drawn out to the outside, and a plurality of keys are attached to the wiring. By doing so, when the wiring is cut, the key management box cannot read the IC tag data by causing the IC tag data reading means to pass an electric current through the IC tag so that the cutting of the wiring can be detected. (For example, refer to Patent Document 1).

Japanese Patent Laid-Open No. 9-268811

  However, even if the key management box described in Patent Document 1 can detect the disconnection of the wiring, it cannot clearly determine who is responsible for it. Moreover, the key management box described in Patent Document 1 has a key holder that is always open to the outside, and it is possible to disconnect the key and remove the key from the key holder at any time regardless of the presence or absence of personal authentication. Therefore, the key management box described in Patent Document 1 cannot identify the person who disconnected the wiring, and has a low security level.

  Therefore, the present invention has been made to solve the above problems, and an object thereof is to provide a key management box that can raise the security level and a holder used for the key management box.

  In order to achieve the above object, according to one embodiment of the present invention, an IC tag including two terminals is provided, and a plurality of mechanical members are connected to a conductive member that connects the two terminals via the IC tag. A plurality of holders each having a key attached thereto, a main body having a plurality of holder mounting holes to which the plurality of holders are respectively mounted, and provided in the plurality of holder mounting holes, respectively, in contact with the two terminals, and A plurality of IC tag data reading means for reading IC tag data from the IC tag, and when the conductive member is cut, the IC tag data reading means cannot read the IC tag data from the IC tag, In the key management box for detecting the abnormality of the holder, the authentication data is read from an open / close door that is held in the main body so as to be opened and closed and opens the holder mounting hole, and an authentication medium. An authentication means for performing personal authentication, an opening / closing permission means for permitting opening / closing of the door when the authentication means has succeeded in the personal authentication, and associating the authentication data with one or more IC tag data. An access right storage means for storing an access right for a user to use one or more of the holders, and after the opening / closing permission means permits the opening / closing of the opening / closing door, the plurality of IC tag data reading means A holder presence / absence detecting means for reading the IC tag data and detecting the presence / absence of the holder, and the IC tag data that cannot be detected by the holder determined to have no holder presence / absence detecting means are stored in the access right storage means. The one or two or more IC tags corresponding to the authentication data read by the authentication means, wherein the undetectable IC tag data is collated with the access right. If not included in the data, and an anomaly detection information storage means for storing the authentication data in which the authentication means has been read.

  In the above-described configuration, the opening / closing detection means for detecting the opening / closing of the opening / closing door includes the holder presence / absence detection means, wherein the opening / closing detection means detects the closed state of the opening / closing door, and then the plurality of IC tag data reading means. It is desirable to read the IC tag data to detect the presence or absence of the holder.

  In the above-described configuration, there is a holder lending information storage unit that stores the IC tag data of the lent holder in association with the lending authentication data read by the authentication unit at the lending, and the opening / closing permission unit returns the holder It is desirable that the return-time authentication data read by the authentication means is collated with the holder lending information storage means, and when the return-time authentication data matches the lending-time authentication data, the opening / closing of the door is preferably permitted. .

  In the above configuration, when the holder and the holder mounting hole are in a one-to-one relationship, the holder locking means that locks the holder provided in each of the plurality of holder mounting holes, and the authentication means has succeeded in personal authentication. In addition, it is preferable that the user who has succeeded in the personal authentication has a holder lock releasing means for causing the holder lock means to release the lock of the holder having the access right.

  In the above-described configuration, it is desirable to have an abnormality warning means for warning an abnormality when the IC tag data reading means stops reading the IC tag data of a holder for which the user who has succeeded in the personal authentication does not have access rights.

  In the above configuration, the holder has a first conductive terminal for connecting one end of the conductive member inserted into the holder to one of the two terminals, and the other end of the conductive member inserted into the holder. A second conductive terminal to be connected to the other of the two terminals and the conductive member are disposed on an insertion path into which the holder is inserted, and a force in the direction opposite to the insertion direction acts on the conductive member. In this case, it is desirable to incorporate a locking portion that locks the conductive member and maintains the contact state between the conductive member and the conductive terminal member.

  In the above configuration, the holder has a first conductive terminal for connecting one end of the conductive member inserted into the holder to one of the two terminals, and the other end of the conductive member inserted into the holder. A second conductive terminal connected to the other of the two terminals, a fixing portion for fixing one end of the conductive member inserted into the holder, and the other of the conductive member inserted into the holder. An end portion is disposed on an insertion path to be inserted into the holder, and when a force in a direction opposite to the insertion direction acts on the conductive member, the conductive member is locked, and the conductive member and the conductive terminal It is desirable to incorporate a locking portion that maintains a contact state with the member.

  In the above configuration, the holder is a conductive rack in which the conductive member incorporates an IC tag, and a pair of insertion holes into which both end portions of the conductive member are inserted are formed. A pair of pinions connected to the terminals so as to be energized are respectively disposed in the pair of insertion holes so as to rotate only in an insertion direction in which the rack is inserted into the insertion hole, and mesh the rack with the pinion. Preferably, both end portions of the rack are inserted into the insertion holes, and the two terminals are electrically connected to each other through the pinion, the rack, and the IC tag.

  In order to achieve the above object, according to one embodiment of the present invention, an IC tag including two terminals is provided, and a plurality of mechanical members are connected to a conductive member that connects the two terminals via the IC tag. A plurality of holders to which a key is attached, a main body having a plurality of holder mounting holes to which each of the plurality of holders is mounted, and a plurality of holder mounting holes, each of which is provided, and detects an abnormality of the holder In the key management box, the holder has the IC tag arranged in parallel with the conductive member, and the key management box reads authentication data from an authentication medium to perform personal authentication, and the IC tag An electrode switching control means for causing the data reading means to alternately switch the electrodes of the two terminals, and a current flow in the opposite direction to the case where the electrode switching means flows a current through the IC tag. As described above, when the IC tag data reading unit switches the electrodes of the two terminals, the H / L voltage determination unit that detects the H level voltage and the H / L voltage determination unit detects the H level voltage. In this case, it is determined that the conductive member is not cut, and if the H / L voltage determination unit does not detect the H level voltage, an abnormality determination unit that determines that the conductive member is disconnected, and the abnormality When the determination means determines that the conductive member has been cut, the authentication data used by the authentication means for personal authentication and the IC tag data read by the IC tag data reading means by passing a current through the IC tag And storage means for associating the date and time when it is determined that the conductive member has been cut and storing it as history data.

  In order to achieve the above object, according to one embodiment of the present invention, an IC tag including two terminals is provided, and a plurality of mechanical members are connected to a conductive member that connects the two terminals via the IC tag. A plurality of holders to which a key is attached, a main body having a plurality of holder mounting holes to which each of the plurality of holders is mounted, and a plurality of holder mounting holes, each of which is provided, and detects an abnormality of the holder In the key management box, the holder includes a first IC tag and a second IC tag disposed on a circuit that branches from a downstream side of the IC tag and connects to the conductive member, The key management box includes an authentication unit that reads authentication data from an authentication medium and performs personal authentication, and the IC tag data reading unit reads the IC tag data from the first and second IC tags. If it is determined that the holder has not cut the conductive member, and the IC tag data reading means reads the IC tag from only the first IC tag, the conductive member is cut. When the abnormality determination means determines that the conductive member is cut, the authentication data used by the authentication means for the personal authentication and the IC tag data reading means are the first IC And storage means for associating the IC tag data read from the tag with the date and time when it is determined that the conductive member has been cut, and storing it as history data.

  The key management box configured as described above is openable and closable, which is held on the main body so as to be openable and closable, and which opens and closes when the authentication means has succeeded in the personal authentication. And permitting means.

  The key management box configured as described above is activated when the holder is removed from the holder and the operating power source that supplies power, and the conductive member is cut off when the holder is removed from the holder mounting hole. And a conductive member cutting detection means for holding the changed output. When the holder is returned to the holder mounting hole, the output of the conductive member cutting detection means is output to the IC tag. Inquiry, when the output of the conductive member cutting detection means is a changed output, it is detected that the conductive member is cut, and the IC tag data reading means is added to the authentication data read by the authentication means. It is desirable to have an abnormality occurrence storage means for storing the IC tag data read from the IC tag in association with the cutting of the conductive member.

  To achieve the above object, a key management box according to an aspect of the present invention includes an IC tag including two terminals, and a plurality of conductive members connecting the two terminals via the IC tag. A plurality of holders each having a mechanical key attached thereto, a main body having a plurality of holder mounting holes to which the plurality of holders are respectively mounted, and provided in each of the plurality of holder mounting holes and in contact with the two terminals In a key management box having a plurality of IC tag data reading means for reading IC tag data from the IC tag, when the holder is removed from the operating power supply for supplying power and the holder mounting hole, Or a conductive member disconnection detecting means that starts using electric power of an operating power source, changes an output when the conductive member is disconnected, and holds the changed output. Authentication means for reading the authentication data and performing personal authentication, and when the holder is returned to the holder mounting hole, the IC tag is inquired about the output of the conductive member disconnection detection means, and the output of the conductive member disconnection detection means When the output is changed, it is detected that the conductive member is cut, and the authentication data read by the authentication means includes the IC tag data read from the IC tag by the IC tag data reading means, and And an abnormality occurrence storage means for storing in association with the fact that the conductive member has been cut.

  The key management box configured as described above has output reset means for resetting the output of the conductive member disconnection detecting means to the output when the conductive member is not cut while the holder is mounted in the holder mounting hole. It is desirable to have.

  To achieve the above object, a holder according to one embodiment of the present invention has an IC tag including two terminals, and a plurality of mechanical members are connected to a conductive member that connects the two terminals via the IC tag. Operation for supplying electric power to a holder to which the two terminals are mounted so that the two terminals come into contact with the IC tag data reading means in a holder mounting hole provided in the key management box. A power supply and a conductive member that starts using the power of the operating power supply when the holder is removed from the holder mounting hole, changes the output when the conductive member is disconnected, and holds the changed output Cutting detection means.

  In the key management box of the above aspect, the opening / closing door is normally closed, and the holder mounted in the holder mounting hole of the main body is disposed inside the opening / closing door, so the conductive member cannot be cut and the key cannot be taken out. . When the authentication means reads the authentication data of the authentication medium and succeeds in personal authentication, the opening / closing of the door is permitted, and the holder can be opened to the outside by opening the door. When the open / close door is opened, for example, when the user cuts the conductive member of the holder other than the holder to which the user has access right and takes out the key, the IC tag comes into contact with the two terminals of the holder from which the conductive member has been cut The data reading means cannot read the IC tag data from the IC tag, and detects an abnormality of the holder. Therefore, the abnormality detection information storage means stores the authentication data read by the authentication means, and history of who cuts the conductive member. To leave. Therefore, according to the key management box of the above aspect, when it is found that the conductive member is cut, if the data stored in the abnormality detection information storage means is read, the user who cut the conductive member is identified, Since the responsibility can be pursued, it becomes difficult to expose the key to the risk of unauthorized removal by cutting the conductive member, and the security level can be raised.

  In the key management box of the above aspect, since the holder cannot be opened to the outside and the conductive member cannot be cut unless the opening and closing door is opened and closed, the right to access the holder that cannot be detected after the opening and closing door is closed. Investigate whether or not it is present and detect an abnormality of the holder. As described above, the key management box of the above aspect appropriately checks the holder abnormality when the abnormality occurrence rate is considered to be high, so that the holder abnormality can be detected efficiently with less energy consumption.

  The key management box of the above aspect permits opening / closing of the opening / closing door when the return authentication data read by the authentication means when the holder is returned matches the rental authentication data stored in the holder rental information storage means. Therefore, the user who lent the holder must return the rented holder, and the location of the responsibility in case the key of the lent holder is lost is clear. Therefore, according to the key management box of the above aspect, the user carefully manages the lent holder, and it is possible to prevent the loss of the key due to the renting of the holder.

  In the key management box of the above aspect, the user who succeeds in personal authentication unlocks the holder locking means of the holder mounting hole corresponding to the holder to which the user has access right, and the right of access is granted to the user who succeeds in personal authentication. Since the holder lock means of the holder mounting hole corresponding to the holder that is not unlocked is not released, for example, a person who does not have access to the lent holder cannot return the holder to the key management box. Therefore, according to the key management box of the above aspect, the person who borrows the holder returns the holder, and the responsibility for the trouble related to the rented holder is clear, so that the key can be managed safely.

  The key management box of the above aspect warns of an abnormality when the IC tag data reading unit cannot read the IC tag data of the holder without access right. Therefore, for example, when the IC tag data reading means cannot read the IC tag data due to poor contact between the two terminals and the IC tag data reading means, the user cuts the conductive member of the holder without access right. In order to avoid the pursuit of responsibility, we take measures such as eliminating poor contact. Therefore, according to the key management box of the above aspect, the contact failure between the IC tag data reading means and the two terminals is not left, and the accuracy of detecting the holder abnormality can be maintained.

  In the key management box of the above aspect, both ends of the conductive member through which a plurality of keys are inserted are inserted into the holder and locked to the locking portion, and the key is attached to the holder. When the conductive member is pulled in the direction opposite to the insertion direction into the holder in order to remove the key from the holder, the locking portion is broken. Therefore, according to the key management box of the above aspect, if an improper operation is performed on the holder, the trace remains on the holder, and the abnormality of the holder can be detected at an early stage.

  In the key management box of the above aspect, one of the conductive members is fixed by the fixing portion, and the conductive member is inserted into the plurality of keys, and the other of the conductive members is inserted into the holder to be locked to the locking portion. A plurality of keys are attached to the holder. When the conductive member is pulled in the direction opposite to the insertion direction into the holder in order to remove the key from the holder, the locking portion is broken. Therefore, according to the key management box of the above aspect, if an improper operation is performed on the holder, the trace remains on the holder, and the abnormality of the holder can be detected at an early stage.

  In the key management box of the above aspect, the plurality of keys are attached to the holder by inserting both end portions of the rack inserted through the plurality of keys into the pair of insertion holes of the holder and engaging with the pair of pinions. When the rack to which the IC tag is attached is removed from the holder or the rack is cut, the first and second terminals are not conducted through the rack, and the IC tag data cannot be read. Also, since the pair of pinions rotate only in the rack insertion direction, pulling the rack in the reverse direction in the insertion direction to remove the key from the rack destroys the rack and the pair of pinions. Therefore, according to the key management box of the above aspect, when fraud is applied to the holder, the trace remains on the holder, and the abnormality of the holder can be detected at an early stage. Moreover, since the key management box of the said aspect can reuse a holder if a rack is replaced | exchanged, it can aim at cost reduction by making a holder common.

  In the key management box of the above aspect, the IC tag data reading means alternately switches the electrodes of the two terminals of the holder. In the key management box, when a holder whose conductive member is not cut is returned, the IC tag data reading means switches the IC tag data from the IC tag while switching the electrodes of the two terminals of the holder so that a current flows through the IC tag. On the other hand, the H / L voltage determination means detects the H level voltage while the electrodes of the two terminals are switched so that the current flows in the opposite direction to the case where the IC tag data reading means passes a current through the IC tag. In this case, the key management box determines that the conductive member of the returned holder is not cut. On the other hand, when the holder with the conductive member cut is returned, the key management box allows the IC tag data reading means to switch the IC tag while switching the electrodes of the two terminals of the holder so that a current flows through the IC tag. While the IC tag data is read from the IC tag data, the H / L voltage determination means sets the H level voltage while switching the electrodes of the two terminals so that the current flows in the opposite direction to the case where the IC tag data reading means passes the current to the IC tag. Not detected. In this case, the key management box determines that the conductive member of the returned holder has been cut, and the authentication data used for personal authentication by the authentication means and the IC tag read by the IC tag data reading means by passing a current through the IC tag. The tag data and the date and time when it is determined that the conductive member has been cut are associated and stored as history data. In such a key management box, by referring to the history data, it is possible to identify the holder from which the conductive member was cut, and to identify when the holder was returned by, so the security level is improved.

  In the key management box of the above aspect, when the holder whose conductive member is not cut is returned, the IC tag data reading means reads the IC tag data from the first and second IC tags. In this case, the key management box determines that the returned holder has not cut the conductive member. On the other hand, in the key management box, when the holder with the conductive member cut is returned, the IC tag data reading means reads the IC tag data only from the first IC tag and does not read the IC tag data from the second IC tag. In this case, the key management box determines that the returned holder has cut the conductive member, and the authentication data used for personal authentication by the authentication means and the IC tag read by the IC tag data reading means from the first IC tag. The data is associated with the date and time when it is determined that the conductive member has been cut, and stored as history data. In such a key management box, by referring to the history data, it is possible to identify the holder from which the conductive member was cut, and to identify when the holder was returned by, so the security level is improved.

  The key management box having the above configuration permits the opening / closing of the door when the personal authentication is successful, and exposes the holder mounted in the holder mounting hole to the outside, so that the conductive member of the holder without personal authentication Without being cut, it is possible to clarify the responsibility of the conductive member being cut.

  In the key management box and holder of the above aspect, when the holder is removed from the holder mounting hole of the key management box, the conductive member disconnection detection means is activated using the power of the operation power supply. When the conductive member is cut, the holder taken out from the key management box changes the output, and holds the changed output. The changed output is retained even after the cut conductive member is connected to the cut portion. Therefore, when the holder is returned to the key management box, when the key management box inquires the IC tag about the output of the conductive member disconnection detection means, the IC tag sends the changed output of the conductive member disconnection detection means to the key management box. Inform. In this case, the key management box detects that the conductive member has been cut, and the IC tag data read from the IC tag by the IC tag data reading unit is added to the authentication data read by the authentication unit. Are stored in association with each other, and a history of who cut the conductive member of which holder is left. As described above, according to the key management box and holder of the above aspect, it is possible to detect that the conductive member has been cut with respect to the holder removed from the key management box, so that the security level can be raised.

  Further, the key management box configured as described above resets the output of the conductive member cutting detection means to the output when the conductive member is not cut while the holder is mounted in the holder mounting hole. Therefore, if the key management box detects the disconnection of the conductive member for the holder returned to the holder mounting hole, and resets the output of the conductive member disconnection detecting means to the output when the conductive member is not cut, the key management box Even without replacing, the cutting of the conductive member can be continuously monitored.

It is a schematic block diagram of the key management box which concerns on 1st Embodiment of this invention. It is a side view of a holder with a key. It is a schematic internal block diagram of a holder with a key. It is a block diagram of the control of the key management box. It is a flowchart of a control program. It is a figure which shows an example of an authentication failure warning screen. It is a figure which shows an example of an abnormality warning screen. It is a figure which shows the control structure of the key management box which concerns on 2nd Embodiment of this invention. It is a flowchart of a control program. It is a block diagram of the configuration of the control of the key management box according to the third embodiment of the present invention. It is a flowchart of a control program. It is a figure which concerns on 4th Embodiment of this invention and shows schematic structure of a holder. FIG. 10 is an external perspective view of a holder according to a fifth embodiment of the present invention. It is a figure which shows schematic structure of a holder, Comprising: The state before mounting | wearing a rack with a holder is shown. It is a figure which concerns on 6th Embodiment of this invention and shows schematic structure of a holder. It is a figure which concerns on 7th Embodiment of this invention and shows schematic structure of a holder. It is a figure which concerns on 8th Embodiment of this invention and shows schematic structure of a holder. It is a figure which shows schematic structure of an IC tag data reading means. It is a figure which concerns on 9th Embodiment of this invention and shows schematic structure of a holder. It is a block diagram of the electric circuit concerning the 10th Embodiment of this invention and was provided in the holder. It is a figure explaining the charging operation which the key management box charges the capacitor | condenser of a holder. It is a figure explaining the data reading operation which a key management box reads IC tag data from the IC tag of a holder. It is a figure explaining operation | movement of the flip-flop circuit in the holder taken out from the key management box, Comprising: The normal time when the electrically-conductive member is not cut | disconnected is shown. It is a figure explaining operation | movement of the flip-flop circuit in the holder taken out from the key management box, Comprising: The time of abnormality when the electrically-conductive member was cut | disconnected is shown. It is a figure explaining operation | movement which a key management box reads data from the IC tag of a holder, when a holder is returned to a key management box after repairing the cut | disconnected electrically-conductive member. It is a figure explaining the reset operation | movement which resets a flip-flop circuit. It is a figure which shows the 1st modification of a holder. It is a figure which shows the 2nd modification of a holder.

  Hereinafter, an embodiment of a key management box and a holder used for the key management box according to the present invention will be described with reference to the drawings.

(First embodiment)
<Schematic configuration of key management box>
FIG. 1 is a schematic configuration diagram of a key management box 30 according to the first embodiment of the present invention, and shows a state in which an opening / closing door 31 is opened.
In the key management box 30, an open / close door 31 is attached to the main body 3, and the open / close door 31 is normally closed and locked to the door lock portion 27. Opening / closing of the opening / closing door 31 is detected by the opening / closing detection means 36. Inside the opening / closing door 31 of the key management box 30, a holder hole unit 38 (from 38A to 38J) for holding ten holders 2 (see FIG. 2) is attached. An ID card reading unit 32, a numeric keypad operation unit 33, a liquid crystal display unit 34, a rental button 28, and a return button 29 are attached to the right surface of the open / close door 31 of the key management box 30. The holder hole unit 38 has a holder mounting hole 35 in which the holder 2 is mounted, an LED 43, and a name plate 37. In the key management box 30, the holder 2 (2A to 2J) determined for each holder hole unit 38 (38A to 38J) is inserted and removed, and the name plate 37 and the holder 2 are described to show the correspondence ( For example, description of the storage of the data room 1, the storage of the data room 2, etc., and the identification numbers 1, 2, 3,.

<Configuration of holder with key>
Next, the keyed holder 2 will be described. FIG. 2 shows a side view of the keyed holder 2, and FIG. 3 shows a schematic internal configuration diagram of the keyed holder 2.
In the holder 2, a plurality of mechanical keys 1 are attached to a conductive member 16 exposed to the outside of the case 15. The key 1 is inserted into the lock of the storage, and is used for unlocking the lock on condition that the shapes match, and no IC tag is attached. Both ends of the conductive member 16 are locked to the case 15 so that they cannot be removed when the holder is manufactured, and the key 1 cannot be removed unless the conductive member 16 is cut.

  As shown in FIG. 3, the case 15 is formed of an insulating material such as resin, and the IC tag 10 and the first to fourth terminals 11 to 14 are integrally provided therein by insert molding. Inside the case 15, there is provided a circuit for electrically connecting the first terminal 11 to the second terminal 12 through the IC tag 10, the third terminal 13, the conductive member 16, and the fourth terminal 14. The IC tag 10 stores a unique manufacturing number as IC tag data, and the IC tag data is used to identify the holder 2 from other holders 2. The first and second terminals (an example of two terminals) 11 and 12 are placed outside the case 15 so as to contact the IC tag data reading means 42 (see FIG. 4) provided in the holder mounting hole 35. Exposed. The third and fourth terminals (an example of the first and second conductive terminals) 13 and 14 are exposed in the accommodation space portions (an example of the locking portions) 15a and 15b of the case 15, and are placed in the accommodation space portions 15a and 15b. The both ends 16a and 16b of the inserted conductive member 16 are brought into contact with each other.

  The housing space portions 15a and 15b of the case 15 communicate with the outside through openings 15c and 15d provided smaller than the housing space portions 15a and 15b. The conductive member 16 is composed of a predetermined length of conductive metal plate, and is insulated by attaching an insulating cover 16c to the outer peripheral surface except for both end portions 16a and 16b. The conductive member 16 is bent in a U shape with both end portions 16a and 16b folded back, and the both end portions 16a and 16b are inserted into the accommodation space portions 15a and 15b from the openings 15c and 15d. Both end portions 16a and 16b are arranged in a state in which the portions bent by their own elastic force are expanded in the accommodating space portions 15a and 15b and are stretched to the accommodating space portions 15a and 15b. Therefore, even if both ends 16a and 16b are hooked on the inner walls of the accommodation spaces 15a and 15b and the both ends 16a and 16b are pulled in the direction opposite to the insertion direction, the conductive member 16 does not come out of the openings 15c and 15d. As a result, the holder 2 cannot remove the key 1 unless the case 15 is destroyed or the conductive member 16 is cut. Both end portions 16a and 16b are pressed against the third and fourth terminals 13 and 14 by their own elastic force and are in contact with each other so as to be energized.

<Control configuration of key management box>
Next, the controller 44 of the key management box 30 will be described. FIG. 4 shows a control block diagram of the key management box 30. The controller 44 (an example of an authentication unit, an opening / closing permission unit, a holder presence / absence detection unit, an abnormality detection information storage unit, a holder rental information storage unit, and an abnormality warning unit) includes a CPU 45, a ROM 46, and a memory 51. The ROM 46 includes a control program 50 and an access right storage unit 48. The access right refers to the right for the user to use the holder 2. The access right storage unit 48 stores the access right for each user by storing one or more IC tag data in association with the authentication data. Further, the memory 51 accumulates and stores the usage history of the key management box 30 (opening / closing time of the door 31, lender, returner, lent rental holder, returned return holder) as usage history data. When an abnormality of the storage unit 52 and the holder 2 is detected, abnormality detection information (an abnormality occurrence time when the conductive member 16 is cut, a person who cuts the conductive member 16, an abnormality occurrence holder where the conductive member is cut) is accumulated. And an abnormality detection information storage unit 53 for storing the information.

  When the holder 2 is attached to the controller 44, IC tag data reading means 42 (42A to 42J) for reading IC tag data stored in the IC tag 10 built in the holder 2 can be taken out. LED43 (43A-43J) for notifying the holder 2 is connected. The controller 44 is connected to an ID card reading unit 32, a numeric keypad operation unit 33, a liquid crystal display unit 34, an opening / closing detection unit 36, a door lock unit 27, a rental button 28, and a return button 29.

<Description of operation>
Next, the operation of the key management box 30 will be described.
In the key management box 30, the open / close door 31 is normally closed and locked to the door lock portion 27, and the holder 2 (2 </ b> A to 2 </ b> J) attached to the holder hole unit 38 (38 </ b> A to 38 </ b> J) is disposed inside the open / close door 31. It is arranged so that the conductive member 16 is not cut. The holder 2 (2A to 2J) has a holder mounting hole 35 so that the first and second terminals 11 (11A to 11J) and 12 (12A to 12J) come into contact with the IC tag data reading means 42 (42A to 42J), respectively. (35A to 35J). In the key management box 30, when the ID card reading unit 32 reads data from the user's ID card (an example of an authentication medium), the controller 44 activates the control program 50 and monitors the holder 2 for abnormalities. Usage history data is accumulated and stored, and lending and returning of key 1 is managed.

  In the following, when the user A takes out the key 1 <key lending>, when the user A properly returns the key 1, <return key>, and the holder 2 to which the user has no access right When illegally taking out <unauthorized key removal>, when the user A cuts the conductive member 16 and illegally takes out the key 1 <unauthorized key removal by cutting the conductive member>, the user A opens the door 31 The operation of the key management box 30 will be described by taking, as an example, a case where data reading failure of the IC tag 10 occurs when opening and closing, <data reading failure occurrence>. FIG. 5 shows a flowchart of the control program 50.

<Lending of keys>
For example, when the user wants to use materials stored in a plurality of storages, he / she goes to the key management box 30 with the ID card, holds the ID card over the ID card reading unit 32, and the lending button 28. Press.

  The controller 44 activates the control program 50, compares the authentication data read by the ID card reading unit 32 with the access right stored in the access right storage unit 48, and performs personal authentication (S1). If the authentication data does not match the authentication data stored in the access right storage unit 48 and the personal authentication fails (S1: No), the controller 44, for example, “Authentication failed” as shown in FIG. An authentication failure screen saying “Please try again.” Is displayed on the liquid crystal display unit 34, and an authentication failure warning is issued (S15). Then, the process ends.

  On the other hand, if the authentication data matches the authentication data stored in the access right storage unit 48 and the personal authentication is successful (S1: Yes), the controller 44 determines whether the lending button 28 or the return button 29 has been pressed. It is determined whether or not (S2). Since the user A is pushing the lending button 28 (S2: lending button is pressed), the controller 44 reads the IC tag data stored in association with the authentication data of the user A from the access right storage unit 48, and the user The holder 2 has an access right and the LED 43 is turned on. For example, when the user A has access rights for the holders 2A and 2C, the controller 44 lights the LEDs 43A and 43C of the holder hole units 38A and 38C for storing the holders 2A and 2C (S3). Then, the door lock unit 27 is unlocked to permit the door 31 to be opened and closed (S4).

  When the user A opens the door 31, the LEDs 43 </ b> A and 43 </ b> C are lit, so that the location of the holders 2 </ b> A and 2 </ b> C that can be taken out is immediately known. The user A pulls out the holder 2A attached with the key 1 corresponding to the lock of the storage to be opened and closed from the holder hole unit 38A, and closes the opening / closing door 31. When the open / close detection means 36 detects the closed state of the open / close door 31, the controller 44 locks the open / close door 31 to the door lock portion 27 to restrict the open / close door 31 (S5: Yes, S6: Yes, S7). . Accordingly, no one can take out the holders 2B to 2J from the key management box 30.

  Then, the controller 44 detects the presence or absence of the holder 2 in the key management box 30 (S8). Specifically, the controller 44 outputs a command for reading the IC tag data of the IC tag 10 to the IC tag data reading means 42 (42A to 42J). The IC tag data reading means 42 (42A to 42J) and the first and second terminals 11 and 12 of the holder 2 are in normal contact, and the conductive member 16 normally connects the third and fourth terminals 13 and 14. In this case, the IC tag data reading means 42 (42A to 42J) can pass the current to the IC tag 10 (10A to 10J) and read the IC tag data. Therefore, when the user A takes out the holder 2A from the key management box 30 as described above, the IC tag data reading means 42B to 42J reads the IC tag data from the IC tags 10B to 10J of the holders 2B to 2J. Since the IC tag data reading means 42A cannot read the IC tag data from the IC tag 10A of the holder 2A, the controller 44 has the holders 2B to 2J in the key management box 30 and the holder 2A is the key management box. It is determined that it is not within 30.

  Then, the controller 44 reads from the use history data stored in the history storage unit 52 the latest holder presence / absence detection data that has detected the presence / absence of the holder 2 before the user back opens the door 31. It is determined whether or not the holder presence / absence detection data matches the current holder presence / absence detection data acquired in the holder presence / absence detection process of S8 (S9). Thereby, it can be recognized which holder 2 has been taken out. For example, when the user A takes out the holder 2A from the state in which the holders 2A to 2J are attached to all the holder hole units 38A to 38J, the controller 44 reads the IC tag data of the holders 2A to 2J from the latest holder. The IC tag data of the holders 2B to 2J is recognized as the current holder presence / absence detection data. In this case, since the IC tag data of the holder 2A cannot be detected after the open / close door 31 is closed, the past holder presence / absence detection data does not match the current holder presence / absence detection data, and it can be seen that the holder 2A has been taken out. (S9: No). Therefore, the controller 44 compares the IC tag data of the taken-out holder 2A with the access right storage unit 48, and determines whether or not the taken-out holder 2A has the access right for the user A ( S10). As described above, the user A has access rights for the holders 2A and 2C. Therefore, the IC tag data of the holder 2A taken out by the user A is included in the IC tag data of the holders 2A and 2C stored in the access right storage unit 48 in association with the authentication data of the user A. The controller 44 It is determined that the holder 2A that can no longer be detected is a holder that has the access right of the user A (S10: Yes). In this case, the controller 44 uses the ID card reading unit 32 to read the authentication data (lending time authentication data) of the opening / closing time of the open / close door 31 and the IC tag data (lending time IC tag data) of the holder 2A that can no longer be detected. Is stored in the history storage unit 52, and when the holder 2A is lent to the user A is left as usage history data (S14). And the lending process of the holder 2 is complete | finished.

  The user A holds the holder 2A, moves to a plurality of storages, sequentially inserts the keys 1 attached to the holders 2A into the locks of the storage, opens and closes them, and takes out desired materials. Since the key 1 is an existing mechanical key, an existing one is used as a lock of the storage. Therefore, when the key management box 30 is introduced and the key 1 is managed, there is no need to replace the existing lock and the key 1, and the security of the key 1 can be increased at a low cost.

<Return key>
When the user A takes out the desired material, he goes to the key management box 30 with the ID card and the holder 2 </ b> A, and returns the holder 2 </ b> A to the key management box 30. Here, the key management box 30 recognizes from the usage history data in the history storage unit 52 when the holder 2A has been lent to the user. The user A pursues responsibility when materials are illegally taken out from the storage while the holder 2A is being lent. Therefore, when the user takes out the desired materials from the storage, the holder 2A is immediately returned to the key management box 30. go to.

  When the user A holds the ID card over the ID card reading unit 32 and presses the return button 29 and succeeds in personal authentication (S1: Yes, S2: press the return button), the controller 44 uses the history of the history storage unit 52. With reference to the data, it is confirmed whether or not the holder 2A is lent to the user who has been personally authenticated (S16). Here, since the user A takes out the holder 2A, the history storage unit 52 stores the authentication data at the time of rental of the user A, the IC tag data at the time of rental of the holder 2A, and the lending time for lending the holder 2A ( The opening / closing time of the door 31 is stored in association with each other. Therefore, since the authentication data (authentication data at the time of return) read by the ID card reading unit 32 at the time of return coincides with the authentication data at the time of lending in the history storage unit 52, the controller 44 lends the holder to the user back. Judgment is made (S16: Yes).

  Then, the controller 44 turns on the LEDs 43 provided in the holder hole units 38A and 38C corresponding to the holders 2A and 2C to which the user A has access right so that the place where the user can return can be visually recognized (S17).

  When the lock of the door lock portion 27 is released (S4), the user back opens the open / close door 31, the LED 43A is lit, and the holder mounting hole of the holder hole unit 38A in which the holder 2 is not attached. The holder 2A is inserted into 35A, and the open / close door 31 is closed. When the open / close detection means 36 detects the closed state of the open / close door 31 (S5: Yes, S6: Yes), the controller 44 locks the door lock portion 27 so that the holder 2 cannot be touched (S7). . Then, as in the case of lending the holder 2 described above, the presence / absence of the holder 2 is detected (S8), and the holder is detected before and after the door is opened / closed depending on whether the latest holder presence / absence detection data matches the current holder presence / absence detection data. It is determined whether or not 2 are the same (S9). When the user A returns the holder 2A, since the IC tag data of the holder 2A is increased before and after the door is opened and closed, the latest holder presence / absence detection data does not match the current holder presence / absence detection data (S9: No). Therefore, the controller 44 collates the increased IC tag data of the holder 2A with the access right of the user A stored in the access right storage unit 48, and the holder 2A is a holder for which the user A has the access right. It is determined whether or not there is (S10). Since the user A has the right to access the holders 2A and 2C (S10: Yes), the controller 44 uses the opening / closing time of the door 31 and the IC tag data of the returned holder 2A (IC tag data at the time of return). It is stored in the history storage unit 52 in association with the IC tag data at the time of return, and the time when the user A returns the holder 2A is left in the history (S14).

  By the way, for example, when the user A lent the lent holder 2A to the user B who has the access right for the holder 2A, the usage history data lent the holder 2A to the user B is stored in the history storage unit 52. It does not remain. Therefore, even if the user B holds the ID card over the ID card reading unit 32 and presses the return button 29, the user cannot open / close the door 31 and cannot return the holder 2A to the key management box 30 (S16: No). . Therefore, the user A must also receive the lent holder 2A from the user B and return it to the key management box 30. Moreover, since it is clear from the usage history data in the history storage unit 52 that the holder 2A is lent to the user A, the material is illegally taken out from the storage while the holder 2A is lent to the user B. And the user is pursued responsibility. Therefore, the user A supervises that the user B uses the key 1 of the holder 2A in good quality, and further, the user 2 will not lend the holder 2A taken out to an unreliable partner.

  Further, for example, when a user who has access rights to the holder 2C has taken the holder 2C out of the key management box 30 and lent the holder 2A again from the user's back, the user has locked the holder 2C as a key. When returning to the management box 30, the holder 2A can be returned together to the key management box 30 (S1: Yes, S16: Press return button, S17, S5: Yes, S6: Yes, S7). In this case, the controller 40 recognizes that the user Ding has returned the holder 2A without the access right, and stores it in the abnormality information storage unit 53 and the history storage unit 52 (S8, S9: No, S10: No, S11). , S12: No, S13, S14). Thus, for example, after lending the holder 2A to the user's back and before the holder 2A is returned by the user, the key 1 of the holder 2A is lost or the key 1 corresponding to the key 1 of the holder 2A is attached. When the material is illegally taken out from the storage, it is determined from the data stored in the abnormality information storage unit 53 or the history storage unit 52 that the user A or the user has used the holder 2A, It is possible to pursue responsibility for the loss of the key 1 and illegal take-out of materials. For this reason, the user's back and the user's clerk are cautious about renting the holder 2 and the security of the key 1 is improved.

<Unauthorized key removal>
Next, a case where the user A illegally takes out the key 1 attached to the holder 2J without the access right will be described.
Since the user A has the right to access the holders 2A and 2C, the door 31 can be opened and closed by pressing the lending button 28 while holding the ID card over the ID card reading unit 32 (S1: Yes, S2: Lending button pressed). , S4). Since the holders 2A to 2J are only inserted into the holder mounting holes 35A to 35J, the user can remove the holder 2J without access right from the holder mounting hole 35J and take it out.

  When the user's back illegally takes out the holder 2J and closes the open / close door 31 (S5: Yes, S6: Yes), the door lock portion 27 is locked (S7). When the holder 2J is taken out, the IC tag data reading means 42J of the holder hole unit 38J cannot read the IC tag data from the IC tag 10J. Therefore, the controller 44 detects that there is no holder 2J (S8). Then, since the IC tag data of the holder 2J decreases before and after the opening / closing door 31 is opened and closed, the latest holder presence / absence detection data does not match the current holder presence / absence detection data (S9; No). Moreover, the IC tag data of the holder 2J reduced before and after the door opening / closing does not match the IC tag data of the holders 2A and 2C to which the user A has access right, and the controller 44 is accessed by the holder 2J and the user A is accessed. Recognize that it does not have the right (S10: No). Therefore, for example, as shown in FIG. 7, the controller 44 displays an abnormality warning screen on the liquid crystal display unit 34 as “There is an abnormality in the holder 2J. Check the storage state of the holder 2J.” A warning alarm is issued to warn the user of the abnormality (S11).

  When the user back ignores the abnormality warning and leaves with the holder 2J, the abnormality is not resolved (S12: No). Therefore, the IC tag data of the holder 2J that the IC tag data reading means 42 can no longer read the IC tag data, together with the opening / closing time of the opening / closing door 31, is used as the authentication data at the time of lending. In association with each other, the abnormality detection information storage unit 53 stores them. Thereby, from the abnormality detection information in the abnormality detection information storage unit 53, it becomes possible to specify when the user A has illegally taken out the holder 2J without the access right.

  By the way, since both ends 16a and 16b of the conductive member 16J are locked to the case 15J so that they cannot be removed, the holder 2J can be removed from the holder 2J unless the case 15 is broken or the conductive member 16 is cut. I can't remove it. For example, when the user A pulls the conductive member 16J of the holder 2J taken out illegally to remove it from the case 15J and removes the key 1 from the holder 2J, the case 15 is deformed or destroyed. Therefore, when the user A reattaches the conducting member 16J to the case 15J so that the third and fourth terminals 13J and 14J are conducted, and the holder 2J is returned to the holder hole unit 38J of the key management box 30, the IC Even if the tag data reading means 42J reads the IC tag data from the IC tag 10J, it can be seen from the state of deformation or destruction of the case 15 that the holder 2J has been cheated. The controller 44 stores the usage history of the holder 2 in the history storage unit 52 every time the door 31 is opened and closed (S14). Therefore, the administrator who notices an abnormality due to deformation or breakage of the holder 2J identifies the user who took out the holder 2J without the access right and checks the responsibility by checking the use history data in the history storage unit 52. Can do.

<Unauthorized key removal by cutting conductive members>
If the user A cuts the conductive member 16J with the holder 2J attached to the holder hole unit 38J in order to illegally take out the key 1 of the holder 2J without access right, no current flows through the IC tag 10J of the holder 2J. Therefore, when the controller 44 detects the presence or absence of the holder 2 after opening and closing the door, the IC tag data reading means 42J does not read the data of the IC tag 10J. Therefore, the controller 44 detects that there is no holder 2J (S8). Then, since the IC tag data of the holder 2J decreases before and after the opening / closing door 31 is opened and closed, the latest holder presence / absence detection data does not match the current holder presence / absence detection data (S9; No). Moreover, the IC tag data of the holder 2J reduced before and after the door opening / closing does not match the IC tag data of the holders 2A and 2C to which the user A has access right, and the controller 44 is accessed by the holder 2J and the user A is accessed. Recognize that it does not have the right (S10: No). Therefore, for example, as shown in FIG. 7, the controller 44 displays an abnormality warning screen on the liquid crystal display unit 34 as “There is an abnormality in the holder 2J. Check the storage state of the holder 2J.” A warning alarm is issued to warn the user of the abnormality (S11). Since the cut conductive member 16J cannot be returned to its original state, the abnormality is not eliminated (S12: No). Therefore, the IC tag data of the holder 2J that the IC tag data reading means 42 can no longer read the IC tag data, together with the opening / closing time of the opening / closing door 31, is used as the authentication data at the time of lending. In association with each other, the abnormality detection information storage unit 53 stores them. Thereby, from the abnormality detection information of the abnormality detection information storage part 53, it becomes possible to specify when the user A cut the conductive member 16J of the holder 2J. Further, the controller 44 stores the opening / closing time of the opening / closing door 31 and the IC tag data of the holder 2J that the IC tag data reading means 42 can no longer read the IC tag data in association with the rental authentication data (S14). As a result, the abnormality detection information remains in the abnormality detection information storage unit 53 and the history storage unit 52 in a double manner, and the security level is improved.

  In addition, the user A can also perform the above fraud when returning the holder 2A taken out properly (S1: Yes, S2: Press the return button, S16: Yes, S17, S4, S5: Yes, S6: Yes, S7). Also in this case, by executing the processing of S9 to S14 as in the case of renting out the holder, it is possible to identify from the usage history data that the user has acted on the holder 2J and pursue the responsibility. .

<Data reading failure occurred>
Next, a case where contact failure occurs when the user back takes out the holder 2 will be described.
For example, when an oxide film is generated on the first to fourth terminals 11J to 14J of the IC tag data reading means 42J or the IC tag 10J, and both ends 16a and 16b of the conductive member 16J, the IC tag data reading means 42J and the holder 2J The first and second terminals 11J and 12J or / and the third and fourth terminals 13J and 14J and the both end portions 16a and 16b of the conductive member 16J cause poor contact.

  When the user A takes out the holder 2A with the access right and the contact failure occurs in the holder 2J without the access right, the IC tag data reading means 42J cannot read the IC tag data from the IC tag 10J. In this case, the controller 44 detects an abnormality of the holder 2J and issues an abnormality warning (S8, S9: No, S10: No, S11). If the contact failure is left unattended, the user's back is erroneously recognized as having cut the conductive member 16J of the holder 2J. Therefore, the user A holds the ID card over the ID card reading unit 32, presses the return button 29, reopens the opening / closing door 31, and tries to eliminate contact failure by rattling the holder 2J in the holder mounting hole 35J. . When the contact failure is resolved (S12: Yes), the controller 44 deletes the abnormality warning screen, stops the warning alarm, and cancels the warning (S18). Then, the time when the user back opens and closes the door 31 and the return of the holder 2J are stored in the history storage unit 52 in association with the return authentication data. Thereby, it can grasp | ascertain from the usage log data of the log | history memory | storage part 52 that the abnormal state of the holder 2J was eliminated by the user A, and the user A escapes the pursuit of responsibility.

  If the contact failure cannot be resolved, the controller 44 continues to issue an abnormality warning. Therefore, the user A contacts the administrator of the key management box 30 to notify the abnormality of the holder 2J in order to avoid pursuing the responsibility. As a result, in the key management box 30, the contact failure of the holder 2J is resolved at an early stage, and the frequency of erroneously detecting the abnormality of the holder 2 is reduced.

<Others>
If the user back does not lend or return the holder 2 even if the user opens or closes the door 31, and the conductive member 16 is not cut, the latest holder presence / absence detection data and the current holder The presence / absence detection data matches (S9: Yes). In this case, the opening / closing time of the door 31 is stored in the history storage unit 52 in association with the authentication data used for the personal authentication of the user A (S14). Thereby, it becomes possible to confirm later from the usage history data that the user A has opened and closed the door 31 and that no abnormality has occurred when the door 31 is opened and closed.

<Effect>
As described above, the key management box 30 normally has the opening / closing door 31 closed, and the holder 2 mounted in the holder mounting hole 35 provided in the main body 3 is disposed inside the opening / closing door 31. The key 1 cannot be taken out by cutting the conductive member 16. When the ID card reading unit 32 reads the ID card authentication data and succeeds in personal authentication, the opening / closing of the door 31 is permitted, and the holder 2 can be opened to the outside by opening the door 31. When the open / close door 31 is opened, for example, when the user cuts the conductive member 16 of the holder 2 other than the holder 2 to which the user has access right and takes out the key 1, the first of the holder 2 from which the conductive member 16 has been cut is taken. Also, the IC tag data reading means 42 in contact with the 211 and 12 cannot read the IC tag data from the IC tag 10, and the abnormality of the holder 2 is detected. Therefore, the controller 44 stores the authentication data read by the IC tag data reading means 42 in the abnormality detection information storage unit 53 and leaves in the history who has cut the conductive member 16. Therefore, according to the key management box 30, if it is found that the conductive member 16 is cut, the user who cut the conductive member 16 can be identified by reading the data stored in the abnormality detection information storage unit 53. Since the responsibility can be pursued, it is difficult to expose the key 1 to the risk that the conductive member 16 is cut off and illegally taken out, and the security level can be increased.

  Since the key management box 30 cannot open the holder 2 to the outside and cut the conductive member 16 unless the door 31 is opened and closed, the holder 2 that cannot be detected after the door 31 is closed. Whether the holder 2 has an access right or not, and an abnormality of the holder 2 is detected. As described above, the key management box 30 appropriately checks the abnormality of the holder when it is considered that the abnormality occurrence rate is high, so that the abnormality of the holder 2 can be efficiently detected with less energy consumption.

  The key management box 30 opens and closes the opening / closing door 31 when the return authentication data read by the ID card reading unit 32 when the holder 2 is returned matches the rental authentication data stored in the history storage unit 52. Therefore, the user who lent the holder 2 always returns the lent holder 2, and the location of the responsibility in the case where the key 1 of the lent holder 2 is lost is clear. Therefore, according to the key management box 30, the user carefully manages the lent holder 2, and the loss of the key 1 due to the rent of the holder 2 can be prevented.

  The key management box 30 warns of an abnormality when the IC tag data reading means 42 cannot read the IC tag data of the holder 2 that does not have the access right. Therefore, for example, when the IC tag data reading unit 42 cannot read the IC tag data due to poor contact between the two terminals 11 and 12 and the IC tag data reading unit 42, the user has no access right. In order to avoid the pursuit of responsibility for cutting the conductive member 16, the contact failure is eliminated. Therefore, according to the key management box 30, the contact failure between the IC tag data reading means 42 and the two terminals 11 and 12 is not left, and the accuracy of detecting the abnormality of the holder 2 can be maintained.

  In the key management box 30, the conductive member 16 through which the plurality of keys 1 are inserted is inserted into the holder 2 so as to come into contact with the third and fourth terminals 13 and 14, and hooked on the inner walls of the housing openings 15 a and 15 b. Is locked. If the conductive member 16 is forcibly pulled in the direction opposite to the direction of insertion into the holder 2 in order to remove the key 1 from the holder 2, the case 15 is destroyed. Therefore, according to the key management box 30, if a fraud is applied to the holder 2, the trace remains in the holder 2, and an abnormality of the holder 2 can be detected at an early stage.

(Second Embodiment)
Subsequently, a second embodiment of the present invention will be described. A control configuration of the key management box 30 is shown in FIG.
The key management box 30 of the second embodiment is provided with holder locking means 41 (41A to 41J) in the holder mounting holes 35 (35A to 35J) of the holder hole unit 38 (38A to 38J). ˜2J) cannot be removed from the holder mounting hole 35 (35A to 35J). The controller 55 (an example of an authentication unit, an opening / closing permission unit, a holder presence / absence detection unit, a lock release unit, an abnormality detection information storage unit, a holder rental information storage unit, and an abnormality warning unit) includes a holder lock unit 41 (41A to 41J). Electrically connected. The ROM 46 stores a control program 56 for managing the key 1 including the lock operation and unlock operation of the holder lock means 41.

A flowchart of the control program 56 is shown in FIG.
When the key management box 30 reads the authentication data from the ID card, the key management box 30 activates the control program 56. For example, when the user A holds the ID card over the ID card reading unit 32 and presses the lending button 28, the controller 55 performs personal authentication based on the authentication data read from the ID card. When the controller 55 succeeds in personal authentication, the holder hole unit 38A for storing the holder 2 to which the user A has access rights (here, the user A has access rights for the holders 2A and 2C). The LEDs 43A and 43C of 38C are turned on, and the lock by the holder lock means 41A and 41C is released so that the holders 2A and 2C can be taken out (S1: Yes, S2: Lending button pressed, S21). Therefore, the user back opens the opening / closing door 31, removes the desired holder 2A from the holder mounting hole 35A, and closes the opening / closing door 31. When the controller 55 detects that the open / close door 31 is closed, the controller 55 locks the door lock portion 27 and all the holder lock means 41A to 41J. Thereby, even if the opening / closing door 31 is pry open, the holder 2 cannot be pulled out from the holder mounting hole 35 and taken out. Since the processing after S8 is the same as the <key lending> described in the first embodiment, the description thereof is omitted.

  The user A holds the ID card over the ID card reading unit 32 and presses the return button 29 when returning the holder 2A after taking out the desired material from the storage using the taken out holder 2A. When the controller 55 succeeds in personal authentication based on the authentication data of the ID card, the controller 55 identifies the holder 2A lent to the user back from the use history data in the history storage unit 52, and provides the holder hole unit 38A corresponding to the holder 2A. The holder lock unit 41A is unlocked and the LED 43A is turned on, and then the door lock unit 27 is unlocked (S1: Yes, S2: Return button pressed, S22, S4). When the user opens the open / close door 31, the holders 2B, 2D to 2J that do not have access rights and the holder 2C that is not lent to the user's back are locked by the holder lock means 41B to 41J, and from the holder hole units 35B to 35J. Unable to pull out. The user back inserts the taken-out holder 2 </ b> A into the corresponding holder hole unit 38 </ b> A, and closes the open / close door 31. Then, the open / close door 31 is locked by the door lock portion 27 and cannot be opened (S5: Yes, S6: Yes, S23). Since the processing after S8 is the same as the <return key> described in the first embodiment, the description thereof is omitted.

  In such a key management box 30 of this embodiment, for example, after a user who has access rights only to the holder 2B uses the holder 2A from the user's back, the user's ID card is used as the ID card. When the return button 29 is pushed over the reading unit 32 and the holder 2A is to be returned to the key management box 30, only the holder lock unit 41B is unlocked, and the holder lock unit 41A is not unlocked. Therefore, the holder mounting hole 35A corresponding to the holder 2A to be returned is blocked by the holder locking means 41A, and the user can not return the holder 2A by inserting the holder 2A into the holder mounting hole 35A. Therefore, according to the key management box 30 of the above aspect, the user A who borrows the holder 2A is obliged to return the holder 2A, and troubles (lost or unauthorized use, etc.) related to the holder 2A being lent out. Since it is clear that the responsibility lies with the user, the key 1 can be managed safely.

  In the key management box 30 of this embodiment, when the user A opens and closes the door 31, the holders 2B, 2D-2J to which the user A does not have access right are locked to the holder locking means 41B, 41D-41J. It has been made impossible to put in and out. Therefore, for example, if the user A tries to take out the key 1 attached to the holder 2J illegally, the user cuts the conductive member 16J with the holder 2J attached to the holder hole unit 38J, or forcibly pulls the conductive member 16J. The holder 2J can only be destroyed. Therefore, the key management box 30 of this embodiment can limit the site where the abnormality occurs in the holder 2 and can detect the abnormality of the holder 2 at an early stage.

(Third embodiment)
Subsequently, a third embodiment of the present invention will be described. FIG. 10 is a configuration block diagram of control of the key management box 30 according to the third embodiment of the present invention.
The key management box 30 of the third embodiment has a controller 61 (authentication means, opening / closing permission means, holder presence / absence detection means, abnormality detection information storage means, holder so as to manage the timing of detecting an abnormality of the holder 2 according to the set time. The configuration of the lending information storage means and the abnormality warning means) is different from the controller 44 of the first embodiment.
The controller 61 includes a timer 62 that measures time. In addition, the ROM 46 of the controller 61 stores a control program 63 for managing confirmation of the abnormality of the holder 2 over time.

FIG. 11 is a flowchart of the control program 63. Here, processing different from the control program 50 of the first embodiment will be described.
When the personal authentication is successful (S1: Yes), the controller 61 resets the timer 62 (S31). When the lending button 28 is pressed and the opening / closing door 31 is opened, the controller 61 starts measuring time by the timer 62. (S2: Lending button pressed, S3, S4, S5: Yes, S32).

  And the controller 61 performs the process of S8-10 similarly to 1st Embodiment, and detects the abnormality of the holder 2. FIG. When the abnormality of the holder 2 is not detected, it is determined whether or not the set time has elapsed based on the measurement time of the timer 62 (S9: Yes, S10: Yes, S35). If the set time has not elapsed (S35: No), it is determined whether or not the door 31 is closed (S37). If the open / close door 31 is not closed (open) (S37: No), it is considered that the user is in the process of taking out the holder 2, so the process returns to S8 and the presence / absence of the holder is detected again. On the other hand, when the door 31 is closed before the set time elapses, the rental use history data of the holder 2 is stored in the history storage unit 14 (S35: No, S37: Yes, S14).

  Even if no abnormality is detected, when the set time has elapsed (S9: Yes, S10: Yes, S35: Yes), the door 31 is forgotten to be closed or the holder is exposed to a risk of being taken out illegally. It is thought that there is. Therefore, the controller 61 issues an open / close door abnormality warning (S36). The method for alarming the opening / closing door is the same as that in the first embodiment (see S11 in FIG. 5). Then, it is confirmed whether the door 31 is closed (S37). When the open / close door 31 is closed (S37: Yes), the open / close door 31 is locked by the door lock unit 27 while the open / close door abnormality warning is generated, and the use history data is stored in the history storage unit 52. On the other hand, if the open / close door 31 remains open after the open / close door abnormality warning occurs (S35: Yes, S36, S37: No), the controller 2 is likely to be taken out illegally. Return to the process of S8, and continue to monitor the holder 2 in a state in which the opening / closing door abnormality warning is generated.

  When an abnormality of the holder 2 is detected, an abnormality warning is generated and abnormality detection information is stored in the abnormality detection information storage unit 53 (S9: No, S10: No, S11, S13). Then, it is determined whether or not the abnormality has been resolved (S33). For example, when the user solves the contact failure of the holder 2 without the access right, the abnormality is eliminated. When the abnormality is thus eliminated, the abnormality warning is canceled and it is determined whether or not a predetermined time has elapsed (S33: Yes, S34, S35). Since the process after S35 is the same as that described above, a description thereof will be omitted.

  On the other hand, if the abnormality is not resolved, the process proceeds to S35 to check whether the set time has elapsed. If the set time has not elapsed, it is determined whether or not the open / close door 31 is closed while maintaining the abnormality warning. (S35: No, S37). On the other hand, when the set time has elapsed, in addition to the abnormality warning, it is determined whether or not the opening / closing door 31 has been closed after the opening / closing door abnormality warning is issued (S35: Yes, S36, S37). Since the processing after S37 is the same as described above, the description thereof is omitted.

  As described above, the key management box 30 of the present embodiment has a longer time to open the door 31 when the conductive member 16 is cut with a tool or the like than when the holder 2 with access right is taken out from the holder mounting hole 35. Becomes longer. Therefore, the key management box measures the time after the opening / closing door 31 is opened by the timer 62, and generates an opening / closing door abnormality warning when the set time has passed. This opening / closing door abnormality warning is issued even when the user puts the holder 2 to which the user has access right into and out of the key management box 30. Therefore, according to the key management box 30 of the present embodiment, the user opens and closes the open / close door 31 in a short time in order to avoid responsibility, and the holder 2 cuts the conductive member 16. Shorten the time at risk.

(Fourth embodiment)
Subsequently, a fourth embodiment of the present invention will be described. A schematic configuration of the holder 71 is shown in FIG.
The key management box 30 of the fourth embodiment is different from the first embodiment only in the holder 71. Therefore, here, the holder 71 will be described, and other description will be omitted.
In the resin case 72 of the holder 71, the first terminal 11 is connected to the second terminal via the IC tag 10, the third terminal 13, the conductive member 76, the engaging member 77, and a locking member (an example of a locking portion) 74. A circuit conducting to 12 is provided. The case 72 is integrally provided with one end of the conductive member 76 in contact with the third terminal 13 by insert molding. The conductive member 76 is insulated by covering the portion exposed from the case 72 with the insulating cover 16c.

  The engaging member 77 is caulked and fixed to the other end of the conductive member 76. The engaging member 77 is made of a conductive metal material, and is electrically connected to the second terminal 12 via a locking member 74 (an example of a locking portion) that is also made of a conductive metal material. In the case 72, an insertion hole 72a is formed on a side surface opposite to the side surface on which the first and second terminals 11 and 12 are provided, and a substantially cylindrical engaging member 77 is inserted into the insertion hole 72a. The case 72 has a locking member disposition hole 72b for disposing the locking member 74 on the inner wall of the insertion hole 72a. The locking member arrangement hole 72b is provided so as to be orthogonal to the insertion hole 72a. The locking member 74 is accommodated in the locking member arrangement hole 72b so as to slide in a direction crossing the direction in which the engagement member 77 is inserted. A compression spring 75 is contracted in the locking member arrangement hole 72b and constantly urges the locking member 74 to protrude from the locking member arrangement hole 72b to the insertion hole 72a. The amount of protrusion of the locking member 74 that protrudes into the insertion hole 72a is regulated by abutting the flange portion 74b provided in an annular shape on the outer peripheral surface against a stopper 72c provided at the opening of the locking member arrangement hole 72b. ing. The locking member 74 is a portion projecting into the insertion hole 72a, and a taper 74a is provided on the opening side of the insertion hole 72a. The engaging member 77 is provided with a conical surface 77a having an inclination corresponding to the taper 74a on the outer periphery of the tip. The engaging member 77 is provided with an annular engaging groove 77b that engages with the locking member 74 on the outer peripheral surface on the rear end side of the conical surface 77a.

  In such a holder 71, the engaging member 77 is not yet inserted into the insertion hole 72a at the time of manufacture, and the other end of the conductive member 76 is released. In the holder 71, the conductive members 76 are inserted into the plurality of keys 1, and the plurality of keys 1 are attached by inserting the engaging members 77 into the insertion holes 72 a and engaging with the locking members 74. When the engagement member 77 is inserted into the insertion hole 72a, when the conical surface 77a of the engagement member 77 is applied to the taper 74a of the locking member 74, the force in the insertion direction of the engagement member 77 is increased in the insertion direction. On the other hand, the direction is converted to a direction orthogonal to each other and transmitted to the locking member 74, and the locking member 74 is retracted into the engagement member disposition hole 72 b while compressing the compression spring 75. Thereby, the engaging member 77 is inserted into the insertion hole 72a beyond the locking member 74. When the engaging groove 77b of the engaging member 77 reaches the locking member 74, the locking member 74 projects into the insertion hole 72a by the spring force of the compression spring 75 and engages with the engaging groove 77b. As a result, the locking member 74 is always in contact with the groove wall of the engagement groove 77 b, and a current can flow between the engagement member 77 and the locking member 74. Even if the engaging member 77 is pulled in the direction of pulling out from the insertion hole 72a, the engaging member 77 cannot be pulled out from the case 72 because the locking member 74 is hooked in contact with the groove side wall of the engaging groove 77b. . That is, the engaging member 77 cannot be removed from the case 72 and the key 1 cannot be removed from the holder 71.

As described above, in the key management box 30 of the fourth embodiment, when the conductive member 76 is pulled in the direction opposite to the insertion direction to the holder 71 in order to remove the key 1 from the holder 71, the locking member 74 is engaged. The case 72 is pulled up by the joint member 77 to deform or destroy it. Therefore, according to the key management box 30 of the present embodiment, for example, the holder 71 without access right is removed from the key management box 30 and the conductive member 76 is forcibly pulled from the holder 71 to engage the engaging member 77 and the locking member 74. Even after the engagement state is released and the key 1 is taken out, a work for connecting the third terminal 13 and the locking member 74 to the holder 71 is applied to the holder 71, and the holder 71 is returned to the key management box 30. Traces of fraudulent action on the holder 71 remain from deformation and breakage traces of the holder 71, and an abnormality of the holder 71 can be detected at an early stage.
After finding fraud in the holder 71, it is possible to identify the person who used the holder 71 from the history data stored in the history storage unit 52 and narrow down the persons who have acted fraud on the holder 71.

(Fifth embodiment)
A fifth embodiment of the present invention will be described. An external perspective view of the holder 81 is shown in FIG. 13, and a diagram showing a schematic configuration of the holder 81 is shown in FIG.
The key management box 30 of the fifth embodiment is different from the first embodiment only in the holder 81 shown in FIGS. Therefore, here, the holder 81 will be described, and the description of the others will be omitted.
In the holder 81 shown in FIG. 13, a plurality of keys 1 are attached to a rack (an example of a conductive member) 85 exposed from the case 82. The LED 86 is attached to a surface of the holder 81 where the rack 85 is exposed so that the user can easily see when the holder 81 is stored in the key management box 30.

  As shown in FIG. 14, the resin case 82 of the holder 81 is provided in the rack 85 with the first and second terminals 11 and 12 conducting with a pair of metal pinions 83 </ b> A and 83 </ b> B via the rack 85. The IC tag data of the IC tag 10 can be read. In the case 82, two insertion holes 82a and 82b into which both ends of the rack 85 are inserted are formed in parallel. The pair of pinions 83A and 83B are arranged so as to expose part of the teeth from the openings 82c provided in the inner walls of the insertion holes 82a and 82b, and the rotation shafts 84A and 84B (of the first and second conductive terminals). (Example) is rotatably supported. The pair of pinions 83A and 83B rotate only in the direction in which the rack 85 is inserted into the insertion holes 82a and 82b. The first terminal 11 is connected to the rotating shaft 84A through the LED 86 so as to be energized, and the second terminal 12 is connected to the rotating shaft 84B so as to be energized. The metal rack 85 brings the rotating shafts 84A and 84B into conduction by engaging the teeth 85a with the pinions 83A and 83B. The holder 85 has an insulating cover 16 c attached to a portion exposed from the holder 81.

  In such a holder 81, when both ends of the rack 85 inserted through the plurality of mechanical keys 1 are inserted into the insertion holes 82a and 82b, the teeth 85a of the rack 85 mesh with the pinions 83A and 83B, and the pinions 83A and 83B are engaged. It is inserted deeply into the insertion holes 82a and 82b while being rotated. As a result, the plurality of keys 1 are attached to the holder 81.

  When such a holder 81 is inserted into the holder mounting hole 35 of the key management box 30 and the first and second terminals 11 and 12 come into contact with the IC tag data reading means 42, the holder 81 is removed from the IC tag data reading means 42. The supplied current flows from the first terminal 11 to the second terminal 12 via the LED 86, the rotating shaft 84A, the pinion 83A, the rack 85, the IC tag 10, the pinion 83B, and the rotating shaft 84B, and the IC tag data of the IC tag 10 is transferred. Read. In this case, since the LED 86 is lit by the current flowing through the IC tag 10, the user can confirm that the IC tag data has been normally read by the LED 86 being lit.

  Since the pair of pinions 83A and 83B rotate only in the insertion direction of the rack 85 in the key management box 30, when the rack 85 is forcibly pulled in the direction opposite to the insertion direction in order to remove the key 1, the pair of pinions 83A and 83B The pair of rotary shafts 84A and 84B are pulled by the rack 85 to deform or destroy the case 82. Therefore, even if the improper traces on the holder 81 remain in the holder 81 and the rack 85 is reinserted into the holder 81 and the holder 81 is returned to the key management box 30, it is confirmed that the improper operation has been performed on the holder 81. It can be found from deformation, breakage, etc., and fraud of the holder 81 can be detected at an early stage.

  Moreover, since the IC tag 10 is removed together with the rack 85 when the rack 85 is removed from the holder 81 attached to the holder hole unit 38 in order to remove the key 1 from the holder 81 without access right, The key management box 30 can detect an abnormality of the holder 81 because the IC tag data reading unit 42 cannot read the IC tag data from the holder 81.

  By the way, for example, when an oxide film is formed on the first and second terminals 11 and 12, the pinions 83 </ b> A and 83 </ b> B, the rotation shafts 84 </ b> A and 84 </ b> B, and the rack 85 and a contact failure occurs, an abnormality of the holder 81 is detected. . In this case, even if the LED 43 of the key management box 30 is lit, the LED 86 of the holder 81 is not lit, so the user immediately recognizes that a contact failure has occurred in the holder 81 and tries an appropriate process. Can do.

  Note that the key management box 30 of the present embodiment is provided with the IC tag 10 on the rack 85, so that, for example, the rack 85 is pushed to release the engagement between the teeth 85a and the pinions 83A and 83B and protrudes from the case 82. If the rack 85 is removed from the holder 81 by cutting off both ends of the rack 85 and another rack 85 is inserted into the insertion holes 82a and 82b and the rack 85 is replaced, the IC tag data can be easily changed and different types of The holder 81 can be manufactured at low cost. In this case, the cost can be reduced by using the case 82 in common.

(Sixth embodiment)
Subsequently, a sixth embodiment of the present invention will be described. A schematic configuration of the holder 91 is shown in FIG.
The key management box 30 of the sixth embodiment is different from the first embodiment only in the holder 91. Therefore, here, the holder 91 will be described.
The holder 91 includes a resin case 92, the first terminal 11 is the IC tag 10, the third terminal (an example of the first conductive terminal) 93, the conductive member 96, and the fourth terminal (an example of the second conductive terminal). The second terminal 12 is connected to the second terminal 12 through a power supply 94.

  The case 92 is formed by insert-molding the conductive member 96 with the fourth terminal 94 brought into contact with one end of the conductive member 96. The case 92 has an insertion hole 92a into which the other end of the conductive member 96 is inserted. A third terminal 93 is fixed to the bottom of the insertion hole 92 a, and an engagement member 97 provided at the other end of the conductive member 96 is engaged with the third terminal 93, so that the IC tag 10 and the first terminal 11 are connected. It is connected so that it can be energized. In the engaging member 97, teeth 97a are formed on the outer peripheral surface of the tip portion formed in a conical shape, and the tip side is inclined. The third terminal 93 is formed with a tooth hole 93 a that fits the tooth 97 a of the engaging member 97, and the engaging member 97 that engages the tooth 97 a with the tooth hole 93 a is prevented from being easily removed from the third terminal 93. ing. In the insertion hole 92 a, a resin locking member (an example of a locking portion) 95 protrudes above the third terminal 93. The locking member 95 has a dogleg shape, is arranged so that the tip portion faces the bottom side of the insertion hole 92 a, and is fixed to the case 92. A pinching groove 95a for sandwiching and supporting the conductive member 96 with the inner wall of the insertion hole 92a is formed at the distal end portion of the locking member 95.

  In such a holder 91, when the plurality of keys 1 are inserted into the conductive member 96 and the engaging member 97 is inserted into the insertion hole 92a, the engaging member 97 is inserted into the sandwiching groove 95a while bending the locking member 95. The third terminal 93 is engaged. As a result, the third terminal 93 is electrically connected to the fourth terminal 94 via the conductive member 96. When the engaging member 97 passes through the sandwiching groove 95a, the locking member 95 is restored to its original shape by releasing the force in the inserting direction of the engaging member 97, and the opening of the engaging member 97 and the insertion hole 92a. Place the tip between the two. The engaging member 97 is difficult to be removed from the third terminal 93 due to the engagement between the teeth 97a and the tooth hole 93a of the third terminal 93. However, the engaging member 95 is pressed by the opening end surface of the insertion hole 92a and the insertion hole is inserted. It is hard to come off from 92a. In such a holder 91, when the conductive member 96 is pulled excessively in the direction of pulling out from the insertion hole 92 a, the engaging member 97 breaks the locking member 95, or the conductive member 96 is connected to the engaging member 97. The key 1 cannot be exchanged illegally because it is cut off and destroyed.

(Seventh embodiment)
Next, a seventh embodiment of the present invention will be described with reference to the drawings. A schematic configuration of the holder 121 is shown in FIG.
The key management box 30 of the seventh embodiment is different from the first embodiment only in the holder 121. The holder 121 is fixed in a state where one end of a conductive member 124 made of a conductive metal is in contact with the fourth terminal 14. An engagement screw member 125 made of a conductive metal is caulked and fixed to the other end of the conductive member 124, and a locking nut member 123 that is screwed into the engagement screw member 125 is provided in the resin holder 122. The locking nut member 123 is made of a conductive metal, and is rotatably held by the case 122 with a part thereof exposed from a window 122b provided in the case 122.

  In such a holder 121, after the conductive member 124 is inserted through the plurality of keys 1, the engaging screw member 125 is inserted into the insertion hole 122a of the case 122 and inserted into the locking nut member 123, and is exposed from the window 122b. The locking nut member 123 is rotated. Thereby, the locking nut member 123 and the engaging screw member 125 are screwed together, and the first terminal 11 connects the IC tag 10, the locking nut member 123, the engaging screw member 125, the conductive member 124, and the fourth terminal 14. And a circuit for reading the IC tag data of the IC tag 10 is formed. The locking nut member 123 is screwed into the engagement screw member 125 and then crushed so that it cannot rotate in the case 122. Thereby, in the holder 121, the conductive member 124 cannot be removed from the holder 121, and the key 1 is not attached to or detached from the holder 121 without permission.

  In the key management box 30 of this embodiment, when the conductive member 124 is pulled in the direction opposite to the insertion direction to the holder 121 in order to remove the key 1 from the holder 121, the locking nut member 123 is engaged with the engagement screw member. The case 122 is pulled or pulled to deform or break the case 122. Therefore, according to the key management box 30 of the present embodiment, if fraud is applied to the holder 121, the trace remains on the holder 121, and an abnormality of the holder 121 can be detected at an early stage.

(Eighth embodiment)
Next, an eighth embodiment of the present invention will be described. FIG. 17 is a diagram illustrating a schematic configuration of the holder 131 according to the eighth embodiment of the present invention. FIG. 18 is a diagram showing a schematic configuration of the IC tag data reading unit 141.
The key management box 30 according to the eighth embodiment includes a circuit between the first and second terminals 11 and 12 and a current flowing in a predetermined direction via the IC tag 10 between the first and second terminals 11 and 12. The holder 131 is provided with a circuit for passing a current in a direction opposite to a predetermined direction via the conductive member 135 without the IC tag 10, and the electrodes of the first and second terminals 11 and 12 of the holder 131 are alternately arranged when the key 1 is returned. The direction of the current flowing through the holder 131 is switched to a predetermined direction or a direction opposite to the predetermined direction by switching to, and the conductive member 135 depends on whether or not the H level voltage can be detected when the current flows in the direction opposite to the predetermined direction. It is determined whether or not it has been disconnected.

  In the eighth embodiment, when the holder 2 from which the conductive member 16 has been cut is returned to the key management box 30, the IC tag data cannot be read from the IC tag 10 of the holder 2. On the other hand, in the eighth embodiment, when the conductive member 135 is cut, a current in a predetermined direction is passed between the first and second terminals 11 and 12 of the holder 131 to generate IC tag data from the IC tag 10. On the other hand, when a current in the direction opposite to the predetermined direction is passed between the first and second terminals 11 and 12, the H level voltage cannot be detected. It can be detected. Therefore, in the eighth embodiment, it is possible to specify the holder 131 from which the conductive member 135 has been cut, leave history data, and improve the security level.

<Schematic configuration of holder>
As shown in FIG. 17, the holder 131 allows current to flow from the first terminal 11 to the second terminal 12 via the IC tag 10 and the diode 133 (in a predetermined direction) so that the IC tag data of the IC tag 10 is read. In addition, an electric circuit is formed. In addition, the holder 131 causes a current to flow from the second terminal 12 to the first terminal 11 (in a direction opposite to the predetermined direction) through the diode 134, the LED 132, the fourth terminal 14, the conductive member 135, and the third terminal 13, and the IC An electric circuit is formed so that the LED 132 is lit without passing current through the tag 10. More specifically, in the holder 131, the IC tag 10 is provided in parallel with the conductive member 135, and the LED 132 and the diode 134 are provided in series with the conductive member 135.

<Schematic configuration of data reading means>
The IC tag data reading means 141 can change the circuit for setting the first terminal 11 of the holder 131 as an anode and the circuit for setting the second terminal 12 of the holder 131 as an anode as shown in FIG. Yes. As shown in FIG. 18, in the circuit using the second terminal 12 as an anode, the first lead electrode 142 contacts the first terminal 11 of the holder 131, and the second lead electrode 143 contacts the second terminal 12 of the holder 131. To do. The second lead electrode 143 applies an H level voltage (here, 5 V voltage) to the second terminal 12 of the holder 131. The H / L voltage determination unit 145 is connected to the first lead electrode 142 via the diode 144 and monitors the voltage of the first lead electrode 142. The resistor 146 is provided on a branch wiring that branches from the contact point P1 between the first lead electrode 142 and the diode 144 and is connected to the ground, and drops the voltage acting on the first lead electrode 142 via the first terminal 11. I am letting.

<Description of operation>
When the opening / closing door 31 is opened based on the authentication data read from the ID card reading unit 32, the key management box 30 reads the IC tag data reading means so that the first and second lead electrodes 142, 143 are alternately used as anodes. 141 to switch the electrode. For example, the IC tag data reading unit 141 repeats the operation of setting the first lead electrode 142 to the anode for several seconds and then setting the second lead electrode 143 to the anode for several milliseconds.

  When the returner returns the holder 131 to the key management box 30 without cheating the holder 131, the first and second terminals 11 and 12 of the holder 131 come into contact with the first and second lead electrodes 142 and 143. While the IC tag data reading unit 141 uses the first lead electrode 142 as an anode, current flows from the first lead electrode 142 to the first terminal 11, the diode 133, the IC tag 10, the second terminal 12, and the second lead electrode 143. And flow. Therefore, the IC tag data reading unit 141 can read the IC tag data from the IC tag 10. In this case, no current flows through the LED 132 by the diode 134, and the LED 132 is not lit.

  On the other hand, as shown in FIG. 18, while the IC tag data reading unit 141 uses the second lead electrode 143 as an anode, current flows from the second lead electrode 143 to the second terminal 12, the LED 132, the diode 134, and the third terminal 13. Then, it flows to the first lead electrode 142 through the conductive member 135, the fourth terminal 14, and the first terminal 11. At this time, the voltage reduced at the contact P1 to which the resistor 146 is connected acts on the first lead electrode 142, and the H / L voltage determination means 145 determines that the H level voltage is output (detects the H level voltage). . Thus, when the H / L voltage determination means 145 detects the H level voltage, the key management box 30 determines that the conductive member 135 is not cut, and the authentication data read by the ID card reader 32 The IC tag data read from the IC tag 10 of the returned holder 131 and the date and time when the holder 131 is returned are associated with each other and stored in the history storage unit 52 as history data. Thereby, by referring to the history data in the history storage unit 52, it can be confirmed that the user has returned the holder 131 normally.

  On the other hand, the returner takes out the holder 131 from the key management box 30 with a legitimate authority, cuts the conductive member 135, removes the key 1 from the holder 131, and manages the holder 131 that has performed the fraud. When returned to the box 30, the first and second terminals 11 and 12 of the holder 131 come into contact with the first and second lead electrodes 142 and 143. However, since the conductive member 135 is cut, the holder 131 can be connected to the second terminal 12 through the conductive member 135 even if a current flows from the first terminal 11 to the second terminal 12 through the IC tag 10. No current flows to 1 terminal 11. In this case, no voltage acts on the contact P1 shown in FIG. 18, and the H / L voltage determination means 145 cannot detect the H level voltage. As described above, when the H / L voltage determination unit 145 does not detect the H level voltage, the key management box 30 determines that the conductive member 135 is disconnected. Thereafter, when the IC tag data reading unit 141 switches the first lead electrode 142 to the anode, a current flows from the first terminal 11 to the second terminal 12 through the IC tag 10. Therefore, the key management box 30 reads the IC tag data from the IC tag 10 by the IC tag data reading unit 141 and confirms that the holder 131 has been returned. Thus, the key management box 30 that confirms the return of the holder 131 and the cutting of the conductive member 134 includes the authentication data read by the ID card reading unit 32 and the IC tag read by the IC tag data reading unit 141 from the IC tag 10. The data and the date and time when it is determined that the conductive member 135 has been cut are associated with each other and stored in the history storage unit 52 as history data. Thereby, referring to the history data in the history storage unit 52, the holder 131 from which the conductive member 135 has been cut can be identified, and who has returned the fraudulent holder 131 can be identified. Can be revealed.

  By the way, when the returner returns the holder 131 normally, the LED 132 is repeatedly turned on again only after it has been turned off for several milliseconds after the lighting. For this reason, the returner looks like the LED 132 of the holder 131 is continuously lit due to the afterimage effect. Therefore, the returner can visually confirm that the key management box 30 has recognized the normal return of the holder 131 from the continuous lighting state of the LED 132.

  On the other hand, for example, when an oxide film is generated on the first and second terminals 11 and 12, poor contact occurs on the first and second terminals 11 and 12 and the first and second lead electrodes 142 and 143. In this case, the contact state between the first and second terminals 11 and 12 and the first and second lead electrodes 142 and 143 becomes unstable, and the LEDs 132 blink irregularly. Therefore, the returner has detected that the contact failure has occurred in the first and second terminals 11 and 12 from the irregular blinking state of the LED 132, and the key management box 30 has not recognized the normal return of the holder 131. It can be confirmed visually.

  Therefore, the key management box 30 of the present embodiment allows the returner to return the holder 131 to the key management box 30 so that the LED 132 is continuously lit in order to avoid responsibility when an abnormality occurs. It is possible to reduce false detection of abnormality due to defects and improve abnormality detection accuracy.

  Further, even if the holder 131 from which the conductive member 135 is cut is returned to the key management box 30, the LED 132 is not lit. Therefore, the next person who opened the key management box 30 or the manager of the key management box 30 cuts the holder 131 and the conductive member 135 from which the conductive member 135 was cut depending on whether or not the LED 132 of the holder 131 is lit. It is possible to easily distinguish the holder 131 that is not provided.

<Effect>
Therefore, in the key management box 30 of the eighth embodiment, by referring to the history data, it is possible to identify the holder from which the conductive member 135 is cut, and to identify when and by whom the holder was returned. Level is improved. As a result, even if the return person of the key 1 returns the holder 131 from which the conductive member 135 is cut to the key management box 30 and then connects the conductive member 135 so that the LED 132 is turned on, The holder 131 from which the conductive member 135 is cut can be identified from the history data in the storage unit 52, and the return person and return date and time of the holder 131 can be identified.

  The key management box 30 of the eighth embodiment permits the opening and closing of the door 31 and exposes the holder 131 mounted in the holder mounting hole 35 to the outside when the personal authentication is successful, so that the individual Without being authenticated, the conductive member 135 of the holder 131 is not cut, and the location of responsibility for cutting the conductive member 135 can be clarified.

(Ninth embodiment)
Subsequently, a ninth embodiment of the present invention will be described. FIG. 19 is a diagram illustrating a schematic configuration of the holder 151 according to the ninth embodiment of the present invention.
In the key management box 30 of the ninth embodiment, the holder 151 includes a plurality (two in this embodiment) of IC tags 152 and 153. Depending on the number of IC tag data read, the holder 151 is not returned and the holder 151 is normal. The return of the holder 151 from which the conductive member 155 has been cut is distinguished and recognized.

<Schematic configuration of holder>
In the holder 151, when the first terminal 11 is switched to the anode, current flows from the first terminal 11 to the second terminal 12 via the first IC tag 152 and the second IC tag 153, and the first and second IC tags. The electric circuit is configured so that the IC tag data 152 and 153 can be read. Further, the holder 151 is configured so that when the second terminal 12 is switched to the anode, an electric current flows from the second terminal 12 to the first terminal 11 via the LED 157 even if the conductive member 155 is cut. A circuit is configured.

  Specifically, in the holder 151, a current flows from the first terminal 11 to the second terminal 12 via the first IC tag 152 by the diode 154. A second IC tag 153 is connected in parallel to the diode 154 so that current flows from the second IC tag 153 to the second terminal 12 via the third terminal 13, the conductive member 155, and the fourth terminal 14. . The LED 157 is connected in parallel to the first IC tag 152. The LED 157 is energized and lit when the second terminal 12 is anodized by the diode 156.

<Description of operation>
In such a key management box 30 of the ninth embodiment, after the opening / closing door 31 is opened based on the authentication data read by the ID card reading unit 32, the IC tag data reading means is the first of the holder 151 by the program. The electrodes of the second terminals 11 and 12 are alternately switched. Until the holder 151 is returned, the first and second terminals 11 and 12 of the holder 151 to be returned are not in contact with the IC tag data reading means. The IC tag data cannot be read from the second IC tags 152 and 153. That is, the number of IC tag data read is zero. In this case, the key management box 30 determines that the holder 151 whose number of IC tag data is read is 0 is not returned.

  In the key management box 30, when the holder 151 is returned without cutting the conductive member 155 after the opening / closing door 31 is opened, the IC tag data reading means (not shown) contacts the first and second terminals 11 and 12. Then, the electrodes of the first and second terminals 11 and 12 are switched alternately. When the first terminal 11 is an anode, the current supplied to the first terminal 11 flows to the second terminal 12 via the first IC tag 152 and the diode 154, and between the first IC tag 152 and the diode 154. To the second IC tag 153, and flows to the second terminal 12 through the third terminal 13, the conductive member 155, and the fourth terminal 14. Therefore, the IC tag data reading unit can read the IC tag data from the first and second IC tags 152 and 153 of the holder 151. That is, the number of IC tag data read is two. In this case, the key management box 30 determines that the conductive member 155 has been returned without being cut with respect to the holder 151 that has acquired the two IC tag data. The key management box 30 includes the authentication data read by the ID card reading unit 32, the two IC tag data read from the first and second IC tags 152 and 153 of the returned holder 151, and the holder 151 returned. The associated date and time are associated with each other and stored in the history storage unit 52 as history data. Thereby, by referring to the history data in the history storage unit 52, it can be confirmed that the return person has returned the holder 151 normally.

  When the IC tag data reading means sets the second terminal 12 as an anode, current flows from the second terminal 12 to the first terminal 11 via the diode 156 and the LED 157, and the LED 157 is turned on. When the IC tag data reading means uses the second terminal 12 as an anode at intervals of, for example, several milliseconds, the LED 157 appears to be continuously lit by the afterimage effect to human eyes.

  On the other hand, when the return person cuts the conductive member 155 of the holder 151 and removes the key 1 from the holder 151, opens the open / close door 31 of the key management box 30 and returns the holder 151. Data contacts the first and second terminals 11 and 12 of the holder 151. When the IC tag data reading means (not shown) switches the first terminal 11 to the anode, the current flows to the second terminal 12 through the first IC tag 152 and the diode 154, but from the second IC tag 153 to the second terminal 12. Does not flow. Therefore, the IC tag data reading unit can read only the IC tag data of the first IC tag 152. That is, the number of IC tag data read is one. In this case, the key management box 30 identifies the holder 151 returned by the IC tag data read from the first IC tag 152, and determines that the conductive member 155 of the holder 151 is cut. Then, the key management box 30 associates the authentication data read by the ID card reading unit 32, the IC tag data read from the first IC tag 152, and the date and time when it is determined that the conductive member 155 has been disconnected as history data. Store in the history storage unit 52. As a result, referring to the history data in the history storage unit 52, the holder 151 from which the conductive member 155 is cut is identified, who identifies when the identified holder 151 is returned, and the location of responsibility is clarified. can do.

  When the key management box 30 detects that the conductive member 155 of the returned holder 151 is cut, the conductive member 155 has a pattern in which the second terminal 12 of the holder 151 from which the conductive member 155 has been cut is used as an anode. The pattern is changed to a pattern in which the second terminal 12 of the uncut holder 151 is used as an anode. For example, the time for using the second terminal 12 of the holder 151 from which the conductive member 155 is cut as the anode is set shorter than the time for using the second terminal 12 of the holder 151 as the anode from which the conductive member 155 is not cut. In this case, the holder 151 from which the conductive member 155 is cut looks like the LED 157 blinking, and can be distinguished at a glance from the holder 151 from which the conductive member 155 in which the LED 157 is continuously lit is not cut. In this way, the key management box 30 changes the LED lighting method of the holder from which the conductive member 155 is cut and the LED lighting method of the holder 151 from which the conductive member 155 is cut to warn that the conductive member 155 has been cut. Therefore, the person who returns the key 1 or the manager of the key management box 30 can easily recognize the holder 151 from which the conductive member 155 has been cut, from the difference in the lighting method (flashing or continuous lighting) of the LED 157.

<Effect>
As described above, the key management box 30 according to the ninth embodiment can identify the holder 151 from which the conductive member 155 is cut and can identify when the holder 151 is returned by referring to the history data. So the security level is improved. As a result, even if the return person of the key 1 returns the holder 151 from which the conductive member 155 is cut to the key management box 30 and then connects the conductive member 155, the history data in the history storage unit 52 The holder 151 from which the conductive member 155 has been cut can be specified, and the return person and return date and time of the holder 151 can be specified.

  The key management box 30 of the ninth embodiment permits the opening and closing of the door 31 and exposes the holder 151 mounted in the holder mounting hole 35 to the outside when the personal authentication is successful, so that the individual Without being authenticated, the conductive member 155 of the holder 151 is not cut, and the location of responsibility for cutting the conductive member 155 can be clarified.

(10th Embodiment)
Subsequently, a tenth embodiment of the present invention will be described. FIG. 20 is a block diagram of an electric circuit provided in the holder 160 according to the tenth embodiment of the present invention.
The key management box shown in the prior art can detect whether or not the wire has been cut for the key holder mounted in the holder mounting hole, but can detect the cutting of the wire for the key holder taken out of the holder mounting hole. There wasn't. Specifically, the key management box shown in the prior art, when the key holder taken out from the holder mounting hole is cut the wire, the cut portion of the wire is connected, and then returned to the key management box, Since IC tag data can be read from the IC tag of the returned key holder, it was not possible to detect that the wire was cut. Therefore, the key management box shown in the prior art has a low security level.
Therefore, a holder 160 shown in FIG. 20 includes a flip-flop circuit 171 (an example of a conductive member disconnection detecting unit) and a capacitor used as an operation power source of the flip-flop circuit 171 when the holder 160 is taken out of the key management box 30. 169 (an example of an operating power supply) is built in, and the security level is raised by allowing the key management box 30 to detect that the conductive member 174 has been disconnected while being taken out of the key management box 30. Except for this point, the configuration of the holder 160 and the key management box 30 to which the holder 160 is attached is common to the first embodiment. Here, the points different from the first embodiment will be mainly described, and the points common to the first embodiment are denoted by the same reference numerals as those of the first embodiment in the drawings and description, and the description thereof will be omitted as appropriate.

  As shown in FIG. 20, the electric circuit in the holder 160 of the tenth embodiment includes a first terminal 161, a second terminal 162, a third terminal 163, and a fourth terminal 164. The first and second terminals 161 and 162 contact the IC tag data reading means 42 of the key management box 30 when the holder 160 is mounted in the holder mounting hole 35. In the key management box 30, the controller 44 switches the polarity (anode and cathode) of the first and second terminals 161 and 162 via the data reading means 42. The third and fourth terminals 163 and 164 are in contact with the conductive member 174 in the same manner as the contact structure between the third and fourth terminals 13 and 14 and the conductive member 16 in the first embodiment. The conductive member 174 is pulled out of the holder 160 and the mechanical key 1 is attached. In order to insulate the conductive member 174 from the mechanical key, the surface is coated with an insulating coating except for portions that contact the third and fourth terminals 163 and 164.

  As shown in FIG. 20, an IC tag 165 and an LED 167 are provided in parallel between the first terminal 161 and the second terminal 162. The electric circuit is provided with diodes 166 and 168 so that reverse current flows through the IC tag 165 and the LED 167. Specifically, the diode 166 has an anode side connected to the IC tag 165 and a cathode side connected to the IC tag 165 so that a current flows through the IC tag 165 when the first terminal 161 is an anode and the second terminal 162 is a cathode. The terminal 162 is connected. The LED 167 is arranged so that a current flows when the first terminal 161 is a cathode and the second terminal 162 is an anode. The diode 168 prevents the current from flowing from the first terminal 161 to the LED 167. In addition, the anode side is connected to a contact P11 between the diode 166 and the second terminal 162, and the cathode side is connected to the LED 167.

  The contact P11 is connected to the conductive member 174 via the diode 170 and the fourth terminal 164 so that a current flows only to the conductive member 174 side. A contact P13 between the diode 170 and the fourth terminal 164 is connected to a capacitor 169 so that the current supplied from the contact P11 to the contact P13 can be charged in the capacitor 169. A contact P14 between the contact P13 and the fourth terminal 164 is connected to the flip-flop circuit 171, and supplies a current from the capacitor 169 to the flip-flop circuit 171.

  In the flip-flop circuit 171, the Set port is connected to the conductive member 174 via the third terminal 163, and the voltage of the capacitor 169 acts on the Set port via the fourth terminal 164, the conductive member 174, and the third terminal 163. It has become. A contact P17 between the third terminal 163 and the Set port is connected to a pull-down resistor 173, and a voltage acting on the Set port is adjusted to a predetermined voltage. The Reset port of the flip-flop circuit 171 is connected to the IC tag 165 so that a Reset signal for resetting the flip-flop circuit 171 to a normal state (the output of the A port is set to L level) can be input from the IC tag 165. It has become. The contact P16 between the Reset port and the IC tag 165 is connected to the contact P15 between the fourth terminal 164 and the contact P14 via the pull-up resistor 172, so that a voltage always acts on the Reset port. ing. The A port of the flip-flop circuit 171 is connected to the IC tag 165 so that the H level and the L level can be switched by a voltage acting on the Set port and the Reset port.

More specifically, in the flip-flop circuit 171, when the Set port is switched from the H level to the L level, the output of the A port is set to the H level.
Further, when the Reset port receives the Reset signal from the IC tag 165 and is set to the L level, the flip-flop circuit 171 is reset by switching the output of the A port from the H level to the L level. When Set and Reset are at the H level, the state of the A port remains unchanged.

The holder 160 provided with such an electric circuit operates as follows. FIG. 21 to FIG. 26 are diagrams for explaining the operation of the electric circuit built in the holder 160.
As shown in FIG. 21, the capacitor 169 of the holder 160 is charged while being mounted in the holder mounting hole 35 of the key management box 30. That is, the holder 160 is mounted in the holder mounting hole 35 of the key management box 30 so that the first and second terminals 161 and 162 are brought into contact with the IC tag data reading means 42. The controller 44 (an example of an abnormality occurrence storage unit and an output reset unit) of the key management box 30 performs a first operation from the IC tag data reading unit 42 so that the first terminal 161 of the holder 160 is a cathode and the second terminal 162 is an anode. A current is supplied to the two terminal 162. Thus, current flows from the second terminal 162 to the first terminal 161 via the contact P11, the diode 168, and the LED 167, turns on the LED 167, and flows from the contact P11 to the capacitor 169 via the diode 170.

  As shown in FIG. 22, the key management box 30 has the IC tag data reading means 42 so that the controller 44 uses the first terminal 161 of the holder 160 as an anode and the second terminal 162 as a cathode during charging. A current is supplied to the first terminal 161. As a result, current flows from the first terminal 161 to the second terminal 162 via the IC tag 165, and the IC tag data of the IC tag 165 is read. When the holder is attached to the key management box 30 for the first time, the A port may be indefinite. When the administrator of the key management box 30 confirms and initializes that the holder 160 is normal, the controller 44 sets the reset port of the flip-flop circuit 171 to the L level, and then returns to the H level by the IC tag. Command 165. As a result, the A port of the flip-flop circuit 171 is held in a normal state at the L level. At this time, since the voltage of the charged capacitor 169 is higher than the second terminal 162, the current is blocked by the diode 170 and does not flow to the capacitor 169.

  As shown in FIG. 22, the controller 44 sequentially gives an instruction for setting the first terminal 161 to the anode for several msec to the IC tag data reading means 42 provided in each holder mounting hole 35, and whether or not the IC tag data can be read. Thus, the presence or absence of the holder 160 is detected. Except for the time for reading the IC tag data, the controller 44 gives an instruction to make the second terminal 162 the anode to the IC tag data reading means 42 provided in each holder mounting hole 35 as shown in FIG. Charge the battery.

  As shown in FIGS. 23 and 24, after being taken out of the key management box 30, the holder 160 activates the flip-flop circuit 171 using the power of the capacitor 169 and monitors the disconnection of the conductive member 174. Specifically, the flip-flop circuit 171 is supplied with current from the capacitor 169 via the contact P14 regardless of whether the conductive member 174 is cut or not. As shown in FIG. 23, when the conductive member 174 is not cut, the flip-flop circuit 171 causes the voltage of the capacitor 169 to act on the Set port and the Reset port, so that the Set port and the Reset port are set to the H level. Yes. In this case, in the flip-flop circuit 171, the output of the A port is held at the L level.

  However, as shown in FIG. 24, when the conductive member 174 is cut, the flip-flop circuit 171 does not act on the Set port, although the voltage of the capacitor 169 acts on the Reset port. That is, the Set port is switched from the H level to the L level. Therefore, in the flip-flop circuit 171, the output of the A port is switched from the L level to the H level.

  Thereafter, as shown by the dotted line in FIG. 24, when the cut portion of the conductive member 174 is connected to the holder 160, the voltage of the capacitor 169 acts on the Set port of the flip-flop circuit 171, and the Set port becomes L Switch from level to H level. However, in the flip-flop circuit 171, regardless of whether the conductive member 174 is cut or not, the voltage of the capacitor 169 always acts on the Reset port, and the Reset port maintains the H level. Therefore, the flip-flop circuit 171 maintains the output of the A port at the H level even when the conductive member 174 is connected to the cut portion and the third and fourth terminals 163 and 164 are conducted. That is, the flip-flop circuit 171 stores that the conductive member 174 has been cut.

  As shown in FIG. 25, when the holder 160 is returned to the key management box 30 after the cut portion of the conductive member 174 is connected, the IC tag data reading means 42 sets the first terminal 161 as the anode and the second terminal 162. IC tag data can be read from the IC tag 165 in the case where is used as a cathode. At this time, the key management box 30 inquires of the IC tag 165 what output the flip-flop circuit 171 performs. Even if the returner connects the cut portion of the conductive member 174 so that the trace of the cut is not known, the flip-flop circuit 171 holds the output of the A port at the H level. Therefore, the IC tag 165 transmits a signal indicating that the A port of the flip-flop circuit 171 is at the H level to the key management box 30. Since the output of the A port of the flip-flop circuit 171 is at the H level, the key management box 30 detects an abnormality that the conductive member 174 has been disconnected while the holder 160 is being taken out.

  In this case, the key management box 30 includes the ID data (authentication data) read by the ID card reading unit 32 from the ID card when the user opens and closes the door 31, and the IC tag data reading means 42 from the IC tag 165. The read IC tag data, the fact that the conductive member 174 has been cut, and the take-out time and return time of the holder 160 are stored in the history storage unit 52 in association with each other. As a result, the history storage unit 52 retains a history of who, when, and which conductive member 174 of the holder 160 has been cut.

  Thereafter, as shown in FIG. 26, the key management box 30 gives an instruction to the IC tag 165 to set the Reset port of the flip-flop circuit 171 to the L level. The IC tag 165 transmits a Reset signal to the flip-flop circuit 171 in accordance with the instruction. When the Reset signal is input to the Reset port, the flip-flop circuit 171 switches the Reset port from the H level to the L level. Then, the flip-flop circuit 171 switches the output of the A port from the H level to the L level. In this state, when the key management box 30 inquires of the IC tag 165 about the output of the flip-flop circuit 171, the IC tag 165 detects that the output of the A port of the flip-flop circuit 171 is L level, and accordingly. Is transmitted to the key management box 30. For this reason, the key management box 30 does not detect that the conductive member 174 of the holder 160 has been cut.

  Therefore, for example, the user causes the ID card reading unit 32 to read the ID card, opens the opening / closing door 31, and rightly takes out the holder 160 with access right from the key management box 30, and the conductive member 174 of the holder 160 taken out. After the mechanical key 1 is removed from the conductive member 174 and the removed key 1 is illegally copied, the removed key 1 is passed through the cut conductive member 174 and the cut portion of the conductive member 174 is connected to the original position. Suppose that When the conductive member 174 is cut, the holder 160 maintains the output even after the output of the A port of the flip-flop circuit 171 is switched from the L level to the H level and the cut portion of the conductive member 174 is connected. is doing.

  In this case, when the user returns the holder 160 to the key management box 30, the controller 44 supplies current to the first terminal 161 of the holder 160 returned from the IC tag data reading means 42. In the holder 160, a current flows from the first terminal 161 to the second terminal 162 via the IC tag 165, and the IC tag data reading means 42 reads the IC tag data. As a result, the controller 44 detects that the holder 160 has been returned.

  Thereafter, when the controller 44 inquires of the IC tag 165 of the returned holder 160 about the output of the flip-flop circuit 171, the controller 44 receives from the IC tag 165 that the output of the flip-flop circuit 171 is at the H level. Thereby, the controller 44 detects that the conductive member 174 of the returned holder 160 is cut while the holder 160 is being taken out. Therefore, the controller 44 adds the IC tag data read from the IC tag 165 of the holder 160 to the ID data read by the ID data reading unit 32, the cutting of the conductive member 174, and the take-out time of the holder 160. The return time is associated and stored in the history storage unit 52.

  As a result, for example, even if the next person who opens the open / close door 31 does not notice the disconnection of the conductive member 174, the key management box 30 determines from the history data in the history storage unit 52 who It can be specified which holder 160 the conductive member 174 has been cut. As described above, according to the key management box 30 and the holder 160 of the present embodiment, it is possible to detect that the conductive member 174 has been cut with respect to the holder 160 removed from the key management box 30, so that the security level can be raised. .

  Then, the key management box 30 abnormally outputs the output of the A port of the flip-flop circuit 171 of the holder 160 while the holder 160 connected to the cut portion of the conductive member 171 is mounted in the holder mounting hole 35. Since the conductive member 171 is reset to the normal state output (L level) where the conductive member 171 is not cut from the H level indicating the state, the conductive member 174 of the conductive member 174 can be replaced without replacing the holder 160 to which the cut portion is connected. Disconnection can continue to be monitored.

<Modification>
In addition, this invention is not limited to the said embodiment, Various application is possible.
(1) For example, in the history storage unit 52, the IC tag data of the holder that detects an abnormality and the door opening / closing time may be associated with the authentication data and stored as abnormality detection information.
(2) For example, in the above embodiment, after the opening / closing door 31 is closed, or after a set time has elapsed since the opening / closing door 31 is opened, the presence or absence of the holder 2 is detected and the abnormality of the holder 2 is examined. After the door lock part 27 permits the opening / closing of the opening / closing door 31, until the opening / closing door 31 is closed, the presence / absence of the holder 2 may be detected to check the abnormality of the holder 2.
(3) For example, in the above embodiment, the ID card is used as an example of an authentication medium to perform personal authentication. However, personal authentication may be performed by fingerprint authentication, vein authentication, face authentication, voiceprint authentication, password input, or the like. .
(4) For example, in the first embodiment, the both end portions 16a and 16b of the conductive member 16 are inserted into the case 15 and the conductive member 61 is attached to the case 15. However, the both end portions 16a and 16b are connected to the third and fourth portions. The case 15 may be insert-molded by disposing the conductive member 16 so as to contact the terminals 13 and 14.
(5) In the fourth embodiment, the locking member 74 is slidably provided. However, as shown in FIG. 27, a metal locking member (an example of a locking portion) 103 is rotatably provided. Also good. The locking member 103 is rotatably held by a metal rotation shaft 104 that is erected in the locking member arrangement hole 102 b of the case 102. The rotating shaft 104 is connected to the second terminal 12 so as to be energized. The engaging member 103 engages the engaging convex piece 103a with the engaging groove 77b by engaging the engaging convex piece 103a with the engaging groove 77b of the engaging member 77 fixed by caulking to one end of the conductive member 76. The combined conductive member 76 is prevented from coming out of the insertion hole 72a. The compression spring 105 constantly urges the locking member 103 to rotate toward the bottom side of the insertion hole 72a, and generates a resistance force when the engagement member 77 is to be pulled out of the insertion hole 72a. In this case, the notch groove 103b is formed in the locking convex piece 103a, and the locking member 103 may be destroyed when an excessive force acts in the direction of pulling the engaging member 77 from the insertion hole 72a. good.
(6) In the fifth embodiment, one pinion 83 is provided in each of the insertion holes 82a and 82b. However, as shown in FIG. 28, a plurality of pinions 83 (two each here) are provided in the insertion holes 82a and 82b. May be provided). In this case, terminals 11, 12, 111, and 112 connected to the pinions 83A to 83D are provided in the case 82, and if the rack 85 is not in contact with all of the pinions 83A to 83D, the terminals 11, 12, 111, and 112 have currents. It is possible to prevent IC tag data from being read. According to this, since the holder 110 cannot be detected unless the rack 85 is arranged at a correct position in contact with the pinions 83A to 83D, an abnormality of the holder 110 can be detected at an early stage.
(7) In the sixth embodiment, the engaging member 97 that is caulked and fixed to one end of the conductive member 96 and the third terminal 93 that is caulked and fixed to the wiring connected to the first terminal 11 and fixed to the case 92 are provided. The conductive member 96 is provided via the IC tag 10 by attaching a caulking member to the connecting portion of the wiring connecting the conductive member 96 and the first terminal 11 and caulking the caulking member. One terminal 11 may be energized. Further, an adhesive may be applied to the contact portion between the engagement member 97 and the third terminal 93 shown in FIG.
(8) For example, when the conductive member connection structure of the fourth to seventh embodiments is applied to the holders 131 and 141 of the eighth and ninth embodiments, the traces of the conductive members 135 and 155 being forcibly pulled out are the holders. 131 and 151 may be left.
(9) For example, the door 31 of the key management box 30 of the eighth and ninth embodiments may be omitted. In this case, a lock means is provided in the holder mounting hole 35 for mounting the holders 131 and 151, personal authentication is performed based on the authentication data read by the ID card reading unit 32, and based on the access right possessed by the person who has succeeded in authentication. It is preferable to release the locking means so that the holders 131 and 151 can be attached and detached.
(10) In the tenth embodiment, the capacitor 169 is used as the operating power supply of the flip-flop circuit 171, but a photon battery may be used instead of the capacitor 169. The capacitor 169 may be charged with a button battery, a solar battery, or the like.

1 Key 2, 71, 81, 91, 101, 110, 121, 131, 151, 160 Holder 3 Main body 10, 165 IC tag 11, 12, 161, 162 First and second terminals (an example of two terminals)
13, 14, 163, 164 Third and fourth terminals (an example of first and second conductive terminals)
16, 124, 135, 155 Conductive member 27 Open / close permission means 30 Key management box 31 Open / close door 32 ID card reading unit 36 Open / close detection means 41 Holder lock means 42, 141 IC tag data reading means 44, 61 Controller (authentication means, open / close Example of permission means, holder presence / absence detection means, abnormality detection information storage means, holder lending information storage means, abnormality warning means, abnormality occurrence storage means)
48 Access right storage unit (access right storage means)
55 Controller (an example of authentication means, opening / closing permission means, holder presence / absence detection means, abnormality detection information storage means, holder rental information storage means, holder lock release means, abnormality warning means)
62 Timer 74, 95, 103 Locking member (an example of a locking part)
83A, 83B Pinion 85 rack (an example of a conductive member)
123 Locking nut member (an example of a locking part)
169 Capacitor (Example of operating power supply)
171 Flip-flop circuit (an example of conductive member disconnection detection means)

Claims (15)

A plurality of holders each having an IC tag having two terminals, wherein a plurality of mechanical keys are attached to a conductive member that connects the two terminals via the IC tag, and each of the plurality of holders is mounted. And a plurality of IC tag data reading means provided in each of the plurality of holder mounting holes for reading IC tag data from the IC tag in contact with the two terminals. And when the conductive member is cut, the IC tag data reading means cannot read the IC tag data from the IC tag, and the key management box detects an abnormality of the holder.
An openable / closable door that is held in the main body so as to be openable and closable and opens the holder mounting hole;
An authentication means for reading the authentication data from the authentication medium and performing personal authentication;
When the authentication unit succeeds in the personal authentication, an open / close permission unit that permits opening / closing of the open / close door;
Access right storage means for associating the authentication data with one or more of the IC tag data and storing an access right for a user to use the one or more of the holders;
A holder presence / absence detection means for causing the plurality of IC tag data reading means to read the IC tag data and detecting the presence / absence of the holder after the opening / closing permission means permits the opening / closing of the door;
The undetectable IC tag data of the holder determined to have no holder presence / absence detecting means is checked against the access right stored in the access right storage means, and the undetectable IC tag data is An abnormality detection information storage unit that stores the authentication data read by the authentication unit when the authentication data is not included in the one or more IC tag data corresponding to the read authentication data. Key management box. In the key management box according to claim 1,
Open / close detecting means for detecting opening / closing of the open / close door;
The holder presence / absence detecting means detects the presence / absence of the holder by causing the plurality of IC tag data reading means to read the IC tag data after the open / close detection means detects the closed state of the door. Key management box. In the key management box according to claim 1 or claim 2,
A holder lending information storage means for storing the IC tag data of the lent holder in association with the lending authentication data read by the authentication means at the lending;
The opening / closing permission means collates the authentication data at return read by the authentication means at the time of returning the holder with the holder lending information storage means, and when the authentication data at return matches the authentication data at lending, A key management box characterized by allowing the opening and closing of the door. In the key management box according to claim 1 or claim 2,
The holder and the holder mounting hole are in a one-to-one relationship,
A holder locking means provided in each of the plurality of holder mounting holes to lock the holder;
And a holder lock releasing means for causing the holder locking means to release the lock of the holder having the access right by a user who has succeeded in the personal authentication when the authentication means has succeeded in personal authentication. Key management box. In the key management box according to any one of claims 1 to 4,
A key management box comprising an abnormality warning means for warning an abnormality when the IC tag data reading means cannot read the IC tag data of a holder to which the user who has succeeded in personal authentication does not have access right . In the key management box according to any one of claims 1 to 5,
The holder is
A first conductive terminal for connecting one end of the conductive member inserted into the holder to one of the two terminals;
A second conductive terminal for connecting the other end of the conductive member inserted into the holder to the other of the two terminals;
The conductive member is disposed on an insertion path inserted into the holder, and when a force in a direction opposite to the insertion direction acts on the conductive member, the conductive member is locked, and the conductive member and the conductive member are locked. A key management box comprising a locking portion for maintaining a contact state with the terminal member for use. In the key management box according to any one of claims 1 to 5,
The holder is
A first conductive terminal for connecting one end of the conductive member inserted into the holder to one of the two terminals;
A second conductive terminal for connecting the other end of the conductive member inserted into the holder to the other of the two terminals;
A fixing portion for fixing one end of the conductive member inserted into the holder;
The other end of the conductive member inserted into the holder is disposed on the insertion path inserted into the holder, and the conductive member is engaged when a force in the direction opposite to the insertion direction acts on the conductive member. A key management box comprising a locking portion that stops and maintains a contact state between the conductive member and the conductive terminal member. In the key management box according to any one of claims 1 to 5,
The holder is
The conductive member is a conductive rack containing an IC tag,
A pair of insertion holes into which both end portions of the conductive member are inserted are formed,
A pair of pinions connected to the two terminals so as to be energized are respectively disposed in the pair of insertion holes so as to rotate only in an insertion direction in which the rack is inserted into the insertion hole,
Both ends of the rack are inserted into the insertion holes so as to mesh the rack with the pinion, and the two terminals are electrically connected through the pinion, the rack, and the IC tag. Key management box to be used. A plurality of holders each having an IC tag having two terminals, wherein a plurality of mechanical keys are attached to a conductive member that connects the two terminals via the IC tag, and each of the plurality of holders is mounted. In a key management box that is provided in each of the plurality of holder mounting holes and is provided in each of the plurality of holder mounting holes, and detects an abnormality of the holder,
The holder has the IC tag arranged in parallel with the conductive member,
The key management box is
An authentication means for reading the authentication data from the authentication medium and performing personal authentication;
An electrode switching control means for causing the IC tag data reading means to alternately switch the electrodes of the two terminals;
When the electrode switching unit causes the IC tag data reading unit to switch the electrodes of the two terminals so that a current flows in the opposite direction to the case where the current flows through the IC tag, the H / V voltage is detected. L voltage determination means;
When the H / L voltage determination means detects the H level voltage, it is determined that the conductive member is not cut, and when the H / L voltage determination means does not detect the H level voltage, the conductivity is determined. An abnormality determining means for determining that the member has been cut;
When the abnormality determining means determines that the conductive member has been cut, the authentication data used for personal authentication by the authentication means and the IC tag read by the IC tag data reading means by passing a current through the IC tag. A key management box comprising storage means for associating tag data with the date and time when it is determined that the conductive member has been cut, and storing it as history data. A plurality of holders each having an IC tag having two terminals, wherein a plurality of mechanical keys are attached to a conductive member that connects the two terminals via the IC tag, and each of the plurality of holders is mounted. In a key management box that is provided in each of the plurality of holder mounting holes and is provided in each of the plurality of holder mounting holes, and detects an abnormality of the holder,
The holder includes a first IC tag and a second IC tag disposed on a circuit that branches from the downstream side of the IC tag and connects to the conductive member.
The key management box is
An authentication means for reading the authentication data from the authentication medium and performing personal authentication;
When the IC tag data reading means reads the IC tag data from the first and second IC tags, it is determined that the holder has not cut the conductive member, and the IC tag data reading means When the IC tag is read from only the first IC tag, an abnormality determining means for determining that the conductive member is cut;
When the abnormality determination unit determines that the conductive member has been cut, the authentication data used by the authentication unit for the personal authentication, and the IC tag data read from the first IC tag by the IC tag data reading unit, And a storage means for associating the date and time when it is determined that the conductive member has been cut and storing it as history data. In the key management box according to claim 9 or claim 10,
An openable / closable door that is held in the main body so as to be openable and closable and opens the holder mounting hole;
An open / close permission unit that permits opening / closing of the open / close door when the authentication unit succeeds in the personal authentication. In the key management box according to any one of claims 1 to 11,
The holder is
An operating power supply for supplying power;
Conductive member cutting detection means that is activated using the power of the operating power supply when removed from the holder mounting hole, changes the output when the conductive member is cut, and holds the changed output; Having
When the holder is returned to the holder mounting hole, the IC tag is queried for the output of the conductive member disconnection detecting means, and when the output of the conductive member disconnection detecting means is changed, the conductive member is The disconnection is detected, and the authentication data read by the authentication means is stored in association with the IC tag data read from the IC tag by the IC tag data reading means and the conductive member being cut. Having an abnormality occurrence storage means for
Key management box featuring. A plurality of holders each having an IC tag having two terminals, wherein a plurality of mechanical keys are attached to a conductive member that connects the two terminals via the IC tag, and each of the plurality of holders is mounted. And a plurality of IC tag data reading means provided in each of the plurality of holder mounting holes for reading IC tag data from the IC tag in contact with the two terminals. In the key management box you have,
The holder is
An operating power supply for supplying power;
Conductive member cutting detection means that is activated using the power of the operating power supply when removed from the holder mounting hole, changes the output when the conductive member is cut, and holds the changed output; Having
An authentication means for reading the authentication data from the authentication medium and performing personal authentication;
When the holder is returned to the holder mounting hole, the IC tag is queried for the output of the conductive member disconnection detecting means, and when the output of the conductive member disconnection detecting means is changed, the conductive member is The disconnection is detected, and the authentication data read by the authentication means is stored in association with the IC tag data read from the IC tag by the IC tag data reading means and the conductive member being cut. Having an abnormality occurrence storage means to perform,
Key management box featuring. In the key management box according to claim 12 or claim 13,
A key management comprising output reset means for resetting the output of the conductive member cutting detection means to the output when the conductive member is not cut while the holder is mounted in the holder mounting hole. box. An IC tag having two terminals, wherein a plurality of mechanical keys are attached to a conductive member that connects the two terminals via the IC tag, and is provided in a key management box In the holder accommodated in the holder mounting hole so that the two terminals are in contact with the IC tag data reading means,
An operating power supply for supplying power;
When the holder is removed from the holder mounting hole, it is activated using the power of the operation power supply, and when the conductive member is cut, the output is changed, and the conductive member cutting detection means for holding the changed output. And a holder characterized by having.

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