JP4870693B2 - Archive management system - Google Patents

Description

  The present invention relates to an archive management system and an archive management method using tags.

  2. Description of the Related Art Conventionally, a library management system is known that uses a wireless tag (IC tag, RFID: Radio Frequency Identification, or simply called Tag) to safely manage documents that require handling. (For example, refer to Patent Document 1).

FIG. 25 is a block diagram showing the configuration of a conventional archive management system. In FIG. 25, the book management system 101 reads the information of the IC tag 103 attached to the book 102 by the IC tag reader 105 installed on the book shelf 104. The read information is written and accumulated in the server 108 via the terminal 107, or statistical processing is performed. In addition, the information written in the server 108 and the statistically processed information can be viewed and confirmed by the client 109. Further, in the archive management system, based on the information read from the IC tag 103, not only can the information on the book 102 with the IC tag 103 pasted be easily confirmed, but also whether or not the book to be browsed is on the bookshelf. Information on the location of the book 102 on the book shelf 104 can also be confirmed.
JP 2005-182352 A

  However, in the book management system according to the above-described prior art (Patent Document 1), after taking out the book 102 from the book shelf 104, information such as how it is handled is obtained, or the book 102 requires attention in handling. When browsing only a predetermined archive room, there is a problem that it is not possible to monitor whether or not it has been taken out of the archive room. In addition, the person who took out the document from the bookshelf (or library) 104, who specified the person who took out the book (or document) 102 to the outside, etc. are completely dealt with when trying to take the document out. There is a problem that it is not possible to prevent the act of taking out.

  In this prior art, the IC tag is assumed to be a passive type having no battery because the IC tag readers are installed on all the bookshelves and only need to read when the books are on the bookshelves. The problem in this case is that the IC tag readers need to be installed on all the bookshelves, and in addition, cable wiring is required from all the IC tag readers via the terminals. Furthermore, there is a problem that it is necessary to continue to supply driving power in order to operate all these IC tag readers so that the IC tag can always be read. However, if this conventional IC tag is an active type equipped with a battery, the battery can be operated by the same operation even when there is no person near the bookshelf or when management is unnecessary. There is a problem that the consumption of the battery is large and the life is shortened.

  The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a library management system and a library management method capable of more reliably and efficiently managing documents. It is in.

  In order to solve the above-described problems, the present invention is a library management system that manages the entry and exit of documents housed in a library, and is a first system that is attached to the document and detects a change in the state of the document. A first tag comprising a detection means and a first transmission / reception means for transmitting and receiving information wirelessly, and when a change in the state of the document is detected by the first detection means, the first tag is attached. First determining means for determining that the document has been taken out from the archive, and photographing means for photographing the periphery of the archive when the first determining means determines that the document has been taken out from the archive. It is a library management system characterized by comprising.

  According to the present invention, in the above invention, the first tag further includes first light emitting means for emitting light according to an instruction from the outside, and the first tag is attached by the first determining means. When it is determined that the document has been taken out of the archive, it comprises a light emission instruction means for transmitting a light emission instruction for causing the first light emission means to emit light to the first tag, and the photographing means includes the first photographing means. The vicinity of the library including the light emission of the light emitting means is photographed.

  According to the present invention, in the above invention, a reception time determination unit that determines whether a reception time of a transmission signal from the first tag has passed a predetermined time or more, and a reception time determination unit that receives the signal from the first tag by the reception time determination unit. And a warning output means for issuing a warning when it is determined that the reception time of the transmission signal has exceeded a predetermined time.

  According to the present invention, in the above invention, a plurality of reading means that are installed outside and inside the archive room and wirelessly transmit and receive information to and from the first tag, and a reading means installed in the archive room, After receiving the transmission signal from the first tag, when the transmission signal from the first tag is received by the reading means installed outside the library room, the document to which the first tag is attached And a third determination unit that determines that the document has been taken out, and the warning output unit issues a warning when the third determination unit determines that the document has been taken out to the outside. To do.

  According to the present invention, in the above invention, the first detection means is any one of a first vibration detection means for detecting vibration and a first light detection means for detecting ambient brightness. Alternatively, both are provided.

  According to the present invention, in the above invention, the electronic device is arranged in a position where the face of a person standing in front of the library and facing away from the shooting direction of the shooting unit is in the shooting field of view of the shooting unit. A mirror is provided.

  In order to solve the above-described problems, the present invention is a library management system that manages the entry and exit of documents housed in a library, and is attached to the door of the library and detects a change in the state of the library door. When a change in the state of the door of the library is detected by the second tag provided with the second detection means that performs, the second tag including the first transmission / reception means that transmits and receives information wirelessly, and the second detection means, A second determination unit that determines that the library door has been opened, and the imaging unit that captures an image of the vicinity of the library when the second determination unit determines that the library door has been opened. This is an archive management system characterized by this.

  In order to solve the above-described problems, the present invention is a library management system that manages the entry and exit of documents housed in a library, and is a first system that is attached to the document and detects a change in the state of the document. A first tag comprising a detection means and a first transmission / reception means for transmitting and receiving information wirelessly, and when a change in the state of the document is detected by the first detection means, the first tag is attached. The first determination means for determining that the document has been taken out from the archive, and the second detection means for detecting a change in the state of the archive door, which is attached to the archive door, transmits and receives information wirelessly. A second determination unit that determines that the library door is opened when a change in the state of the library door is detected by the second tag including the first transmission / reception unit and the second detection unit. And the first Either when it is determined that the document has been taken out from the archive, or when the periphery of the archive is photographed and the door of the archive is determined to have been opened by the second determination means. On one or both sides, the archive management system is characterized by comprising imaging means for imaging the periphery of the archive.

  According to the present invention, in the above invention, the third tag is provided with a third transmitting / receiving means for transmitting and receiving information wirelessly, and is carried by a user who may handle a document stored in the library, A reading unit that is installed indoors and wirelessly transmits and receives information to and from the third tag; and when the reading unit receives a transmission signal from the third tag, the first tag, or When the transmission interval from either one or both of the second tags is shortened while the reading means does not receive the transmission signal from the third tag, the first tag or the second tag Transmission control means for extending the transmission interval from either or both of the tags.

  The present invention is the above invention, comprising a fourth transmission / reception means for wirelessly transmitting / receiving information, wherein the fourth tag is attached to a key that locks the door of the library, and is installed in the library room. Reading means for wirelessly transmitting / receiving information to / from a tag, and when the reading means receives a transmission signal from the fourth tag, either the first tag or the second tag Or, when the reading means does not receive a transmission signal from the third tag, either the first tag or the second tag, or both And a transmission control means for lengthening the transmission interval.

  The present invention is characterized in that, in the above invention, the photographing means shortens the photographing interval around the archive when the reading means receives a transmission signal from the third tag or the fourth tag. To do.

  In order to solve the above-described problems, the present invention is a library management system that manages the entry and exit of documents stored in a library, and is a detection unit that is attached to the document and detects a change in the state of the document. A tag comprising a light emitting means for emitting light in accordance with an instruction from the outside, a transmission / reception means for transmitting and receiving information wirelessly, a designation means for designating a search document from among documents stored in a library, and the designation means When a search document is designated, a light emission instruction means for transmitting a light emission instruction for causing the light emission means of the tag attached to the search document to emit light to the tag and causing the light emission means to emit light, and the detection means Determining means for determining that the search document has been taken out of the archive when a change in state of the search document to which the tag emitted by the light emitting means is attached is detected; If the determination means determines that the document has been taken out from the archive, it sends a turn-off instruction for turning off the light emitting means of the tag attached to the search document to the tag, and turns off the light emitting means. It is a library management system characterized by comprising a turn-off instruction means.

  In order to solve the above-described problems, the present invention provides a library management method for managing the entry and exit of documents stored in a library, wherein the state of the document is changed by a first tag attached to the document. Detecting, when detecting a change in the state of the document, determining that the document has been removed from the archive; and determining that the document has been removed from the archive; And a step of recording the photographed photographed image.

  In order to solve the above-described problems, the present invention provides a library management method for managing the entry and exit of a document stored in a library, wherein the library door is provided by a second tag attached to the library door. Detecting a change in the state of the archive, detecting a change in the state of the door of the library, determining that the door of the library has been opened, and determining that the door of the library has been opened, The archive management method includes a step of photographing a periphery and a step of recording the photographed photographed image.

  In order to solve the above-described problem, the present invention is a library management method for managing the access of documents stored in a library, and a step of designating a search document from among documents stored in the library A first tag that is attached to the document and that detects a change in the state of the document; a first tag that includes a first transmission and reception unit that wirelessly transmits and receives information; and the first detection unit. When a change in the state of the document is detected, first determination means for determining that the document to which the first tag is attached has been taken out from the archive; and a door of the archive that is attached to the archive door A second tag having a second detecting means for detecting a change in the state of the first tag, a first transmitting / receiving means for transmitting and receiving information wirelessly, and a change in the state of the door of the library is detected by the second detecting means. When said Second determining means for determining that the door of the warehouse has been opened, and when the first determining means determines that the document has been taken out of the archive, or shooting the periphery of the archive, An archive management method comprising: an imaging unit that captures an image of the periphery of the library in one or both of cases where the second determination unit determines that the library door is opened.

  In order to solve the above-described problems, the present invention includes a detection unit that is attached to each document housed in a library and detects a change in the state of the document, and a light emitting unit that emits light in response to an instruction from the outside. A library management method for managing the entry and exit of documents stored in a library using a tag, the step of specifying a search document from among documents stored in the library, and the search document is specified Then, the step of transmitting a light emission instruction for causing the light emitting means of the tag attached to the search document to emit light to the tag and causing the light emitting means to emit light, and the light detecting means by the tag detecting means Determining that the search document has been removed from the archive when a change in state of the search document to which the light emitting tag is attached is detected; and that the search document has been removed from the archive And a step of transmitting a turn-off instruction for turning off the light emitting means of the tag attached to the search document to the tag and turning off the light emitting means. It is.

  According to this invention, the first tag is attached to the document, the change in the state of the document when the user takes out the document is detected by the first tag, and when the change in the state of the document is detected, the document is removed from the archive. It is determined that it has been removed, and the area around the archive is photographed and recorded. Therefore, it is possible to more accurately detect that the document has been taken out, photograph the taken-out person, and specify the person later.

  Further, according to the present invention, when it is determined that the document to which the first tag is attached has been taken out from the archive, the first light emitting means provided in the first tag is caused to emit light, and the first light emission is performed. Take a picture of the area around the library, including the lighting status of the instrument. Therefore, since the light emitted from the light emitting means is reflected in the photographed image, it can be detected more accurately that the document has been taken out from the archive, the taken person can be photographed, and the person can be identified later. Is possible.

  In addition, according to the present invention, when it is determined that the reception time of the transmission signal from the first tag has exceeded a predetermined time, a warning is issued. Accordingly, even when the image is taken out from the archive and left unattended, or taken out to the outside, it is possible to execute an appropriate countermeasure by issuing a warning.

  Further, according to the present invention, a plurality of reading means are installed inside and outside the library room and a transmission signal from the first tag is received to issue a warning when it is determined that the document has been taken outside. Therefore, it is possible to detect the taking out of the document, and it is possible to take appropriate measures by issuing a warning.

  According to the invention, the first detection means is one or both of the first vibration detection means for detecting vibration and the first light detection means for detecting ambient brightness. Therefore, taking out of the document can be detected by either one or both of vibration and change in brightness.

  Further, according to the present invention, the mirror is arranged at the position where the face of the person standing on the front of the archive and turning his back to the shooting direction is reflected, and entering the shooting field of view. Therefore, it is possible to photograph the face of a person who opens the door of the library or takes out a document, and it becomes possible to easily identify the person later.

  According to the present invention, the second tag is attached to the library door, the change in the status of the library door when the user opens the library door is detected by the second tag, and the status of the library door is changed. Is detected, the library door is opened to take out the document, and the area around the library is photographed and recorded. Accordingly, it is possible to more accurately detect that the door of the archive is opened, and it is possible to photograph the person who has accessed the archive, and to identify the person later.

  In addition, according to the present invention, when a change in the state of the document is detected by the first tag attached to the document and it is determined that the document has been taken out from the archive, or the second tag attached to the door of the archive A change in the state of the library door is detected by the determining means, and the periphery of the library is photographed in one or both of the cases where it is determined that the library door is opened. Therefore, it is possible to more accurately detect that the document has been removed, to detect more accurately that the archive door has been opened, and to photograph a person who has accessed the archive or document. Thus, it becomes possible to specify a person later.

  Further, according to the present invention, a third tag is carried by a user who may handle a document stored in the library, and a transmission signal from the third tag is received by the reading means in the library room. If the reading means does not receive a transmission signal from the third tag while shortening the transmission interval from either the first tag or the second tag or both, The transmission interval from either one or both of the first tag and the second tag is increased. Therefore, when people do not enter the library room, the power consumption of the battery can be reduced, and when a person enters the library room, the door of the library, the removal of the book, etc. can be detected more accurately. be able to.

  Further, according to the present invention, when the fourth tag is attached to the key for locking the door of the library, and the transmission signal from the fourth tag is received by the reading means in the library room, the first tag or When the reading means does not receive the transmission signal from the third tag while shortening the transmission interval from one or both of the second tags, the first tag or the second tag The transmission interval from either one or both is increased. Therefore, the battery power consumption can be reduced until the library door is opened with the key, and if you enter the library room with the key, the library door and books can be removed more accurately. Can be detected.

  In addition, according to the present invention, when a transmission signal from the third tag or the fourth tag is received, the frequency of shooting around the library is increased. Therefore, by automatically increasing the photographing frequency when a person enters the archive room, the face of the person who opens the archive door or takes out the document can be photographed more reliably.

  Further, according to the present invention, when a search document is designated from among documents stored in the library, the light emitting means of the tag attached to the search document is caused to emit light, and the document is taken out from the library. If it is determined that the tag has been hit, the light emitting means of the tag attached to the search document is turned off. Therefore, the user can easily visually recognize the storage location of the desired search document.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

A. First Embodiment FIG. 1 is a schematic diagram showing a configuration of a library management system according to an embodiment of the present invention. In the first embodiment, a library management system in the case of a library with a door will be described. In the figure, a document 1 is bound in a binder and stored in a library 2. The library 2 is provided with a door 2a. Each document (binder) 1 has an active wireless tag (RFID: Radio Frequency Identification: hereinafter referred to as a tag) 3 that has a built-in battery and transmits radio waves by itself. A similar tag 3 is also attached to the inside of the door 2a of the library 2 that stores many documents.

The tag 3 includes a light emitting element (LED: Light Emitting Diode) 4 that emits light, a light receiving element (PD: Photo Diode) 5 that detects brightness, and a reading device (reader) of a receiver, which will be described later, in addition to a normal wireless function. ) (The tag has a receiving function for receiving a transmission signal from the reader), the vibration sensor 6 for detecting vibration is mounted. The tag 3 is configured to transmit a signal including information on brightness detected by the light receiving element 5 and information on vibration detected by the vibration sensor 6 as tag information.

  Next, the reading device 10 receives tag information from the tag 3 and transmits it to the management device 20. The reading device 10 can not only read the tag information but also transmit an instruction for causing the light emitting element 4 mounted on the tag 3 to emit light, for example. The reading device 10 is installed in various places such as a corridor in the building, a staircase, and an entrance to the outside of the building, in addition to the vicinity of the library 2 where the reading of the document 1 is permitted, if necessary. Also good. Further, the web camera 11 is installed in various places including a room with the library 2, images the room including the library 2, and transmits the captured image to the management apparatus 20.

  Next, the management device 20 determines the status of the document 1 stored in the library 2 according to the tag information from the reading device. More specifically, the management device 20 determines whether or not the library 2 is in accordance with the tag information from the presence / absence of vibration by the vibration sensor 6 of the tag 3 attached to the inside of the door 2a of the library 2 and the brightness information by the light receiving element 5. The door 2a is opened, or the document 1 is taken out of the library room from the tag information transmitted from the tag 3 attached to the document 1 by the reader 10 installed in the corridor or stairs outside the library room. Determine if you did. Further, the management device 20 records tag information in the server device 30 based on the status of the library 2 and the document 1, and if necessary, images taken by the web cameras 11 installed in various places including the library room. The data is stored in the server device 30 or a warning signal is issued.

In particular, when the information on the vibration of the tag 3 attached to the document 1 is received by the reading device 10 and the document 1 is taken out from the library 2, the web camera 11 photographs the library 2. In addition, by installing a mirror (curve mirror) 12 on the upper side of the library 2 and photographing the reflection on the mirror 12 by the web camera 11, the front of the person who took out the document 1 from the library 2 is also left in the image. Can be done.

  FIG. 1 shows a situation where a person opens one door 2a of the library 2 and tries to take out the document 1. At this time, the tag 3 affixed to the back side of the door 2a of the library 2 detects the brightness of the library room with the light receiving element 5 mounted thereon, and also detects vibration when the door 2a is opened as a vibration sensor. 6 detects. When the tag 3 transmits these pieces of information as tag information, the reading device 10 that has received the tag information supplies the tag information to the management device 20. The management device 20 recognizes that the brightness is detected by the light receiving element 5 and the vibration is detected by the vibration sensor 6 from the tag information from the tag 3 attached to the back side of the door 2a of the library 2. It is determined that the door 2a of the library 2 has been opened. From the determination result, the management device 20 records the tag information received by the reading device 10 in the server device 30 and also records in the server device 30 an image taken by the web camera 11 installed in the library room. By doing so, it is possible to confirm who opened the door 2a of the library 2 later.

  When there is only one web camera 11 in the library room, it is possible to confirm a two-dimensional position such as which library 2 door 2a is opened or which document 1 is located. This two-dimensional position means that the position where the web camera 11 is installed and the shooting direction are determined, or even if the direction of the web camera 11 to be shot can be changed, the direction can be grasped. For example, this means that which point on the plane perpendicular to the shooting direction from the web camera 11 is the position of the document 1 is obtained as coordinates.

  FIG. 2 is a perspective view of the archive room for explaining the relationship between the number of web cameras 11 and the position specification in the first embodiment. In FIG. 2, two web cameras 11-1 and 11-2 are installed at both corners on the near side of the ceiling of the library room. Attention is paid to one of the two web cameras 11-1 and 11-2. For example, the web camera 11-1 captures a direction toward the library 2 installed on the back wall of the library room. At this time, the entire library 2 installed on the wall is in the visual field of the web camera 11-1. Then, a certain point in the archive is set as a target coordinate point. This target coordinate point is the position where the web camera 11-1 is installed (in FIG. 2, one corner on the front side in the ceiling of the library room) and the direction of shooting (direction to the library 2 installed on the back wall) Is accurately determined as one point on a plane on the captured image of the web camera 11-1. This is a two-dimensional position specification by one web camera.

  Moreover, if the mirror (curve mirror) 12 shown in FIG. 1 is installed in the upper part of the library 2, the person who turns his back to the direction which the web camera 11-1 image | photographs (usually in the library 2) Since the person who tries to take out the document 1 stands in the direction facing the library 2, the face of the person who turns his back toward the web camera 11-1 is reflected in the mirror 12. Therefore, according to the image photographed by the web camera 11-1, the face from the front side of the person reflected in the mirror 12 can also be confirmed.

  Further, when two or more web cameras can be installed in the archive room, the open door 2a of the archive 2, the position of the document 1 to be taken out, and the like can be grasped as a three-dimensional position. Given the position of each of the two webcams to be photographed and the direction in which they are to be photographed, the direction of the object from the position of the object in the image photographed by one of the webcams You can identify if there is a thing. Therefore, since there are things that are targeted at the intersections where the straight lines extend in the specified direction from the already known positions of the two webcams, the position of the target could be specified in three dimensions It will be.

The relationship between the number of web cameras and the position specification will be described in more detail with reference to FIG. In FIG. 2, two web cameras 11-1 and 11-2 are installed at both corners on the front side of the ceiling of the library room. In the above description, only the illustrated web camera 11-1 is used, but here, a case where both the two web cameras 11-1 and 11-2 are used will be described. As the coordinate origin (X ₀ , Y ₀ , Z ₀ ), the X axis, the Y axis, and the Z axis shown in FIG. 2, the position of the web camera 11-1 is (Xc1, Yc1, Zc1) = (0, Yc1, In Zc1), the position of the web camera 11-2 is (Xc2, Yc2, Zc2) = (0, 0, Zc2).

Each of the web cameras 11-1 and 11-2 has a field of view including the entire library 2, a field of view of the web camera 11-1, and a field of view of the web camera 11-2. The direction in which one web camera 11-1 captures is an angle of -α _c1 from the X axis to the Y axis, and the angle of −β _c1 from the X axis to the Z axis, and the direction in which the other web camera 11-2 captures is , An angle of α _c2 from the X axis to the Y axis, and an angle of −β _c2 from the X axis to the Z axis. In these fields of view, the target coordinate point, which is one point in the library, is two-dimensionally displayed on the captured image IMG1 captured by the web camera 11-1 and the captured image IMG2 captured by the web camera 11-2. Can be identified. Here, from the coordinates where each of the web cameras 11-1 and 11-2 is installed, a photographed image is placed on a plane having a perpendicular line facing the camera direction, and a straight line is drawn to the position specified on those two dimensions. Pull to extend.

An intersection where the two straight lines from the web camera 11-1 and the web camera 11-2 intersect is obtained as the target coordinate point T. That is, when there are two or more web cameras installed and the same target (target) is photographed in each, the position (target coordinate point) of the target can be specified three-dimensionally. In FIG. 2, it is assumed that the target coordinate point is (Xt, Yt, Zt). As shown in the upper left of FIG. 2, when the XY plane is viewed from the Z-axis direction directly above, the angle of −α _c1 from the position (0, Yc1, Zc1) of the web camera 11-1 to the Y-axis from the X-axis. and the dashed line L1, intersect at a position (0,0, Zc2) and dashed line L2 of the angle alpha _c2 to Y-axis from the X axis from the target coordinate point webcam 11-2 (Xt, Yt, Zt) .

In addition, in FIG. 2, since two web cameras 11-1 and 11-2 are installed in both front corners of the ceiling of the library room, a relatively simple situation is assumed. Since the heights of the two webcams that match the height of the ceiling are the same (Zc1 = Zc2), and the target coordinate points captured by both webcams 11-1 and 11-2 are the same, The angle formed by the broken line L1 and the one-dot broken line L2 indicating the direction of each web camera in the X-axis direction to the Z-axis direction also satisfies the same relationship (−β _c1 = −β _c2 ).

  Next, when the person who opened the door 2 a of the library 2 takes out the document 1 from the library 2 with the door 2 a opened, the vibration sensor 6 mounted on the tag 3 attached to the document 1 is connected to the document 1. Detects vibration when removed. The tag 3 attached to the document 1 transmits a signal including information of the vibration sensor 6 that has detected the vibration, and the reading device 10 receives the tag information. When the tag information is supplied from the reading device 10 to the management device 20, the management device 20 determines that the document 1 has been taken out from the library 2. The management device 20 instructs the reading device 10 to cause the light emitting element 4 mounted on the tag 3 attached to the document 1 to emit light.

The reading device 10 transmits a signal including an instruction for causing the light emitting element 4 to emit light to the tag 3. When the tag 3 receives this instruction signal, the light emitting element 4 is caused to emit light. Simultaneously with the light emission of the light emitting element 4 of the tag 3 attached to the document 1, the management device 20 causes the server device 30 to record the photographed image photographed by the web camera 11. The photographed image shows the document 1 with the tag 3 emitting light from the light emitting element 4. As a result, the recorded image and the information of the tag 3 instructed to emit light from the light emitting element 4 coincide with each other, so which document (the light emitted from the light emitting element of the attached tag) 1 is taken out from the library 2. It can be surely identified.

  Regarding the point at which the light emitting element 4 mounted on the tag 3 attached to the document 1 emits light, the image processing for specifying the target archive 2 or the document 1 to be browsed in the photographed image of the web camera 11 for photographing described above. It has the effect of making handling very easy. That is, it is very simple to implement a process that identifies and captures light (emission color) of a certain wavelength used in the light emission of the light emitting element 4 in the photographed image, so that the library 2 that is the actual target can be obtained very easily. In addition, the position of the document 1 can be grasped in the captured image. Further, instead of performing image processing called the color recognition processing, it is also possible to simply shoot by attaching a filter having a high transmittance to only the emission wavelength of the light emitting element 4 to the lens of the web camera 11 to be photographed. It is done. In a photographed image taken with a filter having a high transmittance only for such a specific wavelength, the light emitting element emitting light of that wavelength is remarkably bright even in the image without performing special image processing. Since it is photographed as a point, it can be recognized as a coordinate position on the image as it is.

  Next, following the usage status shown in FIG. 1 (where the library door is opened and the document is taken out), the status where the document 1 taken out from the library 2 is browsed and then the document 1 is handled will be described. FIG. 3 is a schematic diagram for explaining a situation in which the document 1 taken out from the library 2 is browsed and the document 1 is handled thereafter. In FIG. 3, reading devices 10 a to 10 c are installed in a library room or outside the library room. The reading devices 10 a to 10 c receive a signal transmitted from the tag 3 and supply tag information from the tag 3 to the management device 20. Further, when the reading devices 10 a to 10 c receive a light emission instruction of the light emitting element 4 mounted on the tag 3 in accordance with an instruction from the management device 20, a signal including the instruction is transmitted to the tag 3. A web camera 11 for shooting is installed in the library room. The web camera 11 supplies the captured image to the management device 20.

  Next, the management device 20 that receives and processes various data supplied from the above-described reading devices 10a to 10c and the web camera 11 will be described. The processing of the management apparatus 20 in the archive management system according to the first embodiment includes monitoring the status of the archive 2 and the document 1 and warning for preventing the document 1 from being taken out. The situation monitoring is performed by receiving the signal of the tag 3 attached to the inside of the door 2a of the library 2 by the reading devices 10a to 10c, thereby determining whether the door 2a of the library 2 is opened or closed, or storing it in the library 2. The tag information from the tag 3 attached to the document 1 being received is received by the readers 10a to 10c, the removal of the document 1 from the library 2 is determined based on the received tag information, and the light emitting element of the tag 3 Control to instruct related devices is also performed, such as instructing to emit light 4 and taking an image with the web camera 11 and recording it in the server device 30.

  In FIG. 3, the periphery of the tag 3 attached to the document 1 stored in the library 2 is dark, and the document 3 is not moved and the tag 3 does not vibrate. Furthermore, even if a signal is periodically transmitted from the tag 3 and the reader 10a receives the signal, the door 2a of the library 2 blocks between the tag 3 and the reader 10a, so that the reader 10a The electric field strength of the received signal is weak. As described above, when the signal from the tag 3 is not received by the reading device 10a or is received, the light receiving element 5 mounted on the tag 3 does not detect the brightness or the vibration sensor 6 Becomes tag information indicating that vibration is not detected, and the electric field strength of the received signal is also weak. In such a case, it can be determined that the document 1 is stored in the library 2.

  Next, a situation where the document 1 is taken out from the library 2 and the document 1 is being browsed in the library room will be described. In this case, unlike the case where the document 1 is stored in the library 2, the signal transmitted from the tag 3 attached to the document 1 includes the brightness around the tag 3 (such as the brightness of the lighting in the library room). Since there is external light from the window), vibration is detected by the vibration sensor 6 because the hand touches even on the desk when viewing the document 1. Further, since the signal transmitted from the tag 3 is not blocked by the door 2a of the library 2, the electric field strength of the signal received by the reader 10a (or 10b) is strong. Therefore, if the signal transmitted from the tag 3 includes tag information indicating that brightness or vibration has been detected, or if the signal received by the reader 10a (or 10b) is strong, the library 2 It can be determined that the document 1 is taken out and the document 1 is being browsed in the archive room.

  When the document 1 is moved from the state in which the document 1 is stored in the library 2 to the state in which the document 1 is taken out from the library 2, the photographed image taken by the photographing web camera 11 installed in the library room is displayed. Record in server device 30. On the other hand, when the document 1 taken out from the library 2 and viewed is cleared and moved to the state stored in the library 2, the image taken by the web camera 11 is recorded in the server device 30. To. In this way, it is recorded as a record that who has taken out the document 1 from the archive 2 from the recorded photographed image and then returned the same document 1 to the original archive 2, so that the recorded photographed later Can be confirmed with images.

  Further, even when the browsing time is longer than a predetermined time, a photographed image obtained by photographing the situation in the archive room with the photographing web camera 11 may be recorded in the server device 30. In addition to the library room, when the reader 10c is installed outside the library room, signals transmitted from the tag 3 attached to a document 1 are sequentially read by the reader 10a (or the library room). 10b), and when it is received by the reading device 10c outside the library room, it is possible to grasp that the document 1 has been taken out from the library room. A warning signal may be issued when 1 is taken out.

  In addition, the warning of danger is determined by judging the access act of browsing the document 1 taken out from the library 2 for a long time from the elapsed time when the signal from the tag 3 attached to the document 1 is received. Or the reader 10c installed outside the library room receives a signal from the tag 3 attached to the document 1, and determines that the document 1 has been taken out of the library room and issues a warning. Or to record this situation. In the warning of the danger of taking the document 1 out of the library room, the tag attached to the document 1 by the reader 10c installed at the entrance of the building or the exit is also taken out from the building with the library room to the outside. This can be determined by receiving a signal from 3.

  Next, the server device 30 is responsible for recording at the time of access related to each document 1. The server device 30 includes, as data recorded at the time of document access, date and time, ID of a tag attached to the inside of the door 2a of the library 2, and tag information included in a signal from the tag 3 of the door 2a of the library 2 (Brightness information detected by the light receiving element 5, presence / absence of vibration detected by the vibration sensor 6), electric field strength of signals when received by the readers 10a to 10c, ID of the tag 3 attached to the document 1, Tag information (brightness information detected by the light receiving element, presence / absence of vibration detected by the vibration sensor) included in the signal from the tag 3 of the document 1, and an electric field of the signal when received by the reading devices 10a to 10c The strength, the ID of the readers 10a to 10c for specifying the installation locations of the readers 10a to 10c, and the image taken by the web camera 11 can be cited. As described above, in the ID, the ID for identifying the tag attached to the document 1 or the door 2a and the reading devices 10a to 10c are identified, that is, the installation location of the reading devices 10a to 10c is specified. There is an ID for. These data are supplied from the management device 20 and are recorded in the server device 30 as data when the document 1 is accessed. Further, the server device 30 may be supplied to the management device 20 as confirmation of recorded (elapsed) data. The elapsed time when browsing a certain document is also used to determine whether the browsing time exceeds a predetermined time with reference to data recorded in the server device 30.

  In the above description, the technique for specifically managing the archive has been described for the usage scene (FIGS. 1 and 3). From here, the detailed configuration and operation of the tag (and reading device) used in the archive management system will be described.

  FIG. 4 is a block diagram showing a configuration of a tag (and a reading device) of the archive management system according to the first embodiment. In FIG. 4, a tag 3 includes a transmission / reception antenna 3-1 for transmitting and receiving signals by radio waves, a transmission unit 3-2 for transmitting signals to handle those signals, and reception for receiving signals. Part 3-3 is provided. The tag 3 is connected to the transmission / reception antenna 3-1, the transmission unit 3-2, and the reception unit 3-3, and supplies a signal from the transmission unit 3-2 to the transmission / reception antenna 3-1, while receiving the received signal. Is provided from the transmitting / receiving antenna 3-1 to the receiving unit 3-3. The control unit 3-5 controls the operation of supplying the transmission signal generated by the transmission unit 3-2 to the transmission / reception antenna 3-1, while being received by the transmission / reception antenna 3-1, and processed by the reception unit 3-3. The signal is processed, and if necessary, new operation control of the tag 3 is performed.

  Further, as described above, the tag 3 includes the light emitting element (LED) 4, the light receiving element (PD) 5 for detecting brightness, and the vibration sensor 6 for detecting vibration. When the light emitting element 4 receives a signal including a light emission instruction from the reading device 10, the light emitting element 4 emits light according to control by the control unit 3-5. The light receiving element 5 detects the brightness around the tag 3. Thus, when the tag 3 is moved from a dark place to a bright place, the light receiving element 3 notifies the control unit 3-5 that the brightness has been detected. With this as a trigger, the control unit 3-5 can cause the transmission unit 3-2 to transmit a signal including information on the detected brightness.

  Similarly, the vibration sensor 6 detects whether the object (document 1, door 2a) to which the tag 3 is attached is stationary or moved. Thereby, when the object with the tag 3 is moved, the vibration sensor 6 notifies the control unit 3-5 that the vibration has been detected. With this as a trigger, the control unit 3-5 can cause the transmission unit 3-2 to transmit a signal including information on which vibration has been detected. The light emitting element 4, the light receiving element 5, and the vibration sensor 6 do not necessarily have to be mounted, and it is sufficient that at least one is mounted. The tag 3 is an identifier (ID) 3-6 for identifying each tag 3, and since it is an active tag, it can be transmitted by itself or a battery 3-7 serving as a drive power source for performing other operations. I have. The tag ID 3-6 is included in the information of the signal transmitted by the tag 3. The battery 3-7 supplies power to the transmission unit 3-2, the reception unit 3-3, the control unit 3-5, and the light emitting element 4.

  Next, the reading device 10 will be described. The reading device 10 includes a receiving antenna 10-1 for receiving a signal transmitted from the tag 3, and a receiving unit 10-2 for processing the received signal. Information included in the reception signal processed by the reception unit 10-2 is supplied to the control unit 10-3. Among these, the control unit 10-3 supplies necessary information to the management apparatus 20 via the external connection unit 10-4. In addition, the control unit 10-3 interprets an instruction from the management apparatus 20 supplied via the external connection unit 10-4 and supplies necessary information to the transmission unit 10-5. The transmission unit 10-5 generates a transmission signal and transmits it to the tag 3 via the transmission antenna 10-6. For example, an instruction to emit light from the light emitting element 4 mounted on the tag 3 is transmitted. The power supply unit 10-7 supplies power to each unit of the reading apparatus 10, that is, the control unit 10-3, the reception unit 10-2, the transmission unit 10-5, and the external connection unit 10-4.

  Next, radio signals transmitted and received between the tag 3 and the reading device 10 will be described. As shown in FIG. 4, the radio signal S1 transmitted from the tag 3 includes “Preamble”, “ID-Tag”, “PD (light receiving element) brightness”, “vibration”, “LED”, “ FCS (Frame Check Sequence) ". “Preamble” indicates the beginning or start of a signal to be transmitted when the tag 3 transmits a signal wirelessly. When the reader 10 receives the signal, the “preamble” is confirmed. This is for reading out information contained in the subsequent signals. Usually, “0” and “1” are combined to form a structure according to a predetermined pattern (fixed length).

  Note that the configuration of the reading device 10 shown in FIG. 4 is merely an example, and as another configuration example, the transmission / reception antenna of the reading device 10 is integrated as in the tag configuration shown in FIG. It is good also as a structure which added.

  Next, “ID-Tag” is an identifier (ID) for identifying each tag 3. In order to distinguish from the ID of the reading device 10 to be described later, “ID-Tag” is used here. However, in general, the tag 3 needs to be identified more frequently than the reading device 10, and is important. For this reason, it is often called simply ID. In the archive management system, the document 1 to which the tag 3 is attached by this ID, the archive 2 and the like are distinguished and recognized. “PD brightness” indicates whether the periphery of the tag 3 is dark / (how much) detected by the light receiving element 5, and indicates the state of “0” / “1” (or brightness value). Take. The reading device 10 receives this information included in the signal transmitted from the tag 3 and grasps whether the surroundings of the document 1 stored in the library 2 and the inside of the library 2 are dark / (how bright). can do.

  “Vibration” indicates the vibration (movement) transmitted from the object to which the tag 3 is attached, detected by the vibration sensor, and takes one of the states “1” (vibration) / “0” (no vibration). . “LED” indicates whether the light emitting element mounted on the tag emits light or not, and “1” / “0” (or, for example, if the light emitting element changes its emission color to three colors) , Red emission is “11”, blue “10”, green “01”, and no emission is “00”). The reader 10 confirms whether or not the light emitting element 4 of the tag 3 emits light (or what color it emits light) based on the information of the “LED” included in the signal transmitted from the tag 3. To do.

  Note that the vibration sensor 6, the light receiving element (PD) 5, and the light emitting element (LED) 4 do not have to be mounted on the tag as described above, and what kind of archive management system the tag is applied to. Necessary functions mounted on the tag differ depending on the specifications. If the vibration sensor 6, the light receiving element 5, or the light emitting element 4 is unnecessary, the “vibration”, “PD brightness”, and “LED” areas in the radio signal can be eliminated. Alternatively, instead of eliminating these areas, the values of “vibration”, “PD brightness”, and “LED” are set to “0” / “00” or indefinite (on the reading device or management device side) Ignoring the value of the target area in (1).

  Finally, “FCS” is error detection data for confirming whether or not there is a data error in the subsequent signals from the preamble. Generally, CRC (Cyclic Redundancy Check) is used for “FSC”. The reading device 10 determines that the signal can be received without error if the CRC value obtained from the subsequent signals is the same from the “FCS” and “preamble” sent at the time of reception. On the other hand, when the signal from the tag 3 is received and the “FCS” included in the received signal is different from the calculated CRC, it is determined that there is an error in the received data, and the received signal is discarded. To do.

  The radio signal S2 transmitted from the reading device 10 includes “preamble”, “ID-Reader”, “ID-Tag”, “command”, and “FCS”. The “preamble” has the same function as the “preamble” of the transmission signal from the tag 3 described above, and when the tag 3 receives the radio signal from the reader 10, the “preamble” indicates the beginning or the start of the received signal. This is to enable the tag 3 to read the information included in the signals that follow after this. “ID-Reader” is an identifier (ID) of a reading device for the tag 3 to identify and identify the reading device 10 that has transmitted the radio signal. “ID-Reader” so that it can be distinguished from “ID-Tag (generally, tags are more frequently used than readers and simply called IDs)” following the ID (ID-Reader) of the reader 10. It is said. The “ID-Reader” is used to identify which one of the plurality of reading devices 10 when supplying information such as the signal of the tag 3 received by the reading device 10 to the management device 20. Is done.

  “ID-Reader” is followed by “ID-Tag”, which is the same as the identifier (ID) of the tag 3 described above, and for which tag 3 the subsequent command is a command. Used to identify The command will be described later. For example, the command is for causing the light emitting element 4 mounted on the tag 3 attached to the library 2 or the document 1 to emit light. This command has a more basic purpose. For example, when knowing whether the document 1 to be viewed is in the library 2 with the door 2a opened, a file name (document name) is assigned to the tag 3 attached to the document 1. It is also used for designating, that is, designating the ID (ID-Tag) of the tag 3 attached to the document and causing the light emitting element 4 of the tag 3 to emit light. The last “FCS” is the same as that of the tag 3 described above, and is information for detecting an error on the tag 3 side of the signal transmitted from the reading device 10. If the tag 3 determines that there is an error in the signal from the reading device 10 by this “FCS”, the received command is ignored.

Next, the operation according to the first embodiment will be described.
FIG. 5 is a flowchart for explaining the operation when the light receiving element 5 mounted on the tag 3 is used according to the first embodiment. In this case, it is assumed that the document 1 is stored in the library 2 and the door 2a of the library 2 is closed.

  The tag 3 attached to the document 1 is in a standby state in which transmission is stopped in a situation where it is stored in the library (step Sa1). In this standby state, the light receiving element 5 mounted on the tag 3 detects (condition determination) whether the periphery of the tag 3 is dark or bright (step Sa2). If the door 2a of the library is closed, the periphery of the tag 3 remains dark (NO in step Sa2), and the standby state in which transmission is stopped is continued. On the other hand, when the door 2a of the library 2 is opened, the light receiving element 5 of the tag 3 detects the brightness of the outside of the library room and the light entering from the window (YES in step Sa2). A signal including the detected information is transmitted (step Sa3).

  The reading device 10 receives a signal including information on the brightness detected by the tag 3 (step Sa4). Next, the reading device 10 identifies which tag 3 is a signal transmitted from the ID included in the signal, and emits the light emitting element 4 mounted on the tag 3 to the identified tag 3. (Step Sa5).

  In tag 3, it is determined whether or not the light emission command is received (step Sa6). When the target tag 3 does not receive the light emission command (NO in step Sa6), as described above, the tag 3 determines whether the light receiving element 5 detects brightness, and the light receiving element 5 If the brightness is detected, a signal including information for detecting the brightness is transmitted again. On the other hand, when the target tag 3 receives the light emission command (YES in step Sa6), the tag 3 causes the light emitting element 4 to emit light for a predetermined short time according to the light emission command (step Sa7).

  Further, the web camera 11 takes a picture of the library at the same timing as when the tag 3 is emitting light (step Sa8). The presence of the tag 3 of the light emitting element 4 emitting light is confirmed from the image photographed by the web camera 11 (step Sa9). Thereby, the document 1 to which the tag 3 of the light emitting element 4 that emits light is attached can be specified by the ID of the tag 3 by the photographed image. You can know if you handled Document 1. The management device 20 registers information related to the corresponding tag 3, the document 1 to which the tag 3 is attached, a photographed image, and the like in the server device 30 (step Sa10). Note that it is also possible to register who has handled which document (identified from the ID of the tag 3) in the server device 30 by performing image recognition on the captured image and identifying a person.

  Moreover, when the door 2a of the library 2 is opened, the light emitting element 4 of the tag 3 attached to the inside of the door 2a of the library 2 may be caused to emit light. In this case, the web camera 11 is photographing the light emission of the light emitting element 4 of the tag 3 attached to the inside of the door 2 a of the library 2. Therefore, as described above, there is an effect that image processing for specifying the position of the light emitting element 4 that emits light in the captured image (that is, the library 2 with the door 2a opened) can be easily performed. Further, as described above, the position of the web camera lens can be specified without performing special image processing by attaching a filter having a high transmittance with respect to only the emission wavelength of the light emitting element 4. it can.

  Next, the reader 10 in the library room determines whether or not the signal of the tag 3 attached to the document 1 has been received for a predetermined time or more (step Sa11). If the signal from the tag 3 has been received for a certain period of time, such as a state where the document 1 is not returned to the library 2 after being browsed but left on the desk or the like (step Sa11) YES), a warning that the document 1 that has been viewed has been forgotten to be returned to the library 2 is issued (step Sa13). On the other hand, when the reading device 10 has not received the signal (ID + brightness) of the tag 3 for a predetermined time or longer (NO in step Sa11), another reading device 10 installed outside the library room continues. It is determined whether the signal (ID + brightness) of the same tag 3 has been received (step Sa12).

  Then, if someone takes document 1 out of the library room, another reader 10 installed in the hallway, stairs, entrance, building exit, etc. sends the signal (ID + brightness) of the same tag 3 If it has been received (YES in step Sa12), a warning signal is issued that someone has taken out the document 1 requiring attention from the archive room (step Sa13). If the signal from the same tag 3 is not received for a certain period of time and the signal from the same tag 3 is not received by another reader 10, it is determined that the document 1 has been returned to the library 2. Then, the process returns to step Sa1, enters a standby state, and repeats the above-described processing.

  Next, in the first embodiment, a case where the information on the light receiving element 5 cannot be used successfully due to some reason even if the light receiving element 5 is provided or a tag on which the light receiving element 5 is not provided will be described.

  6 and 7 are flowcharts for explaining the operation when the information of the light receiving element 5 cannot be used well in the first embodiment. Also in this case, it is assumed that the document 1 is stored in the library 2 and the door 2a of the library 2 is closed. Moreover, the situation where the tag 3 is affixed inside the door 2a of the library 2 is assumed.

  The tag 3 of the document 1 stored in the library and the tag 3 of the door 2a of the library 2 are in a standby state in which transmission is stopped (step Sb1). In this state, it is always detected whether there is vibration in the tag 3 attached to the door 2a of the library 2 (step Sb2). If no vibration is detected, the process returns to step Sb1.

  On the other hand, if someone wants to browse the document 1 and opens the door 2a of the library 2 and the tag 3 attached to the door 2a of the library 2 detects vibration (YES in step Sb2), the tag 3 A signal including its own ID and information with vibration is transmitted (step Sb3). The reading device 10 receives this signal (step Sb4). As a result, the reader 10 knows that the tag 3 (attached to the inside of the door 2a of the library 2) with the ID has detected the vibration. Next, whether or not a signal from another tag 3 has been received. Is determined (step Sb5). What is expected as another tag 3 is the tag 3 attached to the document 1 in the archive.

  For example, when the door 2a of the library 2 is opened and the document 1 is stored in the library, and the tag 1 is attached to the document 1, if the document 1 is to be taken out, the document 1 is attached. Since the detected tag 3 detects vibration, a signal including information indicating that the tag 3 has detected vibration is transmitted. Therefore, when the reading device 10 receives a signal separately from the tag 3 attached to the door 2a of the library 2 (YES in step Sb5), the following condition determination is performed. On the other hand, when the reading device 10 does not receive a signal from another tag 3 (NO in step Sb5), the process returns to step Sb2, and the tag 3 attached to the door 2a of the previous library 2 detects vibration again. Determine whether.

  When the reader 10 receives a signal from another tag 3, it determines whether the electric field strength of the received signal from the tag 3 is strong (is greater than or equal to a predetermined threshold) (step Sb6). If the electric field strength of the signal of the tag 3 is weak, the document 1 is not taken out from the library 2, and it is possible that the door 2a of the library 2 is simply opened while searching for the document 1. Alternatively, it may be considered that the document is not in the place where the door 2a of the library 2 is opened. If the electric field strength of the signal of another tag 3 received by the reading device 10 is weak (NO in step Sb6), it is determined that the document 1 is not in the library with the door 2a opened (step Sb7), and step Sb5. Returning to FIG. 2 again, the reader 10 determines whether or not a signal from another tag 3 has been received.

  On the other hand, if the electric field strength of the signal received from another tag 3 is strong (YES in step Sb6), the reader 10 determines that the document 1 is in the library 2 with the door 2a opened (step Sb8). Furthermore, the reader 10 determines whether or not the received signal of the tag 3 includes information indicating that there is vibration (step Sb9). At this time, if there is no document to be browsed in the library 2 that simply opened the door 2a, the door 2a is only opened temporarily, so the tag 3 attached to the document 1 does not detect vibration. That is, the document 1 is not taken out from the library 2. Therefore, if the signal indicating the presence of vibration is not included in the signal of another tag 3 (NO in step Sb9), the process returns to step Sb5 to determine whether a signal from another tag 3 has been received. To continue processing.

  On the other hand, if the signal from another tag 3 includes information indicating the presence of vibration (YES in step Sb9), the reader 10 determines that the document 1 has been taken out from the library 2 for viewing. Then, the access to the document 1 is recorded in the server device 30 (step Sb10). Specifically, the ID of the tag 3 of the library 2 and the ID of the tag 3 of the document 1, the information contained in the signals transmitted from these tags 3 and 3, and the image taken by the web camera 11 at this time A captured image or the like is recorded in the server device 30.

  After the access to the document is recorded in the server device 30, it is determined whether another reading device 10 installed outside the archive room has received the signal (ID + brightness) of the same tag 3 (step Sb11). . And if someone takes document 1 out of the library room, another reader 10 installed in the hallway, stairs, entrance, building exit, etc. sends the signal (ID + brightness) of the same tag 3 If received (YES in step Sb11), a warning signal is issued that someone has taken out the document 1 requiring attention from the library room (step Sb13).

  On the other hand, when another reader 10 installed outside the library room does not receive the signal (ID + brightness) of the same tag 3 (NO in step Sb11), the reader 10 in the library room It is determined whether the signal of the tag 3 attached to the document 1 has been received for a predetermined time or more (step Sb12). And when the document 1 is viewed, it is not returned to the library 2 but left on the desk, or the document 1 is copied or photographed to steal information. If the signal from the tag 3 has been received for a certain time or longer (YES in step Sb12), a warning is given that the browsed document 1 has been forgotten to be returned to the library 2 (step Sb13).

  Normally, the signal from the tag 3 is not received by another reader 10 and is not continuously received for a certain period of time. Therefore, when the signal from the same tag 3 is not continuously received for a certain period of time and the signal from the same tag 3 is not received by another reader 10, the book 2 is opened by opening the door 2 a of the library 2. Therefore, in order to confirm whether another document 1 is viewed at that time, the process returns to step Sb5 and the above-described processing is repeated.

  If the document 1 is simply stored in the library 2, the reader 10 does not receive a signal from another tag 3, and therefore NO in step Sb 5, returns to step Sb 2, and further enters the door 2 a of the library 2. It is determined whether or not the attached tag 3 has detected vibration. If vibration is not detected, it means that another document 1 is not being taken out, and the process finally returns to the standby state in step Sb1.

  Next, the operation of the shooting web camera and the operation from the viewpoint of how to handle the shot image will be described.

  FIG. 8 and FIG. 9 are flowcharts for explaining the processing operation for the web camera and the photographed image in the first embodiment. Also in this case, it is assumed that the document 1 is stored in the library 2 and the door 2a of the library 2 is closed. Moreover, the situation where the tag 3 is affixed inside the door 2a of the library 2 is assumed. Accordingly, the tag 3 of the document 1 stored in the library and the tag 3 of the door 2a of the library 2 are in a standby state in which transmission is stopped.

  In the standby state, the reading device 10 determines whether or not information indicating the presence of vibration has been received from the tag 3 attached to the door 2a of the library 2 (step Sc1), and if no vibration is detected (step Sc1). NO), the condition is always determined. When the door 2a of the library 2 is opened for viewing the document 1, information indicating that there is vibration is transmitted from the tag 3 attached to the door 2a of the library 2, and the reading device 10 receives a signal from the tag 3. Is received (YES in step Sc1), the management device 10 records the image captured by the web camera 11 in the server device 30 (step Sc2). The record of the photographed image at this time is a record that someone opened the door 2a of the library 2. In addition, as shown in FIG. 1, the mirror 12 is installed in the upper part of the library 2, and even if the person who opened the door 2a of the library 2 is turning away from the shooting direction of the web camera 11, The person is identified by the face reflected in the mirror 12, or if the data related to the face of the person who has already been granted access is registered, the collation processing with the data is performed to identify who opened the library. It is also possible.

  Here, the determination condition in step Sc1 shown in FIG. 8 is whether or not the reader 10 has received a transmission with vibration from the tag 3 attached to the door 2a of the library 2, but instead of this condition determination Alternatively, the determination condition may be whether the reading device 10 has received “PD:“ on ”” having brightness from the tag 3 attached to the door 2a of the library 2 (step Sc1a). In this case, the light receiving element 5 is mounted on the tag 3 attached to the door 2a of the library 2, and the inside of the library is dark when the door 2a is closed, and when the door 2a of the library 2 is opened. Uses the fact that the light receiving element 5 of the tag 3 detects the brightness by being brightened by illumination in the library room or the like.

  In addition to this, the determination condition may be whether transmission from the tag 3 attached to the door 2a of the library 2 is received by the reader 10 with a strong electric field strength (step Sc1b). If the door 2a is closed before the transmission signal from the tag 3 affixed to the inside of the door 2a of the library 2 reaches the reading device 10, the door 2a blocks the transmission signal and the electric field strength is weakened. On the other hand, when the door 2a of the library 2 is opened, the transmission signal from the tag 3 is not blocked by the door 2a, and thus reaches the reader 10 with a strong electric field strength.

  Now, after recording the image taken by the web camera 11 in the server device 30, the reading device 10 determines whether or not the transmission from the tag 3 attached to the document 1 has been received (step Sc3). This is to confirm whether the document 1 exists in the archive or whether the document 1 in the archive is taken out. If the document 1 does not exist in the archive or the document 1 in the archive has not been taken out, the reading device 10 does not receive the transmission from the tag 3 attached to the document 1 ( NO in step Sc3), the process returns to step Sc1.

  On the other hand, when the reading device 10 receives a transmission from the tag 3 attached to the document 1 (YES in step Sc3), the reading device 10 displays information indicating that the transmission from the tag 3 attached to the document 1 has vibration. It is determined whether or not it is included (step Sc4). That is, when vibration is not detected by the tag 3 attached to the document 1, the signal from the tag 3 attached to the document 1 is simply received by opening the door 2a of the library 2, so that the document 1 Can be determined not to be taken out from the library 2. Therefore, when the transmission from the tag 3 attached to the document 1 does not include information with vibration (NO in step Sc4), the reading device 10 returns to step Sc3 and another document 1 is taken out from the library 2. Or whether the door 2a of the library 2 is closed.

  On the other hand, when the transmission from the tag 3 attached to the document 1 includes information with vibration (YES in step Sc4), the reading device 10 determines that the document 1 is taken out from the library 2 and viewed. Therefore, in order to cause the light emitting element 4 mounted on the tag 3 to emit light, a light emission command is issued by designating the ID of the tag 3 (step Sc5). The tag 3 attached to the document 1 receives the light emission command and causes the light emitting element 4 to emit light (step Sc6). The management device 20 records the image captured by the web camera 11 facing the library 2 in the server device 30 at the same timing as this light emission (step Sc7). In this way, since the document 1 with the tag 3 that the light emitting element 4 emits can be photographed, the document 1 (of the document 1 taken out from the library 2 by the above-described image processing or a method using a filter is used. Position) can be reliably identified from the image.

  Subsequently, an operation flow related to the handling of the document 1 taken out after that is obtained. First, it is determined whether or not a reading device 10 (particularly, a reading device installed at the entrance and exit) that is different from the library room has received a signal from the tag 3 (step Sc8). When another reading device 10 (for example, reading devices 10a to 10i installed in various places as shown in FIG. 10 described later) receives a signal from the tag 3 (YES in step Sc8), the reading device. The captured images taken at the entrance and the exit are recorded in the server device 30 by the web camera installed at the same place as 10a to 10i, in particular, the web camera 11 installed at the entrance and the exit (step Sc9). . This recorded image can identify who has taken the document 1 out of the library room. Further, along with the recording, an alarm signal is issued to prompt a guard in the building to deal with it (step Sc12).

  On the other hand, when another reading device 10 does not receive a signal from the tag 3 attached to the book 1 (NO in step Sc8), the same reading device 10 installed in the library room is not less than a certain time, It is determined whether or not the signal from the tag 3 is continuously received (step Sc10). For example, if the reading device 10 in the archive room continues to receive a signal from the tag 3 attached to the same document 1 for a certain period of time, the person who viewed the document 1 will receive the information written in the document 1. It is conceivable that information is stolen by taking notes, taking pictures, etc., and browsing documents 1 are left on the desk.

  When the reading device 10 in the library room continues to receive a signal from the tag 3 attached to the document 1 over a certain time (YES in step Sc10), the management device 20 determines the web in the library room. The captured image of the camera 11 is recorded in the server device 30 (step Sc11). Thereby, it is possible to specify who performed what action in the archive room from the recorded photographed image. Next, a warning signal is issued to urge the person in charge inside and outside the library to deal with the act of stealing information written in an important document and the situation in which the important document itself is left (step Sc12). Further, when both the determination condition in step Sc8 and the determination condition in step Sc10 are NO, the process returns to step Sc1 in FIG. 8 and the above-described processing is repeated.

  In the description in FIG. 1 and FIG. 3 described above, a use scene in a library room is assumed, and the outside of the library room may seem to be exactly the same. Thus, when a building having a certain archive room is assumed, how the reading device is installed in the building will be described.

  FIG. 10 is a perspective view showing how the reading apparatus is installed in a building having a library room in the first embodiment. In FIG. 10, the building is a multi-storey building with a single room on the third floor (a corridor on each floor is in the center and a structure with rooms on the left and right. The part indicated by the dotted line L3) is a library room. A library 2 storing documents is installed in the library room. Further, one reading device 10 for receiving a signal of the tag 3 in the archive room is installed in the archive room.

  Further, in the third-floor corridor (broken line L4) that exits the library room, readers 10a and 10b are respectively installed at two positions in front of and behind the drawing (so as to sandwich the exit of the library room). Similarly, reading devices 10c, 10d, and 10g are also installed in the corridors on the first and second floors. In this building, the staircase is at the end of the corridor, one side (before the drawing) is a normal staircase, and the other side (the back side of the drawing) is an emergency staircase. Readers 10e and 10f are also installed at the landings between the first and second floors of these stairs, respectively. In this building, readers 10h and 10i are also arranged at the entrance (entrance) and the emergency exit, which are the most important installation locations.

  In the above description, how the number of reading devices 10, 10a to 10i are installed in the assumed building has been described. Next, FIG. 11 is a conceptual diagram showing how the management device 20 handles these reading devices 10, 10a to 10i. FIG. 11 shows the readers 10, 10 a to 10 i installed at 10 locations in total, and information on the tags 3 received by these readers 10, 10 a to 10 i is supplied to the management device 20. It is like that. Here, for easy understanding, each reading device 10, 10a to 10i is all connected to the management device 20 by separate wiring, but actually, via a network (Ethernet (registered trademark)). Aggregated at each location. Therefore, in order for the management device 20 to recognize which reading device 10, 10a to 10i the received information is, an identifier (ID) is predetermined and assigned to each reading device 10, 10a to 10i. The IDs of the devices 10, 10a to 10i are added to the information to be sent and supplied to the management device 20. In the management apparatus 20 as well, when recording in the server apparatus 30, the IDs of these reading apparatuses 10, 10a to 10i are also recorded. The readers 10, 10a to 10i can be distinguished when checking later.

  In FIG. 11, the reading device 10 is installed in the library room. Normally, when browsing the document 1, only the reading device 10 receives a signal from the tag 3 attached to the document 1. Next, when any one of the two reading devices 10a and 10b installed in the third floor corridor receives the signal from the tag 3 attached to the document 1, the document 1 is taken out of the library room. Can be determined. A warning signal is issued even when it is determined to take out of the library room. Furthermore, if the readers 10e and 10f installed on the stairs or emergency stairs shown on the right side of the third-floor corridor receive a signal transmitted from the tag 3, it can be determined that there is a risk of taking it out of the building. When the reading devices 10c, 10d, and 10g installed in the first / second floor corridors receive, it can be determined that the risk of taking the document 1 out of the building is increased. In this way, from the third floor corridor to the reading devices 10a to 10g installed in the first / second floor corridors, the risk of taking the document 1 out of the building increases from the left to the right in FIG. It is shown that.

  Finally, the readers 10h and 10i shown on the rightmost side in FIG. 11 are installed at the entrance of the building and at the emergency exit. If any one of these two reading devices 10h and 10i receives a signal transmitted from the tag 3 attached to the document 1, it immediately determines that the document 1 is to be taken out of the building. Also, based on this determination, an image taken by the web camera 11 for shooting at the entrance (entrance) or emergency exit is recorded in the server device 30, and who later tried to take the document 1 outside the building? Make sure you can identify it. Further, based on the determination that the document 1 is taken out to the outside, an alarm signal is issued to prompt the manager in charge of the library, the guards guarding the building, etc. to immediately take necessary measures.

  Up to this point, the description has been mainly given of the record of taking out the document 1 from the library 2 and the measures for taking out the document 1 to the outside when using the library management system. Next, a description will be given of searching for the document 1 to be browsed before taking out the document 1 from the library 2 using the library management system.

  FIG. 12 is a schematic diagram showing an operation / display screen of the management apparatus 20. FIG. 12A shows a display example at the time of library / document access, and FIG. 12B shows a display example at the time of document search. In the display example shown in FIG. 12A, as the title “architecture / document access information” in the upper left, a state in which someone has opened the archive door is specifically transmitted from the tag 3 to the display portion immediately below the title. The number of the archive that is being accessed is displayed. In the illustrated example, the ID No. It is shown as “001xxx”. Furthermore, the ID No. Below is a list of documents stored in the archive.

  As the list information, based on the information (tag identifier: ID) transmitted from the tag 3 attached to the document, information on the archive stored in the archive (No. 001xxx) at the time of access is shown. it's shown. In the list of documents, the ID No. of the tag attached to the documents is displayed. And the corresponding document name (file name). For example, in the illustrated example, the ID No. Document name (file name) “2006 Project XX-v1”, ID No. “001xx1” Document name (file name) “2006 Project XX-v2”, ID No. Document name (file name) “2007 Project XX-v1”, ID No. Document name (file name) “2007 Project XX-v2”, ID No. Document name (file name) “2006 Customer Request Survey” for “001xx5”, ID No. The document name (file name) “2007 Customer Request Survey □”,... Is displayed alongside “001xx6”.

  In these lists, a document taken out from the library 2 (a document that has received a signal including information with vibration from the tag 3 attached to the document) is highlighted. In the illustrated example, the ID No. The document name (file name) “2007 Project OO-v2” for “001xx4” is highlighted as a document just taken out for viewing. In the upper right of the screen, an image taken by the web camera 11-1 (see FIG. 2) when someone takes out the document from the archive is displayed. Similarly, at the lower right of the screen, an image taken from a different direction by the web camera 11-2 (see FIG. 2) when the same person takes out the same document from the archive is displayed. In this way, as shown in FIG. 12A, information on a target archive when accessing a library / document, documents, and further information on a photographed image are displayed together.

  Next, a display example at the time of document search shown in FIG. In the example of the display at the time of document search shown in FIG. 12B, the title “search for library / document” is at the upper left, and the search button is arranged below this. On the right side of the search button, several conditions that can be set when searching for a document with the search button are displayed. These are, in order, the identifier number (ID No.) of the tag 3 attached to the document 1, the creation date and time when the document 1 was created, the document name (file name) that is the title attached to the document 1, And the departments involved, such as preparing documents. These search conditions can be input or specified by using a pull-down menu.

  The search result is displayed further below the search condition. Here, first, the library ID No. Is displayed. In the illustrated example, the archive No. 001xx is mentioned. Further, a list of documents is displayed below the archive number. The list includes an identifier (ID No.) of the tag 3, a document name (file name), a creation date when the document was created, detailed information such as a related department, and a “Check” button for selecting a document to be viewed. Is displayed.

  In the example shown in the figure, the ID No. Corresponding to “001xx1”, document name (file name) “2006 Project XX-v1”, detailed information “2006.6.6.x Third Development Department”, ID No. Corresponding to “001xx2”, document name (file name) “2006 Project XX-v2, detailed information“ 2006.9.x Third Development Department ”, ID No. Corresponding to “001xx5”, the document name (file name) “2006 customer request survey Δ, detailed information“ 20066.7.x second sales department ”, and so on. At the top of this list, to the right of the archive number, there are buttons for “← Previous” and “Back →” to check and view documents that are not displayed as a continuation of this list. ing. When these buttons are clicked, a list of documents that could not be displayed on one screen can be displayed one after another. The function of the “Check” button in the selection column prepared for each document positioned in the rightmost column of the list will be described in detail with reference to FIG.

  Next, FIG. 13 is a conceptual diagram showing an operation of searching a library / document according to the first embodiment. FIG. 13 shows the light emission of the light emitting elements (LEDs) 4 and 4 mounted on the library 2 in which the document 1 to be browsed is searched and the storage location thereof is specified, or the tags 3 and 3 attached to the document 1. The situation shown by is shown.

  In FIG. 13, the management device 20 reads record data relating to the storage of past documents from the server device 30 and can obtain information such as in which archive the document 1 to be viewed is stored. . When the management apparatus 20 searches for a document to be viewed on the document search screen shown in FIG. 12B and clicks a “Check” button for selection, the management apparatus 20 first stores the document 1 in the library 2 in which the document 1 is stored. A signal is transmitted from the near reader 10. The signal transmitted from the reading device 10 includes an instruction for causing the light emitting element 4 of the tag 3 attached to the front side of the door 2a of the library 2 in which the selected document 1 is stored to emit light. When the light emission instruction transmitted from the reading device 10 is received by the corresponding tag 3, the tag 3 causes its light emitting element 4 to emit light. When the door 2a of the library 2 is opened by the light emission of the light emitting element 4, the viewer is informed that the document 1 to be viewed is stored.

  When the viewer opens the door 2a of the library 2, a signal indicating vibration is transmitted to the reading device 10 from the tag 3 attached to the door 2a of the library 2. The reading device 10 receives a signal indicating the presence of vibration from the tag 3 and supplies it to the management device 20. The management device 20 recognizes that the door 2a of the previously specified archive 2 has been opened, and instructs the light emitting element of the tag 3 attached to the door 2a of the archive 2 to be turned off. Then, this time, an instruction to emit light from the light emitting element 4 of the tag 3 attached to the document 1 designated to be browsed from the beginning is transmitted. The light emission instruction of the tag 3 of the document 1 is also transmitted from the same reading device 10 as the light emission instruction of the tag 3 attached to the door 2a of the previous library 2. The tag 3 attached to the document 1 receives a signal from the reading device 10, causes the light emitting element 4 to emit light, and teaches the viewer the document 1 designated to be browsed. In this way, the viewer can easily obtain the documents that he / she wanted to view from the beginning without having to hesitate by taking out or checking other archives or documents, and checking the search screen. Can browse.

  Next, FIG. 14 is a flowchart for explaining a series of operations for taking out a document based on the location of the document stored in the library searched from the document search. First, on the screen of the management device 20 (screen shown in FIG. 12B for searching for documents), the document 1 to be browsed is searched on the condition of the file name or the like (step Sd1). Next, it is determined whether or not there is a hit by the search (step Sd2). If there is no hit (NO in step Sd2), the process returns to step Sd1, and the search condition is changed on the search screen or each document is displayed on the screen. Check the detailed information about and repeat the search.

  On the other hand, if there is a hit by the search (YES in step Sd2), the management apparatus 20 displays the search result on the screen (step Sd3). The management device 20 determines whether or not the desired document 1 to be viewed has been selected (clicking on the “Check” button) (step Sd4). If not selected (NO in step Sd4), the document to be viewed is determined. Has not yet been searched, the process returns to step Sd1, and the search is performed again with different conditions.

  On the other hand, when the desired document 1 to be viewed is selected (YES in step Sd4), as described above, the management device 20 instructs the light emission of the light emitting element of the tag 3 attached to the front side of the library 2 to emit light. Is transmitted (step Sd5). When the corresponding tag 3 receives the light emission instruction, it emits its own light emitting element (LED). The library 2 to which the tag 3 is attached stores the document 1 selected for browsing.

  Next, the management device 20 determines whether or not the door 2a of the corresponding library 2 has been opened (step Sd6). Here, the management device 20 determines whether a signal indicating vibration is received from the tag 3 attached to the door 2a of the library 2 that has received the light emission instruction. And the management apparatus 20 wants to browse according to a search result, when the signal which shows a vibration is not received, ie, when the door 2a of this library 2 is not opened (NO of step Sd6). Since it is presumed that the viewer thinks that the document is not the same and starts the search again, the process returns to step Sd1, and the above-described processing is repeated.

  On the other hand, in order to take out the document 1 that has been selected by hitting the search because it is desired to be browsed, the door 2a of the library 2 to which the tag 3 emitting light from the light emitting element 4 is attached is opened (step Sd6). YES), the information is updated as the archive access display on the screen of the management apparatus 20 (step Sd7). The screen of the management device 20 at this time is the one shown in FIG. Next, the management apparatus 20 turns off the light emitting element 4 of the tag 3 attached to the corresponding library 2, and transmits a light emission instruction to cause the light emitting element 4 of the tag 3 of the corresponding document 1 to emit light (step Sd8). In this way, by emitting light from the light emitting element 4 of the tag 3 attached to the document 1, it is possible to determine which of the documents stored in one library with the door 2a opened is the document to be viewed. In addition to allowing the viewer to easily recognize, it is possible to save the trouble of searching for a desired document from among a large number of documents in the library.

  Following the light emission of the light emitting element of the tag 3 attached to the document 1, the management apparatus 20 determines whether or not the corresponding document 1 has been taken out from the library 2 (step Sd9). The take-out of the document 1 can be grasped by confirming whether a signal indicating vibration is transmitted from the tag 3 attached to the document 1. If no signal indicating vibration is transmitted from the tag 3 attached to the document 1 (NO in step Sd9), it is determined whether or not the door 2a of the library 2 is closed (step Sd10). ). Whether the door 2a is closed is determined by a signal indicating that there is vibration from the tag 3 attached to the door 2a of the library 2, and a signal indicating that there is a second vibration following the signal when the door 2a is opened. Judgment can be made based on whether or not it has been transmitted.

  Then, when the door 2a of the library 2 is closed (YES in step Sd10), the door 2a of the library 2 is opened, but is informed by the light emission of the light emitting element 4 of the tag 3 of the document 1 in the library. Since it is considered that the viewer does not pick up the actual document 1 and recognizes that it is different from the document he / she wants to browse at a glance, the management device 20 instructs to turn off the light emitting element 4 of the document 1 (step Sd11). After that, the process returns to step Sd1, and a process for searching by a file name or the like is performed on the screen of the management apparatus 20, and another document is searched again.

On the other hand, not closed the door 2a of the corresponding archive 2, if it is to remain open was (NO in step Sd10), it issues a warning After the lapse of a predetermined period of time (step Sd 14). Specifically, for example, it is dangerous to keep the door 2a of the library 2 storing important documents over a predetermined period of 10 minutes, so this fixed period is When the time has elapsed, a warning is given to the viewer in the library room or the person in charge of managing the library 2 (step Sd14). Next, when an appropriate action is taken by a warning (the door 2a of the library 2 that has been opened is closed), an instruction to turn off the light emitting elements 4 of both the library 2 and the document 1 is issued (step Sd15), and then The process ends.

  In step Sd9, when the corresponding document 1 is taken out from the library 2 with the door 2a opened (YES in step Sd9), information is updated as a document access display on the screen of the management device 20 (step Sd12). This document access display is the display screen shown in FIG. Next, it is determined whether or not the door 2a of the corresponding library 2 has been closed (step Sd13). If the door 2a of the library 2 is not closed (NO in step Sd13), it is assumed that the door 2a of the library 2 has been forgotten to be closed after the document 1 is taken out. Therefore, in this case, as in the case where the document 2 is not taken out and the door 2a of the library 2 is left open, the reader who is in the library room or the person in charge of managing the library 2 after a certain period of time has passed. (Step Sd14). Next, when an appropriate action is taken by a warning (the door 2a of the library 2 that has been opened is closed), an instruction to turn off the light emitting elements 4 of both the library 2 and the document 1 is issued (step Sd15), and then The process ends.

If the door 2a of the library 2 is closed after taking out the document 1 in step Sd13 (YES in step Sd13), an instruction to turn off the light emitting element 4 of the tag 3 of the document 1 is issued (step Sd16). ), And then the process ends.

  As described above, according to the operation of searching for a library / document shown in FIG. 14, if the user wants to browse on the screen of the management apparatus 20, the search is performed while going to the library 2 and looking at the actual document 1. Rather than simply selecting the desired document 1 from the management device 20, the light emitting element 4 of the tag 3 attached to the library 2 storing the desired document 1 emits light, so that the desired document 1 can be easily stored. It is possible to recognize the archive 2 that is being used, and it is possible to confirm at a glance which document 1 in the archive is the light emission of the light emitting element 4 of the tag 3 attached to the document 1. In this way, not only the presence of the document 1 to be browsed, the location of the stored archive 2 and the document itself are easily informed, but also the danger that the door 2a of the archive 2 is left open. Can be urged to take appropriate action.

B. Second Embodiment Next, a second embodiment of the present invention will be described.
In the second embodiment, a library without a door will be described as a library management system.
FIG. 15 is a schematic diagram illustrating a configuration of a library management system in a library without a door according to the second embodiment. It should be noted that portions corresponding to those in FIG. In FIG. 15, the library (rack) 50 is not provided with a door, and documents (files) 1 are simply arranged on shelves of several levels (two levels in the illustrated example). As described above, in the second embodiment, the library 50 is used in which it is possible to confirm at a glance that the documents 1 are normally arranged in the library 50. A tag (3) is attached to a document (file) 1 arranged on the shelf of the library 50. As in the first embodiment , the tag 3 includes a light emitting element 4 that emits light, a light receiving element 5 that detects ambient brightness, and a vibration sensor 6 that detects vibration of the tag 3. However, the server apparatus 30 shown in FIG. 15 includes the functions and operations of the management apparatus 20 of FIG.

  A mirror (curve mirror) 12 is installed on the upper side of the library 50. The mirror 12 is for photographing the face of the person from the front side reflected in the mirror even when the web camera 11 photographs from the back of the person who is taking out the document 1 from the library 50. In addition, the archive management system includes a reading device 10, 10a, 10b,... That receives a signal transmitted from the tag 3, a web camera 11, a reading device 10, 10a, 10b,. A server device 30 that collects, displays, and manages information from the web camera 11 is provided.

  As in the first embodiment described above, the reading device 10 can not only receive a transmission signal from the tag 3 but also transmit a light emission instruction to cause the light emitting element 4 to emit light to the tag 3. is there. This is because, for example, for the document searched by the server device 30, the light emitting element 4 mounted on the tag 3 attached to the document 1 is caused to emit light so that the document 1 to be viewed can be easily found and taken out. It is. In the example shown in the figure, the document 1 at the center position is selected from the four documents 1 in the upper row among the two shelves, so that the light emitting element 4 of the tag 3 attached to the document 1 is selected. Is emitting light.

  In addition, the server device 30 identifies each document from the captured image of the entire library taken by the web camera 11, and stores each document at what time and on which shelf of the library. In order to ascertain whether or not, a photographed image of the whole library photographed by the web camera 11 is recorded. Specifically, the server device 30 includes information included in a transmission signal from the tag 3 attached to each document 1 supplied from the reading device 10, and a photographed image by the web camera 11 that photographs the entire same archive. Are identified and each document 1 stored in the library 50 is identified.

  In addition, the server device 30 creates a document list by specifying each document 1, retrieves a document to be viewed from the created document list based on related information, The document 1 to be browsed is selected, and the light emitting element 4 of the tag 3 attached to the document 1 is caused to emit light via the reading device 10 so that the document 1 can be easily found and retrieved from the library 50. And so on. Since one server device 30 may collect information received from a large number of tags 3, 3,... From a plurality of reading devices 10, 10a, 10b,. You may make it provide the function of the management apparatus 20 demonstrated by the form. The structure of the tag 3 used here is the same as that of the first embodiment described above.

  FIG. 16 is a flowchart for explaining the operation of the archive management system according to the second embodiment. In grasping all documents in the library, first, a list of documents 1 stored in the library 50 is created, and a document list initialization is performed so that the created list is registered in the server device 30 (step Se1). Next, the server device 30 temporarily stores the reception result of the signal transmitted from the tag 3 attached to the document 1. (Step Se2). For example, in the case where the tag 3 has periodic random fluctuations and is periodically transmitted at intervals of about 1 minute, and 20 documents 1 are stored and managed in a bookcase, The reception result is temporarily stored. Next, with respect to the reception result once stored, it is determined whether or not transmission signals from the tags 3 of all documents in the previously created (updated later) document list have been received (step Se3). When any document 1 is taken out from the library 50, it is assumed that the transmission signals from the tags 3 of all the documents in the document list cannot be received. If the transmission signal from the tag 3 of all documents has not been received (NO in step Se3), the web camera 11 captures an image and records the entire archived image in the server device 30 (step Se4). .

  Next, it is determined whether or not the room in which the library 50 is installed is sufficiently bright (step Se5). This is to determine whether the tag 3 that cannot receive the transmission signal is actually taken out or whether the tag 3 has stopped transmitting because the room is dark. Note that the brightness of the room is determined from an image taken by the web camera 11. The tag 3 attached to the document 1 has a light receiving element 5 mounted thereon, and stops transmission when the surroundings are dark. If the room is not sufficiently bright (NO in step Se5), it is determined that it is out of time to use the archive, and the process is terminated.

  On the other hand, if the document stored in the library 50 is clearly shown in the photographed image and the room is sufficiently bright (YES in step Se5), the identifier (ID) included in the transmission signal from the tag 3 that could not be received. Then, from the image taken by the web camera 11, a document that is not stored in the entire library is specified (step Se6). Next, the document not photographed by the web camera 11 is removed from the document list, and the document list is updated (step Se7). Next, it is determined whether or not the document 1 taken out from the library 50 has been lent out within a certain time (for example, 15 minutes) (step Se8). If the lending procedure has not been performed (NO in Step Se8), a warning (warning) is issued to prompt the person in charge of the library and the manager to take appropriate measures (Step Se9). Thereafter, the process ends. The archive management system returns to step Se1 again to initialize the document list.

  On the other hand, when the document 1 taken out from the library 50 has been lent out within a certain time (YES in Step Se8), the process returns to Step Se2 and is again converted to Document 1 using this updated document list. A transmission signal from the attached tag 3 is once recorded, and the above-described processing is repeated.

  In step Se3, when transmission signals from all the tags 3 in the document list are received (YES in step Se3), it is determined whether transmission signals from tags 3 other than the document list have been received. (Step Se10). If only transmission signals from all the tags 3 in the document list are received (NO in step Se10), the process returns to step Se2 without changing the document list, and the above-described processing is repeated.

  On the other hand, when the transmission signal from the tag 3 other than the document list is received (YES in Step Se10), it is assumed that the document 1 taken out from the library 50 is returned. The document stored in the archive is recorded in the photographed image (step Se11). Next, the document 1 is specified from the ID of the tag 3 that could be newly received (not in the previous document list) and the photographed image photographed by the web camera 11 (step Se12). It can be presumed that this identified document was previously removed from the archive and returned this time. Next, the server device 30 adds the specified document and updates the document list (step Se13). Then, it returns to step Se2 and repeats the process mentioned above again.

  As described above, according to the second embodiment, it is possible to grasp all documents in the library, including taking out the document 1 from the library 50 and returning the document 1, without performing special procedures. This is performed according to a transmission signal from the attached tag 3.

  Next, FIG. 17 is a flowchart for explaining a search operation for a document to be viewed in a library without a door according to the second embodiment. First, the server device 30 displays an updated document list (step Sf1), and determines whether or not a document to be browsed has been searched or selected from the displayed document list (step Sf2). In other words, a person who wants to search for a document to browse browses or selects a document to view from the updated document list. If the document to be browsed from the document list has not been searched or selected (NO in step Sf2), it is determined whether or not a certain time has passed in this state (step Sf3). The fixed time is a predetermined time, for example, 10 minutes. If the predetermined time has not elapsed (NO in step Sf3), the process returns to step Sf2 to search or select a document to be browsed from the document list again.

  On the other hand, if a certain time has elapsed (YES in step Sf3), if there is a tag 3 that has caused the light emitting element 4 to emit light according to a light emission instruction described later, the light emission of the light emitting element 4 of the tag 3 is turned off (step) Sf4) Since the updated document list is still displayed, the display of the document list is erased (step Sf5), and then the process ends.

  In step Sf2, if a document to be browsed is searched or selected (YES in step Sf2), it is determined whether or not the light emitting element 4 of the tag 3 attached to another document has been made to emit light. (Step Sf6). If the light emitting element 4 of the tag 3 previously attached to another book is caused to emit light, the light emitting element 4 emitting light is turned off (step Sf7). On the other hand, when the light emitting element 4 of the tag 3 attached to another book has not been caused to emit light, or when the light emitting element 4 is turned off, the light emitting element of the tag 3 attached to the selected document. 4 is instructed (step Sf8).

  When receiving the light emission instruction from the reading device 10, the tag 3 of the corresponding document causes its light emitting element 4 to emit light (step Sf9). In this way, the document 1 to be browsed can be easily recognized by causing the light emitting element 4 of the tag 3 attached to the searched or selected document to emit light. Next, it is determined whether or not the document 1 with the emitted tag 3 is taken out from the library 50 (step Sf10). Whether or not the document 1 has been taken out from the library 50 is determined by whether or not vibration is detected by the vibration sensor 6 mounted on the tag 3. When the server device 30 does not receive a transmission signal indicating that vibration has been detected from the corresponding tag 3, the document 1 with the tag 3 that causes the light emitting element 4 to emit light is a document that the user wants to browse at a glance. Since there was no book, it is recognized that the book 1 has not been taken out from the archive 50 (NO in step Sf10), the process returns to step Sf2, and the document to be browsed is searched again from the document list.

  On the other hand, when a transmission signal indicating that vibration has been detected is received from the corresponding tag 3, it is recognized that the book 1 has been taken out from the library 50 (YES in step Sf10), and the tag 3 attached to the taken out document 1 The light emitting element 4 emitting light is turned off (step Sf11). Next, since the document 1 is extracted, the document list is updated so that the extracted document 1 is deleted from the document list (step Sf12). Then, after completing a series of processes, the process returns to step Sf1 again, the updated document list is displayed, and the above-described processes are repeated.

  By the above-described operation, the document 1 to be browsed is searched, and among the documents stored in the library 50, which document is the target is made easy to find by causing the light emitting element 4 of the tag 3 to emit light. I can. At the same time, the list of documents stored in the archive is automatically updated, so it can be easily managed.

  FIG. 18 is a flowchart for explaining the operation of the tag 3 according to the second embodiment. When the tag 3 starts operating, the tag 3 transmits a first signal informing its presence (step Sg1). Next, it is determined whether or not the periphery of the tag 3 is bright by the light receiving element 5 (step Sg2). If the room is dark, it is assumed that the document 1 is not rented or returned as well as the document 1 from the archive 50. On the other hand, if the room is sufficiently bright, the document can be viewed, rented or returned. This is because it is supposed to be performed. If it is determined by the light receiving element 4 that the periphery of the tag 3 is dark (NO in step Sg2), it is determined whether or not the dark state continues for a predetermined time (step Sg3). The predetermined time is, for example, 30 minutes. If the room remains dark for a predetermined time or longer (YES in step Sg3), it is assumed that the document 1 is not lent or returned for the time being. Is stopped (step Sg4), and the process ends.

  On the other hand, if it becomes bright within a predetermined time (NO in step Sg3), or if the surroundings are bright from the beginning (YES in step Sg2), tag 3 continues (starts) periodic transmission. (Step Sg5). In this periodic transmission, in order to avoid a continuous collision of transmissions from a large number of tags 3, random fluctuations are given in time. Next, it is determined whether or not the vibration sensor 6 has detected the vibration of the tag 3 (step Sg6). The presence or absence of this vibration is for determining whether or not the document 1 to which the tag 3 is attached has been taken out from the library 50.

  When the vibration sensor 6 detects the vibration of the tag 3 (YES in step Sg6), the vibration is transmitted as a trigger (step Sg7). In this case, the signal transmitted by the tag 3 includes information indicating the presence of vibration. When the reading device 10 receives this signal, it can be determined that there is vibration, and it can be estimated that the document 1 with the tag 3 is taken out from the library 50. When the document 1 is taken out from the library 50, the person who takes out the document 1 can also be photographed by photographing the library 50 with the web camera 11 as described above. In particular, a face image of the person in front of the person can be left by the mirror 12 installed on the upper side of the archive 50 for a person who is looking to take out the document facing the archive side.

  On the other hand, when the document 1 is stored in the library 50 and no vibration is detected (NO in step Sg6), periodic transmission including random fluctuation is continued (step Sg8). Then, even when transmission is performed using vibration as a trigger, or when periodic transmission including random fluctuations is continued, the process returns to step Sg2 and the above-described processing is repeated.

  Further, as described in the search for the document to be browsed as an operation independent of the operation of the tag 3 described above, an instruction to emit / extinguish the light from the light emitting element 4 of the tag 3 is transmitted from the reading device 10, and the tag 3 The light emitting element 4 is caused to emit light or the light emitting element 4 that is emitting light is turned off.

C. Third Embodiment Next, a third embodiment of the present invention will be described.
In the third embodiment, a description will be given of a library management system in the case of a library with a door and a lock on the library door.
FIG. 19 is a schematic diagram showing the configuration of the management system when there is a lock on the door of the archive according to the third embodiment. It should be noted that portions corresponding to those in FIG. However, the server device 30 shown in FIG. 19 includes the functions and operations of the management device 20 of FIG. Further, the notebook PC 40 connected to the server device 30 in FIG. 19 has an operation function for displaying information from the server device and instructing the server device 30. In FIG. 19, the library 60 has a door 60a provided with a lockable lock. A plurality of documents are stored in the library 60, and a tag 3 is attached to each document 1. Although the tag 3 is omitted in FIG. 19, as in the first and second embodiments described above, the light emitting element 4 that emits light, the light receiving element 5 that detects the brightness of the library room, and vibration are detected. A vibration sensor 6 is provided. Further, when the tag 3 is taken out from the library 60, when a sufficient brightness is detected by the light receiving element 5 or when vibration is detected by the vibration sensor 6, a transmission signal including information is transmitted as a trigger. To do. In the library room, a reading device 10 that receives a transmission signal from the tag 3 attached to the document 1 or the tag 80 attached to the key 61 is installed. A web camera 11 for photographing the library 60 is installed in the library room.

  On the upper side of the library 60, a mirror (curve mirror) 12 is provided. When the person who takes out the document 1 from the archive 60 is facing the archive 60, the mirror 12 captures the face from the front of the person when the photograph is taken with the web camera 11 from behind. As described above, the library 60 includes the door 60a with a lock. Keys 61, 61,... For locking and unlocking the door 60a are collectively managed in the key storage 70. Further, the same tag 80 as the tag 3 attached to the document 1 is attached to the key 61. A light emitting element 81, a light receiving element 82, and a vibration sensor 83 are mounted on the tag 80.

  When the key 61 of the library door 60 a is taken out from the key storage 70, vibration is detected by the vibration sensor 83 mounted on the tag 80, or the brightness of the room where the key storage 70 is located is detected by the light receiving element 82. When a transmission signal is transmitted from the tag 80 using this as a trigger, the reader 10 installed in the room where the key storage is located receives the transmission signal and recognizes that the key 61 has been taken out. In addition, when the door 60a of the library 60 is opened with the key 61, the reader 60 in the library room receives the transmission signal from the tag 80 to recognize that the door 60a of the library 60 has been opened. It is possible. Further, when the transmission signal from the tag 3 attached to the document 1 stored in the library includes information indicating that the vibration is detected by the vibration sensor 6, the reading device 10 reads the library 60. It has come to recognize that the document 1 has been taken out from.

  When the server device 30 opens the door 60a of the archive 60 with the key 61 or when the document 1 is taken out from the archive 60, the server device 30 transmits a signal from the tags 3 and 80 and the surroundings of the archive photographed by the web camera 11. The photographed image of the situation and the like is recorded, so that it is possible to examine who took out which document when and so on later. The structure of the tags 3 and 80 according to the third embodiment is the same as that of the first and second embodiments described above.

  Next, FIGS. 20 and 21 are flowcharts for explaining the operation of the archive management system according to the third embodiment. In this case, the place where the key 61 of the archive door 60a is stored is not the archive room where the archive is located, but another room such as a central management room that manages the entire building. In this other room (central management room), it is assumed that the reading device 10 that receives the transmission signal from the tag 80 of the key 61 is also installed in the hallway and stairs on the way to the library room.

  First, it is determined whether or not the key 61 of the library door 60a has been removed from the key storage 70 (step Sh1). This indicates that the reading device 10 installed in the central management room where the key storage 70 of the key 61 has received a transmission signal from the tag 80 attached to the key 61 or that the transmission signal from the tag 80 has vibration. This is confirmed by determining whether information is included. If the key 61 of the library door 60a has not been taken out from the key storage 70 (NO in step Sh1), it waits for the key 61 to be taken out.

  On the other hand, when the key 61 of the library door 60a is taken out from the key storage 70 (YES in step Sh1), it is determined whether or not the key 61 of the library door 60a has been returned to the key storage 70 (step Sh2). ). This is because the reader 10 of the central management room with the key storage 70 receives a transmission signal from the tag 80 attached to the key 61, and immediately after that, it is installed just outside the central management room such as a corridor and stairs. When the reader 10 does not receive the transmission signal from the tag 80 and any reader 10 can no longer receive it, it is recognized that it has been returned to the key storage 70 in the central control room. When the key 61 of the library door 60a is returned to the key storage 70 (YES in step Sh2), the process returns to step Sh1 and waits for the key 61 to be taken again.

  On the other hand, when the key 61 of the library door 60a is taken out from the key storage 70 but cannot be immediately returned to the key storage 70 (NO in step Sh2), the key 61 of the library door 60a is stored in the library 60. It is determined whether it has been carried before (Step Sh3). As described above, the key storage 70 of the key 61 is in the central management room and the like, the library 60 is in the library room, and there are corridors and stairs in the middle. A reader 10 is installed at the place. Therefore, if the reading device 10 installed in each place in the order of the central management room, the hallway, the stairs, and the library room receives the transmission signal from the tag 80 attached to the key 61, the key 61 of the library door 60a is stored in the library 60. It can be determined that it was carried before. If the reading signal 10 from the tag 80 cannot be received by the reading device 10 in the archive room, the key 61 of the archive door 60a has not been carried in front of the archive 60 (NO in step Sh3). Since it is predicted that the key will be returned to the key storage 70 in the management room, the process returns to step Sh2 to repeat the determination of whether the key 61 has been returned to the key storage 70.

On the other hand, when the key 61 of the archive door 60a is carried in front of the archive 60 (YES in step Sh3), transmission of the tag 3 attached to the front side of the archive door 60a is started or the transmission interval is shortened. Frequently (step Sh4) . By doing this, when one of the archive doors 60a is opened, the tag 3 of the archive door 60a is transmitted by vibration, or the archive door 60a has not been opened yet (the other door 60a is still open). It can be accurately grasped.

  Next, the archive 60 is frequently photographed by the web camera 11 (step Sh5). Specifically, the web camera 11 has taken a certain interval, for example, every 5 minutes, so that the shooting frequency is increased by 10 times every 30 seconds. Try to get a detailed picture of the surrounding area. Next, it is determined whether or not the reading device 10 has received a transmission signal including information indicating the presence of vibration from the tag 3 attached to the archive door 60a (step Sh6). That is, it is determined whether the archive door 60a has been opened. If the archive door 60a cannot be opened (NO in step Sh6), the transmission operation of the tag 3 attached to the archive door 60a and the shooting operation of the web camera 11 are returned (step Sh7), and the flow returns to step Sh3. The determination of whether or not the key 61 of the library door 60a has been returned to the key storage 70 is repeated. That is, the transmission operation of the tag 3 is stopped or returned to a state where the transmission interval is lengthened, and the operation of the web camera 11 is returned to, for example, the frequent shooting every 30 seconds to the shooting every 5 minutes. Is confirmed to be returned to the key storage 70 of the central management room.

  On the other hand, when the reading device 10 receives a transmission signal including information indicating the presence of vibration from the tag 3 attached to the archive door 60a, that is, when the archive door 60a is opened (YES in step Sh6), the server Since it is assumed that the document door 1 is taken out when the archive door 60a is opened, the apparatus 30 records a photographed image photographed by the web camera 11 at this time (step Sh8). The record of the photographed image at this time is a record that someone opened the archive door 60a. In addition, even if the person who opened the archive door 60a turned his back to the shooting direction of the web camera 11 by the mirror 12 installed on the upper part of the archive 60, the person can be grasped by the face reflected in the mirror 12, If data related to the face of a person who has already been granted access is registered, it is possible to identify who opened the library 60 by performing collation processing with that data.

  Next, it is determined whether or not the transmission from the tag 3 attached to the document 1 has been received (step Sh9). This is to confirm whether the document 1 exists in the archive or whether the document 1 in the archive is taken out. If the document 1 does not exist in the archive or the document 1 in the archive has not been taken out, the reading device 10 does not receive the transmission from the tag 3 attached to the document 1 ( Step Sh9 NO) returns to Step Sh6.

  On the other hand, when the reading device 10 receives a transmission from the tag 3 attached to the document 1 (YES in step Sh9), the reading device 10 displays information indicating that the transmission from the tag 3 attached to the document 1 has vibration. It is determined whether or not it is included (step Sh10). That is, when vibration is not detected by the tag 3 attached to the document 1, the document 1 is archived only by receiving the signal from the tag 3 attached to the document 1 simply by opening the archive door 60a. 2 can be determined not to be taken out. Therefore, when the transmission from the tag 3 attached to the document 1 does not include information with vibration (NO in step Sh10), the reading device 10 returns to step Sh9 and another document 1 is taken out from the library 2. It is also confirmed whether the library door 60a is closed.

  On the other hand, when the transmission from the tag 3 attached to the document 1 includes information with vibration (YES in step Sh10), the reading device 10 determines that the document 1 is taken out from the library 60 and viewed. Therefore, in order to cause the light emitting element 4 mounted on the tag 3 to emit light, a light emission command is issued by designating the ID of the tag 3 (step Sh11). The tag 3 attached to the document 1 receives the light emission command and causes the light emitting element 4 to emit light (step Sh12). The management device 10 records the image captured by the web camera 11 facing the archive 60 in the server device 30 at the same timing as this light emission (step Sh13).

  Next, it is determined whether or not a reading device 10 (particularly, a reading device installed at the entrance and the exit) that is different from the library room has received a signal from the tag 3 (step Sh14). When another reading device 10 (for example, reading devices 10h and 10i installed at the entrance and exit as shown in FIG. 10) receives a signal from the tag 3 (YES in step Sh14), the reading device 10 The photographed image taken at the entrance or exit is recorded in the server device 30 by the web camera installed at the same place as the apparatus 10, particularly the web camera 11 installed at the entrance or exit (step Sh15). This recorded image can identify who has taken the document 1 out of the library room. Along with the recording, an alarm signal is issued to prompt the guards in the building to deal with it (step Sh17).

  On the other hand, when another reading device 10 does not receive a signal from the tag 3 attached to the book 1 (NO in step Sh14), the same reading device 10 installed in the library room is not less than a certain time, It is determined whether or not the signal from the tag 3 is continuously received (step Sh16). For example, if the reading device 10 in the archive room continues to receive a signal from the tag 3 attached to the same document 1 for a certain period of time, the person who viewed the document 1 will receive the information written in the document 1. It is conceivable that information is stolen by taking notes, taking pictures, etc., and browsing documents 1 are left on the desk.

  If the reading device 10 in the library room continues to receive the signal from the tag 3 attached to the document 1 over a certain time (YES in step Sh16), the web camera 11 in the library room takes a picture. The image is recorded in the server device 30 (step Sh17). Thereby, it is possible to specify who performed what action in the archive room from the recorded photographed image. Next, a warning signal is issued to urge the person in charge inside and outside the library to deal with the act of stealing information written on an important document and the situation where the important document itself is left (step Sh17). Further, when both the determination condition of step Sh14 and the determination condition of step Sh16 are NO, the process returns to step Sh6 of FIG. 20 and the above-described processing is repeated.

  According to the third embodiment described above, a warning signal is issued when there is an act of taking out a document outside the building or when the document is out of the library for a predetermined time after taking out the document. It is supposed to be. In this way, it becomes possible to accurately manage important documents.

D. Fourth Embodiment Next, a fourth embodiment of the present invention will be described. The fourth embodiment is characterized in that a tag is also carried by a person in a library management system.
FIG. 22 is a perspective view showing how the reading device of the library management system according to the fourth embodiment is installed in a building (third floor portion) provided with a library room. In addition, the same code | symbol is attached | subjected to the part corresponding to FIG. In FIG. 22, readers 10, 10a, 10b, 10e, 10f, and 10j are installed in a library room with a library, a corridor on the third floor, each staircase, and an office. In addition, people in each room or people in the building have a tag 90 attached to the name holder NH or the like. Therefore, it becomes possible to grasp when and who was in the archive room by the transmission signal from the tag 90. You can also check actions from the library, such as going out of the library room, going down the 3rd floor corridor, going down the stairs, or returning to your usual office. As described above, the tag 90 is given to a person, and the library 2 is frequently photographed by the web camera 11 from when the person enters the library room, or the tag 3 attached to the library 2 or the document 1 is used. The transmission is started or the transmission interval of the tag 3 is shortened so as to be transmitted frequently. In this way, it is possible to focus on monitoring when a person is in the library room.

  Note that the structures of the tags 3 and 90 used in the fourth embodiment are the same as those in the first to third actual child forms described above, and thus the description thereof is omitted. In the case where the person also has a tag 90, the first embodiment (the archive management system in the case where the library 2 has the door 2a), the second embodiment (when the library has no door), the third embodiment. It can be combined with any of the embodiments (when the door 60a of the archive has a lock) and is usually used in combination with any of the first to third embodiments.

  Next, FIGS. 23 and 24 are flowcharts for explaining the operation of the archive management system according to the fourth embodiment. In the flowchart, the operation is described as a combination with the case where there is no door in the archive of the second embodiment described above. Here, it is assumed that the person having the tag 90 is in an office (office room) in the same building. Of course, an external visitor may have a tag 90 attached to a similar name holder. In this case, the same operation flowchart shown in FIG. 23 and FIG. 24 can be used even if it is read as a reception counter instead of the normal office.

First, it is determined whether or not the reading device 10 j in the usual office has received a transmission signal from the tag 90 held by the person (step Si1), and the reading device 10 j transmits the transmission signal from the tag 90 held by the person. If it receives a (YES in step Si1), the person, it means being in the office who are usually, received transmission signals from the tag 90 to which the person is possessed by installing the reader 10 j office Wait until you can't (wait until the person leaves the office).

  On the other hand, when the transmission signal from the tag 90 possessed by the person is not received (NO in step Si1), the person having the tag 90 has left the office. It is determined whether or not the reading device 10 in the library room has received (Step Si2). If the signal of the tag 90 held by the person is not received by the reading device 10 in the library room, it is assumed that the person will return to the office room again, and the process returns to step Si1.

On the other hand, when the reading device 10 in the library room receives the signal of the tag 90 possessed by the person (NO in step Si2), the person having the tag 90 has entered the library room. 3 is frequently started or transmitted (step Si3), and the web camera 11 frequently photographs the archive (step Si4) . Next, it is determined whether or not the readers 10a and 10b in the corridor have received a transmission signal from the tag 90 held by a person (step Si5). When the reading devices 10a and 10b in the corridor receive the transmission signal from the tag 90 held by the person (YES in step Si5), the reader once entered the archive room, but without viewing any documents, or After reading, I left the library room and received the tag 90 signal held by the reader 10a, 10b installed in the corridor outside of it. Is restored (step Si6). That is, the transmission of the tag 3 of the document 1 is stopped, or the frequency of transmission is reduced, and the frequency of shooting the archive with the web camera 11 is also reduced. Thus, after returning the operations of the tag 3 of the document 1 and the web camera 11, the process returns to step Si1.

  If the reading devices 10a and 10b in the corridor do not receive a transmission signal from the tag 90 held by the person (NO in step Si5), the person holding the tag 90 remains in the library room. 11 is recorded on the server device 30. Next, it is determined whether the reading device has received a transmission signal from the tag 3 attached to the document 1 (step Si8). Usually, the transmission of the tag 3 of the document 1 is started or frequently performed in the previous process, so that it should be able to be received. However, if this condition determination is “NO” and the reception is not possible, the process returns to step Si5.

  On the other hand, when the reading device receives the transmission signal from the tag 3 attached to the document 1 (YES in step Si8), it is determined whether the transmission signal from the tag 3 includes information indicating the presence of vibration ( Step Si9). If the transmission signal from the tag 3 does not include information indicating the presence of vibration, it is presumed that the document 1 has not been taken out from the archive 2, so the process returns to step Si8, and the transmission signal from the tag 3 vibrates. Repeat until it is included.

  If the transmission signal from the tag 3 includes information indicating that there is vibration, the reading device 10 issues a light emission command with ID designation (step Si10). When receiving the light emission command, the tag 3 causes its own light emitting element 4 to emit light (step Si11). Next, a photographed image photographed by the web camera 11 is recorded in the server device 30 as to how the light emitting element 4 emits light in the tag 3 of the document 1 (step Si12).

  Next, it is determined whether or not a reading device 10 (in particular, a reading device installed at the entrance and exit) that is different from the library room has received a transmission signal from the tag 3 (step Si13). When another reading device 10 (for example, reading devices 10c to 10i installed in various places as shown in FIG. 10) receives a signal from the tag 3 (YES in step Si13), the reading devices 10a to 10a. The photographed image taken at the entrance or exit is recorded in the server device 30 by the web camera installed at the same place as 10i, in particular, the web camera 11 installed at the entrance or exit (step Si14). This recorded image can identify who has taken the document 1 out of the library room. Further, along with the recording, an alarm signal is issued to prompt the guards in the building to cope (step Si17).

  On the other hand, when another reading device 10 has not received a signal from the tag 3 attached to the book 1 (NO in step Si13), the same reading device 10 installed in the library room is not less than a certain time, It is determined whether or not the signal from the tag 3 is continuously received (step Si15). For example, if the reading device 10 in the archive room continues to receive a signal from the tag 3 attached to the same document 1 for a certain period of time, the person who viewed the document 1 will receive the information written in the document 1. It is conceivable that information is stolen by taking notes, taking pictures, etc., and browsing documents 1 are left on the desk.

  When the reading device 10 in the library room continues to receive the signal from the tag 3 attached to the document 1 for a certain time (YES in step Si15), the web camera 11 in the library room takes a picture. The image is recorded on the server device 30 (step Si16). Thereby, it is possible to specify who performed what action in the archive room from the recorded photographed image. Next, a warning signal is issued to urge the person in charge inside and outside the library to deal with the act of stealing information written on important documents and the situation where important documents themselves are left untreated (step Si17). Further, when both the determination condition of step Si13 and the determination condition of step Si15 are NO, the process returns to step Si5 in FIG. 23 and the above-described processing is repeated.

  According to the first to fourth embodiments described above, since an image taken by a web camera is stored, it can be grasped who has taken out the document from the archive at what time. In addition, a warning signal can be issued when a document is taken out of a library room that is permitted to view the document, thereby preventing the document from being taken out. It can also be used with or without a door in the library. Furthermore, by giving a tag to a person in a building with a library room, a person who has taken out a document from the library can be identified by a signal transmitted from the tag possessed by the person.

It is a schematic diagram which shows the structure of the library management system by embodiment of this invention. In this 1st Embodiment, it is a perspective view of the library room for demonstrating the relationship between the number of web cameras 11, and position specification. It is a schematic diagram for demonstrating the condition which browses the document 1 taken out from the library 2, and handles the document 1 after that. It is a block diagram which shows the structure of the tag (and reader) of the library management system by this 1st Embodiment. 6 is a flowchart for explaining an operation when the light receiving element 5 mounted on the tag 3 is used according to the first embodiment. In this 1st Embodiment, it is a flowchart for demonstrating operation | movement when the information of the light receiving element 5 cannot be utilized well. In this 1st Embodiment, it is a flowchart for demonstrating operation | movement when the information of the light receiving element 5 cannot be utilized well. 5 is a flowchart for explaining processing operations for a web camera and a captured image in the first embodiment. 5 is a flowchart for explaining processing operations for a web camera and a captured image in the first embodiment. It is a perspective view which shows how the reading apparatus in this 1st Embodiment is installed in the building provided with the library room. It is a conceptual diagram which shows how the management apparatus 20 handles the readers 10, 10a-10i. 4 is a schematic diagram showing an operation / display screen of the management apparatus 20. FIG. It is a conceptual diagram which shows the operation | movement which searches a library and a document by this 1st Embodiment. It is a flowchart for demonstrating a series of operation | movement which takes out a document based on the location of the document accommodated in the library examined from the search of a document. It is a schematic diagram which shows the structure of the library management system in the library without a door by this 2nd Embodiment. It is a flowchart for demonstrating operation | movement of the library management system by this 2nd Embodiment. It is a flowchart for demonstrating search operation | movement of the document to browse in the library without a door by this 2nd Embodiment. It is a flowchart for demonstrating operation | movement of the tag 3 by this 2nd Embodiment. It is a schematic diagram which shows the structure of the management system in case the lock | rock is in the door of a library by this 3rd Embodiment. It is a flowchart for demonstrating operation | movement of the library management system by this 3rd Embodiment. It is a flowchart for demonstrating operation | movement of the library management system by this 3rd Embodiment. It is a perspective view which shows how the reader of the library management system by this 4th Embodiment is installed in the building (3rd floor part) provided with the library room. It is a flowchart for demonstrating operation | movement of the library management system by this 4th Embodiment. It is a flowchart for demonstrating operation | movement of the library management system by this 4th Embodiment. It is a block diagram which shows the structure of the archive management system by a prior art.

Explanation of symbols

1 Document 2, 50, 60 Archive 2a, 60a Door 3, 80, 90 Tag 4, 81 Light emitting element 5, 82 Light receiving element 6, 83 Vibration sensor 10 Reading device 11 Web camera 20 Management device 30 Server device 61 Key 70 Key storage Storage

Claims (3)

A library management system for managing the entry and exit of documents stored in the library,
A first tag attached to the document and comprising a first detection means for detecting a change in the state of the document; and a first transmission / reception means for transmitting and receiving information wirelessly;
A first determination unit that determines that the document to which the first tag is attached is taken out of the archive when a change in the state of the document is detected by the first detection unit;
A second tag that is attached to the door of the library and includes a second detector that detects a change in the state of the door of the library, and a first transmitter / receiver that transmits and receives information wirelessly;
When the second detection means detects a change in the state of the library door, the second detection means determines that the library door is opened,
When it is determined by the first determination means that the document has been taken out of the archive, or when it is determined by the second determination means that the library door has been opened, or both Photographing means for photographing the vicinity of the library ;
A third tag carried by a user who has a third transmission / reception means for transmitting / receiving information wirelessly and may handle a document stored in the library;
A reading unit installed in the library room and wirelessly transmitting and receiving information to and from the third tag;
When the reading unit receives a transmission signal from the third tag, the reading unit shortens the transmission interval from either the first tag or the second tag or both. Includes a transmission control means for increasing the transmission interval from either the first tag or the second tag or both when the transmission signal from the third tag is not received. A featured archive management system. A fourth tag attached to a key for locking the door of the library, comprising a fourth transmission / reception means for transmitting and receiving information wirelessly;
A reading unit installed in a library room and wirelessly transmitting and receiving information to and from the fourth tag;
When the reading means receives a transmission signal from the fourth tag, the reading means shortens the transmission interval from either the first tag or the second tag or both. Further comprising transmission control means for increasing the transmission interval from either the first tag or the second tag or both when the transmission signal from the third tag is not received. The archive management system according to claim 1 . The imaging means, the reading means is the third tag or upon receiving a transmission signal from said fourth tag library of claim 1, wherein to shorten the photographing interval around archive, Management system.

Images