JP5712634B2 - Relay device, relay method, and program - Google Patents

Description

  The present invention relates to a relay apparatus, a relay method, and a program for transmitting data acquired from the outside to an image projection apparatus.

  When outputting an image with an image projection apparatus such as a projector, the image projection apparatus itself does not hold data, but outputs desktop information of a notebook PC (personal computer) or data stored in a USB (Universal Serial Bus) memory. Technology is known.

However, conventional image projection apparatuses have the following problems, for example.
(1) You must own a notebook PC.
(2) All necessary data must be recorded in advance in the USB memory.
(3) Recording data on a notebook PC or USB memory and carrying it takes time and there is a risk of information leakage.

  Therefore, if the video output by the image projection apparatus can be performed when necessary without using the PC and carrying the video data, the load on the user can be reduced. In order to solve such a problem, a technique in which a device (projector) and a data storage (server or PC) communicate directly is known. For example, Patent Document 1 and Patent Document 2 propose a technique for acquiring presentation materials from an external database such as a server in order to improve usability and security.

  However, in the related art, when a plurality of projectors are used, it is necessary to set a storage server (external database) for each projector. For this reason, the setting at the time of introduction or transfer of the projector becomes complicated. Further, when the setting of the storage server is changed, it is necessary to change the settings of all the projectors used. Furthermore, each time the type of storage server increases, the projector needs to follow them.

  The present invention has been made in view of the above, and an object of the present invention is to provide a relay device, a relay method, and a program that can reduce the load of setting processing of an image projection device.

In order to solve the above-described problems and achieve the object, the present invention provides a relay apparatus connected to a document management apparatus including a storage unit that stores a document and an image projection apparatus that projects an image of the document. there, the user information acquisition section for acquiring user identification information for identifying a user from the image projection device, an authentication unit for authenticating the access of the user by the user identification information for the document management apparatus, access the user A list acquisition unit for acquiring list information indicating the list of documents from the authenticated document management apparatus; document identification information for identifying the documents included in the list information; and address information of the document management apparatus. a storage control unit for storing in association with the storage unit, specifies the address information corresponding to the specified the document identification information, wherein the identified said address information A document acquisition unit that acquires the document from the book management system, characterized in that it comprises, a document transmitting unit for transmitting the acquired document to the image projection apparatus.

The present invention is also a relay method executed by a relay device connected to a document management device including storage means for storing a document and an image projection device that projects an image of the document, the image projection A user information acquisition step for acquiring user identification information for identifying a user from the device; an authentication step for authenticating the user access to the document management device based on the user identification information; and the document management for which the user access is authenticated. A list acquisition step for acquiring list information indicating the list of documents from the apparatus, document identification information for identifying the documents included in the list information, and address information of the document management apparatus in association with each other in the storage unit A storage control step for storing, and the address information corresponding to the specified document identification information is specified, and the specified address information A document acquisition step of acquiring the document from the document management apparatus, characterized in that it comprises a and a document transmitting step of transmitting the acquired document to the image projection apparatus.

In addition, the present invention provides a user identification for identifying a user from the image projection device, a relay device connected to a document management device including a storage unit that stores the document, and an image projection device that projects an image of the document. A user information acquisition unit that acquires information; an authentication unit that authenticates the user's access to the document management device based on the user identification information; and a list of documents from the document management device that is authenticated for the user's access. A list acquisition unit that acquires list information, a document control information that identifies the document included in the list information, and a storage control unit that stores the address information of the document management device in association with each other, and a designation document acquisition unit that is identified with the address information corresponding to the document identification information to obtain the document from the document management apparatus specified the address information Is a program for functioning the acquired document as document transmitter, which transmits to the image projection apparatus.

  According to the present invention, there is an effect that it is possible to reduce the load of the setting process of the image projection apparatus.

FIG. 1 is a block diagram illustrating a configuration example of a communication system including a relay device according to the present embodiment. FIG. 2 is a block diagram illustrating a hardware configuration example of the projector. FIG. 3 is a block diagram illustrating a functional configuration example of the projector. FIG. 4 is a block diagram illustrating a hardware configuration example of the relay server. FIG. 5 is a block diagram illustrating a functional configuration example of the relay server. FIG. 6 is a sequence diagram showing the overall flow of document data relay processing in this embodiment. FIG. 7 is a diagram illustrating an example of a data structure of a projected document list. FIG. 8 is a diagram illustrating an example of the data structure of the correspondence table. FIG. 9 is a sequence diagram showing another example of document data relay processing in the present embodiment. FIG. 10 is a sequence diagram showing another example of document data relay processing in the present embodiment.

  Exemplary embodiments of a relay device, a relay method, and a program according to the present invention will be explained below in detail with reference to the accompanying drawings.

  In this embodiment, an image projection apparatus (projector) and a document management apparatus (storage server) that manages documents communicate via a relay apparatus (relay server). In other words, the projector acquires a projection target document from the storage server via the relay server. Accordingly, if only the access to the relay server is set in the projector, the document of the storage server can be used via the relay server without the need to make a special setting for the plurality of storage servers.

  FIG. 1 is a block diagram illustrating a configuration example of a communication system including a relay device according to the present embodiment. As shown in FIG. 1, the communication system according to the present embodiment has a configuration in which a relay server 100, a projector 200, and a storage server 300 are connected via a network 400 such as a LAN (local area network). Yes.

  The form of the network 400 is not limited to the LAN, and any connection form such as the Internet can be applied. Further, for example, the relay device and the storage server may be provided in the cloud computing cloud, and the projector may be accessed from the projector.

  The storage server 300 is a server device that stores various documents. Although only one storage server 300 is illustrated in FIG. 1, it can be configured to include two or more storage servers 300. In the following description, a plurality of storage servers may be distinguished from each other with reference numerals like storage servers 300a, 300b,.

  The projector 200 is a device (image projection device) that outputs a document acquired from the storage server 300. In the present embodiment, the projector 200 acquires a document stored in the storage server 300 via the relay server 100.

  The relay server 100 is a server device that acquires a document stored in the storage server 300 and transfers (relays) the document to the projector.

  Next, the hardware configuration of the projector 200 will be described. FIG. 2 is a block diagram illustrating a hardware configuration example of the projector 200. As shown in FIG. 2, a projector 200 has a CPU (Central Processing Unit) 21, a memory 22, a nonvolatile memory 23, a projection device 24, a video input terminal 25, a network I / O as main hardware configurations. An F (interface) 26, an input device 27, and a bus 28 for connecting each unit are provided.

  The CPU 21 is an arithmetic device that controls the overall processing of the projector 200. The memory 22 stores data necessary for various processes by the CPU 21. The non-volatile memory 23 stores a program and the like for realizing various processes by the CPU 21.

  The projection device 24 is a device that projects data (documents) acquired from the storage server 300 or the like. For example, the projection device 24 projects the light emitted from the liquid crystal panel by enlarging it with an optical system including a lens or the like. Note that the projection method by the projection device 24 is not limited to this, and any conventionally used projection method such as a method using an LED (Light Emitting Diode) as a light source can be applied.

  The video input terminal 25 is an input terminal used when connecting to a PC or the like and receiving and projecting a video from the PC or the like. The network I / F (interface) 26 is an interface for connecting to an external device such as the relay server 100 via a network and transmitting / receiving data to / from the connected external device. The input device 27 is a device that receives an operation instruction from a user, and includes, for example, a button, a remote control receiving unit, and a card reader that reads information from an IC card or the like. Note that the input device 27 may be configured to include a keyboard.

  FIG. 3 is a block diagram illustrating a functional configuration example of the projector 200. As shown in FIG. 3, the projector 200 includes an application unit 210, a processing unit 220, an OS (operating system) 230, a network I / F 26, a memory 22, a nonvolatile memory 23, a projection device 24, and an input. A device 27 and a video input terminal 25 are provided.

  The application unit 210 includes a PC data output application 211 and a document output application 212. The PC data output application 211 is an application used when acquiring and projecting data from a PC connected via the video input terminal 25. The document output application 212 is an application used when projecting a document acquired from the storage server 300 via the network I / F 26 and the relay server 100.

  The processing unit 220 includes a projection control unit 221, a user information reading unit 222, a document data acquisition unit 223, and a relay server management unit 224.

  The projection control unit 221 controls processing for projecting a document instructed by the PC data output application 211 and the document output application 212 onto the projection device 24.

  The user information reading unit 222 controls processing for reading user information via the input device 27. The user information includes user identification information for identifying the user. User information is used when a user is authenticated. For example, the user information reading unit 222 reads user information stored in the IC card using a card reader. Note that the user information reading unit 222 may be configured to acquire user information input from a keyboard or the like.

  The document data acquisition unit 223 receives (acquires) the document acquired by the relay server 100 from the storage server 300 and transferred via the network I / F 26.

  The relay server management unit 224 registers and manages the address information of the relay server 100 in a storage unit such as the nonvolatile memory 23. Thus, in this embodiment, at least only the address information of the relay server 100 needs to be registered in the projector 200, and there is no need to register the address information of each storage server 300 as in the conventional case.

  The OS 230 is a program that manages the hardware and software of the projector 200. The OS 230 performs activation of programs corresponding to the processing unit 220 and the application unit 210, control of access to the memory 22 / nonvolatile memory 23, and the like. The application unit 210 controls hardware such as the memory 22, the nonvolatile memory 23, the projection device 24, the video input terminal 25, and the network I / F 26 via the processing unit 220 and the OS 230.

  Next, the hardware configuration of the relay server 100 will be described. FIG. 4 is a block diagram illustrating a hardware configuration example of the relay server 100. As shown in FIG. 4, the relay server 100 includes a CPU 11, a memory 12, an HDD (Hard Disk Drive) 13, a display device 14, an input device 15, and a network I / F 16 as main hardware configurations. , And a bus 17 for connecting each part.

  The CPU 11 is an arithmetic device that controls the overall processing of the relay server 100. The memory 12 stores data necessary for various processes by the CPU 11. The HDD 13 stores a program for realizing various processes by the CPU 11. The display device 14 is a device that displays various messages, operation states, and the like, and includes, for example, a liquid crystal display. The input device 15 is a device that receives an operation instruction from a user, and includes, for example, a mouse and a keyboard. The network I / F 16 is an interface for connecting to external devices such as the projector 200 and the storage server 300 via a network and transmitting / receiving data to / from the connected external devices.

  FIG. 5 is a block diagram illustrating a functional configuration example of the relay server 100. As illustrated in FIG. 5, the relay server 100 includes an application unit 110, a processing unit 120, an OS 130, a network I / F 16, a memory 12, an HDD 13, a display device 14, and an input device 15. ing.

  The application unit 110 includes a remote interface application 111, a user information setting application 112, and a document acquisition application 113.

  The remote interface application 111 is an application that provides the projector 200 with an interface for using the relay server 100. The user information setting application 112 is an application for registering user information in the HDD 13 or the like. The user information setting application 112 is used, for example, to store information required for converting user information (user identification information) transmitted from the projector 200 into user information used for authentication of the storage server 300 in the HDD 13. The document acquisition application 113 is an application that accesses the storage server 300 and acquires a desired document from the storage server 300.

  The processing unit 120 includes a user information management unit 121, a storage server management unit 122, and a document data acquisition unit 123.

  The user information management unit 121 registers and manages user information in a storage unit such as the HDD 13 in accordance with an instruction from the user information setting application 112 or the like. The user information management unit 121 functions as an authentication unit that authenticates user access to the storage server 300 using the user information.

  The storage server management unit 122 registers and manages storage server address information and the like in a storage unit (address storage unit) such as the HDD 13. The storage server management unit 122 may be configured to dynamically detect the connected storage server 300 and register the address information of the detected storage server 300 (detection unit). Further, the storage server management unit 122 updates the address information stored in the storage unit when an instruction to change the connected storage server 300 is given (update unit).

  The document data acquisition unit 123 acquires a document list and documents from the storage server 300 via the network I / F 26 (list acquisition unit, document acquisition unit). The document list is information indicating a list of documents stored in the storage server 300.

  The OS 130 is a program that manages the hardware and software of the relay server 100. The OS 130 activates programs corresponding to the processing unit 120 and the application unit 110, controls access to the memory 12 / HDD 13, and the like. The application unit 110 controls hardware such as the memory 12, the HDD 13, the display device 14, the input device 15, and the network I / F 16 via the processing unit 120 and the OS 130.

  Next, document data relay processing by the relay server 100 according to the present embodiment configured as described above will be described with reference to FIG. FIG. 6 is a sequence diagram showing the overall flow of document data relay processing in this embodiment.

  The projector 200 transmits user information to the relay server 100 for login authentication (step S11). For example, the projector 200 transmits user information read from an IC card owned by the user by the user information reading unit 222 to the relay server 100.

  When receiving the user information, the remote interface application 111 of the relay server 100 acquires address information (hereinafter referred to as connection information) for connecting to the storage server 300 from the storage server management unit 122 (step S12). The connection information is, for example, the IP address of the storage server 300.

  The remote interface application 111 transmits the received user information and the acquired connection information to the user information management unit 121 (step S13). The user information management unit 121 transmits user information for login authentication to each of the connected storage servers 300 using the acquired connection information (steps S14 and S15). FIG. 6 illustrates an example in which two pieces of connection information are acquired and user information is transmitted to each of the two storage servers 300a and 300b using the two pieces of connection information.

  If the user information transmitted from the projector 200 is different from the user information used for login authentication by the storage server 300, the user information transmitted from the projector 200 is converted into a format used for login authentication and transmitted. May be. For example, the user information before conversion and after conversion may be stored in the HDD 13 or the like, and the user information management unit 121 may convert the user information with reference to the stored information.

  When the login authentication is successful, the projector 200 requests the relay server 100 to obtain a document list in accordance with a designation from the user (step S16). Upon receiving the request, the remote interface application 111 of the relay server 100 requests the document data acquisition unit 123 to acquire the document list (step S17). At this time, the remote interface application 111 transmits the connection information of the storage server 300 acquired in step S12 to the document data acquisition unit 123.

  Using the received connection information, the document data acquisition unit 123 requests the connected storage servers 300a and 300b to acquire a document list (steps S18 and S19).

  Each of the storage servers 300a and 300b transmits a document list, which is information representing a list of documents stored in the own device, to the relay server 100 (steps S20 and S21).

  The document data acquisition unit 123 of the relay server 100 transmits the received document list to the projector 200 via the remote interface application 111 (steps S22 and S23). The document data acquisition unit 123 may transmit one document list obtained by integrating the received document list to the projector 200. Alternatively, the document data acquisition unit 123 may transmit the received document list as it is to the projector 200 without integrating the document list, and integrate the document list in the projector 200.

  The projector 200 projects the received document list by the projection device 24 (step S24). FIG. 7 is a diagram illustrating an example of a data structure of a projected document list. As shown in FIG. 7, the document list includes an identifier (document identification information) for identifying a document, a document title, and a thumbnail image (thumbnail) of the document. Note that the data structure of the document list is not limited to this.

  Returning to FIG. 6, when the user designates a document from the projected document list using the input device 27, for example, the projector 200 requests the relay server 100 to acquire the designated document (step S25). At this time, the projector 200 transmits the identifier of the designated document to the relay server 100.

  When receiving the document acquisition request, the remote interface application 111 of the relay server 100 requests the document data acquisition unit 123 to acquire the document with the received identifier (step S26). The document data acquisition unit 123 specifies the storage server 300 that stores the document with the requested identifier, and requests the specified storage server 300 to acquire the document with the identifier (step S27).

  For example, when the document data acquisition unit 123 receives the document list in steps S20 and S21, the identifier of each document included in the document list is associated with the connection information of the storage server 300 that stores each document. The correspondence table is stored in a storage unit such as the HDD 13. Then, the document data acquisition unit 123 specifies the storage server 300 that stores the document with the requested identifier with reference to the correspondence table. FIG. 8 is a diagram illustrating an example of the data structure of the correspondence table.

  Returning to FIG. 6, the storage server 300a receiving the request transmits the document with the requested identifier to the relay server 100 (step S28). FIG. 6 shows an example in which the storage server 300a stores the requested document.

  The document data acquisition unit 123 transmits the received document to the projector 200 via the remote interface application 111 (Steps S29 and S30). The projector 200 projects the received document by the projection device 24 (step S31).

  Next, an example of document data relay processing when using a plurality of projectors 200 will be described. FIG. 9 is a sequence diagram showing another example of document data relay processing in the present embodiment. FIG. 9 shows an example in which two projectors 200a and 200b access two storage servers 300a and 300b.

  First, the remote interface application 111 of the relay server 100 sets connection information for each of the two storage servers 300a and 300b to be connected (steps S41 and S42).

  The projector 200a sets connection information (address information) of the relay server 100 by the relay server management unit 224a in the projector 200a (step S43). For example, the relay server management unit 224 registers the connection information of the relay server 100 input by the user in a storage unit such as the nonvolatile memory 23.

  Steps S44 to S64 are the same as steps S11 to S31 in FIG.

  On the other hand, the other projector 200b sets connection information (address information) of the relay server 100 by the relay server management unit 224b in the projector 200b (step S65). Thereafter, when projecting a document, the projector 200b transmits user information to the relay server 100 for login authentication (step S66). When receiving the user information, the remote interface application 111 of the relay server 100 acquires connection information for connecting to the storage server 300 from the storage server management unit 122 (step S67). Since the subsequent processing is the same as that of the projector 200a, the description thereof is omitted.

  Thus, according to the present embodiment, each projector 200 (projectors 200a and 200b) accesses the storage server 300 via the relay server 100. Therefore, the projector 200 only needs to make settings for accessing the relay server 100 (steps S43 and S65). Information for accessing the storage server 300 may be set only for the relay server 100 (steps S41 and S42). That is, since the settings are concentrated on the relay server, it is possible to reduce the trouble of setting the plurality of projectors 200 that use the document of the storage server 300. For example, the effect of reducing the number of man-hours for reviewing the settings of each projector 200 can be obtained when the projector 200 is initially introduced and when the floor is moved.

  Next, an example of document data relay processing when the storage server 300 that stores the document used by the projector 200 is changed will be described. FIG. 10 is a sequence diagram showing another example of document data relay processing in the present embodiment.

  First, the remote interface application 111 of the relay server 100 sets connection information of the storage server 300 to be connected (step S71). Here, it is assumed that the connection information of the storage server 300a is set in order to use the document of the storage server 300a.

  Thereafter, the projector 200 executes the following processing from step S72 to step S89 in order to project the document of the storage server 300a. In the example of FIG. 10, since only the connection information of the storage server 300a is set in step S71, transmission of user information for login authentication (step S75), request for document list (step S78), request for document (step S85). ) Is transmitted only to the storage server 300a, which is different from the example of FIG.

  Here, for example, it is assumed that the user desires to change the storage server 300 that stores the document used by the projector 200. In this case, the user updates the setting of the storage server 300 by operating the remote interface application 111 from a PC or the like connected to the relay server 100, for example.

  That is, the remote interface application 111 of the relay server 100 updates the connection information of the storage server 300 to be connected (step S90). Here, it is assumed that the storage server 300 to be connected is updated from the storage server 300a to the storage server 300b.

  In this case, when the projector 200 transmits user information for login authentication to the relay server 100 thereafter (step S91), the remote interface application 111 acquires connection information of the storage server 300b from the storage server management unit 122 (step S91). S92). In addition, the remote interface application 111 transmits the received user information and the acquired connection information to the user information management unit 121 (step S93). Then, the user information management unit 121 transmits user information for login authentication to the storage server 300b using the acquired connection information (step S94). The subsequent processing is the same as that in step S76 to step S89, and the description thereof is omitted.

  As described above, according to the present embodiment, even when the storage server 300 to be connected is switched, the projector 200 does not need to correct the setting. Further, for example, even when the storage server address, product, protocol, and compliant standard are changed, it is not necessary to change the settings of each projector so as to correspond to the change. Then, the corresponding storage server 300 can be corrected only by changing the setting of the relay server 100 that allows easy software update. That is, it is possible to reduce the setting processing load of the image projection apparatus.

  A program executed by the relay apparatus according to the present embodiment is an installable or executable file and is read by a computer such as a CD-ROM, a flexible disk (FD), a CD-R, or a DVD (Digital Versatile Disk). It is recorded on a possible recording medium and provided as a computer program product.

  Further, the program executed by the relay device of the present embodiment may be configured to be stored by being stored on a computer connected to a network such as the Internet and downloaded via the network. Further, the program executed by the relay apparatus of the present embodiment may be configured to be provided or distributed via a network such as the Internet.

  Further, the program of this embodiment may be configured to be provided by being incorporated in advance in a ROM or the like.

  The program executed by the relay device according to the present embodiment has a module configuration including the above-described units (application unit and processing unit). As actual hardware, the CPU reads the program from the storage medium and executes the program. As a result, the respective units are loaded onto the main storage device, and the respective units are generated on the main storage device.

11 CPU
12 Memory 13 HDD
14 Display device 15 Input device 16 Network I / F
17 Bus 21 CPU
22 Memory 23 Nonvolatile Memory 24 Projector 25 Video Input Terminal 26 Network I / F
27 Input device 28 Bus 100 Relay server 110 Application unit 111 Remote interface application 112 User information setting application 113 Document acquisition application 120 Processing unit 121 User information management unit 122 Storage server management unit 123 Document data acquisition unit 200 Projector 210 Application unit 211 PC data Output application 212 Document output application 220 Processing unit 221 Projection control unit 222 User information reading unit 223 Document data acquisition unit 224 Relay server management unit 300 Storage server

JP 2002-290605 A JP 2008-097168 A

Claims (8)

A relay device connected to a document management device comprising storage means for storing a document, and an image projection device for projecting an image of the document,
A user information acquisition unit for acquiring user identification information for identifying a user from the image projection device;
An authenticating unit for authenticating the user's access to the document management apparatus based on the user identification information;
A list acquisition unit for acquiring list information indicating a list of the documents from the document management apparatus with which the user's access is authenticated;
A storage control unit that stores the document identification information for identifying the document included in the list information and the address information of the document management device in association with each other in the storage unit;
A document acquisition unit that specifies the address information corresponding to the specified document identification information, and acquires the document from the document management device of the specified address information ;
A document transmission unit for transmitting the acquired document to the image projection device;
A relay device comprising: A list transmitting unit that transmits the pre-Symbol list information to the image projection apparatus,
A receiving unit that receives document identification information for identifying the document selected from the list from the image projection device;
The document acquisition unit acquires the document identified by the received document identification information from the document management apparatus;
The relay device according to claim 1. The list information includes a document name of the document and a thumbnail image of the document;
The relay device according to claim 1. A detection unit for detecting the connected document management device;
The authentication unit authenticates access of the user to the detected document management apparatus;
The relay device according to claim 1. Before SL authentication unit to authenticate the access of the user with respect to the said document management apparatus address information stored in the storage unit,
The relay device according to claim 1. An update unit that updates the address information stored in the storage unit ;
The authentication unit authenticates the user's access to the document management apparatus with the updated address information;
The relay device according to claim 5. A relay method executed by a relay device connected to a document management device including a storage unit that stores a document, and an image projection device that projects an image of the document,
A user information acquisition step of acquiring user identification information for identifying a user from the image projection device;
An authentication step of authenticating the user's access to the document management apparatus with the user identification information;
A list acquisition step of acquiring list information indicating a list of the documents from the document management apparatus to which the user's access has been authenticated;
A storage control step of storing the document identification information for identifying the document included in the list information and the address information of the document management apparatus in association with each other in the storage unit;
A document acquisition step of specifying the address information corresponding to the specified document identification information and acquiring the document from the document management device of the specified address information ;
A document transmission step of transmitting the acquired document to the image projection device;
The relay method characterized by including. A relay device connected to a document management device comprising a storage means for storing a document, and an image projection device for projecting an image of the document;
A user information acquisition unit for acquiring user identification information for identifying a user from the image projection device;
An authenticating unit for authenticating the user's access to the document management apparatus based on the user identification information;
A list acquisition unit for acquiring list information indicating a list of the documents from the document management apparatus with which the user's access is authenticated;
A storage control unit that stores the document identification information for identifying the document included in the list information and the address information of the document management device in association with each other in the storage unit;
A document acquisition unit that specifies the address information corresponding to the specified document identification information, and acquires the document from the document management device of the specified address information ;
A document transmission unit for transmitting the acquired document to the image projection device;
Program to function as.

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