JP2015022513A - Document sharing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a document sharing system in which security of a file is improved.SOLUTION: A document sharing system 1 performs radio connection using a first radio terminal 3 among the first radio terminal 3 and second radio terminals 4-6 belonging to a group sharing a document as an access point, and distributes the document to from the first radio terminal 3 to the second radio terminals 4-6. The second radio terminals 4-6 receives a document with a key distributed by the first radio terminal 3 and automatically stores it in a predetermined storage area, and then receives a distributed conference holding notification and transmits login information necessary for participating in a conference, and browses the document with the key on the basis of a document browsing key transmitted from the first radio terminal 3 when login authentication is successful.

Description

  The present invention relates to a document sharing system.

  A conference system is known in which materials are shared only by a tablet terminal possessed by a participant without using an authentication server which is an external network. In that case, the meeting material is distributed in advance by the organizer of the meeting to the participants by e-mail or the like (Patent Document 1).

JP 2004-096495 A

  However, in the method of distributing conference materials in advance by e-mail or the like, if the e-mail is erroneously transmitted, a person unrelated to the conference can freely browse the materials stored in the conference terminal. Also, there is a risk that anyone will view the material after the meeting. Furthermore, there is a problem because the security of the file cannot be ensured by the authentication server or the like.

  SUMMARY An advantage of some aspects of the invention is that it provides a document sharing system that improves file security.

  In order to solve the above problems, (1) the present invention establishes wireless connection using the first wireless terminal as an access point among the first wireless terminal and the second wireless terminal belonging to the group sharing the document. And a document sharing system for distributing the document from the first wireless terminal to the second wireless terminal, wherein the second wireless terminal is a key distributed by the first wireless terminal. When the attached document is received, the first meeting is automatically saved in a predetermined storage area, and when the meeting notification to be subsequently distributed is received, login information necessary for participation in the meeting is transmitted, and login authentication is established, whereby the first meeting is performed. There is provided a document sharing system for browsing the keyed document based on a document browsing key transmitted from a terminal.

(2) The second wireless terminal acquires access authority information in addition to the document browsing key from the first wireless terminal, and after the login authentication, the second wireless terminal within the allowable range based on the access authority information. The document sharing system according to (1) is characterized in that the document is stored or deleted.

(3) The first wireless terminal performs the login authentication based on the login information including a user name, a password, and connection information of the access point. (1) or (2) Provide a document sharing system.

  According to the present invention, it is possible to provide a document sharing system in which file security is improved.

It is a figure which shows the structure of the document sharing system by embodiment of this invention. It is a block diagram which shows the structure of the radio | wireless terminal of FIG. It is an operation | movement sequence diagram at the time of meeting holding of the document sharing system by embodiment of this invention. It is an operation | movement sequence diagram (at the time of normal completion) at the time of the material collection of the document sharing system by embodiment of this invention. Operation sequence diagram at the time of document collection of the document sharing system according to the embodiment of the present invention (when abnormal termination)

  DESCRIPTION OF EMBODIMENTS Hereinafter, a mode for carrying out the present invention (hereinafter referred to as this embodiment) will be described in detail with reference to the accompanying drawings. Note that the same numbers are assigned to the same elements throughout the description of the present embodiment.

FIG. 1 is a diagram showing a configuration of a document sharing system according to the present embodiment. As shown in FIG. 1, the document sharing system 1 according to the present embodiment includes a mail server 2 and a plurality of wireless terminals 3 to 6 having a connection environment in which the mail server 2 and the access point are the same.
In the document sharing system 1, any one of a plurality of wireless terminals 3 to 6 belonging to a group sharing a document operates as an access point. Then, the document is distributed from the wireless terminal serving as the access point to other wireless terminals.

Here, the wireless terminal 3 (hereinafter also referred to as the first wireless terminal) operating as the same access point is the parent device, and the wireless terminals 4 to 6 (hereinafter also referred to as the second wireless terminal). Although defined as a slave unit, in the document sharing system of the present embodiment, the configurations of the wireless terminals 3 to 6 are all the same. Therefore, any of the wireless terminals 3 to 6 can be a parent device or a child device.
In FIG. 1, for example, when the wireless terminal 4 serving as the slave unit receives the keyed document distributed by the wireless terminal 3, the wireless terminal 4 automatically stores it in a predetermined storage area, and subsequently receives the conference opening notification distributed, The login information necessary for participation in the conference is transmitted, and when the login authentication is established, the keyed document is browsed based on the document browse key transmitted from the wireless terminal 3. Details will be described later.

  FIG. 2 is a block diagram showing the configuration of the wireless terminals 3 to 6 in FIG. As shown in FIG. 2, the wireless terminal 3 includes a display unit 11, an operation unit 12, a storage unit 13, a control unit 14, and a wireless communication unit 15. As described above, the wireless terminals 4 to 6 also have the same configuration as the wireless terminal 3. Note that a program for executing the document sharing system 1 is installed in each of the wireless terminals 3 to 6 in advance.

  The display unit 11 displays an authentication request screen or a document acquired by downloading. For example, LCD (Liquid Crystal Display) and organic EL (Organic Electro-Luminescence) are used.

  The operation unit 12 includes, for example, a keyboard and a mouse, and captures a user's instruction for obtaining intention to participate in a conference and downloading by downloading a document, which is input from a keyboard, an icon, or the like displayed on the display unit 11.

  The storage unit 13 is mounted with, for example, SRAM, DRAM, and flash memory, and a storage area is allocated in addition to the above-described program area in which the program is stored. Accordingly, various data generated in the course of executing the authentication password program are stored.

  For example, the control unit 14 is mounted with a microprocessor, and sequentially reads and executes a program stored in the storage unit. First, when a keyed document distributed by a first wireless terminal (for example, wireless terminal 3) is received, it is automatically saved in a predetermined storage area, and subsequently, when a meeting opening notification distributed from the wireless terminal 3 is received, Send login information required to join the meeting. When the login authentication is established at the wireless terminal 3, the keyed document is browsed based on the document browse key transmitted from the first conference terminal 3.

  Further, the control unit 14 acquires access authority information in addition to the document browsing key from the first wireless terminal, and saves or deletes the document within the allowable range based on the access authority information after login authentication. The control unit 14 also performs login authentication based on login information including a user name, a password, and access point connection information.

  The wireless communication unit 15 is a communication interface between the other wireless terminals 3 to 6 and the mail server 2.

  Hereinafter, the operation of the document sharing system 1 of the present embodiment will be described. In FIG. 3, first, the wireless terminal 3 serving as the parent device transmits a conference participation list and a password-added keyed document (meeting material) to the mail server 2 (step S11). The mail server 2 that has received the material transmits the material to the wireless terminals 4 to 6 as the slave units (steps S12 to S14). At this time, the wireless terminal 3 also designates a path (storage destination) for storing the document. Normally, the wireless terminals 4 to 6 that receive the mail do not display the contents of the keyed document that is an attached file, but are automatically saved in the designated path (step S15). Note that the path designated by the wireless terminal 3 may be downloaded by describing the download destination in the body of the mail.

  Next, the wireless terminal 3 transmits a conference opening notification to the wireless terminals 4 to 6 (steps S16 to S18). Next, the wireless terminals 4 to 6 that have received the conference opening notification individually respond to the wireless terminal 3. This response is returned only when participating in the conference, and is not responded when not participating. For example, the wireless terminals 4 and 5 respond that they join the conference (steps S19 and S20, respectively), and the wireless terminal 6 does not respond because it does not participate. Here, the response to participate means that the wireless terminals 4 and 5 that wish to participate transmit a user name, an authentication password, and access point identification information to the wireless terminal 3.

  Receiving this, the wireless terminal 3 determines the permitted user name, password, and access point identification information (SSID (Service Set Identifier) or MAC address (Media Access Control address)) stored in the storage unit 13. If they match, the participation in the conference is approved (step S21). This will prepare the environment for the conference.

Next, the wireless terminal 3 transmits to the wireless terminals 4 and 5 a file browsing key and access authority information necessary for opening the keyed document transmitted previously in connection with the holding of the meeting (steps S22 and S23).
Next, the wireless terminal 3 that is the parent device instructs the wireless terminals 4 and 5 that are the child devices to share files (steps S24 and S25). As a result, the keyed document opened by the file browsing key is displayed in conjunction with the wireless terminals 4 and 5 as well as the wireless terminal 3. Accordingly, as the conference proceeds, the same screen is simultaneously displayed on the wireless terminals 3 to 5 participating in the conference, so that documents can be shared.

Next, the relationship between the authentication key and the keyed document will be described.
In the present embodiment, the keyed document is opened by the authentication key notified to the participant by the viewer. For example, the organizer creates a table (not shown) that associates the relationship between the authentication key and the document file to be used in the storage unit 13 prior to the meeting. Note that during the meeting, whenever the organizer changes the file, it is opened by an operation for notifying the participant of the authentication key associated with the file.

  FIG. 4 is an operation sequence diagram (at the time of normal end) at the time of collecting materials in the document sharing system according to the embodiment of the present invention. Hereinafter, with reference to FIG. 4, an operation (at the time of normal termination) at the time of material collection of the document management system 1 of this embodiment will be described in detail.

  When the conference ends, the wireless terminal 3 transmits an end notification to the wireless terminals 4 and 5, so that the conference ends normally. At that time, the wireless terminal 3 transmits a material deletion instruction to each of the wireless terminals 4 and 5 (step S31). The wireless terminals 4 and 5 that have received the deletion request delete the material stored in the storage unit 13 by the control unit 14 (step S32). This makes browsing impossible after that. In other words, the above-described deletion of the material is automatically performed without intervention of the participant.

  FIG. 5 is an operation sequence diagram (at the time of abnormal termination) during document collection of the document sharing system according to the embodiment of the present invention. Hereinafter, with reference to FIG. 5, the operation (at the time of abnormal termination) at the time of collecting materials of the document sharing system 1 of the present embodiment will be described in detail.

  For example, when the connection is cut off when the wireless terminal 4 leaves the conference or the like, the control unit 14 of the wireless terminal 3 detects that the communication with the wireless terminal 4 is cut off after the communication is disconnected (step S41). Similarly, the wireless terminal 5 detects that its own communication has been interrupted (step S42). Next, the communication control unit 34 transmits an instruction to delete the material to the authentication information management unit 33, and the wireless terminal 3 that has received the deletion instruction activates a timer to count the time since the communication is cut off. Start (step S43). Thereafter, after a predetermined time has elapsed, the material is deleted (step S44). It should be noted that the deletion of the material is performed by reading the hard disk and the external memory by the control unit 14 and securely deleting the data.

  Note that the wireless terminals 4 and 5 may be able to view the keyed document even after the conference ends depending on the access authority information received from the wireless terminal 3 first. In that case, it is necessary to save the authentication password, and if browsing is impossible, the keyed document is deleted. For example, when the organizer sets access authority for each chapter or section constituting the keyed document, browsing of the keyed document can be partially released. In addition, during the conference, the wireless terminal 3 periodically notifies the wireless terminals 4 and 5 of the authentication password, and can be updated by updating the password every time.

The effects of the embodiment described above will be described.
Compared to the prior art, the present invention is a user who can view a file by having the wireless terminal 3 (master unit) as an organizer serve as an access point and serve as an authentication server for the wireless terminals 4 and 5. And automatically save the keyed document in a predetermined storage area, and send the file browsing key and access authority information necessary to open the keyed document at the time of the conference, so that the file can participate Only the person who can see it will be able to view it. Furthermore, it is possible to improve the security of the file by reliably deleting the material downloaded to the wireless terminal during the meeting.

  In addition, in this embodiment, although the wireless terminal 3-6 was mentioned as an example and demonstrated in this embodiment, it is not limited to this, If it is a terminal which has a communication interface, for example, a tablet terminal and a smart phone Or a personal computer.

  As mentioned above, although preferred embodiment of this invention was explained in full detail, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiments. Further, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Document sharing system 2 Mail server 3-6 Wireless terminal 11 Display part 12 Operation part 13 Storage part 14 Control part 15 Wireless communication part

Claims (3)

Of the first wireless terminal and the second wireless terminal belonging to the group sharing the document, wireless connection is performed using the first wireless terminal as an access point, and the first wireless terminal is transferred to the second wireless terminal. A document sharing system for delivering the document to the system,
The second wireless terminal is
When a keyed document distributed by the first wireless terminal is received, it is automatically stored in a predetermined storage area, and when a subsequent conference notification is received, login information necessary for participation in the conference is transmitted and login is performed. A document sharing system for browsing the keyed document based on a document browsing key transmitted from the first wireless terminal when authentication is established. The second wireless terminal is
The access authority information in addition to the document browsing key is acquired from the first wireless terminal, and after the login authentication, the document is stored or deleted within an allowable range based on the access authority information. Item 1. The document sharing system according to Item 1. The first wireless terminal is
The document sharing system according to claim 1, wherein the login authentication is performed based on the login information including a user name, a password, and connection information of the access point.

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