JP2001184315A - Device and method for displaying information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To grasp the work conditions of all users participated in cooperative work by suitably displaying a work screen corresponding to the conditions of a collaboration among the users when a plurality of users cooperatively work. SOLUTION: Each of information processing terminals 3a, 3b, 3c, 3d, etc., has a synchronism start detector 13 for detecting synchronism start timing and instructing synchronous execution to a synchronizing device 17, the synchronizing device 17 for switching synchronous execution/synchronism cancel and screen information containing information such as the range or magnification power of present map display. When the synchronism start detector 13 detects a button for synchronous execution instruction is operated, synchronizing party is selected or voice is inputted to a voice input device 4, the synchronous execution is instructed to the synchronizing device 17. The synchronizing device 17 manually or automatically and selectively switches ad executes and one of synchronizing present map display range with the opposite side, synchronizing the present map display range to that of the opposite side and displaying a map within a range including the present map display range and the map display range of the other terminal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display device, and more particularly, to a case in which a unit such as a fire department, police, military, or business is deployed in a certain area to carry out unit activities. The present invention relates to a map-based information display device for performing on-site commanding and cooperative work among members.

[0002]

2. Description of the Related Art For example, when a fire brigade or a rescue squad is operating in a disaster area, the captain of each unit is responsible for the disaster situation at various places in the area in charge, the deployment locations and activities of individual members, and the status of other units. If information such as the deployment status can be accurately grasped in real time, it will be easy to conduct effective unit command. Individual members will be able to carry out their duties most effectively if they can accurately obtain information such as the positions and activities of other members and the status of disasters in other places. The headquarters that controls a plurality of units needs the above-mentioned various information on the plurality of units.

[0003] As one of the methods for creating field information to support such a unit activity, each member operating in a remote place uses his / her own activity map on the same electronic map. A method of writing site information in a range, that is, writing information in an electronic map in a coordinated manner is conceivable.

[0004] When each of the distant members works in a coordinated manner, the intention and work sharing range and the like between the members are checked (hereinafter, referred to as "the members").
Collaboration). Collaboration is generally performed by conversation, but when writing information on an electronic map cooperatively, it is performed while talking.
As a display method of the map image in this cooperative work, the display range for all the members is set to be the same as the display range of the specific member (hereinafter, referred to as “synchronize”), or the display range for each member is individually set. A method of making them independent is conceivable.

[0005]

However, each of the above display methods has the following problems.

In the method of synchronizing the display ranges, the input operation of a specific member is always visible to other members, and the correction and deletion operations of the data input process which are not particularly required to be displayed are displayed to other members. Therefore, such drawing processing imposes a burden on the CPU of the computer of the other member, and hinders the work of the other member. Also, when the work range of each member is different, the display range is also synchronized, so if a specific member changes the display range to his own work range or his favorite magnification, another The members cannot work at all.

[0007] In the method of making the display range independent, in order for each member to display the same point, it is necessary to exchange information by conversation and manually adjust the display position.
In that case, the display ranges may not always completely match. For this reason, the range in which one member is working may not be displayed to other members, and each member may not be able to confirm the work status of each other. Also, when notifying the other party of the location where the information was written,
Since a demonstrative pronoun such as "there" is often used, if the display ranges do not completely match, the content spoken by the other party may not be understood in some cases.

[0008] Further, a problem common to both of these display methods is that only the work range of one's own or a specific worker is displayed, that is, only one work range is displayed. There is a thing that cannot grasp whether it is. As a countermeasure, it is conceivable to prepare two display screens on a display, display a screen whose display range is synchronized on one side, and display a screen whose display range is independent on the other side. Obviously, it is not practical because it is difficult to display two screens due to the size of the screen, and the addition of screen processing is doubled.

[0009] Therefore, an object of the present invention is to display a work screen appropriately in accordance with the situation of collaboration between users when a plurality of users work collaboratively.

Another object of the present invention is to make it possible to grasp the work status of all users participating in a cooperative work.

[0011]

An information display device according to the present invention is an information display device capable of communicating directly or indirectly with another information display device (indirectly, for example, via a server). Detecting means for detecting an event, setting means for selecting and setting one display method from a plurality of predetermined display methods based on the type of the detected event, and displaying data by the set display method. Display means for performing the operation.

According to the present invention, for example, one display method is selected from a plurality of display methods based on the type of event according to the collaboration situation, so that suitable data display according to the collaboration situation is possible. become.

In a preferred embodiment, the predetermined plurality of display methods include a synchronization method for matching the data display range of the user and the data display range of the partner, and a data display range of the partner and the user. And an independent asynchronous method. The synchronization method includes a first display method of making the display range of the data displayed by the user the same as the display range of the information display device of the other party, and displaying the display range of the data displayed by the information display apparatus of the other party. There is a second display method for making the display range the same as the display range of the data displayed on the device.

In a preferred embodiment, the predetermined plurality of display methods include a display range of data displayed by the user in another display method and a display range of data displayed on the information display device of the other party. An inclusive display method for displaying a range is included.

In the preferred embodiment, the data is map data.

In a preferred embodiment, the event is an end of designation of a communication partner by the user, setting of a display method by the user, or voice input by the user, and the setting means sets the display method in response to the event. Switch.

In a preferred embodiment, the display means has display range information of data to be displayed by itself, and the display means displays data in accordance with its own data display range information or data display range information received from a counterpart information display device. .

In a preferred embodiment, the priority order between yourself and the other party (between yourself and the other party information display apparatus or between one's own user and the other party information display apparatus user) is set.
The setting means sets a display method based on the priority.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Cooperative work requiring collaboration includes editing a map by writing information on the same map, jointly editing a design drawing of a building or a model, and the like. Or jointly write dissertations and reports
There are various kinds of work such as correction. In the following, as a cooperative operation, when units such as fire, police, the military, and corporations are deployed in a certain area and conduct unit operations, each member working on the scene must use the same electronic map. Embodiments of the present invention will be described in detail with reference to the drawings, taking as an example a map editing operation performed by writing site information in the own activity range.

FIG. 1 shows the overall configuration of a system according to an embodiment of the present invention.

A plurality of information processing terminals 3a, 3b, 3c, 3
d, ... are installed. Each information processing terminal 3a, 3b,
3c, 3d,... Are typically general-purpose computers such as desktop personal computers and mobile personal computers. Each of the information processing terminals 3a, 3b, 3c, 3d,... Is provided with a system for performing a map editing work in collaboration (hereinafter, referred to as a collaboration system).

The collaboration system appropriately switches between automatically synchronizing the display range and canceling the synchronization according to the state of the collaboration. Specifically, communication is performed (for example, each information processing terminal 3a, 3b, 3c, 3d,
.. Are detected), the range to be displayed on the map is synchronized, and if it is not detected (ie, each of the information processing terminals 3a, 3b, 3c, 3d,
When the map editing work is being performed independently in...), The range to be displayed on the map is not synchronized. As shown, the collaboration system includes a communication device 2 such as a modem connected to a communication network 1, a voice input device 4 such as a microphone, a manual input device 5 such as a mouse, a pen, a keyboard, and a map editing device. Display device 7 for displaying a screen
And a display control device 9 for controlling a display mode, and a content data storage unit 11 for storing content data (map data). Also, a synchronization start detection device 13 for detecting the start of synchronization, a screen information database 15 storing screen information described later,
A synchronization device 17 for switching the synchronization release is also provided (the reference number is attached only to the collaboration system of the information processing terminal 3a, but the other information processing terminals 3b, 3b).
The same applies to the components of the collaboration system of c, 3d, ...). In this collaboration system, the user uses the voice input device 4 and a speaker (not shown) to communicate with the communication device 2 and the communication network 1.
It is possible to have a conversation with another user via.

The user can use the manual input device 5 to set the map display range displayed on the display device 7, edit the displayed map, and receive information from each user participating in the map editing work. Specify (select) the other user whose display range is to be synchronized.

The display control device 9 acquires map data from the content data storage unit 11 and displays a map within a range set by the user, or changes the map display range according to an instruction from the synchronization device 17 in another collaboration system. Synchronize with the map display area. Also, the display control device 9
As described later, a map may be displayed in a range including its own map display range and a map display range in another collaboration system. In this case, the display control device 9 calculates the minimum rectangular range including the rectangular range of the map displayed to the user and the rectangular range of the map displayed by another collaboration system, and calculates the minimum rectangular range. Show map.

The synchronization start detecting device 13 instructs the synchronization device 17 to execute synchronization when it detects that the user has set a synchronization partner, a synchronization method, and the like and instructed to start synchronization. When detecting the synchronization start timing, the synchronization start detection device 13 automatically sets the synchronization method and the like,
It instructs the synchronization device 17 to execute synchronization. In addition, the above-mentioned synchronization method means a method of synchronizing the map display range of the user with the other party (that is, the own map range is displayed on the other party) (hereinafter referred to as a master type method). Method of synchronizing the map display area of the other party with the other party (that is, displaying the same area as the map area displayed on the other party)
Slave type method) and a method of displaying a map in a range including the map display range of the user and the map display range of the other party (hereinafter, referred to as an inclusive type method). In addition, as the synchronization start timing, a button or icon or the like for instructing synchronization is operated, the selection of the synchronization partner ends, or, as described later, an utterance is made to the voice input device 4 (voice Input to the input device 4).

The synchronizer 17 synchronizes the map display in accordance with an instruction from the synchronization start detector 13. When executed in the Master type system, the synchronizer 17 acquires the screen information from the screen information database 15, transmits the screen information to the other party, and synchronizes the map display range on the other party with its own map display range. To do. When executed by the Slave type method, the synchronizer 17 receives the screen information from the other party's collaboration system (information processing terminal), passes it to the display controller 9, and changes its own map display range to the other party's map display range. Synchronize with. When executed in the inclusive type, the synchronizer 17 receives the other party's screen information and passes it to the display control device 9 to calculate a range including its own map display range and the other party's map display range. Let it.

FIG. 2 shows an example of a screen information data table stored in the screen information database 15.

As shown in the figure, the screen information includes "system ID", "user information", "display window attribute", "center map coordinates", "display magnification", "display orientation", and "display layer attribute". "and so on. "System I
"D" is collaboration (in other words, map editing work)
Code unique to the collaboration system participating in the program (numbers, alphabets, etc., or a mixture thereof)
It is. The “user information” includes “user name” indicating the name of the user and “user rank” indicating the authority level (priority in display synchronization) of the user. The “display window attribute” is the “width” and “height” of a window for displaying a map, which is displayed on the display device 7. The “center map coordinates” are map coordinates that match the center of the map display window when, for example, a map is displayed for the first time, and specifically, “latitude / longitude”, “19 point coordinate system (orthogonal coordinate system)”. And the like. “Display magnification” is, for example, a display magnification of a map when a map is displayed for the first time.
The “display azimuth” is a rotation direction when north is set to zero. The “display layer attribute” is information on line drawing and the like for each layer for drawing a building, a road, and the like. Specifically, “line color”, “line style”, “line thickness” "
Etc. are included. Screen information can be set and
It is changed or automatically set and changed in accordance with the user's input operation in map editing work. The screen information may be set and changed in this way, or may be prepared in a fixed manner.

Based on such screen information, in the collaboration system, synchronization is performed by a master type system, a slave type system, or an inclusion type system. In addition,
Which of the master type, the slave type, and the inclusion type is to be synchronously executed can be switched automatically or freely by the user.

In this collaboration system,
There are at least the following three methods for switching between synchronous execution and synchronous release.

(1) The user specifies the synchronization method and the synchronization execution.

That is, when the user specifies a synchronization partner, a synchronization method,
Synchronous execution is performed by designating the synchronization start timing and the like, that is, all are performed manually, and this method is easy to reflect the user's preferred usage.

(2) The synchronization method is automatically set and switched according to the priority order set for the user (that is, the "user rank" described above), and the user specifies synchronization execution.

The priorities of all users participating in the collaboration are checked, and a synchronization method is set based on the result, and a part of the method is automatically performed.

(3) When the synchronization start timing (for example, the utterance of the user) is detected, the synchronization method and the synchronization start timing are automatically set and switched to execute the synchronization.

This is a method for automatically performing all the operations. Since no complicated operation is required, it is effective when using this collaboration system for the first time, or when wanting to quickly collaborate or switch the synchronization method without any trouble.

The operation when synchronous execution is performed in each of the above methods will be described below.

First, the operation of the method (1), that is, the operation when the synchronous execution is performed by the method in which the user specifies the synchronous method and the synchronous execution, will be described with reference to FIGS. In the following description, the collaboration system is referred to as a “map system”, its own collaboration system is referred to as a “map system A”, and the collaboration system of a synchronization partner is referred to as a “map system B”.

When the master type system is designated in the map system A, the operation shown in FIG. 3 is performed. In this method, the map system A is Master and the map system B is
As a Slave, the screen of the map system B synchronizes (follows) with the screen of the map system A.

FIG. 3 shows an operation procedure of synchronous execution in the master type system.

When the synchronization partner (map system B) is designated and the synchronization start timing (operation of the synchronization execution button or icon or the like) is detected (step S1), the map system A sends the map system B a request. Then, a request for preparation for reception of screen information from the map system A and a request for screen synchronization (reception preparation for screen information Req) are transmitted (S2). The map system B receives the screen information reception preparation Req and performs reception preparation (S3). When the reception preparation is completed, the map system B transmits a preparation completion message (screen information reception preparation Ack) to the map system A (S4, synchronization). When rejecting, a rejection message is sent, and the operation of the synchronous execution ends at that step).
The map system A acquires its own screen information (S5),
It is transmitted to the map system B (S6). The map system B receives the screen information (S7), changes the currently displayed screen based on the screen information, and performs re-drawing (S8). When the screen information reception and the redrawing are normally completed, the map system B transmits a completion message (screen information reception Ack) to the map system A (S9, screen information is incorrect or synchronized screen display cannot be performed). In such a case, an error message is transmitted).

Between the map system A and the map system B, each time the map display range, magnification, etc. are changed in the map system A, the screen information thereof is changed and set, and the operations in steps S5 to S9 are performed. Done. This synchronization can be canceled arbitrarily by the users of the map systems A and B, or can be canceled automatically when a preset synchronization cancellation timing is detected (this will be described below). The same applies to synchronous execution.

Next, the operation of the above method (1) when the Slave type system is designated by the map system A will be described.

When the Slave type system is designated in the map system A, the operation shown in FIG. 4 is performed. In this method, map system A is Slave and map system B is M
As an aster, the screen of the map system A synchronizes (follows) with the screen of the map system B.

FIG. 4 shows an operation procedure of synchronous execution in the Slave type system.

When the synchronization partner (map system B) is designated and the synchronization start timing is detected (step S10), the map system A prepares the map system B for transmission of screen information of the map system B, and performs screen synchronization. A permission request (screen information transmission preparation Req) is transmitted (S11). The map system B receives the screen information transmission preparation Req and prepares for transmission (S12). When the transmission preparation is completed, the map system B transmits a preparation completion message (screen information transmission preparation Ack) to the map system A (S13, synchronization). When rejecting, a rejection message is sent, and the operation of the synchronous execution ends at that step). The map system A requests the map system B to transmit screen information (transmits a screen information transmission Req) (S
14). The map system B acquires its own screen information (S15) and transmits it to the map system A (S1).
6). The map system A receives the screen information of the map system B (S17), changes the currently displayed screen based on the screen information, and performs redrawing (S18). Then, when the screen information reception and the redrawing are normally completed, the map system A completes the message (screen information reception Ack).
Is transmitted to the map system B (S19, an error message is transmitted if the screen information is incorrect or a synchronized screen cannot be displayed).

Between the map system A and the map system B, each time the map display range or the like is changed in the map system B, the screen information thereof is changed and set, and the operations in steps S15 to S19 are performed. .

Next, the operation of the above method (1) when the inclusive type is designated by the map system A will be described.

When the inclusive method is designated in the map system A, the operation shown in FIG. 5 is performed. In this method, both the map systems A and B use the map system A
Is displayed, the range including both the map display range and the map display range of the map system B is displayed.

FIG. 5 shows an operation procedure of synchronous execution in the inclusion type system.

When the synchronization partner (map system B) is designated and the synchronization start timing is detected (step S20), the map system A prepares the map system B for transmission of the screen information of the map system B to the map system B. A request for synchronization permission (screen information transmission preparation Req) is transmitted (S21). The map system B receives the screen information transmission preparation Req and prepares for transmission (S22). When the preparation for transmission is completed, the map system B transmits a preparation completion message (screen information transmission preparation Ack) to the map system A (S23, synchronization). When rejecting, a rejection message is sent, and the operation of the synchronous execution ends at that step). The map system A prepares the screen information transmission preparation Ack
Upon receiving the request, the map system B requests the map system B to transmit the screen information (transmits the screen information transmission Req) (S2).
4). Upon receiving the screen information transmission Req, the map system B acquires its own screen information (S25) and transmits it to the map system A (S26). The map system A receives the screen information of the map system B (S27), and when the screen information reception ends normally, transmits a completion message (screen information reception Ack) to the map system B (S28, the screen information is incorrect). Send an error message if you have.) Further, the map system A identifies a rectangular range of the map display in the map system B from the screen information of the map system B, and a minimum rectangle including the rectangular range and the rectangular range of the map display in the map system A. The range is calculated (S29). Then, the map system A changes the current display screen on the basis of the calculated map display range and redraws the image (S10).
30), and notifies the map system B of the information on the calculated map display range (S31). The map system B receives the map display range information from the map system A (S32),
Based on the map display range information, the current display screen is changed and redrawing is performed (S33). When the screen information reception and the redrawing are completed normally, the map system B sends a completion message (screen information reception Ack) to the map system A.
(S34, an error message is transmitted if the screen information is incorrect or a synchronized screen cannot be displayed).

Between the map system A and the map system B, each time the range of the map display is changed in both the map systems A and B, the screen information thereof is changed and set,
The calculation of the display range in step S29 is performed, and the screens of the map systems A and B change according to the calculated display range.

In this inclusive type system, not only the two map systems A and B, but also the range including the map display range of all users (map system) participating in the collaboration can be displayed. .

FIG. 6 shows a screen including the display range of all users (map system) participating in the map editing work.

As shown in the figure, it is assumed that four map systems A, B, C, and D are participating in the collaboration (map editing work). In this case, for example, if it is initially specified that the map display range of all the participating users is to be displayed on the map system A, the map system A and the other map systems B, C, and D are shown in FIG. The operation is performed. That is, the map system A responds to the screen information transmission Req transmitted to the other map systems B, C, and D by:
From the map system B, the display rectangle range 2 of the map system B
5 from the map system C, screen information including information on the display rectangular range 27 of the map system C, and map information from the map system D including screen information including the information on the display rectangular range 29 of the map system D. Receive. Then, the map system A generates the minimum display rectangle range 2 including the display rectangle ranges 25, 27, and 29 received from the other map systems B, C, and D and the display rectangle range 23 in the map system A.
1 is calculated. Further, the map system A includes frames 31, 33, 3 indicating display rectangle ranges 23, 25, 27, 29 of the respective map systems A, B, C, D in the display rectangle range 21.
5 and 37 are set. The map system A changes the current display screen based on the calculated display rectangle range, and displays the display rectangle ranges 23, 2 of each of the map systems A, B, C, and D.
A map image of a rectangular range 21 including 5, 27, and 29 is drawn. In addition, the map system A calculates the calculated display rectangle range 2
The first information is notified to the other map systems B, C, and D.
In other map systems B, C, and D, the current display screen is changed based on the information on the display rectangular range 21 from the map system A, and the screen of the rectangular range 21 displayed on the map system A is displayed. You. Although not shown, in the vicinity of the frames 31, 33, 35, and 37, the frame indicates which user (or the map system) is displayed at all times or when the mouse cursor is over the line of the frame. An indication of the range is displayed, for example, a user name is displayed.

According to this, since the map screens of all the users participating in the collaboration (map editing work) are displayed, not only the work status of each user but also the entire work status relating to the map editing can be displayed at once. You can figure out.

The above is the operation when the synchronous execution is performed by the method (1).

Next, the method (2), that is, the operation when the synchronization method is automatically set and switched according to the priority set by the user and the user specifies synchronization execution will be described. .

First, for example, a user in the map system A specifies the "user name" (or "system ID" of the map system) of the user participating in the collaboration (cooperative map editing work) to the map system A. The map system A checks the “user rank” (priority order) of all designated participating users, and sets the map system of the user having the highest user rank to Master and the remaining map systems to the user.
Slave is determined, and that effect is notified to all the users (map system) specified above. After that, a master type system is automatically determined as a synchronization system between the respective map systems, and synchronization is performed according to the procedure shown in FIG.

Next, the method (3), ie, when the synchronization start timing (for example, the user's utterance) is detected, automatically sets and switches the synchronization method and the synchronization start timing, and performs the operation when the synchronization is executed. explain.

First, for example, the user in the map system A specifies the “user name” (or the “system ID” of the map system) of the user participating in the collaboration to the map system A. After that, if a user's utterance is detected in any of the participating user's map systems, the detected map system determines itself as Master and the rest of the map systems as Slave, and the above-mentioned designation is designated. Notify all users (map system). After that, a master type system is automatically determined as a synchronization system between the respective map systems, and synchronization is performed according to the procedure shown in FIG. If the user's utterance is detected by another map system during the synchronization, the other map system
Decide yourself as Master, and decide the remaining map systems, including the map system that was previously Master, as Slave.
Then, the other map system notifies all the designated users (map system) of the fact. After that,
As described above, the master type system is automatically determined as the synchronization system between the respective map systems, and the synchronization is performed according to the procedure shown in FIG.

According to this method, when synchronizing the map display range of the user with the map system of another participating user, the user of each map system only needs to speak. This makes it possible to inform all participating users of their own map display range easily and quickly.

The above are the three methods of switching between synchronous execution and synchronous release in the above-mentioned collaboration system.

According to the above-described embodiment, in a cooperative map editing work requiring collaboration, a synchronization method is appropriately selected according to the work state and intention of each user such as a communication state and an independent work. ,
Unification and confirmation of intentions between users can be performed sufficiently and quickly.

Further, according to the above-described embodiment, since the display synchronization can be automatically performed, there is no need for a troublesome map operation at the time of a cooperative map editing operation. Further, the load of the display processing of each of the information processing terminals 3a, 3b, 3c, 3d,... Is reduced.

Further, according to the above-described embodiment, it is possible to visually grasp what users are participating in the collaboration and the areas assigned to the map editing work of each participating user, and to manage the entire map editing work. It will be easier. In addition, it is easy to select a synchronization partner in the synchronization method and to synchronize the other party with its own display range or to synchronize with the other party's own display range.

Although some preferred embodiments of the present invention have been described above, these are merely examples for describing the present invention, and are not intended to limit the scope of the present invention only to these examples. . The present invention can be implemented in other various forms.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the overall configuration of a system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a data table of screen information.

FIG. 3 is a diagram showing an operation procedure of synchronous execution in a master type system.

FIG. 4 is a diagram showing an operation procedure of synchronous execution in a Slave type system.

FIG. 5 is a diagram showing an operation procedure of synchronous execution in the inclusive type system.

FIG. 6 is a screen including a display range of all users (map system) participating in map editing work.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Communication network 3a, 3b, 3c, 3d ... Information processing terminal (collaboration system) 5 Manual input device 7 Display device 9 Display control device 11 Content data storage part 13 Synchronization start detection device 15 Screen information database 17 Synchronization device

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G09G 5/00 510 G09G 5/00 510V 5/36 510 5/36 510B (72) Inventor Yuji Ishikawa Tokyo 3-3-3 Toyosu, Koto-ku, within NTT DATA Corporation (72) Inventor Shuzo Nakamura 3-3-1, Toyosu, Koto-ku, Tokyo NTT Data Corporation F Terms (reference) 2C032 HB25 HB31 HC22 HC24 HD13 5B085 BE07 BG06 CE08 5C082 AA01 AA21 AA34 BA14 BB01 CB01 CB06 DA87 MM02 MM09 MM10 5E501 AA02 AA13 AC25 AC34 BA03 BA05 CA02 CB02 CB09 CB11 CB09 CB09 CB09 CB11 CB11 CB11 CB09 CB09 JJ11

Claims (10)

[Claims] 1. An information display device capable of directly or indirectly communicating with another information display device, comprising: a detection unit for detecting an event; and a plurality of predetermined displays based on a type of the detected event. An information display device comprising: setting means for selecting and setting one display method from the methods; and display means for displaying data in the set display method. 2. The method according to claim 1, wherein the predetermined plurality of display methods include a synchronization method for matching the data display range of the user and the data display range of the other party, and making the own data display area and the data display range of the other party independent. 2. The information display device according to claim 1, wherein the information display device includes an asynchronous method. 3. The synchronizing method includes a first display method for causing a display range of data displayed by the user to be the same display range on a partner information display device, and a display range of data displayed by the user. 3. The information display device according to claim 2, wherein there is a second display method for making the display range of the data displayed on the other party's information display device the same. 4. The predetermined plurality of display methods include displaying a range including a display range of data to be displayed by another display method and a display range of data to be displayed on a counterpart information display device. 2. An inclusive display method that includes
Or the information display device according to 2. 5. The information display device according to claim 1, wherein the data is map data. 6. The event is an end of designation of a communication partner by the user, setting of a display method by the user, or voice input by the user. 2. The information display device according to claim 1, wherein the display method to be set is switched in response to a display method setting or a user's voice input. 7. A display device having display range information of data to be displayed by the user, wherein the display means displays data according to the own data display range information or the data display range information received from the other party's information display device. Item 2. The information display device according to Item 1. 8. The information display device according to claim 1, wherein priorities between the user and the other party are set, and the setting means sets the display method based on the priorities. 9. In an environment in which a plurality of information display devices can directly or indirectly communicate with each other, a detection step of detecting an event, and a predetermined plurality of display methods based on a type of the detected event. An information display method comprising: a setting step of selecting and setting one display method; and a display step of displaying data in the set display method. 10. In an environment in which a plurality of information display devices can directly or indirectly communicate with each other, a detection step of detecting an event, and a predetermined plurality of display methods based on a type of the detected event. A computer-readable recording medium for causing a computer to execute a program recording a setting step of selecting and setting one display method and a display step of displaying data by the set display method.