JP2010072691A - Information display system, information display method, and computer program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new service using a current location acquisition function in a portable terminal device. <P>SOLUTION: A map display system 10 includes a plurality of potable terminals 200 each of which has a display panel 202, and which are respectively carried by a plurality of users; and a server system 1,000. The server system 1,000 acquires a plurality of current location information showing the current locations of the plurality of portable terminals 200, and groups the plurality of portable terminals 200 by the same train units based on the plurality of current location information. The server system 1,000 generates such group characteristics information as the level of the congestion of trains and the number of vehicles corresponding to the group, and transmits it to the portable terminals 200 as information object terminals. The display panel 202 of each of the portable terminals 200 displays the group characteristic information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information display technique.

  It is possible to display information on facilities and roads on the ground surface on the display of electronic devices, including technology that provides route guidance to cars and pedestrians using computerized map data that can be used on computers. Widely done. For example, in a vehicle navigation apparatus that displays map information and landmark position information, a technique for determining the display order of detailed landmark information and sequentially displaying the detailed landmark information according to the determined order is known. (For example, Patent Document 1). In mobile terminal devices, a technique for recognizing the current position using GPS (Global Positioning System) is generally used.

Japanese Patent Laid-Open No. 11-132777 JP 2003-254761 A JP-A-6-29597 JP 2000-131087 A Japanese Patent No. 3850898 Japanese Patent No. 3478674

  In mobile terminal devices such as mobile terminals capable of displaying such a map, provision of a new service using a current position acquisition function such as GPS has been required.

  An object of the present invention is to provide a new service using a current position acquisition function in a mobile terminal device.

  The present invention can be realized as the following forms or application examples in order to solve at least a part of the above-described problems.

[Application Example 1] The information display system of Application Example 1 has a display unit, and represents a plurality of portable terminal devices carried by a plurality of users, respectively, and current positions of the plurality of portable terminal devices. Current position acquisition means for acquiring a plurality of current position information, grouping means for grouping the plurality of portable terminal devices based on the plurality of current position information and a predetermined condition, and a group representing characteristics of the group Group characteristic information generating means for generating characteristic information; and group characteristic information display means for displaying the group characteristic information on the display unit. If it carries out like this, a some portable terminal device will be grouped and the characteristic information of a group will be produced | generated. And the characteristic information of a group is displayed on the display part of a portable terminal device. As a result, the user can obtain information as group characteristic information processed in units of groups, not the current position information of the portable terminal device as it is, which is convenient.

[Application Example 2] In the information display system according to Application Example 1, in the grouping unit, the plurality of mobile phones in which a difference in current position, a difference in movement direction, and a difference in movement speed are within a predetermined allowable range. The terminal devices are grouped as the same transportation use group that is a group of the portable terminal devices held by the users who use the same transportation. If it carries out like this, the several portable terminal device which adjoins mutually and is moving at the same speed in the same direction is grouped as one group. Therefore, the mobile terminal devices existing in one transportation facility can be grouped into one group with high accuracy.

[Application Example 3] The information display system according to Application Example 1 further includes transportation information acquisition means for acquiring transportation information including a route of public transportation, and the grouping means includes the transportation means of the public transportation. The same public group which is a group of the mobile terminal devices held by users using the same public transport, with the plurality of mobile terminal devices moving at substantially the same speed in the same direction along the route Group as a transportation use group. In this way, since a plurality of portable terminal devices moving at the same speed in the same direction along the route of public transportation are grouped as one group, the mobile phones existing in one transportation can be accurately obtained. Terminal devices can be grouped into one group.

[Application Example 4] The information display system according to Application Example 2 further includes a transportation system corresponding to the same transportation use group based on the current position information of the portable terminal device belonging to the same transportation use group. A transportation characteristic estimation means for estimating the characteristic is provided. In this way, it is possible to estimate the characteristics of the transportation facilities corresponding to the same transportation use group based on the current position information.

  Application Example 5 The information display system according to claim 3 further corresponds to the same public transport use group based on the current position information of the mobile terminal device belonging to the same public transport use group. Transportation means estimating means for estimating the characteristics of the transportation is provided. In this way, it is possible to estimate the characteristics of the transportation system corresponding to the same public transportation use group based on the current position information.

Application Example 6 In the information display system according to Application Example 4 or Application Example 5, the estimated characteristics of the transportation facility include at least one of the moving speed of the transportation facility, the number of vehicles, and the degree of congestion. In this way, it is possible to accurately estimate the moving speed of the transportation system, the number of vehicles, and the degree of congestion from a plurality of current position information.

Application Example 7 In the information display system according to Application Example 5, the estimated transportation characteristics include the degree of congestion of the transportation means, and the group characteristic information indicates the degree of congestion of the transportation system. A corresponding level display is displayed on the display unit. This is convenient because the user can understand the degree of traffic congestion at first glance.

  Application Example 8 The information display system according to Application Example 1 further includes feature region information acquisition means for acquiring feature region information for specifying a feature region occupied by the feature on the ground surface, The grouping means groups the plurality of portable terminal devices included in the feature region as a group in the same feature that is a group of the portable terminal devices held by a user existing in the same feature. Turn into. In this way, the plurality of mobile terminal devices included in the feature region are classified into one group, and the group characteristic information is provided to the user, so that the user can easily grasp the characteristic of the feature. It is possible and convenient.

Application Example 9 The information display system according to Application Example 8 further corresponds to the same feature presence group based on the current position information of the mobile terminal device belonging to the same feature presence group. A feature characteristic estimating means for estimating the characteristic of the feature is provided. In this way, it is possible to estimate the characteristics of the feature corresponding to the group existing in the same feature based on the current position information of the mobile terminal device.

Application Example 10 In the information display system according to Application Example 8 or Application Example 9, the estimated feature characteristic includes the degree of congestion of the feature. In this way, it is possible to accurately estimate the degree of feature congestion based on the current position information of the mobile terminal device.

  The present invention can be realized in various forms. For example, an information display server, an information display method, a computer program for realizing the method, and the computer program each having a display unit and capable of communicating with a plurality of portable terminal devices carried by a plurality of users Can be realized in the form of a recording medium or the like on which is recorded.

  Hereinafter, embodiments of the present invention will be described based on examples with reference to the drawings.

A. Example:
・ Configuration of map display system:
FIG. 1 is an explanatory diagram showing a schematic configuration of a map display system 10 as an embodiment. As illustrated, the map display system 10 of the embodiment includes an information providing server 100, a map server 150, a base station BS, and a mobile terminal 200 as a mobile terminal device. The information providing server 100, the map server 150, and the base station BS are communicably connected via the Internet INT. The portable terminal 200 can wirelessly communicate with the base station BS. As a result, the portable terminal 200 can communicate with the information providing server 100 and the map server 150 via the base station BS.

  The mobile terminal 200 of the present embodiment can function as a map display terminal. The mobile terminal 200 includes a GPS receiver 201 and has a function of performing route guidance using the GPS receiver 201 and a map display function. In addition to the GPS receiver 201, the mobile terminal 200 includes a display panel 202 as a display unit, an audio output unit 204, a key input unit 205, a wireless communication circuit 206, a call control unit 207, and an external storage device 208. And a main control unit 210.

  The GPS receiver 201 is a device that receives radio waves transmitted from artificial satellites that constitute a GPS (Global Positioning System). The display panel 202 includes a liquid crystal display and a drive circuit that drives the liquid crystal display. The display panel 202 is not limited to a liquid crystal display, and various display devices such as an organic EL display can be employed.

  The voice output unit 204 includes a speaker for outputting voice during route guidance, a circuit for driving the speaker, and the like. The key input unit 205 includes a group of keys such as a direction input key 205a and other operation keys 205b. The user of the portable terminal 200 can perform various operations by using these keys.

  The wireless communication circuit 206 is a circuit for performing data communication or voice communication with the base station BS. The wireless communication circuit 206 can access the information providing server 100 and the map server 150 via the base station BS. The call control unit 207 is a circuit that performs control such as incoming calls and calls for voice calls, and conversion of voice signals into electrical signals. By providing the call control unit 207 and the wireless communication circuit 206, the mobile terminal 200 can operate as a mobile phone. The external storage device 208 can be configured with a hard disk, a flash memory, a memory card, and the like. The external storage device 208 is used for storing various software and data.

  The main control unit 210 of the mobile terminal 200 is a controller for controlling the above-described units 201 to 208 of the mobile terminal 200. The main control unit 210 includes a central processing circuit (CPU) (not shown) and an internal storage device such as a ROM or a RAM.

  When the portable terminal 200 functions as a map display terminal, the internal storage device of the main control unit 210 stores a program for displaying a map. For example, this program may be distributed via the Internet INT and the base station BS by a business operator who operates the map server 150 and the information providing server 100. This program is stored in the external storage device 208 when not used, read out from the external storage device 208 and stored in the internal storage device of the main control unit 210 when used. The main control unit 210 implements various processes / functions to be described later by executing this program.

  The information providing server 100 includes a communication unit 102, a control unit 104, and a storage unit 105. The control unit 104 is a controller for controlling the communication unit 102 and the storage unit 105. The communication unit 102 can communicate with the map server 150 via the Internet INT and with the mobile terminal 200 via the Internet INT and the base station BS. The storage unit 105 includes, as a database (DB) of routes through which a user passes, a car route database 106 representing a car route (road), a train route database 107 representing a train route (track), and a pedestrian route. The walking route database 108 representing Further, the storage unit 105 stores a facility database 109 and a timetable database 110 representing a train timetable. Each database 106-110 is mentioned later.

  The map server 150 includes a communication unit 152, a control unit 154, and a storage unit 155. The storage unit 155 stores a map database 156 described later. The control unit 154 is a controller for controlling the communication unit 152 and the storage unit 155 described above of the map server 150. The communication unit 152 can communicate with the information providing server 100 via the Internet INT and the mobile terminal 200 via the Internet INT and the base station BS.

  The control unit 104 of the information providing server 100 and the control unit 154 of the map server 150 each include a CPU (not shown) and an internal storage device such as a ROM or a RAM. The internal storage devices of the control unit 104 and the control unit 154 store a program for supporting the function of the mobile terminal 200 as a map display terminal by communicating with the mobile terminal 200. The control unit 104 and the storage unit 105 execute various programs / functions described later by executing these programs.

  The map display system 10 including the server system 1000 including the information providing server 100 and the map server 150 and the mobile terminal 200 in this embodiment functions as an information display system. In the present embodiment, the map server 150 and the information providing server 100 are connected via the Internet INT, but may be connected via a LAN (local area network). Further, the information providing server 100 and the map server 150 can be configured by one server computer.

  FIG. 2 is a diagram for explaining the contents of the database stored in the server system 1000. FIG. 2 conceptually shows the contents of the map database 156, the car route database 106, the train route database 107, the walking route database 108, and the facility database 109 described above.

  The map database 156 stores data (map image data) representing a map image transmitted to the mobile terminal 200 in a vector data format. The map image data may be stored in a raster data format such as a bitmap format or a JPEG data format instead of the vector data format. The map image data includes data representing the shape of topography, buildings, roads, and the like.

  Different types of route data are stored in the three types of route databases 106, 107, and 108. The vehicle route database 106 stores route data related to a route (a roadway) through which a vehicle can pass among traffic routes existing in an area corresponding to the map image represented by the map image data. The train route database 107 stores route data related to a route (railway) through which a train passes among traffic routes existing in an area corresponding to the map image represented by the map image data. The walking route database 108 stores route data related to routes (pedestrian roads) through which pedestrians can pass among traffic routes that exist in an area corresponding to the map image represented by the map image data.

  Each route data includes network data indicating the arrangement of traffic routes on the ground surface and route attribute information associated with the network data. The network data includes node data representing element points ND (referred to as nodes) in the traffic route and link data representing line segments LK (referred to as links) connecting the nodes. The node ND represents, for example, an intersection, a branch point, an end point, a start point, a boarding / exiting position such as a station. The link LK represents a traffic route such as the above-described roadway, track, and pedestrian road.

  The route attribute information is associated with the node ND or the link LK and is information indicating the attribute. As shown in FIG. 2, the route attribute information includes text data Z11 including, for example, the name of a link LK (for example, the name of a road) and the name of a node ND (for example, the name of an intersection or a station). Further, as shown in FIG. 2, the route attribute information includes other attribute data Z12, for example, image data representing an image related to the associated node ND, specifically, for example, a node ND (for example, an intersection, a station). A schematic diagram showing a branching state of the image, an image showing a guide board, or a photographed image around the node ND. The route attribute information associated with one node ND or link LK may be one or plural.

  The route data about the route that both the car and the pedestrian can pass are recorded in the vehicle route database 106 and the walking route database 108 in duplicate. The route data regarding the route through which a pedestrian cannot pass such as an expressway and the vehicle can pass is not recorded in the walking route database 108 but is recorded in the vehicle route database 106. Similarly, route data regarding routes that a pedestrian can pass, such as a narrow road, a pedestrian bridge, and an underground street, are not recorded in the vehicle route database 106, but are recorded in the walking route database 108. Has been.

  The facility database 109 includes a facility point BP representing the position of a facility (also referred to as a feature) existing in an area corresponding to the map image represented by the map image data, facility attribute information associated with the facility point BP, and a closed polygon. Includes CP. The facility attribute information includes, for example, the name Z21 of the facility that exists at the position represented by the facility point BP. The facility attribute information also includes a description Z22 such as classification information, type, and characteristics (eg, restaurant, station, parking lot) of the corresponding facility. The facility attribute information associated with one facility point BP may be one or plural. The closed polygon CP is a closed polygon that represents the area occupied by the facility in a planar shape, and is an annular polygon composed of nodes and links. Based on the closed polygon CP, the area occupied by the facility can be calculated.

・ Operation of the map display system:
・ Information display processing:
FIG. 3 is a flowchart showing the processing steps of the information display processing. When the information display application is activated on the portable terminal 200, the portable terminal 200 and the server system 1000 cooperate to execute information display processing.

  The main control unit 210 of the mobile terminal 200 uses the GPS receiver 201 to acquire current position information indicating the current position. Then, main controller 210 periodically transmits the current position information to server system 1000 (step S110). Since the number of users of the mobile terminal 200 is not one, but the number of users is large, the server system 1000 periodically acquires the current position information of a large number of mobile terminals 200. The control unit 104 of the information providing server 100 generates and manages train user information based on a large number of current position information transmitted periodically (step S210).

  FIG. 4 is a flowchart showing the processing steps of train user information generation processing for generating train user information. The control unit 104 of the server system 1000 searches for an existing mobile terminal 200 along the train route (step S211). Specifically, the control unit 104 refers to the train route database 107, identifies a train route that is a target of train user information generation processing, and is within a predetermined distance range from the route (for example, within 2 m from the route) ) Is searched based on the acquired current position information.

  The control unit 104 generates a movement vector for each searched mobile terminal 200 (step S212). The movement vector represents the moving direction and moving speed of the mobile terminal 200. Specifically, the control unit 104 generates a movement vector based on a plurality of current position information transmitted from the same mobile terminal 200 in time series.

  The control unit 104 groups a plurality of portable terminals 200 based on a plurality of current position information and a predetermined condition (a preset condition). Specifically, mobile terminals 200 that are close to each other and whose movement vectors are within a predetermined allowable range are grouped as mobile terminals 200 that exist in the same train (step S213). FIG. 5 is a diagram for describing grouping of the mobile terminals 200. The predetermined allowable range of the movement vector is set to an error range that can be regarded as moving at the same speed in the same direction along the route of the target train.

  The control unit 104 identifies a train corresponding to a group of portable terminals 200 (hereinafter referred to as the same train group) present in the same train with reference to the timetable database 110 (step S214). In the timetable database 110, for example, the departure time at each train station is recorded for each train route, so the timetable database 110 and the current time and the position on the route of the same train group are referred to. For example, trains corresponding to the same train group can be identified.

  The control part 104 produces | generates the train characteristic information showing the characteristic of the identified train (step S215). The train characteristic information includes the speed of the train, the number of train cars, and the level of congestion of the train (the density of people in the train). The speed of the train is represented by, for example, an average value of the speeds represented by the movement vectors of the mobile terminals 200 belonging to the corresponding same train group. The number of train vehicles is estimated from the distribution in the direction along the route of the position of the mobile terminal 200 belonging to the corresponding same train group. For example, as shown in FIG. 5, when the points TP representing the position of the mobile terminal 200 are distributed over the length of three trains along the link LK representing the route, The number of vehicles is estimated to be three. The level of congestion of the train is estimated using, for example, the number of mobile terminals 200 belonging to the corresponding same train group distributed per length of one train along the route. For example, if the number of mobile terminals 200 per train is equal to or less than a first predetermined value, the congestion level is 1 (not congested), and if it exceeds the first predetermined value and is equal to or less than the second predetermined value. If congestion level 2 (congested) exceeds a second predetermined value, it is determined that congestion level 3 (very crowded) (first predetermined value <second predetermined value). .

  The control unit 104 repeats the train user information generation process described above for each train route to be managed at regular intervals, and manages the train operation status for the train route to be managed.

  Returning to FIG. 3, the description will be continued. The control unit 104 determines whether or not an accident has occurred in the train operation status (step S220). For example, (a) when the mobile terminal 200 belonging to the same train group stops at a position other than the station, or (b) the position of the mobile terminal 200 belonging to the same train group is recorded in the timetable database 110. When the operation is delayed for a predetermined time or more than the scheduled operation, (c) when the position of the mobile terminal 200 belonging to the same train group has been stopped for a certain time or more, the control unit 104 determines that an accident has occurred. Judgment can be made. Of course, it can be determined that an accident has occurred even when a plurality of events among (a), (b), and (c) occur simultaneously. If the control part 104 judges that the accident has not generate | occur | produced (step S220: NO), it will return to step S210 and will continue production | generation and management of train user information.

  On the other hand, when the control unit 104 determines that an accident has occurred (step S220: YES), the control unit 104 specifies the accident information target terminal (step S230). The accident information target terminal is a terminal that is a target of accident information to be described later, among many mobile terminals 200 that are currently transmitting position information to the server system 1000.

  FIG. 6 is a diagram for explaining determination of the accident information target terminal. For example, the control unit 104 recognizes, as an accident information target terminal, the mobile terminal 200 existing in the train in the accident spillover range where the influence of the generated accident is estimated to spill over. The accident spillover range can be, for example, within a train passing through a position where the accident has occurred with a predetermined probability or more. For example, as shown in FIG. 6, it is assumed that a train T1 stops at an accident in a place where an annular route C1 and two substantially straight routes L1 and L2 that intersect the route C1 and intersect each other exist. It is assumed that no accident has occurred in the other trains T2 to T7.

  In FIG. 6, the arrows shown inside the trains T1 to T7 represent the traveling direction of the train. In such a case, for example, the probability that the train T3 passes through the accident occurrence point (the location where the train T1 exists) is 1 (100%) because there is no branch from the current position of the train T3 to the accident occurrence point. Is done. On the other hand, since the train T2 may branch in three directions (station S13, station S4, and station S2) at the station S1, the probability that the train T3 passes through the accident occurrence point is 1/3 ( About 33 percent). Similarly, the probability that the trains T4, T6, and T7 pass through the accident occurrence point is 1/3. On the other hand, the probability of the train T5 passing through the accident occurrence point is 1/3 × 1/3 = 1/9 (about 11%) because the station S4 and the station S10 may branch in three directions. . Here, if the probability as a threshold is 20%, the mobile terminal 200 existing in the trains T2 to T4, T6, and T7 is determined to be an accident information target terminal, and the mobile terminal 200 existing in the train T5. The terminal 200 is determined not to be an accident information target terminal.

  The control unit 104 generates accident information, and transmits the generated accident information to the accident information target terminal (step S240). Accident information includes, for example, data of a train where an accident occurred and a train route image where the train where the accident information target terminal exists (for example, a map image of the area), trains and stations existing on the image. Data representing the degree of congestion of the train and the station, the number of vehicles on the train, the elapsed time since the occurrence of the accident, and data representing the contents of the accident. The content of the accident is acquired by, for example, the control unit 104 accessing a site (for example, a homepage of a railroad company) opened by an operation manager (for example, a railroad company) that operates the train in which the accident occurred.

  Instead, it may be obtained by accessing a site such as a blog established by the user of the mobile terminal 200. The degree of congestion at a station is determined based on, for example, the number (density) of mobile terminals 200 per area at the station. The range of the station can be recognized by the closed polygon CP stored in the facility database 109, and the control unit 104 can calculate the area of the station by the closed polygon CP. Further, the control unit 104 can calculate the mobile terminal 200 per area in the station by counting the number of mobile terminals 200 present in the closed polygon CP of the station and dividing the number by the area of the station. The degree of congestion at a station is represented by a plurality of levels (for example, three levels) using a predetermined threshold value, similarly to the degree of congestion at a train.

  The mobile terminal 200 that has become the accident information target terminal receives the accident information (step S120). When the accident information is received, the mobile terminal 200 presents the received accident information to the user (step S130). Specifically, the mobile terminal 200 displays accident information on the display panel 202.

  FIG. 7 is a first diagram showing the accident information displayed on the display panel 202. As an initial screen for displaying the accident image, first, an image of a train route where the train where the accident information target terminal exists, the train where the accident occurred, and the train where the accident information target terminal exists is displayed. In the example shown in FIG. 7, in the displayed image, an image of the train T6 where the mobile terminal 200 as the accident information target terminal is present is displayed. In addition, an image of the train T1 where the accident occurred is displayed together with a simple content of the accident. Here, the simple contents of the accident include a user interface that accepts whether or not to display the details of the accident from the user. When the display of the details of the accident is instructed by the user, further detailed accident information is displayed.

  FIG. 8 is a second diagram showing the accident information displayed on the display panel 202. As detailed accident information, as shown in FIG. 8, the type of accident (for example, personal injury), the elapsed time since the occurrence of the accident, the vicinity of the position where the accident occurred, and the mobile terminal 200 as the accident information target terminal exist. The degree of congestion of trains and stations near is shown. For example, the degree of congestion is displayed by displaying corresponding train and station images in different colors depending on the level. For example, the example shown in FIG. 8 shows that images of trains and stations are displayed in darker colors as the degree of congestion increases. Furthermore, as shown in FIG. 8, the number of vehicles of each train is displayed in the corner of the image of each train. In addition to the contents shown in FIG. 8, when the user of the mobile terminal 200 uses transportation, information relating to transportation used by the user himself, for example, the user himself / herself uses it. You may display the delay time with respect to the scheduled operation time of a transportation.

  In this embodiment, the GPS receivers 201 of a large number of mobile terminals 200 and the control unit 104 of the server system 1000 that receives current position information from the mobile terminals 200 function as current position acquisition means. In the present embodiment, the control unit 104 of the server system 1000 functions as a grouping unit, a group characteristic information generating unit, and a transportation facility characteristic estimating unit. In the present embodiment, the main control unit 210 of the mobile terminal 200 functions as a group characteristic information display unit. In this embodiment, the train route database 107 and the control unit 104 that refers to the train route database 107 function as a transportation information acquisition unit.

  As described above, according to the present embodiment described above, the current position information of a large number of mobile terminals 200 is grouped in units of trains, and characteristics corresponding to the groups are presented to the user. As a result, the user can obtain useful information more conveniently. For example, as the characteristics of a group corresponding to a certain train, the image of the train is displayed in a color indicating the degree of congestion of the train, so the user avoids a congested train when changing trains, for example, It is easy to make decisions such as selecting a train that is not crowded. In addition, since a plurality of portable terminals 200 moving at substantially the same speed in the same direction along the route are grouped as portable terminals 200 held by users on the same train, the accuracy is high. Grouping is possible. In addition, train characteristics such as train speed and the number of vehicles can be accurately estimated based on the current position information of the mobile terminals 200 belonging to the same train group. In addition, since accident information is spontaneously transmitted to the accident information target terminal when an accident occurs, it is possible to automatically notify the accident information to a user who needs the accident information.

B. Variation:
-In the said Example, although the portable terminal 200 which exists in the same train is grouped as one group, the object of grouping is not restricted to a train unit. For example, the control unit 104 may group the mobile terminals 200 included in an area occupied by a facility (feature) such as a restaurant as one group. Information for specifying the area occupied by the facility may be stored in the facility database 109 as a closed polygon CP, for example. For example, the control unit 104 may estimate facility characteristics such as restaurant congestion based on the number and speed of the mobile terminals 200 present in the facility. For example, when there is a mobile terminal 200 that has been stopped for a predetermined time or longer in a predetermined facility, the owner of the mobile terminal 200 is estimated to be a user of the facility. In addition, for example, when a plurality of mobile terminals 200 stopped from the inside of a predetermined store exist in a line, it is estimated that the store has a queue. In this way, the mobile terminal 200 can present the characteristics of the facility in a manner that allows the user to discriminate such as displaying the color of the restaurant image in a different color depending on the degree of congestion. Then, for example, the user can use such group information as a reference when determining a restaurant to enter, which is convenient. The control unit 104 of the server system 1000 in the first modification example functions as a feature characteristic estimation unit, and the control unit 104 and the facility database 109 in the first modification example function as a feature region information acquisition unit.

  In the above embodiment, the accident information target terminal is the mobile terminal 200 existing in the train. Instead of or in addition to this, the mobile terminal existing in a station within a predetermined distance from the accident occurrence position. The terminal 200 may be the accident information target terminal, or all the mobile terminals 200 existing within a predetermined distance from the accident occurrence position may be the accident information target terminals. Thus, the accident spillover range can be set arbitrarily.

  In the above embodiment, when an accident occurs, group characteristic information (in the embodiment, the degree of congestion of the train, the number of vehicles) is transmitted as accident information to the accident information target terminal. Instead, when the user operates and requests the mobile terminal 200, the group characteristic information (in the embodiment, the degree of congestion of the train, the number of vehicles) is transmitted to the mobile terminal 200. As good.

  -In the said Example, accident information transmitted to the portable terminal 200 contains the station information of a surrounding station, for example, the presence or absence of a restroom, the rest area (a coffee shop etc.) around a station in addition to group characteristic information. But it ’s okay. In this way, the user can easily select a measure corresponding to the accident, for example, to get off at the next station and take a break until the accident ends.

  In the above embodiment, part of the configuration realized by hardware may be replaced with software, and conversely, part of the configuration realized by software may be replaced by hardware. .

  The various databases 106 to 110 stored in the storage unit 105 may be appropriately combined as necessary. For example, the car route database 106 and the train route database 107 may be combined into one database. Moreover, various databases 106-110 are good also as one database.

  As mentioned above, although the Example and modification of this invention were demonstrated, this invention is not limited to these Example and modification at all, and implementation in a various aspect is possible within the range which does not deviate from the summary. It is.

Explanatory drawing which shows schematic structure of the map display system as an Example. The figure explaining the contents of the database stored in the server system. The flowchart which shows the process step of an information display process. The flowchart which shows the process step of the train user information generation process which produces | generates train user information. The figure explaining grouping of a portable terminal. The figure explaining determination of accident information object terminal. The 1st figure which shows the accident information displayed on the display panel. The 2nd figure which shows the accident information displayed on the display panel.

Explanation of symbols

    DESCRIPTION OF SYMBOLS 10 ... Map display system, 100 ... Information provision server, 102 ... Communication part, 104 ... Control part, 105 ... Memory | storage part, 106 ... Car route database, 107 ... Train route database, 108 ... Walking route database, 109 ... Facility database, DESCRIPTION OF SYMBOLS 110 ... Timetable database, 150 ... Map server, 152 ... Communication part, 154 ... Control part, 155 ... Memory | storage part, 156 ... Map database, 200 ... Portable terminal, 201 ... GPS receiver, 202 ... Display panel, 204 ... Audio | voice Output unit 205 ... Key input unit 206 ... Wireless communication circuit 207 ... Call control unit 208 ... External storage device 210 ... Main control unit 1000 ... Server system

Claims (13)

A plurality of portable terminal devices each having a display unit and carried by a plurality of users;
Current position acquisition means for acquiring a plurality of current position information respectively representing current positions of the plurality of portable terminal devices;
Grouping means for grouping the plurality of mobile terminal devices based on the plurality of current position information and a predetermined condition;
Group characteristic information generating means for generating group characteristic information representing the characteristics of the group;
Group characteristic information display means for displaying the group characteristic information on the display unit;
An information display system comprising: The information display system according to claim 1,
In the grouping means, users using the same transportation facility hold the plurality of portable terminal devices in which a difference in current position, a difference in movement direction, and a difference in movement speed are within a predetermined allowable range. An information display system for grouping as a group using the same transportation facility that is a group of the mobile terminal devices. The information display system according to claim 1, further comprising:
It has transportation information acquisition means to acquire transportation information including the route of public transportation,
The grouping means holds the plurality of portable terminal devices moving at the same speed in substantially the same direction along the route of the public transport by a user using the same public transport An information display system for grouping as a group using the same public transportation, which is a group of portable terminal devices. The information display system according to claim 2 further includes:
An information display system, comprising: transportation characteristic estimation means for estimating characteristics of a transportation means corresponding to the same transportation use group based on the current position information of the mobile terminal devices belonging to the same transportation use group. The information display system according to claim 3 further includes:
An information display system comprising a transportation characteristic estimation means for estimating a transportation characteristic corresponding to the same public transportation use group based on the current position information of the mobile terminal device belonging to the same public transportation use group . The information display system according to claim 4 or 5, wherein
The estimated transportation characteristics include at least one of a transportation speed, a number of vehicles, and a degree of congestion of the transportation. The information display system according to claim 5,
The estimated transportation characteristics include the degree of congestion of the transportation,
As the group characteristic information, an information display system in which a level display corresponding to the degree of congestion of the transportation facility is displayed on the display unit. The information display system according to claim 1, further comprising:
A feature region information acquisition means for acquiring feature region information for specifying a feature region occupied by the feature on the ground surface;
The grouping means includes the plurality of portable terminal devices included in the feature region as a group within the same feature that is a group of the portable terminal devices held by a user existing in the same feature. Information display system for grouping. The information display system according to claim 8, further comprising:
An information display system comprising: feature characteristic estimation means for estimating a characteristic of a feature corresponding to the same feature existing group based on the current position information of the mobile terminal device belonging to the same feature existing group . The information display system according to claim 8 or 9, wherein
The information display system, wherein the estimated characteristic of the feature includes a degree of congestion of the feature. An information display server that can communicate with a plurality of mobile terminal devices each having a display unit and carried by a plurality of users,
Current position acquisition means for acquiring a plurality of current position information respectively representing current positions of the plurality of portable terminal devices;
Grouping means for grouping the plurality of mobile terminal devices based on the plurality of current position information and a predetermined condition;
Group characteristic information generating means for generating group characteristic information representing the characteristics of the group;
Group characteristic information display means for displaying the group characteristic information on the display unit;
An information display server comprising: An information display method for displaying information by a plurality of portable terminal devices each having a display unit and carried by a plurality of users,
A current position acquisition step in which a computer acquires a plurality of current position information respectively representing current positions of the plurality of mobile terminal devices;
A grouping step in which the computer groups the plurality of mobile terminal devices based on the plurality of current position information and a predetermined condition;
A group characteristic information generating step in which a computer generates group characteristic information representing the characteristics of the group;
A group characteristic information display step in which the computer displays the group characteristic information on the display unit;
An information display method comprising: A computer program for displaying information by a plurality of mobile terminal devices each having a display unit and carried by a plurality of users,
A current position acquisition function for acquiring a plurality of current position information respectively representing current positions of the plurality of portable terminal devices;
A grouping function for grouping the plurality of mobile terminal devices based on the plurality of current position information and a predetermined condition;
A group characteristic information generation function for generating group characteristic information representing the characteristics of the group;
A group characteristic information display function for displaying the group characteristic information on the display unit;
A computer program that causes a computer to realize

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