JP5873361B2 - Information provision system - Google Patents

Description

  The present invention relates to an information providing system.

  When driving on dangerous roads such as narrow roads that are difficult to pass or roads with poor visibility, it is possible to promote safe traffic by obtaining caution information such as the approach of oncoming vehicles and pedestrians. For example, Patent Document 1 discloses a system that provides attention information to a driver or a pedestrian of a vehicle by exchanging information between the vehicles or between the vehicle and the pedestrian.

JP 2009-217438 A

  However, in the method disclosed in Patent Document 1, since it is necessary to perform wireless communication between vehicles or between a vehicle and a pedestrian, information may not be exchanged on a mountain road or the like where visibility is poor. Further, even in an environment with a good view, information can be exchanged only within a range where mutual wireless communication is possible.

  The present invention has been made in view of such circumstances, and an object of the present invention is to make it possible to call attention to traffic even in an environment where wireless communication is not possible.

  An information providing system according to one aspect of the present invention includes an area storage unit that stores area information indicating a preset area, a position information storage unit that stores position information transmitted from a plurality of user terminals, and an area. Based on the information and the position information, a notification information transmitting unit that transmits notification information for notifying the user terminal of the first user passing through the area of the presence of the second user passing through the area And comprising.

  In the present invention, the “part” does not simply mean a physical means, but includes a case where the function of the “part” is realized by software. Also, even if the functions of one “unit” or device are realized by two or more physical means or devices, the functions of two or more “units” or devices are realized by one physical means or device. May be.

  According to the present invention, it is possible to call attention to traffic even in an environment where wireless communication with each other is not possible.

It is a figure which shows the structure of the information processing system which is one Embodiment of this invention. It is a figure which shows an example of a danger area. It is a figure which shows an example of area information according to user. It is a figure which shows an example of the prediction by a traffic prediction part. It is a figure which shows an example of prediction information. It is a figure which shows an example of position information. It is a figure which shows an example in case a notification information transmission part produces | generates notification information. It is a figure which shows an example of notification information. It is a figure which shows an example of the screen regarding the danger prediction information displayed based on prediction information. It is a figure which shows an example of the screen regarding the danger information displayed based on notification information. It is a flowchart which shows an example of the production | generation process of the prediction information in a navigation server. It is a flowchart which shows an example of the production | generation process of the notification information in a navigation server.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration of an information processing system according to an embodiment of the present invention. The information processing system includes a navigation server 10 and a user terminal 20. Although only one user terminal 20 is shown in FIG. 1, there are actually a plurality of user terminals 20 corresponding to the number of users.

  The navigation server 10 is an information providing system that provides the user terminal 20 with information related to route guidance and information for calling attention when traveling along a route, and is configured using one or a plurality of information processing devices. Is done.

  The user terminal 20 is an information processing device capable of presenting route guidance and caution information to the user based on information transmitted from the navigation server 10. For example, the user terminal 20 may be a mobile phone, a mobile terminal, a car navigation device, or the like. Composed. The user terminal 20 can communicate with the navigation server 10 by performing wireless communication with, for example, a mobile phone base station.

  As shown in FIG. 1, the navigation server 10 includes a route search unit 30, a route search information storage unit 32, a user-specific area storage unit 34, an area specification unit 36, a traffic prediction unit 38, a prediction information transmission unit 40, and a position information storage. Unit 42, movement direction detection unit 44, movement speed detection unit 46, and notification information transmission unit 48. Each unit constituting the navigation server 10 can be realized, for example, by using a storage area such as a memory or a storage device, or by executing a program stored in the storage area by a processor.

  The route search unit 30 performs a route search in response to a route search request from the user terminal 20, and transmits route guidance information necessary for route guidance, such as route information, facility information, and map information, to the user terminal 20. The route search request includes, for example, information indicating positions such as a departure point, a transit point, and a destination, and information indicating various conditions such as highway priority, time priority, and distance priority. The route search unit 30 can generate route guidance information by referring to map data stored in an external map server, if necessary, based on a route search request including such information. .

  The route search information storage unit 32 stores route search information indicating the route search result searched for in response to the route search request in association with the user ID. The route search information includes, for example, information for identifying nodes and links included in the route, expected passage time of each node, moving means, and the like.

  The user-specific area storage unit 34 stores user-specific area information, which is information related to a dangerous area, set in advance for each user in order to notify the user of notification information to be described later. Here, for example, as shown in FIG. 2, the danger area is an area that requires attention when passing, such as an area 100 around an intersection with poor visibility and an area 110 on a narrow road where it is difficult to pass. FIG. 3 is a diagram illustrating an example of area information for each user. In the example illustrated in FIG. 3, the user-specific area information includes a user ID, area information, and type information. The area information is information for identifying a dangerous area, and can be configured using information such as latitude / longitude, node ID, and link ID, for example. As shown in FIG. 3, the user-specific area information may include information related to a dangerous area common to all users. The type information is information indicating the type of danger in the area, and is information indicating, for example, passing attention or pedestrian attention.

  In addition, the information regarding the danger area for every user can be transmitted to the navigation server 10 from the user terminal 20, for example. Then, the user-specific area storage unit 34 can generate and store user-specific area information based on information transmitted from the user terminal 20. Further, the navigation server 10 may have a function of transmitting the user-specific area information stored in the user-specific area storage unit 34 to the user terminal 20.

  Returning to FIG. 1, the area specifying unit 36 specifies the dangerous area set for the user of the user terminal 20 based on the route search request transmitted from the user terminal 20 or the user ID included in the position information. In addition, when the danger area common to all the users is set, the said area is also specified as a danger area for users.

  Based on the route search information of a plurality of users stored in the route search information storage unit 32, the traffic prediction unit 38, when the user passes through the identified danger area, Predict existence. For example, the traffic prediction unit 38 can determine whether or not a dangerous area is included in the user's route based on the route search information stored in the route search information storage unit 32. When a dangerous area is included in the user's route, the traffic prediction unit 38 can predict the traffic time of the area based on the route search information. Furthermore, the traffic prediction unit 38 determines whether there is another user who passes through the area based on the route search information of other users, and if there is, the traffic time of the other user. Can be predicted. Then, when the difference between the user's traffic time and another user's traffic time is within a predetermined time, the traffic prediction unit 38 allows another user to pass through the specified dangerous area when the user travels. Then it can be determined.

  FIG. 4 is a diagram illustrating an example of prediction by the traffic prediction unit 38. As shown in FIG. 4, it is assumed that there is a danger area 120 on the route of the user A, and the time when the user A is expected to pass through the area 120 is 10:30. In this case, the traffic prediction unit 38 sets the area 120 within a predetermined time from 10:30 (for example, within 5 minutes before and after) based on the route search information of a plurality of users stored in the route search information storage unit 32. Users who are expected to pass can be identified. In the case shown in FIG. 4, user B corresponds to this.

  Based on the prediction result of the traffic prediction unit 38, the prediction information transmission unit 40 generates prediction information for notifying the user who is scheduled to pass through the dangerous area of the presence of another user who is scheduled to pass through the area. To the user terminal 20. For example, the prediction information transmission unit 40 can generate prediction information and transmit it to the user terminal 20 when the difference between the user's travel time in the danger area and another user's travel time is within a predetermined time. .

  FIG. 5 is a diagram illustrating an example of the prediction information. In the example illustrated in FIG. 5, the prediction information includes area information, position information, attribute information, direction information, prediction time, and type information. The area information is information for identifying a dangerous area where danger is predicted to occur. Further, the position information is information for identifying a position where occurrence of danger is predicted in the danger area. As the position information, for example, latitude / longitude, node ID, link ID, and the like can be used. The attribute information is information indicating an attribute of another user causing the danger, and for example, information indicating the moving means (for example, vehicle, walking, bicycle, etc.) of the other user can be included in the attribute information. . In addition, the prediction information transmission part 40 can produce | generate attribute information based on the information which shows the moving means contained in route search information, for example. The direction information is information indicating a relationship between the moving direction of the user and the moving direction of another user. Examples of the relationship in the movement direction include facing, the same direction, and crossing. Note that the prediction information transmission unit 40 may transmit the prediction information only when the relationship in the moving direction is a predetermined relationship (for example, opposite). The predicted time is a time at which occurrence of danger is predicted. The type information is information indicating the type of danger in the danger area.

  Returning to FIG. 1, the position information storage unit 42 stores position information transmitted from the user terminal 20. FIG. 6 is a diagram illustrating an example of position information. In the example illustrated in FIG. 6, the position information includes a user ID, date and time, and latitude / longitude.

  Returning to FIG. 1, the movement direction detection unit 44 can detect the movement direction of the user based on the history of position information stored in the position information storage unit 42. In addition, when the information which shows a moving direction is contained in the positional information transmitted from the user terminal 20, the moving direction detection part 44 is good also as detecting a moving direction based on the said information.

  The moving speed detection unit 46 can detect the moving speed of the user based on the history of position information stored in the position information storage unit 42. In addition, when the information which shows a moving speed is contained in the positional information transmitted from the user terminal 20, the moving speed detection part 46 is good also as detecting a moving speed based on the said information.

  The notification information transmission unit 48 notifies the user who is passing the dangerous area of the presence of another user who is passing the area based on the position information of the plurality of users stored in the position information storage unit 42. Notification information can be generated and transmitted to the user terminal 20. Further, the notification information transmission unit 48 can include the direction information indicating the movement direction detected by the movement direction detection unit 44 in the notification information and transmit it to the user terminal 20. Similarly, the notification information transmitting unit 48 can transmit speed information indicating the moving speed detected by the moving speed detecting unit 46 to the user terminal 20 by including in the notification information.

  FIG. 7 is a diagram illustrating an example when the notification information transmitting unit 48 generates notification information. In FIG. 7, it is assumed that the area 130 is specified as the danger area of the user A. The notification information transmission unit 48 can detect that the user A is passing the area 130 based on the position information stored in the position information storage unit 42. Further, the notification information transmission unit 48 can detect the presence of another user who is traveling in the area 130 based on the position information of the plurality of users stored in the position information storage unit 42. For example, as illustrated in FIG. 7, the notification information transmission unit 48 can detect that the user B is passing the position L <b> 1 in the area 130. The movement direction detection unit 44 can detect the movement direction of the user B based on the history of the position information of the user B. Further, the moving speed detection unit 46 can detect the moving speed of the user B based on the history of the position information of the user B. Based on these detection results, the notification information transmission unit 48 can generate notification information, for example, as shown in FIG. In the example illustrated in FIG. 8, the notification information includes area information, position information (position notification information), attribute information, direction information, speed information, and caution information.

  Returning to FIG. 1, the user terminal 20 includes an operation unit 60, a display unit 62, a route search request unit 64, a route guide unit 66, a positioning unit 68, an area storage unit 70, a position information transmission unit 72, a prediction information reception unit 74, The prediction notification unit 76, the notification information reception unit 78, and the notification unit 80 are configured. Each unit constituting the user terminal 20 can be realized, for example, by using various devices, using a storage area such as a memory or a storage device, or executing a program stored in the storage area by a processor. it can.

  The operation unit 60 receives various operations on the user terminal 20, and is realized by, for example, operation buttons, a touch panel, a voice recognition device, or the like.

  The display unit 62 displays various information on the user terminal 20, and is realized by, for example, a liquid crystal display, an organic EL (Electroluminescence) display, or the like.

  The route search request unit 64 can receive a user input for performing a route search, generate a route search request, and transmit it to the navigation server 10. The route search request includes, for example, information such as a departure place, a waypoint, and a destination, and information indicating various conditions when performing a route search.

  The route guidance unit 66 outputs information for route guidance to the display unit 62 based on the route guidance information transmitted from the navigation server 10 in response to the route search request. The route guidance information includes, for example, information about a route such as a node ID and a link ID, information about a map including the route, information about facilities around the route, and the like. The route guidance information may be transmitted from the navigation server 10 at a different timing depending on the type of information. For example, information such as a node ID and a link ID indicating a route may be transmitted at the start of route guidance, and facility information and map information may be transmitted as needed according to the current position of the user terminal 20.

  The positioning unit 68 can measure the current position of the user and output information indicating the current position such as latitude and longitude. The positioning unit 68 may be capable of outputting information indicating the moving direction and moving speed of the user. For example, the positioning unit 68 can include a current position measuring unit such as a GPS (Global Positioning System) unit, an acceleration sensor, or an electronic compass.

  The area storage unit 70 stores area information indicating a dangerous area. The area information may be generated, for example, in response to a user operation that designates a specific area on the map as a dangerous area in the user terminal 20 or may be transmitted from the navigation server 10. For example, when a dangerous area can be set individually for each user, the area information indicating the dangerous area set by another user may be transmitted from the navigation server 10.

  The position information transmission unit 72 generates position information indicating the current position based on the positioning result of the positioning unit 68 and transmits the position information to the navigation server 10. In the present embodiment, the position information transmission unit 72 transmits the position information to the navigation server 10 only when the current position is in the danger area based on the area information stored in the area storage unit 70. To do. Note that the position information transmission unit 72 may transmit the position information to the navigation server 10 regardless of whether or not the current position is in the danger area. Further, the position information transmitting unit 72 may transmit information indicating the moving direction and moving speed in the position information.

  The prediction information receiving unit 74 receives the prediction information transmitted from the navigation server 10. The prediction information is generated, for example, when a route search is performed in the navigation server 10 and transmitted to the user terminal 20. In addition, in response to a transmission request from the prediction information receiving unit 74, prediction information may be generated in the navigation server 10 and transmitted to the user terminal 20.

  Based on the prediction information received by the prediction information receiving unit 74, the prediction notification unit 76 notifies the user of information related to the danger that is predicted on the searched route. Specifically, the prediction notification unit 76 can notify the user of the presence of another user who is predicted to pass through the dangerous area that the user plans to pass. FIG. 9 is a diagram illustrating an example of a screen related to risk prediction information displayed based on the prediction information illustrated in FIG. 5. In the example illustrated in FIG. 9, the prediction notification unit 76 outputs information indicating that there is a possibility that the user may pass the vehicle on a difficult road that is on the route that the user is scheduled to pass based on the prediction information. . For example, as illustrated in FIG. 9, the prediction notification unit 76 can output information indicating a position where a danger is predicted and a predicted time.

  The notification information receiving unit 78 receives notification information transmitted from the navigation server 10. The notification information is generated based on the position information transmitted from the user terminal 20 in the navigation server 10 and transmitted to the user terminal 20. Further, the prediction information may be generated in the navigation server 10 in response to a transmission request from the notification information receiving unit 78 and transmitted to the user terminal 20.

  The notification unit 80 notifies the user of information related to danger in the passing area based on the notification information received by the notification information receiving unit 78. Specifically, when the user is passing through the dangerous area, the notification unit 80 can notify the user of the presence of another user passing through the area. FIG. 10 is a diagram illustrating an example of a screen relating to danger information displayed based on the notification information illustrated in FIG. 8. In the example illustrated in FIG. 10, the notification unit 80 outputs information indicating that another vehicle is passing on a road that is difficult for the user to pass on the basis of the notification information. In the example illustrated in FIG. 10, the notification unit 80 outputs information indicating the position, moving direction, and moving speed of another vehicle based on the notification information. Note that the screen shown in FIG. 10 is merely an example of the display mode, and the mode of notification based on the notification information is arbitrary. For example, the notification unit 80 may output information indicating only the presence or absence of danger. In addition, the notification unit 80 can adopt not only information output to the screen but also notification by sound, notification by vibration, and the like.

  FIG. 11 is a flowchart illustrating an example of prediction information generation processing in the navigation server 10. When receiving a route search request from the user terminal 20 (S1101), the route search unit 30 executes a route search in response to the route search request (S1102). Then, the route search unit 30 stores the route search information obtained by the route search in the route search information storage unit 32 in association with the user ID (S1103).

  Subsequently, the area specifying unit 36 refers to the user-specific area storage unit 34 and specifies the danger area set for the user who transmitted the route search request (S1104). The traffic prediction unit 38 predicts a risk in the identified danger area based on the route search information of a plurality of users stored in the route search information storage unit 32 (S1105). Specifically, the traffic prediction unit 38 predicts, for example, a user's travel time in the area and a user's travel time in the area. Then, the traffic prediction unit 38 predicts danger in the area based on the predicted traffic time. For example, if the difference between the user's traffic time and another user's traffic time is within a predetermined time, the traffic prediction unit 38 can determine that a dangerous situation may occur in the area.

  The prediction information transmission part 40 produces | generates prediction information based on the prediction result of the traffic prediction part 38, and transmits to the user terminal 20 (S1106). As a result, the user terminal 20 is notified of the risk prediction information as illustrated in FIG.

  FIG. 12 is a flowchart illustrating an example of notification information generation processing in the navigation server 10. The position information storage unit 42 stores the position information transmitted from the user terminal 20 in the position information storage unit 42 (S1201). As described above, the position information may be transmitted from the user terminal 20 only when the current position of the user is within the danger area of the user or another user.

  Based on the position information received from the user terminal 20, the notification information transmitting unit 48 determines whether or not the current position of the user is within the danger area set for the user (S1202). And if it is in a danger area (S1202: Y), the notification information transmission part 48 will also make the said area another user based on the positional information on the other user memorize | stored in the positional information storage part 42. FIG. It is determined whether the vehicle is passing (S1203). If another user is passing through the area (S1203: Y), the notification information transmitting unit 48 generates notification information for notifying the user that another user is passing through the area. Then, it is transmitted to the user terminal 20 (S1204). Thereby, the danger information is notified in the user terminal 20 as illustrated in FIG.

  Note that the notification information transmission unit 48 can transmit direction information and speed information to the user terminal 20 based on the detection results of the movement direction detection unit 44 and the movement speed detection unit 46 in the notification information. Further, the notification information transmission unit 48 targets only another user who has a predetermined relationship with the moving direction of the user, based on the detection results of the moving direction detection unit 44 and the moving speed detection unit 46, or a predetermined speed, for example. Alternatively, only users who are less than a predetermined speed may be targeted.

  The present embodiment has been described above. According to the present embodiment, the user of the user who is traveling through the danger area based on the area information indicating the preset danger area and the position information transmitted from the plurality of user terminals 20 according to the present embodiment. Notification information for notifying the presence of another user who is passing through the area can be transmitted to the terminal 20. Therefore, even in an environment where the user terminals 20 cannot communicate with each other wirelessly, it is possible to alert a user who is traveling in a dangerous area.

  Further, according to the present embodiment, the notification information transmitted by the navigation server 10 includes position notification information indicating the position of another user. Therefore, it is possible to notify the user who is traveling in the dangerous area of the position of another user who is traveling in the area.

  Moreover, according to this embodiment, the navigation server 10 can transmit notification information including direction information indicating the moving direction of another user. Therefore, it becomes possible to notify the user traveling in the dangerous area of the moving direction of another user traveling in the area.

  Further, according to the present embodiment, the navigation server 10 can transmit the notification information when the moving direction of the user and the moving direction of another user are in a predetermined relationship. Therefore, for example, it is possible to notify the presence of another user in consideration of the user's moving direction, such as excluding users moving in the same direction.

  Moreover, according to this embodiment, the navigation server 10 can transmit notification information including speed information indicating the moving speed of another user. Therefore, it is possible to notify the user traveling in the dangerous area of the moving speed of another user traveling in the area.

  In addition, according to the present embodiment, the navigation server 10 determines, based on the route search information of a plurality of users, the user terminal 20 of a user who is scheduled to pass through the dangerous area of another user who is scheduled to pass through the area. Prediction information for notifying existence can be transmitted. Thereby, it is possible to notify the user in advance that a dangerous situation is expected to occur in an area on the searched route.

  Further, according to the present embodiment, the navigation server 10 determines that the difference between the time when the user is expected to pass through the dangerous area and the time when another user is expected to pass through the area is within a predetermined time. In addition, the prediction information can be transmitted. As a result, it is possible to increase the accuracy of risk prediction.

  Moreover, according to this embodiment, the navigation server 10 can specify a dangerous area for every user. Thereby, it becomes possible to notify danger prediction information and danger information in an area required by the user.

  Further, according to the present embodiment, the user terminal 20 can transmit the position information to the navigation server 10 only when the current position is within the danger area. In this case, the user terminal 20 can receive notification information within a predetermined area, and does not need to transmit position information in other areas. That is, it becomes possible to respond to a request from a user who does not want to collect action trajectories.

  Note that this embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. The present invention can be changed / improved without departing from the spirit thereof, and the present invention includes equivalents thereof.

  For example, in the present embodiment, the route search is performed in the navigation server 10 in response to a route search request from the user terminal 20, but the route search may be performed in the user terminal 20.

  In the present embodiment, the navigation server 10 and the user terminal 20 are provided with functions related to navigation. However, the navigation server 10 and the user terminal 20 may not have functions related to navigation.

DESCRIPTION OF SYMBOLS 10 Navigation server 20 User terminal 30 Route search part 32 Route search information storage part 34 Area storage part according to user 36 Area specification part 38 Traffic prediction part 40 Prediction information transmission part 42 Position information storage part 44 Movement direction detection part 46 Movement speed detection part 48 Notification Information Transmission Unit 60 Operation Unit 62 Display Unit 64 Route Search Request Unit 66 Route Guidance Unit 68 Positioning Unit 70 Area Storage Unit 72 Location Information Transmission Unit 74 Prediction Information Reception Unit 76 Prediction Notification Unit 78 Notification Information Reception Unit 80 Notification Unit

Claims (5)

A route search unit that performs a route search in response to a route search request from a user;
Route search information indicating the result of the route search , a route search information storage unit for storing route search information including the expected passage time of each node included in the route;
An area storage unit for storing area information indicating a preset area;
Regardless of the current position of each user, based on the route search information and the area information, a traffic prediction unit that predicts a user passing through the area;
A prediction information transmitting unit that transmits prediction information for notifying a user terminal of a first user scheduled to pass through the area of the presence of a second user scheduled to pass through the area;
An information providing system comprising: The information providing system according to claim 1,
The traffic prediction unit predicts a traffic time that is a time when a user travels through the area based on the route search information,
The prediction information transmission unit transmits the prediction information when the first user's travel time and the second user's travel time are within a predetermined time.
Information provision system. The information providing system according to claim 1 or 2,
The area storage unit stores the area information in association with a user identifier,
The prediction information transmitting unit is configured to send a second user who is passing the area to a user terminal of the first user who is passing the area indicated by the area information corresponding to the user identifier of the first user. The presence of
Information provision system. In a computer comprising a route search unit, a route search information storage unit, an area storage unit, a traffic prediction unit, and a prediction information transmission unit,
The route search unit performs a route search in response to a route search request from the user,
The route search information storage unit is route search information indicating a result of the route search , and stores route search information including an expected passage time of each node included in the route ;
The area storage unit stores area information indicating a preset area;
The traffic prediction unit predicts a user who passes the area based on the route search information and the area information regardless of the current position of each user,
Sending prediction information for notifying the user terminal of the first user scheduled to pass through the area of the presence of the second user scheduled to pass through the area;
Information provision method. On the computer,
A route search unit that performs a route search in response to a route search request from a user;
Route search information indicating the result of the route search , a route search information storage unit for storing route search information including the expected passage time of each node included in the route;
An area storage unit for storing area information indicating a preset area;
Regardless of the current position of each user, based on the route search information and the area information, a traffic prediction unit that predicts a user passing through the area;
A prediction information transmitting unit that transmits prediction information for notifying a user terminal of a first user scheduled to pass through the area of the presence of a second user scheduled to pass through the area;
A program to realize

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