JP6189089B2 - Distribution server and information distribution system - Google Patents

Description

  Embodiments described herein relate generally to a distribution server and an information distribution system.

  Conventionally, a technique for providing traffic information to a vehicle traveling on a road has been proposed. The traffic information is generated based on traffic information collected from various sensors installed on the road. Further, when an accident or disaster occurs, unique information such as an accident or disaster is added to the traffic information. The generated traffic information is used for display on a road information display board and distribution to an information terminal device such as a car navigation system.

  At present, the traffic information displayed or distributed is information for the general public that does not depend on the position of the traveling vehicle, so there is also unnecessary information that is not related to the road on which the vehicle is traveling. Many are included. For this reason, the user has to view the information determined to be necessary after determining whether the provided traffic information is information necessary for the user.

  Therefore, in recent years, ITS (Intelligent Transport Systems) has been proposed. This ITS can transmit and receive information between an ITS spot installed in the vicinity of a road and a vehicle. A DSRC (Dedicated Short Range Communication) communication technique is used for transmission / reception of this information. This DSRC communication technology realizes two-way communication using a limited spot in a short distance and a small zone using, for example, a radio wave of 5.8 GHz band.

JP 2007-323117 A

"FM multiplex broadcasting and beacon", General Information Center for Road Traffic Information and Communication Systems, [online], [Search May 7, 2013], Internet <URL; http://www.vics.or.jp/structure /beacon.html ">

  However, when the DSRC communication technology is used, there is a problem that the amount of information that can be provided to the vehicle-mounted device that can communicate with the ITS spot is limited.

The distribution server according to the embodiment includes a first storage unit, a second storage unit, a reception unit, an acquisition unit, and a transmission unit. The first storage unit includes communication terminal identification information for identifying a portable communication terminal, and a vehicle-mounted device for identifying a vehicle-mounted device capable of communicating with an ITS (Intelligent Transport Systems) spot provided in the vicinity of a road on which the vehicle can pass. The identification information is stored in association with each other. A 2nd memory | storage part matches and memorize | stores the ITS identification information which identifies an ITS spot, and the ITS position information which shows the position where the said ITS spot was installed. The receiving unit receives accident position information indicating a position where the accident has occurred. The acquisition unit identifies an ITS spot through which a vehicle to be notified of an accident passes based on the positional relationship between the accident position information and the ITS position information, and based on the ITS identification information that identifies the identified ITS spot. The vehicle-mounted device identification information mounted on the vehicle that has passed the specified ITS spot among the vehicles that communicated with the ITS spot is acquired from the management server that manages the information of the vehicle that has passed the ITS spot . The transmission unit transmits ITS identification information for identifying the identified ITS spot to the management server, while using the communication terminal identification information associated with the vehicle-mounted device identification information acquired by the acquisition unit in the first storage unit. The accident information is transmitted to the communication terminal via the wide area communication network.

FIG. 1 is a diagram illustrating a configuration example of an emergency information distribution system according to an embodiment. FIG. 2 is a block diagram illustrating a configuration of the emergency information distribution server according to the embodiment. FIG. 3 is a diagram illustrating a table structure of the in-vehicle device correspondence information storage unit according to the embodiment. FIG. 4 is a diagram illustrating a table structure of the ITS spot position information storage unit according to the embodiment. FIG. 5 is a block diagram illustrating a software configuration of the mobile communication terminal according to the embodiment. FIG. 6 is a sequence diagram illustrating a processing procedure when an accident occurs in the emergency information distribution system according to the embodiment.

  FIG. 1 is a diagram illustrating a configuration example of an emergency information distribution system according to the present embodiment. In the example illustrated in FIG. 1, the road operator server 101, the emergency information distribution server 102, the ITS management server 103, and the communication operator server 104 are included.

  A vehicle-mounted device 121 is mounted on the vehicle 120 traveling on the road. The vehicle-mounted device 121 enables communication with the ITS spots 111 to 113 using DSRC (Dedicated Short Range Communication) communication technology. The DSRC communication technology is a communication technology for performing communication within a narrow range, and enables one-to-one bidirectional communication within a range of approximately several hundred meters. For this purpose, a radio beacon (5.8 GHz band) is used, but this embodiment does not limit the communication technology, and other communication technologies may be used.

  Note that the vehicle 120 according to the present embodiment is one or a plurality of vehicles that are the subject of the description, and any vehicle on which the vehicle-mounted device 121 that can communicate with the DSRC communication technology is mounted. It may be a vehicle.

  The ITS spots 111 to 113 are installed in the vicinity of the road, and travel information on the road and transmit and receive information to and from the vehicle 120 located within a communicable range. The ITS spots 111 to 113 are provided at regular intervals along the highway or the like. And the ITS spots 111-113 receive the identification number which identifies the onboard equipment 121 from the onboard equipment 121 mounted in the vehicle 120, for example. Then, the ITS spots 111 to 113 transmit the received identification number of the vehicle-mounted device 121 to the ITS management server 103 via the road network 150.

  The ITS management server 103 manages history information of vehicles that have transmitted / received to / from the ITS spots 111 to 113 (in other words, vehicles that have passed the ITS spots 111 to 113).

  In the present embodiment, the ITS management server 103 identifies the identification number of the vehicle-mounted device 121 received by the ITS spots 111 to 113, the identification information of the ITS spots 111 to 113, and the time information when the vehicle 120 passes the ITS spots 111 to 113. Are stored in association with each other. Thereby, this embodiment can recognize the position of the vehicle 120 which passed through based on the position in which the ITS spots 111-113 identified by identification information were provided. In other words, the ITS management server 103 manages the positional information of the vehicle 120 that has passed the ITS spots 111 to 113 in association with the identification number of the vehicle-mounted device 121 mounted on the vehicle 120. In addition, although this embodiment demonstrates the example which recognizes the position of the vehicle 120 from the identification information of the ITS spots 111-113, even if the positional information on the vehicle 120 is acquired from GPS etc. which are mounted in the vehicle 120. good.

  The road operator server 101 is a server managed by a road operator who manages roads, and is a server that distributes information on roads collected by the road operator to various people. For example, when a failure such as an accident 170 occurs on the road, the road operator server 101 inputs information (for example, accident information) related to the failure automatically or manually. The road operator server 101 distributes the input information to various people and devices (for example, the emergency information distribution server 102).

  Accident information includes a variety of information related to traffic accidents. For example, the time when the accident occurred, the accident location information indicating the location where the accident occurred, the details of the accident, the situation at the accident site, traffic restrictions, etc. Information, recovery prospects, traffic congestion information due to accidents, etc. Furthermore, information such as a detour route for avoiding the position where the accident has occurred may be included.

  The emergency information distribution server 102 is a server that distributes accident information when a traffic accident or the like occurs. The emergency information distribution server 102 according to the present embodiment makes a transmission request to the telecommunications carrier server 104, so that the driver of the vehicle 120 that has passed the ITS spots 111 to 113 carries it via the wide area communication network 160. The accident information can be transmitted to the mobile communication terminal 130. The wide area communication network 160 is, for example, a telephone communication line that can communicate with a mobile phone. As the mobile communication terminal 130, a mobile phone terminal, a smartphone, a tablet terminal, and the like are conceivable. Furthermore, a car navigation terminal that can communicate with a telephone communication line (wide area communication network 160) is also conceivable.

  The telecommunications carrier server 104 is a server provided by a telecommunications carrier to access the mobile communication terminal 130 from another device (for example, the emergency information distribution server 102), and communicates with the mobile communication terminal 130 via the wide area communication network 160. Can send and receive information.

  In the conventional traffic information distribution system, when a traffic accident occurs, detailed information on the traffic accident cannot be distributed only to vehicles traveling on the road related to the traffic accident. On the other hand, by using the DSRC communication technology via the ITS spots 111 to 113, it may be possible to provide information limited to the vehicle 120 (the vehicle-mounted device 121 mounted on the vehicle 120). limited.

  Therefore, in the present embodiment, when a traffic accident occurs, detailed accident information is provided to the mobile communication terminal 130 etc. held by the driver of the vehicle traveling on the road related to the traffic accident. I decided to send it. Since the accident information is distributed from the emergency information distribution server 102 via the wide area communication network 160, more detailed information can be transmitted without limiting the amount of information based on the narrow area communication by the DSRC communication technology. it can.

  Moreover, by transmitting to the mobile communication terminal 130, it becomes possible to provide information in cooperation with other applications installed in the mobile communication terminal 130. In addition, the narrow area communication by the DSRC communication technology can communicate only about several hundred meters, but in the present embodiment, the accident information is distributed via the wide area communication network 160, thereby enabling communication with the ITS spots 111 to 113. The accident information can be provided in real time to the vehicle 120 that does not exist in the vehicle.

  Next, the configuration of the emergency information distribution server 102 will be described. FIG. 2 is a block diagram showing the configuration of the emergency information distribution server 102 according to the present embodiment. As shown in FIG. 2, the emergency information distribution server 102 includes an on-vehicle device correspondence information storage unit 201, an ITS spot position information storage unit 202, a reception control unit 203, an acquisition unit 204, a transmission control unit 205, Is provided.

  The on-vehicle device correspondence information storage unit 201 stores the on-vehicle device 121 mounted on the vehicle 120 and the portable communication terminal 130 such as a driver riding on the vehicle 120 in association with each other. FIG. 3 is a diagram illustrating a table structure of the in-vehicle device correspondence information storage unit 201 according to the embodiment. As illustrated in FIG. 3, the on-vehicle device correspondence information storage unit 201 stores the identification information of the mobile communication terminal 130 and the identification number of the ITS spot compatible on-vehicle device 121 in association with each other.

  In the present embodiment, it is assumed that the identification information of the mobile communication terminal 130 and the identification number of the ITS spot compatible vehicle-mounted device 121 are associated in advance. Note that any method may be used as the association method regardless of a known method. And since the onboard equipment corresponding | compatible information storage part 201 has memorize | stored the said correlation, when the onboard equipment 121 of the vehicle 120 which should distribute accident information can be pinpointed, the mobile communication matched with the said onboard equipment 121 Accident information can be transmitted to the terminal 130.

  The ITS spot position information storage unit 202 stores information regarding the positions of the ITS spots 111 to 113. FIG. 4 is a diagram illustrating a table structure of the ITS spot position information storage unit 202 according to the embodiment. As illustrated in FIG. 4, the ITS spot position information storage unit 202 associates ITS position information indicating the positions where the ITS spots 111 to 113 are installed with ITS identification information for identifying the ITS spots 111 to 113. I remember.

  In this embodiment, since the ITS spot position information storage unit 202 stores the association, the ITS spots 111 to 113 installed in the vicinity of the road related to the position of the accident can be specified.

  The reception control unit 203 receives information from other devices. For example, when a traffic accident occurs on the road, the reception control unit 203 receives accident information including accident position information indicating a position where the traffic accident has occurred from the road operator server 101. The transmission control unit 205 transmits information to other devices.

  The acquisition unit 204 identifies the vehicle-mounted device 121 mounted on the vehicle 120 that should be notified of the accident that occurred at the position identified by the received accident position information among the vehicles 120 that communicated with the ITS spots 111 to 113. Get the identification number.

  The acquisition unit 204 according to the present embodiment, based on the positional relationship between the accident position information and the ITS position information, the ITS spot 111 through which the vehicle 120 to be notified of the traffic accident that occurred at the position identified by the accident position information. -113 are specified. And the acquisition part 204 acquires the identification information of the onboard equipment 121 mounted in the vehicle 120 which communicated with the identified ITS spots 111-113 (passed).

  More specifically, after the acquisition unit 204 specifies the ITS spots 111 to 113, the transmission control unit 205 transmits ITS identification information for identifying the specified ITS spots 111 to 113 to the ITS management server 103.

  The acquisition unit 204 communicates with the ITS spots 111 to 113 that identify the transmitted ITS identification information from the ITS management server 103 via the reception control unit 203. An identification number for identifying the device 121 is acquired.

  Then, the transmission control unit 205 uses the identification number for identifying the vehicle-mounted device 121 acquired by the acquisition unit 204 and the identification information of the mobile communication terminal 130 associated with the vehicle-mounted device correspondence information storage unit 201 to use the communication carrier server. By instructing the terminal 104, traffic accident information is transmitted to the mobile communication terminal 130 via the wide area communication network 160. As a result, the mobile communication terminal 130 can distribute traffic accident information related to the vehicle 120 that the driver holding the mobile communication terminal 130 is driving.

  FIG. 5 is a block diagram illustrating a software configuration of the mobile communication terminal 130 according to the embodiment. As shown in FIG. 5, the mobile communication terminal 130 has an emergency information distribution application 501 and a map application 502 installed therein.

  The emergency information distribution application 501 includes a reception control unit 511, a notification unit 512, a reading unit 513, and a display control unit 514.

  The reception control unit 511 receives accident information from the emergency information distribution server 102 via the communication carrier server 104.

  When the reception control unit 511 receives the accident information, the notification unit 512 performs a notification indicating that the accident information has been received. As a notification method, any method such as sounding an alarm sound may be used.

  The reading unit 513 reads out the accident information received by the reception control unit 511 by voice. When the driver is driving, it is difficult to visually check the mobile communication terminal 130. Therefore, the mobile communication terminal 130 according to the present embodiment will explain the accident information in detail by voice. Thereby, the driver can recognize in real time the situation of an accident related to the road on which the vehicle 120 that the driver is driving is traveling. The detailed information on the accident includes, for example, the time of occurrence, the contents of the accident, the situation of the accident site, information on traffic restrictions, recovery prospects, traffic congestion information, and the like.

  The display control unit 514 displays image information related to the received accident information. In the present embodiment, display of a traffic jam location due to the accident, display of a detour route due to the accident, and the like can be considered as the image information. Thereby, when there is a passenger in addition to the driver in the vehicle, the passenger can inform the driver of the situation of the accident.

  Further, the map application 502 may be linked with the emergency information distribution application 501. For example, the map application 502 can obtain the position where the accident occurred from the accident information received by the emergency information distribution application 501 and provide various situations to the driver. For example, navigation of a detour route, information on a store that takes a break until congestion is alleviated, and the like may be provided.

  As described above, in this embodiment, by notifying the mobile communication terminal 130 of the traffic information via the wide area communication network 160, information related to the traffic accident can be provided to the driver in real time and in detail.

  Next, processing when an accident occurs in the emergency information distribution system according to the present embodiment will be described. FIG. 6 is a sequence diagram illustrating the above-described processing procedure in the emergency information distribution system according to the present embodiment.

  First, when an accident occurs, the road operator server 101 inputs accident information including various information about the accident including the position where the accident occurred (step S601). Next, the road operator server 101 transmits the input accident information to various devices including the emergency information distribution server 102 (step S602).

  And the reception control part 203 of the emergency information delivery server 102 receives accident information from the road provider server 101 (step S611). When the accident information is received, the acquisition unit 204 of the emergency information distribution server 102 includes the ITS location information stored in the ITS spot location information storage unit 202 and the accident information (the location where the accident occurred). The ITS spot installed on the road estimated to have an influence on the accident is specified from the accident position information (step S612). The vehicle 120 that has passed through the ITS spot is a target for distribution of the received accident information.

  Next, the transmission control unit 205 of the emergency information distribution server 102 transmits ITS identification information for identifying the specified ITS spot to the ITS management server 103 (step S613).

  Then, the ITS management server 103 receives the ITS identification information from the emergency information distribution server 102 (step S621). The ITS management server 103 is mounted on the vehicle 120 that has passed the ITS spot identified by the received ITS identification information from the history information managing the vehicle 120 that has passed the ITS spot within a predetermined time. The in-vehicle device number is extracted (step S622). In addition, what is necessary is just to use any one or more out of an accident occurrence position and occurrence time (for example, radius xkm from an accident occurrence position, y minutes before occurrence time etc.) for the onboard equipment number extracted.

  Thereafter, the ITS management server 103 outputs the extracted in-vehicle device number to the emergency information distribution server 102 (step S623).

  And the acquisition part 204 of the emergency information delivery server 102 acquires the onboard equipment number from the ITS management server 103 via the reception control part 203 (step S614).

  Thereafter, the acquisition unit 204 refers to the onboard device correspondence information storage unit 201 and acquires the identification information of the mobile communication terminal 130 associated with the acquired onboard device number (step S615).

  Next, the transmission control unit 205 of the emergency information distribution server 102 requests transmission of detailed accident information to the mobile communication terminal 130 identified by the acquired identification information (step S616).

  Then, the communication carrier server 104 accepts a detailed accident information transmission request addressed to the mobile communication terminal 130 (step S631).

  Next, according to the received transmission request, the communication carrier server 104 transmits detailed accident information to the mobile communication terminal 130 via the wide area communication network 160 (step S632).

  Then, the emergency information distribution server 102 determines whether or not the accident has been recovered based on the accident information distributed regularly or irregularly from the road operator server 101 (step S617). If the accident has not been recovered (step S617: No), the processing is performed again from step S613. On the other hand, when it is determined that the accident has been recovered (step S617: Yes), the process is terminated.

  As a result, only the driver who is driving the vehicle 120 traveling in the vicinity of the accident or on the road where the accident occurred provides detailed information on the accident in real time via the mobile communication terminal 130 of the driver. be able to. The mobile communication terminal 130 controls the emergency information distribution application 501 to notify that the accident information has been received and to read out the accident information by voice. By providing information via the wide area communication network 160, it is possible to provide information regarding various accidents without limiting the amount of information. Furthermore, since the information can be provided before arriving at the next ITS spot, the driving policy corresponding to the accident can be changed more quickly (for example, the route can be changed).

  In a conventional traffic information distribution system, when a traffic accident occurs, detailed information on the accident cannot be distributed only to vehicles around the accident site. On the other hand, although it is conceivable to use the DSRC communication technology, since it is narrow-area communication, communication cannot be performed in real time and the amount of information is limited.

  In contrast, in the emergency information distribution system according to the present embodiment, the accident information is distributed to the driver's mobile communication terminal 130 via the wide area communication network 160, thereby limiting the distribution destination of the accident information. In the above, detailed information can be provided to the driver without limiting the amount of information.

  That is, in the emergency information distribution system according to the present embodiment, by providing the emergency information distribution server 102 and the like, it is possible to distribute information on traffic accidents only to the vehicles 120 that are in the range of influence when an accident occurs. Furthermore, by using the existing wide-area communication network 160 such as a communication network for mobile phones, detailed information on the accident (occurrence time, accident details, accident site response status, traffic restrictions, etc.) without developing a new infrastructure Information, recovery prospects, road traffic congestion information, etc.) in real time.

  As described above, in the emergency information distribution system according to the present embodiment, since the vehicle-mounted device 121 and the communication terminal such as the mobile communication terminal 130 are associated with each other in advance, the detailed information on the accident is expected to be affected by the accident. Can be transmitted only to the communication terminal associated with the connected vehicle 120.

  Further, in the emergency information distribution system according to the present embodiment, the recovery of the accident ends with the identification of the vehicle 120 that distributes the accident information and the distribution of the information addressed to the mobile communication terminal of the driver who is on the identified vehicle. By performing this process at regular intervals, the latest information can be distributed only to necessary users.

  The emergency information distribution system according to the present embodiment shows an example of the configuration, and various modes can be considered. For example, the ITS spot position information storage unit and the in-vehicle device correspondence information storage unit are not limited to the emergency information distribution server 102 but may be provided on the telecommunications carrier server 104 or the ITS management server 103 side. . Moreover, you may perform a cooperation process with servers other than the apparatus shown in FIG.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 101 ... Road provider server, 102 ... Emergency information delivery server, 103 ... ITS management server, 104 ... Communication provider server, 111-113 ... ITS spot, 120 ... Vehicle, 121 ... Onboard equipment, 130 ... Portable communication terminal, 150 DESCRIPTION OF SYMBOLS ... Road network, 160 ... Wide area communication network, 201 ... Onboard equipment corresponding | compatible information storage part, 202 ... ITS spot position information storage part, 203 ... Reception control part, 204 ... Acquisition part, 205 ... Transmission control part, 501 ... Emergency information delivery Application, 502 ... Map application, 511 ... Reception control unit, 512 ... Notification unit, 513 ... Reading unit, 514 ... Display control unit

Claims (2)

Corresponds to communication terminal identification information that identifies portable communication terminals and OBE identification information that identifies OBEs that can communicate with ITS (Intelligent Transport Systems) spots located near roads where vehicles can pass A first storage unit for storing information;
A second storage unit that associates and stores ITS identification information for identifying an ITS spot and ITS position information indicating a position where the ITS spot is installed;
A receiver that receives accident location information indicating the location where the accident occurred;
Based on the positional relationship between the accident position information and the ITS position information, an ITS spot through which a vehicle to be notified of an accident passes is identified, and the ITS spot is identified based on the ITS identification information that identifies the identified ITS spot. An acquisition unit that acquires the vehicle-mounted device identification information mounted on the vehicle that has passed the identified ITS spot among the vehicles that communicated with the ITS spot, from a management server that manages information on the vehicle that has passed ,
While transmitting the ITS identification information for identifying the specified ITS spot to the management server, the communication terminal identification information associated with the in-vehicle device identification information acquired by the acquisition unit in the first storage unit. Using a transmitter for transmitting information on the accident to the communication terminal via a wide area communication network;
A distribution server comprising: In an information distribution system including at least a portable communication terminal and a distribution server,
The distribution server
Corresponds to communication terminal identification information that identifies portable communication terminals and OBE identification information that identifies OBEs that can communicate with ITS (Intelligent Transport Systems) spots located near roads where vehicles can pass A first storage unit for storing information;
A second storage unit that associates and stores ITS identification information for identifying an ITS spot and ITS position information indicating a position where the ITS spot is installed;
A receiver that receives accident location information indicating the location where the accident occurred;
Based on the positional relationship between the accident position information and the ITS position information, an ITS spot through which a vehicle to be notified of an accident passes is identified, and the ITS spot is identified based on the ITS identification information that identifies the identified ITS spot. An acquisition unit that acquires the vehicle-mounted device identification information mounted on the vehicle that has passed the identified ITS spot among the vehicles that communicated with the ITS spot, from a management server that manages information on the vehicle that has passed ,
While transmitting the ITS identification information for identifying the specified ITS spot to the management server, the communication terminal identification information associated with the in-vehicle device identification information acquired by the acquisition unit in the first storage unit. used, via a wide area communications network, and a transmission unit for transmitting the information of the accident to the communication terminal,
The communication terminal is
An output unit for outputting the information on the accident received from the distribution server by voice;
Comprising
Information distribution system.

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