JP2010176506A - Information transmission/reception system, apparatus for moving object and information transmission/reception method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information transmission/reception system acquiring the restoration status of a road when a disaster occurs in details and in real time, and guiding a route corresponding to the restoration status. <P>SOLUTION: The information transmission/reception system includes an information distribution organization for distributing disaster-stricken road information indicating the damaged road and an apparatus for a moving object. The apparatus for the moving object includes a disaster-stricken road information acquisition part for acquiring disaster-stricken road information, a display, a position detection part, and a route guide for guiding a route. The system further includes a route guide control part for indicating an impassable road at the display on the basis of the disaster-stricken road information and controlling the route guide to guide the route excluding the impassable road. The system further includes a passing information transmission part for transmitting passing information indicating a passed road and vehicle size information to the information distribution organization. The information distribution organization updates the disaster-stricken road information on the basis of the received passing information and size information and distributes the updated disaster-stricken road information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information transmission / reception system, a mobile device, and an information transmission / reception method that perform route guidance for a mobile body and switch a route guidance method when a disaster occurs.

  In recent years, various additional functions have been developed in an information transmission / reception system for a mobile object represented by a car navigation system. For example, an information transmission / reception system for notifying a driver of disaster information by receiving and displaying disaster information announced by a public institution at the time of a disaster with a navigation device (= mobile device) has been put into practical use. .

  In relation to the above, Patent Document 1 discloses an information notification system that connects a mobile terminal to a host center at the time of a disaster such as an earthquake and notifies a user of disaster information corresponding to the current position of the mobile terminal. In this information notification system, the mobile terminal transmits position information indicating the current position of the mobile terminal to the host center via the communication network. The host computer of the host center retrieves information corresponding to the given position information from the database and gives it to the mobile terminal.

JP-A-9-54895

  However, the information notification system of Patent Document 1 notifies disaster information announced by public organizations such as the police and the administration when a disaster occurs. For this reason, only a rough notification about road restoration status, for example, road restoration information in units of municipalities is sent. Therefore, the user cannot know the road restoration situation at a detailed level, for example, the road restoration situation in units of nodes connecting predetermined intersections.

  The present invention has been made in view of the above problems, and is an information transmission / reception system capable of acquiring detailed and real-time road restoration status in the event of a disaster and performing route guidance according to the restoration status, The object is to provide a physical apparatus and an information transmission / reception method.

  In order to achieve the above object, an information transmission / reception system according to the present invention includes an information distribution organization that distributes disaster road information indicating a damaged road, a disaster road information acquisition unit that acquires the disaster road information, and an image display. A display unit that performs the navigation, a position detection unit, a route guide unit that acquires position information by the position detection unit and performs route guidance by the display unit, and a road that is not allowed to pass based on the disaster road information is displayed. And a mobile device provided with a route guidance control unit that controls the route guidance unit so as to perform route guidance while excluding roads that are not allowed to pass.

  According to this configuration, the information transmission / reception system of the present invention is configured to include an information distribution organization that distributes disaster road information indicating a damaged road, and a mobile device mounted on a vehicle or the like. The mobile device includes a disaster road information acquisition unit that acquires disaster road information and a display unit that displays an image. Furthermore, a position detection unit that acquires the current position of the vehicle and a route guide unit that performs route guidance using the position detection unit are provided. Furthermore, a route guidance control unit that controls the route guidance unit so as to perform route guidance that excludes roads that are not allowed to pass is shown on the display unit based on disaster road information. Thereby, when a disaster occurs, it is possible to perform route guidance excluding roads that are not allowed to pass due to the disaster.

  In order to achieve the above object, the information transmission / reception system of the present invention is configured such that the mobile device includes passage information indicating a road through which a wireless communication unit and a vehicle on which the mobile device is mounted have passed. A transmission information transmission unit that controls the wireless communication unit to transmit to the information distribution organization, and the information distribution organization determines the content of the disaster road information based on the passage information received from the mobile device. Update.

  According to this configuration, the mobile device mounted on the vehicle includes the passage information transmission unit that transmits the passage information indicating the road that has passed to the information distribution organization by the wireless communication unit. The information distribution organization that has received the passage information updates the contents of the disaster road information based on the passage information. That is, the disaster road information is updated so that the road indicated in the passage information is changed to a passable road. For this reason, compared with the case where only the disaster information which a public organization distributes is used, the content update of more detailed disaster road information can be performed.

  In order to achieve the above object, in the information transmission / reception system according to the present invention, the passage information transmission unit transmits size information indicating the size of the vehicle together with the passage information to the information distribution organization. The disaster level indicating the degree of damage for each damaged road is determined based on the received passage information and the size information, the disaster level is included in the disaster road information and distributed, and the route guidance control unit includes: Based on the disaster level and the size of the vehicle included in the received disaster road information, a road on which the vehicle can pass and a road on which the vehicle cannot pass are determined.

  According to this configuration, the passage information transmission unit transmits the size information of the vehicle on which the mobile device is mounted together with the passage information. Receiving this, the information distribution organization determines a disaster level indicating the degree of damage to the damaged road based on the received size information, and updates and distributes the disaster road information. In response to this, the route guidance control unit of the mobile device discriminates a road that is allowed to pass and a road that is not allowed to pass based on the disaster level and the size of the receiving vehicle. For this reason, route guidance suitable for the size of the receiving vehicle can be performed.

  In order to achieve the above object, the information transmission / reception system of the present invention changes the display color of the road image included in the route guidance image displayed on the display unit by the route guidance control unit based on the disaster level. To do.

  According to this configuration, the route guidance control unit changes the display color of the road image included in the route guidance image displayed on the display unit based on the disaster level. For this reason, the user can confirm the disaster level of each road based on the display color.

  In order to achieve the above object, in the information transmission / reception system according to the present invention, the route guidance control unit accepts designation of a disaster level that permits passage of the vehicle, and excludes roads that exceed the accepted disaster level. The route guidance unit is controlled to perform route guidance.

  According to this configuration, the route guidance control unit receives from the user in advance designation of a disaster level of a road that is allowed to pass. Then, the route guidance unit is controlled so as to perform route guidance by excluding roads having a degree of damage exceeding the accepted disaster level. For this reason, the user can change the setting of the disaster level that enables traveling according to the mode of operation.

  In order to achieve the above object, in the information transmission / reception system according to the present invention, the passage information transmission unit transmits toll road passage information indicating that the vehicle has passed a toll road together with the passage information to the information distribution organization. Then, the information distribution organization updates the contents of the disaster road information so as to indicate that the toll road indicated by the toll road passage information received from the mobile device can pass.

  According to this configuration, the passage information transmission unit transmits toll road passage information indicating passage of a toll road such as an expressway together with the passage information. Receiving this, the information distribution organization updates the contents of the disaster road information so that the toll road indicated by the toll road passage information is allowed to pass. For this reason, the vehicle on the transmission side does not require a position detection unit such as a GPS (Global Positioning System) device, and uses an existing ETC (Electronic Toll Collection System) onboard device or the like to indicate information indicating a road that has passed. Can be sent.

  In order to achieve the above object, the mobile device of the present invention includes a disaster road information acquisition unit that acquires disaster road information indicating a damaged road, a display unit that displays an image, a position detection unit, A route guidance unit that acquires position information by the position detection unit and performs route guidance by the display unit, and a road that is not allowed to pass based on the disaster road information is indicated on the display unit and a road that is not allowed to pass is excluded. And a route guidance control unit for controlling the route guidance unit so as to perform route guidance.

  According to this configuration, the mobile device of the present invention includes a disaster road information acquisition unit that acquires disaster road information, and a display unit that displays an image. Furthermore, a position detection unit that acquires the current position of the vehicle and a route guide unit that performs route guidance using the position detection unit are provided. Furthermore, a route guidance control unit that controls the route guidance unit so as to perform route guidance that excludes roads that are not allowed to pass is shown on the display unit based on disaster road information.

  In order to achieve the above object, the mobile device of the present invention includes a wireless communication unit, passage information indicating a road on which the vehicle on which the mobile device is mounted, and a size indicating the size of the vehicle. A route information transmission unit that controls the wireless communication unit to transmit information to an information distribution organization that distributes the disaster road information, and the route guidance control unit is based on the passage information and the size information. The disaster road information updated by the information distribution organization is received by the wireless communication unit, and based on the received disaster road information and the size of the vehicle, the road is not allowed to pass through the vehicle. Discriminate from the road.

  According to this configuration, the mobile device includes the passage information transmitting unit that transmits the passage information indicating the road that has passed and the size information indicating the vehicle size to the information distribution organization by the wireless communication unit. The route guidance control unit receives the disaster road information updated by the information distribution organization based on the passage information and the size information by the wireless communication unit. Then, based on the received disaster road information and the size of the received vehicle, a road where the vehicle can pass and a road where the vehicle cannot pass are discriminated.

  In order to achieve the above object, an information transmission / reception method of the present invention includes an information transmission step of transmitting passage information indicating a road through which a vehicle has passed and size information indicating the size of the vehicle, the passage information and the size. An information distribution step of receiving information, determining a disaster level indicating a degree of damage for each damaged road based on the both information, and distributing the disaster road information indicating the disaster level, and receiving the disaster road information Based on the disaster road information receiving step, the disaster level included in the received disaster road information and the size of the vehicle that has received the disaster road information, the road on which the vehicle can pass and the road on which the vehicle cannot pass A route guidance control step for indicating a road that is not allowed to pass based on the result of the discrimination and performing route guidance by excluding the road that is not allowed to pass is displayed. It is characterized in that it comprises a flop.

  According to this configuration, in the information transmission / reception method of the present invention, in the information transmission step, transmission information indicating the road on which the vehicle has passed and size information indicating the size of the vehicle are transmitted. Further, in the information distribution step, based on the received passage information and size information, the disaster level indicating the degree of damage for each damaged road is determined, and the disaster road information indicating the disaster level is distributed. In the disaster road information receiving step, disaster road information is received. Further, in the route guidance control step, based on the disaster level and the size of the vehicle, the road on which the vehicle can pass and the road on which the vehicle cannot pass are discriminated, and the road that cannot pass is shown on the display unit, and the road cannot pass. Route guidance is performed excluding roads.

  According to the present invention, it is possible to notify the user of the road restoration situation at the time of disaster occurrence in detail and in real time. The restoration road is classified according to the size of the vehicle that can pass, and route guidance is performed based on the classification result. For this reason, it is possible to perform suitable route guidance for each vehicle on which the in-vehicle device is mounted.

It is a block diagram which shows the internal structure of the apparatus for moving bodies of this invention. It is a block diagram which shows the system configuration | structure of the information transmission / reception system of this invention. It is a flowchart which shows the information delivery process by the information delivery organization of this invention. It is a flowchart which shows the route guidance process by the apparatus for moving bodies of this invention. It is a table figure which shows the structure of disaster road information. It is a table figure which shows the structure of disaster road information. It is a table figure which shows the structure of disaster road information. It is a screen figure which shows an example of a map drawing screen. It is a screen figure which shows an example of a map drawing screen. It is a screen figure which shows an example of a map drawing screen.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, embodiment shown here is an example and this invention is not limited to embodiment shown here.

<1. Information transmission system configuration>
FIG. 2 is a block diagram showing a configuration of an information transmission / reception system according to an embodiment of the present invention. This system is configured to include at least a vehicle 1, a host center 2 (= information distribution organization), and a disaster information center 3.

  The vehicle 1 is a moving body on which a navigation device 100 (= a moving body device) described later is mounted. The host center 2 is an information distribution facility including the server 200. The server 200 receives disaster information described later from the disaster information center 3, and generates disaster road information based on the contents of the disaster information. The generated disaster road information is distributed to the navigation device 100 of the vehicle 1. Details of the disaster road information will be described later.

  In addition, the server 200 transmits passage information indicating a traveling history of a general road and highway passage information indicating a traveling history of a highway (= toll road) (= toll road passage information) transmitted from the vehicle 1 by radio waves. The function of updating the contents of disaster road information to be received and distributed is provided. Note that the wireless communication between the vehicle 1 and the host center 2 is performed by using a mobile phone communication network using a radio wave such as a W-CDMA (Wideband Code Division Multiple Access) method.

The disaster information center 3 is a public institution that distributes disaster information indicating a disaster occurrence area, a disaster occurrence situation, and the like through a wide-area communication network when a disaster occurs. The GPS satellite 4 is arranged on the satellite orbit and transmits a specific radio wave (for example, an L1 radio wave of 1.575 GHz) to the ground GPS receiver.
<2. Internal configuration>

  FIG. 1 is a block diagram showing an internal configuration of a navigation apparatus 100 according to an embodiment of the present invention. In addition, the navigation apparatus 100 of this embodiment is an electronic device which is mounted on the vehicle 1 and constitutes a part of the information transmission / reception system, for example. Moreover, the form provided with the function as what is called a portable navigation apparatus which can be easily attached or detached with respect to a vehicle may be sufficient. In this case, the user can use the road information receiving function, which is a part of the function outside the vehicle, by removing the navigation device 100 from the vehicle when getting off the vehicle.

  As shown in the block diagram of FIG. 1, the navigation apparatus 100 of the present invention includes at least a control unit 11, a map drawing unit 12, a recording unit 13, an input unit 14, an LCD (Liquid Crystal Display) 15 (= display unit), a display. A control unit 16, a speaker 17, a GPS antenna 18 (= position detection unit), a positioning navigation device 19 (= position detection unit), an antenna 20 (= wireless communication unit), and a communication control unit 21 (= wireless communication unit) are included. It is configured as follows.

  The control unit 11 controls the driving of each member of the navigation device 100 organically and controls the route guidance processing and the like. The control unit 11 is a central processing unit for performing overall control of each device (for example, the positioning navigation device 19). Moreover, the control part 11 is provided with the disaster road information acquisition part 11a-the passage information transmission part 11d as a function part implement | achieved by running a program on the arithmetic processing apparatus with which the control part 11 is provided. Details of processing performed by each functional unit will be described later.

  The map drawing unit 12 is a drawing unit that draws a map for navigation and guidance information. The image drawn by the map drawing unit 12 is given to the display control unit 16 and displayed on the LCD 15. Various image data and character data used for drawing by the map drawing unit 12 are recorded in the recording unit 13 in advance.

  The recording unit 13 is a medium for recording various data, and has a plurality of recording units for each type of data to be recorded. In the present embodiment, as shown in FIG. 1, the recording unit 13 is configured to include a map information recording unit 13a and a disaster road information recording unit 13b.

  The map information recording unit 13a is a recording unit for recording map information including a map image to be displayed on the LCD 15 when performing display processing of the current region using the GPS function. The disaster road information recording unit 13 b is a recording unit for recording disaster road information received from the host center 2. The disaster road information is information including a road point number, a disaster level, and an update date as shown in FIGS.

  The road point number is a management number assigned to each section by dividing the road shown on the map into predetermined sections (= road points) in advance. The road point number assigning method is determined in advance between the server 200 and the navigation device 100, and the corresponding section can be specified if the road point number is specified.

  The disaster level indicates the degree of road damage in the section indicated by the road point number. The greater the number, the greater the degree of damage. In the present embodiment, it is defined that 0 when a non-disaster occurs and 10 immediately after a disaster occurs. After that, when passage information is transmitted from the passage information transmission unit 11d described later to the server 200, the disaster level is changed in the server 200 based on the passage information.

  The update date and time is a column indicating the latest date and time when the disaster level for each road point is updated. For example, as shown in FIG. 5, “2010 0131 1201” means that the latest update was made at 12:01 on January 31, 2001.

  The input unit 14 is an input interface for a user to issue a route guidance instruction to the navigation device 100, a display instruction of disaster road information, and the like. The input unit 14 is configured to include, for example, a plurality of push buttons, touch sensors, and the like. Alternatively, a touch panel type integrated with the LCD 15 may be used.

  The LCD 15 is a display device that displays various information held by the navigation device 100, such as a map image and a disaster information image. The display control unit 16 encodes the image data into a signal that matches the signal format of the LCD 15, performs D / A conversion, and outputs an image signal. The image signal output from the display control unit 16 is sent to the LCD 15 and displayed as an image.

  The speaker 17 is a loudspeaker for outputting a sound based on an analog sound signal obtained by a sound processing unit (not shown) decoding sound data and performing D / A conversion. As voice data to be used, for example, voice data for route guidance recorded in the recording unit 13 in advance is used.

  The GPS antenna 18 is a receiver for receiving a specific radio wave emitted from the GPS satellite 4. The positioning navigation apparatus 19 generates latitude and longitude information by decoding and calculating signals received from the plurality of GPS antennas 18. In addition, a navigation device using a gyro or the like is provided.

The antenna 20 is an antenna for transmitting and receiving radio waves to and from the host center 2. For example, a plurality of diversity antennas are used. The communication control unit 21 demodulates radio waves received by the antenna 20. In addition, when an instruction to transmit various information such as passage information is received from the passage information transmission unit 11d, the digital signal including the various information is modulated and the radio wave is transmitted by the antenna 20.
<3. About route guidance processing>

  Here, the outline of the route guidance processing performed by the navigation device 100 and the server 200 according to the first embodiment of the present invention will be described using the flowcharts of FIGS. 3 and 4. 3 shows a processing flow in the server 200, and FIG. 4 shows a processing flow in the navigation device 100.

  First, FIG. 3 will be described. The flow shown in FIG. 3 is started when the power source of the server 200 is activated and communication with the disaster information center 3 becomes possible. After the start of this process, the server 200 determines whether or not disaster information has been received from the disaster information center 3 in step S110. The disaster information is distributed from the disaster information center 3 to the host center 2 when a predetermined disaster occurs, for example, when an earthquake occurs.

  If reception has not been detected, the process proceeds to step S140 described later. When disaster information is received, the server 200 generates disaster road information shown in FIG. 6 based on the received disaster information in step S120. Immediately after the occurrence of the disaster, all road points in the disaster occurrence area indicated in the disaster information are set to the disaster level 10. In step S130, the disaster road information is transmitted to the vehicle 1.

  Next, in step S140, the server 200 determines whether or not passage information or highway passage information has been received from the vehicle 1. If no reception has been detected, the process proceeds to step S170 described later. When the passing information or the expressway passing information is received, the server 200 updates the disaster road information based on the received passing information or the expressway passing information in step S150. Thereby, for example, the disaster road information is updated to the state shown in FIG. Details of a specific update method will be described later.

  Next, in step S160, the server 200 transmits the updated disaster road information to the plurality of vehicles 1. However, if it is not necessary to perform the update process in step S150, that is, if there is no difference between the received content and the current disaster road information content, it is not necessary to perform transmission.

  Next, in step S170, the server 200 determines whether or not the recovery information indicating the disaster recovery status for each region is received from the disaster information center 3. When reception is not detected, it transfers to step S110 again. When the restoration information is received, in step S180, the disaster level of the road point existing in the restoration area indicated in the restoration information is initialized. As a result, the road disaster information is in a state shown in FIG. 5, for example, that is, the disaster level of each road point is 0.

  Next, the server 200 transmits the updated disaster road information to the plurality of vehicles 1 in step S190. When the transmission is completed, the process proceeds to step S110 again.

  Next, FIG. 4 will be described. The flow shown in FIG. 4 is started when the power of the navigation device 100 is activated and communication with the host center 2 and the GPS satellite 4 becomes possible. After the start of this process, the route guidance unit 11b controls the map drawing unit 12 to display a map in the vicinity of the vehicle 1 on the LCD 15 based on the position information obtained from the GPS satellite 4 in step S210.

  At the time of step S210, since disaster road information has not been received, the disaster road information recorded in the disaster road information recording unit 13b is in the state shown in FIG. 5 (= disaster level 0). For this reason, the map drawing unit 12 is controlled to perform map drawing for normal use. In addition, when the route guidance instruction | indication by designation | designated destination is received, the route guidance part 11b displays the various information for route guidance on a map image. For example, an arrow indicating the direction of travel is displayed or highlighted by changing the color of the travel path.

  Next, in step S220, the disaster road information acquisition unit 11a determines whether disaster road information has been received from the server 200 of the host center 2. If the disaster road information has not been received, the map drawing content is updated as necessary in step S240 described later, and then the process proceeds to step S250. When the disaster road information is received, the disaster road information acquisition unit 11a updates the disaster road information recorded in the disaster road information recording unit 13b based on the received disaster road information in step S230. As a result, the recorded disaster road information is in the state shown in FIG. 6, for example, that is, the disaster level of each road point is 10.

  Next, in step S240, the route guidance control unit 11c controls the map drawing unit 12 to perform map drawing for disaster based on the updated disaster road information. Specifically, on the basis of the disaster level of each road point number and the size information indicating the size of the vehicle 1 on which the navigation device 100 is mounted, the inaccessible road is determined and highlighted. Even when disaster road information is not received, the map drawing contents are updated as necessary. For example, the map drawing content is updated as the vehicle 1 moves.

  The vehicle 1 has a predetermined disaster level that can be traveled for each size. For example, a small vehicle can travel on a road with a disaster level of 0 to 6, and a medium vehicle can travel on a road with a disaster level of 0 to 4. In this case, if the vehicle 1 is a small vehicle, the road corresponding to the road point number of the disaster level 7 to 10 becomes a non-passable road.

  In addition, size classification, such as a small vehicle and a medium size vehicle, is performed based on the width of a vehicle, for example. For example, it is assumed that an arrangement has been made in advance in the present system, such as a small car if the width of the vehicle is less than 1.7 m, and a medium-sized car if the width is 1.7 m to 2.5 m. The size information is assumed to be received from the user and recorded in the recording unit 13 when the in-vehicle device 100 is mounted on the vehicle 1.

  The inaccessible road is highlighted, for example, by being displayed semi-transparently or blinking on the map. As a result, the map drawing screen displayed on the LCD 15 changes, for example, from the state shown in FIG. 8 to the state shown in FIG.

  FIG. 8 is a map drawing screen when the vehicle 1 is a small car and the content of the disaster road information is in the state shown in FIG. In addition, the broken line and broken line arrow in a figure are for divide | segmenting a road for every road point, and are not displayed on an actual map drawing screen. In FIG. 5, all road points have a disaster level of 0, that is, they can pass unconditionally, and therefore all road points (10001 to 10005) shown in FIG. 8 are displayed as solid lines. 9 and 10 are map drawing screens corresponding to the disaster road information shown in FIG.

  In FIG. 7, the disaster level of road point 10004 is 5, and the disaster level of road point 10005 is 8. Here, it is assumed that the vehicle 1 is a small car and the trafficable disaster level is 0-6. In this case, as shown in FIG. 9, the road point 10005 is displayed semi-transparently (= highlighted), indicating that no traffic is allowed.

  Further, it is assumed that the vehicle 1 is a medium-sized vehicle and the disaster level that can be passed is 0 to 4. In this case, as shown in FIG. 10, the road point 10004 and the road point 10005 are displayed in a translucent manner, indicating that no traffic is allowed. Since all roads in the disaster area are at the disaster level 10 immediately after the disaster occurs, all roads in the disaster area are displayed translucently.

  Next, the passage information transmitting unit 11d determines whether or not the vehicle 1 is traveling in step S250. If it is not running, the process proceeds to step S220 again. When traveling, the passage information transmitting unit 11d generates passage information indicating the road on which the vehicle 1 has traveled and size information indicating the size of the vehicle 1 in step S260, and uses the antenna 20 and the communication control unit 21. Transmit to the host center 2. The road that has traveled is determined in units of road points based on longitude and latitude information obtained by the GPS antenna 18 and the positioning navigation device 19. Then, passage information is generated using the road point number of the determined road point.

  Next, in step S270, the passage information transmitting unit 11d determines whether or not the vehicle 1 has passed through the entrance / exit of the expressway. The determination as to whether or not the vehicle has passed the entrance / exit of the expressway is performed using an ETC vehicle-mounted device connected to the control unit 11 although not shown in FIG.

  If it does not pass through the entrance / exit of the expressway, the process proceeds to step S220 again. When passing through the entrance / exit, the passage information transmitting unit 11d generates expressway passage information indicating the entrance / exit that has passed in step S280, and transmits it to the host center 2 using the antenna 20 and the communication control unit 21, and then proceeds to step S220. Transition.

  The server 200 of the host center 2 that has received the passing information transmitted by the above process or the expressway passing information updates the disaster level and the like included in the disaster road information from the acquired information (step S150 in FIG. 3). ). Then, the updated disaster road information is distributed (step S160 in FIG. 3).

  For example, it is assumed that the vehicle 1 is a small vehicle that can travel on a road having a disaster level of 0 to 6. It is assumed that the vehicle 1 travels on a road point number 10005 having a disaster level of 8. Upon receiving this passing information, the server 200 updates the disaster level of the road point number 10005 shown in FIG. 7 to 6 (= the maximum disaster level that a small car can pass).

  Alternatively, it is assumed that the vehicle 1 is a medium-sized vehicle capable of traveling on a road having a disaster level of 0 to 4, and has traveled on a road point number 10005. In this case, the host center 2 that has received the passing information updates the disaster level of the road point number 10005 shown in FIG. 7 to 4 (= the maximum disaster level that a medium-sized vehicle can pass).

  Alternatively, it is assumed that the vehicle 1 is a large vehicle that can travel on a road having a disaster level of 0 to 2 and travels on a road point number 10005. In this case, the host center 2 that has received the passing information updates the disaster level of the road point number 10005 shown in FIG. 7 to 2 (= the maximum disaster level that a large vehicle can pass). At the time of update, the date information included in the “update date / time” column is also updated.

According to the present embodiment described above, not only the one-way communication information distribution from the host center 2 to the vehicle 1 but also the two-way information communication by transmitting the passage information and the highway passage information from the vehicle 1, Update disaster road information. Therefore, more detailed restoration status can be notified in real time as compared with road restoration information in units of regions distributed by public institutions. Further, by using the disaster road information, it is possible to carry out route guidance according to the restoration situation.
[Other embodiments]

  The present invention has been described with reference to the preferred embodiments and examples. However, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea. be able to.

Therefore, the present invention can also be applied to the following embodiments.
(A) In the above embodiment, the disaster level that can be passed is determined based on the size information of the vehicle 1 registered in advance, but the disaster level of the road that can be used as a route is previously designated by the user. Form may be sufficient. For example, when the user designates the disaster level of an available road as 6, regardless of the size of the vehicle, a road having a disaster level of 6 or less is normally displayed and is subject to route guidance.

  (B) In the above embodiment, the disaster road information acquisition unit 11a updates the disaster road information at the time when the disaster road information is received. However, the update timing may be changed by the user. The timing at which the passage information is transmitted from the navigation device 100 to the server 200 may be changed by the user. However, at the time of disaster recovery, the disaster recovery notification is notified all at once from the host center 2, so that the disaster road information is forcibly updated.

  (C) In the above embodiment, the in-vehicle navigation device 100 has been described as an example of the mobile device that performs the emergency route guidance processing of the present invention, but the embodiment is implemented in a mobile device other than this. But you can. For example, the embodiment may be implemented with a mobile phone, a portable GPS device, a PDA, or a laptop computer.

  (D) In the above embodiment, the various functional units of the navigation device 100 related to various processes of the present invention are realized by executing a program on an arithmetic processing unit such as a microprocessor. A form realized by this circuit may be used.

  (E) In the above-described embodiment, an example in which the mobile device and the GPS device that is the position detection unit are accommodated has been described as an example. For example, a configuration may be adopted in which the same operation as described above is performed by mutually providing a communication unit and performing data transfer via the communication unit. Further, the position detection unit is not limited to the GPS device, and a gyro sensor, a vehicle speed sensor, or the like may be used as the position detection unit.

  (F) In the above embodiment, the non-passable road is displayed semi-transparently, but the non-passable road may be displayed using another highlighting method. For example, a road where only small cars can pass (roads with a disaster level of 5-6 in the above example) is red, and a road where small cars and medium-sized cars can pass (roads with a disaster level of 3-4 in the above example) is yellow. It may be displayed in different colors according to the level. Thus, the user can intuitively recognize the size of the vehicle that can enter each road by the display color. In this case, the route guidance control unit 11c determines whether to use each color road for route guidance according to the size of the vehicle 1.

1 Vehicle 2 Host Center (Information Distributor)
3 Disaster Information Center 4 GPS Satellite 100 Navigation Device (Mobile Device)
DESCRIPTION OF SYMBOLS 11 Control part 11a Disaster road information acquisition part 11b Route guidance part 11c Route guidance control part 11d Passage information transmission part 12 Map drawing part 13 Recording part 14 Input part 15 LCD (display part)
18 GPS antenna (position detector)
19 Positioning navigation device (position detector)
20 Antenna (wireless communication part)
21 Communication control unit (wireless communication unit)
200 servers

Claims (9)

An information distribution organization that distributes disaster road information indicating the affected road,
A disaster road information acquisition unit that acquires the disaster road information, a display unit that displays an image, a position detection unit, and a route guide unit that acquires position information by the position detection unit and performs route guidance by the display unit And a route guidance control unit for controlling the route guidance unit so as to perform route guidance by indicating on the display unit roads that are not allowed to pass based on the disaster road information and excluding roads that are not allowed to pass. An information transmission / reception system comprising a mobile device. Passage information for controlling the wireless communication unit so that the mobile device transmits to the information distribution organization the wireless communication unit and passage information indicating a road on which the vehicle on which the mobile device is mounted has passed. A transmission unit,
The information distribution organization updates the content of the disaster road information based on the passage information received from the mobile device.
The information transmission / reception system according to claim 1. The passage information transmission unit transmits size information indicating the size of the vehicle together with the passage information to the information distribution organization,
The information distribution agency determines a disaster level indicating the degree of damage for each damaged road based on the received passage information and the size information, and distributes the disaster level in the disaster road information,
The route guidance control unit determines, based on the disaster level included in the received disaster road information and the size of the vehicle, a road on which the vehicle can pass and a road on which the vehicle cannot pass,
The information transmission / reception system according to claim 2. The route guidance control unit changes a display color of a road image included in a route guidance image displayed on the display unit based on the disaster level.
The information transmission / reception system according to claim 3. The route guidance control unit receives designation of a disaster level that permits passage of the vehicle, and controls the route guidance unit to perform route guidance by excluding roads that exceed the accepted disaster level. The information transmission / reception system described. The passage information transmission unit transmits toll road passage information indicating that the vehicle has passed a toll road together with the passage information to the information distribution organization,
The information distribution agency updates the content of the disaster road information to indicate that the toll road indicated by the toll road passage information received from the mobile device can pass.
The information transmission / reception system according to claim 2. A disaster road information acquisition unit that acquires disaster road information indicating a damaged road, a display unit that displays an image, a position detection unit, and a position detection unit that acquires position information and provides route guidance by the display unit And a route guidance control for controlling the route guidance unit to perform the route guidance by indicating the road that is not allowed to pass based on the disaster road information on the display unit and excluding the road that is not allowed to pass. And a moving body device. The wireless communication unit and the passage information indicating the road on which the vehicle on which the mobile device is mounted and the size information indicating the size of the vehicle are transmitted to an information distribution organization that distributes the disaster road information. A passage information transmission unit for controlling the wireless communication unit,
The route guidance control unit receives the disaster road information updated by the information distribution organization based on the passage information and the size information by the wireless communication unit, and the received disaster road information and the size of the vehicle To determine a road where the vehicle can pass and a road where the vehicle cannot pass,
The apparatus for moving bodies according to claim 7. An information transmission step of transmitting passage information indicating a road through which the vehicle has passed and size information indicating a size of the vehicle;
An information distribution step of receiving the passage information and the size information, determining a disaster level indicating a degree of damage for each damaged road based on the both information, and distributing the disaster road information indicating the disaster level;
A disaster road information receiving step for receiving the disaster road information;
Based on the disaster level included in the received disaster road information and the size of the vehicle that has received the disaster road information, a road where the vehicle can pass and a road where the vehicle cannot pass are determined, and the determination And a route guidance control step of performing route guidance by indicating a road that is not allowed to pass on the display unit based on the result and excluding the road that is not allowed to pass.

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