JP2008021030A - Evacuation guiding system for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an evacuation guiding system for a vehicle for guiding an evacuation method, and for achieving the proper selection of an evacuation place and the circumstance grasp of the occupant of another vehicle when an occupant becomes a victim of a disaster. <P>SOLUTION: This evacuation guiding system for a vehicle is provided with: a disaster occurrence location information acquisition means for acquiring disaster occurrence location information generated in a closed section from the outside; an own-vehicle location detection means for detecting the own-vehicle location in the closed section; an evacuation guide information creation means for creating evacuation guide information for performing the evacuation guide of the occupant of its own vehicle from the closed section based on evacuation facility information and the disaster occurrence location information and the information of the own-vehicle location stored in the evacuation facility information storage means; and an evacuation guide information output means for outputting the prepared evacuation guide information. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle evacuation guidance system.

  As the vehicle travels, the current position is detected by GPS (Global Positioning System), etc., and the current position is displayed on a display device together with a road map, and an appropriate route from the starting point to the destination The vehicle-mounted navigation device that guides the user with a display device or a voice output device contributes to efficient and safe driving for the user.

  In-vehicle navigation devices are provided with various functions in addition to route guidance. For example, in-vehicle navigation devices include a function for notifying passengers of external information in the vehicle, including traffic jams and traffic regulation sections. By providing appropriate information on the vehicle, a vehicle external information notification device or a vehicle route guidance device has been devised that allows a passenger to take action according to the situation (see Patent Document 1).

  In addition, a device that can be used even when detached from the vehicle is provided, and in the same manner as when used as a navigation device, the route can be guided to the destination while being carried by the user, which is suitable for in-vehicle use. In addition to being available, a navigation device has been devised that can exhibit an appropriate function for human use (see Patent Document 2).

  In addition, the route information from the departure point to the destination is divided and transmitted sequentially to shorten the time until the route is displayed on the display, and to send and receive data to and from the information center. Has been devised (see Patent Document 3).

Japanese Patent No. 03106792 Japanese Patent No. 03594011 JP 2004-020517 A

  In the configuration of Patent Document 1, since the guidance is performed by the display device of the navigation device, when there is a disaster in the tunnel and the evacuation route guided before getting off is not appropriate, another evacuation route is displayed. There is a problem that information and guidance cannot be performed. In addition, there is a problem in that it may not be possible to evacuate quickly because it is not possible to take into account the congestion status of the place to evacuate and to notify the countermeasures when the reached evacuation exit is congested. Furthermore, when a disaster occurs while operating with multiple vehicles, there may be cases where the evacuation method and location are different for each vehicle, but in this case, there is a problem that it is not possible to confirm the safety of each other. is there.

  In the configuration of Patent Document 2, it is not preferable to remove the navigation device from the vehicle when encountering a disaster because it hinders quick evacuation.

  In the configuration of Patent Document 3, information on traffic jams and accidents is transmitted / notified, but only an alternative route is searched, and evacuation guidance from a disaster occurrence point is not mentioned.

  Against the background of the above problems, the subject of the present invention is to guide the evacuation method / direction and route / distance that can act calmly and calmly when the occupant encounters a disaster, and to select the evacuation place appropriately and An object of the present invention is to provide an evacuation guidance system for a vehicle that makes it possible to grasp a passenger's situation.

Means for Solving the Problems and Effects of the Invention

  In the vehicle evacuation guidance system for solving the above-mentioned problem, a blocked section that does not have an escape branch road of the vehicle is defined on the base road section so as to cut out a part of the base road section. An evacuation facility information storage means for storing evacuation facility information including position information on at least the blockage section of the evacuation facility that is provided, and is capable of evacuating a person from the blockage section but not from the vehicle; Disaster occurrence position information acquisition means for acquiring disaster occurrence position information generated in the section from the outside, own vehicle position detection means for detecting the own vehicle position in the closed section, and evacuation equipment information stored in the evacuation equipment information storage means Evacuation guidance information creating means for creating evacuation guidance information for evacuating and guiding the passengers of the own vehicle from the blocked section based on the location information of the disaster and the location of the own vehicle, and the created evacuation And the evacuation guidance information output means for outputting the guide information, comprising the.

  Here, the closed section is defined as a road section on a tunnel, a bridge, or an expressway (a section not including an interchange, a junction, a service area, a parking area, or an emergency parking zone).

  With the above configuration, the latest and best evacuation guidance information can be created and output at all times based on evacuation facility information, disaster occurrence location information, and vehicle location information, and passengers can be safely guided to appropriate evacuation facilities. It becomes possible. Since it is not necessary to remove the in-vehicle navigation device at the time of evacuation as in the prior art, the evacuation time can be shortened. In addition, when the evacuation route guided before getting off the vehicle is not appropriate, there is no problem that other evacuation routes cannot be notified / guided.

  The evacuation guidance information creating means in the evacuation guidance system for a vehicle according to the present invention includes information on recommended evacuation facilities that should be recommended to occupants of the vehicle among evacuation facilities stored in the evacuation facility information storage means. The evacuation guidance information output unit may include a recommended evacuation facility determination unit that determines based on the position information and the vehicle position information, and the evacuation guidance information output unit may output the recommended evacuation facility information as evacuation guidance information.

  With the above configuration, evacuation equipment that is close to the vehicle and away from the disaster location can be determined as recommended evacuation equipment and output as evacuation guidance information. It becomes possible.

  Further, the vehicle evacuation guidance system of the present invention includes a traveling direction detection means for detecting the traveling direction of the own vehicle in the closed section, and the evacuation guidance information creating means includes the disaster occurrence position, the own vehicle position, and the traveling of the own vehicle. It can also be configured to create evacuation guidance information based on the direction.

  When getting off and evacuating before the location of the disaster, considering that there is a following vehicle, it is better to evacuate in the direction of travel of the own vehicle than to evacuate behind the own vehicle and understand the situation of the disaster. You can think about how to deal with the situation (evacuation, etc.). With the above configuration, it is possible to guide the passenger to the recommended evacuation facility more safely.

  Further, the evacuation guidance information creating means in the vehicle evacuation guidance system of the present invention continues traveling in the traveling direction by the own vehicle, provided that the disaster occurrence position is behind the own vehicle in the traveling direction of the own vehicle, It can also be configured to create evacuation guidance information to escape from the end exit of the closed section.

  If the disaster location is behind the vehicle, it is safer to get away from the disaster location sooner than to get off and evacuate. With the above configuration, it is possible to guide the occupant to evacuate more safely and appropriately.

  The vehicle evacuation guidance system according to the present invention has the requirements described in claim 2, and the recommended evacuation facility determination means is an evacuation facility that can be reached from the own vehicle position without passing through the disaster occurrence position on the closed section. Can be determined as the recommended evacuation facility.

  There is a high possibility that a secondary disaster will occur near the location of the disaster. In addition, it is not preferable to go through a disaster occurrence position in order to reach even an appropriate evacuation facility. With the above configuration, it is possible to guide the occupant more safely and appropriately by determining the evacuation facility that can be reached without going through the disaster occurrence location as the recommended evacuation facility.

  Further, the recommended evacuation facility determination means in the vehicle evacuation guidance system of the present invention is arranged such that when the disaster occurrence position is ahead of the own vehicle in the traveling direction of the own vehicle, the evacuation facility existing behind the own vehicle is If it is determined as the recommended evacuation facility and the disaster occurrence position is behind the own vehicle, the evacuation facility existing in front of the own vehicle may be determined as the recommended evacuation facility.

  With the above configuration, evacuation equipment located near the vehicle and away from the disaster location (direction) can be determined as recommended evacuation equipment and output as evacuation guidance information, so passengers can be evacuated more safely It becomes possible to do.

  Further, the recommended evacuation facility determination means in the vehicle evacuation guidance system of the present invention can be configured such that the evacuation facility closer to the vehicle position sets a higher priority for determination as the recommended evacuation facility.

  With the above configuration, the occupant can evacuate in a shorter time.

  Moreover, the vehicle evacuation guidance system of the present invention has the requirements described in claim 5, and the recommended evacuation facility determination means is an evacuation facility that can be reached from the own vehicle position without passing through the disaster occurrence position on the closed section. Therefore, the evacuation facility closer to the vehicle position can be configured to set a higher priority for determination as the recommended evacuation facility.

  Even if the evacuation facility is closest to the vehicle position, it cannot be said that the evacuation route is the optimum evacuation facility if the evacuation guide route passes through the disaster occurrence position from the vehicle position. With the above configuration, an evacuation facility that can be safely evacuated nearby can be determined as a recommended evacuation facility and output as evacuation guidance information, so that the passenger can be evacuated more safely.

  Further, the vehicle evacuation guidance system of the present invention has a congestion information acquisition unit that acquires congestion degree information of each evacuation facility, and the recommended evacuation facility determination unit determines a evacuation facility having a lower congestion level as a recommended evacuation facility. It can also be configured to set a higher priority.

  Even if the evacuation facility is closest and the evacuation guide route does not pass from the location of the vehicle to the location where the disaster occurred, if the evacuation facility is congested, it will continue until the evacuation is completed (from entering the evacuation facility) It takes a long time to reach an appropriate evacuation state. With the above configuration, an evacuation facility with a low degree of congestion can be determined as a recommended evacuation facility and output as evacuation guidance information, so that the time required for the entire evacuation can be shortened. If the time required for the entire evacuation is shortened, the possibility of encountering a dangerous situation during evacuation is reduced.

  The evacuation guidance information creating means in the vehicle evacuation guidance system of the present invention creates evacuation guidance route information from the own vehicle position to the recommended evacuation equipment based on the own vehicle position and the recommended evacuation equipment position information. The evacuation guide route information creating means may be provided, and the evacuation guide information output means may be configured to output the created evacuation guide route information as evacuation guide information.

  With the above configuration, the evacuation guidance route information to the recommended evacuation facility is output, so the occupant can evacuate according to the evacuation guidance route information to reach the recommended evacuation facility safely and quickly without getting lost. it can.

  Further, the vehicle evacuation guidance system of the present invention has evacuation distance calculation means for calculating an evacuation distance from the own vehicle position to the recommended evacuation equipment based on the position information of the recommended evacuation equipment, and evacuation guidance information output means The evacuation distance information may be included in the evacuation guidance information and output.

  With the above-described configuration, it is possible to estimate how far the recommended evacuation facility can be reached from the evacuation distance, so it is possible to evacuate calmly even in places with poor geographical guidance or poor visibility.

  The vehicular evacuation guidance system of the present invention further includes wide area disaster information acquisition means for acquiring disaster occurrence position information in a wide area including the own vehicle position and a closed section existing ahead in the base road section. The evacuation guidance information creation means, when the acquired disaster position is in the closed section in front of the own vehicle position and there is no wide area evacuation facility between the own vehicle position and the closed section, the immediately preceding closed section It can also be configured to create evacuation guidance information for other evacuation facilities.

  With the above configuration, evacuation guidance information to the evacuation equipment in the previous blockage section is created and output without entering the blockage section where the disaster occurred, so it is possible to evacuate with sufficient margin . Moreover, it will not be involved in the confusion or secondary disasters by approaching the disaster location.

  Moreover, the evacuation guidance information output means in the vehicle evacuation guidance system of the present invention can be configured to be a printing means for printing out the evacuation guidance information in the vehicle.

  In the prior art, since the evacuation guidance information is displayed on the display of the in-vehicle device, there is a problem that the evacuation guidance information cannot be seen when the passenger gets off. Even if the in-vehicle navigation device is removable from the vehicle, it is heavy and bulky, so it is not preferable to evacuate in addition to the personal items. However, with the above configuration, you can evacuate while checking the printed content (evacuation guidance information) with the printed information (paper, etc.) on the evacuation guidance information. It is possible to reach evacuation facilities more safely and reliably than evacuating.

  Moreover, the evacuation guidance information output means in the vehicle evacuation guidance system of the present invention can be configured to be a wireless transmission means for wirelessly transmitting the evacuation guidance information to the outside of the host vehicle.

  With the above configuration, a person who has received this evacuation guidance information can grasp the evacuation status or evacuation destination (evacuation facility) of the vehicle occupant who transmitted the evacuation guidance information. In addition, even if the content of the evacuation guidance information is updated after getting off the vehicle, the content is output, so if the occupant of the vehicle can receive the evacuation guidance information, Evacuate to the safest and reachable evacuation facility at that time.

  Further, the wireless transmission means in the vehicle evacuation guidance system of the present invention can be configured to wirelessly transmit the evacuation guidance information to the mobile communication terminal.

  Mobile communication terminals such as mobile phones and PDAs (Personal Data Assistants) are widely used. With the above configuration, even when the evacuation guidance information is updated after the occupant gets off, the content is output to the mobile communication terminal. Therefore, the owner (occupant) of the mobile communication terminal always has the latest evacuation guidance information. It is possible to evacuate to the safest and reachable evacuation facility at that time.

  Moreover, the wireless transmission means in the vehicle evacuation guidance system of the present invention can be configured to wirelessly transmit evacuation guidance information to another vehicle registered in advance.

  With the above configuration, when a disaster is encountered while traveling with a plurality of vehicles, the safety of each other can be confirmed by receiving evacuation guidance information from each vehicle.

  Hereinafter, a vehicle evacuation guidance system according to the present invention configured as a part of a vehicle-mounted navigation device will be described with reference to the drawings. Of course, the vehicle evacuation guidance system may be configured as an independent in-vehicle device instead of a part of the in-vehicle navigation device, or may be configured as a part of another in-vehicle device. FIG. 1 is a block diagram showing the configuration of an in-vehicle navigation device (hereinafter abbreviated as navigation device) 100. The navigation device 100 includes a position detector 1, a map data input device 6, an operation switch group 7, a remote control (hereinafter referred to as remote control) sensor 11, a voice synthesis circuit 24 for performing voice guidance, a speaker 15, a memory 9, and a display. 10, a transceiver 13, a hard disk device (HDD) 21, a LAN (Local Area Network) I / F (interface) 26, a control circuit 8 connected thereto, a remote control terminal 12, and the like.

  The position detector 1 is a well-known geomagnetic sensor 2, a gyroscope 3 that detects the rotational angular velocity of the vehicle, a distance sensor 4 that detects the travel distance of the vehicle, and a GPS receiver that detects the position of the vehicle based on radio waves from a satellite. Machine 5 is provided. Since these sensors 2, 3, 4, and 5 have errors of different properties, they are configured to be used while being complemented by a plurality of sensors. Depending on the accuracy, some of the above-described sensors may be used, and further, a steering rotation sensor or a wheel sensor of each rolling wheel, such as a vehicle speed sensor 23, may be used. The position detector 1 corresponds to the own vehicle position detecting means and the traveling direction detecting means of the present invention.

  As the operation switch group 7, for example, a touch panel 22 integrated with the display device 10 or a mechanical switch is used. The touch panel 22 is pressed when an electric circuit is wired on the screen of the display 10 in the X-axis direction and the Y-axis direction through a gap called a spacer on a glass substrate and a transparent film, and the user touches the film. Since the voltage value changes due to short-circuiting of a part of the wiring, a so-called resistance film method for detecting this as a two-dimensional coordinate value (X, Y) is widely used. In addition, a known so-called capacitance method may be used. In addition to the mechanical switch, a pointing device such as a mouse or a cursor may be used. Moreover, you may arrange | position the mechanical switch of the operation switch group 7 in the escutcheon which covers the indicator 10 and its periphery and becomes a design frame.

  It is also possible to input various instructions using the microphone 31 and the voice recognition unit 30. In this method, a voice signal input from the microphone 31 is processed by a voice recognition technique such as a well-known hidden Markov model in the voice recognition unit 30, and converted into an operation command corresponding to the result. Various instructions can be input through the operation switch group 7, the remote control terminal 12, the touch panel 22, and the microphone 31.

  The transmitter / receiver 13 is connected to a road traffic from a VICS (Vehicle Information and Communication System) center 14 by an optical beacon or a radio beacon output from a transmitter (not shown) provided along the road, for example. It is a device for receiving information or receiving FM multiplex broadcasting. Moreover, it is good also as a structure which can be connected to external networks, such as the internet, using the transmitter / receiver 13. FIG. The transceiver 13 corresponds to a wide area disaster information acquisition unit of the present invention.

  Further, by communicating with the ETC on-vehicle device 17, it is possible to capture the fee information received by the ETC on-vehicle device 17 from the roadside device (not shown) into the navigation device 100. Further, the ETC on-vehicle device 17 may be connected to an external network and communicate with the VICS center 14 or the like.

  The control circuit 8 is configured as a normal computer, and connects a well-known CPU 81, ROM 82, RAM 83, I / O 84 as an input / output circuit, A / D conversion unit 86, drawing unit 87, clock IC 88, and these components. A bus line 85 is provided. The CPU 81 controls the navigation program 21p and data stored in the HDD 21. The CPU 81 controls the reading / writing of data to / from the HDD 21. In addition, a program for performing a minimum necessary operation as the navigation device 100 may be stored in the ROM 82 in a case where the data read / write control from the CPU 81 to the HDD 21 becomes impossible. The control circuit 8 corresponds to the evacuation guidance information creation means, recommended evacuation equipment determination means, evacuation guidance route information creation means, and evacuation distance calculation means of the present invention.

  The A / D conversion unit 86 includes a well-known A / D (analog / digital) conversion circuit, and converts analog data input from the position detector 1 or the like to the control circuit 8 into digital data that can be calculated by the CPU 81, for example. It is.

  The drawing unit 87 generates display screen data to be displayed on the display unit 10 from map data 21m (described later) stored in the HDD 21 or the like, display data, and display color data.

  The clock IC 88 is also called a real-time clock IC, and sends or sets clock / calendar data in response to a request from the CPU 81. The CPU 81 acquires date / time information from the clock IC 88. Further, date and time information included in the GPS signal received by the GPS receiver 5 may be used. The date information may be generated based on a real-time counter included in the CPU 81.

  In addition to the navigation program 21p, the HDD 21 stores so-called map matching data for improving the accuracy of position detection, and map data 21m, which is a map database including road data representing road connections. The map data 21m stores predetermined map image information for display and road network information including link information and node information. The link information is predetermined section information constituting each road, and includes position coordinates, distance, required time, road width, number of lanes, speed limit, and the like. The node information is information that defines an intersection (branch road) and the like, and includes position coordinates, the number of right / left turn lanes, a connection destination road link, and the like. In addition, data indicating whether or not traffic is possible is set in the inter-link connection information. The map data 21m corresponds to the evacuation facility information storage means of the present invention.

  In addition, in the HDD 21, auxiliary information for route guidance, entertainment information, and other data can be written independently by the user and stored as user data 21u. Data and various information necessary for the operation of the navigation device 100 are also stored as the database 21d. The database 21d may be used as evacuation facility information storage means of the present invention.

  The navigation program 21p, map data 21m, user data 21u, and database 21d can be added and updated from the storage medium 20 via the map data input device 6. The storage medium 20 is generally a CD-ROM or DVD based on the amount of data, but may be another medium such as a memory card. Moreover, you may use the structure which downloads data via an external network.

  The memory 9 is composed of a rewritable device such as an EEPROM (Electrically Erasable & Programmable Read Only Memory) or a flash memory, and stores information and data necessary for the operation of the navigation apparatus 100. Has been. The memory 9 holds the stored contents even when the navigation device 100 is turned off. Further, instead of the memory 9, information and data necessary for the operation of the navigation device 100 may be stored in the HDD 21. Further, information and data necessary for the operation of the navigation device 100 may be stored separately in the memory 9 and the HDD 21.

  The display 10 is composed of a known color liquid crystal display, and includes a dot matrix LCD (Liquid Crystal Display) and a driver circuit (not shown) for performing LCD display control. The driver circuit uses, for example, an active matrix driving method in which a transistor is attached to each pixel so that the target pixel can be reliably turned on and off, and is based on a display command and display screen data sent from the control circuit 8. To display. Further, an organic EL (ElectroLuminescence) display or a plasma display may be used as the display 10.

  The speaker 15 is connected to a well-known voice synthesis circuit 24, and the digital voice data stored in the memory 9 or the HDD 21 in accordance with a command from the navigation program 21p is converted into analog voice by the voice synthesis circuit 24 and sent out. Note that speech synthesis methods include a recording / editing method in which speech waveforms are stored as they are or after being encoded and connected as necessary, and a text synthesis method in which corresponding speech is synthesized from character input information.

  The vehicle speed sensor 23 includes a rotation detection unit such as a known rotary encoder. For example, the vehicle speed sensor 23 is installed in the vicinity of the wheel mounting unit to detect the rotation of the wheel and send it to the control circuit 8 as a pulse signal. The control circuit 8 converts the number of rotations of the wheels into the speed of the vehicle, calculates the expected arrival time from the current position of the vehicle to a predetermined location, or calculates the average vehicle speed for each travel section of the vehicle.

  The LAN I / F 26 is an interface circuit for exchanging data with other in-vehicle devices and sensors via the in-vehicle LAN 27. Further, data may be taken from the vehicle speed sensor 23 or connected to the ETC on-vehicle device 17 via the LAN I / F 26.

  With this configuration, when the navigation program 21p is activated by the CPU 81 of the control circuit 8, the navigation device 100 allows the user to operate the operation switch group 7, the touch panel 22, the remote control terminal 12, or the voice from the microphone 31. When a route guidance process for displaying a destination route on the display 10 is selected from a menu (not shown) displayed on the display 10 by input, the following process is performed.

  That is, first, the user searches for a destination. The destination search method includes, for example, a method of specifying an arbitrary point on the map, a method of searching from the area where the destination is located, a method of searching from the telephone number of the destination, and a name of the destination from the Japanese syllabary table There are a method of searching by inputting the number of characters stored in the memory 9 as a facility frequently used by the user. When the destination is set, the current position of the vehicle is obtained by the position detector 1, and a process for obtaining an optimum guide route to the destination from the current position is performed. Then, the guidance route is displayed on the road map on the display 10 so as to guide the user to the appropriate route. As a method for automatically setting an optimum guide route, a method such as the Dijkstra method is known. In addition, at least one of the display 10 and the speaker 15 performs notification of a message according to an operation guidance or an operation state.

  The printer 19 is configured as a well-known inkjet printer, laser printer, or thermal printer. The output data created by the control circuit 8 is converted into print data corresponding to the output paper or output format by the printer driver program included in the navigation program 21p and printed. The printer 19 corresponds to the evacuation guidance information output means and printing means of the present invention.

  The communication unit 25 is configured as a well-known wireless communication device, and is used to perform wireless communication with the mobile phone 18 or the like that is the mobile communication terminal of the present invention based on a command from the control circuit 8. The communication unit 25 corresponds to disaster location information acquisition means, congestion information acquisition means, evacuation guidance information output means, and wireless transmission means of the present invention. You may use the communication unit 25 as a wide area disaster information acquisition means of this invention. Conversely, the transmitter / receiver 13 may be used as the disaster location information acquisition means, congestion information acquisition means, evacuation guidance information output means, and wireless transmission means of the present invention. The mobile phone 18 corresponds to the mobile communication terminal of the present invention.

  The evacuation guidance process will be described with reference to FIG. This process is included in the navigation program 21p and is repeatedly executed together with other processes of the navigation program 21p. First, wide area disaster information, which is disaster occurrence position information of a wide area including the own vehicle position and a closed section existing in front of it, is acquired (S1). For example, the wide area disaster information may be acquired from the VICS center 14 or may be acquired from an Internet server or the like connected to an external network via the communication unit 25.

  When the disaster occurrence information is included in the acquired wide area disaster information (S2: Yes), the disaster occurrence position information is acquired (S3). Next, the vehicle position information detected by the position detector 1 is acquired (S4). Next, wide area evacuation facility information (see FIG. 4; details will be described later) stored in the map data 21m or the database 21d is acquired (S5), the disaster occurrence position is ahead of the own vehicle position, and before the disaster occurrence position. If there is a wide area evacuation facility (S6: Yes), a notification is given by the display 10 or the speaker 15 so as to guide to the wide area evacuation facility (S9). FIG. 5 shows an example of the display screen of the display 10 when guiding to the wide area evacuation facility.

  FIG. 4 shows an example of wide area evacuation facility information. The wide area evacuation facility information includes the wide area evacuation facility and its position information. The wide area evacuation facility means, for example, a branch road to an interchange, junction, service area, parking area or emergency parking zone.

  On the other hand, when there is no wide area evacuation facility in front of the vehicle position (S6: No), evacuation guidance information is created (S7, details will be described later), and the created evacuation guidance information is output (S8, details will be described later). ).

  An example of evacuation guidance processing will be described with reference to FIG. The vehicle position is indicated by P, and the vehicle is traveling upward (tunnel 110) in the figure. The acquired wide area disaster information includes disaster occurrence position information indicating that a disaster has occurred in the tunnel 110 in front of the host vehicle (a position indicated by a cross). If the vehicle position P is in front of the interchange (IC), this interchange becomes a wide area evacuation facility, and it is notified that the vehicle exits from this interchange.

  On the other hand, when the own vehicle position P passes the interchange, the evacuation port 1 and the evacuation port 2 which are evacuation facilities in the section (that is, the closed section 1) before the tunnel (that is, the closed section 2) from the own vehicle position P. , Creates and outputs evacuation guidance information for guiding to any of the shelters (details will be described later). FIG. 6 shows an example of evacuation facility information stored in the map data 21m or the database 21d. The evacuation facility information includes the evacuation facility and its position information.

  The evacuation guidance information creation process corresponding to step S7 in FIG. 2 will be described with reference to FIG. First, the relationship between the disaster occurrence position, the own vehicle position, and the traveling direction of the own vehicle is grasped (S21). If the disaster occurrence position is not in front of the traveling direction of the host vehicle (S22: No), evacuation guidance information is generated to the effect that the vehicle travels as it is and passes through the blocked section (S23). In the case where the disaster occurrence position is ahead in the traveling direction of the host vehicle (S22: Yes) or in the case of the oncoming lane (S24: Yes), the evacuation guidance information is generated so that the vehicle travels as it is and passes through the blocked section. (S23). The traveling direction may be obtained by the gyroscope 3 or may be obtained from the history (change) of the vehicle position detected by the position detector 1.

  On the other hand, when the disaster occurrence position is in front of the own lane (S22: Yes → S24: No), an evacuation guidance route is searched (S25, details will be described later).

  The evacuation guidance route search process corresponding to step S25 of FIG. 7 will be described using FIG. First, the display 10 or the speaker 15 notifies that the search for the evacuation guide route is to be executed, such as “A disaster has occurred. Please wait for a while as the evacuation guide route is searched” (S41). . Next, the evacuation facility information in the closed section stored in the map data 21m or the database 21d is referred to (S42).

  And the distance (namely, evacuation distance) between each evacuation equipment and the own vehicle position in the said block | intersection area is calculated (S43). When the calculation of evacuation distances for all evacuation facilities is completed, the evacuation facilities are sorted in ascending order of evacuation distance (S44).

  Next, the congestion degree information included in the disaster occurrence position information is acquired (S45), and “evacuation distance is short” and “congestion degree is set to a predetermined threshold value for the evacuation facilities that have been sorted first in ascending order of evacuation distance. Re-sorting is performed under the condition “below” (S46). In other words, the evacuation facilities are "short evacuation distance and not crowded", "evacuation distance is not short but not crowded", "evacuation distance is short but crowded", "evacuation distance is not short and crowded Sorted in the order of The determination priority is determined by this sort order.

  The degree of congestion may be converted into a distance, and sorting may be performed based on a value obtained by adding the converted distance to the calculated evacuation distance.

  Next, an evacuation route from the vehicle position for these evacuation facilities is searched (S47). Then, it is determined whether the searched evacuation route passes through a predetermined range such as within a radius of 50 m from the disaster occurrence position (S48). Finally, among the evacuation facilities that “the congestion level is below a predetermined threshold” and “does not pass through a predetermined range from the disaster occurrence location”, the “decision distance is short and not crowded” has the highest priority. The evacuation facility that is higher and has the highest decision priority is determined as the recommended evacuation facility (S49).

  When the content of the acquired disaster location information is updated, the range of the disaster location expands, or the congestion level of the evacuation facility changes, the recommended evacuation is performed according to the content of the disaster location information in the above process each time Equipment is determined.

  The evacuation guidance information output process corresponding to step S8 of FIG. 2 will be described using FIG. First, the evacuation guidance information output destination (see FIG. 20, details will be described later) stored in the map data 21m or the database 21d is acquired (S61).

  When the evacuation guidance information output destination includes an external output destination such as the mobile phone 18 or another vehicle (S62: Yes), the created evacuation guidance information is output (transmitted) to the output destination ( Then, the result is notified by the display device 10 or the speaker 15, for example, "Evacuation guidance information has been transmitted to OO (output destination)" (S64).

  On the other hand, when there is no external output destination (S62: No), the display 10 or the speaker 15 notifies that there is no external output destination, for example, “There is no external output destination of evacuation guidance information” (S65). . When the output destination of the evacuation guidance information is the printer 19 (printing device) (S66: Yes), the evacuation guidance information is printed (S67), and the display 10 or the speaker 15 displays, for example, “Print the nearest evacuation guidance route. “Please evacuate immediately with this paper.” (S68).

  If there is no external output destination (S62: No), and the output destination of the evacuation guidance information is neither the printer 19 (printing apparatus) (S66: No), for example, the evacuation guidance information cannot be printed by the display 10 or the speaker 15. ”To notify that the print setting has not been made (S68).

  The evacuation guidance information reception process will be described with reference to FIG. When evacuation guidance information from another vehicle is received (S81), the contents are sequentially displayed (S82). When a plurality of pieces of evacuation guidance information are received, one piece of evacuation guidance information may be sequentially switched and displayed at a predetermined timing, or may be displayed collectively.

  A specific example of the evacuation guidance process described above will be described with reference to FIGS. In FIG. 11, the tunnel 110 of FIG. 3 is given as an example of a blocked section. In the vicinity of the entrance of the vertical line of the tunnel 110, information transmission devices 111 and 112 for transmitting information including disaster occurrence position information and warning devices 113 and 114 for displaying various information including disaster occurrence position information are installed.

  There are four evacuation facilities for the tunnel 110, namely, evacuation exits A, B, C, and D. FIG. 12 shows an example of evacuation facility information stored in the map data 21m or the database 21d. As shown in FIG. 12, the evacuation facility information includes the position of the evacuation facility for each traveling direction. When the closed section is a tunnel or a bridge, the entrance and exit may be regarded as an evacuation facility. The shape of the closed section may also be stored. FIG. 13 shows details of the positional relationship of each evacuation facility in the tunnel 110 corresponding to FIG.

  FIG. 14 shows an example of disaster occurrence position information transmitted from the information transmission devices 111 and 112. The disaster occurrence position information includes the disaster occurrence position (Q: see FIG. 11) and the congestion level of each evacuation facility. The location and availability of each evacuation facility may be included (because a specific evacuation facility may not be used depending on the nature of the disaster).

  In the vehicle Z, when the disaster occurrence position information is received, since the disaster occurrence position is behind the own vehicle from the content (step S22: No in FIG. 7), the vehicle Z travels as it is on the display 10 as shown in FIG. (Escape from the end exit of the section) is displayed (evacuation guidance information) (step S23 in FIG. 7). A voice message may be sent from the speaker 15. The date information acquired from the clock IC 88 may be included in the evacuation guidance information. And this evacuation guidance information is transmitted to the output destination registered beforehand (step S8 of FIG. 2).

  Also in the case of the vehicle Y, since the disaster occurrence position is behind the host vehicle, the display unit 10 displays that the vehicle is traveling as it is as shown in FIG. When the position of the vehicle Y is at the entrance of the tunnel 110, the disaster occurrence position is in front of the own vehicle (step S22 in FIG. 7: Yes), but the disaster occurrence position is the oncoming lane (step S24 in FIG. 7). : Yes), the fact that the vehicle is traveling as it is is displayed.

  Upon receiving the disaster occurrence position information, the vehicle X and the vehicle α search for an evacuation guide route from the contents and evacuation facility information (step S25 in FIG. 7). FIG. 16 shows an example in which decision priority is obtained by sorting the evacuation facilities according to the evacuation distance from the vehicle X. Here, the reason why the evacuation port C (evacuation distance 200 m) is lower than the evacuation port B (400 m) is because the evacuation port C is in the oncoming lane and the range of the disaster does not reach the oncoming lane. In this way, for evacuation facilities that need to cross the opposite lane to reach it, sort the factor such as the time required to cross the opposite lane into a distance after adding it to the actual distance Alternatively, it may be excluded from sorting.

  FIG. 17 shows an example in which the determination priority is obtained by sorting the evacuation facilities in consideration of the degree of congestion in the vehicle X. In the example of FIG. 17, the evacuation port A closest to the vehicle X is congested, and the degree of congestion exceeds a preset threshold (for example, the estimated evacuation completion time when the evacuation port A is selected is the evacuation port B). Therefore, the priority for determining the exit B is the highest. The evacuation facility with the highest decision priority is the recommended evacuation facility.

  18 and 19 show display examples of evacuation guidance information for the vehicle X. FIG. The example of FIG. 18 is based on the decision priority of FIG. 16, and the example of FIG. 19 is based on the decision priority of FIG. When these displays are performed, the evacuation guidance information for the vehicle X is also transmitted to other vehicles (for example, the vehicles Z and α). Further, as shown in FIGS. 18 and 19, the evacuation guidance route searched above may be displayed together (the same applies to FIGS. 5 and 15).

  In the case of the vehicle α, the entrance of the tunnel 110 may be included in the evacuation facility. When the evacuation port B is congested or the distance between the evacuation port B and the disaster occurrence position is small, the tunnel entrance behind the vehicle α Is determined as a recommended evacuation facility, and evacuation guidance information is created and output so as to evacuate to the tunnel entrance behind the vehicle α.

  FIG. 20 shows an example of the output destination of the evacuation guidance information stored in the database 21d. The ID of each output destination is a device ID or a telephone number. The output destination of the evacuation guidance information can be updated by a user's predetermined operation using the operation switch group 7, the remote control terminal 12, the touch panel 22, and the microphone 31. Output destinations include the printer 19, the mobile phone 18 carried by the passenger, the vehicle evacuation guidance system (vehicle-mounted navigation device) for other vehicles (Z, α), and the like. It may be possible to set whether to transmit evacuation guidance route data together with evacuation guidance information for each output destination.

  The evacuation guidance information determined by the in-vehicle navigation device 100 as shown in FIGS. 18 and 19 is output to the printer 19. At this time, a message “Please do not forget this paper when evacuating” may be added. Moreover, you may output the evacuation guidance information received from the other vehicle.

  The evacuation guidance information determined by the vehicle-mounted navigation device 100 as shown in FIGS. 18 and 19 is output to the mobile phone 18 and the contents thereof are displayed. The evacuation guidance information may be transmitted from the in-vehicle navigation device 100 in, for example, an e-mail format. In this case, the data of the evacuation guide route may be transmitted as an attached file. Communication between the in-vehicle navigation device 100 and the mobile phone 18 is normally performed via a relay station (base station). However, since the blocked section includes a tunnel where radio waves are difficult to reach, the communication is directly performed without using the relay station. It is good also as a structure which communicates.

  In addition, evacuation guidance information received from other vehicles is also output to the mobile phone 18, the printer 19, or the display 10. 21 and 22 show examples of display. FIG. 21 is a display example when vehicle Z or vehicle α receives evacuation guidance information from vehicle X. FIG. 22 is a display example when the vehicle X receives evacuation guidance information created by each vehicle from another vehicle (vehicle Z, vehicle α).

  When the content of the disaster occurrence location information is updated, the range of the disaster occurrence location expands, or the congestion level of the evacuation facility changes, the recommended evacuation facility is selected according to the content of the disaster occurrence location information in the above processing each time. Since it is determined and output, the occupant can always obtain the latest evacuation guidance information even after getting off and can evacuate quickly to a safe evacuation facility.

  Although the embodiments of the present invention have been described above, these are merely examples, and the present invention is not limited to these embodiments, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

The block diagram which shows the structure of a vehicle-mounted navigation apparatus. The flowchart explaining an evacuation guidance process. The figure which shows the concept of an evacuation guidance process. The figure which shows the example of the memory content of wide area evacuation equipment information. The figure which shows the example of the display screen at the time of guide | inducing to a wide area refuge equipment. The figure which shows the example of the memory content of refuge equipment information. The flowchart explaining evacuation guidance information creation processing. The flowchart explaining an evacuation guidance route search process. The flowchart explaining evacuation guidance information output processing. The flowchart explaining evacuation guidance information reception processing. The schematic diagram for demonstrating the evacuation guidance which mentioned the tunnel as an example. The figure which shows the example of the memory content of evacuation equipment. The figure which shows the detail of the positional relationship of each evacuation equipment in a tunnel. The figure which shows the example of disaster occurrence position information. The figure which shows the example of a display screen of evacuation guidance information at the time of drive | working as it is. The figure which shows the example which sorted the evacuation equipment by the evacuation distance, and calculated | required the determination priority. The figure which shows the example which calculated | required the determination priority by sorting evacuation equipment in consideration of the congestion degree. The figure which shows the example of a display of evacuation guidance information. The figure which shows another example of a display of evacuation guidance information. The figure which shows the example of the memory content of the output destination of evacuation guidance information. The figure which shows the example of the evacuation guidance information transmitted to the other vehicle. The figure which shows another example of the evacuation guidance information transmitted to the other vehicle.

Explanation of symbols

1 Position detector (vehicle position detection means, travel direction detection means)
7 Operation switch group 8 Control circuit (evacuation guidance information creation means, recommended evacuation facility determination means, evacuation guidance route information creation means, evacuation distance calculation means)
10 Display 12 Remote control terminal 13 Transceiver (Wide area disaster information acquisition means)
14 VICS Center 15 Speaker 18 Mobile Phone (Mobile Communication Terminal)
19 Printer (evacuation guidance information output means, printing means)
21 Hard disk drive (HDD)
21d database 21m map data (evacuation facility information storage means)
22 touch panel 25 communication unit (disaster location information acquisition means, congestion information acquisition means, evacuation guidance information output means, wireless transmission means)
31 Microphone 100 Car navigation system

Claims (16)

On the base road section, a blockage section that does not have a vehicle escape branch road in the middle is defined by cutting out a part of it, and it is possible for people to escape from the blockage section provided in the blockage section An evacuation facility information storage means for storing evacuation facility information including position information on at least the closed section of an evacuation facility in which the vehicle cannot escape,
Disaster occurrence position information acquisition means for acquiring disaster occurrence position information that occurred in the blocked section from the outside,
Own vehicle position detecting means for detecting the own vehicle position in the closed section;
Based on the evacuation facility information, the disaster occurrence position information, and the vehicle position information stored in the evacuation facility information storage means, the evacuation guidance information for evacuating the passenger of the own vehicle from the blocked section Evacuation guidance information creating means for creating
Evacuation guidance information output means for outputting the created evacuation guidance information;
A vehicle evacuation guidance system characterized by comprising: The evacuation guidance information creating means includes information on recommended evacuation facilities that should be recommended to occupants of the own vehicle among evacuation facilities stored in the evacuation facility information storage means, the disaster occurrence position information and the own vehicle position. Including the recommended evacuation facility determination means to be determined based on the information of
The vehicle evacuation guidance system according to claim 1, wherein the evacuation guidance information output unit outputs information of the recommended evacuation facility as the evacuation guidance information. A traveling direction detection means for detecting a traveling direction of the vehicle in the closed section;
3. The vehicle evacuation guidance system according to claim 1, wherein the evacuation guidance information creating unit creates the evacuation guidance information based on the disaster occurrence position, the host vehicle position, and a traveling direction of the host vehicle.   The evacuation guidance information creating means continues traveling in the traveling direction by the own vehicle on the condition that the disaster occurrence position is behind the own vehicle in the traveling direction of the own vehicle, and The evacuation guidance system for vehicles according to claim 3 which creates evacuation guidance information to escape from an exit. Comprising the requirements of claim 2;
The vehicle evacuation guidance according to claim 3, wherein the recommended evacuation facility determination means determines, as the recommended evacuation facility, an evacuation facility that can be reached from the own vehicle position without passing through the disaster occurrence position on the blocked section. system.   The recommended evacuation facility determination means determines, as the recommended evacuation facility, an evacuation facility existing behind the host vehicle when the disaster occurrence position is ahead of the host vehicle in the traveling direction of the host vehicle. The vehicle evacuation guidance system according to claim 5, wherein, similarly, when the disaster occurrence position is behind the host vehicle, an evacuation facility existing ahead of the host vehicle is determined as the recommended evacuation facility.   The vehicle evacuation guidance system according to any one of claims 2 to 6, wherein the recommended evacuation facility determination unit sets a higher priority for determination as the recommended evacuation facility for an evacuation facility closer to the own vehicle position. Comprising the requirements of claim 5;
The recommended evacuation facility determination means is an evacuation facility that can be reached from the own vehicle position without passing through the disaster occurrence position on the closed section, and the evacuation facility closer to the own vehicle position is the recommended evacuation facility. The vehicle evacuation guidance system according to claim 7, wherein the determination priority is set high. Having congestion information acquisition means for acquiring congestion degree information of each evacuation facility,
The vehicle evacuation guidance system according to any one of claims 2 to 8, wherein the recommended evacuation facility determination unit sets a higher priority for determination as the recommended evacuation facility for an evacuation facility having a lower degree of congestion. The evacuation guidance information creation means creates evacuation guidance route information creation means for creating information on an evacuation guidance route from the own vehicle position to the recommended evacuation equipment based on the own vehicle position and the position information of the recommended evacuation equipment. With
The vehicle evacuation guidance system according to any one of claims 2 to 9, wherein the evacuation guidance information output means outputs information on the created evacuation guidance route as the evacuation guidance information.   Evacuation distance calculating means for calculating an evacuation distance from the own vehicle position to the recommended evacuation equipment based on the position information of the recommended evacuation equipment, the evacuation guidance information output means, The vehicle evacuation guidance system according to any one of claims 2 to 10, wherein the evacuation guidance information is output by being included in the evacuation guidance information. In the base road section, comprising a wide area disaster information acquisition means for acquiring the disaster occurrence position information of the wide area including the own vehicle position and the blocked section existing in front of the vehicle position,
The evacuation guidance information creating means, when the acquired disaster position exists in a closed section in front of the own vehicle position and there is no wide area evacuation facility between the own vehicle position and the closed section, The evacuation guidance system for vehicles according to any one of claims 2 to 11, which creates evacuation guidance information for evacuation equipment in a closed section.   The vehicle evacuation guidance system according to any one of claims 1 to 12, wherein the evacuation guidance information output means is a printing means for printing out the evacuation guidance information in the vehicle.   The vehicle evacuation guidance system according to any one of claims 1 to 13, wherein the evacuation guidance information output means is wireless transmission means for wirelessly transmitting the evacuation guidance information to the outside of the host vehicle.   The vehicle evacuation guidance system according to claim 14, wherein the wireless transmission unit wirelessly transmits the evacuation guidance information to a mobile communication terminal.   The vehicle evacuation guidance system according to claim 14 or 15, wherein the wireless transmission means wirelessly transmits the evacuation guidance information to another vehicle registered in advance.

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