JP2007193650A - Evacuation guidance system, onboard equipment, and roadside unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an evacuation guidance system for safely guiding and evacuating occupants when emergency occurs in a closed road, a tunnel, etc., and on-vehicle equipment and a roadside unit thereof. <P>SOLUTION: An evacuation guidance system is provided comprising; a roadside unit equipped with a transmission means to transmit information on a facility for emergency including location of the facility for emergency to a vehicle; on-vehicle equipment having a receiving means to receive facility information for emergency; a storage means for on-vehicle equipment to store received facility information for emergency; a position detection means to detect location of the vehicle; a search instruction means instructing to retrieve evacuation guidance information; a search means to search the facility for emergency from the facility information for emergency based on search instruction and the location of the vehicle; and a notification means to notify the location of searched facility for emergency. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an evacuation guidance system, an in-vehicle device, and a roadside device that provide information necessary for evacuating road users and ensuring safety.

  If a vehicle breaks down or becomes an emergency while driving on a toll road such as an expressway, the location of the emergency telephone is indicated by a signboard etc., and you must find and contact the emergency telephone Don't be. There is no other way to use emergency telephones than walking around paying attention to surrounding vehicles, and more attention is required especially at night and on highways.

  In recent years, toll roads such as highways have increased, and long-distance tunnels have also increased. When the road tunnel manager grasps the occurrence of a fire with a fire detector or emergency telephone, the information on the fire is confirmed using sensor information such as wind speed, smoke, temperature, and gas concentration, and video from a monitoring TV camera. Information on evacuation was provided to road users through boards, radio broadcasts, and tunnel loudspeakers. In other words, road users had to evacuate by relying on simple messages such as information displays, radio broadcasts and loudspeakers.

  For example, when evacuating due to a fire in a tunnel, you must evacuate by relying on a guide light that indicates the nearest emergency exit from the location of the vehicle, but you can check the location of the vehicle in the road tunnel using an in-vehicle navigation device. Even if it is possible, it is difficult to take appropriate evacuation action because it may be difficult to see the guide light due to smoke or the like, or it may be impossible to know the positional relationship with the fire or emergency exit.

  In view of this, an external information notification device for vehicles or a route guidance device for vehicles has been devised in which a vehicle occupant can take a method of avoiding traffic jams according to the situation by providing appropriate information on traffic jams and traffic regulation sections. (See Patent Document 1).

  Further, an in-tunnel evacuation guidance apparatus and an evacuation guidance system have been devised that can actively perform accurate evacuation guidance (see Patent Documents 2 and 3).

  In addition, a road tunnel fire information provision device that provides timely, accurate, and concise information necessary to ensure the speed and safety of road user evacuation and firefighting and emergency activities by emergency vehicles in the event of a road tunnel fire Has been devised (see Patent Document 4).

  In addition, when a railroad vehicle is traveling in a tunnel and a fire suddenly occurs in the tunnel, it is possible to provide accurate evacuation support for the safe evacuation guidance of passengers and suppression of fire spread. An evacuation support method and system for railway fire accidents have been devised (see Patent Document 5).

  In addition, an in-tunnel display device has been devised in which evacuation guidance is performed by optically switching the lightning type signs in an existing tunnel (see Patent Document 6).

Japanese Patent Application Laid-Open No. 07-085395 JP-A-10-179774 JP-A-10-188156 Japanese Patent Laid-Open No. 2002-288883 JP 2004-074858 A JP 2005-2111279 A

  The example of Patent Document 1 is intended to avoid traffic jams and traffic jams at the time of traffic regulation using an in-vehicle navigation device, and does not guide emergency exits and emergency telephone positions.

  The example of patent document 2 guides an emergency exit by assembling an evacuation guidance device to an emergency facility already installed in a tunnel. Moreover, the example of patent document 3 adds the function which instruct | indicates an evacuation direction with reference to the evacuation pattern corresponding to it, when a fire division is specified to the example of patent document 2. FIG. However, neither of these uses an in-vehicle navigation device.

  In the example of Patent Document 4, information transmitted from a broadband communication device installed in a tunnel is received by a user using a portable information device different from the in-vehicle navigation device, and his / her position and emergency exit This is a system that grasps and guides position information, and does not provide guidance using the vehicle position information of the in-vehicle navigation device. Moreover, the system is only in the tunnel, and is not configured to be used on the road outside the tunnel. In addition, even when the configuration is combined with the example of Patent Document 1, evacuation is guided using a broadband communication device installed in the tunnel, so on a road other than the tunnel such as a toll road Evacuation guidance is not possible.

  The example of patent document 5 is applied to a railway, and is not a system using a vehicle-mounted navigation device. In addition, this system uses the evacuation support model pattern to guide train passengers for evacuation support processing and is not intended for use in vehicles. It is limited and there is no evacuation guidance function on the road.

  In the example of Patent Document 6, when a disaster occurs in a tunnel, an evacuation guide is used by using a light-emitting sign in the tunnel. It is not a guide. In addition, even when the configuration is combined with Patent Documents 2 and 3, the location information cannot be obtained immediately in the vehicle, and the location information of the emergency exit cannot be obtained. If you want to know, the evacuees must find signs and guidance devices installed in the tunnel.

  Against the background of the above problems, an object of the present invention is to provide an evacuation guidance system, an in-vehicle device, and a roadside for the purpose of safely guiding and evacuating an occupant when an emergency occurs on a closed road or tunnel. Is to provide a machine.

Means for Solving the Problems and Effects of the Invention

  An evacuation guidance system for solving the above problems is an evacuation guidance system including a roadside machine installed along a road and an in-vehicle device mounted on a vehicle, and the roadside machine includes an emergency facility location. The vehicle equipment includes a receiving means for receiving emergency equipment information, a vehicle equipment storage means for storing the received emergency equipment information, and a position of the vehicle. Position detection means, search instruction means for instructing search for evacuation guidance information, search means for searching for emergency equipment from emergency equipment information based on the search instruction and the position of the vehicle, and the position of the searched emergency equipment And informing means for informing as evacuation guidance information.

  With the above configuration, the vehicle occupant can receive emergency facility information installed along the road. Further, since the emergency facility information is received only for the road on which the vehicle is traveling, there is also an advantage that the storage capacity of the storage unit for in-vehicle equipment can be small. Furthermore, in the above configuration, the emergency equipment information on the road being traveled can be received in real time, and the emergency equipment information on the road can be received even if the travel route is changed from the previous schedule. There is no need to search for emergency equipment information on other roads, and even if you encounter a situation where you have to evacuate terribly in a land that is unguided by geography, you can evacuate calmly. In addition, since the position of the emergency facility from the current position of the vehicle is notified, it is possible to reach the emergency facility even if the surroundings are poor due to smoke or the like.

  Further, the roadside machine in the evacuation guidance system of the present invention includes roadside machine storage means for storing emergency equipment information about emergency equipment installed between other roadside machines adjacent along the road. It can also be configured.

  To store all emergency facility information installed on the road uniformly by the roadside machine installed on the road simply increases the storage capacity of the storage means for the roadside machine. Moreover, even if the emergency facility information of the section that has already passed is received, no merit is produced for the vehicle occupant. What the vehicle occupant needs is emergency equipment information about emergency equipment ahead of the roadside machine. With the above-described configuration, it is only necessary to store the minimum necessary emergency facility information data. Therefore, there is an advantage that the storage capacity of the storage unit for the roadside machine is small. Moreover, it becomes possible to reduce the data amount of the emergency equipment information transmitted from the roadside machine to the vehicle, and it will leave the communicable range with the roadside machine before receiving the emergency equipment information from the roadside machine. The situation does not occur. Furthermore, the vehicle occupant can receive necessary and minimum emergency equipment information in real time.

  Further, the in-vehicle device in the evacuation guidance system of the present invention includes traveling direction detection means for detecting the traveling direction of the vehicle, and the retrieval means is configured to retrieve emergency equipment closest to the vehicle in the traveling direction of the vehicle. You can also.

  For example, if you have to stop on the road and get out of the car, check the situation ahead and pay attention to the following vehicle or oncoming vehicle to the emergency facility, the direction toward the direction of travel of the vehicle Sometimes it is good. With the above configuration, the vehicle occupant can go to emergency facilities in a safe direction.

  Further, the in-vehicle device in the evacuation guidance system of the present invention is provided with a traveling direction detection means for detecting the traveling direction of the vehicle, and the retrieval means retrieves emergency equipment closest to the vehicle in a direction opposite to the traveling direction of the vehicle. It can also be configured.

  For example, if you have to stop on the road and go out of the car, and if you can not secure the front view with smoke etc., it is better to go in the direction opposite to the traveling direction of the vehicle so that it will not be caught in smoke Good. With the above configuration, the vehicle occupant can head for emergency facilities in a safe direction. In addition, if the emergency equipment in the traveling direction of the vehicle and the emergency equipment in the opposite direction to the traveling direction are notified, the vehicle occupant may head to the emergency equipment in a safer direction depending on the situation at the site. It becomes possible.

  Moreover, the emergency equipment in the evacuation guidance system of the present invention can be configured to be an emergency call device and / or an emergency exit.

  According to the above configuration, it is possible to evacuate in an appropriate direction based on the received emergency facility information and the current position of the vehicle, and it is possible to evacuate to a safer place by making a report or using an emergency exit.

  In addition, an in-vehicle device for solving the above problems includes a receiving unit that receives emergency facility information, an in-vehicle device storage unit that stores the received emergency facility information, and a position detection unit that detects the position of the vehicle. Search instruction means for instructing search of evacuation guidance information, search means for searching for emergency equipment from emergency equipment information based on the search instruction and the position of the vehicle, and evacuation guidance information indicating the position of the searched emergency equipment And a notifying means for notifying as described above.

  The above configuration makes it possible to receive real-time emergency equipment information on a road that is running, and even if the travel route is changed from a previous schedule, the emergency equipment information on that road can be received. There is no need to search for emergency equipment information in Japan, and even if you encounter a situation where you have to evacuate terribly in a land that is unguided by geography, you can evacuate calmly. In addition, since the position of the emergency facility from the current position of the vehicle is notified, it is possible to reach the emergency facility even if the surroundings are poor due to smoke or the like.

  Further, the in-vehicle device of the present invention can include a traveling direction detection unit that detects a traveling direction of the vehicle, and the retrieval unit can be configured to retrieve an emergency facility that is in the traveling direction of the vehicle and is closest to the vehicle. .

  For example, if you have to stop on the road and get out of the car, check the situation ahead and pay attention to the following vehicle or oncoming vehicle to the emergency facility, the direction toward the direction of travel of the vehicle Sometimes it is good. With the above configuration, the vehicle occupant can go to emergency facilities in a safe direction.

  Further, the in-vehicle device of the present invention includes a traveling direction detection unit that detects a traveling direction of the vehicle, and the retrieval unit is configured to retrieve an emergency facility closest to the vehicle in a direction opposite to the traveling direction of the vehicle. You can also.

  For example, if you have to stop on the road and go out of the car, and if you can not secure the front view with smoke etc., it is better to go in the direction opposite to the traveling direction of the vehicle so that it will not be caught in smoke Good. With the above configuration, the vehicle occupant can head for emergency facilities in a safe direction. Also, if the emergency equipment in the direction of travel of the vehicle and the emergency equipment in the direction opposite to the travel direction are notified, the vehicle occupant can go to the emergency equipment in a safer direction depending on the situation at the site. It becomes.

  Moreover, the emergency equipment in the vehicle-mounted device of the present invention can be configured to be an emergency call device and / or an emergency exit.

  According to the above configuration, it is possible to evacuate in an appropriate direction based on the received emergency facility information and the current position of the vehicle, and it is possible to evacuate to a safer place by making a report or using an emergency exit.

  Moreover, the roadside machine for solving the said subject is comprised along the road, and is equipped with the transmission means which transmits emergency equipment information including the position of emergency equipment, It is comprised.

  With the above configuration, emergency facility information installed along the road can be transmitted to the vehicle traveling on the road in real time.

  Further, the roadside machine of the present invention is configured to include roadside machine storage means for storing emergency equipment information about emergency equipment installed between other roadside machines adjacent along the road. You can also.

  To store all emergency facility information installed on the road uniformly by the roadside machine installed on the road simply increases the storage capacity of the storage means for the roadside machine. Moreover, even if the emergency facility information of the section that has already passed is received, no merit is produced for the vehicle occupant. The side that receives the emergency facility information needs emergency facility information related to the emergency facility ahead of the roadside machine. With the above-described configuration, it is only necessary to store the minimum necessary emergency facility information data. Therefore, there is an advantage that the storage capacity of the storage unit for the roadside machine is small. In addition, it is possible to reduce the amount of data of emergency equipment information transmitted from the roadside machine, and before the transmission of emergency equipment information from the roadside machine is completed, the receiving object such as a vehicle can communicate with the roadside machine. You can avoid the situation of leaving.

  Moreover, the emergency equipment in the roadside machine of this invention can also be comprised so that it may be an emergency call apparatus and / or an emergency exit.

  With the above configuration, even if the side receiving emergency equipment information encounters a situation where it is necessary to evacuate from the road, the emergency equipment information is sent to the emergency equipment based on the emergency equipment information without confusion. Or evacuate to a safer place using emergency exits.

  In case of an emergency on a closed road or tunnel, an emergency evacuation system, in-vehicle equipment, and roadside equipment for the purpose of safely guiding and evacuating passengers, including the location of emergency equipment This is realized by a configuration in which emergency equipment is searched using roadside equipment that transmits equipment information to the vehicle and emergency equipment information received from the roadside equipment, and the location of the searched emergency equipment is notified.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of the evacuation guidance system of the present invention. As shown in FIG. 1, the evacuation guidance system includes an in-vehicle navigation device (see FIG. 2, hereinafter abbreviated as a navigation device) 100 mounted on a vehicle 110 and a roadside machine (101 etc.) (management center). 108 will be described later). In addition, emergency call devices such as emergency telephones 106 and 107 are installed on the road. The navigation device 100 corresponds to the in-vehicle device of the present invention, but the in-vehicle device may be configured as a device independent of the navigation device 100.

  As shown in FIG. 2, 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 voice guidance, and a speaker 15. , A non-volatile memory 9, 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 to these, a remote control terminal 12, and the like. ing.

  The position detector 1 detects the position of the vehicle 110 based on a known geomagnetic sensor 2, a gyroscope 3 that detects the rotational angular velocity of the vehicle 110, a distance sensor 4 that detects the travel distance of the vehicle 110, and a radio wave from a satellite. A GPS receiver 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 position detection means of the present invention. The gyroscope 3 corresponds to the traveling direction detection 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 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.

  In addition, various instructions may be input 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 by the operation switch group 7, the remote control terminal 12, the touch panel 22, and the microphone 31.

  The emergency button 28 is described as independent from the navigation device 100 for convenience of explanation, but is included in the operation switch group 7 or the touch panel 22. In addition, when “emergency” or “evacuation” is uttered to the microphone 31, an operation command equivalent to pressing the emergency button 28 may be converted. Further, the emergency button 28 may be installed at a position where an occupant other than the driver can easily press down, such as a center panel. The emergency button 28 corresponds to the search instruction means of the present invention.

  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 FM multiplex broadcasting.

  In addition, by communicating with an ETC (Electronic Toll Collection) vehicle-mounted device 16, the fee information received by the ETC vehicle-mounted device 16 from an ETC road device (not shown) can be taken into the navigation device 100. . Further, the ETC vehicle-mounted device 16 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 includes 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, and a bus line 85 for connecting these configurations. 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. Further, the ROM 82 may store a program for performing a minimum necessary operation among the navigation functions when the HDD 21 fails. The control circuit 8 corresponds to search 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.

  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 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.

  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. The user data 21 u can be rewritten by operating the operation switch group 7, the touch panel 22 and the remote control terminal 12, or by inputting voice from the microphone 31. Further, data and various information necessary for the operation of the navigation device 100 may be stored as the database 21d. The HDD 21 corresponds to the in-vehicle device storage means of the present invention.

  The navigation program 21p, map data 21m, user data 21u, and database 21d can be added / 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 non-volatile memory 9 is constituted by a rewritable semiconductor memory such as an EEPROM (Electrically Erasable & Programmable Read Only Memory) or a flash memory, and information and data necessary for the operation of the navigation device 100. Is remembered. Note that the nonvolatile memory 9 is configured to retain the stored contents even when the accessory switch of the vehicle 110 is in an off state, that is, the navigation device 100 is in an off state. Further, information and data necessary for the operation of the navigation device 100 may be stored in the HDD 21 instead of the nonvolatile memory 9. Furthermore, information and data necessary for the operation of the navigation device 100 may be stored separately in the nonvolatile 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 display device 10 corresponds to the notification means of the present invention.

  The speaker 15 is connected to a known voice synthesis circuit 24, and the digital voice data stored in the nonvolatile 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. The voice synthesis method includes 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 for synthesizing speech corresponding to input or stored character information. There is.

  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 110 to calculate an estimated arrival time from the current position of the vehicle 110 to a predetermined place, or to calculate an average vehicle speed for each travel section of the vehicle 110. To do.

  The communication unit 25 includes a transmission unit, a reception unit, and an antenna for transmitting and receiving data to and from the roadside device 101 and the like. Since the transmission unit, the reception unit, and the antenna have the same configuration as that of a known wireless communication device, detailed description thereof is omitted. The communication unit 25 corresponds to the receiving means of the present invention.

  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 16 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 the route guidance processing for displaying the destination route on the display 10 is selected from the menu displayed on the display 10 by the input, the following processing is performed.

  That is, when the user selects a point from a given point or facility search or address search on the map, a registered point set by the user, etc. and sets it as a destination, the position detector 1 determines the current position of the vehicle 110, A process for obtaining an optimum guide route from the current position to the destination 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 roadside device 101 (the same applies to other roadside devices 102 and the like) includes a control device 120 as shown in FIG. The control device 120 includes a transmission unit 121, a reception unit 122, an antenna 123, a storage unit 124, a control unit 125, an external device connection unit 126, and the like. The transmission unit 121 is for transmitting emergency equipment information to the navigation device 100, and the reception unit 122 is for receiving data from the management center 108 (details will be described later). Since the transmission unit 121, the reception unit 122, and the antenna 123 have the same configuration as a well-known wireless communication device, detailed description thereof is omitted. The transmission unit 121 corresponds to the transmission unit of the present invention.

  As shown in FIG. 4, the storage unit 124 stores emergency facility information including the name and installation position of an emergency facility installed between adjacent roadside units. Emergency facilities include emergency telephones and emergency exits. In addition to these, a fire hydrant, a guide light, a fire alarm, an emergency parking zone, etc. (see FIG. 7) may be included in the emergency equipment. For example, in the case of the roadside device 101 in FIG. 1, information about the emergency phone 106 between the roadside device 102 is stored, and in the case of the roadside device 102, the information about the emergency phone 106 between the roadside device 101 is stored. Information and information about the emergency telephone 107 between the roadside machine 103 are stored. In addition, the memory | storage part 124 is corresponded to the memory | storage means for roadside machines of this invention.

  The control unit 125 includes a well-known CPU 125a, ROM 125b, RAM 125c, an input / output circuit (not shown), a bus line, and the like, and the CPU 125a executes the control program (not shown) stored in the ROM 125b to operate the entire control device 120. Take control.

  The external device connection unit 126 is an interface circuit using a USB (Universal Serial Bus) for connecting an information terminal such as a personal computer. The emergency facility information stored in the storage unit 124 can be updated or read out via the external device connection unit 126. In addition, the emergency facility information may be updated or read by an operation unit including a key or a switch (not shown).

  The emergency facility information reception process in the navigation device 100 will be described with reference to FIGS. 1 and 5. This process is included in the navigation program 21p and executed together with other processes of the navigation program 21p. First, in FIG. 1, emergency equipment information is received from the roadside machine 101 while the vehicle 110 is traveling at a point A where the radio wave from the roadside machine 101 can be received (S1). The received emergency equipment information is stored in the database 21d of the HDD 21 or a predetermined area of the nonvolatile memory 9 (S2). The stored contents are the same as in FIG. Similarly, while the vehicle 110 is traveling in the point B where the radio wave from the roadside machine 102 can be received, the emergency equipment information is received from the roadside machine 102 and the emergency equipment information is stored.

  When the emergency equipment information is received from the roadside machine 102, the emergency equipment information received from the roadside machine 101 becomes unnecessary and may be deleted. By doing so, the storage capacity of emergency facility information in the navigation device 100 can be reduced.

  The evacuation guidance process in the navigation device 100 will be described with reference to FIGS. This process is included in the navigation program 21p and executed together with other processes of the navigation program 21p. First, in FIG. 6, when the vehicle 110 approaches the point C near the entrance of the tunnel 115, as described above, emergency equipment information is received from the roadside unit 104 installed near the entrance of the tunnel 115. The emergency equipment information (that is, emergency equipment information in the tunnel 115) is stored. Then, when the vehicle passes through the tunnel 115 and reaches the point D near the exit, the emergency equipment information from the roadside machine 105 is received and stored.

  For example, as shown in FIG. 7, the passenger car 112 collides with the truck 111 in the opposite lane of the lane in which the vehicle 110 is traveling in the tunnel 115, and the truck 111 travels in the opposite lane (that is, the lane in which the vehicle 110 is traveling). When the vehicle 110 encounters an accident in which the vehicle 112 is closed and the passenger car 112 is in flames, the vehicle 110 stops in front of the accident site, and the road user P who is a driver first presses the emergency button 28.

  When the emergency button 28 is pressed, the current position of the vehicle 110 is detected by the position detector 1. In addition to the GPS receiver 5, the position detector 1 detects the vehicle 110 from the traveling direction of the vehicle 110 (forward, backward, bent direction, etc.) detected by the gyroscope 3 and vehicle speed information detected by the vehicle speed sensor 23. Since the so-called self-contained navigation unit for detecting the current position of the vehicle is included, it is possible to detect the current position even in the tunnel 115 where it is difficult to receive GPS signals.

  Further, the history of the current position of the vehicle 110 may be stored in the HDD 21 or the like, and the traveling direction of the vehicle 110 may be detected from the history.

  When the current position of the vehicle 110 is detected, emergency facility information stored in a predetermined area of the database 21d or the nonvolatile memory 9 is stored in a predetermined area such as a work area (not shown) of the RAM 83, as shown in the flowchart of FIG. (S11), based on the current position of the vehicle 110 and the traveling direction, emergency facilities such as emergency telephones and emergency exits that are the closest in the traveling direction, and emergency facilities that are the closest in the direction opposite to the traveling direction Search is performed (S12).

  The user may be able to set whether to search for emergency equipment in the direction of travel and the direction opposite to the travel direction. As a setting method, a menu screen (not shown) relating to an emergency equipment search from a menu (not shown) displayed on the display 10 by operating the operation switch group 7, the touch panel 22, the remote control terminal 12, or by voice input from the microphone 31. , And select and set the direction (travel direction only, travel direction and reverse direction, both travel direction and travel direction and reverse direction) as the emergency facility search content. The setting contents are stored in the HDD 21 or the nonvolatile memory 9.

  Then, the retrieved result is displayed on the screen of the display 10 (S13). FIG. 9 shows an example of display. In the example of FIG. 7, the emergency facility searches for the guide light 134, the emergency exit 135, and the emergency telephone 136 for the traveling direction of the vehicle 110 (indicated as “forward” in FIG. 9) and reverses the traveling direction of the vehicle 110 (FIG. In FIG. 9, the guide light 134, the emergency exit 133, and the emergency telephone 132 are searched for. In this way, a predetermined number of emergency facilities from the nearest to about three locations may be searched and displayed. Further, the nearest one may be searched and displayed for each type of emergency equipment. Alternatively, the voice synthesis circuit 24 may create a voice message based on the retrieved result and send the voice message from the speaker 15.

  The emergency facility may include an emergency parking zone 142, a fire hydrant (131, etc.), a fire alarm (not shown), and the like.

  Alternatively, a management center 108 (see FIG. 1) may be provided to centrally manage emergency equipment information and distribute it to the roadside device 101 or the like. Further, the management center 108 may be configured as a part of the function of the VICS center 14 without being configured as a single component.

  As shown in FIG. 10, a server 109 is installed in the management center 108. The server 109 includes a CPU 51, a ROM 52, a RAM 53, and an I / O 54 that is an input / output interface. The server 109 includes a computer main body 50 connected to be able to transmit and receive via a bus line 55, and a keyboard 56 or a mouse as a peripheral device. An input device such as 57, a recording medium reading device such as a CD-ROM drive 58 or FDD 59, a HDD (hard disk drive) 60, a monitor 62 connected via a monitor control unit 61, a printer 63, and the Internet, a public line, etc. The whole is constructed as a computer system to which a network control unit 64 and the like for performing communication with a transmission / reception device 66 connected to an external network is connected.

  The HDD 60 stores an operating system program (hereinafter referred to as OS) 60a and a server program 60b. The server program 60b operates in such a manner that the server work memory 53b secured in the RAM 53 on the OS 60a is used as a work area in order to realize the function as the server 109. This is stored in, for example, a CD-ROM 65 in a computer-readable state and installed in a predetermined storage area on the HDD 60. A configuration in which the server program 60b or data is downloaded from an external network may be used. The RAM 53 is also formed with a work memory 53a for the OS 60a.

  The HDD 60 has a database 60c. In the database 60c, for example, emergency facility information as shown in FIG. 11 is stored for each roadside device. For example, the stored contents of the roadside machine 104 are between emergency equipment information (not shown) between the roadside machine 105 (not shown) adjacent to the opposite side of the roadside machine 105 (for example, 103) and the roadside machine 105. Emergency facility information in the tunnel 115 is stored. Emergency equipment information in the tunnel 115 includes emergency telephones (132, 136, etc.), emergency exits (133, 135, etc.), fire hydrants (131, 137, etc.), and guide lights (134, etc.). Is also remembered. Note that the emergency equipment information is updated as needed by inputting from the keyboard 56 and mouse 57, reading data from an external storage medium using the CD-ROM drive 58 and FDD 59, downloading data from an external network, and the like.

  The emergency facility information is sent from the management center 108 to the roadside machine 101 and the like at a fixed period or at a predetermined timing such as when the emergency equipment information is updated, and stored in the storage unit 124 of the roadside machine 101 or the like. Further, the roadside device 101 or the like may perform only the relay operation in which the emergency facility information received by the reception unit 122 is transmitted as it is by the transmission unit 121 without storing the emergency facility information.

  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 an evacuation guidance system. The block diagram which shows the structure of a vehicle-mounted navigation apparatus. The block diagram which shows the structure of the control apparatus contained in a roadside machine. The figure which shows an example of the emergency equipment information memorize | stored in a roadside machine. The flowchart explaining emergency equipment information reception processing. The figure which shows the structure of the evacuation guidance system in the area including a tunnel. The figure which shows an example of the evacuation guidance in a tunnel. The flowchart explaining an evacuation guidance process. The figure which shows an example of the display screen at the time of evacuation route guidance. The block diagram which shows the structure of the server contained in a management center. The figure which shows an example of the emergency equipment information memorize | stored in a server.

Explanation of symbols

1 Position detector (position detection means, travel direction detection means)
7 Operation switch group 8 Control circuit (search means)
10 Display (notification means)
12 Remote control terminal 15 Speaker 21 Hard disk device (HDD, storage means for in-vehicle equipment)
22 Touch Panel 24 Speech Synthesis Circuit 25 Communication Unit (Reception Unit)
28 Emergency button (search instruction means)
31 Microphone 100 On-vehicle navigation system (on-vehicle equipment)
101-105 Roadside machine 106,107 Emergency call (emergency call device)
108 Management Center 109 Server 110 Vehicle 120 Control Equipment 121 Transmitter (Transmission Unit)
124 storage unit (storage means for roadside machine)
131, etc. Fire hydrant 132, etc. Emergency telephone (emergency equipment, emergency call device)
133 etc. Emergency exit (Emergency facilities)
134 and others

Claims (12)

An evacuation guidance system including a roadside machine installed along a road and an in-vehicle device mounted on a vehicle,
The roadside machine
Comprising transmission means for transmitting emergency equipment information including the location of emergency equipment to the vehicle;
The in-vehicle device is
Receiving means for receiving the emergency equipment information;
On-vehicle equipment storage means for storing the received emergency equipment information;
Position detecting means for detecting the position of the vehicle;
Search instruction means for instructing search for evacuation guidance information;
Search means for searching for the emergency equipment from the emergency equipment information based on the search instruction and the position of the vehicle;
Informing means for informing the location of the searched emergency facility as the evacuation guidance information;
An evacuation guidance system comprising:   The evacuation guide according to claim 1, wherein the roadside machine includes roadside machine storage means for storing emergency equipment information about the emergency equipment installed between the roadside machine and another roadside machine adjacent to the roadside machine. system. The in-vehicle device includes a traveling direction detection means for detecting the traveling direction of the vehicle,
The evacuation guidance system according to claim 1 or 2, wherein the search means searches for an emergency facility closest to the vehicle in a traveling direction of the vehicle. The in-vehicle device includes a traveling direction detection means for detecting the traveling direction of the vehicle,
The evacuation guidance system according to any one of claims 1 to 3, wherein the search means searches for the emergency facility closest to the vehicle in a direction opposite to the traveling direction of the vehicle.   The evacuation guidance system according to any one of claims 1 to 4, wherein the emergency facility is an emergency call device and / or an emergency exit. Receiving means for receiving emergency facility information;
On-vehicle equipment storage means for storing the received emergency equipment information;
Position detecting means for detecting the position of the vehicle;
Search instruction means for instructing search for evacuation guidance information;
Search means for searching for the emergency equipment from the emergency equipment information based on the search instruction and the position of the vehicle;
Informing means for informing the location of the searched emergency facility as the evacuation guidance information;
An in-vehicle device comprising: A traveling direction detecting means for detecting a traveling direction of the vehicle;
The in-vehicle device according to claim 6, wherein the search unit searches for an emergency facility closest to the vehicle in a traveling direction of the vehicle. A traveling direction detecting means for detecting a traveling direction of the vehicle;
The in-vehicle device according to claim 6 or 7, wherein the search means searches for the emergency facility closest to the vehicle in a direction opposite to the traveling direction of the vehicle.   The in-vehicle device according to any one of claims 6 to 8, wherein the emergency facility is an emergency call device and / or an emergency exit.   A roadside machine, comprising a transmission unit that is installed along a road and transmits emergency facility information including a position of an emergency facility.   The roadside machine of Claim 10 provided with the memory | storage means for roadside machines which memorize | stores the emergency equipment information about the said emergency equipment installed between the other roadside machines adjacent along the said road.   The roadside machine according to claim 10 or 11, wherein the emergency facility is an emergency call device and / or an emergency exit.

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