JP5119966B2 - Route guidance system, in-vehicle terminal, information server, route guidance method, program, and recording medium - Google Patents

Description

  The present invention relates to a route guidance system, an in-vehicle terminal, an information server, a route guidance method, a program, and a recording medium, and in particular, a route guidance system, an in-vehicle terminal, and an information for performing route search and guidance by effectively using actual travel route information. The present invention relates to a server, a route guidance method, a program, and a recording medium.

  In large buses and trucks, particularly large cargo vehicles traveling over long distances, there were roads that were impossible or difficult to travel due to restrictions such as the total vehicle length, height, width, weight, and minimum turning radius. However, in-vehicle terminals such as car navigation devices perform route search and route guidance without taking these restrictions into consideration, and in some cases, the vehicle cannot actually travel or is difficult to travel. In view of this, a car navigation device has been proposed that performs a route search or a warning during route guidance in consideration of map data provided in the server and constraints such as the total length, height, width, and turning radius of the host vehicle (Patent Literature). 1, 2, 3).

Further, a traffic history recording device that efficiently stores traffic history information of a vehicle or the like in a server connected to the in-vehicle device via a network has been proposed (see Patent Document 4).
JP-A-8-278157 Japanese Patent Laid-Open No. 2002-236027 JP 2004-093212 A JP 2003-346274 A

  However, the above techniques have the following problems. Judgment as to whether or not the vehicle can be used for route search is based only on pre-stored map data, so the determination as to whether or not the vehicle can actually run is not reliable and the vehicle can be driven. In some cases, however, running is not easy. In addition, there may be a problem such as being unable to cope with the case where the vehicle has been able to travel before but cannot travel due to changes in road conditions and surrounding conditions. Moreover, although invention of patent document 3 receives map data and road feature data from a server, since these communication volumes are large, when it communicated with the moving vehicle, it became a burden.

  Even the traffic history recording apparatus described in Patent Document 4 does not disclose an invention that solves the above-described problems. Even if the detailed information of the host vehicle and the driving record information are transmitted to the data center, it is not an effective data storage method for searching for a travelable route under the conditions specified by the driver from the in-vehicle terminal.

  In fact, the number of roads on which travelable road information such as map data can be acquired is small. In the technology as described above, there is no particular reference to a route guidance method in the case where there is a road that does not have travelable road information among roads searched from the departure point to the destination.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide a travelable route in consideration of vehicle constraints in route search and guidance.

  A first route guidance system according to the present invention is a route guidance system having a configuration in which an in-vehicle terminal having navigation means and an information server are connected via a network, wherein the in-vehicle terminal stores vehicle information. Input means for input, storage means for storing the input vehicle information, actual travel route storage means for storing a route traveled by the host vehicle, and communication means for performing information communication with the information server via the network The communication means transmits information on a route traveled by the host vehicle and vehicle information to the information server together with a travel time, and the information server is connected to at least one on-vehicle terminal and the network. Communication means for performing information communication, map data storage means for storing map data, travel route information, travel time, vehicle information transmitted from the in-vehicle terminal Based on the map data, road attribute storage means for storing vehicle information of vehicles that can travel on each road, vehicle information that can be turned left and right at each intersection, and the vehicle-mounted terminal has The navigation means inquires of the information server about road information on which the host vehicle can travel based on the vehicle information of the host vehicle, is extracted from the road attribute storage means of the information server, and is received in the received travelable road information. Based on this, route search and guidance are performed.

  A second route guidance system according to the present invention is a route guidance system having a configuration in which an in-vehicle terminal having navigation means and an information server are connected via a network, wherein the in-vehicle terminal stores vehicle information. Input means for input, storage means for storing the input vehicle information, actual travel route storage means for storing a route traveled by the host vehicle, and communication means for performing information communication with the information server via the network The communication means transmits information on a route traveled by the host vehicle and vehicle information to the information server together with a travel time, and the navigation means sends vehicle information to the information server when performing a route search. And a route search request, and the information server communicates with at least one or more in-vehicle terminals via the network, a communication means, and a map Map data storage means for storing data, and the vehicle information of vehicles that can travel on each road and each intersection based on the travel route information, travel time, and vehicle information transmitted from the in-vehicle terminal. Road attribute storage means for storing vehicle information or the like that can be turned left and right, the map data recording means, and the road attribute storage means in response to vehicle information and a route search request transmitted from the in-vehicle terminal. A route search means for searching for a travelable route, the communication means transmits the route information searched by the route search means to the in-vehicle terminal, and the navigation means in the in-vehicle terminal includes: Route guidance is performed based on route information transmitted from the information server.

  A first in-vehicle terminal according to the present invention includes an input means for inputting vehicle information, a storage means for storing the input vehicle information, an actual travel route storage means for storing a route traveled by the host vehicle, and a network. Communication means for communicating information with an external device via the communication means, the communication means transmits information on the route on which the host vehicle has traveled and vehicle information to the external device together with the travel time. Basically, the vehicle includes navigation means for searching and guiding a route on the basis of the road information on the road that can be acquired by inquiring an external device about road information on which the host vehicle can run.

  The first information server according to the present invention includes a communication means for performing information communication with at least one or more in-vehicle terminals via a network, a map data storage means for storing map data, and a travel route transmitted from the in-vehicle terminal. Road attribute storage means for storing vehicle information of vehicles that have been able to travel for each road, vehicle information that could be turned left and right at each intersection, and the like based on information, travel time, vehicle information, In response to the vehicle information and the route search request transmitted from the in-vehicle terminal, the map data recording means and the road attribute storage means are referred to, and route search means for searching for a travelable route, The communication means transmits the route information searched by the route search means to the in-vehicle terminal.

  A first route guidance method according to the present invention includes a step of inputting vehicle information, a step of storing input vehicle information, a step of storing a route traveled by the host vehicle, and a route of the route traveled by the host vehicle. A step of transmitting information and vehicle information to an external device together with a travel time, a step of querying the external device for road information on which the host vehicle can travel based on the vehicle information of the host vehicle, and a travel corresponding to the inquiry The method includes a step of acquiring possible road information, and a step of performing route search and guidance based on the travelable road information.

  A first route guidance program according to the present invention includes a process for inputting vehicle information, a process for storing input vehicle information, a process for storing a route traveled by the host vehicle, and a route for traveling by the host vehicle. Processing for transmitting information and vehicle information to the external device together with the travel time, processing for querying the external device for road information on which the host vehicle can travel based on the vehicle information of the host vehicle, and travel according to the inquiry It is characterized by causing a computer to execute processing for acquiring possible road information and processing for performing route search and guidance based on the travelable road information.

  The first recording medium according to the present invention is a computer-readable recording medium that records the processing of the first route guidance program of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, the path | route which can drive | work considering the restrictions of a vehicle can be provided in route search and guidance.

  Embodiments of the present invention will be described below in detail with reference to the drawings. The embodiments described below are preferred embodiments of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. As long as there is no description of the effect, it is not restricted to these aspects.

  The present invention relates to an in-vehicle terminal having a navigation function, an input means for inputting the total length, total height, full width, weight, minimum turning radius, etc. of the vehicle, a storage means for storing the input vehicle information, and the host vehicle has traveled The information server has a storage means for storing the route and a communication means such as wireless communication, and the information server receives the data from the plurality of in-vehicle terminals, a map data storage means, and a vehicle that has traveled for each road. Road attribute storage means for storing vehicle information is provided. The in-vehicle terminal according to the present invention transmits the route traveled by the host vehicle and the vehicle information to the information server, so that the information server was able to turn right and left at each intersection and vehicle information that could be traveled for each road. Vehicle information is stored. When a vehicle equipped with an in-vehicle terminal according to the present invention performs a route search, it receives road information on which the host vehicle can travel from the information server based on the vehicle information of the host vehicle, and searches the route based on this information. I do.

  Hereinafter, the configuration of the route guidance system according to the embodiment of the present invention will be described. FIG. 1 is an overall configuration diagram of a route guidance system according to the present embodiment. A plurality of in-vehicle terminals 100 and the information server 200 are connected via a network 300. The network 300 is a wired or wireless communication network such as the Internet or a public telephone line network.

  The in-vehicle terminal 100 is a device for inputting information on a destination, searching for an optimum route from the current position to the destination, and guiding it, like a car navigation device mounted on a vehicle. The in-vehicle terminal 100 includes an external output unit 110, a travelable road storage unit 120, a host vehicle travel route storage unit 130, an input unit 140, a vehicle information storage unit 150, a map data storage unit 160, and a navigation unit 170. And a communication unit 180.

  The external output unit 110 is a display of a car navigation device, for example, and transmits various information such as map information and route search results to the driver. Further, instead of an output unit such as a display, an output unit based on voice guidance or both of them may be used.

  The travelable road storage unit 120 stores the travelable road of the host vehicle, the travelable intersection, and the travel date / time received from the information server 200 in association with the road data stored in the map data storage unit 160.

  The host vehicle travel route storage unit 130 stores a route traveled by the host vehicle and stores a travel route when route guidance is not performed.

  The input unit 140 inputs various information to the in-vehicle terminal 100. For example, a touch panel of a car navigation device may be used. The information to be input includes vehicle information, total length, total height, total width, weight, minimum turning radius, and the like of the host vehicle, and can also be used for inputting a destination when performing route guidance.

  The vehicle information storage unit 150 stores information on the own vehicle. The information to be stored is the total length, total height, total width, weight, minimum turning radius, etc. of the vehicle.

  The map data storage unit 160 stores road map data for each region or nation.

  The navigation unit 170 performs route search and route guidance. In addition, the destination information input from the driver via the input unit 140, the vehicle information stored in the vehicle information storage unit 150, the map data stored in the map data storage unit 160, and a new reception from the information server Based on the information on the travelable road or the information on the travelable road that has been received and previously stored, the route search and the route guidance calculation process that the vehicle can travel are performed.

  The communication unit 180 transmits data from the in-vehicle terminal 100 to the information server 200 via the network 300, or receives data from the information server 200 to the in-vehicle terminal 100 via the network 300. Information to be transmitted includes vehicle information stored in the vehicle information storage unit 150, destination information input by the driver from the input unit 140, and information on a route search target area calculated by the navigation unit 170. Information to be received includes information on roads and intersections where the vehicle can travel.

  The information server 200 is a server device installed in, for example, a telematics center of an automobile company or a content provider that provides information to navigation. The information server 200 includes a communication unit 210, a map data storage unit 220, and a road attribute storage unit 230.

  The communication unit 210 receives data transmitted from the in-vehicle terminal 100 to the information server 200 via the network 300 or transmits data from the information server 200 to the in-vehicle terminal 100 via the network 300. Information received includes vehicle information stored in the vehicle information storage unit 150, destination information input by the driver from the input unit 140, and information on a route search target area calculated by the navigation unit 170. Information to be transmitted includes information on roads and intersections where the vehicle can travel.

  Similar to the map data storage unit 160 configured in the in-vehicle terminal 100, the map data storage unit 220 stores road map data for each region or nation.

  The road attribute storage unit 230 stores vehicle information, passage dates and the like transmitted from the plurality of in-vehicle terminals 100 in association with each road and intersection stored in the map data storage unit 220.

  Next, operation processing when performing route guidance according to the present embodiment will be described in detail. First, with reference to FIG.1, FIG.2, FIG.3, the operation | movement which transmits the driving route track record information of the vehicle by which the vehicle-mounted terminal 100 is mounted to the information server 200 is demonstrated. FIG. 2 is a flowchart showing an operation process when transmitting travel route result information from the in-vehicle terminal 100 according to the present embodiment. FIG. 3 is a diagram illustrating an example of data stored in the road attribute storage unit 230 included in the information server 200 according to the present embodiment.

  The driver inputs vehicle information of the host vehicle on which the in-vehicle terminal 100 is mounted from the input unit 140. The information to be input includes the total length, the total height, the total width, the weight, the minimum turning radius, and the like of the host vehicle. The vehicle information may be input only when the in-vehicle terminal 100 is mounted on the vehicle or when the in-vehicle terminal 100 is used for the first time (step A1 in FIG. 2).

  The input vehicle information is stored in the vehicle information storage unit 150 (step A2).

  When the host vehicle travels, the route traveled by the host vehicle is stored in the map data storage unit 160 based on the position information obtained by the vehicle position specifying means by the navigation unit 170 or the like, regardless of the presence or absence of route guidance. It is stored in the host vehicle travel route storage unit 130 in association with road or intersection information in the map data. For example, when the map data stored in the map data storage unit is a digital road map, the vehicle has passed the link number of the road link through which the vehicle has passed, the node number of the intersection, etc. The date and time are stored together with the time (step A3).

  The stored track record information of the host vehicle traveling route is transmitted from the communication unit 180 to the communication unit 210 of the information server 200 via the network 300. The transmission timing may be appropriately transmitted while the host vehicle is traveling, or may be transmitted collectively at an appropriate preset timing regardless of whether the vehicle is traveling or stopped (steps A4 and A5).

  The received data is stored in the road attribute storage unit 230 in association with the road or intersection information of the map data stored in the map data storage unit 220 (step A6). As the storage method, for example, when the map data stored in the map data storage unit 220 is a digital road map, there is a method of storing as shown in FIG.

  Referring to FIG. 3, for example, in the case of a road link, the restriction information stored in advance in the map data or the like as the basic attribute of the road is stored, for example, the width restriction, the height restriction, the weight restriction, etc. Furthermore, the length, the total height, the total width, the weight, the minimum turning radius, and the passage date / time of the host vehicle are stored as data transmitted from each vehicle on which the in-vehicle terminal 100 is mounted. In addition, since the date and time of passage is recorded in the data to be stored, if the amount of data to be stored increases too much, the valid period of each data is set in advance, and the data is deleted when the valid period has passed You may make it do.

  Further, for example, in the case of an intersection node, when the intersection is a crossroad, if there are four types of roads A, B, C, and D that can enter the intersection, A → B, A → C for each of the approach direction and the traveling direction. , A → D, B → A, B → C, B → D, C → B, C → A, C → D, D → B, D → C, D → A, etc. A method is also conceivable. Also in this case, the information to be stored is the same as in the case of the road link.

  Next, with reference to FIGS. 1, 3, and 4, an operation in which the in-vehicle terminal 100 performs route search and route guidance on which the vehicle can travel will be described. FIG. 4 is a diagram illustrating an operation process when performing route search and guidance according to the present embodiment.

  First, destination information is input from the input unit 140 (step A7).

  From the input destination information, the vehicle current position information acquired by the vehicle current position specifying means mounted on the navigation unit 170 and the like, and the map data stored in the map data storage unit 160, the navigation unit 170 The travel prediction area where the host vehicle is likely to travel is predicted to a certain extent (step A8).

  Next, information on the travel prediction area is transmitted by the communication unit 180. At that time, among the data stored in the road attribute storage unit 230 used in the route search, the expiration date of the data to be used, for example, 3 months or 6 It is possible to specify that data up to a month ago is used, and this validity period information can be transmitted at the same time. Since road conditions and surrounding conditions change, this is effective when, for example, it is desired to perform route search with confidence only the latest information. Further, which road attribute information should be considered when performing a route search, for example, using only the information on the total length of the vehicle, or considering information on the total length and turning radius of the vehicle. Specification is also possible (steps A9 and A10).

  Based on the received travel prediction area information, roads and intersections included in the area are extracted from the map data stored in the map data storage unit 220 and stored in the road attribute storage unit 230 in association with the extracted roads and intersections. The road attribute information is referred to (step A11).

  Based on the road attribute information to be considered and the effective period information specified from the in-vehicle terminal 100, the specified attribute information is data within the effective period, and the past driving conditions are the most severe (travelable road based on vehicle information) Extract the one with the largest constraints. The strictest performance condition is, for example, the total length of the actual vehicle that has traveled the longest full length if it is the full length, the actual turning radius that has traveled with the largest rotational radius if the minimum rotational radius, and the like.

  Road and intersection information is extracted that is data of an area that is expected to travel under the conditions specified from the in-vehicle terminal 100, and that satisfies all the valid period information and the constraint conditions of the road attribute information to be considered. The road and intersection information is, for example, the road link number and the intersection node number when the map data stored in the map data storage unit 220 is a digital road map (step A12).

  The communication unit 210 transmits the extracted road and intersection information to the communication unit 180 mounted on the in-vehicle terminal 100 via the network 300 (steps A13 and A14).

  The received information is stored in the travelable road storage unit 120 (step A15).

  The navigation unit 170 refers to the data stored in the travelable road storage unit 120 and the map data storage unit 160, and navigates from the roads and intersections on which the host vehicle stored in the travelable road storage unit 120 can travel. The travel route is searched by the route search function of a general car navigation device included in the unit 170, for example. The travelable road referred to at this time may refer only to data newly transmitted from the information server 200, may refer only to data received and stored in the past in advance, or both. It is also possible to use it for route search. Further, since roads and intersections stored in the driveable road storage unit 120 do not necessarily continue to the destination designated by the driver, for example, in a route search method in a general car navigation system It is also possible to reduce the travel cost to be calculated for roads and intersections stored in the travelable road storage unit 120 so that it is easy to select a road that can travel as much as possible by route search (step). A16).

  The navigation unit 170 performs route guidance according to the route searched above (step A17).

  According to the above embodiment, a large bus or truck, particularly a large freight vehicle traveling over a long distance, has roads that are impossible or difficult to travel due to restrictions such as the total vehicle length, overall height, overall width, weight, and minimum turning radius. By effectively using the past information on which the host vehicle or other vehicles have traveled in the past, it is possible to search for a route on which the host vehicle can travel or to travel and to perform route guidance.

  In addition, by using past travel date and time information effectively, route search corresponding to the latest road conditions, such as when it was possible to travel before, but it became impossible to travel due to changes in road conditions and surrounding conditions. Route guidance is possible.

  Next, another embodiment of the present invention will be described in detail with reference to the drawings. FIG. 5 is an overall configuration diagram of the route guidance system according to the present embodiment. The configuration of the present embodiment differs from the configuration of the above-described embodiment shown in FIG. 1 only in that the route search unit 640 is configured in the information server. Thereby, the route search can be performed by the information server, and only the searched route information can be transmitted to the in-vehicle terminal.

  The operation process for transmitting the travel record information of the host vehicle to the information server is the same as the operation process of the above-described embodiment described with reference to FIG.

  FIG. 6 is a flowchart showing operation processing according to the present embodiment. The operations up to inputting destination information from the in-vehicle terminal 500, transmitting data to the information server 600, and extracting roads and intersections that satisfy the specified conditions (steps B1 to B6 in FIG. 6) are described in the above embodiment. This is the same as steps A1 to A12 in FIG.

  Next, the route search unit 640 refers to the extracted road and intersection data and the map data stored in the map data storage unit 620, and the route search unit 640 has a route search function of a general car navigation device, for example. The travel route is searched by the same function as the above. At this time, since the extracted road and intersection data do not necessarily continue to the destination specified by the driver, for example, when performing a route search similar to the route search method in a general car navigation system It is also possible to reduce the travel cost calculated for the extracted roads and intersections, and to select a road that can travel as much as possible by route search (step B7).

  The communication unit 610 transmits the searched route data to the communication unit 580 of the in-vehicle terminal 500 via the network 700 (Steps B8 and B9).

  The navigation means 570 performs route guidance according to the route transmitted from the information server 600 (step B10).

  As described above, according to the present embodiment, all the road and intersection information extracted as in the above-described embodiment described with reference to FIG. 1 is transmitted to the in-vehicle terminal by performing the route search on the information server 600 side. Compared to the case, the amount of communication and the communication charge by data communication can be suppressed in that only the searched route is transmitted.

  In addition, since the information server 600 performs the route search, for example, a general car navigation device that does not constitute the driveable road storage unit 520 or the like can search for a route that can drive or easily drive the amount of the vehicle, or route guidance. It becomes easy to do.

  Note that the program for the CPU to execute the processing shown in the flowcharts of the drawings constitutes a program according to the present invention. As a recording medium for recording the program, a semiconductor storage unit, an optical and / or magnetic storage unit, or the like can be used. By using such a program and a recording medium in a system having a configuration different from that of each of the above-described embodiments and causing the CPU to execute the program, substantially the same effect as the present invention can be obtained.

  Although the present invention has been specifically described above based on the preferred embodiments, it is needless to say that the present invention is not limited to the above-described ones and can be variously modified without departing from the gist thereof.

1 is an overall configuration diagram of a route guidance system according to an embodiment of the present invention. It is a flowchart which shows the operation | movement process at the time of transmitting driving | running route track record information from the vehicle-mounted terminal 100 which concerns on embodiment of this invention. It is a figure which shows an example of the data memorize | stored in the road attribute memory | storage part 230 with which the information server 200 which concerns on embodiment of this invention is provided. It is a figure which shows the operation | movement process which concerns on embodiment of this invention. 1 is an overall configuration diagram of a route guidance system according to an embodiment of the present invention. It is a flowchart which shows the operation | movement process which concerns on embodiment of this invention.

Explanation of symbols

100, 500 In-vehicle terminal 110, 510 External output unit 120, 520 Travelable road storage unit 130, 530 Own vehicle travel route storage unit 140, 540 Input unit 150, 550 Vehicle information storage unit 160, 220, 620, 560 Map data storage Unit 170, 570 Navigation unit 180, 210, 580, 610 Communication unit 200, 600 Information server 230, 630 Road attribute storage unit 300, 700 Network 640 Route search unit

Claims (11)

A route guidance system having a configuration in which an in-vehicle terminal having a navigation means and an information server are connected via a network,
The in-vehicle terminal is
Input means for inputting vehicle information;
Storage means for storing the input vehicle information;
An actual travel route storage means for storing a route traveled by the host vehicle in association with roads or intersection information in the map data ;
Communication means for performing information communication with the information server via the network,
The communication means transmits travel route information and vehicle information of a route traveled by the host vehicle to the information server together with a travel time,
The information server includes communication means for performing information communication with the at least one on-vehicle terminal via the network;
Map data storage means for storing map data;
Based on the travel route information, travel time, and vehicle information transmitted from the in-vehicle terminal, the vehicle information of the vehicle that can travel on each road in association with the road or intersection information in the map data, and right and left turn is possible at each intersection Road attribute storage means for storing vehicle information and the like,
The navigation means that the in-vehicle terminal has received, based on the vehicle information of the host vehicle, queries the information server for road information that the host vehicle can travel, and is extracted from the road attribute storage means that the information server has received and received A route guidance system that performs route search and guidance based on travelable road information. 2. The route guidance system according to claim 1, wherein the vehicle information stored in the road attribute storage means of the information server is associated with restriction information stored in advance in the map data . The restriction information includes a width restriction, a height restriction, and a weight restriction, and at least one of the total length, the full height, the full width, the weight, the minimum turning radius, and the passage date / time of the vehicle transmitted from the in-vehicle terminal is linked to the restriction information. 3. The route guidance system according to claim 2 , wherein the route guidance system is stored in road attribute storage means of the information server . The travelable road information refers to actual travel information within the effective period specified on the terminal side described above at roads and intersections in the travel prediction area specified on the in-vehicle terminal side, and The route guidance system according to claim 1 , wherein the route guidance system is travelable road information extracted under the maximum constraint condition among the constraint conditions. 4. The route guidance system according to claim 3, wherein when the in-vehicle terminal makes an inquiry to the information server, the restriction information stored in the road attribute storage means of the information server is selected and specified . A route guidance system having a configuration in which an in-vehicle terminal having a navigation means and an information server are connected via a network,
The in-vehicle terminal is
Input means for inputting vehicle information;
Storage means for storing the input vehicle information;
An actual travel route storage means for storing a route traveled by the host vehicle in association with roads or intersection information in the map data ;
Communication means for performing information communication with the information server via the network,
The communication means transmits travel route information and vehicle information of a route traveled by the host vehicle to the information server together with a travel time,
The navigation means performs a route search request together with vehicle information to the information server when performing a route search,
The information server
Communication means for performing information communication with at least one or more of the in-vehicle terminals via the network;
Map data storage means for storing map data;
Based on the travel route information, travel time, and vehicle information transmitted from the in-vehicle terminal, the vehicle information related to the map data, the vehicle that was able to travel on each road, the vehicle information that could be turned left and right at each intersection, etc. Road attribute storage means for storing;
In response to vehicle information and a route search request transmitted from the in-vehicle terminal, the map data recording means and the road attribute storage means are referred to, and route search means for searching for a travelable route,
The communication means transmits the route information searched by the route search means to the in-vehicle terminal,
The navigation means of the in-vehicle terminal performs route guidance based on route information transmitted from the information server. Input means for inputting vehicle information;
Storage means for storing the input vehicle information;
An actual travel route storage means for storing a route traveled by the host vehicle in association with roads or intersection information in the map data ;
Communication means for performing information communication with an external device via a network,
The communication means transmits information on a route traveled by the host vehicle and vehicle information together with a travel time to an external device,
Navigation means for performing route search and guidance based on the road information on the road that the vehicle can drive based on the vehicle information of the vehicle based on the road information obtained by inquiring an external device. In-vehicle terminal. A communication means for performing information communication with at least one on-vehicle terminal via a network;
Map data storage means for storing map data;
Based on the travel route information, travel time, and vehicle information associated with the road or intersection information of the map data transmitted from the in-vehicle terminal, the vehicle information associated with the map data and the vehicle that has been able to travel for each road, or for each intersection Road attribute storage means for storing vehicle information etc. that could be turned right and left;
In response to vehicle information and a route search request transmitted from the in-vehicle terminal, the map data recording means and the road attribute storage means are referred to, and route search means for searching for a travelable route,
The information server characterized in that the communication means transmits the route information searched by the route search means to the in-vehicle terminal. Inputting vehicle information;
Storing the input vehicle information;
Storing the route traveled by the host vehicle as route information in association with road or intersection information in the map data ;
A step of transmitting route information and vehicle information obtained by traveling of the host vehicle to an external device together with a traveling time;
A step of inquiring an external device about road information on which the host vehicle can travel based on the vehicle information of the host vehicle;
A step of obtaining travelable road information according to the inquiry;
And a route searching and guiding step based on the travelable road information. A process of inputting vehicle information;
A process of storing the input vehicle information;
A process of storing a route traveled by the host vehicle as route information in association with road or intersection information in map data ;
A process of transmitting route information and vehicle information on which the vehicle has traveled to an external device together with travel time;
Based on the vehicle information of the host vehicle, a process of querying an external device for road information on which the host vehicle can travel,
A process of acquiring travelable road information according to the inquiry;
The route guidance program which makes a computer perform the process which performs route search and guidance based on the said driveable road information. A computer-readable recording medium for recording the process of the route guidance program according to claim 10.

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