JP3848594B2 - Car navigation system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an in-vehicle navigation device in which a user sets route priority and toll road priority to perform route search and route guidance.
[0002]
[Prior art]
In the conventional navigation device, the user can select whether to give priority to the toll road as the route guidance setting. In Japanese Patent Laid-Open No. 10-89986, a general road priority road mode or a toll road priority mode is selected in advance, a route search is performed according to the selected mode, and a route guidance is performed based on the searched route. In the vehicle navigation device that performs a re-search when traveling off the route and makes a new guidance route, when searching in the general road priority mode and traveling on a toll road outside the route during the route guidance, An invention such as a vehicle navigation device is disclosed that includes means for switching from the general road priority mode to the toll road priority mode, and performs a re-search with priority on the toll road.
[0003]
[Problems to be solved by the invention]
However, in the conventional navigation device described above, even when the route is prioritized for general roads, even if the user deviates from the guidance route and enters the toll road, the guidance route is re-searched and the nearest exit If the user wants to use the toll road as close as possible to the destination when the toll road has a flat fee system, the next time he passes the exit There is a problem that it is troublesome because it is guided so as to exit at the exit, and the guidance route is frequently re-searched, so that the guidance on the toll road is not sufficiently performed.
[0004]
In addition, the invention described in Japanese Patent Laid-Open No. 10-89986 in the above prior art is one method for solving the above-mentioned problem. Regardless, when there is a section where the fare is uniform, the toll road cannot reflect the user's intention to pass only the uniform fare section. Examples of toll roads that include uniform toll sections include, but are not limited to, city expressways such as the Metropolitan Expressway.
[0005]
The present invention solves the above-mentioned conventional problem, and when a user sets route priority and toll road priority and performs route search and route guidance, guidance close to the user's intention can be provided. An object of the present invention is to provide a vehicle-mounted navigation device.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an in-vehicle navigation device in which a user sets a general road priority or a toll road priority to perform route search and route guidance to a destination .
Toll road price table,
When a toll road deviates from the route during route guidance with priority on general roads, and there is a uniform toll section in the toll road toll table, an exit close to the destination in the toll uniform section. and means for performing a re-search in at a fee road priority,
It is characterized by having.
With the above configuration, if you travel on a toll road in a uniform toll section while deviating from the guidance route during route guidance with priority on general roads, re-search by considering the toll road priority to the exit near the destination in the toll uniform section Therefore, guidance close to the user's intention can be provided.
[0007]
Further, in order to achieve the above object, the present invention provides an in-vehicle navigation device in which a user sets a general road priority or a toll road priority to perform route search and route guidance to a destination .
Toll road price table,
When a general road is preferentially routed and the toll road is deviated from the route, and there is a uniform charge section in the toll road charge table, there is a charge to the exit close to the destination in the uniform charge section Means for re-searching with priority roads
When exiting the general road out of the path of the toll road in the path of guidance of the toll road priority, and if the exit of the toll road is the end point of the Rate uniform interval, the re-search in the subsequent general road priority Means to do
It is characterized by having.
With the above configuration, if you travel on a toll road in a uniform toll section while deviating from the guidance route during route guidance with priority on general roads , re-search by considering the toll road priority to the exit near the destination in the toll uniform section Therefore, it is possible to provide guidance that is close to the user's intentions, and while driving on toll roads with priority to the toll road and guiding toll roads in the uniform toll section, deviate from the guide route at the end of the toll section and travel on ordinary road In this case, since the user's intention is regarded as the general road priority and the search is performed again, guidance close to the user's intention can be performed.
[0008]
In the in-vehicle navigation device according to claim 1 or 2, the present invention further includes means for obtaining toll information of the toll road toll table through an ETC on-board device.
With the above configuration, when the toll road charge is changed, it can be updated to the latest toll information.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of an in-vehicle navigation device according to the present invention, FIG. 2 is an explanatory diagram showing a setting screen of the in-vehicle navigation device of FIG. 1, and FIG. 3 is a charge table of the in-vehicle navigation device of FIG. FIG. 4 is a flowchart for explaining the navigation processing of the in-vehicle navigation device of FIG.
[0010]
In FIG. 1, a CPU 1 operates according to a program stored in a ROM 3 using a RAM 2 as a work memory. When displaying the map screen, the map data is read from the DVD-ROM 5 stored in the DVD-ROM drive 4 via the input / output control unit 6, and the CPU 1 processes the read map data to draw it. A drawing command is issued to the processor 8. The drawing processor 8 performs a drawing process according to the drawing command and displays a map screen on the display 9.
[0011]
The current position of the vehicle can be grasped by the CPU 1 by one or more of signals from the GPS receiver 7, a vehicle speed sensor (not shown), an acceleration sensor, an angular velocity sensor, and the like. Normally, a map around the current position of the vehicle is displayed, but the user can scroll the map screen or change the scale via the operation control unit 10.
[0012]
In the in-vehicle navigation device of the present embodiment, the user can perform route guidance by designating a start point and an end point (destination). At this time, as shown in FIG. 2, it is possible to select whether or not route guidance is preferentially performed on the “toll road”. When the “priority road” is not set to “priority”, that is, when the route search is performed with the “general road priority” setting, a route that does not pass through the toll road is basically searched and guided. If the user travels according to the guidance route but deviates from the guidance route for some reason, the route is re-searched.
[0013]
Here, if the user deviates from the guidance route and travels on the toll road, the charge table in the DVD-ROM 5 shows the charge from the entrance of the toll road to the nearest exit and the charges to other exits. Compare. The DVD-ROM 5 stores toll data as illustrated in FIG. If the fare to the most recent exit is the same as the fare to other exits, that is, if there is a uniform fare section, the `` toll road priority '' will be applied to the exit closest to the destination in the uniform fare section Re-searching as if
[0014]
Also, if the “toll road” is set to “priority” and the route search is performed, if it is appropriate to use the toll road, the route passing through the toll road is searched and guided. If the user travels according to the route guidance but deviates from the guidance route for some reason, the route is re-searched. Here, when a user traveling on a toll road deviates from the guidance route and exits from the exit of the toll road to the general road, the charge table in the DVD-ROM 5 is referred to, and the exit is a uniform charge section. If it is the end of the road, it is presumed that there is no intention to use the toll road after that, and the route to the destination or waypoint is re-searched with the “general road priority” setting.
[0015]
FIG. 4 shows the above operation in a flowchart. That is, in step S1, it is determined whether or not “route guidance is in progress”. If it is not “route guidance is in progress”, a normal operation is executed (step S12), and then the process ends. In the case of “route guidance in progress” in step S1, it is determined whether or not “guide route departure” (step S2). If not “guide route departure”, normal operation is executed (step S12), and then the process ends.
[0016]
In the case of “guide route departure” in step S2, it is determined whether or not “toll road priority” (step S3), and in the case of “toll road priority”, it is determined whether or not “toll road guidance is being performed” (step S3). S4). In the case of “Toll road guidance in progress”, it is determined whether or not “Fixed toll section end” (step S5). In the case of “Fixed toll section end”, the route is re-searched with priority to the general road to the destination. (Step S6) Then, the process is terminated, and if it is not "toll road guidance" in step S4 and if it is not "end of uniform charge section" in step S5, the route search is performed again with priority on the toll road (step S7). Then, the process ends.
[0017]
If it is not “toll road priority” in step S3, it is determined whether or not the vehicle has deviated from the toll road (step S8). When it deviates from the toll road, it is determined whether or not it is a “flight uniform section” (step S9). In the case of “flight uniform section”, the route is searched again on the toll road to the end of the uniform section (step S10). Then it ends. If there is no departure from the toll road in step S8, and if it is not a “flight uniform section” in step S9, the route is searched again with priority on the general road (step S11), and then the process ends.
[0018]
In addition, if the same operation | movement can be performed, it can implement not only in the flowchart of FIG. It is also possible to obtain toll road toll information through the ETC onboard device 11.
[0019]
【The invention's effect】
As explained above , when driving on a toll road in a uniform toll section while deviating from the guide route during route guidance with priority on general roads , the user's intention is re-established with the toll road priority to the end of the uniform toll section. Since the search is performed, guidance close to the user's intention can be provided.
In addition , when driving on a general road that deviates from the guide route at the end of a uniform toll section while guiding a toll road with priority toll roads and guiding toll roads in a uniform toll section, the user's intention is to prioritize the general road after that As a result, re-searching is performed, and guidance close to the user's intention can be provided.
Furthermore , when the toll road fee is changed, the latest toll information can be updated.
[Brief description of the drawings]
FIG. 1 is a block diagram of an embodiment of an in-vehicle navigation device according to the present invention. FIG. 2 is an explanatory diagram showing an example of a guide route setting screen in the embodiment of FIG. FIG. 4 is a flow chart showing an example of a route guidance method by the in-vehicle navigation device of the present invention.
1 CPU
2 RAM
3 ROM
4 DVD-ROM drive 5 DVD-ROM
6 Input / output control unit 7 GPS reception unit 8 Drawing processor 9 Display 10 Operation control unit 11 ETC on-board unit

Claims (3)

In the in-vehicle navigation device that performs route search and route guidance to the destination by the user setting whether general road priority or toll road priority,
Toll road price table,
When a toll road deviates from the route during general road priority route guidance and there is a uniform charge section in the toll road charge table, an exit close to the destination in the uniform charge section and means for performing a re-search at a fee road priority until,
An in-vehicle navigation device comprising: In the in-vehicle navigation device that performs route search and route guidance to the destination by the user setting whether general road priority or toll road priority,
Toll road price table,
If you are traveling on a toll road outside the general road priority route guidance and there is a uniform charge section in the toll road charge table, there is a charge to the exit near the destination in the uniform charge section Means for re-searching with priority roads;
When exiting the general road out of the path of the toll road in the path of guidance of the toll road priority, and if the exit of the toll road is the end point of the Rate uniform interval, the re-search in the subsequent general road priority Means to do
An in-vehicle navigation device comprising:   The in-vehicle navigation device according to claim 1, further comprising means for obtaining toll information in the toll road toll table through an ETC in-vehicle device.

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