JP3604288B2 - Vehicle navigation system - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle navigation device that performs route guidance according to a route to a set destination.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a vehicle navigation device, a route from a departure place to a destination is set, and route guidance is performed according to the set route. In addition, when setting the route, a function is provided that allows the operator (user) to select whether or not to pass through the expressway. If the user selects to go through the expressway, the route through the expressway is set. It is supposed to be.
[0003]
[Problems to be solved by the invention]
However, in the set route, the interchange at the entrance or exit of the expressway may not be set at the place intended by the user. In this case, there is a problem that it is not easy to set the interchange of the entrance or the exit of the expressway at the place intended by the user even if the user attempts to reset the route.
[0004]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and allows a user to easily pass through an interchange at an entrance and / or an exit of an expressway (including a motorway having an entrance to a general road, a bypass road, etc.). It is an object of the present invention to make it possible to reset a route to a user.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, when a route through a highway is set as a route to a destination, an entrance of a currently set highway is set based on a user operation. Reads the names of interchanges connected to the interchange or exit interchange, connects the names of interchanges that can be displayed on the display screen in the vertical direction of the display screen, displays them in a list, and changes the entry or exit on the display device Means for providing a display for making the change to change the interchange at the entrance and / or exit of the expressway, and means for re-establishing a route to the destination through the changed entrance and / or exit interchange It is characterized by having.
[0006]
According to the present invention, the user can easily reset the route intended by the user by performing an operation of changing the interchange at the entrance and / or the exit of the expressway.
According to the second aspect of the present invention, in the vehicle navigation device according to the first aspect, in the list display, another interchange is connected in a right or left direction of a display screen from an interchange which is a junction (JCT). It is characterized by being displayed .
According to the invention described in claim 3, in the vehicle navigation device according to claim 1 or 2, the name of the interchange not displayed on the display screen of the display device is changed to a desired interchange name by operating a scroll switch. Is displayed on the display screen.
According to a fourth aspect of the present invention, there is provided the vehicle navigation device according to any one of the first to third aspects, wherein a name of an expressway entrance interchange, an name of an exit interchange, an expressway, The usage fee and the required time are displayed, and in this display state, the interchange at the entrance and / or exit of the expressway is changed.
In the invention according to claim 5, in the vehicle navigation device according to any one of claims 1 to 4, the display screen of the display device includes a departure point, a destination, an entrance interchange, and an exit interchange. It is characterized by displaying a rough route from a departure place to a destination.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention shown in the drawings will be described.
FIG. 1 shows the overall configuration of a vehicle navigation device. The vehicle navigation device includes a GPS receiver 1, a gyro 2, a vehicle speed sensor 3, a map data reading device 4, an operation switch unit 5, a remote control 6, a remote control sensor 7, a control device 8, an external memory 9, a display device 10, and the like. Have been.
[0008]
The GPS receiver 1 receives a radio wave from an artificial satellite and outputs a signal indicating the current location of the vehicle. The gyro 2 outputs a signal according to the traveling direction of the vehicle, and the vehicle speed sensor 3 outputs a signal according to the vehicle speed.
The map data reading device 4 constitutes a map data reading means for reading map data from a map data storage medium such as a CDROM or a DVD for storing map data. The map data is read from the storage medium and output to the control device 8. The map data stored in the map data storage medium includes data necessary for setting a route to a destination.
[0009]
The operation switch unit 5 is operated by a user and outputs various operation signals necessary for navigation according to the operation. The operation switch unit 5 can perform input operations on the screen of the display device 10, and the operation of the display device 10. It is composed of a key operation unit provided around the screen. The remote controller 6 transmits an operation signal according to a user's operation, and the remote controller sensor 7 receives an operation signal from the remote controller 6.
[0010]
The control device 8 is configured to include computer means such as a microcomputer, and executes various arithmetic processes necessary for navigation based on signals from the above-described respective means. Specifically, the current position of the vehicle is obtained based on the signal from the GPS receiver 1 and the signals from the gyro 2 and the vehicle speed sensor 3, and a map data reading command is output to the map data reading device 4 to output a map data storage medium. , And the map is displayed on the display device 10. When a destination is set, the control device 8 causes the display device 10 to perform a route to the destination, thereby performing route guidance. Note that various programs and data necessary for the above-described arithmetic processing are stored in the external memory 9.
[0011]
The display device 10 is provided on the instrument panel of the vehicle, displays a road map including the current location of the vehicle, and performs the above-described route guidance display during route guidance. As the display device 10, a liquid crystal display device, a CRT display device, or the like can be used.
In the above-described configuration, when the user performs a predetermined operation such as setting a destination in order to perform route guidance, the control device 8 performs a route calculation using the Dijkstra method or the like and performs a route calculation from the departure point to the destination. Set. Further, the control device 8 has a function that allows the user to select whether or not to pass through the expressway. If the user selects to pass through the expressway, the controller 8 sets a route that passes through the expressway. FIG. 2 shows a display example when a route passing through an expressway is set. In addition, the map part other than a route is omitted.
[0012]
In this embodiment, it is possible to change the entrance interchange of the expressway to correct the route intended by the user. Hereinafter, the correction of the route will be described.
In order to make this correction, the user performs a touch operation on “change of expressway entrance” displayed on the screen shown in FIG. When detecting the touch operation, the control device 8 executes a route correction process shown in FIG.
[0013]
First, the display screen of the display device 10 is set to a display mode for changing the entrance of an expressway (step 101). FIG. 4 shows a display example. In this case, an approximate route from the departure place to the destination, the entrance of the expressway, the exit interchange name, the expressway usage fee, the required time, and the like are displayed on the display screen.
In such a display state, when "change of expressway entrance" or "change of expressway exit" on the screen is touched, a process of changing the entrance or exit interchange of the expressway is executed.
[0014]
For example, when a touch operation of “change expressway entrance” is performed, the control device 8 determines that there is an entrance change instruction (step 102) and executes an entrance change process (step 104). In the entrance change processing, the name of the interchange connected to the currently set entrance interchange is read from the map data storage medium, and the display device 10 performs a display for performing the entrance change. FIG. 5 shows an example of the display. In this case, among the read interchange names, a list of interchange names that can be displayed on the display screen is displayed, and for the interchange names not displayed, the desired interchange name is operated by operating a scroll switch (shown by a black triangle in the figure). Is displayed. Further, by performing a touch operation on a desired interchange name, the entrance interchange is changed.
[0015]
Further, when a touch operation of “change expressway exit” is performed, the control device 8 determines that an exit change instruction has been issued (step 103), and executes an exit change process (step 105). In this exit change processing, the name of the interchange connected to the currently set exit interchange is read from the map data storage medium, and the display device 10 performs a display for changing the exit. FIG. 6 shows an example of the display. Also in this case, among the read interchange names, a list of interchange names that can be displayed on the display screen is displayed, and for the interchange names that are not displayed, a desired interchange is operated by operating a scroll switch (shown by a black triangle in the figure). Display the first name. Further, the exit interchange is changed by touching a desired interchange name.
[0016]
It should be noted that step 104 of the above-described entrance change processing includes steps 104a and 104b for determining whether or not “change expressway exit” and “start search again” in the screen shown in FIG. 5 have been touched. If the "change expressway exit" is touched, the process proceeds from step 104a to step 105, where exit change processing is performed. In addition, step 105 of the exit change processing described above includes steps 105a and 105b for determining whether or not “change expressway entrance” and “start re-search” in the screen shown in FIG. 6 are touched. When the "change of expressway entrance" is touched, the process proceeds from step 105a to step 104 to perform an entrance change process.
[0017]
Then, when the change of the entrance or exit interchange of the expressway is completed, and the user performs a touch operation on “Start re-search” displayed on the screen of FIG. 5 or FIG. 6, the process proceeds from step 104b or 105b to step 106, A route to the destination is set through the changed highway entrance and / or exit interchange. Then, route guidance is performed according to the route thus reset.
[0018]
In the above-described embodiment, the entry or exit interchange name to be changed is touched to change the name. In addition, as shown in FIG. 7, the entrance interchange (exit interchange) on the map display is changed. May be changed by a touch operation at the point (2). In this case, the coordinates of the screen touched on the screen are converted into coordinates of latitude and longitude, and an interchange in the vicinity is determined from the coordinates.
[0019]
In the case where the guide route includes getting on and off of a plurality of highways, as shown in FIG. 8, the names of the getting on and off interchanges of the plurality of highways are displayed in a list, and the highway including the entrance and / or exit interchange to be changed is displayed. And changes the entrance and / or exit interchange for the selected expressway in the same manner as in the above-described embodiment.
[Brief description of the drawings]
FIG. 1 is a diagram showing an overall configuration of a vehicle navigation device according to an embodiment of the present invention.
FIG. 2 is a diagram showing a display example when a route passing through an expressway is set.
FIG. 3 is a flowchart illustrating a route correction process performed by a control device 8;
FIG. 4 is a diagram showing a display example in the case of changing the entrance of an expressway.
FIG. 5 is a diagram showing a display example in the case of changing the entrance of an expressway.
FIG. 6 is a diagram showing a display example when an exit of an expressway is changed.
FIG. 7 is a diagram showing a display example in a case where an entrance is changed by touching an interchange on a map display.
FIG. 8 is a diagram showing a display example for changing an entrance when a guide route includes getting on and off a plurality of highways.
[Explanation of symbols]
1. GPS receiver 2. Gyro 3. Vehicle speed sensor
4 map data reader, 5 operation switch, 6 remote control,
7 remote control sensor, 8 control device, 9 external memory, 10 display device.

Claims (5)

In a vehicle navigation device that performs route guidance according to a route to a set destination,
When a route through the highway is set as the route to the destination, the name of the interchange connected to the currently set entrance or exit interchange of the highway is read based on the operation of the operator. The number of interchange names that can be displayed on the display screen among the interchange names is displayed in a list by connecting the names of the interchanges in the vertical direction of the display screen, and the display device performs a display for making an entrance change or an exit change. Means for changing the entrance and / or exit interchange of the
Means for resetting a route to the destination so as to pass through the changed entrance and / or exit interchange. 2. The vehicle navigation device according to claim 1, wherein, in the list display, another interchange is connected and displayed in a right or left direction of the display screen from an interchange as a junction . 3. By operating the names scroll switch for the interchange is not displayed on the display screen of the display device, a vehicle navigation according to claim 1 or 2, characterized in that to display the desired interchange name on the display screen apparatus. The name of the expressway entrance interchange, the name of the exit interchange, the expressway usage fee, and the required time are displayed on the display screen of the display device, and in this display state, the interchange of the entrance and / or exit of the expressway is changed. The vehicular navigation device according to any one of claims 1 to 3, wherein: The display screen of the display device displays an approximate route from a departure point to a destination including a departure point, a destination, an entrance interchange, and an exit interchange, according to any one of claims 1 to 4, wherein The vehicle navigation device according to any one of the preceding claims.

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