JP3807918B2 - Car navigation system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an in-vehicle navigation device having a map screen and a character screen, and more particularly to a device that effectively uses information from a character screen.
[0002]
[Prior art]
On the map screen of the vehicle-mounted navigation device, the road is often colored on the displayed map so that it can be easily understood. On the map, not only road information but also landmarks such as nearby family restaurants, convenience stores and gas stations can be displayed. Further, when a route search is performed between the current location and the destination, the road to be guided based on the guidance result is displayed on the map screen. Voice guidance is also provided at the intersection to be passed. Furthermore, in order to make it easier to grasp the landmarks displayed on the map in unguided lands, the character screen lists the name of the intersection to be guided and the direction of the route based on the route results. . In addition, IIS (Intergrated Information System) search allows you to search tourist spots, gas stations, golf courses, family restaurants, convenience stores, etc. around the route by genre and display these results on the character screen. is there. In other words, the IIS search is useful when you want to get information about the surrounding area on an unknown land.
[0003]
[Problems to be solved by the invention]
By the way, a small road is not displayed on the map screen of the vehicle-mounted navigation device, and this is not displayed when a new road is provided. For this reason, the route of the vehicle may deviate from a small road or a new road. If the intersections are continuous, the map display and the voice display alone may pass in time. As described above, when the user goes out of the route, information that the user has gone out of the route is needed to return to the original route, and when the vehicle passes by without knowing which intersection has passed, it is necessary to provide the information immediately. However, there is a problem that the conventional in-vehicle navigation device cannot give such information at all. Furthermore, the IIS search has a problem that the operation is complicated and the operation cannot be performed while the vehicle is running, so that there are not many opportunities to use it.
[0004]
Therefore, in view of the above-described problems, an object of the present invention is to provide an in-vehicle navigation device that can provide appropriate information for an off-route and passing and can effectively use an IIS search.
[0005]
[Means for Solving the Problems]
According to the vehicle-mounted navigation device according to the present invention, the map screen control means for controlling to display the searched route and the vehicle position together with the map on which the landmark is displayed , and the character corresponding to the landmark on the map. Character screen control means for controlling to display a list,
The character screen control means performs a list display so as to update the display of characters corresponding to the landmark according to the vehicle position,
A range for displaying a list of characters corresponding to the landmark can be set by a user instruction.
[0006]
When the list is displayed, control is performed so that characters corresponding to landmarks behind the vehicle position are deleted from the screen.
Further, when the list is displayed, the display color of the character corresponding to the landmark behind the vehicle position is controlled to be changed.
[0007]
The landmarks and the characters corresponding to the landmarks are displayed in the order in which they appear as the vehicle progresses.
[0008]
The landmarks and the characters corresponding to the landmarks are displayed only for the selected genre.
[0009]
Further, the character corresponding to the landmark and landmark, and displays the distance from the vehicle position to the landmark.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing an example of a vehicle-mounted navigation device according to the present invention. As shown in the figure, the navigation device 2 has a memory, inputs the position of the own vehicle from a location part (not shown), and inputs data such as a road map of a certain range from the CDROM 1 around this position. To the above memory. The road map data developed with the progress of the vehicle position is scrolled. In this way, the developed road map data is displayed on a display such as a liquid crystal display.
[0011]
Furthermore, the navigation device 2 can perform an optimum route search from the own vehicle position and the target position, and can guide the traveling direction according to the route.
The navigation device 2 includes a map screen control unit 2A that controls a map screen that displays the road map data and the like, and a character screen that controls a character screen that displays only character information related to the display of the map screen. A control unit 2B is provided. Then, a map screen and a character screen are alternatively displayed on the display 3.
[0012]
Further, a remote controller 4 for controlling from the outside of the navigation device 2 is provided. The remote control 4 can also switch between a map screen and a character screen. In addition to the remote controller 4, a touch panel, a pad, or the like may be used.
2 is a diagram for explaining an example of the operation of the map screen control unit 2A for controlling the display of the map screen on the display 3 of FIG. 1. FIG. 3 shows the display of the character screen on the display 3 of FIG. It is a figure explaining an example of operation | movement of the character screen control part 2B to control. As shown in FIG. 2, the position of the vehicle is displayed on the road on the map screen, and landmarks around the route on which the vehicle travels, for example, a restaurant landmark at position (A) and an intersection at position (B). The landmark XXX (intersection name, for example, Toranomon 3-chome) is displayed.
[0013]
At locations (C), (D), (E), and (F), landmarks of intersections, convenience stores, intersections, and gas stations are displayed.
Here, the positions (A) and (B) are positions where the own vehicle has already passed, and the positions (C), (D), (E) and (F) are positions where the vehicle will proceed.
As shown in FIG. 3, corresponding to the landmark on the map screen of FIG.
For the landmark of the restaurant at the position (A), restaurant name characters such as “ΔΔΔ restaurant” are displayed in a list.
[0014]
Similarly, for the landmark of the XX intersection at position (B), the intersection name and the traveling direction are displayed in a list as characters, such as "XX intersection ... straight ahead".
For the landmark of the XX intersection at position (C), the name of the intersection and the direction of travel, such as "XX intersection ... straight ahead", and the distance "L1" (number of kilometers) from your vehicle are characters. Is displayed as a list.
[0015]
For the convenience store landmark at the position (D), a convenience store name character such as “ΔΔΔ convenience store” and a distance “L2” from the host vehicle are displayed as a list.
For the landmark at the XX intersection at position (E), the intersection name and direction of travel are displayed, as in "XX intersection ... left turn", and the distance "L3" from the vehicle is displayed in a list. The
[0016]
For the landmark of the petrol station at position (F), a petrol station name character such as “ΔΔΔ petrol station” and a distance “L4” from the host vehicle are displayed in a list.
FIG. 4 is a diagram showing an example of list display with characters only at intersections, FIG. 5 is a diagram showing an example of character display only with restaurants, and FIG. 6 is a diagram showing an example of character list display with only gas stations FIG. 7 is a diagram showing an example of character list display only for golf courses, and FIG. 8 is a diagram showing an example of character list display only for sightseeing spots.
[0017]
As shown in FIG. 4 to FIG. 8, the character screen control unit 2B is classified according to genre, such as an intersection, a restaurant, a gas station, a golf course, a tourist spot, etc. Can be listed and displayed in letters with the number of kilometers. For example, the character list is displayed in black on a white background.
[0018]
FIG. 9 is a flowchart for explaining an example of the character display deletion operation using the character display example of the intersection by the character screen control unit 2B.
In step S1, it is determined whether the vehicle position is 300 meters before the intersection. If this determination is “NO”, return processing is performed. In the case of “NO”, when traveling along a route, it means that the vehicle has not yet come 300 before the intersection. In addition, when the vehicle is not traveling along the route, the navigation device 2 calculates the distance between the vehicle position and the next intersection, and even if it comes before a certain intersection, it does not come before 300. Means.
[0019]
In step S2, if the above determination is “YES”, the character display of the corresponding intersection is colored blue.
In step S3, it is determined whether the vehicle position is 100 meters before the intersection. If this determination is “NO”, return processing is performed.
If the above determination is “YES” in step S4, the character display of the corresponding intersection is colored red.
[0020]
In step S5, it is determined whether the own vehicle is passing the intersection. If this determination is “NO”, return processing is performed.
In step S6, if the above determination is “YES”, the character display of the corresponding intersection blinks.
In step S7, it is determined whether the vehicle has passed the intersection. If this determination is “NO”, return processing is performed.
[0021]
In step S8, if the above determination is “YES”, the character display of the corresponding intersection is deleted. Instead of this deletion, the character display may be colored yellow or the display position column may be changed.
Therefore, when approaching an intersection, the color of the character display changes, the character display blinks while passing, and it can be recognized that the character display is deleted after passing. In this case, it can be determined that the route is proceeding smoothly. . In this case, even if the passage of the previous intersection cannot be recognized, it can be determined later that the vehicle has definitely passed. Conversely, if the color of the character display does not change even when approaching an intersection, the character display does not blink even while passing, and if the intersection is not deleted even if it passes further, it can be determined that it has deviated from the route before that become.
[0022]
As described above, since it is possible to switch from the map screen to the character screen by the remote control 4, the route can be safely and smoothly routed from the running map screen to the character screen when waiting for a signal at an intersection. Information on departure or passing of an intersection can be obtained.
FIG. 10 is a modification of the in-vehicle navigation device of FIG. As shown in the figure, the navigation device 2 inputs vehicle stop information from the side brake or the vehicle speed pulse sensor 5. Based on the vehicle stop information, the navigation device 2 switches the map screen to a character screen. Thus, since the character screen is displayed when the vehicle is stopped, it is possible to reliably obtain information that is off the route or has passed the intersection without operating the remote controller 4 such as waiting for a signal. Can do.
[0023]
The remote controller 4 may be switched only when there is vehicle stop information from the side brake and the vehicle speed pulse sensor 5. While traveling, the map screen is not switched to the character display screen, so it becomes safe. That is, the intersection can be confirmed by comparing the character screen and the map only when the vehicle is stopped.
[0024]
FIG. 11 is a diagram showing a modification of the display 3 of FIG. 1 or FIG. As shown in this figure, two driver displays 3A and a passenger display 3B connected to the navigation device 2 are provided. The driver display 3A can display only a map screen while the vehicle is traveling, and the passenger display 3B can display a character screen while the vehicle is traveling. The passenger can use the passenger display 3B to make a character screen while traveling and determine whether the route is off or the intersection is passed. In this way, since the driver and the passenger can obtain different information, driving becomes safer and smoother. Passengers can see the intersection ahead and tell the driver that it can travel reliably.
[0025]
Further, both the driver display 3A and the passenger display 3B can be switched from the map screen to the character screen and vice versa with one touch. As a result, the passenger can further see the character information against the map. It is possible to switch display contents depending on whether the vehicle is running or stopped by one-touch switching.
[0026]
When the route search is performed, information such as sightseeing spots around the route, gas stations, golf courses, family restaurants, convenience stores, etc. are read out, and the passenger's display 3B has information on the surroundings of the position of the traveling vehicle as characters. Is displayed. In this way, for example, it is difficult to see information other than the route on the map, but by displaying in characters, information such as a gas station can be obtained in one shot.
[0027]
Further, on the passenger display 3B, detailed character display may be performed for each genre such as a sightseeing spot, a gas station, a golf course, a family restaurant, a convenience store, and the like around the route. These genres are switched in the order of sightseeing spot → gas station → golf course → family restaurant → convenience store each time a switch such as the remote controller 4, other pads, or touch panel is pressed. In addition, detailed information which becomes complicated when it appears on the map screen can be obtained by using the above-described IIS search, and a lot of information can be utilized. By providing character information to the passenger, it is possible to obtain various types of information while traveling. Since it is provided to passengers, there is no problem in driving. The driver can obtain landmark information that is difficult to see through the passenger.
[0028]
FIG. 12 is a diagram showing an example in which the character display on the character screen of the passenger display 3B is deleted from the list. As shown in this figure, the character display of the landmark behind the direction of travel of the vehicle is deleted from the list on the character screen. In this way, along with the utilization of character information, the place and direction of running can be determined from what remains on the character screen. There is no waste in the time to reach the destination because there is no way to run backwards.
[0029]
FIG. 13 shows a modification of FIG. As shown in the figure, landmarks around the own vehicle position, that is, within a circle having a certain radius around the own vehicle position, are displayed as characters on the character screen. When it is out of this circle, the character display is deleted from the character screen. When it enters the circle, it will be displayed additionally. Like the above, there is no more useless way.
The radius may be set freely by the user. It is useful in various situations if the user can set it according to the situation, such as when the road is allowed or not. For example, it can be used properly depending on whether it is a suburban area or a town.
[Brief description of the drawings]
FIG. 1 is a diagram showing an example of an in-vehicle navigation device according to the present invention.
FIG. 2 is a diagram for explaining an example of the operation of a map screen control unit 2A that controls display of a map screen for displaying landmarks according to the present invention on the display 3 of FIG. 1;
FIG. 3 is a diagram for explaining an example of the operation of a character screen control unit 2B that displays a list of landmarks displayed according to the present invention on the display 3 of FIG. 1;
FIG. 4 is a diagram illustrating an example of a list display of characters only at intersections;
FIG. 5 is a diagram showing an example of a list display of characters only for a restaurant.
FIG. 6 is a diagram showing an example of a character list display of only a gas station.
FIG. 7 is a diagram showing an example of a character list display only for a golf course.
FIG. 8 is a diagram showing an example of a list display of characters only for sightseeing spots.
FIG. 9 is a flowchart for explaining an example of a character display deletion operation using a character display example of an intersection by the character screen control unit 2B.
FIG. 10 is a modification of the in-vehicle navigation device of FIG.
11 is a view showing a modification of the display 3 of FIG. 1 or FIG.
FIG. 12 is a diagram for explaining a case where a character display on a character screen is deleted from the list;
FIG. 13 is a diagram for explaining a case where landmarks around the vehicle position are displayed as characters.
[Explanation of symbols]
2 ... Navigation device 2A ... Map screen controller 2B ... Character screen controller 3 ... Display 3A ... Driver display 3B ... Passenger display 4 ... Remote controller

Claims (6)

Map screen control means for controlling to display the searched route and the vehicle position together with the map on which the landmark is displayed , and character screen control means for controlling to display a list of characters corresponding to the landmarks on the map A vehicle-mounted navigation device comprising:
The character screen control means performs a list display so as to update the display of characters corresponding to the landmark according to the vehicle position,
An in-vehicle navigation device characterized in that a range on a map for displaying a list of characters corresponding to the landmark can be set by a user instruction.   2. The in-vehicle navigation device according to claim 1, wherein when the list is displayed, control is performed so that characters corresponding to landmarks behind the vehicle position are deleted from the screen.   The in-vehicle navigation device according to claim 1, wherein when the list is displayed, control is performed so as to change a display color of a character corresponding to a landmark behind the vehicle position. The in-vehicle navigation device according to any one of claims 1 to 3, wherein characters corresponding to the landmarks are displayed in an order in which they appear on a map as the vehicle progresses.   The in-vehicle navigation device according to any one of claims 1 to 3, wherein characters corresponding to the landmark are displayed only for a selected genre.   The in-vehicle navigation device according to any one of claims 1 to 3, wherein a distance from the vehicle position to the landmark is displayed together with characters corresponding to the landmark.

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