JP3886468B2 - 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 around the route, gas stations, golf courses, family restaurants, convenience stores, etc. 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.
In the navigation device, it is disclosed that the searched facilities are simply arranged and displayed in order from the closest to the vehicle position (Patent Document 1).
In addition, it is disclosed that facilities within a certain range are simply arranged and displayed in order of closeness (Patent Document 2).
[Patent Document 1]
JP-A-5-197337 [Patent Document 2]
Japanese Patent Laid-Open No. 7-55484
[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]
In order to solve the above-described problem, the vehicle-mounted navigation device according to the present invention displays a map screen control means for controlling to display a route searched with a map and the vehicle position, and a list of symbols corresponding to landmark facilities. And a character screen control means for performing control, and when displaying a list with symbols, the symbols corresponding to the landmark facilities ahead of the vehicle position are displayed in the order of the route.
In addition, when displaying the list with symbols, the character screen control means displays only symbols corresponding to landmark facilities in front of the vehicle position and around the route.
In addition, when displaying the list with symbols, the character screen control means deletes the symbol display corresponding to the landmark facility behind the vehicle position from the screen.
Further, when the character screen control means displays a list of symbols, the display of the symbol corresponding to the landmark facility behind the vehicle position changes the display color of the character.
The character screen control means includes an operation means that allows the user to set a range for displaying symbols corresponding to the landmark facilities.
The symbols corresponding to the landmark facilities are displayed in the order in which they appear as the route progresses.
In addition, the symbols corresponding to the landmark facilities are displayed only for the selected genre.
In addition to the display of symbols corresponding to the landmark facilities, the distance from the vehicle position to the landmark is displayed.
Since the list is displayed with symbols in this way, it has an effect that can be recognized at a glance as compared with the display with characters.
Moreover, since it can be recognized that the symbol display is deleted after passing, it can be determined that the route is proceeding smoothly. For example, even if the previous intersection cannot be recognized, it can be determined later that the vehicle has definitely passed. On the contrary, when the intersection is not deleted after passing, it can be determined that the vehicle has deviated from the route before that.
[0006]
The map screen and the character screen are switched with one touch. By this means, it is possible to confirm whether the character display at the intersection has been deleted when waiting for a signal at the intersection.
A character screen is displayed when the host vehicle is stopped based on the stop signal of the host vehicle's side brake or the vehicle speed pulse sensor. Since the character screen is automatically displayed while the vehicle is stopped by this means, it is possible to confirm the deletion of the intersection display from the character screen, and it is safe for driving because the character screen is not switched during traveling.
[0007]
Furthermore, it has a driver display for displaying the map screen and a passenger display for displaying the character screen. By this means, when there is a passenger, it can be confirmed that the character display at the intersection is deleted from the character screen, and the driver can be notified of the confirmation information from the passenger so that the driving can be performed more smoothly.
The driver display and the passenger display display both the map screen and the character screen. By this means, the passenger can also see the map and check the character display of the deleted character screen against the map.
[0008]
On the character screen displayed on the passenger display, a plurality of landmarks including genres of tourist spots, gas stations, golf courses, restaurants, and convenience stores are displayed in characters. By this means, the IIS search can be used effectively. That is, information on sightseeing spots, gas stations, golf courses, restaurants, and convenience stores can be given to passengers while traveling. Passengers do not drive, so there is no problem with driving.
[0009]
The landmarks are divided into the plurality of genres, and the landmarks are displayed on the character screen for each genre so as to be switched. By this means, the IIS search can be used more effectively.
The character display corresponding to the landmark behind the vehicle position on the map is deleted from the character screen. By this means, the place where the vehicle is traveling can be confirmed, and the vehicle does not travel backward, so that the time to reach the destination is not wasted.
[0010]
The character display corresponding to the landmark that is outside the certain distance range from the vehicle position on the map is deleted from the character screen. By this means, there is no useless way. The fixed distance is designated from the outside. If this means allows the user to set according to the situation, such as when some more roads are allowed or not, it will be useful in various cases. It can also be used depending on whether it is a suburban area or a town.
[0011]
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.
[0012]
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.
[0013]
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.
[0014]
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.
A restaurant name character such as “ΔΔΔ restaurant” is displayed for the landmark of the restaurant at the position (A).
[0015]
Similarly, for the landmark of the XX intersection at position (B), the name of the intersection and the traveling direction are displayed 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.
[0016]
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 vehicle are displayed.
For the landmark of the XX intersection at the position (E), the intersection name and traveling direction are displayed as characters, such as "XX intersection ... left turn", and the distance "L3" from the host vehicle is displayed in characters. .
[0017]
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 vehicle are displayed.
4 is a diagram showing an example of character display only at an intersection, FIG. 5 is a diagram showing an example of character display only at a restaurant, and FIG. 6 is a diagram showing an example of character display only at a gas station. 7 is a diagram showing an example of character display only for a golf course, and FIG. 8 is a diagram showing an example of character display only for a sightseeing spot.
[0018]
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 with the number of kilometers. This character display is, for example, displayed in black on a white background.
[0019]
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.
[0020]
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.
[0021]
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.
[0022]
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 when 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.
[0023]
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.
[0024]
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.
[0025]
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.
[0026]
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.
[0027]
When the route search is performed, information such as sightseeing spots around the route, gas stations, golf courses, family restaurants, convenience stores, etc. is 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.
[0028]
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.
[0029]
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.
[0030]
FIG. 13 shows a modification of FIG. As shown in the figure, landmarks within a circle with a certain radius centered on the position of the vehicle 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.
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 on the display 3 of FIG. 1;
3 is a diagram for explaining an example of the operation of a character screen control unit 2B that controls display of a character screen on the display 3 of FIG. 1;
FIG. 4 is a diagram illustrating an example of character display of only an intersection.
FIG. 5 is a diagram showing an example of character display of only a restaurant.
FIG. 6 is a diagram showing an example of character display only for a gas station.
FIG. 7 is a diagram showing an example of character display only for a golf course.
FIG. 8 is a diagram illustrating an example of character display of only a sightseeing spot.
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 showing an example in which the character display on the character screen of the passenger display 3B is deleted from the list.
13 is a diagram showing a modification of FIG.
[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 (3)

A route search means for obtaining a route to the target position;
Map screen control means for controlling to display the route searched with the map and the vehicle position;
Character screen control means for controlling to display a list of symbols corresponding to the character information together with character information corresponding to the landmark facility specified by the route,
The character screen control means controls to add the character information and symbol list display according to the progress of the vehicle position, and deletes the character information and symbol list display located behind the vehicle. An in-vehicle navigation device characterized by being followed.   The in-vehicle navigation device according to claim 1, wherein the character screen control means displays only a list corresponding to symbols of the same genre.   The in-vehicle navigation device according to claim 1 or 2, wherein the character screen control means displays a distance from the vehicle position.

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