JPH1047988A - On-vehicle navigator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To profitably utilize information from a character screen. SOLUTION: The on-vehicle navigator which displays landmarks on a map at the periphery of a path together with its vehicle position through a path search is equipped with a map screen control part 2A which controls a map screen for displaying its vehicle position and landmarks on the map and a character screen control part 2B which displays intersections in the landmarks and their travel directions on a character screen with characters and deletes the displayed intersections and travel directions after its vehicle passes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle navigation device having a map screen and a character screen, and more particularly to an apparatus that beneficially uses information from a character screen.

[0002]

2. Description of the Related Art In a map screen of the above-mentioned navigation apparatus for a vehicle, roads are often colored on a displayed map so as to be easily understood. On the map, not only road information but also landmarks such as a family restaurant, a convenience store, and a gas station in the vicinity can be displayed. Further, when a route search is performed between the current position and the destination, a road to be guided based on the guidance result is displayed on the map screen. In addition, voice guidance is provided at an intersection to be passed. Based on the route result, the name of the intersection to be guided and the direction of the route are listed in characters on the character screen so that the landmarks displayed on the map can be more easily grasped in unfamiliar land. . In addition, IIS (Intergra
ted Information System) search to find sightseeing spots, gas stations, golf courses, family restaurants, convenience stores, etc., by genre,
It is possible to display these results in text on a text screen. In other words, the IIS search is useful when it is desired to obtain information on the surrounding land in an unknown land.

[0003]

By the way, on the map screen of the on-vehicle navigation device, a small road is not displayed, and when a new road is provided, it is not displayed. For this reason, the route of the vehicle may deviate on a small road or a new road. If intersections are continuous, they may pass by the map display or audio display alone in time. As described above, when the vehicle deviates from the route, it is necessary to provide information that the vehicle has deviated from the route in order to return to the original route. If the vehicle has passed without being able to recognize which intersection has passed, it is necessary to provide the information immediately. However, the conventional in-vehicle navigation device has a problem that such information cannot be given at all. Further, the IIS search has a problem that the operation is complicated and cannot be operated during traveling so that there is not much opportunity to use it.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an in-vehicle navigation device which can provide appropriate information for a deviated route or a passing route and which can effectively use an IIS search in view of the above problems.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to an in-vehicle navigation device which displays a plurality of landmarks around a route together with the position of the vehicle on a map based on a route search. A map screen control unit for controlling a map screen for displaying the own vehicle position and a plurality of landmarks on a map, and an intersection among the plurality of landmarks, a traveling direction displayed on a character screen by text, and the displayed intersection. A character screen control unit that deletes the traveling direction after the vehicle has passed. By this means, it can be recognized that the character display is deleted after passing, and in this case, it can be determined that the route is proceeding smoothly. By this means, even if the passing of the previous intersection cannot be recognized, it can be determined later that the vehicle has passed without fail. Conversely, if 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 or not the character display of the intersection has been deleted when waiting for the traffic light at the intersection. A character screen is displayed when the own vehicle is stopped based on a stop signal of the own vehicle's side brake or a vehicle speed pulse sensor. By this means, the character screen is automatically displayed while the vehicle is stopped, so that the display of the intersection can be confirmed to be deleted from the character screen.

Further, the vehicle 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 is possible to confirm that the character display of the intersection is deleted from the character screen, and to have the driver inform the driver of the confirmation information,
Driving can be performed more smoothly. The driver display and the passenger display display both the map screen and the text screen. By this means, the passenger can also see the map, and can compare the character display of the deleted character screen with the map.

[0008] A plurality of landmarks including genres of sightseeing spots, gas stations, golf courses, restaurants, and convenience stores are displayed in characters on a character screen displayed on the passenger display. By this means, the IIS search can be used effectively. That is, it is possible to give the passenger information on a tourist spot, a gas station, a golf course, a restaurant, and a convenience store while traveling. Since the passenger does not drive, there is no problem in driving.

The landmarks are divided into the plurality of genres, and the landmarks are displayed on a character screen for each genre so as to be switchable. By this means, the IIS search can be used more effectively. The character display corresponding to the landmark behind the position of the own vehicle 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 run backward, so that the time required to reach the destination is not wasted.

A character display corresponding to a landmark that is out of a predetermined distance range from the position of the vehicle on the map is deleted from the character screen. By this means there is no useless twist. The fixed distance is designated from outside. It is useful in various cases if this means allows the user to set according to the situation, such as when a little more road is allowed or not. It can also be used depending on whether it is in the suburbs or in the city.

[0011]

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 section (not shown), and stores a certain range of data such as a road map around the position on a CD.
The data is input from the ROM 1 and expanded in the memory. The road map data developed as the vehicle position progresses is scrolled. The developed road map data is displayed on a display such as a liquid crystal display.

Further, the navigation device 2 can search for an optimal route from the own vehicle position and the destination 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 separates and displays only character information related to the display of the map screen. A control unit 2B is provided. The display 3 displays a map screen and a character screen alternatively.

Further, a remote controller 4 for controlling the navigation apparatus 2 from outside is provided. The remote controller 4 can also switch between a map screen and a character screen. Remote controller 4
In addition, a touch panel, a pad, or the like may be used. FIG.
FIG. 3 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, and FIG. 3 controls the display of the character screen on the display 3 of FIG. It is a figure explaining an example of operation of character screen control part 2B. As shown in FIG. 2, the position of the own vehicle is displayed on the road on the map screen, and landmarks around the route on which the own vehicle runs, for example, a landmark of a restaurant at position (A) and an intersection at position (B) (The intersection name, for example, Toranomon 3-chome) is displayed.

At the positions (C), (D), (E) and (F), intersections, convenience stores, intersections and landmarks of 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 in FIG. 2, the character screen shows “△△△ restaurant” for the restaurant landmark at the position (A).
The restaurant name is displayed as follows.

Similarly, for the landmark of the XX intersection at the position (B), the name of the intersection and the traveling direction are displayed in characters, such as "XX intersection ... straight ahead". ○ at position (C)
For the landmarks of the XX intersection, please refer to the "XX intersection ...
The intersection name and the traveling direction, such as "straight ahead", and the distance "L1" (number of kilometers) from the own vehicle are displayed in characters.

For the convenience store landmark at the position (D), the characters of the convenience store name such as "@convenience store" and the distance "L2" from the vehicle are displayed in characters. ○ at position (E)
For the landmarks of the XX intersection, please refer to the "XX intersection ...
The intersection name and the traveling direction, such as "turn left", and the distance "L3" from the own vehicle are displayed in characters.

For the landmark of the gas station at the position (F), the character of the gas station name such as "@gas station" and the distance "L4" from the own vehicle are displayed in characters. FIG. 4 is a diagram showing an example of character display of only an intersection, FIG. 5 is a diagram showing an example of character display of only a restaurant, and FIG. 6 is a diagram showing an example of character display of only a gas station. FIG. 7 is a diagram showing an example of character display of only a golf course, and FIG. 8 is a diagram showing an example of character display of only a sightseeing spot.

As shown in FIG. 4 to FIG. 8, the character screen control unit 2B classifies according to genres, such as intersections, restaurants, gas stations, golf courses, and sightseeing spots, according to instructions from the remote controller 4. It is possible to list each name and display it with characters along with the number of kilometers. This character display is, for example, displayed in black on a white background.

FIG. 9 is a flowchart for explaining an example of a character display deleting operation by the character screen control unit 2B using a character display example of an intersection. In step S1, it is determined whether the vehicle position is 300 m before the intersection. If the determination is "NO", a return process is performed. In the case of "NO", when the vehicle is traveling along the route, it means that the vehicle has not yet come to 300 points before the intersection. When the vehicle is not traveling along the route, the navigation device 2 calculates the distance between the position of the vehicle and the next intersection. Means

In step S2, the above judgment is made that "YE
If "S", the character display of the corresponding intersection is colored blue. In step S3, the vehicle position is at the intersection 100m.
Make a judgment as to whether you are near. If the determination is "NO", a return process is performed. In step S4, the determination is "YE
If "S", the character display of the corresponding intersection is colored red.

In step S5, it is determined whether the vehicle is passing through the intersection. If the determination is "NO", a return process is performed. In step S6, the determination is "YE
If "S", the character display of the corresponding intersection blinks. In step S7, it is determined whether the vehicle has passed the intersection. If the determination is "NO", a return process is performed.

In step S8, the above judgment is made that "YE
If "S", the character display of the corresponding intersection is deleted. Instead of this deletion, this character display may be colored yellow or the display position column may be changed. Therefore, when approaching the intersection, the color of the character display changes, the character display blinks during 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 passing of the preceding intersection cannot be recognized, it can be determined later that the vehicle has passed without fail. Conversely, if the color of the character display does not change even when approaching the intersection, the character display does not blink while passing, and if the intersection is not deleted even after passing, it is possible to judge that you have deviated from the route before that become.

As described above, since the character screen can be switched from the map screen by the remote control 4, the character screen can be safely and smoothly changed from the running map screen to the character screen when waiting for a traffic light at an intersection. To
It is possible to obtain information of a departure from a route or passing an intersection. FIG. 10 is a modified example of the vehicle-mounted navigation device of FIG. As shown in the figure, the navigation device 2 inputs vehicle stop information from a side brake or a vehicle speed pulse sensor 5. In the navigation device 2, the map screen is switched to the character screen based on the vehicle stop information. In this way, when the vehicle is stopped, the character screen is displayed, so that it is possible to reliably obtain the information of the departure from the route or the passing of the intersection without operating the remote controller 4 at a traffic light or the like. Can be.

The switching of the remote controller 4 may be enabled only when there is vehicle stop information from the side brake and the vehicle speed pulse sensor 5.
While driving, it is safe because the map screen does not switch to the character display screen. That is, the intersection can be confirmed by comparing the character screen with the map only during the stop.

FIG. 11 shows the display 3 of FIG. 1 or FIG.
It is a figure which shows the deformation of. As shown in this figure, two driver displays 3 connected to the navigation device 2
A and a passenger display 3B are provided. The driver display 3A can display only a map screen while the vehicle is running, and the passenger display 3B can display a character screen while the vehicle is running. The passenger can use the display 3B for the passenger to display a character screen even while driving, and determine whether the vehicle is off the route or passing an intersection. As described above, since the driver and the passenger can obtain different information, driving becomes safer and smoother. The passenger can look at the intersection ahead and tell the driver to drive the vehicle more reliably.

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. This allows the passenger to view the character information in combination with the map. The display contents can be switched by one-touch switching depending on whether the vehicle is running or stopped.

When a route search is performed, information on sightseeing spots, gas stations, golf courses, family restaurants, convenience stores, and the like around the route is read out, and information on the vicinity of the position of the own vehicle is displayed on the passenger display 3B. Is displayed in characters. In this way, for example, it is difficult to see information other than the route on the map, but it is possible to obtain information on the gas station or the like with a single shot by displaying the information in characters.

Further, on the passenger display 3B, detailed characters may be displayed for each genre of sightseeing spots, gas stations, golf courses, family restaurants, convenience stores, etc., around the route. These genres are switched in the order of sightseeing spot → gas station → golf course → family restaurant → convenience store every time a changeover switch such as the remote controller 4 or other pad or touch panel is pressed. Note that, by using the above-described IIS search, it is possible to obtain detailed information that is complicated when displayed on a map screen, and a large amount of information can be used. By providing the passenger with the character information, various kinds of information can be obtained during traveling. There is no problem in driving because it is provided to passengers. The driver can obtain information of the landmark which is difficult to see through the fellow passenger.

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 the figure, the character display of the landmark behind the traveling direction of the own vehicle is deleted from the list of the character screen. In this way, the running location and direction can be determined from the information remaining on the character screen while utilizing the character information. There is no need to run backwards, so there is no waste in the time to reach the destination.

FIG. 13 is a diagram showing a modification of FIG.
As shown in the figure, landmarks within a circle having a constant radius centered on the position of the vehicle are displayed on the character screen as characters. When the character deviates from the circle, the character display is deleted from the character screen. If it enters the circle, it will be displayed additionally. As above, there is no useless way. Further, the radius may be set freely by the user. It is useful in various situations to allow the user to set according to the situation, such as when a little more road is allowed or not. For example, it can be used properly depending on whether there is nothing in the suburbs or in the city.

[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 illustrating an example of an operation of a map screen control unit 2A that controls display of a map screen on a display 3 of FIG.

3 is a diagram illustrating an example of an operation of a character screen control unit 2B that controls the display of a character screen on the display 3 of FIG.

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 restaurants.

FIG. 6 is a diagram showing an example of character display of only a gas station.

FIG. 7 is a diagram showing an example of character display of only a golf course.

FIG. 8 is a diagram showing an example of character display of only a sightseeing spot.

FIG. 9 is a flowchart illustrating an example of a character display deletion operation using a character display example of an intersection by a character screen control unit 2B.

FIG. 10 is a modified example of the in-vehicle navigation device of FIG. 1;

FIG. 11 is a diagram 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.

FIG. 13 is a diagram showing a modification of FIG.

[Explanation of symbols]

 2 Navigation device 2A Map screen control unit 2B Character screen control unit 3 Display 3A Driver display 3B Passenger display 4 Remote controller

Claims (10)

[Claims] 1. An on-vehicle navigation device for displaying, on a map, a plurality of landmarks around a route together with an own vehicle position based on a route search, a map screen displaying the own vehicle position and a plurality of landmarks on a map. And a character screen control unit that displays the intersection in the plurality of landmarks and the traveling direction on the character screen in characters, and deletes the displayed intersection and the traveling direction after the vehicle passes. An in-vehicle navigation device, comprising: 2. The in-vehicle navigation device according to claim 1, wherein the map screen and the character screen are switched with one touch. 3. When the own vehicle is stopped based on a stop signal of a side brake or a vehicle speed pulse sensor of the own vehicle,
The in-vehicle navigation device according to claim 1, wherein a character screen is displayed. 4. The in-vehicle navigation device according to claim 1, further comprising a driver display for displaying the map screen and a passenger display for displaying the character screen. 5. The in-vehicle navigation device according to claim 4, wherein the driver display and the passenger display both display the map screen and the character screen. 6. A plurality of landmarks including genres of sightseeing spots, gas stations, golf courses, restaurants, and convenience stores are displayed in characters on a character screen displayed on the passenger display.
2. The in-vehicle navigation device according to claim 1. 7. The on-vehicle navigation device according to claim 6, wherein the landmark is divided into the plurality of genres, and the landmark is displayed on a character screen for each genre so that the landmark can be switched. 8. The on-vehicle navigation device according to claim 7, wherein a character display corresponding to a landmark located behind a position of the vehicle on a map is deleted from the character screen. 9. The on-vehicle navigation device according to claim 7, wherein a character display corresponding to a landmark which is out of a predetermined distance range from a position of the own vehicle on a map is deleted from the character screen. . 10. The in-vehicle navigation device according to claim 9, wherein the fixed distance is designated from outside.