JP2003269987A - In-vehicle navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an in-vehicle navigation device capable of effectively using the information of a character screen. <P>SOLUTION: In this navigation device comprising a map screen control means controlling to display a searched route and user's own vehicle position with a map, and a character screen control means controlling to list up and display marks corresponding to facilities of landmarks, the character screen control means controls to successively display the marks corresponding to the facilities of the landmarks on the forward of the user's own vehicle position in order of the route. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted navigation device having a map screen and a character screen, and more particularly to a device for effectively utilizing information from the character screen.

[0002]

2. Description of the Related Art In the map screen of the vehicle-mounted navigation device, roads are often colored on the displayed map for easy understanding. Not only road information but also landmarks such as family restaurants, convenience stores, and gas stations in the vicinity can be displayed on the map. Furthermore, when a route search is performed between the current location and the destination, the road to be guided is displayed on the map screen based on the guidance result. In addition, voice guidance is also provided at intersections that should pass. In addition, in order to make it easier to understand the landmarks displayed on the map in unguided land, the names of intersections and directions to be guided are listed in text on the character screen based on the route results. . In addition, IIS (Intergra
ted Information System) search to find tourist spots, gas stations, golf courses, family restaurants, convenience stores, etc. around the route by genre,
It is possible to display these results in text on the text screen. In other words, the IIS search is useful when you want to obtain information about the surrounding area on a land you do not know. It is disclosed that, in the navigation device, the searched facilities are simply arranged and displayed in the order of being closer to the vehicle position (Patent Document 1).
Further, it is disclosed that the facilities within a certain range are simply arranged and displayed in ascending order (Patent Document 2).

[Patent Document 1] Japanese Patent Laid-Open No. 5-197337

[Patent Document 2] Japanese Patent Laid-Open No. 7-55484

[0003]

By the way, a small road is not displayed on the map screen of the vehicle-mounted navigation device, and when a new road is provided, it is not displayed. Therefore, the route of the vehicle may deviate to a small road or a new road. If the intersections are continuous, the map display and voice display may not be enough to pass by. In this way, it is necessary to have information that the user has left the route to return to the original route as soon as he / she departs from the route, and it is necessary to give the information as soon as he / she passes without knowing which intersection has been passed. However, the conventional vehicle-mounted navigation device has a problem that it cannot provide such information. In addition, the IIS search is complicated in operation and cannot be operated during traveling, so that there is not much opportunity to use it.

Therefore, in view of the above problems, it is an object of the present invention to provide a vehicle-mounted navigation device which can provide appropriate information for a route out and a pass, and can effectively utilize an IIS search.

[0005]

In order to solve the above problems, a vehicle-mounted navigation device according to the present invention includes a map screen control means for controlling to display a searched route and a vehicle position together with a map, and a landmark. It is equipped with a character screen control means for controlling to display the symbols corresponding to the facilities of the above, and when the list is displayed by the symbols, the symbols corresponding to the facilities of the landmarks ahead of the vehicle position are displayed in the order of the route. To do. Further, the character screen control means, when displaying the list by symbols, displays only the symbols corresponding to the facilities of landmarks in front of the host vehicle and around the route. Further, the character screen control means deletes the display of the symbol corresponding to the facility of the landmark behind the vehicle position from the screen when the list is displayed by the symbol. Further, the character screen control means changes the display color of the character when displaying the list of the symbols and displaying the symbols corresponding to the landmark facility located behind the vehicle position. Further, the character screen control means has an operation means by which the user can set the range in which the symbols corresponding to the landmark facilities are displayed. Also,
The symbols corresponding to the landmark facilities are displayed in the order in which they appear as the route progresses. Further, the symbols corresponding to the landmark facilities are displayed only for the selected genre. Further, the distance from the vehicle position to the landmark is displayed along with the display of the symbol corresponding to the landmark facility. Since the list display is made with symbols in this way, it has an effect of being recognizable at a glance as compared with the display with characters. Also, since it is possible to recognize that the symbol display is deleted after passing, it can be determined that the route is proceeding smoothly. Further, for example, even if the passage at the previous intersection cannot be recognized, it can be determined later that the vehicle has definitely passed. On the contrary, if the intersection is not deleted after the passage, it can be determined that the vehicle deviates from the route before that.

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 while waiting for the signal at the intersection. A character screen is displayed when the host vehicle is stopped based on a stop signal of the side brake of the host vehicle or a vehicle speed pulse sensor. By this means, the character screen is automatically displayed while the vehicle is stopped, so that the deletion of the intersection display can be confirmed from the character screen, and the screen does not switch to the character screen during traveling, which is safe for driving.

Further, 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 is possible to confirm that the character display of the intersection is deleted from the character screen, and the driver can be notified of the confirmation information from the passenger,
You can drive more smoothly. The driver display and the passenger display display both the map screen and the character screen. By this means, passengers can also see the map, and the character display of the deleted character screen can be compared with the map.

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 effectively used. That is, the passenger can be provided with 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 the character screen for each genre so that the landmarks can 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 own vehicle is traveling can be confirmed, the vehicle does not travel backward, and the time required to reach the destination is not wasted.

A character display corresponding to a landmark which is outside a certain distance range from the vehicle position on the map is deleted from the character screen. By this means, there is no better way. The fixed distance is specified from the outside. By this means, it is useful in various cases to allow the user to set the situation depending on the situation such as when the road is slightly better or not. It can also be used depending on whether it is an empty suburb or a city.

[0011]

BEST MODE FOR CARRYING OUT 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 this figure, the navigation device 2 has a memory, inputs the position of the vehicle from a location section (not shown), and stores data such as a road map in a certain range around this position as a CD.
It is input from the ROM 1 and expanded in the above memory. The road map data developed as the vehicle position progresses is scrolled. In this way, the developed road map data is displayed on a display such as a liquid crystal display.

Further, 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 the map screen that displays the road map data and the like, and a character screen that controls the character screen that separately displays only the character information related to the display of the map screen. The control unit 2B is provided. Then, on the display 3, a map screen and a character screen are displayed alternatively.

Further, a remote controller 4 for controlling from the outside of the navigation device 2 is provided, and the remote control 4 can also switch between a map screen and a character screen. Remote controller 4
Besides, a touch panel, a pad, or the like may be used. Figure 2
3 is a diagram for explaining an example of the operation of the map screen control unit 2A that controls 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 vehicle is displayed on the road of the map screen, and landmarks around the route on which the vehicle is traveling, for example, a landmark of the restaurant at position (A) and an intersection at position (B). Landmark ○○○ (intersection name, for example, Toranomon 3-chome) is displayed.

At positions (C), (D), (E), and (F), landmarks of intersections, convenience stores, intersections, and gas stations are displayed. Here, the positions (A) and (B) are the positions where the vehicle has already passed, and the positions (C), (D), (E), and (F) are the positions to which the vehicle is going to proceed. As shown in FIG. 3, corresponding to the landmark of the map screen of FIG. 2, the character screen displays “ΔΔΔ restaurant” for the landmark of the restaurant at position (A).
The characters of the restaurant name are displayed as shown in.

Similarly, for the landmark at 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 landmark at the ○○ intersection, see “○○○ intersection…
The name of the intersection and the direction of travel, such as “go straight”, and the distance “L1” (the number of kilometers) from the vehicle are displayed in characters.

For the landmark of the convenience store at the position (D), the characters of the convenience store name such as "ΔΔΔ convenience store" and the distance "L2" from the vehicle are displayed. ○ at position (E)
For the landmark at the ○○ intersection, see “○○○ intersection…
The name of the intersection and the direction of travel, such as "turn left," and the distance "L3" from the vehicle are displayed in characters.

For the landmark of the gas station at the position (F), the characters of the gas station name such as “ΔΔΔ gas station” and the 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 on a golf course, and FIG. 8 is a diagram showing an example of character display only on a tourist resort.

As shown in FIGS. 4 to 8, the character screen control unit 2B classifies the characters into categories 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 the characters together with the number of kilometers. This character display is, for example, displayed in black on a white background.

FIG. 9 is a flow chart for explaining an example of a character display deletion operation by the character screen control unit 2B using an example of character display at an intersection. In step S1, it is determined whether the vehicle position is 300 m before the intersection. If this determination is "NO", return processing is performed. In the case of “NO”, it means that when the vehicle is traveling along the route, it is not yet 300 points before the intersection. Further, 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 should not come before 300. Means

In step S2, the above judgment is "YE
If “S”, the character display of the corresponding intersection is colored blue. In step S3, the vehicle position is 100m at the intersection.
Make a judgment as to whether it is in the foreground. If this determination is "NO", return processing is performed. In step S4, the above determination is “YE
If "S", the character display of the corresponding intersection is colored in red.

In step S5, it is determined whether the vehicle is passing through the intersection. If this determination is "NO", return processing is performed. In step S6, the above 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 this determination is "NO", return processing is performed.

In step S8, the above judgment is "YE
If "S", 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, it can be recognized that the color of the character display changes when approaching the intersection, the character display blinks during the passage, and the character display is deleted after the passage. In this case, it can be determined that the route is proceeding smoothly. . In this case, even if the passage at the previous intersection cannot be recognized, it can be determined later that the vehicle has definitely passed. On the contrary, if the color of the character display does not change even when approaching the intersection, the character display does not blink even while passing, and if the intersection is not deleted even when passing, it can be judged that it was off the route before that. become.

As described above, since it is possible to switch from the map screen to the character screen by the remote control 4, it is possible to safely and smoothly by changing from the running map screen to the character screen when waiting for a signal at an intersection. To
It is possible to obtain information about an out-of-route or passing an intersection. FIG. 10 is a modification of the vehicle-mounted navigation device of FIG. As shown in the figure, the navigation device 2 inputs stop information of the vehicle from the side brake or the 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 at a stop, a character screen is displayed, so that it is possible to reliably obtain information about an out-of-route or passing an intersection without waiting for a signal to operate the remote controller 4. You can

Further, 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.
It is safe because the map screen does not switch to the character display screen while driving. That is, the intersection can be confirmed by comparing the character screen with the map only when the vehicle is stopped.

FIG. 11 shows the display 3 of FIG. 1 or FIG.
It is a figure which shows the deformation | transformation. As shown in the 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 traveling, and the passenger display 3B can display a character screen even while the vehicle is traveling. A passenger can use the passenger display 3B to display a character screen even while traveling to judge whether the vehicle is off the route or passed an intersection. In this way, the driver and the passenger can obtain different information, so driving becomes safer and smoother. When the passenger sees the intersection ahead and informs the driver, the vehicle can travel reliably.

Further, both the driver display 3A and the passenger display 3B enable one-touch switching from the map screen to the character screen and vice versa. As a result, the passenger can further see the character information by comparing it with the map. The display contents can be switched by one-touch switching depending on whether the vehicle is running or stopped.

When the route search is performed, information about tourist spots, gas stations, golf courses, family restaurants, convenience stores, etc. around the route is read out, and information about the position of the own vehicle to travel 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 by displaying it in characters, it is possible to obtain information on the gas station and the like with one shot.

Further, the passenger display 3B may display detailed characters by genre, such as tourist spots, gas stations, golf courses, family restaurants, and convenience stores around the route. Each time these genres are switched to the remote controller 4, other pads, touch panels, or other changeover switches, the genre is switched to a tourist spot → gas station → golf course → family restaurant → convenience store. By using the IIS search described above, detailed information that becomes complicated when displayed on the map screen can be obtained, and a large amount of information can be utilized. By providing the passenger with text information, it becomes possible to obtain various kinds of information while traveling. Since it will be provided to passengers, there will be no obstacle to driving. The driver can obtain information about landmarks that are difficult to see through the passenger.

FIG. 12 is a diagram showing an example of deleting the character display on the character screen of the passenger display 3B from the list. As shown in the figure, the character display of the landmark behind in the traveling direction of the vehicle is deleted from the list of the character screen. In this way, along with the utilization of the character information, it is possible to determine the running location and the direction based on what remains on the character screen. There is no waste of time to reach the destination because the vehicle does not run backward and runs further.

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

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a vehicle-mounted 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 the display of a map screen on the display 3 of FIG.

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 showing an example of character display only at intersections.

FIG. 5 is a diagram showing an example of character display only for a restaurant.

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

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

FIG. 8 is a diagram showing an example of character display only for tourist destinations.

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

10 is a modified example of the vehicle-mounted navigation device of 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 of deleting the character display on the character screen of the fellow passenger display 3B from the list.

FIG. 13 is a diagram showing a modified example of FIG.

[Explanation of symbols]

2 ... Navigation device 2A ... Map screen control unit 2B ... Character screen control unit 3 ... Display 3A ... Display for driver 3B ... Display for passengers 4 ... Remote controller

Claims (11)

[Claims] 1. A map screen control means for controlling to display the searched route and own vehicle position together with a map, and a character screen control means for controlling to display a list of symbols corresponding to landmark facilities. In the navigation device, the character screen control means controls, when performing the list display, to display symbols corresponding to facilities of landmarks ahead of the own vehicle position in the order of the route. In-vehicle navigation device. 2. A map screen control means for controlling to display the searched route and own vehicle position together with a map, and a character screen control means for controlling to display a list of symbols corresponding to landmark facilities. In the navigation device, the character screen control means controls to display only a symbol corresponding to a landmark facility in front of the own vehicle position and around the route when displaying the list. In-vehicle navigation device. 3. A map screen control means for controlling to display the searched route and own vehicle position together with a map, and a character screen control means for controlling to display a list of symbols corresponding to facilities of landmarks around the route. In the navigation device, the character screen control means controls the display of a symbol corresponding to the facility of the landmark behind the vehicle position to be deleted from the screen when the list display is performed. In-vehicle navigation device. 4. A map screen control means for controlling to display the searched route and own vehicle position together with a map, and a character screen control means for controlling to display a list of symbols corresponding to facilities of landmarks around the route. In the navigation device including the, the character screen control means, when performing a list display, the display of the symbol corresponding to the facility of the landmark behind the vehicle position, to change the display color of the character An in-vehicle navigation device that is controlled to be controlled. 5. A map screen control means for controlling to display the searched route and own vehicle position together with a map, and a character screen for controlling to display a list of symbols corresponding to landmark facilities around the own vehicle position. A navigation device comprising a control means, wherein the character screen control means controls to display only a symbol corresponding to a facility of a landmark in front of the vehicle position when displaying the list. In-vehicle navigation device. 6. A map screen control means for controlling to display the searched route and own vehicle position together with a map, and a character screen for controlling to display a list of symbols corresponding to facilities of landmarks around the own vehicle position. A navigation device comprising a control means, wherein the character screen control means, when performing a list display, controls to delete the display of the symbol corresponding to the facility of the landmark behind the vehicle position from the screen. In-vehicle navigation device characterized by: 7. A map screen control means for controlling to display the searched route and own vehicle position together with a map, and a character screen for controlling to display a list of symbols corresponding to facilities of landmarks around the own vehicle position. A navigation device comprising a control means, wherein the character screen control means, when performing a list display, displays a symbol corresponding to a facility of a landmark behind the vehicle position, changes the display color of the character. An in-vehicle navigation device that is controlled as described above. 8. The character screen control means according to claim 5, wherein the character screen control means has an operation means by which a user can set a range in which a symbol corresponding to the landmark facility is displayed. In-vehicle navigation device. 9. The vehicle-mounted navigation device according to claim 1, wherein the symbols corresponding to the landmark facilities are displayed in the order in which they appear as the route progresses. 10. The vehicle-mounted navigation device according to claim 1, wherein the symbols corresponding to the landmark facilities are displayed only for the selected genre. 11. The in-vehicle navigation device according to claim 1, wherein the distance from the vehicle position to the landmark is displayed together with the display of the symbol corresponding to the landmark facility.