JP7275294B2 - MAP DISPLAY CONTROL DEVICE AND MAP DISPLAY CONTROL METHOD - Google Patents

Description

The present invention relates to a map display control device for displaying a map on a display device.

Map display devices that display a map on the screen of the display device are widely applied to, for example, navigation devices and smartphones having map display applications. Further, in recent years, against the background of higher performance of map display devices and higher accuracy of map data, map display devices capable of displaying a three-dimensional map using map data of a three-dimensional model have become popular.

In addition, Patent Document 1 below discloses a vehicle display device capable of indicating the direction of a specific feature (landmark, etc.) based on the position of the vehicle.

JP 2017-118486 A

A user of the map display device can specify a specific feature of interest (hereinafter referred to as "specific feature") to display a map around the specific feature on the screen of the display device. , it is possible to recognize the positional relationship between the current position of itself and the specific feature. However, even if the user looks around and looks for a specific feature, the specific feature may not always be visible depending on the surrounding terrain and the positions of buildings. Searching for a specific feature in a place where the specific feature cannot be seen is a waste of effort. In particular, when the user is a driver of a vehicle, searching for specific features unnecessarily increases the driving load.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a map display control device capable of showing a user a place where a specific feature can be visually recognized.

A map display control apparatus according to the present invention includes a specific feature storage unit that stores specific features designated by a user, a map data acquisition unit that acquires map data including information on the specific features, and a section classification processing for classifying roads included in map data into specific feature visible sections, which are sections in which specific features are visible, and specific feature invisible sections, which are sections in which specific features are not visible. and display control for displaying on a display device a map showing specific feature visible sections and specific feature invisible sections of the road in different display modes based on the map data and the results of the section classification processing. The section classification section performs section classification processing in consideration of the user's visual field range at each point on the road .

According to the map display control device of the present invention, the user can know in advance the places where the specific feature can be visually recognized. Therefore, the user is prevented from wastefully searching for the specific feature in a place where the specific feature cannot be seen.

Objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description and accompanying drawings.

1 is a diagram showing a configuration of a map display control device according to Embodiment 1; FIG. FIG. 4 is a diagram showing an example of a map based on map data; 4 is a diagram showing an example of a map displayed by the map display control device according to Embodiment 1; FIG. 4 is a flow chart showing the operation of the map display control device according to Embodiment 1; 4 is a diagram showing an example of a map displayed by the map display control device according to Embodiment 1; FIG. FIG. 10 is a diagram showing the configuration of a navigation system including a map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 2; FIG. 9 is a flow chart showing the operation of the map display control device according to Embodiment 2; FIG. 10 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of an additional image displayed by the map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of an additional image displayed by the map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of an additional image displayed by the map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of an additional image displayed by the map display control device according to Embodiment 2; FIG. FIG. 10 is a diagram showing an example of an additional image displayed by the map display control device according to Embodiment 2; FIG. 1 is a diagram showing a visual field range of a user who is a driver of a vehicle; FIG. FIG. 12 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 3; FIG. FIG. 3 is a diagram showing a visual field range for each visibility level of a user who is a driver of a vehicle; FIG. 12 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 3; FIG. FIG. 12 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 3; FIG. FIG. 4 is a diagram showing an example of a map based on map data; FIG. 13 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 4; FIG. FIG. 13 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 4; FIG. FIG. 13 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 4; FIG. FIG. 13 is a diagram showing an example of a map displayed by a map display control device according to Embodiment 4; FIG. It is a figure which shows the hardware structural example of a map display control apparatus. It is a figure which shows the hardware structural example of a map display control apparatus.

<Embodiment 1>
FIG. 1 is a diagram showing the configuration of a map display control device 10 according to Embodiment 1. As shown in FIG. As shown in FIG. 1, the map display control device 10 is connected to a map data storage device 21, a display device 22 and an operation input device 23. FIG.

The map data storage device 21 is a storage medium storing map data. The map data stored in the map data storage device 21 is three-dimensional map data including not only information on the two-dimensional positions of features such as roads and buildings, but also information on the elevation of land and the height of features. be.

The display device 22 is means for the map display control device 10 to display a map, and is composed of, for example, a liquid crystal display device. The operation input device 23 is a user interface that receives a user's operation on the map display control device 10 . The user uses the operation input device 23 to set, for example, the range of the map to be displayed on the display device 22 (hereinafter referred to as "map display range"), or to designate an interesting feature as a specific feature. can do. In this embodiment, the display range of the map is set by the user specifying the center point of the display range of the map and the scale of the map.

Note that the map data storage device 21 , the display device 22 and the operation input device 23 may be incorporated in the map display control device 10 . Also, the map data storage device 21 may be configured as a server that distributes map data to the map display control device 10 through a communication network such as the Internet. The operation input device 23 may be hardware such as a keyboard, push button, operation lever, or touch pad, or software keys displayed on the screen. For example, the display device 22 may display software keys as the operation input device 23, in which case the operation input device 23 and the display device 22 may be configured as one touch panel.

The map display control device 10 displays a map based on the map data stored in the map data storage device 21 on the display device 22 according to the user's operation input to the operation input device 23 . As shown in FIG. 1, the map display control device 10 includes a specific feature storage unit 11, a map data acquisition unit 12, a section classification unit 13, and a display control unit .

The specific feature storage unit 11 stores specific features specified by the user. The map data acquisition unit 12 acquires the display range of the map set by the user and the map data of the vicinity thereof from the map data storage device 21 . When a specific feature is positioned within or near the display range of the map, the map data acquired by the specific feature storage unit 11 includes information on the specific feature.

Based on the map data acquired by the map data acquisition unit 12, the section classification unit 13 divides the roads included in the map data into specific feature visible sections, which are sections in which specific features can be visually recognized, and specific feature visible sections. It is classified as a specific feature invisible section, which is an impossible section. Since the map data stored in the map data storage device 21 is three-dimensional map data including information on land elevations and heights of features, the section classification unit 13 classifies road elevations and locations of specific features. whether a particular feature is visible from each point on the road, based on the altitude of the road, the size and height of the particular feature, the height of the land or feature that exists between the road and the particular point, i.e. , it is possible to determine whether or not land or features obstruct each point on the road and a specific feature. Hereinafter, the process of classifying the road into the specific feature visible section and the specific feature invisible section is referred to as "section classification processing".

In the section classification process, "visible specific feature" does not necessarily mean that the entire specific feature is visible. For example, it may be defined that "a specific feature is visible" including a state in which only a portion of the specific feature is visible and a state in which a certain percentage or more of the specific feature is visible. Also, the definition of "a specific feature is visible" may be changed for each specific feature or for each type of specific feature. For example, if the specific feature is a pagoda with a distinctive roof shape, it may be determined that "the specific feature is visible" when the roof of the pagoda is visible.

The display control unit 14 displays a map corresponding to the map data acquired by the map data acquisition unit 12 on the screen of the display device 22 . At this time, based on the result of the section classification processing by the section classification section 13, the display control unit 14 divides the specific feature visible section and the specific feature invisible section of the road so that the user can distinguish between the specific feature visible section and the specific feature invisible section. The specific feature invisible section is displayed in different display modes.

Any method can be used to change the display mode between the specific feature visible section and the specific feature invisible section on the map. For example, the thickness and color of the road line (road line) may be changed between the specific feature visible section and the specific feature invisible section, or one of the specific feature visible section and the specific feature invisible section may be changed. may be animated (for example, blinking).

The operation of the map display control device 10 will be described below while showing a specific example of the map displayed on the display device 22 by the display control section 14 . Here, it is assumed that the map data acquisition unit 12 has acquired map data of a map such as that shown in FIG. The map of FIG. 2 includes roads RD1, RD2 and RD3, mountains M1 and M2, buildings B1, B2, B3 and B4, and a pagoda PG standing halfway up the mountain M2. The roads RD1 and RD2 are connected at an intersection X1, and the roads RD1 and RD3 are connected at an intersection X2. Road RD3 extends from intersection X2 to pagoda PG.

It is also assumed that the user of the map display control device 10 designates the pagoda PG as a specific feature, and that the specific feature storage unit 11 stores information on the pagoda PG.

Points P0 to P6 are defined on the road RD1. The point P0 is the intersection of the road RD1 and the bottom edge of the map, and the point P6 is the intersection of the road RD1 and the top edge of the map. That is, the display area of the map includes the section (section P0-P6) between the point P0 and the point P6 on the road RD1. The section (section P0-P1) between the point P0 and the point P1 is a section where the pagoda PG cannot be visually recognized because it is blocked by the slope of the mountain M2. A section (section P1-P3) between the point P1 and the point P3 is a section where the pagoda PG can be visually recognized from the south side. A point P2 in the section P1-P3 is a point where the pagoda PG can be seen right beside the road RD1. That is, the angle between the direction in which the pagoda PG can be seen from the point P2 and the tangential direction of the road RD1 at the point P2 is 90°. A section (section P3-P4) between the point P3 and the point P4 is a section where the pagoda PG cannot be visually recognized because it is blocked by the buildings B1, B2, and B3. A section (section P4-P5) between the point P4 and the point P5 is a section where the pagoda PG can be visually recognized from the east side. A section (section P5-P6) between the point P5 and the point P6 is a section where the pagoda PG cannot be visually recognized because of the obstruction by the building B4.

Points Q0 to Q2 are defined on the road RD2. The point Q0 is the intersection of the road RD2 and the bottom edge of the map, and the point Q2 is the intersection of the road RD2 and the top edge of the map. That is, the display area of the map includes the section (section Q0-Q2) between the point Q0 and the point Q2 on the road RD2. A section (section Q0-Q1) between the point Q0 and the point Q1 is a section where the pagoda PG can be visually recognized. A section (section Q1-Q2) between the point Q1 and the point Q2 is a section where the pagoda PG cannot be visually recognized due to the obstruction by the mountain M2. In addition, the pagoda PG can be visually recognized from any place on the road RD3.

In such a case, the section classification unit 13 classifies the section P1-P3 and the section P4-P5 of the road RD1 into specific feature visible sections in which the specific feature (pagoda PG) is visible, and the section P0- P1, the section P3-P4, and the section P5-P6 are classified as specific feature invisible sections in which the specific feature is invisible. Further, the section classification unit 13 classifies the section Q0-Q1 as the specific feature visible section and the section Q1-Q2 as the specific feature invisible section for the road RD2. Further, the section classification unit 13 classifies all sections of the road RD3 into specific feature visible sections.

When displaying the map on the display device 22, the display control unit 14, for example, as shown in FIG. - Q1, the display mode of all sections of road RD3, and the display of sections P0-P1, sections P3-P4 and sections P5-P6 of road RD1 and sections Q1-Q2 of road RD2 classified as specific feature invisible sections and are different from each other. Here, the thickness of the road line in the specific feature visible section is made thicker than the road line in the specific feature invisible section, and the color of the road line in the specific feature visible section is changed to the color of the road line in the specific feature invisible section. making it different. By displaying the map as shown in FIG. 3 on the display device 22, the user can know in advance where the pagoda PG, which is the specific feature, can be visually recognized. Therefore, the user is prevented from wastefully searching for the specific feature in a place where the specific feature cannot be seen.

In FIG. 3, symbols such as “P1” and “Q1” are shown for convenience of explanation, but these symbols need not be displayed on the map displayed on the display device 22. This also applies to the map display examples shown below.

Next, the operation of the map display control device 10 according to Embodiment 1 will be described with reference to the flowchart of FIG. When the map display control device 10 is activated and the user designates a specific feature using the operation input device 23, the specific feature storage unit 11 stores the specific feature (step ST101). Further, when the user uses the operation input device 23 to specify the center point and scale of the map to be displayed, the display control unit 14 sets the display range of the map (step ST102), and the map data acquisition unit 12 sets the display range. Map data of the displayed range and its vicinity are obtained (step ST103).

After that, based on the map data acquired by the map data acquisition unit 12, the section classification unit 13 performs a section classification process for classifying roads included in the map data into specific feature visible sections and specific feature invisible sections ( step ST104). Then, the display control unit 14 displays a map (a map corresponding to the map data acquired by the map data acquisition unit 12) showing the specific feature visible section and the specific feature invisible section in different display modes from each other, on the display device 22. (step ST105).

After that, the process returns to step ST102 and waits for the user's operation. For example, when the user performs an operation to scroll the map or perform an operation to change the scale of the map to change the display range of the map, steps ST102 to ST105 are executed and displayed on the display device 22. Map is updated.

Any method may be used for the user to specify the specific feature. For example, the user may specify the specific feature by inputting the location (address) of the specific feature, or the display control unit 14 may display a map on the display device 22 in advance, and the user may specify the feature on the map. A feature may be specified.

The method by which the user designates the center point of the display range of the map may be the same method as for designation of the specific feature. Further, as in Embodiment 2 described later, when the map display control device 10 can acquire the user's current position, for example, the user's current position (or a position a certain distance ahead of the user's current position) can be displayed on the map. The display control unit 14 may automatically set the display range of the map based on the user's current position, such as by setting the center point of the display range.

In the above description, the map data stored in the map data storage device 21 is three-dimensional map data, but two-dimensional map data that does not include height information of land and features may also be used. When two-dimensional map data is used, the section classification unit 13 estimates the height of land and features from the attribute information (for example, buildings, mountains, etc.) included in the map data, and performs section classification processing. be able to. For example, the height of a building may be assumed to be several tens of meters and the height of a mountain to be several hundred meters, or the height of a building or mountain may be assumed to be infinite. Of course, if information about the height of a feature is included as attribute information of the feature in the two-dimensional map data, that information may be used. When two-dimensional map data is used, the accuracy of the section classification process is lowered, but the storage capacity required for the map data storage device 21 can be reduced, which contributes to cost reduction.

Also, two-dimensional map data and three-dimensional map data may be used separately. For example, when the map display control device 10 is installed in a vehicle, the map data storage device 21 in the vehicle, which has a limited storage capacity, stores two-dimensional map data with a relatively small amount of data, and 3D map data with a large amount of data is stored. The dimensional map data may be obtained by communication from a server outside the vehicle by the map display control device 10 as necessary.

[Change example]
In FIG. 3, the display mode of the road line itself in the specific feature visible section is changed, but for example, as shown in FIG. By displaying an auxiliary line indicating , the display mode of the specific feature visible section may be changed. At this time, it is preferable to make the auxiliary line along the specific feature side of the road line. Thereby, the user can grasp which side of the road the specific feature can be seen. This effect is particularly effective when the user scrolls the map so that the specific feature is outside the display range of the map.

<Embodiment 2>
Embodiment 2 shows an example in which the map display control device 10 is applied to a navigation system. FIG. 6 is a diagram showing the configuration of a navigation system 30 according to Embodiment 2. As shown in FIG. In the present embodiment, it is assumed that the navigation system 30 is installed in a vehicle, and hereinafter, the vehicle in which the navigation system 30 is installed, that is, the vehicle in which the user of the navigation system 30 boarded is referred to as "own vehicle". However, the navigation system 30 may be for pedestrians.

As shown in FIG. 6 , the navigation system 30 includes a map display control device 10 , a map data storage device 21 , a display device 22 , an operation input device 23 , a positioning device 24 and a planned travel route setting section 25 . The map data storage device 21, the display device 22, and the operation input device 23 are the same as those shown in FIG. 1, so description thereof will be omitted.

The positioning device 24 uses positioning signals received from GNSS (Global Navigation Satellite System) satellites such as GPS (Global Positioning System) satellites to calculate the current position of the host vehicle, that is, the current position of the user. The positioning device 24 increases the accuracy of calculation of the current position of the vehicle by, for example, autonomous navigation using a camera or sensor mounted on the vehicle or map matching technology using the map data stored in the map data storage device 21. processing may be performed.

The planned traveling route setting unit 25 calculates a recommended route from the current position of the vehicle calculated by the positioning device 24 to the destination set by the user, and uses the calculated recommended route as the planned traveling route of the own vehicle, that is, the user's route. Set the planned passage route. If the user has not set a destination, the planned travel route setting unit 25 estimates a route that the vehicle will pass based on, for example, the travel history of the vehicle, and sets the estimated route as the planned travel route. may

The map display control device 10 displays a map based on the map data stored in the map data storage device 21 according to the user's operation input to the operation input device 23 or the current position of the own vehicle measured by the positioning device 24. 22.

As shown in FIG. 6, the map display control device 10 of the second embodiment includes the specific feature storage unit 11, the map data acquisition unit 12, the section classification unit 13, and the display control unit 14 shown in the first embodiment. A position information acquisition unit 15 for acquiring the current position of the own vehicle calculated by the positioning device 24 and a route information acquisition unit 16 for acquiring the planned travel route of the own vehicle set by the planned travel route setting unit 25 are provided. The operations of the specific feature storage unit 11, the map data acquisition unit 12, and the section classification unit 13 are the same as those in the first embodiment, so descriptions thereof will be omitted.

The display control unit 14 displays a map corresponding to the map data acquired by the map data acquisition unit 12 on the screen of the display device 22 . At this time, the display control unit 14 displays the specific feature visible section and the specific feature invisible section of the road in different display modes. In the second embodiment, the display control unit 14 further changes the display mode (thickness, color, etc. of the road line) of the planned travel route so that the planned travel route of the host vehicle can be distinguished from other roads. Make it different from the display mode of the road. The display control unit 14 also superimposes an icon indicating the current position of the vehicle on the map displayed on the display device 22 .

For example, when the current position of the vehicle is on the road RD1 and the planned travel route of the vehicle is the road RD1, the display control unit 14 displays the current position of the vehicle on the map as shown in FIG. A triangular icon SV is displayed, and the road line of the road RD1, which is the planned travel route of the vehicle, is made thicker than the other roads. Note that when the planned travel route of the own vehicle is not set, the planned travel route of the own vehicle is not displayed as shown in FIG. are the same thickness). Further, the display mode (color, size, shape, etc.) of the vehicle icon SV may be changed depending on whether the current position of the vehicle is in the specific feature visible section or the specific feature invisible section.

Further, in Embodiment 2, the display control unit 14 sets the display range of the map based on the current position of the host vehicle. For example, the display control unit 14 sets the current position of the vehicle or a position a certain distance ahead of the current position of the vehicle as the center point of the display range of the map, so that the current position of the vehicle becomes the display range of the map. may be included in Furthermore, the display control unit 14 scrolls the map displayed on the display device 22 according to changes in the current position of the vehicle so that the current position of the vehicle is always within the display range of the map. good.

According to the map display control device 10 according to the second embodiment, the map displayed on the display device 22 includes not only the specific feature visible section, but also the current position of the vehicle as the current position of the user, The planned travel route of the own vehicle can be displayed as the planned route. By displaying the user's current position on the map, the user can grasp whether the current position is within the specific feature visible section, that is, whether the specific feature can be seen from the current position. In addition, by displaying the route through which the user is expected to pass on the map, the user can grasp whether or not the specific feature can be seen from the route through which the user will pass. Therefore, the user is prevented from wastefully searching for the specific feature in a place where the specific feature cannot be seen.

Next, the operation of the map display control device 10 according to Embodiment 2 will be described with reference to the flowchart of FIG. When the map display control device 10 is activated and the user designates a specific feature using the operation input device 23, the specific feature storage unit 11 stores the specific feature (step ST201). Further, the route information acquisition unit 16 acquires information on the planned travel route of the host vehicle set by the planned travel route setting unit 25 (step ST202).

Further, the position information acquisition unit 15 acquires information on the current position of the host vehicle calculated by the positioning device 24 (step ST203). Display control unit 14 sets the display range of the map based on the current position of the vehicle (step ST204). The map data acquisition unit 12 acquires map data of the set display range and its vicinity (step ST205).

After that, based on the map data acquired by the map data acquisition unit 12, the section classification unit 13 performs a section classification process for classifying roads included in the map data into specific feature visible sections and specific feature invisible sections ( step ST206). Then, the display control unit 14 displays a map showing the specific feature visible section and the specific feature invisible section in different display modes on the display device 22 (step ST207). At this time, if the planned travel route of the own vehicle is set, the display control unit 14 changes the display mode of the planned travel route to other roads so that the planned travel route of the own vehicle can be distinguished from other roads. be different from the display mode of

Furthermore, the display control unit 14 superimposes an icon indicating the current position of the vehicle on the map displayed on the display device 22 (step ST208).

After that, the process returns to step ST203, and when the current position of the host vehicle is updated, steps ST203 to ST208 are executed, and the map displayed on the display device 22 is updated.

When the user scrolls the map, it is preferable to set the display range of the map independently of the current position of the vehicle as in the first embodiment.

In the present embodiment, an example in which the navigation system 30 is installed in a vehicle in which the user boards is shown. You can also use public transportation such as Also, the vehicle in which the user rides is not limited to an automobile, and may be, for example, a railroad train. When the vehicle is a railroad train, the map display control device 10 classifies the railroad track, which is the scheduled running route of the train, into a specific feature visible section and a specific feature invisible section, and classifies the specific feature visible section and the specific feature invisible section. The display device 22 displays a map showing the invisible section in different display modes.

[Change example]
For example, as shown in FIG. 10, the display mode of the specific feature visible section on the planned travel route of the vehicle (road RD1) and the display mode of the specific feature visible section on the other roads (roads RD2 and RD3) are changed. , may be different from each other.

Further, the section classification unit 13 may subject only the roads included in the planned passage route of the own vehicle among the roads included in the map data acquired by the map data acquisition unit 12 to the section classification process. In this case, as shown in FIG. 11, the display control unit 14 sets the specific feature visible section and the specific feature invisible section on the planned travel route (road RD1) of the vehicle in different display modes. (Roads RD2 and RD3) are displayed in a uniform display mode.

Also, as shown in FIG. 12, a semi-transparent area is formed in a substantially triangular or fan-shaped area surrounded by two straight lines connecting the position of the specific feature and both ends of the specific feature visible section and the road line of the specific feature visible section. A pattern (hereinafter referred to as a "sectoral pattern") may be displayed. By displaying such a fan-shaped pattern, it becomes easier to understand the positional relationship between the specific feature visible section and the specific feature. Also, as shown in FIGS. 13 and 14, the fan-shaped pattern may be displayed only for the specific feature visible section in which the vehicle is located. This makes it easier to understand the three positional relationships of the specific feature visible section, the specific feature, and the own vehicle.

In addition, when the user's current position is within the specific feature viewable section, the display control unit 14 displays an additional image indicating the direction in which the specific feature is visible on a part of the screen of the display device 22 on which the map is displayed. (hereinafter referred to as "additional image") may be displayed. For example, FIG. 15 shows an example in which an additional image 41 of a three-dimensional map with the user's position as the viewpoint is displayed on a part of the map screen. If the user's current position is within the specific feature visible section, the 3D map of the additional image 41 will include the image of the specific feature (pagoda PG) as shown in FIG. can represent the direction from which a particular feature is visible. In the additional image 41 of FIG. 15, an elliptical image 411 emphasizing the position of the specific feature is superimposed on the three-dimensional map. Further, the additional image 41 may include characters indicating the distance and direction from the user's current position to the specific feature. When the user is the driver of the vehicle, the three-dimensional map with the viewpoint of the position of the user, that is, the position of the driver's seat of the vehicle, is also called a "cruising view" map.

Further, when the user is riding in a vehicle (self-vehicle), instead of the three-dimensional map, a photographed image of the direction of a specific feature captured by a camera mounted on the self-vehicle may be used as the additional image 41. good. If the current position of the own vehicle is within the specific feature visible section, the specific feature is reflected in the photographed image as the additional image 41, so the additional image 41 can represent the direction in which the specific feature is visible. Also, an image that emphasizes the position of a specific feature (corresponding to the elliptical image 411 in the additional image 41 in FIG. 15) may be superimposed on the photographed image.

FIG. 16 shows an example in which an additional image 42 indicating the direction of a specific feature from the vehicle (self-vehicle) in which the user boarded is displayed on a part of the map screen. The additional image 42 of FIG. 16 represents the direction of the specific feature from the own vehicle by a bird's-eye view image 421 of the own vehicle and a figure 422 imitating the light of a searchlight indicating the direction of the specific feature.

The additional image indicating the direction from which the specific feature can be seen may be displayed on the screen that the user can see through the head-up display so as to be superimposed on the actual scenery seen by the user. For example, when the vehicle (self-vehicle) boarded by the user is traveling in a specific feature invisible section, as shown in FIG. Not included. However, when the own vehicle enters the specific feature visible section, the pagoda PG, which is the specific feature, can be seen through the windshield 60 as shown in FIG. At this time, the display control unit 14 controls a head-up display (not shown) mounted on the own vehicle to display an additional image 43 indicating the direction in which the pagoda PG can be seen on the windshield 60 as a screen, as shown in FIG. may be displayed. The additional image 43 is preferably displayed so as to overlap a position where the pagoda PG can be seen from the driver's perspective.

If the head-up display has a function that can control the apparent distance of the image to be displayed, that is, the sense of distance (sense of depth) of the image as viewed by the user, the additional image can be displayed according to the distance from the user to the specific feature. You can change the sense of distance. For example, when the distance from the user to the specific feature is long, the additional image is made to appear farther from the user, and as the distance from the user to the specific feature becomes shorter, the additional image is made to appear closer to the user. good too.

Also, the additional image may be displayed before the user enters the specific feature visibility zone for the purpose of foretelling the user that the specific feature will begin to be visible. For example, at the timing before the state of FIG. 17 changes to the state of FIG. 18, the display control unit 14 controls the head-up display to announce that the specific feature (pagoda PG) will start to appear as shown in FIG. An additional image 44 may be displayed on the windshield 60 . The additional image 44 is preferably displayed so as to overlap the position where the pagoda PG starts to be seen from the driver's perspective.

Note that the additional images 41 and 42 shown in FIGS. 15 and 16 may also be displayed before the user can actually see the specific feature for the purpose of notifying the user that the specific feature will begin to be seen. good.

Many navigation systems have a route simulation function that moves an icon indicating a user's virtual position along a planned passage route on a map. The additional image 41 (three-dimensional map with the user's position as the viewpoint) shown in FIG. 15 can also be applied to route simulation. That is, in the route simulation, the additional image 41 may be displayed on part of the route simulation screen when the icon indicating the user's virtual position is within the specific feature visible section.

When the map display control device 10 is mounted on a vehicle (self-vehicle) as in Embodiment 2, the result of the section classification processing by the section classification unit 13 (that is, the information on the specific feature visible section and the specific feature invisible section ) may be reflected in route guidance and automatic driving control of the own vehicle. For example, when the map data stored in the map data storage device 21 is high-precision map data including position information for each lane of the road, the section classification unit 13 performs section classification processing for each lane of the road and displays the map. The control device 10 sends the result (for example, information on a specific feature visible section for each lane, information on a lane that can increase the distance of the specific feature visible section, etc.) to the navigation system 30 of the vehicle or an automatic driving system (unavailable). shown).

For example, the navigation system 30 that has acquired the result of the segment classification process can guide the user to a lane that will increase the distance that the own vehicle travels in the specific feature visible segment. Further, the automatic driving system of the own vehicle that has acquired the result of the section classification process may automatically change lanes so that the distance that the own vehicle travels in the specific feature visible section becomes longer. Further, when searching for a route from the current position to the destination, the navigation system 30 may search for a route with a longer specific feature visible section. This makes it possible to lengthen the time during which the user can view the specific feature.

<Embodiment 3>
If the user of the map display control device 10 is a pedestrian, the user can freely look around, so the user's visual range is not limited. However, if the user of the map display control device 10 is a driver of a vehicle, the user's visual range is limited because the user must look forward while driving. Embodiment 3 proposes a map display control device 10 that performs segment classification processing in consideration of the user's visual field range.

FIG. 20 shows an example of the visual field range of the user when the user is the driver of the vehicle (self-vehicle). In FIG. 20, the front front of the vehicle is 0°, the right angle with respect to the front front is positive, and the left angle is negative. Let α _R (>0°) be the limit angle at which the user, the driver, can visually recognize the right _side , and α _L (<0°) be the limit angle at which the user can visually recognize the left side. It is expressed as _Θ≤αR . In other words, α _L is a parameter representing the width of the visual field range on the left side of the front, and α _R is a parameter representing the width of the viewing range on the right side of the front. In the third embodiment, α _R =90° and α _L =−90° are assumed. That is, the visual field range Θ of the user is −90°≦Θ≦90°.

The configuration and operation of the map display control device 10 of the third embodiment are basically the same as those of the second embodiment. However, in Embodiment 3, the segment classification unit 13 performs segment classification processing in consideration of the user's visual field range at each point on the road. The user's visual field range is set according to the orientation of the own vehicle when passing each point on the road.

Hereinafter, the operation of the map display control device 10 according to the third embodiment will be described while showing a specific example of the map displayed on the display device 22 by the display control section 14. FIG. Here, of the roads included in the map data acquired by the map data acquisition unit 12, the section classification unit 13 subjects only the roads included in the planned passage route of the own vehicle to the section classification process.

In the map illustrated in FIG. 2, the point P2 is the point where the pagoda PG, which is a specific feature, can be seen right beside the road RD1 (in the direction of -90°). Therefore, when the user's visual field range Θ is in the range of −90°≦Θ≦90°, the section classifying unit 13 of the third embodiment determines points P2 and P3 where the direction of the pagoda PG is outside the user's visual field range. and (section P2-P3) is classified as a specific feature invisible section. That is, the section classification unit 13 classifies the section P1-P2 and the section P4-P5 of the road RD1, which is the planned travel route, into specific feature visible sections in which the specific feature (pagoda PG) is visible. P0-P1, section P2-P4, and section P5-P6 are classified as specific feature invisible sections in which the specific feature is invisible.

Therefore, in the map displayed on the display device 22 by the display control unit 14, as shown in FIG. The display modes of the sections P0-P1, P2-P4, and P5-P6 classified as are different from each other.

In Embodiment 3, α _R =90° and α _L =−90° were assumed, but the magnitudes (absolute values) of α _R and α _L may be arbitrary values, and the magnitude of α _R and α _L The size may be set independently. That is, the visual range does not have to be bilaterally symmetrical, and for example, the visible range on the driver's seat side may be slightly widened. Specifically, if the vehicle has a driver's seat on the right side (a so-called "right-hand drive vehicle"), the driver's visual range Θ is set to -60° ≤ Θ ≤ 75°, and the vehicle is on the left side. In the case of a vehicle with a driver's seat on the side (a so-called "left-hand drive vehicle"), the driver's visual range Θ may be -75°≦Θ≦60°. Also, the sizes of α _R and α _L may be changed according to the user's preference.

Also, the direction of 0° does not have to be in front of the vehicle, and may change according to the shape of the road in front of the vehicle, for example. For example, the tangential direction of the road in front of the vehicle may be the direction of 0°. Also, although it depends on the traveling speed, since the driver generally sees the road several tens of meters ahead, the direction of a point on the road several tens of meters ahead of the own vehicle may be set as the direction of 0°.

In addition, in FIG. 20, the driver's visual field range is defined as the range that the driver can directly see. However, the driver can also indirectly see the rear of the vehicle through the rearview mirror (including electronically realized rearview mirrors). The range behind the vehicle that can be viewed may also be included in the visual field range.

Since the width of the driver's field of vision varies depending on the driving load on the driver, the section classification unit 13 changes the setting values of α _R and α _L in consideration of the driving load on the driver. good. That is, the size of the user's visual field range at each point on the road may be set to a different value at each point.

Also, the size of the user's visual field may be set according to the driving environment when the vehicle passes through the point or the road attribute of the point. In general, the higher the speed limit of a road, the higher the speed of a vehicle. can be set narrower. In addition, since it is considered that the driver's driving load increases on winding roads and narrow roads, the section classification unit 13 sets the user's visual field range narrowly on roads with large curvatures and narrow roads. You may

In addition, it is conceivable that the driver's driving load will be increased at intersections, near junctions, and the like. In addition, the type of road (expressway, expressway, general road, etc.), the number of pedestrians, and the amount of traffic also affect the driving load on the driver. The range may vary. For example, traffic information obtained from VICS (Vehicle Information and Communication System) (“VICS” is a registered trademark) can be used to predict pedestrian or vehicle congestion and average vehicle speed by time of day, day of the week, or season. to change the user's field of view at each point. In addition, when visibility is poor due to bad weather, it is considered that the driving load on the driver increases. Therefore, based on the weather information, the user's visual field range may be changed at each point.

Also, the size of the user's visual field may be set according to the automatic driving level when the vehicle passes the point. Here, the definition of the automation level (automatic driving level) of automatic driving of automobiles will be explained. According to SAE (Society of Automotive Engineers) International J3016 (September 2016) and its Japanese reference translation JASO TP18004 (February 2018), the autonomous driving level of an autonomous driving system is defined as follows. It is

Level 0 (no driving automation): the driver performs some or all dynamic driving tasks Level 1 (driver assistance): the system performs either longitudinal or lateral vehicle motion control subtasks in a limited area Level 2 (partial driving automation): the system performs both longitudinal and lateral vehicle motion control subtasks in a limited domain Level 3 (conditional driving automation): the system performs all dynamic driving tasks in a limited domain However, if it is difficult to continue operation, the driver responds appropriately to intervention requests from the system Level 4 (advanced driving automation): The system performs all dynamic driving tasks and responds Execution in a restricted area Level 5 (complete driving automation): The system executes all dynamic driving tasks and responses to difficult cases of continued operation indefinitely (i.e. not within a restricted area) Note that the "dynamic driving task" means all operational and tactical functions (excluding strategic functions such as itinerary planning and choice of waypoints) that need to be performed in real time when operating a vehicle in road traffic. In addition, "limited area" means the specific conditions under which the system or its functions are designed to operate (geographic restrictions, road surface restrictions, environmental restrictions, traffic restrictions, speed restrictions, time restrictions, etc.) (including restrictions, etc.).

When the automatic driving level is defined as above, the driving load on the driver is reduced as the driving level increases. Therefore, in the automatic driving plan of the own vehicle, the user's visual field range may be set wide in the section where the automatic driving level is increased, and set narrow in the section where the automatic driving level is decreased. In particular, in sections where the automatic driving level is set to 4 or higher, the driver is released from driving operations, so the user's visual field range may be omnidirectional (−180°≦Θ≦180°). Also, when the own vehicle is remotely controlled by a remote driving service, the driver is released from the driving operation, so the user's visual field may be omnidirectional.

[Change example]
In the above description, only one type of user's visual field range is set, but multiple types of visual field ranges with different widths may be set. For example, FIG. 22 shows an example in which the visual field range Θ1 at visual recognition level 1 is defined as α _L ≤ Θ1 ≤ α _R , and the visual field range Θ2 at visual recognition level 2 is defined as all directions, that is, -180°≤Θ≤180°. Here, the visual recognition level represents the degree of ease of visual recognition, and the visual field range of visual recognition level 1 is a range that the user can visually recognize more easily than the visual field range of visual recognition level 2. FIG.

In this case, the segment classification unit 13 performs segment classification processing in consideration of multiple types of visual field ranges. That is, the section classification unit 13 obtains specific feature visible sections corresponding to each of the plurality of types of visual field ranges. In addition, the display control unit 14 displays the specific feature visible sections corresponding to each of the plurality of types of visual field ranges on the map in different display modes.

For example, the visual field range Θ1 at visual recognition level 1 is defined as −90°≦Θ1≦90°, and the visual field range Θ2 at visual recognition level 2 is defined as −180°≦Θ2≦180°. In the map illustrated in FIG. 2, the point P2 is a point where the pagoda PG, which is a specific feature, can be seen directly beside the road RD1 (in the direction of -90°). For RD1, the section P1-P2 and the section P4-P5 where the pagoda PG can be seen in the visual range of visibility level 1 are classified as the specific feature visible section of level 1, and the pagoda PG is outside the visual range of visibility level 1. The section P2-P3 visible within the visual range of visibility level 2 is classified as the specific feature visible section of level 2, and the section P0-P1, section P3-P4 and section P5-P6 where the pagoda PG is not visible are the specific feature invisible Classify into intervals.

Therefore, in the map displayed on the display device 22 by the display control unit 14, as shown in FIG. The display mode of the section P2-P3 classified as the specific feature visible section and the display mode of the section P0-P1, section P3-P4 and section P5-P6 classified as the specific feature invisible section are different. become a thing.

Alternatively, as shown in FIG. 24, between the section P1-P2 and the section P4-P5 classified as the level 1 specific feature visible section and the section P2-P3 classified as the level 2 specific feature visible section, Fan-shaped patterns of different colors may be applied. At this time, as described with reference to FIGS. 13 and 14, the fan-shaped pattern may be displayed only for the section where the vehicle is located.

The method of defining multiple types of visual field ranges is not limited to the method shown in FIG. For example, the range that the driver can directly see is defined as the level 1 field of view, and the range that the driver can indirectly see through the rearview mirror (including electronic mirrors) is defined as the level 2 field of view. good too.

<Embodiment 4>
In the above embodiments, it is assumed that a single feature is specified as a specific feature. It shall be possible to designate a feature as a specific feature. For example, the user can specify not only a specific pagoda but also all buildings belonging to pagodas or all buildings belonging to shrines and temples as specific features. Any attribute such as a convenience store or a specific brand shop may be used as the property attribute.

The configuration and operation of the map display control device 10 of the fourth embodiment are basically the same as those of the second embodiment. However, in Embodiment 4, the section classification unit 13 performs section classification processing for classifying the road into specific feature visible sections and specific feature invisible sections for each of a plurality of features. Then, the display control unit 14 changes the display mode of the specific feature visible section according to the number of specific features visible from the specific feature visible section.

Hereinafter, the operation of the map display control device 10 according to the fourth embodiment will be described while showing a specific example of the map displayed on the display device 22 by the display control section 14. FIG. Here, of the roads included in the map data acquired by the map data acquisition unit 12, the section classification unit 13 subjects only the roads included in the planned passage route of the own vehicle to the section classification process.

Here, the user designates all buildings belonging to pagodas as specific features, and the map data acquisition unit 12 obtains map data of a map such as that shown in FIG. Suppose we have obtained The map of FIG. 25 is almost the same as that of FIG. 2, but there is another pagoda PG2 in addition to the pagoda PG halfway up the mountain M2. The pagoda PG2 is visible from the section (section PP1-PP2) between the points PP1 and PP2 from the road RD1.

In this case, the section classification unit 13 classifies the section P1-P3 and the section P4-P5 as the specific feature visible section of the pagoda PG with respect to the road RD1, which is the planned travel route of the own vehicle. P3-P4 and section P5-P6 are classified as specific feature invisible section of pagoda PG. Further, the section classification unit 13 classifies the section PP1-PP2 as the specific feature visible section of the pagoda PG2, and classifies the section P0-PP1 and the section PP2-P6 as the specific feature invisible section of the pagoda PG2. In other words, the section classification unit 13 classifies the section P0-PP1, the section P3-P4, and the section P5-P6 as specific feature invisible sections in which neither the pagodas PG and PG2 are visible, and classifies the section PP1-P1 as the specific feature invisible section in which only the pagoda PG2 is visible. is classified as a visible specific feature visible section, the section P1-PP2 is classified as a specific feature visible section where both pagodas PG and PG2 are visible, and sections PP2-P3 and P4-P5 are visible only by the pagoda PG. classified as a specific feature visible section.

When the display control unit 14 displays the map on the display device 22, for example, as shown in FIG. P6), a specific feature visible section (segment PP1-P1, section PP2-P3 and P4-P5) where only one of pagoda PG or pagoda PG2 is visible, and a specific feature visible where both pagoda PG and pagoda PG2 are visible Each section (section P1-PP2) is displayed in a different manner. This allows the user to recognize how many specific features (pagodas) can be seen from each section.

Further, the display control unit 14, for example, as shown in FIG. 27, displays the specific feature visible section of the pagoda PG (sections P1-P3 and section P4-P5) and the specific feature visible section of the pagoda PG2 (section PP1-PP2). , may be provided with fan-shaped patterns different from each other. In this case, the section where the two fan-shaped patterns overlap is the section where the two specific features are visible. Therefore, the user can recognize the number of specific features visible from each section based on the number of overlapping fan-shaped patterns.

Further, the additional images 41 and 42 described with reference to FIGS. 15 and 16 may also be applied to the fourth embodiment. For example, when displaying an additional image 41 of a three-dimensional map with the user's position as a viewpoint on a part of the map screen, in a specific feature visible section where both pagoda PG and pagoda PG2 are visible, as shown in FIG. , both pagoda PG and pagoda PG2 are displayed on the three-dimensional map. Further, for example, when displaying an additional image 42 indicating the direction of a specific feature from the vehicle in which the user has boarded (self-vehicle) on a part of the map screen, as shown in FIG. In the specific feature visible section where is visible, two figures 422 imitating searchlight light indicating the direction of the specific feature are displayed. Further, although illustration is omitted, the additional images 43 and 44 displayed on the head-up display described with reference to FIGS. 17, 18 and 19 may also be applied to the fourth embodiment.

<Hardware configuration example>
30 and 31 are diagrams showing examples of the hardware configuration of the map display control device 10, respectively. Each function of the components of the map display control device 10 shown in FIG. 1 or 6 is implemented by, for example, a processing circuit 50 shown in FIG. That is, the map display control device 10 stores a specific feature designated by the user, acquires map data including information on the specific feature, and based on the map data, maps the roads included in the map data to the specific feature. Section classification processing is performed to classify specific feature visible sections, which are sections where objects can be seen, and specific feature invisible sections, which are sections where specific features are not visible. Based on this, a processing circuit 50 is provided for displaying on a display device a map showing specific feature visible sections and specific feature invisible sections of roads in different display modes. The processing circuit 50 may be dedicated hardware, or a processor (central processing unit (CPU: Central Processing Unit), processing device, arithmetic device, microprocessor, microcomputer, etc.) that executes a program stored in a memory. Also called a DSP (Digital Signal Processor)).

When the processing circuit 50 is dedicated hardware, the processing circuit 50 may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination of these. Each function of the components of the map display control device 10 may be realized by individual processing circuits, or those functions may be collectively realized by one processing circuit.

FIG. 31 shows an example of the hardware configuration of the map display control device 10 when the processing circuit 50 is configured using a processor 51 that executes programs. In this case, the functions of the components of the map display control device 10 are implemented by software or the like (software, firmware, or a combination of software and firmware). Software or the like is written as a program and stored in the memory 52 . The processor 51 implements the function of each part by reading and executing the program stored in the memory 52 . That is, when executed by the processor 51, the map display control device 10 performs a process of storing a specific feature designated by the user, a process of acquiring map data including information on the specific feature, and a Section classification that classifies roads included in map data into specific feature visible sections that are sections in which specific features are visible and specific feature invisible sections that are sections in which specific features are not visible. a process of performing processing, a process of displaying on a display device a map showing specific feature visible sections and specific feature invisible sections of roads in different display modes based on map data and results of section classification processing; includes a memory 52 for storing the program that will result in execution of the. In other words, it can be said that this program causes a computer to execute the procedures and methods of operation of the constituent elements of the map display control device 10 .

Here, the memory 52 is, for example, a non-volatile or Volatile semiconductor memory, HDD (Hard Disk Drive), magnetic disk, flexible disk, optical disk, compact disk, mini disk, DVD (Digital Versatile Disc) and its drive device, etc., or any storage medium that will be used in the future. may

The configuration in which the functions of the components of the map display control device 10 are realized by either hardware or software has been described above. However, the configuration is not limited to this, and may be a configuration in which a part of the components of the map display control device 10 are realized by dedicated hardware and another part of the components are realized by software or the like. For example, the functions of some of the components are realized by the processing circuit 50 as dedicated hardware, and the processing circuit 50 as a processor 51 executes the programs stored in the memory 52 for some of the other components. Its function can be realized by reading and executing it.

As described above, the map display control device 10 can implement the functions described above by using hardware, software, etc., or a combination thereof.

In addition, within the scope of the invention, each embodiment can be freely combined, and each embodiment can be appropriately modified or omitted.

While the present invention has been described in detail, the foregoing description is, in all its aspects, illustrative and not intended to limit the invention. It is understood that numerous variations not illustrated can be envisioned without departing from the scope of the invention.

10 map display control device 11 specific feature storage unit 12 map data acquisition unit 13 section classification unit 14 display control unit 15 position information acquisition unit 16 route information acquisition unit 21 map data storage device 22 display device , 23 operation input device, 24 positioning device, 25 scheduled travel route setting unit, 30 navigation system, 41 to 44 additional images, 51 processor, 52 memory, 60 windshield.

Claims (20)

a specific feature storage unit that stores specific features specified by a user;
a map data acquisition unit for acquiring map data including information on the specific feature;
Based on the map data, the road included in the map data is divided into a specific feature visible section, which is a section in which the specific feature is visible, and a specific feature invisible section, which is a section in which the specific feature is not visible. a section classification unit that performs section classification processing for classifying into sections;
a display control unit for displaying, on a display device, a map showing the specific feature visible section and the specific feature invisible section of the road in different display modes, based on the map data and the result of the section classification processing; ,
with
The section classification unit performs the section classification process in consideration of the user's visual field range at each point on the road.
Map display controller. further comprising a location information acquisition unit that acquires location information of the user;
The display control unit displays an icon indicating the position of the user on the map.
The map display control device according to claim 1. The visual field range of the user at each point on the road is set according to the orientation of the vehicle when the vehicle boarded by the user passes through the point.
The map display control device according to claim 1. The width of the right side and the width of the left side from the front of the vehicle in the visual field range are set independently of each other.
The map display control device according to claim 3. The width of the visual field range of the user at each point on the road can be set to a different value at each point.
The map display control device according to claim 1. The size of the visual field range of the user at each point on the road is set according to the driving environment when the vehicle passes through the point or the road attribute of the point.
The map display control device according to claim 3. The width of the visual field range of the user at each point on the road is set according to the automated driving level when the vehicle passes through that point.
The map display control device according to claim 3. configured so that the user can designate a single feature or a plurality of features having a common attribute as the specific feature,
The map display control device according to claim 1. When a plurality of specific features are stored in the specific feature storage unit, the display mode of the specific feature visible section is determined according to the number of specific features visible from the specific feature visible section. Be changed,
The map display control device according to claim 1. a specific feature storage unit that stores specific features specified by a user;
a map data acquisition unit for acquiring map data including information on the specific feature;
Based on the map data, the road included in the map data is divided into a specific feature visible section, which is a section in which the specific feature is visible, and a specific feature invisible section, which is a section in which the specific feature is not visible. a section classification unit that performs section classification processing for classifying into sections;
a display control unit for displaying, on a display device, a map showing the specific feature visible section and the specific feature invisible section of the road in different display modes, based on the map data and the result of the section classification processing; ,
a location information acquisition unit that acquires location information of the user;
with
The display control unit displays an icon indicating the position of the user on the map, and displays an additional image indicating a direction in which the specific feature is visible on a part of the display screen of the map,
The additional image is an image of a three-dimensional map with the position of the user as a viewpoint,
Map display controller. a specific feature storage unit that stores specific features specified by a user;
a map data acquisition unit for acquiring map data including information on the specific feature;
Based on the map data, the road included in the map data is divided into a specific feature visible section, which is a section in which the specific feature is visible, and a specific feature invisible section, which is a section in which the specific feature is not visible. a section classification unit that performs section classification processing for classifying into sections;
a display control unit for displaying, on a display device, a map showing the specific feature visible section and the specific feature invisible section of the road in different display modes, based on the map data and the result of the section classification processing; ,
a location information acquisition unit that acquires location information of the user;
with
The display control unit displays an icon indicating the position of the user on the map, and displays an additional image indicating a direction in which the specific feature is visible on a part of the display screen of the map,
The additional image is a photographed image taken in the direction of the specific feature,
Map display controller. The display control unit uses a head-up display to display an additional image indicating the direction in which the specific feature is visible on a screen that the user can see through.
3. The map display control device according to claim 2. further comprising a route information acquisition unit that acquires information on the user's scheduled passage route,
The section classification unit subjects roads included in the planned passage route among roads included in the map data to the section classification process.
3. The map display control device according to claim 2. In a route simulation in which an icon indicating the virtual position of the user is moved along the planned passage route on the map, an image of the specific feature is included when the icon is within the specific feature visible section. , displaying a three-dimensional map image with the user's virtual position as a viewpoint on a part of the route simulation screen;
The map display control device according to claim 13 . The planned passage route is a planned travel route of the vehicle boarded by the user,
The section classification unit performs the section classification process for each lane of the road,
When the road on the planned travel route has a plurality of lanes, the navigation system of the vehicle or Providing for autonomous driving systems
The map display control device according to claim 13 . The section classification unit performs the section classification process by setting a plurality of types of the visual field ranges having different widths,
2. The map display control device according to claim 1, wherein the display control unit displays the specific feature visible sections corresponding to each of the plurality of types of visual field ranges on the map in different display modes. The user's field of vision includes a range visible to the user through a rearview mirror or an electronic mirror of the vehicle in which the user boarded,
The map display control device according to claim 1. The specific feature storage unit of the map display control device stores the specific feature designated by the user,
A map data acquisition unit of the map display control device acquires map data including information of the specific feature,
Based on the map data, the section classification unit of the map display control device divides the roads included in the map data into specific feature visible sections, which are sections in which the specific feature is visible, and the specific feature. Perform section classification processing to classify into specific feature invisible sections that are invisible sections,
The display control unit of the map display control device displays the specific feature visible section and the specific feature invisible section of the road in different display modes based on the map data and the result of the section classification processing. Display the map on the display device,
The section classification unit performs the section classification process in consideration of the user's visual field range at each point on the road.
Map display control method. The specific feature storage unit of the map display control device stores the specific feature specified by the user,
A map data acquisition unit of the map display control device acquires map data including information of the specific feature,
Based on the map data, the section classification unit of the map display control device divides the roads included in the map data into specific feature visible sections, which are sections in which the specific feature is visible, and the specific feature. Perform section classification processing to classify into specific feature invisible sections that are invisible sections,
The display control unit of the map display control device displays the specific feature visible section and the specific feature invisible section of the road in different display modes based on the map data and the result of the section classification processing. Display the map on the display device,
a location information acquisition unit of the map display control device acquires location information of the user;
The display control unit displays an icon indicating the position of the user on the map, and displays an additional image indicating a direction in which the specific feature is visible on a part of the display screen of the map,
The additional image is an image of a three-dimensional map with the position of the user as a viewpoint,
Map display control method. The specific feature storage unit of the map display control device stores the specific feature designated by the user,
A map data acquisition unit of the map display control device acquires map data including information of the specific feature,
Based on the map data, the section classification unit of the map display control device divides the roads included in the map data into specific feature visible sections, which are sections in which the specific feature is visible, and the specific feature. Perform section classification processing to classify into specific feature invisible sections that are invisible sections,
The display control unit of the map display control device displays the specific feature visible section and the specific feature invisible section of the road in different display modes based on the map data and the result of the section classification processing. Display the map on the display device,
a location information acquisition unit of the map display control device acquires location information of the user;
The display control unit displays an icon indicating the position of the user on the map, and displays an additional image indicating a direction in which the specific feature is visible on a part of the display screen of the map,
The additional image is a photographed image taken in the direction of the specific feature,
Map display control method.

Images