WO2021070238A1

WO2021070238A1 - Map display control device and map display control method

Info

Publication number: WO2021070238A1
Application number: PCT/JP2019/039593
Authority: WO
Inventors: 下谷　光生; 敬介井上
Original assignee: 三菱電機株式会社
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2021-04-15
Also published as: JPWO2021070238A1; JP7275294B2

Abstract

In this map display control device (10), a specific feature storage unit (11) stores a specific feature specified by a user, and a map data acquisition unit (12) acquires map data including information about the specific feature. A section classification unit (13) carries out section classification processing in which a road included in the map data acquired by the map data acquisition unit (12) is classified into a specific-feature-viewable section where the specific feature is viewable and a specific-feature-non-viewable section where the specific feature is not viewable. A display control unit (14) uses the map data and the result of the section classification processing to display, on a display device (22), a map in which the specific-feature-viewable section and the specific-feature-non-viewable section of the road are represented using different display styles.

Description

Map display control device and map display control method

The present invention relates to a map display control device that displays a map on a display device.

A map display device that displays a map on the screen of a display device is widely applied to, for example, a navigation device or a smartphone having a map display application. Further, in recent years, a map display device capable of three-dimensional map display using the map data of a three-dimensional model has become widespread against the background of high performance of the map display device and high accuracy of the map data.

Further, Patent Document 1 below discloses a display device for a vehicle that can indicate the direction of a specific feature (landmark or the like) with reference to the position of the vehicle.

JP-A-2017-118486

By designating a specific feature of interest (hereinafter referred to as "specific feature"), the user of the map display device can display a map around the specific feature on the screen of the display device. This allows you to recognize the positional relationship between your current position and a specific feature. However, even if the user looks around and searches for a specific feature, the specific feature may not always be visible depending on the surrounding terrain and the position of the building. It is a waste of effort to search for a specific feature in a place where the specific feature cannot be seen. In particular, when the user is a driver of a vehicle, searching for a specific feature in vain increases the driving load.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a map display control device capable of showing a user a place where a specific feature can be visually recognized.

The map display control device according to the present invention is based on a specific feature storage unit that stores a specific feature designated by the user, a map data acquisition unit that acquires map data including information on the specific feature, and map data. The roads included in the map data are classified into a specific feature visible section, which is a section where the specific feature is visible, and a specific feature invisible section, which is a section where the specific feature is invisible. Display control that displays a map showing a specific feature visible section and a specific feature invisible section of a road in different display modes on a display device based on the section classification unit that performs It is equipped with a part.

According to the map display control device according to the present invention, the user can know in advance a place where a specific feature can be visually recognized. Therefore, it is possible to prevent the user from unnecessarily searching for a specific feature in a place where the specific feature cannot be seen.

The object, features, aspects, and advantages of the present invention will be made clearer by the following detailed description and accompanying drawings.

It is a figure which shows the structure of the map display control device which concerns on Embodiment 1. FIG. It is a figure which shows the example of the map based on the map data. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 1. FIG. It is a flowchart which shows the operation of the map display control device which concerns on Embodiment 1. FIG. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 1. FIG. It is a figure which shows the structure of the navigation system provided with the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 2. FIG. It is a flowchart which shows the operation of the map display control device which concerns on Embodiment 2. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the additional image displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the additional image displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the additional image displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the additional image displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the example of the additional image displayed by the map display control device which concerns on Embodiment 2. FIG. It is a figure which shows the visual field range of the user who is a driver of a vehicle. It is a figure which shows the example of the map which the map display control device which concerns on Embodiment 3 displays. It is a figure which shows the field of view range for each visibility level of the user who is a driver of a vehicle. It is a figure which shows the example of the map which the map display control device which concerns on Embodiment 3 displays. It is a figure which shows the example of the map which the map display control device which concerns on Embodiment 3 displays. It is a figure which shows the example of the map based on the map data. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 4. FIG. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 4. FIG. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 4. FIG. It is a figure which shows the example of the map displayed by the map display control device which concerns on Embodiment 4. FIG. It is a figure which shows the hardware configuration example of the map display control device. It is a figure which shows the hardware configuration example of the map display control device.

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

The map data storage device 21 is a storage medium that stores map data. The map data stored in the map data storage device 21 is three-dimensional map data that includes not only information on the planar position of features such as roads and buildings, but also information such as the altitude of the land and the height of the features. is there.

The display device 22 is a 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 accepts a user's operation on the map display control device 10. Using the operation input device 23, the user can, for example, set the range of the map to be displayed on the display device 22 (hereinafter referred to as "map display range"), or specify the feature of interest as a specific feature. can do. In the present embodiment, it is assumed that the user specifies the center point of the map display range and the scale of the map to set the map display range.

The map data storage device 21, the display device 22, and the operation input device 23 may be built in the map display control device 10. Further, 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, a push button, an operation lever, or a touch pad, or may be software keys displayed on a screen. For example, the display device 22 may display the software key as the operation input device 23, and in that 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 14.

The specific feature storage unit 11 stores the specific feature specified by the user. The map data acquisition unit 12 acquires map data of the map display range set by the user and its vicinity from the map data storage device 21. When the specific feature is located in or near the display range of the map, the map data acquired by the specific feature storage unit 11 includes the information of the specific feature.

Based on the map data acquired by the map data acquisition unit 12, the section classification unit 13 visually recognizes the road included in the map data as a specific feature visible section which is a section in which the specific feature can be visually recognized and the specific feature. It is classified as an invisible section of a specific feature, 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 the altitude of the land and the height of the feature, the section classification unit 13 determines the altitude of the road and the location of the specific feature. Whether or not a specific feature can be seen from each point on the road, based on the altitude of the specific feature, the size and height of the specific feature, the height of the land or feature existing between the road and the specific point, etc. , It is possible to judge whether or not each point on the road and a specific feature are blocked by the land or feature. Hereinafter, the process of classifying a road into a specific feature visible section and a specific feature invisible section is referred to as "section classification process".

In the section classification process, "the specific feature is visible" does not necessarily mean that the entire specific feature can be seen. For example, it may be defined as "the specific feature is visible" including the state where only a part of the specific feature is visible and the state where a certain percentage or more of the specific feature is visible. Further, the definition of "the 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 characteristic roof shape, it may be determined that the specific feature is visible when the roof portion 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, the display control unit 14 sets the specific feature visible section and the specific feature visible section on the road so that the user can distinguish between the specific feature visible section and the specific feature invisible section based on the result of the section classification process by the section classification unit 13. The specific feature invisible section is displayed in different display modes.

Any method may 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 line representing the road (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 displayed in animation (for example, blinking display).

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

Further, it is assumed that the user of the map display control device 10 designates the pagoda PG as a specific feature, and the information of the pagoda PG is stored in the specific feature storage unit 11.

Define points P0 to P6 on the road RD1. The point P0 is the intersection of the road RD1 and the lower end of the map, and the point P6 is the intersection of the road RD1 and the upper end of the map. That is, the display area of the map includes a section (section P0-P6) between the point P0 and the point P6 on the road RD1. The section between the point P0 and the point P1 (section P0-P1) is a section where the pagoda PG cannot be visually recognized because it is blocked by the slope of the mountain M2. The section between the point P1 and the point P3 (section P1-P3) is a section in which the pagoda PG can be visually recognized from the south side. 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 formed by 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 °. The section between the point P3 and the point P4 (section P3-P4) is a section where the pagoda PG cannot be visually recognized because it is blocked by the buildings B1, B2, and B3. The section between the point P4 and the point P5 (section P4-P5) is a section where the pagoda PG can be visually recognized from the east side. The section between the point P5 and the point P6 (section P5-P6) is a section where the pagoda PG cannot be visually recognized because it is blocked by the building B4.

Define points Q0 to Q2 on the road RD2. Point Q0 is the intersection of the road RD2 and the lower end of the map, and point Q2 is the intersection of the road RD2 and the upper end of the map. That is, the map display area includes a section (section Q0-Q2) between the point Q0 and the point Q2 on the road RD2. The section between the point Q0 and the point Q1 (section Q0-Q1) is a section where the pagoda PG can be visually recognized. The section between the point Q1 and the point Q2 (section Q1-Q2) is a section where the pagoda PG cannot be visually recognized because it is blocked by the mountain M2. 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 sections P1-P3 and the sections P4-P5 into visible specific features (pagoda PG) with respect to the road RD1, and the section P0- P1, section P3-P4 and section P5-P6 are classified into a specific feature invisible section in which the specific feature is invisible. Further, the section classification unit 13 classifies the sections Q0-Q1 into specific feature visible sections and the sections Q1-Q2 into specific feature invisible sections with respect to the road RD2. Further, the section classification unit 13 classifies the entire section of the road RD3 into 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. 3, the display control unit 14 has a section P1-P3 and a section P4-P5 of the road RD1 and a section Q0 of the road RD2 classified as a specific feature visible section. -Q1 and the display mode of all sections of road RD3, and display of sections P0-P1, sections P3-P4 and sections P5-P6 of road RD1 classified as invisible sections of specific features, and sections Q1-Q2 of road RD2. The embodiments are different from each other. Here, the thickness of the road line in the specific feature invisible 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 invisible section is changed to the color of the road line in the specific feature invisible section. It is different from. By displaying the map as shown in FIG. 3 on the display device 22, the user can know in advance a place where the pagoda PG, which is a specific feature, can be visually recognized. Therefore, it is possible to prevent the user from unnecessarily searching for a specific feature in a place where the specific feature cannot be seen.

Note that, in FIG. 3, for convenience of explanation, codes such as “P1” and “Q1” are shown, but these codes do not need to be displayed on the map displayed on the display device 22. This also applies to the map display example shown below.

Next, the operation of the map display control device 10 according to the first embodiment will be described with reference to the flowchart of FIG. When the map display control device 10 is activated and the user specifies a specific feature using the operation input device 23, the specific feature storage unit 11 stores the specific feature (step ST101). When the user specifies the center point and scale of the map to be displayed using the operation input device 23, the display control unit 14 sets the map display range (step ST102), and the map data acquisition unit 12 is set. The map data of the displayed display range and its vicinity is acquired (step ST103).

After that, the section classification unit 13 performs a section classification process for classifying the road included in the map data into a specific feature visible section and a specific feature invisible section based on the map data acquired by the map data acquisition unit 12 ( 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. Is displayed in (step ST105).

After that, the process returns to step ST102 and waits for the user's operation. For example, when the display range of the map is changed by the user scrolling the map or changing the scale of the map, steps ST102 to ST105 are executed and displayed on the display device 22. The map is updated.

Any method may be used by the user to specify a 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 displays a map on the display device 22 in advance and the user specifies on the map. You may specify a feature.

The method for the user to specify the central point of the display range of the map may be the same as the method for specifying the specific feature. Further, when the map display control device 10 can acquire the current position of the user as in the second embodiment described later, for example, the current position of the user (or the position in front of the current position of the user by a certain distance) is displayed on the map. The display control unit 14 may automatically set the display range of the map based on the current position of the user, such as setting the center point of the display range.

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

Also, 2D map data and 3D map data may be used properly. For example, when the map display control device 10 is mounted on a vehicle, the map data storage device 21 in the vehicle having a limited storage capacity stores two-dimensional map data having a relatively small amount of data, and has a large amount of data3. The dimensional map data may be acquired by the map display control device 10 from a server outside the vehicle by communication, if necessary.

[Change example]
In FIG. 3, the display mode of the road line itself of the specific feature visible section is changed. For example, as shown in FIG. 5, the specific feature visible section is along the road line of the specific feature visible section. By displaying an auxiliary line indicating, the display mode of the specific feature visible section may be changed. At this time, it is advisable to run an auxiliary line along the specific feature side of the road line. This allows the user to know on which side of the road the specific feature is visible. This effect is particularly effective when a specific feature appears outside the display range of the map, such as when the user scrolls the map.

<Embodiment 2>
In the second embodiment, an example in which the map display control device 10 is applied to a navigation system is shown. FIG. 6 is a diagram showing a configuration of the navigation system 30 according to the second embodiment. In the present embodiment, it is assumed that the navigation system 30 is mounted on the vehicle, and hereinafter, the vehicle on which the navigation system 30 is mounted, that is, the vehicle on which the user of the navigation system 30 is 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 unit 25. Since 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, their description will be omitted.

The positioning device 24 calculates the current position of the own vehicle, that is, the current position of the user, using a positioning signal received from a GNSS (Global Navigation Satellite System) satellite such as a GPS (Global Positioning System) satellite. The positioning device 24 improves the calculation accuracy of the current position of the own vehicle by, for example, autonomous navigation using a camera or a sensor mounted on the own vehicle or map matching technology using the map data stored in the map data storage device 21. Processing may be performed.

The planned travel route setting unit 25 calculates a recommended route from the current position of the own vehicle calculated by the positioning device 24 to the destination set by the user, and uses the calculated recommended route as the planned travel route of the own vehicle, that is, the user. Set the planned route. When the user has not set a destination, the planned travel route setting unit 25 estimates the route through which the own vehicle passes based on, for example, the travel history of the own vehicle, and sets the estimated route as the planned travel route. You 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. Displayed on 22.

As shown in FIG. 6, the map display control device 10 of the second embodiment is added to 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. It includes 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. Since 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, their description 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 displays the display mode (thickness, color, etc. of the road line) of the planned travel route so that the planned travel route of the own vehicle can be distinguished from other roads. It should be different from the road display mode. Further, the display control unit 14 superimposes and displays an icon indicating the current position of the own vehicle on the map displayed on the display device 22.

For example, when the current position of the own vehicle is on the road RD1 and the planned travel route of the own vehicle is the road RD1, the display control unit 14 indicates the current position of the own vehicle on the map, for example, as shown in FIG. Along with displaying the triangular icon SV, the road line of the road RD1 which is the planned travel route of the own vehicle is made thicker than other roads. In the state where 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. 8 (except for the specific feature visible section, the road lines of the roads RD1, RD2, RD3). The thickness will be the same). Further, the display mode (color, size, shape, etc.) of the icon SV of the own vehicle may be changed depending on whether the current position of the own vehicle is in the specific feature visible section or the specific feature invisible section.

Further, in the second embodiment, the display control unit 14 sets the display range of the map based on the current position of the own vehicle. For example, the display control unit 14 sets the current position of the own vehicle or the position in front of the current position of the own vehicle by a certain distance as the center point of the display range of the map, so that the current position of the own vehicle is the display range of the map. It may be included in. Further, the display control unit 14 scrolls the map to be displayed on the display device 22 according to the change in the current position of the own vehicle so that the current position of the own vehicle is always within the display range of the map. Good.

According to the map display control device 10 according to the second embodiment, in the map displayed on the display device 22, not only the visible section of the specific feature but also the current position of the own vehicle as the current position of the user and the passage of the user. It is possible to display the planned travel route of the own vehicle as the planned route. By displaying the user's current position on the map, the user can grasp whether or not the current position is within the specific feature visible section, that is, whether or not the specific feature can be seen from the current position. In addition, by displaying the route to be passed by the user on the map, the user can grasp whether or not a specific feature can be seen from the route to be taken from now on. Therefore, it is possible to prevent the user from unnecessarily searching for a specific feature in a place where the specific feature cannot be seen.

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

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

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

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

After that, when returning to step ST203 and updating the current position of the own vehicle, 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 regardless of the current position of the own vehicle as in the first embodiment.

In the present embodiment, an example in which the navigation system 30 is mounted on a vehicle on which the user is boarding is shown, but when the navigation system 30 is realized on a smartphone owned by the user, the vehicle is, for example, a bus. It may be public transportation. Further, the vehicle on which the user is boarding 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 track, which is the planned travel route of the train, into a specific feature visible section and a specific feature invisible section, and the specific feature visible section and the specific feature. A map showing the invisible section in different display modes is displayed on the display device 22.

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

Further, the section classification unit 13 may target 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 for the section classification process. In that 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 own vehicle in different display modes, but other roads. (Roads RD2 and RD3) are displayed in a uniform display mode.

Further, as shown in FIG. 12, translucent in a substantially triangular or substantially 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 "fan 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. Further, as shown in FIGS. 13 and 14, the fan-shaped pattern may be displayed only for the specific feature visible section in which the own 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.

Further, the display control unit 14 displays an additional image showing the direction in which the specific feature can be seen on a part of the screen of the display device 22 on which the map is displayed when the user's current position is within the specific feature visible section. (Hereinafter referred to as "additional image") may be displayed. For example, FIG. 15 is an example in which an additional image 41 of a three-dimensional map with the user's position as a viewpoint is displayed on a part of the map screen. If the user's current position is within the visible section of the specific feature, the three-dimensional map of the additional image 41 includes the image of the specific feature (pagoda PG) as shown in FIG. 15, so that the additional image 41 Can represent the direction in which a specific feature is visible. In the additional image 41 of FIG. 15, an elliptical image 411 that emphasizes the position of a 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 position of the user, that is, the position of the driver's seat of the vehicle as a viewpoint is also called a "cruising view" map.

Further, when the user is in a vehicle (own vehicle), instead of the three-dimensional map, a live-action image obtained by taking the direction of a specific feature with a camera mounted on the own vehicle may be used as the additional image 41. Good. If the current position of the own vehicle is within the visible section of the specific feature, the specific feature is reflected in the live-action image as the additional image 41, so that the additional image 41 can represent the direction in which the specific feature can be seen. Further, an image emphasizing the position of the specific feature (corresponding to the elliptical image 411 in the additional image 41 of FIG. 15) may be superimposed on the live-action image.

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

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

When 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 seen by the user, the additional image is added according to the distance from the user to a specific feature. You may 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 be seen far from the user, and as the distance from the user to the specific feature is shortened, the additional image is made to be seen closer to the user. May be good.

Further, the additional image may be displayed before the user enters the specific feature visible section for the purpose of notifying the user that the specific feature will start to be seen. 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 and announces that the specific feature (pagoda PG) starts to be seen as shown in FIG. The additional image 44 to be displayed may be displayed on the windshield 60. The additional image 44 may be displayed so as to overlap the position where the pagoda PG starts to be seen from the driver's point of view.

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 start to be seen. Good.

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

When the map display control device 10 is mounted on the vehicle (own vehicle) as in the second embodiment, the result of the section classification process by the section classification unit 13 (that is, information on the specific feature visible section and the specific feature invisible section). ) May be reflected in the 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 outputs 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 own vehicle or an automatic driving system (not (Shown) may be provided.

For example, the navigation system 30 that has acquired the result of the section classification process can guide the user to a lane in which the distance traveled by the own vehicle in the visible section of the specific feature becomes longer. In addition, 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 visible section of the specific feature becomes longer. Further, when the navigation system 30 searches for a route from the current position to the destination, the navigation system 30 may be able to search for a route in which the specific feature visible section becomes long. As a result, it is possible to extend the time during which the user can see 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 that the viewing range of the user is not limited. However, if the user of the map display control device 10 is a driver of a vehicle, he / she needs to look forward while driving, so that the user's visual field range is limited. In the third embodiment, the map display control device 10 that performs the section classification process in consideration of the user's visual field range is proposed.

FIG. 20 shows an example of the user's visual field range when the user is the driver of the vehicle (own vehicle). In FIG. 20, the front front of the own vehicle is 0 °, the angle on the right side with respect to the front front is positive, and the angle on the left side is negative. Assuming that the limit angle at which the driver can see the right side is α _R (> 0 °) and the _{limit angle at which the user can see the left side is α L} (<0 °), the user's visual field range Θ is α _L ≦ It is expressed as _{Θ≤α R.} That is, 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 visual field range on the right side of the front. In the third embodiment, it _{is assumed that α R} = 90 ° and α _L = −90 °. That is, the user's visual field range Θ is in the range of −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 the third embodiment, the section classification unit 13 performs the section classification process in consideration of the user's visual field range at each point on the road. The user's field of view is set according to the orientation of the own vehicle when passing through 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 unit 14. Here, the section classification unit 13 targets 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 for the section classification process.

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 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 classification unit 13 of the third embodiment has points P2 and points P3 in which the direction of the pagoda PG is outside the user's visual field range. The section between and (section P2-P3) is classified as a specific feature invisible section. That is, the section classification unit 13 classifies the sections P1-P2 and the sections P4-P5 into visible sections of the specific features (pagoda PG) with respect to the road RD1 which is the planned travel route. P0-P1, section P2-P4, and section P5-P6 are classified into a specific feature invisible section 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. 21, the display modes of the sections P1-P2 and the sections P4-P5 classified as the specific feature visible section and the specific feature invisible section are displayed. The display modes of the sections P0-P1, the sections P2-P4, and the sections P5-P6 classified as are different from each other.

In the third embodiment, _{it is assumed that α R} = 90 ° and α _L = −90 °, but the magnitudes (absolute values) of _{α R} and α _L may be arbitrary values, and the magnitude of _{α R} _{and α L} It may be set independently of the size. That is, the viewing range does not have to be symmetrical, and for example, the viewing range on the driver's seat side may be slightly wider. Specifically, if the own vehicle has a driver's seat on the right side (so-called "right-hand drive vehicle"), the driver's viewing range Θ is set to -60 ° ≤ Θ ≤ 75 °, and the own vehicle is on the left side. If the vehicle has a driver's seat (so-called "left-hand drive vehicle"), the driver's viewing range Θ may be −75 ° ≦ Θ ≦ 60 °. Further, _{the sizes of α R} and α _L may be changed by the user according to his / her preference.

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

Further, in FIG. 20, the visual field range of the driver is defined as a range that the driver can directly see. However, since the driver can also indirectly look at the rear of the vehicle with a rearview mirror (including an "electronic mirror" that electronically realizes the rearview mirror), the driver can see through the rearview mirror. The range behind the vehicle may also be included in the viewing range.

Since the width of the driver's field of view changes depending on the driving load applied to the driver, the section classification unit 13 may change the set values of _{α R} and α _{L in consideration of the driving load applied to the driver.} Good. That is, the width of the user's visual field range at each point on the road may be set to a different value at each point.

Further, the width of the user's field of view 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, the higher the traveling speed of the vehicle, and it is considered that the driving load of the driver becomes heavier. Therefore, the section classification unit 13 indicates that the road having a higher speed limit has a user's viewing range. May be set narrower. Further, since it is considered that the driving load of the driver is large on a winding road or a narrow road, the section classification unit 13 sets the user's field of view narrow on a road having a large curvature of the road or a narrow road. You may.

In addition, it is thought that the driving load of the driver will increase at intersections and near the junction. In addition, the driver's driving load changes depending on the type of road (expressway, motorway, general road, etc.), the amount of pedestrians, and the amount of traffic. The range may be changed. For example, from traffic information obtained from VICS (Vehicle Information and Communication System) (“VICS” is a registered trademark), it is possible to predict the congestion level of pedestrians or vehicles and the average speed of vehicles by time zone, day of the week, or season. The user's viewing range at each point may be changed. In addition, it is considered that the driving load of the driver becomes large even when the visibility is poor due to bad weather. Therefore, the user's visual field range at each point may be changed based on the weather information.

Further, the width of the user's field of view may be set according to the automatic driving level when the vehicle passes the point. Here, the definition of the automation level (autonomous driving level) of the automatic driving of an automobile will be described. According to SAE (Society of Automotive Engineers) International's J3016 (September 2016) and its Japanese reference translation, JASO TP1804 (February 2018), the automatic driving level of the automatic driving system is defined as follows. Has been done.

Level 0 (no driving automation): driver performs some or all dynamic driving tasks Level 1 (driving assistance): system performs either vertical or horizontal vehicle motion control subtasks in a limited area Level 2 (Partial Driving Automation): System Performs Both Vertical and Horizontal Vehicle Motion Control Subtasks in Limited Area Level 3 (Conditional Driving Automation): System Performs All Dynamic Driving Tasks in Limited Area However, if it is difficult to continue operation, the driver responds appropriately to intervention requests from the system. Level 4 (advanced operation automation): The system responds to all dynamic operation tasks and when it is difficult to continue operation. Execution in a limited area Level 5 (fully automated operation): The system executes an unlimited number of responses to all dynamic operation tasks and when it is difficult to continue operation (that is, not within the limited area). Means all operational and tactical functions (excluding strategic functions such as itinerary planning and waypoint selection) that must be performed in real time when operating a vehicle in road traffic. A "limited area" is a specific condition (geographical constraint, road surface constraint, environmental constraint, traffic constraint, speed constraint, temporal constraint) designed to operate the system or its function. (Including restrictions, etc.).

When the automatic driving level is defined as above, the higher the driving level, the less the driver's driving load. 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 the user's visual field range may be set narrow in the section where the automatic driving level is decreased. In particular, in the section where the automatic driving level is 4 or more, the driver is released from the driving operation, so that the user's visual field range may be omnidirectional (−180 ° ≦ Θ ≦ 180 °). Further, when the own vehicle is remotely controlled by the remote driving service, the driver is released from the driving operation, so that the user's field of view may be omnidirectional.

[Change example]
In the above description, only one type of visual field range of the user is set, but a plurality of types of visual field ranges having different widths may be set. For example, FIG. 22 shows an example in which the visual field range Θ1 of the visual level 1 _{is defined as α L} ≤ Θ1 ≤ α _R , and the visual field range Θ2 of the visual field level 2 is defined as omnidirectional, that is, −180 ° ≤ Θ ≦ 180 °. Here, the visual field level represents the degree of ease of visual recognition, and the visual field range of the visual field level 1 is a range that the user can visually recognize more easily than the visual field range of the visual field level 2.

In this case, the section classification unit 13 performs section classification processing in consideration of a plurality of types of visual field ranges. That is, the section classification unit 13 obtains a specific feature visible section corresponding to each of a plurality of types of visual field ranges. Further, 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 of the visual level 1 is defined as −90 ° ≦ Θ1 ≦ 90 °, and the visual field range Θ2 of the visual field 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 right beside the road RD1 (in the direction of −90 °). With respect to RD1, the section P1-P2 and the section P4-P5 in which the pagoda PG can be seen in the visual range of the visual level 1 are classified into the specific feature visible section of the level 1, and the pagoda PG is out of the visual range of the visual level 1. The section P2-P3 that can be seen within the viewing range of visibility level 2 is classified into the specific feature visible section of level 2, and the sections P0-P1, the section P3-P4, and the section P5-P6 where the pagoda PG cannot be seen are invisible to the specific feature. Classify into sections.

Therefore, in the map displayed on the display device 22 by the display control unit 14, as shown in FIG. 23, the display modes of the sections P1-P2 and the sections P4-P5 classified as the level 1 specific feature visible section and the level 2 The display mode of the section P2-P3 classified as the specific feature visible section and the display mode of the sections P0-P1, the section P3-P4, and the section P5-P6 classified as the specific feature invisible section are different from each other. It becomes a thing.

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

The method of defining a plurality of types of visual field ranges is not limited to the method shown in FIG. For example, a range that is directly visible to the driver is defined as a level 1 field of view, and a range that is indirectly visible to the driver through a rearview mirror (including an electronic mirror) is defined as a level 2 field of view. May be good.

<Embodiment 4>
In the above embodiment, it is assumed that a single feature is designated as a specific feature, but in the fourth embodiment, the user has a plurality of attributes common to the map display control device 10. A feature can be designated as a specific feature. For example, the user can specify not only a unique pagoda but also all the buildings belonging to the pagoda or all the buildings belonging to the shrines and temples as specific features. The attributes of the feature may be any, for example, a convenience store, a specific brand shop, or the like.

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 the fourth embodiment, the section classification unit 13 performs a section classification process for classifying the road into a specific feature visible section and a specific feature invisible section for each of the 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 unit 14. Here, the section classification unit 13 targets 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 for the section classification process.

Here, the user designates all the buildings belonging to Pagoda as specific features, and the map data acquisition unit 12 uses the map data of the map as shown in FIG. 25 as the map data of the map to be displayed on the display device 22. Is assumed to have been 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 on the hillside of the mountain M2. The pagoda PG2 is visible from the road RD1 from the section between the points PP1 and the point PP2 (section PP1-PP2).

In this case, the section classification unit 13 classifies the sections P1-P3 and the sections P4-P5 as the specific feature visible sections of the pagoda PG with respect to the road RD1 which is the planned travel route of the own vehicle, and the sections P0-P1 and the sections. P3-P4 and sections P5-P6 are classified as pagoda PG specific feature invisible sections. Further, the section classification unit 13 classifies the section PP1-PP2 as a specific feature visible section of the pagoda PG2, and classifies the sections 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 sections P0-PP1, the sections P3-P4, and the sections P5-P6 as specific feature invisible sections in which neither the pagoda PG nor the PG2 can be seen, and the section PP1-P1 is only the pagoda PG2. Is classified as a visible specific feature section, the section P1-PP2 is classified as a specific feature visible section where both pagoda PG and PG2 can be seen, and the sections PP2-P3 and P4-P5 are visible only to the pagoda PG. Classify as a specific feature visible section.

When displaying the map on the display device 22, the display control unit 14 displays a specific feature invisible section (section P0-PP1, section P3-P4, and section P5-) in which neither the pagoda PG nor the pagoda PG2 can be seen, for example, as shown in FIG. P6), specific feature visible section (section PP1-P1, section PP2-P3 and P4-P5) where only one of pagoda PG or pagoda PG2 can be seen, and specific feature visible section where both pagoda PG and pagoda PG2 can be seen. Each section (section P1-PP2) has a different display mode. As a result, the user can recognize how many specific features (pagodas) can be seen from each section.

Further, as shown in FIG. 27, the display control unit 14 includes a specific feature visible section of the pagoda PG (section P1-P3 and section P4-P5) and a specific feature visible section of the pagoda PG2 (section PP1-PP2). And, different fan-shaped patterns may be attached to each other. In this case, the section where the two fan-shaped patterns overlap is the section where the two specific features can be seen. Therefore, the user can recognize the number of specific features that can be seen from each section by the number of overlapping fan-shaped patterns.

Further, the

additional images

41 and 42 described with reference to FIGS. 15 and 16 may be applied to the fourth embodiment. For example, when the additional image 41 of the three-dimensional map with the user's position as the viewpoint is displayed on a part of the map screen, in the specific feature visible section where both the pagoda PG and the pagoda PG2 can be seen, as shown in FIG. , Both Pagoda PG and Pagoda PG2 are displayed on the three-dimensional map. Further, for example, when an additional image 42 showing the direction of a specific feature from the vehicle (own vehicle) on which the user boarded is displayed on a part of the map screen, both the pagoda PG and the pagoda PG2 are displayed as shown in FIG. In the visible section of the specific feature, two figures 422 that imitate the light of the searchlight indicating the direction of the specific feature are displayed. Although not shown, the

additional images

43 and 44 to be 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 an example of the hardware configuration of the map display control device 10, respectively. Each function of the component of the map display control device 10 shown in FIG. 1 or FIG. 6 is realized by, for example, the processing circuit 50 shown in FIG. That is, the map display control device 10 stores the specific feature designated by the user, acquires the map data including the information of the specific feature, and based on the map data, sets the road included in the map data as the specific location. The section classification process is performed to classify the specific feature visible section, which is a section where objects can be seen, and the specific feature invisible section, which is a section where objects cannot be seen, and the result of the map data and section classification process is obtained. Based on this, a processing circuit 50 is provided for displaying a map showing a specific feature visible section and a specific feature invisible section of a road in different display modes on a display device. The processing circuit 50 may be dedicated hardware, or may be a processor (Central Processing Unit (CPU), processing unit, arithmetic unit, microprocessor, microprocessor, etc.) that executes a program stored in a memory. It may be configured by using a DSP (also called a 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), or an FPGA (Field-Programmable). GateArray), or a combination of these, etc. The functions of the components of the map display control device 10 may be realized by individual processing circuits, or these 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 by using the processor 51 that executes the program. In this case, the functions of the components of the map display control device 10 are realized by software (software, firmware, or a combination of software and firmware). The software or the like is described as a program and stored in the memory 52. The processor 51 realizes the functions of each part by reading and executing the program stored in the memory 52. That is, when the map display control device 10 is executed by the processor 51, the process of storing the specific feature specified by the user, the process of acquiring the map data including the information of the specific feature, and the map data Based on this, the roads included in the map data are classified into a specific feature visible section, which is a section where the specific feature is visible, and a specific feature invisible section, which is a section where the specific feature is invisible. Processing to perform processing, processing to display a map showing a specific feature visible section and a specific feature invisible section of a road in different display modes on a display device based on the results of map data and section classification processing. Provide a memory 52 for storing a program that will eventually be executed. In other words, it can be said that this program causes the computer to execute the procedure and method of operation of the components of the map display control device 10.

Here, the memory 52 is a non-volatile or non-volatile memory such as a RAM (RandomAccessMemory), a ROM (ReadOnlyMemory), a flash memory, an EPROM (ErasableProgrammableReadOnlyMemory), or an EEPROM (ElectricallyErasableProgrammableReadOnlyMemory). 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 used in the future. You 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 present invention is not limited to this, and a configuration in which a part of the components of the map display control device 10 is realized by dedicated hardware and another part of the components is realized by software or the like may be used. For example, for some components, the function is realized by the processing circuit 50 as dedicated hardware, and for some other components, the processing circuit 50 as the processor 51 is stored in the memory 52. It is possible to realize the function by reading and executing it.

As described above, the map display control device 10 can realize each of the above-mentioned functions by hardware, software, or a combination thereof.

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

Although the present invention has been described in detail, the above description is exemplary in all embodiments and the present invention is not limited thereto. It is understood that innumerable variations not illustrated can be assumed without departing from the scope of the present 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 planned travel route setting unit, 30 navigation system, 41-44 additional images, 51 processor, 52 memory, 60 windshield.

Claims

A specific feature storage unit that stores a specific feature specified by the user,
A map data acquisition unit that acquires map data including information on the specific feature, and
Based on the map data, the roads included in the map data are 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 invisible. A section classification unit that performs section classification processing to classify into sections,
A display control unit that displays 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 process. ,
A map display control device including.
A position information acquisition unit for acquiring the user's position information is further provided.
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 section classification unit performs the section classification process in consideration of the user's visual field range at each point on the road.
The map display control device according to claim 1.
The field of view of the user at each point on the road is set according to the orientation of the vehicle when the vehicle on which the user is boarding passes through the point.
The map display control device according to claim 3.
The area on the right side and the area on the left side of the vehicle in the viewing range are set independently of each other.
The map display control device according to claim 4.
The width of the field of view 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 3.
The width of the field of view of the user at each point on the road is set according to the traveling environment when the vehicle passes through the point or the road attribute of the point.
The map display control device according to claim 4.
The breadth of the user's field of view at each point on the road is set according to the level of autonomous driving when the vehicle passes through that point.
The map display control device according to claim 4.
It is configured so that the user can specify a single feature or a plurality of features having common attributes as the specific feature.
The map display control device according to claim 1.
When a plurality of the specific features are stored in the specific feature storage unit, the display mode of the specific feature visible section depends on the number of the specific features visible from the specific feature visible section. Be changed,
The map display control device according to claim 1.
The display control unit displays an additional image indicating the direction in which the specific feature is visible on a part of the display screen of the map.
The map display control device according to claim 2.
The additional image is an image of a three-dimensional map with the user's position as a viewpoint.
The map display control device according to claim 11.
The additional image is an image showing the direction of the specific feature from the vehicle on which the user boarded.
The map display control device according to claim 11.
The additional image is a live-action image taken in the direction of the specific feature.
The map display control device according to claim 11.
The display control unit uses a head-up display to display an additional image indicating the direction in which the specific feature can be seen on a screen that the user can see.
The map display control device according to claim 2.
Further, a route information acquisition unit for acquiring information on the route to be passed by the user is provided.
Among the roads included in the map data, the section classification unit targets the road included in the planned passage route for the section classification process.
The map display control device according to claim 2.
In a route simulation in which an icon indicating a virtual position of the user is moved along the planned passage route on the map, when the icon is within the visible section of the specific feature, an image of the specific feature is included. The map display control device according to claim 16, wherein an image of a three-dimensional map with a virtual position of the user as a viewpoint is displayed on a part of a route simulation screen.
The planned passage route is a planned travel route of the vehicle on which the user has boarded.
The section classification unit performs the section classification process for each lane of the road.
When there are a plurality of lanes on the road of the planned travel route, the information on the specific feature visible section for each lane or the information on the lane that can increase the distance of the specific feature visible section can be obtained from the vehicle navigation system or the vehicle navigation system. The map display control device according to claim 16, which is provided for an automatic driving system.
The section classification unit sets a plurality of types of the visual field ranges having different widths and performs the section classification process.
The map display control device according to claim 3, wherein the display control unit displays the specific feature visible section corresponding to each of a plurality of types of the visual field ranges on the map in different display modes.
The user's field of view also includes a range visible to the user through a rearview mirror or electronic mirror of the vehicle on which the user is boarding.
The map display control device according to claim 3.
The specific feature storage unit of the map display control device stores the specific feature specified by the user, and
The map data acquisition unit of the map display control device acquires map data including information on the specific feature, and the map data acquisition unit obtains the map data.
Based on the map data, the section classification unit of the map display control device determines the road included in the map data as a specific feature visible section which is a section in which the specific feature can be visually recognized and the specific feature. Performs section classification processing to classify into invisible sections of specific features, which are invisible sections.
The display control unit of the map display control device shows 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 process. Display the map on the display device,
Map display control method.