JP6718418B2 - Information processing device, map switching method, and map switching program - Google Patents

Description

The present invention relates to a technique of displaying map information, and more particularly to a technique of switching displayed map information.

Conventionally, regarding the map display of the navigation system, there is known a navigation device that switches to the scale of a wide area city map when the vehicle position reaches before the intersection (for example, Patent Document 1).

There is also known a navigation device which stores map data in a built-in memory and stores detailed map data in an external memory (for example, Patent Document 2). This navigation device switches map data from a built-in memory or an external memory according to position information to display a map.

JP, 2005-266704, A JP, 2009-85792, A

By the way, in recent years, it has been considered to perform automatic driving support using a highly accurate map. However, under the current circumstances, for example, in Japan, it is difficult to cover all regions in the country with a highly accurate map. Therefore, it is necessary to switch between a low-precision map and a high-precision map for use.

However, a configuration for smoothly switching between a low-precision map and a high-precision map to display the current position is not known.

The present invention has been made in view of the above circumstances, and as an example of the problem, a first map and a second map that is more accurate than the first map and represents a narrow area, It is intended to provide an information processing device, a map switching method, and a map switching program capable of smoothly switching the map.

To achieve the above object, the information processing apparatus according to the present invention, as one aspect thereof, a current position acquisition unit, a map information acquisition unit, a second storage unit, a layer generation unit, a switching control unit, And a display unit.

The current position acquisition unit acquires the current position. The map information acquisition unit acquires the first map information. The second storage unit stores the second map information that is more accurate than the first map information and is narrower than the area of the first map information. The layer generation unit respectively generates a first layer indicating the first map information including the current position and a second layer indicating the second map information including the current position. The switching control unit controls switching between the first layer and the second layer generated by the layer generation unit, and sets either the first layer or the second layer as the frontmost layer. The display unit displays the frontmost layer.

The second map information is composed of 3D information including an object having a plurality of nodes in which road information is embedded and links connecting adjacent nodes. The switching control unit includes a determination unit and a layer setting unit. The determination unit determines whether or not the position of the foot of the perpendicular line drawn from the current position to the ground is within the predetermined range from the position of the object included in the second map information. When the determination unit determines that the position of the foot of the perpendicular is within a predetermined range from the position of the object, the layer setting unit sets the second layer as the frontmost layer, and the foot of the perpendicular is set. When it is determined that the position is not within the predetermined range from the position of the object, the first layer is set as the frontmost layer.

According to the information processing device having the above configuration (1), it is possible to easily determine whether or not the information processing device is currently on the area where the second map is provided. It is possible to smoothly switch between the second map, which has a higher accuracy than the first map and represents a narrow area.

(2) Further, the information processing apparatus according to the present invention further includes a first storage unit that stores the first map information in the configuration of (1) above. The map information acquisition unit acquires the first map information from the first storage unit.

According to the information processing device having the above configuration (2), since the information processing device is provided with the first map information, it is possible to quickly display the first map.

(3) Further, the information processing apparatus according to the present invention further includes a current position drawing unit in the configurations of (1) and (2) above. The current position drawing unit draws the current position by superimposing the current position on the foreground layer set by the switching control unit. The display unit displays the foreground layer drawn by the current position drawing unit,
According to the information processing device having the above configuration (3), since the current position of the information processing device is displayed on the display unit together with the map, it is suitable as a navigation device.

(4) Further, the information processing apparatus according to the present invention has the following configuration in the configurations (1) to (3).

The map information acquisition unit can mutually communicate with an external server having the first map information. The map information acquisition unit acquires the first map information from the external server.

According to the information processing device having the above configuration (4), since it is not necessary to provide the first map information in the information processing device, the storage capacity of the information processing device can be reduced.

(5) Further, the information processing apparatus according to the present invention has the following configuration in the configurations (1) to (4).

The second map information is composed of the 3D information including the object as coordinate position information. The determination unit converts the current position into the coordinate position in the 3D information, and the position of the foot of the perpendicular line drawn from the converted coordinate position to the ground is within a predetermined range from the position of the object included in the second map information. It is determined whether or not

According to the information processing device having the above configuration (5), it is possible to easily determine whether or not the information processing device is currently on the area where the second map is provided.

(6) Further, the map switching method according to the present invention is, as one aspect thereof, a map switching method in which the information processing device switches and displays the map information.

The map information includes first map information and second map information that is more accurate than the first map information and that is narrower than the area of the first map information.

The second map information is composed of 3D information including an object having a plurality of nodes in which road information is embedded and links connecting adjacent nodes.

The map switching method includes a current position acquisition step, a first map information acquisition step, a second map information acquisition step, a layer generation step, a switching control step, and a display step.

The current position acquisition step acquires the current position of the information processing device. The first map information acquisition step acquires the first map information. The second map information acquisition step acquires second map information. The layer generation step respectively generates a first layer representing the first map information including the current position and a second layer representing the second map including the current position. The switching control step controls switching between the first layer and the second layer generated by the layer generation step, and sets either the first layer or the second layer as the frontmost layer. The display step displays the frontmost layer set by the switching control step on a predetermined display unit.

The switching control step includes a determination step and a layer setting step. The determining step determines whether or not the position of the foot of the perpendicular line drawn from the current position to the ground is within a predetermined range from the position of the object included in the second map information. The layer setting step sets the second layer as the frontmost layer when the position of the foot of the perpendicular line is determined to be within the predetermined range from the position of the object in the judging step, and the position of the foot of the perpendicular line is set. When it is determined that is not within the predetermined range from the position of the object, the first layer is set as the frontmost layer.

According to the map switching method of the above configuration (6), it is possible to easily determine whether or not the information processing device is currently on the area where the second map is provided. It is possible to smoothly switch between the second map, which has a higher accuracy than the first map and represents a narrow area.

(7) Moreover, the map switching program which concerns on this invention is a map switching program which an information processing apparatus switches and displays map information as one aspect.

The map information includes first map information and second map information that is more accurate than the first map information and that is narrower than the area of the first map information.

The second map information is composed of 3D information including an object having a plurality of nodes in which road information is embedded and links connecting adjacent nodes.

The map switching program causes the information processing device to perform a current position acquisition step, a first map information acquisition step, a second map information acquisition step, a layer generation step, a switching control step, and a display step. Let

The current position acquisition step acquires the current position of the information processing device. The first map information acquisition step acquires the first map information. The second map information acquisition step acquires second map information. The layer generation step respectively generates a first layer representing the first map information including the current position and a second layer representing the second map including the current position. The switching control step controls switching between the first layer and the second layer, and sets either the first layer or the second layer as the frontmost layer. The display step displays the frontmost layer set by the switching control step on a predetermined display unit.

The switching control step includes a determination step and a layer setting step. The determining step determines whether or not the position of the foot of the perpendicular line drawn from the current position to the ground is within a predetermined range from the position of the object included in the second map information. In the layer setting step, when it is determined by the determination step that the position of the foot of the perpendicular line is within the predetermined range from the position of the object, the second layer is set as the frontmost layer, and the position of the foot of the perpendicular line is set. When it is determined that the position is not within the predetermined range from the position of the object, the first layer is set as the frontmost layer.

According to the map switching program having the above configuration (7), it is possible to easily determine whether or not the information processing device is currently on the area where the second map is provided. It is possible to smoothly switch between the second map, which has a higher accuracy than the first map and represents a narrow area.

According to the present invention, it is possible to smoothly switch between the first map and the second map that is more accurate than the first map and represents a narrow area.

It is a schematic block diagram of the information processing apparatus which concerns on embodiment of this invention. 3 is an example of a first map and a second map displayed on the display unit of the information processing device according to the embodiment of the present invention. It is explanatory drawing which shows typically the mode of switching of the 1st layer and 2nd layer of the information processing apparatus which concerns on embodiment of this invention. It is a schematic block diagram of the modification of the information processing apparatus which concerns on embodiment of this invention. It is a flowchart which shows the flow of the map switching process of the information processing apparatus which concerns on embodiment of this invention. 6 is a second map for specifically explaining the map switching process of the information processing apparatus according to the embodiment of the present invention. 6 is a second map for specifically explaining the map switching process of the information processing apparatus according to the embodiment of the present invention.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of an information processing device 10 according to an embodiment of the present invention. The information processing device 10 is, for example, a navigation device mounted on a vehicle such as an automobile. The information processing device 10 includes a first storage unit 11, a second storage unit 12, a layer generation unit 13, a switching control unit 14, a current position acquisition unit 15, a current position drawing unit 16, and a display unit 17. , Are provided. The information processing device 10 is not limited to the navigation device mounted on the vehicle. The information processing device 10 may be a mobile terminal such as a mobile phone, a smartphone, a tab red terminal, or a laptop computer. Further, a vehicle such as an automobile may be, for example, not only four-wheeled vehicle but also three-wheeled or two-wheeled motorcycle. Furthermore, the information processing device 10 is not limited to a vehicle such as an automobile, but may be configured to be used for moving a moving body such as a drone.

The first storage unit 11 stores map data of the first map 101. The first map 101 is, for example, a map for navigation, which is used by the user. The first map 101 has, for example, two-dimensional metric plane information with an absolute position accuracy of about several meters. In the case of the present embodiment, the first map 101 is a map covering the whole of Japan. The first map 101 is composed of a plurality of meshes that divide the whole of Japan. Each of the plurality of meshes is configured to divide the ground surface into a large number of squares, for example. Each of the plurality of meshes is configured to be able to represent a specific position by using longitude and latitude. The mesh is composed of a primary mesh made by dividing the whole country and a secondary mesh made by dividing the primary mesh. The primary mesh is formed, for example, by dividing the whole country into eight equal parts vertically and horizontally. The secondary mesh is formed, for example, by dividing the primary mesh vertically and horizontally into 10 equal parts.

The second storage unit 12 is configured to be able to store map data of a plurality of second maps 102. The second map 102 is a map with higher accuracy than the first map 101. The second map 102 has, for example, highly accurate three-dimensional spatial information in the centimeter class with absolute position accuracy of about 10 cm to 15 cm. The second map 102 is composed of 3D information. Here, 3D (Dimension) information means three-dimensional digital data having vertical and horizontal height information. Each of the plurality of second maps 102 is a map of a region smaller than the first map 101 that covers the whole of Japan. That is, the second map 102 is a map that covers a part of the area covered by the first map 101. Each of the plurality of second maps 102 is configured such that the ground surface is divided into a large number of squares, for example. Note that, among the plurality of second maps 102, one second map 102 may be a map targeting the same area as the mesh of the first map 101. In other words, the one second map 102 and the primary mesh or the secondary mesh of the first map 101 may be maps of the same scale. The second map 102 is configured to be able to represent a specific position using longitude and latitude. The second map 102 is, for example, a map that can be used to support autonomous driving.

Note that each of the plurality of second maps 102 may be configured such that the second map 102 itself includes a plurality of layers. Examples of the plurality of layers include a first base layer, a second base layer, and a third base layer. In the first base layer, for example, road structure information is recorded in order to identify the current position. The first base layer can have an information amount of 5 kilobytes per 1 km, for example. In the second base layer, for example, information necessary for planning automatic driving assistance control such as signs, speed limits, curves, and slopes, and planning lane changes is recorded. In the third base layer, for example, information that frequently changes such as traffic jam, construction, parking space, etc. is recorded. In the present embodiment, in each of the plurality of second maps 102, the second map 102 itself is composed of only the first base layer.

Here, the map data includes link information regarding lines and node information regarding points. A road is represented by connecting one or more links, and the end points of the links serve as nodes. Nodes generally represent road junctions or bends. The link information includes information such as road width, distance, road type, etc., including position information of the link. In addition, the node information includes the position and type of the intersection, lane information of the intersection, and the like. Note that the object information such as links and nodes is information on two-dimensional coordinate positions in the case of the present embodiment. That is, the object information is information of which altitude is zero. In this embodiment, each mesh of the first map 101 and the first base layer of the second map 102 include object information. More specifically, the first map 101 and the second map 102 are classified into, for example, node position information, link position information, link length information, highways, national roads, prefectural roads, and city roads. It includes information indicating the case, information indicating the connection relationship between the node and the link, and the like.

The layer generation unit 13 always generates the first layer 131 and the second layer 132 so that the map around the current position is included. Specifically, the layer generation unit 13 generates, as the first layer 131, the map data of the mesh including the current position of the vehicle among the plurality of meshes of the first map 101 stored in the first storage unit 11. .. Further, the layer generation unit 13 generates, as the second layer 132, map data including the current position of the vehicle in the second map 102 stored in the second storage unit 12. When there is no map data including the current position of the vehicle in the second map 102 stored in the second storage unit 12, the layer generation unit 13 uses the blank data including the latitude and longitude information as the second layer. It is generated as 132. The blank data does not include the map.

FIG. 2 shows the first map 101 and the second map 102. FIG. 2A shows an example of the first map 101 displayed on the display unit 17. 2B shows an example of the second map 102 displayed on the display unit 17. The first map 101 and the second map 102 shown in FIG. 2 are maps when the vehicle is traveling on a highway. Incidentally, P on the map is a vehicle mark indicating the current position of the vehicle.

The switching control unit 14 controls switching between the first layer 131 and the second layer 132 and sets either the first layer 131 or the second layer 132 as the frontmost layer. More specifically, the switching control unit 14 determines the first layer 131 based on the determination unit 141 that determines whether or not there is a vehicle in the area where the second map 102 is deployed, and the determination result of the determination unit 141. Alternatively, a layer setting unit 142 that sets one of the second layers 132 as the frontmost layer. In the present embodiment, of the first layer 131 and the second layer 132, the image of the layer set to the foreground is displayed on the display unit 17. The switching control unit 14 sets the second layer 132 as the frontmost layer in order to display the second map 102 on the display unit 17 with respect to the area where the second map 102 is provided. On the other hand, the switching control unit 14 sets the first layer 131 as the frontmost layer in order to display the first map 101 on the display unit 17 with respect to the area where the second map 102 is not provided. As described above, the information processing apparatus 10 according to the present embodiment is configured to display the second map 102 on the display unit 17 with priority over the first map 101.

FIG. 3 is an explanatory diagram schematically showing how the first layer 131 and the second layer 132 are switched.

The current position acquisition unit 15 can use a GPS module, for example. The GPS module uses GPS (Global
Positioning System) information is used to periodically acquire the current vehicle position information. The GPS information includes satellite orbit information transmitted from GPS satellites and atomic clock time information. If the GPS module can receive radio waves from four or more GPS satellites, it can acquire the current three-dimensional position information of the vehicle and the accurate time of the atomic clock. That is, the position information has three-dimensional information including latitude, longitude, and altitude information. The position information may have time information in addition to latitude, longitude, and altitude. The current position acquisition unit 15 is not limited to the GPS module, and may include a gyroscope and a vehicle speed sensor. The current position acquisition unit 15 may be a communication position information acquisition module or the like that acquires position information from a communication base station.

The current position drawing unit 16 draws the vehicle mark P indicating the current position of the vehicle on at least the layer set on the foreground by the layer generation unit 13. That is, the vehicle mark P is drawn on the map of the first layer 131 or the second layer 132 set as the frontmost layer.

The current position drawing unit 16 is not limited to the configuration that draws the vehicle mark P indicating the current position of the vehicle on the layer set to the foreground by the layer generation unit 13. The current position drawing unit 16 may be configured to draw the vehicle mark P indicating the current position of the vehicle on each of the first layer 131 and the second layer 132. The current position drawing unit 16 is not limited to the current position of the vehicle and may be configured to draw the trajectory of the vehicle. When drawing the locus of the vehicle, the current position drawing unit 16 is preferably configured to draw different shapes so that the current position of the vehicle and the path the vehicle has traveled can be distinguished.

The display unit 17 is composed of, for example, a liquid crystal display or an organic EL (Electro Luminescence) display. In the case of the present embodiment, at least either the first map 101 or the second map 102 is displayed on the display unit 17. Further, the vehicle mark P is displayed on the display unit 17 on either one of the displayed first map 101 or second map 102.

The display unit 17 may be configured to display a high-precision map on the displayed second map 102. Further, the display unit 17 may be configured such that the current position of the vehicle is always arranged in the center of the screen and the first map 101 and the second map 102 are switched and displayed. For example, when the current position of the vehicle is always arranged in the center of the screen, the display unit 17 displays only one second map 102 among the plurality of second maps 102 as the vehicle moves. There are cases where it cannot be exhausted. The display unit 17 may be configured to display continuously with the mesh of the adjacent first map 101 when it cannot be displayed with only one second map 102.

The display unit 17 is not necessarily physically integrated with the first storage unit 11, the second storage unit 12, the layer generation unit 13, the switching control unit 14, the current position acquisition unit 15, or the current position drawing unit 16. It is not limited to the case. The display unit 17 may be configured to be able to display the first layer 131 or the second layer 132 via wireless or wired.

The above-described information processing device 10 is a central processing unit (CPU) having at least an arithmetic function and a control function, and a RAM (Random RAM) having a function of storing programs and data.
It is composed of an electronic device having a main memory (memory) such as an access memory. Further, the information processing device 10 may include an auxiliary storage device such as a hard disk in addition to the main storage device.

In the information processing device 10, the layer generation unit 13, the switching control unit 14, the current position acquisition unit 15, and the current position drawing unit 16 are nothing more than concretely showing the arithmetic control function by the CPU. The first storage unit 11 and the second storage unit 12 have the functions of the main storage device and the auxiliary storage device.

Further, the programs for executing various processes in the information processing device 10 may be stored in the above-mentioned memory or may be recorded in a computer-readable recording medium. Examples of the computer-readable recording medium include a hard disk, a flexible disk, a CD-ROM, an MO (Magneto-Optical) disk, a DVD-ROM, a USB (Universal Serial Bus) memory, and an SD memory card. The programs that execute various processes in the information processing device 10 may also be distributed via a communication network.

Note that the map data of the first map 101 according to the present embodiment is stored in the first storage unit 11, but the information processing apparatus 10 does not necessarily store the map data of the first map 101 in its own device. You don't have to. For example, as shown in FIG. 4, the information processing apparatus 10A may include the map information acquisition unit 18 that acquires the map data of the first map 101 from a predetermined external server 20. Here, FIG. 4 is a schematic configuration diagram of an information processing apparatus 10A of a modified example of the present embodiment. That is, the first map 101 may be geographical information stored in another device such as the external server 20. In other words, the information processing apparatus 10A may be configured to include the map information acquisition unit 18 that can communicate with the external server 20 via a communication network such as the Internet. In this case, the layer generation unit 13 generates the map data of the first map 101 received from the external server 20 in the first layer 131. Further, the map information acquisition unit 18 may be configured to acquire not only the map data of the first map 101 but also the map data of the second map 102 from the external server 20. In a broad sense, the map information acquisition unit 18 may be configured to acquire the map data of the first map 101 and the second map 102 regardless of whether the information processing device 10 or 10A is inside or outside.

Next, the map switching process executed by the information processing device 10 will be described with reference to FIGS. FIG. 5 is a flowchart showing the flow of map switching processing. The map switching process of this embodiment is periodically executed at predetermined time intervals. The predetermined time interval is an interval at which the current position acquisition unit 15 acquires the current position of the vehicle, and is, for example, one second. 6 and 7 show the second map 102 for specifically explaining the map switching process. The second map 102 shown in FIGS. 6 and 7 is a 3D map. 6 and 7, N is a node, L is a link, B is a building such as a building, and D is a road.

First, the information processing device 10 converts the current position of the vehicle into the coordinate position of the 3D information (step S10). That is, the three-dimensional longitude, latitude, and height information acquired by the current position acquisition unit 15 is converted into a three-dimensional coordinate position so that the second map 102 can be specified. The three-dimensional coordinate position of the vehicle is the coordinate position of the vehicle mark P on the display in FIGS. 6 and 7.

Next, in the information processing device 10, the foot position PF of the perpendicular line drawn from the coordinate position of the 3D information of the vehicle to the ground is within the predetermined range R from the position of the object in the map data of the second map 102. It is determined whether or not (step S20). Here, the object means an object such as a node N or a link L, for example.

When the position PF of the foot of the perpendicular is within the predetermined range R from the position of the object in the map data of the second map 102 (step S20: YES), the information processing apparatus 10 determines that the vehicle is the second map 102. It is determined that the second layer 132 is on the covered area (step S30), and the second layer 132 is set as the frontmost layer (step S40). For example, as shown in FIG. 6, when the perpendicular foot position PF is within a predetermined range R from the positions of the links L1 and L2 in the map data of the second map 102, the second layer 132 is placed in the foreground. Set as a layer of.

On the other hand, when the perpendicular foot position PF is not within the predetermined range R from the object position in the map data of the second map 102 (step S20: NO), the information processing apparatus 10 determines that the vehicle is the second map. It is determined that the first layer 131 is not on the area covered by 102 (step S50), and the first layer 131 is set as the frontmost layer (step S60). For example, as shown in FIG. 7, when the foot position PF of the vertical line is not within the predetermined range R from the object position in the map data of the second map 102, the first layer 131 is set as the frontmost layer. Set.

As described above, in the present embodiment, when there is a vehicle in the area covered by the second map 102, it is considered that the object of the second map 102 exists in the predetermined range R centered on the vehicle. ing. That is, it is determined whether or not the current position of the vehicle is within the area covered by the second map 102 by a simple determination of the presence or absence of an object. The predetermined range R depends on the accuracy of the position information of the vehicle acquired by the current position acquisition unit 15, but the distance from the foot PF of the perpendicular is a circle with a radius of several meters to several tens of meters on the map. It is preferable to set it. The outer shape of the predetermined range R is not limited to the case of being set to be circular. The outer shape of the predetermined range R may be set to an elliptical shape, an oval shape, a rectangular shape, a polygonal shape, or the like that is long along the traveling direction of the vehicle. Further, although the object is two-dimensional in the present embodiment, when the object is three-dimensional, the outer shape of the predetermined range R is, for example, hemispherical or semi-elliptical so that the existence of the object can be determined. It may be set as a semi-rotating body or a polyhedron.

Next, the information processing device 10 draws the vehicle mark P on the map of the first layer 131 or the second layer 132 set as the frontmost layer and displays it on the display unit 17 (step S70). The display unit 17 sets the vehicle so that the longitude and latitude of the vehicle acquired by the current position acquisition unit 15 match the longitude and latitude included in the map information of the first layer 131 or the map information of the second layer 132. The position of is displayed by overlapping it on the map.

As described above, the information processing device 10 according to the present embodiment has a configuration including the first map 101 and the second map 102 that has a higher accuracy than the first map 101 and represents a narrow area, With a relatively simple method, it can be determined whether the vehicle is currently on the area where the second map 102 is located. Therefore, the first map 101 and the second map 102 can be smoothly switched.

Whether or not the vehicle is on the second map 102 is determined by determining the boundary of the area where the second map 102 is provided without using the map switching process (see FIG. 5) of the present embodiment described above. It is also possible to judge. However, in the case of this method, it is necessary to compare all the coordinate positions of the objects held by the map data of the second map 102 with the current position of the vehicle, and therefore the processing is complicated and requires a huge amount of time. That is, unlike the map switching process of the present embodiment, it is not possible to smoothly determine whether the vehicle is on the second map 102.

In addition, in the present embodiment, the second map 102 is a map with higher accuracy than the first map 101 and is a map of an area narrower than the first map 101. However, the second map 102 is not limited to this. Broadly speaking, the accuracy of the first map 101 and the second map 102 may be different. That is, the switching control unit 14 may switch between the first map 101 and the second map 102 having different accuracy under the conditions shown in FIG. It is possible to easily switch the display of different maps according to the purpose.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and embodiments to the embodiments of the present invention are possible without departing from the gist of the present invention. Configurations that can be modified and are accompanied by such variations and modifications are also included in the technical scope of the present invention.

10 information processing device 11 first storage unit 12 second storage unit 13 layer generation unit 14 switching control unit 15 current position acquisition unit 16 current position drawing unit 17 display unit 18 map information acquisition unit 101 first map 102 second map 131 First Layer 132 Second Layer

Claims (7)

A current position acquisition unit that acquires the current position,
A map information acquisition unit that acquires first map information;
A second storage unit that stores second map information that is more accurate than the first map information and that is narrower than the area of the first map information;
A layer generation unit that respectively generates a first layer that represents the first map information that includes the current position, and a second layer that represents the second map information that includes the current position;
A switching control unit that controls switching between the first layer and the second layer generated by the layer generation unit and sets either the first layer or the second layer as the frontmost layer;
A display unit for displaying the frontmost layer,
The second map information is composed of 3D information including an object having a plurality of nodes in which road information is embedded and a link connecting adjacent nodes as coordinate position information ,
The switching control unit,
The current position is converted to the coordinate position in the 3D information, and the position of the foot of the perpendicular line drawn from the converted coordinate position to the ground is determined from the position of the object included in the second map information. A determination unit for determining whether or not it is within the range,
When the determination unit determines that the position of the foot of the perpendicular is within the predetermined range from the position of the object, the second layer is set as the frontmost layer, and the foot of the perpendicular is set. A position setting section that sets the first layer as the foreground layer when it is determined that the position is not within the predetermined range from the position of the object. apparatus. Further comprising a first storage unit for storing the first map information,
The information processing apparatus according to claim 1, wherein the map information acquisition unit acquires the first map information from the first storage unit. The current position drawing unit that draws the current position by superimposing the current position on the foreground layer set by the switching control unit,
The information processing apparatus according to claim 1, wherein the display unit displays the foreground layer drawn by the current position drawing unit. The map information acquisition unit can communicate with an external server having the first map information,
The information processing apparatus according to any one of claims 1 to 3, wherein the map information acquisition unit acquires the first map information from the external server. The outer shape of the predetermined range is any one of a hemispherical shape, a semi-elliptical shape, a semi-rotating body or a polyhedron, or an elliptical shape, an oval shape, a rectangular shape or a polygonal shape that is long along the traveling direction of the vehicle. The information processing apparatus according to claim 4. A map switching method in which an information processing device switches and displays map information,
The map information includes first map information and second map information that is more accurate than the first map information and is narrower than a region of the first map information.
The second map information is composed of 3D information including an object having a plurality of nodes in which road information is embedded and a link connecting adjacent nodes as coordinate position information ,
A current position acquisition step of acquiring the current position of the information processing device,
A first map information acquisition step of acquiring the first map information;
A second map information acquisition step of acquiring the second map information;
A layer generation step of respectively generating a first layer representing the first map information including the current position and a second layer representing the second map information including the current position,
A switching control step of controlling switching of the first layer and the second layer generated by the layer generating step, and setting either the first layer or the second layer as a frontmost layer;
A display step of displaying the frontmost layer set by the switching control step on a predetermined display unit,
The switching control step,
The current position is converted to the coordinate position in the 3D information, and the position of the foot of the perpendicular line drawn from the converted coordinate position to the ground is determined from the position of the object included in the second map information. A determination step of determining whether or not it is within the range,
When it is determined by the determination step that the position of the foot of the perpendicular is within the predetermined range from the position of the object, the second layer is set as the frontmost layer, and the foot of the perpendicular is set. When it is determined that the position of is not within the predetermined range from the position of the object, a layer setting step of setting the first layer as the foreground layer is performed, and the map switching is performed. Method. A map switching program in which an information processing device switches and displays map information,
The map information includes first map information and second map information that is more accurate than the first map information and is narrower than a region of the first map information.
The second map information is composed of 3D information including an object having a plurality of nodes in which road information is embedded and a link connecting adjacent nodes as coordinate position information ,
In the information processing device,
A current position acquisition step of acquiring the current position of the information processing device;
A first map information acquisition step of acquiring the first map information;
A second map information acquisition step of acquiring the second map information;
A layer generation step of respectively generating a first layer representing the first map information including the current position and a second layer representing the second map information including the current position,
A switching control step of controlling switching between the first layer and the second layer, and setting either the first layer or the second layer as the frontmost layer;
A display step of displaying the frontmost layer set by the switching control step on a predetermined display unit,
The switching control step,
The current position is converted into the coordinate position in the 3D information, and the position of the foot of the perpendicular line drawn from the converted coordinate position to the ground is determined from the position of the object included in the second map information. A determination step of determining whether or not it is within the range,
When it is determined by the determination step that the position of the foot of the perpendicular is within the predetermined range from the position of the object, the second layer is set as the frontmost layer, and the foot of the perpendicular is set. When it is determined that the position of is not within the predetermined range from the position of the object, a layer setting step of setting the first layer as the foreground layer is performed, and the map switching is performed. program.

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