JP2019045212A - Information processing device, map switching method, and map switching program - Google Patents

Abstract

To enable a first map and a second map showing narrow areas with higher accuracy to be switched smoothly.SOLUTION: An information processing device 10 comprises: a current position acquisition unit 15; a first storage unit 11 for storing a first map 101; a second storage unit 12 for storing a second map 102; a switching control unit 14 for switching between a first layer 131 and a second layer 132 representing each of the first map 101 and the second map 102; and a display unit 17 for displaying a forefront layer. The switching control unit 14 sets the second layer 132 to the forefront layer when the foot of perpendicular of the current position exits within a prescribed range of objects of the second map 102.SELECTED DRAWING: Figure 1

Description

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

  2. Description of the Related Art Conventionally, with regard to map display of a navigation system, there is known a navigation device that switches to a scale of a wide-area area map when the vehicle position reaches in front of an intersection (for example, Patent Document 1).

  There is also known a navigation device that stores map data in an internal memory and stores map data representing details in an external memory (for example, Patent Document 2). This navigation device switches the map data from the built-in memory or the external memory according to the position information, and displays the map.

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

  By the way, in recent years, it is considered to perform automatic driving support using a high accuracy map. However, under the present circumstances, for example, in Japan, it is difficult to cover all regions of the whole country with high precision maps. Therefore, it is necessary to switch between and use a low accuracy map and a high accuracy map.

  However, there is no known configuration for smoothly switching between a low accuracy map and a high accuracy map to display the current position.

  The present invention has been made in view of the above circumstances, and an example of the problem is a first map, and a second map that is more accurate and represents a narrower area than the first map. An information processing apparatus, a map switching method, and a map switching program that can switch smoothly.

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

  The current position acquisition unit acquires the current position. The map information acquisition unit acquires first map information. The second storage unit stores second map information of an area that is more accurate than the first map information and narrower than the area of the first map information. The layer generation unit generates a first layer representing first map information including the current position, and a second layer representing second map information including the current position. The switching control unit controls switching of 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 a link 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 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 unit sets the second layer as the foremost layer 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, and the layer setting unit If 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 apparatus having the configuration of (1), it is possible to easily determine whether the information processing apparatus is currently on the area in which the second map is deployed. It is possible to smoothly switch between a second map that is more accurate and represents a narrower area than the first map.

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

  According to the information processing apparatus having the configuration of (2), since the first map information is provided in the information processing apparatus, the first map can be rapidly displayed.

(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). The current position drawing unit draws the current position superimposed on the foremost layer set by the switching control unit. The display unit displays the foremost layer drawn by the current position drawing unit.
According to the information processing apparatus having the configuration of (3), the current position of the information processing apparatus is displayed on the display unit together with the map, and thus the information processing apparatus is suitable as a navigation apparatus.

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

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

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

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

  The second map information is composed of the 3D information including the object as information of coordinate position. The determination unit converts the current position into the coordinate position in the 3D information, and the position of the foot of the perpendicular drawn from the converted coordinate position relative to the ground is a predetermined range from the position of the object included in the second map information Determine if it is inside.

  According to the information processing apparatus of the configuration of (5), it can be easily determined whether the information processing apparatus is currently on the area in which the second map is deployed.

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

  The map information includes first map information, and second map information of an area that is more accurate than the first map information and 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 a link 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 apparatus. The first map information acquisition step acquires first map information. The second map information acquisition step acquires second map information. The layer generation step generates a first layer representing first map information including the current position, and a second layer representing a second map including the current position. The switching control step controls switching of the first layer and the second layer generated in the layer generating step, and sets either the first layer or the second layer as the frontmost layer. The display step displays the top 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. In the determination step, it is determined whether or not the position of the perpendicular foot 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 the determination step determines that the position of the perpendicular foot is within the predetermined range from the position of the object, the second layer is set as the top layer, and the position of the perpendicular foot is determined. Is determined not to be 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 configured as described in (6) above, it can be easily determined whether the information processing apparatus is currently on the area where the second map is deployed. It is possible to smoothly switch between a second map that is more accurate and represents a narrower area than the first map.

  (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 | mode.

  The map information includes first map information, and second map information of an area that is more accurate than the first map information and 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 a link connecting adjacent nodes.

  The map switching program executes the current position acquisition step, the first map information acquisition step, the second map information acquisition step, the layer generation step, the switching control step, and the display step on the information processing apparatus. Let

  The current position acquisition step acquires the current position of the information processing apparatus. The first map information acquisition step acquires first map information. The second map information acquisition step acquires second map information. The layer generation step generates a first layer representing first map information including the current position, and a second layer representing a second map including the current position. The switching control step controls switching between the first layer and the second layer to set either the first layer or the second layer as the frontmost layer. The display step displays the top 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. In the determination step, it is determined whether or not the position of the perpendicular foot 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, if it is determined in 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 position of the foot of the perpendicular is If 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 configured as described in (7) above, it is possible to easily determine whether the information processing apparatus is currently on the area where the second map is deployed. It is possible to smoothly switch between a second map that is more accurate and represents a narrower area than the first map.

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

  Hereinafter, embodiments of the present invention will be described using the drawings.

  FIG. 1 is a schematic block diagram of an information processing apparatus 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 a car. The information processing apparatus 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. And. Note that the information processing device 10 is not limited to only the navigation device mounted on a vehicle. The information processing apparatus 10 may be a mobile terminal such as a mobile phone, a smartphone, a tabled terminal, or a laptop computer. In addition, a vehicle such as a car may be, for example, not only four wheels but also three or two-wheeled motorcycles. Furthermore, the information processing apparatus 10 is not limited to only a vehicle such as a car, and may be configured to be used for moving a mobile 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, and is a map used by the user. The first map 101 has, for example, two-dimensional plane information of metric level with an absolute position accuracy of about several meters. In the case of the present embodiment, the first map 101 is a map that covers the whole of Japan. The first map 101 is composed of a plurality of meshes obtained by dividing the whole of Japan. Each of the plurality of meshes is configured to divide the ground surface into a number of squares, for example. Each of the plurality of meshes is configured to be able to express a specific position 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 parts vertically and horizontally. The secondary mesh is formed, for example, by dividing the primary mesh into 10 equal parts in the vertical and horizontal directions.

  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, high-accuracy three-dimensional spatial information of a centimeter class such as an 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 an area narrower than the first map 101 covering the whole of Japan. That is, the second map 102 is a map that targets a partial area of the area covered by the first map 101. Each of the plurality of second maps 102 is, for example, configured to divide the ground surface into a number of squares. Note that, among the plurality of second maps 102, one second map 102 may be a map that targets the same area as the mesh of the first map 101. In other words, one second map 102 and the primary mesh or 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 automatic driving.

  In each of the plurality of second maps 102, the second map 102 itself may be configured as a group in 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, information on the structure of the road is recorded to specify the current position. The first base layer may have, for example, an information volume of 5 kilobytes per kilometer. In the second base layer, for example, control of automatic driving support such as signs, speed limits, curves, or slopes, and information necessary for planning a lane change are recorded. In the third base layer, for example, frequently changing information such as traffic congestion, 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 configured of only the first base layer.

  Here, the map data includes link information on lines and node information on points. A road is represented by connecting one or more links, and the end points of the links become nodes. Nodes generally represent road junctions or bend points. The link information includes information such as road width, distance, road type, etc., starting with link position information. The node information also includes the position and type of the intersection, lane information of the intersection, and the like. Object information such as links and nodes is information of two-dimensional coordinate position in the case of the present embodiment. That is, object information is information whose altitude is zero. In the present embodiment, object information is included in each mesh of the first map 101 and the first base layer of the second map 102, respectively. More specifically, the first map 101 and the second map 102 may be, for example, node position information, link position information, link length information, and highways, national roads, prefectural roads, and city roads. It includes case information to indicate, information indicating the connection relationship between nodes and links, and the like.

  The layer generation unit 13 always generates the first layer 131 and the second layer 132 so that a map around the current position is included. Specifically, the layer generation unit 13 generates map data of a 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 as the first layer 131. . Further, the layer generation unit 13 generates map data including the current position of the vehicle in the second map 102 stored in the second storage unit 12 as a second layer 132. When the second map 102 stored in the second storage unit 12 does not have map data including the current position of the vehicle, the layer generation unit 13 performs a second layer of blank data including latitude and longitude information. Generate as 132. Blank data does not include maps.

  A first map 101 and a second map 102 are shown in FIG. FIG. 2A shows an example of the first map 101 displayed on the display unit 17. Further, FIG. 2 (b) 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. P on the map is a vehicle mark indicating the current position of the vehicle.

  The switching control unit 14 controls switching of the first layer 131 and the second layer 132 to set 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 result of the determination unit 141 that determines whether there is a vehicle in the area in which the second map 102 is deployed, and the determination unit 141. Or a layer setting unit 142 which sets any 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 forefront is displayed on the display unit 17. The switching control unit 14 sets the second layer 132 as the foremost layer in order to display the second map 102 on the display unit 17 in the area in which the second map 102 is deployed. On the other hand, the switching control unit 14 sets the first layer 131 as the foremost layer in order to display the first map 101 on the display unit 17 in the area where the second map 102 is not deployed. As described above, in the information processing apparatus 10 according to the present embodiment, the second map 102 is displayed on the display unit 17 with priority given to the first map 101.

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

The current position acquisition unit 15 can use, for example, a GPS module. GPS module is GPS (Global
Based on Positioning System information, the current position information of the vehicle is periodically acquired. GPS information includes orbit information of satellites transmitted from GPS satellites and time information of atomic clocks. If the GPS module can receive radio waves from four or more GPS satellites, it can obtain the current three-dimensional position information of the vehicle and the precise time of the atomic clock. That is, the position information holds three-dimensional information including latitude, longitude, and altitude information. In addition to the latitude, longitude, and altitude, the position information may hold time information. 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 the communication base station.

  The current position drawing unit 16 draws a vehicle mark P indicating the current position of the vehicle on at least the layer set on the foremost side 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 in which the vehicle mark P indicating the current position of the vehicle is drawn on the layer set on the foremost side by the layer generation unit 13. The current position drawing unit 16 may be configured to draw a vehicle mark P indicating the current position of the vehicle on each of the first layer 131 and the second layer 132. Further, the current position drawing unit 16 is not limited to the current position of the vehicle, and may be configured to be able to draw a trajectory of the vehicle. When drawing the trajectory of the vehicle, the current position drawing unit 16 is preferably configured to draw in different shapes so that the current position of the vehicle and the trajectory that the vehicle has passed can be distinguished.

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

  The display unit 17 may be configured to be displayed on the displayed second map 102 as being a high precision map. In addition, the display unit 17 may be configured such that the current position of the vehicle is always arranged at 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 at 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 times when you can not finish. When the display unit 17 can not be displayed by only one second map 102, the display unit 17 may be configured to continuously display the mesh of the adjacent first map 101.

  The display unit 17 is physically and integrally configured 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. The case is not limited. 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 apparatus 10 is a central processing unit (CPU) having at least an arithmetic function and a control function, and a RAM (Random (Random) having a function of storing a program and data.
It is comprised from the electronic device which has the main memory (memory) which consists of Access Memory etc. In addition to the main storage device, the information processing apparatus 10 may have an auxiliary storage device such as a hard disk.

  In the information processing apparatus 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 the ones specifically 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 unit and the auxiliary storage unit.

  Moreover, the program for executing various processes in the information processing apparatus 10 may be stored in a computer-readable recording medium in addition to being stored in the memory described above. Examples of the computer readable recording medium include a hard disk, a flexible disk, a CD-ROM, a MO (Magneto-Optical) disk, a DVD-ROM, a Universal Serial Bus (USB) memory, and an SD memory card. Programs for executing various processes in the information processing apparatus 10 may also be distributed via a communication network.

  Although the map data of the first map 101 in the present embodiment is stored in the first storage unit 11, the information processing apparatus 10 necessarily stores the map data of the first map 101 in its own device. You do not have to. For example, as shown in FIG. 4, the information processing apparatus 10A may include the map information acquisition unit 18 that acquires 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 according to a modification 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 position information acquisition unit 18 capable of communicating with the external server 20 via a communication network such as the Internet. In this case, the layer generation unit 13 generates map data of the first map 101 received from the external server 20 in the first layer 131. Furthermore, the map information acquisition unit 18 may be configured to acquire not only the first map 101 but also the map data of the second map 102 from the external server 20. Also, in a broad sense, the map information acquisition unit 18 may be configured to acquire map data of the first map 101 and the second map 102 regardless of whether inside or outside the information processing apparatus 10 or 10A.

  Next, the map switching process performed by the information processing apparatus 10 will be described using FIGS. 5 to 7. FIG. 5 is a flowchart showing the flow of the map switching process. The map switching process of the present 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, an interval of one second. 6 and 7 show a second map 102 for specifically explaining the map switching process. The second map 102 shown in FIGS. 6 and 7 is a map of 3D display. 6 and 7, N indicates a node, L indicates a link, B indicates a building such as a building, and D indicates 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 three-dimensional coordinate positions so that the second map 102 can be identified. 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 apparatus 10, the position PF of the foot of the perpendicular drawn to the ground from the coordinate position of the 3D information of the vehicle 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, for example, an object such as a node N or a link L.

  In the information processing apparatus 10, 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 vehicle has the second map 102 It is determined that the area is on the area to be covered (step S30), and the second layer 132 is set as the top layer (step S40). For example, as shown in FIG. 6, when the position PF of the foot of the perpendicular 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 foremost Set as a layer of

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

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

  Next, the information processing apparatus 10 draws the vehicle mark P on the map of the first layer 131 or the second layer 132 set as the top layer, and displays the vehicle mark P 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. Display the position of as superimposed on the map.

  As described above, the information processing apparatus 10 according to the present embodiment includes the first map 101 and the second map 102 that has a higher accuracy and is narrower than the first map 101. In a relatively simple manner, it can be determined whether the vehicle is currently on the area where the second map 102 is deployed. Therefore, the first map 101 and the second map 102 can be switched smoothly.

  Whether the vehicle is on the second map 102 by judging the boundary of the area in which the second map 102 is deployed 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, the map data of the second map 102 has to compare all the coordinate positions of the held objects with the current position of the vehicle, so the processing becomes complicated and takes a lot of time. That is, as in the map switching process of the present embodiment, it can not be smoothly determined whether the vehicle is on the second map 102.

  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. In a broad sense, 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 accuracies under the conditions shown in FIG. The display of different maps can be easily switched depending on the application.

  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 or changes may be made to the embodiments of the present invention without departing from the scope of the present invention. Modifications can be made, and configurations with such modifications and changes are also included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Information processing apparatus 11 1st memory | storage part 12 2nd memory | storage part 13 Layer production | generation part 14 Switch control part 15 Current position acquisition part 16 Current position drawing part 17 Display part 18 Map information acquisition part 101 1st map 102 2nd map 131 first layer 132 second layer

Claims (7)

A current position acquisition unit for acquiring the current position;
A map information acquisition unit that acquires first map information;
A second storage unit that stores second map information of an area that is more accurate than the first map information and is narrower than the area of the first map information;
A first layer representing the first map information including the current position, and a layer generation unit generating a second layer representing the second map information including 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;
Equipped with
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 the adjacent nodes.
The switching control unit
A determination unit that determines whether or not the position of the foot of the perpendicular 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;
If 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 A layer setting unit configured to set the first layer as a foremost layer when it is determined that the position is not within the predetermined range from the position of the object;
An information processing apparatus comprising: It further comprises a first storage unit for storing the first map information,
The map information acquisition unit acquires the first map information from the first storage unit.
An information processing apparatus according to claim 1, characterized in that. The image processing apparatus further includes a current position drawing unit that draws the current position so as to overlap the layer on the forefront set by the switching control unit,
The display unit displays the top layer drawn by the current position drawing unit.
The information processing apparatus according to claim 1 or 2, characterized in that: The map information acquisition unit can mutually communicate with an external server provided with the first map information,
The map information acquisition unit acquires the first map information from the external server.
The information processing apparatus according to any one of claims 1 to 3, characterized in that: The second map information is composed of the 3D information including the object as information of coordinate position,
The determination unit converts the current position into a coordinate position in the 3D information, and the converted object includes the position of the foot of a perpendicular drawn from the coordinate position with respect to the ground in the second map information. It is determined whether or not it is within the predetermined range from the position of
The information processing apparatus according to any one of claims 1 to 4, characterized in that: A map switching method in which an information processing apparatus switches and displays map information, and
The map information is
First map information,
Second map information of an area which is more accurate than the first map information and narrower than the area of the first map information;
Equipped with
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 the adjacent nodes.
A current position acquisition step of acquiring a current position of the information processing apparatus;
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 generating step of generating a first layer representing the first map information including the current position, and a second layer representing the second map including the current position;
A switching control step of controlling switching of the first layer and the second layer generated in the layer generation step to set either the first layer or the second layer as the frontmost layer;
A display step of displaying the topmost layer set in the switching control step on a predetermined display unit;
Equipped with
The switching control step is
A determination step of determining whether the position of the perpendicular foot 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;
When it is determined in 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 A layer setting step of setting the first layer as the frontmost layer when it is determined that the position is not within the predetermined range from the position of the object;
A map switching method comprising: It is a map switching program that the information processing apparatus switches and displays map information, and
The map information is
First map information,
Second map information of an area which is more accurate than the first map information and narrower than the area of the first map information;
Equipped with
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 the adjacent nodes.
In the information processing apparatus,
A current position acquisition step of acquiring a current position of the information processing apparatus;
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 generating step of generating a first layer representing the first map information including the current position, and a second layer representing the second map including the current position;
A switching control step of controlling switching between the first layer and the second layer to set either the first layer or the second layer as the frontmost layer;
A display step of displaying the topmost layer set in the switching control step on a predetermined display unit;
To run
The switching control step is
A determination step of determining whether the position of the perpendicular foot 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;
When it is determined in 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 A layer setting step of setting the first layer as the frontmost layer when it is determined that the position is not within the predetermined range from the position of the object;
A map switching program comprising:

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