JP2013029330A - Navigation device, navigation method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user who has passed over his destination to visually grasp a locational relation between the destination and a current location.SOLUTION: For example, when a vehicle equipped with a navigation device has passed over a destination, the navigation device displays a bird's-eye view superposed on a route and a map on a display. By superposition display of the bird's-eye view, the navigation device can enable a user to visually grasp locational relation between a current location of the vehicle and the destination.

Description

  The present invention relates to a navigation device, a navigation method, and a program.

  Many mobile bodies (for example, vehicles) are equipped with navigation devices that guide the user to the vicinity of the destination. This navigation device identifies the current position of a vehicle based on position information derived by wireless communication with a GPS (Global Positioning System) satellite and direction information from a gyro sensor, and displays a route to the periphery of the destination on a display Or guide the user by voice.

  Here, since the user does not know the exact location of the destination (for example, a building name or landmark), the user uses the navigation device. May pass the destination.

  Assuming such a case, there is a navigation device that redisplays a route to a destination that has passed. However, even if the route is displayed again, the destination that has already passed may be outside the display area of the display (may not be displayed on the display). For this reason, the user cannot visually grasp the positional relationship between the destination that has passed and the current position, and may have passed the destination again.

  In order to solve this problem, Patent Document 1 discloses a car navigation system that can notify the user that the vehicle has passed the destination by changing the warning sound between when the current position is approaching the destination and when the current location is moving away. A system has been proposed.

Utility Model Registration No. 2578720

  In the navigation system described in Patent Literature 1, the user can be notified by notification that the vehicle has passed the destination. However, the user cannot grasp the positional relationship between the destination that has passed and the current position. For this reason, there existed a possibility that a user might pass the destination again.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to allow a user to grasp the positional relationship between a destination and a current position when the user passes the destination. To do.

In order to achieve the above object, a navigation device according to the first aspect of the present invention provides:
Mounted on mobile objects,
A destination storage unit for storing the destination;
A moving body position specifying unit for specifying a current position of the moving body;
A route display unit for displaying a route from the current position specified by the mobile body position specifying unit to a destination stored in the destination storage unit together with a map on a display;
A passage determination unit for determining whether the current position specified by the mobile body position specifying unit has passed the destination stored in the destination storage unit;
A bird's-eye view including the current position and the destination that has passed when the current position is determined to have passed through the destination by the passage determination unit and looking down on the destination from above the current position Is superimposed on the display of the route and map on the display on which the route and map are displayed by the route display unit;
It is characterized by having.

The passage determination unit is, for example,
A linear distance calculation unit that calculates a linear distance between the destination stored in the destination storage unit and the current position specified by the mobile object position specification unit;
A distance passage determination unit that determines that the current position has passed the destination when the linear distance calculated by the linear distance calculation unit is the shortest distance and then increases;
May be provided.

For example, an in-distance determination unit that determines whether the current position specified by the mobile body position specifying unit exists within a predetermined distance starting from the destination stored in the destination storage unit;
A stop determination unit that determines whether the moving body is in a stopped state;
With
The distance passage determination unit is, for example,
When the in-distance determining unit determines that the current position exists within the predetermined distance, and the stop determining unit determines that the moving body is not in a stopped state, the linear distance calculating unit calculates You may provide the determination start part which starts the determination whether the said linear distance became the said shortest distance.

For example, the superimposed display unit is
When it is determined that the current position has passed the destination by the distance passage determination unit, the linear distance calculated by the linear distance calculation unit increases as the linear distance increases. A depression angle adjusting means for reducing the depression angle of the bird's eye view may be provided.

For example, the first mode determination for determining whether the display mode of the map displayed on the display by the route display unit is a heading-up mode in which the traveling direction of the moving body is displayed on the upper side of the display Part
For example, the superimposed display unit is
When the first mode determination unit determines that the heading-up mode is selected, the bird's-eye view is displayed on a screen smaller than the map displayed by the route display unit and at the bottom of the display. You may provide the screen lower part superimposition display part which carries out a superposition display.

The screen lower superimposed display section is, for example,
A left / right determination unit for determining whether the destination stored in the destination storage unit is located on the left side or the right side with respect to the traveling direction of the moving body;
When the left and right determination unit determines that the destination is located on the left side, the bird's eye view is superimposed on the right side of the lower part of the display, while when the destination is determined to be located on the right side, A left-right switching display unit that superimposes and displays the bird's-eye view on the left side of the lower part of the display;
May be provided.

For example, it is determined whether the display mode of the map displayed on the display by the route display unit is an overhead view mode simulating a view seen in the traveling direction from above the moving body in an overhead view format. Mode decision unit
For example, the superimposed display unit is
When the second mode determination unit determines that the bird's-eye view mode is selected, the bird's-eye view is displayed on a screen smaller than the map displayed by the route display unit and on the upper portion of the display. You may provide the screen upper part superimposition display part which carries out a superposition display.

For example, the superimposed display unit is
When it is determined by the distance passage determination unit that the current position has passed the destination, and the in-distance determination unit determines that the current position does not exist within the predetermined distance, it is superimposed on the display. You may provide the display stop part which stops the display of the said bird's-eye view currently displayed.

Further, the navigation method according to the second aspect of the present invention includes:
A passage determination step for determining whether the current position of the moving body has passed the destination;
When the current position is determined to have passed through the destination by the passage determination step, a map including the current position and the destination that has passed is displayed as a route and a map from the current position to the destination. A superimposed display step of superimposing the route and the map on the display being displayed,
including.

A program according to the third aspect of the present invention is:
On the computer,
A passage determination function for determining whether the current position of the moving body has passed the destination;
When the current position is determined to have passed the destination by the passage determination function, a map including the current position and the destination that has passed is displayed as a route and a map from the current position to the destination. A superimposed display function for superimposing and displaying the route and the map on the display,
Is to realize.

  ADVANTAGE OF THE INVENTION According to this invention, when a user passes the destination, it can enable a user to grasp | ascertain the positional relationship between the destination and the present position visually.

It is a block diagram which shows the structure of the navigation apparatus which concerns on this embodiment. It is a flowchart of the main process of the navigation apparatus shown in FIG. It is a flowchart of the superimposition display process of the navigation apparatus shown in FIG. It is a figure which shows the relationship between a vehicle, the destination, a threshold value, and the minimum linear distance. It is a figure which shows the display display after the destination passage of the navigation apparatus shown in FIG. 1 (at the time of head-up mode). It is a figure which shows the display display after the destination passage of the navigation apparatus shown in FIG. 1 (at the time of overhead view mode).

  Hereinafter, a navigation device according to an embodiment of the present invention will be described with reference to the drawings.

  The configuration of the navigation device 1 of the present embodiment will be described with reference to FIG. The navigation device 1 includes an information processing unit 2, a position detection unit 3, an information storage unit 4, and a user interface unit 5, and is mounted on a moving body such as a vehicle or a ship. In the following description, it is assumed that the navigation device 1 is mounted on a vehicle.

  The information processing unit 2 receives various types of information transmitted from the position detection unit 3, the information storage unit 4, and the user interface unit 5, processes the received information, and displays the processed information as the information storage unit 4. Or transmitted to the user interface unit 5.

  The information processing unit 2 includes an arithmetic device 21, a sensor interface 22, a communication interface 23, an image / audio processing device 24, and a communication circuit such as a bus line that connects these components to each other.

  The arithmetic unit 21 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and uses various information received via the sensor interface 22 and the communication interface 23 to perform arithmetic processing. (For example, a main processing (FIG. 2) described later).

  The sensor interface 22 is an interface that receives information from the position detection unit 3 via the bus line and appropriately supplies the information to the arithmetic device 21. The communication interface 23 is an interface that performs mutual communication with the information storage unit 4 and the user interface unit 5 via a bus line. The image / audio processing device 24 is a device that processes sound output from the speaker 51 and information displayed on the display 52.

  The position detection unit 3 detects the current position, vehicle speed, and road information of the vehicle on which the navigation device 1 is mounted, and includes a GPS sensor 31, a gyro sensor 32, a speed sensor 33, and a road information reception sensor 34. .

  The GPS sensor 31 is a sensor that indicates the current position of the vehicle by coordinate information (for example, information including latitude and longitude). The gyro sensor 32 is a sensor that detects the angle and angular velocity of the vehicle. The speed sensor 33 is a sensor that detects the speed of the vehicle. The road information receiving sensor 34 is a sensor that receives information indicating road conditions.

  The information storage unit 4 stores a map displayed on the display 52 and a destination set by the user, and includes a map information storage device 41 and a destination storage memory 42.

  The map information storage device 41 is a device that stores a map, a road sign, a signal, an intersection name, an index such as a famous building, a threshold value R used in the main process (FIG. 2), and the like. The map stored in the map information storage device 41 can be used for normal navigation or when displaying a view in the direction of travel from the sky of the vehicle (for example, a height of 30 m from the vehicle) in a bird's eye view format, When the vehicle passes through the set destination, it is a map used by the computing device 21 when displaying a bird's eye view of the destination looking down from above the vehicle. The map also includes latitude, longitude, and altitude information. Further, the map includes each piece of information necessary for displaying a main building or the like in a three-dimensional manner. The destination storage memory 42 is a memory that stores coordinate information of a destination set by the user.

  The user interface unit 5 is an interface that accepts an operation instructed by the user and provides information to the user, and includes a speaker 51, a display 52, and a control device 53.

  The speaker 51 outputs information required by the user by voice or electronic sound. The display 52 displays a route from the current position to the destination, a map, and the like. The control device 53 is a device that receives setting changes and destination settings from the user.

  Next, the operation of the navigation device 1 having the configuration shown in FIG. 1 will be described.

  When the user sets a destination using the control device 53, the calculation device 21 specifies the coordinate information of the destination from the map stored in the map information storage device 41 and stores it in the destination storage memory 42. . Thereafter, the computing device 21 calculates a route from the current position to the destination using the coordinate information of the current position, the coordinate information of the destination, and the map stored in the map information storage device 41, and reaches the destination. Initiate route guidance. In route guidance, the computing device 21 detects a traffic jam area or a construction area using the road information received by the road information receiving sensor 34, and notifies the user of the detected content using the speaker 51.

  After starting the route guidance, the arithmetic unit 21 executes the main process shown in FIG. 2 in parallel with the route guidance.

  In this main process, first, the arithmetic unit 21 calculates a linear distance L between the current position of the vehicle and the destination from the current position acquired by the GPS sensor 31 and the coordinate information of the destination stored in the destination storage memory 42. Calculate (step S1). Next, the computing device 21 determines whether or not the calculated straight line distance L is less than or equal to a threshold value R stored in the map information storage device 41 (step S2).

  Here, the relationship between the linear distance L calculated by the arithmetic unit 21 and the threshold value R will be described with reference to FIG. First, the threshold value R indicates the circumference of the radius R with the destination 101 as the center. As shown in FIG. 4, when the current position of the vehicle 102 traveling on the road 100 is within a circle having a radius R centered on the destination 101, the straight line distance L calculated by the calculation device 21 is equal to or less than a threshold value R. It becomes. On the other hand, when the current position of the vehicle 102 is outside the circle with the radius R, the straight line distance L calculated by the calculation device 21 exceeds the threshold value R.

  In addition, the straight line L in FIG. 4 has shown the linear distance to the navigation apparatus 1 mounted in the vehicle 102, and the destination 101, and the arithmetic unit 21 calculates this linear distance by step S1. Moreover, although it is a supplement, the code | symbol 103 in FIG. 4 has shown the center separation line, and the code | symbol 104 has shown the roadside zone.

  Returning to the description of FIG. When the calculated linear distance L is equal to or less than the threshold value R (step S2: Yes), the arithmetic unit 21 determines that the vehicle 102 exists around the destination 101, and uses information from the GPS sensor 31 and the speed sensor 33. It is determined whether or not the vehicle 102 has stopped (step S4).

  Specifically, the computing device 21 stops the vehicle 102 around the destination 101 when there is no change in the coordinate information acquired by the GPS sensor 31 and the vehicle speed acquired by the speed sensor 33 is zero. (Step S4: Yes) and the main process is terminated.

  On the other hand, when there is a change in the coordinate information acquired by the GPS sensor 31 or the vehicle speed acquired by the speed sensor 33 is not zero, the arithmetic unit 21 determines that the vehicle 102 is traveling (step S4). : No), it is determined whether the vehicle 102 is away from the destination 101 after passing through the destination 101 (step S5). Specifically, the arithmetic device 21 sequentially stores the linear distance L calculated in step S1 in the RAM in the arithmetic device 21, and has the stored linear distance L increased after reaching the minimum value? Is determined (step S5).

  Thus, in step S5, the arithmetic unit 21 determines whether the vehicle 102 has passed the destination 101 by determining whether the linear distance L calculated in step S1 has increased after reaching the minimum value. Determine whether or not. Therefore, the computing device 21 can detect the passage of the vehicle 102 at the destination 101.

  If the straight line distance L calculated in step S1 has not yet been detected to increase after the calculation device 21 has reached the minimum value, specifically, if the vehicle 102 has not yet passed through the destination 101, Alternatively, when the vehicle 102 is in the state closest to the destination 101, the process returns to Step S1 (No in Step S5).

  On the other hand, the arithmetic unit 21 determines that the vehicle 102 has passed the destination 101 when the linear distance L calculated in step S1 has increased after reaching the minimum value (step S5: Yes), The superimposed display process shown in detail in FIG. 3 is executed (step S6).

  Here, before explaining the superimposed display process, the display contents on the display 52 when the superimposed display process is executed will be described with reference to FIGS. 5 and 6 in order to facilitate understanding of the invention. FIG. 5 illustrates a case where the map display mode of the navigation device 1 is a heading-up mode in which the traveling direction of the vehicle 102 is displayed on the upper side of the display 52. Further, FIG. 6 illustrates a case where the map display mode of the navigation device 1 is an overhead view mode that simulates the scenery seen in the traveling direction from above the vehicle 102 in the form of an overhead view. The user can switch between the heading-up mode and the overhead view mode by using the control device 53.

  When the superimposing display process is executed, the arithmetic unit 21 performs basic information already displayed on the display 52 (specifically, the set destination 61 corresponding to the destination 101, the vehicle, as shown in FIG. 5 or FIG. 6). In addition to the vehicle position 62, road edge information 63, and route 64) corresponding to the current position 102, a bird's eye view 521 is generated and displayed on the display 52 as a sub-screen.

  This bird's-eye view 521 is a schematic view including the set destination 61 and the vehicle position 62 that have passed, and looking down on the set destination 61 from the front (traveling direction) of the vehicle position 62.

  Here, the superimposed display processing will be described with reference to FIG. In this process, first, the arithmetic unit 21 determines whether the straight line distance L calculated in step S1 is 1/3 or less of the threshold value R (step S10). When the arithmetic unit 21 determines that the linear distance L is equal to or less than 1/3 of the threshold value R (step S10: Yes), the depression angle of the bird's-eye view 521 is set to 30 degrees, The viewpoint and the angle of view are set so that the destination and the vehicle enter the corner and the predetermined scale is obtained, and the bird's-eye view 521 is generated using the audio / video processing device 24 (step S11).

  On the other hand, when it is determined No in step S10, the arithmetic unit 21 determines whether the above-described linear distance L (the linear distance between the current position and the destination) is 2/3 or less of the threshold value R (step S12). . When the arithmetic unit 21 determines that the straight line distance L is equal to or less than 2/3 of the threshold value R (Step S12: Yes), the depression angle of the bird's eye view 521 is set to 25 degrees, The viewpoint and the angle of view are set so that the destination and the vehicle enter the corner and the predetermined scale is obtained, and the bird's-eye view 521 is generated using the audio / video processing device 24 (step S13).

  On the other hand, when it is determined No in step S12, the arithmetic unit 21 sets the depression angle of the bird's-eye view 521 to 20 degrees, and the destination and the vehicle enter the predetermined depression angle and within the angle of view to be a predetermined scale. In this manner, the viewpoint and the angle of view are set, and the bird's-eye view 521 is generated using the audio / video processing device 24 (step S14). In the processing of steps S11, S13, and S14, the arithmetic unit 21 only changes the depression angle of the bird's-eye view 521, and does not change (fixed) the scale of the bird's-eye view 521.

  As shown in the processing of steps S10 to S14, the arithmetic unit 21 decreases the depression angle of the bird's eye view 521 as the linear distance L calculated in step S1 increases, that is, as the current position and the destination move away. By doing so, the set destination 61 and the vehicle position 62 are reliably displayed on the bird's eye view 521. Thereby, the user can visually grasp the positional relationship between the current position and the destination.

  The arithmetic unit 21 determines whether the map display mode is the heading-up mode after executing any of steps S11, S13, and S14 (step S15). When it is determined that the map display mode is the heading-up mode (step S15: Yes), the arithmetic unit 21 determines whether the set destination 61 is on the right side with respect to the traveling direction (step S16). When it is determined that the set destination 61 is on the right side with respect to the traveling direction (step S16: Yes), the arithmetic unit 21 displays a bird's eye view 521 on the lower left of the display 52 as shown in FIG. S17).

  In addition, when the computing device 21 determines that the set destination 61 is not on the right side with respect to the traveling direction (step S16: No), it determines that the set destination 61 is on the left side with respect to the traveling direction, and the display 52 A bird's-eye view 521 is displayed at the lower right of (step S18).

  In addition, when it is determined that the map display mode is not the heading-up mode (step S15: Yes), the arithmetic unit 21 determines that the map display mode is the overhead view mode, and as illustrated in FIG. A bird's-eye view 521 is displayed on the upper left of (Step S19).

  The arithmetic unit 21 ends the superimposed display process after performing any one of steps S17 to S19. Information used for generating (updating) the bird's-eye view 521 performed in steps S11, S13, and S14 is synchronized with information on basic information updated by route guidance. When generating the bird's-eye view 521 or the bird's-eye view mode, the computing device 21 detects the traveling direction of the vehicle 102 using the gyro sensor 32 and determines the viewpoint direction.

  As described above, through a series of processing in steps S15: Yes to S19, the computing device 21 changes to an area where the importance of information provided to the user is low, in other words, information required by the user (for example, the set destination 61 And a bird's eye view 521 are superimposed on an area that does not hinder display of the route 64). Therefore, according to the navigation apparatus 1, the display 52 can be used effectively.

  In addition, since the bird's eye view 521 is superimposed on the display 52, when the vehicle 102 passes the destination 101, the information provided to the user is compared with a navigation device that displays the bird's eye view 521 on the entire screen of the display 52. Significant changes can be prevented.

  Returning to the description of FIG. After the execution of step S6, the arithmetic device 21 executes the process of step S1 again and executes the determination of step S2. When it is determined that the calculated straight line distance L exceeds the threshold value R (step S2: Yes), the arithmetic unit 21 determines that the vehicle 102 does not exist around the destination 101 and displays the bird's eye view 521 on the display 52. Is displayed, the bird's-eye view 521 is not displayed. If the bird's-eye view 521 is not displayed, the state is maintained (step S3). Thereafter, the arithmetic unit 21 executes the processes after step S1 again, and executes the main process until the vehicle 102 stops around the destination 101.

  Thus, if the linear distance L between the vehicle 102 and the destination 101 exceeds the threshold value R (if the vehicle 102 is separated from the destination 101 by a linear distance exceeding the threshold value R), The superimposed display of the bird's eye view 521 is not performed. Therefore, according to the navigation apparatus 1, the bird's eye view 521 can be appropriately displayed in a superimposed manner under the situation required by the user.

  In addition, as is apparent from the processing in steps S2 and S4, the arithmetic unit 21 determines that the linear distance L between the vehicle 102 and the destination 101 is equal to or less than the threshold value R and the vehicle 102 is traveling, that is, the vehicle. When there is a possibility that 102 passes through the destination 101, the determination in step S5 is executed. Therefore, the processing load of the arithmetic unit 21 can be reduced as compared with the navigation apparatus that always performs the determination in step S5.

  As described above, the navigation device 1 according to the present embodiment displays the bird's eye view 521 on the display 52 when the vehicle 102 passes the destination 101, thereby indicating the positional relationship between the current position of the vehicle 102 and the destination 101. It is possible to make the user grasp visually. Therefore, according to the navigation apparatus 1 of this embodiment, it is possible to reduce the possibility that the user will pass through the destination again.

  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 applications are possible. For example, in the above-described embodiment, the navigation device 1 has been described as being mounted on a vehicle, but is not limited thereto, and may be mounted on a motorcycle, a bicycle, or a ship, for example. Moreover, you may mount in mobile terminals, such as a mobile phone, a portable information terminal (Personal Digital Assistants), a smart phone with a portable information terminal function, and a portable music player.

  Further, the threshold R used in step S2 of the main process may be a fixed value or may be set to an arbitrary value by the user using the control device 53. In the case of a configuration in which the user can arbitrarily set the threshold value R, the user can increase the travel distance until the bird's eye view 521 displayed after passing through the destination 101 is hidden by setting the threshold value R large. Can do. On the other hand, by setting the threshold value R small, the user can shorten the travel distance until the bird's eye view 521 displayed after passing through the destination 101 is not displayed.

  In the navigation device 1 of the above embodiment, in the superimposed display process (FIG. 3), the straight line distance L between the vehicle position and the destination is 1/3 or less of the threshold value R or exceeds 1/3 of the threshold value R. Although the depression angle of the bird's eye view 521 is switched in three steps according to three patterns of 2/3 or less or exceeding the threshold R 2/3, it is not limited to this. That is, without changing the depression angle of the bird's eye view 521 to the threshold value R, the linear distance L calculated by the arithmetic unit 21 in step S1 increases (as the vehicle 102 moves away from the destination 101), and continuously. In addition, the angle of depression of the bird's eye view 521 may be reduced.

  Further, in the navigation device 1 of the above embodiment, the position of the viewpoint in the bird's eye view 521 may be separated from the vehicle position 62 as the linear distance L increases (as the vehicle 102 moves away from the destination 101).

  Further, in the navigation device 1 of the above embodiment, the bird's-eye view is generated by setting the viewpoint at a position that is forward with respect to the traveling direction of the vehicle 102, but the present invention is not limited thereto, and is behind the traveling direction of the vehicle 102. A viewpoint may be set for the position, and a bird's eye view having a predetermined scale with the destination and the vehicle within the angle of view may be generated.

  Moreover, in the navigation apparatus 1 of the said embodiment, when it determines with the linear distance L becoming the minimum value and increasing after that, although the arithmetic unit 21 determined with the process of step S5, It is not limited to. That is, from the viewpoint of preventing erroneous display of the bird's eye view 521, in the process of step S5, the arithmetic unit 21 determines that the straight line distance L is the minimum value, and thereafter an increase in the straight line distance L is detected multiple times in succession. It may be configured to determine that the vehicle 102 has passed the destination 101.

  In the navigation device 1 of the above embodiment, the bird's-eye view 521 may be generated in a layer different from the layer in which the basic information is displayed, or the bird's-eye view 521 in the same layer as the layer in which the basic information is displayed. May be synthesized. In other words, any display that allows the user who sees the display 52 to recognize that the basic information and the bird's eye view 521 are displayed in a superimposed manner may be used.

  In the navigation device 1 of the above embodiment, when the map display mode is the bird's-eye view mode, the bird's-eye view 521 is displayed on the upper left (step S19), but the display is not limited to this, and the bird's-eye view 521 is displayed on the upper right. Even in the center, it may be anywhere as long as it does not hinder the display of information required by the user (for example, the set destination 61 and the route 64).

  In the navigation device 1 of the above embodiment, the user can set either the heading-up mode or the overhead view mode. However, the present invention is not limited to this, and the north is positioned above the display 52. The north up mode for displaying a map may be settable. Even when the navigation device 1 is set to the north-up mode, the bird's-eye view 521 can naturally be displayed. Even in this mode, the bird's eye view 521 may be displayed in an area that does not hinder the display of information required by the user (for example, the set destination 61 and the route 64).

  In the navigation device 1 of the above embodiment, the bird's eye view 521 is superimposed on the display 52 when the vehicle 102 passes the destination 101. In addition to this, the audio / video processing device 24 is used to provide voice guidance. You may go. In this case, using the linear distance L calculated by the arithmetic unit 21 in step S1, for example, the user knows the positional relationship between the current position of the vehicle 102 and the destination 101 such as “the destination is about 30 m behind”. Voice guidance useful for doing so is preferred.

  Moreover, in the navigation apparatus 1 of the said embodiment, when the vehicle 102 passed the destination 101, the bird's-eye view 521 was superimposed and displayed on the display 52, but it is not restricted to this and it passed instead of the bird's-eye view 521. A planar map (two-dimensional map) including the destination and the current position may be superimposed on the display 52.

  In the navigation device 1 of the above embodiment, the current position of the vehicle 102 is specified using the GPS sensor 31, but the present invention is not limited to this, and the current position of the vehicle 102 is detected using the road information reception sensor 34. May be specified. Specifically, the current position of the vehicle 102 may be specified by receiving radio waves or infrared rays transmitted from a beacon installed on the road using the road information receiving sensor 34. Alternatively, when the user has a mobile phone, the road information receiving sensor 34 is used to receive the electric field strength information from at least three mobile phone base stations, and the arithmetic device 21 analyzes the electric field strength information. By doing so, the current position of the vehicle 102 may be specified.

  In the above embodiment, the program for executing the main processing is a computer-readable program such as a flexible disk, a CD-ROM (Compact Disc Read-Only Memory), a DVD (Digital Versatile Disc), and an MO (Magneto-Optical Disc). A system that executes the main process described above may be configured by storing and distributing the program in a recording medium and installing the program in a computer or the like equipped with a GPS or the like.

  Further, the program may be stored in a disk device or the like of a predetermined server device on a communication network such as the Internet, and may be downloaded, for example, superimposed on a carrier wave.

  In addition, when the above-described main processing is realized by sharing an OS (Operating System), or when it is realized by cooperation between the OS and an application, only the part other than the OS is stored in the medium and distributed. It may also be downloaded.

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Information processing part 3 Position detection part 4 Information storage part 5 User interface part 21 Arithmetic unit 22 Sensor interface 23 Communication interface 24 Image sound processing apparatus 31 GPS sensor 32 Gyro sensor 33 Speed sensor 34 Road information receiving sensor 41 Map information Storage device 42 Destination storage memory 51 Speaker 52 Display 53 Control device

Claims (10)

Mounted on mobile objects,
A destination storage unit for storing the destination;
A moving body position specifying unit for specifying a current position of the moving body;
A route display unit for displaying a route from the current position specified by the mobile body position specifying unit to a destination stored in the destination storage unit together with a map on a display;
A passage determination unit for determining whether the current position specified by the mobile body position specifying unit has passed the destination stored in the destination storage unit;
A bird's-eye view including the current position and the destination that has passed when the current position is determined to have passed through the destination by the passage determination unit and looking down on the destination from above the current position Is superimposed on the display of the route and map on the display on which the route and map are displayed by the route display unit;
A navigation device comprising: The passage determination unit
A linear distance calculation unit that calculates a linear distance between the destination stored in the destination storage unit and the current position specified by the mobile object position specification unit;
A distance passage determination unit that determines that the current position has passed the destination when the linear distance calculated by the linear distance calculation unit is the shortest distance and then increases;
The navigation apparatus according to claim 1, further comprising: An in-distance determination unit for determining whether the current position specified by the mobile body position specifying unit exists within a predetermined distance starting from the destination stored in the destination storage unit;
A stop determination unit that determines whether the moving body is in a stopped state;
With
The distance passage determination unit
When the in-distance determining unit determines that the current position exists within the predetermined distance, and the stop determining unit determines that the moving body is not in a stopped state, the linear distance calculating unit calculates The navigation apparatus according to claim 2, further comprising a determination start unit that starts determining whether the straight line distance is the shortest distance. The superimposed display section
When it is determined that the current position has passed the destination by the distance passage determination unit, the linear distance calculated by the linear distance calculation unit increases as the linear distance increases. 4. A navigation apparatus according to claim 2, further comprising depression angle adjusting means for reducing the depression angle of the bird's eye view. A first mode determination unit that determines whether the display mode of the map displayed on the display by the route display unit is a heading-up mode in which the traveling direction of the moving body is displayed on the upper side of the display; Prepared,
The superimposed display section
When the first mode determination unit determines that the heading-up mode is selected, the bird's-eye view is displayed on a screen smaller than the map displayed by the route display unit and at the bottom of the display. The navigation apparatus according to any one of claims 1 to 4, further comprising a screen lower part superimposition display unit that performs superposition display. The screen lower superimposed display portion is
A left / right determination unit for determining whether the destination stored in the destination storage unit is located on the left side or the right side with respect to the traveling direction of the moving body;
When the left and right determination unit determines that the destination is located on the left side, the bird's eye view is superimposed on the right side of the lower part of the display, while when the destination is determined to be located on the right side, A left-right switching display unit that superimposes and displays the bird's-eye view on the left side of the lower part of the display;
The navigation apparatus according to claim 5, further comprising: A second mode for determining whether the display mode of the map displayed on the display by the route display unit is an overhead view mode that simulates a view seen in the traveling direction from above the moving body in an overhead view format It has a judgment part,
The superimposed display section
When the second mode determination unit determines that the bird's-eye view mode is selected, the bird's-eye view is displayed on a screen smaller than the map displayed by the route display unit and on the upper portion of the display. The navigation device according to any one of claims 1 to 6, further comprising a screen upper superimposed display unit that performs superimposed display. The superimposed display section
When it is determined by the distance passage determination unit that the current position has passed the destination, and the in-distance determination unit determines that the current position does not exist within the predetermined distance, it is superimposed on the display. The navigation apparatus according to claim 3, further comprising a display stop unit that stops the display of the displayed bird's-eye view. A passage determination step for determining whether the current position of the moving body has passed the destination;
When the current position is determined to have passed through the destination by the passage determination step, a map including the current position and the destination that has passed is displayed as a route and a map from the current position to the destination. A superimposed display step of superimposing the route and the map on the display being displayed,
Navigation method including. On the computer,
A passage determination function for determining whether the current position of the moving body has passed the destination;
When the current position is determined to have passed the destination by the passage determination function, a map including the current position and the destination that has passed is displayed as a route and a map from the current position to the destination. A superimposed display function for superimposing and displaying the route and the map on the display,
A program that realizes

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