JP2012018184A - Display device and display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform guidance by displaying a recommended route from a starting location to a destination on a map in an easy-to-understand manner for users weak in reading maps and having a poor sense of direction.SOLUTION: A display device having a display function of presenting a recommended route from a starting location to a destination comprises: a bird's-eye view data generating part 4 that detects the direction toward the destination from the starting location and generates bird's-eye view data expressing a recommended route from the starting location to the destination in a manner of looking down toward the destination from above the starting location; and a display control part 7 that fixedly displays a bird's-eye view on the screen of a display part 9 with the starting location positioned on the near side of the screen and the destination on the far side based on the bird's-eye view data. the bird's-eye view that is fixedly displayed on the screen of the display part 9 provides a user with an easy-to-understand map.

Description

  The present invention relates to a display device and a display method having a display function for guiding a recommended route from a departure place to a destination.

  In a display device provided in a mobile phone or a car navigation device, a bird's-eye view (overhead view) expressing features such as buildings and roads obliquely from above when guiding a route (recommended route) from the departure place to the destination A map display is known (see JP 2005-017052 A, FIG. 6, FIG. 7, etc.).

  In addition, according to the bird's-eye view display, when the bird's-eye view is displayed so that the current position is in front of the screen and the destination is at the back of the screen so that the user can look down from above the current position toward the destination, the recommended route is hidden behind the building. It is also suggested to display the bird's eye view so that the destination is in front of the screen and the current position is in the back of the screen so that the recommended route can be seen in front of the building. (See JP 2004-233333 A, FIG. 2 and the like).

  In addition, if the current position on the recommended route is hidden behind the building while displaying the bird's-eye view, the bird's-eye view display is stopped and the plan map or plane bird's-eye view (a diagram in which three-dimensional buildings are omitted from the bird's-eye view) is displayed. It has also been proposed to make it easier to visually recognize the recommended route and the current position by switching display (see JP 2006-317503 A, FIG. 2, etc.).

JP 2005-017052 A JP 2004-233333 A JP 2006-317503 A

  By the way, although the invention currently disclosed by the patent documents 1-3 mentioned above was made to obtain a sense of reality by a bird's-eye view etc., making it easy to visually recognize a bird's-eye view etc. (making it easy to see visually). Since it was made as the main purpose, it could not be said that the original information of the map was displayed in an easy-to-understand manner for the user.

  For example, in the invention of Patent Document 2 (Japanese Patent Application Laid-Open No. 2004-233333), as described in FIG. 2 of the same publication, the line-of-sight direction is changed and the recommended road and the current position are displayed on the front side of the screen. However, by displaying a three-dimensional building on the back side of the screen, it is easy to see the recommended road and the current position, but the direction of the bird's eye view (the direction of east, west, south, and north) also changes with the change of the line of sight Therefore, it is difficult for the user to grasp the sense of direction, and there is a problem that the user feels uncomfortable or easily mistakes.

  In addition, as in the inventions disclosed in Patent Documents 1 to 3, the primary purpose of making map information easy to understand can be sufficiently achieved simply by displaying a bird's-eye view that is easy to see. For example, it is not easy to understand for a user who is not good at reading a map or a user who does not have a sense of direction.

  The present invention has been made in view of such problems of the prior art. For example, it is recommended from a starting point to a destination so that it is easy to understand for a user who is not good at reading a map or a user who is not familiar with direction. It is an object of the present invention to provide a display device for displaying and guiding a route on a map.

  The invention according to claim 1 expresses a recommended route from the departure point to the destination in a state of looking down from the viewpoint of looking down from the sky near the departure point toward the destination, and displays the departure point in front of the screen. A display unit that displays on the screen a bird's eye view that represents the destination while being located on the back side of the screen, and the display unit includes all of the departure point, the destination, and the recommended route within the screen range. The current position mark indicating the current position is superimposed on the scaled bird's-eye view and displayed while the scaled bird's-eye view is fixedly displayed on the screen and the current position mark is moved toward the destination. It is characterized by that.

  The invention described in claim 7 expresses a recommended route from the departure point to the destination in a state of looking down from the viewpoint of looking down from the sky near the departure point toward the destination, and displays the departure point in front of the screen. And a display step of displaying a bird's eye view representing the destination while being located on the back side of the screen on the screen, and the display step includes all of the departure point, the destination, and the recommended route within the screen range. The current position mark indicating the current position is superimposed on the scaled bird's-eye view and displayed while the scaled bird's-eye view is fixedly displayed on the screen and the current position mark is moved toward the destination. It is characterized by that.

It is a block diagram which shows the structure of the display apparatus which concerns on embodiment. It is a flowchart which shows the creation process at the time of creating the data for map display for displaying a bird's-eye view. 2 is a plan map for explaining functions when the display device shown in FIG. 1 displays a bird's eye view. FIG. It is explanatory drawing for demonstrating the creation principle of bird's-eye view data. It is explanatory drawing which illustrates the bird's-eye view displayed on a display part. It is explanatory drawing which illustrates the other bird's-eye view displayed on a display part. It is description for demonstrating the menu etc. which are displayed on the screen of a display part.

  Preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the basic configuration of the display device of this embodiment.

  In FIG. 1, the display device 1 includes a current position detection unit 2, a navigation processing unit 3, a bird's eye view data creation unit 4, a storage unit 5, a communication unit 6, a display control unit 7, an operation unit 8, and a display unit 9. It is configured and realized by a so-called computer system configuration that operates under the control of a microprocessor (MPU) (not shown). The display device 1 is built in or mounted on a mobile body such as a car navigation device, a mobile phone, a microcomputer, or a PDA (Personal Digital Assistant).

  The communication unit 6 receives map data (spatiotemporal geographical information) distributed from a map information distribution center (not shown) via a communication network such as the Internet, and downloads and stores the map data in the storage unit 5. ing.

  Further, although not shown, an information reading device that reads map data stored in a recording medium such as a DVD, CD, or memory card is provided, and the read map data can be downloaded and stored in the storage unit 5. Yes.

  The storage unit 5 includes a storage medium such as a hard disk drive (HDD), SDRAM, or flash ROM in order to download and store map data (time-space geographic information) distributed from the above-described map information distribution center. ing.

  The operation unit 8 is provided with operation switches and operation keys for the user to input a desired operation command.

  The display control unit 7 generates video data based on map display data Dmap, which will be described later, created by the bird's-eye view data creation unit 4, and uses the video data to display the bird's-eye view on the display device 9 including a touch panel type liquid crystal display device. Is displayed on the map.

  Furthermore, in addition to displaying a bird's eye view on the screen of the display unit 9, the display control unit 7 displays a menu in a predetermined display area, and when the user touches the menu, the display control unit 7 is equivalent to the case where the operation unit 8 is operated. An operation command can be input.

  The current position detection unit 2 detects the current position of the moving body using a built-in GPS (Global Positioning System) receiver, an autonomous navigation sensor, or the like, and outputs current position data PRS.

  The navigation processing unit 3 performs navigation processing in accordance with a predetermined command input by the user via the menu display of the operation unit 8 or the display unit 9. Although details will be described later, for example, when the user inputs and sets the latitude and longitude of the departure point S and the destination G and instructs the navigation processing to start, the navigation processing unit 3 stores the departure stored in the storage unit 5. Using map data including the route from the destination S to the destination G, processing such as map matching is performed, and the optimum recommended route from the departure point S to the destination G (with at least nodes and links as entities) Recommended route) BRD is searched for a route.

  The bird's eye view data creation unit 4 acquires map data including the departure point S and destination G input and set by the user, the recommended route BRD searched for the route by the navigation processing unit 3, and the background map from the storage unit 5, The bird's-eye view data Dcg is created using the acquired map data, and the departure point mark data Ds and the destination mark data Dg for indicating the positions of the departure point S and the destination G with marks are created. Based on the current position data PRS detected by the position detector 2, current position mark data Dprs for indicating the current position of the moving object with a mark such as a triangle mark (current position mark Mprs) is created, and the departure point is displayed in the bird's eye view data Dcg. The mark display data Dmap is generated by combining the mark data Ds, the destination mark data Dg, and the current position data Dprs and supplied to the display control unit 7. Then, the display control unit 7 generates video data based on the map display data Dmap, and the display unit 9 displays a bird's eye view on a map.

  Here, the bird's eye view data creation unit 4 creates the bird's eye view data Dcg and the map display data Dmap by the following processing. 2 to 6 are diagrams for explaining a method of creating the bird's eye view data Dcg and the map display data Dmap. FIG. 2 is a flowchart showing the creation process, FIG. 3 is a plan map, and FIG. FIGS. 5 and 6 are diagrams illustrating the principle, and FIG. 5 and FIG. 6 are diagrams illustrating bird's-eye views displayed on the display unit 9.

  The creation method will be described with reference to the flowchart of FIG. 2. When the user inputs and sets the departure point S and the destination G (step ST 1), the navigation processing unit 3 displays information on the latitude and longitude of the departure point S and the destination G, A route search for the optimum recommended route BRD is performed using the map data stored in the storage unit 5 (step ST2).

Next, the bird's eye view data creation unit 4 acquires map data of a predetermined scale ratio including the optimum recommended route BRD, the departure point S, the destination G, and the background map from the storage unit 5.
Here, if the map is already displayed on the screen of the display unit 9 before the user inputs and sets the latitude and longitude of the departure point S and the destination G, the horizontal direction (horizontal direction) x and the vertical direction ( FIG. 3 shows that the recommended route BRD, the starting point S, and the destination G are all within the screen range of the display unit 9 in accordance with the orientation of the map already displayed based on the vertical direction y. As illustrated, map data of a scale ratio that can display the most detailed map in the entire screen range is acquired from the storage unit 5.

  For example, FIG. 3 illustrates an example in which the north-south direction of a map that is already displayed is displayed in accordance with the horizontal direction (horizontal direction) x of the screen and the east-west direction is aligned with the vertical direction (vertical direction) y of the screen. As described above, the map data having the east, west, north, and south directions that coincide with the x direction and the y direction and that can display the most detailed map in the entire display screen range is acquired from the storage unit 5. To do.

  Although details will be described later, map data of a scale that can display the most detailed map in the entire display screen range in accordance with the orientation of the map already displayed as illustrated in FIG. 3 is stored. The operation mode acquired from the unit 5 is called an arbitrary azimuth mode and can be set in advance by the user. Regardless of the orientation of the map already displayed, the upper part of the screen of the display unit 9 is fixed as north, the lower side of the screen is fixed as south, the right side of the screen is fixed as east, and the left side of the screen is fixed as west. In accordance with the orientation, the user can set in advance an operation mode (fixed orientation mode) for acquiring map data of a scale ratio capable of displaying the most detailed map in the entire display screen range from the storage unit 5. It is like that. In addition, the starting point S and the destination G are aligned in the y direction passing through the center of the screen of the display unit 9, the starting point S is displayed in the lower area of the screen, and the destination G is displayed in the upper area of the screen. The user can set in advance an operation mode (standard azimuth mode) for acquiring map data of a scale ratio capable of displaying the most detailed map from the storage unit 5.

  When the user sets any one of the arbitrary azimuth mode, the fixed azimuth mode, and the standard azimuth mode, the bird's-eye view data creation unit 4 searches for a route in any of the set modes. Further, the map data of the predetermined scale ratio including the optimum recommended route BRD, the starting point S, the destination G, and the background map is acquired from the storage unit 5.

  Next, in step ST4, the bird's-eye view data creation unit 4 on the plane map based on the latitude / longitude of the departure point S and the latitude / longitude of the destination G as schematically shown in the geometric diagram of FIG. An azimuth vector Vsg connecting the departure point S to the destination G is calculated, and a latitude and longitude of a point SB located on the extension line of the azimuth vector Vsg and positioned behind the departure point S by a predetermined distance m is estimated and calculated. Further, the position P of the predetermined height H is looked down from the point SB as the viewpoint P, and an angle (a depression angle) θ looking down the destination G from the look-down viewpoint P is calculated. Then, by converting polygon data relating to features such as buildings included in the map data acquired from the storage unit 5 based on the depression angle θ, the departure point S is on the front side of the screen of the display unit 9. The bird's eye view data Dcg is created so that the destination G is visually felt so that the destination G can be seen on the back side of the screen.

  Next, in step ST5, the bird's-eye view data creation unit 4 displays a bird's-eye view on the screen of the display unit 9, and when the bird's-eye view data is displayed in the screen range without excess or deficiency, Adjust (zoom adjustment). That is, the depression angle θ is adjusted by adjusting the distance m between the departure point S and the back point SB shown in FIG. 4 and the height H of the looking-down viewpoint P above the point SB according to a predetermined convergence algorithm. Based on the adjusted depression angle θ, the bird's-eye view data Dcg is re-created by converting polygon data relating to features such as buildings included in the map data acquired from the storage unit 5 and recreating the bird's-eye view data Dcg. Magnification adjustment (zoom adjustment) for. That is, the magnification adjustment (zoom adjustment) is performed on the bird's eye view data Dcg by performing a process equivalent to performing zoom adjustment by adjusting the lens of the camera.

  In this embodiment, the depression angle θ is adjusted to perform magnification adjustment (zoom adjustment) on the bird's eye view data Dcg. However, the distance between the destination G and the looking-down viewpoint P is adjusted without adjusting the depression angle θ. Depending on the adjusted distance, magnification adjustment (zoom adjustment) on the bird's eye view data Dcg may be performed. Even with this method, it is possible to perform a process equivalent to performing zoom adjustment by adjusting the lens of the camera, and to perform magnification adjustment (zoom adjustment) on the bird's eye view data Dcg.

  Next, in step ST6, the bird's eye view data creation unit 4 creates departure point mark data Ds and destination mark data Dg indicating the positions of the departure point S and the destination G, and is further detected by the current position detection unit 2. Based on the current position data PRS, current position mark data Dprs indicating the current position of the moving body is created, and the departure point mark data Ds, destination mark data Dg and current position data are added to the bird's eye view data Dcg subjected to the zoom adjustment described above. The map display data Dmap is created by combining Dprs.

  In step ST7, the bird's eye view data creation unit 4 supplies the map display data Dmap to the display control unit 7, and the display unit 9 displays the bird's eye view on the map. Therefore, when the arbitrary azimuth mode is set, a bird's eye view as illustrated in FIG. 5 is displayed, and when the fixed azimuth mode is set, the upper side of the screen is north, the lower side of the screen is south, A bird's eye view with the right side of the screen being east and the left side of the screen being west is displayed, and when the standard direction mode is set, as shown in FIG. 6, the departure point S and the destination G are displayed on the display unit. 9 is a bird's-eye view that is aligned with the vertical direction y passing through the center of the screen.

  In the present embodiment, the above-mentioned “looking-down viewpoint” P is not a position above the departure point S, but a position above a point SB that is a predetermined distance m behind the departure point S. For this reason, when the user is located at the departure place S, a bird's-eye view that makes the user feel as if looking down at the destination G from behind the user's overhead is displayed as a map on the screen of the display unit 9. Such a display method is called “rear view” and has an advantage that a background map around the user can be displayed in a wider range than the case where a bird's-eye view is displayed as a viewpoint looking down above the user's head. The user can easily understand the original information of the map.

  Next, the operation of the display device 1 having such a configuration will be described in detail with reference to FIG. In addition, since the display device 1 has functions that could not be explained in the above description of the configuration, the description will be made including those functions.

  FIG. 7 is a diagram showing a display area on the screen of the display unit 9, a map display area in which a bird's eye view as illustrated in FIGS. 5 and 6 is displayed, and a menu for the user to make desired input settings. The menu display area and the status display area are displayed.

  The menu display area includes items such as “View Type”, “Direction Mode”, “Departure Point”, “Destination”, “Texture”, “Transparency”, “Demo Display”, “Movement Speed”, “Draw”, “Auto / Manual”, “ Icons with “Demo display start”, “Pause”, “Screenshot”, and “End” are displayed. The operation unit 8 manages these items and icons, and commands the operation of the display device 1 according to information input and set by the user.

  In the “view type” item, an input box for inputting and setting a map display format such as a satellite view, an arrow view, and a guide view is displayed in addition to the above-described background view. The input box is switched to a map display format each time the user touches, and a desired map display format can be input. The back view is the default (standard setting). Note that descriptions of the satellite view, the arrow view, and the guide view are omitted.

  In the azimuth mode item, an input box for inputting and setting any one of the above-mentioned arbitrary azimuth mode, fixed azimuth mode, and standard azimuth mode is displayed. The standard azimuth mode is the default, and the input box for the azimuth mode item can be switched to a desired mode every time the user touches.

  In the item of departure place, an input box for inputting the latitude and longitude of the departure place S is displayed. After touching the input box, the number key provided on the operation unit 8 is operated to start the departure place. The latitude and longitude of S are input as data.

  In the destination field, an input box for inputting the latitude and longitude of the destination G is displayed. After touching the input box, the number key provided on the operation unit 8 is operated to The latitude and longitude of G are entered as data.

  The drawing icon is provided for displaying a bird's eye view including the recommended route BRD. When the user touches the drawing icon after inputting the latitude and longitude of the departure point S and the destination G, the navigation processing unit 3 performs the navigation processing shown in FIG. 2 to obtain the bird's eye view data Dcg and the map display data Dmap. The bird's-eye view is displayed in the map display area by creating and supplying the display unit 9 via the display control unit 7.

  A check box is displayed in the texture item, and it is possible to switch between check-on and check-off each time the user touches the check box. When the check-on is performed as shown in the figure, the texture-on can be set for the house shape displayed on the map, and the texture-off is the initial value.

  In the item of transmittance, the slide volume image is displayed. When the user touches and moves the slide volume, the transmittance of the building or the like in the bird's eye view is set according to the moved position. Can be done. That is, when the bird's-eye view data creation unit 4 creates the bird's-eye view data Dcg, the bird's-eye view data Dcg for adjusting the transparency of the building or the like so that the recommended route BRD can be seen through is created.

  In the demonstration display item, a switch with ON / OFF notation is displayed. The present location mark Mprs displayed in the bird's-eye view is moved and displayed along the recommended route BRD from the departure point S to the destination G, and is provided for demonstration display as if the user actually moved. When the user touches the notation of ON, the demo display is turned on, and when the user touches the notation of OFF, the demo display is initially set to off.

  If the demonstration display is initially set to ON, it is possible to display the demonstration as if the user actually moved regardless of the current position data PRD detected by the current position detection unit 2. However, if the demonstration display is initially set to OFF, the current location mark Mprs displayed superimposed on the recommended route BRD of the bird's eye view is displayed based on the current location data PRD detected by the current location detection unit 2. The actual moving position (current location) of the moving object is displayed by the mark Mprs.

  The demonstration display activation icon functions when the demonstration display item is initially set to ON, and starts the demonstration display when the user touches the demonstration display activation icon to turn it on.

  The movement display of the current location mark Mprs is performed as follows. That is, the bird's-eye view data creation unit 4 changes the movement position along the recommended route BRD by itself, without using the current position data PRS detected by the current position detection unit 2, thereby generating pseudo current position data PRS. The current location mark data Dprs created and based on the pseudo current position data PRS is superimposed on the bird's eye view data Dcg and displayed on the display unit 9 to display the current location mark Mprs for demonstration display.

  The pause icon functions when the demo display item is initially set to ON. Then, after the user touches the demonstration display start icon and turns it on, if the current location mark Mprs displayed in the bird's eye view moves along the recommended route BRD, touching the pause icon causes the current location mark Mprs to move. It can be paused. Note that the movement of the current location mark Mprs can be temporarily stopped by causing the bird's eye view data creation unit 4 to temporarily stop the change of the movement position. Further, when the user touches the temporary stop icon in the temporary stop state, it is possible to instruct the bird's eye view data creation unit 4 to move the current location mark Mprs again from the stop position.

  In the movement speed item, a slide volume image is displayed. When the user touches and moves the slide volume, the bird's eye view data creation unit 4 is instructed according to the movement position of the slide volume. The moving speed of the current location mark Mprs displayed in the demonstration can be adjusted. Note that the slide volume can be set even when the current location mark Mprs is moved during the demonstration display or in a state of being paused.

  The screenshot icon is provided to save the bird's eye view displayed in the map display area as still image data. When the user touches the screen shot icon, the screen shot is turned on (capture is turned on), and the display control unit 7 saves the bird's eye view at the moment of the on operation as a still image data in a predetermined folder in the storage unit 5. When the current location mark Mprs is moving, when the user saves still image data at a desired timing and turns on the still image playback button provided in the operation unit 8, the display control unit 7 displays the still image. It is displayed in the map display area and presented to the user.

  The end icon is provided to end the demonstration display. When the current location mark Mprs is moving in the bird's-eye view, if the user touches the end icon, the processing for instructing the bird's-eye view data creation unit 4 to move the current location mark Mprs is terminated, and the current location mark Mprs is returned to the departure place S. Can be brought to rest.

  Next, in the status display area shown in FIG. 7, the distance from the departure point S to the destination G is set to 100%, and the distance moved from the departure point S of the current position mark Mprs is displayed as a percentage, thereby displaying the current position mark Mprs. A ruler that presents the movement status of is displayed. When the user observes the movement of the ruler during the start of the demonstration display, the moving speed for reaching the destination G can be predicted in advance, and the current position data PRS detected by the current position detection unit 2 can be predicted. When the current position mark Mprs is displayed on the bird's eye view (that is, when the navigation display is performed based on the current position data PRS detected by the current position detection unit 2 instead of the demonstration display), By looking at the movement of the ruler, it is possible to know the relative remaining distance until the destination G is reached.

  Next, an operation when the user operates the menu display described above and actually uses the display device 1 will be described. Note that the view type is set to the back view, the orientation mode is set to the standard orientation mode, the transmittance is already set to the desired transmittance, the demo display icon is initially set to on, the texture is set to off, and the movement speed It is assumed that a desired moving speed has already been set in the item.

First, the operation when the demonstration display is activated will be described.
When the user inputs and sets the latitude and longitude of the departure point S and the destination G and operates the drawing icon, the bird's eye view data creation unit 4 performs the bird's eye view data Dcg including the recommended route BRD searched for the route, the departure point S, and the destination G. Further, the map display data Dmap is created by creating the mark data Ds, Dg, Dprs of the starting point S, the destination G, and the current position and combining it with the bird's-eye view data Dcg. A bird's eye view is displayed. Since the direction mode is set to the standard direction mode, as shown in FIG. 6, the bird's-eye view in which the display positions of the departure point S and the destination G are aligned in the y direction passing through the center of the screen. Is fixed and displayed in the screen. Further, the recommended route BRD is displayed in a colored manner such as yellow so that it can be distinguished from other roads.

  When the arbitrary azimuth mode or the fixed azimuth mode is set, the bird's-eye view is not necessarily aligned in the y direction passing through the center of the screen in the screen. Will be displayed.

  Next, when the user turns on the demonstration display activation icon, the current location mark Mprs automatically moves along the recommended route BRD at the movement speed set in the item of movement speed. If the user turns on the pause icon while the current location mark Mprs is moving, the current location mark Mprs is paused. If the user switches to the off operation, the current location mark Mprs can be moved again from the pause position. When the end icon is turned on and the demo display activation icon is turned on, the current location mark Mprs can be returned to the departure place S and then moved again. Further, if another moving speed is set in the item of moving speed, the moving speed of the current location mark Mprs can be changed.

  Accordingly, the user appropriately operates the demo display start icon, the pause icon, and the end icon, and sets another movement speed in the item of movement speed, thereby adjusting the movement of the current position mark Mprs, and changing the current position mark Mprs. By looking at the movement, it is possible to understand the route to be moved from the departure point S to the destination G, or to understand in advance the speed to be actually moved, the distance to the destination G, the required time, and the like.

  When the user actually starts moving along the recommended route BRD from the departure point S, and the user appropriately operates the demo display start icon, the pause icon, and the end icon in the middle of the recommended route BRD, the demonstration display is displayed again. It is possible to reconfirm that there is no mistake in the route that has been moved or the route that is about to move, and by repeating the demonstration display, it can be reconfirmed as many times as possible to reach the destination G. be able to.

Next, an operation when the user moves while viewing a bird's-eye view displayed on a map based on the current position detected by the current position detection unit 2 (bird's-eye view in the case of navigation display) will be described.
When the user sets the ON / OFF icon of the demonstration display item to OFF, inputs and sets the latitude and longitude of the departure point S and the destination G, and turns on the drawing icon, the current position detection unit 2 detects it. A bird's eye view is displayed as a map based on the current position.

  If the demo display item ON / OFF icon is set to ON and the demo display start icon, pause icon, and end icon are appropriately operated before the user starts moving, the demonstration display can be performed. And prior knowledge can be obtained before the start of movement.

  When the demo display item ON / OFF icon is set to OFF again, navigation is displayed. Therefore, when movement is actually started along the recommended route BRD, the current position detection unit 2 matches the current position. The current location mark Mprs is moved and displayed, and the user can know whether the user is moving toward the destination G along the recommended route BRD by looking at the current location mark Mprs.

  In addition, if the user appropriately operates the demo display start icon, pause icon, and end icon during the recommended route BRD, the demonstration display can be performed again, and the route that has moved or the route that is about to move will be incorrect. It is possible to reconfirm whether or not there is any further, and by repeating the demonstration display, it is possible to reconfirm as many times as possible to reach the destination G.

  In addition, by repeating the demonstration display, displaying the movement of the current location mark Mprs in accordance with the current position detected by the current position detection unit 2, and combining them appropriately, the destination G can be more reliably displayed. Can be reached.

  As described above, according to the display device 1 of the present embodiment, the following effects can be obtained.

  First, as illustrated in FIGS. 5 and 6, a bird's eye view including the departure point S, the destination G, and the recommended route BRD is always fixed and displayed on the screen of the display unit 9, and a demonstration display (demo display) Navigation display (navigation display) is performed. In other words, in this embodiment, once a bird's-eye view for guiding on a recommended route from the departure point to the destination is displayed, the viewpoint direction is not changed or the direction of the bird's-eye view is not changed. S, destination G, and recommended route BRD are fixedly displayed on the display screen, and demonstration display and navigation display are performed. For this reason, it is possible to display the map so that it is easy to understand for a user who is not good at reading a map or a user who is not familiar with the sense of direction.

  Also, by displaying the demonstration, prior knowledge can be obtained before the user actually starts moving from the departure point S toward the destination G along the recommended route BRD. For this reason, it is possible to provide preliminary knowledge for reliably guiding the user to the destination G to a user who is not good at reading a map or a user who does not have a sense of direction.

  Moreover, since the demonstration display can be performed even during the movement, the user can surely reach the destination G, and the user who is not good at reading the map or the user who is not familiar with the direction sense It can be reliably guided to the ground G.

  In the present embodiment, the current position detection unit 2 is provided as shown in FIG. 1, but the current position detection unit 2 may be omitted. In other words, the navigation display function may be omitted. According to such a configuration, since there is a navigation display function, the user can use the navigation display function so that, for example, a user who is not good at reading a map or a user who is unfamiliar with the direction sense can easily understand it. A map can be displayed.

  Further, the configuration of the display device 1 may be a hardware configuration, or a so-called software configuration in which the same function is exhibited by a computer program executed by a computer.

DESCRIPTION OF SYMBOLS 1 ... Display apparatus 2 ... Current position detection part 4 ... Bird's eye view data creation part 7 ... Display control part 9 ... Display part

Claims (7)

Expressing the recommended route from the departure point to the destination in the state of looking down from the sky near the departure point toward the destination, and with the departure point at the front of the screen and the destination at the back of the screen It has a display unit that displays a bird's eye view to be expressed while being positioned on the screen,
The display unit superimposes and displays a current position mark indicating a current position on the bird's-eye view of the scale in which the starting point, the destination, and the recommended route are all included in the screen range, and the bird's-eye view of the scale is displayed on the scale. The current position mark is moved toward the destination and displayed while being fixedly displayed on the screen.
A display device characterized by that. The display unit displays the starting point and the destination by aligning them along the vertical direction at the center of the screen.
The display device according to claim 1. The display unit performs a demonstration display for displaying the current location mark moving along the recommended route by displaying the current position mark superimposed on the bird's eye view as pseudo mark data moving along the recommended route.
The display device according to claim 1 or 2.   The display device according to claim 3, wherein the display unit displays the pseudo mark data for adjusting a moving speed of the current location mark in accordance with an instruction from a user.   The display device according to claim 3, wherein the display unit displays the pseudo mark data for suspending the movement of the current location mark according to an instruction from a user. A current position detecting unit for detecting a current position of a moving body including the display device;
The display unit displays the mark data created based on the current position detected by the current position detection unit in the bird's eye view according to an instruction from a user, thereby displaying a current location mark that moves on the recommended route. Perform navigation display,
The display device according to claim 1, wherein: Expressing the recommended route from the departure point to the destination in the state of looking down from the sky near the departure point toward the destination, and with the departure point at the front of the screen and the destination at the back of the screen It has a display process to display a bird's eye view to be expressed while being positioned on the screen,
The display step displays the current position mark indicating the current position on the bird's-eye view of a reduced scale in which the starting point, the destination, and the recommended route are all included in the screen range, and the bird's-eye view of the reduced scale is displayed on the scale. The current position mark is moved toward the destination and displayed while being fixedly displayed on the screen.
A display method characterized by that.

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