JP4695957B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation device that can scroll a road map while grasping a scroll amount and a scroll direction.

When scrolling from a map where the current position is displayed to a map where the current position is not displayed, in order to better recognize the positional relationship between the scrolled map and the current position, Such a navigation device is known. A cursor is displayed at the center of the scrolling map, and a line connecting the cursor and the current position is displayed. The line width of the line to be displayed becomes thinner as the distance from the current position is increased, and the display color of the line becomes thinner as the distance from the current position is increased (Patent Document 1).
JP 2005-30800 A

  In the navigation device described in Patent Document 1, the display change of the line connecting the cursor and the current position with respect to the scroll amount of the road map becomes smaller as the scrolled road map moves away from the current location. For this reason, as the scrolled road map moves away from the current location, it is not known how much the scroll has been scrolled, and the road map is scrolled to a position that is unnecessarily separated.

(1) The navigation device of the invention of claim 1 is a road map display means for displaying a road map on a display monitor, a scroll means for scrolling the road map according to a scroll instruction, and a scroll direction scrolled by the scroll means. Arrow display means for displaying an arrow to be displayed together with the road map to be scrolled. The arrow display means displays the arrow with a line, and the scroll amount of the road map scrolled by the scroll means is increased. by displaying thickened border line of the arrow in accordance with, and displaying prominently the arrow.
(2) The navigation device of the invention of claim 2 is a road map display means for displaying a road map on a display monitor, a scroll means for scrolling the road map in accordance with a scroll instruction, and a scroll direction scrolled by the scroll means. An arrow display means for displaying an arrow to be displayed together with a scrolled road map, wherein the arrow display means displays the arrow on the road map so that the road map can be seen through, and the scroll means by reducing the extent of the transmission in accordance with the amount of scrolling a road map to scroll increases, and displaying prominently the arrow.
(3) The navigation device of the invention of claim 3 is a road map display means for displaying a road map on a display monitor, a scroll means for scrolling the road map in accordance with a scroll instruction, and a scroll direction scrolled by the scroll means. the arrows indicate, and a arrow display means for displaying together with the road map to be scrolled, the arrow display means displays the arrow in dotted lines, in accordance with the amount of scrolling a road map to scroll increases by the scrolling means by displaying by narrowing the distance between points constituting a dotted pre Symbol arrow, and displaying prominently the arrow.
( 4 ) The navigation device according to the invention of claim 4 is the navigation device according to any one of claims 1 to 3 , wherein the arrow display means increases the scroll amount as the scroll amount increases. Is displayed in a large size and / or the arrow part of the arrow is displayed thickly.

  According to the present invention, the scroll direction of the road map is displayed with an arrow, and the arrow is displayed prominently as the scroll amount of the road map increases. Accordingly, attention can be drawn to the fact that the scroll amount is large.

  A configuration of a navigation apparatus according to an embodiment of the present invention is shown in FIG. The navigation device 1 in FIG. 1 can scroll a road map displayed on the display monitor 16 by pressing a touch panel 19. The navigation device 1 includes a control circuit 11, ROM 12, RAM 13, current location detection device 14, image memory 15, display monitor 16, speaker 17, input device 18, touch panel 19, and disk drive 111.

  The touch panel 19 is a transparent touch switch laminated on the surface of the display monitor 16, and an image displayed on the display monitor 16 is displayed through the touch panel 19. The touch panel 19 sends a signal corresponding to the operation position on the touch panel 19 to the touch panel control unit 110, and the touch panel control unit 110 calculates the pressed position of the touch panel 19.

  The control circuit 11 includes a microprocessor and its peripheral circuits, and performs various controls by executing a control program stored in the ROM 12 using the RAM 13 as a work area. When the control circuit 11 performs a predetermined route search process based on the map data stored in the DVD-ROM 112, the processing result is displayed on the display monitor 16 as a search route.

  The current position detection device 14 is a device that detects the current position of the vehicle. For example, a vibration gyro 14a that detects the traveling direction of the vehicle, a vehicle speed sensor 14b that detects the vehicle speed, and a GPS signal from a GPS (Global Positioning System) satellite. It consists of a GPS sensor 14c and the like. The navigation device 1 determines a map display range, a route search start point, and the like based on the current location of the vehicle detected by the current location detection device 14, and displays the current location on the map.

  The image memory 15 stores image data to be displayed on the display monitor 16. This image data includes road map drawing data and various graphic data, which are appropriately generated based on map data stored in the DVD-ROM 112 read by the disk drive 111. The navigation device 1 can perform map display and the like by using the image data generated in this way.

  The display monitor 16 provides the occupant with various information such as a road map near the vehicle position as a screen display based on various information such as map data. The speaker 17 generates sound for guiding various input operations of the occupant and for guiding the route to the occupant. The input device 18 has an input switch for a passenger to set various commands, and is realized by a remote controller or the like. The occupant manually operates the input device 18 according to instructions on the display screen of the display monitor 16 to select a destination and set the destination.

  As described above, the touch panel 19 is a transparent panel provided on the monitor screen of the display monitor 16, and the display screen displayed on the display monitor 16 is displayed through the touch panel 19. Further, when the display screen of the display monitor 16 is pressed, the touch panel 19 is pressed. The touch panel 19 has an input function like the input device 18. When the map screen, various buttons, display menu, or the like displayed on the display monitor 16 is pressed with a finger, the touch panel 19 is pressed, and the touch panel controller 110 calculates the pressed position. The calculated pressed position is input to the control circuit 11 to scroll the road map, set the destination, and execute functions corresponding to various buttons and display menus.

  When the destination is set by the occupant, the navigation apparatus 1 performs a route calculation from the current location detected by the GPS sensor 14c to the destination based on a predetermined algorithm. Hereinafter, this route calculation is referred to as route search. The route thus obtained (hereinafter referred to as a searched route) is displayed on the screen in a manner different from other roads by changing the display form, for example, the display color. Thereby, the passenger can recognize the search route on the map on the screen. In addition, the navigation device 1 instructs the occupant to travel in the traveling direction using a screen, voice, or the like so that the vehicle can travel according to the search route or a route designated by the occupant tracing the road.

  The disc drive 111 is loaded with a DVD-ROM 112 on which map data to be displayed on the display monitor 16 is recorded. The map data includes map display data, route search data, and the like, and the display and route search data include road link information and node information. The map display data has map data of a plurality of scales from a wide area to details, and the scale of the display map can be changed according to the passenger's request. The disk drive 111 reads map data for displaying a map on the display monitor 16 from the loaded DVD-ROM 112. The map data may be read from a recording medium other than the DVD-ROM 112, such as a CD-ROM or a hard disk.

  Next, the display screen of the scrolled road map in the navigation device 1 according to the embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a diagram for explaining a road map displayed on the display monitor 16 by scrolling the road map. The road map 20 shows a part of the road map stored in the DVD-ROM 112. The road maps 21a to 21d included in the road map 20 have a size corresponding to one screen of the display monitor 16. Have First, a road map 21a on which the vehicle position mark 22 indicating the current location of the vehicle is displayed is displayed on the display monitor 16, and the road map scrolls in the direction of the arrow 23 in accordance with the scroll operation of the occupant. It is assumed that the maps 21b to 21d are displayed on the display monitor 16 in order.

  FIG. 3 is a diagram for explaining the scrolling operation of the road map 21a displayed on the display monitor 16. In FIG. 3, the vehicle position mark 22 is displayed at the center of the road map 21a. When the position 31 is pressed, the center of the road map moves from the position of the vehicle position mark 22 to the pressed position 31, The road map 21a is scrolled according to the arrow 32, and the display screen shown in FIG.

  FIG. 4 is a diagram for explaining a road map 21b displayed by scrolling the road map 21a. When the occupant presses the position 31 in FIG. 3, the road map 21a is scrolled in the direction of the arrow 23 in FIG. In the road map 21b, a cursor 41 is displayed at the center, and an arrow 42 connecting the cursor 41 and the vehicle position mark 22 is displayed. An arrow 42 indicates a scroll direction from the road map 21a to the road map 21b. A scroll reset button 43 is displayed at the lower right of the road map 21b. When the scroll reset button 43 is pressed, the road map 21a before the scroll operation is displayed on the display monitor 16.

  FIG. 5 is a diagram for explaining a road map 21c displayed by scrolling the road map 21b. When the occupant continues to press the position 31 on the display screen of FIG. 4, the road map 21 b is scrolled in the direction of the arrow 23 in FIG. 2, and the road map 21 c is displayed on the display monitor 16. A cursor 41 is displayed at the center of the road map 21c as with the road map 21b, and an arrow 51 is also displayed as will be described later. A scroll reset button 43 is displayed at the lower right of the road map 21c.

  The arrow 51 is an arrow connecting the center position of the road map 21a and the center of the road map 21c, similarly to the arrow 42 in FIG. This arrow 51 also indicates the scroll direction from the road map 21a. The size of the collar 51a of the arrow 51 and the thickness of the arrow handle 51b increase as the distance between the center position of the road map 21a and the center of the road map 21c increases. For this reason, the arrow 51 of the road map 21c is displayed larger than the arrow 42 of the road map 21b, and the arrow 51b is displayed thicker.

  FIG. 6 is a diagram for explaining a road map 21d displayed by scrolling the road map 21c. When the occupant continues to press the position 31 on the display screen in FIG. 5, the road map 21 c is scrolled in the direction of the arrow 23 in FIG. 2, and the road map 21 d is displayed on the display monitor 16. A cursor 41 is displayed at the center of the road map 21d as with the road map 21b, and an arrow 61 is displayed. A scroll reset button 43 is displayed at the lower right of the road map 21d. The arrow 61 is an arrow connecting the center position of the road map 21a and the center of the road map 21c, similarly to the arrow 42 in FIG. This arrow 61 also indicates the scroll direction from the road map 21a. Since the distance between the center position of the road map 21a and the center of the road map 21d is larger than the distance between the center position of the road map 21a and the center of the road map 21c, the distance of the road map 21d is larger than the arrow 51 of the road map 21c. In the arrow 61, the size of the collar portion 61a is displayed larger, and the thickness of the arrow handle portion 61b is also displayed thicker.

  Next, scroll display processing of the navigation device 1 of the present embodiment will be described with reference to the flowchart of FIG. 7 is executed in the control circuit 11 by a program that starts when the road map 21a is displayed on the display monitor 16.

  In step S701, the center coordinates of the center of the road map displayed on the display monitor 16 are detected. In step S702, it is determined whether a scroll operation of the road map has been performed by pressing the display monitor 16. When the scroll operation is performed, an affirmative determination is made in step S702, and the process proceeds to step S703. If the scroll operation is not performed, a negative determination is made in step S702, and step S702 is repeated. In step S703, the position on the display monitor 16 after being pressed by the scroll operation, that is, the coordinates on the road map corresponding to the pressed location are detected. Hereinafter, for convenience of explanation, a location on the road map corresponding to the display monitor center is referred to as a road map center, and its coordinates are referred to as road center coordinates.

  In step S704, the distance of the road map moved by scrolling, that is, the movement distance of the road map center coordinates is calculated from the road map center coordinates before and after the scroll operation. In step S705, the size of the collar portion of the arrow displayed on the display monitor 16 is determined based on the movement distance. In step S706, the thickness of the arrowhead portion of the arrow displayed on the display monitor 16 is determined based on the moving distance. In step S707, the center of the road map before the scroll operation and the center of the road map after the scroll operation are connected by an arrow. In step S708, an arrow is displayed on the road map after the scroll operation. In step S709, it is determined whether the scroll reset button 43 has been pressed. If it is pressed, an affirmative decision is made in step S709 and the routine returns. If not pressed, a negative determination is made in step S709, and the process returns to step S702.

The navigation device 1 according to the above embodiment has the following operational effects.
(1) Since the road maps 21a and 21b, 21c before and after the scrolling operation are connected to each other by arrows 41 (51, 61), the visual recognition of the scroll direction of the road map is improved.

(2) The arrow connecting the center of the road map 21a before the scroll operation and the center of the road map 21b, 21c, 21d after the scroll operation is displayed larger when the scroll distance is increased and the moving distance is increased. Moreover, the arrow handle parts 51b and 61b are displayed thickly, and the arrows are displayed prominently. Therefore, it is possible to alert the occupant about the increased scroll amount of the road map.

The navigation apparatus 1 of the above embodiment can be modified as follows.
(1) When the moving distance of the road map by scroll operation becomes large, the collar parts 51a and 61a are large, and the arrow handle parts 51b and 61b are displayed thickly. However, the display is not limited to the embodiment as long as the arrow is displayed in a conspicuous manner as the moving distance increases. For example, only the collar portions 51a and 61a may be displayed larger, or only the arrow handle portions 51b and 61b may be displayed thicker. As shown in FIG. 8, when the road map is scrolled from the road map 21c to the road map 21d, the line of the arrow 82 of the road map 21d is compared with the thickness of the line 81 of the arrow of the road map 21c. You may make it thick. When the arrow is displayed while being filled with transparency to the road map, that is, when the arrow is displayed on the road map so that the road map appears to be transparent, as shown in FIG. When the road map is scrolled from 21c to the road map 21d, the degree of transmission of the arrow 92 of the road map 21d may be smaller than the degree of transmission of the arrow 91 of the road map 21c. Here, the transmission of the arrow to the road map includes semi-transmission. Furthermore, when the arrow is displayed as a dotted line and the distance between the points constituting the dotted line becomes narrower as the moving distance of the road map becomes larger, the road map is scrolled from the road map 21c to the road map 21d as shown in FIG. Then, the distance between the points constituting the dotted line of the arrow 102 of the road map 21d is narrower than the distance between the points constituting the dotted line of the arrow 101 of the road map 21c, and the straight line may be displayed. .

(2) Instead of connecting the centers of the road maps 21a and 21b, 21c and 21d before and after the scroll operation, an arrow connecting the current location of the vehicle and the centers of the road maps 21b, 21c and 21d after the scroll operation may be displayed. .

(3) The position serving as a reference for calculating the movement distance may be the current location of the vehicle instead of the center of the road map 21a before the scroll operation. Further, the position serving as a reference for calculating the movement distance is not limited to the center of the road maps 21b, 21c, and 21d after the scroll operation, and may be any predetermined position of the road maps 21b, 21c, and 21d after the scroll operation. Anywhere.

(4) The arrow is displayed in a conspicuous manner as the moving distance of the road map displayed by scrolling and displayed on the display monitor 16 increases, but the display manner of the arrow is changed for each predetermined distance. Also good. For example, you may make it display the collar part and arrow part of an arrow large every movement distance.

The correspondence between the elements of the claims and the embodiments will be described.
The road map display means of the present invention corresponds to the control circuit 11, and the scroll means corresponds to the control circuit 11 and the touch panel 19. The arrow display means corresponds to the control circuit 11 and the display monitor 16. In addition, the above description is an example to the last, and when interpreting invention, it is not limited to the correspondence of the component of said embodiment and the component of this invention at all.

It is a block diagram which shows the structure of the navigation apparatus of embodiment of this invention. It is a figure for demonstrating the road map displayed on a display monitor by scrolling a road map. It is a figure for demonstrating scroll operation of the road map displayed on the display monitor. It is a figure for demonstrating the road map which scrolled and displayed the road map of FIG. It is a figure for demonstrating the road map which scrolled and displayed the road map of FIG. It is a figure for demonstrating the road map which scrolled and displayed the road map of FIG. It is a flowchart for demonstrating the scroll display process of the navigation apparatus of this embodiment. It is a figure for demonstrating the road map after the scroll operation in other embodiment. It is a figure for demonstrating the road map after the scroll operation in other embodiment. It is a figure for demonstrating the road map after the scroll operation in other embodiment.

Explanation of symbols

1 Navigation device 11 Control circuit 12 ROM
13 RAM
14 Current location detection device 16 Display monitor 17 Input device 18 Speaker 19 Touch panel 112 DVD-ROM
20, 21a to 21d Road map 22 Own vehicle position mark 41 Cursor 42, 51, 61, 81, 82, 91, 92, 101, 102 Arrow 43 Scroll reset button

Claims (4)

Road map display means for displaying a road map on a display monitor;
Scroll means for scrolling the road map according to a scroll instruction;
Arrow display means for displaying an arrow indicating a scroll direction scrolled by the scroll means together with a scrolled road map;
The arrow display means displays bordering the arrows on line, by displaying thickened border line of the arrow in accordance with the amount of scrolling a road map to scroll increases by the scrolling means, conspicuous the arrow A navigation device characterized by displaying as described above. Road map display means for displaying a road map on a display monitor;
Scroll means for scrolling the road map according to a scroll instruction;
Arrow display means for displaying an arrow indicating a scroll direction scrolled by the scroll means together with a scrolled road map;
The arrow display means, said road map arrow is displayed on the road map as seen through a small degree of the transmission in accordance with the amount of scrolling a road map to scroll increases by the scrolling means By doing so, the navigation device is characterized in that the arrow is displayed prominently . Road map display means for displaying a road map on a display monitor;
Scroll means for scrolling the road map according to a scroll instruction;
Arrow display means for displaying an arrow indicating a scroll direction scrolled by the scroll means together with a scrolled road map;
The arrow display means displays the arrow in dotted lines, be displayed by narrowing the distance between points constituting a dotted pre SL arrows follow the scroll of a road map to scroll increases by the scrolling means To display the arrow in a conspicuous manner . The navigation device according to any one of claims 1 to 3 ,
The navigation device characterized in that the arrow display means displays the heel portion of the arrow larger and / or displays the arrowhead portion of the arrow thicker as the scroll amount becomes larger.

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