JP2007147723A - Map display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system wherein scaling display of a road map is carried out promptly after a user depresses the road map displayed on a display monitor without the need to keep depressing the display monitor for some time. <P>SOLUTION: In order to carry out scaling display of the road map 20, the user depresses a detailed wide area button 21 so that scaling display processing of the road map is enabled, and the user depresses the point 23 in the road map 20 where the user desires enlarged display. As a result, the enlarged display of the road map is carried out with the position 23 as its center. At this time, since scroll processing of the road map is disabled, the road map 20 is not scrolled even when the road map 20 is depressed. Then, the navigation system does not have to detect depressing operation continued for some duration of time in order to decide whether the pressing operation is intended to carry out enlarged display. Thus, enlarged display of the road map 20 is carried out right after the road map 20 is depressed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a map device capable of enlarging / reducing and scrolling a map displayed on a display monitor.

In-vehicle display that enlarges and displays a road map centered on one point on the touched road map when one point on the road map displayed on the display monitor with a touch panel is continuously touched for a predetermined time or longer. An information device is known (Patent Document 1).
Japanese Patent Laid-Open No. 9-50235

  Since the in-vehicle information device described in Patent Document 1 enlarges and displays a road map after the display screen of the display monitor is continuously pressed for a predetermined time, the road map is enlarged immediately even when the display screen is pressed. There is a problem in that it is not displayed and the operator feels uncomfortable.

(1) The map display device of the invention of claim 1 is a map enlargement / reduction display means for enlarging / reducing a map when the map displayed on the display monitor is pressed, and scrolls the map when the map is pressed. A map scrolling means for switching, and a pressing operation switching means for switching whether the map is enlarged or reduced or scrolled.
(2) In the map display device according to the second aspect of the present invention, the detecting means for detecting that each of the enlargement / reduction display operation area and the scroll operation area provided on the display screen is operated, and the enlargement / reduction display operation area is pressed Then, a map enlarging / reducing display unit for enlarging / reducing the map and a map scrolling unit for scrolling the map when the scroll operation area is pressed are provided.
(3) According to a third aspect of the present invention, in the map display device according to the second aspect, the display screen of the display monitor is provided with a scroll operation area outside the enlargement / reduction display operation area.
(4) According to a fourth aspect of the present invention, in the map display device according to the second aspect, the map scroll means displays the symbol of the trackball in the scroll operation area and scrolls the map by a pseudo rotation operation of the trackball. A map display device characterized by:
(5) The invention according to claim 5 is the map display device according to claim 4, wherein the map scroll means increases the scroll speed of the map by repeating the pseudo rotation operation of the trackball. .
(6) The invention of claim 6 is the map display device according to claim 4, wherein when the map scroll means stops the pseudo-rotation operation of the trackball, the map scroll speed is maintained for a predetermined time and then gradually. It is characterized by stopping the scrolling of the map.
(7) The invention according to claim 7 is the map display device according to any one of claims 1 to 6, wherein the map enlargement / reduction display means enlarges / reduces the map centering on the point on the pressed map. It is characterized by doing.
(8) The invention according to claim 8 is the map display device according to claim 7, wherein the map enlargement / reduction display means enlarges and displays the map around a point on the pressed map while the map is pressed. It is characterized by continuing to perform or continuously displaying a reduced map.
(9) The invention of claim 9 is the map display device according to claim 8, wherein the map enlargement / reduction display means is pressed after displaying the map with the largest scale ratio while the map is pressed. It is characterized in that the map is continuously reduced and displayed around a point on the map.
(10) The invention of claim 10 is the map display device according to claim 9, wherein the map enlargement / reduction display means is pressed after displaying the map with the smallest scale ratio while the map is pressed. It is characterized in that the map continues to be enlarged and displayed around a point on the map.
(11) The invention according to claim 11 is the map display device according to claim 1, wherein the map scroll means scrolls the map so that the point on the pressed map is displayed at the center of the display screen of the display monitor. It is characterized by doing.

  According to the present invention, the map display device can immediately determine at the time of pressing that the pressing operation is to enlarge or reduce the map. That is, it is not necessary to wait for a predetermined time for the determination and determine whether the pressing is a continuous pressing or a single pressing. Therefore, if the pressing operation is performed, the map can be displayed in an enlarged manner immediately, and there is no sense of incongruity that the enlarged display of the map is not started immediately even when the display screen is pressed.

  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 display the displayed road map in an enlarged or reduced manner and can scroll by pressing the touch panel. The navigation device 1 includes a control circuit 11, ROM 12, RAM 13, current location detection device 14, image memory 15, display monitor 16, input device 17, touch panel 18, and disk drive 110.

  The touch panel 18 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 18. The touch panel 18 sends a signal corresponding to the operation position on the touch panel 18 to the touch panel control unit 19, and the touch panel control unit 19 calculates the pressed position of the touch panel 18.

  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 111, the processing result is displayed on the display monitor 16 as a recommended 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. The image data includes road map drawing data and various graphic data, which are appropriately generated based on map data stored in the DVD-ROM 111 read by the disk drive 110. The navigation device 1 can perform map display and the like by using the image data generated in this way.

  The disc drive 110 is loaded with a DVD-ROM 111 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 wide areas to details, and the scale of the display map can be changed according to the operator's request. The disk drive 110 reads map data for displaying a map on the display monitor 16 from the loaded DVD-ROM 111. The map data may be read from a recording medium other than the DVD-ROM 111, such as a CD-ROM or a hard disk.

  The display monitor 16 provides the operator 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 input device 17 has an input switch for an operator to set various commands, and is realized by a remote controller or the like. The operator manually operates the input device 17 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 18 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 18. Further, when the display screen of the display monitor 16 is pressed, the touch panel 18 is pressed. The touch panel 18 has an input function like the input device 17. When the map screen, various buttons, display menu, etc. displayed on the display monitor 16 are pressed with a finger, the touch panel 18 is pressed, and the touch position is calculated by the touch panel control unit 19. Then, the calculated pressing position is input to the control circuit 11, and a destination is set, or functions corresponding to various buttons and display menus are executed.

  When the destination is received, 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. The route thus obtained (hereinafter referred to as a recommended route) is displayed on the screen separately from other roads by changing the display form, for example, the display color. Thereby, the operator can recognize the recommended route on the map on the screen. In addition, the navigation device 1 instructs the operator in the direction of travel using a screen or voice so that the vehicle can travel according to the recommended route, thereby guiding the route of the vehicle.

  In the navigation device 1 according to the embodiment of the present invention, when the operator presses one point on the road map, the road map is enlarged / reduced around the one point, and the one point is the center of the display screen. The road map can be scrolled so that it is displayed on the screen. Hereinafter, the enlargement / reduction display and scrolling of the road map in the navigation device 1 according to the embodiment of the present invention will be described with reference to FIGS.

  The operation of the operator who enlarges and reduces the road map displayed on the display monitor 16 will be described with reference to FIG. FIG. 2 is a display screen of the display monitor 16 on which the road map 20 is displayed. A detailed wide area button 21 and a scroll button 22 are displayed on the display screen together with the road map 20. When the operator enlarges / reduces the display of the road map 20, the operator presses the detailed wide area button 21 to enable the enlargement / reduction display processing of the road map. Then, a point 23 to be enlarged and displayed on the road map 20 is pressed.

  A road map enlarged and displayed by pressing the point 23 to be enlarged will be described with reference to FIG. When the road map 20 is pressed, a road map 30 in which the road time map 20 is enlarged is displayed as shown in FIG. Here, the position on the display screen of the point 23 to be enlarged and displayed on the enlarged road map 30 is the same as that on the road map 20. If the pressing is further continued, the road map is further enlarged without changing the position on the display screen of the point 23 to be enlarged and displayed. Then, as shown in FIG. 4, the most detailed road map 40 stored as map display data on the DVD-ROM 111 is displayed.

  If the pressing is continued after the most detailed road map 40 is displayed, the road map is reduced without changing the position on the display screen of the point 23 to be enlarged and displayed. And if it continues pressing, the road map 30 of FIG. 3 will be displayed again, and the road map 20 of FIG. 2 will be displayed. Further, when the pressing is continued, the widest road map stored as map display data on the DVD-ROM 111 is displayed.

  Next, an operation of scrolling the road map displayed on the display monitor 16 will be described with reference to FIG. When the operator scrolls the road map 30, the operator presses the scroll button 22 to enable the road map scroll process. Then, the point 51 to be displayed at the center of the display screen is pressed and released. As a result, as shown in FIG. 6, the road map 30 is scrolled so that the point 51 is displayed at the center of the display screen.

  The road map display process in the navigation device 1 according to the embodiment of the present invention will be described with reference to the flowcharts of FIGS. The processing of FIGS. 7 to 9 is executed in the control circuit 11 by a program that starts when a road map is displayed on the display monitor 16.

  In step S701, it is determined whether the enlargement / reduction display process is valid. When the detailed wide area button 21 is pressed while the enlargement / reduction display process is disabled, the enlargement / reduction display process is enabled. Further, when the detailed wide area button 21 is pressed while the enlargement / reduction display process is enabled, or when the scroll button 22 is pressed while the scroll process is disabled, the enlargement / reduction display process is disabled. If the enlargement / reduction display process is valid, an affirmative determination is made in step S701 and the process proceeds to step S702. If the enlargement / reduction display processing is invalid, a negative determination is made in step S701, and the process proceeds to step S707.

  In step S <b> 702, it is determined based on a signal from the touch panel 18 whether the road map displayed on the display monitor 16 has been pressed. If the button is pressed, an affirmative determination is made in step S702 and the process proceeds to step S703. If not pressed, a negative determination is made in step S702, and the process returns to step S701. In step S <b> 703, the pressed position on the display screen of the display monitor 16 is detected by the touch panel control unit 19. In step S704, the pressing point on the road map is calculated from the pressing position on the display screen.

  In step S705, one-step detailed map data is read from the map display data stored in the DVD-ROM 111, and the road map having a large one-step scale is matched with the pressed position on the display screen. To display. In step S706, it is determined by a signal from the touch panel 18 whether the road map displayed on the display monitor 16 is pressed. If it is pressed, the process proceeds to step S708. If not pressed, the process ends.

  In step S707, it is determined whether the scroll process is valid. If the scroll button 22 is pressed while the scroll process is disabled, the scroll process is enabled. If the scroll button 22 is pressed while the scroll process is enabled, or if the detailed wide area button 21 is pressed while the enlargement / reduction display process is disabled, the scroll process is disabled. If the scroll process is valid, an affirmative determination is made in step S707 and the process proceeds to step S801 in FIG. If the scroll process is invalid, a negative determination is made in step S707, and the process returns to step S701.

  In step S708, it is determined whether the displayed road map is the most detailed map display data stored in the DVD-ROM 111. If it is the most detailed one, an affirmative determination is made in step S708, and the process proceeds to step S901 in FIG. If more detailed information exists, a negative determination is made in step S708, and the process returns to step S703.

  In step S801 of FIG. 8, it is determined from a signal from the touch panel 18 whether the road map displayed on the display monitor 16 is pressed. If it is pressed, an affirmative determination is made in step S801, and the process proceeds to step S802. If not pressed, a negative determination is made in step S801, and the process returns to step S701. In step S <b> 802, the touch position on the display screen of the display monitor 16 is detected by the touch panel control unit 19. In step S803, the pressing point on the road map is calculated from the pressing position on the display screen. In step S804, the road map is displayed with the pressed point aligned with the display center. That is, the road map is scrolled.

  In step S <b> 901 of FIG. 9, the touch position on the display screen of the display monitor 16 is detected by the touch panel control unit 19. In step S902, the pressing point on the road map is calculated from the pressing position on the display screen. In step S903, one-step wide-area map data is read from the map display data stored in the DVD-ROM 111, and the road map with a small one-step scale is matched with the pressed position on the display screen. To display. In step S904, it is determined whether the road map displayed on the display monitor 16 is pressed. If it is pressed, the process proceeds to step S905. If not pressed, the process ends.

  In step S 905, it is determined whether the displayed road map is the widest map data among the map display data stored in the DVD-ROM 111. If it is the widest area, an affirmative decision is made in step S905 and the process ends. If there is a wider area, a negative determination is made in step S905, and the process returns to step S901.

The navigation device 1 according to the above embodiment has the following operational effects.
(1) By pressing the detailed wide area button 21 or the scroll button 22, it is possible to switch between valid / invalid of the detailed wide area display process and valid / invalid of the scroll process. For this reason, the navigation apparatus 1 can immediately determine at the time of pressing that the pressing operation is to enlarge or reduce the road map. That is, it is not necessary to wait for a predetermined time for the determination and determine whether the pressing is a continuous pressing or a single pressing. Therefore, if the pressing operation is performed, the road map can be immediately displayed in an enlarged manner, and there is no sense of incongruity that the enlarged display of the road map is not started immediately even when the display screen is pressed.

(2) Since the road map is enlarged and displayed around the pressed point, the pressed point does not deviate from the display screen even if the road map is enlarged and displayed.

(3) If the button is kept pressed, the road map is enlarged and then reduced, so that it is possible to display the road map at the reduced scale at the start of pressing again, improving the convenience for the operator.

(4) Since a single pressing operation of pressing one point on the road map can perform enlargement / reduction display of the road map and scrolling of the road map, the convenience of the operator is improved.

The navigation apparatus 1 of the above embodiment can be modified as follows.
(1) If the display screen of the display monitor 16 is continuously pressed, the road map displayed on the display monitor 16 is enlarged and then reduced, but this enlarged display and reduced display are maintained while being pressed. May be repeated. By doing in this way, it is possible to grasp which point on the wide area map is the enlarged display point.

(2) The detailed wide area button 21 and the scroll button 22 can be used to switch whether the pressing operation is to enlarge or reduce the road map or to scroll the road map. An enlargement / reduction operation area in which the road map is displayed may be provided, and a scroll operation area in which the road map is scrolled may be provided.

  For example, as shown in FIG. 10, in the display screen of the display monitor 16, an area 101 indicated by a dotted line may be an enlargement / reduction operation area, and an area outside the area 101 may be a scroll operation area. When the area 101 is pressed, the road map is displayed in an enlarged / reduced manner around the pressed point on the road map 20. Further, when the area outside the area 101 is pressed, the road map 20 is scrolled in the direction of the pressed position with respect to the area 101. For example, when the area above the area 101 is pressed, the road map 20 is scrolled upward.

  Also in this case, the navigation device 1 can immediately determine at the time of pressing that the pressing operation is to enlarge or reduce the road map by the pressing position on the display screen. There is no need to detect what is going on. Therefore, if the pressing operation is performed, the road map can be immediately displayed in an enlarged manner, and there is no sense of incongruity that the enlarged display of the road map is not started immediately even when the display screen is pressed.

  Further, as shown in FIG. 11, a trackball display area 102 displaying a symbol of the trackball 103 is provided in a part of the display screen, and when the pressing operation is performed in the trackball area 102, the road map 20 scrolls and the trackball When an area other than the area 102 is pressed, the road map may be displayed in an enlarged / reduced manner around the pressed point on the road map 20. The operator can scroll the road map 20 by rubbing the trackball 103 so as to operate the actual trackball, that is, by a pseudo rotation operation of the trackball 103. For example, as shown in FIG. 12, when the trackball 103 is rubbed in the direction of the arrow 104, the road map 20 is scrolled in the direction of the arrow 104. Further, like the actual trackball, the scrolling speed of the road map 20 can be increased by repeating the pseudo rotation operation. When the pseudo rotation operation is stopped, the scrolling of the road map 20 does not stop immediately, but the scrolling speed of the road map 20 is maintained for a predetermined time, and then gradually decreases, and the scrolling of the road map 20 stops. .

  Also in this case, the navigation device 1 can immediately determine at the time of pressing that the pressing operation is to enlarge or reduce the road map by the pressing position on the display screen. There is no need to detect what is going on. Therefore, if the pressing operation is performed, the road map can be immediately displayed in an enlarged manner, and there is no sense of incongruity that the enlarged display of the road map is not started immediately even when the display screen is pressed. In addition, since the road map 20 can be scrolled by the same operation as operating the actual trackball, the scrolling operation of the road map can be performed without a sense of incongruity.

(3) If it is a map display apparatus, it will not be limited to a navigation apparatus. For example, a mobile terminal capable of displaying a map or a PDA (Personal Digital Assistance) may be used.

  The navigation device according to the present invention is not limited to the above-described embodiments and modifications.

The correspondence between the elements of the claims and the embodiments will be described.
The map enlargement / reduction display means of the present invention corresponds to the control circuit 11, the display monitor 16 and the touch panel 18, and the map scroll means corresponds to the control circuit 11, the display monitor 16 and the touch panel 18. The pressing operation switching unit and the detection unit correspond to the control circuit 11 and the touch panel 18. 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 operation for enlarging and displaying the road map displayed on the display monitor. It is a figure for demonstrating the road map expandedly displayed on the display monitor. It is a figure for demonstrating operation which displays the most detailed road map in the road map memorize | stored as map display data. It is a figure for demonstrating operation for scrolling the road map displayed on the display monitor. It is a figure for demonstrating the road map after scrolling. It is a flowchart for demonstrating the enlarged display process of a road map. It is a flowchart for demonstrating the scroll process of a road map. It is a flowchart for demonstrating the reduced display process of a road map. It is a figure for demonstrating the expansion / contraction display operation and scroll operation of the road map of the navigation apparatus in other embodiment. It is a figure for demonstrating the expansion / contraction display operation and scroll operation of the road map of the navigation apparatus in other embodiment. It is a figure for demonstrating operation of the trackball displayed on the display monitor.

Explanation of symbols

1 Navigation device 11 Control circuit 12 ROM
13 RAM
14 Current location detection device 15 Image memory 16 Display monitor 17 Input device 18 Touch panel 19 Touch panel control unit 20, 30, 40 Road map 21 Detailed wide area button 22 Scroll button 23 Point to be enlarged 51 Point to be displayed at the center of the display screen 103 Trackball 110 Disk drive 111 DVD-ROM

Claims (11)

When the map displayed on the display monitor is pressed, map enlargement / reduction display means for enlarging / reducing the map;
Map scroll means for scrolling the map when the map is pressed;
A map display device, comprising: a pressing operation switching means for switching whether the map is enlarged or reduced or scrolled. Detection means for detecting that the enlargement / reduction display operation area and the scroll operation area provided on the display screen are each operated;
When the enlargement / reduction display operation area is pressed, map enlargement / reduction display means for displaying the map in an enlarged / reduced manner,
A map display device comprising map scroll means for scrolling the map when the scroll operation area is pressed. The map display device according to claim 2,
The map display device, wherein the display screen of the display monitor is provided with the scroll operation area outside the enlargement / reduction display operation area. The map display device according to claim 2,
The map scrolling device, wherein the map scroll means displays a trackball symbol in the scroll operation area and scrolls the map by a pseudo rotation operation of the trackball. The map display device according to claim 4,
The map display device characterized in that the map scroll means increases the scroll speed of the map by repeating the pseudo rotation operation of the trackball. The map display device according to claim 4,
When the map scrolling means stops the pseudo-rotation operation of the trackball, the map scrolling device maintains the map scrolling speed for a predetermined time and then gradually decreases the map scrolling device to stop the map scrolling. The map display device according to any one of claims 1 to 6,
The map display device, wherein the map enlargement / reduction display means enlarges / reduces the map with the point on the pressed map as a center. The map display device according to claim 7,
The map enlargement / reduction display means continues to enlarge and display the map centered on a point on the pressed map while the map is being pressed, or continues to reduce the map. Map display device. The map display device according to claim 8,
The map enlargement / reduction display means displays a map with the largest scale ratio while the map is being pressed, and then continues to display the map in a reduced size around the point on the pressed map. Map display device. The map display device according to claim 9,
The map enlargement / reduction display means displays the map with the smallest scale ratio while the map is being pressed, and then continues to enlarge and display the map around the point on the pressed map. Map display device. The map display device according to claim 1,
The map display device, wherein the map scroll means scrolls the map so that the pressed point on the map is displayed at the center of the display screen of the display monitor.

Images