JP2007298646A - Onboard map display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the operability of an onboard map display device wherein a map is scrolled by the operation of a rotary type dial. <P>SOLUTION: When a button in upper right direction shown by a hatched portion in the figure is pressed while a map screen (a) is displayed, a cursor 22 for indicating the scroll direction of the map is displayed as in (b). When a scroll dial is rotated in the right direction, the map is scrolled in the upper right direction to display a map screen as in (c). Further, when the scroll dial 20 is rotated in the left direction, the map is scrolled in the lower left direction to return to the map screen as in (b). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an in-vehicle map display device such as a navigation device that is mounted on a vehicle and scrolls a map displayed in accordance with a user instruction.

  In order to improve operability when scrolling a map, a method of scrolling a map by operating a rotary dial is known (see Patent Document 1). In the method disclosed in Patent Document 1, the map is scrolled in the designated direction or in the direction opposite to the designated direction by pressing the forward switch or the backward switch after the direction is designated by rotating the dial.

JP 2004-258501 A

  In the map scrolling method disclosed in Patent Document 1, since the map is scrolled by pressing a forward switch or a backward switch, the scroll amount and scroll speed of the map cannot be adjusted. As described above, the conventional map scrolling method is not sufficient for operability when the map is scrolled by operating the rotary dial.

An in-vehicle map display device according to a first aspect of the invention includes a rotation operation means that rotates to the left and right according to a user operation, a scroll direction determination means that determines a map scroll direction based on the rotation direction of the rotation operation means, and a rotation The scroll amount determining means for determining the scroll amount of the map based on the rotation amount of the operating means, and the scroll amount determined by the scroll amount determining means toward the scroll direction determined by the scroll direction determining means on the display monitor. Display control means for scrolling the displayed map.
According to a second aspect of the present invention, in the on-vehicle map display device according to the first aspect, the vehicle-mounted map display device further includes a direction designation operation means for designating any direction according to a user operation, and the rotation operation means is rotated rightward. The scroll direction determining means uses the direction specified by the direction specifying operation means as the scroll direction of the map, and when the rotation operating means is rotated to the left, the scroll direction determining means has the direction specified by the direction specifying operation means. The reverse direction is the scroll direction of the map.
According to a third aspect of the present invention, in the on-vehicle map display device according to the first or second aspect, the map displayed on the display monitor is continuously scrolled when the amount of rotation of the rotation operation means exceeds a predetermined amount. .
According to a fourth aspect of the present invention, in the on-vehicle map display device according to the third aspect, when the map is continuously scrolled by rotating the rotation operation means by a predetermined amount or more in either the left or right direction, the direction is opposite to that direction. When the rotation operation means is rotated, the continuous scrolling of the map is stopped.
An in-vehicle map display device according to a fifth aspect of the invention is based on a rotation operation means that rotates to the left and right according to a user operation, a touch panel means that detects a touch position on a display monitor, and a touch position detected by the touch panel means. Scroll direction determination means for determining the scroll direction of the map, scroll speed determination means for determining the scroll speed of the map based on the rotation direction of the rotation operation means, and the scroll direction determined by the scroll direction determination means, Display control means for continuously scrolling the map displayed on the display monitor at the scroll speed determined by the scroll speed determination means.
According to a sixth aspect of the present invention, in the on-vehicle map display device of the fifth aspect, when the rotation operation means is rotated in the right direction, the scroll speed determination means accelerates the map scroll speed, and the rotation operation means rotates in the left direction. In this case, the scroll speed determining means decelerates the map scroll speed.
According to a seventh aspect of the present invention, in the on-vehicle map display device according to the fifth or sixth aspect, the scroll speed determining means further determines the map scroll speed based on the rotation amount of the rotation operation means.

  ADVANTAGE OF THE INVENTION According to this invention, the operativity of the vehicle-mounted map display apparatus which operates a rotary dial and scrolls a map can be improved.

-First embodiment-
FIG. 1 shows the configuration of the navigation apparatus according to the first embodiment of the present invention. This navigation apparatus is mounted on a vehicle, displays a searched recommended route on a map, and guides the host vehicle to a destination according to the recommended route. A navigation device 1 shown in FIG. 1 includes a control circuit 11, a ROM 12, a RAM 13, a current location detection device 14, an image memory 15, a display monitor 16, an input device 17, and a disk drive 18. The disk drive 18 is loaded with a DVD-ROM 19 in which map data is recorded.

  The control circuit 11 includes a microprocessor and its peripheral circuits, and executes a control program stored in the ROM 12 using the RAM 13 as a work area. Thereby, for example, various processes and controls such as setting a destination, searching for a recommended route, and displaying a map are performed in the navigation device 1.

  The current location detection device 14 is a device that detects the current location of the host vehicle, that is, the location of the host vehicle. For example, a vibration gyro sensor 14a that detects the traveling direction of the host vehicle, a vehicle speed sensor 14b that detects a vehicle speed, It consists of various sensors, such as a GPS sensor 14c for detecting. The navigation device 1 can determine a route search start point, which will be described later, based on the vehicle position detected by the current location detection device 14, or can display a vehicle position mark on a map.

  The image memory 15 temporarily stores image data to be displayed on the display monitor 16. The image data includes map drawing data for displaying a map, various graphic data, and the like, and is created by the control circuit 11 based on the map data recorded on the DVD-ROM 19. The created image data is output from the control circuit 11 to the image memory 15, whereby a map is displayed on the display monitor 16.

  The input device 17 has various input switches for the user to set a destination and a transit point of the vehicle (hereinafter simply referred to as a destination). The input device 17 is realized by an operation panel, a remote controller, or the like. The user can set a destination by specifying a place name, a position on a map, and the like by operating the input device 17 in accordance with a screen instruction displayed on the display monitor 16.

  The input device 17 includes a scroll dial for detecting a user's scroll operation. The user can scroll the map displayed on the display monitor 16 in an arbitrary direction by operating the scroll dial. Details of the scroll dial will be described later.

  The disk drive 18 reads map data for displaying a map from the loaded DVD-ROM 19. This map data includes route calculation data used for route search, route guidance data such as intersection names and road names used to guide the vehicle to the destination according to the recommended route, road data representing roads, etc. ing. The map data also includes background data representing map elements other than roads such as rivers, railways, various facilities on the map (landmarks), and the like.

  In the road data, the minimum unit representing a road section is called a link, and each road is composed of a plurality of links. A point connecting the links is called a node, and each node has position information (coordinate information). The link shape, that is, the shape of the road is determined based on the position information of the node.

  Although an example using a DVD-ROM is described here, the map data may be read from a recording medium other than the DVD-ROM, such as a CD-ROM, a hard disk, or a memory card. Or it is good also as receiving the map data transmitted via a mobile telephone line etc. from the outside, and using the map data. That is, any method may be used for acquiring map data.

  When the user operates the input device 17 to set the destination, the navigation device 1 uses the current location detected by the current location detection device 14 as a route search start point and calculates a predetermined algorithm based on the above-described route calculation data. By doing so, a route search from the present location to the destination is performed. The recommended route obtained as a result of the route search is displayed on the map separately from other roads by changing its display form, for example, display color. Thus, the user can recognize the recommended route on the map displayed on the display monitor 16. In addition, the navigation device 1 guides the host vehicle by instructing the traveling direction by an image or voice to the user so that the host vehicle can travel according to the recommended route. Thus, route guidance to the destination is performed by displaying the map and guiding the vehicle to the destination according to the recommended route.

  Next, the map scrolling operation will be described. The user can scroll the map displayed on the navigation device 1 in any direction by operating the scroll dial provided as a part of the input device 17 as described above. A specific operation method at this time will be described below.

  An external view of a scroll dial provided in the navigation device 1 is shown in FIG. The scroll dial 20 has a structure that can rotate left and right about a central axis that is perpendicular to the paper surface as a rotation axis. On the upper surface of the scroll dial 20, direction buttons 21 corresponding to eight directions of up, down, left and right are arranged. The user can specify the scroll direction of the map by pressing a button corresponding to one of the direction buttons 21. The installation position of the scroll dial 20 may be on the operation panel of the navigation device 1 or may be provided on the remote control.

  The operation method of the scroll dial 20 described above will be described with reference to FIG. FIG. 3A shows an example of a map screen in which a map around the vehicle position is displayed on the display monitor 16. When scrolling this map, the user first specifies the scroll direction of the map by pressing the direction button 21. Here, it is assumed that the upper right direction button (hatched portion in the figure) of the direction buttons 21 is pressed.

  When the user presses the direction button 21, a cursor indicating the map scroll direction is displayed on the screen accordingly. The direction of the arrow of the cursor indicates that the map can be scrolled before and after the scroll direction designated by the operation of the direction button 21 from the user. A cursor 22 in FIG. 3B shows an example of a cursor displayed when the upper right direction is pressed in the direction button 21. The cursor 22 is directed to the upper right direction that is the same as the direction specified by the user with the direction button 21 and the lower left direction opposite to the direction specified by the user with the direction button 21. That is, the map can be scrolled in the upper right direction and the lower left direction.

  After the direction button 21 is pressed and the scroll direction is designated, the user next instructs the start of map scrolling by rotating the scroll dial 20 in either the left or right direction. At this time, when the scroll dial 20 is rotated in the right direction, the map scrolls in the same direction as the direction in which the direction button 21 is pressed, that is, in the upper right direction. Conversely, when the scroll dial 20 is rotated in the left direction, the map scrolls in the direction opposite to the direction in which the direction button 21 is pressed, that is, in the lower left direction. Thus, the scroll direction of the map is determined based on the rotation direction of the scroll dial 20.

  For example, if the scroll dial 20 is rotated to the right while the map screen of FIG. 3B is displayed, the map scrolls to the upper right and becomes a map screen as shown in FIG. . Further, when the scroll dial 20 is rotated to the left while the map screen of FIG. 3C is displayed, the map scrolls to the lower left and returns to the map screen as shown in FIG. . By such an operation, the user can scroll the displayed map in an arbitrary direction.

  When the map is scrolled by the operation as described above, the map scroll amount is determined based on the rotation amount of the scroll dial 20. That is, when the scroll dial 20 is rotated, the scroll amount of the map is obtained by multiplying the rotation amount, that is, the rotation angle by a predetermined magnification. Then, the map is scrolled in the direction designated by the direction button 21 (in the case of right rotation) or in the direction opposite to the direction designated by the direction button 21 (in the case of left rotation). At this time, the scroll speed may be changed according to the rotation speed of the scroll dial 20. That is, it is possible to increase the scroll speed as the rotation of the scroll dial 20 is faster, and to decrease the scroll speed as the rotation is slower.

  Further, when the rotation amount of the scroll dial 20 continues to be equal to or greater than a predetermined amount, the map is continuously scrolled at a predetermined scroll speed. As a result, when the scroll amount is large, the scroll dial 20 need not be continuously rotated. Thereafter, when the scroll dial 20 is rotated in the reverse direction, the continuous scrolling of the map is stopped.

  As described above, FIG. 4 shows a flowchart executed in the control circuit 11 when the map is scrolled by operating the scroll dial 20. In step S10, it is determined whether or not any of the direction buttons 21 is pressed on the scroll dial 20. If any one of the direction buttons is pressed, the process proceeds to the next step S20.

  In step S20, a cursor corresponding to the direction button pressed in step S10 is displayed on the display monitor 16. Thereby, for example, when the upper right direction of the direction button 21 is pressed as shown in FIG. 3, the corresponding cursor 22 is displayed on the map screen. Note that the display position of the cursor may be changed according to the direction button pressed at this time. For example, when the upper right direction of the direction button 21 is pressed, the cursor 22 is displayed on the upper right side of the screen as shown in FIG. When the lower left direction of the direction button 21 is pressed, the cursor 22 is displayed at the lower left of the screen.

  In step S30, it is determined whether or not the scroll dial 20 has been rotated rightward. When it is rotated rightward, the process proceeds to step S40, and the scroll amount is calculated. Here, as described above, the scroll amount is calculated by multiplying the rotation amount of the scroll dial 20 by a predetermined magnification. Thereby, the scroll amount of the map is determined based on the rotation amount of the scroll dial 20. If it is determined in step S30 that the scroll dial 20 has not been rotated rightward, the process proceeds to step S80.

  In step S50, the map is scrolled in the same direction as the direction button pressed in step S10. That is, when the upper right direction of the direction button 21 is pressed, the map is scrolled in the upper right direction.

  In step S60, it is determined whether scrolling for the scroll amount calculated in step S40 has been performed in step S50. If scrolling for the amount of scrolling has not been performed yet, the process returns to step S50 and continues to scroll the map. If scrolling for the amount of scrolling has been performed, the process proceeds to step S70, where scrolling is stopped. If scrolling is stopped in step S70, the process proceeds to step S80.

  In step S80, it is determined whether or not the scroll dial 20 has been rotated leftward. When it is rotated to the left, the process proceeds to step S90, and the scroll amount is calculated by multiplying the rotation amount of the scroll dial 20 by a predetermined magnification as in step S40. Thereby, the scroll amount of the map is determined based on the rotation amount of the scroll dial 20. If it is determined in step S80 that the scroll dial 20 has not been rotated leftward, the process proceeds to step S130.

  In step S100, the map is scrolled in the direction opposite to the direction button pressed in step S10. That is, when the upper right direction of the direction button 21 is pressed, the map is scrolled in the lower left direction.

  In step S110, it is determined whether scrolling for the scroll amount calculated in step S90 has been performed in step S100. If scrolling for the amount of scrolling has not been performed yet, the process returns to step S100, and scrolling of the map is continued. If scrolling for the amount of scrolling has been performed, the process proceeds to step S120, where scrolling is stopped. If scrolling is stopped in step S120, the process proceeds to step S130.

  In step S130, it is determined whether or not the scroll dial 20 has been rotated a predetermined amount or more. When the amount of rotation of the scroll dial 20 exceeds a predetermined amount, the process proceeds to step S140. On the other hand, if the amount of rotation of the scroll dial 20 is less than a certain amount, the process returns to step S10 and the above-described processing is repeated.

  In step S140, the map is scrolled continuously. At this time, if the scroll dial 20 has been rotated a certain amount or more in the right direction, the map is continuously scrolled in the same direction as the direction button pressed in step S10. On the contrary, if the scroll dial 20 has been rotated more than a certain amount in the left direction, the map is continuously scrolled in the direction opposite to the direction button pressed in step S10.

  In step S150, it is determined whether or not the scroll dial 20 has been reversely rotated. That is, if the map is continuously scrolled in the same direction as the direction button by rotating the scroll dial 20 to the right by a certain amount or more, it is determined whether or not the scroll dial 20 has been rotated leftward. On the other hand, if the map is continuously scrolled in the direction opposite to the direction button by rotating the scroll dial 20 to the left by a certain amount or more, it is determined whether or not the scroll dial 20 has been rotated rightward. . As a result of such determination, if it is determined that the scroll dial 20 has been reversely rotated, the process proceeds to step S160, and after the continuous scrolling of the map is stopped, the process returns to step S10. On the other hand, if it is determined that the scroll dial 20 is not rotated in the reverse direction, the process returns to step S140 to continue the continuous scrolling of the map.

  Note that when the map is continuously scrolled as described above, the scroll speed may be changed by operating the scroll dial 20. For example, if the map is continuously scrolled in the same direction as the direction button pressed in step S10, when the scroll dial 20 is rotated to the right, the scroll speed is gradually increased accordingly, and the map is rotated to the left. Then, the scroll speed is gradually decreased. Conversely, when the map is continuously scrolled in the direction opposite to the direction button pressed in step S10, when the scroll dial 20 is rotated in the left direction, the scroll speed is gradually increased accordingly and in the right direction. When it is rotated, the scroll speed is gradually reduced. When the scroll speed is below a certain level, stop the continuous scrolling of the map.

  If a different direction button is pressed while the map is being continuously scrolled as described above, the map scroll direction is stopped by temporarily stopping the map and returning to step S10. Can be changed. Alternatively, the scroll direction may be changed while the map is continuously scrolled.

According to the first embodiment described above, the following operational effects can be obtained.
(1) The scroll direction and the scroll amount of the map are determined based on the rotation direction and the rotation amount of the scroll dial 20, respectively, and are displayed on the display monitor 16 with the determined scroll amount toward the determined scroll direction. I decided to scroll the map. That is, when the scroll dial 20 is rotated rightward (step S30), the direction specified by the user with the direction button 21 is set as the scroll direction of the map, and the scroll amount calculated in step S40 based on the rotation amount. The map is scrolled (step S50). When the scroll dial 20 is rotated leftward (step S80), the direction opposite to the direction designated by the user by the direction button 21 is set as the map scroll direction, and the calculation is performed in step S90 based on the rotation amount. The map is scrolled by the scroll amount (step S100). Since it did in this way, the operativity of the vehicle-mounted map display apparatus which operates a rotary dial and scrolls a map can be improved.

(2) When the amount of rotation of the scroll dial 20 exceeds a predetermined amount (step S130), the map displayed on the display monitor 16 is continuously scrolled (step S140). Since it did in this way, when the scroll amount is large, it is possible to continue scrolling the map without continuing to rotate the scroll dial 20.

(3) When the map is continuously scrolled as described above, when the scroll dial 20 is rotated in the direction opposite to the direction (step S150), the continuous scrolling of the map is stopped ( Step S160). Since it did in this way, the continuous scroll of a map can be stopped by simple operation.

-Second Embodiment-
A second embodiment of the present invention will be described. In 1st Embodiment described above, the example which designates the scroll direction of a map by pushing the direction button 21 arrange | positioned on the upper surface of the scroll dial 20 was demonstrated. In contrast, in the second embodiment, an example in which a map scroll direction is designated by a touch panel operation will be described.

  FIG. 5 is an external view of a scroll dial 30 installed in place of the scroll dial 20 of FIG. 2 in the second embodiment. As described above, in the second embodiment, the scroll direction of the map is designated by a touch panel operation. For this reason, the scroll dial 30 is not provided with a direction button for indicating the scroll direction of the map, like the scroll dial 20. The other structure is the same as that of the scroll dial 20, and has a structure that can be rotated right and left.

  An operation method when scrolling the map in the second embodiment will be described with reference to FIG. FIG. 6A shows an example of a map screen in which a map around the vehicle position is displayed on the display monitor 16 as in FIG. When scrolling this map, the user first specifies the scroll direction of the map by touching the display monitor 16. For example, when the upper right direction is designated as the scroll direction of the map, the upper right portion of the screen is touched as shown in FIG. At this time, it is assumed that a touch panel capable of detecting the touch position in the input touch operation is used as the display monitor 16.

  When the user performs the touch panel operation as described above, a cursor indicating the scroll direction of the map is displayed on the screen, and scrolling of the map in that direction is started. The cursor displayed at this time is different from the cursor 22 of FIG. 3 in the first embodiment in that the arrow is directed only in the direction specified by the touch panel operation, and the map can be scrolled only in that direction. Show. FIG. 6B shows an example of a map screen on which the map is scrolled in the upper right direction and displayed when the upper right direction is instructed by the touch panel operation on the screen of FIG. 6A. In this screen, the cursor 31 indicates that the map can be scrolled in the upper right direction.

  When the scrolling of the map is started by instructing the scroll direction by the touch panel operation, the user next adjusts the scrolling speed of the map by rotating the scroll dial 30 in either the left or right direction. At this time, if the scroll dial 30 is rotated in the right direction, the scroll speed is accelerated. Conversely, if the scroll dial 30 is rotated in the left direction, the scroll speed is reduced. The amount of change in scroll speed at this time is determined according to the amount of rotation of the scroll dial 30. When the map is continuously scrolled in the upper right direction while adjusting the scroll speed, a map screen as shown in FIG. 6C is displayed.

  As described above, a flowchart executed in the control circuit 11 when the map is scrolled by operating the scroll dial 30 is shown in FIG. In step S210, it is determined whether or not a touch panel operation for designating a scroll direction is performed by the user by pressing the touch panel. When the scroll direction is designated by the touch panel operation, the process proceeds to the next step S220.

  In step S220, a cursor corresponding to the scroll direction designated by the touch panel operation detected in step S210 is displayed on the display monitor 16. As a result, when the upper right part of the screen is touched as shown in FIG. 6, the corresponding cursor 31 is displayed on the map screen. At this time, similarly to the first embodiment, the cursor display position may be changed according to the designated scroll direction.

  In step S230, the scrolling of the map is started in the scroll direction designated by the touch panel operation detected in step S210. At this time, the scrolling of the map is started at a predetermined scroll speed determined in advance.

  In step S240, it is determined whether or not the scroll dial 30 has been rotated rightward. If it is rotated rightward, the process proceeds to step S250, and the map scrolling speed is increased. The amount of change in scroll speed at this time is determined according to the amount of rotation of the scroll dial 30. That is, the map scroll speed increases as the amount of rotation of the scroll dial 30 in the right direction increases. After execution of step S250, or if it is determined in step S240 that the scroll dial 30 has not been rotated to the right, the process proceeds to step S260.

  In step S260, it is determined whether or not the scroll dial 30 has been rotated leftward. If it is rotated to the left, the process proceeds to step S270, and the map scrolling speed is decreased. The amount of change in scroll speed at this time is determined according to the amount of rotation of the scroll dial 30. That is, the map scroll speed decreases as the amount of rotation of the scroll dial 30 in the left direction increases. After executing step S270, or if it is determined in step S260 that the scroll dial 30 has not been rotated leftward, the process returns to step S210 and the above-described processing is repeated.

  As described above, when a different scroll direction is designated by the user's touch panel operation while continuously scrolling the map, it is preferable to change only the scroll direction without changing the scroll speed. In this way, the user does not have to repeatedly adjust the scroll speed.

According to the second embodiment described above, the following operational effects can be obtained.
(1) The scroll direction of the map is determined based on the touch position detected by the touch panel, and the scroll speed of the map is determined based on the rotation amount of the scroll dial 30, and is determined toward the determined scroll direction. The map displayed on the display monitor 16 is continuously scrolled at the scroll speed. That is, the scrolling of the map is started in the scroll direction designated by the touch panel operation (step S230), and when the scroll dial 30 is rotated rightward (step S240), the scroll speed is accelerated (step S250). When the scroll dial 30 is rotated leftward (step S260), the scroll speed is reduced (step S270). Since it did in this way, the operativity of the vehicle-mounted map display apparatus which operates a rotary dial and scrolls a map can be improved similarly to 1st Embodiment.

(2) When the map scroll speed is determined in step S250 or S270, the map scroll speed is further determined based on the rotation amount of the scroll dial 30. That is, in step S250, the map scroll speed is increased as the amount of rotation of the scroll dial 30 in the right direction is increased. In step S270, the map scroll speed is increased as the amount of rotation of the scroll dial 30 in the left direction is increased. Was reduced. Since it did in this way, scroll speed can be adjusted easily by simple operation.

  Note that the map display method according to each embodiment as described above can be applied to various in-vehicle devices that display a map, in addition to the vehicle navigation device. That is, the present invention can be applied to various vehicle-mounted devices that display a map screen and scroll the map screen in an arbitrary direction in accordance with a user operation.

  Each of the above-described embodiments is merely an example, and when interpreting the invention, the correspondence between the items described in each embodiment and the items described in the claims is not limited or restricted. In addition, the present invention is not limited to these contents as long as the features of the invention are not impaired.

It is a block diagram which shows the structure of the navigation apparatus by 1st Embodiment. It is an external view of the scroll dial in 1st Embodiment. It is a figure for demonstrating the operation method of the scroll dial in 1st Embodiment. It is a flowchart performed in the case of scroll operation in 1st Embodiment. It is an external view of the scroll dial in 2nd Embodiment. It is a figure for demonstrating the operation method of the scroll dial in 2nd Embodiment. It is a flowchart performed in the case of scroll operation in 2nd Embodiment.

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 Disk drive 19 DVD-ROM
20, 30 Scroll dial 21 Direction buttons

Claims (7)

Rotation operation means that rotates left and right according to the user's operation;
Scroll direction determining means for determining a scroll direction of the map based on the rotation direction of the rotation operation means;
Scroll amount determination means for determining a scroll amount of the map based on the rotation amount of the rotation operation means;
And a display control means for scrolling the map displayed on the display monitor with the scroll amount determined by the scroll amount determination means toward the scroll direction determined by the scroll direction determination means. Map display device. The in-vehicle map display device according to claim 1,
It further comprises direction designation operation means for designating any direction according to the user's operation,
When the rotation operation means is rotated in the right direction, the scroll direction determination means sets the direction designated by the direction designation operation means as the scroll direction of the map,
The on-vehicle map display device characterized in that, when the rotation operation means is rotated leftward, the scroll direction determination means sets a direction opposite to the direction specified by the direction specification operation means as a map scroll direction. . The on-vehicle map display device according to claim 1 or 2,
A vehicle-mounted map display device that continuously scrolls the map displayed on the display monitor when the rotation amount of the rotation operation means becomes a predetermined amount or more. The on-vehicle map display device according to claim 3,
When the rotation operation means is rotated a predetermined amount or more in either the left or right direction and the map is continuously scrolled, the map is continuously scrolled when the rotation operation means is rotated in the opposite direction. An on-vehicle map display device characterized by stopping. Rotation operation means that rotates left and right according to the user's operation;
Touch panel means for detecting a touch position on the display monitor;
Scroll direction determining means for determining a scroll direction of the map based on the touch position detected by the touch panel means;
Scroll speed determining means for determining the scroll speed of the map based on the rotation direction of the rotation operation means;
Display control means for continuously scrolling the map displayed on the display monitor at the scroll speed determined by the scroll speed determination means toward the scroll direction determined by the scroll direction determination means. A vehicle-mounted map display device as a feature. The in-vehicle map display device according to claim 5,
When the rotation operation means is rotated in the right direction, the scroll speed determination means accelerates the scroll speed of the map,
The on-vehicle map display device characterized in that the scroll speed determining means reduces the scroll speed of the map when the rotation operation means is rotated leftward. The on-vehicle map display device according to claim 5 or 6,
The on-vehicle map display device, wherein the scroll speed determination means further determines a map scroll speed based on a rotation amount of the rotation operation means.

Images