JP2005308411A - In-vehicle information terminal, and road map display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scrolling method for a road map enabling to scroll the road map to any position, and to reduce work of a user using key entry. <P>SOLUTION: The method determines whether a user perform input operations from the same direction using a remote control for a predetermined period (step S1), if it does, the method starts to scroll a road map automatically (step S2). After starting automatic scrolling, the method determines whether an operation to determine the input using the remote control is performed (step S4). Since the automatic scrolling is stopped when the input is determined (step S5), the automatic scrolling continues even if no direction is input with the remote control. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an in-vehicle information terminal that displays a road map.

  2. Description of the Related Art Conventionally, a navigation device that scrolls a road map when an operator inputs a scroll key is known. However, in such a device, if the scrolling distance is long, the operator must continue to input keys during that time, and the burden on the operator increases. In order to reduce the labor of the operator, there is a device that automatically scrolls to the branch point of the road along the traveling direction of the road on which the host vehicle is traveling (Patent Document 1).

Japanese Patent No. 3274591

  In the apparatus disclosed in Patent Document 1, the road map can be scrolled along the road on which the host vehicle is traveling, but cannot be scrolled in any direction. Therefore, there is a need for a scroll method that can scroll the road map in any direction and can reduce the labor of the operator by key input.

In the in-vehicle information terminal according to the first aspect of the invention, a display control means for displaying a road map on a display monitor, an operation means for accepting an operation input from the outside, and the same operation in the operation means are input for a predetermined time or more. Scroll control that continues to scroll the road map displayed on the display monitor according to the operation and continues to scroll the road map even after the same operation is not input in the operation means after the scrolling is started. Means.
According to a second aspect of the present invention, in the in-vehicle information terminal of the first aspect, the operating means is a scroll speed changing operation member for changing the scroll speed when the road map is continuously scrolled by the scroll control means by an external operation. It is what has.
According to a third aspect of the present invention, in the in-vehicle information terminal of the first aspect, the operation means is a map scale changing operation member for changing the map scale when the road map is continuously scrolled by the scroll control means by an operation from the outside. It is what has.
According to a fourth aspect of the present invention, in the in-vehicle information terminal according to any one of the first to third aspects, the operation means is a scroll for changing a scroll direction when the road map is continuously scrolled by the scroll control means by an external operation. It has a direction change operation member.
According to a fifth aspect of the present invention, in the in-vehicle information terminal according to any one of the first to fourth aspects, the display control means includes a road map that is continuously scrolled by the scroll control means, and a road map before being scrolled by the scroll control means. Are also displayed on the display monitor.
The road map display method according to the invention of claim 6 displays the road map, scrolls the road map by continuing to input the same operation from the outside for a predetermined time or more, and starts to scroll the road map. Even if the operation is not input from the outside, the road map is continuously scrolled.

  According to the present invention, when the same operation is continuously input for a predetermined time or more in the operation means, the road map displayed on the display monitor is scrolled according to the operation. Once the scrolling is started, the road map is continuously scrolled even if the operation is not input. Since it did in this way, a road map can be scrolled to arbitrary directions, reducing the operator's effort by key input.

-First embodiment-
A configuration of a navigation apparatus according to an embodiment of the present invention is shown in FIG. This navigation device is mounted on a vehicle, displays a road map for the searched recommended route, and guides the host vehicle to the destination according to the recommended route. Further, the road map can be automatically scrolled in an arbitrary direction in accordance with a user operation. The navigation apparatus shown in FIG. 1 includes a navigation main body 1 and a remote control 2. The navigation main body 1 includes a control circuit 11, ROM 12, RAM 13, current position detection device 14, image memory 15, display monitor 16, remote control receiving unit 17, and disk. It has a drive 18. The disc drive 18 is loaded with a DVD-ROM 19 in which map data is recorded. The user can cause the navigation main body 1 to execute various processes by operating the remote controller 2.

  The control circuit 11 includes a microprocessor and its peripheral circuits, and executes various control processes and controls based on map data recorded on the DVD-ROM 19 by executing a control program stored in the ROM 12 using the RAM 13 as a work area. I do. As a result, various processes are executed in the navigation main body 1. The content of the process executed by the control circuit 11 is determined according to the operation content of the remote controller 2 from the user described later.

  The current location detection device 14 is a device that detects the current location of the host vehicle. For example, a vibration gyro 14a that detects the traveling direction of the host vehicle, a vehicle speed sensor 14b that detects a vehicle speed, and a GPS sensor that detects a GPS signal from a GPS satellite. 14c and the like. The navigation main body 1 can determine a route search start point to be described later based on the current location of the host vehicle detected by the current location detection device 14.

  The image memory 15 temporarily stores image data to be displayed on the display monitor 16. This image data includes road map drawing data for displaying a road map, various graphic data, and the like, and is created in the control circuit 11 based on the map data recorded in the DVD-ROM 19. A road map is displayed on the display monitor 16 under the control of the control circuit 11 using the image data stored in the image memory 15. The display monitor 16 also displays a menu screen for the user to select processing contents to be executed by the navigation main body 1.

  The remote control receiving unit 17 receives information (hereinafter referred to as operation information) representing the operation state of the remote control 2 transmitted from the remote control 2 by infrared communication or the like, and outputs it to the control circuit 11. Various processes are executed in the control circuit 11 in accordance with the operation information. Note that what operation information is transmitted from the remote controller 2 will be described later.

  The disk drive 18 reads map data for displaying a road map from the loaded DVD-ROM 19. This map data includes route calculation data used for route search, route guidance data used to guide the vehicle to the destination according to recommended routes, such as intersection names and road names, and road data representing roads. include. The map data also includes background data representing map shapes 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 or a hard disk.

  An appearance of the remote controller 2 is shown in FIG. The remote controller 2 is provided with operation keys such as a joystick 21, a wide area button 22, a detail button 23, and a menu button 24. The operation content input from the user by these operation keys is transmitted from the transmission unit 25 to the navigation main body 1 by the above-described operation information. The operation information transmitted in this way is received by the remote control receiving unit 17 of the navigation main body 1, whereby the operation content input from the user is recognized by the navigation main body 1, and various processes are executed accordingly. .

  The joystick 21 is an operation key for inputting a direction, and can be tilted in an arbitrary direction such as up, down, left, and right by a user operation. In accordance with the direction in which the joystick 21 is tilted, the navigation main body 1 scrolls the road map displayed on the display monitor 16 or moves the selected portion on the menu screen. In addition, when scrolling a road map, the auto scroll which is demonstrated later is performed.

  The joystick 21 also serves as a determination button. The user can cause the navigation main body 1 to execute various processes by performing a decision input operation that pushes the joystick 21 in a direction perpendicular to the direction input. For example, a specific point designated by a cursor or the like on the road map displayed on the display monitor 16 is set as a destination or a transit point at the time of route search (hereinafter collectively referred to as a destination). be able to. In addition to this method, the destination can be set by inputting an address, a place name, a facility name, or the like. Further, when the menu screen is displayed on the display monitor 16, any of the menu contents on the menu screen is selected by performing the determination input operation described above, and processing corresponding to the selected menu contents is performed. Is executed in the navigation main body 1. As will be described later, it is necessary to perform this determination input operation also when stopping the auto scroll.

  The wide area button 22 and the detail button 23 are operation keys for changing the scale of the road map. When the wide area button 22 is pressed, the navigation body 1 switches to the road map that has been displayed on the display monitor 16 so far, and displays a wide area road map, that is, a road map with a small scale, by one level. On the contrary, when the detail button 23 is pressed, a detailed road map, that is, a road map with a large scale, is displayed by one level. Here, map data at a plurality of map scales is recorded in the DVD-ROM 19. As a result, the navigation body 1 can switch the scale of the road map. The wide area button 22 and the detail button 23 are also used when changing the scroll speed during auto scrolling, as will be described later.

  The menu button 23 is an operation key for displaying the above-described menu screen on the navigation main body 1. The user presses the menu button to display the menu screen on the display monitor 16 and further causes the navigation main body 1 to execute various processes by selecting the menu contents using the joystick 21 as described above. Can do.

  The remote controller 2 is usually provided with various operation keys in addition to the operation keys described above. For example, a numeric keypad for inputting numbers and various buttons for switching display contents on the screen are arranged. However, since these operation keys are not directly related to the present invention, explanation and illustration thereof will be omitted.

  When the user operates the remote controller 2 to set the destination as described above, the navigation main body 1 uses the current location detected by the current location detection device 14 as a route search start point based on the above-described route calculation data. A route search from the current location to the destination is performed by calculating a predetermined algorithm.

  The recommended route obtained as a result of the route search is displayed on the road map so as to be distinguished from other roads by changing the display form, for example, the display color. Thus, the user can recognize the recommended route on the road map displayed on the display monitor 16. Moreover, the navigation main body 1 guides the host vehicle by instructing the user to travel in the direction of the image or voice so that the host vehicle can travel according to the recommended route. Thus, route guidance to the destination is performed by guiding the host vehicle to the destination according to the recommended route.

  Next, a method for scrolling the road map displayed on the display monitor 16 will be described. As described above, the road map is scrolled according to the direction input by the user by tilting the joystick 21 of the remote controller 2. At this time, if the same direction is continuously input for a predetermined time (for example, about 2 seconds), the road map continues to scroll in the input direction at a predetermined scroll speed without operating the joystick 21 thereafter. In the present invention, this is called auto scroll. As described above, once the auto scroll is started, the auto scroll is continued even if the operation of the joystick 21 is stopped.

  During the auto scroll, the scroll speed is constant until the scroll speed is changed as described later. Here, the scrolling speed is the moving speed of the road map with respect to the screen. Therefore, even if the scroll speed is constant, the travel distance in the real space per unit time during scrolling becomes larger as the scale of the road map is wider, and conversely, the closer the detail is, the more scrolling The moving distance in the real space per unit time becomes small.

  Further, when a direction input operation is performed with the joystick 21 during the auto scroll, the auto scroll direction of the road map changes according to the direction. For example, when an upward direction is input by the joystick 21 during auto scrolling in the right direction, the auto scroll direction changes upward from that point. Thereby, the user can change the auto scroll direction of a road map to arbitrary directions. Note that the scroll speed is constant and does not change before and after the auto scroll direction changes.

  Changing the scroll speed in the auto scroll can be performed by pressing either the wide area button 22 or the detail button 23 as described above. When the wide area button 22 is pressed during auto scrolling, the scroll speed is increased accordingly, and when the detail button 23 is pressed, the scroll speed is decreased. At this time, the map scale is not changed. Although a dedicated button for changing the auto scroll speed may be provided on the remote controller 2, the number of operation buttons of the remote controller 2 is reduced by using the wide area button 22 and the detail button 23 for changing the auto scroll speed. be able to.

  In the change of the scroll speed, the amount of change in the scroll speed can be adjusted according to the number of times or time when the wide area button 22 and the detail button 23 are pressed. When adjusting by the number of times of pressing, the scrolling speed is changed step by step by a certain amount each time the button is pressed. Also, when adjusting according to the time of pressing, the scroll speed is continuously changed by increasing the change amount as the button is pressed longer. These may be used in combination.

  When the user wishes to stop auto scrolling, the user may press the joystick 21 to perform a decision input operation. When this decision input operation is performed during auto scrolling, the navigation body 1 stops auto scrolling. As described above, the user can scroll the road map displayed on the display monitor 16 to display the road map of an arbitrary region. Furthermore, by setting a point designated by a cursor or the like on the road map as a destination as described above, a recommended route to that point can be searched.

  FIG. 3 shows a flowchart of processing executed in the control circuit 11 when the above-described road map is automatically scrolled. This processing flow is executed when a road map is displayed on the display monitor 16. In step S1, it is determined whether or not a direction input operation for a predetermined time or more in the same direction has been performed by the user's operation of the joystick 21 as described above. If the direction input operation has been performed for a predetermined time or longer, the process proceeds to step S2, and if not, step S1 is repeated.

  In step S2, auto-scrolling is started on the road map displayed on the display monitor 16 in the direction input in step S1 at a predetermined scroll speed. In the next step S <b> 3, a key input process for inputting each operation key of the remote controller 2 is executed. The processing contents at this time will be described later with reference to FIG.

  In step S4, it is determined whether or not a determination input operation has been performed by the user by pressing the joystick 21. If a decision input operation has been performed, the process proceeds to step S5. If not, the process returns to step S3, and steps S3 and S4 are repeatedly executed until a decision input operation is performed. In step S5, the auto scroll started in step S2 is stopped. After executing step S5, the processing flow of FIG. 3 is terminated.

  Note that after the process of step S5 is executed, the process returns to step S1 to stop the auto scroll, and then when the direction input for a predetermined time or more is performed by operating the joystick 21, the auto scroll is started again. You may do it. As described above, while the road map is displayed, the process of FIG. 3 may always be executed so that auto-scrolling is performed according to an operation from the user.

  Next, the contents of the key input process executed in step S3 will be described with reference to the flowchart shown in FIG. In step S31, it is determined whether or not the wide area button 22 of the remote controller 2 has been pressed. If the button is pressed, the process proceeds to step S32, where the auto scroll speed is changed by increasing the scroll speed of the road map in step S32. At this time, as described above, the amount of increase in the scroll speed is adjusted according to the number or time of pressing the wide area button 22. After executing step S32, the process proceeds to step S33. If the wide area button 22 is not pressed in step S31, the process proceeds to step S33 without executing step S32.

  In step S33, it is determined whether or not the detail button 23 has been pressed. If the button is pressed, the process proceeds to step S34, where the auto scroll speed is changed by reducing the scroll speed of the road map in step S34. At this time, as described above, the scroll speed reduction amount is adjusted according to the number of times or the time when the detail button 23 is pressed. After executing step S34, the process proceeds to step S35. If the detail button 23 is not pressed in step S33, the process proceeds to step S35 without executing step S34.

  In step S35, it is determined whether or not a direction input by operating the joystick 21 has been performed. If there is a direction input, the process proceeds to step S36, where the auto scroll direction of the road map is changed in accordance with the input direction in step S36. At this time, the scroll speed does not change from the previous state before the direction input. That is, when the scroll speed is changed by the above-described steps S31 to S34, the scroll speed after the change is maintained. After executing step S36, the process flow of FIG. 4 is terminated and the process proceeds to step S4 of FIG. If no direction is input in step S35, the process flow in FIG. 4 is terminated without executing step S36, and the process proceeds to step S4 in FIG.

  As described above, the road map is automatically scrolled in the navigation main body 1 by the operation of the remote controller 2.

According to the first embodiment described above, the following operational effects can be obtained.
(1) It is determined whether or not an input operation in the same direction has been input for a predetermined time or more with the joystick 21 of the remote controller 2 (step S1). If the input operation continues, automatic scrolling of the road map is started (step S2). Then, once auto-scrolling is started, it is determined whether or not a decision input operation has been performed (step S4), and if so, auto-scrolling is stopped (step S5), whereby the joystick 21 is activated. Auto scrolling will continue even if there is no direction input operation by. Since it did in this way, a road map can be scrolled to arbitrary directions, reducing the operator's effort by key input.

(2) The scroll speed at the time of auto scrolling is changed according to the operation from the user input via the wide area button 22 and the detail button 23 of the remote controller 2. In addition, the scroll direction during auto scrolling is changed in accordance with the user's operation input via the joystick 21. Since it did in this way, the user can auto-scroll a road map by arbitrary scroll speed and a scroll direction.

-Second Embodiment-
A second embodiment of the present invention will be described. In the first embodiment described above, an example in which auto-scrolling of a road map is performed by operating a remote controller has been described, but in this embodiment, auto-scrolling by touch panel operation will be described. The configuration of the navigation main body 1A according to this embodiment is as shown in FIG. 5, and is the same as that of the first embodiment shown in FIG. 1 except that it has a touch panel monitor 16A instead of the display monitor 16. is there. In the present embodiment, the remote controller 2 and the remote control receiver 17 may be omitted.

  The touch panel monitor 16A displays the same road map as the display monitor 16 in the first embodiment on the screen and detects that any point on the screen is pressed (touched). This detection information is output to the control circuit 11, and various processes are executed according to the relationship with the display screen contents at that time. Thus, the user can cause the navigation main body 1A to perform various processes without using the remote control 2 by operating the touch panel monitor 16A with a finger or the like.

  For example, a road map screen as shown in FIG. 6A is displayed on the touch panel monitor 16A. Reference numeral 61 denotes a scale display, which represents the scale of the displayed road map. When the wide area button 62 is pressed on this screen, the displayed road map is switched to a one-step wide area map scale in the same manner as when the wide area button 22 is pressed in the first embodiment. When the detail button 63 is pressed, the road map is switched to a one-step detailed road map as when the detail button 23 is pressed.

  In the road map screen of FIG. 6A, when any point on the screen other than the scale display 61, the wide area button 62 and the detail button 63 is pressed (except for the vicinity of the center), the direction from the center of the screen toward the point The road map scrolls. For example, when a point 64 located on the right side of the center of the screen is pressed, the road map scrolls in the right direction. Furthermore, when the point is kept pressed for a predetermined time or longer, the automatic scrolling of the road map is started in the same manner as when the direction input operation with the joystick 21 is performed for the predetermined time or longer in the first embodiment. The

  With respect to the road map screen of FIG. 6A, when the point 64 is pressed for a predetermined time or more and the automatic scrolling of the road map is started as described above, the auto scroll screen as shown in FIG. 6B is displayed on the touch panel monitor 16A. Is displayed. In this auto scroll screen, an auto scroll speed is displayed as indicated by reference numeral 65. Here, “scrolling speed 3” represents the number of steps of the auto scrolling speed, which means the third lowest scrolling speed.

  The auto scroll screen of FIG. 6B also displays a speed increase button 66 for increasing the auto scroll speed and a speed decrease button 67 for decreasing the auto scroll speed. When any one of these buttons is pressed, the auto scroll speed is changed in the same manner as when the wide area button 22 or the detail button 23 is pressed in the first embodiment. In this auto scroll screen, the road map portion excluding the scroll speed display 65, the speed increase button 66, and the speed decrease button 67 continues to scroll to the right by auto scroll.

  In the scroll speed display 65, the speed increase button 66, and the speed decrease button 67, the display designs of the scale display 61, the wide area button 62, and the detail button 63 shown in FIG. 6A are utilized. That is, the shape and arrangement of these buttons and the like are common to each other, and only the corresponding processing contents are changed. By doing in this way, even if a button or the like different from that of the previous road map screen is displayed at the time of auto scrolling, the user can operate without a sense of incongruity.

  In the auto scroll screen of FIG. 6B, when any point on the screen other than the scroll speed display 65, the speed increase button 66, and the speed decrease button 67 is pressed (except for the vicinity of the center), the point from the center of the screen is displayed. The auto scroll direction of the road map changes in the direction toward. For example, when the point 68 positioned above the center of the screen is pressed during auto scrolling in the right direction, switching to auto scrolling in the upward direction is performed from that point. In this way, the auto scroll direction changes in the same manner as when the direction input operation is performed with the joystick 21 in the first embodiment.

  When stopping the auto scroll, a point 69 located near the center on the screen is pressed. As a result, the automatic scrolling is stopped as in the case where the determination input operation is performed in the first embodiment. At this time, it is preferable that the range of the position assumed to be near the center on the screen has a certain margin in consideration of the thickness of the user's finger, an error in pressing, and the like. As described above, the road map can be automatically scrolled in the navigation main body 1A by operating the touch panel monitor 16A.

  In the present embodiment, the image displayed on the touch panel monitor 16A may be as shown in FIG. FIG. 7A is a road map screen before the start of auto-scrolling, and a scale selection button 71 is displayed instead of the wide area button 62 and the detail button 63 of FIG. The user can change the scale of the road map by selecting an arbitrary scale using the scale selection button 71. Here, a state where a map scale of 100 m is selected is illustrated.

  With respect to the road map screen of FIG. 7A, when the automatic scrolling of the road map is started as described above, an auto scroll screen as shown in FIG. 7B is displayed. Here, a speed selection button 72 is displayed instead of the speed increase button 66 and the speed decrease button 67 of FIG. The user can change the auto scroll speed by selecting an arbitrary scroll speed using the speed selection button 72. Here, a state where the scroll speed is 3 is shown.

  According to the second embodiment described above, the same effects as those of the first embodiment can be obtained.

  In each embodiment described above, a road map around the vehicle position before auto-scrolling may be displayed together during auto-scrolling of the road map. For example, as shown in FIG. 8, the road map 81 before auto scrolling is superimposed and displayed on the road map 80 during auto scrolling. At this time, the road map 80 changes the map range displayed by auto scrolling, but the road map 81 does not change. Note that the road map during auto-scrolling and the road map before auto-scrolling may be displayed together by a method other than this, for example, a method of dividing the screen into left and right or up and down.

  Further, in each of the embodiments described above, the map speed may be changed with the scroll speed kept constant instead of changing the scroll speed during auto scrolling. That is, if the road map is wide and the map range displayed on the screen is wider, the moving distance in the real space per unit time during scrolling can be increased even if the scroll speed is constant. it can. On the contrary, if the road map is set to the detailed side, the moving distance in the real space per unit time during scrolling can be reduced. By doing in this way, as demonstrated in said each embodiment, the effect similar to changing scroll speed during auto-scrolling can be acquired. Furthermore, the case where the scroll speed is changed at a constant map scale and the case where the map scale is changed at a constant scroll speed may be used together by switching by a remote control operation.

  Further, in each of the embodiments described above, an example is described in which the scroll speed at the start of auto-scrolling is constant, but this need not be done. For example, when auto-scrolling is once stopped and then resumed, auto-scrolling may be started at the scroll speed at which auto-scrolling was previously stopped.

  Alternatively, the scroll speed at the start of auto-scrolling may be changed according to the map scale. For example, the scroll speed at the start of auto-scrolling is slowed as the map scale is widened so that the moving distance in real space per unit time during scrolling is constant, and the scrolling speed is increased as the map scale is detailed. Can do. In this case, when the scroll speed becomes too fast at detailed map scales such as 25 m and 50 m, auto-scrolling is prohibited at these map scales, or automatically switched to an appropriate map scale of about 100 m at the start of auto-scrolling. It is preferable to do so.

  In each of the above-described embodiments, the example in which the change state of the auto scroll speed is maintained even when the auto scroll direction is changed has been described. However, when the auto scroll direction is changed, the auto scroll speed may be returned to the initial state.

  In the above embodiment, an example is described in which the navigation device performs a route search based on map data recorded on a storage medium such as a DVD-ROM and guides the host vehicle according to the recommended route searched. The present invention is not limited to this content. For example, the present invention can be applied to a communication navigation apparatus that downloads map data from an information distribution center using wireless communication using a mobile phone or the like.

  The present invention is not limited to the above embodiment, and other modes conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention.

It is a block diagram which shows the structure of the navigation apparatus by the 1st Embodiment of this invention. It is a figure which shows the external appearance of a remote control. It is a flowchart of the process performed at the time of the auto scroll of a road map. It is the flowchart which showed the content of the subroutine process performed in a key input process. It is a block diagram which shows the structure of the navigation apparatus by the 2nd Embodiment of this invention. It is the figure which showed the example of a screen displayed on a touchscreen monitor in 2nd Embodiment, (a) shows the road map screen before the auto scroll start, (b) has each shown the screen during auto scroll. It is the figure which showed another example of a screen displayed on a touchscreen monitor in 2nd Embodiment, (a) shows the road map screen before the auto scroll start, (b) shows the screen during auto scroll, respectively. Yes. It is the figure which showed the example of a screen which overlapped and displayed the road map before auto-scrolling on the road map under auto-scrolling.

Explanation of symbols

1,1A Navigation body 11 Control circuit 12 ROM
13 RAM
14 Current location detection device 15 Image memory 16 Display monitor 16A Touch panel monitor 17 Remote control receiver 18 Disk drive 19 DVD-ROM
2 Remote control 21 Joystick 22 Wide area button 23 Detailed button 24 Menu button 25 Transmitter 61 Scale display 62 Wide area button 63 Detailed button 65 Scroll speed display 66 Speed increase button 67 Speed decrease button 71 Scale selection button 72 Speed selection button

Claims (6)

Display control means for displaying a road map on a display monitor;
An operation means for accepting an externally input operation;
When the same operation is continuously input for a predetermined time or more in the operation means, the road map displayed on the display monitor is scrolled according to the operation, and after the scrolling is started, the same operation is performed in the operation means. A vehicle-mounted information terminal comprising: scroll control means that continues to scroll the road map even when no operation is input. The in-vehicle information terminal according to claim 1,
The in-vehicle information terminal characterized in that the operation means includes a scroll speed change operation member for changing a scroll speed when the road map is continuously scrolled by the scroll control means by an external operation. The in-vehicle information terminal according to claim 1,
The in-vehicle information terminal characterized in that the operation means includes a map scale changing operation member for changing a map scale when the road map is continuously scrolled by the scroll control means by an operation from outside. In the in-vehicle information terminal according to any one of claims 1 to 3,
The in-vehicle information terminal characterized in that the operation means includes an operation member for changing a scroll direction for changing a scroll direction when the road map is continuously scrolled by the scroll control means by an operation from outside. In the in-vehicle information terminal according to any one of claims 1 to 4,
The in-vehicle information terminal characterized in that the display control means displays a road map that is continuously scrolled by the scroll control means and a road map before being scrolled by the scroll control means on the display monitor. . Display a road map,
Scrolling the road map by continuing to input the same operation from outside for a predetermined time,
A road map display method for an in-vehicle information terminal characterized by continuing to scroll the road map even after the same operation is not input from the outside after the start of scrolling the road map.

Images