JP3559951B2 - Navigation device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a navigation device, and more particularly to a means for enlarging / reducing a map screen in a display device.
[0002]
[Prior art]
2. Description of the Related Art There is known an in-vehicle navigation device that displays a map screen or a position of a vehicle on a map screen on a display device based on a current position obtained by a vehicle position calculation device and map data read by a recording medium reading device, and guides the vehicle to travel. . In such an in-vehicle navigation device, specifying or changing a map display position with a remote controller and a touch panel has been performed.
[0003]
2. Description of the Related Art In a conventional in-vehicle navigation device, when a user specifies a point on a map by pinpointing, for example, destination setting, point registration, road confirmation, and the like, the map may be scrolled or enlarged or reduced. In such a case, a pointer which is a mark appearing on the screen is used. This pointer is always located at the center of the screen as shown in FIG.
[0004]
The pointer is made to coincide with the pinpointing point on the map. At this time, the map is scrolled without moving the pointer. When scrolling, the scroll direction is designated by buttons, joysticks, and the like in 4, 8, or 16 directions of the remote controller. For example, if the user wants the map display center position (pointer position) to be to the left of the current display, the user presses a left direction designation button or operates the joystick to the left.
[0005]
When the scroll direction is specified on the touch panel, the display position is scrolled to the left by touching the left part of the center of the monitor. Also, if a part below the center is touched, the display position scrolls downward. Then, even when scrolling, the pointer does not move from the center position of the screen.
[0006]
To adjust the scale of the displayed map, press the scale button on the remote controller, or touch the scale button on the monitor on the touch panel to reduce or enlarge the map display center position (pointer position). Expanding.
[0007]
[Problems to be solved by the invention]
In the above-described conventional in-vehicle navigation device, when a location is designated by a pointer in the monitor, the position on the map must be adjusted to the pointer position at the center of the screen. For example, even though a desired point is displayed on the already displayed monitor screen, the display map must be scrolled by a remote controller, touch panel touch operation, or the like, and the point must be moved to the center of the monitor. . That is, it is not possible to indicate a place other than the center of the screen.
[0008]
When scrolling is performed by a touch operation of a remote controller, a touch panel, or the like, road map data at a specified position is read by a recording medium reading device, and the road map data is displayed on a monitor. If the outside of the range of the previously read road map data is displayed even with a slight scroll operation, it is necessary to newly read the road map data and redraw the road map.
[0009]
Further, a button for enlarging / reducing the map screen on the display device is required, and the number of operation buttons increases, and the operation becomes troublesome. In particular, the operation during traveling is dangerous.
[0010]
The present invention has been made in view of the above points, and an object of the present invention is to provide a navigation device that does not require a button for enlarging or reducing a map screen on a display device.
[0011]
[Means for Solving the Problems]
A navigation device according to the present invention is a navigation device that displays a self-position mark together with a current position obtained by a self-position calculation device and map data read by a recording medium reading device on a display device, along with a map screen or a map screen. The configuration is such that the map scale is enlarged so that the point is the center of the screen while touching one point, and the map scale is reduced while touching any two points on the touch panel. It was done.
[0012]
Further, the navigation device of the present invention is a navigation device that displays a self-position mark together with a map screen or a map screen on a display device from a current position obtained by a self-position calculation device and map data read by a recording medium reading device. Touching any one point and then touching another point, the map scale is reduced so that the point touched first becomes the center of the screen while touching the other point. Things.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
An on-vehicle navigation device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a vehicle-mounted navigation device according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a main controller composed of a microcomputer or the like, which controls the entire apparatus.
[0020]
Reference numeral 2 denotes an own-vehicle position processing device, which includes an autonomous navigation sensor 2a such as a speed sensor and a direction sensor, a GPS (global positioning, system) receiver 2b, and an own-vehicle position calculating device 2c. The data is output to the main controller 1. The vehicle position processing device 2 also outputs vehicle speed data obtained from the autonomous navigation sensor 2a to the main controller 1.
[0021]
The map database 3 is composed of a CD-ROM or the like, and stores a plurality of types of map data having different scales and data such as regulations for the same area. The recording medium reading device 4 reads map data of an area designated by the main controller 1 from the map database 3 and supplies the map data to the main controller 1. The main memory 5 is backed up by a battery and stores a plurality of types of map data of different scales supplied from the main controller 1.
[0022]
The input device 6 includes a touch panel shown in FIG. 2 and a remote controller and keys shown in FIG. 4, and performs initial settings such as a current position and a destination before or during use of the device, activates the device, and scales a map screen. To change.
[0023]
The video processing device 7 includes a graphic controller 7a, a video RAM 7b, and a display device 7c. The graphic controller 7a develops and stores the map screen data calculated by the main controller 1 from the map data and the recommended route data calculated by the main controller 1 in the video RAM 7b, and stores the map screen data in the RAM 7b on a display device 7c such as an LCD. Display. Note that the display device 7c also functions as a touch panel as an input device. The audio output device 8 appropriately outputs an audio guide message according to a command from the main controller 1.
[0024]
FIG. 2 shows an example of a screen of the display device (monitor) 7c in the in-vehicle navigation device having the above configuration. FIG. 3 shows the structure of the monitor screen layer. The pointer at the position specified by the pointer layer shown in the figure and the own vehicle position at the position specified by the own vehicle position layer are superimposed on the map drawn by the map display layer. FIG. 4 shows a remote controller 6a as an input device. The remote controller 6a includes a joystick button 6b and a shift button 6c. The eight-direction buttons, the enlargement / reduction buttons, and the determination button are not shown in FIG.
[0025]
When the pointer is moved by the remote controller 6a, only the pointer indicating the point can be freely moved within the pointer free movement area surrounded by the dotted line by designating the direction using the eight direction buttons. When the pointer is moved by the touch panel, the pointer can be moved to a desired place by directly touching the place. That is, the pointer can point to a place other than the center of the screen.
[0026]
In this way, if the movement is within the currently displayed map area, the pointer indicating the point can be moved by redrawing only the pointer display layer without reading the road map data and redrawing the road map. It can be moved to the target location, and processing is performed smoothly and speedily. As a result, it is possible to easily register a destination or a point, and specify a pinpoint such as information display of the point.
[0027]
To display a range beyond the map currently displayed by the remote controller 6a, move the pointer to the monitor end (outside the free movement area of the pointer) in the direction in which scrolling is desired by using the eight direction buttons, and press the eight direction buttons. The scroll display can be performed by the operation of moving the pointer by further pressing.
[0028]
When displaying a range beyond the currently displayed map on the touch panel, the user can scroll in a desired direction by touching the monitor end in the direction in which the user wants to scroll. Alternatively, it is possible to scroll in an arbitrary direction by touching an area in eight directions indicated by white arrows shown in FIG.
[0029]
When the scale of the display map is adjusted by the remote controller, the pointer can be arbitrarily moved on the screen as described above, and can be enlarged around the pointer while the joystick button 6b is pressed from directly above. Also, while the shift button 6c of the remote controller is pressed and the joystick of the remote controller is pressed from directly above, it is possible to reduce the size around the pointer. Alternatively, by pressing a reduction / enlargement button of the remote controller, a portion centered on the pointer can be reduced / enlarged and displayed.
[0030]
When adjusting the scale of the display map using the touch panel, while touching an arbitrary point on the touch panel, the map scale is enlarged so that the point is the center of the screen, and touching any two points on the touch panel While the map scale is reduced.
[0031]
If you want to strictly determine the center of the reduced display, touch the point to be the center of the reduced display, and then touch another point (anywhere on the monitor screen). Is at the center of the screen, and the map scale is reduced. Alternatively, the screen can be enlarged / reduced by pressing a reduction / enlargement button in the monitor screen (in FIG. 2, an enlargement button is indicated by a black arrow pointing upward and a reduction button is indicated by a black arrow pointing downward).
[0032]
When registering a destination or drop-off point, move the pointer arbitrarily on the screen as described above, and press the OK button or joystick of the remote controller twice at a short interval from directly above to register the point Can be.
[0033]
In addition, when registering a point using a touch panel, the point can be registered by touching the same point in the monitor twice at short intervals. Alternatively, the pointer can be arbitrarily moved on the screen as described above, and the point can be registered by touching the touch map determination button shown in FIG.
[0034]
【The invention's effect】
According to the in-vehicle navigation device of the present invention, a button for enlarging / reducing the map screen on the display device becomes unnecessary, and the operation is simplified.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a vehicle-mounted navigation device according to an embodiment of the present invention.
FIG. 2 is a front view showing a touch panel surface of the on-vehicle navigation device.
FIG. 3 is a diagram showing each layer displayed on the touch panel surface.
FIG. 4 is a front view showing a remote controller used in the on-vehicle navigation device.
FIG. 5 is a diagram showing an example of a screen displayed on a display device of a conventional vehicle-mounted navigation device.
[Explanation of symbols]
1 main controller 2 own vehicle position processing device, 2a autonomous navigation sensor, 2b GPS receiver, 2c
Own vehicle position calculation device 3 map database 4 recording medium reading device 5 main storage memory 6 input device, 6a remote controller, 6b joystick button, 6c shift button 7, video processing device, 7a graphics controller, 7b video RAM,
7c display device 8 audio output device

Claims (2)

In a navigation device that displays a map screen or a self-position mark together with a map screen on a display device based on the current position obtained by the self-position calculation device and the map data read by the recording medium reading device, an arbitrary point on the touch panel is touched. A navigation device configured to enlarge the map scale so that the point is the center of the screen during the interval, and to reduce the map scale while touching any two points on the touch panel. In a navigation device that displays a map screen or a self-position mark together with a map screen on a display device from the current position obtained by the self-position calculation device and the map data read by the recording medium reading device, touch an arbitrary point on the touch panel, The navigation device is configured such that, when another point is touched, the map scale is reduced such that the point touched first becomes the center of the screen while the other point is touched.

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