JP2007040890A - Navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system capable of determining a proper wideness of area, based on coordinates on a screen of a display input via an input device such as a touch panel. <P>SOLUTION: In this navigation system 1 provided with an area determination means 2 for determining the area including the coordinates on the screen of the display input via the input device such as the touch panel, the area determination means 2 interlocks the wideness of the area with a magnification of a display content in a map or the like displayed on the screen for guiding a route. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a navigation device that operates based on coordinates input via an input device.

As a conventional navigation device, a main point displayed in a predetermined area centered on coordinates input via an input device such as a touch panel is searched, and the searched main point is displayed in a display form that can be identified. In addition, there are things that are set as destinations and departure points. In addition, when the conventional navigation device is traced with a finger on the road map via an input device such as a touch panel, the display form that can distinguish the road map of the portion traced with the finger from other road maps Are displayed and set as a travel route (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 09-072753

  However, in the conventional navigation device, since the area determined by the input coordinates is constant, for example, when the scale of the map is small like when displaying the whole of Japan, The determined area may include points or roads that are not intended by the user. For example, when the map scale is large, such as when a city map is displayed, the determined area may not include a point or road intended by the user.

  As described above, the conventional navigation device has a problem that it is not possible to determine an area having an appropriate width based on the input coordinates.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a navigation device capable of determining an area having an appropriate size based on input coordinates.

  The navigation device according to the present invention is a navigation device including a region determination unit that determines a region including coordinates on a screen of a display device that is input via an input device, wherein the region determination unit is displayed on the screen. It has a configuration in which the size of the area is linked to the enlargement ratio of the display content.

  With this configuration, the navigation device of the present invention is input in order to link the size of the region including the coordinates on the screen of the display device input via the input device with the magnification of the display content displayed on the screen. An area having an appropriate width can be determined based on the coordinates obtained.

  The area determination means may link the area of the area including the line with the enlargement ratio when information representing a line is input via the input device.

  With this configuration, the navigation device of the present invention can determine an area having an appropriate width based on the input information representing the line even when the information representing the line is input via the input device. .

  The area determination means may display the coordinates and the area on the display device in a display form that can be visually identified with respect to other areas.

  With this configuration, the navigation device of the present invention can make the user easily recognize the input coordinates and the determined area.

  Further, the area determination means may determine whether or not to link the size of the area to the enlargement ratio based on the interlock setting information input via the input device.

  With this configuration, the navigation device of the present invention can allow the user to select whether or not to link the area to be determined with the enlargement ratio of the display content.

  The display content may represent a map, and the area determination means may make the size of the area proportional to the scale of the map.

  With this configuration, the navigation device of the present invention can determine an area having an appropriate size according to the scale of the map being displayed.

  Further, the area determination means may make the width of the area proportional to the scale of the map based on the ratio input via the input device.

  With this configuration, the navigation apparatus of the present invention can allow the user to set the ratio between the area size and the map scale.

  The present invention provides a navigation device having an effect that an area having an appropriate width can be determined based on input coordinates.

  Embodiments of the present invention will be described below with reference to the drawings.

  A navigation device according to an embodiment of the present invention is shown in FIG.

  The navigation device 1 includes an area determination unit 2 that determines an area for searching for a point or a road, a pressing pressure center calculation unit 3 that calculates a pressure center coordinate indicating a position where the pressure is highest when the touch panel is pressed, and an area. Scale-linked setting holding means 4 for holding linkage setting information indicating whether or not the size of the area determined by the decision means 2 is linked to the map scale, and current scale holding means for holding the scale of the map being displayed 5, an interlocking ratio holding unit 6 that holds an interlocking ratio that interlocks the size of the area with the scale of the map, and a map display unit 7 that displays a map.

  The area determination unit 2 and the pressing pressure center calculation unit 3 are configured by a CPU (Central Processing Unit) that executes a program.

  The area determining means 2 calculates the radius of the area from the scale of the map held by the current scale holding means 5 and the interlocking ratio held by the interlocking ratio holding means 6, and is calculated by the pressing pressure center calculating means 3. A circular area having the radius centered on the pressure center coordinate is determined.

  The scale interlocking setting holding unit 4, the current scale holding unit 5, and the interlocking ratio holding unit 6 are constituted by a storage medium such as a hard disk device or a flash memory.

  The linkage setting information held by the scale linkage setting holding unit 4 is set by the user via an input device such as a touch panel.

  The interlock ratio held by the interlock ratio holding means 6 may be a predetermined value or an arbitrary value input by the user via an input device such as a touch panel.

  The map display means 7 is constituted by a display device such as a liquid crystal display with a touch panel, and displays a map and an operation menu necessary for guiding a route.

  The operation of the navigation device 1 configured as described above will be described with reference to FIG.

  First, when the touch panel is pressed (S10), based on the interlocking setting information held by the scale interlocking setting holding means 4, the area determining means 2 determines whether or not the area size is interlocked with the map scale. It is judged (S11).

  Here, when it is determined that the size of the area is linked to the scale of the map, the scale of the map held by the current scale holding means 5 is acquired by the area determining means 2 (S12).

  Next, the interlocking ratio retained by the interlocking ratio retaining means 6 is acquired by the area determining means 2 (S13).

  Next, the area determining means 2 calculates the radius of the area to be determined from the scale of the map acquired in step S12 and the interlocking ratio acquired in step S13 (S14).

  On the other hand, if it is determined in step S11 that the size of the region is not linked to the scale, a predetermined radius is acquired by the region determining means 2 (S15).

  When the radius is obtained in this way, the pressure center coordinate indicating the position where the pressure when the touch panel is pressed is the highest is calculated by the pressing pressure center calculating means 3 (S16).

  Next, a pressure center circle having the radius obtained in step S14 or step S15 with the pressure center coordinate calculated in step S16 as the center is obtained by the region determining means 2 (S17).

  Next, the pressure center coordinates calculated in step S16 and the area of the pressure center circle obtained in step S17 are displayed in a display form that can be visually distinguished from other areas by the map display means 7. (S18).

  Next, it is determined whether or not the touch panel is continuously pressed (S19).

  Here, for example, when it is determined that the touch panel is continuously pressed, such as when the displayed road map is being traced, the process returns to step S16, and a new pressure center coordinate is calculated. In step S17, a new pressure center circle is obtained. In step S18, the newly obtained pressure center coordinates and the area of the pressure center circle are superimposed on the area already displayed in a display form that can be identified with respect to the other area. It is displayed in a visually identifiable display form.

  If it is determined in step S19 that the touch panel has not been pressed, the operation of the navigation device 1 ends.

  In the navigation device 1 operating as described above, examples of display on the map display means 7 are shown in FIGS.

  For example, FIG. 3A is a display example when a road map is traced for setting a stop point in a state where a route guide road 32 from the vehicle position mark 30 to the destination 31 is set. . A display form in which the pressure center display line 33 represented by a set of pressure center coordinates sequentially calculated by the pressed pressure center calculation means 3 from the start to the end of the tracing operation can be distinguished from other areas by the map display means 7 Is displayed. Further, the setting target area 34 including the pressure center display line 33 is determined by the area determining means 2 and displayed in a display form that can be distinguished from other areas by the map display means 7.

  The setting target area 34 is determined as shown in detail in FIG. As the tracing operation starts, the pressure center circle 40 having a radius 42 centered on the pressure center coordinate is sequentially obtained in the traced direction 41, and an area 43 represented by a collection of the pressure center circles 40 at the end of the tracing operation is set. The region 34 is determined.

  3B is similar to FIG. 3A in that the route guide path 37 from the vehicle position mark 35 to the destination is set, and the map scale is smaller than that in FIG. It is an example of a display when a road map is traced for setting a stop point when the size is large. A display form in which the pressure center display line 38 represented by a collection of pressure center coordinates sequentially calculated by the pressed pressure center calculation means 3 from the start to the end of the tracing operation can be distinguished from other areas by the map display means 7. Is displayed. The setting target area 39 including the pressure center display line 38 is determined by the area determining means 2 and displayed in a display form that can be distinguished from other areas by the map display means 7.

  The setting target area 39 is determined as shown in detail in FIG. When the tracing operation starts, a pressure center circle 45 having a radius 47 centered on the pressure center coordinates is sequentially obtained in the traced direction 46, and an area 48 represented by a collection of the pressure center circles 45 at the end of the tracing operation is set. The region 39 is determined.

  4 (a) and 4 (b), the radii 42 and 47 are calculated in conjunction with the scale of the map, so the radius 47 is larger than the radius 42, and the setting target area 39 in FIGS. It becomes wider than the setting target area 34.

  For this reason, for example, in FIG. 3A, an appropriately small setting target region 34 that does not include a nearby point or a road is determined. Further, in FIG. 3B, the setting target area 39 having an appropriate size including the point or road originally intended by the user is determined even when coordinates slightly shifted are input.

  Such a navigation device 1 according to the present embodiment links the size of the area including the input coordinates to the scale of the map being displayed, and therefore performs various settings such as a starting point and a destination, and operations such as searching for surroundings. It is possible to determine an area of an appropriate area including a point and road intended by the user.

  In the present embodiment, when the information representing the line is input via the input device, the operation example in which the region determination unit 2 determines the region by sequentially superposing the pressure center circles has been described. May be determined by complementing the region determining means 2 so that the boundary of the region where the pressure center circles are overlapped is smooth.

  Further, in the present embodiment, the navigation device 1 has been described as operating based on the coordinates input from the touch panel. However, the navigation device according to the present invention may be another input device such as a touch pad or a mouse. You may make it operate | move based on the coordinate input from.

  As described above, the navigation device according to the present invention has an effect that it is possible to determine an area having an appropriate size based on coordinates input via the input device, for example, via the input device. This is useful as a navigation device that operates based on the input coordinates.

The block diagram of the navigation apparatus in one embodiment of this invention The flowchart for demonstrating operation | movement of the navigation apparatus in one embodiment of this invention. Display example of map display means constituting navigation device in one embodiment of the present invention The figure which shows the example of the area | region determined by the area | region determination means which comprises the navigation apparatus in one embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Area | region determination means 3 Pressing pressure center calculation means 4 Scale interlocking setting holding means 5 Current scale holding means 6 Interlocking ratio holding means 7 Map display means

Claims (6)

In a navigation device comprising region determining means for determining a region including coordinates on a screen of a display device input via an input device,
The navigation apparatus characterized in that the area determination means links the area size to the enlargement ratio of the display content displayed on the screen. The navigation device according to claim 1, wherein when the information representing a line is input via the input device, the region determination unit links the size of the region including the line with the enlargement factor. . The said area | region determination means displays the said coordinate and the said area | region on the said display apparatus with the display form which can be visually identified with respect to another area | region. Navigation device. The region determination means determines whether to link the size of the region to the enlargement ratio based on interlocking setting information input via an input device. 4. The navigation device according to any one of 3. The display content represents a map,
The navigation device according to any one of claims 1 to 4, wherein the area determination means makes the width of the area proportional to the scale of the map. 6. The navigation apparatus according to claim 5, wherein the area determination unit makes the width of the area proportional to the scale of the map based on a ratio input via the input device.