JP2012042447A - Map display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a map in a mode in which, in the case where a movement destination point is present outside of the frame of the screen of a display unit, the positional relation between a movement source point and the movement destination point can be obtained.SOLUTION: Using a movement source area extraction unit 20, a map display device 10 extracts an area including a movement source point as a movement source area on a map displayed on the screen of a display unit 16 based on map data. Using a movement destination area extracting unit 21, the device 10 extracts an area including a movement destination point as a movement destination area. Using a movement destination area position change unit 22, the device 10 changes the position of the movement destination area on the screen of the display unit 16 while maintaining the state in which the movement source area is displayed on the screen of the display unit 16. Using a scale change unit 23, the device 10 changes the scale of the map between the movement source area and the movement destination area and displays it on the screen of the display unit 16.

Description

  The present invention relates to a map display device that displays a map on a screen based on map data.

For example, a map display device provided in a car navigation system mounted on a car displays a map on a screen of a display unit based on map data including road data and background data (see, for example, Patent Documents 1 and 2).
By the way, in the conventional map display apparatus, when the destination point (for example, the destination of the route guidance of the vehicle or its surrounding points) exists outside the frame of the screen of the display unit, it is displayed on the display unit. By scrolling the map, the destination point is displayed within the frame of the screen of the display unit. However, when the map displayed on the display unit is scrolled, the current position of the vehicle, which is the movement source point, falls outside the frame of the screen of the display unit, and the position between the movement source point (the current position of the vehicle) and the movement destination point The relationship may not be understood.

JP 2007-256338 A JP 2009-36881 A

  Accordingly, an object of the present invention is to display a map in a manner in which the positional relationship between the movement source point and the movement destination point can be grasped when the movement destination point exists outside the frame of the screen of the display unit. It is to provide a display device.

According to the map display device of claim 1, in the map displayed on the screen of the display unit based on the map data, the movement source area extraction unit extracts the area including the movement source point as the movement source area, and the movement destination The area extraction unit extracts an area including the movement destination point as a movement destination area. The movement destination area position changing means maintains the state where the movement source area extracted by the movement source area extraction means is displayed on the screen of the display section, while maintaining the state of the display area of the movement destination area extracted by the movement destination area extraction means. Change the position on the screen. The scale change means changes the map scale between the movement source area extracted by the movement source area extraction means and the movement destination area whose position on the screen of the display unit has been changed by the movement destination area position change means. Display on the display screen.
As a result, when the destination point exists outside the frame of the display unit screen, the destination region including the destination point is displayed so that the destination point is displayed within the frame of the display unit screen. By moving the display position, the map of the destination area including the destination point can be displayed on the same screen while the map of the source area including the source point is held. Therefore, the map can be displayed in a manner in which the positional relationship between the movement source point and the movement destination point can be grasped.

According to the map display device of the second aspect, the special movement destination point storage means stores a predetermined point on the map displayed based on the map data as the special movement destination point. The special movement destination area extraction means, when the special movement destination point stored in the special movement destination point storage means exists outside the frame of the screen of the display unit, the area including the special movement destination point as the special movement destination area Extract. Then, the destination area position changing unit maintains the state where the source area extracted by the source area extracting unit is displayed on the screen of the display unit, and the special destination area extracted by the special destination area extracting unit. The position of the special destination area on the screen of the display unit is automatically changed so that the special destination point included in is displayed within the frame of the screen of the display unit, and the scale changing means extracts the source area The scale of the map between the movement source area extracted by the means and the special movement destination area whose position on the screen of the display unit is automatically changed by the movement destination area position changing means is changed and displayed on the display part. .
Thus, if a predetermined point is stored as a special destination point, and the special destination point is outside the frame of the screen of the display unit, the special destination point is automatically displayed on the screen of the display unit. In addition, the map of the special destination area including the special destination point can be displayed on the same screen while the map of the source area including the source point is held. Therefore, the map can be displayed in a manner in which the positional relationship between the movement source point and the special movement destination point can be grasped.

According to the map display device of the third aspect, the movement destination area extracting means is configured to be able to extract a plurality of movement destination areas. The destination area position changing means displays a plurality of destination areas extracted by the destination area extracting means while maintaining the state where the source area extracted by the source area extracting means is displayed on the screen of the display unit. The position of each part on the screen can be changed. The scale change means changes the scale of the map between the movement source area extracted by the movement source area extraction means and a plurality of movement destination areas whose positions on the screen of the display unit have been changed by the movement destination area position change means. Thus, it can be displayed on the screen of the display unit.
Thereby, a map can be displayed in the aspect which can grasp | ascertain the positional relationship of a movement origin point and several destination points.

According to the map display device of claim 4, the special movement destination area extracting means is configured to be able to extract a plurality of special movement destination areas. The movement destination area position changing means maintains a state in which the movement source area extracted by the movement source area extraction means is displayed on the screen of the display unit, and a plurality of special movement destination areas extracted by the special movement destination area extraction means. The special movement destination point included in the display unit is displayed within the frame of the display unit screen so that the position of the special movement destination region on the display unit screen can be automatically changed. The scale changing means is a map between the movement source area extracted by the movement source area extraction means and a plurality of special movement destination areas whose positions on the screen of the display unit are automatically changed by the movement destination area position changing means. The scale is changed so that it can be displayed on the display unit.
Thereby, a map can be displayed in the aspect which can grasp | ascertain the positional relationship of a movement origin point and a some special movement destination point.

According to the map display device of the fifth aspect, the partial scale changing means further changes the partial scale of the map displayed on the screen of the display unit by the scale changing means changing the scale.
Thereby, it is possible to further change and display a part of the scale displayed on the map displayed on the screen of the display unit, and to display the map in a display mode more in line with the user's request. can do.

  According to the map display device of the sixth aspect, in the map displayed on the screen of the display unit based on the map data, the movement source area extracting means extracts the area including the movement source point as the movement source area, and the movement destination The area extraction unit extracts an area including the movement destination point as a movement destination area. The movement destination area position changing means maintains the state where the movement source area extracted by the movement source area extraction means is displayed on the screen of the display section, while maintaining the state of the display area of the movement destination area extracted by the movement destination area extraction means. Change the position on the screen. The scale holding area extracting unit extracts an arbitrary area existing in the map as a scale holding area. The scale change means is extracted by the movement source area extracted by the movement source area extraction means, the movement destination area whose position on the screen of the display unit has been changed by the movement destination area position change means, and the scale holding area extraction means. The scale of the map in the area excluding the scale holding area is changed and displayed on the screen of the display unit.

As a result, when the destination point exists outside the frame of the display unit screen, the destination region including the destination point is displayed so that the destination point is displayed within the frame of the display unit screen. By moving the display position, the map of the destination area including the destination point can be displayed on the same screen while the map of the source area including the source point is held. Therefore, the map can be displayed in a manner in which the positional relationship between the movement source point and the movement destination point can be grasped.
In addition, the scale of the map in the area excluding the movement source area, the movement destination area, and the scale holding area, that is, the area that is unlikely to be noticed by the user is changed, so that the movement source area, the movement destination area, and the scale holding area, The scale of the map in the area where the user is likely to pay attention is displayed without being changed. Therefore, it is not difficult to see a map in an area where the user is likely to pay attention, and the map can be displayed in a more convenient manner.

According to the map display device of claim 7, the small scale settable area extracting means is provided between the movement source area extracted by the movement source area extraction means and the movement destination area extracted by the movement destination area extraction means. An area where the scale can be set small is extracted as a small scale settable area. The scale changing means is configured such that the map scale in the small scale settable area extracted by the small scale settable area extracting means is smaller than the map scale in the area excluding the movement source area, the movement destination area, and the scale holding area. Set.
As a result, an area where the scale can be set small between the movement source area and the movement destination area, that is, an area where the user is unlikely to confirm the map displayed on the screen of the display unit. Is extracted as a small scale settable area, and the map scale in the area is set smaller. Therefore, for example, even when the distance between the movement source point and the movement destination point is a long distance, the movement of the movement from the movement point to the movement point is made possible by setting the scale of such a small scale setting area smaller. The map can be displayed in such a manner that the positional relationship with the destination point can be grasped. In addition, by providing an area for setting the map scale to be smaller as described above, the map can be displayed by effectively utilizing the display area of the screen of the limited display unit.

  According to the map display device of the eighth aspect, the special movement destination point storage means stores a predetermined point on the map displayed based on the map data as the special movement destination point. The special movement destination area extraction means, when the special movement destination point stored in the special movement destination point storage means exists outside the frame of the screen of the display unit, the area including the special movement destination point as the special movement destination area Extract. Then, the destination area position changing unit maintains the state where the source area extracted by the source area extracting unit is displayed on the screen of the display unit, and the special destination area extracted by the special destination area extracting unit. The position of the special destination area on the screen of the display unit is automatically changed so that the special destination point included in is displayed within the frame of the screen of the display unit, and the scale changing means extracts the source area A movement source area extracted by the means, a special movement destination area whose position on the screen of the display unit is automatically changed by the movement destination area position changing means, and the scale holding area extracted by the scale holding area extracting means, The scale of the map in the area excluding is changed and displayed on the display unit.

Thus, if a predetermined point is stored as a special destination point, and the special destination point is outside the frame of the screen of the display unit, the special destination point is automatically displayed on the screen of the display unit. In addition, the map of the special destination area including the special destination point can be displayed on the same screen while the map of the source area including the source point is held. Therefore, the map can be displayed in a manner in which the positional relationship between the movement source point and the special movement destination point can be grasped.
In addition, the map scale in the area that is unlikely to be noticed by the user (excluding the movement source area, the special movement destination area, and the scale holding area) is changed, and the area that is likely to be noticed by the user (movement source area) And the scale of the map in the special destination area and scale holding area) are displayed without change. Therefore, it is not difficult to see a map in an area where the user is likely to pay attention, and the map can be displayed in a more convenient manner.

  According to the map display device of the ninth aspect, the small scale settable area extracting means is provided between the movement source area extracted by the movement source area extraction means and the special movement destination area extracted by the special movement destination area extraction means. , The area where the scale can be set small is extracted as the small scale settable area. The scale changing unit is configured to make the map scale in the small scale settable area extracted by the small scale settable area extracting unit smaller than the map scale in the area excluding the movement source area, the special movement destination area, and the scale holding area. Set.

  Thereby, between the movement origin area | region and the special movement destination area | region, the area | region where a user hardly confirms the map displayed on the screen of a display part very much (area | region which can set a reduced scale) is high. Is extracted as a small scale settable area, and the map scale in the area is set smaller. Therefore, the map can be displayed in such a manner that the positional relationship between the movement source point and the special movement destination point can be grasped by setting the scale of such a small scale setting area to be smaller. In addition, the map can be displayed by effectively utilizing the display area of the screen of the limited display unit.

According to the map display device of the tenth aspect, the point extracting means extracts, as a first point, a point corresponding to the first touch position touched by the user in the map displayed on the screen of the display unit. A point corresponding to the touched second touch position is extracted as a second point. The actual distance calculation means calculates the distance between the first point and the second point extracted by the point extraction means as the actual distance. The actual distance display means displays the actual distance calculated by the actual distance calculation means on the screen of the display unit.
Thereby, in a map display device that displays a map with a reduced scale, the user touches any two points on the screen of the display unit (two points where the actual distance is to be grasped) by a simple operation. The actual distance between two points can be grasped.

According to the map display device of the eleventh aspect, the actual distance calculation means calculates the straight distance between the first point and the second point as the actual distance. According to the map display device of the twelfth aspect, the actual distance calculation means calculates the distance along the road existing between the first point and the second point as the actual distance.
That is, the actual distance in the present invention can be variously set such as a straight line distance and a distance along the road as long as it is a distance between the first point and the second point.

According to the map display device of the thirteenth aspect, when the user moves the first touch position, the point extracting means corresponds to the first touch position while following the moving first touch position. When the point is extracted as the first point and the user moves the second touch position, the point corresponding to the second touch position is determined as the second point while following the moving second touch position. It is configured to extract. The actual distance calculated by the actual distance calculation means and displayed by the actual distance display means changes in accordance with the movement of the first touch position and / or the movement of the second touch position.
Accordingly, the actual distance displayed on the display unit dynamically changes following the movement of the finger touched on the screen of the display unit by the user, and smooth according to the movement of the user's finger. The actual distance can be displayed.

  As in the map display device according to claim 14, the operation by the map display device according to claim 13 is that the user touches the first touch position and the second touch position at the same time, and the first touch position and the second touch position. It may be configured to be executable when the touched position is maintained.

The block diagram which concerns on the 1st Embodiment of this invention and shows the structure of a map display apparatus Flow chart showing control contents by control device The figure which shows the screen of the display part in the state before changing the position of a movement destination area and changing the scale ratio of a map The figure which shows the screen of the display part in the state after changing the position of a movement destination area and changing the scale ratio of a map The figure which shows an example of the display mode by a control apparatus (the 1) The figure which shows an example of the display mode by a control apparatus (the 2) The figure which shows an example of the display mode by a control apparatus (the 3) The figure which shows an example of the display mode by a control apparatus (the 4) The figure which shows an example of the display mode by a control apparatus (the 5) The figure which shows an example of the display mode by a control apparatus (the 6) The figure which shows an example of the display mode by a control apparatus (the 7) The figure which shows an example of the display mode by a control apparatus (the 8) The figure which shows an example of the display mode by a control apparatus (the 9) FIG. 10 is a diagram illustrating an example of a display mode by the control device (part 10); FIG. 11 is a diagram illustrating an example of a display mode by the control device (part 11); The figure which shows an example of the display mode by a control apparatus (the 12) The figure which shows an example of the display mode by a control apparatus (the 13) FIG. 14 is a diagram illustrating an example of a display mode by the control device (part 14); The figure which shows an example of the display mode by a control apparatus (the 15) The figure which shows an example of the display mode by a control apparatus (the 16) FIG. 1 equivalent view according to the second embodiment of the present invention. 2 equivalent diagram 3 equivalent figure 4 equivalent diagram FIG. 3 equivalent view according to the modification 4 equivalent diagram The figure which concerns on the 3rd Embodiment of this invention and shows an example of the display mode by a control apparatus (the 17) The figure which shows an example of the display mode by a control apparatus (the 18) The figure which concerns on the 4th Embodiment of this invention and shows an example of the display mode by a control apparatus (the 19) The figure which shows an example of the display mode by a control apparatus (the 20) FIG. 1 equivalent view according to the fifth embodiment of the present invention. The figure which shows an example of the operation mode of a touchscreen switch (the 1) The figure which shows an example of the operation mode of a touchscreen switch (the 2) FIG. 1 equivalent view according to the sixth embodiment of the present invention. 2 equivalent diagram 3 equivalent figure 4 equivalent diagram Diagram showing scale selection area selection screen FIG. 1 equivalent view according to the seventh embodiment of the present invention. 2 equivalent diagram 3 equivalent figure 4 equivalent diagram FIG. 3 equivalent view according to the modification 4 equivalent diagram FIG. 1 equivalent view according to the eighth embodiment of the present invention. 2 equivalent diagram 3 equivalent figure 4 equivalent diagram FIG. 1 equivalent view according to the ninth embodiment of the present invention Flow chart showing the contents of the actual distance calculation display process The figure which shows the state in which the user touched two fingers on the screen of a display part. The figure for explaining an example of the calculation method of the actual distance The figure for demonstrating an example of the calculation method and display method of an exact distance 51A is a diagram corresponding to FIG. 51 illustrating an example of a state before the user moves the finger, and FIG. 51B is a diagram corresponding to FIG. 51 illustrating an example of a state after the user has moved the finger.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a functional block diagram schematically showing a configuration of a map display device 10 provided in a car navigation system mounted on, for example, an automobile.
The map display device 10 includes a control device 11, a position detection unit 12, a map data input unit 13, an operation switch unit 14, an external memory 15, a display unit 16, a voice controller 17, a remote control sensor 18, a communication unit 19, and the like. . The control device 11 is mainly composed of a microcomputer having a CPU, ROM and RAM (not shown). The map display device 10 executes the control program in the CPU of the control device 11 so that the movement source region extraction unit 20, the movement destination region extraction unit 21, the movement destination region position change unit 22, and the scale change unit 23 are virtualized by software. Realize.

  The position detection unit 12 detects the current position of the vehicle on which the map display device 10 is mounted. The position detection unit 12 includes an orientation sensor 31, a gyro sensor 32 (gyroscope), a distance sensor 33, and a GPS receiver 34. The direction sensor 31 detects the direction of the vehicle. The gyro sensor 32 detects the rotation angle of the vehicle. The distance sensor 33 detects the travel distance of the vehicle. The GPS receiver 34 receives radio waves transmitted from GPS satellites (not shown) in order to determine the current position of the vehicle by GPS (Global Positioning System).

  The map data input unit 13 acquires map data from the map data storage unit 35. The map data stored in the map data storage unit 35 includes road data, background data, landmark data, map matching data, destination data, and traffic information formed by a plurality of nodes and links connecting the nodes. It contains various data such as table data for conversion to. The road data included in the map data is stored separately for each type of road (for example, a national road, a highway, a general road, a narrow street, etc.). This map data includes information such as the name of the place, the name of the facility, and the location of each point or facility. The map data stored in the map data storage unit 35 is read into the map data input unit 13 by a drive device (not shown). As the map data storage unit 35, for example, a large-capacity storage medium such as a DVD or a CD, or a storage medium such as a memory card or a hard disk drive is used.

  The operation switch unit 14 includes various types of switches such as a mechanical switch provided in the vicinity of the screen of the display unit 16 and a touch panel switch (in this case, a capacitive touch panel switch) provided on the screen of the display unit 16. It consists of a group of switches. The user uses each switch of the operation switch unit 14 to switch the destination of the vehicle route guidance, the screen of the display unit 16 and the display mode (for example, change of the map scale, selection of the menu screen, route search, route search) Input various commands to start guidance, correct the current position, adjust volume, etc. Thereby, the map display apparatus 10 operates according to a user's instruction.

The remote control sensor 18 transmits and receives commands and the like with the remote control 36. The remote controller 36 is provided with, for example, a lever type operation element (not shown) capable of swinging and pushing, and a plurality of operation switches (not shown). The remote control 36 transmits various command signals to the control device 11 via the remote control sensor 18 in accordance with the operation of the operation element or the operation switch by the user. The operation switch unit 14 and the remote controller 36 can cause the control device 11 to execute the same function by any operation.
The external memory 15 is configured by, for example, a removable flash memory card or a hard disk drive. The external memory 15 may be shared with, for example, a RAM or EEPROM provided in the control device 11 of the map display device 10 or the map data storage unit 35.

  The display unit 16 includes a color display such as a liquid crystal or an organic EL. The control device 11 displays a map on the screen of the display unit 16 based on the map data input from the map data input unit 13. When executing the route guidance to the destination, the control device 11 displays a route guidance screen (for example, see FIG. 3) on the screen of the display unit 16. In this case, in order to enable the vehicle to travel along the guide route, the control device 11 displays a current position mark (for example, indicated by a symbol N in FIG. 3) indicating the current position and the traveling direction of the vehicle superimposed on the road. To do. The display of the current position of the vehicle moves on the map displayed on the screen of the display unit 16 as the vehicle travels. The map displayed on the display unit 16 is scrolled according to the current position of the vehicle. At this time, the control device 11 performs map matching that matches the current position of the vehicle on the road.

  The audio controller 17 is connected to the in-vehicle speaker 37. The audio controller 17 outputs an audio output signal to the in-vehicle speaker 37 based on the audio output signal from the control device 11. The sound output from the in-vehicle speaker 37 is a sound related to route guidance, a sound related to operation explanation, a sound notifying that the anti-theft function is in operation, a talkback sound corresponding to a sound recognition result, and the like. The communication unit 19 communicates various information with, for example, an information center (not shown) via a wired or wireless communication line (not shown).

  The movement source area extraction unit 20 extracts an area including the movement source point as a movement source area in the map (including the surrounding area) displayed on the screen of the display unit 16. The movement destination area extraction unit 21 extracts, as a movement destination area, an area including a movement destination point that exists outside the frame of the screen of the display unit 16 in the map (including the surrounding area) displayed on the screen of the display unit 16. To do. The movement destination area position changing unit 22 maintains the state where the movement source area extracted by the movement source area extraction unit 20 is displayed on the screen of the display unit 16, and the movement destination area extracted by the movement destination area extraction unit 21. The position of the display unit 16 on the screen is changed. The scale change unit 23 is a map scale between the movement source region extracted by the movement source region extraction unit 20 and the movement destination region whose position on the screen of the display unit 16 has been changed by the movement destination region position change unit 22. Is displayed on the screen of the display unit 16. The control device 11 of the map display device 10 is configured to be able to execute control described later by the movement source region extraction unit 20, the movement destination region extraction unit 21, the movement destination region position change unit 22, and the scale change unit 23. .

  The map display device 10 having the above-described configuration is configured such that when the destination point (for example, the destination of the route guidance of the vehicle or its surrounding points) is outside the frame of the screen of the display unit 16, It is possible to display the map in such a manner that the positional relationship between the current position and the destination point can be grasped. Next, the control contents when displaying a map in such a manner will be described. FIG. 2 is a flowchart showing the control contents executed by the control device 11 of the map display device 10.

As shown in FIG. 3, when the route guidance map is displayed on the screen of the display unit 16 at the time of route guidance to the destination G, for example, the control device 11 is provided on the screen of the display unit 16 (step A1). It is determined whether or not a touch signal (a signal indicating that the user has touched the screen of the display unit 16) has been input from the touch panel switch, that is, whether or not the user has touched the screen of the display unit 16 with a finger (step) A2). And if the control apparatus 11 detects that the contact signal was input from the touch panel switch (step A2: YES), in the map displayed on the screen of the display part 16, the area | region containing the vehicle's current position N will be moved. While extracting as area | region As (step A3), in the map displayed on the screen of the display part 16, the area | region containing the point T where the user contacted the finger | toe is extracted as movement destination area | region Ag (step A4). Of the destination area Ag extracted by the control device 11, the part corresponding to the outside of the screen of the display unit 16 does not include the destination G in addition to the case where the destination G itself is included as shown in FIG. May include points around the destination G.
Note that the size and shape of the movement source region As and the movement destination region Ag extracted by the control device 11 can be changed as appropriate, and may be set in advance in the control program, or the user may operate the operation switch unit 14 or the remote controller. It may be set via 36 or the like.

Next, the control device 11 receives a movement signal from the touch panel switch provided on the screen of the display unit 16 (that the user has moved the finger touching the screen of the display unit 16 in the above step A2 as it is on the screen). It is determined whether or not the signal (indicated signal) has been input, that is, whether or not the finger touched on the screen by the user has moved on the screen as it is (step A5).
When the control device 11 detects that a movement signal is input from the touch panel switch (step A5: YES), the control device 11 maintains the state where the movement source area As is displayed on the screen of the display unit 16 while changing the input movement signal. Based on this, the display position of the movement destination area Ag on the screen of the display unit 16 is changed (step A6).

  Here, as shown in FIG. 3, when the destination G that is the destination is outside the frame of the screen of the display unit 16, the user selects the destination G or a surrounding point of the destination G. In order to confirm, the finger touching the screen of the display unit 16 (for example, the point T shown in FIG. 3) is moved so as to be drawn toward the center of the screen. Therefore, the control device 11 moves the destination area Ag so as to be drawn toward the center of the screen of the display unit 16 according to the movement of the finger by such a user, and as shown in FIG. The surrounding points of the destination G are displayed in the frame of the screen of the display unit 16.

  Next, the control device 11 changes the scale of the map between the movement source area As and the movement destination area Ag whose position on the screen of the display unit 16 has been changed, and displays it on the screen of the display unit 16 ( Step A7). And the control apparatus 11 hold | maintains the state which displayed the map which changed the scale between the movement origin area | region As and the movement destination area | region Ag on the screen of the display part 16 according to predetermined conditions (step A8). Various conditions can be set as the predetermined condition. For example, it can be set as a predetermined condition that the input of the operation signal from the touch panel switch is not detected, that is, that the user lifts the finger from the touch panel switch. In addition, it is determined that a different operation signal is input from the touch panel switch, that is, a finger different from a finger that the user has contacted to draw the destination area Ag toward the center of the screen is brought into contact with the touch panel switch. You may set as conditions of.

  Various modes can be adopted as the display mode in step A7. Hereinafter, an example of this display mode will be described with reference to FIGS. The numerical values shown in FIG. 5 to FIG. 19 indicate the map scale ratio (map distortion amount). Moreover, the scale ratio shown in each figure is only an example, and can be changed as appropriate.

  In the display mode shown in FIG. 5, the control device 11 divides the map between the movement source area As and the movement destination area Ag into a plurality of sections, and the scale of each section is changed from the movement destination area Ag to the movement source area As. Set smaller in steps toward. In the display mode shown in FIG. 6, the control device 11 divides the frame of the screen of the display unit 16 into a plurality of rectangular sections, and the scale of each section is changed from the movement destination area Ag to the movement source area As. Set smaller step by step. In addition, the control device 11 also sets the size of each section to be smaller stepwise from the movement destination area Ag toward the movement source area As. In this case, the scale in each section is set to be different in the vertical direction (vertical direction in FIG. 6) and the horizontal direction (horizontal direction in FIG. 6) of the screen of the display unit 16. In other words, the scales of the sections arranged in the horizontal direction of the screen of the display unit 16 are the same in the vertical direction, but the scales in the horizontal direction are stepwise as the section is closer to the movement source area As (in the right direction in FIG. 6). Is set to a small value. Further, the scales of the sections arranged in the vertical direction of the screen of the display unit 16 are the same in the horizontal direction, but the scales in the vertical direction are stepwise as the section is closer to the movement source area As (downward in FIG. 6). Is set to a small value. In the display mode shown in FIG. 7, the control device 11 continuously (linearly) reduces the scale of the map between the movement source area As and the movement destination area Ag from the movement destination area Ag to the movement source area As. Set to a small value. According to these display modes, in particular, the destination G and the map in the destination area Ag showing the periphery of the destination G can be displayed in detail. In particular, according to the display mode shown in FIG. 6, the map can be displayed in a mode in which a planar map is folded.

  In the display mode shown in FIG. 8, the control device 11 divides the map between the movement source area As and the movement destination area Ag into a plurality of sections, and the scale of each section is changed from the movement destination area Ag to the movement source area As. Set gradually larger toward In the display mode shown in FIG. 9, the control device 11 divides the frame of the screen of the display unit 16 into a plurality of rectangular sections, and the scale of each section is changed from the movement destination area Ag to the movement source area As. Increase gradually step by step. Further, the control device 11 also sets the size of each section to be larger in steps from the movement destination area Ag to the movement source area As. In this case, the scale in each section is set to be different in the vertical direction (vertical direction in FIG. 9) and horizontal direction (horizontal direction in FIG. 9) of the screen of the display unit 16. That is, the scales of the sections arranged in the horizontal direction of the screen of the display unit 16 are the same in the vertical direction, but the scales in the horizontal direction are stepwise as the section is closer to the movement source region As (rightward in FIG. 9). Is set to be large. Further, the scales of the sections arranged in the vertical direction of the screen of the display unit 16 are the same in the horizontal direction, but the scales in the vertical direction are stepwise as the section is closer to the movement source region As (downward in FIG. 9). Is set to be large. In the display mode shown in FIG. 10, the control device 11 continuously (linearly) reduces the scale of the map between the movement source area As and the movement destination area Ag from the movement destination area Ag to the movement source area As. Set to a large value. As shown in FIG. 11, the size of the section on the destination area Ag side where the scale is set small (upper left in FIG. 11) is set narrow, and the source area As side where the scale is set large (FIG. 11). 11, the size of the lower right section) may be set wide. According to these display modes, in particular, the current position N of the vehicle and the map in the movement source area As showing the periphery of the current position N can be displayed in detail. In particular, according to the display mode shown in FIG. 9, it is possible to display the map in a mode in which a planar map is folded.

  In the display mode shown in FIG. 12, the control device 11 divides the map between the movement source area As and the movement destination area Ag into a plurality of sections, and the scale of each section is changed from the movement destination area Ag to a predetermined part of the screen. In this case, the value is set to be small in steps over the central portion, and is set to be large in steps from the predetermined portion (central portion) of the screen to the movement source area As. In the display mode shown in FIG. 13, the control device 11 divides the frame of the screen of the display unit 16 into a plurality of sections by dividing lines smoothly, and the scale of each section is changed from the destination area Ag to the screen. It is set to be small in steps over a predetermined portion (in this case, the central portion), and is set to be large in steps from a predetermined portion (central portion) of the screen to the movement source area As. In the display mode shown in FIG. 14, the control device 11 applies the scale of the map between the movement source area As and the movement destination area Ag from the movement destination area Ag to a predetermined part (in this case, the center) of the screen. Is set small continuously (linearly), and is set large continuously (linearly) from a predetermined portion (center portion) of the screen to the movement source region As. As shown in FIG. 15, the movement source area As and its peripheral part (lower right part in FIG. 15) set with a large scale, and the movement destination area Ag and its peripheral part (shown in FIG. 15) with a large scale set. 15 may be provided with a section divided by a dividing line that bends smoothly instead of a rectangular section. According to these display modes, both the map in the movement destination area Ag and the map in the movement source area As can be displayed in detail. In particular, according to the display modes shown in FIGS. 13 and 15, it is possible to display the map in a three-dimensional manner in which a part of the planar map (in this case, the center) is dented. It is.

  In the display mode shown in FIG. 16, the control device 11 divides the map between the movement source area As and the movement destination area Ag into a plurality of sections, and the scale of each section is changed from the movement destination area Ag to a predetermined part of the screen. In this case, it is set to increase stepwise from the central portion, and is set to decrease stepwise from a predetermined portion (center portion) of the screen to the movement source area As. In the display mode shown in FIG. 17, the control device 11 divides the frame of the screen of the display unit 16 into a plurality of sections by dividing lines smoothly, and the scale of each section is changed from the destination area Ag to the screen. The predetermined value (in this case, the central part) is set to be larger in steps, and the predetermined part (central part) of the screen is set to be smaller in steps from the movement source area As. Further, in the display mode shown in FIG. 18, the control device 11 applies the scale of the map between the movement source area As and the movement destination area Ag from the movement destination area Ag to a predetermined part (in this case, the center) of the screen. Is set large continuously (linearly), and small continuously (linearly) from a predetermined portion (center portion) of the screen to the movement source area As. As shown in FIG. 19, the movement source area As and its peripheral part (lower right part in FIG. 19) whose scale is set small, and the movement destination area Ag and its peripheral part (FIG. 19) whose scale is set small. In FIG. 19, the upper left part) may be provided with a section divided by a dividing line that bends smoothly instead of a rectangular section. According to these display modes, a map between the movement source area As and the movement destination area Ag can be displayed in detail. For example, a guide route from the current position N of the vehicle to the destination G or the guide route The surrounding information can be obtained in detail. In particular, according to the display modes shown in FIGS. 17 and 19, it is possible to display the map in a three-dimensional manner in which a part of the planar map (in this case, the central portion) is inflated. .

  In the display mode illustrated in FIG. 20, the control device 11 superimposes a plurality of grid lines g on a map in which the scale between the movement source area As and the movement destination area Ag displayed on the screen of the display unit 16 is changed. indicate. The control device 11 sets the interval of these grid lines g according to the scale of the changed map. According to such a display mode, the scale ratio (distortion amount of each part) of each part of the map displayed on the screen of the display unit 16 can be easily grasped.

  As described above, according to the present embodiment, when the destination G that is the destination is outside the frame of the screen of the display unit 16, the destination G or the periphery of the destination G is By moving the display position of the destination area Ag including the destination G so as to be displayed within the frame of the screen of the display unit 16, the movement source area As including the current position N of the vehicle that is the movement source point is displayed. While holding the map, a map of the destination area Ag including the destination G, which is the destination point, can be displayed on the same screen. Therefore, the map can be displayed in such a manner that the positional relationship between the current position N (movement source point) and the destination G (movement destination point) of the vehicle can be grasped.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. This embodiment is different from the above-described first embodiment in the configuration of the map display device 10 and the content of control by the control device 11. Only the differences from the first embodiment will be described below.
As shown in FIG. 21, in this embodiment, the map display device 10 further includes a database 41 (corresponding to special movement destination point storage means) that stores special movement destination points. In this case, in this database 41, various stores (fast food stores, cafes, restaurants, convenience stores, etc.) are stored as special destinations. In addition, the control device 11 is, for example, a store that is set as the destination G of the vehicle route guidance, a store that exists at a point where the vehicle stops for a predetermined time (at least longer than the signal waiting time), and the user operates the operation switch unit. 14 stores stores input as favorite stores via the remote controller 36 or the remote controller 36 in the database 41.

Further, the map display device 10 executes a control program in the CPU of the control device 11, so that the special destination area extraction unit 42, which replaces the destination area extraction unit 21 shown in the first embodiment described above, by software. Realize virtually.
The special movement destination area extraction unit 42 extracts the area including the special movement destination point as the special movement destination area when the special movement destination point stored in the database 41 exists outside the frame of the screen of the display unit 16. . In this embodiment, the movement destination area position changing unit 22 maintains the state where the movement source area extracted by the movement source area extraction unit 20 is displayed on the screen of the display unit 16, while the special movement destination area extraction unit. The position of the special destination area on the screen of the display unit 16 is automatically changed so that the special destination point included in the special destination area extracted by 42 is displayed within the frame of the screen of the display unit 16. To do. The scale changing unit 23 includes a movement source region extracted by the movement source region extraction unit 20 and a special movement destination region whose position on the screen of the display unit 16 is automatically changed by the movement destination region position changing unit 22. The scale of the map in between is changed and displayed on the display unit 16. The control device 11 of the map display device 10 is controlled by the above-described movement source region extraction unit 20, movement destination region position change unit 22, scale change unit 23, database 41, and special movement destination region extraction unit 42 described later. Is configured to run.

Next, the contents of control executed by the control device 11 in the present embodiment will be described. FIG. 22 is a flowchart showing the control contents executed by the control device 11 of the map display device 10.
In the present embodiment, as shown in FIG. 23, the control device 11 displays a map for route guidance on the screen of the display unit 16 at the time of route guidance to the destination G, for example, and a part of the screen (in this case) The store group list display bar 43 is displayed at the right end) (step B1). Note that the control device 11 stores a group of stores (in this case, the store groups A to A) in which various stores stored in the database 41 are grouped according to predetermined items (for example, a store name, a store name, and a type of products handled). E) is created. And the control apparatus 11 displays each grouped store group on the store group list display bar 43 as a button which can be selected by contact operation (touch operation) or a press operation, for example.

Next, the control device 11 searches for the location on the map of the store stored in the database 41 (position where the store exists) based on the map data (step B2).
Next, the control device 11 determines whether any one of the store groups displayed on the store group list display bar 43 has been selected (step B3). The control device 11 identifies the store group selected in the store group list display bar 43 based on a selection signal (a signal indicating that the user has selected a button corresponding to the store group) input from the touch panel switch. To do.

  When the control device 11 detects the input of the selection signal (step B3: YES), the current position of the vehicle among the store groups selected in the store group list display bar 43 based on the location of each store searched in step B2. It is determined whether or not the store closest to N is outside the frame of the screen currently displayed on the display unit 16 (step B4).

  When the control device 11 determines that the store closest to the current position N of the vehicle (in this case, the store a included in the store group A) exists outside the frame of the screen (step B4: YES), the display unit 16 In the map displayed on the screen, the area including the current position N of the vehicle is extracted as the movement source area As (step B5), and the map displayed on the screen of the display unit 16 is the most from the current position N of the vehicle. An area including the store a existing at a close position is extracted as a special movement destination area Agg (step B6). Note that the size and shape of the movement source area As and the special movement destination area Agg extracted by the control device 11 can be appropriately changed as in the first embodiment.

  Next, the control device 11 displays the store a included in the special destination area Agg within the frame of the screen of the display unit 16 while maintaining the state where the movement source area As is displayed on the screen of the display unit 16. As described above, the display position of the special movement destination area Agg on the screen of the display unit 16 is automatically changed (step B7).

  Here, as shown in FIG. 23, when the store a which is the special destination point exists outside the frame of the screen of the display unit 16, the user can check the store a or the surrounding points of the store a. Next, the control device 11 moves the special destination area Agg including the store a so as to be drawn toward the center of the screen of the display unit 16, and displays the store a and the surrounding points of the store a as shown in FIG. It is displayed in the frame of the screen of the unit 16.

  Next, the control apparatus 11 changes the scale of the map between the movement origin area | region As and the special movement destination area | region Agg where the position on the screen of the display part 16 was changed, and displays it on the screen of the display part 16. FIG. (Step B8). And the control apparatus 11 hold | maintains the state which displayed the map which changed the reduced scale between movement origin area | region As and special movement destination area | region Agg on the screen of the display part 16 (step B9). As the display mode in step B8, various modes can be adopted as in the first embodiment.

  Note that the control device 11 determines that the store that is closest to the current position N of the vehicle does not exist outside the frame of the screen, that is, the store that is closest to the current position N of the vehicle is on the screen. If it is determined that the frame exists (step B4: NO), this control is terminated. That is, the control device 11 displays the store as it is on the screen of the display unit 16 based on the map data without changing the display position of the store on the screen of the display unit 16 or the scale ratio of the map.

  As described above, according to the present embodiment, if a store that is a predetermined point is stored in the database 41 as a special destination point, the store or the periphery of the store is outside the screen of the display unit 16. If it exists, the store or the vicinity of the store is automatically displayed within the frame of the screen of the display unit 16, and the source region As including the current position N of the vehicle that is the source location The map of the special destination area Agg including the store can be displayed on the same screen while the map is held. Therefore, the map can be displayed in such a manner that the positional relationship between the current position N (movement source point) of the vehicle and the store (special movement destination point) can be grasped.

  In the present embodiment, by extracting, as the special movement destination area Agg, an area including a shop that is present at a position closest to the current position N of the vehicle among the shops included in the shop group selected by the user, for example, A store that is located slightly off the screen frame is drawn into the screen frame and displayed. Moreover, the map is displayed in such a manner that the positional relationship between the store and the current position N of the vehicle can be easily grasped. Therefore, the user can reach the store he / she wants to go in the shortest required time and the shortest travel distance.

  In the present embodiment, the control device 11 may store various stores in the database 41 together with the number of times the user has actually visited the store. In the store group list display bar 43, it is preferable that the store groups including stores with a large number of times the user actually stops are arranged and displayed at the top. The number of times of stopping at each store is, for example, the number of times the store is set as the route guidance destination G, the number of times the vehicle stops at the store for a predetermined time (at least longer than the signal waiting time), and the user It can be specified based on the number of times of input as a favorite store via the operation switch unit 14 or the remote controller 36.

  Moreover, the control apparatus 11 does not extract the area | region containing the shop which exists in the position nearest from the current position N of the vehicle among the shops included in the shop group selected by the user as the special movement destination area Agg, for example, the user An area including stores that exist in the traveling direction of the guide route among the stores included in the store group selected by may be configured to be extracted as the special destination area Agg.

  In addition, in the database 41, for example, points that require attention when a vehicle passes (a sharp curve, a point where the road width narrows, a point where the speed limit changes, a point where accidents frequently occur, a point under construction, etc.) are special destination points. May be stored. In this case, for example, as illustrated in FIG. 25, when the sharp curve C exists outside the frame of the screen displayed on the display unit 16, the control device 11 sets the region including the sharp curve C as a special destination area Agg. Extract as Then, as shown in FIG. 26, the control device 11 maintains the state where the movement source area As including the current position N of the vehicle is displayed on the screen of the display unit 16, and the sharp curve included in the special movement destination area Agg. The display position of the special movement destination area Agg on the screen of the display unit 16 is automatically moved so that C is displayed within the frame of the screen of the display unit 16. And the control apparatus 11 changes the scale of the map between the movement origin area | region As and the special movement destination area | region Agg where the position on the screen of the display part 16 was changed, and displays it on the screen of the display part 16. FIG. In this case, the control device 11 visually displays a warning (lighting display or blinking display) on the sharp curve C portion, displays a text box indicating the warning content on the sharp curve C portion, or displays the in-vehicle speaker 37. It is preferable to use a configuration that uses an auditory warning.

  Moreover, various points and areas can be set as the special destination points. For example, the control device 11 acquires weather information from an information center (not shown) via the communication unit 19, and based on the weather information, a region having a bad weather condition (for example, a region of heavy rain or strong wind) is a special destination region. The special destination area Agg is automatically extracted within the frame of the screen of the display unit 16 while being extracted as Agg and maintaining the state where the source region As including the current position N of the vehicle is displayed on the screen of the display unit 16. You may make it move. Also in this case, the control device 11 changes the scale of the map between the movement source area As including the current position N of the vehicle and the special movement destination area Agg including the area where the weather condition is poor, and Display on the screen.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. In the above-described embodiment, the embodiment has been described in which the scale of the map between two regions (points) is changed and displayed. In the present embodiment, the map scale between two or more regions (points) can be changed and displayed.
That is, in the present embodiment, the movement destination area extraction unit 21 is configured to be able to extract a plurality of movement destination areas. The movement destination area position changing unit 22 maintains a state where the movement source area extracted by the movement source area extraction unit 20 is displayed on the screen of the display unit 16, and a plurality of movements extracted by the movement destination area extraction unit 21. The position of the display area 16 on the screen of the previous area can be changed. The scale changing unit 23 is a map between the movement source region extracted by the movement source region extraction unit 20 and a plurality of movement destination regions whose positions on the screen of the display unit 16 are changed by the movement destination region position changing unit 22. The scale is changed so that it can be displayed on the screen of the display unit 16.

  Next, a display mode (control content) by the control device 11 in the present embodiment will be described with reference to FIGS. 27 and 28. FIG. In the display mode shown in FIG. 27, the control device 11 extracts an area including the point T1 where the user has touched the finger as a movement destination area Ag1 in the map displayed on the screen of the display unit 16, and the movement destination area Ag1 is moved so as to be drawn toward the center of the screen of the display unit 16 according to the movement of the finger by the user. Further, the control device 11 extracts an area including the point T2 where the user has touched the finger as a movement destination area Ag2 in the map displayed on the screen of the display unit 16, and the movement destination area Ag2 is extracted by the user's finger. According to the movement, the display unit 16 is moved so as to be drawn toward the center of the screen. FIG. 27 shows a state after the display positions of the movement destination areas Ag1, Ag2 are moved to the center side of the screen.

  Next, the control device 11 changes the scale of the map between the movement source area As and the two movement destination areas Ag1 and Ag2 whose positions on the screen of the display unit 16 have been changed, and displays the screen of the display unit 16. To display. In this case, the control device 11 divides the map between the movement source area As and the two movement destination areas Ag1 and Ag2 into a plurality of sections by smoothly turning dividing lines, and sets the scale of each section to the movement source area As. In addition, each of the two movement destination areas Ag1 and Ag2 is set to be small in steps from a predetermined part (in this case, the central part) of the screen. The control device 11 is configured to increase the scale of each section in a stepwise manner from each of the movement source area As and the two movement destination areas Ag1 and Ag2 to a predetermined portion (in this case, the central portion) of the screen. May be. As shown in FIG. 28, the control device 11 determines the scale of the map between the movement source area As and the two movement destination areas Ag1 and Ag2 in the movement source area As and the two movement destination areas Ag1 and Ag2. You may comprise so that it may set small continuously (linearly) from each to the predetermined part (in this case, center part) of a screen. Further, the control device 11 may be configured to increase continuously (linearly) from each of the movement source area As and the two movement destination areas Ag1 and Ag2 to a predetermined portion (in this case, the central portion) of the screen. Good.

  As described above, according to this embodiment, a plurality of destination areas are extracted, and the scale of the map between the source area and the plurality of destination areas is changed and displayed on the screen of the display unit 16. can do. Thereby, a map can be displayed in the aspect which can grasp | ascertain the positional relationship of a movement origin point and several destination points. Therefore, for example, when it is desired to display a map in a manner in which the positional relationship between the current position N (movement point) of the vehicle and a plurality of destinations (movement points) can be grasped, or the current position N (movement point) of the vehicle This is effective when it is desired to display a map in such a manner that the positional relationship between the destination and the destination (first destination point) and the waypoint (second destination point) existing up to the destination can be grasped.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIGS. 29 and 30. FIG. This embodiment is also an embodiment in which the scale of the map between two or more regions (points) can be changed and displayed.
That is, in this embodiment, the special movement destination area extraction unit 42 is configured to be able to extract a plurality of special movement destination areas. The movement destination area position changing unit 22 maintains a state where the movement source area extracted by the movement source area extraction unit 20 is displayed on the screen of the display unit 16, and a plurality of pieces extracted by the special movement destination area extraction unit 42. The position of the special destination area on the screen of the display unit 16 can be automatically changed so that the special destination point included in the special destination area is displayed in the frame of the screen of the display unit 16. Has been. The scale change unit 23 includes a movement source region extracted by the movement source region extraction unit 20 and a plurality of special movement destination regions whose positions on the screen of the display unit 16 are automatically changed by the movement destination region position change unit 22. The scale of the map in between can be changed and displayed on the screen of the display unit 16.

  Next, a display mode (control content) by the control device 11 in the present embodiment will be described with reference to FIGS. 29 and 30. FIG. In the display mode shown in FIG. 29, the control device 11 includes a store (in this case, included in the store group A) that is closest to the current position N of the vehicle among the store groups selected in the store group list display bar 43. When it is determined that the store a1) is outside the frame of the screen, the area including the current position N of the vehicle is extracted as the movement source area As in the map displayed on the screen of the display unit 16 and displayed on the screen of the display unit 16 In the map obtained, an area including the store a1 existing closest to the current position N of the vehicle is extracted as a special destination area Agg1. Further, the control device 11 is present at the second closest position from the current position N of the vehicle (the position closest to the current position N of the vehicle except for the store a1) on the map displayed on the screen of the display unit 16. An area including the store a2 is extracted as a special destination area Agg2. Note that the control device 11 does not extract the special destination area based on the distance between the current position N of the vehicle and the store, but includes, for example, stores that exist along the guide route during route guidance. An area may be extracted as a special destination area.

  Next, the control device 11 displays the store a1 included in the special destination area Agg1 within the frame of the screen of the display unit 16 while maintaining the state where the movement source area As is displayed on the screen of the display unit 16. As described above, the display position of the special movement destination area Agg1 on the screen of the display unit 16 is automatically changed, and the store a2 included in the special movement destination area Agg2 is displayed in the frame of the screen of the display unit 16. The display position of the special movement destination area Agg2 on the screen of the display unit 16 is automatically changed. FIG. 29 shows a state after the display position of the special movement destination areas Agg1, Agg2 is changed to the center side of the screen.

  Next, the control device 11 changes the scale of the map between the movement source area As and the two special movement destination areas Agg1 and Agg2 whose positions on the screen of the display unit 16 have been changed. Display on the screen. In this case, the control device 11 divides the map between the movement source area As and the two special movement destination areas Agg1 and Agg2 into a plurality of sections by smoothly turning dividing lines, and sets the scale of each section to the movement source area. The size is set to be smaller stepwise from As and each of the two special destination areas Agg1 and Agg2 to a predetermined part of the screen (in this case, the central part). Note that the control device 11 sets the scale of each section to be increased stepwise from each of the movement source area As and the two special movement destination areas Agg1 and Agg2 to a predetermined portion (in this case, the central portion) of the screen. It may be configured. Further, as shown in FIG. 30, the control device 11 determines the scale of the map between the movement source area As and the two special movement destination areas Agg1, Agg2, as the movement source area As and the two special movement destination areas Agg1, You may comprise so that it may set small continuously (linearly) from each of Agg2 to the predetermined part (in this case, center part) of a screen. Further, the control device 11 is configured so as to be set large continuously (linearly) from each of the movement source area As and the two special movement destination areas Agg1, Agg2 to a predetermined portion (in this case, the central portion) of the screen. Also good.

  As described above, according to the present embodiment, the screen of the display unit 16 is extracted by extracting a plurality of special destination areas and changing the scale of the map between the source area and the plurality of special destination areas. Can be displayed. Thereby, a map can be displayed in the aspect which can grasp | ascertain the positional relationship of a movement origin point and a some special movement destination point.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described with reference to FIGS. This embodiment is different from the above-described embodiment in the configuration of the map display device 10 and the control content by the control device 11. Only differences from the above embodiment will be described below.
In the present embodiment, as shown in FIG. 31, the map display device 10 further realizes the partial scale changing unit 51 by software by executing a control program in the CPU of the control device 11.

  The partial scale changing unit 51 changes the scale of a part of the map displayed on the screen of the display unit 16 by the scale changing unit 23 changing the scale. That is, the control device 11 further includes the partial scale changing unit 51, so that the scale of a part of the map displayed by changing the scale on the screen of the display unit 16 is further displayed based on the operation signal from the touch panel switch. It is configured to be changeable. For example, as shown in FIG. 32, when the user touches the screen of the display unit 16 (the screen on which the map whose scale has been changed) is touched and moves the two fingers to open. Based on the operation signal, the control device 11 further sets the scale of the map in the part where the two fingers are in contact and the peripheral part thereof, and further enlarges the part. And display. Also, for example, as shown in FIG. 33, the user brings two fingers into contact with the screen of the display unit 16 (the screen on which the map whose scale has been changed is displayed), and moves the two fingers to close. In the case (see the arrow shown in FIG. 33), the control device 11 sets the map scale at the part where the two fingers are in contact and the peripheral part thereof to be smaller based on the operation signal. Further reduced and displayed.

  According to the present embodiment, a part of the scale can be further changed and displayed on the map displayed with the scale changed on the screen of the display unit 16. That is, it is possible to multiplex map scale change processing (deformation processing). As a result, it is possible to enlarge only the area to be confirmed in more detail from the map once displayed, or to reduce only the area that is not particularly necessary, and to display the map in a display mode more in line with the user's request. Can be displayed.

(Sixth embodiment)
The sixth embodiment of the present invention will be described below with reference to FIGS. The present embodiment is different from the above-described embodiments in the configuration of the map display device 10 and the content of control by the control device 11. Only differences from the above-described embodiments will be described below.
As shown in FIG. 34, in this embodiment, the map display device 10 further executes a control program in the CPU of the control device 11, thereby further reducing the scale holding region extracting unit 24 and the scale holding region setting unit 25. Virtually realized by software.

  The scale holding area extracting unit 24 extracts an arbitrary point or area existing in the map displayed based on the map data as the scale holding area. The scale change unit 23 includes a movement source region extracted by the movement source region extraction unit 20, a movement destination region whose position on the screen of the display unit 16 has been changed by the movement destination region position change unit 22, and a scale holding region extraction unit. The scale of the map in the area excluding the scale holding area extracted by 24 is changed and displayed on the screen of the display unit 16. The control device 11 of the map display device 10 includes the above-described movement source region extraction unit 20, movement destination region extraction unit 21, movement destination region position change unit 22, and these scale change unit 23 and scale holding region extraction unit 24. It is comprised so that control mentioned later can be performed.

  The scale holding area setting unit 25 can display, for example, a scale holding area selection screen shown in FIG. 38 on the screen of the display unit 16 when executing a setting mode for setting a spot or area to be extracted as a scale holding area. The scale holding area selection screen includes an arbitrary point or area (for example, various stores such as fast food stores and convenience stores, scenic spots, landscapes, etc.) on the map displayed on the screen of the display unit 16 based on the map data. Areas, museums, gas stations, accident-prone points, interchanges, service areas, parking areas, user-registered points and facilities, urban areas with complicated roads, intersections with complicated roads, etc.) Displayed as selectable. The user can freely select a point or area displayed on the scale holding area selection screen and set it as a scale holding area Aa (see FIG. 36) described later. It should be noted that the points and areas that are displayed so as to be selectable on the scale holding area selection screen can be set by appropriately changing various points and areas such as points and areas to be noted when the vehicle travels.

  The map display device 10 having the above-described configuration is configured such that when the destination point (for example, the destination of the route guidance of the vehicle or its surrounding points) is outside the frame of the screen of the display unit 16, It is possible to display the map in such a manner that the positional relationship between the current position and the destination point can be grasped. Next, the control contents when displaying a map in such a manner will be described. FIG. 35 is a flowchart showing the control contents executed by the control device 11 of the map display device 10.

  As shown in FIG. 36, for example, when the route guidance map is displayed on the screen of the display unit 16 at the time of route guidance to the destination G (step C1), the control device 11 is provided on the screen of the display unit 16. It is determined whether or not a touch signal (a signal indicating that the user has touched the screen of the display unit 16) has been input from the touch panel switch, that is, whether or not the user has touched the screen of the display unit 16 with a finger (step) C2). And if the control apparatus 11 detects that the contact signal was input from the touch panel switch (step C2: YES), the area | region containing the vehicle's current position N will be moved in the map displayed on the screen of the display part 16. While extracting as area | region As (step C3), in the map displayed on the screen of the display part 16, the area | region containing the point T where the user contacted the finger | toe is extracted as movement destination area | region Ag (step C4). In the destination area Ag extracted by the control device 11, the part corresponding to the outside of the screen of the display unit 16 does not include the destination G in addition to the case where the destination G itself is included as shown in FIG. 36. May include points around the destination G.

  Further, the control device 11 displays an area including a point selected by the user via the scale holding area selection screen (see FIG. 38) on the map displayed based on the map data, or the user selects the scale holding area selection screen. The area selected via the key is extracted as the scale holding area Aa (step C5). In this case, the control device 11 extracts an area including the urban area U as the reduced scale holding area Aa. The sizes and shapes of the movement source area As, the movement destination area Ag, and the scale holding area Aa extracted by the control device 11 can be changed as appropriate, and may be set in advance in the control program, or may be set by the user. The setting may be made via the operation switch unit 14 or the remote controller 36.

Next, the control device 11 receives a movement signal from the touch panel switch provided on the screen of the display unit 16 (that the user has moved the finger touching the screen of the display unit 16 in the above-described step C2 on the screen as it is. It is determined whether or not the signal (indicated signal) has been input, that is, whether or not the finger touched by the user has moved on the screen as it is (step C6).
When the control device 11 detects that a movement signal has been input from the touch panel switch (step C6: YES), the control device 11 maintains the state where the movement source area As is displayed on the screen of the display unit 16 while changing the input movement signal. Based on this, the display position of the movement destination area Ag on the screen of the display unit 16 is changed (step C7).

  Here, as shown in FIG. 36, when the destination G as the destination point is outside the frame of the screen of the display unit 16, the user selects the destination G or a peripheral point of the destination G. In order to confirm, the finger touching the screen of the display unit 16 (for example, the point T shown in FIG. 36) is moved so as to be drawn toward the center of the screen. Accordingly, the control device 11 moves the destination area Ag so as to be drawn toward the center of the screen of the display unit 16 according to the movement of the finger by such a user, and as shown in FIG. The surrounding points of the destination G are displayed in the frame of the screen of the display unit 16. As the movement destination area Ag moves, the display position of the scale holding area Aa on the screen of the display unit 16 also moves to the movement source area As in this case.

  Next, the control device 11 changes the movement source area As, the movement destination area Ag whose position on the screen of the display unit 16 is changed, and the position of the display unit 16 on the screen according to the movement of the movement destination area Ag. The scale of the map in the area excluding the reduced scale holding area Aa is changed and displayed on the screen of the display unit 16 (step C8). In this case, the control device 11 does not change the scale of the map in the movement source area As, the movement destination area Ag, and the scale holding area Aa. As the display mode (scale mode) in step C8, various modes can be adopted. For example, the map scale in the area excluding the movement source area As, the movement destination area Ag, and the scale holding area Aa is used. You may set small in steps, and may set small continuously (linearly).

  And the control apparatus 11 hold | maintains the state which displayed the map which changed the scale of the area | region except the movement origin area | region As, movement destination area | region Ag, and scale holding area | region Aa on the screen of the display part 16 according to predetermined conditions. (Step C9). Various conditions can be set as the predetermined condition. For example, it can be set as a predetermined condition that the input of the operation signal from the touch panel switch is not detected, that is, that the user lifts the finger from the touch panel switch. In addition, it is determined that a different operation signal is input from the touch panel switch, that is, a finger different from a finger that the user has contacted to draw the destination area Ag toward the center of the screen is brought into contact with the touch panel switch. You may set as conditions of.

  As described above, according to the present embodiment, when the destination G that is the destination is outside the frame of the screen of the display unit 16, the destination G or the periphery of the destination G is By moving the display position of the destination area Ag including the destination G so as to be displayed within the frame of the screen of the display unit 16, the movement source area As including the current position N of the vehicle that is the movement source point is displayed. While holding the map, a map of the destination area Ag including the destination G, which is the destination point, can be displayed on the same screen. Therefore, the map can be displayed in such a manner that the positional relationship between the current position N (movement source point) and the destination G (movement destination point) of the vehicle can be grasped.

  Further, the scale of the map in the area excluding the movement source area As, the movement destination area Ag, and the scale holding area Aa, that is, the area that is unlikely to be noticed by the user is changed, and the movement source area As and the movement destination area Ag are changed. The scale holding area Aa, that is, the scale of the map in the area where the user is likely to pay attention is displayed without being changed. Therefore, the map in the region where the user is likely to pay attention is not distorted and difficult to see, and the map can be displayed in a more convenient manner.

(Seventh embodiment)
Next, a seventh embodiment of the present invention will be described with reference to FIGS. This embodiment is different from the above-described sixth embodiment in the configuration of the map display device 10 and the content of control by the control device 11. Only differences from the sixth embodiment will be described below.
As shown in FIG. 39, in this embodiment, the map display apparatus 10 includes the database 41 and the special movement destination area extraction unit 42 shown in the second embodiment.
The scale change unit 23 includes a movement source region extracted by the movement source region extraction unit 20, a special movement destination region whose position on the screen of the display unit 16 is automatically changed by the movement destination region position change unit 22, and a scale. The scale of the map in the area excluding the scale holding area extracted by the holding area extracting unit 24 is changed and displayed on the display unit 16. The control device 11 of the map display device 10 includes a movement source region extraction unit 20, a movement destination region position change unit 22, a scale holding region extraction unit 24, a scale change unit 23, a database 41, and a special movement destination region extraction unit. 42 is configured to be able to execute control to be described later.

Next, the contents of control executed by the control device 11 in the present embodiment will be described. FIG. 40 is a flowchart showing the control contents executed by the control device 11 of the map display device 10.
In the present embodiment, as shown in FIG. 41, the control device 11 displays a map for route guidance on the screen of the display unit 16 at the time of route guidance to the destination G, for example, and a part of the screen (in this case) The store group list display bar 43 is displayed on the right end) (step D1). Note that the control device 11 stores a group of stores (in this case, the store groups A to A) in which various stores stored in the database 41 are grouped according to predetermined items (for example, a store name, a store name, and a type of products handled). E) is created. And the control apparatus 11 displays each grouped store group on the store group list display bar 43 as a button which can be selected by contact operation (touch operation) or a press operation, for example.

Next, the control device 11 searches for the location on the map of the store stored in the database 41 (position where the store exists) based on the map data (step D2).
Next, the control device 11 determines whether any one of the store groups displayed on the store group list display bar 43 has been selected (step D3). The control device 11 identifies the store group selected in the store group list display bar 43 based on a selection signal (a signal indicating that the user has selected a button corresponding to the store group) input from the touch panel switch. To do.

  When the control device 11 detects the input of the selection signal (step D3: YES), the current position of the vehicle among the store group selected in the store group list display bar 43 based on the location of each store searched in step D2. It is determined whether or not the store closest to N is outside the frame of the screen currently displayed on the display unit 16 (step D4).

  When the control device 11 determines that the store closest to the current position N of the vehicle (in this case, the store a included in the store group A) is outside the frame of the screen (step D4: YES), the display unit 16 In the map displayed on the screen, an area including the current position N of the vehicle is extracted as the movement source area As (step D5), and the map displayed on the screen of the display unit 16 is the most from the current position N of the vehicle. An area including the store a present at a close position is extracted as a special destination area Agg (step D6).

  Further, the control device 11 displays an area including a point selected by the user via the scale holding area selection screen (see FIG. 38) on the map displayed based on the map data, or the user selects the scale holding area selection screen. The area selected via the button is extracted as the scale holding area Aa (step D7). In this case, the control device 11 extracts an area including the urban area U as the reduced scale holding area Aa. The sizes and shapes of the movement source area As, the special movement destination area Agg, and the scale holding area Aa extracted by the control device 11 can be changed as appropriate as in the sixth embodiment.

  Next, the control device 11 displays the store a included in the special destination area Agg within the frame of the screen of the display unit 16 while maintaining the state where the movement source area As is displayed on the screen of the display unit 16. Thus, the display position of the special movement destination area Agg on the screen of the display unit 16 is automatically changed (step D8).

  Here, as shown in FIG. 41, when the store a which is the special destination point exists outside the frame of the screen of the display unit 16, the user can check the store a or the surrounding points of the store a. Next, the control device 11 moves the special destination area Agg including the store a so as to be drawn toward the center of the screen of the display unit 16, and displays the store a and the surrounding points of the store a as shown in FIG. It is displayed in the frame of the screen of the unit 16. As the special movement destination area Agg moves, the display position of the scale holding area Aa on the screen of the display unit 16 also moves to the movement source area As in this case.

  Next, the control device 11 determines the movement source area As, the special movement destination area Agg whose position on the screen of the display unit 16 has been changed, and the position of the display unit 16 on the screen in accordance with the movement of the special movement destination area Agg. The scale of the map in the area excluding the scale holding area Aa to which is changed is changed and displayed on the screen of the display unit 16 (step D9). In this case, the control device 11 does not change the scale of the map in the movement source area As, the special movement destination area Agg, and the scale holding area Aa. As the display mode (scale mode) in step D9, various modes can be adopted as in the above-described sixth embodiment.

And the control apparatus 11 hold | maintains the state which displayed the map which changed the scale of the area | region except the movement origin area | region As, the special movement destination area | region Agg, and the scale holding | maintenance area | region Aa on the screen of the display part 16 (step D10).
Note that the control device 11 determines that the store that is closest to the current position N of the vehicle does not exist outside the frame of the screen, that is, the store that is closest to the current position N of the vehicle is on the screen. If it is determined that the frame is present (step D4: NO), this control is terminated. That is, the control device 11 displays the store as it is on the screen of the display unit 16 based on the map data without changing the display position of the store on the screen of the display unit 16 or the scale ratio of the map.

  As described above, according to the present embodiment, if a store that is a predetermined point is stored in the database 41 as a special destination point, the store or the periphery of the store is outside the screen of the display unit 16. If it exists, the store or the vicinity of the store is automatically displayed within the frame of the screen of the display unit 16, and the source region As including the current position N of the vehicle that is the source location The map of the special destination area Agg including the store can be displayed on the same screen while the map is held. Therefore, the map can be displayed in such a manner that the positional relationship between the current position N (movement source point) of the vehicle and the store (special movement destination point) can be grasped.

  In addition, the scale of the map in the area excluding the movement source area As, the special movement destination area Agg, and the scale holding area Aa, that is, the area that is unlikely to be noticed by the user is changed, and the movement source area As and the special movement destination area are changed. The scale of the map in the Agg and the scale holding area Aa, that is, the area where the user is likely to pay attention is displayed without being changed. Therefore, the map in the region where the user is likely to pay attention is not distorted and difficult to see, and the map can be displayed in a more convenient manner.

  In the present embodiment, by extracting, as the special movement destination area Agg, an area including a shop that is present at a position closest to the current position N of the vehicle among the shops included in the shop group selected by the user, for example, A store that is located slightly off the screen frame is drawn into the screen frame and displayed. Moreover, the map is displayed in such a manner that the positional relationship between the store and the current position N of the vehicle can be easily grasped. Therefore, the user can reach the store he / she wants to go in the shortest required time and the shortest travel distance.

In the present embodiment, the control device 11 may store various stores in the database 41 together with the number of times the user has actually visited the store. In the store group list display bar 43, it is preferable that the store groups including stores with a large number of times the user actually stops are arranged and displayed at the top. The number of times of stopping at each store is, for example, the number of times the store is set as the route guidance destination G, the number of times the vehicle stops at the store for a predetermined time (at least longer than the signal waiting time), and the user It can be specified based on the number of times of input as a favorite store via the operation switch unit 14 or the remote controller 36.
Moreover, the control apparatus 11 does not extract the area | region containing the shop which exists in the position nearest from the current position N of the vehicle among the shops included in the shop group selected by the user as the special movement destination area Agg, for example, the user An area including stores that exist in the traveling direction of the guide route among the stores included in the store group selected by may be configured to be extracted as the special destination area Agg.

  In addition, in the database 41, for example, points that require attention when a vehicle passes (a sharp curve, a point where the road width narrows, a point where the speed limit changes, a point where accidents frequently occur, a point under construction, etc.) are special destination points. May be stored. In this case, for example, as shown in FIG. 43, when the sharp curve C exists outside the frame of the screen displayed on the display unit 16, the control device 11 designates the region including the sharp curve C as the special movement destination region Agg. Extract as Then, as shown in FIG. 44, the control device 11 maintains the state where the movement source area As including the current position N of the vehicle is displayed on the screen of the display unit 16, and the sharp curve included in the special movement destination area Agg. The display position of the special movement destination area Agg on the screen of the display unit 16 is automatically moved so that C is displayed within the frame of the screen of the display unit 16. In addition, when there is an area that can be extracted as the scale holding area Aa between the movement source area As and the special movement destination area Agg, the control device 11 extracts the area as the scale holding area Aa. Then, the control device 11 changes the scale of the map in the area excluding the movement source area As, the special movement destination area Agg whose position on the screen of the display unit 16 is changed, and the scale holding area Aa. 16 screens. In this case, the control device 11 visually displays a warning (lighting display or blinking display) on the sharp curve C portion, displays a text box indicating the warning content on the sharp curve C portion, or displays the in-vehicle speaker 37. It is preferable to use a configuration that uses an auditory warning.

  Moreover, various points and areas can be set as the special destination points. For example, the control device 11 acquires weather information from an information center (not shown) via the communication unit 19, and based on the weather information, a region having a bad weather condition (for example, a region of heavy rain or strong wind) is a special destination region. The special destination area Agg is automatically extracted within the frame of the screen of the display unit 16 while being extracted as Agg and maintaining the state where the source region As including the current position N of the vehicle is displayed on the screen of the display unit 16. You may make it move. Also in this case, when there is an area that can be extracted as the scale holding area Aa between the movement source area As and the special movement destination area Agg, the control device 11 extracts the area as the scale holding area Aa. And the control apparatus 11 changes the scale of the map in the area | region except the movement origin area | region As containing the current position N of a vehicle, the special movement destination area | region Agg containing the area | region where weather conditions are inferior, and the scale holding area | region Aa. Are displayed on the screen of the display unit 16.

  In addition, the control device 11 links the area including the gas station that exists outside the frame of the screen of the display unit 16 when the remaining amount of gasoline becomes a predetermined amount or less in conjunction with the remaining amount of gasoline of the vehicle. The region Agg may be extracted as Agg and automatically drawn into the frame of the screen of the display unit 16. In this case, the control device 11 visually displays the remaining amount of gasoline, the distance to the gas station, the required time, etc. on the screen of the display unit 16 with a text box or the like, or using the in-vehicle speaker 37 It is good to set it as the structure alert | reported to.

  Further, the control device 11 designates an area including an evacuation place or a detour route that exists outside the screen of the display unit 16 when disaster information (for example, earthquake information or tsunami information) is received from the information center as a special destination area. The region Agg may be extracted as Agg and automatically drawn into the frame of the screen of the display unit 16. In this case, the control device 11 may be configured to display the details of the disaster information (for example, the magnitude of the earthquake and the estimated arrival time of the tsunami) in a text box or the like, or warn using the in-vehicle speaker 37.

Also. For example, when the driver's sleepiness is detected in conjunction with a sleepiness detection system that detects the driver's sleepiness based on, for example, the blinking situation of the driver of the vehicle, the control device 11 is outside the screen of the display unit 16. An area including the service area to be extracted may be extracted as the special movement destination area Agg, and the area Agg may be automatically drawn into the frame of the screen of the display unit 16. In this case, the control device 11 may be configured to display the distance to the service area, the required time, and the like in a text box or the like, or to notify using the in-vehicle speaker 37.
As described above, it is preferable to automatically draw a recommended spot or region in accordance with the situation into the screen frame of the display unit 16.
In addition, the control device 11 may be configured to automatically set, for example, a point or region with a high degree of danger when the vehicle travels, such as a frequent accident point or a sharp curve point, as the scale holding region Aa.

(Eighth embodiment)
Next, an eighth embodiment of the present invention will be described with reference to FIGS. The present embodiment is different from the above-described embodiment in the control content by the control device 11 when the distance between the movement source point and the movement destination point is a long distance. Only differences from the above embodiment will be described below.
As shown in FIG. 47, when the distance between the current position N (movement source point) of the vehicle and the destination G (movement destination point) is a long distance (for example, 400 km or more), the user There is a high possibility of using the highway H in the route up to. On such an expressway H, the user often travels along the road with little or no confirmation of the map displayed on the screen of the display unit 16. Therefore, the scale of the map of the highway H and the surrounding area can be set extremely small.

Therefore, in the present embodiment, as shown in FIG. 45, the map display device 10 executes the control program in the CPU of the control device 11 to virtually realize the small scale settable area extraction unit 61 by software. To do.
The small scale settable area extraction unit 61 sets a small scale between the movement source area As including the current position N (movement source point) of the vehicle and the movement destination area Ag including the destination G (movement destination point). A region that can be extracted is extracted as a small scale setting region Am (see FIG. 47). It should be noted that all of the small scale settable areas Am do not have to exist within the frame of the screen of the display unit 16, and only a part thereof needs to exist within the frame of the screen of the display unit 16.

Next, the contents of control executed by the control device 11 in the present embodiment will be described. FIG. 46 is a flowchart showing the control contents executed by the control device 11 of the map display device 10.
In the present embodiment, as shown in FIG. 47, the control device 11 displays a map for route guidance on the screen of the display unit 16 at the time of route guidance to the destination G, for example (step E1). In the map displayed on the screen, an area including the current position N of the vehicle is extracted as the movement source area As (step E2), and an area including the destination G existing outside the frame of the display unit 16 is selected as the movement destination area Ag. (Step E3). Further, the control device 11 displays an area including a point selected by the user via the scale holding area selection screen (see FIG. 38) on the map displayed based on the map data, or the user selects the scale holding area selection screen. The area selected via the key is extracted as the scale holding area Aa (step E4). In this case, the control device 11 extracts the service area SA and its surrounding area existing on the expressway H, and the parking area PA and its surrounding area existing on the expressway H as the scale holding area Aa.

  Further, the control device 11 extracts an area where the scale can be set small between the movement source area As and the movement destination area Ag as a small scale setting possible area Am (step E5). In this case, the control device 11 extracts the area excluding the scale holding area Aa and the area around the area of the highway H existing between the movement source area As and the movement destination area Ag as the small scale setting area Am. To do. Note that the size and shape of the movement source area As, the movement destination area Ag, the scale holding area Aa, and the small scale setting area Am extracted by the control device 11 can be changed as appropriate, and are set in advance in the control program. Alternatively, the user may make settings via the operation switch unit 14, the remote controller 36, or the like.

  Next, the control device 11 automatically changes the display position of the destination area Ag on the screen of the display unit 16 while maintaining the state where the source area As is displayed on the screen of the display unit 16 (step E6). ). In this case, the control device 11 moves the destination area Ag so as to be drawn toward the center of the screen of the display unit 16, and displays the destination G and the peripheral points of the destination G as shown in FIG. In the frame of the screen. As the movement destination area Ag moves, the display positions of the plurality of scale holding areas Aa on the screen of the display unit 16 also move to the movement source area As in this case.

  Next, the control device 11 changes the movement source area As, the movement destination area Ag whose position on the screen of the display unit 16 is changed, and the position of the display unit 16 on the screen according to the movement of the movement destination area Ag. The scale of the map in the area excluding the reduced scale holding area Aa excluding the small scale settable area Am is changed and displayed on the screen of the display unit 16 (step E7). In this case, the control device 11 does not change the scale of the map in the movement source area As, the movement destination area Ag, and the scale holding area Aa. Further, the control device 11 sets the map scale in the small scale settable area Am to an area excluding the movement source area As, the movement destination area Ag, and the scale holding area Aa (excluding the small scale settable area Am in the area). (Part) is set smaller than the scale of the map and displayed on the screen of the display unit 16. As the display mode (scale mode) in step E7, various modes can be adopted. For example, a region excluding the movement source region As, the movement destination region Ag, and the scale holding region Aa (out of the regions) The scale of the map in the portion excluding the small scale settable area Am) may be set smaller in steps, or may be set smaller continuously (linearly). The scale of the map at the boundary portion (boundary area) between the area excluding the movement source area As, the movement destination area Ag, and the scale holding area Aa and the small scale setting area Am is set to be different in stages. Alternatively, they may be set so as to be different continuously (linearly).

  Then, the control device 11 changes the scale of the area excluding the movement source area As including the current position N of the vehicle, the movement destination area Ag including the destination G, and the scale holding area Aa including the service area SA and the parking area PA. And the state which displayed the map which set the scale of the small scale setting possible area | region Am extremely small on the screen of the display part 16 is hold | maintained (step E8).

  As described above, according to the present embodiment, an area where the scale can be set small between the movement source area As and the movement destination area Ag, that is, the user is displayed on the screen of the display unit. When there is an area where there is a high possibility that the map is hardly confirmed or not at all, the area is extracted as the small scale setting area Am, and the map scale in the area Am is set smaller. Therefore, for example, even when the distance between the movement source point As and the movement destination point Ag is a long distance, the scale of such a small scale setting area Am is set smaller, so that the movement source The map can be displayed in such a manner that the positional relationship between the point As and the destination point Ag can be grasped. In addition, by providing an area for setting the map scale to be smaller as described above, the map can be displayed by effectively utilizing the limited display area of the screen of the display unit 16.

  When the current position N of the vehicle approaches the service area SA or the parking area PA as the vehicle travels on the highway H, information such as the distance to the service area SA or the parking area PA and the required time is texted. It may be configured to visually display in a box or the like, or to make an audible notification using the in-vehicle speaker 37.

  The area that can be set as the small scale settable area Am is not limited to the area including the highway H. For example, a toll road over a predetermined distance, a road along the coast, and a road on which a vehicle has traveled many times in the past. Various areas such as a region and a region can be set. In short, as long as it is assumed that the user hardly or at all confirms the map displayed on the screen of the display unit 16, it can be set as the small scale setting area Am. In addition, a selection screen in which an area to be extracted as the small scale settable area Am can be selected by a check box, for example, may be displayed on the screen of the display unit 16.

  Moreover, you may combine this embodiment with the above-mentioned 7th Embodiment. That is, the small scale settable area extraction unit 61 sets a small scale between the movement source area extracted by the movement source area extraction unit 20 and the special movement destination area extracted by the special movement destination area extraction unit 42. It is also possible to extract a region that can be used as a small scale setting region. Further, the scale changing unit 23 converts the map scale in the small scale settable area extracted by the small scale settable area extracting unit 61 to the map in the area excluding the movement source area, the special movement destination area, and the scale holding area. You may make it set smaller than a reduced scale.

(Ninth embodiment)
The ninth embodiment of the present invention will be described below with reference to FIGS. The present embodiment is different from the above-described embodiments in the configuration of the map display device 10 and the content of control by the control device 11. Only differences from the above-described embodiments will be described below.
As shown in FIG. 49, the map display device 10 executes a control program in the CPU of the control device 11, so that the point extraction unit 71, the actual size distance calculation unit 72, and the actual size distance display unit 73 are virtualized by software. Realize.

  The point extraction unit 71 extracts a point corresponding to the first touch position touched by the user as a first point in the map displayed on the screen of the display unit 16 and corresponds to the second touch position touched by the user. The point is extracted as the second point. In addition, when the user moves the first touch position, the point extraction unit 71 extracts a point corresponding to the first touch position while following the moving first touch position as the first point. At the same time, when the user moves the second touch position, the point corresponding to the second touch position is extracted as the second point while following the moving second touch position. .

  The actual distance calculation unit 72 calculates the actual distance between the first point and the second point extracted by the point extraction unit 71 as the actual distance. The actual distance display unit 73 displays the actual distance calculated by the actual distance calculator 72 on the screen of the display unit 16. The control device 11 is configured to be able to execute control to be described later by the point extraction unit 71, the actual size distance calculation unit 72, and the actual size distance display unit 73.

Next, the contents of control executed by the control device 11 in the present embodiment will be described. FIG. 50 is a flowchart showing the content of the actual distance calculation display processing executed by the control device 11 of the map display device 10.
In this embodiment, when the control device 11 changes the scale of the map and displays it on the screen of the display unit 16 as shown in each of the above-described embodiments, the control device 11 touches the touch panel switch provided on the screen of the display unit 16. It is determined whether or not a signal (a signal indicating that the user has touched the screen of the display unit 16 or a contact signal) has been input, that is, whether or not the user has touched (touched) a finger on the screen of the display unit 16. (Step F1). In this embodiment, it is assumed that the touch panel switch provided on the screen of the display unit 16 is a so-called multi-touch type touch panel switch that can be operated simultaneously by a plurality of fingers.

  For example, as shown in FIG. 51, when the user touches two fingers on the screen of the display unit 16, a touch signal is input from the touch panel switch. In response to this, when the control device 11 detects a touch signal input from the touch panel switch (step F1: YES), based on this touch signal, the user touches the finger on the screen of the display unit 2 2 Two points, that is, the first touch position P1 and the second touch position P2 are specified (step F2). And the control apparatus 11 extracts the point corresponding to the specified 1st touch position P1 in the map currently displayed on the screen of the display part 16 as a 1st point Q1, and respond | corresponds to the specified 2nd touch position P2. A point to be extracted is extracted as a second point Q2. The first point Q1 and the second point Q2 are not points on the screen of the display unit 16 (positions on the screen) but points on the map displayed based on the map data. In this case, the map data It is specified by the coordinate information included in.

  Next, the control device 11 calculates the distance between the extracted first point Q1 and second point Q2 as the actual distance D (step F4). That is, the control device 11 determines the coordinate information of the first point Q1 and the coordinate information of the second point Q2, that is, the absolute positional relationship between the first point Q1 and the second point Q2 (whether the scale of the map has been changed or not). The actual distance D is calculated on the basis of the absolute positional relationship on the map that is not affected by this. Here, in this embodiment, the scale of the map is changed and displayed on the screen of the display unit 16 according to the control contents shown in the above-described embodiments. Even when the scale of the map is changed and displayed in this manner, the control device 11 calculates the actual distance D based on the absolute positional relationship between the first point Q1 and the second point Q2.

The calculation method of the actual distance D is not limited to the above-described method, and various calculation methods can be employed. For example, as shown in FIG. 52, a map (map before changing the scale) displayed on the screen of the display unit 16 is divided into a plurality of sections, and distance data indicating an actual distance is associated with each section. Keep it. Note that the example shown in FIG. 52 shows a state in which the scale of the map has been changed, so the sizes of the sections are different. However, the distance data (distance magnitude) associated with each section is the same. Then, based on the distance data of the section existing between the first point Q1 and the second point Q2 (including the section where the first point Q1 exists and the section where the second point Q2 exists), the first point The actual distance D between Q1 and the second point Q2 may be calculated.
In addition, the control device 11 may be configured to calculate a linear distance between the first point Q1 and the second point Q2 as the actual distance D, or between the first point Q1 and the second point Q2. The distance along the road existing in the road (see, for example, the guide route R shown in FIG. 53) may be calculated as the actual distance D.

  Next, the control device 11 displays the calculated actual distance D on the screen of the display unit 16 (step F5). In this case, as shown in FIG. 51, the control device 11 is configured to display the actual distance D along a straight line connecting the first point Q1 and the second point Q2. Note that the display method of the actual distance D is not limited to this method, and various display methods can be employed. For example, as shown in FIG. 53, when the control device 11 calculates the actual distance D along the road R existing between the first point Q1 and the second point Q2, the control device 11 follows the road R. Thus, the actual distance D may be displayed.

  Further, the map display device 10 is configured to calculate and display the actual distance D following the movement of the finger when the user moves the finger touched on the screen of the display unit 16. Yes. That is, the control device 11 determines the actual distance D calculated by the actual distance calculator 72 and displayed by the actual distance display unit 73 according to the movement of the first touch position P1 and / or the movement of the second touch position P2. It is configured to change. Thereby, for example, as shown in FIGS. 54A and 54B, the actual distance D displayed on the display unit 16 follows the movement of the finger touched on the screen of the display unit 16 by the user. It is designed to change dynamically. 54A shows a state before the user moves the finger, and FIG. 54B shows a state after the user moves the finger. Thus, the display position and length of the actual distance D displayed on the display unit 16 are dynamically changed in accordance with the change in the interval and angle between the two fingers touched on the screen of the display unit 16 by the user. Change.

  The above will be illustrated more specifically. For example, when the user touches two points on the map simultaneously with the thumb and index finger, the two touched points are extracted, and the actual distance D between them is calculated and displayed. Further, while maintaining the state in which the two fingers are touched, the index finger is moved clockwise as if the leg of the compass, for example, with the thumb as a fulcrum. Then, following the movement of the finger, the display of the distance display D dynamically moves and changes clockwise as if the fulcrum of the compass (in this case, near the touch position of the thumb).

  That is, when the user moves the first touch position, the point extraction unit 71 extracts a point corresponding to the first touch position as the first point while following the moving first touch position. When the user moves the second touch position, an operation for extracting the point corresponding to the second touch position as the second point while following the moving second touch position, and further, these are extracted. Based on the first point and / or the second point, the actual distance D calculated by the actual distance calculator 72 and displayed by the actual distance display unit 73 is the movement of the first touch position and / or the second The operation that changes in accordance with the movement of the two touch positions is as follows: the user touches the first touch position and the second touch position at the same time, and the first touch position and the second touch position. When the touched state is maintained, that is, when the finger touched by the user is not released from the screen, the above operation is not executed when the user releases the finger from the screen. ).

  If the scale of the map is changed and displayed on the screen of the display unit 16, the map is displayed in a partially compressed state, and the scale also varies depending on the position in the screen, so the distance between any two points Becomes difficult to grasp. According to the present embodiment, when the user touches between two arbitrary points on the screen of the display unit 16, the actual distance D (actual distance) between the two points is displayed on the display unit 16. As a result, even in a configuration in which the scale of the map is changed and displayed, the user can touch the arbitrary two points on the screen of the display unit 16 (two points where the actual distance is to be grasped) by a simple operation. The actual distance between two points can be grasped.

  Further, the actual distance D displayed on the display unit 16 is dynamically changed following the movement of the finger touched on the screen of the display unit 16 by the user. As a result, it is possible to display the actual actual distance D smoothly according to the movement of the user's finger. In this way, the control of dynamically changing the actual distance D displayed on the display unit 16 while following the movement of the user's finger is performed by releasing the finger touched on the screen of the display unit 16 from the screen. Unless it is configured to run continuously.

Various units such as meters, miles, feet, and villages can be used as the actual distance D, for example. Furthermore, a unit changeover switch (not shown) for switching the units is provided, for example, and the units to be used can be switched. You may comprise.
In addition, the calculation and display of the actual distance D is not only in a state where the scale of the map is changed (a state where the map is deformed) but also in a state where the scale of the map is not changed (a state where the map is not deformed, for example, It may be configured to be executable even in the state shown in FIG.

(Other embodiments)
The present invention is not limited to the above-described embodiments, and can be modified or expanded as follows, for example.
The control device 11 does not hold the state in which the map whose scale between the movement source area As and the movement destination area Ag is changed is displayed on the screen of the display unit 16 according to a predetermined condition, for example, from a touch panel switch. It may be configured to have a self-centering function for returning to the original display mode before changing the scale on condition that the input of the operation signal is not detected. In addition, the control device 11 holds a state in which a map whose scale has been changed in the area excluding the movement source area As and the movement destination area Ag or the special movement destination area Agg and the scale holding area Aa is displayed on the screen of the display unit 16. Instead of this, for example, on the condition that the input of the operation signal from the touch panel switch is not detected, a self-centering function for returning to the original display mode before changing the scale may be provided. Further, the control device 11 holds the state in which the map whose scale between the movement source area As and the movement destination area Ag is changed is displayed on the screen of the display unit 16 according to a predetermined condition, or the movement source area An operation signal from, for example, a touch panel switch is maintained after maintaining a state where a map whose scale has been changed in an area other than the area As and the movement destination area Ag or the special movement destination area Agg and the scale holding area Aa is displayed on the screen of the display unit 16. When the input is detected again, that is, when the user touches (touches) the screen of the display unit 16 again, the original display mode before changing the scale may be restored (self-centering). Further, the control device 11 may perform self-centering when a current position button for displaying the current position of the vehicle on the screen of the display unit 16 is operated.

  The control device 11 specifies the movement amount and movement speed of the finger that the user moves on the screen based on a signal input from the touch panel switch, and changes the scale of the map according to the specified movement amount and movement speed. You may do it. In this case, for example, the larger the movement amount and movement speed of the user's finger, the smaller the scale of the map between the movement source area As and the movement destination area Ag, and the movement amount of the user's finger. The smaller the movement speed, the larger the scale of the map between the movement source area As and the movement destination area Ag can be set. For example, the control device 11 reduces the scale of the map in an area excluding the movement source area As and the movement destination area Ag or the special movement destination area Agg and the scale holding area Aa as the movement amount and movement speed of the user's finger increases. Is set smaller, and the smaller the moving amount and moving speed of the user's finger, the larger the scale of the map in the area excluding the movement source area As and the movement destination area Ag or the special movement destination area Agg and the scale holding area Aa. be able to.

The movement destination area Ag and the special movement destination area Agg are moved (retracted) in the direction of the center of the screen displayed on the display unit 16, as well as the vertical direction, the horizontal direction, and the diagonal direction on the screen displayed on the display unit 16. Movement (retraction) in all directions including directions is possible.
The touch panel switch may be constituted by, for example, a pressure-sensitive touch panel switch provided with a resistance film. In this case, it is possible to change the scale of the map according to the operation pressure (pressing force) of the touch panel switch by the user.

The scale of the map may be changed in accordance with the amount of operation of the operator of the remote controller 36 or the amount of pressing. In this case, for example, the map scale can be set smaller as the operation amount or push-in amount of the operation element is larger, or the map scale can be set larger as the operation amount or push-in amount of the operation element is smaller. Further, a remote operation device such as a haptic device may be applied instead of the remote control 36. Also in this case, it is possible to change the scale of the map according to the operation amount and the push-in amount of the operator of the remote operation device. Alternatively, the self-centering may be performed to return to the original display mode by pushing the remote controller 36 or the operation element of the remote operation device.
For example, the operation switch unit 14 is provided with a changeover switch, and in accordance with the operation of the changeover switch, any display mode according to each of the embodiments described above and a destination point on the screen of the display unit by scrolling the map are displayed. It is good also as a structure which switches the conventional display mode displayed in a frame.

In addition, normally, the map is displayed in the conventional display mode, and the above-described automatic operation is automatically performed when the touch panel switch is operated with a predetermined operation content or when the operator of the remote controller 36 is operated with the predetermined operation content. It is good also as a structure switched to the display mode which concerns on each embodiment. In addition, as a predetermined operation content that is a condition for switching the display mode, for example, when the user touches the capacitive touch panel switch for a predetermined time or more, the user touches the pressure-sensitive touch panel switch with a predetermined pressing force. In this case, it is possible to set, for example, a case where the user pushes the operation element of the remote controller 36 with a predetermined pressing force. Further, in a configuration using a multi-touch type touch panel switch that can be operated simultaneously with a plurality of fingers, for example, when the user operates with one finger, the destination point can be moved by scrolling the map. Is switched to the conventional display mode in which the image is displayed within the frame of the screen of the display unit, and when the user operates with a plurality of (for example, two) fingers, the display mode is switched to any one of the display modes according to the above-described embodiments. It can be constituted as follows.
A plurality of embodiments may be applied to the map display device 10 at the same time.
The present invention is applicable not only to the map display device 10 provided in the above-described car navigation system but also to all map display devices that display a map on the screen based on map data, such as a mobile phone, a portable terminal, and a desktop terminal. is there.

  In the drawing, 10 is a map display device, 16 is a display unit, 20 is a movement source area extraction unit (movement source area extraction means), 21 is a movement destination area extraction part (movement destination area extraction means), and 22 is a movement destination area position. A change unit (destination area position changing unit), 23 a scale changing unit (scale changing unit), 24 a scale holding region extracting unit (scale holding region extracting unit), 41 a database (special moving destination point storage unit), 42 Is a special destination area extracting unit (special destination area extracting unit), 51 is a partial scale changing unit (partial scale changing unit), 61 is a small scale settable region extracting unit (small scale settable region extracting unit), and 71 is A point extracting unit (point extracting unit), 72 is an actual distance calculating unit (actual distance calculating unit), and 73 is an actual distance displaying unit (actual distance displaying unit).

Claims (14)

A display unit for displaying a map on the screen based on the map data;
In the map displayed on the screen of the display unit, a movement source area extraction unit that extracts a region including a movement source point as a movement source area;
In the map displayed on the screen of the display unit, a destination area extracting unit that extracts an area including a destination point as a destination area;
While maintaining the state where the movement source area extracted by the movement source area extraction unit is displayed on the screen of the display unit, the display unit of the movement destination area extracted by the movement destination area extraction unit A destination area position changing means for changing the position on the screen;
The scale of the map is changed between the movement source area extracted by the movement source area extraction means and the movement destination area whose position on the screen of the display unit has been changed by the movement destination area position changing means. Scale changing means for displaying on the screen of the display unit,
A map display device characterized by comprising: Special destination location storage means for storing a predetermined location on the map displayed based on the map data as a special destination location;
When the special movement destination point stored in the special movement destination point storage means exists outside the frame of the screen of the display unit, a special movement that extracts an area including the special movement destination point as a special movement destination area A destination area extraction means;
Further comprising
The destination region position changing unit is extracted by the special destination region extracting unit while maintaining the state where the source region extracted by the source region extracting unit is displayed on the screen of the display unit. The position of the special destination area on the screen of the display unit is automatically changed so that the special destination point included in the special destination area is displayed within the frame of the screen of the display unit. ,
The scale changing means includes the movement source area extracted by the movement source area extraction means and the special movement destination area in which the position of the display unit on the screen is automatically changed by the movement destination area position changing means. The map display device according to claim 1, wherein a scale of the map between and is changed and displayed on the display unit. The destination area extracting means is configured to be capable of extracting a plurality of destination areas,
The movement destination area position changing unit is configured to maintain a state where the movement source area extracted by the movement source area extraction unit is displayed on the screen of the display unit, and a plurality of movement area extracted by the movement destination area extraction unit. The position of the display area of the display area on the screen can be changed respectively,
The scale changing means includes the movement source area extracted by the movement source area extraction means and a plurality of movement destination areas whose positions on the screen of the display unit have been changed by the movement destination area position changing means. The map display device according to claim 1, wherein the scale of the map is changed and displayed on the screen of the display unit. The special destination area extracting means is configured to be capable of extracting a plurality of the special destination areas,
The destination region position changing unit is extracted by the special destination region extracting unit while maintaining the state where the source region extracted by the source region extracting unit is displayed on the screen of the display unit. The position of the special destination area on the screen of the display unit is automatically set so that the special destination point included in each of the plurality of special destination areas is displayed within the frame of the screen of the display unit. Can be changed dynamically,
The scale changing means includes the movement source area extracted by the movement source area extraction means and a plurality of special movements in which the position of the display unit on the screen is automatically changed by the movement destination area position changing means. The map display device according to claim 2, wherein a scale of the map with respect to a previous area is changed and displayed on the display unit.   5. The apparatus according to claim 1, further comprising a partial scale changing unit that changes the scale of the map displayed on the screen of the display unit by the scale changing unit changing the scale. The map display device described in 1. A display unit for displaying a map on the screen based on the map data;
In the map displayed on the screen of the display unit, a movement source area extraction unit that extracts a region including a movement source point as a movement source area;
In the map displayed on the screen of the display unit, a destination area extracting unit that extracts an area including a destination point as a destination area;
While maintaining the state where the movement source area extracted by the movement source area extraction unit is displayed on the screen of the display unit, the display unit of the movement destination area extracted by the movement destination area extraction unit A destination area position changing means for changing the position on the screen;
Scale holding area extracting means for extracting any area existing in the map as a scale holding area;
Extracted by the source region extracted by the source region extracting unit, the destination region whose position on the screen of the display unit has been changed by the destination region position changing unit, and the scale holding region extracting unit Scale changing means for changing the scale of the map in the area excluding the scale holding area and displaying it on the screen of the display unit;
A map display device characterized by comprising: An area where a scale can be set small between the movement source area extracted by the movement source area extraction means and the movement destination area extracted by the movement destination area extraction means is a small scale settable area Further comprising a small scale settable area extracting means for extracting as
The scale changing means is configured to change the scale of the map in the small scale settable area extracted by the small scale settable area extracting means in an area excluding the movement source area, the movement destination area, and the scale holding area. The map display device according to claim 6, wherein the map display device is set smaller than a scale of the map. Special destination location storage means for storing a predetermined location on the map displayed based on the map data as a special destination location;
When the special movement destination point stored in the special movement destination point storage means exists outside the frame of the screen of the display unit, a special movement that extracts an area including the special movement destination point as a special movement destination area A destination area extraction means;
Further comprising
The destination region position changing unit is extracted by the special destination region extracting unit while maintaining the state where the source region extracted by the source region extracting unit is displayed on the screen of the display unit. The position of the special destination area on the screen of the display unit is automatically changed so that the special destination point included in the special destination area is displayed within the frame of the screen of the display unit. ,
The scale changing means includes the movement source area extracted by the movement source area extraction means and the special movement destination area in which the position of the display unit on the screen is automatically changed by the movement destination area position changing means. The map display device according to claim 6, wherein a scale of the map in an area excluding the scale holding area extracted by the scale holding area extracting unit is changed and displayed on the display unit. A small scale can be set for an area that can be set to a smaller scale between the source area extracted by the source area extracting unit and the special destination area extracted by the special destination area extracting unit. A small scale settable area extracting means for extracting as a possible area;
The scale change means is an area excluding the movement source area, the special movement destination area, and the scale holding area for the map scale in the small scale setting area extracted by the small scale setting area extraction means. 9. The map display device according to claim 8, wherein the map display device is set smaller than a scale of the map. In the map displayed on the screen of the display unit, the point corresponding to the first touch position touched by the user is extracted as the first point, and the point corresponding to the second touch position touched by the user is set to the second point. Point extraction means for extracting as points,
An actual distance calculating means for calculating the distance between the first point and the second point extracted by the point extracting means as an actual distance;
An actual distance display means for displaying the actual distance calculated by the actual distance calculation means on the screen of the display unit;
The map display device according to any one of claims 1 to 9, further comprising:   The map display device according to claim 10, wherein the actual distance calculation means calculates a straight line distance between the first point and the second point as the actual distance.   The map display device according to claim 10, wherein the actual distance calculation means calculates a distance along a road existing between the first point and the second point as the actual distance. When the user moves the first touch position, the point extraction means extracts a point corresponding to the first touch position as the first point while following the moving first touch position. At the same time, when the user moves the second touch position, the point corresponding to the second touch position is extracted as the second point while following the moving second touch position. ,
The actual distance calculated by the actual distance calculation means and displayed by the actual distance display means is configured to change according to the movement of the first touch position and / or the movement of the second touch position. The map display device according to claim 10, wherein the map display device is a display device. In the case where the user touches the first touch position and the second touch position at the same time, and maintains the state where the first touch position and the second touch position are touched,
When the user moves the first touch position, the point extraction means extracts a point corresponding to the first touch position as the first point while following the moving first touch position. At the same time, when the user moves the second touch position, the point corresponding to the second touch position is extracted as the second point while following the moving second touch position.
The actual distance calculated by the actual distance calculation means and displayed by the actual distance display means is configured to change according to the movement of the first touch position and / or the movement of the second touch position. 14. The map display device according to claim 13, wherein the map display device is provided.

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