JP2008128928A - Vehicle-mounted map display apparatus and navigation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle-mounted map display apparatus capable of easily changing over between the presence and absence of map display of underground buildings according to a user's desire. <P>SOLUTION: A map screen is displayed (step S10), and it is determined whether underground buildings are present within the map range of the map screen (step S20). In the case where it is determined that underground buildings are present within the map range, an underground display switching button is displayed for displaying a map of the underground buildings (step S30). When the user selects the underground display switching button (step S40), the map of the underground buildings is accordingly displayed on the map screen (step S50). In the case where the user selects the underground display switching button again (step S90) when the map of the underground buildings is displayed on the map screen, the map of the underground buildings is deleted (step S100). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an apparatus such as a navigation apparatus that is mounted on a vehicle and displays a map.

  Conventionally, when an underground building such as an underground shopping center or an underground parking lot exists, a navigation device that displays a map of the underground building is known (see Patent Document 1).

JP 2003-166836 A

  In the navigation device disclosed in Patent Document 1, when the own vehicle approaches a place where an underground building exists, a map of the underground building is always displayed regardless of whether or not the user desires. As a result, the map on the ground and the map of the underground building are displayed in an overlapping manner, and the contents of the map screen may be difficult to understand.

The on-vehicle map display device according to the invention of claim 1 includes a map display control means for displaying a map screen on a display monitor for a predetermined map range, and an underground building within the map range of the map screen displayed by the map display control means. A button for displaying an underground display switching button for displaying a map of an underground building determined to be within the map range by the underground building determining means for determining whether or not there is an underground building on the display monitor And a display control means, and an underground building display control means for displaying a map of the underground building on the map screen when the user selects the underground display switching button displayed by the button display control means. Is.
According to a second aspect of the present invention, in the vehicle-mounted map display device according to the first aspect, when a map of the underground building is displayed on the map screen, the underground building switching button is selected again by the user. The display control means deletes the map of the underground building.
According to a third aspect of the present invention, in the on-vehicle map display device of the second aspect, the button display control means displays the map of the underground building on the map screen and the map of the underground building on the map screen. The display form of the underground display switching button is changed depending on whether it is not displayed.
According to a fourth aspect of the present invention, in the on-vehicle map display device according to any one of the first to third aspects, the button display control means displays an underground display switching button with the name of the underground building.
According to a fifth aspect of the present invention, in the on-vehicle map display device according to any one of the first to fourth aspects, the underground structure includes at least an underground mall and an underground parking lot.
A navigation device according to a sixth aspect of the present invention includes the on-vehicle map display device according to any one of the first to fifth aspects, and a current location detection unit that detects the current location of the vehicle. A map screen is displayed for the vicinity of the current location of the selected vehicle.

  According to the present invention, the presence or absence of a map display of an underground building can be easily switched according to a user's request.

  A configuration of a navigation apparatus according to an embodiment of the present invention is shown in FIG. The navigation device 1 shown in FIG. 1 includes a control circuit 11, a ROM 12, a RAM 13, a current location detection device 14, an image memory 15, a display monitor 16, an input device 17, and a disk drive 18. The disc drive 18 is loaded with a DVD-ROM 19 in which map data is recorded.

  The control circuit 11 includes a microprocessor and its peripheral circuits, and performs various processes and controls by executing a control program stored in the ROM 12 using the RAM 13 as a work area. Based on the map data recorded on the DVD-ROM 19, the control circuit 11 performs various processes such as displaying a map screen, setting a destination, and searching for a recommended route to the set destination as described later. Is done.

  The current location detection device 14 detects the current location where the host vehicle is located. The current location detection device 14 includes, for example, a vibration gyro sensor 14a for detecting the traveling direction of the host vehicle, a vehicle speed sensor 14b for detecting the vehicle speed, and a GPS sensor 14c for receiving GPS signals from GPS satellites. The navigation device 1 can determine a route search start point based on the current location detected by the current location detection device 14, and can determine the position of the vehicle position mark displayed on the map.

  The image memory 15 temporarily stores image data output from the control circuit 11. Various image displays are performed on the display monitor 16 based on the image data stored in the image memory 15. The display monitor 16 is combined with a touch panel 16a for detecting a user's touch panel operation. When the user touches any position on the display monitor 16 with a finger or the like, the touch panel operation is detected by the touch panel 16 a and information on the touch position is output to the control circuit 11. Based on the touch position information from the touch panel 16a, the control circuit 11 determines which part of the image displayed on the display monitor 16 is touched, and executes processing according to the determination result. Thereby, various operations are executed in the navigation device 1.

  The input device 17 has various input switches and is realized by an operation panel, a remote controller, or the like. The user searches for the corresponding place from the map data by inputting the address, telephone number, facility name, etc. of the place desired as the destination by operating the input device 17 or the touch panel operation as described above. Can be set to Alternatively, the destination can be set by designating a specific point on the map screen or selecting one of registered locations registered in advance.

  The disk drive 18 reads map data from the loaded DVD-ROM 19. This map data includes route calculation data used for route search to the destination, route guidance data used to guide the vehicle to the destination according to the set route, such as intersection name and road name, and road The road data that represents is included. The map data also includes background data representing map shapes other than roads such as rivers, railways, various facilities on the map (landmarks), and the like. Furthermore, information related to underground structures described later is also recorded as part of the map data.

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

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

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

  Next, a map screen displayed on the navigation device 1 will be described. The navigation device 1 displays a map around the vehicle position on the display monitor 16 based on the map data recorded on the DVD-ROM 19. At this time, either a plane map or a bird's-eye view map is selected in accordance with an operation from the user, and the selected type of map screen is displayed. In addition, when the vehicle is driving near a place where an underground building such as an underground mall or underground parking lot exists, a button for switching whether to display the map of the underground building (underground display switching button) ) Is displayed. When the user operates this underground display switching button, a map of the underground building is displayed on the map screen.

  FIG. 2 shows an example of a planar map screen when a map of an underground building is not displayed. When such a planar map screen is displayed on the navigation device 1, if an underground building such as an underground shopping street or an underground parking lot exists within the map range around the vehicle position, the underground display switching button 21 is displayed. Displayed on the screen. This underground display switching button 21 is marked with the name of the target underground building. In the example of FIG. 2, the underground display name “XX station underground shopping area” is described in the underground display switching button 21. The user can determine whether or not to display a map of the underground building based on the name of the underground building. When the user selects the underground display switching button 21 by operating the input device 17 or touch panel operation, a map of the underground building is displayed on the map screen.

  FIG. 3 shows an example of a planar map screen when a map of an underground building is displayed. When the underground display switching button 21 is selected by the user on the screen of FIG. 2, such a planar map screen is displayed based on the map data. In this map screen, a map of an underground shopping street as indicated by reference numeral 22 is displayed as a planar map for “XX station underground shopping street” described in the underground display switching button 21. The user can grasp the state of the underground shopping area from the underground shopping area map 22. When the user selects the underground display switching button 21 on the map screen in FIG. 3 by operating the input device 17 or operating the touch panel, the underground street map 22 is erased from the map, and the map screen returns to FIG. In this way, a map of the underground building on the planar map is displayed.

  In addition, about the map of the ground part which overlaps with the underground shopping area map 22, it is preferable to delete the part or to display it semi-transparently so that the display of the underground shopping area map 22 may not be prevented. In the screen example of FIG. 3, only the road shape of the ground portion overlapping the underground shopping area map 22 is represented by a broken line. Thereby, the user can grasp the state of the road above the underground shopping area even when the underground shopping area map 22 is displayed.

  As described above, when the user selects the underground display switching button 21 on the planar map screen of FIG. 2, the underground street map 22 is displayed and switched to the planar map screen of FIG. That is, the underground display switching button 21 in FIG. 2 corresponds to an operation for displaying a map of the underground structure. Therefore, “display” is written under the name of the underground shopping area on the underground display switching button 21 in FIG. 2. On the other hand, when the user selects the underground display switching button 21 on the planar map screen in FIG. 3, the underground street map 22 is deleted and switched to the planar map screen in FIG. 2. That is, the underground display switching button 21 in FIG. 3 corresponds to an operation for hiding the map of the underground structure. Therefore, in the underground display switching button 21 in FIG. 3, “non-display” is written under the name of the underground mall. Thus, every time the planar map screens of FIGS. 2 and 3 are switched, the underground display switching button 21 is changed from the display side to the non-display side or from the non-display side to the display side accordingly.

  In the case of a bird's-eye view map, a map of an underground building is displayed in the same manner as in the case of the above-described planar map. FIG. 4 shows an example of a bird's-eye view map screen when a map of an underground building is not displayed. When such a bird's-eye view map screen is displayed on the navigation device 1, if an underground building such as an underground shopping center or an underground parking lot exists within the map area near the host vehicle, the underground display is performed as in FIG. A switching button 21 is displayed on the screen. When the user selects the underground display switching button 21 by operating the input device 17 or touch panel operation, a map of the underground building is displayed on the map screen.

  FIG. 5 shows an example of a bird's-eye view map screen when a map of an underground building is displayed. When the underground display switching button 21 is selected by the user on the screen of FIG. 4, such a bird's-eye view map screen is displayed based on the map data. In this map screen, an underground street map 22 is displayed as a bird's eye view map for “XX station underground shopping street” described in the underground display switching button 21. When the user selects the underground display switching button 21 on the map screen of FIG. 5 by operating the input device 17 or the touch panel, the underground street map 22 is erased from the map, and the map screen of FIG. 4 is restored. In this way, the map of the underground building in the bird's-eye view map is displayed.

  In the above description, an example in which a map is displayed for a map range around the vehicle position has been described. However, the present invention is not limited to the vehicle position, and may be applied to display a map of the surrounding area at any point. Can do. In other words, when a flat map screen or a bird's-eye view map screen is scrolled according to the user's operation and a map is displayed for an arbitrary map range, if there is an underground structure within the map range, Display the underground display switching button. When this underground display switching button is selected by the user, a map of the underground structure is displayed. By doing in this way, the map of an underground structure can be displayed about arbitrary map ranges.

  FIG. 6 shows a flowchart of processing executed in the control circuit 11 of the navigation device 1 when displaying a map of an underground building as described above. This flowchart is always executed when the map screen is displayed in the navigation device 1.

  In step S10, a map for a predetermined map range such as the vicinity of the vehicle position is displayed on the display monitor 16. Here, either a planar map or a bird's-eye view map is displayed according to the user's selection result. In the next step S20, based on the map data recorded on the DVD-ROM 19, it is determined whether there is an underground building within the currently displayed map range. If there is no underground building within the map range, the process stays at step S20, and if there is an underground building within the map range, the process proceeds to step S30. In addition, the information of the underground building which is the object of the determination at this time is recorded in the map data, and the underground building can display the map.

  In step S30, an underground display switching button is displayed on the display monitor 16. The display switching button displayed at this time corresponds to an operation of displaying a map of the underground building, and the name of the underground building and the characters “display” are attached. Thereby, as shown in FIG. 2 or FIG. 4, the underground display switching button 21 is displayed on the map screen. When a plurality of underground buildings exist in the map range, an underground display switching button may be displayed for each of the underground buildings. Alternatively, only one underground display switching button may be displayed, and the names of a plurality of underground structures may be written there.

  In step S40, it is determined whether or not the underground display switching button displayed in step S30 has been selected by an operation of the input device 17 or a touch panel operation by the user. If the underground display switching button is selected, the process proceeds to step S50, and if not selected, the process proceeds to step S70.

  When the process proceeds from step S40 to step S50, in step S50, a map of the underground building existing within the map range is displayed on the map screen displayed on the display monitor 16. Thereby, a map screen as shown in FIG. 3 or FIG. 5 is displayed. As described above, when the underground display switching button is displayed for each of the plurality of underground buildings in step S30, the selected underground display switching button is selected from the plurality of underground display switching buttons. Display only the map of the underground structure.

  In step S60, the underground display switching button is changed from the display side to the non-display side. At this time, the character of “display” attached to the underground display switching button is changed to “non-display”, and the underground display switching button corresponds to an operation to hide the map of the underground building. Thereby, as shown in FIGS. 2 to 3 or FIGS. 4 to 5, the display of the underground display switching button 21 is changed. After step S60 is executed, the process proceeds to step S90.

  On the other hand, when the process proceeds from step S40 to step S70, in step S70, whether or not the underground building determined to exist in the map range in step S20 has become out of the map range due to the movement of the host vehicle or the scrolling of the map. Determine. If it is outside the map range, the process proceeds to step S80. On the other hand, if it is not outside the map range, that is, if the underground building is still within the map range, the process returns to step S40.

  In step S80, the underground display switching button displayed in step S30 is deleted from the display monitor 16. As described above, when the underground display switching button is displayed for each of the plurality of underground buildings in step S30, among the plurality of underground display switching buttons, the underground structure outside the map range is displayed. Delete only the corresponding underground display switching button. In addition, when the names of multiple underground structures are listed together on one underground display switching button, instead of deleting the underground display switching button, the underground structures that are out of the map range of the multiple underground structures are deleted. Delete the name from the underground display switching button. After step S80 is executed, the process returns to step S20.

  In step S90, it is determined whether or not the underground display switching button switched to the non-display side in step S60 has been selected by an operation of the input device 17 or a touch panel operation by the user. If the underground display switching button is selected, the process proceeds to step S100, and if not selected, the process proceeds to step S120.

  When the process proceeds from step S90 to step S100, in step S100, the map of the underground building displayed in step S50 is deleted from the map screen. As a result, the map screen as shown in FIG. 3 or 5 returns to the map screen as shown in FIG. 2 or FIG. As described above, in step S30, an underground display switching button is displayed for each of the plurality of underground buildings, and a map of a plurality of underground structures corresponding to any of the plurality of underground display switching buttons is displayed. If displayed in S50, only the map of the underground structure corresponding to the selected underground display switching button is deleted.

  In step S110, the underground display switching button is changed from the non-display side to the display side. At this time, the character “non-display” attached to the underground display switching button is changed to “display”, and the underground display switching button corresponds to an operation of displaying a map of the underground building. Thereby, as shown in FIGS. 3 to 2 or FIGS. 5 to 4, the display of the underground display switching button 21 is changed. If step S110 is performed, it will return to step S40 and will repeat the process demonstrated above.

  On the other hand, when the process proceeds from step S90 to step S120, in step S120, as in step S70, the underground structure determined to be present in the map range in step S20 is moved to the map range by moving the own vehicle or scrolling the map. It is determined whether it is outside. If it is outside the map range, the process proceeds to step S130. On the other hand, if it is not outside the map range, that is, if the underground building is still within the map range, the process returns to step S90.

  In step S130, as in step S80, the underground display switching button displayed in step S30 is deleted from the display monitor 16. If step S130 is performed, it will return to step S20.

According to the embodiment described above, the following operational effects can be obtained.
(1) A map screen is displayed on the display monitor 16 (step S10), and it is determined whether or not there is an underground building within the map range of the map screen (step S20). If it is determined that there is an underground structure within the map range, an underground display switching button for displaying a map of the underground structure is displayed on the display monitor 16 (step S30). When this underground display switching button is selected by the user (step S40), a map of the underground structure is displayed on the map screen accordingly (step S50). Since it did in this way, according to a user's wish, the presence or absence of the map display of an underground building can be switched easily.

(2) When the underground display switching button is selected again by the user while the map of the underground structure is displayed on the map screen (step S90), the map of the underground structure is deleted (step S100). It was decided. Since it did in this way, when a user no longer wants to display the map of the underground building after displaying the map of the underground building, the map of the underground building can be immediately deleted accordingly.

(3) When the map of the underground structure is displayed on the map screen, the underground display switching button is changed to the non-display side (step S60). Further, when the map of the underground structure is deleted from the map screen, the underground display switching button is changed to the display side (step S110). This changes the display mode of the underground display switching button between when the map of the underground building is displayed on the map screen and when the map of the underground building is not displayed on the map screen. did. As a result, the displayed underground display switching button can be used to indicate to the user whether the operation of displaying the map of the underground structure or the operation of hiding the map of the underground structure is supported. It can be judged at a glance.

(4) When displaying the underground display switching button in step S30, since the underground display switching button with the name of the underground building is displayed, the user can display the map of the underground building based on this. Whether or not to display can be determined.

  In the above embodiment, an example of a navigation device that sets a destination and guides the vehicle to the destination has been described. However, the present invention can also be applied to an in-vehicle map display device other than the navigation device. it can. That is, the present invention can be applied to various devices as long as the device is mounted on a vehicle and displays a map screen for a predetermined map range.

  The embodiments and modifications described above are merely examples, and the present invention is not limited to these contents as long as the features of the invention are not impaired.

It is a block diagram which shows the structure of the navigation apparatus by one Embodiment of this invention. It is an example of a plane map screen when the map of an underground building is not displayed. It is an example of a plane map screen when the map of an underground building is displayed. It is an example of a bird's-eye view map screen when the map of an underground building is not displayed. It is an example of a bird's-eye view map screen when the map of an underground building is displayed. It is a flowchart of the process performed when displaying the map of an underground building.

Explanation of symbols

1: Navigation device 11: Control circuit 12: ROM 13: RAM
14: Current location detection device 15: Image memory 16: Display monitor 17: Input device 18: Disk drive 19: DVD-ROM
21: Underground display switching button 22: Underground city map

Claims (6)

Map display control means for displaying a map screen on a display monitor for a predetermined map range;
An underground building determination unit that determines whether or not there is an underground building within the map range of the map screen displayed by the map display control unit;
Button display control means for displaying an underground display switching button on the display monitor for displaying a map of the underground building determined to be within the map range by the underground building determination means,
Underground building display control means for displaying a map of the underground building on the map screen when the user selects the underground display switching button displayed by the button display control means. A vehicle-mounted map display device as a feature. The in-vehicle map display device according to claim 1,
When the underground display switching button is again selected by the user while the map of the underground building is being displayed on the map screen, the underground building display control means erases the map of the underground building. An on-vehicle map display device characterized by: The in-vehicle map display device according to claim 2,
The button display control means switches the underground display between when the map of the underground building is displayed on the map screen and when the map of the underground building is not displayed on the map screen. An on-vehicle map display device that changes a display form of a button. The in-vehicle map display device according to any one of claims 1 to 3,
The on-vehicle map display device, wherein the button display control means displays an underground display switching button to which the name of the underground building is attached. In the in-vehicle map display device according to any one of claims 1 to 4,
The in-vehicle map display device, wherein the underground structure includes at least an underground shopping center and an underground parking lot. On-vehicle map display device according to any one of claims 1 to 5,
A current location detecting means for detecting the current location of the vehicle,
The navigation apparatus characterized in that the map display control means displays a map screen around the current location of the vehicle detected by the current location detection means.

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