JP4783075B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation device that displays various facilities on a map using icons.

  2. Description of the Related Art Navigation devices that display various facility positions on a map in an easy-to-understand manner by displaying different facility icons for each facility classification on a map are widely known. In such a navigation device, when a plurality of types of facility icons overlap, if the cursor is moved to that position, only one type of facility icon is displayed preferentially, and other types of facility icons are erased. Is known (Patent Document 1).

JP 2002-98544 A

  In the navigation device disclosed in Patent Document 1, it is necessary for the user to set in advance the types of facility icons to be preferentially displayed. Such setting is performed on a setup screen different from the map screen. Therefore, in order to switch the type of facility icon to be displayed, the display screen must be changed from the map screen to the setup screen each time, which is troublesome for the user.

In the navigation device that displays a map screen and displays a plurality of types of facility icons different for each facility classification on the map screen, the icon switching for accepting a switching operation input from the user to the facility icon Icon display means for detecting an operation of the button , and icon display switching means for switching the type of facility icon to be displayed when an operation of the icon switching button is detected by the operation detecting means while the map screen is displayed. The switching means hides all types of facility icons and hides all types of facility icons when an operation of the icon switching button is detected by the operation detection means when all types of facility icons are displayed. Sometimes, when the operation detection means detects the operation of the icon switching button, any one type of facility icon If only one of the facility icons is displayed and the operation detection unit detects the operation of the icon switching button, only one of the facility icons different from the facility icon is displayed. When the number of times that the operation of the icon switching button is detected by the operation detecting means reaches a predetermined display switching number, all types of facility icons are displayed, and the types of facility icons to be displayed are displayed. A value obtained by adding 2 to the number is set as the display switching frequency .
The invention of claim 2 further comprises setting means for presetting whether or not to display a facility icon for each facility classification in the navigation device of claim 1 , wherein the icon display switching means is operated by a user operating an icon switching button. Each time, the facility icons that have been displayed and set in advance by the setting means are sequentially displayed one by one.
According to a third aspect of the present invention, in the navigation device of the second aspect , the icon display switching means has one type of facility icon that has been displayed and set in advance by the display setting means, except for a type of facility icon that does not exist within the map screen range. They are displayed in order.

  According to the present invention, in the navigation device that displays the positions of various facilities on the map by the facility icons, the types of facility icons to be displayed by simple operation without changing the display screen from the map screen to the setup screen Can be switched.

  A configuration of a navigation apparatus according to an embodiment of the present invention is shown in FIG. This navigation device is mounted on a vehicle and displays various facilities on a map using facility icons that differ for each facility classification. 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. In the control circuit 11, a facility icon display switching process as described later, a recommended route searching process to a set destination, and the like are performed based on the map data recorded on the DVD-ROM 19.

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

  The image memory 15 temporarily stores image data to be displayed on the display monitor 16. The image data includes map drawing data for displaying a map, various graphic data, and the like, and is created by the control circuit 11 based on the map data recorded on the DVD-ROM 19. A map is displayed on the display monitor 16 using the image data stored in the image memory 15, and various facility icons for representing various facilities are displayed on the map.

  The input device 17 includes various input switches for the user to perform various operation inputs such as destination setting for searching for a recommended route. The input device 17 is realized by an operation panel, a remote controller, or the like. The user can cause the navigation device 1 to execute various processes by appropriately operating the input device 17 in accordance with a screen instruction displayed on the display monitor 16.

  The disk drive 18 reads map data from the loaded DVD-ROM 19. 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 recommended route, such as intersection name and road name, and road data representing the road. Etc. are included. The map data also includes background data representing map shapes other than roads such as rivers and railways. This map data also includes data representing the type of icon and the display position on the map.

  In the road data, the minimum unit representing a road section is called a link, and each road is composed of a plurality of links. A point connecting the links is called a node, and each node has position information (coordinate information). The link shape, that is, the shape of the road is determined based on the position information of the node. Although an example using a DVD-ROM is described here, the map data may be read from a recording medium other than the DVD-ROM, such as a CD-ROM or a hard disk.

  When the user operates the input device 17 to set the destination, 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 above-described 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 recognize the recommended route on the map 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. Thus, route guidance to the destination is performed by displaying the map and guiding the vehicle to the destination according to the recommended route.

  An example of the map screen displayed on the display monitor 16 in the navigation device 1 is shown in FIG. In this screen, a vehicle position mark 21 representing the vehicle position is displayed on the recommended route, and facility icons 31 to 39 representing various facilities for each facility classification are displayed on the map. The facility icon 31 represents a parking lot. Facility icons 32, 33, and 34 represent convenience stores. The facility icons 35, 36 and 37 represent family restaurants. Facility icons 38 and 39 represent financial institutions such as banks. Note that the user can set in advance whether or not to display a facility icon for each facility classification on a setup screen different from the map screen. In this way, all types of facility icons that have been displayed and set in advance are displayed on the screen of FIG.

  In addition, an icon switching button 22 is displayed on the screen of FIG. When the icon switching button 22 is selected by the user by a touch panel operation or a remote control operation using the input device 17, a facility icon display switching process as described below is executed, and the types of facility icons displayed on the map Is switched.

  When the icon switching button 22 is pressed on the screen of FIG. 2, the screen is first switched to the screen of FIG. In the screen of FIG. 3, all the facility icons 31 to 39 displayed on the screen of FIG. 2 are not displayed. Thus, when the icon switching button 22 is pressed once, all types of facility icons are hidden.

  When the icon switching button 22 is pressed while the screen of FIG. 3 is displayed, the screen is switched to the screen of FIG. 4 next. In the screen of FIG. 4, only the parking facility icon 31 is displayed among the facility icons 31 to 39 of FIG. 2. Thus, when the icon switching button 22 is pressed twice, only one type of facility icon is displayed.

  When the icon switching button 22 is pressed while the screen of FIG. 4 is displayed, the screen is switched to the screen of FIG. In the screen of FIG. 5, only the convenience store facility icons 32 to 34 among the facility icons 31 to 39 of FIG. 2 are displayed. Note that the parking facility icon 31 displayed on the screen of FIG. 4 is deleted by switching to the screen of FIG. In this way, when the icon switching button 22 is pressed three times, a different type of facility icon is displayed.

  When the icon switching button 22 is pressed while the screen of FIG. 5 is displayed, the screen is switched to the screen of FIG. In the screen of FIG. 6, only the facility icons 35-37 of the family restaurant are displayed among the facility icons 31-39 of FIG. Note that the convenience store facility icons 32 to 34 displayed on the screen of FIG. 5 are deleted by switching to the screen of FIG. 6. In this way, when the icon switching button 22 is pressed four times, a different type of facility icon is displayed.

  When the icon switching button 22 is pressed while the screen of FIG. 6 is displayed, the screen is then switched to the screen of FIG. In the screen of FIG. 7, only the facility icons 38 and 39 of the financial institution are displayed among the facility icons 31 to 39 of FIG. The facility icons 35-37 of the family restaurant displayed on the screen of FIG. 6 are deleted by switching to the screen of FIG. Thus, when the icon switching button 22 is pressed five times, the remaining facility icons are displayed.

  When the icon switching button 22 is pressed while the screen of FIG. 7 is displayed, the screen returns to the screen of FIG. 2 and all the facility icons 31 to 39 are displayed. Thus, when the icon switching button 22 is pressed six times, all types of facility icons are displayed again. As described above, each time the icon switching button 22 is pressed, the type of facility icon to be displayed is switched. First, all types of facility icons are displayed on the screen of FIG. 2, and then all types of facility icons are hidden on the screen of FIG. Thereafter, the facility icons are displayed one by one in order on the screens of FIGS.

  In addition, in the screens of FIGS. 4 to 7, the facility icons that are displayed and set in advance for each facility classification on the setup screen are sequentially displayed for each type as described above. However, even if the facility icon is set for display, it may not exist within the range of the map screen. When switching to such a facility icon, it is preferable to notify the user by displaying a pop-up message indicating that the corresponding facility icon does not exist on the map. Or you may switch the kind of facility icon to display except the facility icon which does not exist in the range of a map screen. In this way, it is possible to avoid an unnecessary increase in the number of display switching times.

  In addition, the order in which the facility icons are displayed one by one as described above may be determined in advance, or may be set by the user on the setup screen. Furthermore, you may determine according to the total number for every kind of facility icon in a map screen, a positional relationship with the own vehicle, etc. For example, you may display in order from the thing with many facility icons of the same kind in a map screen, and you may display in order from the facility icon near the own vehicle position.

  A flowchart for executing the facility icon display switching process described above is shown in FIG. This flowchart is executed by the control circuit 11. In step S10, the number of map screen display switching is set based on the number of types of facility icons set for display. For example, when the four types of facility icons 31 to 39 are set as described above, the screens of FIGS. 4 to 7 each displaying the four types of facility icons and the screen of FIG. 2 displaying all the types. In order to switch the screen of FIG. 3 in which all types are hidden and a total of six types of map screens, the number of display switching is set to six. When the map screen display switching count is thus set, the process proceeds to the next step S20.

  In step S20, all types of facility icons displayed and set in advance on the setup screen are displayed on the map. Thereby, the map screen of FIG. 2 is displayed. In the next step S30, it is determined whether or not the icon switching button 22 has been pressed by a user operation. When the icon switching button 22 is pressed, the process proceeds to the next step S40.

  In step S40, the types of facility icons to be displayed are switched to hide all types of facility icons. Thereby, the map screen of FIG. 3 is displayed. In the next step S50, it is determined whether or not the icon switching button 22 has been pressed by a user operation. When the icon switching button 22 is pressed, the process proceeds to the next step S60.

  In step S60, the type of facility icon to be displayed is switched to display only one type of facility icon. Thereby, the map screen of FIG. 4 is displayed. In the next step S70, it is determined whether or not the icon switching button 22 has been pressed by a user operation. If the icon switching button 22 is pressed, the process proceeds to the next step S80.

  In step S80, it is determined whether or not the number of times the user has pressed the icon switching button 22 has reached the display switching number set in step S10. If the number of display switching times has not yet been reached, the process proceeds to step S90, the facility icon type displayed in step S90 is switched, and then the process returns to step S60. Thereby, each time the icon switching button 22 is pressed, the map screens of FIGS. 4 to 7 are switched and displayed. On the other hand, when the number of times the switch button 22 is pressed reaches the number of display switches, the process returns to step S20. Thereby, after the map screen of FIG. 7 is displayed, it returns to the map screen of FIG.

According to the embodiment described above, the following operational effects can be obtained.
(1) When the icon switch button 22 is operated by the user while the map screen is displayed, the type of facility icon displayed on the map screen is switched, so the display screen is changed from the map screen to the setup screen. Without switching, the type of facility icon to be displayed can be switched with a simple operation.

(2) When the icon switching button 22 is operated by the user, all types of facility icons are hidden (step S40). Therefore, even on a map screen on which many facility icons are displayed, It can be a map screen that is easy to see quickly with a simple operation.

(3) When the icon switching button 22 is operated by the user, only one type of facility icon is displayed (step S60), so that only the facility icon that the user wants to see is quickly displayed with a simple operation. be able to.

(4) When only one type of facility icon (here, referred to as facility icon A) is displayed, when the user operates the icon switching button 22, the type of icon to be displayed is switched ( By step S90), only one type of facility icon different from the facility icon A (here, the facility icon B is assumed to be displayed) is displayed. Since it did in this way, when a user wants to see a different kind of facility icon, the kind of facility icon can be switched quickly by simple operation.

(5) By repeating the processing of steps S60 to S90, each time the icon switching button 22 is operated by the user, the facility icons set in advance are displayed one by one in order. Since this is done, all types of facility icons can be displayed one by one with a simple operation of simply pressing the icon switching button 22. Further, at this time, if display is performed one by one with the exception of facility icons of types that do not exist in the map screen, it is possible to avoid an unnecessary increase in the number of display switching.

  In the above embodiment, an example has been described in which a total of four types of facility icons of a parking lot, a convenience store, a family restaurant, and a financial institution are displayed in order, but the present invention is not limited to this content. The present invention can be applied to facility icons of arbitrary facility classifications and types. The facility icon is not limited to being displayed based on the map data, but may be displayed based on information from the outside, for example, road traffic information transmitted by beacon or FM multiplex broadcasting.

  In the above embodiment, the icon switching button 22 is realized by the operation button on the screen displayed together with the map screen, but may be realized by a hardware switch provided on the remote control or the operation panel.

  Each embodiment and various 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.

  In the above embodiment, the icon display switching means and the setting means are realized by the processing of the control circuit 11. However, this is merely an example, and when interpreting the invention, the description of the above embodiment and the scope of the claims There is no limitation or restriction on the correspondence between the items described in.

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 map screen displaying all types of facility icons. It is an example of a map screen in which all types of facility icons are hidden. It is an example of the map screen which displayed only the facility icon of the parking lot. It is an example of the map screen which displayed only the facility icon of the convenience store. It is an example of the map screen which displayed only the facility icon of the family restaurant. It is an example of a map screen displaying only facility icons of financial institutions. It is a flowchart of a facility icon display switching process.

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

Claims (3)

In a navigation device that displays a map screen and displays a plurality of types of facility icons different for each facility classification on the map screen,
Operation detecting means for detecting an operation of an icon switching button for accepting a switching operation input from a user for the facility icon;
When an operation of the icon switching button is detected by the operation detecting means during the display of the map screen, an icon display switching means for switching the type of facility icon to be displayed is provided .
The icon display switching means is
When operation of the icon switching button is detected by the operation detection means when all types of facility icons are displayed, all types of facility icons are hidden,
When operation of the icon switching button is detected by the operation detection means when all types of facility icons are hidden, only one type of facility icon is displayed,
When only one type of facility icon is displayed and the operation detection unit detects an operation of the icon switching button, only one type of facility icon different from the facility icon is displayed. Switch the type of facility icon,
When the number of times that the operation of the icon switching button is detected by the operation detecting means reaches a predetermined number of display switching, all types of facility icons are displayed,
A navigation device , wherein a value obtained by adding 2 to the number of types of facility icons to be displayed is set as the number of display switching times . The navigation device according to claim 1 .
It further comprises setting means for presetting whether to display a facility icon for each facility classification,
The icon display switching means displays the facility icons, which are displayed and set in advance by the setting means, one by one in order each time the icon switching button is operated by the user. The navigation device according to claim 2 ,
The navigation apparatus characterized in that the icon display switching means sequentially displays the facility icons displayed and set in advance by the display setting means one by one, except for the types of facility icons that do not exist in the range of the map screen.

Images