JP2001041762A - Navigation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operable navigation system hardly causing an error in the selection of a hierarchical candidate for address retrieval. SOLUTION: This navigation device displays a map screen on a display device or a self-position mark together with the map screen thereon from the present position determined by a self-position arithmetic device and the map data read by a recording medium reader. When hierarchical candidates are successively displayed on the display device for address retrieval on the map and determined by moving a cursor, the map of the hierarchical candidate to which the cursor is moved is displayed on the display device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device and, more particularly, to a navigation device capable of performing an address search for designating point registration or the like without erroneous operation.

[0002]

2. Description of the Related Art An on-vehicle navigation device for displaying a map screen or a position of a vehicle on a map screen on a display device based on a current position obtained by a vehicle position calculation device and map data read by a recording medium reading device, and guiding driving. It has been known. In such a vehicle-mounted navigation device, an address search is performed to set a destination and the like.

The operation of an address search in a conventional navigation device will be described with reference to FIGS. The address search is performed by sequentially determining hierarchical candidates, such as prefectures, cities, and wards, as shown in FIGS.

When an address search is started, first, in step S1, a prefecture is selected. In the prefecture selection, the screen shown in FIG. 6A is drawn on the display device. On this screen, move the cursor indicated by the arrow to Osaka Prefecture and press the execution key to select Osaka Prefecture.

Next, in step S2, a municipal office in Osaka Prefecture is selected. In the municipal selection, the screen shown in FIG. 6B is drawn on the display device. When the cursor indicated by the arrow is moved to Osaka City on this screen and the execution key is pressed, Osaka City is selected. FIGS. 6A and 7C show screens for selecting a city, and the cities of the hierarchy candidates are scrolled as shown in FIG.
As shown in (a), towns and villages appear. Then, when the cursor indicated by the arrow is moved to Izumi-cho and the execution key is pressed, Izumi-cho is selected as shown in FIG. 7B.

Next, in step S3, a ward of Osaka city is selected. In the section selection, a screen shown in FIG. 6C is drawn on the display device. When the cursor indicated by the arrow is moved to Abeno-ku on this screen and the execution key is pressed, Abeno-ku is selected. When Abeno-ku is selected, in step S4 FIG.
The selected map screen is displayed as shown in (d).

[0007]

In the above-mentioned conventional on-vehicle navigation device, there is a problem that selection of a hierarchy candidate for address search is apt to be erroneous because character information such as a place name is displayed.

[0008] The present invention has been made in view of the above points, and it is an object of the present invention to provide a navigation device which is less likely to cause an error in selecting a hierarchy candidate for an address search and has good operability. Is to do.

[0009]

A navigation device according to the present invention displays a map screen or a self-position mark together with a map screen on a display device from a current position obtained by a self-position calculation device and map data read by a recording medium reading device. In the navigation apparatus, when sequentially displaying hierarchy candidates on the display device for address search on a map and moving and determining a cursor, a map of the hierarchy candidate to which the cursor is moved is displayed on the display device. It is what was constituted.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An on-vehicle navigation device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a vehicle-mounted navigation device according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a main controller composed of a microcomputer or the like, which controls the entire apparatus.

Reference numeral 2 denotes an own-vehicle position processing device, which comprises an autonomous navigation sensor 2a such as a speed sensor and a direction sensor, a GPS (global positioning, system) receiver 2b, and an own-vehicle position calculating device 2c. Calculation is performed and the data is output to the main controller 1.

The map database 3 is composed of a CD-ROM or the like, and stores a plurality of types of map data of different scales for the same area. The recording medium reading device 4 reads map data of an area designated by the main controller 1 from the map database 3 and supplies the map data to the main controller 1. The main memory 5 stores a plurality of types of map data supplied from the main controller 1 and having different scales.

The input device 6 includes a touch panel, a remote controller, and keys, and performs initial settings such as a current position and a destination before or during use of the device, activates the device, and changes the scale of the map screen.

The video processing device 7 comprises a graphic controller 7a, a video RAM 7b and a display device 7c. The graphic controller 7a expands and stores the map screen data calculated by the main controller 1 from the map data and the recommended route data calculated by the main controller 1 in the video RAM 7b, and stores the map screen data in the RAM 7b on a display device 7c such as an LCD. Display.

The display device 7c also serves as a touch panel as an input device. The voice output device 8 outputs a voice guide message as appropriate according to a command from the main controller 1.

The operation of the address search in the on-vehicle navigation device having the above configuration will be described with reference to FIGS. The address search is performed by sequentially determining hierarchical candidates, such as prefectures, cities, and wards, as shown in FIGS. When the address search is started, first, in step S
At 11, a prefecture is selected. In the prefecture selection, the screen shown in FIG. 3A is drawn on the display device.

In the screen shown in FIG. 3A, a cursor indicated by an arrow points to Tokyo, and a map of Tokyo is displayed. FIG. 4A shows a specific example of the map display. When the cursor is moved to Osaka Prefecture from this screen as shown in FIG. 3B, a map of Osaka Prefecture is displayed on the left side of the screen. Pressing the execution key in this state selects Osaka Prefecture.

Next, in step S12, a municipal office in Osaka Prefecture is selected. In the municipal selection, the screen shown in FIG. 3C is drawn on the display device. When the cursor indicated by an arrow is moved to Osaka City on this screen, a map of Osaka City is displayed on the left side of the screen. Pressing the execution key in this state selects Osaka City.

FIG. 3 (c) shows a screen for selecting a city, but the cities of the hierarchy candidates are scrolled so that towns and villages appear as shown in FIG. 4 (b). Then, by moving the cursor indicated by the arrow to Izumi-cho and pressing the execution key, Izumi-cho is selected.

Next, in step S13, a ward of Osaka city is selected. In the section selection, the screen shown in FIG. 3D is drawn on the display device. When a cursor indicated by an arrow is moved to Abeno-ku on this screen, a map of Abeno-ku is displayed on the left side of the screen.

Pressing the execution key in this state selects Abeno-ku. Although not shown, when Abeno-ku is selected, a map of Abeno-ku is displayed on the entire screen, and the destination can be set by moving the pointer.

[0022]

According to the navigation apparatus of the present invention, an error is less likely to occur in selecting a hierarchical candidate for an address search, and operability is improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an in-vehicle navigation device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the on-vehicle navigation device.

FIG. 3 is a diagram showing a display screen in the same operation.

FIG. 4 is a diagram showing a display screen in the same operation.

FIG. 5 is a flowchart showing the operation of a conventional vehicle-mounted navigation device.

FIG. 6 is a diagram showing a display screen in the same operation.

FIG. 7 is a diagram showing another example of the display screen in the same operation.

[Explanation of symbols]

Reference Signs List 1 main controller 2 own vehicle position processing device, 2a autonomous navigation sensor, 2b
GPS receiver, 2c own vehicle position calculation device 3 Map database 4 Recording medium reading device 5 Main storage memory 6 Input device 7 Image processing device, 7a Graphic controller, 7
b Video RAM, 7c Display device 8 Audio output device

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2F029 AA02 AC02 AC14 AC18 AC19 AD07 5E501 AA23 AC03 BA02 BA05 CA08 CB03 CB05 CC02 EB05 FA02 FA14 FB22 FB32 5H180 AA01 BB13 FF04 FF05 FF22 FF25 FF27 FF33 FF40

Claims (1)

[Claims] 1. A navigation device for displaying a map screen or a self-position mark together with a map screen on a display device from a current position obtained by a self-position calculation device and map data read by a recording medium reading device. Therefore, a navigation device configured to sequentially display hierarchical candidates on the display device and move the cursor to determine the hierarchical candidate on the display device so as to display a map of the hierarchical candidate to which the cursor has been moved.