JP2002039778A - Navigation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation system by which a user can display or cannot display a desired landmark easily on a map image. SOLUTION: When the landmark of a convenience store and that of a gasoline station are already selected by a menu so as to be displayed on a display screen DP, they are preset by pressing down a preset key PK for a definite time. After they have been preset, the landmark of the convenience store and that of the gasoline station are changed over so as to be displayed (a) or so as not to be displayed (b) whenever the preset key PK is pressed.

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 which displays a road map on a display means and superimposes landmarks indicating various facilities.

[0002]

2. Description of the Related Art A navigation device that provides guidance for driving a vehicle so that a driver can reach a desired destination is provided by a navigation device.
The position of the vehicle is detected, map data around the vehicle position is read out from a storage medium such as a DVD-ROM, a map image is drawn on a display screen, and the vehicle position is displayed at a predetermined position on a landmark or a map image representing various facilities. Draw with the mark superimposed.

[0003]

However, in the conventional navigation device, when a user wants to display a landmark on a map image, a menu screen for selecting the landmark is opened by several operation processes, and many landmarks are displayed. There is an annoyance that a desired landmark must be selected from the following. Further, if the user adds a desired landmark unnecessarily, many landmarks are displayed on the map image, and there is a problem that it takes time to find the desired landmark. Further, when a large number of landmarks are displayed, FIG.
As shown in (1), for example, there is a problem that a landmark of a parking lot near the same point and a landmark of a gas station overlap, which makes it difficult to see. Accordingly, an object of the present invention is to provide a navigation device that allows a user to easily display / hide a desired landmark on a map image.

[0004]

According to the present invention, there is provided a display device for displaying a road map, a storage device for storing landmarks indicating facilities and the like, Selecting means for selecting a landmark that is present, wherein the navigation device displays the landmark selected by the selecting means at a predetermined position on the road map displayed by the display means,
Preset means capable of storing / reading a desired landmark from the landmarks stored in the storage means in association with the preset key, and displayed at a predetermined position on a road map by operating the preset key. Display / Hide the display / non-display of the landmark
This is achieved by providing non-display switching means.

Further, according to the present invention, the selecting means includes a batch selecting means for collectively selecting a plurality of landmarks from the landmarks stored in the storage means, Is achieved by providing the preset key with batch presetting means for presetting the landmarks selected collectively.

[0006]

(A) Schematic explanation of the present invention FIG. 1 is a schematic explanatory view of the present invention, and shows a display example in a case where landmarks to be displayed are a convenience store and a gas station. 27 is a display device for displaying a map or the position of the own vehicle, DP is a display screen of the display device 27, PK is a preset key for presetting a desired landmark and switching display / non-display of the landmark, and CM is a display key of the own vehicle. It is a vehicle position mark indicating the current position.

As shown in FIG. 1A, landmarks of convenience stores and gas stations are already selected and displayed on the display screen DP. Here, the landmarks of the convenience store and the gas station are preset by pressing the preset key PK for a certain period of time. After the preset, each time the preset key PK is pressed, the landmarks of the convenience store and the gas station can be switched between display (FIG. 1A) and non-display (FIG. 1B).

(B) First Embodiment of the Present Invention (a) Configuration of Navigation Device of First Embodiment of the Present Invention FIG. 2 is a configuration diagram of a navigation device of a first embodiment of the present invention. In the figure, reference numeral 11 denotes a map storage medium for storing map information and landmarks, for example, a DVD-ROM;
DVD-ROM that controls reading of map information from D-ROM
A ROM control unit 13 is a vehicle position measuring device that measures the current position of the vehicle, and a vehicle speed sensor that detects a moving distance.
Angular velocity sensor, GPS receiver,
It is composed of a position calculation CPU and the like. 14 is DVD-
A map information memory for storing map information read from the ROM 11, a remote controller 15 for performing menu selection operations, enlargement / reduction operations, and the like, and a remote controller interface 16 are provided.

Reference numeral 17 denotes a processor (CPU) for controlling the entire navigation apparatus, 18 a ROM for storing various programs such as a landmark display program and a guidance route search processing program, 19 a RAM for storing processing results of the various programs, 20 Is a landmark preset control unit that controls presetting of landmarks, and also controls display / non-display switching of landmarks. The configuration includes a landmark preset storage unit 20a for storing desired landmarks to be displayed, and a landmark preset switching unit 20b for switching display of landmarks stored in the storage unit 20a.

Reference numeral 21 denotes a map image generating unit for generating a map image; 22, a video RAM for storing the map image generated by the map image generating unit 21; and 23, a selection of a landmark genre such as a convenience store or a gas station. A menu image generating unit 24 for generating various menu images for use is a guidance route generating unit, which uses the processing result of the guidance route search processing program stored in the RAM 19. Reference numeral 25 denotes a mark generation unit such as a vehicle position mark or a selected landmark; 26, an image synthesis unit that synthesizes and outputs various images; and 27, a display device that displays an image output from the image synthesis unit 26. And a preset key 27a for presetting a landmark. 28 is a bus.

(B) Data structure of landmark according to the first embodiment of the present invention FIG. 3 is an example of data structure of a landmark according to the first embodiment of the present invention. First, the genre is a convenience store in the pointer 1 as shown in FIG.
Landmarks of types 001, 002, 003, and 004 are stored. Further, as shown in (b), a name and image data are stored for each type. For example, the type is 001, the name is Seven-Eleven, and the image data is IMG1. That is, it has a hierarchical structure. And the landmark preset storage unit 20
As shown in (c), pointer a corresponding to each preset key of the preset key 27a is stored in a.
For example, the preset key No. Since 1 corresponds to 1 and 3 pointers, the convenience store of the pointer 1 and the fast food landmark of the pointer 3 correspond to the configuration shown in FIG.

(C-1) Flowchart of the Preset Operation of the First Embodiment of the Present Invention FIG. 4 is a flowchart of the preset operation of the first embodiment of the present invention. 27 shows a process for storing the information corresponding to 27a. First, the preset key 27a
Is pressed for a predetermined time, for example, 5 seconds, the landmark preset control unit 20 determines (step 101)
If not pressed for more than 5 seconds, a landmark corresponding to the pressed preset key 27a is displayed (step 102). On the other hand, when pressed, the processor 1 determines whether or not the landmark is currently displayed on the display device 27.
7 (step 103), and if no landmark is displayed, the process is terminated. On the other hand, when the landmark is displayed, the landmark preset control unit 20 stores the displayed landmark in the landmark preset storage unit 20a in association with the preset key 27a (step 104).

(C-2) Flowchart of Preset Key Pressing Operation of the First Embodiment of the Present Invention FIG. 5 is a flowchart of the preset key pressing operation of the first embodiment of the present invention, in which a landmark corresponding to the preset key 27a is displayed. The process of displaying on a map image is shown. First, the landmark preset control section 20 determines whether or not the preset key 27a has been pressed (step 201). If not, the landmark preset control section 20 waits without performing any processing. On the other hand, when the preset key 27a is pressed,
It is confirmed what number of the preset key has been pressed (step 202), and then the processor 17 determines whether or not a landmark corresponding to the confirmed preset key number is displayed on the display device 27 (step 202). Step 20
3). Next, when the landmark is not displayed, the landmark corresponding to the pressed preset key 27a is read out from the landmark preset storage unit 20a by the landmark preset switching unit 20b, switched to the readout landmark, and displayed on the display device 27. (Step 20
4). On the other hand, when a landmark is displayed, the landmark controller 20 presses the pressed preset key 27a.
Is determined as a preset key corresponding to the currently displayed landmark (step 205), and if it is not a corresponding key, the process of step 204 is performed. on the other hand,
In the case of the corresponding key, the landmark control unit 20 hides the currently displayed landmark (step 2).
06).

(B) Second Embodiment of the Present Invention (a) Flowchart of a Preset Operation of a Second Embodiment of the Present Invention FIG. 6 is a flowchart of a preset operation of a second embodiment of the present invention. A process for storing a plurality of types of landmarks other than the set landmarks collectively in association with the preset key 27a is shown. The configuration of the navigation device is the same as in FIG. 3, and the data configuration of the landmark is the same as in FIG.

First, "change" is selected from the menu screen (FIG. 7 (a)) to select a desired landmark, and then "change display genre" is displayed from the menu screen (FIG. 7 (b)) displayed. Is selected, a selection screen for selecting a desired landmark is displayed as shown in FIG. 7 (c).

Next, the processor 17 determines whether or not a plurality of types of landmarks, for example, a convenience store and a gas station, have been selected at once from a selection screen for a desired landmark (FIG. 7C). (Step 30
1) If not selected, the process waits without performing the process.
On the other hand, if the selected convenience store and gas station landmark are selected at the same time (FIG. 7).
(D)) is displayed on the display device 27 (step 30).
2). Next, the landmark preset control unit 20 determines whether or not the preset key 27a has been pressed for a predetermined time, for example, 5 seconds (step 303). If the preset key 27a has not been pressed, the process ends. On the other hand, when the button is pressed, the landmark preset control unit 20 stores the landmarks of the convenience store and the gas station which are collectively selected in the landmark preset storage unit 20a in the preset key 27.
is stored in correspondence with a (step 304). In the embodiment, the display device 27 is provided with the preset key 27a, but the preset key may be provided on the remote controller 15.

[0017]

As described above, according to the present invention, display means for displaying a road map, storage means for storing landmarks indicating facilities and the like, and landmarks stored in the storage means are selected. A navigation device for displaying a landmark selected by the selection device at a predetermined position on the road map displayed by the display device, wherein a preset key and a land stored in the storage device are provided. Preset means for storing / reading a desired landmark from the marks corresponding to the preset key, and switching between display / non-display of a landmark displayed at a predetermined position on a road map by operating the preset key. With the display / non-display switching means enabled, the user can place a desired landmark on the map image depending on the situation. Easy to hide / it can be displayed.

Further, according to the present invention, the selecting means includes a batch selecting means for collectively selecting a plurality of landmarks from the landmarks stored in the storage means, and the presetting means comprises: Since the key is provided with the batch presetting means for presetting the landmarks selected collectively, the user does not need to preset desired landmarks one by one to the preset key.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory diagram of the present invention.

FIG. 2 is an explanatory diagram of a configuration of a navigation device according to a first embodiment of the present invention.

FIG. 3 is a data configuration of a landmark according to the first embodiment of the present invention.

FIG. 4 is a flowchart of a preset operation according to the first embodiment of the present invention.

FIG. 5 is a flowchart of a preset key pressing operation according to the first embodiment of the present invention.

FIG. 6 is a flowchart of a preset operation according to the first embodiment of the present invention.

FIG. 7 is an explanatory diagram of a procedure for collectively storing landmarks.

FIG. 8 is an example of a conventional landmark display.

[Explanation of symbols]

 27 ・ ・ Display device PK ・ ・ Preset key

Claims (2)

[Claims] A display means for displaying a road map; a storage means for storing landmarks indicating facilities and the like; and a selection means for selecting a landmark stored in the storage means. A navigation device for displaying a landmark selected by said selection means at a predetermined position on a road map displayed by a display means, comprising: a preset key; and a desired landmark among landmarks stored in said storage means. A preset means capable of storing / reading in correspondence with the preset key, and a display / non-display switchable to switch a display / non-display of a landmark displayed at a predetermined position on a road map by operating the preset key. And a navigation device. 2. The navigation device according to claim 1, wherein the selection unit includes a batch selection unit that collectively selects a plurality of landmarks from landmarks stored in the storage unit, and the preset unit includes: And a batch presetting means for presetting the landmarks selected collectively on the preset key.