JP2002243468A - Navigation device and display method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device and a display method thereof capable of altering the display setting of a landmark by simple operation. SOLUTION: The type of a landmark which a user desires to display on a navigation screen is previously set, and a button for inputting an instruction of display/non-display is set on the navigation screen. In the case that the landmark is not displayed on the navigation screen, the landmark is displayed by pressing the display instruction button set on the screen. In the case that the landmark is displayed on the navigation screen, the landmark is not displayed by pressing the non-display instruction button set on the screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device for detecting a current position and displaying the current position on a display screen, and more particularly to a navigation device for displaying a landmark on a navigation screen and a navigation device. Display method.

[0002]

2. Description of the Related Art Conventionally, in a navigation device mounted on a vehicle to provide a route guide to a destination, various facilities (convenience stores, gas stations, banks, etc.) serving as guides for the route guide are displayed on a navigation screen. The indicated landmark is displayed. The user confirms the current position by confirming the landmarks displayed on the navigation screen and the actual various facilities, and travels on the guidance route. However, if more than necessary landmarks are displayed on the navigation screen, the navigation screen becomes difficult to see, and necessary roads, road names, place names, facility names, landmarks, and the like may be overlooked. Therefore, in a conventional navigation device, a user selects a landmark to be displayed on the navigation screen in advance, and displays only necessary landmarks on the navigation screen.

Hereinafter, a landmark display setting process in a conventional navigation device will be described with reference to a flowchart shown in FIG. 5 and an example of a navigation screen shown in FIG. In the conventional navigation device, a menu key 101a is displayed on the screen (a) shown in FIG.
Is pressed (step S101), a menu selection screen (b) is displayed. Next, when the user presses various setting keys 101b (step S102), various setting screens (c) are displayed. When the user presses the landmark setting key 101c (step S103),
The landmark setting screen (d) is displayed.

When the type of various landmarks to be displayed is selected by the user (step S104), the type of the selected landmark is stored in a memory. For example, on the landmark setting screen (d), the selected convenience store and gas station are stored in the memory. Further, when the setting end key 101i is pressed by the user (step S105), the setting screen is ended, and the selected type of landmark (for example, a convenience store and a gas station) is displayed on the navigation screen (step S106). .

[0005]

However, in such a conventional navigation device, a method of setting a landmark is performed through a plurality of key operations.
It took time and effort to change the landmark settings. For this reason, it is not possible to immediately display the necessary landmarks, and it is not possible to deviate from the guidance route or to immediately hide unnecessary landmarks. There was a problem that road names and place names were difficult to see.

SUMMARY OF THE INVENTION An object of the present invention is to provide a navigation device and a display method for a navigation device that change the display setting of a landmark by a simple operation.

[0007]

According to the first aspect of the present invention,
A landmark display instruction input means for inputting an instruction to display a landmark on the display screen in a navigation device (for example, the navigation device 1 shown in FIG. 1) which detects the current position and displays the current position on the display screen. (For example, a display instruction button 3a shown in FIG. 3),
A landmark is displayed on the display screen when a landmark display instruction is input by the landmark display instruction input means.

According to the first aspect of the present invention, in the navigation device for detecting the current position and displaying the current position on the display screen, the landmark display instruction input means instructs to display the landmark on the display screen. To display the landmark on the display screen when a landmark display instruction is input by the landmark display instruction input means, the user can display the landmark on the display screen without repeating complicated operations. It can be displayed, and time and effort of the user can be saved. Thereby, for example, even when the vehicle is stopped at an intersection or the like while traveling in a city area, the landmark can be immediately displayed on the display screen, and the landmark is effective even when the landmark is set to non-display. Can be used for

According to a second aspect of the present invention, in a navigation device for detecting a current location and displaying the current location on a display screen, a landmark for inputting an instruction to hide a landmark displayed on the display screen is input. Non-display instruction input means (for example, non-display instruction button 3b shown in FIG. 4)
Wherein the landmark displayed on the display screen is non-displayed when a landmark non-display instruction is input by the landmark non-display instruction input means.

According to the second aspect of the present invention, in the navigation device for detecting the current position and displaying the current position on the display screen, the landmark displayed on the display screen by the landmark non-display instruction input means. In order to hide the landmarks displayed on the display screen when a landmark non-display instruction is input by the landmark non-display instruction input means,
The user can hide the landmark displayed on the display screen without repeating a complicated operation. As a result, unnecessary landmarks can be immediately hidden and a display screen that is easy to see can be provided. Therefore, the landmark does not overlap with the road, the place name, and the like, and the display screen does not remain unreadable, and the usability is improved.

According to a third aspect of the present invention, in the first aspect of the invention, landmark storage means (for example, a memory shown in FIG. 1) for storing a type of a landmark designated as a display target on the display screen. 16), wherein when a landmark display instruction is input by the landmark display instruction means, landmarks of the type stored in the landmark storage means are displayed on the display screen. .

According to the third aspect of the present invention, the landmark storage means stores the type of the landmark designated as a display target on the display screen, and the landmark display instruction means instructs the display of the landmark. Is input, the landmarks of the type stored in the landmark storage means are displayed on the display screen, so that only necessary landmarks can be displayed when necessary, and a display screen that is easy to view can be provided.

The invention according to claim 4 is the first or second invention.
In the invention described, the landmark display instruction input means is displayed on the display screen when the landmark is not displayed, and the landmark non-display instruction input means is provided when the landmark is displayed. It is characterized by being displayed on a display screen.

According to the present invention, the landmark display instruction input means is displayed on the display screen when the landmark is not displayed, and the landmark non-display instruction input means displays the landmark. Since the display is performed on the display screen when it is performed, unnecessary display objects on the display screen can be reduced, a display screen that is easy to see can be provided, operability can be improved, and key operation errors can be eliminated.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 are diagrams showing an embodiment of a navigation device to which the present invention is applied.

First, the configuration will be described. FIG. 1 is a block diagram illustrating a main configuration of a navigation device 1 according to the present embodiment. In FIG. 1, a navigation device 1 includes a CPU (Central Processing Unit) 11 and a G
PS antenna 12, autonomous navigation unit 13, input unit 1
4, a display unit 15, a memory 16, a storage device 17, and the like, and these units are connected by a bus.

The CPU 11 reads and executes various system programs stored in the storage device 17, and controls the driving of each part of the navigation device 1. Also, GPS
Based on data input through the antenna 12, the autonomous navigation unit 13, the input unit 14, and the like, various application programs for navigation stored in the storage device 17 are read, and a current position detection process, a route search process, and a land search process are performed. Various processes such as a mark display setting process and a landmark display switching process are executed, and the processing results are displayed on the display unit 15.

More specifically, the CPU 11 has a storage device 17
The landmark display switching process (FIG. 2), which will be described later, is executed based on the landmark display switching process program stored in. In this landmark display switching process, the CPU 11 obtains the current position from the GPS antenna 12 and the autonomous navigation unit 13 described below, obtains the map data corresponding to the current position from the map database 17a, and displays the map data on the navigation screen together with the map. to display the current position. A display / non-display instruction button for inputting a landmark display switching instruction is set on the navigation screen, and waits for an instruction from the user to be input.

Here, when a landmark display instruction is input by the user, the CPU 11 determines whether or not the landmark display setting has been performed. , And acquires landmark data corresponding to the map data from the landmark database (DB) 17b. Then, various landmarks are displayed on the navigation screen.

When the landmark display setting is performed, the CPU 11 acquires the type of the landmark stored in the memory 16 and the map data from the landmark DB 17b and the type of the landmark acquired from the memory 16. Get the data of the landmark corresponding to. Then, only the type of landmark selected by the user is displayed on the navigation screen. Since the landmark display setting is performed by the same processing as the landmark display setting processing in the conventional navigation device, detailed description will be omitted.

On the other hand, in the landmark display switching process, when an instruction to not display a landmark is input,
U11 sets the currently displayed landmark to non-display and displays the navigation screen.

The GPS antenna 12 is an antenna for receiving a GPS signal transmitted from a GPS satellite. The received GPS signal is output to the CPU 11, and the absolute current position (latitude, longitude) of the vehicle is detected based on the GPS signal.

The autonomous navigation unit 13 includes an angle sensor, a distance sensor, and the like. The angle sensor detects the angular velocity of the vehicle (the angle of rotation in the horizontal direction per unit time) and calculates the amount of change in the moving azimuth. The distance sensor detects a pulse signal output according to the rotation of the wheel, and calculates the amount of movement of the vehicle. The autonomous navigation unit 13 calculates a relative position change of the vehicle based on the angular velocity signal and the vehicle speed pulse signal and outputs the calculated change to the CPU 11.

The input unit 14 includes various keys corresponding to various functions such as use of navigation, in addition to character keys, numeric keys, and search keys, and outputs an operation signal for the operated key to the CPU 11. Further, the input unit 14 may be configured to include a pointing device such as a touch panel, an input device such as a remote controller, or may be configured to be capable of performing voice input.

The display section 15 is composed of a color liquid crystal display or the like,
The display information for navigation input from U11 is displayed.

The memory 16 includes a RAM, a ROM, and the like, and forms a work area for temporarily storing various programs executed by the CPU 11 and data relating to the various programs. For example, the type of landmark set by the user in the landmark display setting process executed by the CPU 11 is temporarily stored in the memory 16.

The storage device 17 includes a recording medium (not shown) in which programs, data, and the like are stored in advance. In the recording medium, various applications of the navigation device 1 executed by the CPU 11 and these programs are stored. Is stored. For example,
Various programs such as a current position detection process, a route search process, a landmark display setting process, and a landmark display switching process for performing the above process, a route searched in the past, and an operation of the navigation device 1 are provided on the recording medium. Setting data in which various setting contents regarding the setting are recorded.

The storage device 17 stores a map DB 17a,
It has a landmark DB 17b. Map DB 17a
Contains the map data used to display the navigation,
Various symbol data of roads, facilities, seas, lakes and the like are stored. The landmark DB 17b stores landmark data indicating various facilities that serve as guides for road guidance. The landmark data stored in the landmark DB 17b is, for example, data indicating convenience stores, gas stations, family restaurants, banks, public facilities, and the like.

Next, the operation of this embodiment will be described. A program for realizing each function described in the flowchart of FIG. 2 shown below is stored in the storage device 17 in the form of a readable program code, and the CPU 11 complies with the program code. Execute the operation sequentially. CD-ROM, DV (not shown)
It is also possible to execute an operation specific to this embodiment using a program / data externally supplied from a D-ROM control unit or the like.

FIG. 2 is a flowchart showing a landmark display switching process executed by the CPU 11 of the navigation device 1 according to the present embodiment. First, the CPU 11 obtains accurate current position information of the vehicle based on the absolute position information of the vehicle obtained from the GPS antenna 12 and the relative position change obtained from the autonomous navigation unit 13.

Next, map data is acquired from the map DB 17a, and combined with the current position information of the vehicle, the display unit 1
The current position of the vehicle is displayed on the navigation screen 5 and the system waits for an instruction from the user (step S201). At this time, the landmark may be displayed or hidden, and when the landmark is displayed, a non-display instruction button for instructing to hide the landmark is set on the navigation screen. When the landmark is not displayed, a display instruction button for giving an instruction to display the landmark on the navigation screen is set.

Next, when a user inputs a landmark display switching instruction, the CPU 11 determines whether the input instruction is a display instruction of a landmark or a non-display instruction. When the input instruction is a landmark non-display instruction (step S202; No), the displayed landmark is subjected to non-display processing (step S2).
08), and redisplay the navigation screen (step S2).
07), the landmark display switching process ends.

On the other hand, if the input instruction is a display instruction (step S202; Yes), the CPU 11
It is determined whether or not the user has set the landmark display. If the landmark display setting has been performed (step S203; Yes), the CPU 11 acquires the type of the display landmark selected by the user from the memory 16 (step S204), and determines the type of the acquired landmark. The landmark data corresponding to the map data is acquired from the landmark DB 17b (step S205).

If the landmark display setting process has not been performed by the user (step S203; No), C
The PU 11 acquires landmark data corresponding to the map data from the landmark DB 17b (Step S).
205). Then, the acquired landmark data is displayed, the navigation screen is redisplayed (step S207), and the landmark display switching processing ends.

FIGS. 3 and 4 are views showing an example of the navigation screen when the display switching of the landmark is executed in the landmark display switching process executed by the CPU 11. FIG. FIG. 3 shows a state in which the landmark is displayed on the navigation screen, and a non-display instruction button 3a for switching the non-display of the landmark is set on the navigation screen.

FIG. 4 shows a state in which the landmark is not displayed on the navigation screen. When the non-display instruction button 3a on the navigation screen shown in FIG. 3 is pressed, the navigation screen shown in FIG. 4 is displayed. . In the navigation screen on which the landmark is not displayed, a display instruction button 3b for switching the display of the landmark is set. And this display instruction button 3
By pressing b, a navigation screen displaying the landmark shown in FIG. 3 is displayed.

As described above, according to the navigation device 1 of the embodiment of the present invention, the type of the landmark that the user wants to display on the navigation screen is set in advance, and the display / non-display of the landmark is displayed on the navigation screen. Set a button to enter instructions. When the landmark is not displayed on the navigation screen, by pressing the display instruction button set on the screen,
When a landmark is displayed and the landmark is displayed on the navigation screen, the landmark is hidden by pressing a non-display instruction button set on the screen. If the type of landmark to be displayed is not set in advance by the user, display / non-display of various landmarks is switched.

Therefore, the user can display a desired landmark on the navigation screen without repeating complicated key operations, and when the display of the landmark is not necessary, the user can easily perform the landmark by a simple operation. Can be hidden. That is, it is possible to save time and effort related to the key operation of the user, for example, even in a short time to stop at an intersection or the like while traveling in a city area
It is possible to perform the display / non-display switching of the landmark.

Therefore, unnecessary landmarks are displayed, so that necessary roads, place names, and road names do not overlap with landmarks, and the navigation screen does not remain difficult to see. Further, since the non-displayed landmarks can be displayed immediately when necessary, the landmarks can be effectively used, and the usability is improved.

Further, since the switching operation is simple, the display can be switched even for a passenger who is unfamiliar with the key operation of the navigation device. / Non-display can be switched. Furthermore, when a landmark is displayed, a non-display instruction button is set on the navigation screen, and when a landmark is displayed, a non-display instruction button is set on the navigation screen. In addition to reducing unnecessary display items and providing an easy-to-view navigation screen, operability can be improved and key operation errors can be eliminated.

The description in the present embodiment is an example of the navigation device according to the present invention, and the present invention is not limited to this. For example, in the present embodiment, an instruction input is performed by key operation, but a display / non-display instruction input may be performed by voice input. Accordingly, the user can switch between displaying and non-displaying the landmark by merely saying, for example, “display” or “non-display”. I can do it. In addition, the detailed configuration and detailed operation of the navigation device 1 according to the present embodiment can be appropriately changed without departing from the spirit of the present invention.

[0042]

According to the first or fifth aspect of the present invention, a user can display landmarks on a display screen without repeating complicated operations.
The user's labor and time can be saved. Thereby, for example, even when the vehicle is stopped at an intersection or the like while traveling in a city area, the landmark can be immediately displayed on the display screen, and the landmark is effective even when the landmark is set to non-display. it can be used to.

According to the invention described in claim 2 or the invention described in claim 6, the user can hide the landmark displayed on the display screen without repeating a complicated operation. As a result, unnecessary landmarks can be immediately hidden and a display screen that is easy to see can be provided.
Therefore, the landmark does not overlap with the road, the place name, and the like, and the display screen does not remain unreadable, and the usability is improved.

According to the third aspect of the present invention, in addition to the effect of the first aspect of the present invention, only a necessary landmark can be displayed when necessary, and a display screen which is easy to see can be provided.

According to the invention described in claim 4, in addition to the effects of the invention described in claim 1 or 2, unnecessary display objects on the display screen are reduced, and an easy-to-view display screen is provided, and operability is improved. The key operation error can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a main configuration of a navigation device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a landmark display switching process executed by a CPU 11 of the navigation device 1.

FIG. 3 is a diagram showing a display example of a navigation screen when a landmark is displayed.

FIG. 4 is a diagram showing a display example of a navigation screen when a landmark is not displayed.

FIG. 5 is a flowchart showing a landmark display setting process executed by a conventional navigation device.

FIG. 6 is a diagram illustrating a display example of a navigation screen in a landmark display setting process.

[Explanation of symbols]

 Reference Signs List 1 navigation device 11 CPU 12 GPS antenna 13 autonomous navigation unit 14 input unit 15 display unit 16 memory 17 storage device 17a map database 17b landmark database

Claims (6)

[Claims] 1. A navigation device for detecting a current position and displaying the current position on a display screen, comprising: landmark display instruction input means for inputting an instruction to display a landmark on the display screen; A navigation device, wherein a landmark is displayed on the display screen when a display instruction for a landmark is input by a display instruction input unit. 2. A navigation device for detecting a current position and displaying the current position on a display screen, wherein landmark non-display instruction input means for inputting an instruction to non-display a landmark displayed on the display screen is provided. A navigation device for displaying a landmark displayed on the display screen when a landmark non-display instruction is input by the landmark non-display instruction input means. 3. A landmark storage unit for storing a type of a landmark designated as a display target on the display screen, wherein a landmark display instruction is input by the landmark display instruction unit. 2. The navigation device according to claim 1, wherein the type of landmark stored in the landmark storage unit is displayed on the display screen. 4. The landmark display instruction input means is displayed on the display screen when the landmark is not displayed, and the landmark non-display instruction input means is provided when the landmark is displayed. The navigation device according to claim 1, wherein the navigation device is displayed on a display screen. 5. A display method for a navigation device for detecting a current position and displaying the current position on a display screen, comprising a landmark display instruction inputting step of inputting an instruction to display a landmark on the display screen. A method for displaying a navigation device, comprising: displaying a landmark on the display screen when a landmark display instruction is input in the landmark display instruction input step. 6. A display method of a navigation device for detecting a current location and displaying the current location on a display screen, wherein a landmark non-display instruction for inputting an instruction to hide a landmark displayed on the display screen is provided. A method for displaying a landmark displayed on the display screen when a landmark non-display instruction is input in the landmark non-display instruction input step. .