KR19990042459A - How to Display Image Files on an Electronic Map - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying an electronic map in a car navigator device (hereinafter referred to as CNS). By looking at existing picture files, you can quickly judge the surroundings.

The present invention comprises the steps of determining the crossroad or three-dimensional intersection check state during the vehicle driving, and reading the detailed map with the coordinate value according to the progress of the vehicle in the intersection check state and displaying on the sub-screen, the same coordinate value when displaying the detailed map Checking whether the stored image file exists and reading the image file when it exists and displaying the detailed image of the sub-screen together.

Description

How to Display Image Files on an Electronic Map

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying an electronic map in a car navigator device (hereinafter referred to as CNS). The present invention relates to a method of displaying an image file on an electronic map that allows a user to quickly determine the surroundings by looking at an existing image file.

When the current location and the destination are input in a car equipped with a CNS, the electronic map screen 1 shown in FIG. 1 is displayed on the display device inside the car by reading the electronic map stored in the CD-ROM according to the moving path of the car. .

The electronic map screen 1 of the CNS is composed of a main screen 2 for displaying an electronic map indicating a moving path and a current position of the vehicle, and an auxiliary screen 3 for displaying detailed maps such as a range or rotary.

The auxiliary screen (3) is difficult to grasp the current position information and the direction of travel information by the main screen (2) at the crossroad or three-dimensional intersection, such as when driving on the road, and the driver can easily display the current position and direction information by expanding the display on the auxiliary screen (3) To understand.

Here, the display method of the sub screen 3 is a method of reading and displaying an electronic map corresponding to the X and Y coordinates when the X and Y coordinates are selected according to the progress position of the vehicle on the electronic map displayed on the main screen 2. Will be displayed.

In the above-described method, the sub screen 3 can be used to grasp information at a crossroad or a three-dimensional intersection, but the building is located at the crossroad or a three-dimensional intersection, and the main building or the main indication that is a state of attention is not displayed. It was not easy to grasp the information by matching the displayed map with the actual range and the state of the three-dimensional intersection.

In other words, it may cause an illusion due to the difference between the map displayed on the sub-screen (3) and the actual crossroad and the three-dimensional intersection, which makes it difficult to accurately grasp information.

The present invention displays the image file such as a picture or photo such as a crossroad or a three-dimensional intersection existing on the electronic map sub-screen of the CNS, so that the situation can be quickly determined by viewing the existing picture file.

The present invention stores the actual picture and photo of the main crossroad or three-dimensional intersection as an image file, and the image file stored as a coordinate value to display the detailed map when displaying the detailed map of the crossroad or three-dimensional intersection according to the progress of the vehicle Determining whether to check the crossroad range or three-dimensional intersection while driving the vehicle by reading and displaying it on the sub-screen together with the detailed map;

Read the detailed map with the coordinate value according to the progress of the vehicle at the intersection confirmation state and display it on the sub screen;

Checking whether there is an image file stored at the same coordinate value when the detailed map is displayed;

When the image file exists, it is read out and displayed together with the detailed map of the sub-screen.

The present invention is to store the existing picture and photo of the main crossroad and three-dimensional intersection as a database to store the image file, but to save the coordinate according to the coordinate value of the detailed map of the electronic map, and then the detailed map by the coordinate value of the electronic map at the intersection, etc. When displaying, it reads the image file stored with the above-mentioned coordinate value and displays it with the detailed map on the sub-screen so that the driver can easily see the existing building and get information.

1 is an example of a conventional electronic map display

2 is an example of an electronic map display of the present invention

3 is a flowchart of the present invention.

Explanation of symbols on the main parts of the drawing

1: electronic map screen 2: main screen

3: Sub screen

In the present invention, in the CNS screen display method for displaying the current position and the driving direction of the vehicle on the main screen (2) and the detailed map according to the vehicle driving position on the sub-screen (3),

When the actual picture or photo of the main intersection is saved as an image file and the detailed map of the main intersection is displayed on the sub-screen (3), the stored image file is read out and displayed together with the detailed map. Is inserted and displayed.

Here, the method of displaying the detailed map on the sub screen 3 by reading the X and Y coordinate values of the electronic map displayed on the main screen 2 is the same as the conventional method, and the database image file is generated according to the X and Y coordinate values. By reading out and displaying it on the sub-screen 3, the existing buildings and intersections can be displayed on the detailed map.

The present invention is to perform the auxiliary function to display the upper and lower important lanes when the name or three-dimensional road of the main building in the lower portion of the auxiliary screen (3).

In the present invention, in the display of the current position of the movement of the vehicle on the electronic map, the process of confirming whether the confirmation is set to the main intersection,

Checking the intersection is set, the process of displaying the intersection screen on the sub-screen (3) by reading the intersection coordinate value,

Determining whether a database image file exists based on the intersection coordinate value;

If there is an image file to be read as the intersection coordinate value, the image file is read and displayed on the sub screen.

In this case, the image file refers to the actual intersection picture or photo, and the image file for the main intersection is databased so that it can be read as the intersection coordinate value.

Therefore, when reading an image file, it is read by intersection coordinates without specifying an address.

In addition, the lower part of the auxiliary screen (3) displays the name of the main building represented by the image file or the important lane of the three-dimensional intersection as an auxiliary function, which helps to confirm the information.

As such, when the CNS is input as a starting position and an arrival point, the main screen (2) displays the current moving position of the vehicle on the electronic map, and when the main intersection is encountered according to the movement of the vehicle, the main intersection is displayed on the sub screen (3). It is the general technical content of the existing CNS to enlarge and display the driver to acquire more reliable driving information.

In order to display the detailed map of the main intersection, the detailed map is displayed on the sub-screen 3 by reading the X and Y coordinate values of the intersection.

In the present invention, the actual picture or photograph of the main intersection in advance is stored in an image file to make a database, but the image file can be read by the intersection coordinate value.

At this time, the memory means for storing the image file uses a CD-ROM, DVD or a separate high-density memory element, and as the recording density of the memory means is increased, a larger amount of image file can be stored.

Thus, the image file stored in the memory means is read out and displayed on the sub screen 3 together with the detailed map.

That is, the present invention checks whether the vehicle position is moved to approach the main intersection of the electronic map displayed on the main screen (2),

If there is guidance information data (intersection X, Y coordinate values) for enlargement and display as a major intersection, a detailed map of the intersection corresponding to the intersection coordinate value is read out and displayed on the sub-screen (3).

At this time, the detailed map is displayed by the intersection coordinate value. If the image file of the intersection is stored in the memory device, the intersection coordinate value is searched. If the image file does not exist, only the detailed map is displayed. If the image file exists, the image file is read. By being displayed on the subscreen 3, the subscreen 3 displays an image file with a detailed map.

Here, the detailed map is to enlarge the concrete road shape of the intersection and the image file is a picture file of the shape of the building around the intersection. When the image file is displayed together with the detailed map, the shape of the building around the intersection is displayed. By comparing the appearance of the intersection with the contents of the auxiliary screen (3), it helps to drive safely.

Here, the lower part of the auxiliary screen 3 displays a building name or a road name displayed as an image file as an auxiliary function so that the driver can easily acquire driving information.

The present invention stores the picture or photo of the actual intersection of the main intersection as an image file, and when displaying a detailed map of the main intersection, the image file is also displayed to show the actual building or shape at the intersection. By displaying the same, the driver learns the driving information quickly and accurately to help the safe driving.

Claims (3)

In displaying the current movement position of the vehicle on the electronic map of the main screen and the detailed map of the major intersections on the sub-screen, Image file display device on an electronic map, which stores a picture or photo of an actual intersection as an image file and reads out an image file stored as a coordinate value for displaying a detailed map of a major intersection and displays it on a sub screen together with a detailed map. . In displaying the current moving position of the vehicle on the electronic map of the main screen and the detailed map of the main intersection on the sub-screen, Checking whether a major intersection check is required when driving a vehicle; reading a detailed map with coordinate values according to the progress of the vehicle when the intersection is checked; displaying it on an auxiliary screen; and displaying an image file stored with the same coordinate value when displaying the detailed map. And checking the image file when the image file exists and displaying the image file together with the detailed map of the sub-screen. The method of claim 1, wherein an auxiliary function of displaying a main building or a road name is performed at a lower portion of an auxiliary screen on which an image file is displayed together with a detailed map.