KR20070095258A - Method for guiding a separated path in navigation and system therefor - Google Patents

Abstract

A method and a system for guiding a route in navigation are provided to help a driver take an accurate route to a destination during short time on driving by distinguishing adjacent routes. A method for guiding a route in navigation includes the steps of obtaining a first route(471) from a departure point to a destination, obtaining a first entrance point(420) from a first road(440) to a second road(450) on the first route, obtaining a second route(472) from the first road to a third road at a second entrance point(430) when the second entrance point is within a predetermined distance from the first entrance point, guiding the obtained first route, and comparing the first route with the second route when guiding a route at the first entrance point.

Description

Method for guiding a separated path in navigation and system therefor}

The present invention relates to a method and a system for guiding a route in a navigation. More specifically, the present invention relates to a method and a system for guiding a route in a navigation. A method and system for guiding a path to distinguish it from the path.

Recently, terminals for navigation have been widely used. Navigation is a system for guiding a route to a destination by guiding a terminal or a vehicle using a GPS chip of the terminal, or guiding a route through a simulation driving.

1 illustrates a screen guided through a conventional navigation.

As shown in FIG. 1, when the navigation is guided, the path 110 is first extracted and displayed on the screen, and the driving direction at the guide point located at a current distance from the current location on the extracted path 110 is indicated. A lane information window 130 indicating a lane to be used for proceeding according to the rotation direction information window 120 and the extracted route at the guide point is output.

FIG. 1 shows that in order to proceed along a route, the driver should turn left at the guide point, and there are four lanes in total at the guide point, and any one of the three lanes on the left side can be used.

In the conventional navigation system as shown in FIG. 1, when there are other access roads within a predetermined distance in the vicinity of the access road on the path when outputting along the path, only the access road on the path is output so that the access road and the other access road on the path are not distinguished well. There was a downside.

For example, in order to proceed according to the extracted path as shown in FIG. 2, it is necessary to enter the first access road 210 in the right direction, and the second access road 220 in the right direction 50 m away from the first access road. If there exists, the distance between the first access road 210 and the second access road 220 is near from the driver's point of view, it is likely to enter the second access road 220 irrelevant to the extracted path.

However, in the guidance of the route through the conventional navigation, this point is not considered, and only the access road along the route extracted from the starting point to the destination is guided. The rotation information window 230 also briefly presented only the extracted route as the rotation information, and since the voice guidance also guided only the extracted route to the 'enter right' or '1 o'clock direction', the conventional navigation is performed to the user when driving the vehicle. There was a problem that the distinction between the two ramps could be difficult.

3 is a first access road 310 among a first access road 310 and a second access road 320 located 50 m away from the first access road 310 in order to proceed with the vehicle according to the path when the current vehicle location 300 receives the route guidance. ) Shows the situation to turn right.

In FIG. 3, only the route to the destination is output in the conventional navigation. Since the rotation information window 330 only guides the right turn information, and also guides the voice guidance only in the 'right turn' or 'right direction', the user may move the middle of the first access road 310 and the second access road 320 within a short time while driving the vehicle. There was a problem that it is not easy to determine where to turn right.

In order to solve the above problem, in the present invention, when the first entry point and the separate second entry point on the route to the destination are adjacent to each other, the route passing through the route and the second entry point to the destination passing through the first entry point are adjacent to each other. It is an object of the present invention to provide a method and system for guiding different paths from one another.

In order to achieve the above object, the present invention includes the steps of extracting a first route which is a route between the starting point and the destination; Extracting a first entry point from the first road to the second road on the extracted first path; When the second entry point, which is a point that can enter the third road from the first road, exists within a predetermined distance from the first entry point, a path for entering the third road from the first road at the second entry point Extracting a second phosphorus path; And guiding a route according to the extracted first route and guiding the first route to be compared with the second route when guiding the entry at the first entry point. Provides a route discrimination guide.

Here, the step of guiding preferably outputs and guides the first path and the second path simultaneously on the screen such that the first path is compared with the second path.

In addition, the guiding step may preferably be output by guiding a voice guide that guides the first path to be compared with the second path.

In addition, the route discrimination guide method may be used to guide a route on a simulated driving service provided through a wired or wireless Internet.

On the other hand, the present invention to achieve the above object is a first path extraction unit for extracting a first path which is a route between the starting point and the destination; A first entry point extracting unit extracting a first entry point entering the second road from the first road on the extracted first path; When the second entry point, which is a point that can enter the third road from the first road, exists within a predetermined distance from the first entry point, a path for entering the third road from the first road at the second entry point A second path extracting unit extracting a second path; And a guide unit for guiding a route according to the extracted first route and guiding the first route to be compared with the second route when guiding the entry at the first entry point. Provides a route discrimination guidance system.

On the other hand, in order to achieve the above object, the present invention provides a computer readable recording medium having recorded thereon a program for realizing the above method.

According to the present invention, not only to guide the route but to clearly distinguish the adjacent access points, so that the driver can select the access route according to the route exactly to the destination even during a short time while driving, thus helping the driver's driving more. There are advantages to it.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 illustrates an example of a screen guided through the present invention.

In FIG. 4, the current vehicle location 410 is on the first road 440, and on the first road 440, there is a first entry point 420, which is a point of entry to the second road 450. 50 m away from the first entry point 420, there is a second entry point 430, which is a point entering the third road 460 from the first road 440.

When the vehicle travels along the first route 471, which is a route between the starting point and the destination, the vehicle turns right at the first entry point 420 nearest to the current vehicle location 410 to enter the second road 450.

An entry point at the first entry point 420 and the second entry point 430 is a point at which one road may enter from another road, which is connected to each other. The concept includes the entry and exit points of the highway, the entry and exit points of the bridge, etc., and means all points where the road may need to be changed by turning to reach a desired destination.

In this case, the route discrimination guidance system according to the present invention is a second route that enters the third road 460 through the second entry point 430 from the guide point 410 in addition to the first route 471 which is the route to the destination. The path 472 is extracted and the first path 471 is compared with the second path 472 to guide the driver to enter the first entry path 420 instead of the second entry path 430.

Here, the paths in the first path 471 and the second path 472 mean a direction or a path in which the vehicle can travel on a map displayed on the navigation screen or separately from the map.

In FIG. 4, the first path 471 may be represented by a solid line, and the second path 460 may be represented by a dotted line on a map on which the first road 440, the second road 450, and the third road 460 are displayed. have. That is, the first path 471 and the second path 460 are clearly compared with each other and guided by a solid line and a dotted line.

Accordingly, the vehicle driver clearly compares and recognizes the presence of the two paths and the two entry points even during a short time while driving, and thus may enter the first entry point 420 without mistakes. In addition, the navigation guide can know which of the two entry points to enter, so there is no need to check the signs one by one, thus reducing the possibility of a traffic accident and improving the driver's convenience.

The comparison guide between the first path 471 and the second path 472 may be made not only on the map but also through the rotation information window 480. In the rotation information window 480, the first path 481, which is a path to the destination, is briefly presented as the rotation information in comparison with the second path 482. For example, in the rotation information window 480 of FIG. 4, a path is displayed using an arrow in the first path 481, but only a path is briefly displayed in the second path 482 without an arrow.

When the map to be output on the screen of the navigation is complicated and the display of the path on the map is difficult to see at a glance, the first path 481 and the second path 482 using the rotation information window 480 and the like separately from the map. If the guidance is to be compared, the driver can clearly determine within a shorter time to select which of the first entry point 420 and the second entry point 430.

At this time, it is preferable to allow the system designer or the user to arbitrarily set the positions 411 and 412 to guide the entry based on the first entry point 420.

Specific embodiments of the present invention are described in more detail while describing the systems and methods of the present invention.

5 is a block diagram showing the configuration of the route classification guide system of the present invention.

The path discrimination guide system of the present invention includes a first path extracting unit 510, a first entry point extracting unit 520, a second path extracting unit 530, and a guide unit 540.

The route extracting unit 510 extracts a first route which is a route between a departure point and a destination. The first path extraction performed by the path extraction unit 510 is performed in the same manner as the path extraction from the starting point to the destination in the general navigation.

That is, when a starting point and a destination are set, and predetermined route extraction criteria such as highway priority extraction and general road priority extraction are determined, a first route, which is a route between the starting point and the destination, from a database (not shown) that stores map information accordingly. Extract the path.

The first entry point extractor 520 extracts a first entry point entering the second road from the first road on the first path extracted by the first path extraction unit 510. The process of extracting the first entry point from the first entry point extractor 520 is performed through the same process as that of extracting the point requiring the change of the traveling direction of the vehicle in the general navigation.

The second path extractor 530 determines whether a second entry point, which is a point that can enter the third road from the first road, exists within a predetermined distance from the first entry point. When the second entry point exists within a predetermined distance from the first entry point, the second path extractor 530 extracts a second path that is a path from the first road to the third road at the second entry point.

A method of extracting the second path from the second path extractor 530 is as follows.

First, the second path extractor 530 may enter another road in addition to the second road from the first road on the first path in consideration of the first path and the moving direction extracted by the first path extractor 510. Judge.

If it is possible to enter from the first road to the third road instead of the second road, the second path extractor 530 extracts the first entry point, which is the point where the second entry point can enter the third road from the first road. When the part 520 exists within a predetermined distance from the extracted first entry point, the second path, which is a path from the first road to the third road, is extracted at the second entry point.

If the distance between the first entry point and the second entry point is greater than or equal to the predetermined distance, it may be meaningless to guide the driver by distinguishing the first route and the second route. Therefore, the first entry point and the second entry point are meaningless. The second path is extracted only within a predetermined distance, for example within 100 m. In this case, the distance between the first entry point and the second entry point, which is a reference of whether to extract the second path, may be preset by the system designer or may be arbitrarily set by the user.

The guide unit 540 guides the user to the path according to the first path extracted by the first path extractor 510, and guides the user at the first entry point extracted by the first entry point extractor 520. The first path may be compared with the second path extracted by the second path extracting unit 530.

When guiding the route in the guide unit 540, it can be guided only on the screen, can be guided only by voice, or can be guided by using both the screen and voice.

When guiding through the screen output, the first path may be displayed as a solid line and the second path as a dotted line directly on the road of the map for guidance. In this case, only the first path is preferably indicated by an arrow. In addition to the comparison method between the solid line and the dotted line, it may be displayed to be distinguished by color. For example, the first path may be displayed in red, and the second path may be displayed in yellow to be compared with each other.

In addition to displaying on a road of a map for guidance, the first path and the second path may be compared while displaying the direction of rotation of the vehicle for entering another road in a separate box window such as a rotation direction information window. As shown in FIG. 4, a direct display on the road and a display through a separate box window may be performed in parallel.

In the case of guiding by voice, in the case shown in FIG. 4, adjacent directions, such as 'go to the first exit on the right' or 'go to the first road on the right', are shown at locations 411 and 412 to guide the entry. It is preferable that the two entry points are clearly distinguished from each other to guide the first path and the second path to be compared.

In the case of the voice guidance, in the case of FIG. 6, the driver may be clearly informed of which of the two roads to enter in a manner such as 'turn right on the second road' or 'enter the second road on the right'. will be.

The present invention can be applied to a case where the second road and the third road which can enter from the first road are the same or similar to each other, or when the travel directions of the second road and the third road are different from each other.

For example, the present invention can be applied even when the traveling direction of the second road is 1 o'clock and the traveling direction of the third road is different from each other in the 3 o'clock direction. That is, the present invention can be applied regardless of the moving direction as long as the entry points are adjacent to each other.

In addition, the present invention is applicable not only to two entry points but also to three or more entry points existing within a predetermined distance from each other. In addition to the case in which the entry point exists on the right side of the road progress direction as in the case of FIGS. 4 and 6, the entry point exists on the left side of the road and a left turn is required in order to enter the same. will be.

7 is a flowchart illustrating a path discrimination guidance method of the present invention.

First, when a starting point and a destination are set, the first path extracting unit 510 extracts the first path in the same manner as a method of extracting a path in a general navigation (701).

The first entry point extractor 520 extracts a first entry point entering the second road from the first road on the first path extracted by the first path extraction unit 510 (702).

As described above, the step 701 of extracting the first path and the step 702 of extracting the first entry point are performed by the same method as that of the conventional navigation.

On the other hand, the second path extracting unit 530 is a second entry point that is a point that can enter the third road from the first road on the first path extracted by the first path extracting unit 510 the first entry point extraction unit ( In operation 703, it is determined whether the first entry point 520 is present within a predetermined distance, for example, 100 m.

When it is determined that the second entry point exists within a predetermined distance from the first entry point, the second path extracting unit 530 determines the second path, which is a path from the first entry point to the third road, at the second entry point. Extract (704).

When the second path is extracted as described above, the guide unit 540 guides the path according to the extracted first path, and when the first path is guided through the screen and / or voice at the first entrance point, the first path is connected with the second path. Guide 705 to compare.

In this case, when guiding the screen output, the first path may be displayed as a solid line on the road of the map for guidance, and the second path may be displayed as a dotted line. In this case, only the first path is preferably indicated by an arrow. In addition to the comparison method between the solid line and the dotted line, it may be displayed to be distinguished by color. For example, as described above, the first path may be displayed in red and the second path may be displayed in yellow to be compared with each other.

In addition to displaying on a road of a map for guidance, the first path and the second path may be compared while displaying the direction of rotation of the vehicle for entering another road in a separate box window such as a rotation direction information window. As shown in FIG. 4, the direct display on the road and the display through a separate box window may be guided in parallel.

In the case of guiding by voice, in the case shown in FIG. 4, adjacent directions, such as 'go to the first exit on the right' or 'go to the first road on the right', are shown at locations 411 and 412 to guide the entry. As described above, the two entry points can be clearly distinguished from each other and guide the first path and the second path to be compared.

If it is determined that the second entry point does not exist within a predetermined distance from the first entry point, the guide unit 540 may guide the entry at the first entry point extracted by the first entry point extraction unit 520. Only the first path extracted by the path extractor 510 will guide the screen and / or the voice (706).

The method of the present invention can also be embodied in computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, which are also implemented in the form of a carrier wave (for example, transmission over the Internet). It also includes. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

The technical scope of the present invention described above through the embodiments is not limited to the above-described embodiments, and various modifications and changes may be made without departing from the spirit and scope of the present invention. It is evident to those who have knowledge. Therefore, such modifications or variations will have to be belong to the scope of the invention described in the claims of the present invention.

For example, in the above-described embodiment, the route discrimination guidance system of the present invention has been described on the premise of guiding a route based on the tracked position after tracking the position of the mounted vehicle. The same applies to providing a simulated driving service through a wireless Internet using a wired Internet, WiBro wireless LAN, etc. using a separate server equipped with a system. At this time, the route will be guided based on the position of the vehicle guided on the simulated driving.

1 is a view showing an example of a guide screen through a conventional navigation.

2 is a view for explaining a route guidance method through a conventional navigation.

3 is a view for explaining another route guidance method through the conventional navigation.

4 is a diagram illustrating an example of a screen to be guided through the present invention.

5 is a block diagram showing a configuration of the present invention.

6 is a view showing another example of a screen guided through the present invention.

7 is a flow chart illustrating a method of the present invention.

Claims (9)

Extracting a first route which is a route between a starting point and a destination; Extracting a first entry point from the first road to the second road on the extracted first path; When the second entry point, which is a point that can enter the third road from the first road, exists within a predetermined distance from the first entry point, a path for entering the third road from the first road at the second entry point Extracting a second phosphorus path; And Guiding a route according to the extracted first route and guiding the first route to be compared with the second route when guiding the entry at the first entry point. How to distinguish route. The method of claim 1, wherein the step of guiding And guiding the first path and the second path by simultaneously outputting the first path and the second path on the screen so that the first path is compared with the second path. The method of claim 1, wherein the step of guiding The route discrimination guidance method of the navigation, characterized in that for outputting and guiding the voice guidance for guiding the first route compared with the second route. The method of claim 1, wherein the path discrimination guidance method is a method of guiding a route on a simulated driving service provided through a wired or wireless Internet. A first path extracting unit extracting a first path which is a path between a starting point and a destination; A first entry point extracting unit extracting a first entry point entering the second road from the first road on the extracted first path; When the second entry point, which is a point that can enter the third road from the first road, exists within a predetermined distance from the first entry point, a path for entering the third road from the first road at the second entry point A second path extracting unit extracting a second path; And A guide unit for guiding a route according to the extracted first route and guiding the first route to be compared with the second route when guiding the entry at the first entry point. Route classification guidance system. The method of claim 5, wherein the guide portion And the first path and the second path are simultaneously output on the screen and guided so that the first path is compared with the second path. The method of claim 5, wherein the guide portion And a path discrimination guidance system for navigation, characterized in that the first path is output and guided to guide the first path to be compared with the second path. The route discrimination guidance system of claim 5, wherein the route discrimination guide system is a system for guiding a route on a simulated driving service provided through a wired or wireless Internet. A recording medium containing a program for realizing the route discrimination guidance method in the navigation according to any one of claims 1 to 4.

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