KR102610411B1 - Apparatus for route guidance - Google Patents

Abstract

A route guidance device is disclosed. The route guidance device of the present invention includes a map information storage unit that stores map information; A user interface unit that displays a vehicle symbol on a map to guide the route to the destination and provides a user interface; And when the own vehicle symbol is dragged through the user interface unit, a correction position corresponding to the location of the own vehicle symbol is detected using the map information stored in the map information storage unit, and the detected correction position is set as the own vehicle location. It is characterized by including a control unit that performs map matching.

Description

Route guidance device {APPARATUS FOR ROUTE GUIDANCE}

The present invention relates to a route guidance device, and more specifically, to a route guidance device that corrects map matching by dragging a vehicle symbol.

In general, a navigation device determines its current location based on the vehicle's location information received through GPS (Global Positioning System) satellites, then reads the current location data from the built-in or received road database and displays the vehicle's location and information on the screen. It is a device that helps users identify the location of the road they are currently driving on or easily find their destination when driving on the first road by displaying it together.

Recently, in order to meet the user's needs, advanced technologies such as providing information on the estimated arrival time from the departure point to the destination when the user sets the destination or suggesting a detour depending on the road conditions to the destination have been used in navigation or smartphones. It is integrated to provide users with more detailed route information.

These navigation devices map a wide variety of information, such as the vehicle's current location information, route information from the vehicle's current location to the vehicle's destination, map information related to the location information and route information, and traffic situation information, to a virtual map. and provide it to the user.

However, there was a possibility that inaccurate map matching could occur due to environmental factors such as the performance of the GPS/DR module, expensive buildings, and upper/lower roads, and because of this, there was a need to correct the map matching periodically or aperiodically.

The background technology of the present invention is disclosed in Korean Patent Publication No. 10-2013-0021983 (2013.03.06) titled 'Route guidance device and method for vehicle navigation device'.

Conventional navigation devices correct map matching when the location information detected by the GPS module is inaccurate. Before correcting map matching, the vehicle symbol is displayed in the wrong location on the map and provides inaccurate information to the user. There was a problem.

The present invention was created to solve the above-described problems, and the purpose of one aspect of the present invention is to provide route guidance so that the user can accurately receive the route to the destination and necessary information by directly dragging the vehicle symbol to the actual location. The device is provided.

A route guidance device according to one aspect of the present invention includes a map information storage unit that stores map information; A user interface unit that displays a vehicle symbol on a map to guide the route to the destination and provides a user interface; And when the own vehicle symbol is dragged through the user interface unit, a correction position corresponding to the location of the own vehicle symbol is detected using the map information stored in the map information storage unit, and the detected correction position is set as the own vehicle location. It is characterized by including a control unit that performs map matching.

In the present invention, it further includes a route search unit that searches a route to the destination using map information stored in the map information storage unit, wherein the control unit searches the route from the correction location to the destination through the route search unit. , Characterized in that the searched path is displayed through the user interface unit.

In the present invention, when the own vehicle symbol is dragged and dropped, the control unit detects the correction position based on the location where the own vehicle symbol is dropped.

In the present invention, when the own vehicle symbol is dragged and dropped, the control unit recognizes the position within the link closest to the dropped point as the correction position.

In the present invention, the control unit changes at least one of the shape and size of the vehicle symbol while dragging the vehicle symbol, expresses the vehicle symbol in three dimensions, or adjusts transparency of the vehicle symbol. do.

In the present invention, while dragging the vehicle symbol, the control unit highlights the point where the vehicle symbol is located, changes road color, changes road width, displays road name or road number information, and displays height difference information with an existing matching road. It is characterized by performing at least one thing.

A route guidance device according to another aspect of the present invention includes a map information storage unit that stores map information; a route search unit that searches a route to a destination using map information stored in the map information storage unit; A user interface unit that displays a vehicle symbol on a map to guide the route to the destination and provides a user interface; And when the own vehicle symbol is dragged through the user interface unit, a correction position corresponding to the location of the own vehicle symbol is detected using the map information stored in the map information storage unit, and the detected correction position is set as the own vehicle location. It is characterized in that it includes a control unit that transmits to the main server and displays the route to the destination delivered from the main server through the user interface unit.

In the present invention, when the own vehicle symbol is dragged and dropped, the control unit detects the correction position based on the location where the own vehicle symbol is dropped.

In the present invention, when the own vehicle symbol is dragged and dropped, the control unit recognizes the position within the link closest to the dropped point as the correction position.

In the present invention, the control unit changes at least one of the shape and size of the vehicle symbol while dragging the vehicle symbol, expresses the vehicle symbol in three dimensions, or adjusts transparency of the vehicle symbol. do.

In the present invention, while dragging the vehicle symbol, the control unit highlights the point where the vehicle symbol is located, changes road color, changes road width, displays road name or road number information, and displays height difference information with an existing matching road. It is characterized by performing at least one thing.

In the present invention, the control unit analyzes the drag trajectory in the process of dragging the vehicle symbol, transmits the drag trajectory to the main server, and receives the path to the destination set based on the drag trajectory from the main server. It is characterized in that it is output through a user interface unit.

A route guidance device according to another aspect of the present invention includes an error prediction point storage unit that stores a preset error prediction point; A map database unit that stores map information; a route search unit that searches a route to a destination using map information stored in the map database unit; And if the position of the vehicle detected by the position detection unit of the vehicle terminal is within the set range set around the expected error point, the route is searched through the route search unit based on each candidate road according to the expected position error, When the vehicle location set as the correction position is transmitted from the vehicle terminal, it is characterized by comprising a control server that transmits a path corresponding to the vehicle location set as the correction position among the paths searched through the route search unit to the vehicle terminal. .

In the present invention, the method further includes an error expected point registration unit that registers the error expected point in the error expected point storage unit.

In the present invention, the error expected point registration unit updates the error expected point depending on whether the location of the own vehicle symbol is transmitted from the vehicle terminal.

In the present invention, the own vehicle position is characterized as a correction position detected based on the position where the own vehicle symbol is dragged and dropped in the vehicle terminal.

In the present invention, the location of the vehicle is characterized in that it includes a location within the link closest to the point where the vehicle symbol is dragged and dropped from the vehicle terminal.

In the present invention, the control server highlights each of the candidate roads through the vehicle terminal when the location of the vehicle detected by the position detection unit of the vehicle terminal falls within a set range set around the expected error point. Do it as

The route guidance device according to one aspect of the present invention allows the user to accurately receive the route to the destination and necessary information by directly dragging the vehicle symbol to the actual location.

1 is a block diagram of a route guidance device according to a first embodiment of the present invention.
Figure 2 is a diagram showing an example of dragging a own vehicle symbol according to the first embodiment of the present invention.
Figure 3 is a diagram illustrating a method for setting a driving direction according to the first embodiment of the present invention.
Figure 4 is a flowchart of a route guidance method according to the first embodiment of the present invention.
Figure 5 is a block diagram of a route guidance device according to a second embodiment of the present invention.
Figure 6 is a diagram showing an example of a route guidance method according to a second embodiment of the present invention.
Figure 7 is a diagram showing another example of a route guidance method according to a second embodiment of the present invention.

Hereinafter, a route guidance device according to an embodiment of the present invention will be described in detail with reference to the attached drawings. In this process, the thickness of lines or sizes of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

Figure 1 is a block diagram of a route guidance device according to a first embodiment of the present invention, and Figure 2 is a diagram showing an example of dragging a own vehicle symbol according to a first embodiment of the present invention.

The route guidance device according to the first embodiment of the present invention can be applied to a non-communication type navigation system mounted on a vehicle.

Referring to Figure 1, the route guidance device according to the first embodiment of the present invention includes a user interface unit 11, a location detection unit 12, a route search unit 13, a map information storage unit 14, and a control unit ( 15) includes.

The user interface unit 11 provides a user interface to the user. The user interface unit 11 not only receives various control commands from the user and inputs them to the control unit 15, but also outputs images and sounds according to the operation control of the control unit 15.

For example, the user interface unit 11 may receive input from the user such as a destination, option, or menu selection for route navigation. Additionally, the user interface unit 11 displays various information provided based on the route guidance service on its screen. For example, the user interface unit 11 displays maps, vehicle symbols, routes, and necessary information. Necessary information may include POI (Point Of Interest) linked to the route, information around the destination, menu information, and recent search destination information.

Additionally, the user interface unit 11 can receive control commands from the user, and moves the vehicle symbol on the screen according to the user's drag operation in the process of guiding the route by matching the vehicle symbol on the map.

In other words, when the user drags the vehicle symbol, the vehicle symbol moves according to the user's dragging direction or location, and if it is subsequently dropped, the vehicle symbol is displayed at the corresponding location.

A touch screen may be employed as this user interface unit 11.

The position detection unit 12 detects the position of the vehicle. A GPS (Global Positioning System) module may be employed as the location detection unit 12. The GPS module calculates distance information from three or more satellites and time information by measuring the distance information, then applies trigonometry to the calculated distance information to calculate three-dimensional location information according to latitude, longitude, and altitude.

The route search unit 13 searches the route to the destination. When a destination is set from the user interface unit 11, the route search unit 13 searches for a route to the destination based on the location of the vehicle input from the position detection unit 12.

The map information storage unit 14 stores map information.

When a destination is input from the user interface unit 11, the control unit 15 searches for a route to the destination through the route search unit 13. In this case, the route search unit 13 searches the route to the destination using the location of the vehicle detected by the position detection unit 12 and the map information stored in the map information storage unit 14.

In addition, the control unit 15 displays the route discovered by the route search unit 13 on the map, maps the location of the vehicle detected by the position detection unit 12 to the map, and displays it on the screen.

In this process, the actual location of the vehicle and the location of the vehicle detected by the location detection unit 12 are different due to environmental factors such as the performance of the GPS/DR module, expensive buildings, and upper/lower roads, resulting in inaccurate map matching. It can be.

Accordingly, the user can correct the own vehicle position by directly dragging and dropping the own vehicle symbol.

That is, when the user drags the vehicle symbol on the map, the control unit 15 moves the vehicle symbol according to the user's drag direction, and then when the user drops the vehicle symbol, the control unit 15 moves the vehicle symbol corresponding to the location where the vehicle symbol was dropped. The location, that is, the corrected location, is detected using map information stored in the map information storage unit 14.

Next, the control unit 15 recognizes the corrected position corrected by the user as the own vehicle position and performs map matching.

That is, when the user moves the vehicle symbol through the user interface unit 11, the control unit 15 recognizes the correction position corresponding to the dragged and dropped point as the vehicle location and performs map matching using this vehicle location. do.

In this case, when the control unit 15 determines that the own vehicle symbol is being dragged, it changes the shape of the own vehicle symbol to, for example, a + or It allows you to accurately match roads on the map, and when the vehicle symbol is dropped, it changes back to the original vehicle symbol form. For reference, in this embodiment, while dragging the own vehicle symbol, not only does it change the shape of the own vehicle symbol, such as a + or You can also express it three-dimensionally or adjust the transparency of the vehicle symbol.

In addition, the control unit 15 processes the candidate road that matches the own vehicle symbol as an event while the own vehicle symbol is dragged, allowing the user to recognize which road the own vehicle symbol is matched to when dropped. In this case, the control unit 15 performs at least one of highlighting the point where the own vehicle symbol is located, changing the road color, changing the road width, displaying road name or road number information, and displaying height difference information with the existing matching road to match. Ensure that users can clearly perceive the road.

In addition, when the control unit 15 recognizes the correction position as the vehicle location, it searches for a route to the destination through the route search unit 13 based on the vehicle location, and provides information such as the route to the destination, the vehicle symbol, and necessary information. is expressed through the user interface unit 11.

Here, when the own vehicle symbol is dragged and dropped by the user, the control unit 15 recognizes the correction position corresponding to the dropped position as the own vehicle location. At this time, the point in the link closest to the dropped position is detected as the correction position. By doing so, the vehicle's position is guided to be accurately located on the road. Therefore, even if the user does not accurately place the vehicle symbol on the road on the map, the vehicle symbol can be accurately located on the road.

Referring to FIG. 2, when the vehicle symbol is located at point A on the screen displayed through the user interface unit 11, and the user drags the vehicle symbol at point A and drops it at point B, the control unit 15 The correction position corresponding to point B is recognized as the own vehicle location, and map matching is performed based on this own vehicle location.

In this case, the control unit 15 controls the route search unit 13 to search for a route to the destination (new route) based on the recognized vehicle location as described above, and sends the searched route to the user interface unit 11. Provided through.

Figure 3 is a diagram illustrating a method for setting a driving direction according to the first embodiment of the present invention.

Referring to FIG. 3, the control unit 15 allows the user to directly designate the direction in which the user wants to drive while dragging the own vehicle symbol. That is, the control unit 15 can recognize the drag direction by analyzing the trajectory of the drag in the process of dragging the own vehicle symbol, and recognize this drag direction as the driving direction of the vehicle at the corresponding location. Based on this, the control unit 15 guides the route to the destination.

For example, when a vehicle leaves a GPS shadow area such as an underground parking lot, it may be difficult for the location detection unit 12 to accurately detect the location of the vehicle. In this case, the user can set the desired driving direction by positioning the own vehicle symbol while dragging it along the road in the desired driving direction.

That is, when the vehicle leaves the building, if the user drags the vehicle symbol along the road in the direction in which he/she wants to drive, the control unit 15 changes the drag direction (right direction) to the corresponding road as shown in (a) of FIG. 3. Set the direction you want to drive in.

When the user drags the vehicle symbol from road A to road B, if the user drags the vehicle symbol downward considering the driving direction on road B, the control unit 15 moves the corresponding vehicle symbol as shown in (b) of FIG. 3. Set the drag direction (downward direction) to the direction you want to drive on road B.

When the user drags the vehicle symbol from road A to road B, if the user drags the vehicle symbol diagonally considering the driving direction on road B, the control unit 15 moves the corresponding vehicle symbol as shown in (c) of FIG. 3. Set the drag direction (diagonal direction) to the direction you want to drive on road B.

Figure 4 is a flowchart of a route guidance method according to the first embodiment of the present invention.

Referring to FIG. 4, first, the control unit 15 controls the route search unit 13 to search for a route to the destination input from the user interface unit 11, and displays the searched route through the user interface unit 11. Guidance (S100).

In this case, the control unit 15 displays the route searched by the route search unit 13 on the map, maps the location of the vehicle detected by the position detection unit 12 to the map, and displays it on the screen.

In this process, the actual location of the vehicle and the location of the vehicle detected by the location detection unit 12 are different due to environmental factors such as the performance of the GPS/DR module, expensive buildings, and upper/lower roads, resulting in inaccurate map matching. It can be.

Accordingly, the control unit 15 determines whether the user drags the own vehicle symbol displayed through the user interface unit 11 (S110), and as a result of the determination, if the user drags the own vehicle symbol, the control unit 15 moves the own vehicle symbol according to the dragging direction. Move it.

In this case, if the control unit 15 determines that the own vehicle symbol is being dragged, in the process of dragging the own vehicle symbol, it changes the shape or size of the own vehicle symbol, such as a + or You can also adjust the transparency of the symbol.

In addition, the control unit 15 processes candidate roads that match the own vehicle symbol as events while the own vehicle symbol is being dragged, allowing the user to recognize which road it is matched to when dropping the own vehicle symbol. For example, the control unit 15 highlights the point where the vehicle symbol is located, changes the road color, changes the width of the road, displays road name or road number information, highlights the display of height difference information with the existing matching road, and processes the road color. It allows users to clearly recognize matching roads through changes, changes in road width, display of road name or road number information, and display of height difference information with existing matching roads.

In the process of moving the own vehicle symbol, when the own vehicle symbol is dropped, the control unit 15 detects the correction position corresponding to the location where the own vehicle symbol was dropped through the map information storage unit 14, and stores the detected correction position as the own vehicle location. Set (S120).

The control unit 15 sets the correction position corresponding to the dragged and dropped point as the own vehicle position. Based on this correction position, the route to the destination is searched through the route search unit 13 (S130), and the searched The path is displayed through the user interface unit 11.

Meanwhile, the control unit 15 allows the user to directly specify the direction in which he or she wants to drive while dragging the own vehicle symbol. That is, the control unit 15 can recognize the drag direction by analyzing the trajectory of the drag in the process of dragging the own vehicle symbol, and recognize this drag direction as the driving direction of the vehicle at the corresponding location. Based on this, the control unit 15 can also guide the route to the destination.

In addition, the control unit 15 provides various necessary information related to the route to the destination through the user interface unit 11, thereby additionally providing various services related to the route to the user (S140).

The above-described first embodiment was explained by taking the non-communication type vehicle terminal 10 mounted in a vehicle as an example. However, the technical scope of the present invention is not only applicable to non-communication type, but can also be applied to communication type.

Figure 5 is a block diagram of a route guidance device according to a second embodiment of the present invention.

Referring to FIG. 5, the route guidance device according to the second embodiment of the present invention includes a vehicle terminal 10 and a main server 20.

The vehicle terminal 10 includes a user interface unit 11, a location detection unit 12, a map information storage unit 14, and a control unit 16.

Here, the user interface unit 11, the location detection unit 12, and the map information storage unit 14 are the same as those in the first embodiment described above, so they are assigned the same reference numerals and their detailed descriptions are omitted.

When a destination is input from the user interface unit 11, the control unit 16 transmits the input destination to the main server 20.

In addition, when the control unit 16 receives the route to the destination from the main server 20, it displays the route to the destination through the user interface unit 11, maps the location of the vehicle to the map, and displays it on the screen.

In this process, the actual location and the vehicle location detected by the location detection unit 12 may be different due to environmental factors such as the performance of the GPS/DR module, expensive buildings, or upper/lower roads, resulting in inaccurate map matching. there is.

Accordingly, when the user drags the vehicle symbol, the control unit 16 moves the vehicle symbol according to the user's drag direction. In this process, when the own vehicle symbol is dropped, the control unit 15 detects the correction position corresponding to the location where the own vehicle symbol was dropped through the map information storage unit 14, sets the detected correction position as the own vehicle location, and sets this own vehicle location. is delivered to the main server 20.

In this case, when the control unit 16 determines that the vehicle symbol is being dragged as in the first embodiment described above, the control unit 16 changes the shape or size of the vehicle symbol, displays the vehicle symbol in three dimensions, or adjusts the transparency of the vehicle symbol so that the user can It allows you to recognize that the vehicle symbol drag and drop function has started and allows you to accurately match the road on the map.

In addition, the control unit 16 processes the candidate road that matches the own vehicle symbol as an event while the own vehicle symbol is being dragged, allowing the user to recognize which road it is matched to when dropping the own vehicle symbol. For example, the control unit 16 selects a matching road by highlighting the point where the vehicle symbol is located, changing the road color, changing the road width, displaying road name or road number information, and displaying height difference information with the existing matching road. Ensure that users can clearly perceive it.

Afterwards, the control unit 16 receives the route to the destination from the main server 20 and displays the route through the user interface unit 11.

That is, when the user moves the vehicle symbol through the user interface unit 11, the control unit 16 detects the correction position corresponding to the dragged and dropped point, sets this correction position as the vehicle location, and sends it to the main server 20. ), and then the route to the destination searched based on the vehicle location is received from the main server 20 and displayed through the user interface unit 11.

In this case, the control unit 16 can specify the desired direction in the process of dragging the own vehicle symbol. That is, the control unit 16 analyzes the drag trajectory in the process of dragging the own vehicle symbol and transmits this drag trajectory to the main server 20. Accordingly, the main server 20 can recognize the drag direction based on the drag trajectory received from the control unit 16 and recognize this drag direction as the driving direction of the vehicle at the corresponding location.

Meanwhile, the main server 20 includes an error prediction point storage unit 21, an error prediction point registration unit 22, a map database unit 23, a route search unit 24, and a control server 25.

The error prediction point storage unit 21 stores the error prediction point. The expected error point is a point where there is a possibility of inaccurate map matching due to environmental factors such as high buildings or upper/lower roads, and is set in advance.

The error expected point register 22 registers the error expected point in the error expected point storage unit 21 . When the expected error point registration unit 22 receives the vehicle location set as the correction position from the vehicle terminal 10, it stores this vehicle location as the expected error point in the error expected point storage unit 21. That is, the error prediction point can be updated depending on whether the correction position is transmitted from the vehicle terminal 10.

The route search unit 24 searches the route to the destination. When the destination is delivered from the vehicle terminal 10, the route search unit 24 uses map information from the map database unit 23 based on the location of the vehicle detected by the position detection unit 12 of the vehicle terminal 10. to find the route to the destination.

The map database unit 23 stores map information.

When the destination is delivered from the vehicle terminal 10, the control server 25 searches for a route to the destination through the route search unit 24. In this case, the route search unit 24 stores the vehicle location received from the vehicle terminal 10 (either the vehicle location detected by the position detection unit 12 or the vehicle location set as the correction position) and the map information storage unit 14. ) to find the route to the destination using the map information stored in .

The control server 25 delivers the route discovered by the route search unit 24 to the vehicle terminal 10 and various necessary information related to this route to the vehicle terminal 10.

During this process, errors may occur between the actual location and the detected own vehicle location due to environmental factors such as the performance of the GPS/DR module, elevated buildings, or upper/lower roads, resulting in inaccurate map matching.

Accordingly, when the user drags the vehicle symbol, the control unit 16 of the vehicle terminal 10 moves the vehicle symbol according to the user's drag direction as described above, and when the vehicle symbol is dropped, the control unit 15 moves the vehicle symbol. The correction position corresponding to the dropped position is detected through the map information storage unit 14, the detected correction position is set as the vehicle location, and this vehicle location is transmitted to the main server 20.

Here, the control unit 16 of the vehicle terminal 10 detects the point within the link closest to the dropped location as the correction location, thereby guiding the vehicle to be accurately located on the road.

As the control server 25 receives the vehicle location set as the correction position from the vehicle terminal 10, the control server 25 uses this vehicle location to search for a route to the destination through the route search unit 24, and connects the searched route to the vehicle. It is transmitted to the terminal 10.

Furthermore, the control server 25 searches for a route periodically or aperiodically to guide the route to the vehicle terminal 10 and delivers the searched route to the vehicle terminal 10.

In this process, if the own vehicle position detected by the position detection unit 12 is within the setting range set around the expected error point, the control server 25 determines a plurality of routes based on each candidate road according to the expected position error. After searching in advance, when the user drags the vehicle symbol and the vehicle location set as the correction position is transmitted, the control server 25 sends the path corresponding to the vehicle location among the pre-searched paths to the vehicle terminal 10. Deliver.

In this case, the control server 25 highlights each of the above-mentioned candidate roads when the vehicle position detected by the position detection unit 12 is within a setting range set around the error expected point, allowing the user to use the user interface unit ( 11), so that the candidate road can be easily recognized and easily dragged.

Meanwhile, when the vehicle location set as the correction position in the above process is transmitted, the control server 25 registers the vehicle location as the error expected point through the error expected point register 22. Based on this, the control server 25 can guide the route to the destination through the route search unit 24 described above.

In another embodiment, the control unit 16 may analyze the drag trajectory in the process of dragging the own vehicle symbol and transmit this drag trajectory to the main server 20, and the control server 25 may transmit the drag trajectory from the control unit 16. Based on the received drag trajectory, the drag direction can be recognized, this drag direction can be recognized as the vehicle's driving direction at that location, and the path to the destination can be searched based on the vehicle's driving direction.

Figure 6 is a flowchart showing an example of a route guidance method according to a second embodiment of the present invention.

Referring to FIG. 6, when the destination is delivered from the vehicle terminal 10, the control server 25 controls the route search unit 24 to determine the vehicle location detected by the position detection unit 12 of the vehicle terminal 10. The route to the destination is searched using the map information stored in the map information storage unit 14, and the searched route is transmitted to the control unit 16 of the vehicle terminal 10 (S200). At this time, the control server 25 may also transmit various necessary information related to the route discovered by the route search unit 24 to the vehicle terminal 10.

As described above, in the process of searching for a route based on the location of the vehicle detected by the position detection unit 12 of the vehicle terminal 10 and transmitting it to the vehicle terminal 10, the control server 25 determines the location of the vehicle. It is determined whether it is within the setting range set around the expected error point (S210).

As a result of the determination in step S210, if the vehicle position detected by the position detection unit 12 is not within the setting range set around the error expected point, the control server 25 returns to the above-mentioned step S200. .

On the other hand, as a result of the determination in step S210, if the own vehicle position detected by the position detection unit 12 is within the set range centered on the expected error point, the control server 25 selects each candidate road according to the expected position error. Based on this, multiple paths are searched in advance (S220).

Afterwards, the user drags the own vehicle symbol to determine whether the own vehicle location set as the correction position is transmitted (S230). As a result of the determination, if the own vehicle location set as the correction position is transmitted, the control server 25 selects the corresponding vehicle among the pre-searched paths. The path corresponding to the location is transmitted to the vehicle terminal 10 (S250).

In this case, the control server 25 highlights each of the above-mentioned candidate roads when the vehicle position detected by the position detection unit 12 is within a setting range set around the error expected point, allowing the user to use the user interface unit ( 11), so that the candidate road can be easily recognized and easily dragged.

On the other hand, if the vehicle location set as the correction position is not transmitted as a result of the determination in step S230, the control server 25 determines that the vehicle location detected by the position detection unit 12 is outside the setting range set around the error expected point. (S240).

If the determination in step S240 is outside the set range of the error expected point, that is, if the own vehicle position set as the correction position is not delivered and is outside the error expected point, the control server 25 sets the user's own vehicle symbol at the error expected point. Since it was not dragged, it returns to step (S200).

On the other hand, if it does not deviate from the setting range of the error expected point, that is, if it does not deviate from the error expected point without transmitting the own vehicle position set as the correction position, it returns to the above step (S230).

Accordingly, the vehicle terminal 10 outputs the route received from the control server 25, and thus the user can be guided to the normal route without delay even at the point where an error is expected.

Figure 7 is a flowchart showing another example of the route guidance method according to the second embodiment of the present invention.

Referring to FIG. 7, when the destination is delivered from the vehicle terminal 10, the control server 25 controls the route search unit 24 to enter the location of the vehicle received from the vehicle terminal 10 and the map database unit 23. The route to the destination is searched using the stored map information, and the searched route is transmitted to the vehicle terminal 10. At this time, the control server 25 may further transmit various necessary information related to the route discovered by the route search unit 24 to the vehicle terminal 10.

The control unit 16 of the vehicle terminal 10 outputs the route received from the main server 20 through the user interface unit 11 and guides the user on the route to the destination (S300).

Meanwhile, in the above process, an error may occur between the actual vehicle location and the vehicle symbol on the map due to environmental factors such as the performance of the GPS/DR module, expensive buildings, or upper/lower roads, resulting in inaccurate map matching.

Accordingly, the control unit 16 determines whether the user drags the vehicle symbol displayed through the user interface unit 11 (S310), and as a result of the determination, if the user drags the vehicle symbol, the control unit 15 moves the vehicle symbol according to the dragging direction. Move it.

In this case, the control unit 16 changes the shape or size of the vehicle symbol, displays the vehicle symbol in three dimensions, or adjusts the transparency of the vehicle symbol so that the user can recognize that the vehicle symbol drag and drop function has started. and accurately matches roads on the map. In addition, the control unit 16 highlights the road at the point corresponding to the position of the vehicle symbol on the map, changes the road color, changes the width of the road, displays road name or road number information, displays information on the height difference with the existing matching road, etc. This allows the user to clearly recognize the matching road.

Meanwhile, in the process of moving the own vehicle symbol, if the own vehicle symbol is dropped, the control unit 16 detects the correction position corresponding to the location where the own vehicle symbol was dropped in the map information storage unit 14, and stores the detected correction position as the own vehicle location. Set to (S330). At this time, the control unit 16 can detect the position within the link closest to the dropped point as the correction position.

Next, the control unit 16 transmits this vehicle location to the main server 20 (S340).

As the control server 25 of the main server 20 receives the vehicle location from the vehicle terminal 10, it searches the route to the destination through the route search unit 24 using the vehicle location (S350), The discovered route is transmitted to the vehicle terminal 10 (S360).

The control unit 16 of the vehicle terminal 10 outputs the route to the destination received from the main server 20 through the user interface unit 11 and guides the user on the route to the destination (S370).

In this case, the control server 25 may transmit necessary information related to the discovered route to the vehicle terminal 10, and the control unit 16 of the vehicle terminal 10 may transmit the necessary information received from the main server 20 to the user. It can be displayed along with the route through the interface unit 11.

In this way, the route guidance device according to an embodiment of the present invention allows the user to accurately receive the route to the destination and necessary information by directly dragging the own vehicle symbol to the correction position.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely illustrative, and those skilled in the art will recognize that various modifications and other equivalent embodiments can be made therefrom. You will understand. Therefore, the true technical protection scope of the present invention should be determined by the scope of the patent claims below.

10: Vehicle terminal
11: User interface unit
12: Position detection unit
13,24: Path search unit
14: Map information storage unit
15,16: Control unit
20: Main server
21: Error expected point storage unit
22: Error expected point register
23: Map database section
25: Control server

Claims (18)

A map information storage unit that stores map information;
A user interface unit that displays a vehicle symbol on a map to guide the route to the destination and provides a user interface; and
When the own vehicle symbol is dragged through the user interface unit, the correction position corresponding to the location of the own vehicle symbol is detected using the map information stored in the map information storage unit, and the detected correction position is set as the own vehicle location to map the vehicle. It includes a control unit that performs matching,
In the process of dragging the vehicle symbol, the control unit analyzes the trajectory of the drag to recognize the drag direction, recognizes the drag direction as the driving direction of the vehicle, and searches for a path to the destination,
The route guidance device wherein the control unit processes candidate roads matching the own vehicle symbol as events while the own vehicle symbol is dragged, so that the user can recognize the matching road when the own vehicle symbol is dropped.
The method of claim 1, further comprising a route search unit for searching a route to a destination using map information stored in the map information storage unit, wherein the control unit searches for a route from the correction location to the destination through the route search unit. A route guidance device characterized in that the searched route is then displayed through the user interface unit.
The route guidance device according to claim 1, wherein when the own vehicle symbol is dragged and dropped, the control unit detects the correction position based on the location where the own vehicle symbol is dropped.
The route guidance device according to claim 1, wherein when the own vehicle symbol is dragged and dropped, the control unit recognizes the position within the link closest to the dropped point as the correction position.
The method of claim 1, wherein the control unit changes at least one of the shape and size of the vehicle symbol while dragging the vehicle symbol, expresses the vehicle symbol in three dimensions, or adjusts transparency of the vehicle symbol. Characterized by a route guidance device.
The method of claim 1, wherein while dragging the vehicle symbol, the control unit highlights the point where the vehicle symbol is located, changes road color, changes road width, displays road name or road number information, and height difference information with an existing matching road. A route guidance device characterized in that it performs at least one of the following indications.
A map information storage unit that stores map information;
a route search unit that searches a route to a destination using the map information stored in the map information storage unit;
A user interface unit that displays a vehicle symbol on a map to guide the route to the destination and provides a user interface; and
When the own vehicle symbol is dragged through the user interface unit, the correction position corresponding to the location of the own vehicle symbol is detected using the map information stored in the map information storage unit, and the detected correction position is set as the own vehicle location to be used as the main vehicle location. A control unit that transmits data to a server and displays the route to the destination received from the main server through the user interface unit,
The control unit analyzes the drag trajectory in the process of dragging the vehicle symbol and transmits the drag trajectory to the main server,
The main server recognizes the drag direction based on the drag trajectory received from the control unit, recognizes the drag direction as the driving direction of the vehicle, and searches for a route to the destination.
The route guidance device wherein the control unit processes candidate roads matching the own vehicle symbol as events while the own vehicle symbol is dragged, so that the user can recognize the matching road when the own vehicle symbol is dropped.
The route guidance device according to claim 7, wherein when the own vehicle symbol is dragged and dropped, the control unit detects the correction position based on the location where the own vehicle symbol is dropped.
The route guidance device according to claim 7, wherein when the own vehicle symbol is dragged and dropped, the control unit recognizes the position within the link closest to the dropped point as the correction position.
The method of claim 7, wherein the control unit changes at least one of the shape and size of the vehicle symbol while dragging the vehicle symbol, expresses the vehicle symbol in three dimensions, or adjusts transparency of the vehicle symbol. Characterized by a route guidance device.
The method of claim 7, wherein while dragging the vehicle symbol, the control unit highlights the point where the vehicle symbol is located, changes road color, changes road width, displays road name or road number information, and height difference information with an existing matching road. A route guidance device characterized in that it performs at least one of the following indications.
The method of claim 7, wherein the control unit analyzes a drag trajectory in the process of dragging the own vehicle symbol, transmits the drag trajectory to the main server, and transmits a route from the main server to a destination set based on the drag trajectory. A route guidance device characterized in that it receives the information and outputs it through the user interface unit.
An error expected point storage unit that stores a preset error expected point;
A map database unit that stores map information;
a route search unit that searches a route to a destination using map information stored in the map database unit; and
If the position of the vehicle detected by the position detection unit of the vehicle terminal is within the set range set around the expected error point, the route is searched through the route search unit based on each candidate road according to the expected position error, and then When the vehicle location set as the correction position is transmitted from the vehicle terminal, a control server that transmits to the vehicle terminal a path corresponding to the vehicle location set as the correction position among the paths searched through the route search unit,
The control server receives the drag trajectory of the own vehicle symbol from the vehicle terminal, recognizes the drag direction based on the drag trajectory received from the vehicle terminal, and recognizes the drag direction as the vehicle's driving direction to determine the route to the destination. While exploring,
The vehicle terminal processes the candidate road matching the own vehicle symbol as an event while the own vehicle symbol is dragged, so that the user can recognize the matching road when the own vehicle symbol is dropped.
The route guidance device according to claim 13, further comprising an error expected point registration unit that registers the error expected point in the error expected point storage unit.
The route guidance device according to claim 14, wherein the expected error point registration unit updates the expected error point depending on whether the location of the own vehicle symbol is transmitted from the vehicle terminal.
The route guidance device according to claim 13, wherein the own vehicle location is a corrected position detected based on a position where the own vehicle symbol is dragged and dropped from the vehicle terminal.
The route guidance device according to claim 13, wherein the location of the vehicle includes a location within the link closest to a point where the vehicle symbol is dragged and dropped from the vehicle terminal.
The method of claim 13, wherein the control server highlights each of the candidate roads through the vehicle terminal when the own vehicle location detected by the position detection unit of the vehicle terminal falls within a set range set around the error expected point. A route guidance device characterized in that.

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