KR101248400B1 - navigation system displaying 3D type child POI and method for controling the same - Google Patents

Abstract

In order to efficiently search the periphery of the interest, the present invention receives the interest through the input unit, extracts the 3D mesh information corresponding to the interest display information from the road information storage unit in the form of a 3D image on the display unit Displaying the first step; A second step of determining whether there is a lower interest in the interest display information and activating a level magnification control unit if the lower interest exists; A third step of, when the level magnification control unit is selected, storing mesh information in the form of an enlarged three-dimensional image as the interest display information in a temporary storage unit and extracting the lower interest display information; And displaying the interest display information including the lower interest display information as a mesh in the form of an enlarged image, wherein a region corresponding to the lower interest display information is converted into an iconized lower interest selection unit and displayed. Provided is a control method of a navigation apparatus, in which 3D lower interest information is displayed, the lower interest information including a step is displayed.

Description

Navigation system displaying 3D type child POI and method for controling the same}

The present invention relates to a method of selecting a destination using a point of interest, and more particularly, to a control method of a navigation device in which three-dimensional sub-interest point of interest information can be efficiently searched around a point of interest.

In general, a navigation system receives current position data of a moving object such as an aircraft, a ship, or a moving object from a global positioning system (GPS) satellite floating on the earth, and provides a variety of information such as latitude, longitude, and traffic state information. Service device.

1 is a schematic diagram showing the operating principle of a general navigation system.

As shown in FIG. 1, the GPS satellites 110 transmit GPS signals, and the GPS receiver 120 mounted on the vehicle 150 may receive the GPS signals transmitted by the GPS satellites 110. In addition, the GPS signal received from the GPS receiver 120 may be processed by the microprocessor 130 to calculate the current position and speed of the vehicle 150, and may be instantaneous according to the driving of the vehicle 150. The position and velocity of are calculated to be different values.

In addition, the current location of the vehicle 150 calculated by the microprocessor 130 is displayed on the display unit 140 as a screen displaying the location on an electronic map stored in a storage medium (not shown). The display unit 140 may generally include a liquid crystal display having a touch panel that receives an input signal through a touch such as a finger on the front surface thereof.

For example, the coordinate value indicating the current position of the vehicle 150 is shown in the form of a dot, an arrow, a car, etc. on the navigation display unit through a matching operation with an electronic map made for navigation.

In addition, the position of the vehicle 150 is frequently moved by the GPS signal of the GPS satellite 110 which is periodically detected, and by outputting the instantaneous displacement of the vehicle 150 continuously on the electronic map (the vehicle ( The movement route of 150 may be determined.

On the other hand, the navigation system uses a method of displaying the optimal path from the current position of the moving object to the destination on the screen or by voice output using location information data received from GPS satellites and pre-stored map data. In detail, a technology of using point of interest (POI) information has been developed for searching for a destination, and when a name of interest is inputted to easily find a target point, simple basic information of the point of interest is extracted and displayed. Mark in wealth.

Here, in the conventional destination selection method, when a user selects one of the pre-stored points of interest information, the selected points of interest provide only the location information of the points of interest and display one coordinate value regardless of the area or the feature of the terrain. have. This is because the stored information is merely one-dimensional information such as coordinate values and accumulation, so that the user does not indicate the destination he / she wants, especially in a large area of interest, and finds a way after arriving at the point of interest. there was.

For example, if you search for a large area of interest, such as a university or industrial complex, it is divided into the main gate, the back door, and various facilities within the area of interest, and the entry paths of the facilities within the area of interest are different or far from each other. As a result, a user may spend a lot of time looking for the correct destination.

In addition, when searching for a conventional point of interest, it is impossible to check the terrain or landscape corresponding to the corresponding point of search information in advance, so that a problem that may occur when a person arrives at the wrong destination by searching for a destination that is the same as the corresponding point of interest and is completely different from the corresponding point of interest. there was.

Furthermore, in the navigation system that provides the three-dimensional terrain including the altitude, since the data of interest is composed of a combination of mesh and polygon, the amount of data information is increased, and the computation speed decreases accordingly. Added a problem that is very inconvenient to use due to the delay in searching and route guidance.

In order to solve the above problems, the present invention systematically classifies and stores the interest indication information and the lower interest indication information so as to efficiently search around the POI and provides the lower interest through the relationship information between them. The problem is to provide a control method of a navigation device that displays three-dimensional sub-interest point of interest information that can quickly search and utilize the child POI.

In order to solve the above problems, the present invention receives an interest of interest through the input unit, and extracts the three-dimensional mesh information corresponding to the interest display information from the road information storage unit to display on the display unit in the form of a three-dimensional image Stage 1; A second step of determining whether there is a lower interest in the interest display information and activating a level magnification control unit if the lower interest exists; A third step of, when the level magnification control unit is selected, storing mesh information in the form of an enlarged three-dimensional image as the interest display information in a temporary storage unit and extracting the lower interest display information; And displaying the interest display information including the lower interest display information as a mesh in the form of an enlarged image, wherein a region corresponding to the lower interest display information is converted into an iconized lower interest selection unit and displayed. Provided is a control method of a navigation device, in which three-dimensional sub-interest interest information including a step is displayed.

In the fourth step, when the lower interest selection unit is selected, a corresponding lower interest is set as a destination, and further comprising performing a route search to the destination.

In the fourth step, the 3D polygon information corresponding to the extracted lower interest information is added to the 3D mesh information included in the interest display information stored in the enlarged image form when the level magnification control unit is selected. This is preferred.

In addition, in the first step, the interest indication information includes three-dimensional mesh information for displaying the terrain and the road around the interest, and in the third step, the lower interest indication information is the interest of interest. It is preferable to include three-dimensional polygon information for the display of the lower interest of interest connected through the display information and the relationship information.

Meanwhile, the present invention stores an interest storage unit in which the interest display information is stored, a lower interest storage unit in which the lower interest display information is stored, and relationship information between the interest display information and the lower interest display information. A road information storage unit including a relationship information storage unit; Extract display information of the selected interest of interest through the input of interest from the storage of interest and output the result in a three-dimensional mesh form. If lower interest information exists in the display of interest of interest, activate a level enlargement controller and adjust the level enlargement. When the sub-interest display information is extracted from the sub-interest storage unit, the area corresponding to the sub-interest display information is output to the interest display information that is output in an enlarged mesh form. An arithmetic unit which converts to a negative part and performs display operation; A temporary storage unit that temporarily stores information in an enlarged mesh form of the interest display information when the level magnification control unit is selected; And a display unit for displaying the interest display information and the iconized lower interest selection unit in a 3D format.

Here, the interest storage unit stores three-dimensional mesh information for displaying a terrain and a road around the interest, and the lower interest storage unit includes three-dimensional polygon information for displaying the lower interest. Preferably, the relationship information storage stores information for adding 3D polygon information for displaying the lower interest to 3D mesh information for displaying the terrain and the road around the interest.

In addition, when the lower interest selection unit is selected, the operation unit sets a corresponding lower interest as a destination, and preferably performs a route search to the destination.

Through the above solution, the control method of the navigation device of the present invention provides the following effects.

First, the POI, which is excellent in computation speed for image processing, is mainly output as information of a mesh form, and the sub-interest indication information (child POI) is included only in the corresponding POI information. Since operations for image processing of the display of interest display information are separated and performed separately, unnecessary computation speed decreases when processing the display of interest display information POI and the lower interest display information POI simultaneously can be prevented. .

Second, an additional operation of converting the corresponding region of the sub-interest indication information stored as polygon-type information having a relatively large amount of computation into an iconized sub-interest selection unit is separate from the image processing operation of the initial interest display information. By doing so, it is possible to prevent a decrease in operation speed due to unnecessary operations and to improve inconvenience in use.

Third, when the lower interest selection unit displayed as an icon is selected, the corresponding lower interest is set as a destination, and the search for the route to the destination is automatically performed, thereby significantly improving the usability of the driver or the user.

1 is a schematic diagram showing the operating principle of a general navigation system.
2 is a block diagram of a navigation device displaying three-dimensional lower interest information according to an embodiment of the present invention.
3 is a block diagram illustrating a structure of a road information storage unit of a navigation device in which 3D lower interest information is displayed according to an embodiment of the present invention;
4 is a flowchart illustrating a control method of a navigation device in which 3D lower interest information is displayed according to an embodiment of the present invention.
5 is an explanatory diagram showing an operation process of a navigation device in which three-dimensional lower interest information is displayed according to an embodiment of the present invention;
6 is a flowchart illustrating a control method of a navigation device in which 3D lower interest information is displayed according to another exemplary embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the navigation device and the control method for displaying the three-dimensional lower interest information according to an embodiment of the present invention.

Here, the "navigator for displaying three-dimensional sub-interest information" described in the present invention is not limited to a vehicle navigation device, and encompasses a terminal capable of representing map information of the Internet, other maps and geographic information such as a smartphone, and the like. It is preferable to understand in the sense.

FIG. 2 is a block diagram of a navigation apparatus displaying 3D lower interest information according to an embodiment of the present invention, and FIG. 3 is a navigation apparatus displaying 3D lower interest information according to an embodiment of the present invention. It is a block diagram showing the structure of the road information storage unit.

As shown in FIGS. 2 and 3, the navigation device displaying the 3D lower interest information includes a road information storage unit 10, a calculation unit 20, a temporary storage unit 30, a display unit 27, and an input unit. It consists of 25.

Referring to FIG. 3, the road information storage unit 10 may be formed using a flash memory, such as an interest storage unit 11a, a lower interest storage unit 11b, and a relationship information storage unit 11c. It is made, including. Of course, the road storage unit 10 may further include a general storage unit 12 including information in the form of various digitized vectors including coordinate information of the terrain, roads, and main facilities.

In detail, the point of interest storage unit 11a stores point of interest display information including 3D mesh information for displaying the terrain and the road around the point of interest POI. That is, the interest indication information may be stored in a mesh data format for displaying contours by 3D rendering of the surrounding terrain corresponding to the POI, and additionally polygon information about main facilities may be stored together. It may be. In this case, storing wide and irregular three-dimensional data values such as terrain or altitude in the form of mesh information may improve convenience of modeling to facilitate data construction and reduce information data amount.

The lower interest storage unit 11b includes three-dimensional polygon information for displaying the child POI. That is, the facility corresponding to the child POI, which is elaborate in shape, separate from the interest storage unit 11a, is preferably stored in the lower interest storage unit 11b as polygonal information data. The information data in the form of polygons has an increased computational requirement and thus has a relatively low information processing speed, but is easy to set an area and iconize.

In addition, the relationship information storage unit 11c may be configured to add three-dimensional polygon information for displaying the child POI to three-dimensional mesh information for displaying the terrain and the road around the region of interest. Relationship information for matching between the interest indication information and the lower interest indication information is stored. Here, the relationship information storage unit may include relationship information including hierarchies between upper and lower interests, coordinate information specified as latitude and longitude in which the child POI indicates a position in the POI, and the lower child. It consists of attribute information representing attributes, roles, and the like of a child POI.

For example, when the interest indication information is a specific university, the main facilities in the specific university are stored as a lower interest by forming a relationship with each other as the relationship information. Therefore, when the user calls out the interest indication information from the navigation device, the lower interest indication information corresponding to the interest indication information may be extracted through an attribute or an association defined in the relation information as necessary. . In this case, the attribution information serves to classify the interests and the sub-interests according to the category or the role to which they belong. For example, a hospital or a public health center corresponds to a medical institution, and a school and a public library are classified as educational institutions. can do.

In addition, there may be additional sub-interests further under the child POI, which may be sequentially expanded as a relationship in which additional sub-interests exist in the sub-interests of each child. In this case, the relationship information may also be set step by step corresponding to the sequential expansion relationship.

Meanwhile, the operation unit 20 extracts display information of the POI selected through the input unit 25 from the POI storage unit 11a and outputs the 3D mesh in the form of a 3D mesh, and then displays the POI in the POI display information. If the sub-interest information exists, the level expansion control is activated. In addition, the operation unit 20 extracts the lower-interest interest display information from the lower-interest interest storage unit when the level expansion control unit is selected, and outputs the lower-interest interest display information to the interest display information that is output in an enlarged mesh form. The area corresponding to is converted into an iconized lower interest selection unit and displayed. In this case, the iconization means a state in which a region corresponding to the lower interest display information is generated by a user's touch and can function as an input means that can be transmitted to the operation unit.

In this way, the POI display information having excellent computation speed for image processing is mainly output as the information of the mesh form, and the image of the POI display information is included only when the POI display information is included in the POI display information. It is possible to prevent unnecessary deterioration of the operation speed by allowing an operation for processing to be additionally or separately performed. Furthermore, an additional operation of converting a corresponding region of the lower interest indication information stored as polygon-shaped information into an iconized lower interest selection unit is performed separately from the image processing operation of the initial interest indication information, resulting in unnecessary operation. Can improve the inconvenience.

In detail, the operation unit performs a series of operation processes of the navigation device and a graphic process performed with it. Here, the operation unit may be divided into a central operation unit performing an electronic program execution process of the navigation device and a graphic operation unit performing a graphic processing process, and may operate in a dual processing or a multi processing method. As described above, in the case where the operation unit is separated and each process is professionally taken care of, the three-dimensional image information having a large capacity may be appropriately processed and implemented.

On the other hand, when the level expansion control unit is selected in the temporary storage unit 30, information in the form of an enlarged mesh of the interest display information is temporarily stored. In addition, the display unit 27 displays the interest display information and the iconized lower interest selection unit in a three-dimensional form, and an input unit 25 formed of a touch panel is provided on the front of the display unit 27. Is preferred.

Herein, when the lower interest selection unit is selected, the operation unit 20 is configured to set a corresponding lower interest as a destination, and is configured to automatically perform a route search to the destination.

Hereinafter, a control method of a navigation device displaying 3D lower interest information according to an exemplary embodiment of the present invention will be described.

4 is a flowchart illustrating a control method of a navigation device in which 3D lower interest information is displayed according to an embodiment of the present invention.

As shown in FIGS. 4 and 5, first, the interest is input through the input unit through an input unit including a touch panel provided on the front of the display unit (S300). Regarding the input method of the interest, when the user inputs a consonant or the like of the interest, the names corresponding to the interests may be presented in the form of a list, and the interests desired by the user may be selected through the input unit (see 201 of FIG. 5). Here, the interest indication information includes three-dimensional mesh information for displaying the terrain and the road around the interest.

In addition, the input unit may operate by inputting a search word using a virtual keypad on the display unit or apply a voice recognition function, and a list classified according to a category using an industry type or a region name is presented and the list is displayed. The interest may be set in a manner selected by a user's touch.

As such, when the interest is input, the 3D mesh information corresponding to the interest display information is extracted from the road information storage unit and displayed on the display unit in the form of a 3D image (S310). At this time, the interest display information includes three-dimensional mesh information of the reference display object, which is a basic matter such as a terrain and a road, but exceptionally, the main facilities may be displayed through separate polygon information (FIG. 5). 210). As such, the reference display object, which occupies most of the interest display information, is imaged and displayed based on 3D mesh information, thereby speeding up the computation speed for graphic processing.

In addition, the existence of the lower interest is determined in the interest indication information (S320), and if the lower interest exists, the level expansion controller is activated (S330). In this case, it is preferable that an identifier is assigned to the interest display information corresponding to the coordinates of the lower interest, and the calculating unit may determine that the lower interest exists if the identifier exists in the interest display information. In this way, since the interest indication information does not need to include details of the lower interest indication information belonging to the interest indication information, its data capacity can be minimized, thereby increasing the computation speed for image processing.

In addition, when the location or relationship information of the lower interest is present in the interest display information, the level enlargement controller is displayed in a pop-up form on the display and the input signal can be transmitted to the calculator when touched by the user. . Of course, the level magnification control unit may be set in such a manner as to drag in the direction in which two fingers using the multi-touch function are extended on the display, or may be set in a form of inputting a voice command.

As such, when the level magnification control unit is selected (S340), mesh information in the form of an enlarged three-dimensional image as the interest display information is stored in a temporary storage unit and the lower interest display information is extracted and displayed (S350). . Here, the lower interest indication information includes three-dimensional polygon information for displaying the lower interest interest connected through relationship information such as coordinate information for matching with an identifier present in the interest indication information.

In this case, when the level magnification control unit is selected, the enlarged mesh type information of the interest display information is temporarily stored (see 215 of FIG. 5). Here, the temporary storage unit may be provided with an area allocated to the road information storage unit.

Subsequently, the interest display information including the lower interest display information is displayed as a mesh in the form of an enlarged image, and an area corresponding to the lower interest display information is converted into an iconized lower interest selection unit and displayed. 220 of FIG. 5). In detail, when the level magnification control unit is selected, the 3D polygon information corresponding to the extracted lower interest information is added to the 3D mesh information included in the interest display information stored in the form of an enlarged image in the temporary storage unit. The shape displayed in the manner is specified. Thereafter, the shape-specified area may be converted into an iconized lower-interest point selector that can be input and selectable by a user and set.

6 is a flowchart illustrating a control method of a navigation device in which 3D lower interest information is displayed according to another exemplary embodiment of the present invention. In the present exemplary embodiment, the basic configuration is the same as the above-described embodiment except for the detailed process of extracting and displaying the lower interest indication information and the part that is set as a destination when the lower interest selection unit is selected. Description is omitted.

As shown in FIG. 6, when the level magnification control unit is selected (S340), mesh information in the form of an enlarged three-dimensional image as the interest display information is stored in a temporary storage unit and lower interest display information. It is extracted (S351).

Thereafter, a shape displayed by adding 3D polygon information corresponding to the extracted sub-interest interest information to the 3D mesh information included in the interest display information stored in the form of an enlarged image is specified. . Subsequently, the lower interest selection unit set by converting the region in which the shape is specified to be input selectable by the user is displayed on the display unit together with the interest display information in the form of the enlarged image (S352).

In this case, 3D mesh information or polygon information of an area corresponding to the lower interest selection unit may be deleted from the interest display information in the enlarged image form, and 3 unique to the lower interest display information may be deleted. It is desirable to reduce the amount of data to be displayed on the display by allowing the dimensional polygon information to be replaced and inserted.

On the other hand, if the iconic lower interest selection unit is selected by the user (S355), the corresponding lower interest is set as the destination (S356), and the route guidance is performed after the route search to the destination is performed (S357). ). In this case, the road line to the searched lower interest may be highlighted from the starting point or the current location to the lower interest of the final destination. That is, the emphasis of the road line may be, for example, displaying the road line temporarily or continuously until the user arrives at a destination in red or a color that can be visually noticed to the eyes of others.

As such, as long as the lower interest selection unit is selected and displayed by the user, the corresponding lower interest is set as the destination, and the route search to the destination is automatically performed, thereby significantly reducing the convenience of use of the driver or the user. Can be improved.

As described above, the present invention is not limited to the above-described embodiments, but may be modified and implemented by those skilled in the art without departing from the scope of the claims of the present invention. Such modifications are within the scope of the present invention.

10: road information storage unit 20: arithmetic unit
25: input unit 27: display unit
30: temporary storage

Claims (7)

Receiving a region of interest through an input unit, extracting three-dimensional mesh information corresponding to the region of interest display information from a road information storage unit, and displaying the three-dimensional image in a three-dimensional image form on the display unit;
A second step of determining whether there is a lower interest in the interest display information and activating a level magnification control unit if the lower interest exists;
A third step of, when the level magnification control unit is selected, storing mesh information in the form of an enlarged three-dimensional image as the interest display information in a temporary storage unit and extracting the lower interest display information; And
A fourth step of displaying the interest display information including the lower interest display information as a mesh in an enlarged image form, wherein an area corresponding to the lower interest display information is converted into an iconized lower interest selection unit and displayed; The control method of the navigation device is displayed three-dimensional lower interest information comprising a. The method of claim 1,
In the fourth step, when the lower interest selection unit is selected, a corresponding lower interest is set as a destination, and the 3D lower interest information is further performed by performing a route search to the destination. Control method of the navigation device is displayed. The method of claim 1,
In the fourth step, the 3D polygon information corresponding to the extracted lower interest information is added to the 3D mesh information included in the interest display information stored in the enlarged image form when the level magnification control unit is selected. The control method of the navigation device is displayed three-dimensional lower interest information characterized in that. The method of claim 1,
In the first step, the POI information includes 3D mesh information for displaying the terrain and the road around the POI,
In the third step, the sub-interest interest information includes 3D polygon information for displaying the sub-interest interest connected through the interest display information and the relationship information. Control method of the navigation device is displayed. An interest storage unit for storing the interest indication information, a lower interest storage unit for storing the lower interest indication information, and a relationship information storage unit for storing relationship information between the interest indication information and the lower interest indication information; A road information storage unit including;
Extract display information of the selected interest of interest through the input of interest from the storage of interest and output the result in a three-dimensional mesh form. When the sub-interest display information is extracted from the sub-interest storage unit, the area corresponding to the sub-interest display information is output to the interest display information that is output in an enlarged mesh form. An arithmetic unit which converts to a negative part and performs display operation;
A temporary storage unit that temporarily stores information in an enlarged mesh form of the interest display information when the level magnification control unit is selected; And
And a display unit for displaying the interest display information and the iconized lower interest selection unit in a 3D format. The method of claim 5, wherein
The interest storage unit stores 3D mesh information for displaying the terrain and the road around the interest,
The lower interest store may include 3D polygon information for displaying the lower interest.
The relation information storage unit stores information for adding 3D polygon information for displaying the sub-interest to 3D mesh information for displaying the terrain and the road around the point of interest. Navigation device for displaying information. The method of claim 5, wherein
And the calculation unit sets a corresponding lower interest as a destination when the lower interest selection unit is selected, and performs navigation of a route to the destination. 3.

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