KR101880168B1 - Real-time map data updating method - Google Patents

Abstract

The present invention relates to a real-time map data updating method for real-time updating map data in a combination of at least one of level, tile, and layer units according to an update environment including a state of a terminal device or a network state, Collects the operation environment information of the terminal device as basic information, compares the collected operation environment information with a preset reference, and confirms the update condition of the terminal device including at least one of the running state, the traveling speed, and the network state And updates the map data stored in the terminal device by at least one of a level, a tile, and a layer unit in accordance with the identified update condition.

Description

Real-time map data updating method [0001]

The present invention relates to a system and method for updating map data of a terminal device having map data built therein in real time, and more particularly, to a system and method for updating map data of level, tile, and layer And real-time map data updating method for updating map data in real time in a combination of at least one of the units.

The car navigation system is a navigation system designed for use in automobiles. It provides a function to guide the current position based on a map or to navigate to a destination and guide the route to the destination. In recent years, And a function of guiding an optimum route to a user by reflecting information in real time is provided.

This car navigation system includes a map built-in navigation system in which a terminal device loads map data while sensing the current position based on the mounted map data and guides the route, And a map streaming type navigation system that receives and transmits the map streaming type navigation system.

Among these, the map built-in navigation system has an advantage that the operation speed is fast because it incorporates the map data. However, since the map data inevitably changes with passage of time, it is inconvenient to frequently update the built- If the map data is not updated, the changed geographical information is not reflected, so that there is a disadvantage that correct route guidance can not be performed.

The map streaming navigation system has an advantage in that it can always provide the latest map data to the user because the map data of the corresponding area is transmitted from the server through the network at the time of operation and is output. There is a disadvantage that the user can not use the route guidance service when the map data can not be received in accordance with the data communication environment or the surrounding environment.

Korean Registered Patent No. 10-0359057, Oct. 17, 2002 (Name: Method for Synchronization Between Wireless Maps and Vector Maps Duplicated in Geographic Information System Database on Wired and Wireless Internet and System for the Same)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a map- A system and method for updating real-time map data.

In particular, the present invention provides a real-time map data updating system and method for updating map data in real time in a combination of at least one of level, tile, and layer units according to an update condition including a state of a terminal device or a network state.

As a means for solving the above-mentioned problems, the present invention is characterized in that one or more physical level data representing a specific region on one or more scales, one or more tile data representing a specific region divided into a certain size, and information displayed on one map A service device for storing map data including one or more layer data each displayed by the display device and providing the map data in at least one of level, layer, and tile units upon an update request from the terminal device; And the built-in map data based on the update condition including at least one of the running state, the running speed, and the network state, And a terminal device that requests the service device to select the map data, receives the map data of the selected portion, and reflects the map data to the built-in map data.

As another means for solving the above-mentioned problems, the present invention provides an information processing method and a data processing method, comprising at least one physical level data representing a specific region on one or more scales, one or more tile data representing a specific region divided into a predetermined size, A storage unit for storing map data including at least one layer data separately displayed; A map data management unit for managing a version of the map data and determining a part to be updated in the map data according to at least one of a level, a layer, and a tile unit according to an update condition of the terminal device; And a map data transferring unit for transferring map data of the portion to be updated determined by the map data management unit from the storage unit and transmitting the map data to the terminal device.

In the service apparatus according to the present invention, the update condition may include at least one of a traveling state, a traveling speed, and a network state of the terminal device.

A service apparatus according to the present invention comprises an authentication unit for authenticating a service use right for a user of a terminal device, and a route information extracting unit for extracting route information for moving from a source to a destination according to a route information request from the terminal, And one of the path service units.

In the service apparatus according to the present invention, the map data management unit may collect the operation environment information from the terminal device in real time, and may determine the update condition based on the collected operation environment information.

According to another aspect of the present invention, there is provided a communication apparatus comprising: a communication unit for transmitting and receiving data through a network; Map data including one or more physical level data representing a specific region on one or more scales, one or more tile data representing a specific region classified by a predetermined size, and one or more layer data representing information displayed on one map A storage unit for storing the data; A route guidance function is executed based on the map data, an update part is determined in the map data by a combination of at least one of level, tile and layer unit according to the update condition, and the map data of the corresponding part is received from the service device, A control unit for reflecting on the map data; And a display unit for outputting a route guidance screen for displaying a route based on the map data according to the control of the control unit.

In the terminal device according to the present invention, the control unit may include an update unit that collects the operation environment information in real time, confirms the update condition, and determines an update part in the map data by a combination of at least one of level, tile, Management module; And a map data update module for requesting and receiving map data of an update portion corresponding to at least one combination of level, tile, and layer units determined by the update management module, and then reflecting the received map data on the stored map data.

In the terminal device according to the present invention, the storage unit further stores an update table in which an update part expressed by a combination of at least one of level, tile and layer unit is set in correspondence with a preset update condition, The update portion can be determined.

The terminal device according to the present invention may further include a GPS unit for detecting and providing at least one of a position, a moving direction, and a speed information of the terminal device for route guidance and updating part determination.

In the terminal device according to the present invention, the update condition includes at least one of a running state, a traveling speed, and a network state of the terminal device.

In addition, the present invention provides another means for solving the above-mentioned problems, including: collecting operation environment information of a terminal device as basic information for determining an update condition; Comparing the collected operation environment information with a preset reference to check an update condition of the terminal device including at least one of a running state, a traveling speed, and a network state; Selecting an update portion of the map data as a combination of at least one of a level, a tile, and a layer unit in response to the confirmed update condition; And updating the map data of the selected update portion.

According to another aspect of the present invention, there is provided an information processing method including collecting operation environment information of a terminal device, which is basic information for determining an update condition; Comparing the collected operation environment information with a preset reference to check an update condition of a terminal device including at least one of a running state, a traveling speed, and a network state; Selecting an update portion of the map data as a combination of at least one of a level, a tile, and a layer unit in response to the confirmed update condition; And a step of updating the map data of the selected update part.

The present invention provides a method for updating real-time map data by combining the existing map-embedded method and map streaming method to minimize the waiting time of a user and to always service based on the latest map data.

In particular, the present invention provides a real-time map data update method for updating map data in real time by a combination of at least one of a level, a tile, and a layer unit according to an update condition including a state of a terminal device or a network state.

1 is a block diagram showing a real-time map data updating system according to an embodiment of the present invention.
FIG. 2 is a block diagram schematically showing the structure of map data applied to the real-time map data updating system according to the present invention.
FIG. 3 is a diagram showing the structure of the map data according to the present invention in a schematic manner.
4 is a block diagram illustrating a configuration of a service apparatus in a real-time map data updating system according to an embodiment of the present invention.
5 is a block diagram illustrating a configuration of a terminal device in a real-time map data updating system according to an embodiment of the present invention.
6 is a flowchart illustrating a basic concept of a real-time map updating method according to the present invention.
7 is a flowchart illustrating a method for updating a real-time map according to an embodiment of the present invention.
8 is a flowchart illustrating a method for updating real-time map data according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description and the accompanying drawings, detailed description of well-known functions or constructions that may obscure the subject matter of the present invention will be omitted. It should be noted that the same constituent elements are denoted by the same reference numerals as possible throughout the drawings.

1 is a block diagram showing a real-time map data updating system according to an embodiment of the present invention.

Referring to FIG. 1, the real-time map data updating system according to the present invention is implemented with a service apparatus 100 and a terminal apparatus 200 for transmitting and receiving data via a network 300.

In an embodiment of the present invention, the service device 100 stores map data for displaying geographical information. In response to an update request from the terminal device 200, the service device 100 transmits the map data to one of tiles, Or more. At this time, the terminal device 200 confirms the update condition according to the operation state and the network state, and transmits an update request for the partial data of the map data to the service device 100 on a tile, level, Receives the portion of the map data transmitted from the service device 100, reflects the received map data portion in the built-in map data, and updates it in real time. In addition, the terminal device 200 provides the route guidance service on the basis of the map data updated in real time.

In another embodiment of the present invention, the service device 100 stores map data for displaying geographical information, checks real-time update conditions according to the operation state of the terminal device 200 and the network status, According to the condition, the partial data of the map data corresponding to one of the tile, the level, and the layer unit is transmitted to the terminal device 200 and the update is instructed. At this time, the terminal device 200 incorporates map data of a certain version, and performs route guidance service based on the built-in map data, Partial data of the map data corresponding to any one of the above is received, and the built-in map data is partially updated in real time.

Here, the update condition may be at least one of the running state (standby, running start, running, running completion, etc.), running speed (high speed, low speed, etc.) . ≪ / RTI >

That is, in the present invention, the above-described various update conditions are checked through the service device 100 or the terminal device 200, and based on the checked update condition, The map data is partially updated so that the route guidance can be performed.

In order to facilitate understanding of the real-time map data update according to the present invention, the map data to be applied to the present invention will be described with reference to FIG. 2 and FIG.

Referring to FIG. 2, the map data 10 applied to the real-time map data updating system according to the present invention includes map display data 11 used to implement an actual map, settings including a map color or a map level Map resource data 13 such as a landmark image or font resource displayed together with the map and address data 14 for recording address information corresponding to each coordinate of the map . Among them, the information used to implement the actual map image is the map display data 11, which mainly includes the background data 11a and the period data 11b indicating the text displayed on the map. The period data 11b is text data represented together with the geographical information of the map, for example, indicating the name of each facility or area.

This map data 10, more specifically, the map display data 11, includes L (L is a natural number equal to or larger than 1) physical level data 20 as shown in Fig. Here, the physical level refers to the scale of the map, and the L physical level data 20 represents map data representing the whole area indicated by the different scales. That is, the map data 10 according to the present invention can represent the same region on various scales. These physical level data 20 may each provide a view level of one or more different users.

In addition, the map display data 11 according to the present invention, in particular, each physical level data 20 is composed of M layer data 30 and N tile data 40. In the above, M and N mean all natural numbers of 1 or more.

The layer data 30 refers to map data corresponding to a plurality of attributes and displaying information classified into the attributes when the information represented on the map is classified into a plurality of attributes. Here, a plurality of attributes means a classification criterion for information representing a map, and the plurality of layer data 30 are superimposed in the vertical direction, and one map is completed. For example, each attribute of the plurality of layer data 30 may include an aquatic system, a boundary, a road, a building, a greenery, and the like depending on the type of the displayed information and may include contour lines, land boundaries, It can be subdivided into boundaries, administrative boundaries, expressways, general roads, main roads, subway lines, apartment complexes, school complexes, parks green spaces, public offices, general buildings, apartments and subway history.

The tile data 40 is obtained by dividing the map data horizontally by a unit of a predetermined size. Each of the tile data 40 is map data of different regions. To implement a single map.

3, each physical level data 20 is composed of one or more layer data 20 and tile data 40. The number M of layer data 20 of each physical level data 20 The number N of tile data 40 may vary depending on the physical level data 20, This is because data amounts of the respective physical level data 40 are different. Generally, the amount of information to be expressed in the map data increases in proportion to the scale size. Therefore, in the case of the physical level data 20 having a large scale, the number of tile data 40 is increased.

As described above, in the real-time updating of map data including one or more physical level data 20, one or more layer data 30, and one or more tile data 40 as described above, , A layer, and a tile unit.

Here, the portion to be updated for each update condition may be set as shown in Table 1 below.

Meanwhile, in the real-time map data updating system according to the present invention, the service apparatus 100 may be implemented as a server computing system or a cloud computing system. Here, cloud computing refers to the use of Internet technology to access virtualized IT resources such as hardware (server, storage, network), software (database, security, web server, etc.) On-demand service. In the present invention, based on the cloud computing, the service apparatus 100 transmits computing resources including at least one of software, hardware, data, and services for real-time map update to the terminal apparatus 200 via the network 10. [ . For example, the service apparatus 100 may provide a storage space in which map data or map data is stored. In addition, the service apparatus 100 can provide the terminal device 200 with a program for executing route guidance based on the map data. In addition, the service apparatus 100 may provide a real-time partial update service on map data in at least one of a level unit, a layer unit, and a tile unit according to the present invention.

Hereinafter, the detailed configuration of the service apparatus 100 and the terminal apparatus 200 in the real-time map data updating system according to the present invention will be described with reference to FIG. 4 and FIG.

In the real-time map data updating system according to an embodiment of the present invention, the main function of updating real-time map data may be implemented by the service apparatus 100. [

4, a service apparatus 100 for updating real-time map data according to an embodiment of the present invention includes an authentication unit 110, a storage unit 120, a map data management unit 130, A data transfer unit 140, and a path service unit 150.

The authentication unit 110 is a unit for authenticating a service use right for a user of the terminal device 200. The authentication unit 110 may be configured to allow only the terminal device 200 of the user . The authentication unit 110 can determine whether there is a use right, for example, through the identification information of the terminal device 200, the ID and password of the user, and the like.

The storage unit 120 stores data required for operation of the service device 100 and basically stores the latest version of the map data 10. [ In addition, the storage unit 120 may store various versions of the map data 10 together. As described above with reference to FIGS. 2 and 3, the map data 10 of the specific version stored in the storage unit 120 includes one or more physical level data 20, one or more layer data 30, And one or more tile data (30). In addition, the storage unit 120 may further store an update table indicating a part of the map data to be updated according to the predetermined update condition.

The map data management unit 130 manages the version of the map data stored in the storage unit 120 and updates the map data stored in the terminal device 200 according to the update condition of the terminal device 200 Is determined as a combination of at least one of a level unit, a layer unit, and a tile unit. The map data management unit 120 collects various environmental information related to the terminal device 200 from the terminal device 200 or another external device and confirms the update condition of the terminal device 200 or the terminal device 200 Quot;). ≪ / RTI >

The update condition is information indicating at least one of a running condition, a running speed, and a network condition. The running condition may be classified into waiting, starting, running, and running completion in association with the route guidance service, Speed can be classified into high speed and low speed corresponding to the moving speed of the terminal apparatus 200. The network status indicates a data network situation between the terminal apparatus 200 and the service apparatus 100 and is classified into good or bad .

In particular, the map data management unit 130 can determine a part to be updated according to a determined update condition by a combination of a level, a layer, and a tile unit by referring to the update table stored in the storage unit 120. [

For example, referring to Table 1, when the terminal device 200 is moving at a low speed and is in a standby state, the map data management unit 130 stores the entire The main layer data of the physical level data is extracted as a part to be updated.

The map data transmission unit 140 fetches the layer data to be updated determined by the map data management unit 130 from the storage unit 120 and transmits the layer data to the corresponding terminal device 200.

Accordingly, the terminal device 200 can update the map data by at least one of level, tile, and layer unit by changing the corresponding part of the map data embedded in the received layer data.

In addition, the route service unit 150 is a means for providing route information in response to a request from the terminal device 200. More specifically, the route service unit 150 transmits a route information request from the terminal device 200 Therefore, a route for moving from the origin to the destination is extracted and provided to the terminal device 200. The path service unit 150 may be omitted in some cases. For example, when the terminal device 200 performs the path search function, the path service unit 150 may be omitted.

In another embodiment of the present invention, the main function of the real-time map data update can be implemented through the terminal device 200. [

5, a terminal device 200 according to another embodiment of the present invention includes a control unit 210, a communication unit 220, a GPS unit 230, an input unit 240, an output unit 250, And a storage unit 260. [0033]

The control unit 210 is a means for controlling overall operation of the terminal device 200. In the present invention, a route guidance screen is output based on map data, and the operation environment is classified into a level, a tile, The map data is updated in real time in a combination of at least one of the layer units.

To this end, the control unit 210 may include an update management module 211 and a map data update module 212. The update management module 211 and the map data update module 212 may be implemented by hardware or software or a combination of hardware and software. For example, the update management module 211 and the map data update module 212 may be implemented as a combination of a microprocessor (MPU) and a program that is programmed to execute the function.

The update management module 211 is for real-time update management of map data stored in the terminal device 200. The update management module 211 checks the operating environment of the terminal device 200 in real time, A layer, and a tile unit. To this end, the update management module 211 may refer to the update table in which the updated portion of the map data for each update condition pre-set in the storage unit 260 is set.

The map data update module 212 requests and receives the data of the portion determined by the update management module 211 from the service device 100 and reflects the received data on the map data stored in the storage 260 And performs a partial update of the map data.

Accordingly, the terminal device 200 can efficiently update the map data according to the operating environment.

The communication unit 220 transmits and receives data through the network 300. More specifically, the communication unit 220 communicates with the service device 100 through the network 300 to transmit version information, operation environment information, or information of data to be updated, of the map data embedded in the terminal device 200, And receives data of a portion corresponding to at least one combination of level, tile, and layer unit from the service device 100. [ Also, the communication unit 220 may receive the corresponding route information after transmitting the route information request message including the source and destination information.

The GPS (Global Positioning System) unit 230 detects one or more of the current position, the moving direction, and the speed of the terminal device 200. The position, movement direction, and velocity information detected by the GPS unit 230 can be used to perform a navigation function in the control unit 210. [ That is, the current position and the moving direction detected by the GPS unit 230 are tracked and displayed on the map, or the current position, the moving direction, and the speed of the terminal device 200, which are searched based on the source and destination, Can be used to display together. The current position, movement direction, and speed information detected by the GPS unit 230 may be used to determine a portion to be updated on the basis of the current position in the update management module 211 of the controller 210.

The input unit 240 is a means for generating a user input signal for operating the terminal device 200, and specifically, is used to input a start point and a destination for the path search. The input unit 240 may be realized as input means of various types. For example, the input unit 240 may include at least one of a key input means, a touch input means, a gesture input means, and a voice input means. Here, the key input means generates a signal corresponding to the key according to the key operation, and corresponds to a keypad and a keyboard. The touch input means is a touch pad, a touch screen, and a touch sensor, which recognize an input operation by sensing a user's operation of touching a specific portion. The gesture input means recognizes a specific operation, such as a shaking or moving operation of the terminal device, an approach to the terminal device, a blinking operation, etc., as a specific input signal, such as a geomagnetic sensor, A sensor, a camera, an altimeter, a gyro sensor, and a proximity sensor.

The output unit 250 outputs a route guidance screen based on the map data under the control of the control unit 210. [ At this time, the background map displayed along with the path is implemented based on the map data partially updated by the control unit 210 according to the update condition.

The storage unit 260 stores the map data 10. As described with reference to FIGS. 2 and 3, the map data stored in the storage unit 260 of the terminal device 200 includes at least one physical level data 20, at least one layer data 30, Or more of the tile data 30. In addition, the storage unit 120 may further store an update table (see Table 1) indicating a portion of the map data to be updated according to the preset update condition.

Next, with reference to FIG. 6, main processes of the method for updating real-time map data according to the present invention will be described.

Referring to FIG. 6, in order to update real-time map data, operation environment information in the terminal device 200 is collected (S105). Here, the operation environment information is basic information for determining the update condition, for example, a running state value matching with the route guidance in the terminal device 200, a moving speed value of the terminal device 200, ) And the service apparatus 100, or a time required for data transmission.

Thereafter, the collected operating environment information is compared with a predetermined reference, and an update condition for the corresponding terminal device 200 is confirmed (S110). The update condition may include at least one of a running state represented by one of an atmospheric state, a running start, a running state, and a completed state, a traveling speed indicated by a high speed or a low speed, and a network state indicated as good or bad. For example, the traveling state may use the collected traveling state value as it is, and the traveling speed is determined by comparing the predetermined reference speed with the collected traveling speed value, and if the collected traveling speed value is faster than the reference speed, If it is low, it can be judged as low speed. In case of network status, too, it is bad when it is slower than the reference value or longer than the reference time by comparing the collected data transmission speed value or data transmission time with the reference value. Or when it takes less than the reference time, it can be judged as good.

When the update condition is confirmed, the update table as shown in Table 1 is referenced to select a portion of the map data to be updated in accordance with the confirmed update condition as a combination of at least one of level, tile and layer units, (S115).

The above-described processes (S104, S110, and S115) can be performed through the service apparatus 100 or the terminal apparatus 200, and the respective embodiments will be described with reference to FIGS. 7 and 8. FIG.

7 is a flowchart illustrating a method for updating real-time map data according to an exemplary embodiment of the present invention.

Referring to FIG. 7, in one embodiment of the present invention, the service apparatus 100 includes one or more physical level data 20, one or more layer data 30, And stores map data including at least one tile data 40 (S205). At this time, the map data of the service device 100 is updated in units of level, layer, and tile, and is updated whenever a predetermined period or geographic information is changed.

At this time, the terminal device 200 has built-in map data and can perform a route guidance function based on the built-in map data.

In addition, the terminal device 200 may request map update information to the service device 100 for updating the built-in map data (S210).

The step S210 is an initial operation of the terminal device 200, and may be performed once at power-on or every predetermined time according to the map update schedule. For example, on a weekly basis, or on a monthly basis.

The service apparatus 100 that has received the map update information request from the terminal apparatus 200 updates the latest version of the map data held by the service apparatus 100 and the version of the map data built in the terminal apparatus 200 into levels, Tile, and layer units, and provides the extracted update information to the terminal device 200 as a map update information response (S215). At this time, the service apparatus 100 may merely compare the version of the map data stored in the terminal device 200 with the version of the map data held by the service device 100, and may provide only the update necessity as update information.

Thereafter, the terminal device 200 can perform the route guidance function based on the built-in map data. The following updating process is performed regardless of the route guidance function of the terminal device 200.

That is, the terminal device 200 collects the operation environment information for determining the update condition in real time (S220). The operation environment information includes at least one of a running state value of the terminal apparatus 200, a moving speed value of the terminal apparatus 200, a data transmission rate value between the terminal apparatus 200 and the service apparatus 100, Time required for transmission, and the like.

Then, the terminal device 200 compares the collected operation environment information with a preset reference to determine an update condition (S110). The update condition may include at least one of a running state represented by one of an atmospheric state, a running start, a running state, and a completed state, a traveling speed indicated by a high speed or a low speed, and a network state indicated as good or bad.

When the update condition is confirmed, the terminal device 200 refers to the update table as shown in Table 1 and updates the portion of the map data to be updated in accordance with the confirmed update condition with one or more combinations of level, tile, (S230).

And requests the service apparatus 100 for data on a part to be updated (S235). At this time, one or more of level information, tile information, and layer information indicating a portion of map data to be updated can be transmitted together.

The service device 100 extracts a portion of the map data requested by the terminal device 200 on a level, tile, and layer basis, and transmits the extracted map data to the terminal device 200 (S240).

Upon receiving the requested data, the terminal device 200 reflects the received data in the built-in map data (S245).

After the partial update of the map data is performed, the route guidance function is performed based on the partially updated map data.

Lastly, FIG. 8 is a flowchart illustrating a method for updating real-time map data according to another embodiment of the present invention.

Referring to FIG. 8, in another embodiment of the present invention, the service apparatus 100 includes one or more physical level data 20, one or more layer data 30, And stores map data including at least one tile data 40 (S305). At this time, the map data of the service device 100 is updated in units of level, layer, and tile, and is updated whenever a predetermined period or geographic information is changed.

As described above, the terminal device 200 has built-in map data, and can perform a route guidance function based on the built-in map data.

At this time, the service device 100 requests the terminal device 200 to determine the update condition of the terminal device 200, and collects the operation environment information in real time (S310, S315). The operation environment information includes at least one of a running state value of the terminal apparatus 200, a moving speed value of the terminal apparatus 200, a data transmission rate value between the terminal apparatus 200 and the service apparatus 100, Time required for transmission, and the like. Here, the data transmission rate value or the data transmission time interval between the terminal device 200 and the service device 100 may be performed in the service device 100.

Then, the service device 100 compares the collected operation environment information with a predetermined reference to determine an update condition (S320). The update condition may include at least one of a running state represented by one of an atmospheric state, a running start, a running state, and a completed state, a traveling speed indicated by a high speed or a low speed, and a network state indicated as good or bad.

When the update condition is confirmed, the service device 100 refers to the update table as shown in Table 1 and updates the portion of the map data to be updated in accordance with the confirmed update condition with one or more combinations of level, tile, (S325).

Then, the service device 100 extracts data on the determined update part (S330).

Thereafter, the service device 100 requests the terminal device 200 to update the map data, and transmits the extracted data (S335). The transmission of the extracted data can be performed through the transmission permission of the terminal device 200.

Accordingly, the terminal device 200 receiving the partial data to be updated according to a combination of at least one of level, tile, and layer unit from the service device 100 updates the received part by reflecting the built-in map data ( S340).

The terminal device 200 can receive the update part data from the service device 100 at any time during the operation and reflects the received part to the map data to perform route guidance based on the partially updated map data .

The method for updating real-time map data according to the present invention can be implemented in software form readable by various computer means and recorded in a computer-readable recording medium. Here, the recording medium may include program commands, data files, data structures, and the like, alone or in combination. Program instructions to be recorded on a recording medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. For example, the recording medium may be an optical recording medium such as a magnetic medium such as a hard disk, a floppy disk and a magnetic tape, a compact disk read only memory (CD-ROM), a digital video disk (DVD) Includes a hardware device that is specially configured to store and execute program instructions such as a magneto-optical medium such as a floppy disk and a ROM, a random access memory (RAM), a flash memory, do. Examples of program instructions may include machine language code such as those generated by a compiler, as well as high-level language code that may be executed by a computer using an interpreter or the like. Such hardware devices may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be apparent to those skilled in the art. Furthermore, although specific terms are used in this specification and the drawings, they are used in a generic sense only to facilitate the description of the invention and to facilitate understanding of the invention, and are not intended to limit the scope of the invention.

According to the present invention, in the case where the terminal device embeds the map data and executes the route guidance based on the built-in map data, the built- By real-time partial updating in combination, route guidance can be provided based on the latest geographical information while minimizing user waiting time.

In addition, the present invention can update the map data based on the traveling state, the speed, and the network state of the terminal device, while updating only the minimum information necessary for the operation in real time, Is possible.

As a result, the present invention takes advantage of the existing map built-in method and map streaming method, and thus has an excellent effect of improving user convenience.

100: Service apparatus 110: Authentication unit 120:
130: map data management unit 140: map data transfer unit 150: path service unit
200: terminal device 210: control unit 220:
230: GPS unit 240: Input unit 250: Output unit
260:

Claims (7)

delete delete delete A terminal device having built-in map data divided into a plurality of layer data, which divides a plurality of tile data for displaying the map in the horizontal direction and information displayed on the map by an attribute, Collecting operation environment information in real time during execution;
Comparing the collected operation environment information with a preset reference, and determining an update condition;
Determining, by the terminal device, partial data to be updated by a combination of one or more tile data and one or more layer data, corresponding to the determined update condition; And
The terminal device requests and receives the determined partial data to be updated from the service device, and updates the built-in map data with the received partial data,
Wherein the updating condition includes a traveling state, a traveling speed, and a network state of the terminal device. delete delete delete

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