KR20110008767A - Map data update system and method thereof in navigation device - Google Patents

Abstract

PURPOSE: Map update system and method of a navigation terminal are provided to reduce the time consumption for update and to enable the rapid update for a changed area since the map data for the changed area of a map is generated and can be updated in real time. CONSTITUTION: A map update system of a navigation terminal comprises a map data providing server(100), a map data update server(200) and a navigation terminal(300). The map data providing server compares the first provided map information with the changed map information, generates the map information on the changed area and supplies it to the map data update server. The map data update server receives and gathers the map information data on the changed area from the map data providing server. The map data update server transfers to the navigation terminal using a network and the mobile communication network. The navigation terminal receives the map information of the changed area from the map data update server and updates the map information of the changed area.

Description

Map data update system and method in navigation device}

The present invention relates to a system for updating a map, and more particularly, to a system and method for updating a map of a navigation terminal which enables partial updating in real time using a small amount of map data of a changed portion of a map through a wireless network. .

In recent years, by providing traffic information to road users in real time, minimization of driving and time costs, and prevention of traffic concentration on limited roads, by dispersing vehicles as much as possible, have been provided to improve road efficiency.

In the case of a navigation terminal using such traffic information, there is a need to update an internal map for various reasons, such as the creation or deletion of a new road.

Conventionally, the operator has managed the change history by manually modifying changes to existing map data and manually recording them.

In addition, users access the website, download new map data, and use it to update the navigation terminal.

However, in the related art, when the map of the navigation terminal in service is updated, the unchanged data which does not need updating is also updated.

That is, updating all the data at once increases the burden on the terminal for the update and causes inconvenience to customers due to the use of a website.

Accordingly, there is a need for a constant map air update technology through a wireless network.

However, in order to update the map air, it is necessary to partially update the map data that has been changed due to the cost of the wireless Internet data and the update time.

An object of the present invention is to provide a map updating system and method of a navigation terminal to generate map data for a changed portion of a map, thereby enabling partial updating of the changed map.

Another object of the present invention is to provide a map updating system and method of a navigation terminal that can reduce / reduce time loss of real-time update by generating / providing map data of low capacity.

A map updating system of a navigation terminal for achieving the above object of the present invention is a map information updating system which communicates with at least one navigation terminal and updates the map information of the navigation terminal, wherein the map information and the changed map information provided first are provided. A map data providing server for generating map information on the changed portion by comparing the map information with the map data updating server; A map data update server for receiving and collecting map information data on a changed portion from the map data providing server and transmitting the received map information data to a navigation terminal using a network and a mobile communication network; And a navigation terminal configured to receive map information of the changed portion from the map data update server and update map information on the changed portion.

As an example, the map data providing server may generate map data of a changed portion of the map in the form of a shape file.

As one example, the map data providing server generates and manages one map record ID, and the map data updating server obtains additional information on the map record from the dbf file.

As an example, the map record ID includes a point of interest (POI) indicating a specific location of a map, a note (NODE) indicating a connection point and a connection of a road, a link (LINK), and elements constituting an image of the map. It is characterized by.

As an example, the map data providing server compares the contents of the shp file data before editing with the contents of the shp file data after editing, and generates the inserted, updated, and deleted data to generate the map record ID. And generating a map record ID corresponding to a predetermined area for each mesh to transmit the map data update server to the map data update server in order to access the map data on the changed part.

As one example, the navigation terminal includes a key input unit for receiving a map update command and an operation function command; A GPS receiver for receiving location information; A wireless network unit for wirelessly receiving map data from the map data update server; A map data storage unit configured to store data about an initial map and to store map data of a changed portion of a map in a mesh unit received from the map data update server; A storage unit for storing a program for displaying a map of the navigation terminal and a program and data for performing one or more functions; An audio processor and a display unit for notifying the user of whether the received map data is to be received and an update progress command through a voice or a notification message when the changed map data is received through the wireless network; And analyzing the changed record IDs of the mesh data of the map data received from the map data update server to create an old table and a new table, and inserting and updating the two tables by comparing the two tables. and a controller for generating a list of updates and deletes to perform partial update of the map.

As an example, the insert, update, and delete list may form an ID list that exists only in the old table to form a delete list, and an ID list that exists only in the new table. Create an update list by comparing the contents of map records existing in both the old table and the new table.

In the map updating method of a navigation terminal for achieving the above object of the present invention, the map information updating method for communicating with at least one navigation terminal, updating the map information of the navigation terminal,

A first step of the map data providing server comparing the initially provided map information with the changed map information to generate map information on the changed portion and providing the changed map information to the map data update server; A second step of the map data update server receiving and collecting map information data on the changed part from the map data providing server and transmitting the collected map information data to a navigation terminal using a network and a mobile communication network; And a third step of the navigation terminal receiving map information of the changed part from the map data update server and updating map information on the changed part.

As an example, the first step includes a point of interest (POI) indicating a specific position of the map and a link (NODE) and a link (LINK) indicating a connection point of a road with respect to a changed portion of the map. ) And create a shp file composed of the elements of the map image, and compare the contents of the shp file data before editing and the shp file data after editing, to insert the inserted, updated, and deleted data. It generates and assigns a map record ID, and provides the map data update server so that the map data of one region can be bundled and managed as a mesh.

As an example, the third step may include generating an old table and a new table by analyzing changed record IDs of mesh data of the map data received from the map data update server. Comparing the tables to generate an insert, update (delete) list, characterized in that for updating the map part.

According to the above configuration, the present invention generates map data for the changed portion of the map, and thus can be updated in real time, thereby reducing time loss for the update, and making it possible to quickly update the changed region of the map. Occurs.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.

1 is a block diagram illustrating a configuration of a map update system according to an exemplary embodiment of the present invention.

As illustrated in FIG. 1, a map update system configured to enable map updating of a changed portion of a map may be configured by comparing the initially provided map information with the changed map information and generating map information on the changed portion to generate a map data update server ( Map data providing server 100 and map information data for the changed portion from the map data providing server 100 provided to the received and collected, the map for transmitting to the navigation terminal using a network and a mobile communication network A data update server 200 and a navigation terminal 300 receiving map information of the changed part from the map data update server 200 and updating map information on the changed part.

The map data providing server 100 is a server of a map data provider for collecting map information on a changed region, generating changed map data, and providing the changed map data to the map data update server 200.

The map data providing server 100 of the map data provider collects map information on a changed region, links with a node of point of interest (POI) indicating a specific location of a map and a node (NODE) indicating connection points and connections of a road. (LINK) and other elements that make up the map image.

Through analysis of the above elements, insert, update, and delete information is generated to assign a map record ID.

Here, the map data for analysis may be provided in the form of a Shp File of ESRI. That is, shp, dbf, shx files are given, and the map shape shape in the shp file and additional information in the dbf file are analyzed and managed by the map data update server 200.

Shape file is the most common and old method to manage geographic information system (GIS) data that can be used in terrain-related fields such as traffic and communication by analyzing and processing geospatial data.

In other words, it is a file executed by the GIS management tool, and has shp, dbf, and shx files.

ESRI's Arc-View can be used as a representative software for managing GIS data with shape files.

As such, the change of the map data edited with Arc-View or the like is analyzed to make the data form that can be updated in the map data update server 200.

The contents of the shp file data before editing and the contents of the shp file data after editing are compared, and the inserted, updated, and deleted data are arranged and transmitted to the map data update server 200.

At this time, the reference is the map record ID. Determines insert, update, and delete information of map record based on ID.

Based on the old map data, the map record ID is found in the new map data and processed according to each situation.

To access partial map data, map data is divided into meshes and managed.

The map data providing server 100 generates information to be sent to the map data update server 200 by checking inserts, updates, and deletes of map records for each mesh.

2 is a view showing the configuration of a navigation terminal according to an embodiment of the present invention.

As illustrated in FIG. 2, the navigation terminal 300 for receiving a map data received through the map data update server 200 to perform a partial map update, and receives a map update command and an operation function command. The GPS receiver 308 for receiving the input unit 302 and the location information and the wireless network unit 304 for receiving map data wirelessly from the map data update server 200 and data for the first map are stored. A program and a function for displaying a map of the map data storage unit 306 and the navigation terminal 300 in which map data of a changed portion of a map in a mesh unit received from the map data update server are stored are stored. When the changed map data is received through the storage unit 310 storing the program and data for performing and the wireless network Analyze the changed record ID of the mesh data of the map data received from the audio processing unit 320 and the display unit 312 and the map data update server 200 for notifying the reception and the command to proceed the update through the surname or notification message. A control unit for generating an old table and a new table and comparing the two tables to generate an insert, update, and delete list to perform partial update of the map. 330.

The navigation terminal 300 includes a mobile communication terminal having a navigation function and a vehicle navigation terminal, and includes a configuration capable of connecting a wired / wireless internet and a mobile communication network.

The wireless network unit 304 may be composed of a mobile communication access module, WiBro, Bluetooth, ZigBee, WLAN network, etc. In the present invention, the wireless network unit 304 is configured as a network device capable of accessing a mobile communication network to enable a stable partial map update while moving. desirable.

The navigation terminal 200 is a ubiquitous terminal that receives and displays information on a map update in real time through an internet network or a mobile communication network, and updates an instruction even while driving through the key input unit 302 or the microphone 324. To perform a partial map update.

2 and 3 to describe the partial map update process in the navigation terminal 300.

3 is a flowchart illustrating an update process in a navigation terminal according to an exemplary embodiment of the present invention.

In an embodiment, the navigation terminal 300 will be described as an example of a mobile communication terminal with a navigation function.

Accordingly, the wireless network unit 304 may be replaced by a module for accessing a mobile communication network.

2 and 3, when information indicating that new map data exists from the map data update server 200 is received through the wireless network unit 304, a notification message is displayed through the display unit 312, or A message is output that the update data has been received by voice through the speaker 322.

The user recognizes that there is map data to update, and selects whether to update (S300).

It is preferable to configure whether or not to receive map update data according to a user's selection, so as to save packet and data call charges caused by an unnecessary area update.

In order to implement this, it is preferable to display the local information on the update notification information on the display unit 310 so that the user can recognize it.

When the update execution command is input from the user, the map data including the hash is received through the wireless network unit 304 (S310).

The controller 330 stores map data before receiving map data in an old table and generates new map data by storing it in a new table (S312).

Compare the old table with the new table to create a list for insert, update, and delete, construct an ID list existing in the old table to generate a delete list, and An insert list is generated by configuring an existing ID list (S314).

An update list is constructed by comparing the contents of the map records existing in both the old table and the new table (S316).

Subsequently, the controller 330 sequentially performs each mesh to perform a map update process on the changed portion of the map (S320).

It is desirable to configure a large amount of map data by dividing the mesh into a mesh so that the partitioning process can be performed and put it on a large memory system for fast processing.

As described above, the information on the changed part of the map is collected, a record ID is given, and the map data generated by managing the mesh by area is provided in real time through the Internet network and the mobile communication network, thereby losing time due to the map update. It is possible to reduce the cost, to reduce the cost of updating by minimizing the transmitted packets, and the effect of real-time checking / updating the change map data according to the regional information that changes with time.

The above description has been described as an example by the embodiment of the present invention, but is not limited to the above-described embodiment and those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention. . Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description in the specification but should be defined by the claims.

1 is a block diagram showing a configuration of a map update system according to a preferred embodiment of the present invention.

2 is a view showing the configuration of a navigation terminal according to an embodiment of the present invention.

3 is a flowchart illustrating an update process in a navigation terminal according to an exemplary embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: map data providing server 200: map data update server

300: navigation terminal

Claims (10)

A map information updating system for communicating with at least one navigation terminal and updating map information of the navigation terminal, A map data providing server configured to compare the initially provided map information with the changed map information to generate map information on the changed portion and provide the map information to the following map data update server; A map data update server for receiving and collecting map information data on a changed portion from the map data providing server and transmitting the received map information data to a navigation terminal using a network and a mobile communication network; And And a navigation terminal configured to receive map information of the changed portion from the map data update server and update the map information on the changed portion. The method of claim 1, And the map data providing server generates map data on a changed portion of the map in the form of a shape file. The method of claim 1, The map data providing server generates and manages one map record ID, and the map data update server obtains additional information on the map record from a dbf file. The method of claim 3, wherein The map record ID includes a POI (point of interest) indicating a specific location of a map, a note (NODE) indicating a connection point and a connection of a road, a link (LINK), and elements constituting an image of a map. Map update system of the terminal. The method of claim 1, The map data providing server compares the contents of the shp file data before editing with the contents of the shp file data after editing, generates inserted, updated, and deleted data, and assigns the map record ID to the changed data. The map update system of the navigation terminal, characterized in that for generating the map record ID corresponding to a certain area for the access to the map data for the part by mesh (mesh) to transmit to the map data update server. The method of claim 1, The navigation terminal, A key input unit for receiving a map update command and an operation function command; A GPS receiver for receiving location information; A wireless network unit for wirelessly receiving map data from the map data update server; A map data storage unit configured to store data about an initial map and to store map data of a changed portion of a map in a mesh unit received from the map data update server; A storage unit for storing a program for displaying a map of the navigation terminal and a program and data for performing one or more functions; An audio processor and a display unit for notifying the user of whether the received map data is to be received and an update progress command through a voice or a notification message when the changed map data is received through the wireless network; And Analyzes the changed record ID of the mesh data of the map data received from the map data update server to generate an old table and a new table, and compares the two tables to insert and update ( update), a control unit for generating a delete list and controlling to perform a partial update of the map. The method of claim 6, The insert, update, and delete list forms an ID list that exists only in the old table to form a delete list, forms an ID list that exists only in the new table, and creates an insert list. A map update system of a navigation terminal, characterized in that an update list is constructed by comparing contents of map records existing in both tables and new tables. A map information updating method for communicating with at least one navigation terminal and updating map information of the navigation terminal, A first step of the map data providing server comparing the initially provided map information with the changed map information to generate map information on the changed portion and providing the changed map information to the map data update server; A second step of the map data update server receiving and collecting map information data on the changed part from the map data providing server and transmitting the collected map information data to a navigation terminal using a network and a mobile communication network; And And a third step of the navigation terminal receiving map information of the changed part from the map data update server and updating map information on the changed part. The method of claim 8, In the first step, the map data providing server of a note (NODE), a link (LINK) and a link indicating a point of interest (POI) indicating a specific position of the map and a connection point of a road with respect to a changed portion of the map Creates a shp file composed of the elements that make up the image, compares the shp file data before editing with the contents of the shp file data after editing, and generates inserted, updated, and deleted data to create a map record. A map updating method of a navigation terminal, characterized in that the ID data is provided and provided to the map data update server so that the map data of one region can be bundled and managed as a mesh. The method of claim 8, In the third step, an old table and a new table are generated by analyzing changed record IDs of the mesh data of the map data received from the map data update server, and comparing and inserting the two tables. and a partial update of the map by generating an insert, update, and delete list.

Images