KR20120067173A - Navigator having data division download and operating method thereof - Google Patents

Abstract

PURPOSE: A navigator having a data division downloading function and an operating method thereof are provided to obtain the convenience of updating by downloading update information of a navigator using a wireless communication and to minimize an updating time. CONSTITUTION: A navigator having a data division downloading function comprises a first storing unit, a second storing unit, an update manger(121), and a control unit(120). The first storing unit stores operation information required for operating a navigator. The second storing unit stores the operation information received through a wireless communication method. The update manager is connected to an update server supplying update information of the operation information through the wireless communication method, thereby dividing and downloading the update information in the second storing unit. The update manager updates the operation information of the first storing unit using the update information stored in the second storing unit according to a selection of a user. The control unit loads up-to-date information by comparing the data stored in the first and second storing units to provide the operation information based on an input of the selection of the user.

Description

Navigator having data division download and operating method

The present invention relates to a navigator having a data division download function and a method of operating the same, and more particularly, to download a vast amount of operational data including map data for navigator operation in a distributed manner, maximizing the stability of the operation and the possibility of real-time application. The present invention relates to a navigator having a data division download function and a method of operating the same.

Due to the development of wireless devices and wireless communication, drivers can now be guided through the GPS communication method by installing a navigator on the vehicle, and the navigator provides additional information on various facilities located on the travel route as well as a simple travel route. Therefore, various information related to safe driving or driving of the user can be obtained.

That is, the navigator includes map (MAP) information and route information on a road network located on the map information as operational information, and points of interest (POI) information such as address information, facility information, and telephone number information. In addition to the operation information, based on the POI information, the navigator may receive the destination information from the driver to guide the route, or guide the driver to various facilities and convenience information located on the road.

As described above, the navigator provides various conveniences for driving, but since the actual background, roads, and various facilities are continuously changed, various operational information stored in the navigator may be different from actual information and time passes. Accumulate continuously.

In fact, the length of the road that changes every year is about 8,000 km, the information of facilities changes every year is 450,000, the number of shops that change every year is 25%, and the number of unmanned camera information is about 40 each month, 500 cases per year Is changed. Therefore, in order to overcome the difference with the actual information, the navigator needs to update to reflect the continuously changed information.

However, in order to update the navigator, as shown in FIG. 1, the driver separates the removable memory 21 in which the operation information is stored from the navigator 20, connects it to a separate PC 30, and the navigator 20. Visit the homepage of the company providing the operation information of the subscription and login process to go through the method of downloading the update information (11) by wire.

Therefore, drivers often consider these procedures complicated and do not periodically update them, and they cannot use the convenience of the navigator by using the existing operation information as it is and there is a problem in that driving efficiency is also lowered accordingly.

In addition, the removable memory is frequently aged due to frequent reads and writes, so data loss frequently occurs. As a result, the removable memory has to be re-downloaded from the first update to the latest update.

An object of the present invention is to ensure the convenience of updating by allowing the update information of the navigator to be downloaded via wireless communication instead of the wired update using a conventional PC.

In addition, an object of the present invention is to maximize the update efficiency by minimizing the update process time for the navigator supporting the split download in the download of the update information via wireless communication.

In addition, an object of the present invention is to provide an update method that can prevent aging due to frequent read / write of a memory card that occurs during the update process of the navigator, thereby maximizing operation stability and real-time applicability of the navigator.

The navigator having a data division download function according to the present invention for achieving the above object comprises a first storage unit for storing operation information which is all information necessary for the navigator operation, and updating of the operation information received by a wireless communication method. A second storage unit for storing information and an update server for providing update information of the operation information through a wireless communication method, to divide and download the update information to the second storage unit, according to a user's selection An update manager unit for updating operation information of the first storage unit with update information stored in a second storage unit, and stored in the first storage unit and the second storage unit to provide the operation information based on a selection input of a user. It includes a control unit for comparing the data to load the latest information.

In this case, the operation information may include map information for a navigation service, and the update manager unit may search for an adjacent AP (Access Point) to connect to the update server.

Meanwhile, the wireless communication method may be any one of WIFI, Wimax, Wibro, 3G, and tethering.

In addition, the update manager unit receives the data about the update information divided into packets, stores them in a file of a predetermined size, and compares the information with the operation information of the first storage unit based on the version information included in the file. It may be determined whether to store in the second storage unit according to whether or not.

In addition, the update manager unit first receives the update information of the region adjacent to the region based on the input of the user's choice or the user's location, searches for the second storage unit, and there is a part of the data for the existing update information. Receive can be done.

In addition, the update manager unit receives the divided operation information to either the first or the second storage unit to use the latest information first, and the control unit causes the disconnection of the path due to a lack of some of the update information during the path search. In this case, a guide for inducing an update can be provided or a route search can be performed based on the operation information of the first storage unit.

In addition, the controller may provide a part of the polygon by clipping or omitting some of the contents when the operation information of the area included in the path is loaded when the path spans the areas included in the plurality of split files.

The controller may be further configured to directly access the latest update information from the second storage unit when a path guide according to a user's input is input and the latest update information stored in the second storage unit are related, based on the update history of the second storage unit. Can be loaded.

In addition, the controller may restore the backed up contents or change the use target when an abnormality occurs in one of the first storage unit and the second storage unit.

In addition, the update manager may receive a user input for a region where the update information and the actual information are different from a user and transmit the received user input to the update server.

A method of operating a navigator that provides operation information which is all information necessary for the operation of the navigator for achieving the above object, the first method of the navigator accesses an update server for providing the update information of the operation information through a wireless communication method; And a second step in which the navigator checks the update notification of the update server and compares the existing update history with the existing update history, and the navigator makes a user selection input according to the update notification in the second step. A third step of determining whether or not to proceed with the update on the basis of the second step; a fourth step of the navigator receiving and storing update information provided by the update server in a third storage unit; and a third storing of the navigator on the basis of a user input Directly provide the update information from the And a fifth step of updating the existing operation of the information stored in the fourth storage section to update group information.

In this case, in the fourth step, the navigator divides and receives the data about the update information into packets, and divides and stores the data as a packet having a predetermined size and compares the operation information with the operation information of the fourth storage unit based on the version information included in the file. The storage device may determine whether the information is stored in the third storage unit according to whether the information is the latest information.

In addition, the fourth step may be characterized in that the navigator receives the remaining packets as part of the existing update information.

In addition, the navigator may further include a sixth step of restoring the contents backed up or changing the object of use when an abnormality occurs in one of the third storage unit and the fourth storage unit.

The present invention allows the update information of the navigator to be downloaded via wireless communication instead of a wired update using an existing separate PC, thereby ensuring the convenience of the update, and supporting data divisional download to immediately download only some files that have been downloaded from the update information. The navigator reflects the route guidance, thereby providing the latest route to the user.

In addition, in the download of update information through wireless communication, the navigator according to the present invention preferentially downloads and immediately reflects update information associated with a user's option or current location information, thereby minimizing update process time and immediately reflecting update. It is effective to maximize the efficiency of route guidance through.

In addition, the present invention prevents obsolescence caused by frequent read / write of a removable memory card that occurs during the update process of the navigator, and stores information updated to the latest version in both the nonvolatile memory and the removable memory so as to be stored in any one of the memories. Even if a problem occurs, the remaining update information can be used to provide path information, and redundancy can be backed up through the remaining memory to ensure redundancy. And it has the effect of maximizing the applicability in real time.

1 is a view showing an update process of the navigator according to the prior art.
2 is a diagram illustrating an update process of a navigator mounted on a vehicle according to the present invention;
3 is a block diagram of a navigator having a data division download function according to the present invention;
4 is a diagram illustrating a configuration and detailed update process of a navigator having a data division download function according to the present invention;
5 is a diagram illustrating a divisional download method of a navigator having a data division download function according to the present invention;
6 is a view showing a display for downloading guidance of a navigator with a data division download function according to the present invention;
7 is a view showing a display for regional update download of a navigator having a data division download function according to the present invention;
8 is a diagram illustrating a display of a download progress process of a navigator having a data division download function according to the present invention;
9 is a view showing an embodiment of the operation information management of the navigator having a data division download function according to the present invention.
10 is a view showing a path guidance according to the update information of the navigator having a data division download function according to the present invention.
FIG. 11 is a diagram illustrating a process for guiding a path over a plurality of tiles of a navigator having a data division download function according to the present invention; FIG.
12 is a flowchart illustrating an initial operation of a navigator having a data division download function according to the present invention.
13 is a flowchart illustrating an update process of a navigator having a data division download function according to the present invention.

According to an embodiment of the present invention, a navigator having a data division download function is mounted on a vehicle 400 as shown in FIG. 2 (a), and as shown in FIG. Access Point (500), the navigator accesses the update server that provides the update information for the operation information, which is all the information necessary for the operation of the navigator to search the adjacent AP, and then the version of the operation information previously stored in the navigator Compares the version of the update information provided by the update server with the user and informs the user of the update information and execution as shown in FIG. 2 (c), and the update is divided based on the user input as shown in FIG. When executed, the navigator splits and downloads the update information within the radio communication radius, and the divided update information is reflected to the user. It's about a navigator that can follow a guided tour.

3 is a configuration diagram of a navigator having a data division download function according to the present invention as described above, the communication unit 110 to communicate with the update server for providing update information on the operation information of the navigator 100 as shown And a non-volatile memory unit 130 embedded in the navigator 100, a removable memory unit 140 detachably mounted on the navigator, and the update server when the update server 200 of the communication unit 110 is connected. The controller 120 for activating the update manager unit 121 for receiving and managing the update information 210 of the 200 and the update information 121 of the update server 200 is checked, and the latest update information 121 is checked. ) Includes an update manager 121 stored in the nonvolatile memory 130.

In this case, the nonvolatile memory unit 130 may be a NAND memory, and the removable memory unit 140 may be at least one selected from various types of card type memory including TFLASH, SD, CF, and USB. The communication unit 110 supports at least one of WIFI, Wimax, Wibro, 3G, and tethering, and the control unit 120 checks whether a user is connected to an adjacent AP through the communication unit 110. It may be connected to the update server 200.

FIG. 4 is a diagram illustrating a detailed update process of the navigator 100 based on the configuration of FIG. 3 described above. In the case of being connected to the update server 200 as described above, the update manager 121 is the controller. Activated by 120 to perform read / write operations on the nonvolatile memory unit 130 and the removable memory unit 140, and store the operation information stored in the nonvolatile memory unit 130 and the removable memory unit 140, respectively. And compare the version information included in the update information to determine whether an update is necessary, and then receive the update information 210 through the communication unit 110.

In this case, the operation information includes map information 132, road information 131, and POI information 133, and the map information 132, road information 131, and POI information 133 are the nonvolatile memory. The unit 130 and the removable memory unit 140 may be separately stored in the map information DB, the road information DB, and the POI information DB, respectively.

In addition, the update server 200 may separately transmit the update information 210 into the map information 132, the road information 131, and the POI information 133, and accordingly, the update manager unit 121. The update information 210 may be stored separately in each DB of the nonvolatile memory unit 130. In addition, the update manager 121 may provide a temporary storage space in the nonvolatile memory unit 130 to temporarily store the update information 210.

In this case, the update manager 121 may classify the map information 132, the road information 131, and the POI information 133 in the following manner.

First, the update manager unit 121 is divided into a plurality of tiles having an entire map area, and the divided map information and road information corresponding to each tile are divided from the update server 200 into separate files. It may be received and stored in the nonvolatile memory unit 130. In addition, the POI information may be divided into regions according to 16 attempt divisions, and may be separately received by the update manager 121 and stored in the nonvolatile memory unit 130. The POI information may be a binary search. In order to support retrieval of POI information, an index file may be included.

The update manager 121 may generate matching information between the map information, the road information, and the POI information for each tile based on the update information 210 and store the matching information together with the update information 210.

The above-described partitioning configuration is only an embodiment, and the partitioning scheme may vary according to the size or range specified in the region partitioning scheme for dividing into tiles or the region-specific partitioning scheme of the POI information. It doesn't work.

Based on the above-described partitioning configuration, the update manager unit 121 may download and update map information, map information, and POI information for each tile in the following manner.

First, the file name is used. That is, the file name of the divided map information and the road information includes at least one of the coordinate information or the level information of the tiles so as to distinguish which tile the map information, the road information, and the POI information divided into the file name belong to. And type information for identifying which of the map information and road information is added to the file name. Through this, the update manager unit 121 receives and collects a single file from the update server 200 into a plurality of data having the same file name, collects the same file, and generates one file in the nonvolatile memory unit 130. The controller 120 finds a file name of existing operation information stored in the nonvolatile memory unit 130 that is matched based on the file name of the update information 210 received by the update manager 121 through the corresponding file name. The update can be easily performed.

Second, as shown in FIG. 5, the operation information is divided into a plurality of areas having a predetermined file size, and the update manager unit 121 receives the data for each area into packets and then receives data from the packets. If the data is stored in all sectors of a corresponding area, the data may be generated as a single file.

Therefore, when all files corresponding to the plurality of areas are stored, the update information is completely stored, and the update manager 121 generates index information every time a file for each area is generated, and even partially downloaded information. Make it available. In this case, the index information may include classification of road information, map information, and POI information, and matching information about which tile belongs to.

Based on the configuration as described above, the update manager 121 first downloads the notification information about the version information, file name, sector information, etc. of the update information 210 before the download as shown in FIG. In addition, the version information included in the bulletin information may be compared with the version information of the operation information stored in the nonvolatile memory unit 130 to output information that needs to be updated.

In this case, message-digest algorithm 5 (MD5) information may be used as the version information, and the MD5 information may be used to check the integrity of the downloaded update information 210. It also has the ability to split or merge files that cannot be split when an update is needed.

In addition, the update manager unit 121 may perform the selection according to a user selection when a part of the file of the update information 210 exists in the temporary storage space of the nonvolatile memory unit 130 based on the version information. Can be.

Meanwhile, as shown in FIG. 6, the update manager unit 121 determines the contents of firmware information provided by the update server 200 based on the notification information, and compares the firmware information included in the existing operation information. It is possible to provide the latest version of the firmware, and can also receive over wireless communication, as well as provide the resume function.

In addition, the control unit 120 may activate the update manager unit 121 through a user input, through which the control unit 120 operates information or update information and map information, road information, and POI information that are actually being operated. If the actual information including the different from the input the abnormal information input from the user may be transmitted to the update server 200 through the AP communicating with the communication unit 110.

In addition, as shown in FIG. 7, the update manager unit 121 determines whether the update information 210 is map information, road information, or POI information based on the notification information, and determines a tile or an area to which each information belongs. You can judge.

In this way, the update manager unit 121 may provide region-specific update information 210 by dividing the region to which the update information 210 belongs, and as shown in FIG. 8, the update information ( Some of the files 210 may be downloaded by receiving or inheriting. As described above, since the entire map area is supported as a separate file for each tile, the update manager unit 121 may receive only a file for a region desired by the user.

In this case, the update manager unit 121 may delete the file having a lower version than the current update information 210 and may download it as a file of the latest version.

When the download is completed, the control unit 120 includes the update information 210 from the temporary storage space of the nonvolatile memory unit 130 when the update information 210 is included in the searched path based on a user's input of a choice. You can load it to provide the user with route guidance.

In addition, the update manager unit 121 or the control unit 120 uses the non-volatile memory unit 130 as the update information 210 stored in the temporary storage space according to any one of restart, reset, sleep mode, or a user's selection input. It is possible to update the existing operation information stored in, and when the update is completed, the update manager unit 121 or the control unit 120 copies the updated operation information of the nonvolatile memory unit 130 to the removable memory unit 140. By replacing the existing operation information of the removable memory unit 140 with the updated operation information.

In addition, the update manager 121 stores the update manager 121 in the nonvolatile memory unit 130 based on the notification information provided by the update server 200 in order to manage the change history generated by the replacement of the existing operation information. Update history information on the change history may be generated or updated and managed.

Through this, the navigator according to the present invention can always maintain the latest version of the operation information stored in the nonvolatile memory unit 130 and the removable memory unit 140.

On the other hand, the navigator 100 is connected to the update server 200 through an external PC 300 by supporting a separate I / O interface to receive the update information 210 by wire, the control unit 120 ) May store the update information 210 received through the I / O interface in the removable memory unit 140.

Accordingly, the operation information stored in the removable memory unit 140 may be the latest version of the information than the operation information stored in the nonvolatile memory unit 130.

In this case, the controller 120 compares the version information of the operation information stored in the nonvolatile memory unit 130 and the removable memory unit 140, respectively, and accesses the memory unit in which the latest version of the operation information is stored. The latest version of the operation information may be loaded from the memory unit 140 to perform route guidance to the user.

In this case, the update manager unit 121 checks the version information included in the notification information announced by the update server 200 and compares the version of the operation information with the version of the operation information stored in the removable memory unit 140. In the lower case, it is natural to receive the update information 210 and go through the above-described process.

In addition, the removable memory unit 140 may be separated from the navigator 100 and connected to a reader of an external terminal to separately store the update information 210.

FIG. 9 is a diagram illustrating a process of managing operation information and providing information through the above-described update process of the navigator according to the present invention. As shown in FIG. 9A, the controller 120 includes a nonvolatile memory unit 130. ) And updated operation information to be stored in the removable memory unit 140 or replace the existing operation information of the removable memory unit 140 with the latest operation information. Through this, it is possible to always maintain the latest version of the operating information of all the memory unit (130, 140).

Meanwhile, when the operation information of the removable memory unit 140 is updated operation information, the controller 120 may copy the operation information of the removable memory unit 140 to the nonvolatile memory unit 130.

In addition, as shown in FIG. 9B, the controller 120 backs up when an error occurs in any one of the nonvolatile memory unit 130 and the removable memory unit 140 when guiding a route according to a user input. It is possible to perform route guidance by restoring to the contents or loading another operation information that does not have an abnormality, and always maintain the latest version of operation information to provide the user with the latest path information.

This prevents the navigator from being stopped by an error of the removable memory unit 140 in which damage frequently occurs, thereby maximizing stability.

In addition, as shown in FIG. 9C, the controller 120 immediately updates the update information 210 stored in the temporary storage space of the nonvolatile memory unit 130 according to a user's selection input or automatically. Can be loaded and applied. This is because each information included in the update information 210 is configured as an independent file as described above, and thus can be independently applied to the path guide for each file.

Accordingly, when there are some files included in the update information 210 corresponding to the user input, the controller 120 may transmit the entire files of the nonvolatile memory unit 130 with respect to the individual files that have been received from the entire update information 210. Even if the reception of the update information is not completed, some completed update information may be directly reflected in the route guidance.

In addition, when the reception of the entire update information is completed, the controller 120 updates the update information 210 by overwriting the corresponding portion of the data file of the existing operation information. In this case, the update process for the existing operation information of the update information 210 is preferably performed after the control unit receives the user's selection input to confirm whether the update.

FIG. 10 is a diagram illustrating an embodiment of reflecting update information when navigating a route of a navigator according to the present invention. First, the operation information includes map information, road information, and POI information as described above. The information is generated as tiles separated by dividing the whole country into certain units, and each tile may be generated as one independent file having an independent file size as described above. In addition, the POI information is matched with respect to the corresponding tile, and the POI information may also be generated as one independent file.

That is, the map information, the road information, and the POI information corresponding to each tile may exist as an independent file, and the controller 120 updates update information on each of the map information, the road information, and the POI information corresponding to each tile. May be generated in the nonvolatile memory unit 130 as described above.

Accordingly, the controller 120 determines whether to execute the update by comparing the currently stored operation information with the version information of the update information 210 provided by the update server 200 based on the version information included in the update history information. Can be.

Based on this, referring to FIG. 10, path information included in adjacent tiles is configured to be linked so that mutual paths continue. In this case, the update manager 121 splits and downloads the update information 210 while connected to the AP, and the controller 120 directly guides a part of the update information 210 downloaded by the update manager 121. Applicable to is as described above.

Accordingly, as shown in FIG. 10A, the download of the entire update information is not completed, and thus a part of the path between adjacent tiles may be disconnected.

At this time, the control unit 120 searches for the path information included in the tile of the existing operation information corresponding to the tile from the nonvolatile memory unit 130 or the removable memory unit 140, shown in Figure 10 (b) As described above, the route may be guided to enter the route included in the road information of the existing operation information from the disconnected route.

In addition, the controller 120 may load the update manager unit 121 to search for an adjacent AP and then induce an update of the adjacent tile to the user. In this case, the update manager unit 121 may download the following two methods. Can be used.

First, the update manager 121 may preferentially download a region selected by the user. Secondly, the update manager 121 may preferentially download the update information 210 for the tiles corresponding to the adjacent areas based on the current location of the user.

In this way, the update manager unit 121 replaces the operation information on the region to which the user wants to receive route guidance with the update information 210 to secure real time, and temporarily stores the non-volatile memory unit 130. By temporarily storing only update information 210 requested by a user in a space, the controller 120 may immediately apply the route guidance from the temporary storage space to minimize the update time.

In the case of using a partially downloaded file as described above, a plurality of files may be opened and processed simultaneously.

That is, as shown in FIG. 11, when the path spans a plurality of tiles, a delay may occur because the controller 120 must simultaneously load operation information included in the plurality of tiles to perform the path guidance.

Therefore, the control unit 120 clips the part of the polygon having a relatively large capacity when loading the operation information of the plurality of tiles or omits some contents of the operation information of the tile to provide operation information included in the plurality of tiles. This can prevent the slowdown caused by simultaneous loading. The clipping may, for example, apply a Cohen-Sutherland algorithm.

12 is a flowchart illustrating a method of operating a navigator having a data division download function according to an embodiment of the present invention. As illustrated, the navigator searches for an adjacent AP and executes an update manager. Connect and download the inf file and the announcement (notice).

Thereafter, the update manager checks the version of the operation information stored in the navigator by comparing the announcement and the existing update history, and displays the contents included in the update information on the display when the version of the update information included in the announcement is high. do.

When the user input is received through the display, as shown in FIG. 13, the navigator determines whether any of the file names or sectors of the corresponding file is in the update information whether there is a file overlapping with the operation information stored in the volatile memory of the navigator. After recognizing the size of the file through the search, the update is performed if the update information is smaller than the file size provided.

At this time, if the version of the duplicate file is checked and the version is lower than the file included in the update information, the duplicate file is deleted and the file included in the update information is downloaded again from the beginning.

When the download of the update information is completed in the temporary storage space of the nonvolatile memory, the navigator terminates the update manager, updates a file corresponding to the update information of the operation information of the nonvolatile memory, and then updates the updated nonvolatile memory. The operation information may be copied to the removable memory unit to provide a redundancy function.

In this case, the navigator receives a route guide according to a user input before updating the non-volatile memory with update information, and when the navigator partially matches the route information according to the route guide and the update information, the navigator uses update information stored in the temporary storage space. Of the matching files can be loaded to provide immediate route guidance.

100: Navigator 110: communication unit
120: control unit 121: update manager
130: nonvolatile memory unit 131: road information
132: map information 133: POI information
140: removable memory 200: update server
210: Update Information 300: PC
400: vehicle 500: AP

Claims (15)

In the navigator with a data division download function,
A first storage unit which stores operation information which is all information required for the navigator operation;
A second storage unit storing update information of the operation information received by a wireless communication method;
It is connected to an update server that provides update information of the operation information through a wireless communication method, divides the update information, downloads it to the second storage unit, and updates the stored information to the second storage unit according to a user's selection. An update manager unit for updating operation information of the first storage unit; And
Control unit for comparing the data stored in the first storage unit and the second storage unit to load the latest information to provide the operation information based on the user's selection input
Navigator with a data split download function comprising a.
The method according to claim 1,
The navigator having a data division download function, characterized in that the operation information includes a map information for the navigation service.
The method according to claim 1,
And the update manager unit searches for an adjacent access point (AP) and connects to the update server.
The method according to claim 1,
The wireless communication method is a navigator having a data division download function, characterized in that any one of WIFI, Wimax, Wibro, 3G, tethering.
The method according to claim 1,
The update manager unit splits and receives data about the update information into a packet, and stores the divided information into a file having a predetermined size and compares the information with the operation information of the first storage unit based on the version information included in the file. And determining whether to store the information in the second storage unit according to the present invention.
The method according to claim 1,
The update manager first receives update information of an area adjacent to a corresponding area based on a user's selection of input or a user's location, and searches for the second storage unit to take over if there is a part of data for the existing update information. A navigator having a split download function, characterized in that performing.
The method according to claim 1,
The update manager unit receives the divided operation information in either the first or second storage unit to use the latest information first,
The controller may provide a guide for inducing an update when a path break occurs due to a lack of some of the update information during the path search, or perform a path search based on the operation information of the first storage unit. Navigator with features.
The method according to claim 1,
The controller may be configured to clip a part of a polygon or omit a part of content when loading operation information of an area included in a path when the path spans areas included in a plurality of split files. Navigator with download function.
The method according to claim 1,
The controller may be configured to load the latest update information directly from the second storage unit when a route guide according to a user's selection is input and the latest update information stored in the second storage unit are related based on the update history of the second storage unit. Navigator with split download function, characterized in that.
The method according to claim 1,
The control unit includes a navigator having a split download function, characterized in that when one of the first storage unit and the second storage unit occurs abnormally restored to the contents backed up to each other or change the use target.
The method according to claim 1,
And the update manager unit receives a user input for a region where the update information and the actual information are different from a user and transmits the user input to the update server.
In the operation method of the navigator providing operation information which is all information necessary for the operation of the navigator,
A first step of the navigator accessing an update server providing update information of the operation information through a wireless communication method;
A second step of the navigator checking the update notification of the update server and comparing the existing update history with the existing update history to determine whether to update the user;
A third step of the navigator determining whether to update based on a user selection input according to the update notification of the second step;
A fourth step of the navigator receiving and storing update information provided by the update server in a third storage unit;
A fifth step in which the navigator directly provides the update information from the third storage unit based on a user input, or updates the existing operation information stored in the fourth storage unit with the update information.
Operation method of the navigator having a data division download function comprising a.
The method of claim 12,
In the fourth step, the navigator divides and receives the data about the update information into packets, and divides the data into update files of a predetermined size and compares the operation information with the operation information of the fourth storage unit based on the version information included in the file. And determining whether to store the information in the third storage unit according to whether the information is information.
The method of claim 12,
In the fourth step, the navigator receives the remaining packets as part of the existing update information.
The method of claim 12,
And a sixth step in which the navigator recovers the contents backed up to each other or changes a user's object when one or more of the third storage unit and the fourth storage unit occur.

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