KR20190026340A - Vehicle software update system, update method of vehicle software and server - Google Patents

Abstract

According to one aspect of the present invention, provided are a vehicle software update system, vehicle software update method, and server capable of safely updating software of a navigation device with high speed and low cost using a user terminal. The vehicle software update system comprises: at least one user terminal receiving data from the server and transmitting the data to a navigation device; a navigation device receiving the data from the user terminal and updating a database; and a server communicating with the user terminal to authenticate the user terminal and transmitting the data to the user terminal.

Description

VEHICLE SOFTWARE UPDATE SYSTEM, UPDATE METHOD OF VEHICLE SOFTWARE AND SERVER,

TECHNICAL FIELD The present invention relates to a technique for efficiently updating software of a navigation device provided in a vehicle.

Recently, automobiles equipped with audio devices, video devices, navigation devices, and the like are integrated with a multimedia device. In addition to the multimedia device, the automobile also includes a body control module (BCM) for automatically adjusting the memory sheet, the room mirror position, the side mirror position and the like, a chassis control unit for controlling the steering and suspension, , A powertrain control unit (TCU) for controlling the transmission and the engine, and an engine control unit (ECU), and the like.

The automotive parts are provided with software (or firmware) for driving each system, and the software is updated to a new version for improved performance. In a conventional software update method, an external storage device such as a USB is connected to a PC to download the software, and the updated software is connected to the car. This method is time consuming and inconveniences the customer.

FOTA (Firmware Over The Air) technology, which updates software by downloading via wireless modem or Wi-Fi, is increasing in recent cars, but it is only possible with cars equipped with a modem. . Although a software update method using Wi-Fi is considered in a car without a modem, if a Wi-Fi network exposed to the public is used, information on the main ECU of the vehicle and the information in the car may be exposed to the threat of hacking.

According to an aspect of the present invention, there is provided a vehicle software update system, vehicle software update method, and server capable of reliably updating software of a navigation device at a high speed and at low cost using a user terminal.

According to an aspect, a vehicle software update system includes at least one user terminal for receiving data from a server and transmitting the data to a navigation device; A navigation device for receiving the data from the at least one user terminal and updating the database; And a server communicating with the at least one user terminal user terminal to authenticate the at least one user terminal and to transmit the data to the at least one user terminal.

Wherein the at least one user terminal comprises a first user terminal and a second user terminal, wherein the navigation device determines a priority of the first user terminal and the second user terminal based on a predetermined criterion, And transmit the priority to the server.

The server may distribute the data to the first user terminal and the second user terminal based on the priority and transmit the data.

The navigation device can determine the priority by comparing the communication speed of the first user terminal and the communication speed of the second user terminal.

The navigation device can determine the priority by comparing the communication cost of the first user terminal and the communication cost of the second user terminal.

The navigation device may determine the priority by comparing the security of the first user terminal and the security of the second user terminal.

Wherein the navigation device determines a communication state of the first user terminal and a communication state of the second user terminal, and when it is determined that the first user terminal communication state or the second user terminal communication state is blocked,

Determining a new priority,

The server may distribute the data to the first user terminal and the second user terminal based on the new priority and transmit the data.

A vehicle software update method according to an embodiment is a method for communicating with at least one user terminal, authenticating the at least one user terminal, transmitting data to the at least one user terminal, Receiving the data, and updating the database.

Wherein the at least one user terminal comprises a first user terminal and a second user terminal,

Wherein the transmitting the data to the at least one user terminal comprises determining a priority of the first user terminal and the second user terminal based on a predetermined criterion, To the user terminal and the second user terminal.

The transmitting the data to the at least one user terminal may include comparing the communication speed of the first user terminal and the communication speed of the second user terminal to determine the priority.

The transmitting the data to the at least one user terminal may include comparing the communication cost of the first user terminal and the communication cost of the second user terminal to determine the priority.

The transmitting the data to the at least one user terminal may include comparing the security of the first user terminal and the security of the second user terminal to determine the priority.

Transmitting said data to said at least one user terminal,

Determines a communication state of the first user terminal and a communication state of the second user terminal and, if it is determined that the first user terminal communication state or the second user terminal communication state is blocked, And distributing the data to the first user terminal and the second user terminal based on the new priority and transmitting the data.

According to one embodiment, a server comprises: a communication unit for communicating with at least one user terminal; And a controller for communicating with the at least one user terminal to authenticate the at least one user terminal and to transmit data to the at least one user terminal.

Wherein the at least one user terminal includes a first user terminal and a second user terminal, and the control unit distributes the data to the first user terminal and the second user terminal based on a priority determined by the navigation device .

According to the vehicle software update system, the vehicle software update method, and the server according to one aspect, the software of the navigation device can be reliably updated at a high speed and at a low cost using the user terminal.

1 is a view showing a vehicle according to an embodiment of the present invention.
Fig. 2 is a view showing the interior space of the vehicle shown in Fig. 1. Fig.
3 is a control block diagram of a vehicle software update system according to an embodiment of the present invention.
4 is a diagram illustrating a software update method of a vehicle according to an embodiment of the present invention.
5 is a diagram illustrating data according to an embodiment of the present invention.
6 is a diagram for explaining an operation of updating the database of the navigation device according to one embodiment.
7 is a diagram for explaining an operation of updating a database of a navigation device using at least one user terminal according to an embodiment.
8 and 9 are flowcharts according to an embodiment of the present invention.

Like reference numerals refer to like elements throughout the specification. The present specification does not describe all elements of the embodiments, and redundant description between general contents or embodiments in the technical field of the present invention will be omitted. The term 'part, module, member, or block' used in the specification may be embodied in software or hardware, and a plurality of 'part, module, member, and block' may be embodied as one component, It is also possible that a single 'part, module, member, block' includes a plurality of components.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only the case directly connected but also the case where the connection is indirectly connected, and the indirect connection includes connection through the wireless communication network do.

Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

Throughout the specification, when a member is located on another member, it includes not only when a member is in contact with another member but also when another member exists between the two members.

The terms first, second, etc. are used to distinguish one element from another, and the elements are not limited by the above-mentioned terms.

The singular forms " a " include plural referents unless the context clearly dictates otherwise.

In each step, the identification code is used for convenience of explanation, and the identification code does not describe the order of the steps, and each step may be performed differently from the stated order unless clearly specified in the context. have.

Hereinafter, the working principle and embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a view showing a vehicle according to an embodiment of the present invention. The vehicle 100 shown in Fig. 1 has the following structure externally.

The windshield 112 is provided on the upper front side of the main body 110 to protect the passenger from the wind while providing a front view to the passenger inside the vehicle 100. [ The outside mirror 114 provides the occupant with a side view and a side view of the vehicle 100 rearward. The outside mirrors 114 may be provided on the left and right doors 190, respectively.

The door (190) is rotatably provided on the left and right sides of the main body (110) so that the passenger can enter and exit the vehicle when the vehicle is opened. The interior of the vehicle (100) can be shielded from the outside when the door is closed. The door 190 can be locked / unlocked using the door locking device 192. The locking / unlocking of the door locking device 192 is carried out by a method in which the user approaches the vehicle 100 and directly operates the buttons or levers of the door locking device 192 and a method of operating the remote controller at a position remote from the vehicle 100. [ Or the like to remotely lock / unlock.

The antenna 152 is for receiving a telematics service and broadcasting / communication signals such as DMB, digital TV, GPS, etc., and is a multifunctional antenna for receiving various types of broadcasting / communication signals, The antenna may be a single function antenna.

The front wheel 122 and the rear wheel 124 are located in front of and behind the vehicle 100, respectively, and are provided to be rotated by receiving power from an engine (not shown).

Fig. 2 is a view showing the interior space of the vehicle shown in Fig. 1. Fig. The interior space of the vehicle 100 shown in Fig. 2 has the following structure.

The dashboard 256 is provided so as to protrude from the lower portion of the windshield 112 toward the passenger. The dashboard 256 is provided with various devices for the passengers to operate the vehicle 100. The driver can sit on the driver's seat 258 and can operate various devices installed on the dashboard 256 while looking forward.

The driver's seat 258 is a seat for the driver of the vehicle 100 to sit on. The driver's seat 258 is provided behind the dashboard 256 so that the driver can watch the various devices of the dashboard 256 and the front of the vehicle 100 in a stable posture and can operate the vehicle 100.

The cluster display unit 260 is provided on the front side of the driver's seat 258 of the dashboard 256 and displays operation information of the vehicle 100 and the like. The cluster display unit 260 may include a traveling speed gauge 260 indicating the traveling speed of the vehicle 100 and an rpm gauge 262 indicating the rotating speed of the power unit (not shown).

The navigation device 200 may be a head unit, and may be a multimedia device that performs various multimedia functions according to an operation command of a passenger. The navigation device 200 performs an audio function and a video function together with a navigation function for guiding the route. The navigation device 200 includes both audio, video, and navigation functions, but may include only some functions without including audio, video, and navigation functions.

The navigation device 200 may include a display 214 for displaying information on a road on which the vehicle 100 travels or a route to a destination that the rider wants to reach. In addition, the navigation device 200 is electrically connected to the speaker 216, so that the acoustic signal of the navigation device 200 can be transmitted to the speaker 216 and output.

In addition, the navigation device 200 may be connected to the user terminal 250 in a wired manner, such as a USB cable (Universal Serial Bus Cable) 292. Also, the navigation device 200 is capable of short-range wireless communication. And may perform short-range wireless communication by being connected to the user terminal 250 of the user in a manner such as pairing through short-range wireless communication.

The navigation device 200 may operate based on voice recognition control. To this end, a voice recognition button 204 is provided on the steering wheel 202, and a microphone 206 is provided on the upper portion of the driver's seat. The voice recognition button 204, the microphone 206, the speaker 216, and the like can be used as an auxiliary tool for voice recognition control of the navigation device 200.

As shown in FIG. 2, the navigation device 200 may be connected to the user terminals 250 so that they can communicate with each other. The user terminal 250 may be an external HDD (Hard Disk Drive), an external SSD (Solid State Device), a USB memory (Universal (Universal Serial Bus)) device or the like, as well as a portable communication / computing device such as a smart phone or a tablet An external storage device such as a serial bus memory, and the like. Also, the object Internet device (IoT Device) and the streaming service provider may be connected to the navigation device 200 as the user terminal 250. The navigation device 200 may receive the multimedia contents from the user terminal 250 and output the multimedia contents through the display 214 or the speaker 216 of the navigation device 200.

There are various methods for transmitting multimedia contents from the user terminal 250 to the navigation device 200 so that the multimedia contents are reproduced in the head unit 100. For example, the multimedia contents are transmitted from the user terminal 250 to the navigation device 200 using a wired / wireless communication channel formed between the user terminal 250 and the navigation device 200, So that the multimedia contents can be reproduced.

Alternatively, a mirroring image of the multimedia contents reproduced by the user terminal 250 may be transmitted to the navigation device 200 through the wired / wireless communication channel between the user terminal 250 and the navigation device 200 ) Display 214 of the display device. For example, when the user terminal 250 supports car mirroring such as Google's Android Auto, the video image of the video content implemented in the user terminal 250, the screen of the navigation, And may be mirrored on the display 214 of the navigation device 200.

3 is a control block diagram of a vehicle 100 software update system according to an embodiment of the present invention.

3, a vehicle 100 software update system according to an embodiment may include a server 300, a user terminal 250, and a vehicle 100.

The vehicle 100 may include a navigation device 200.

The navigation device 200 may receive the data from at least one user terminal 250 and update the database. In addition, the navigation device 200 may determine the priorities of the first user terminal 250a and the second user terminal 250b based on a predetermined criterion. The predetermined criteria may include the communication speed of the user terminal 250, the communication cost of the user terminal 250, and the security of the user terminal 250. That is, the navigation device 200 may determine the priority by comparing the communication speeds of the plurality of user terminals 250, determine the priority by comparing communication costs of the respective user terminals 250, ) May be used to determine priorities based on security. The security of the user terminal 250 means a degree of vulnerability to the security of the user terminal 250 during wireless transmission. In addition, the navigation device 200 determines the communication state of the user terminal 250, and when it is determined that the communication of the existing user terminal 250 has been blocked, the navigation device 200 can determine the priority again and resume communication. The details of the navigation device 200 will be described later. In addition, the navigation device 200 may include a database. The database (DB) includes data for implementing navigation. The database (DB) may be in the form of a memory card or a DVD (Digital Versatile Disc). Navigation data provided from a user terminal 250 connected via a wired / wireless link (for example, Android Auto) may be utilized as a navigation database (DB).

The navigation device 200 forms a screen of the navigation device 200 using data provided from a database (DB). For this purpose, navigation setting information such as a destination, a waypoint, and a route form set by the passenger is provided. In addition, in order to implement navigation, current position information of the vehicle 100 secured through communication with a GPS satellite can be provided. Meanwhile, the navigation device 200 can communicate with the server 300 to transmit the priority order.

The server 300 may include a communication unit 301 and a control unit 302.

The communication unit 301 can communicate with at least one user terminal 250. The communication unit 301 may include one or more components that enable communication with an external device, and may include at least one of a short-range communication module and a wireless communication module.

The short-range communication module uses a wireless communication network, such as a Bluetooth module, an infrared communication module, an RFID (Radio Frequency Identification) communication module, a WLAN (Wireless Local Access Network) communication module, an NFC communication module, and a Zigbee communication module, And may include various short range communication modules for transmitting and receiving. In addition to the Wifi module and the wireless broadband module, the wireless communication module may be a GSM (Global System for Mobile Communication), a CDMA (Code Division Multiple Access), a WCDMA (Wideband Code Division Multiple Access) ), Time Division Multiple Access (TDMA), Long Term Evolution (LTE), and the like.

The wireless communication module may include a wireless communication interface including an antenna and a transmitter for transmitting data. The wireless communication module may further include a data conversion module for modulating the digital control signal output from the control unit 302 through the wireless communication interface under the control of the control unit 302 into an analog type wireless signal. Meanwhile, the data may include map data for updating the map of the navigation device 200.

The control unit 302 may communicate with the at least one user terminal 250 to authenticate the at least one user terminal 250 and transmit data to the at least one user terminal 250. Also, the control unit 302 can distribute the data to the first user terminal 250a and the second user terminal 250b based on the priority determined by the navigation device 200, and transmit the data.

The control unit 302 includes a memory (not shown) for storing data for a program reproducing the algorithm or algorithm for controlling the operation of the components, and a processor (not shown) for performing the above- ). ≪ / RTI > At this time, the memory and the processor may be implemented as separate chips. Alternatively, the memory and the processor may be implemented on a single chip. The control unit 302 may be a nonvolatile memory device such as a cache, a read only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) A random access memory) or a storage medium such as a hard disk drive (HDD) or a CD-ROM, but the present invention is not limited thereto.

The user terminal 250 may include at least one user terminal 250 and is represented in FIG. 3 as a first user terminal 250a and a second user terminal 250b.

The user terminal 250 may be implemented as a computer or a portable terminal capable of accessing the server 300 and the navigation device 200 via a network. Here, the computer includes, for example, a notebook computer, a desktop computer, a laptop PC, a tablet PC, a slate PC, and the like, each of which is equipped with a WEB Browser. (PDS), a Personal Digital Assistant (PDA), an International Mobile Telecommunication (IMT), and a Personal Digital Assistant (PDS) -2000, Code Division Multiple Access (CDMA) -2000, W-CDMA (W-CDMA), WiBro (Wireless Broadband Internet) terminals, smart phones A wireless communication device and a wearable device such as a watch, a ring, a bracelet, a bracelet, a necklace, a pair of glasses, a contact lens, or a head-mounted-device (HMD).

At least one component may be added or deleted corresponding to the performance of the components of the vehicle 100 software update system shown in FIG. It will be readily understood by those skilled in the art that the mutual position of the components can be changed corresponding to the performance or structure of the system.

Meanwhile, each of the components shown in FIG. 3 refers to hardware components such as software and / or a Field Programmable Gate Array (FPGA) and an Application Specific Integrated Circuit (ASIC).

4 is a diagram illustrating a software update method of the vehicle 100 according to an embodiment of the present invention.

4 is a diagram illustrating a database updating method of the vehicle 100 according to an embodiment of the present invention. The database update of the vehicle 100 shown in Fig. 4 can be performed with the navigation device 200 of the vehicle 100, the user terminal 250, and the server 300 interconnected with each other. In particular, the navigation device 200 of the vehicle 100 and the user terminal 250 of the user may be connected to each other in the form of either a wire or a wireless. A method of updating a database (DB) of the vehicle 100 includes a user authentication process and a database (DB) update process. For reference, the navigation device 200 may be a head unit that is subject to database (DB) update in the vehicle 100. Also, the server 300 may be a remote server 300 that provides a database (DB) to be updated.

The navigation device 200 generates and transmits an authentication request to the user terminal 250 in step 502 and the user terminal 250 transmits the authentication request generated in the navigation device 200 to the server 300 (504). In this process, various information necessary for authentication can be exchanged between the navigation device 200 and the server 300 through the user terminal 250 of the user.

The server 300 analyzes the authentication request transmitted from the navigation device 200 through the user terminal 250 and transmits the authentication information when the navigation device 200 of the vehicle 100 and the user terminal 250 of the user are registered. And transmits it to the user terminal 250 (506). The user terminal 250 transmits the authentication information received from the server 300 to the navigation device 200 (508). The authentication between the navigation device 200, the user terminal 250 and the server 300 is completed by acquiring the authentication information in the navigation device 200 through the above process.

When the authentication is completed, the server 300 transmits data through the user terminal 250 (510). The user terminal 250 transmits the data transmitted from the server 300 to the navigation device 200 of the vehicle 100 (512).

In the vehicle 100, the data is decompressed via the navigation device 200 and the corresponding database (DB) is transferred to each part of the vehicle 100 to update the database (DB) in each part of the vehicle 100 (514). That is, a database (DB) update of each part of the vehicle 100 is performed by communicating with the user terminal 250 of the user between the vehicle 100 and the server 300 as an intermediary.

FIG. 5 illustrates data according to an embodiment of the present invention. FIG. 6 illustrates an operation of updating a database (DB) of the navigation device 200 according to an embodiment of the present invention.

Referring to FIG. 5, data on map information is shown. The map information may be stored in the database (DB) of the navigation device 200 of the vehicle 100. [ In addition, there is a need to update the features over time. Map information can be updated wirelessly, but partial update technology can be applied to transmit vast amount of map information. That is, the map information may require a large amount of data in units of gigabytes, and a partial update method that transmits and updates only portions different from the past map information may be used. 4, the map information on the data corresponding to the first area of the map corresponds to the first data D1, the map information on the data corresponding to the second area R2 corresponds to the second data D1, And the map information corresponding to the third area R3 corresponds to the third data D3. That is, it is possible to divide an area into a map, rather than the entire map information, and store it as data occupying the database (DB). When the navigation device 200 updates the map information of the first area R1 as described later, the server 300 may transmit the first data D1 and the navigation device 200 may transmit the second data R2 , The server 300 may transmit the second data D2.

On the other hand, when the database (DB) of the navigation device 200 is partially updated in this way, updating can be performed sequentially. That is, when the map information of the first area R1 is updated in the database DB before updating, the server 300 transmits the first data D1 and the navigation device 200 transmits the first data D1 through the user terminal 250 The database DB can be updated based on the first data D1. Then, the second data D2 and the third data D3 can be sequentially updated in the same operation. In the case of updating the map information by the above-described operation, the cycle of updating the map information can be reduced.

7 is a diagram illustrating an operation of updating a database (DB) of the navigation device 200 using at least one user terminal 250 according to an embodiment. FIG. 7A illustrates updating a database DB using one user terminal 250, and FIG. 7B illustrates updating a database using a plurality of user terminals 250. Referring to FIG.

Referring to FIG. 7A, the authenticated user terminal 250 may communicate with the server 300, and the server 300 may transmit data to the user terminal 250. FIG. 7A shows updating of the first data D1 to the third data D3. The first data D1 to the third data D3 may be transmitted to the navigation device 200 via the user terminal 250 and the navigation device 200 may update the database DB . A wireless communication network can be used for updating the database (DB) of the navigation device 200, and a detailed description of the wireless communication network will be omitted. Such a database update is also possible through a plurality of user terminals 250.

Referring to FIG. 7B, the database (DB) of the navigation device 200 is updated through a plurality of user terminals 250. The authenticated user terminal 250 may communicate with the server 300. When the navigation device 200 updates the database DB based on the first to third data D3, the first data D1 is received by the first user terminal 250a from the server 300, And the second data D2 is received from the server 300 by the second user terminal 250b and transmitted to the navigation device 200 while the third data D3 is transmitted to the third user terminal 200. [ (250c) from the server (300) and transmit it to the navigation device (200). Meanwhile, when updating a database (DB) using a plurality of user terminals 250, the navigation device 200 can determine the priority among the user terminals 250 based on a predetermined criterion. The predetermined criteria may include the communication speed, communication cost, and security of the user terminal 250. For example, if the wireless communication speed of the first user terminal 250a is V1, the wireless communication speed of the second user terminal 250b is V2, and V1 is greater than V2, It is possible to give a high priority to the first terminal 250a. The server 300 can transmit data having a larger capacity among the first data D1 and the second data D2 through the first user terminal 250a based on the priority.

In addition, the navigation device 200 can determine the priority based on the communication cost between the first user terminal 250a and the second user terminal 250b. For example, if the communication cost of the first user terminal 250a is lower than the communication cost of the second user terminal 250b, the navigation device 200 can assign a higher priority to the first user terminal 250a And the first data D1 and the second data D2, which are larger in capacity, can be transmitted through the first user terminal 250a.

In addition, the navigation device 200 can determine the priority based on the security of the first user terminal 250a and the second user terminal 250b. Security means less vulnerability to security during wireless transmission. For example, if the communication cost of the first user terminal 250a is higher than the security of the second user terminal 250b, the navigation device 200 may assign a higher priority to the first user terminal 250a And the first data D1 and the second data D2, which are larger in capacity, can be transmitted through the first user terminal 250a.

Also, during updating of the database (DB) of the navigation device 200 using the first user terminal 250a, the second user terminal 250b and the third user terminal 250c, If the communication state of one or more user terminals 250 is not smooth, the server 300 may distribute the data to be transmitted again. For example, when the second user terminal 250b can not communicate or the communication speed is significantly slowed, the server 300 stops transmitting the second data D2 to be transmitted to the second user terminal 250b And decompresses and transmits the second data D2 to the first user terminal 250a and the third user terminal 250c.

On the other hand, a predetermined criterion for determining the priority order of the user terminal 250 by the navigation device 200 is not limited as long as it can smoothly transmit the respective data.

8 and 9 are flowcharts according to an embodiment of the present invention.

Referring to FIG. 8, the first user terminal 250a and the second user terminal 250b may perform an authentication operation based on communication with the server 300 (1001). The navigation device 200 can set the priority of the authenticated first user terminal 250a and the second user terminal 250b (1002). The server 300 may update the database DB of the navigation device 200 via the first user terminal 250a and the second user terminal 250b based on the priority set as described above (1004).

Referring to FIG. 9, FIG. 9 shows a case where the user terminal 250 fails to operate normally while updating the database (DB) of the navigation device 200. The server 300 may transmit data for updating the navigation device 200 (1011). When all the user terminals 250 are operating normally, the navigation device 200 can normally receive data and update the database (DB) 1012 and 1013. However, if the user terminal 250 can not operate normally, the navigation device 200 can newly set the priority (1014). In this case, the server 300 transmits data based on the new priority, and the navigation device 200 can update the database DB based on the data (1013).

Meanwhile, the disclosed embodiments may be embodied in the form of a recording medium storing instructions executable by a computer. The instructions may be stored in the form of program code and, when executed by a processor, may generate a program module to perform the operations of the disclosed embodiments. The recording medium may be embodied as a computer-readable recording medium.

The computer-readable recording medium includes all kinds of recording media in which instructions that can be decoded by a computer are stored. For example, it may be a ROM (Read Only Memory), a RAM (Random Access Memory), a magnetic tape, a magnetic disk, a flash memory, an optical data storage device, or the like.

The embodiments disclosed with reference to the accompanying drawings have been described above. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. The disclosed embodiments are illustrative and should not be construed as limiting.

Vehicles: 100
Navigation device: 200
User terminal: 250
Server: 300
Communication department: 301
Control section: 302

Claims (14)

At least one user terminal for receiving data from a server and delivering the data to a navigation device;
A navigation device for receiving the data from the at least one user terminal and updating the database; And
And a server communicating with the at least one user terminal user terminal to authenticate the at least one user terminal and to transmit the data to the at least one user terminal.
The method according to claim 1,
Wherein the at least one user terminal comprises:
A first user terminal and a second user terminal,
The navigation device comprising:
Determining a priority of the first user terminal and the second user terminal based on a predetermined criterion, transmitting the priority to the server,
The server comprises:
And distributes and transmits the data to the first user terminal and the second user terminal based on the priority.
3. The method of claim 2,
The navigation device comprising:
And determines the priority by comparing the communication speed of the first user terminal and the communication speed of the second user terminal.
3. The method of claim 2,
The navigation device comprising:
And determines the priority by comparing the communication cost of the first user terminal and the communication cost of the second user terminal.
3. The method of claim 2,
The navigation device comprising:
And determines the priority by comparing the security of the first user terminal and the security of the second user terminal.

3. The method of claim 2,
The navigation device comprising:
Determining a communication state of the first user terminal and a communication state of the second user terminal,
When it is determined that the first user terminal communication state or the second user terminal communication state is blocked,
Determine a new priority, transmit the new priority to the server,
The server comprises:
And distributes and transmits the data to the first user terminal and the second user terminal based on the new priority.
Communicating with the at least one user terminal,
Authenticating the at least one user terminal,
Transmitting data to the at least one user terminal,
Receiving the data from the at least one user terminal, and updating the database.
8. The method of claim 7,
Wherein the at least one user terminal comprises:
A first user terminal and a second user terminal,
Transmitting said data to said at least one user terminal,
Determining a priority of the first user terminal and the second user terminal based on a predetermined criterion,
Distributing the data to the first user terminal and the second user terminal based on the priority and transmitting the data.
9. The method of claim 8,
Transmitting said data to said at least one user terminal,
And comparing the communication speed of the first user terminal and the communication speed of the second user terminal to determine the priority.
9. The method of claim 8,
Transmitting said data to said at least one user terminal,
And comparing the communication cost of the first user terminal and the communication cost of the second user terminal to determine the priority.
9. The method of claim 8,
Transmitting said data to said at least one user terminal,
And comparing the security of the first user terminal and the security of the second user terminal to determine the priority.
9. The method of claim 8,
Transmitting said data to said at least one user terminal,
Determining a communication state of the first user terminal and a communication state of the second user terminal,
When it is determined that the first user terminal communication state or the second user terminal communication state is blocked,
Determining a new priority,
And distributing the data to the first user terminal and the second user terminal based on the new priority and transmitting the data.
A communication unit for communicating with at least one user terminal;
And a controller for communicating with the at least one user terminal to authenticate the at least one user terminal and to transmit data to the at least one user terminal.
14. The method of claim 13,
Wherein the at least one user terminal comprises:
A first user terminal and a second user terminal,
Wherein,
And distributing the data to the first user terminal and the second user terminal based on the priority determined by the navigation device.

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