KR100795925B1 - Mobile system and lbs system and there method of serving local image by using lbs - Google Patents

Abstract

A mobile communication system, a location based server system, and a location based image information providing method are provided to enable a user to find or move to a destination place rapidly and definitely by providing image information of the destination place for a portable terminal if the portable terminal approaches the destination place. A mobile communication system comprises a service provider network(110) and a server system(120). The service provider network(110) provides location based image information near a destination place, searched for at the request of the portable terminal(100), for the server system(120) via a communication path. The server system(120) determines a current location of the portable terminal(100) by analyzing GPS(Global Positioning System) location information transmitted by the service provider network(110), and transmits the location based image information of the destination place, searched from an image database, to the portable terminal(100) if the server determines that the portable terminal(100) is near the destination place.

Description

MOBILE SYSTEM AND LBS SYSTEM AND THE METHOD OF SERVING LOCAL IMAGE BY USING LBS}

1 is a functional configuration diagram of a general mobile communication system,

2 is a functional diagram of a mobile communication system according to an embodiment of the present invention;

3 is a functional configuration diagram of a location-based server system according to an embodiment of the present invention,

4 is a flowchart illustrating a method for providing location-based image information of a mobile communication system according to the present invention;

5 is a flowchart illustrating a method of providing image information of a location-based server system of the present invention.

<Explanation of Signs of Major Parts of Drawings>

100: mobile terminal 110: business network

120: server system 130: GPS satellites

140: location server unit 150: location measuring unit

160: positioning unit 170: image server unit

180: router

The present invention relates to a mobile communication system and a location-based server system and a method for providing location-based image information, and in particular, a mobile communication system for providing location-based image information of a destination site to a mobile terminal by a location-based service (LBS); A location-based server system and a location-based image information providing method.

A mobile switching center (MSC) constituting a mobile communication system manages a plurality of base stations (BTSs), each base station forms a certain service area, and registers the location of a plurality of mobile terminals (MS) located in the service area, thereby providing a mobile state. Provides communication services to mobile terminals.

The mobile terminal (MS) is equipped with a GPS function for accurate positioning of its own, provides the location information identified by the GPS function to the mobile communication system, using the additional services of the mobile communication system to enjoy a clear movie and Do a map search.

The mobile communication system detects a more accurate position of the mobile terminal and can provide various additional services by detecting the correct position.

1 is a functional configuration diagram of a general mobile communication system.

Referring to FIG. 1, a mobile switching center (MSC) 10 controls and monitors operation of the entire mobile communication system and controls a plurality of base station (BTS) base station controllers 20 including a base station controller. And monitor.

The base station 20 forms a service area 30, monitors the movement state of a plurality of mobile terminals 40 located in the service area 30, and the mobile terminal 40. Since the unique information including the electronic serial number, telephone number, and the like is read and applied to the mobile switching center 10, the position of the mobile terminal 40 is registered by the mobile switching center 10.

When the mobile terminal 40 moves to the service area 30 of another adjacent base station 20, the process of registering a new location with the mobile switching center 10 by the base station 20 is repeated.

Since the mobile switching center 10 updates and records the location information by the movement of the mobile terminal 40 and switches the communication path by the call connection request, the mobile terminal 40 receives various communication services in the mobile state.

When the mobile terminal 40 is equipped with a global positioning system (GPS) function, the mobile terminal 40 receives precise GPS location information such as latitude, longitude, elevation, and time provided by a GPS satellite, and transmits the GPS location information through a base station to a mobile switching center ( 10), the mobile switching center 10 detects a more accurate current position of the mobile terminal 40.

As the mobile terminal 40 gradually improves in performance, the mobile terminal 40 includes a high-definition display function unit and a camera function unit, including a GPS function, and thus uses services such as multimedia communication and movie watching.

The service provider operating the mobile communication system needs to develop and provide various value-added services by integrating various functions by the high performance of the mobile terminal 40.

In particular, by utilizing the location-based services (LBS) function of the mobile communication system and by using a GPS and display function to accurately check the current location of the mobile terminal, the subscriber of the mobile terminal can be moved to a location to be moved. In the vicinity, since the site image information is provided, it is necessary to develop and provide a service for quickly and accurately identifying a target moving place.

The present invention provides a mobile communication system and location-based to quickly and accurately find or move to a destination when the mobile terminal is close to the destination using the location-based service (LBS) function of the mobile communication system provides the image information of the site It is an object of the present invention to provide a service system and a method for providing location-based image information thereof.

The present invention has been made in order to achieve the above object, the service provider network for providing the image information near the destination searched by the location-based image information request from the mobile terminal to the established communication path; The server system analyzes the GPS location information of the mobile terminal applied from the operator's network to determine the current location of the mobile terminal, and if it is determined to be near the destination, the server system for transmitting the location-based image information of the destination retrieved from the image database to the mobile terminal. The configuration is presented.

In addition, the present invention has been made in order to achieve the above object, the process of receiving and inputting the destination location information and GPS location information of the mobile terminal when there is a request for location-based image information from the mobile terminal by the network of the mobile communication system; ; Determining a current location of the mobile terminal by a server system of the mobile communication system and determining whether the determined current location and the destination are adjacent within a set range; The server system proposes a configuration including a process of retrieving image information of a destination, converting it to be displayed on the portable terminal, and transmitting the portable terminal when the portable terminal is adjacent within a range set in the destination.

In addition, the present invention has been made in order to achieve the above object, the mobile terminal checks the arrival of the location within the destination range when the mobile terminal requests to provide location-based image information; A location measuring unit which tracks a current location of the mobile terminal and approves location-based image information if it is within a set destination range; A positioning unit which analyzes the GPS position information and the base station position information of the portable terminal to determine the position of the portable terminal and provides the position measuring unit; The image server unit for transmitting the image information of the destination retrieved by the request of the location server unit to the portable terminal is proposed.

In addition, the present invention has been made in order to achieve the above object, the step of monitoring the location measurement unit to detect the location information of the mobile terminal when the location-based image information service request of the mobile terminal by the location server; A location measuring unit for tracking the location of the mobile terminal by analyzing the GPS location information of the mobile terminal and the location information of the base station applied from the operator network; Approving the use of the location-based image information service if the mobile terminal is located in the destination range by tracking; The location server unit proposes a configuration including controlling the image server unit to retrieve, prepare, and transmit image information of a destination to a mobile terminal.

Hereinafter, a mobile communication system and a location based system and a method of providing location based image information thereof according to the present invention will be described with reference to the accompanying drawings.

2 is a functional communication diagram of a mobile communication system according to an embodiment of the present invention, and FIG. 3 is a functional configuration diagram of a location-based server system according to an embodiment of the present invention. 4 is a flowchart of a method for providing location-based image information of a mobile communication system of the present invention, and FIG. 5 is a flowchart of a method for providing image information of a location-based server system of the present invention.

Referring to Figure 2, the configuration of the mobile communication system of the present invention, including a base station, a base station controller and a mobile switching center, and is retrieved by a request for providing location-based image information from the mobile terminal (MS) (100) A base station configured to provide image information near a destination through a predetermined communication path, to form a mobile communication service area, to wirelessly connect to a mobile terminal, to transmit and receive a signal of a location-based image information service, and to receive GPS location information; A base station controller for controlling and monitoring a base station to wirelessly connect with a mobile terminal and to transmit and receive signals of a location-based image information service; A provider network 110 connected to the base station controller and including a mobile switching station that controls and monitors a route based on a location-based image information signal generated by a service request of a mobile terminal;

Analyzing the GPS location information of the mobile terminal applied from the operator network 110 to determine the current location of the mobile terminal, and if it is determined that the range near the destination, to transmit the location-based image information of the destination retrieved from the image database to the mobile terminal If the location-based image information service request from the mobile terminal 100 is authorized, the location server unit (LBSP: LOCATION BEYOND SERVICE PLATFORM) (LSPSP) checks whether a destination is located near a destination and controls the provision of location-based image information of the destination. 140); A position measuring unit (MPC) 150 for detecting a current position of the mobile terminal 100 and authenticating the use of the location-based image information; A position determination unit (PDE: POSITION DETERMINE ENTITY) 160 for determining the current position of the mobile terminal 100 by analyzing the GPS location information and the BTS location information of the mobile terminal 100; An image server unit 170 which prepares to transmit the location-based image information of the destination searched by the request of the location server unit 140 and transmits it to the mobile terminal 100; The router unit 180 sets a path between at least one of the location server unit 140, the location measuring unit 150, the positioning unit 160, and the image server unit 170 under the control of the operator network 110. It is composed of a location-based server system 120 is included.

Referring to FIG. 3 and FIG. 2, according to an embodiment of the present invention, the location-based server system 120 will be described. When the mobile terminal 100 requests a location-based image information providing service, it arrives near a destination. Confirming and providing the image information of the destination, the current position of the mobile terminal 100 to the position measuring unit 150 in response to the request for providing the location-based image information of the mobile terminal 100 through the operator network 110 If the mobile terminal 100 is located within the set range of the designated destination, the image information of the vicinity of the destination is requested to the image server unit 170 by approval or authentication of providing the location-based image information of the location measuring unit 150. Location server unit 140 for requesting to transmit to the mobile terminal 100,

It tracks the current location of the mobile terminal 100, and if it is within the set range to approve or authenticate the location-based image information, the positioning unit (GPS) location information of the mobile terminal 100 applied through the operator network 110 160, the location determiner 160 analyzes the location information of the mobile terminal 100 determined and analyzed, and updates and records the location-based image information, if the location information is within a predetermined radius of the designated destination. Or the position measuring unit 150 to authenticate,

GPS location information of the mobile terminal 100 and base station location information are analyzed and the location of the mobile terminal 100 is determined and provided to the location measuring unit 150, which is applied from the location measuring unit 150. Positioning unit 160 for determining the current position of the mobile terminal 100 by analyzing the GPS position information of the base station and the position information of the base station applied from the operator network 110,

The image information of the destination retrieved by the request of the location server unit 140 is transmitted to the mobile terminal 100. The image information of the area designated by the mobile communication service provider is recorded in association with the location information, and the image information database DB If the destination location information is applied from the location server unit 140 and the image information transmission request is sent to the mobile terminal 100, the location-based image information of the destination is retrieved from the image information database, and the mobile terminal 100 An image server unit 170 suitable for being displayed and transmitted to the mobile terminal 100 through the operator network 110;

The operator network 110 and the position server unit 140 are controlled and monitored by the operator network 110, the position server unit 140, the position measuring unit 150, the positioning unit 160, and the image server unit 170. 140 is configured to include a router unit 170 for setting at least one path connecting the position measuring unit 150, the positioning unit 160 and the image server unit 170.

Referring to FIG. 4, according to the present invention, a method for providing location-based image information of a mobile communication system will be described. When it is determined that there is a request for location-based image information from a mobile terminal by the operator's network 110 of the mobile communication system. Receiving and inputting the destination location information and the GPS location information of the mobile terminal 100, by the operator network 110 of the mobile communication system to receive and analyze the control command of the mobile terminal 100 by the image based on the location-based service Determining whether the information is a request (S100); If it is determined that the location-based image information providing request, the step of receiving the movement destination location information received from the mobile terminal 100 (S110); An input process including a process of receiving GPS position information received from the mobile terminal 100 (S120),

By determining the location of the mobile terminal 100 by the operator network 110 of the mobile communication system and determining whether the determined current location and the destination are within the set range, the GPS location information and the base station location information of the mobile terminal 100 Determining the current position of the mobile terminal 100 by analyzing the contrast (S130); A determination process including a step (S140) of determining whether the determined current location of the mobile terminal 100 is adjacent to a destination within a set range,

When the mobile terminal 100 is located within the range set in the destination, the mobile terminal 100 retrieves the image information of the destination, converts it to be displayed on the mobile terminal 100, and transmits the converted image information. The mobile terminal 100 is located by the location server 140 of the server system 120. When it is determined that the 100 is adjacent to the destination, the location-based destination image information is retrieved from the image database (DB) provided in the image server unit 170 of the server system 120, and the mobile terminal 100 is retrieved. Preparing to transmit by converting to display properly (S150); The transmission process comprises the step (S160) of transmitting the location-based image information ready for transmission to the mobile terminal 100 through the operator network (110).

Hereinafter, referring to the attached FIG. 5, the method of providing image information of a location-based server system will be described. If the location server 140 requests a location-based image information of a mobile terminal, the location measurement is performed. Monitoring unit 150 to detect the location information of the mobile terminal 100, the process of receiving the location-based image information request signal of the mobile terminal 100 and the location information of the destination by the location server unit 140 ; The location server unit 140 provides a location measuring unit 150 with the destination location information of the mobile terminal 100 and requests to detect the location of the mobile terminal 100; The location measuring unit receives GPS location information of the mobile terminal from the operator's network and transmits the GPS location information to the positioning unit; The positioning unit includes a monitoring step (ST10, ST20) consisting of a process of determining the current position of the mobile terminal by analyzing the GPS location information of the mobile terminal and the location information of the base station applied from the operator network;

The location measuring unit 150 tracks the location of the mobile terminal 100 by analyzing the GPS location information received from the GPS satellite 130 of the mobile terminal 100 and the location information of the base station applied from the operator network 110. Determining whether the mobile terminal is located within a set range by comparing the current location information and the destination location information of the mobile terminal determined by the location measurement unit 150; Determining the location of the mobile terminal by re-approving and analyzing the GPS location information of the mobile terminal and the location information of the base station applied from the operator's network if it is not within the range set in the confirmation; A tracking step (ST30) consisting of a process of repeatedly checking whether the location information of the determined mobile terminal is a nearby location of a set range in comparison with the destination location information, and

If the mobile terminal is located within the destination range by tracking, the location server 140 approves or authenticates the location-based image information. If the mobile terminal determines the location information and the destination location information within the set range, An approval step (ST40) of applying a location-based image information providing approval signal to a location server unit;

The location server unit 140 controls the image server unit 170 to retrieve and prepare image information of the destination, and transmits the image information to the mobile terminal 100. The location server unit 140 sends the destination to the image server unit. Applying location information, requesting to retrieve image information and transmit the image information to a mobile terminal; Retrieving the location-based image information of the destination from the image database, and converting and preparing the image server to be transmitted to a state suitable for the mobile terminal; And a control step (ST50, ST60, ST70) in which the destination image information converted by the image server unit 170 is transmitted to the mobile terminal 100 through the operator network 110.

In the authorized step ST10 of the monitoring step, the route set by the router unit 180 for the destination location information and the location-based image information service request signal transmitted by the mobile terminal 100 by the operator network 110 ( PATH) is applied to the location server unit 140.

Hereinafter, a mobile communication system, a location-based server system, and a method of providing location-based image information thereof according to an embodiment of the above configuration will be described in detail with reference to FIGS. 2 to 5.

Since the mobile terminal (MS) 100 registers a location by wirelessly connecting to the operator's network 110, it communicates by wirelessly connecting with a desired party while moving anywhere anytime, with a GPS reception function, a camera shooting function, a movie watching function, and multimedia communication. Functions, wireless Internet access, game functions and so on.

The operator network 110 forms a mobile communication service area, performs a wireless connection with a plurality of mobile terminals 100 located in the service area, receives a location registration signal and transmits / receives a communication signal of the mobile terminal 100. Monitors a plurality of base stations (BTS), a base station controller (BSC) that controls and manages a base station, and a base station controller, and a mobile communication system controls and monitors the entire operation, and transmits a communication signal transmission path by switching. Includes a mobile switching center (MSC) that sets (PATH).

The mobile switching center (MSC) records and manages precise location information of each base station (BTS) and receives the unique information of the mobile terminal wirelessly connected to the base station. Therefore, the mobile switching center (MSC) registers and manages the location of the mobile terminal and calls the other party. In this case, since the location information of the mobile terminal to be managed is checked and the corresponding communication path is set to switching, the call signal is transmitted and the mobile communication proceeds.

The mobile terminal 100 receives information such as sea level, longitude, latitude, and current time from the set number of the GPS satellites 130 by the self-equipped GPS reception function. And analyze. Accordingly, the current position is precisely confirmed by the longitude, latitude, and the sea level, and the present position information is transmitted to the operator network 110, thereby precisely providing its own position.

In addition, the mobile switching center configuring the operator network 110 accurately records and manages the location information of each base station using the GPS location information.

The present invention provides a location-based server system 120 in the operator network 110 and provides geographic image information by a location-based service (LBS) using the precise location information of the mobile terminal 100.

In one embodiment, when the mobile terminal 100 requests the operator network 110 to use the location-based geographical image information service together with the destination location information, that is, to provide the location-based image information of the destination, the operator network 110 is In operation S100 and ST10, a request is made to the location server unit 140 to provide image information.

The location server unit 140 receives and inputs destination location information of the mobile terminal 100 through the operator network 110 (S110).

The location server unit 140 requests the location measuring unit 150 to check the current location of the mobile terminal 100 (ST20), and the location measuring unit 150 uses the GPS network location information of the mobile terminal 100 as a provider network. Received and input through (S120), while providing the GPS position information of the mobile terminal 100 to the location determination unit 160, and requests to determine the location of the mobile terminal (100).

The positioning unit 160 receives the location information of the neighboring base station (BTS) where the mobile terminal 100 is located from the operator network 110 and analyzes the GPS location information of the mobile terminal 100 together with the mobile terminal 100. Determine the current position of the) and inform the position measuring unit 150 of the determined position information (S130).

The location measuring unit 150 compares the location information determined by the mobile terminal as a destination and the determined current location information of the mobile terminal.

As a result of the comparison of the location measuring unit 150, it is determined whether the determined current location of the mobile terminal 100 is within a set radius of the destination location (S140), and if it is determined that the mobile terminal is not located near the destination, the set period As a unit, the mobile terminal 100 repeats the positioning and performs a tracking process (TRACKING) which continuously repeats the process of checking again whether the mobile terminal 100 is located within the set destination radius (ST30).

If the mobile terminal 100 is determined to be located within the set radius of the destination through tracking (TRACKING), the location measuring unit 150 locates an authentication signal for approving the use of the location-based geographical image information of the mobile terminal 100. The server unit 140 applies (ST40).

The location server unit 140 requests the image server unit 170 to retrieve the geographical image information of the destination and transmit it to the mobile terminal 100 (ST50).

The image server unit 170 prepares for transmission by searching the geographical image information database, finding the geographical image information of the destination, and converting the retrieved image information to be displayed on the corresponding display unit of the portable terminal (S150) (ST60).

When the transmission preparation is completed, the geographic field image information of the destination by the location-based (LBS) via the operator network 110 is output to the mobile terminal 100 (S160) (ST70).

Therefore, the present invention having the above-described configuration has advantages of providing location-based geographic image information of a destination to a mobile terminal and operating an additional business for a service provider operating a mobile communication system.

According to the present invention having the above configuration, since the service provider provides or provides geographical image information to the mobile terminal using the location-based server system of the service provider, there is an industrial use effect of allowing the user to quickly and accurately confirm the destination.

In addition, a service operator operating a mobile communication system has a convenient effect of operating a geographic image information providing additional service business using a location-based server system.

Claims (19)

A service provider network for providing image information near a destination searched by a location-based image information request from a mobile terminal through a set communication path; The server system analyzes the GPS location information of the mobile terminal applied from the operator's network to determine the current location of the mobile terminal, and if it is determined that the range is near the destination, transmits the location-based image information of the destination retrieved from the image database to the mobile terminal. Mobile communication system configured to include. The method of claim 1, wherein the operator network, A base station which forms a mobile communication service area, wirelessly connects to a mobile terminal, transmits and receives location-based image information signals, and receives GPS location information; A base station controller for controlling and monitoring the base station to wirelessly connect with the mobile terminal and to transmit and receive a location-based image information signal; And a mobile switching station connected to the base station controller and controlling and monitoring a route for setting a location-based image information signal at the request of the mobile terminal. Receiving and inputting destination location information and GPS location information of the mobile terminal when the location-based image information request is received from the mobile terminal by a network of a mobile communication system; Determining a current location of the mobile terminal by the server system of the mobile communication system and determining whether the determined current location and the destination are within a set range; And retrieving image information of a destination, converting the image information of a destination to be displayed on the mobile terminal, and transmitting the image information when the mobile terminal is adjacent within a range set in the destination. The method of claim 3, wherein the input step, Receiving and analyzing a control command of a mobile terminal by the operator network to determine whether a request for providing image information by a location-based service is performed; If it is determined that the request for providing location-based image information is received, receiving movement destination location information received from the mobile terminal; And receiving GPS location information received from the mobile terminal. The method of claim 3, wherein the determining step, Determining, by the server system, a current position by comparing the GPS position information of the mobile terminal with the base station position information; And determining whether the determined current location of the portable terminal is adjacent to a destination within a set range. The method of claim 3, wherein the transmitting step, Retrieving, by the server system, location-based destination image information from an image database when the mobile terminal is adjacent to a destination, and converting the retrieved location-based destination image information to be displayed on the mobile terminal; And transmitting the converted location-based destination image information to the mobile terminal. A location server unit which checks whether the mobile terminal requests the location-based image information and arrives within the destination range and provides the image information of the destination; A location measuring unit which tracks the current location of the portable terminal and approves location based image information if it is within a set destination range; A positioning unit for analyzing the GPS position information and the base station position information of the portable terminal to determine the position of the portable terminal and to provide the position measuring unit; And an image server unit which transmits the image information of the destination retrieved by the request of the location server unit to the portable terminal. The method of claim 7, wherein The path connecting the location server unit, the position measuring unit, the positioning unit, the image server unit, and the mobile communication network under the control of the location server unit, the position measuring unit, the positioning unit, and the image server unit is one. The router unit for setting more; location-based server system further comprises. The method of claim 7, wherein the location server unit, When the location-based image information request signal of the portable terminal is applied, requesting the position measuring unit to check the current position of the portable terminal, and when the portable terminal is located in a designated destination range, providing the position-based image information of the position measuring unit And requesting the image server to transmit the image information near the destination to the mobile terminal upon approval. The method of claim 7, wherein the position measuring unit, The GPS location information of the mobile terminal is applied to the positioning unit, and the location information of the mobile terminal determined by analyzing the location determination unit is updated and recorded. If the location information is within a predetermined radius of the designated destination, the location-based image Location-based server system, characterized in that consisting of a configuration for approving the provision of information. The method of claim 7, wherein the positioning unit, Location-based server system, characterized in that configured to determine the current position of the mobile terminal by receiving and analyzing the GPS location information of the mobile terminal and the location information of the base station. The method of claim 7, wherein the image server unit, The image information of the designated geographical area is recorded in association with the location information, managed by the image information database, and if the destination position information is applied from the location server unit and the image information transmission request to the portable terminal is received, Location-based server system, characterized in that for retrieving the image information of the destination, converting the transmission ready to transmit to the portable terminal. The method of claim 8, wherein the router unit, One or more paths connecting the operator network, the location server unit, the position measuring unit, the positioning unit and the image server unit by monitoring the operator network and controlling the location server unit, the position measuring unit, the positioning unit and the image server unit. Location-based server system, characterized in that consisting of the configuration. Monitoring the location measuring unit to detect the location information of the mobile terminal when the location server requests a location-based image information service of the mobile terminal; Tracking the location of the mobile terminal by analyzing the GPS location information of the mobile terminal and the location information of the base station applied from the operator network; Approving the use of a location-based image information service when the mobile terminal is located in a destination range by the tracking; And controlling the image server unit to retrieve, prepare, and transmit image information of a destination to the mobile terminal. The method of claim 14, wherein the monitoring step, Receiving a request for providing location-based image information of the mobile terminal and destination location information by the location server unit; Requesting, by the location server unit, to provide a location measuring unit with destination location information of the mobile terminal and to detect the location of the mobile terminal; Receiving, by the position measuring unit, GPS position information of the portable terminal and transferring the position information to a positioning unit; And determining the current position of the portable terminal by analyzing the GPS position information of the portable terminal and the position information of the base station by the positioning unit. The method of claim 15, wherein the applying step, And applying the destination location information and the location-based image information request signal transmitted by the portable terminal to the location server through a path set by the router. The method of claim 14, wherein the tracking step, Confirming, by the location measuring unit, whether the mobile terminal is located within a predetermined range compared to the current location information of the mobile terminal and the destination location information; Determining the location of the mobile terminal by re-approving and analyzing the GPS location information of the mobile terminal and the location information of the base station applied from the operator's network if the range is not within the range set in the confirmation; And repeatedly checking whether the determined location information of the mobile terminal is a neighboring location of a set range in comparison with the destination location information. The method of claim 14, wherein the approval step, And applying a location-based image information use approval signal to the location server unit when the location information and the destination location information of the mobile terminal are determined within the set range by the location measurement unit. . The method of claim 14, wherein the controlling step, Applying destination location information to an image server unit by the location server unit, and requesting to retrieve image information of the destination and transmit the image information of the destination to the mobile terminal; Converting the image server unit to retrieve image information of the destination from an image database and transmit the image information to the portable terminal; And transmitting the converted destination image information by the image server unit to the portable terminal through a provider network.

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