KR100802178B1 - Intelligent phone-call service method in home network - Google Patents

Abstract

The present invention relates to a method for providing an intelligent video call service using a sensor in a home network which detects a movement of a user's area by using a sensor installed in each area of a home and moves a session of a call terminal according to the movement of the user.

In a method of providing an intelligent video call service using a sensor in a home network, a location of a user is determined by using a sensor installed in each area of a home, and an IP address of an available video call terminal installed in each area according to the current location of the user is provided. Registering with the service contact address; A second step of storing the service session establishment information when the first video call terminal installed in the first area where the user is located in response to the video call service request transmits a message indicating that the service session is established with the other video call terminal; A third step of confirming whether the user is using a video call service when it is detected that the user has moved to the second area by a sensor; If the service is not used in the third step, changing and registering the IP address of the second video call terminal installed in the second area into a new service contact address; A fifth step of transmitting a service session movement notification message including an IP address of the second video call terminal installed in the second area to the first video call terminal when the service is in use in the third step; And when the session is reestablished between the counterpart video call terminal and the second video call terminal by the first video call terminal and receives a service session end notification message at the end of the call, the current video call terminal according to the service session end notification message. The sixth step of deleting information about the service session of the.

Home network, video call service, session movement processing, SIP, sensor, entry detection

Description

Intelligent video call service providing method using sensor in home network {Intelligent phone-call service method in home network}

1 is a diagram illustrating an embodiment of a home network for providing an intelligent video call service using a sensor according to the present invention;

2 is a diagram illustrating an embodiment of internal components of respective devices in a home server-based home network according to the present invention;

3 is a flowchart illustrating a process of registering and deleting service information in a home server according to service on / off in each indoor video call terminal;

4 is a flowchart illustrating a process of establishing and releasing a service session for a video call in an indoor video call terminal;

FIG. 5 is a flowchart illustrating an event generation and service session movement process according to movement of a resident's area during a video call;

6 is a flowchart illustrating a service session termination process according to occurrence of an end event of a video call by a resident after moving a service session;

7 is a flowchart illustrating a service session termination process according to occurrence of an end event of a video call by a counterpart after moving a service session.

Explanation of symbols on the main parts of the drawings

100: home server 110: sensor control unit

120: user location processing unit 130: service mobility management unit

140: SIP proxy 150: SIP registrar

160: SIP LS 200, 210, 220: sensor

300, 400: external video call terminal

310: video call terminal application processing unit 320: session reset processing unit

330: SIP UA 340: RTP communication processing unit

350: AV input and output control unit

500, 600, 700: Internal video call terminal

510: video call terminal application processing unit 520: service mobility processing unit

530: session reset processing unit 540: SIP UA

550: RTP communication processing unit 560: AV input and output control unit

The present invention relates to a method of providing an intelligent video call service using a sensor in a home network, and more particularly, to detect a movement of an occupant's area by using each sensor located in various places (eg, kitchen, study, living room, etc.) in the home. And establishes a session for an external call service request to a call terminal (video call terminal) in the corresponding area where the current resident is located, and if a move of the resident occurs during a call, performs a session move process to a call terminal within a new area. The present invention relates to a method of providing an intelligent video call service using a sensor in a home network so as to be able to move freely in a home and receive a call service by allowing a continuous call.

In the present invention, a wireless communication terminal is a mobile communication terminal, a personal mobile communication terminal (PCS), a personal digital terminal (PDA), a smart phone, a next generation mobile communication terminal (IMT-2000), a wireless LAN terminal and the like while being carried by an individual A terminal that can communicate.

Home network technology provides a future-oriented home environment by enabling all information appliances in the home to be connected to a wired / wireless network so that various high quality home services can be provided without restriction of device, time and place. In order to provide home services using various types of devices in the home network environment, a service platform that can be used in common is needed, and the residents of the home must use various devices and services easily and conveniently using the service platform. .

The types of digital home services include home entertainment services such as Internet Protocol Television (IPTV) and Video on Demand (VOD), and home data communication services such as content, data sharing, Internet telephony (VoIP), and video telephony. Home automation services such as remote control, remote meter reading, crime prevention, and disaster prevention. Among the most notable services are video and internet telephony services that offer significant benefits to consumers in terms of reduced phone costs.

However, in order to use such a video over the telephone (MoIP: Multimedia over IP) service in the home, there has been inconvenience in the past that a resident should go to a terminal fixed at a specific location and execute and operate it directly. In addition, after the service is executed, there was a limit that the residents cannot move freely and must remain in the place where the terminal is located.

Although researches have been conducted to solve these problems, the technology developed so far focuses on the terminal itself moving between subnets instead of the resident, or the user wants to give the resident a unique identifier and use the terminal. Technology remains at the level of mobility of the individual, which allows the user to select and use a certain terminal before simply connecting the service, such as the need to register, change, or cancel the service. However, the above technologies are limited to mobile networks, cellular networks, and the like.

Accordingly, in consideration of the physical space size of the home and the construction of the home network, there is a disadvantage in that efficiency and convenience are greatly reduced to apply the above technologies to the home. In other words, rather than a resident moving between rooms with a portable terminal in the house, the resident is free to move around the room, while each terminal is generally fixed in a certain position.

In this situation, resident or service mobility may be more necessary than the mobility of the terminal. In addition, it is important to provide services by minimizing the inhabitants 'involvement, such as recognizing the occupants' location and intelligently performing service connection and session change processing.

Here, looking at the prior art one by one with respect to the video Internet phone service in more detail as follows.

Looking at the Republic of Korea patent "SIP user agent device and a method for providing session mobility using the same (Application No. 10-2003-0086690, 2003.12.02)) as the first prior art, the SIP (Session Initiation Protocol) as the user moves in a ubiquitous environment In order to support session mobility to provide a mobile multimedia service, a SIP user agent device performs SIP location registration for a SIP terminal with a user's SIP identifier when the user moves to a SIP terminal equipped with the SIP user agent device, Request session information of user to SIP server and receive session information accordingly. When the user moves to the SIP terminal in the state of receiving the SIP-based mobile multimedia session according to the received session information, when the user completes the session renegotiation, the user can maintain the SIP-based mobile multimedia session with the counterpart. Accordingly, when the user moves to any other SIP terminal, there is an effect of continuously providing a SIP-based mobile multimedia service by providing session mobility to the user.

However, in the case of the first prior art, there is a problem of providing only session mobility based on SIP protocol in a SIP terminal. Specifically, there is a problem in that the service mobility location limitation of the user can be solved only by the session mobility scheme defined by the UA (User Agent) function of the RFC SIP protocol.

In addition, referring to the Republic of Korea patent "Sensor network and SIP-based service mobility providing system and method (Application No. 10-2003-0086688, 2003.12.02)) as the second prior art, the user entry and exit event to a specific area When the user agent inputs the event information of a specific area from the sensing device in conjunction with the sensing network, the user agent receives the XML-based user service profile information from the proxy server and provides information related to the mobility of the user. After checking, access to the SLP server to obtain available terminal / device resource information in a specific area. Then, the user accesses the SIP-based mobile multimedia service network and registers the user, initializes the corresponding terminal / device resource based on the available terminal / device resource information, and provides the service to the user using the same. Thus, in an environment where various types of communication service resources and communication infrastructures serving them coexist, the user may move without intentional intervention when the user moves to another area without having a terminal / device resource for receiving his service. There is an effect that the user can be provided with the service using the terminal / device resources of the actual place, the mobility support for the service he subscribed to.

However, the second conventional technology only describes a user service profile configuration and management method for service mobility maintenance according to a user's movement, and does not specifically specify a session connection / move / release procedure between actual terminals. There was a problem.

The present invention has been proposed to solve the above problems, by using each sensor located in various places of the house (for example, kitchen, study, living room, etc.) to detect the movement of the occupant's area, the area where the current occupant is located By establishing a session for an external call service request to a call terminal (video call terminal) in the inside, and if a resident movement of the area occurs during a call, the session movement process to the call terminal in the new area to continue the call, An object of the present invention is to provide a method of providing an intelligent video call service using a sensor in a home network so as to move freely in a home and receive a call service.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

In accordance with another aspect of the present invention, there is provided a method for providing an intelligent video call service using a sensor in a home network, the method comprising: determining a location of a user by using a sensor installed in each area of a home and according to the current location of the user. A first step of registering an IP address of an available video call terminal installed in each area as a service contact address; A second step of storing the service session establishment information when the first video call terminal installed in the first area where the user is located in response to the video call service request transmits a message indicating that the service session is established with the other video call terminal; A third step of confirming whether the user is using a video call service when it is detected that the user has moved to the second area by a sensor; If the service is not used in the third step, changing and registering the IP address of the second video call terminal installed in the second area into a new service contact address; A fifth step of transmitting a service session movement notification message including an IP address of the second video call terminal installed in the second area to the first video call terminal when the service is in use in the third step; And when the session is reestablished between the counterpart video call terminal and the second video call terminal by the first video call terminal and receives a service session end notification message at the end of the call, the current video call terminal according to the service session end notification message. The sixth step of deleting information about the service session of the.

In addition, another method of the present invention for achieving the above object, in the intelligent video call service providing method using a sensor in the home network, the video call terminal installed in each area transmits its IP address to the home server to contact the service A first step of registering with an address; A second step of transmitting, by the first video call terminal installed in the first area, a service session establishment notification message to the home server when a service session is established with the other video call terminal; When the first video call terminal receives a service session movement notification message including the IP address of the second video call terminal installed in the second area moved by the user, from the home server, session capability information of the video call terminal of the other party; Transmitting a session reset request message including a message to the second video call terminal; When the first video call terminal receives a message including the session capability information of the second video call terminal as a result of the third step, the counterpart video call terminal is used by using the session capability information of the second video call terminal. Performing a session reset procedure with the fourth step; When the first video call terminal completes the session resetting procedure with the other video call terminal, a response message is transmitted to the second video call terminal to connect a media channel between the second video call terminal and the other video call terminal. A fifth step; And when the first video call terminal receives a termination event from the counterpart video call terminal or the second video call terminal, performs a session termination procedure and transmits a service session termination notification message to the home server. Include.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following detailed description, a Session Initiation Protocol (SIP) is used for establishing and releasing a video call service session and resetting a session (resetting according to a session movement) between an external party and a resident. For example, RFC 3550 Real-time Transfer Protocol (RTP) or RTCP (RTP Control Protocol) is used to transmit and receive multimedia data (voice, video, etc.). Let's explain.

In addition, the home network according to the present invention includes a plurality of sensors and various digital devices (personal computers, laptops, Internet protocol set-top boxes, etc.) that can communicate with each other, and have a home server for managing them. .

The home server receives resident entry and exit event information in a certain area through various sensors attached to various places in the home (each room, living room, kitchen, etc.), and uses an identifier (ID) of the corresponding sensor. Find out the location (area) of the occupants and request the video call service from the outside party, and connect the session to the video call terminal in the relevant area so that the residents can freely move the house and receive the video call service. Manage it.

In this case, when a resident moves a region during a call, a service session that is already connected using a plurality of sensors and SIPs can be dynamically maintained so that a new video call terminal (video call terminal in the corresponding region after moving the region) can be maintained. Connect a service session.

1 is a diagram illustrating an embodiment of a home network for providing an intelligent video call service using a sensor according to the present invention.

As illustrated in FIG. 1, a home network for providing an intelligent video call service using a sensor according to the present invention includes a plurality of sensors 200, 210, and 220 located in various places (kitchen, study room, living room, etc.) and SIP. By using the home server based intelligent video call service can be provided.

In other words, the location of the resident in real time (real-time updating of location information), and when receiving a video call service from the outside, the video call service is conveniently connected by connecting a session to the video call terminal in the area where the current resident is located. To be provided. In addition, when a resident moves during a call, a session transfer process is performed to a new video call terminal so that the video call service can be continuously provided through an existing session.

At this time, the home network and the external network (eg, the Internet) are connected based on data packet communication (IP network) using the Internet Protocol (IP). In addition, there is a home server 100 as an arbitration device connecting a home network and an external network, and sensors 200, 210, and 220 are provided for each area of the home, and an internal video for making a video call in each area. One or more call terminals 500, 600, and 700 exist.

Here, the home server 100 of the home network according to the present invention is to update and manage the current location information of the occupants using a plurality of sensors attached to various places (each room, living room, kitchen, study, etc.) in the home Looking at it as follows.

The home server 100 receives an entry acknowledgment event information from a sensor that detects an entry each time a resident moves in the house from each sensor attached to various places in the house, and identifies the identifier (s) of the sensor that transmits the entry acknowledgment event information. After determining the current location of the occupant based on the ID) and the installation location information, the IP address (IP address) of the terminal capable of the video call service within the corresponding area among the internal video call terminals 500, 600, and 700 is accessed. Register with the terminal.

In addition, the home server 100 looks at the method of managing the service list and service state information currently used by the home residents in detail as follows.

The home server 100 receives the session information (session establishment information) from the internal video call terminal 500, 600, 700 that has completed the video call session establishment (setting), and thus the service session in the received session information. The identifier (ID) and the resident's SIP Uniform Resource Identifier (URI) information are mapped to each other, stored in the session management table, and a response message for the request message of the internal video call terminal 500, 600, 700 is transmitted. Subsequently, as the video call session is terminated and the session termination message is received from the corresponding internal video call terminals 500, 600, and 700, the identifier (ID) of the currently terminated service session is mapped to the SIP URI information of the resident. Store in session management table and send reply message to request message.

When the tenant moves to another area during the video call, the home server 100 moves the service session from the existing area (eg, the kitchen) to the internal video call terminal 600 in the new area (eg, the study). Looking at the way to control is as follows.

The home server 100 detects the resident's entry using the sensor 210 located in the new area when the resident's area moves, checks whether the resident is currently using the video call service, and then has a connected session. In this case, a service activation request message including corresponding session information and device information of a terminal of a new area is generated and transmitted to the internal video call terminal 500 of the existing area where a session is first created, and the location information of the resident is updated. . And the external video call of the other party using the device information of the service media channel connection terminal in the new mobile area included in the service activation request message transmitted from the internal video call terminal 500 of the existing area that created the first session. The session is reset with the terminals 300 and 400.

In this case, the internal video call terminal 600 in the new area reconnects the media channels with the external video call terminals 300 and 400 of the other party so that the residents can maintain the video call continuously. Thereafter, at the end of the service session, the session is terminated by the internal video call terminal 500 of the existing area in which the session was first created.

2 is a diagram illustrating an embodiment of internal components of respective devices in a home server-based home network according to the present invention.

As shown in FIG. 2, the home server 100 receives a location information of a resident from the sensor control unit 110 and the sensor control unit 110 to detect a movement of an area of a resident and perform a process accordingly. After checking the device information of the serviceable video call terminal in the area where the current resident is located, the user location processing unit for registering the IP address (IP address) of the video call terminal in the SIP registrar 150 as the video call service contact address ( 120, a service mobility management unit 130 for performing session mobility processing when a resident has a session currently in use.

And as the internal video call terminal (500, 600, 700) receives the session movement notification event information from the home server 100, the new internal to deliver the current session information to the home server 100 and forward the session The service mobility processor 520 for processing session reconnection by obtaining media characteristic information (ie, device information for service media channel connection) from the video call terminals 500, 600, and 700, and performing session reset, when the session is moved. Session reset processing unit 530 for performing the session reset processing, SIP registrar 150 of the home server 100 performs the service, location information registration and update of the internal video call terminal (500, 600, 700) and session connection RFC 3261 SIP message for transmitting / receiving SIP UA 540 for transmitting and receiving, RTP communication processing unit 550 for performing RTP / RTCP packet processing, received through a microphone (not shown) AV input / output control unit 560 for encoding sex data and video data input through a camera (not shown), decoding / reproducing video / audio data of the other party, interface processing with residents, and SIP UA ( 540, a video call terminal application processor 510 for performing a video call terminal function of mobility support through interaction with the RTP communication processor 550 and the AV input / output controller 560.

In addition, the external video call terminals 300 and 400 service the external video call terminals 300 and 400 to the SIP registrar 150 of the session reset processor 320 and the home server 100 to perform the session reset process when the session moves. , SIP UA 330 for performing location information registration and update, and performing RFC 3261 SIP message transmission / reception processing at session connection / disconnection, RTP communication processing unit 340 for performing RTP / RTCP packet processing, microphone (not shown) AV input / output processing unit 350 for encoding the audio data input through the camera (not shown) and the video / audio data of the other party and decoding the audio data received through the camera (not shown), and the user (the other party). A video call terminal application for performing a video call terminal function of mobility support through interaction with an interface process and the SIP UA 330, the RTP communication processor 340, and the AV input / output controller 350. And a unit (310).

3 is a flowchart illustrating a process of registering and deleting service information in a home server according to service on / off in each indoor video call terminal.

Here, when the internal video call terminal 500, 600, 700 turns on / off the video call service, the service contact address of the internal video call terminal 500, 600, 700 is set to the home server ( 100 shows an example of dynamically registering and changing.

First, internal video call terminals 500, 600, and 700 transmit service information registration request messages to the home server 100 to register their IP addresses as service contact addresses, respectively (301 and 303). . That is, as the video call service is turned on, a service contact address registration is requested.

Accordingly, the home server 100 transmits a response message (service information registration response message) to the corresponding internal video call terminals 500, 600, and 700 (302, 304), and each internal video call terminal 500, 600. Register the service contact addresses received from the server 700 (307 and 308). That is, the service terminal information of the access terminal is stored.

Thereafter, each internal video call terminal 500, 600, 700 transmits a service information deletion request message corresponding to the OFF of the video call service to the home server 100 (305).

Accordingly, the home server 100 transmits the service information deletion response message to the internal video call terminal 500, 600, 700 (306), and deletes the corresponding service contact address (changes the service terminal information) ( 309).

4 is a flowchart illustrating a process of establishing and releasing a service session for a video call in an indoor video call terminal.

First, the internal video call terminals 500, 600, and 700 execute a video call application program at the request of a resident, start a video call service, and transmit a service session establishment notification message to the home server 100 (401). . At this time, the service session establishment notification message includes session information (session establishment information).

Accordingly, the home server 100 transmits a response message to the service session establishment notification message (402), and stores the session establishment information (403).

Thereafter, the internal video call terminals 500, 600, and 700 transmit a service session end notification message to the home server 100 according to the end of the video call of the resident (404). At this time, the service session termination notification message includes information on the service session.

Accordingly, the home server 100 transmits a response message to the service session termination notification message (405), and deletes information on the corresponding service session (changes service terminal information) (406).

FIG. 5 is a flowchart illustrating an event generation and a service session movement process according to movement of a resident's area during a video call.

Here, when the occupant moves to a new location in the home during a video call, the session moving process will be described.

First, an internal video call terminal 600 located in a predetermined area (study) is in a state of providing a video call service to a resident (501). That is, the session for the video call with the external video call terminal (300, 400) is established.

Subsequently, the sensor 220 attached to another area (living room) detects that a resident enters the corresponding area (moves from the study to the living room), and receives the entry recognition event information (sensor detection message) accordingly. (502).

Then, the sensor controller 110 of the home server 100 determines the location of the current resident using the identifier (ID) of the corresponding sensor 220 that has transmitted the entry recognition event information, and includes the location information of the resident. A user entry location notification message is generated and transmitted to the user location processing unit 120 (503).

Thereafter, the user location processing unit 120 of the home server 100 checks whether there is a user authentication and a service currently being used by the user (resident) (504).

If there is no service session currently connected, the user location processing unit 120 of the home server 100 searches for device information of the available video call terminal 700 in the corresponding area (living room). Then, the video call service contact address change request message including the IP address (IP address) of the obtained video call terminal 700 is transmitted to the SIP registrar 150 to be registered as a new service contact address (505). ).

Subsequently, when the SIP registrar 150 receives the video call service contact address change request message, the SIP registrar 150 changes the corresponding service contact address in an internal database and sends a response message (SIP 200 OK message) to the user location processor 120. Reply (506).

On the other hand, if there is a service session check result (504), if there is a currently connected service session, the service contact address information of the corresponding session is found and the video call terminal 600 having the corresponding contact address is available in the new video terminal. A service session movement notification message including an IP address (IP address) of 700 is transmitted (508). Here, the user location processor 120 may generate and transmit a user / service movement notification message to the service mobility management unit 130 to transmit the service session movement notification message (507).

Thereafter, the video call terminal 600 in which the existing session is connected returns a response message to the service session movement notification message (509), and the external video call terminal 300 of the other party to the video call terminal 700 in the new area. In step 510, the SIP session re-invite request message including the session capability information of FIG.

Thereafter, the video call terminal 700 receiving the SIP session reset request message includes its session capability information in a response message (SIP 200 OK message) and responds (511).

Thereafter, the video call terminal 600 receiving the response message performs a session resetting procedure with the external video call terminals 300 and 400 of the existing counterpart using the session capability information of the new video call terminal 700 (512). ).

Subsequently, as the session re-establishment with the external video call terminals 300 and 400 is completed, the video call terminal 600 maintaining the existing session connection moves the SIP response (ACK) message to the video call terminal in the new area where the occupant moved ( 700) (513).

As a result, a new RTP media channel connection is made between the video call terminal 700 in the new area (living room) and the external video call terminals 300 and 400 of the other party. Through 700, it is possible to continuously talk to the other party (514).

6 is a flowchart illustrating a service session termination process according to occurrence of an end event of a video call by a resident after moving a service session.

Here, the process of ending the session when the video call service is terminated through the internal video call terminal 700 in the newly moved area (living room) following the detailed description of FIG. 5 will be described.

First, the internal video call terminal 700 in the new area (living room) releases the RTP transmission / reception channel (service media channel) in response to requesting the end of the video call service from the resident (601). In addition, the session termination event is generated to notify the internal video call terminal 600 of the existing area (study) (602).

Thereafter, the internal video call terminal 600 of the existing area transmits a SIP end (BYE) message to the external video call terminals 300 and 400 of the other party to perform the end procedure of the corresponding session, and as a result, a response message (SIP). 200 OK message) (603) informs the internal video call terminal 700 in the new area (living room) that the end of the session is completed (604).

7 is a flowchart illustrating a service session termination process according to occurrence of an end event of a video call by a counterpart after moving a service session.

In this case, following the detailed description of FIG. 5, when the counterpart terminates the video call service, the session termination process will be described.

Currently, the occupant is in a state of talking with the other party using the internal video call terminal 700 in the new area (living room).

First, the internal video call terminal 600 in the existing area (residence) receives a termination event (SIP BYE) message from the external video call terminals 300 and 400 of the other party (701).

Accordingly, the session termination notification message is transmitted to the internal video call terminal 700 in the new area (living room) to terminate the service media channel (702). In this case, the internal video call terminal 700 is connected to a service media channel.

Thereafter, the internal video call terminal 700 in the new area returns a session end response message to the internal video call terminal 600 in the existing area (703), and releases its RTP transmission / reception channel (704).

Thereafter, the internal video call terminal 600 in the existing area transmits a response message (SIP 200 OK message) to the external video call terminals 300 and 400 of the other party (705). This completes the session termination.

As described above with reference to FIGS. 6 and 7, when the service session is terminated, the resident ends through the internal video call terminal that was in the final call, and the session termination procedure with the external video call terminal of the actual counterpart established the first session. By performing the internal video call terminal in the existing area, the session connection / disconnection is processed collectively through one terminal.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

The present invention as described above, by attaching a plurality of sensors throughout the home to detect the movement of the resident and accordingly to check the location information of the resident in real time to be provided with a video call service through a close video call terminal, There is an effect that allows you to use the video call service freely while moving freely.

In addition, the present invention has the effect of providing a convenience to continuously talk to the other party by moving the current session to the available terminal in the area when the area movement of the occupant occurs during the call.

Claims (8)

delete An intelligent video call service providing method using a sensor in a home network, A first step of identifying a location of a user using a sensor installed in each area of a home and registering an IP address of an available video call terminal installed in each area according to a current location of the user as a service contact address; A second step of storing the service session establishment information when the first video call terminal installed in the first area where the user is located in response to the video call service request transmits a message indicating that the service session is established with the other video call terminal; A third step of confirming whether the user is using a video call service when it is detected that the user has moved to the second area by a sensor; If the service is not used in the third step, changing and registering the IP address of the second video call terminal installed in the second area into a new service contact address; A fifth step of transmitting a service session movement notification message including an IP address of the second video call terminal installed in the second area to the first video call terminal when the service is in use in the third step; And If the session is reestablished between the counterpart video call terminal and the second video call terminal by the first video call terminal and a service session end notification message is received at the end of the call, the current video call terminal according to the service session end notification message Step 6 of deleting information about the service session Intelligent video call service providing method using a sensor in a home network comprising a. The method of claim 2, In step 6, when the first video call terminal receives a service session movement notification message including an IP address of the second video call terminal, a session reset request message including session capability information of the other video call terminal is received. Transmitting to the second video call terminal; Receiving, by the first video call terminal, session capability information of the second video call terminal and performing a session resetting process with the counterpart video call terminal; And When the session resetting process is completed, the first video call terminal transmits a response message to the second video call terminal, so that the second video call terminal connects a media channel with the counterpart video call terminal. Intelligent video call service providing method using a sensor in a home network, characterized in that. delete An intelligent video call service providing method using a sensor in a home network, A first step of allowing video call terminals installed in each area to transmit their IP address to a home server to be registered as a service contact address; A second step of transmitting, by the first video call terminal installed in the first area, a service session establishment notification message to the home server when a service session is established with the other video call terminal; When the first video call terminal receives a service session movement notification message including the IP address of the second video call terminal installed in the second area moved by the user, from the home server, session capability information of the video call terminal of the other party; Transmitting a session reset request message including a message to the second video call terminal; When the first video call terminal receives a message including the session capability information of the second video call terminal as a result of the third step, the counterpart video call terminal is used by using the session capability information of the second video call terminal. Performing a session reset procedure with the fourth step; When the first video call terminal completes the session resetting procedure with the other video call terminal, a response message is transmitted to the second video call terminal to connect a media channel between the second video call terminal and the other video call terminal. A fifth step; And When the first video call terminal receives a termination event from the counterpart video call terminal or the second video call terminal, performing a session termination procedure and transmitting a service session termination notification message to the home server. Intelligent video call service providing method using a sensor in a home network comprising a. The method of claim 5, wherein In the sixth step, when the first video call terminal receives a termination event message from the second video call terminal, the sensor terminates the session with the video call terminal of the other party. Intelligent video call service providing method using. The method of claim 5, wherein In the sixth step, when the first video call terminal receives the end event message from the video call terminal of the other party, by sending a session end notification message to the second video call terminal to disconnect the service media channel; Intelligent video call service providing method using a sensor in a home network. delete

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