KR100952717B1 - System and method for controlling a controlled client based on ip multimedia subsystem - Google Patents

Abstract

The present invention discloses an IMS-based controlled client control system and method thereof. An IMS-based controlled client control system according to an embodiment of the present invention includes a management server, and the management server includes an IMS-based controlled client list corresponding to the control client requested from the connected IMS-based control client. Is provided to the control client, and if the authentication is performed by authenticating the selected controlled client from the controlled client list, the control client and the controlled client are connected based on the IMS, and based on the control signal of the control client. And controlling the controlled client.

IP Multimedia Subsystem (IMS), Session Initiation Protocol (SIP), Extensible Markup Language (XML), Control Client, Controlled Client

Description

IMS-based controlled client control system and method thereof {SYSTEM AND METHOD FOR CONTROLLING A CONTROLLED CLIENT BASED ON IP MULTIMEDIA SUBSYSTEM}

The present invention relates to controlled client control, and more specifically, to a controlled client such as a mobile camera and a dog feeding device through a management server to which an IMS (IP Multimedia Subsystem) based control client and a controlled client are registered. The present invention relates to an IMS-based controlled client control system and method for controlling based on the IMS and transmitting the event information generated from the controlled client to the controlling client so as to control the controlled client based on the IMS.

Recently, due to the wide spread of the Internet and the development of communication technologies, technologies for connecting and utilizing various electric / electronic devices and communication devices in homes and offices have been developed.

As an example of the technology using the Internet network, a controlled client such as a mobile camera connected to the Internet network is remotely controlled from the control client through the Internet network. That is, in the related art, a mobile camera connected to the Internet network and a control terminal connected to the Internet network communicate with the wired LAN to control the mobile camera.

However, the controlled client control technology using the Internet network according to the prior art has a disadvantage in that the controlled client cannot be controlled in an area where the Internet network is not installed, and the control client connected to the wired LAN must be controlled. There is a disadvantage in that mobility is limited.

Therefore, there is a need for a system capable of providing mobility as well as controlling a controlled client in an area where an internet network is not installed.

An object of the present invention is to solve the above problems, the control client to control the controlled client on the basis of the IMS through the management server registered the IMS-based control client and the controlled client corresponding to the control client The present invention provides an IMS-based controlled client control system and a method thereof.

Another object of the present invention is to provide a signal that is transmitted and received between the control client and the management server, the management server and the controlled client in the form of XML (eXtensible Markup Language) to provide scalability by linking with other services. The present invention provides a controlled client control system and a method thereof.

Still another object of the present invention is to control a controlled client through an IMS based mobile communication network, so that the controlled client can be controlled even in an area where the Internet is not available, and control after storing the data obtained by the controlled client. The present invention provides an IMS-based controlled client control system and method which can provide data obtained by a controlled client to the controlled client by reproducing at the request of the client.

In order to achieve the above object, an IMS-based controlled client control system according to an aspect of the present invention includes a management server, the management server corresponding to the control client requested from the connected IMS-based control client. Providing a list of controlled clients based on the controlled client, and authenticating the selected controlled client among the controlled clients list by connecting the controlled client and the controlled client based on the IMS, And controlling the controlled client based on a control signal of the client.

In this case, the format for requesting the controlled client list and the format for providing the controlled client list may be in XML (eXtensible Markup Language) format.

In this case, the IMS-based controlled client control system further includes a database storing information on at least one registered control client and at least one registered controlled client, and the management server stores the information stored in the database. An authentication process of the connected control client and the selected controlled client may be performed.

In this case, when the management server receives information on an event occurrence from at least one of the controlled clients in the list of controlled clients, the management server may provide information about the event occurrence to the controlling client and the event received by the management server. The format of the information about the occurrence may be in XML format.

In this case, the management server may perform authentication based on a password set when the selected controlled client is registered.

In this case, the management server may receive the data obtained by the control client and transmit the received data to the selected controlled client so that it can be output from the selected controlled client.

At this time, the management server may store the data obtained by the controlled client corresponding to the control client, and reproduce the data selected by the control client among the stored data and provide the data to the control client.

According to an aspect of the present invention, there is provided a method for controlling a controlled client based on an IMS, comprising: performing authentication for a connected IMS-based controlled client; if the authentication of the controlled client is successful, the controlled client requested by the controlled client Providing an IMS-based controlled client list corresponding to the controlled client, performing authentication for the controlled client selected by the controlled client from the controlled client list, and authenticating the selected controlled client. And if the control client succeeds, connecting the selected control client to the selected controlled client on an IMS basis and controlling the controlled client based on the received control signal of the controlling client.

The present invention has the effect of allowing the control client to control the controlled client based on the IMS through the management server registered with the IMS based control client and the controlled client corresponding to the control client.

In addition, the present invention provides an extensibility by linking with other services by providing signals transmitted and received between the control client and the management server, the management server, and the controlled client in an XML (eXtensible Markup Language) format.

In addition, the present invention is to control the controlled client through the IMS base using a mobile communication network, it is possible to control the controlled client even in an area where the Internet is impossible, and after storing the data obtained by the controlled client, By reproducing according to the request, there is an effect of providing the control client with data obtained by the controlled client.

Other objects and features of the present invention in addition to the above objects will be apparent from the description of the embodiments with reference to the accompanying drawings.

Hereinafter, an IMS-based controlled client control system and method thereof according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.

Prior to the detailed description of the present invention, the control client according to the present invention is a terminal operating based on IMS, and is a synchronous / asynchronous IMT-2000 having a WCDMA modem capable of transmitting and receiving data through a packet (PS) network of mobile communication. (International Mobile Telecommunication-2000) In addition to being a terminal, a notebook PC, a desktop PC, a Palm Personal Computer (PDA), and a Personal Digital Assistant (PDA) equipped with a WCDMA modem to use a packet network of mobile communication. It includes all communication devices such as an assistant, a smart phone, a wireless application protocol phone (WAP phone), and a mobile play-station.

1 is a block diagram of an IMS-based controlled client control system according to an embodiment of the present invention.

Here, data transmission and reception between the control client and the management server, the management server and the controlled client is preferably performed through the packet (PS) network of the mobile communication.

Referring to FIG. 1, an IMS-based controlled client control system includes a control client 110, a management server 120, a database (DB) 130, a controlled device 140, a sensor unit 180, and a mobile camera. 170 and dog feeding device 190.

The control client 110 is a terminal operating based on the IMS. The control client 110 requests and receives a list of controlled clients corresponding to the control client 110 from the management server 120 and controls the list of controlled clients. When the client is selected and connected to the selected controlled client through the management server 120 based on the IMS, the selected controlled client is controlled based on the IMS.

For example, when the controlled client 110 controls the controlled client, when the controlled client is the mobile camera 170, the control client 110 controls the mobile camera to perform functions such as up, down, left, right, zoom in, and zoom out. Can be transmitted to the controlled device 140 through the management server 120, the control client 110 to turn on or off the dog feeding device 190 when the controlled client is the dog feeding device 190. The control signal for performing the transmission may be transmitted to the controlled device 140 through the management server 120.

In this case, the control client 110 performs an authentication process with the management server 120, and if authentication is successful, the control server 110 is connected to the management server 120 and the 3GPP Session Initiation Protocol (SIP) session, and requests a list of controlled clients. For example, the SIP SUBSCRIBE signal may be transmitted to the management server 120 to receive a signal for the controlled client list, for example, a SIP NOTIFY signal to display the controlled client list.

Here, the SUBSCRIBE signal and the NOTIFY signal include an XML format in a body field.

As an example, as can be seen from the body field included in the NOTIFY signal shown in FIG. 2, it can be seen that the present invention includes an XML format. That is, the control client 110 includes the contents 210 indicating the controlled client list included in the SIP NOTIFY signal received from the management server 120, the content type 220, and the controlled client list contents 230. The content type 220 shows that the list of controlled clients is in XML format.

As such, the present invention has an advantage that it is easy to connect with other services because the IMS-based related signals are made in XML format. Of course, the XML format included in each signal may be determined by the service provider providing the present invention.

In addition, when the control client 110 receives a signal including predetermined event information from the management server 120, the control client 110 may display the content thereof and control the controlled client based on the event content based on the IMS.

In this case, the event information may be generated in at least one or more of the control client 110 and the control client list corresponding to the control client 110, and the device associated with the controlled client, for example, the microphone 150 and the sensor unit illustrated in FIG. 180 may be generated based on information received from the device.

Of course, a signal including event information received from the management server 120 from the management server 120, for example, the content 310, the content type 320, and the event notifying that the SIP NOTIFY signal shown in FIG. 3 is also an event. Content 330, which can be seen through the content format 320 that the event is in XML format. Here, the event content 330 may include an event type (sensor), a device ID and an event occurrence target, and the items included in the event content may vary depending on the situation.

On the other hand, the control client 110 according to the present invention, which corresponds to the control client 110 through the management server 120, for example, the data obtained by the control client 110, for example, video data or audio data. It is also possible to transmit to one controlled client. When the controlled client is not provided with the display means, only voice data may be transmitted. Of course, the voice data may be output through the speaker 160 provided in the controlled client itself or connected to the controlled client.

The database 130 stores information about the control client 110 and at least one controlled client corresponding to the control client 110.

Here, the control client 110 and the controlled client stored in the database 130 are registered devices through a registration process with the management server 120, and the database 130 is controlled for performing an authentication process of the controlled client. It also stores the password for the connection to the client. Of course, it is apparent that the database 130 may store various information for controlling the controlled client. In FIG. 1, the controlled client refers to a controlled device 140 in the form of a set-top box, and may mean that the controlled client 140 is used for the mobile camera 170 and the dog feeding device 190. It can also be generically named.

In addition, the database 130 preferably stores information about the control client 110 and the controlled client in a mapping table format, but is not limited thereto.

The management server 120 stores the information about the control client 110 and the controlled client in the database 130 through the registration process for the control client 110 and the controlled client, and authenticates the control client 110. And performs an authentication process of the controlled client, and when the controlled client list request signal is received from the controlled client 110, detects the controlled client list from the database 130 and provides the controlled client list to the controlled client 110.

At this time, the management server 120 performs the authentication for the controlled client based on the access password of the controlled client stored in the database 130, and if the password received from the control client 110 and the access password match It is determined that the authentication is successful and connects the SIP client with the controlled client.

When the authentication of the control client 110 and the controlled client selected by the control client 110 is successful, the management server 120 connects the SIP session to the controlled client to establish the IMS-based control client 110 and the controlled client. By connecting to the control, the control client 110 to control the controlled client based on the IMS.

When the management server 120 receives preset event information generated from a controlled client or a device related to the controlled client, the management server 120 provides the information to the corresponding control client or analyzes the event information and sends the analyzed information to the corresponding control client. Can provide.

For example, the event information may include detection of specific data by the sensor unit 180, voice information input through the microphone 150, and an example of data detected by the sensor unit 180 may include temperature. The temperature detection using a sensor and the gas detection using a gas sensor, and the like, for example, the voice information input through the microphone 150 may be a dog sound of a predetermined size or the like. Of course, such information may be determined as event information in the controlled device 140 and transmitted to the management server 120 through the packet network, and an event is transmitted from the controlled device 140 to the management server 120. For example, the PUBLISH signal preferably also includes an XML format.

Furthermore, the management server 120 stores the multimedia data including data acquired by the controlled client, for example, image data photographed by the mobile camera and audio data input through a microphone. ), And when the specific multimedia data is selected by the control client 110, the selected multimedia data may be played and provided to the control client 110. That is, the management server 120 stores the data obtained by the controlled client registered by the control client 110 and provides the same by the request of the controlling client 110. Of course, the management server 120 does not store all the data acquired by the controlled client in terms of management of the data storage space, but rather the data obtained in the time zone set by the control client 110 user and the controlled user set by the user. It is preferable to store only data for a specific case, such as data obtained by a client and data obtained by a specific event occurrence.

The controlled device 140 controls the controlled client, for example, the mobile camera 170 and the dog feeding device 190, based on the control signal received from the management server 120, and is obtained by the controlled client. The transmitted data is transmitted to the management server 120 through the packet network of the mobile communication, and transmits a signal including the event content generated when a predetermined event occurs to the management server 120.

For example, when the received control signal is a control signal associated with the mobile camera 170, the controlled device 140 moves the mobile camera 170 up, down, left, or right based on the control signal, or performs a function such as zoom in / zoom out. The image data captured by the mobile camera 170 is transmitted to the control client 110 in real time through the management server 120. Of course, the management server 120 may store the image data captured by the mobile camera 170 in the storage means or the database 130 while transmitting in real time to the control client 110.

In this case, the data acquired by the controlled client, for example, the image data photographed by the mobile camera 170 is broadcast to at least one or more control clients 110 that have registered the controlled client through the management server 120. In addition, when an event occurs from the controlled client or a device connected to the controlled client, information about the event occurrence may be transmitted to at least one control client that has registered the controlled client.

The controlled device 140 preferably includes a WCDMA modem so as to be connected to the management server 120 based on the IMS, and the event content included in the signal transmitted to the management server 120 is preferably configured in XML format. Do.

When the controlled device 140 receives the voice data transmitted from the control client 110 through the management server 120, the controlled device 140 outputs the received voice data through the speaker. Of course, when the controlled device 140 or the device connected to the controlled device 140 includes means for displaying the image data, the received image data is displayed when the image data transmitted from the control client 110 is received. You may.

The mobile camera 170 moves up, down, left, and right by the control of the controlled device 140 or captures image data photographed through a function such as zoom in / zoom out through a WCDMA modem provided in the controlled device 140. 120).

In this case, not only the video data but also the audio data input through the microphone 150 may be simultaneously transmitted to the management server 120.

The dog feeding device 190 is a device for feeding a dog by the control of the controlled device 140. For example, when the controlled device 140 receives a control signal for turning on or off the dog feeding device from the control client 110, the dog feeding device is turned on or off based on the received control signal to feed or feed the dog. You can block.

The sensor unit 180 includes at least one sensor, and outputs data obtained by the configured sensor to the controlled device 140.

Here, the sensor constituting the sensor unit 180 may include a temperature sensor, a humidity sensor, a gas sensor, an infrared sensor, and the like, but the sensor constituting the sensor unit 180 is not limited thereto, and is intended to be detected. The configuration of the sensor may vary.

As can be seen in Figure 1, the management server 120 in the present invention performs the authentication process of the IMS-based control client 110 and the controlled client after the authentication is successful, the control client 110 and the controlled client By connecting based on IMS, which is 3GPP SIP, and controlling the controlled client based on the IMS from the control client 110, the controlled client can be controlled as well as controlled using the mobile communication network even in an area where the Internet network is not connected. Event information generated at the client end may be received by the control client to control the controlled client based on the event information.

4 is a flowchart illustrating an IMS-based controlled client control method according to an embodiment of the present invention. Herein, the controlled client is assumed to be a device that acquires and transmits image data and audio data.

Referring to FIG. 4, in the IMS-based controlled client control method, the control client connects a 3GPP SIP session to access the management server. That is, the control client connects to the management server based on IMS.

The management server performs an authentication process for the control client connected based on the IMS. The management server performs an authentication process based on the data stored in the database whether the connected control client is registered in the service for controlling the controlled client. That is, it is determined whether authentication is successful based on whether the control client is registered in the database.

When the management server performs the authentication process for the control client based on the data stored in the database, if the authentication of the control client succeeds, a signal (200 OK) including information on the control client is transmitted to the control client, Upon receiving a signal SUBSCRIBE including an XML format in a body field for requesting a list of controlled clients corresponding to the controlling client, detecting a list of controlled clients corresponding to the controlling client from the database, and then detecting the list of controlled clients. The signal NOTIFY configured in this XML format, for example, as shown in FIG. 2, provides the control client with a signal NOTIFY including a body field.

If a specific controlled client is selected by the controlling client in the controlled client list, the management server performs an authentication process for the selected controlled client.

The management server receives an access password for the selected controlled client from the control client, and compares the received access password with the access password of the controlled client stored in the database to perform an authentication process. That is, the management server determines that authentication of the controlled client is successful when the two connection passwords match, otherwise, it fails.

If authentication of the selected controlled client succeeds, the management server connects the controlled client and the 3GPP SIP session to connect the controlled client and the controlled client based on the IMS.

The management server receives data transmitted in real time from the controlled client by using a Real-time Transport Protocol (RTP), for example, image data photographed by a mobile camera and audio data input into a microphone, and transmits the data to the control client. Similarly, when the control client is a terminal equipped with a camera and a microphone, for example, the data acquired by the control client transmits the image data captured by the camera and the audio data input to the controlled client. Of course, if the controlled client is not provided with means (e.g., a display device) capable of displaying the image data, it is not necessary to transmit the image data photographed by the control client, and similarly can output the audio data. If no means (e.g. speakers) are provided, it is not necessary to transmit the voice data input to the control client.

Through this process, the control client may receive data acquired by the controlled client in real time based on the IMS, and transmit a control signal to the controlled client through the management server when controlling the selected controlled client.

For example, when the controlled client is a mobile camera, the control client checks image data captured by the mobile camera in real time and transmits a control signal corresponding to a desired direction and zoom in / zoom out to the controlled client through the management server, thereby controlling the IMS. Based on this, the moving camera can be moved in a desired direction or zoomed in / out to obtain desired image data.

As another example, when the controlled client is a device connected to the mobile camera and the dog feeding device, the control client transmits a control signal for the movement of the mobile camera to the controlled client based on the image data captured by the mobile camera. When the dog feeding device needs to be turned on (off), a control signal for turning on (off) the dog feeding device may be transmitted to the controlled client. Through this, the control client can control the mobile camera and the dog feeding device to know the dog's condition and provide the dog with food.

As such, the controlling client controls the controlled client based on the IMS, and when the management server receives a signal for terminating the 3GPP SIP session from the controlling client, it transmits a response signal (200 OK) to the controlling client and at the same time, the controlled client. By transmitting a signal for terminating the 3GPP SIP session to receive a response signal (200 OK) for this, the connected SIP session is terminated.

Although FIG. 4 illustrates that the management server transmits the data acquired by the controlled client to the control client in real time, the present invention is not limited thereto, and the data stored by the controlled client may be stored in the management server. When data is requested by the control client after being stored in the database, the requested data may be reproduced and provided to the control client.

In addition, although the control client and the controlled client are illustrated and described in a 1: 1 relationship, the present invention is also applicable to the N: 1 relationship. That is, the data obtained by the controlled client while the one or more control clients are connected to the controlled client on the basis of the IMS base is transmitted not only to the one or more control clients connected on the IMS basis, but also by the control signal transmitted by the one or more control clients. The controlled client can be controlled.

In addition, the case in which the SIP session is terminated in FIG. 4 is described as the case where the management server receives a signal for terminating the SIP session from the control client, but is not limited thereto. The SIP session may be terminated even when an error of the controlling client or the controlled client is detected or an error occurs in the management server.

FIG. 5 is a flowchart illustrating a method of controlling an IMS-based controlled client according to another embodiment of the present invention, and illustrates a process of transmitting information on an event generated by a controlled client connected based on IMS to a control client. will be.

Referring to FIG. 5, the method for controlling a controlled client based on IMS is the same as that of the SIP session connection process between the control client and the management server, and the SIP session connection process between the management server and the controlled client. Explain.

That is, when the control client and the management server are connected based on the IMS, the management server performs an authentication process for the control client connected based on the IMS.

If the management server successfully authenticates the control client, the management server transmits a signal 200 OK including information about the control client, and receives a signal SUBSCRIBE requesting a list of controlled clients corresponding to the control client from the control client. If a control client list corresponding to the control client is detected from the database, a signal NOTIFY including the content thereof is transmitted to the control client, and the control client list is provided to the control client.

When the controlled client is selected by the controlling client, the management server performs an authentication process with respect to the selected controlled client based on the access password of the controlled client, and when the authentication of the controlled client is successful, the managed server performs the controlled client. Connect the 3GPP SIP session with the control client and the controlled client based on IMS.

If a predetermined event occurs in the controlled client terminal while the controlling client and the controlled client are connected based on the IMS, the signal PUBLISH including information on the generated event is transmitted to the management server, and the management server sends an event to the management server. Receiving a signal (PUBLISH) including information about the information and transmits a corresponding signal (NOTIFY) to the control client to provide the event occurrence information to the control client.

Here, the PUBLISH and NOTIFY signals form a body field in XML so that they can be linked with other services.

The controlling client controls the controlled client based on the event occurrence information. Of course, the manner in which the controlling client controls the controlled client may vary depending on the controlled client.

After the control client controls the controlled client according to the occurrence of the event, when the management server receives a signal for terminating the 3GPP SIP session from the control client, the management server transmits a response signal (200 OK) to the control client and at the same time, the controlled client. By transmitting a signal for terminating the 3GPP SIP session to receive a response signal (200 OK) for this, the connected SIP session is terminated.

The IMS-based controlled client control system and method thereof according to the present invention can be modified and applied in various forms within the scope of the technical idea of the present invention and are not limited to the above embodiments. In addition, the embodiments and drawings are merely for the purpose of describing the contents of the invention in detail, not intended to limit the scope of the technical idea of the invention, the present invention described above is common knowledge in the technical field to which the present invention belongs As those skilled in the art can have various substitutions, modifications, and changes without departing from the spirit of the present invention, it is not limited to the embodiments and the accompanying drawings. And should be judged to include equality.

1 is a block diagram of an IMS-based controlled client control system according to an embodiment of the present invention.

2 is an exemplary diagram of a body field of a NOTIFY signal in which a control client receives a list of controlled clients from a management server.

3 is an exemplary diagram of a body field of a NOTIFY signal in which a control client receives event information generated by a controlled client from a management server.

4 is a flowchart illustrating an IMS-based controlled client control method according to an embodiment of the present invention.

5 is a flowchart illustrating an IMS-based controlled client control method according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: control client

120: management server

130: database

140: controlled device

170: moving camera

180: sensor unit

190: dog feeding

Claims (14)

Includes a management server, The management server Providing to the control client an IMS-based controlled client list corresponding to the control client requested from the connected IMS-based control client; If the authentication is performed by performing authentication on the selected controlled client in the controlled client list, the control client and the controlled client are connected based on the IMS. Control the controlled client based on a control signal of the control client, And receiving information on an event occurrence from at least one of the controlled clients in the list of controlled clients, providing the information to the controlling client. The method of claim 1, The format for requesting the controlled client list and the format for providing the controlled client list are IMS-based controlled client control system, characterized in that the XML (eXtensible Markup Language) format. The method of claim 1, The IMS-based controlled client control system Database that stores information about at least one registered control client and at least one registered controlled client More, The management server IMS-based controlled client control system, characterized in that for performing the authentication process of the connected control client and the selected controlled client using the information stored in the database. delete The method of claim 1, The information format for the event occurrence received by the management server is IMS-based controlled client control system, characterized in that the XML format. The method of claim 1, The management server IMS-based controlled client control system, characterized in that for performing authentication based on the password set during registration of the selected controlled client. The method of claim 1, The management server IMS-based controlled client control system, characterized in that for receiving the data obtained by the control client and transmits the received data to the selected controlled client to be output from the selected controlled client. The method of claim 1, The controlled client is An IMS-based controlled client control system comprising a mobile camera operating on an IMS basis. The method of claim 1, The controlled client is IMS-based controlled client control system comprising a dog feeding device. The method of claim 1, The management server Store data obtained by the controlled client corresponding to the controlling client, IMS-based controlled client control system, characterized in that for reproducing the data selected by the control client of the stored data to the control client. Performing authentication on the connected IMS-based control client; Providing, to the control client, an IMS-based controlled client list corresponding to the control client requested by the control client when authentication to the control client is successful; Performing authentication on a controlled client selected by the controlling client in the controlled client list; Connecting the selected control client to the selected controlled client based on an IMS if authentication of the selected controlled client is successful; Controlling the controlled client based on the received control signal of the controlling client; Receiving information on a predetermined event occurrence transmitted from at least one of the controlled client list; And Providing the control client with information about the received event occurrence IMS-based controlled client control method comprising a. delete The method of claim 11, The format for requesting the controlled client list from the controlling client and the format for providing the controlled client list to the controlling client may include: IMS-based controlled client control method characterized in that the XML format. The method of claim 11, The IMS-based controlled client control method Storing data obtained by the controlled client; And Reproducing the data selected by the control client among the stored data and providing the data to the control client; IMS-based controlled client control method characterized in that it further comprises.

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