WO2015099316A1

WO2015099316A1 - M2m network system and method for providing multimedia data to user terminal through m2m network

Info

Publication number: WO2015099316A1
Application number: PCT/KR2014/012001
Authority: WO
Inventors: 심재희; 김영채
Original assignee: 주식회사 엔텔스
Priority date: 2013-12-23
Filing date: 2014-12-08
Publication date: 2015-07-02
Also published as: KR20150081460A; KR101730101B1

Abstract

A method (500) for providing multimedia data to a user terminal through a M2M network comprises: a step (510) of transmitting a service command which a user terminal connected to a M2M network requests a multimedia service to a M2M server having a M2M platform embedded therein; a step (520) of transmitting, by the M2M server, the service command to a sensor device which collects multimedia data; a step (530) of receiving the service command and providing the multimedia data to the multimedia server, by the sensor device; and a step (540) of transmitting, by the multimedia server, the multimedia data to a user terminal.

Description

Method of providing multimedia data to user terminal through M2M network system and M2M network

The technology described below relates to a method and system for providing a user terminal with a large amount of multimedia data collected by a sensor device in an M2M network.

Recently, research and market for M2M communication are growing. In the M2M network, the sensor device collects specific data and delivers the data to the M2M network, and the control configuration of the M2M network provides the collected data to a specific user. M2M network basically collects small size data through sensor device and provides data service based on it.

As mentioned above, the conventional M2M network mainly deals with small data. This is basically because the sensor device corresponding to the sensor node uses limited energy. However, there are some sensor devices that process continuous and relatively large data such as CCTV. Conventional M2M networks and M2M platforms have limitations in processing large amounts of multimedia data.

The technology described below is intended to provide an M2M network capable of providing a large amount of multimedia data to the user.

The M2M network system transmits a sensor device for collecting multimedia data, a data command for requesting multimedia data, or a service command for requesting a service using the multimedia data, and receives multimedia data from a user terminal receiving the multimedia data or service and a sensor device. In addition, the sensor device receives the multimedia server and a data server or a data command to transmit the multimedia data directly to the user terminal, or to create a service using the multimedia data and to transmit the service data for providing the service to the user terminal. It includes an M2M server to control to provide multimedia data or services to the user terminal through.

The M2M server transmits a data command or a service command to the sensor device, and upon receiving the data command or service command, the sensor device transmits the multimedia data collected by the sensor device to the multimedia server.

The M2M server stores the access information for the multimedia server, and transmits the access information to the user terminal when the user terminal transmits a data command or a service command.

The M2M server stores the connection information for the multimedia server, and transmits the connection information to the sensor device when the sensor device requests it.

The SMS gateway may further include an SMS gateway that receives a data command or a service command transmitted from an M2M server and delivers the data command or service command as an SMS message to a sensor device that is not based on IP. Is connected through.

A method of providing multimedia data to a user terminal through an M2M network includes transmitting a service command for requesting a multimedia service from a user terminal connected to the M2M network to an M2M server embedded in an M2M platform, and the M2M server collects multimedia data. Transmitting the service command to the device, the sensor device receiving the service command, providing the multimedia data to the multimedia server, and the multimedia server transmitting the multimedia data to the user terminal.

The service command includes at least one of an identifier of the sensor device, a type of multimedia data, or a control command for controlling streaming of the multimedia data.

The user terminal requests connection information for accessing the multimedia from the M2M server in order to establish a session with the multimedia server before receiving the multimedia data.

The sensor device may request connection information for accessing the multimedia from the M2M server in order to establish a session with the multimedia server before providing the multimedia data to the multimedia server.

The M2M server may transmit a service command to the SMS gateway, and the SMS gateway may further include transmitting the service command as an SMS message to a sensor device that is not IP-based.

The technology described below may use a separate multimedia server associated with a sensor device and directly connect a user terminal requesting a service to the multimedia server to stream a large amount of multimedia data to the user.

1 is an example of a block diagram showing a configuration of an M2M network system.

2 is another example of a block diagram illustrating a configuration of an M2M network system.

3 is an example of a flowchart of a method for providing multimedia data to a user terminal through an M2M network.

4 is a flowchart illustrating a process of providing multimedia data to a user terminal in the M2M network system of FIG. 1.

FIG. 5 is a flowchart illustrating a process of providing multimedia data to a user terminal in the M2M network system of FIG. 2.

As the present invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms first, second, A, B, etc. may be used to describe various components, but the components are not limited by the terms, but merely for distinguishing one component from other components. Only used as For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It is to be understood that the present invention means that there is a part or a combination thereof, and does not exclude the presence or addition possibility of one or more other features or numbers, step operation components, parts or combinations thereof.

Prior to the detailed description of the drawings, it is to be clear that the division of the components in the present specification is only divided by the main function of each component. That is, two or more components to be described below may be combined into one component, or one component may be provided divided into two or more for each function. Each of the components to be described below may additionally perform some or all of the functions of other components in addition to the main functions of the components, and some of the main functions of each of the components are different. Of course, it may be carried out exclusively by. Therefore, the existence of each component described through this specification should be interpreted functionally, and for this reason, the configuration of the components according to the

M2M network system

100, 200 of the present invention can achieve the object of the present invention. It is clearly to be understood that the drawings may differ from the corresponding drawings to the extent that it is possible.

In addition, in carrying out the method or operation method, each process constituting the method may occur differently from the stated order unless the context clearly indicates a specific order. That is, each process may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

First, the terms used in the following description will be described. The technology described below relates to an M2M network system, its configuration and operation. Accordingly, sensor devices, M2M servers, gateways, servers, and so forth, which are referred to below, are all M2M network system elements. In some cases, in order to clarify this, it will be referred to as a "sensor device" and the like, but the same configuration is also referred to as "terminal" in which M2M is omitted.

The network refers to a physical environment or a device capable of transmitting and receiving data between a specific device and a device by wire or wirelessly. In the technology described below, a device connecting various components of the M2M network system may use various technologies or communication methods. In other words, the technology described below does not limit the scope of the technology described below in terms of the type of network connecting the configuration.

The sensor device refers to a device that collects various pieces of information data, such as sensor nodes in a sensor network. For example, it refers to a device for collecting specific data such as a sensor for measuring temperature, a sensor for measuring humidity, a CCTV for capturing an image, and the like. Furthermore, a device for transmitting a signal for controlling a specific mechanism, such as a device for controlling indoor heating and the like, is also included. However, the technique described below is more suitable for a sensor device that handles a large amount of data.

The user terminal is connected to an M2M network such as a mobile phone, a smart phone, a tablet PC, and the like to receive a service using data collected and managed by the M2M network. For example, an image captured by CCTV, which is a sensor device, may be checked by a user at a remote location through his or her smartphone as a user terminal.

In addition, in the following specification, technologies or configurations that are not specifically described in addition to the core configurations of the technologies described below refer to technologies or configurations that are well known in the conventional M2M network system, or refer to published M2M related standard documents. Knowledgeable ones will be fully understood.

The technology described below is to provide multimedia data collected by a sensor device to a user terminal receiving a service. For example, to provide an image captured by a camera or a CCTV to a user in real time. Since a conventional M2M network basically consists of a small amount of data, a separate configuration and operation are required for large capacity multimedia transmission.

If a dedicated application for playing an image is installed in the user terminal, the multimedia data may be provided directly to the user terminal. Alternatively, the separate multimedia server managing the multimedia data may generate a separate service using the multimedia data and transmit data for executing the corresponding service to the user terminal. Data for executing a service using multimedia data is referred to as service data hereinafter. For example, the sensor device collects an image of a specific point, and the multimedia server may add information (emoticons, video representing the weather) to represent the weather. In this case, additional data will be added to the service data collected by the sensor device.

Hereinafter, the

M2M network systems

100 and 200 and a method 500 for providing multimedia data to a user terminal through the M2M network will be described in detail with reference to the accompanying drawings.

1 is an example of a block diagram showing a configuration of an M2M network system 100.

The M2M network system 100 transmits a sensor device 110 for collecting multimedia data, a data command for requesting multimedia data, or a service command for requesting a service using the multimedia data, and receives the multimedia data or service. ), A multimedia server 160 and a data command for receiving multimedia data from a sensor device, transmitting multimedia data directly to a user terminal, or generating service using the multimedia data and transmitting service data to a user terminal for providing a service. Or M2M server 150 that receives the service command and controls the sensor device to provide multimedia data or services to the user terminal through the multimedia server.

As described above, the sensor device 110 is a device that collects specific data through a sensor device or an imaging device. The sensor device 110 may collect a large amount of multimedia data such as an image.

The sensor device 110 is connected to the gateway 130 located at a short distance through the first networks Network1 and 120. The first networks Network1 and 120 may be networks such as Zigbee, NFC, Bluetooth, Wi-Fi, SUN, LAN networks, Wibro networks, mobile 3G networks, mobile 4G networks, and the like. As a result, various short-range communication networks and mobile communication networks can be used.

The multimedia server 160 stores the multimedia data collected by the sensor device 110 and transmits the multimedia data to the user terminal 170. An example in which the multimedia data is transmitted is illustrated only in the multimedia server 160 connected to the first network 120.

1 illustrates a form in which the multimedia server 160 is connected to the first network 120 and a form in which the multimedia server 160 is connected to the second network 140 (shown in dashed lines). It does not matter what network configuration the multimedia server 160 is connected to the sensor device 110. For example, it may be connected via the Internet through a WiFi AP, or may be connected to the Internet through a core network of a mobile communication network. However, it is sufficient that the sensor device 110 and the user terminal 170 can be connected through a network using a standardized protocol (TCP / IP, etc.) so as to establish a session through a network.

The gateway 130 illustrated in FIG. 1 is a device that communicates with the sensor device 110. Although the distance of the gateway 130 may vary according to the type of the first network 120, it is generally relatively similar to the sensor device 110. It is located in close proximity (thus shown in one area with the sensor device 110 as a dashed block). The gateway 130 communicates with one or more sensor devices to transfer data collected by the sensor devices to a controller (eg, the M2M server 150) of the M2M network. For example, the data collected continuously from the sensor devices 110 disposed in a certain region may be received and transmitted to the M2M server 150 in real time or at regular time intervals. However, in the technology described in the specification, the function performed by the gateway 130 is not important.

The gateway 130 is connected to the M2M network core configuration through the second network Network2 140. Various networks may be used for the second network Network2 140, like the first network 120. The gateway 130 and the M2M server 150 are generally located remotely from each other. Therefore, although a wired network such as a telephone line network or an optical communication may be used, the second network (Network2, 140) generally uses a mobile communication network. In the latter case, the M2M server 150 is connected to the mobile communication core network. For example, it may be connected to a configuration such as Packet Data Serving Node (PDSN) of 3G network or Serving Gateway (SGW) of 4G network. Therefore, in FIG. 1, the M2M server 150 and the second network 140 are illustrated as one dotted block.

The sensor device 110 may be classified into a device that communicates based on an Internet address (IP) and a device that is not IP based on a communication method. The sensor device 110 shown in FIG. 1 is an IP-based communication device. Therefore, data may be exchanged with the gateway 130 and the multimedia server 160 through an IP-based communication protocol.

The user terminal 170 may request multimedia data or service data specific to the M2M server 150. For example, when a user delivers a request message to the M2M network through the user terminal 170 in order to receive a video captured by the CCTV.

The M2M server 150 transmits a data command or a service command to the sensor device 110, and when the sensor device 110 receives the data command or a service command, the M2M server 150 collects multimedia data collected by the sensor device 110. To be sent).

The M2M server 150 corresponds to a control configuration for transmitting data and signals of a network like a gateway device. The actual system implementation will install a software platform on the gateway device to perform operations specific to the M2M network. For example, a platform (M2M platform) is installed in a device such as an evolved packet data gateway (ePDG) that manages connection with a heterogeneous network in a 4G network to implement the M2M server 150 described in the specification.

The M2M server 150 stores the access information for the multimedia server 160, and transmits the access information to the sensor device when the sensor device 110 requests it. The sensor device 110 establishes a session with the multimedia server 160 using the access information, and transmits its multimedia data to the multimedia server 160.

The M2M server 150 stores the access information for the multimedia server 160, and transmits the access information to the user terminal 170 when the user terminal 170 transmits a data command or a service command. Through this, the user terminal 170 may establish a session directly with the multimedia server 160 without passing through the core configuration of the M2M network. The user terminal 170 receives multimedia data or service data stored in the multimedia server 160 where a session is established or received by the multimedia server 160 in real time.

The access information may be at least one of an IP address of a multimedia server, authentication information for accessing a multimedia server, or information on a time for providing multimedia data or a service.

The user terminal 170 may transmit a control command for controlling the transmission of multimedia data or the provision of a service to the sensor device 110 through the M2M server 150. The control command includes, for example, a video transmission command, a video transmission stop command, a video retransmission command, a video transmission stop after the video stop command, a session release command, and the like. The sensor device 110 receiving the control command transmits the collected multimedia data to the multimedia server 160 in response to the control command.

2 is another example of a block diagram illustrating a configuration of the M2M network system 200.

The M2M network system 100 transmits a sensor device 210 for collecting multimedia data, a data command for requesting multimedia data, or a service command for requesting a service using the multimedia data, and receives the multimedia data or service 270. ), A multimedia server 260 and a data command for receiving multimedia data from a sensor device, transmitting multimedia data directly to a user terminal, or generating service using the multimedia data and transmitting service data to a user terminal for providing a service. Or M2M server 250 for receiving a service command and controlling the sensor device to provide multimedia data or services to the user terminal through the multimedia server.

FIG. 2 is the same name as that of the M2M network system 100 of FIG. 1 in the M2M network system 200, and is basically the same as that of the M2M network system 100. For example, the M2M server 250 is the same as the M2M server 150, and the user terminal 270 is the same as the user terminal 170. The gateway 130 of FIG. 1 is not shown in FIG. This is because the gateway 130 is not an essential configuration for the technology described in the specification.

The M2M network system 200 of FIG. 2 differs from the M2M network system 100 of FIG. 1 in that the SMS gateway 240 exists. The sensor device 210 of FIG. 2 is a device that does not communicate based on IP. That is, a sensor device that uses short-range wireless communication that is not IP-based or is connected by wire to collect data. Therefore, the first network 220 refers to a wireless or wired communication network that is not IP-based.

For example, the first network 220 may be a mobile communication network that does not use IP communication. Mobile communication networks also use IP communications with base stations, core networks, but conventional 2G or 3G networks do not use IP communications. In this case, the sensor device 210 may receive a specific command through an SMS (short message) transmitted by the SMS gateway 240.

In order for the non-IP based sensor device 210 to transmit multimedia data to the multimedia server 260, the sensor device 210 must also transmit data to the multimedia server 260 in a manner not using IP. Meanwhile, since the multimedia server 260 must establish a session with the user terminal 270 and transmit data, the multimedia server 260 and the user terminal 270 can also transmit data in a manner not based on IP. Furthermore, when the multimedia server 260 is a hybrid type that can use both an IP-based communication method and a non-IP communication method, the multimedia server 260 may be connected to the user terminal 270 by an IP method.

The SMS gateway 240 receives a data command or service command transmitted from the M2M server 250 and transmits the data command or service command as an SMS message to the sensor device 210 that is not based on IP. Meanwhile, the SMS gateway 240 may be connected to the core configuration of the M2M network as shown in FIG. 2.

3 is an example of a flowchart for a method 500 of providing multimedia data to a user terminal via an M2M network.

The method 500 for providing multimedia data to a user terminal through an M2M network includes transmitting a service command for requesting a multimedia service from a user terminal connected to the M2M network to a M2M server incorporating an M2M platform (510). A step 520 of transmitting a service command to a sensor device collecting multimedia data, the sensor device receives a service command, providing a multimedia data to the multimedia server (530) and the multimedia server transmits the multimedia data to the user terminal Step 540 is performed.

The service command may include at least one of an identifier of a sensor device, a type of multimedia data, and a control command for controlling streaming of the multimedia data.

The

user terminals

170 and 270 may request connection information for accessing the multimedia from the M2M server 250 to establish a session with the multimedia server before receiving the multimedia data.

The

sensor devices

110 and 210 access information for connecting with the multimedia to the

M2M server

150 and 250 to establish a session with the

multimedia servers

160 and 260 before providing the multimedia data to the

multimedia servers

150 and 250. You can request The connection information in the case of IP-based sensor device 110 may include the IP address of the multimedia server, and the connection information in the case of non-IP-based sensor device 210 may include identifier information according to a communication protocol other than an IP address. Will include.

The M2M server 250 may transmit a service command to the SMS gateway 240, and the SMS gateway 240 may transmit the service command as an SMS message to the sensor device 210 that is not based on IP. The M2M system 200 of FIG. 2 will correspond to this case.

4 is a flowchart illustrating a process of providing multimedia data to a user terminal in the M2M network system 100. In FIG. 4, the red box indicates a process for preparing the multimedia data collected by the sensor device 110 in the multimedia server 160. That is, it can be seen that the user controls the sensor device 110. A portion indicated by a blue box in FIG. 4 is a process in which the user terminal 170 receives multimedia data through the multimedia server 160.

The user terminal 170 transmits a message for requesting a multimedia service to the M2M server 150 (311). In addition, it is possible to transmit a command to control the multimedia data simultaneously or sequentially (311). For example, "start" of the control command is a command for establishing a session between the sensor device 110 and the multimedia server 160 and transmitting multimedia data in real time, and "Pause" is for maintaining the session but stopping the transmission of the multimedia data. "Restart" is a command for transmitting multimedia data in real time while data transmission is stopped, and "Stop" is a command for stopping data transmission and releasing the session. Such a command is only one example of a control command, and various commands may be used according to embodiments. For example, it may further convey information such as multimedia data transmission time or duration.

The M2M server 150 transmits a control command to the sensor device 110 through a mobile communication network (312). The sensor device 110 requests the M2M server 150 for access information for accessing the multimedia server 160 to which the collected multimedia data is transmitted (313). The M2M server 150 transmits the stored connection information to the sensor device 110 (314).

The sensor device 110 establishes a session with the multimedia server 160 using the connection information (315). The sensor device 110 transmits the multimedia data to the multimedia server 160 according to the control command received after the session is established (316). When all transmissions are completed, the sensor device 110 ends the session with the multimedia server 160 (317).

Thereafter, the sensor device 110 may transmit the result of the multimedia data transmission (streaming) to the M2M server 150 (318). Further, the M2M server 150 may transmit the processing result of the service request of the user terminal 170 (Push), or the user terminal 170 may inquire the processing result to the M2M server 150 (319).

The user terminal 170 requests connection information for accessing the multimedia server 160 from the M2M server 150 (321), and receives the connection information from the M2M server 150 (322). The user terminal 170 establishes a session with the multimedia server 160 using the access information and receives multimedia data from the multimedia server 160 in operation 323. The process of receiving the multimedia data from the multimedia server 160 by the user terminal 170 may be performed at the same time when the sensor device 110 transmits the multimedia data to the multimedia server 160. After transmitting all the multimedia data to the server 160, the multimedia data may be streamed.

5 is a flowchart illustrating a process of providing multimedia data to a user terminal in the M2M network system 200. In FIG. 5, the red box indicates a process of preparing the multimedia data collected by the sensor device 110 in the multimedia server 60. That is, it can be seen that the user controls the sensor device 210. In FIG. 5, a blue box indicates a process in which the user terminal 270 receives multimedia data through the multimedia server 260. The process of FIG. 5 is basically similar to the process of FIG.

The user terminal 270 transmits a message for requesting a multimedia service to the M2M server 150 (411). In addition, a command for controlling multimedia data may be transmitted simultaneously or sequentially (411).

The M2M server 250 transmits a control command to the SMS gateway 240 (412), and the SMS gateway 240 transmits a control command to the sensor device 210 through SMS (413). The sensor device 210 requests the M2M server 250 for access information for connecting to the multimedia server 260 to which the collected multimedia data is transmitted (414). The M2M server 250 transmits the stored connection information to the sensor device 210 (415). Steps 414 and 415 may be performed via the SMS gateway 240 or may be directly performed between the sensor device 210 and the M2M server 250.

The sensor device 210 establishes a session with the multimedia server 260 using the connection information (416). The sensor device 210 transmits the multimedia data to the multimedia server 260 according to the control command received after the session is established (417). When all transmissions are completed, the sensor device 210 ends the session with the multimedia server 260 (418).

Thereafter, the sensor device 210 may transmit the result of the multimedia data transmission (streaming) to the M2M server 250 (419). Process 419 may also be performed via the SMS gateway 240 or may be directly performed between the sensor device 210 and the M2M server 250.

Further, the M2M server 250 may transmit the processing result of the service request of the user terminal 270 (Push), or the user terminal 270 may inquire the processing result to the M2M server 250 (420).

The user terminal 270 requests access information for accessing the multimedia server 260 from the M2M server 250 (431), and receives access information from the M2M server 250 (432). The user terminal 270 establishes a session with the multimedia server 160 using the access information, and receives the multimedia data from the multimedia server 260 in operation 433. The process of receiving the multimedia data from the multimedia server 260 by the user terminal 270 may be performed at the same time when the sensor device 210 transmits the multimedia data to the multimedia server 260, and the sensor device 210 performs the multimedia. After transmitting all the multimedia data to the server 260, the multimedia data may be streamed.

The embodiments and drawings attached to this specification are merely to clearly show some of the technical ideas included in the present invention, and those skilled in the art can easily infer within the scope of the technical ideas included in the specification and drawings of the present invention. Modifications that can be made and specific embodiments will be apparent that all fall within the scope of the present invention.

[Description of the code]

100: M2M network system 110: sensor device

120: first network 130: gateway

140: second network 150: M2M server

160: multimedia server 170: user terminal

200: M2M network system 210: sensor device

220: first network 230: second network

240: SMS Gateway 250: M2M Server

260: multimedia server 270: user terminal

Claims

In an M2M network system,

A sensor device for collecting multimedia data;

A user terminal transmitting a data command for requesting the multimedia data or a service command for requesting a service using the multimedia data and receiving the multimedia data or the service;

Receiving and storing the multimedia data from the sensor device, transmitting the multimedia data directly to the user terminal, or generating the service using the multimedia data and transmitting service data for providing the service to the user terminal. Multimedia server; And

An M2M server receiving the data command or the service command and controlling the multimedia server to provide the multimedia data or the service data to the user terminal.
The method of claim 1,

The sensor device is a device that communicates based on an Internet address (IP), and the sensor device and the M2M server are connected to each other using at least one of a mobile communication network, a Wi-Fi network, a WiBro network, a LAN network, or a wireless communication network. system.
The method of claim 1,

The M2M server transmits the data command or service command to the sensor device, and the sensor device transmits the multimedia data collected by the sensor device to the multimedia server when the data command or service command is received.
The method of claim 1,

The M2M server stores the access information for the multimedia server, and transmits the access information to the user terminal when the user terminal requests.
The method of claim 1,

The M2M server stores the connection information for the multimedia server, and transmits the connection information to the sensor device when the sensor device requests.
The method according to claim 4 or 5,

The access information includes at least one of an IP address of the multimedia server, authentication information for accessing the multimedia server, or information on a time for providing the multimedia data or the service.
The method of claim 1,

The user terminal further transmits a control command for controlling the transmission of the multimedia data or the provision of the service to the M2M server, the M2M server transmits the control command to the sensor device.
The method of claim 1,

An SMS gateway for receiving the data command or the service command transmitted from the M2M server and transmitting the data command or the service command in an SMS message to the sensor device that is not based on IP, wherein the SMS gateway and the The sensor device is an M2M network system connected through a mobile communication network.
Transmitting, by a user terminal connected to the M2M network, a service command requesting a multimedia service to an M2M server incorporating an M2M platform;

M2M server transmitting the service command to a sensor device for collecting multimedia data;

The sensor device receiving the service command and transferring the collected multimedia data to a multimedia server; And

The multimedia server provides the multimedia data to the user terminal via the M2M network comprising the step of transmitting the received multimedia data to the user terminal.
The method of claim 9,

And the service command comprises at least one of an identifier of the sensor device, a type of the multimedia data, and a control command for controlling the streaming of the multimedia data.
The method of claim 9,

The user terminal

And providing the multimedia data to the user terminal through the M2M network requesting the M2M server access information for accessing the multimedia in order to establish a session with the multimedia server before receiving the multimedia data.
The method of claim 9,

The sensor device

And providing the multimedia data to the user terminal through an M2M network requesting the M2M server access information for accessing the multimedia to establish a session with the multimedia server before providing the multimedia data to the multimedia server.
The method of claim 9,

The M2M server transmits the service command to an SMS gateway, and the SMS gateway transmits the service command as an SMS message to the sensor device that is not IP based, and transmits the multimedia data to the user terminal through the M2M network. How to give.