KR100690618B1 - System for moving picture service between heterogeneous networks and method thereof - Google Patents

Abstract

The present invention relates to a video service system and method based on a heterogeneous network. In particular, a UPnP AV player can play a video provided by a producer in a DTVLink network in an environment in which both an IEEE1394-based DTVLink network and an IP-based UPnP AV network exist at the same time. The purpose is to make it. The present invention for achieving this purpose includes a DTVLink network (110) for supporting DTVLink-based home networking, including a DTVLink consumer (111) and a DTVLink producer (112); A UPnP network 130 that supports UPnP-based home networking, including a UPnP AV control point 131 and a UPnP AV player 132; The user input from the UPnP AV control point 131 is transmitted to the DTVLink producer 112, and the video file of the DTVLink producer 112 is transferred to the UPnP AV player 132 and converted into a form that can be mutually recognized. The DTVLink / UPnP AV service bridge 120 is characterized by including the configuration.

Description

Heterogeneous network based video service system and method {SYSTEM FOR MOVING PICTURE SERVICE BETWEEN HETEROGENEOUS NETWORKS AND METHOD THEREOF}

1 is a block diagram of a video service system according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a DTVLink / UPnP AV service bridge in FIG. 1; FIG.

Explanation of symbols on the main parts of the drawings

110: DTVLink Network 112: DTVLink Producer

120: DTVLink / UPnP AV Service Bridge

130: UPnP AV network 131: UPnP control point (CP)

132: UPnP AV Player 210: DTVLink Controller and Consumer

211,221: connection management unit 212,222: video conversion / transmission unit

The present invention relates to home networking, and more particularly, to a video service system and method based on heterogeneous networks.

Device Architecture 1.0은 분산 및 개방 네트워킹 구조를 기반으로, IP 기술을 사용하여 홈 네트워크 내의 각 가전 제품들이 중앙 집중의 관리 를 받지 않고 대신 피어투피어 (seamless peer to peer) 네트워킹이 가능하도록 한다. first,

Device Architecture 1.0 is based on a distributed and open networking architecture that uses IP technology to enable each appliance in the home network to be seamlessly peer-to-peer instead of centrally managed.

The UPnP network consists of a control point (CP) that controls the device and a device that provides a service.

The user can find (discovery, description), control (control) and receive events through the interface provided by the control point (CP).

The UPnP device describes its service description in the form of XML (eXtensible Markup Language) at the time of operation, and provides the user with an interface according to the device by UPnP control point (CP) interpreting the device after discovery.

In particular, the UPnP AV system includes a media server (MS; Media Server) for providing media data to a home network, a media renderer (MR;) for playing media data over a home network, and the media server and the media renderer. Consists of an AV Control Point (CP) for controlling.

In order to inform the control point CP of the directory information, the media server MS informs the media file of the media file using the direct file system whenever there is an UPnP action.

When media data play is set in the UPnP AV network, a connection is established between the media server and the media renderer to transmit the media data in a streaming manner to play the media file in the media renderer.

At this time, the streaming method can be used in any of a variety of methods presented in the current UPnP AV uses the Out-of-Band transfer protocol without separately specifying the streaming method. For example, when RTP is used for media transmission, the transmission status of media data can be monitored using RTCP, and the transmission parameters can be adjusted based on this.

IEEE 1394, a serial bus interface standard jointly proposed by Apple and Texas Instruments in 1986, was developed for large-capacity multimedia data exchange between AV devices and became an industry standard in 1995.

The biggest feature of IEEE 1394 is that it can transmit 100 ~ 400Mbps at high speed, and it is currently being developed to transmit at 800Mbps and 1.6Gbps, so it is possible to directly connect multimedia peripheral devices such as scanner, digital camera, digital video camera, etc. By connecting, you will be able to use digital audio or video information in real time. Since IEEE 1394 supports asynchronous transfer and isochronous transfer, it is suitable for high-definition video transmission to guarantee real-time transmission.

The physical advantages of IEEE 1394 include the ability to connect several types of peripherals into a single, simple, common plug-in serial connector and use a thin serial cable rather than a thick parallel cable. In other words, it supports Hot Plug and Plug and Play that can be connected without interrupting the use of the device, and has the ability to connect peripheral devices in various ways without terminating devices or complicated settings. .

With the above features, there are more and more products supporting IEEE 1394, including products such as digital camcorders, digital video editing equipment, digital VCRs, digital cameras, digital audio players, 1394 ICs, connectors, cables, and test equipment. And 1394 basic components, such as software toolkits, are being announced one after another, and this trend is expected to continue.

In addition, DTVLink has been proposed as a technology for remotely UI in the IEEE 1394 environment, which is a producer for providing a UI, a consumer for outputting the UI on the screen, and a control between the producer and the consumer. It consists of a controller. Usually the consumer and the controller are on the same device (ex, DTV).

The controller discovers / selects producers connected on the IEEE 1394 bus and performs connection management to allow direct UI transfers between producers and consumers.

In addition, the control of the video device using the EIA / CEA-931 and the DTVLink can control the DTV and A / V source devices using the DTV remote control, thereby eliminating inconvenience caused by the user using the remote control of various products. To this end, producers and consumers must be implemented in accordance with the standards of EIA-775-A, EIA / CEA-849, EIA-799, and EIA / CEA-931.

However, in general, when a plurality of devices are connected to one network, one communication standard must be supported for data transmission and reception.

If a device controlled according to a communication standard different from an existing device is connected to a network, there is a problem in that a home network system cannot be integrated into a single network because data transmission and reception through the network are not possible.

That is, when the IEEE 1394 based device and the UPnP based device exist in one network, there is a problem that the UPnP based device cannot reproduce the IEEE 1394 based multimedia because communication between them is impossible.

Accordingly, the present invention provides a heterogeneous network in which a UPnP AV player can play a video provided by a producer in a DTVLink network in an environment in which both an IEEE1394-based DTVLink network and an IP-based UPnP AV network exist at the same time. The purpose of the present invention is to provide a video service system and method.

In order to achieve the above object, the present invention provides HD-quality video provided by a producer in a DTVLink network by a UPnP AV player in an environment in which DTVLink, an IEEE1394-based UI remote control and video sharing technology, and UPnP AV, an IP-based UPnP media sharing technology, exist simultaneously. It is characterized in that the DTVLink / UPnP AV video service bridge to enable the playback.

That is, in order to achieve the above object, the present invention provides a plurality of UPnP AV devices that play video according to the UPnP protocol, UPnP AV control points (CP) in charge of controlling the UPnP AV devices, and video according to the DTVLink protocol. In a network including a DTVLink producer that provides a DTVLink producer, the information of the DTVLink producer is provided to the UPnP AV control point, and the video is requested by the UPnP AV control point based on the information of the provided DTVLink producer. And a bridge device unit capable of mutual recognition between devices of the UPnP standard and the DTVLink standard to be transmitted from the DTVLink producer to the UPnP AV device.

The bridge device unit receives a DTVLink controller and consumer for data transmission and reception with a DTVLink producer in the DTVLink network, and an UPnP control point action, and transmits a video from the DTVLink producer to the UPnP AV device. It is characterized by the configuration.

The DTVLink controller and consumer set up an IEEE 1394 based isochronous connection for transmitting commands and responses with the DTVLink producer, and an IEC61883 connection for receiving a video from the DTVLink producer.

The UPnP AV server is characterized by establishing an HTTP or RDP connection with the UPnP control point and the UPnP AV player.

In addition, the present invention is provided with a UPnP network having a control point (CP) and a UPnP AV player for playing a video according to the UPnP protocol, and a DTVLink producer for providing a video according to the DTVLink protocol to achieve the above object A control method of a network system including a DTVLink network and a service bridge unit for converting mutually recognized video playback related data transmitted between the UPnP network and the DTVLink network, wherein the control point is connected to the DTVLink producer from the service bridge unit. Selecting a media item; if the user selects one of the media items, the control point forwards an action for playing the item to the service bridge unit; playing the selected media item from the service bridge unit; Receiving the information, the DTVLink producer transmitting the media file to the service bridge unit, the service bridge unit transmitting the media file to the UPnP AV player, and the UPnP AV player plays the media file. Characterized in that configured to perform the steps.

Hereinafter, the present invention will be described in detail with reference to the drawings.

In describing the specific flow of the preferred embodiment of the present invention, a detailed description of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a configuration diagram of a remote UI service system for an embodiment of the present invention, as shown in FIG. 1, which includes a DTVLink consumer 111 and a DTVLink producer 112 to support DTVLink-based home networking. ), A UPnP network 130 that supports UPnP-based home networking, including a UPnP AV control point 131 and a UPnP AV player 132, and a user input from the control point 131 to the DTVLink producer ( And a DTVLink / UPnP AV service bridge 120 for transmitting the video file of the DTVLink producer 112 to the UPnP AV player 132 and converting it into a form that can be mutually recognized.

As shown in the structural diagram of FIG. 2, the DTVLink / UPnP AV service bridge 120 converts a user input transmitted from the UPnP AV control point 131 into the DTVLink AV / C format of the IEEE 1394 to produce a DTVLink producer 112. DTVLink controller and consumer 210 that transmits the data to the DTVLink controller and the consumer 210 and the user input from the UPnP AV control point 131 to the DTVLink controller and the consumer 210 and the corresponding data is acquired accordingly. It is configured as a UPnP AV server 220 that receives the (including the video) is converted to the UPnP standard and transmitted to the UPnP AV player 132.

In addition, the DTVLink / UPnP AV service bridge 120 integrates the DTVLink controller and consumer 210 with the UPnP AV server 220 to convert the UPnP commands for DTVLink connection setting and video playback into DTVLink AV / C commands. Set up an asynchronous connection with the management unit 211/221, the DTVLink producer 112, and establishes an HTTP connection with the UPnP AV player 132 to transfer the video data of the DTVLink producer 112 to the UPnP AV player 132. Video conversion / transmitter 212/222.

In addition, according to an embodiment of the present invention, the UPnP AV player 132 includes a connection management unit 231 and a video receiving / output unit 232 to correspond to the components of the DTVLink / UPnP service bridge 120, and the DTVLink producer ( 112, the connection management unit 112-1 and the video transmission unit 112-2 are provided.

Referring to the operation and effect of the embodiment of the present invention configured as described above are as follows.

First, when a user wants to establish a connection between the DTVLink network 110 and the UPnP AV network 130 to play multimedia such as a video and a broadcast, the UPnP AV control point 131 is connected to the DTVLink / UPnP AV service bridge 120. The media item corresponding to the DTVLink producer existing in the DTVLink network 110 is obtained and displayed on its UI.

At this time, when the user views the UI of the UPnP AV control point 131 and selects an item of the DTVLink producer 112, the UPnP AV control point 131 performs a DTVLink / UPnP action for establishing a connection with the DTVLink producer 112. It transmits to the UPnP AV server 220 of the UPnP AV service bridge 120.

The UPnP AV control point 131 notifies the UPnP AV player 132 of the connection with the DTVLink producer 120.

Accordingly, the DTVLink / UPnP AV service bridge 120 converts the UPnP action for establishing the connection at the UPnP AV control point 131 into the DTVLink connection establishment command based on the IEEE 1394 by the DTVLink controller and the consumer. The management unit 211/221 converts the UPnP action into a DTVLink connection setting command and transmits it to the connection management unit 112-1 of the DTVLink producer 112, receives the DTVLink response, and converts the UPnP action into a response to the UPnP action to convert the UPnP AV. Transfer to the control point (131).

Thereafter, when the UPnP AV control point 131 transmits a UPnP action for playing a video selected by the user to the UPnP AV server 210 of the DTVLink / UPnP AV service bridge 120, the DTVLink / UPnP AV service bridge 120 The DTVLink controller and consumer 220 establishes an IEEE 1394 based IEC61883 connection to the DTVLink producer 112.

At this time, the DTVLink controller and consumer 220 of the DTVLink / UPnP AV service bridge 120 requests the DTVLink producer 112 to play the corresponding video.

Accordingly, the DTVLink producer 112 transmits the corresponding video through the video conversion unit 112-2 through the video conversion / transmitter 222 of the DTVLink / UPnP AV service bridge 120 and the IEEE61894-based IEC61883 connection. The video converter / transmitter 222 converts the video into UPnP format and transmits the video to the video receiver / output unit 232 of the UPnP AV player 132 through an HTTP connection.

Accordingly, the UPnP AV player 132 plays the video and displays it on the screen.

On the other hand, while the preferred embodiment of the present invention has been described above, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below Could be.

As described in detail above, the present invention implements a service bridge so that a UPnP AV player can play a video in a DTVLink network, so that any UI can be played by remotely checking the UI of AV home appliances having only an IEEE 1394 interface in the UPnP network. Will be effective.

That is, the present invention implements a service bridge for mutually recognizing a UPnP AV player to play a video provided by a producer in a DTVLink network, so that the UPnP AV player can use HD-quality video of AV home appliances having a 1394 interface only. You can enjoy it.

Claims (7)

A plurality of UPnP AV devices for playing video according to the UPnP protocol; A UPnP AV control point (CP) for controlling the UPnP AV device; In a network comprising a DTVLink producer that provides video according to the DTVLink protocol, Provide UPnP AV control point information of the DTVLink producer and transmit a video from the DTVLink producer to the UPnP AV device at the request of the UPnP AV control point based on the information of the provided DTVLink producer. Heterogeneous network-based video service system comprising a bridge device for enabling mutual recognition between devices of the network. The method of claim 1, wherein the bridge device unit A DTVLink controller and a consumer for transmitting and receiving data with the DTVLink producer in the DTVLink network; And a UPnP AV server configured to receive a video from the DTVLink producer according to the action of the UPnP AV control point from the DTVLink controller and a consumer and transmit the video to the UPnP AV device. The method of claim 2, wherein the DTVLink controller and consumer IEEE 1394 based isochronous connection for command and response transmission with the DTVLink producer, When the playback action of the UPnP control point is received, the video service system based on heterogeneous network, characterized in that to establish the IEC61833 connection for receiving a video from the DTVLink producer. The method of claim 2, wherein the UPnP AV server Heterogeneous network-based video service system, characterized in that for establishing the HTTP connection with the UPnP AV device for video transmission. The method of claim 2, wherein the UPnP AV server Heterogeneous network-based video service system, characterized in that for establishing the RTP connection with the UPnP AV device for video transmission. The method of claim 1, wherein the service bridge unit Integrates DTVLink controllers and consumers with UPnP AV servers A connection manager for converting a UPnP command for DTVLink connection setting and video playback into a DTVLink AV / C command; Heterogeneous network-based video service system, characterized in that the video conversion / transmission unit for setting the asynchronous connection with the DTVLink producer and HTTP connection with the UPnP AV player to transfer the video data of the DTVLink producer to the UPnP AV player . A UPnP network having a control point (CP) and a UPnP AV player for playing video according to the UPnP protocol; A DTVLink network having a DTVLink producer for providing a video according to the DTVLink protocol; In the control method of the network system including a service bridge unit for converting the video playback-related data transmitted between the UPnP network and the DTVLink network to mutually recognize, The control point selecting a media item of the DTVLink producer from the service bridge unit; If the user selects one of the media items, the control point forwarding an action for playing the item to the service bridge unit; Transmitting, by the DTVLink producer, the media file to the service bridge unit when the selected media item reproduction setting is received from the service bridge unit; Transmitting, by the service bridge unit, the media file to the UPnP AV player; And the UPnP AV player is configured to play the media file.

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