KR20060105813A - System and method for remote user interface service in network using different protocol - Google Patents

Abstract

The present invention relates to a heterogeneous network-based remote UI service system and method, and in particular, an UPnP RemoteUI client in a DTVLink network in an environment in which DTVLink, which is an IEEE1394-based UI remoting technology, and RemoteUI network, which is an IP-based UPnP UI remoting technology, exist simultaneously. The purpose is to make the UI available. In order to achieve the above object, the present invention provides a DTVLink network 110 that supports DTVLink-based home networking, including a DTVLink consumer 111 and a DTVLink producer 112, a UPnP RemoteUI control point 131, and a RemoteUI client 132. UPnP network 130 that supports UPnP-based home networking, including a RemoteUI server 133, and user input from the control point 111 to the DTVLink producer 112 and the DTVLink producer 112. It comprises a DTVLink / XRT service bridge 120 for delivering the UI data to the RemoteUI client 132.

Description

Heterogeneous network-based remote Wi-Fi service system and method {SYSTEM AND METHOD FOR REMOTE USER INTERFACE SERVICE IN NETWORK USING DIFFERENT PROTOCOL}

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

FIG. 2 is a schematic diagram of a DTVLink / XRT service bridge in FIG. 1; FIG.

Explanation of symbols on the main parts of the drawings

110: DTVLink Network 112: DTVLink Producer

120: DTVLink / XRT service bridge 130: UPnP RemoteUI network

131: UPnP Control Point (CP) 132: RemoteUI client

133: RemoteUI Server 210: DTVLink Controller and Consumer

211: connection management unit 212: user input processing unit

213: bitmap transmission unit

The present invention relates to home networking, and in particular, to a heterogeneous network based remote UI service system and method.

Device Architecture 1.0은 분산 및 개방 네트워킹 구조를 기 반으로, IP 기술을 사용하여 홈 네트워크 내의 각 가전 제품들이 중앙 집중의 관리를 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 consumer appliance in the home network to be 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, UPnP RemoteUI is a UPnP standard related to remote UI from a server with a real UI to a Remote UI client.

The Remote UI Server provides directory services for the UIs on the network.

The control point (CP) obtains Uniform Resource Identifier (URI) information of a user interface (UI) from a RemoteUI server and provides it to a RemoteUI client.

The connection between the RemoteUI client and the server with the actual UI uses the out-of-band protocol (ex. XRT, VNC, etc.).

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 providing a UI, a consumer outputting the UI on the screen, and control between the producer and the consumer. It consists of the controller in charge. 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 in that communication between each other is impossible and multimedia data cannot be shared.

Accordingly, the present invention provides a heterogeneous network-based system in which a remote UI client can use a UI in a serial communication network in an environment in which a serial communication network and an IP-based remote UI network exist simultaneously. Its purpose is to provide a remote UI service system and method.

Particularly, an object of the present invention is to enable a UPnP RemoteUI client to use a UI in a DTVLink network in an environment in which DTVLink, which is an IEEE1394 based UI remoting technology, and a RemoteUI network, which is an IP based UPnP UI remoting technology, exist simultaneously.

The present invention is characterized by implementing a bridge for a multimedia service between the DTVLink and UPnP RemoteUI to achieve the above object.

That is, the present invention provides a plurality of UPnP devices for transmitting and receiving data according to the UPnP protocol, a UPnP control point (CP) for controlling the UPnP device, and DTVLink for transmitting and receiving data according to the DTVLink protocol. In a network including a producer, data of a standard capable of providing information of a DTVLink producer to the control point (CP) and mutually recognizing data transmitted between a UPnP device and a DTVLink producer at the request of the control point. It comprises a bridge device to convert to.

The bridge device comprises a DTVLink controller and consumer for converting producer data existing in the DTVLink network to the UPnP standard, and a UI server for converting UPnP-based user input into a format for delivering to the DTVLink producer. .

The present invention also provides a UPnP network having a control point (CP), a RemoteUI client and a RemoteUI server to transmit and receive data according to the UPnP protocol, and a DTVLink producer to transmit and receive data according to the DTVLink protocol. A control method of a network system including a DTVLink network and a service bridge for converting mutually recognized data transmitted between the UPnP network and the DTVLink network, wherein the control point obtains the URI of the service bridge from a RemoteUI server and uses the RemoteUI. Instructing the client to establish a connection to the second communication standard device, converting the connection establishment command from the RemoteUI client into a command of the second communication standard and transmitting the command to the DTVLink producer; DTVLink program Converting a response from a producer into a response of a first communication standard and transmitting the response to the RemoteUI client, a service bridge delivering user input from a control point or RemoteUI client to a DTVLink producer, and The UI of the DTVLink producer is configured to perform the steps of sequentially transmitting the DTVLink asynchronous connection and the TCP connection to the RemoteUI client.

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. UPnP network 130 supporting UPnP-based home networking, including UPnP RemoteUI control point 131, RemoteUI client 132, and RemoteUI server 133, and user input from the control point 131. It is configured to include a DTVLink / XRT service bridge 120 to deliver the DTVLink producer 112 and the UI data of the DTVLink producer 112 to the RemoteUI client 132.

As shown in the structural diagram of FIG. 2, the DTVLink / XRT service bridge 120 transmits a user input to the DTVLink producer 112 and acquires data according to the DTVLink controller and consumer 210, and a RemoteUI client 132. XRT server 220 for transmitting the user input from the DTVLink controller and the consumer 210, and receives the data according to the DTVLink controller and the consumer 210 to the RemoteUI client 132.

In addition, the DTVLink / XRT service bridge 120 integrates the DTVLink controller and consumer 210 with the XRT server 220, and the connection management unit 211/221 converts XRT commands for DTVLink connection settings into DTVLink AV / C commands. And asynchronous connection with the DTVLink producer 112, the user input processing unit 212/222 for converting the XRT command according to the user input into the DTVLink AV / C command, and the TCP connection with the RemoteUI client 132 The bitmap transmitter 213/223 for transmitting the UI bitmap data of the DTVLink producer 112 to the RemoteUI client 132 is configured.

That is, the DTVLink / XRT service bridge 120 is configured to perform conversion between DTVLink based data and XRT based data.

In addition, the embodiment of the present invention includes a connection manager 231, a user input processor 232, and a bitmap transmitter 233 in the RemoteUI client 132 to correspond to the components of the DTVLink / XRT service bridge 120. The DTVLink producer 112 includes a connection management unit 112-1, a user input processing unit 112-2, and a bitmap transmission unit 112-3.

In addition, bitmap and user input transmission between the UPnP RemoteUI client 132 and the XRT server 220 is performed using an out-of-band protocol.

The out-of-band protocol is a general-purpose structure that can accommodate all of various protocols such as XRT, VNC, and RDP. However, the out-of-band protocol is assumed to be XRT.

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 in the UPnP RemoteUI network 130 to acquire and play multimedia such as a video and a broadcast from the DTVLink network 110, the user uses the UPnP control point 131. To operate a specific key.

At this time, the UPnP control point 131 obtains the URI information of the XRT server 220 having the actual UI from the UPnP RemoteUI server 133 and then uses the UPnP action (Connect action) to the RemoteUI client 132 to the DTVLink network 110. Command to set the connection to).

Accordingly, the RemoteUI client 132 establishes a connection to the XRT server 220 which is a server having a real UI by using a request command since the connection setup command corresponding to the out-of-band protocol, that is, XRT is applied.

At this time, the DTVLink / XRT service bridge 120 performs a conversion between the XRT connection setup command (Request command) and the DTVLink connection setup command (Allocate_Attach Command) transmitted from the connection management unit 231 of the RemoteUI client 132. 211 converts an XRT-based request command into a DTVLink AV / C command and delivers it to the connection management unit 112-1 of the DTVLink producer 112, receives a DTVLink response, and converts it into an XRT response to the RemoteUI client 132. To pass).

Subsequently, when the user wants to acquire and play arbitrary multimedia, if the user input is input to the UI of the UPnP control point 131, the RemoteUI client 132 inputs the user input by the user input processor 232 of the out-of-band protocol. Encoded by the XRT-based KEY_PRESS command, which is a user input command, and then transmitted to the XRT server 220 of the DTVLink / XRT service bridge 120.

In this case, the DTVLink / XRT service bridge 120 converts the XRT-based KEY_PRESS command into a PASS THROUGH AV / C command, which is a user input command of DTVLink, by the user input processor 212. -2) to send.

Accordingly, the DTVLink producer 112 delivers the multimedia stream to the DTVLink / XRT service bridge 120 to the RemoteUI client 132, which is made by the bitmap transmitter 213. same.

When the DTVLink producer 112 establishes a DTVLink Asynchronous connection, that is, an asynchronous connection for UI transmission, the bitmap transmitter 112-3 sends the UI bitmap according to the EIA-799 standard, and then the DTVLink controller of the DTVLink / XRT service bridge 120. And to the consumer 210.

In this case, the DTVLink / XRT service bridge 120 converts the UI bitmap of the EIA-799 standard into the XRT bitmap format of the UPnP RemoteUI by the bitmap transmitter 213 to convert the bitmap of the RemoteUI client 132 through a TCP connection. The transmission unit 233 transmits.

Accordingly, the RemoteUI client 132 displays the UI transmitted by the DTVLink producer 112 so that the user can select a desired menu.

That is, the DTVLink / XRT service bridge 120 proposed in the present invention is located at the boundary between the DTVLink producer 112 in the DTVLink network 110 and the UPnP RemoteUI client 132 in the UPnP RemoteUI network 130. By transmitting the user input from the UPnP RemoteUI client 132 or UPnP control point 131 to the DTVLink producer 112, and delivers the UI of the DTVLink producer 112 to the UPnP RemoteUI client 132 In the UPnP network 130, the DTVLink device existing in the DTVLink network 110 may be remotely identified and controlled.

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 UPnP RemoteUI clients can use the UI in the DTVLink network, so that the UI of AV home appliances having only an IEEE 1394 interface can be remotely checked in the UPnP network to control any device. Will be effective.

Claims (10)

A first communication standard device for transmitting and receiving data according to a first communication standard, In the network comprising a second communication standard device for transmitting and receiving data in accordance with a second communication standard, Assuming that the control point CP is mounted on the device of the first communication standard, the device information of the second communication standard is provided to the control point CP and the first communication standard device is requested by the control point. And a bridge device means for converting data transmitted between the second communication standard device into data of a mutually recognizable standard. The device of claim 1, wherein the bridge device means A controller and a consumer that is a producer in the second communication standard network that transmits a user command of the first communication standard network and receives a response thereof; A heterogeneous network-based remote UI service system comprising a UI server for transmitting UPnP-based user input to a controller and a consumer, and receiving a response from the controller and the consumer to a first communication standard network. . The method of claim 2, wherein the UI server A heterogeneous network-based remote UI service system configured to communicate with a first communication standard network using an out-of-band protocol. The heterogeneous network-based remote UI service system of claim 3, wherein the out-of-band protocol applies one of various protocols such as XRT, VNC, and RDP. The heterogeneous network-based remote UI service system according to claim 1 or 2, wherein the first communication standard is UPnP RemoteUI and the second communication standard is DTVLink. The heterogeneous network-based remote UI service system of claim 1, wherein the first communication standard device is configured as a UPnP RemoteUI client, and the second communication standard device is configured as a DTVLink producer. The method of claim 6, wherein the UPnP RemoteUI client Heterogeneous network-based remote UI service system, characterized in that the control point is configured to initiate a connection setup by the UPnP action including the URI of the actual UI server obtained from the UPnP RemoteUI server in the first communication standard network. The method of claim 1 wherein the service bridge A connection management unit that converts UPnP commands for DTVLink connection settings into DTVLink AV / C commands, A user input processing unit for converting UPnP commands according to user input into DTVLink AV / C commands, Including a bitmap transmission unit for establishing an asynchronous connection with the DTVLink producer, and establishes a TCP connection with the RemoteUI client to deliver the UI bitmap data of the DTVLink producer to the RemoteUI client. A heterogeneous network-based remote UI service system, characterized in that the first communication standard UPnP RemoteUI and the second communication standard DTVLink are configured to be supported at the same time. A device of a first communication standard having a control point (CP), a RemoteUI client and a RemoteUI server to transmit and receive data in accordance with the first communication standard, A device of a second communication standard having a DTVLink producer for transmitting and receiving data in accordance with a second communication standard, A control method of a network system including a service bridge for converting data transmitted between devices of the first and second communication standards to mutually recognize each other. The control point obtaining a URI of the service bridge from a RemoteUI server and instructing a RemoteUI client to connect to the actual UI server of the service bridge; Converting, by the service bridge, a connection establishment command from a RemoteUI client into a DTVLink command and forwarding the same to a DTVLink producer; The service bridge is configured to perform the step of establishing a connection between the RemoteUI client and the DTVLink producer, heterogeneous network-based remote UI service method. The method of claim 9, The service bridge passing user input from the control point or RemoteUI client to the DTVLink producer, And transmitting the UI of the DTVLink producer for the user input to a RemoteUI client through a DTVLink asynchronous connection and a TCP connection in sequence.

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