KR100764871B1 - Ieee1394 interface unit for construction of home backbone network - Google Patents

Abstract

The present invention relates to an IEEE1394 matching device for home backbone network configuration, comprising a physical layer protocol (PHY) unit for electrical and mechanical connection between an IEEE1394 device and an IEEE1394 cable, and an IEEE1394 frame for data transmission and reception between IEEE1394 devices. It consists of a link unit that performs functions such as definition, address system, data error check, etc., which is installed in the home gateway system to form a backbone network for transmitting and receiving data at high speed between IEEE1394 devices connected to the home network. As household appliances that can use networks such as A / V devices or information appliances are increasing, household appliances of various companies can be bundled together through home gateway devices to enable network configuration between these devices.

IEEE1394, Home Network, Home Gateway, Home Network

Description

IEEE1394 matching device for home backbone network construction {IEEE1394 INTERFACE UNIT FOR CONSTRUCTION OF HOME BACKBONE NETWORK}

1 is a configuration diagram of an IEEE1394 matching device mounted on a home gateway according to an embodiment of the present invention;

2 is a block diagram of a UTPCat5e / STP IEEE1394 converter according to an embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

100: IEEE1394 matching device 101: link unit

102: PHY unit 103: transceiver

104: terminator 105: RJ-45 connector

200: UTPCat5e / STP IEEE1394 Inverter 201: STP Connector

202: PHY unit 203: transceiver

204: terminator 205: connector

The present invention relates to a device that enables data transmission and reception between IEEE1394 devices through a home gateway. More particularly, the present invention relates to a home gateway between various home appliances that can use a network by applying IEEE1394 interface technology to a home gateway. The present invention relates to an IEEE1394 matching device for constructing a backbone network in a home that enables a home network to be constructed.

IEEE1394 technology is a core interface technology that enables data transmission and reception in real time by interconnecting digital A / V devices and electrical devices requiring high data rates.

IEEE1394 not only guarantees QoS such as bandwidth and transmission rate for applications requiring real-time transmission such as multimedia data, but also has asynchronous transmission method to select transmission mode according to the characteristics of data. Have. In addition, the adoption of IP over IEEE1394 also enables data transmission between IEEE1394 devices and IP devices.In the case of the non-IP terminal, it is easy to configure and automatically assigns an address immediately upon connection, thereby providing Plug-and Play and It is easy to install by user because it can provide hot plug function. In the case of IEEE1394b, data of up to 3.2Gbps can be transmitted using an optical cable and a connector capable of gigabit transmission.

However, IEEE1394 has a disadvantage in that the transmission distance is limited despite the high data rate. For this reason, it was limited only to applications such as home A / V and PC clustering.

In order to solve this problem, in the conventional connection method between agent nodes connected to an IEEE1394 network including one or more IEEE1394 nodes, the initialization information including the number of IEEE1394 nodes connected to the agent node and the self-configuration of the IEEE1394 nodes are provided. Generating a packet data format including the IDs, and transmitting the packet data by the agent node which has generated the packet data format to other agent nodes, for the node of the IEEE 1394 bus. Or, a technique has been proposed to enable connection between remotely located agent nodes without software modification.

The solution of this technique is to use a common receiver, which is a filtering means for selecting a wired broadcast signal and a VOD signal in one receiver so that both the wired broadcast and VOD reception can be used. A tuner means for cable broadcasting tuning, priority broadcast signal processing means for receiving the tuned signal and processing and demodulating the video signal and the audio signal, and means for storing the filtered VOD signal as compressed video data and audio data, and A separate processing unit for recovering in real time to display in a TV receiver, and switching means for selectively switching the signal according to the user's selection from among the signals input from the cable broadcasting signal processing means and the VOD signal processing means, respectively. Means for presenting a signal selected by the switching means to the TV receiver, and It is composed of one or more central control devices for controlling the above functions.

It is possible to connect agent nodes located at a remote location without any hardware or software modification to the nodes of the IEEE 1394 bus.

However, in the existing technology, UTP Cat5e cable is applied to IEEE1394 matching device, or UTP Cat5e / STP IEEE1394 converter is adopted to connect IEEE1394 devices through home gateway to solve the limitation of transmission distance. In order to implement the IEEE1394 backbone network by constructing a network between them, there is a disadvantage that the existing packet data format and transmission system must be changed.

Accordingly, the present invention has been made to solve the above problems of the prior art, an object of the present invention is to provide an IEEE1394 matching function that can use the UTP Cat5e cable in the home gateway and thereby to solve the limitation on the transmission distance The present invention provides an IEEE1394 matching device for building a backbone network in which an IEEE1394 device is connected to a home gateway using a UTPCat5e / STP IEEE1394 converter to form a backbone network by configuring a network between the IEEE1394 devices in the home.

IEEE1394 matching device for the home backbone network configuration of the present invention for achieving the above object, performs a function such as address system, data error check, etc. to transmit and receive data, and communicate with the Physical Layer Protocol (PHY) layer A link unit for packetizing data decoded by the PHY layer; A PHY unit for transmitting and receiving digital logic and data necessary to perform at least one physical layer in an IEEE1394 network, and performing a role of a repeater in which all devices sequentially execute a bus and provide the same function to each port; A transceiver for converting an IEEE1394 STP interface into a home network UTP interface; Terminator for reducing noise transmitted from the home network; And it characterized in that it comprises an RJ-45 connector that can be connected to the home network.

In this case, a UTP Cat5e cable may be applied to the IEEE1394 matching device, and the UTPCat5e / STP IEEE1394 converter applied to the IEEE1394 matching device may include an STP connector capable of connecting the IEEE1394 device; PHY unit for transmitting and receiving data and repeater role; A transceiver for converting an IEEE1394 STP interface into a home network UTP interface; Terminator for reducing noise transmitted from the home network; And it is characterized in that it comprises an RJ-45 connector that can be connected to the home network.

Hereinafter, an IEEE1394 matching device for premises backbone network configuration of the present invention will be described in detail with reference to the accompanying drawings.

The following description and the annexed drawings are intended to assist the overall understanding of the present invention, and detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a block diagram of an IEEE 1394 matching device mounted on a home gateway according to an embodiment of the present invention. As shown in FIG. 1, the IEEE 1394 matching device 100 includes a link unit 101, and includes a physical layer protocol (PHY) unit 102, a transceiver 103, a termination unit 104, and an RJ-45 connector ( 105).

The link unit 101 performs functions such as an address system and a data error check to transmit and receive data, communicates with the PHY layer, and takes charge of packetization of data decoded by the PHY layer.

The PHY unit 102 transmits and receives digital logic and data necessary to perform one (or more) physical layers in an IEEE1394 network, and all devices sequentially execute a bus and provide the same function to each port. It acts as a repeater.

The transceiver 103 is responsible for converting the IEEE1394 STP interface into the home network UTP interface.

The terminator 104 functions to reduce noise transmitted from the home network.

The RJ-45 connector 105 provides a function to connect to the home network.

Looking at the operation of the IEEE 1394 matching device mounted on the home gateway configured as described above, the IEEE 1394 data input through the UTP cable, which is input through the RJ-45 connector 105, the noise is removed through the terminal 104 Then, it is transmitted to the PHY unit 102 via the transceiver 103. Thereafter, after decoding by the PHY unit 102, the decoded data is packetized by the link unit 101, and after passing through an address system and a data error checking process, the data is transmitted to the processor unit of the home gateway.

2 is a block diagram of a UTPCat5e / STP IEEE1394 converter according to an embodiment of the present invention. As shown in FIG. 2, the UTPCat5e / STP IEEE1394 converter 200 includes an STP connector 201 capable of connecting IEEE1394 equipment, and includes a physical layer protocol (PHY) unit 202, a transceiver 203, and a termination terminal. Device 204, RJ-45 connector 205.

The STP connector 201 provides a function for connecting IEEE1394 equipment.

The PHY unit 202 plays a role of transmitting and receiving data and repeater.

The transceiver 203 is responsible for converting the IEEE1394 STP interface to the home network UTP interface.

The terminator 204 reduces the noise transmitted from the home network.

The RJ-45 connector 205 provides a function to connect to the home network.

Looking at the operation of the UTPCat5e / STP IEEE1394 converter configured as described above, the IEEE1394 data entered through the STP connector 201 connected to the IEEE1394 device is repeated in the PHY unit 202, and then transmitted from the transceiver 203 to the UTP cable It can be converted and transmitted through the UTP cable to the RJ-45 connector 205 connected to the home gateway via the terminator 204.

As described above, the present invention provides a connection method between agent nodes connected to an IEEE1394 network including one or more IEEE1394 nodes, the initialization information including the number of IEEE1394 nodes connected to an agent node and self-IDs of the IEEE1394 nodes. Generating a packet data format including the packet data format; and transmitting the packet data of the format to other agent nodes by the agent node that has generated the packet data format.

Accordingly, agent nodes connected to an IEEE1394 network including one or more IEEE1394 nodes, when a reset occurs on the IEEE1394 bus, the corresponding agent node notifies other agent nodes and gives the IEEE-1394 node's self-ID priority to the agent nodes. It transmits to other agent nodes according to the rank, and configures the IEEE1394 local bus using the received information to connect the agent nodes, so that agent nodes located at a long distance without any hardware or software modification to the nodes of the IEEE1394 bus can be connected. Connection is possible.

Although the present invention has been described in more detail with reference to some embodiments, the present invention is not necessarily limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention.

As described above, the IEEE1394 matching device for the home backbone network configuration according to the present invention can not only apply a UTP Cat5e cable to the IEEE1394 matching device, but also additionally adopts a UTP Cat5e / STP IEEE1394 converter. By solving the limitation of transmission distance, which is the biggest drawback of IEEE1394, the IEEE1394 devices can be interconnected through the home gateway, and the IEEE1394 backbone network can be implemented by configuring a network between IEEE1394 devices in the home.

Claims (4)

An IEEE1394 matching device mounted on a home gateway to connect IEEE1394 devices with a home gateway to enable a network between the IEEE1394 devices in a home. An RJ-45 connector connected to the IEEE 1394 device by a home network; An end device for reducing noise of data transmitted from the home network through the RJ-45 connector; A transceiver for converting data transmitted from the home network transmitted through the termination device into an interface suitable for the home gateway; It is connected to the at least one transceiver, performs the role of at least one physical layer in the network between the IEEE1394 devices, the IEEE1394 device acts as a repeater for sequentially executing a bus and providing the same function to each port, A PHY unit for transmitting and receiving digital logic and data, as well as decoding IEEE1394 data transmitted through the transceiver; And a link unit connected to at least one PHY unit to packetize the decoded IEEE1394 data and perform an address system and a data error check function to transmit and receive the IEEE1394 data. IEEE1394 matching device. The IEEE 1394 matching device of claim 1, wherein the home network connected to the RJ-45 connector is formed by a UTP Cat 5e cable. The IEEE1394 matching device of claim 2, wherein the UTP Cat5e cable is connected to an UTPCat5e / STP IEEE1394 converter connected to the IEEE1394 device to convert an STP interface into a UTP interface. The apparatus of claim 3, wherein the UTPCat5e / STP IEEE1394 converter An STP connector connected to the IEEE1394 device; A PHY unit for transmitting and receiving IEEE1394 data transmitted through the STP connector and performing a repeating role; A transceiver for converting the STP interface by the IEEE1394 data into a home network UTP interface; A terminator connected to the transceiver and reducing noise transmitted through the home network; And an RJ-45 connector connected to the home network and transmitting the converted IEEE1394 data to the home network to the home network.

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