KR20040088688A - Home Network Distributor - Google Patents

Abstract

PURPOSE: An integrated premise communication network distribution device is provided to distribute telephone lines coming in premises through one communication network distribution device, and to simultaneously process a premise home networking and an Internet access sharing, thereby integrating separated premise network construction equipments. CONSTITUTION: An Internet sharing block(41) is driven by a LINUX-based operating system, assigns different private IPs to plural network access apparatuses(10) by using an NAT(Network Address Translation) function, and accesses the Internet with one approved IP. An Ethernet switching block(42) switches a data transceiving path between the plural network access apparatuses(10), and comprises a physical transceiver connected to an MII(Media Independent Interface) to communicate with the Internet sharing block(41). A telephone line distribution block(43) receives telephone lines coming in premises and distributes the received telephone lines to plural telephones(20).

Description

Integrated home network distribution device {Home Network Distributor}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a network distribution device installed in an apartment, a house, and the like, and more particularly, to an integrated home network distribution device that enables not only distribution of general telephone lines but also home networking and sharing of Internet access in a home.

With the establishment of the Internet based on the TCP / IP (Transfort Control Protocol / Internet Protocol), various communication networks are being integrated around the Internet, and the number of high-speed Internet subscribers is rapidly increasing. As a result, a large number of ADSL modems and cable modems are installed in apartments and houses to access high-speed Internet. Recently, homes with two or more computers are increasing, and home appliances, such as various home appliances having network access functions, are being released one after another.

However, a network distribution device installed in an apartment or the like distributes only incoming telephone lines to a predetermined area such as a living room or a room, so that a plurality of computers used in a home can be connected to a local area network (LAN) or a single internet line. If you want to share to multiple computers, you will have to install a separate switching hub or router. In addition, as described above, in the case of building home networking using a separate switching hub or an internet router, the switching hub or the internet router is exposed to a living room and the like.

Accordingly, the present invention has been made in view of the above circumstances, and distributes incoming telephone lines to each area of the home, and allows a single Internet line to be shared by a plurality of network access devices installed in the home, and a home between the home network access devices. It is an object of the present invention to provide an integrated home network distribution device that enables networking.

1 is a conceptual diagram for explaining the basic concept of the integrated domestic network distribution apparatus according to the present invention.

FIG. 2 is a block diagram showing an internal configuration of the communication network distribution device shown in FIG.

Figure 3 is a front view showing the appearance of the case of the network distribution device shown in FIG.

*** Explanation of symbols for the main parts of the drawing ***

10 (10 ₁ ~ 10 _m ): network connection device, 20 (20 ₁ ~ 20 _n ): telephone,

30: modem, 40: network distribution device,

41: Internet sharing block, 42: Ethernet switching block,

43: telephone line distribution block, 411: WAN port,

412: WAN controller, 413: LAN controller,

414: memory unit, 415: central processing unit,

421 (421 ₁ to 421 _a ): LAN port, 422: network converter,

423: transceiver, 424: switch controller,

425: EEPROM, 426: display unit,

431, 432 (432 ₁ to 432 _b ): first and second telephone ports, and 433: xDSL modem ports.

Integrated home network distribution device according to the present invention for achieving the above object is a network distribution device connected between the Internet connection modem and a plurality of network access devices and telephones installed in the home, is driven by a Linux-based operating system and network address An Internet sharing block for assigning different private IPs to the network access devices using a conversion and processing to be connected to one public IP through the Internet, and switching data transmission / reception paths between the network access devices and the Internet of the network access devices. Ethernet switching block having a physical transceiver connected to the MII interface so as to communicate with the Internet sharing block when connected, and a telephone line distribution block that receives at least one telephone line entering the premises and distributes it to each line to which the telephone is connected. Contains Characterized in that comprised over.

Therefore, according to the above configuration, it is possible to provide an integrated indoor telecommunication network distribution device capable of distributing a general telephone line as well as sharing home networking and internet access in a home.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a conceptual diagram for explaining the basic concept of the integrated domestic network distribution apparatus according to the present invention.

In FIG. 1, reference numeral 10 (10 ₁ to 10 _m ) is a number of network connection devices equipped with network connection means for connecting to the Internet 1 or a LAN (Local Area Network), which is, for example, a LAN card and various communication protocol programs. It is composed of a general-purpose computer, a notebook computer, a network printer, an Internet TV, and the like. In FIG. 1, reference numeral 20 (20 ₁ to 20 _n ) is a general telephone, and 30 is a modem provided through an Internet service provider (ISP), which uses, for example, an xDSL modem or a cable modem.

In FIG. 1, reference numeral 40 denotes a communication connection between a plurality of network connection devices 10, a plurality of telephones 20, and a modem 30 to process a plurality of network connection devices 10 to be connected to each other by a LAN. Network Address Translation (NAT) performs network address translation (NAT) so that a network connection device 10 of a network can share one Internet line, and a plurality of telephone lines that are introduced into a home through a public telephone network (PSTN) 2 It is a network distribution device for distributing to the telephone set 20.

According to the above-mentioned communication network distribution device 40, the telephone line that enters the premises is distributed to each zone where the telephones 20 such as the living room and the room are arranged, and a plurality of network connection devices 10 are connected to the LAN for network connection. File sharing and printer sharing are possible between the devices 10, and a plurality of network connection devices 10 can access a wide area network (WAN), which is an external network such as the Internet 1, through one public IP (Internet Protocol). It becomes possible.

FIG. 2 is a block diagram illustrating an internal configuration of the network distribution device 40 shown in FIG. 1. In FIG. 2, reference numeral 41 is a Linux-based operating system and uses network address translation (NAT). Is a Internet sharing block for assigning different private IPs to a plurality of network connection devices 10 and processing them to be connected to a single public IP through a WAN such as the Internet 1, and 42 is a plurality of network connection devices 10. An Ethernet switching block having a physical transceiver connected to a media independent interface (MII) interface to switch data transmission / reception paths and communicate with the Internet sharing block 41 when the network connection device 10 accesses the Internet 1; 43 is a telephone line distribution block that accepts telephone lines entering the home and distributes them to the plurality of telephones 20.

Hereinafter, the Internet sharing block 41, the Ethernet switching block 42, and the telephone line distribution block 43 will be described in more detail with reference to FIG. 2.

First, the Internet sharing block 41 shown in FIG. 2 includes a WAN port 411 connected to the Internet 1 through the modem 30 of FIG. 1, and between the WAN port 411 and the central processing unit 415. A WAN controller 412 which is connected to the WAN controller and performs flow control for the WAN connection and the Ethernet frame, and is connected between the central processing unit 415 and the Ethernet switching block 42 and performs flow control for the LAN connection and the Ethernet frame. A LAN controller 413 is provided.

In the present embodiment, the WAN port 411 uses a well-known RJ45 connector, the WAN controller 412 and the LAN controller 413 use an Ethernet controller of 10BASE-T or 100BASE-T specification, and the WAN controller. 412 and LAN controller 413 and central processing unit 415 are connected via an ISA or PCI bus.

In FIG. 2, the Internet sharing block 41 is a Linux kernel, which is an operating system of the central processing unit 415, various device drivers such as an Ethernet driver, and an IP allocation and IP for accessing the Internet 1. The memory unit 414 stores various application programs that handle sharing. In the present embodiment, the application program, for example, the DHCP (Dynamic Host Configuration Protocol) daemon (Daemon) for managing the IP allocation and network parameter settings for a plurality of network connection device 10, PPPD daemon and ADSL connection PPPoE daemon, and IP table tool for performing network address translation (NAT) for IP sharing.

In FIG. 2, the memory unit 414 stores a flash memory 414a in which the Linux kernel, a device driver, and an application program are stored, and data stored in the flash memory 414a when a device is driven, and various temporary data are stored. The RAM 414b which is temporarily stored is provided. In this embodiment, the Linux kernel, for example, it is preferable to use version 2.4.1 or higher.

In FIG. 2, the central processing unit 415 performs initial driving processing of the Internet sharing block 41 and network parameter setting and IP of a plurality of network access devices 10 based on an operation program stored in the memory unit 414. By performing assignment and performing network address translation on the IP assigned to each network access device 10, a plurality of network access devices 10 are controlled to be connected to the Internet 1 with one public IP. .

In the present exemplary embodiment, the central processing unit 415 may use, for example, an ARM7 series RISC processor having a well-known JTAG (Joint Test Access Group) and a memory controller (not shown). In this case, a boot loader for driving Linux may be written in the flash memory 414a using the JTAG, and porting of Linux may be facilitated.

Meanwhile, the Ethernet switching block 42 illustrated in FIG. 2 includes a plurality of LAN ports 421: 421 ₁ to 421 _a connected to a plurality of network connection devices 10 through a LAN cable, and the Internet sharing block ( And a network transceiver 422 for connecting to the network 41 and a physical transceiver 423 for transmitting and receiving data to and from the Internet sharing block 41 through the network converter 422.

In FIG. 2, the Ethernet switching block 42 includes an MII interface (not shown) for switching a transmission path of data input / output through a plurality of LAN ports 421 and connecting the transceiver 423 therein. EEPROM 426 in which a switch controller 424, a predetermined operation program for driving the switch controller 424 is stored, and a predetermined control applied from the switch controller 424 during data input / output through the LAN port 421. The display unit 426 is configured to display an operation state of each LAN port 421 in accordance with a signal.

In FIG. 2, the switch controller 424 distinguishes data transmitted to a LAN or WAN, respectively, and transmits data transmitted to the LAN to the LAN port 421 to which the corresponding network connection device 10 is connected, and transmitted to the WAN. Data is sent to the Internet sharing block 10 through the transceiver 423.

On the other hand, the telephone line distribution block 43 shown in FIG. 2 has at least one telephone line directly introduced into the home via the public telephone network 2 and the intermediate wiring board MDF / main wiring board IDF (not shown). A first telephone port 431 to be connected, a plurality of second telephone ports 432: 432 ₁ to 432 _b connected to the first telephone port 431 in common, and to which a plurality of home telephones 20 are connected; For example, when using the xDSL modem, the modem 30 of FIG. 1 is connected to the LINE-IN terminal (not shown) of the modem 30 to input the xDSL signal transmitted through the telephone line to the modem 30. XDSL modem port 433 is configured.

In the present embodiment, the first and second telephone ports 431 and 432 and the xDSL modem port 433 are configured with, for example, well-known RJ45 connectors, and the first telephone port 431 connects up to four telephone lines. It receives and distributes it to eight second telephone ports 432.

Hereinafter, the operation of the present invention having the above configuration will be described.

First, Figure 3 is a front view showing the appearance of the case of the network distribution device 40 shown in Figure 2, the same reference numerals for the same configuration as the configuration shown in Figure 2 in Figure 3 will be omitted detailed description. .

The user connects the LINE-OUT terminal of the modem 30, such as an xDSL modem or a cable modem, to the WAN port 411 of FIG. 3, and connects a plurality of network connection devices 10 such as a computer and a network printer to the plurality of LAN ports 421. ). In addition, a telephone line that enters the home through an intermediate wiring board (MDF) / main wiring board (IDF) (not shown) is connected to the first telephone port 431, and the second telephone port 432 is provided with a telephone (20) installed in the home. ) Will be connected. In addition, when the modem 30 used by the user is an xDSL modem, the line-IN terminal of the modem 30 and the xDSL modem port 433 of FIG. 3 are connected by a telephone line.

Then, when the device is turned on, the central processing unit 415 and the switch controller 424 of FIG. 2 perform an initial boot operation according to a predetermined routine and wait for data input / output through the WAN port 411 or the LAN port 421. Done.

First, home networking between a plurality of network connection devices 10 will be described. For example, when data is transferred from the network connection device 10 ₁ to another network connection device 10 ₂ , the transmission data is switched through the LAN port 421 ₁ . Is applied to the controller 424. In addition, the switch controller 424 reads the header information of the transmission data, checks whether the data is transmitted to the LAN or the data to the WAN, and switches the transmission path to the corresponding LAN port 421 ₂ when the data is transmitted to the LAN. Done. Therefore, according to the above operation, a plurality of network connection devices 10 connected to the present network distribution apparatus 40 can share files and share printers.

And the process of connecting the Internet (1) through the IP sharing of the plurality of network connection devices 10, the central processing unit 415 of Figure 2 is any network connection device 10 connected to the LAN through the Ethernet switching block 42 ₁ ) When a request for connection to the Internet (1) is received from the network, a network address translation for allocating a first private IP to the network connection device 10 ₁ using a DHCP daemon, and then converting the first private IP to a public IP ( NAT). Therefore, the network connection device 10 ₁ is connected to the Internet ₁ , which is an external network, using a public IP instead of a private IP.

The network connection device (10 _1), other network-connected device (10 ₂₎ from the Internet (1) connected to a central processing unit 415 of the second case there is a request in the LAN in the connection to the Internet (1) state DHCP daemon After assigning the second private IP to the network connection device (10 ₂ ) by using, performs a network address translation (NAT) to convert the second private IP to the same public IP as the network connection device (10 ₂ ) The internet 1 is connected. Therefore, the network distribution device 40 can connect a plurality of network connection devices 10 to the Internet 1 using one public IP.

In addition, in the general telephone line distribution, since the first and second telephone ports 431 and 432 of FIG. 2 are connected in common, the plurality of telephones 20 receive telephone lines through the second telephone port 432. It becomes possible.

As described above, according to the present invention, as well as distributing the telephone line introduced into the premises through one communication network distribution device as well as simultaneous home premises networking and Internet access sharing to the conventional home gateway (Internet router) and home networking equipment It will be possible to integrate separate home network building equipment.

In addition, according to the present invention, it is possible to easily operate the stability and management of home networking because the home network construction equipment is operated in an integrated manner.

Claims (6)

In the network distribution device connected between the Internet connection modem installed in the home, and a plurality of network connection devices and telephones, Internet sharing block, which runs on Linux-based operating system and uses network address translation to assign different private IPs to the network access devices and to be connected to one public IP through the Internet, An Ethernet switching block having a physical transceiver connected to an MII interface to switch data transmission / reception paths between the network connection devices and to communicate with the Internet sharing block when the network connection device is connected to the Internet; And a telephone line distribution block for accommodating at least one telephone line entering the premises and distributing it to each line to which the telephone is connected. The method of claim 1, The internet sharing block WAN port connected to the Internet via the modem, A WAN controller connected to the WAN port to perform flow control for WAN access and Ethernet frames; A LAN controller connected to the Ethernet switching block to perform LAN control and flow control for an Ethernet frame; A memory unit that stores the Linux kernel, the basic operating system of the device, various device drivers including Ethernet drivers, and various application programs that handle IP allocation and IP sharing for Internet access, Control of initial operation of the device, setting of network parameters, IP allocation and network address translation for the network access device based on an operation program connected to the WAN controller, the LAN controller and the memory unit, respectively, and stored in the memory unit. Integrated communication network distribution device, characterized in that configured to include a central processing unit. The method of claim 1, The Ethernet switching block A plurality of LAN ports communicating with the network connection device through a LAN cable; A network converter for connecting with the internet sharing block, A physical transceiver that transmits / receives data with the Internet shared block through the network converter; A switch controller for switching a transmission path of data input and output through the LAN port and having the MII interface therein; And an EEPROM having a predetermined operation program stored therein for driving the switch controller. The method of claim 3, wherein The switch controller distinguishes data transmitted to a LAN or WAN, respectively, and transmits data transmitted to a LAN to a corresponding LAN port, and controls data transmitted to a WAN to be transmitted to the Internet sharing block through the transceiver. Integrated network distribution device. The method of claim 1, The telephone line distribution block may include: a first telephone port to which at least one telephone line, which enters a premises through a public telephone network, is directly connected; A plurality of second telephone ports connected in common with the first telephone port and to which the telephone is connected; And an xDSL modem port connected to the LINE-IN terminal of the modem when the modem is an xDSL modem. The method of claim 5, wherein And said first and second telephone ports and said xDSL modem port are RJ45 connectors.