KR20020022203A - Multi lan card - Google Patents

Abstract

PURPOSE: A multi LAN card is provided to simultaneously connect inter-different networks such as an external network and an internal network and use the inter-different networks. CONSTITUTION: The first to third connection units(1-3) connects to inter-different network lines. The first and second switching units(4,5) perform a switching operation by a control signal for connecting one among the first to third connection units(1-3) to a signal converting unit(6). The signal converting unit(6) converts data inputted through a network line connected by the switching operation of the first and second switching units(4,5). A LAN control unit(7) matches the signal inputted through the signal converting unit(6) with a LAN protocol between internal systems and performs a data intercommunication. The first to third connection units(9-11) connect to power lines of a hard disk. The fourth connection unit(12) connects to a power line of a motherboard. The third and fourth switching units(13,14) perform a switching operation by the control signal for connecting one among the first to third connection units(9-11) to the fourth connection unit(12) and operating the hard disk connected to the fourth connection unit(12). A selecting switch(15) has a plurality of selecting terminals corresponding the first to third connection units(1-3) and the first to third connection units(9-11).

Description

Multi LAN card {Multi LAN card}

The present invention relates to a multi-lan card, in particular, a plurality of connection parts to which different types of networks are connected, a connection part to which power lines of a plurality of hard disks respectively corresponding to the network are connected, and the network according to a user's selection. By configuring the switching means for connecting the hard disk to the internal system, it is possible to simultaneously connect and use different conventional networks such as an external network that can use the Internet and an internal network that is a local area network to one LAN card. It's about a multi-lan card that allows you to selectively connect different hard disks to your network so that you can completely escape the risk of hacking.

In general, computers are becoming an indispensable device in each home or office due to the improvement of data processing speed, the development of various applications and the development of data communication technology.

These computers can be used to acquire various useful information through the Internet as well as general work. Also, the data stored in other computers can be used for work through LAN network (internal network) connected internally. It is increasing.

In general, in order to implement an internal network (LAN network) and an external network (Internet) using a computer, a LAN card is mounted on a computer, and an internal and external network are simultaneously implemented through the LAN card.

However, since most LAN cards are provided with only one connection terminal, in order to simultaneously use an internal network and an external network using a single LAN card in a single computer, a hub in which the internal network operates through a router is connected to the incoming line of the external network. In this way, the external network is connected to the hub that binds the internal network users, so that the problem of hacking that the externally ineligible users can access the network and extract the information of the hard disk being used by the users of the internal network has emerged. It is becoming.

Accordingly, the present invention for solving the above problems is a plurality of connection parts to which different types of networks are connected, connection parts to which power lines of a plurality of hard disks corresponding to the network are connected, and the network according to a user's selection. By configuring the switching means for connecting the hard disk to the internal system, different conventional networks such as an external network that can use the Internet and an internal network that are local area networks can be connected and used at the same time. Its purpose is to provide a multi-lan card that allows users to completely escape the risk of hacking by selectively connecting different hard disks to the network.

1 is a block diagram showing a multi-lan card of the present invention.

Figure 2 is a block diagram showing another embodiment of the present invention.

Figure 3 is a flow chart showing a control process of another embodiment of the present invention.

Explanation of symbols for main parts of the drawings

1,2,3: connection part, 4,5,13,14: switching part,

6: signal conversion unit, 7: LAN control unit,

8: ypyrom, 9,10,11,12: connection,

15: selector switch, 16: power detector,

17: decoder, 18: buffer,

1 to 3 illustrate the multi-lan card of the present invention for achieving the above object, and the configuration and operation of the present invention will be described in detail with reference to this drawing.

1 shows a multi-lan card of the present invention,

In having a plurality of hard disks (20, 21, 22),

First to third connection portions (1, 2, 3) to which different types of network lines are connected;

First and second switching parts (4, 5) for switching one of the first to third connecting parts (1, 2, 3) to the signal converting part (6) by switching operation by a control signal;

A signal converter (6) for signal conversion to process data input through a network line connected by the switching operation of the first and second switching units (4, 5) in an internal circuit;

A LAN control unit 7 for matching data inputted through the signal conversion unit 6 with a LAN communication protocol between the internal system and mutual data communication;

EPIROM 8 which stores the ID and other information of the device to be displayed on the PCI (PCI) bus;

First to third connection parts 9 to 11 to which power lines of a provided hard disk are connected;

A fourth connector 12 to which a power line of the motherboard is connected;

Switching operation by a control signal to connect any one of the first to third connecting parts 9 to 11 to the fourth connecting part 12 so that the hard disk connected to the fourth connecting part 12 operates. 4 switching sections 13 and 14;

It has a plurality of selection terminals (S1 ~ S3) corresponding to the first to third connection portions (1 to 3) and the first to third connection portions (9 to 11), any one of the selection terminal by the user's operation A selection switch 15 to be selected;

A power detector 16 which detects a power pulse generated when the computer is first turned on and outputs a predetermined driving pulse;

Recognizing the switching state of the selection switch 15 when the driving pulse is input from the power detecting unit 16, and controlling the first to fourth switching units 4, 5, 13, 14 according to the recognition result. A decoder 17 for outputting a switching control signal for selecting an arbitrary network line and a corresponding hard disk;

And a buffer 18 for storing the switching state of the selection switch 15 and the operation mode of the computer as the output signal of the decoder 17.

In addition, the first to fourth switching units 4, 5, 13, and 14 are implemented as relay switches RL1 to RL4 having two input terminals, and the first and second connecting units 1 and 2 are implemented. The relay switch RL1 of the first switching unit 4 is connected to each other, and the output terminal and the third connection unit 3 of the relay switch RL1 are connected to the relay switch 5 of the second switching unit 5. By selectively switching the first and second switching sections 4 and 5, any one of the connecting sections 1 to 3 can be connected to the signal converting section 6.

In addition, the first and second connectors 9 and 10 are connected to the relay switch RL3 of the third switch 13, respectively, and the output terminals of the third connector 11 and the relay switch RL3 are fourth switched. As the third and fourth switching units 13 and 14 are selectively switched by connecting to the relay switch RL4 of the unit 14, the power line of any one of the hard disks 20 to 22 is connected to the fourth connecting jack. It is connected to (12) to drive.

For example, if the first connection unit 1 is selected and connected to the signal conversion unit 6 by the switching operation of the first and second switching units 4 and 5, the corresponding first hard disk 20 The third and fourth switching units 13 and 14 are switched to drive the power line of the first hard disk 20 so as to be connected to the fourth connector 12.

Each of the connection parts 1 to 3 is connected to different network lines, that is, different types of network lines such as an external network for using the Internet, an internal network connected to a LAN, and the like. When any one network line is selected by the switching operation of the switching units 4 and 5, the corresponding hard disks 20 to 22 are selected by the switching operations of the third and fourth switching units 13 and 14. And drive.

When the hard disks 20 to 22 are selected in the present invention, the power lines of the hard disks 20 to 22 are controlled rather than the data lines of the hard disks 20 to 22. Thus, the hard disks 20 to 22 are controlled. By controlling the power supply, the data line of the hard disks 20 to 22 can be prevented from being lengthened, thereby preventing data transmission errors.

For reference, when the length of the hard disks 20 to 22 is longer than a predetermined length, the data transmission error may occur as the level of the transmitted data signal is changed.

In the multi-lan card of the present invention, as shown in Fig. 1, various components are mounted on one substrate 23, and the connection terminal 24 formed on one side of the substrate 23 is extended to the computer. Fit into slot and fit.

Unexplained reference numeral LED is a light emitting diode for displaying the operation state of the multi-LAN card.

Referring to the operation of the present invention configured as described above is as follows.

First, the user attaches the connection terminal 24 to the expansion slot of the computer, and then connects the power lines of the first to third hard disks 20 to 22 provided in the computer with the first to third connection parts 9 to 11. The main power line drawn from the computer motherboard to the fourth connector 12, and different types of network lines, such as an external network line or an internal network line, to the first to third connection parts ( 1 to 3).

In this state, the user switches the selector switch 15 mounted on the substrate 23 to the desired selector terminals S1 to S3. Which selector switch S1 to S3 is switched to? According to this, any one of a network line connected to the first to third connecting parts 1 to 3 and a hard disk connected to the first to third connecting parts 9 to 11 is selected in pairs and connected to the computer system.

In the operation description of the present invention, the external network line is connected to the first connection part 1, the internal network line is connected to the second connection part 2, and the external network line is connected to the first and second connection parts 9 and 10, respectively. The first and second hard disks 20 and 21 corresponding to the internal network lines are connected to each other by way of example.

After the board 23 is mounted in the expansion slot of the computer, the user switches the selection switch 15 to the first selection terminal S1 and then boots the computer. Then, when the computer is booted, the computer is powered. The power detection unit 16 detects and outputs a predetermined driving pulse to the decoder 17. The decoder 17 determines the switching state of the selection switch 15 when the driving pulse is input, and the current selection switch 15 determines the current. 1 It is recognized that it is switched to the selection terminal S1.

Accordingly, the decoder 17 may provide a switching control signal for selecting an external network line connected to the first hard disk 20 and the first connection unit 1 to the first to fourth switching units 4, 5, 13, and the like. 14)

According to the switching control signal, the first switching unit 4 selects the first connection unit 1, and the second switching unit 5 selects the output terminal of the first switching unit 4. Is connected to the signal conversion section 6, the third switching section 13 selects the first connection section 9, and the fourth switching section 14 connects the third switching section. As the output terminal of 13 is selected, the power line of the first hard disk 20 connected to the third connector 9 is connected to the fourth connector 12, so that the power output from the motherboard is the fourth. The first hard disk 20 is supplied to the first hard disk 20 through the connector 12 and the first connector 9 to be set as a hard disk of a computer system in which the first hard disk 20 is booted.

Upon booting, the CPU of the computer recognizes that the board 23 is mounted in the expansion slot based on the ID and other information stored in the EPROM 8, and then boots the system according to this information. The switching state and the operation mode of the computer (external network or internal network) are stored in the buffer 18 so that the CPU of the computer can recognize the current operating state.

As described above, Plug-And-Play of the computer is supported by the information stored in the Epyrom (8), and it is not only compatible with all computer operating systems such as Windows 95, Windows 98, Windows 2000, etc., but also NT. Works on Linux, LINUX, and Solaris / X86.

When the computer is booted with the external network line and the first hard disk 20 set in the computer by the switching operation as described above, the user can implement data communication such as the Internet through the set external network line. Data transmitted and received through an external network line is stored and processed in the set first hard disk 20.

Data input to the external network line is supplied to the signal conversion unit 6 through the first and second switching units 4 and 5, and the signal conversion unit 6 can process the input data in a computer internal circuit. Signal conversion so that the LAN control unit 7 matches the LAN communication protocol so that the data input through the signal conversion unit 6 can be normally supplied to the computer internal system.

When using a LAN card of the present invention, since a plurality of network lines are connected to one LAN card and used, a separate relay device such as a hub is not required when implementing a system, and different network lines are connected to each connection unit 1 to 3. Also, since different hard disks 20 to 22 corresponding to the selected network line are provided, when the network line is changed, the corresponding hard disk is also changed, so that hackers who infiltrate through the external network line are different from other network lines. You can expect the additional effect of being able to never break into the hard disk used in the system.

On the other hand, Figure 2 and Figure 3 shows another embodiment of the present invention,

As a means of selecting network lines and hard disks 20 to 22,

Stores the software that controls the system prompt message that appears when the system is booted, and executes the software when the system is booted, and outputs a message to the user to select the connection mode of the system. A selection controller 30 which recognizes the selected connection mode and outputs the same to the decoder 31;

When a driving pulse is input from the power detector 16, a switching control signal for controlling the first to fourth switching units 4, 5, 13, and 14 is output according to a connection mode input from the selection controller 30. A decoder 31 which allows any network line and its corresponding hard disk to be selected;

It further comprises a buffer 32 for storing the operation mode of the computer as the output signal of the decoder 31, the same components as those shown in Figure 1 and the same coded to avoid redundant description, In the following description of the operation will be omitted.

The biggest feature of another embodiment of the present invention thus constructed is the software implementation of the selection of network lines and hard disks 20-22.

That is, when the computer is newly booted, the selection controller 30 outputs a guide screen for the user to select a connection mode of the computer on the screen, and when the user selects an external network or an internal network through the guide screen, The selection controller 30 recognizes the connection mode selected by the user and outputs the selected connection mode to the decoder 31.

The decoder 31 outputs a switching control signal for implementing a connection mode input from the selection controller 30 to switch the first to fourth switching units 4, 5, 13, and 14 to provide an arbitrary connection unit ( The network lines connected to 1 to 3 and the corresponding hard disks 20 to 22 are selected.

The switching control signal output from the decoder 31 is also supplied to the buffer 32 so that the connection mode of the computer is stored in the buffer 32, and the information stored in the buffer 32 is shared by the CPU of the computer.

Another embodiment of the present invention that operates as described above can also be separated from the use of a plurality of networks and the corresponding hard disk to separate from the risk of hacking at the same time can be connected to multiple network lines on a single LAN card separate relay The advantage is that no parts are required.

As described above, the present invention provides a plurality of connection parts to which different types of networks are connected, a connection part to which power lines of a plurality of hard disks corresponding to the networks are connected, and the network and the hard disk according to a user's selection. By configuring the switching means for connecting the system to the internal system, it is possible to simultaneously connect and use different conventional networks such as an external network that can use the Internet on one LAN card and an internal network that is a local area network, and to each network. By selectively connecting different hard disks, it is possible to expect the effect of providing a multi LAN card that completely escapes the risk of hacking.

Claims (4)

A plurality of hard disks (20, 21, 22) comprising: first to third connection portions (1, 2, 3) to which different types of network lines are connected; First and second switching parts (4, 5) for switching one of the first to third connecting parts (1, 2, 3) to the signal converting part (6) by switching operation by a control signal; A signal converter (6) for signal conversion to process data input through a network line connected by the switching operation of the first and second switching units (4, 5) in an internal circuit; A LAN control unit 7 for matching data inputted through the signal conversion unit 6 with a LAN communication protocol between the internal system and mutual data communication; EPIROM 8 which stores the ID and other information of the device to be displayed on the PCI (PCI) bus; First to third connection parts 9 to 11 to which power lines of a provided hard disk are connected; A fourth connector 12 to which a power line of the motherboard is connected; Switching operation by a control signal to connect any one of the first to third connecting parts 9 to 11 to the fourth connecting part 12 so that the hard disk connected to the fourth connecting part 12 operates. 4 switching sections 13 and 14; It has a plurality of selection terminals (S1 ~ S3) corresponding to the first to third connection portions (1 to 3) and the first to third connection portions (9 to 11), any one of the selection terminal by the user's operation A selection switch 15 to be selected; A power detector 16 which detects a power pulse generated when the computer is first turned on and outputs a predetermined driving pulse; Recognizing the switching state of the selection switch 15 when the driving pulse is input from the power detecting unit 16, and controlling the first to fourth switching units 4, 5, 13, 14 according to the recognition result. A decoder 17 for outputting a switching control signal for selecting an arbitrary network line and a corresponding hard disk; And a buffer (18) for storing the switching state of the selection switch (15) and the operation mode of the computer as an output signal of the decoder (17). A plurality of hard disks (20, 21, 22) comprising: first to third connection portions (1, 2, 3) to which different types of network lines are connected; First and second switching parts (4, 5) for switching one of the first to third connecting parts (1, 2, 3) to the signal converting part (6) by switching operation by a control signal; A signal converter (6) for signal conversion to process data input through a network line connected by the switching operation of the first and second switching units (4, 5) in an internal circuit; A LAN control unit 7 for matching data inputted through the signal conversion unit 6 with a LAN communication protocol between the internal system and mutual data communication; EPIROM 8 which stores the ID and other information of the device to be displayed on the PCI (PCI) bus; First to third connection parts 9 to 11 to which power lines of a provided hard disk are connected; A fourth connector 12 to which a power line of the motherboard is connected; Switching operation by a control signal to connect any one of the first to third connecting parts 9 to 11 to the fourth connecting part 12 so that the hard disk connected to the fourth connecting part 12 operates. 4 switching sections 13 and 14; Stores the software that controls the system prompt message that appears when the system is booted, and executes the software when the system is booted, and outputs a message to the user to select the connection mode of the system. A selection controller 30 which recognizes the selected connection mode and outputs the same to the decoder 31; When a driving pulse is input from the power detector 16, a switching control signal for controlling the first to fourth switching units 4, 5, 13, and 14 is output according to a connection mode input from the selection controller 30. A decoder 31 which allows any network line and its corresponding hard disk to be selected; A buffer (32) for storing an operation mode of a computer as an output signal of the decoder (31); Multi LAN card, characterized in that consisting of. The first and fourth switching units 4, 5, 13 and 14 are implemented as relay switches RL1 to RL4 having two input terminals, respectively. The connecting parts 1 and 2 are connected to the relay switch RL1 of the first switching part 4, respectively, and the output terminal and the third connecting part 3 of the relay switch RL1 are relayed of the second switching part 5, respectively. By connecting the switch RL2 and selectively switching the first and second switching units 4 and 5, any one of the connecting units 1 to 3 can be connected to the signal converting unit 6 Multi LAN card characterized by. The method according to claim 1 or 2, wherein the first and second connection parts 9 and 10 are connected to the relay switch RL3 of the third switching part 13, respectively, and the third connection part 11 and the relay switch. A multi-lan card characterized in that the output terminal of the (RL3) is connected to the relay switch (RL4) of the fourth switching unit (14).