KR200257049Y1 - Networks Selector - Google Patents

Abstract

In order to smoothly use the different network environment at different times in one computer system, the number of hard disks corresponding to the network environment can be installed and the network environment can be constructed without additional network reconfiguration by simple external switch operation only. A network selection circuit is disclosed. The multi-network selection circuit includes an input / output port unit for receiving a network selection signal from the outside and outputting a current network status signal; A decoding unit for selecting an initial network selection input signal and a network switching unit constituting a transmission path of the network; By providing the IDE switching unit to block the control signal path of the hard disk linked to the inactive network network, it is possible to easily build the desired network environment.

Description

Computer multi-network selector that can build network environment {Networks Selector}

The present invention relates to a computer system, and more particularly to a computer multiple network selection circuit capable of constructing a network environment.

In general, the computer multi-network selector selectively configures a transmission path of only one of the inputs of multiple networks which cannot be used together for security reasons, such as computer network card and network network or telephone line and modem, or ADSL line and ADSL card. Technology. The prior art requires a separate operation or program execution for network reconfiguration except for automatically assigning an IP address.

Therefore, there is an urgent need for a technology that enables one computer system to be used in different network environments at different times. In addition, a means for safe network switching, a means of expressing the state of the network currently being used to the user, and a protection measure in case of malfunction are required.

Accordingly, an object of the present invention is to provide a circuit technology that can be used in different network environments at different times in view of the above problems.

Another object of the present invention is to provide a multi-network selection circuit that can be used independently of the hard disk interlocked with the network to protect the network network and all data related to the network from other networks.

The computer multiple network selection circuit capable of constructing a network environment of the present invention for achieving the above object includes an input / output port unit for receiving a network selection signal from the outside and outputting a current network status signal; A decoding unit for selecting an initial network selection input signal and a network switching unit constituting a transmission path of the network; And an IDE switching unit to block a control signal path of a hard disk linked to an inactive network.

According to the configuration of the present invention, it is possible to perform a desired operation by selecting one of a plurality of networks in one computer system to achieve a network environment, and to use the hard disk linked to the network independently The network and related data can be secured from other network.

1 is an external view of a computer to which the present invention is applied

2 is a block diagram according to an embodiment of the present invention.

3 is a detailed circuit diagram of FIG.

<Explanation of symbols for main parts of drawing>

100: multiple network selection circuit

110: input and output port unit 120: decoding unit

130: IDE switching unit 140: external selection signal generator

150: external display unit 160: relay drive unit

170: network switching unit 180: network connector

190: display unit

Hereinafter, a computer multi-network selection circuit capable of constructing a network environment according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Like or similar functional blocks in the figures are represented by the same or similar reference numerals as possible.

1 shows an external view of a computer system to which the present invention is applied. Referring to FIG. 1, a computer system includes a main board equipped with a microprocessor (MPU) and a memory (RAM, ROM), a display adapter, a plurality of hard disk drives as serial, parallel ports, and auxiliary storage devices; The floppy disk drive, CD-ROM drive, ZIP drive, etc. are called the computer body. In addition, a mouse and a keyboard are typically used as input devices, and printers and monitors are used as output devices. The present invention is applied to an auxiliary memory device connected through the IDE (Integrated Development Environment) port of the main body of the computer. In FIG. 1, a computer multi-network selection circuit capable of constructing a network environment of the computer system according to an embodiment of the present invention is made of a PCI card and connected to a main board. It can be seen that the switch and the display for making the selection are visible in appearance. The switch and the display section are connected to the input / output port section. The use of the integrated switch can be used to switch all the multiple computer systems, so it is easy to use the same educational center, and the administrator can easily build a network environment of all systems.

FIG. 2 schematically shows a block diagram of a computer multiple network selection circuit 100 capable of constructing a network environment of the computer system in FIG. 2, an input / output port unit 110 for receiving a network selection signal from the outside and outputting a current network status signal, a decoding unit 120 for selecting an initial network selection input signal, and a transmission path of a network It comprises a network switching unit 170 to configure, the IDE switching unit 130 for blocking the control signal path of the hard disk linked to the inactive network network, the display unit 150 for displaying the network status. In the figure, the thick bus line is the cable connecting the IDE bus, and the IDE port is composed of 40 pins, but more than 80 wires can be used with multiple cables and special material sheaths to remove noise. The above cables are the main board 30 and the hard disk 40 or the main board only the one-way control signal line of the IDE of the hard disk connected in parallel by the initial network selection signal in the IDE switching unit 130 It is responsible for blocking the 30 and the hard disk 41, and selectively connects the two network networks input through the network connector unit 180 to the network adapter using the initial network selection signal from the network switching unit 170 By forming the transmission path of the network.

3 is a detailed circuit diagram of an embodiment of a computer multiple network selection circuit 100 capable of constructing the network environment of FIG. 2. In the case of two network networks, the external switch unit is composed of a selection switch S1 operated by receiving power of + 5V and GND from the input / output port 110 and the output of the selection switch unit 110 has a value of + 5V or GND. As the 'high' or 'low' value of the digital signal. The generated output signal detects an initial switch state by the decoding unit 120 through the input / output port unit 110. The decoding unit includes NAND gates, a transistor, a resistor, a capacitor, and the like, and the decoding unit may be replaced with another equivalent device. The network selection signal input to the input / output port 110 has two states of 'high' or 'low' values. In order to detect the initial network selection signal, a clock is generated using the resistor R1 and the capacitor C1. The resistor R1 uses' 1 kW 'and the capacitor C1 uses '22 kW'. The generated clock is inverted to NAND gate 1 and converted to falling clock, and is processed as input network selection signal and 2 NAND gate. Therefore, when the network select signal is 'high' input, the output of NAND gate # 2 is changed to 'high' after 'low' occurs. All other signals will output 'high'. Only 'low' of the output signal of NAND gate 2 is inverted to NAND gate 3 to turn on transistor Q5. Therefore, the output terminal of the transistor Q5 becomes 'low' and inverts to NAND gate 4 to obtain the 'high' signal, which is the initial network selection signal. The relay driver 160 is composed of a two-stage transistor driving circuit, which effectively improves malfunction caused by noise. The relay driver 160 drives and protects the first-stage transistors Q2 and Q4 through the stabilization circuits R4, R7, C2, and C3 through the output signals of the decoding unit 120 through the protection resistors R3 and R6. The two-stage transistors Q1 and Q3 are driven through the resistors R2 and R5. The resistors R3, R4, R6, and R7 are '10', respectively, and the resistors R2 and R5 are '150', and the capacitors C2 and C3 are '22', respectively. Q4) used 'C3198' and two-stage transistors (Q1, Q3) used 'TIP32C', respectively. The IDE switching unit 130 includes a countercurrent protection diode. The diodes (D1, D2, D3, D4, D5, D6, D7, D8) are each '1N4148' and the relays (RLY1, RLY2, RLY3, RLY4, RLY5, RLY6, RLY7, RLY8) are each 'general 5-volt 2' Circuit relay '. Integrating the above relay driver 160 and IDE switching unit 130 can be replaced by a +5 volt bus switching integrated circuit. The IDE switching unit 130 may substantially control hard disk operation related control lines among the pins of the IDE and continuously supply power to the hard disks, thereby avoiding interference of parallel data lines connected between the hard disks. The reason is that powerless hard disks cause impedance interference to IDE data lines. Bypass capacitors can be used for noise rejection around any integrated circuit. The IDE switching unit 130 serves to deactivate one hard disk among a plurality of hard disks connected in parallel with the motherboard. The I / O pins of the ATA signal standard are responsible for switching the control lines between 16 hard disks and the main board except the GND and Host Data Bus parts. Looking at the switching line, pin 1 (Reset), which provides a hardware reset signal from the motherboard to the hard disk, pin 21 (DMA request) of the DMA request signal to the motherboard, and pin 23, which requests input and output to the hard disk (Device I). / O Write), pin 25 (Device I / O Read) requesting I / O reading to the hard disk, pin 27 (I / O Channel Ready) of the I / O ready status output of the hard disk, 28 to select the master or slave directly. Pin Select (Cable Select), Pin 29 (DMA Acknowledge) approved by the motherboard in response to the DMA request of the hard disk, Pin 31 (Device Interrupt), Pin 32 (IOCS16), Pin 33 (Host Address Bus Bit) of the interrupt request signal. 1), Hard Disk of Pin 34 (Passed Diagnostics), Pin 35 (DeviceAddress0), Pin 36 (Device Address2), Pin 37 (Chip Select0), Pin 38 (Chip Select1), Pin 39 (Drive Active / Slave Present). It corresponds to 16 lines of control signal between main boards. According to the operation of the IDE switching unit 130, the hard disk allocated to the network may be activated. The network switching unit 170 includes a countercurrent protection diode. The diodes D9 and D10 are '1N4148', respectively, and the relays RLY9 and RLY10 each use a 'universal 5-volt two-circuit relay'. The network switching unit 170 may be replaced with a +5 volt network switching integrated circuit. The network switching unit 170 performs a switching operation to configure a transmission path to the output of the network connector unit 180 multiple network networks input to the network connector unit 180. The network connector unit 180 has an output connector connected to an input connector and a network adapter through multiple networks.

In addition, since the external switch unit and the external display unit are configured to be connected through the input / output port unit 110, it is possible to control a plurality of systems at the same time can be suitably used for the classroom of the training room. For example, even in the morning and afternoon training course, the INTERNET training in the morning and the EXCEL training in the afternoon, you can build a new network environment just by switching the instructor in the same training room. Students can keep their curriculum materials safe by using a separate network environment from other students. Students take classes with their own dedicated hard disks assigned to the network, so students can recognize the system as their own and improve the quality of their education. In addition, it is possible to increase the concentration of education by limiting unnecessary internet access in the curriculum.

Although the above-described present invention has been described and limited by way of example, various changes may be made without departing from the technical spirit of the present invention according to the matter.

According to the present invention as described above, it is possible to perform a desired operation by selecting one of a plurality of network networks in one computer, there is an effect that a multi-network environment is achieved. In addition, the integrated control of multiple computers enables multi-network environment of multiple systems. Of course, since the hard disk allocated to the network can be used independently, the network and related data can be protected from other networks. Therefore, one hard disk is formed in one network and the inactive hard disk and the inactive network cannot be used. An inactive hard disk and an inactive network are secured from the current user or network. Therefore, the hard disk and the important network of important data can be safely used in the external network such as the Internet and a single computer. The computer multi-network selector capable of constructing the network environment can safely use the network network essential for the information age.

Claims (8)

A computer multiple network selection circuit capable of constructing a network environment; An input / output port unit for receiving a network selection signal from the outside and outputting a current network status signal; A decoding unit detecting an initial state of a network selection signal input from an input / output port; A relay driver for driving the relay in response to the detection signal of the decoder; An IDE switching unit which blocks a control signal path of one of the plurality of hard disks connected to the main board; A network switching unit forming a transmission path between the network and the network adapter; A network connector for connecting the input / output of the network; A computer multi-network selection circuit capable of constructing a network environment, comprising: a display unit for displaying a network environment state The computer multi-network selection circuit of claim 1, wherein the decoding unit has at least a NAND gate integrated circuit connected to the input / output port unit. The computer multi-network selection circuit of claim 1, wherein the relay driver includes two-stage transistors for improving malfunction of noise. The network of claim 1, wherein the IDE switching unit comprises a relay that operates as the relay driving unit of claim 3, which electrically blocks all control signal pins except for the GND and DATA lines of one of the plurality of hard disks connected to the main board. Computer multi-network selection circuit that can be constructed. 2. The computer multiple network capable of constructing a network environment according to claim 1, wherein the network switching unit has at least a relay operating as the relay driver of claim 3, which forms a transmission path with a network adapter through a plurality of network networks inputted through the network connector unit. Network selection circuit. The RJ-45 standard output terminal is connected to a plurality of network networks and connected to RJ-45 and RJ-11 standard input terminals and network adapters for preventing misinsertion. A computer multiple network selection circuit capable of constructing a network environment, characterized in that it has at least. The computer multi-network selection circuit as claimed in claim 1, wherein the input / output port unit has at least a connector for connecting a network selection signal input from outside of a single or multiple systems and signals for output of the external display unit. The computer multi-network selection circuit as claimed in claim 1, wherein the display unit includes a light emitting diode for visually displaying the current state of the network to the outside.