KR100274050B1 - Network device recognition apparatus - Google Patents

Abstract

The present invention relates to a recognizing apparatus for a network device that notifies whether a network is used to perform network tasks by interconnecting a plurality of peripheral devices or other computers in a computer.

The present invention detects the access of the port replicator in the network system designed by separating the MAC and the PHY constituting the network and at the same time confirms the presence of the MAC and the PHY, the network can be used if the detection results are all connected or present. By notifying the user, the user can prevent the user's mistake in using the network and at the same time provide the user with accurate data on whether the network is used.

Description

Recognition device of network device

The present invention relates to a device for recognizing a network device that communicates with a plurality of peripheral devices or other computers in a computer and notifies whether a network is used to perform network tasks. In particular, the present invention detects a connection of a port replicator. Determining the connection between the media access controller (hereinafter referred to as MAC) and the physical layer (hereinafter referred to as PHY) for controlling the analog and digital portions of the network system, and providing the network to the user according to the determination result. The present invention relates to an apparatus for recognizing a network device capable of preventing an erroneous determination as to whether or not the system is used by notifying whether the system is used.

In recent years, as the use of computers increases, a data communication system includes a network so that a computer, a transmission device, an exchanger, a peripheral device, and a line can be connected and used as necessary.

In particular, in the case of a portable notebook computer, a network-enabled place can be shared with peripherals or other computers to perform various functions as needed, and other computers can be connected to a network system to use a single resource. It can be used effectively.

As an example of such a network system, a plurality of independent computers, office automation (OA) devices, workstations, and the like can be connected to each other in a contiguous area by coaxial or optical fiber cables to communicate with each other. There is a local area network (LAN), which is a kind of data communication system.

The LAN is capable of high speed communication by using a broadband transmission medium, minimizes packet delay, communicates with any device in the network, has a very low error rate, does not require a path selection, and uses a broadcast type. This is possible because the node is inexpensive, the node can be connected to the node of the remote network, and can communicate with the remote node at a low cost, and is being developed continuously.

1 is a view showing a configuration by a recognition apparatus of a network system according to the prior art.

Referring to FIG. 1, a network system largely includes a system unit 1 for performing various calculations with information represented as a variable having a limited number of discrete values and driving the system according to a result of performing the task or action of the system. And a port replicator (2) installed in the connector (3) in order to inform the system unit (1) by using a physical quantity continuously connected to another system or peripheral device such that the task or action is continuously changed such as current and voltage. .

Here, in more detail, the configuration of the network system, MAC (1a) is installed in the system unit (1) to control the LAN and to drive the system according to the control result, and to control the digital part of the system;

A PCI (peripheral component interconnect, PCI) control unit (1b) positioned in the system unit (1) for controlling an interface between a network system and a peripheral device and connected to the MAC (1a) to control and manage an address;

It is installed in the port replicator (2) is connected to the RJ-45 (2b) which is a connection line of the LAN (LAN), and includes a PHY (2a) for controlling the analog part of the system.

Here, the MAC 1a and the PHY 2a are connected to each other by an MII bus, thereby enabling data transmission and reception. In addition, reference numeral R, which is not described in FIG. 1, represents a resistance.

Referring to the operation of the network device recognition apparatus according to the prior art configured as described above are as follows.

First, the system unit 1 checks the existence of the MAC (1a) and the PHY (2a) to determine the availability of the network. However, the PCI controller 1b determines only the presence of the MAC 1a regardless of the presence of the PHY 2a, and a network device exists in Windows or other programs according to the determination result. Will be present.

That is, when the PCI controller 1b transmits the address AD1 using the PCI bus to determine whether the MAC 1a capable of controlling the LAN exists, the MAC 1a identifies the AD1 selection signal. (Identification Select, hereinafter called IDSEL). The IDSEL signal is a signal for selecting a corresponding address from various IDs in the PCI bus.

Therefore, the user may incorrectly recognize that the system supports the network even though the PHY 2a does not exist, thereby causing the system to malfunction or be confused.

Next, in the case of using a notebook computer, unless the port replicator 2 is separately purchased, even if the MAC unit 1a exists in the system unit 1, the PHY 2a installed in the port replicator 2 does not exist. As a result, the system cannot be licensed for use. However, if the system indicates the permission to use the network, there is a problem that the user may mistakenly think that network support is possible.

The present invention has been made to solve the above problems of the prior art, the object of which is to detect the presence of the MAC and PHY at the same time to detect the access of the port replicator in a network system designed by separating the MAC and PHY If it is detected that all of the check results are connected or present, the user is informed that the network is available. To provide.

1 is a view showing a configuration by a recognition apparatus of a network system according to the prior art,

2 is a circuit diagram showing a configuration of a recognition device of a network device according to the present invention;

3 is a block diagram schematically illustrating a configuration of a recognition device of a network device according to the present invention.

<Explanation of symbols about main part of drawing>

10: system unit 11: MAC

12 PCI controller 13 NOT gate

14 AND gate 15: ON / OFF logic section

20: Port Replicator 21: PHY

22: RJ-45 25: connector

R1, R2: resistance

According to a feature of an apparatus for recognizing a network device according to the present invention for solving the above problems, an operation of establishing, maintaining, and disconnecting a physical link for controlling an analog portion of a network system is included. A port replicator unit for generating and outputting a first access control signal when the system is connected to the system while processing the control; A system control unit which is connected to the port replicator net unit and generates and outputs a second connection control signal for confirming whether the digital part of the network system can be controlled; And a usage control unit configured to receive the first access control signal and the second access control signal, respectively, and generate a use control signal relating to whether the network is used, and transmit the generated use control signal to the system.

Here, the usage control unit includes an AND gate to output the permission signal only when both the first and second connection control signals are transmitted.

Hereinafter, an embodiment of a network device recognition apparatus according to the present invention will be described with reference to the accompanying drawings.

2 is a circuit diagram illustrating a configuration of a recognition device of a network device according to the present invention, and FIG. 3 is a block diagram schematically illustrating a configuration of the recognition device of a network device according to the present invention.

Referring to FIGS. 2 and 3, a network system largely includes a system unit that performs various calculations with information represented as a variable having a limited number of discrete values and drives the system according to the result of the execution. 10) and the system unit 10 by being installed in the connector 25 in order to inform the system unit 10 by using a physical quantity continuously connected to other systems or peripherals, such as a task or action, such as current, voltage, etc. And a port replicator (2) connected to each other to transmit and receive data.

In this case, when the port replicator 20 is present in the system, a second connection control signal for connection to the system is generated and output while being connected to the ground.

However, in more detail, the configuration of the network system, MAC (11) is installed in the system unit 10 to control the LAN and to drive the system according to the control result, and to control the digital part of the system, Located in the system unit 10 for controlling the interface between the network system and the peripheral device, and connected to the MAC (11) to control and manage the address at the same time to confirm the presence of the MAC (11) according to the check result A PCI (peripheral component interconnect) control unit 12 for generating and outputting an address AD1 and the port replicator 20 and connected to an RJ-45 22 that is a connection line of a LAN. And a PHY 21 for controlling the analog portion of the system, a NOT gate 13 for receiving the second connection control signal and inverting the same, and a second connection control signal inverted with the AD1. An AND gate 14 for generating a connection permission signal and outputting only when the two signals are true is included.

Here, the MAC 11 and the PHY 21 are connected to each other by separate lines, called MII buses, so that they can communicate more conveniently and stably in terms of technology or artwork than in the case of using a PCI bus. . On the other hand, the access permission signal is connected to the IDSEL of the MAC (11), so that the IDSEL selects the corresponding address from the various IDs in the PCI bus.

Reference numerals R1 and R2, which are not described in FIG. 2, represent resistances, respectively.

In particular, in FIG. 3, the NOT gate 13 and the AND gate 14 of FIG. 2 determine whether the network is used or not so that the system can perform the correct driving according to the determination result. It can be represented by the on / off logic (15) to determine the on / off (ON / OFF) driving.

The operation by the recognition device of the network device according to the present invention configured as described above is as follows.

First, when a user connects and uses a network system, make sure that the network device exists in Windows or other programs.

Therefore, in the network system in which the MAC 11 and the PHY 21 are designed separately, the MAC 11 and the PHY 21 must both exist, but the network can be used. That is, the PCI controller 12 transfers AD1 to the input of the AND gate 14 to determine whether the MAC 11 exists. After confirming that the port replicator 20 is connected to the connector 25, the NOT gate 13 generates a second connection control signal that is generated and output to inform the system 10 that the port replicator 20 is connected. It is reversed by passing in the input of.

Since the PHY 21 is installed in the port replicator 20, the presence of the PHY 21 can be known through the second connection control signal.

Then, a second connection control signal inverted and output from the NOT gate 13 is transferred to another input of the AND gate 14, and the AND gate 14 is the AD1 or the inverted second connection control. The connection permission signal is output only when all signals are true. In other words, the access permission signal is transmitted to the MAC 11 only when the presence of the PHY 21 is confirmed by the second access control signal.

In this way, the MAC 11 receives the access permission signal, connects AD1 to IDSEL, selects a corresponding address in the PCI bus, and notifies the user of network use.

However, when the second connection control signal is not transmitted, that is, when it is detected that the PHY 21 does not exist, the AND gate 14 does not generate a connection permission signal. 11) the system assumes that both the MAC 11 and PHY 21 are absent and stops all support related to the network, so the user knows that there is no network device.

Therefore, when the user uses the network in a portable notebook computer or other computer, the user can know the exact information about the network use by randomly moving the place. Therefore, when the network is required, the RJ installed in the port replicator 20 is needed anytime. A network system can be used by connecting a LAN to -45 (22).

The apparatus for recognizing a network device according to the present invention configured as described above detects whether a port replicator is connected in a network system designed by separating a MAC and a PHY, and at the same time, checks the presence of a MAC and a PHY, and confirms that all the results are connected Alternatively, when the presence is detected, the network can be informed to the user that the network can be used, thereby preventing the user from being mistaken and providing accurate data on whether the network is used or not.

Claims (2)

It includes the operation of establishing, maintaining, and disconnecting the physical link to control the analog part of the network system, and process the connection control between the system and the peripheral device. port replicator); A system control unit which is connected to the port replicator net unit and generates and outputs a second connection control signal for confirming whether the digital part of the network system can be controlled; And a use control unit configured to receive the first access control signal and the second access control signal, respectively, and generate a use control signal relating to whether the network is used, and transmit the generated use control signal to the system. The method of claim 1, And the AND controller includes an AND gate to output a permission signal only when both the first access control signal and the second access control signal are transmitted.