KR20130055796A - Kvm system, kvm receiver switch, kvm sender controller and control method for controlling multi-use - Google Patents

Kvm system, kvm receiver switch, kvm sender controller and control method for controlling multi-use Download PDF

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Publication number
KR20130055796A
KR20130055796A KR1020110121410A KR20110121410A KR20130055796A KR 20130055796 A KR20130055796 A KR 20130055796A KR 1020110121410 A KR1020110121410 A KR 1020110121410A KR 20110121410 A KR20110121410 A KR 20110121410A KR 20130055796 A KR20130055796 A KR 20130055796A
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kvm
sender
computer
receiver
accessible
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KR1020110121410A
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Korean (ko)
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정재훈
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주식회사 유디아이디
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Publication of KR20130055796A publication Critical patent/KR20130055796A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements

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Abstract

Disclosed are a KVM system, a KVM receiver switch, a KVM sender controller, and a method of controlling the same. KVM system according to an embodiment of the present invention, a plurality of KVM receivers respectively connected to a plurality of input and output devices; A KVM receiver switch connected to the plurality of KVM receivers and performing a switching operation for the plurality of KVM receivers; A plurality of KVM senders, each connected to a plurality of computers, each of which controls a corresponding computer; It is determined whether a computer connected to a plurality of KVM senders is connected to each KVM sender, and when a computer connection request signal is received from at least one of the plurality of KVM receivers, the computer is determined to be accessible among the KVM senders. A KVM sender controller for connecting a corresponding KVM sender to a KVM receiver switch; And a wired / wireless network connecting the KVM receiver switch and the KVM sender controller.

Figure P1020110121410

Description

MM system, MM receiver switch, MM sender controller, and control method for controlling multiple use {KVM System, KVM Receiver Switch, KVM Sender Controller and Control Method for Controlling Multi-Use}

The present invention relates to a KVM system, a KVM receiver switch, a KVM sender controller, and a control method thereof. More specifically, a customer who stays in each guest room installs a computer while minimizing the number of computers in a hotel, a motel, an inn, and the like. The present invention relates to a KVM system, a KVM receiver switch, a KVM sender controller, and a method of controlling the multi-use to simplify the wiring work regardless of the number of rooms and computers.

Recently, cloud computing technology based on the Internet has been proposed. Such cloud computing technology allows users to access software connected to the Internet by using various terminals anytime, anywhere.

Cloud computing permanently stores information on servers on the Internet and temporarily stores it on client terminals such as desktops, table computers, laptops, wall computers, and handheld devices. Cloud computing allows users to access the services they want over the Internet, even if they don't have the expertise or control of the technology infrastructure they support. In other words, the user keeps the data on a reliable server, receives the results of the program executed on the server, and important data among the results can be safely stored on the server. In addition, cloud computing enables a disadvantaged class user who does not have a dedicated device for accessing the Internet to enjoy a personal computing environment through a public computer, and further eliminates the limitations of equipment and storage space that an individual must carry.

To this end, it is essential to build a cloud service system based on virtualized computer technology. Such a cloud service system refers to a system pool in which a computer pool is formed on a complex hardware structure. The construction of the cloud service system requires technologies such as efficiently managing a plurality of virtual machines and controlling network traffic of the virtual machines.

On the other hand, with the development of electronic and communication technologies, a plurality of computers are used simultaneously. In particular, the Internet data center or the like typically uses a plurality of computers. In this case, if each input / output device is used individually for each of the plurality of computers, each input / output device must be used separately for each computer operation. Not only is it less efficient, it also wastes work space occupied by input and output devices.

In order to overcome this problem, a method of operating a plurality of computers mounted in one rack (case) has been proposed. In this manner, a plurality of computers share input / output devices (eg, a keyboard, a video device such as a monitor, a mouse, etc.), and the respective input / output devices are used to connect each computer. To control. In this case, a device that allows a plurality of computers to share the respective input and output devices is called an input / output sharing device, and is called a KVM switch after the English letters of the respective input and output devices.

In consideration of such cloud computing technology and KVM switch technology, each user side has only KVM switch, the corresponding computer is collectively installed and managed in a remote rack, and the KVM switch allows the computer to be used remotely. A KVM system can be implemented that can have various advantages that are the same / similar to that of the cloud service system without the need for complex hardware structures and technologies such as a cloud service system.

1 is a diagram illustrating an example of a general KVM system.

Referring to FIG. 1, the KVM system includes a KVM receiver 120 connected to an input / output device 110 such as a keyboard, a display (video device), a mouse, a KVM sender 140 connected to a main board of a computer 130, And a wired and wireless communication network 150 for communicatively connecting the KVM receiver 120 and the KVM sender 140.

In such a KVM system, when the power of the KVM sender 140 is turned on and the user transmits a command signal to turn on the computer 130 through the KVM receiver 120 to the KVM sender 140, the KVM sender ( 140 applies the received command signal to the computer 130 so that the motherboard of the computer 130 is booted. Thereafter, the KVM receiver 120 on the user side and the KVM sender 140 on the computer 130 communicate with each other so that the user can remotely use the computer 130 through the input / output device 110.

On the other hand, in recent years, hotels, motels, inns, etc. have installed computers in each room to provide better service to customers. However, when a computer is installed in each room, a small hardware component such as a hard disk, a memory, or the like is stolen by the customer staying in the room, or the computer is often damaged. Therefore, in order to solve this problem, hotels, motels, inns, etc. are installed in a management room by installing computers in one rack (case) by applying the above-described KVM system, and only an input / output device and a KVM receiver are installed in each room. This prevents theft of hardware components and damages to the computer.

However, in the case of applying a general KVM system to a hotel, a motel, an inn, etc., the number of computers should be the same as the number of rooms. However, it is not uncommon for customers in all rooms, such as hotels, motels, and inns, to use computers at the same time, so having the same number of computers as the number of rooms is a waste of money, as well as being managed by an administrator. The number of computers to be done has a problem that efficient management is difficult.

In addition, in general KVM system, UTP (Unshielded Twisted Pair) cable must be connected from each guest room to each computer corresponding to each other. However, as the number of rooms and computers becomes larger, the wiring work becomes more difficult. .

The present invention was devised to solve the above-mentioned problems, while minimizing the number of computers in hotels, motels, inns, and the like, so that the guests staying in each room do not have inconvenience in using the computers, and rooms and computers. It is an object of the present invention to provide a KVM system, a KVM receiver switch, a KVM sender controller, and a control method thereof, which control multiple uses to simplify wiring work regardless of the number.

KVM system according to an embodiment of the present invention for achieving the above object, a plurality of KVM receivers respectively connected to a plurality of input and output devices; A KVM receiver switch connected to the plurality of KVM receivers and performing a switching operation for the plurality of KVM receivers; A plurality of KVM senders, each connected to a plurality of computers, each of which controls a corresponding computer; It is determined whether a computer connected to a plurality of KVM senders is connected to each KVM sender, and when a computer connection request signal is received from at least one of the plurality of KVM receivers, the computer is determined to be accessible among the KVM senders. A KVM sender controller for connecting a corresponding KVM sender to a KVM receiver switch; And a wired / wireless network connecting the KVM receiver switch and the KVM sender controller.

When there are two or more computers that are determined to be accessible among the plurality of computers, the KVM sender controller may select an arbitrary KVM sender from among KVM senders corresponding to the accessible computers, and connect the KVM receiver switch to the KVM receiver switch.

The KVM sender controller assigns a rank to each KVM sender, and when there is more than one computer determined to be accessible among a plurality of computers, the KVM sender selects the KVM sender that corresponds to the best rank among the KVM senders corresponding to the accessible computers. It can also be connected to a KVM receiver switch.

Each KVM receiver assigns an identification number using firmware when transmitting a KVM signal through a wired or wireless network, and the KVM receiver switch can identify a corresponding KVM receiver based on the assigned identification number.

The KVM sender controller may identify each KVM sender based on a DIP switch setting value set for each KVM sender.

According to another aspect of the present invention, a KVM system includes: a plurality of KVM receivers connected to a plurality of input / output devices; A KVM receiver switch connected to the plurality of KVM receivers and performing a switching operation for the plurality of KVM receivers; A plurality of KVM senders, each connected to a plurality of computers, for controlling each corresponding computer, determining whether the respective computers are accessible, and storing the determination result as accessible state information; A KVM sender hub connected to the plurality of KVM senders; And a wired / wireless network connecting the KVM receiver switch and the KVM sender hub, wherein each KVM receiver receives connection connection state information from each KVM sender when a computer connection request signal is received through a corresponding input / output device. And transmits a computer connection request signal to a KVM sender corresponding to a computer determined to be accessible among a plurality of KVM senders based on the received connectable state information.

Each KVM receiver may transmit a computer connection request signal by selecting an arbitrary KVM sender from among KVM senders corresponding to the connectable computer, when there are two or more computers that are determined to be accessible among the plurality of computers.

Each KVM receiver assigns a rank to each KVM sender, and if there are two or more computers that are determined to be accessible among a plurality of computers, the KVM sender corresponding to the best rank among the KVM senders corresponding to the accessible computers is assigned. Optionally, the computer connection request signal may be transmitted.

Each KVM receiver assigns an identification number to a KVM signal including a computer connection request signal using firmware and transmits the identification number to a corresponding KVM sender.

Each KVM sender switches connectable state information when each corresponding computer is connected to any one of the plurality of KVM receivers, or when the use of each corresponding computer is terminated.

KVM receiver switch according to an embodiment of the present invention for achieving the above object, a communication unit connected to a plurality of KVM receiver; A KVM receiver identification unit for identifying a corresponding KVM receiver based on an identification number included in the received KVM signal when a KVM signal is received from at least one KVM receiver among a plurality of KVM receivers; And a switching controller for switching to the identified KVM receiver.

KVM sender controller according to an embodiment of the present invention for achieving the above object, KVM sender communication unit connected to a plurality of KVM sender; A connectable computer determination unit for determining a connectable computer among a plurality of computers connected to each of the KVM senders; A wired / wireless network communication unit for connecting to at least one KVM receiver through a wired / wireless network; And a connection unit for connecting the KVM sender corresponding to the computer determined to be accessible by the connectable computer determination unit to the KVM receiver when the computer connection request signal is received from the KVM receiver through the wired / wireless network communication unit. .

If there is more than one computer determined to be accessible by the connectable computer determination unit, the connection unit may select an arbitrary KVM sender from among KVM senders corresponding to the connectable computer, and connect the KVM receiver to the KVM receiver.

The connection unit ranks and stores each KVM sender, and when two or more computers are determined to be accessible by the connectable computer judgment unit, selects the KVM sender having the highest priority among the KVM senders corresponding to the connectable computer. You can also connect to a KVM receiver.

A KVM receiver according to an embodiment of the present invention for achieving the above object, a KVM connected to an input and output device including a keyboard, a display, a mouse, and receives a KVM signal including a computer connection request signal from the connected input and output device Signal receiver; A status information receiver configured to receive connectable status information including whether a corresponding computer is accessible from each KVM sender connected through the KVM sender when a KVM signal including a computer connection request signal is received through the KVM signal receiver; And a KVM signal transmitter for transmitting a KVM signal to a KVM sender corresponding to a computer determined to be accessible among a plurality of KVM senders based on the accessible state information received through the state information receiver.

When there are two or more computers that are determined to be accessible, the KVM signal transmission unit may select an arbitrary KVM sender from among KVM senders corresponding to each computer and transmit the KVM signal.

The KVM signal transmission unit assigns a rank to each KVM sender, and when there are two or more computers that are determined to be accessible among a plurality of computers, the KVM sender selects the KVM sender corresponding to the best rank among the KVM senders corresponding to the respective computers. It may also transmit KVM signals.

A control method of a KVM system according to an embodiment of the present invention for achieving the above object, a plurality of KVM senders connected to a plurality of computers, a KVM sender controller for controlling each KVM sender, a plurality of input and output devices, respectively A control method of a KVM system including a plurality of connected KVM receivers, a KVM receiver switch for performing switching operations for each KVM receiver, and a wired / wireless network connecting the KVM sender controller and the KVM receiver switch. Determining which of the computers in the computer are accessible; And when the computer connection request signal is received from at least one KVM receiver, connecting the KVM sender corresponding to the computer determined to be accessible among the plurality of KVM senders to the KVM receiver switch by the KVM sender controller. do.

The control method of the above-described KVM system may include: when the use of at least one computer is terminated, sending a computer termination message to a KVM sender by a KVM sender corresponding to the computer; And storing the computer shutdown message received by the KVM sender controller.

In the connection step, when there are two or more computers that are determined to be accessible by the connectable computer determination unit, an arbitrary KVM sender may be selected from the KVM senders corresponding to the connectable computers and connected to the KVM receiver.

The attaching step assigns and stores a rank to each KVM sender, and if there are two or more computers that are determined to be accessible by the connectable computer judgment unit, the KVM sender with the highest priority among the KVM senders corresponding to the connectable computer is selected. You can select to connect to a KVM receiver.

A control method of a KVM system according to another embodiment of the present invention for achieving the above object, a plurality of KVM sender, each connected to a plurality of computers, KVM sender hub connected to a plurality of KVM sender, each connected to a plurality of input and output devices In a control method of a KVM system including a plurality of KVM receivers, a KVM receiver switch for performing switching operations for each KVM receiver, and a wired / wireless network connecting a KVM sender hub and a KVM receiver switch, each KVM sender corresponds. Determining whether the computer is accessible and storing the result as accessible state information; At least one of the plurality of KVM receivers receiving a computer connection request signal through a corresponding input / output device; Receiving, by the KVM receiver receiving the computer connection request signal, from each KVM sender connected through the KVM sender hub; And transmitting, by the KVM receiver, a computer connection request signal to a KVM sender corresponding to a computer determined to be accessible among the plurality of KVM senders based on the received accessible state information.

The control method of the above-described KVM system may further include driving the corresponding computer by the KVM sender that has received the computer connection request signal and converting the stored accessible state information into a non-accessible state.

In addition, the control method of the above-described KVM system, when the KVM receiver receives a computer termination request signal from the corresponding input and output device, transmitting the computer termination request signal to the KVM sender to which the computer connection request signal is transmitted; And terminating the corresponding computer by the KVM sender receiving the computer shutdown request signal, and switching the stored accessible state information.

The control method of the KVM system, KVM receiver switch, KVM sender controller and KVM system according to an embodiment of the present invention, the minimum number of computers installed in hotels, motels, inns, etc., but the customer stays in each room using the computer There is no inconvenience in doing this.

In addition, the control method of the KVM system, the KVM receiver switch, the KVM sender controller, and the KVM system according to the embodiment of the present invention can simplify wiring work regardless of the number of rooms and computers.

1 is a diagram illustrating an example of a general KVM system.
2 is a diagram schematically illustrating a KVM system according to an embodiment of the present invention.
3 is a diagram schematically illustrating a configuration of a KVM receiver switch used in the KVM system of FIG. 2.
4 is a diagram schematically illustrating a configuration of a KVM sender controller used in the KVM system of FIG. 2.
5 is a flowchart illustrating a control method of a KVM system according to an exemplary embodiment of the present invention.
6 is a diagram schematically illustrating a KVM system according to another embodiment of the present invention.
7 is a diagram schematically showing a configuration of a KVM receiver according to an embodiment of the present invention.
8 is a flowchart illustrating a control method of a KVM system according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals are used to denote like elements in the drawings, even if they are shown in different drawings. In addition, when it is determined that the detailed description of the known configuration or function related to the description of the embodiments of the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

2 is a diagram schematically illustrating a KVM system according to an embodiment of the present invention.

2, a KVM system according to an embodiment of the present invention includes a plurality of input / output devices 210, a plurality of KVM receivers 220, a KVM receiver switch 230, a plurality of computers 240, and a plurality of KVM senders. 250, a KVM sender controller 260, and a wired / wireless network 270.

The input / output device 210 includes a keyboard, a video device such as a monitor, a mouse, and the like, and is also called a 'KVM device' after each letter. Such an input / output device 210 may be provided in each guest room of a hotel, a motel, an inn, and the like.

The KVM receiver 220 may be provided in the same number as the input / output device 210, and may be connected to each input / output device 210 to transmit and receive KVM signals with the corresponding input / output device 210. Here, the KVM signal is a control command signal transmitted from the input / output device 210 to the KVM sender 250 to control the computer 240, and accordingly the input / output device 210 as a response signal processed by the computer 240. It includes an output signal for output through.

The KVM receiver 220 may transmit the KVM signal received from the corresponding input / output device 210 to the wired / wireless network 270. In this case, when the KVM receiver 220 transmits a KVM signal to the wired / wireless network 270, the KVM signal may be identified from a KVM signal transmitted from another KVM receiver 220 by using firmware (firmware). An identification number can be assigned to the signal. For example, when a user turns on the corresponding KVM receiver 220 through any one of the plurality of input / output devices 210, the corresponding KVM receiver 220 sets the computer connection request signal accordingly as a KVM signal. The wired and wireless network 270 may be transmitted. In this case, the KVM receiver 220 may identify which input / output device of the plurality of input / output devices 210 is ON by assigning an identification number to the corresponding KVM signal.

The KVM receiver switch 230 is connected to the plurality of KVM receivers 220 and performs a switching operation on the plurality of KVM receivers 220. That is, the KVM receiver switch 230 identifies, from the KVM signal received from each KVM receiver 220, from which KVM receiver 220 the corresponding KVM signal is received based on the identification number assigned to the KVM signal. In addition, the switching operation may be performed such that a path is established with the corresponding KVM receiver 220. In addition, when the KVM receiver switch 230 receives a response signal corresponding to the KVM signal from the wired / wireless network 270, the KVM receiver switch 230 switches the path to the corresponding KVM receiver 220 based on the identification number included in the response signal. You can execute the action.

The plurality of computers 240 may be installed in management rooms of hotels, motels, inns, and the like. In this case, the number of computers 240 need not be the same as the number of input / output devices 210 installed in correspondence with rooms such as hotels, motels, and inns. In general, when a customer of a room such as a hotel, a motel, or an inn wants to use a computer at the same time, the number of computers 240 corresponds to each room because the number of computers 240 is less than 20 percent (%). 20 percent of the number of devices 210 may be provided.

The KVM sender 250 is provided in the same number as the number of computers 240, and is connected to each of the plurality of computers 240 to control the corresponding computer 240. That is, the KVM sender 250 controls ON / OFF of the computer 240 in response to the computer connection request signal or the computer termination request signal, and various kinds of the KVM sender 250 installed in the computer 240 in response to the control command signal. You can run the program.

The KVM sender controller 260 may be connected to the plurality of KVM senders 250, and may determine whether the computer 240 connected to each KVM sender 250 is accessible. To this end, when the use of each computer 240 is terminated, the KVM sender controller 260 receives a computer use termination message from a corresponding KVM sender 250, and the corresponding KVM sender message ( The DIP switch may be stored together with the setting value of the DIP switch of 250, and the accessibility of the corresponding computer 240 may be determined according to whether there is usage information. Here, the dip switch setting value is a value for identifying each KVM sender 250 and refers to a value set by a dip switch installed in each KVM sender 250. The KVM sender controller 260 may identify each KVM sender 250 based on the dip switch setting. Alternatively, the KVM sender 250 may add an identification number to a signal transmitted and received with the corresponding KVM receiver 220 using firmware similarly to the KVM receiver 220.

However, the method of determining whether the computer 240 connected to each KVM sender 250 is connectable is not limited to the disclosed method, and various modified methods may be used. For example, the KVM sender controller 260 measures the strength of the power of the signal received from the corresponding computer 240 through each KVM sender 250 and determines whether the measured signal intensity is greater than or equal to a set value. In accordance with this, it may be determined whether the corresponding computer 240 can be connected. Alternatively, the KVM sender controller 260 determines whether a signal received from the computer 240 through each KVM sender 250 includes a high definition multimedia interface (HDMI) signal, and the corresponding HDMI signal. It may be determined whether or not the corresponding computer 240 can be connected according to the inclusion. Alternatively, the KVM sender controller 260 may determine whether the corresponding computer 240 can be connected depending on whether a DVI signal or an RGB signal is included in the signals transmitted and received with each KVM sender 250. It may be implemented to notify the corresponding KVM sender 250 on / off status information of the computer 240 through an application installed on an OS device such as WINDOWS, Linux, and IOS.

When the KVM sender controller 260 receives a computer connection request signal from at least one of the plurality of KVM receivers 220 through the wired / wireless network 270, the computer 240 determined to be connectable among the plurality of KVM senders 250 is included. The KVM sender 250 corresponding to the KVM receiver switch 230 may be connected to the KVM receiver switch 230 through the wired / wireless network 270. In this case, when it is determined that two or more computers among the plurality of computers 240 are accessible, the KVM sender controller 260 may randomly select one of the two or more computers 240 determined to be accessible, and correspond to the corresponding KVM sender ( 250 may be connected to the KVM receiver switch 230. Alternatively, the KVM sender controller 260 assigns a rank corresponding to each of the plurality of KVM senders 250, and the KVM sender corresponding to the computer having the best rank among two or more computers 240 determined to be accessible. 250 may be selected and connected to the KVM receiver switch 230.

When at least one KVM sender of the plurality of KVM senders 250 is connected to the KVM receiver switch 230, the KVM sender controller 260 changes the computer 240 corresponding to the KVM sender 250 to be inaccessible. shall. Through this, when the KVM sender 250 is connected to the KVM receiver 220 in any one room and the corresponding computer 240 is in use, the KVM sender controller 260 may use the KVM receiver 220 in the other room. When a new computer connection request signal is received from the computer, any one of the remaining computers except the computer in use can be selected and controlled to be used in the corresponding room.

The wired / wireless network 270 connects the KVM receiver switch 230 and the KVM sender controller 260. In this case, the wired / wireless network 270 may be a wired network using UTP or an optical fiber cable, a short range wireless communication network using Bluetooth, Near Field Communication (NFC), Zigbee, or CDMA (Code Division Multiple). A mobile communication network such as Access, Wideband CDMA (WCDMA), and Global System for Mobile communication (GSM) may be used.

3 is a diagram schematically illustrating a configuration of a KVM receiver switch used in the KVM system of FIG. 2.

Referring to FIG. 3, the KVM receiver switch 230 may include a communication unit 232, a KVM receiver identification unit 234, and a switching control unit 236.

The communication unit 232 is connected to the plurality of KVM receivers 220, and may transmit and receive KVM signals with at least one KVM receiver 220.

When the KVM signal is received from at least one KVM receiver of the plurality of KVM receivers 220, the KVM receiver identification unit 234 selects a corresponding KVM receiver 220 based on an identification number included in the received KVM signal. To identify. At this time, the KVM receiver identification unit 234 transmits the KVM signal received from the KVM receiver 220 to the wired / wireless network 270 as it is, including the identification number, so that the KVM sender controller 260 receives the corresponding KVM signal. It is desirable to be able to recognize whether the receiver 220 is through. The identification number is the connection destination or output of the KVM sender 250 when the KVM sender controller 260 connects the KVM sender 250 to the KVM receiver switch 230 or transmits an output signal through the wired / wireless network 270. It is used to inform the destination of the signal output.

The switching controller 236 executes a switching operation with the KVM receiver 220 identified by the KVM receiver identification unit 234. That is, the KVM receiver identification unit 234 identifies the KVM receiver 220 corresponding to the KVM signal received from each KVM receiver 220, and the response signal received through the wired / wireless network 270, and the switching control unit ( 236 performs a switching operation to the corresponding KVM receiver 220 according to the identification result by the KVM receiver identification unit 234.

4 is a diagram schematically illustrating a configuration of a KVM sender controller used in the KVM system of FIG. 2.

Referring to FIG. 4, the KVM sender controller 260 may include a KVM sender communication unit 262, a connectable computer determination unit 264, a wired / wireless network communication unit 266, and a connection unit 268.

The KVM sender communication unit 262 may be connected to the plurality of KVM senders 250, and may transmit and receive a KVM signal with at least one KVM sender among the connected KVM senders 250.

The connectable computer determination unit 264 determines a connectable computer among the plurality of computers 240 connected to each of the KVM senders 250. In this case, the connectable computer determination unit 264 receives the computer use termination message from the KVM sender 250 corresponding to the case where the use of each computer 240 is terminated, and corresponds to the corresponding computer use termination message. By storing the DIP switch setting value of the sender 250 together, it is possible to determine whether the corresponding computer 240 can be connected according to whether there is usage information thereafter.

Alternatively, the connectable computer determination unit 264 measures the strength of the power of the signal received from the corresponding computer 240 through each KVM sender 250, and whether the measured signal intensity is greater than or equal to the set value. In accordance with this, it may be determined whether the corresponding computer 240 can be connected. That is, the power of the signal transmitted / received when the computer 240 is in use is higher than that in the OFF state, so that the connectable computer judgment unit 264 determines that the measured signal intensity is less than or equal to the set value. The computer 240 may be determined to be accessible.

Alternatively, the connectable computer determination unit 264 determines whether an HDMI signal is included in a signal received from the computer 240 through each KVM sender 250, and the corresponding computer according to whether the corresponding HDMI signal is included. It may be determined whether or not 240 is accessible. That is, if the HDMI signal is included in the signal received through the KVM sender 250, the connectable computer determination unit 264 determines that the corresponding computer 240 is currently in use, and if the HDMI signal is not included. It can be determined that the computer 240 corresponding to the connection is accessible.

However, the method of determining whether the computer 240 can be connected is not limited to the disclosed method, and various modifications of the method of determining whether the computer 240 may be executed may be performed.

The wired / wireless network communication unit 266 may transmit and receive a KVM signal with at least one KVM receiver 220 through the wired / wireless network 270. In this case, the wired / wireless network communication unit 266 may identify the corresponding KVM receiver 220 based on the KVM signal received through the wired / wireless network 270, and select the KVM receiver 230 based on the identification number. The response signal can be transmitted.

When the computer connection request signal is received from the at least one KVM receiver 220 through the wired / wireless network communication unit 266, the connection unit 268 is connected to the computer 240 determined to be accessible by the connectable computer determination unit 264. The corresponding KVM sender 250 may be connected to the KVM receiver switch 230, and the computer 240 may be connected to the KVM receiver 220 that transmits the corresponding computer connection request signal by the switching operation of the KVM receiver switch 230. The KVM sender 250 corresponding thereto is connected.

In this case, when it is determined that the at least two computers 240 are accessible by the connectable computer determination unit 264, the connection unit 268 is any KVM among the KVM senders 250 corresponding to the connectable computer 240, respectively. The sender may be selected and connected to the KVM receiver switch 230, or the best KVM sender may be selected and connected to the KVM receiver switch 230 according to the rank given to each KVM sender 250.

5 is a flowchart illustrating a control method of a KVM system according to an exemplary embodiment of the present invention.

2 to 5, the KVM sender controller 260 determines and stores an accessible computer among the plurality of computers 240 connected to the plurality of KVM senders 250 (S510).

When a customer staying in a room such as a hotel, motel, or inn turns on the KVM receiver 220 through the input / output device 210, the KVM receiver 220 transmits a computer connection request signal to the wired / wireless network 270.

When the KVM sender controller 260 receives a computer connection request signal from the at least one KVM receiver 220 (S520), the KVM sender controller 260 selects a KVM sender 250 corresponding to a computer currently determined to be accessible from the plurality of computers 240. Select and connect to the KVM receiver switch 230 (S530). In this case, the KVM receiver switch 230 performs a switching operation to the KVM receiver 220 that has transmitted the computer connection request signal in response to the connection signal of the corresponding KVM sender 250, thereby providing a corresponding input / output device 210 and a computer ( Connection is established.

When there are two or more computers currently determined to be accessible among the plurality of computers 240, the KVM sender controller 260 ranks and stores each of the plurality of KVM senders 250 and stores them in the accessible computer 240. The best KVM sender may be selected according to the rank given from the corresponding KVM sender 250 and connected to the KVM receiver switch 230.

Alternatively, the KVM sender controller 260 selects any KVM sender from among the KVM senders 250 corresponding to the accessible computer 240 and connects the KVM receiver switch 230 so that only a specific computer is used repeatedly. It can also be prevented.

Once the connection between the KVM sender 250 and the KVM receiver 220 is established, the KVM sender controller 260 preferably changes the corresponding computer 240 to an inaccessible state.

Thereafter, when the user turns off the corresponding KVM receiver 220 through the input / output device 210, the corresponding KVM receiver 220 transmits a computer termination request signal to the KVM sender controller 260 through the wired / wireless network 270. . In this case, the KVM sender controller 260 transmits the corresponding computer termination request signal to the corresponding KVM sender 250 so that the KVM sender 250 can turn off the corresponding computer 240 (S560).

When the use of the computer 240 is terminated, the KVM sender 240 may transmit and store the computer termination message to the KVM sender controller 260 (S570). At this time, the KVM sender controller 260 converts the corresponding computer 240 into a computer accessible from an inaccessible computer based on the computer shutdown message received from the KVM sender 250.

6 is a diagram schematically illustrating a KVM system according to another embodiment of the present invention.

Referring to FIG. 6, a KVM system according to another embodiment of the present invention includes a plurality of input / output devices 610, a plurality of KVM receivers 620, a KVM receiver switch 630, a plurality of computers 640, and a plurality of KVMs. The sender 650 includes a KVM sender hub 660 and a wired / wireless network 970.

The input / output device 610 may include a keyboard, a video device such as a monitor, a mouse, and the like, and may be provided in each guest room of a hotel, a motel, an inn, and the like.

The KVM receiver 620 may be provided in the same number as the input / output device 610, and may be connected to each input / output device 610 to transmit and receive KVM signals with the corresponding input / output device 210.

The KVM receiver 620 may transmit the KVM signal received from the corresponding input / output device 210 to the wired / wireless network 670. In this case, when the KVM receiver 620 transmits the KVM signal to the wired / wireless network 670, the KVM signal is identified in the KVM signal using firmware so that the corresponding KVM signal can be identified from the KVM signal transmitted from another KVM receiver 620. Give a number. In addition, when the KVM receiver 620 receives a computer connection request signal through the corresponding input / output device 610, a computer corresponding to each KVM sender 650 connected through the KVM sender hub 660 using the installed firmware. Request connection state information indicating whether or not the connection for 650 is possible. In addition, the KVM receiver 620 receives the accessible state information for the corresponding computer 640 from each KVM sender 650 in response to a request for the accessible state information for each computer 650, and receives the received state information. The computer connection request signal is transmitted to the KVM sender 650 corresponding to the computer 640 that is determined to be accessible among the plurality of KVM senders 650 based on the accessible state information. That is, when a user turns on the corresponding KVM receiver 620 through any one of the plurality of input / output devices 610, the corresponding KVM receiver 620 receives a computer connection request signal from the input / output device 610. Recognizing that the connection status information for each computer 640 to the respective KVM sender 650 connected through the KVM sender hub 660 by operating the installed firmware, and receives the received connectable state information The computer connection request signal is transmitted to the KVM sender 650 corresponding to the computer 640 that is determined to be in an accessible state.

In this case, when it is determined that two or more computers of the plurality of computers 640 are accessible, the KVM receiver 620 may randomly select one or more of the two or more computers 640 that are determined to be accessible, and correspond to the KVM sender 650 corresponding thereto. Send a computer connection request signal. Alternatively, the KVM receiver 620 assigns a rank corresponding to each of the plurality of KVM senders 650, and the KVM sender corresponding to the computer having the best rank among two or more computers 640 that are determined to be accessible. 650 may be selected to transmit a computer connection request signal.

In addition, when the KVM receiver 620 receives a computer termination request signal for the computer 640 being used from the corresponding input / output device 610, the KVM receiver 620 requests a computer request to the KVM sender 650 corresponding to the computer 640 being used. Pass the signal. That is, when the user turns off the KVM receiver 620 through the corresponding input / output device 610 to shut down the computer 640 being used, the corresponding KVM receiver 620 terminates the computer from the input / output device 610. Recognizing that the request signal has been received, and transmits the computer termination request signal to the KVM sender 650 corresponding to the computer 640 in use by driving the firmware.

The KVM receiver switch 630 is connected to the plurality of KVM receivers 620 and performs a switching operation on the plurality of KVM receivers 620. That is, the KVM receiver switch 630 identifies the KVM signal received from each KVM receiver 620 from which KVM receiver 620 the corresponding KVM signal is received based on the identification number assigned to the KVM signal. Then, the switching operation is performed so that a path is established with the corresponding KVM receiver 620. In addition, when the KVM receiver switch 630 receives a response signal corresponding to the KVM signal from the wired / wireless network 670, the KVM receiver switch 630 switches to set the path to the corresponding KVM receiver 620 based on the identification number included in the response signal. Execute the action.

The plurality of computers 640 may be installed in management rooms of hotels, motels, inns, and the like. In this case, the number of computers 640 does not have to be the same as the number of input / output devices 210 installed corresponding to rooms of hotels, motels, inns, and the like.

The KVM sender 650 is provided in the same number as the number of computers 640, and is connected to each of the plurality of computers 640 to control the corresponding computer 640. That is, the KVM sender 650 controls the computer 640 ON / OFF in response to the computer connection request signal or the computer termination request signal, and various kinds of the KVM sender 650 installed in the computer 640 in response to the control command signal. You can run the program. At this time, each KVM sender 650 determines whether the corresponding computer 640 can be connected, and stores the determined result as accessible state information. That is, each KVM sender 650 is a computer use method from the corresponding computer 640 when the corresponding computer 640 is connected to any one input and output device 610 and the use is started or the use is terminated. A support or computer shutdown message may be received and stored, and it may be determined whether or not it is accessible to the corresponding computer 640 based on the stored final message. However, the method of determining whether each KVM sender 650 can connect to the corresponding computer 640 is not limited to the disclosed method, and the above-described various methods of determining whether the connection is possible may be applied.

Each KVM sender 650 receives a request signal for requesting accessibility status information for each computer 640 from at least one KVM receiver 620 through the wired / wireless network 670, and then the corresponding computer 640. (C) transmits the accessible state information about the KVM to the corresponding KVM receiver 620 through the wired / wireless network 670.

In addition, when the KVM sender 650 receives a computer connection request signal from the KVM receiver 620 in response to the accessible state information transmitted through the wired / wireless network 670, the KVM sender 650 drives the corresponding computer accordingly. The connection state information for the computer 640 is switched to being inaccessible. At this time, the KVM sender 650 actively converts the accessible state information to the unreachable state in the ON control of the corresponding computer 640, or receives a computer use message from the driven computer 640, and Accordingly, it is possible to manually change the accessible state information to a non-accessible state. Through this, when the KVM sender 650 is connected to the KVM receiver 620 in one room and the corresponding computer 640 is in use, a new computer connection request signal is received from the KVM receiver 620 in another room. When received, the KVM receiver 620 may control any one of the remaining computers except for the computer in use, to be used in the corresponding cabin.

In addition, when the KVM sender 650 receives the computer termination request signal for the computer 640 being used from the KVM receiver 620 through the wired / wireless network 670, the KVM sender 650 terminates the corresponding computer 640 accordingly. The connection state information for the corresponding computer 640 is switched to being accessible. At this time, the KVM sender 650 actively converts the accessible state information to be connectable at the time of OFF control of the corresponding computer 640, or sends a computer termination message from the corresponding computer 640 to the end point. Can receive and manually convert the accessible status information into an accessible connection accordingly. Through this, when a new computer connection request signal is received from any one of the plurality of KVM receivers 620 in a state in which the use of the computer 640 corresponding to the corresponding KVM sender 650 is terminated, the KVM receiver 620 receives the corresponding signal. The computer 640 corresponding to the KVM sender 650 can be recognized as a usable computer.

The KVM sender hub 660 is connected to the plurality of KVM senders 650 and is connected to the KVM receiver switch 620 through the wired / wireless network 670. Here, the KVM sender hub 660 multiplexes signals received from the plurality of KVM senders 650 and transmits them to the KVM receiver switch 620 through the wired / wireless network 670. The signal transmitted in this way may be demultiplexed by the KVM receiver switch 620.

7 is a diagram schematically showing a configuration of a KVM receiver according to an embodiment of the present invention.

Referring to FIG. 7, the KVM receiver 620 includes a KVM signal receiver 622, a state information receiver 624, and a KVM signal transmitter 626.

The KVM signal receiver 622 connects to an input / output device 610 including a keyboard, a display, and a mouse, and receives a KVM signal including a computer connection request signal from the connected input / output device 610. That is, when the ON control command is received through the corresponding I / O device 610, the KVM signal receiver 622 may recognize the ON control command as a computer connection request signal.

When the computer information request signal is received through the KVM signal receiver 622, the state information receiver 624 determines whether the computer 640 can be connected to each KVM sender 650 connected through the KVM sender hub 660. Request connectable state information, and thus receive connectable state information of the corresponding computer 640 from each KVM sender 650.

The KVM signal transmitter 626 may correspond to the KVM sender 650 corresponding to the computer 640 that is determined to be accessible among the plurality of KVM senders 650 based on the accessible state information received through the state information receiver 624. Transmit the corresponding KVM signal. Through this, the KVM sender 650 turns the corresponding computer 640 on, thereby connecting the corresponding input / output device 610 and the computer 640 to be used by the user.

In this case, when it is determined that two or more computers among the plurality of computers 640 are accessible, the KVM signal transmission unit 626 randomly selects one or more of the two or more computers 640 that are determined to be accessible and corresponds to the KVM sender. The KVM signal may be transmitted to 650. Alternatively, the KVM signal transmission unit 626 gives a rank corresponding to each of the plurality of KVM senders 650, and the KVM corresponding to the computer with the best rank among two or more computers 640 that are determined to be accessible. The sender 650 may be selected to transmit a KVM signal.

8 is a flowchart illustrating a control method of a KVM system according to another embodiment of the present invention.

6 and 8, each KVM sender 650 may determine whether the corresponding computer 640 is accessible, and store the determination result as accessible state information (S810). At this time, each KVM sender 650 receives a computer use message or computer shutdown message from the corresponding computer 640 when the use of the corresponding computer 640 starts or when the computer 640 in use is terminated. The terminal may determine whether the connection is possible based on the last message among the received messages, and store the final message as accessible state information. However, the determination of whether the connection is possible by each KVM sender 650 is not limited to the disclosed method, and the above-described various determination methods may be applied.

When at least one of the plurality of KVM receivers 620 receives a computer connection request signal from the corresponding input / output device 610 (S820), the KVM receiver 620 is connected to each KVM sender through the KVM sender hub 660. Request connection state information of the computer 640 corresponding to 650, and receives the connection state information for the corresponding computer 640 from each KVM sender 650 according to the request (S830).

In this case, when two or more computers of the plurality of computers 640 are accessible in the accessible state information (S840), the KVM receiver 620 may randomly select one of the two or more computers 640 that are determined to be accessible. Alternatively, a KVM sender 650 corresponding to a computer corresponding to the best rank may be selected from two or more computers 640 that are determined to be accessible by assigning a rank corresponding to each of the plurality of KVM senders 650 ( S850).

The KVM receiver 620 transmits a computer connection request signal to the KVM sender 650 corresponding to the computer 640 determined to be accessible among the plurality of KVM senders 650 based on the received accessible state information ( S860).

When the KVM sender 650 receives the computer connection request signal in response to the connection state information of the computer 640 transmitted to the KVM receiver 620, the KVM sender 650 corresponds to the received computer connection request signal. And controls the user to use the computer 640 through the input / output device 610 accordingly. At this time, the KVM sender 650 actively converts the accessible state information to the unreachable state in the ON control of the corresponding computer 640, or receives a computer use message from the driven computer 640, and Accordingly, it is possible to manually switch the accessible state information to the one that cannot be connected (S870).

When the user turns off the corresponding KVM receiver 220 through the input / output device 210 to terminate the computer 640 in use (S880), the corresponding KVM receiver 620 performs an OFF control command. The computer shutdown request signal is recognized and the computer shutdown request signal is transmitted to the KVM sender 650 corresponding to the computer 640 being used through the wired / wireless network 670 (S890).

When the KVM sender 650 receives a computer shutdown request signal for the computer 640 being used from the KVM receiver 620, the KVM sender 650 shuts down the corresponding computer 640 accordingly. At this time, the KVM sender 650 actively converts the accessible state information to be connectable at the time of OFF control of the corresponding computer 640, or sends a computer termination message from the corresponding computer 640 to the end point. It is possible to receive and manually switch the available state information according to the connection (S895).

210, 610: I / O devices 220, 620: KVM receiver
230, 630: KVM Receiver Switches 240, 640: Computer
250, 650: KVM Sender 260: KVM Sender Controller
270, 670: wired and wireless network 660: KVM sender hub

Claims (24)

A plurality of KVM receivers each connected to a plurality of input / output devices;
A KVM receiver switch connected to the plurality of KVM receivers and performing a switching operation for the plurality of KVM receivers;
A plurality of KVM senders, each connected to a plurality of computers, each of which controls a corresponding computer;
It is determined whether a computer connected to a plurality of KVM senders is connected to each of the KVM senders, and when a computer connection request signal is received from at least one of the plurality of KVM receivers, the KVM sender is accessible. A KVM sender controller for connecting a KVM sender corresponding to the determined computer to the KVM receiver switch; And
A wired / wireless network connecting the KVM receiver switch and the KVM sender controller;
KVM system comprising a. The method of claim 1, wherein the KVM sender controller,
And when there are two or more computers that are determined to be accessible among the plurality of computers, selecting a KVM sender from among KVM senders corresponding to the accessible computers and connecting the KVM receiver switch to the KVM receiver switch. The method of claim 1, wherein the KVM sender controller,
A ranking is given to each KVM sender, and when two or more computers are determined to be accessible among the plurality of computers, the KVM sender corresponding to the highest rank is selected from the KVM senders corresponding to the accessible computers, and the KVM is selected. KVM system, characterized in that connected to the receiver switch. The method of claim 1,
Each KVM receiver assigns an identification number using firmware when transmitting KVM signals to the wired or wireless network.
And the KVM receiver switch identifies the corresponding KVM receiver based on the assigned identification number. The method of claim 1, wherein the KVM sender controller,
And identifying each KVM sender based on a DIP switch setting value set in each KVM sender. A plurality of KVM receivers each connected to a plurality of input / output devices;
A KVM receiver switch connected to the plurality of KVM receivers and performing a switching operation for the plurality of KVM receivers;
A plurality of KVM senders, each connected to a plurality of computers, for controlling each of the corresponding computers, determining whether the respective computers are accessible, and storing the result of the determination as accessibility state information;
A KVM sender hub connected to a plurality of KVM senders; And
A wired / wireless network connecting the KVM receiver switch and the KVM sender hub;
/ RTI >
When each KVM receiver receives a computer connection request signal through the corresponding input / output device, each of the KVM receivers receives the connectable state information corresponding thereto from each KVM sender, and based on the received connectable state information, respectively. And transmitting the computer connection request signal to a KVM sender corresponding to a computer determined to be accessible among a plurality of KVM senders. The method of claim 6, wherein each of the KVM receiver,
And when there are two or more computers that are determined to be accessible among the plurality of computers, a KVM sender selects an arbitrary KVM sender corresponding to each of the accessible computers and transmits the computer connection request signal. The method of claim 6, wherein each of the KVM receiver,
A ranking is given to each of the KVM senders, and when two or more computers are determined to be accessible among the plurality of computers, the KVM sender corresponding to the highest ranking is selected from the KVM senders corresponding to the accessible computers. KVM system, characterized in that for transmitting a connection request signal. The method of claim 6, wherein each of the KVM receiver,
And assigning an identification number to the KVM signal including the computer connection request signal using firmware and transmitting the identification number to the corresponding KVM sender. The method of claim 6, wherein each KVM sender,
And when the corresponding respective computers are connected to any one of the plurality of KVM receivers, or when the use of each corresponding computer is terminated, the connectable state information is switched. A communication unit connected to a plurality of KVM receivers;
A KVM receiver identification unit for identifying a corresponding KVM receiver based on an identification number included in the received KVM signal when a KVM signal is received from at least one KVM receiver of a plurality of KVM receivers; And
A switching controller for switching to the identified KVM receiver;
KVM receiver switch comprising a. A KVM sender communication unit connected to a plurality of KVM senders;
A connectable computer determination unit determining a connectable computer among a plurality of computers connected to each of the KVM senders;
A wired / wireless network communication unit for connecting to at least one KVM receiver through a wired / wireless network; And
A connection unit for connecting the KVM sender corresponding to the computer determined to be accessible by the connectable computer determination unit to the KVM receiver when a computer connection request signal is received from the KVM receiver through the wire / wireless communication unit;
KVM Sender controller comprising a. The method of claim 12, wherein the connection portion,
If there is more than one computer determined to be accessible by the connectable computer determining unit, a KVM sender controller which selects an arbitrary KVM sender from among KVM senders corresponding to the connectable computer and connects the KVM receiver to the KVM receiver. . The method of claim 12, wherein the connection portion,
Rank and store each of the KVM senders, and if more than one computer is determined to be accessible by the accessible computer determination unit, select the KVM sender having the highest priority among the KVM senders corresponding to the accessible computers. And a KVM sender controller connected to the KVM receiver. A KVM signal receiver connected to an input / output device including a keyboard, a display, and a mouse, and receiving a KVM signal including a computer connection request signal from the connected input / output device;
When the KVM signal including the computer connection request signal is received through the KVM signal receiver, status information for receiving accessibility status information including accessibility of a corresponding computer from each KVM sender connected through a KVM sender hub. Receiving unit; And
A KVM signal transmission unit for transmitting the KVM signal to a KVM sender corresponding to a computer determined to be accessible among a plurality of KVM senders based on the accessible state information received through the state information receiver;
KVM receiver comprising a. The method of claim 15, wherein the KVM signal transmission unit,
And if more than one computer is determined to be accessible, selects a random KVM sender from the KVM senders corresponding to each of the computers, and transmits the KVM signal. The method of claim 15, wherein the KVM signal transmission unit,
A ranking is assigned to each of the KVM senders, and if there are two or more computers that are determined to be accessible from the plurality of computers, the KVM sender corresponding to the best ranking is selected from the KVM senders corresponding to each of the computers. A KVM receiver characterized by transmitting a signal. A plurality of KVM senders connected to a plurality of computers, a KVM sender controller controlling each of the KVM senders, a plurality of KVM receivers respectively connected to a plurality of input / output devices, and a KVM receiver switch for performing a switching operation for each of the KVM receivers In the control method of the KVM system comprising a wired and wireless network connecting the KVM sender controller and the KVM receiver switch,
Determining, by the KVM sender controller, a accessible computer from among the plurality of computers; And
If the computer connection request signal is received from at least one KVM receiver, connecting the KVM sender corresponding to the computer determined to be accessible from among the KVM senders to the KVM receiver switch;
Control method of the KVM system, characterized in that it comprises a. 19. The method of claim 18,
When the use of the at least one computer is terminated, transmitting and storing a computer shutdown message to the KVM sender by the KVM sender corresponding to the computer;
Control method of the KVM system, characterized in that it further comprises. The method of claim 18, wherein the connecting step,
And when there are two or more computers that are determined to be accessible, selecting a random KVM sender from among KVM senders corresponding to the accessible computers and connecting the KVM receiver to the KVM receiver. The method of claim 18, wherein the connecting step,
Rank and store each of the KVM senders, and if there are two or more computers that are determined to be accessible, select the KVM sender with the highest priority among the KVM senders corresponding to the accessible computers and connect them to the KVM receiver. KVM system control method. A plurality of KVM senders connected to a plurality of computers, a KVM sender hub connected to the plurality of KVM senders, a plurality of KVM receivers respectively connected to a plurality of input / output devices, and a KVM receiver switch for performing a switching operation for each of the KVM receivers; And a wire / wireless network connecting the KVM sender hub and the KVM receiver switch.
Determining, by the KVM sender, whether the KVM sender is accessible to the corresponding computer and storing the result as accessibility state information;
Receiving a computer connection request signal through the input / output device corresponding to at least one of a plurality of KVM receivers;
Receiving, by the KVM receiver receiving the computer connection request signal, the accessible state information from each of the KVM senders connected through the KVM sender hub; And
Transmitting, by the KVM receiver, the computer connection request signal to a KVM sender corresponding to a computer determined to be accessible among the plurality of KVM senders based on the received accessible state information;
Control method of the KVM system, characterized in that it comprises a. 23. The method of claim 22,
Driving the corresponding computer by the KVM sender that has received the computer connection request signal, and converting the stored accessible state information into an inaccessible state;
Control method of the KVM system, characterized in that it further comprises. 23. The method of claim 22,
When the KVM receiver receives the computer termination request signal from the corresponding input / output device, transmitting the computer termination request signal to the KVM sender to which the computer connection request signal is transmitted; And
Terminating the corresponding computer by the KVM sender receiving the computer shutdown request signal, and switching the stored accessible state information;
Control method of the KVM system, characterized in that it further comprises.
KR1020110121410A 2011-11-21 2011-11-21 Kvm system, kvm receiver switch, kvm sender controller and control method for controlling multi-use KR20130055796A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200116281A (en) * 2019-04-01 2020-10-12 주식회사 포디컴 Computer input/output signal asynchronous time division multiplex transmission apparatus and method
KR20210016721A (en) * 2019-08-05 2021-02-17 주식회사 스타리온 digital power generation system
KR20210016722A (en) * 2019-08-05 2021-02-17 주식회사 스타리온 digital power generation automatic voltage regulator system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200116281A (en) * 2019-04-01 2020-10-12 주식회사 포디컴 Computer input/output signal asynchronous time division multiplex transmission apparatus and method
KR20210016721A (en) * 2019-08-05 2021-02-17 주식회사 스타리온 digital power generation system
KR20210016722A (en) * 2019-08-05 2021-02-17 주식회사 스타리온 digital power generation automatic voltage regulator system

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