CN108076083A - A kind of KVM switch long-range control method and system - Google Patents
A kind of KVM switch long-range control method and system Download PDFInfo
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- CN108076083A CN108076083A CN201610989865.4A CN201610989865A CN108076083A CN 108076083 A CN108076083 A CN 108076083A CN 201610989865 A CN201610989865 A CN 201610989865A CN 108076083 A CN108076083 A CN 108076083A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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Abstract
The present invention provides a kind of KVM switch long-range control method and system, the described method includes：The image data for each electric terminal output that KVM switch acquisition is connected in KVM switch and by one by the controlled terminal that internet and a remote master end are communicatively coupled by described image data sending to main control end；The KVM switch simulation USB input equipment handles the keyboard generated by controlled terminal reception main control end or mouse-input signals and keyboard or mouse-input signals is output to corresponding controlled electric terminal；The KVM switch simulation USB input equipment forms a storage device and shows the storage device in being controlled in electric terminal.By the present invention, as long as the network of KVM switch connection can surf the Internet, main control end can then connect the KVM switch in any positions of Internet and control any PC or the server host being connected in KVM switch so that remote access KVM is more convenient.
Description
Technical field
The present invention relates to remote control technology fields, are specially a kind of KVM switch long-range control method and system.
Background technology
KVM is exactly the abbreviation of Keyboard Video Mouse.KVM switch is by being directly connected to keyboard, video and mouse
(KVM) port is marked, you is allowed to be able to access that and control computer.KVM technologies from initial basic SOHO offices type, develop into
For enterprise IT bases computer room facilities management system.It easily can directly be accessed positioned at multiple remote from kvm client-side managements software
The server and equipment of journey position.KVM over IP solutions possess perfect more site failures forwarding functions, meet new clothes
The direct interface of business device administrative standard (IPMI) and the function of media will be locally stored mapping to remote location.KVM products from
Occur to the advanced upgrading and development for having already been through for two generations：
1st, KVM technologies are simulated
Simulation KVM switch system is directly connected to keyboard, video and mouse on arbitrary computer.It provides and is completely independent
In software and the simple plug and play installation system of network operating system, and allow users to visit multiple stage computers in real time
It asks.Simulation KVM is best suited for user and system is in the environment of same position, is to access the more PC of centralization and multi-frame environment
Desirable technique.
2nd, IP-Based KVM switchers solution
IP-Based KVM switchers represent KVM handoff techniques of new generation.The conventional KVM switch of being different from over makes
With method, IP-Based KVM switchers are a digital devices, and the long-range of KVM switcher is connected by existing network
Over-IP is connected to the multiple computers of KVM devices so as to fulfill remote control.Comparative simulation KVM switcher, digital KVM switchings
Device can capture keyboard, display and mouse emulation signal, and be converted into digital signal.Then, these digital signals pass through
Encryption, compression are crossed, can be transmitted in TCP/IP safety in network.The sharpest edges of IP-based KVM switchers are flexibilities.
User directly need not connect KVM switcher with cable or remotely be connected with extender, connect IP-Based KVM switchers
The network port and existing core network, you can by WAN, LAN, internet or in-house network, " whenever and wherever possible " accesses and control
It is connected to all computers of KVM devices.
But when using IP-Based KVM switchers at present, remote operation people needs specifically to know KVM present positions
Network address, and in the scarcities of IP now or KVM present positions in the case of corporate intranet, remotely accessing the KVM will more
It is difficult.
The content of the invention
In view of the foregoing deficiencies of prior art, it is an object of the invention to provide a kind of KVM switch remote controls
Method and system, for solving the problems, such as that prior art remote access KVM is relatively complicated inconvenient.
In order to achieve the above objects and other related objects, the present invention provides a kind of KVM switch, the KVM switch bag
It includes：Controlled terminal is communicatively coupled by internet and a remote master end and carries out remote control by the main control end；Image
Processing module, for gathering the image data of each electric terminal being connected in KVM switch output and passing through the quilt
End is controlled by described image data sending to the main control end；USB simulation process modules, it is logical for simulating USB input equipment processing
It crosses the controlled terminal and receives keyboard or mouse-input signals that the main control end generates and by the keyboard or mouse-input signals
Corresponding controlled electric terminal is output to, and simulates USB input equipment and forms a storage device and in the controlled electric terminal
The interior display storage device.
In one embodiment of the invention, at the Image Data Compression that described image processing module exports each electric terminal
It manages as standard flow medium digital image data, the standard flow medium digital image data is sent to the master by the controlled terminal
Control end.
In one embodiment of the invention, the KVM switch is equipped with defeated for connecting the image of each electric terminal
For the image output interface of external-connection displayer, each electronics is connected for USB device simulation for the image input interface of outlet
The USB input interfaces of the USB output interfaces of equipment, RJ45 interfaces for network connection and the power supply for DC supply input
Input interface.
In one embodiment of the invention, the KVM switch further includes one for signal level coupling and signal filtering
Network transformer.
To achieve the above object, the present invention also provides a kind of KVM switch tele-control system, the KVM switch is remote
Process control system includes main control end and KVM switch as described above.
To achieve the above object, the present invention also provides a kind of KVM switch long-range control method, the KVM switch is remote
Process control method includes：KVM switch acquisition is connected to the image data of each electric terminal output in the KVM switch simultaneously
By one by the controlled terminal that internet and a remote master end are communicatively coupled by described image data sending to the master control
End；The KVM switch simulation USB input equipment processing receives keyboard or the mouse that the main control end generates by the controlled terminal
The keyboard or mouse-input signals are simultaneously output to corresponding controlled electric terminal by mark input signal；The KVM switch mould
Intend USB input equipment and form a storage device and in showing the storage device in the controlled electric terminal.
In one embodiment of the invention, each electronics that the KVM switch acquisition is connected in the KVM switch is whole
Hold the image data of output and by one by the controlled terminal that internet and a remote master end are communicatively coupled by described image
Data sending is into the main control end：The Image Data Compression processing that the KVM switch exports each electric terminal is standard
The standard flow medium digital image data is sent to the main control end by flow medium digital image data, the controlled terminal.
In one embodiment of the invention, the KVM switch includes defeated for connecting the image of each electric terminal
For the image output interface of external-connection displayer, each electronics is connected for USB device simulation for the image input interface of outlet
The USB input interfaces of the USB output interfaces of equipment, RJ45 interfaces for network connection and the power supply for DC supply input
Input interface.
In one embodiment of the invention, the KVM switch includes one for signal level coupling and signal filtering
Network transformer.
In one embodiment of the invention, the main control end is interacted with the controlled terminal by webpage and with tabular form exhibition
Show the controlled terminal for being successfully established connection.
As described above, a kind of KVM switch long-range control method and system of the present invention, have the advantages that：
1st, by the present invention, as long as the network of KVM switch connection can surf the Internet, main control end then can be any in Internet
Position connects the KVM switch and controls any PC or the server host being connected in KVM switch, so the present invention is not
Need specifically to know the network address of KVM present positions so that remote access KVM is more convenient.
2nd, the present invention is easy to operate, effectively increases the experience of user, and practicability is high.
Description of the drawings
Fig. 1 is shown as the flow diagram of the KVM switch long-range control method of the present invention.
Fig. 2 is shown as the functional block diagram of the KVM switch tele-control system of the present invention.
Fig. 3 is shown as the principle schematic of the KVM switch of the present invention.
Component label instructions
100 KVM switch tele-control systems
110 KVM switch
111 USB simulation process modules
112 image processing modules
113 controlled terminals
114 image input interfaces
115 image output interfaces
116 RJ45 interfaces
117 USB input interfaces
118 power input interfaces
120 main control ends
S101~S103 steps
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
The present embodiment is designed to provide a kind of KVM switch long-range control method and system, for solving existing skill
The problem of art remote access KVM is relatively complicated inconvenient.A kind of KVM switch of the present embodiment described in detail below is remotely controlled
The principle and embodiment of method and system processed makes those skilled in the art that creative work is not required to be appreciated that the present embodiment
A kind of KVM switch long-range control method and system.
The KVM switch long-range control method and system of the present embodiment be applied to network environment in, such as local area network or
Person's Wide Area Network etc. in an embodiment of the present invention, provides main control end and the controlled terminal with its network connection, the main control end
For example, PC or mobile terminal (mobile phone or tablet computer), the main control end have display function, after being realized so as to main control end
The continuous control to controlled terminal, the controlled terminal can real-time display in the webpage of the web browser run in main control end.It is described
Main control end remote control can face to realize that Intranet penetrates under various complex network environments, can be by browser to being remotely controlled
Service, process, user and the file at end etc. are managed.
Specifically, as shown in Figure 1, the present embodiment provides a kind of KVM switch long-range control method, the KVM switch
Long-range control method comprises the following steps：
Step S101, KVM switch acquisition are connected to the image data of each electric terminal output in the KVM switch
And by one by the controlled terminal that internet and a remote master end are communicatively coupled by described image data sending to the master
Control end.I.e. in this present embodiment, in installing controlled terminal in KVM switch in advance, the controlled terminal passes through internet and long-range master
Control end is communicatively coupled, and carries out remote control by the remote master end.Wherein, in this present embodiment, the main control end
The controlled terminal being connected is successfully established by webpage with controlled terminal interaction and with tabular form displaying.
As long as the network of KVM switch connection can surf the Internet, main control end then can connect the KVM in any positions of Internet
Interchanger simultaneously controls and is connected to any PC or server host in KVM switch, so the present invention and need not specifically know
The network address of KVM present positions so that remote access KVM is more convenient.
Specifically, in this present embodiment, each electronics that the KVM switch acquisition is connected in the KVM switch is whole
Hold the image data of output and by one by the controlled terminal that internet and a remote master end are communicatively coupled by described image
Data sending is into the main control end：The Image Data Compression processing that the KVM switch exports each electric terminal is standard
The standard flow medium digital image data is sent to the main control end by flow medium digital image data, the controlled terminal.
Specifically, the KVM switch gathers the picture number that for example PC ends export using special chip from VGA or HDMI
According to, and standard streaming media image data (H264) are compressed data into using another piece of special chip, while according to the band of both sides
Wide situation can dynamically adjust code check to provide higher image fluency.
Step S102, the KVM switch simulation USB input equipment processing receive the main control end by the controlled terminal
The keyboard or mouse-input signals are simultaneously output to corresponding controlled electric terminal by the keyboard or mouse-input signals of generation.
Specifically, in this present embodiment, the KVM switch is simulated itself by special chip and is inputted for keyboard/mouse
Equipment, the input through keyboard that remote master end is generated or mouse input are injected into final controlled computer by special chip
It is interior.
Step S103, the KVM switch simulation USB input equipment formed a storage device and in the controlled electronics ends
The display storage device in end.
Specifically, in this present embodiment, the KVM switch is by simulating USB from storage device (USB flash disk) so that final
Controlled computer capacity sees a USB flash disk, and exchange files are carried out so as to fulfill remote installation system or with final operating system
Deng operation.Data appear to be real in computer in the simulation USB flash disk and content can remotely add modification and delete.
In this present embodiment, the KVM switch includes connecting the figure of the output end of image of each electric terminal
As input interface, for the image output interface of external-connection displayer, each electronic equipment is connected for USB device simulation
The USB input interfaces of USB output interfaces, RJ45 interfaces for network connection and the power input for DC supply input connect
Mouthful.
In embodiment, the KVM switch further includes a network transformation for signal level coupling and signal filtering
Device.
As shown in Fig. 2, corresponding with above method embodiment be, the present embodiment provides a kind of KVM switch remote controls
System 100, the KVM switch tele-control system 100 include main control end 120 and are equiped with the KVM switch of controlled terminal 113
110。
Wherein, as shown in Figures 2 and 3, in this present embodiment, the KVM switch 110 includes：USB simulation process modules
111, image processing module 112 and controlled terminal 113.
Specifically, in this present embodiment, the controlled terminal 113 is communicated by internet with a remote master end 120
It connects and remote control is carried out by the main control end 120.As shown in figure 3, the controlled terminal 113 is stored in KVM switch 110
On memory, supported and run by CPU/RAM/ROM.I.e. in this present embodiment, in installing is controlled in advance in KVM switch 110
End 113, the controlled terminal 113 is communicatively coupled by internet and remote master end 120, and by the remote master end
120 carry out remote control.Wherein, in this present embodiment, the main control end 120 is interacted simultaneously by webpage with the controlled terminal 113
The controlled terminal 113 of connection is successfully established with tabular form displaying.
As long as the network that KVM switch 110 connects can surf the Internet, main control end 120 can then connect in any positions of Internet
The upper KVM switch 110 simultaneously controls any PC or the server host being connected in KVM switch 110, so the present invention is not
Need specifically to know the network address of KVM present positions so that remote access KVM is more convenient.
Specifically, in this present embodiment, described image processing module 112 is connected to the KVM switch 110 for gathering
On the output of each electric terminal image data and by the controlled terminal 113 by described image data sending to the main control end
120。
Specifically, in this present embodiment, described image processing module 112 (the image process i.e. shown in Fig. 3) will
The Image Data Compression processing of each electric terminal output is standard flow medium digital image data, and the controlled terminal 113 is by described in
Standard flow medium digital image data is sent to the main control end 120.
As shown in figure 3, specifically, the KVM switch 110 gathers such as PC ends using special chip from VGA or HDMI
The image data of output, to image data carry out A/D conversion process, using VNC (Virtual Network Console, virtually
Net control station) image is handled, and compress data into standard streaming media image data using another piece of special chip
(H264), code check can dynamically while according to the bandwidth situation of both sides be adjusted to provide higher image fluency.
Specifically, in this present embodiment, the USB simulation process module 111 (the USB process i.e. shown in Fig. 3)
The keyboard of the generation of main control end 120 is received for simulating USB input equipment (USB SoC) processing by the controlled terminal 113
(keyboard) or mouse (Mouse) input signal and the keyboard or mouse-input signals are output to corresponding controlled electronics
Terminal, and simulate USB input equipment and form a storage device and in showing the storage device in the controlled electric terminal.
Specifically, in this present embodiment, it itself is that keyboard/mouse is defeated that the KVM switch 110 is simulated by special chip
Enter equipment, input through keyboard or the mouse input that remote master end 120 is generated are injected into final controlled by special chip
In computer.
Specifically, in this present embodiment, the KVM switch 110 is by simulating USB from storage device (USB flash disk) so that most
Controlled computer capacity sees a USB flash disk eventually, and file friendship is carried out so as to fulfill remote installation system or with final operating system
The operations such as change.Data appear to be real in computer in the simulation USB flash disk and content can remotely add modification and delete.
In this present embodiment, as shown in Figures 2 and 3, the KVM switch 110 is equipped with to connect each electronics end
The image input interface 114 (the VGA IN shown in Fig. 3) of the output end of image at end connects for the image output of external-connection displayer
115 (the VGA OUT shown in Fig. 3) of mouth connect the USB of the USB output interfaces of each electronic equipment for USB device simulation
Input interface 117 (USB shown in Fig. 3), RJ45 interfaces 116 (RJ45 shown in Fig. 3) for network connection and confession
The power input interface 118 (the POWER IN shown in Fig. 3) of DC supply input.
In one embodiment of the invention, the KVM switch 110 further includes one for signal level coupling and signal filter
The network transformer (PHY shown in Fig. 3) of ripple.
In conclusion by the present invention, as long as the network of KVM switch connection can surf the Internet, main control end then can be
Any positions of Internet connect the KVM switch and control any PC or the server host being connected in KVM switch, institute
It need not know with the present invention and specifically the network address of KVM present positions so that remote access KVM is more convenient；The present invention
It is easy to operate, the experience of user is effectively increased, practicability is high.So the present invention effectively overcome it is of the prior art a variety of
Shortcoming and have high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of KVM switch, it is characterised in that：The KVM switch includes：
Controlled terminal is communicatively coupled by internet and a remote master end and carries out remote control by the main control end；
Image processing module, for gathering the image data of each electric terminal being connected in KVM switch output and leading to
The controlled terminal is crossed by described image data sending to the main control end；
USB simulation process modules receive what the main control end generated for simulating USB input equipment processing by the controlled terminal
The keyboard or mouse-input signals are simultaneously output to corresponding controlled electric terminal by keyboard or mouse-input signals, and are simulated
USB input equipment forms a storage device and in showing the storage device in the controlled electric terminal.
2. KVM switch according to claim 1, it is characterised in that：Described image processing module is defeated by each electric terminal
The Image Data Compression processing gone out is standard flow medium digital image data, and the controlled terminal is by the standard flow medium digital figure
As data sending to the main control end.
3. KVM switch according to claim 1, it is characterised in that：The KVM switch is equipped with to connect each described
The image input interface of the output end of image of electric terminal, for the image output interface of external-connection displayer, for USB device mould
Intend connecting the USB input interfaces of the USB output interfaces of each electronic equipment, RJ45 interfaces for network connection and confession are straight
Flow the power input interface of power input.
4. KVM switch according to claim 3, it is characterised in that：The KVM switch further includes one for signal electricity
Flat coupling and the network transformer of signal filtering.
5. a kind of KVM switch tele-control system, it is characterised in that：The KVM switch tele-control system includes master control
End and the KVM switch as described in claim 1 to 4 any claim of claims.
6. a kind of KVM switch long-range control method, it is characterised in that：The KVM switch long-range control method includes：
KVM switch acquisition is connected to the image data of each electric terminal output in the KVM switch and by one by mutual
The controlled terminal that networking is communicatively coupled with a remote master end is by described image data sending to the main control end；
KVM switch simulation USB input equipment processing by the controlled terminal receive the main control end generation keyboard or
The keyboard or mouse-input signals are simultaneously output to corresponding controlled electric terminal by mouse-input signals；
The KVM switch simulation USB input equipment forms a storage device and in described in display in the controlled electric terminal
Storage device.
7. KVM switch long-range control method according to claim 6, it is characterised in that：The KVM switch acquisition connects
Be connected to the image data of each electric terminal output in the KVM switch and by one by internet and a remote master end into
The controlled terminal of row communication connection is by described image data sending into the main control end：The KVM switch is by each electric terminal
The Image Data Compression processing of output is standard flow medium digital image data, and the controlled terminal is by the standard flow medium digital
Image data is sent to the main control end.
8. KVM switch long-range control method according to claim 6, it is characterised in that：The KVM switch includes using
In the image input interface for the output end of image for connecting each electric terminal, for the image output interface of external-connection displayer,
The USB input interfaces of the USB output interfaces of each electronic equipment are connected for USB device simulation, it is for network connection
RJ45 interfaces and the power input interface for DC supply input.
9. KVM switch long-range control method according to claim 8, it is characterised in that：The KVM switch includes one
For the network transformer of signal level coupling and signal filtering.
10. KVM switch long-range control method according to claim 6, it is characterised in that：The main control end passes through webpage
The controlled terminal being connected is successfully established with controlled terminal interaction and with tabular form displaying.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989865.4A CN108076083A (en) | 2016-11-10 | 2016-11-10 | A kind of KVM switch long-range control method and system |
| CN202111537484.XA CN114268618A (en) | 2016-11-10 | 2016-11-10 | KVM switch remote control system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989865.4A CN108076083A (en) | 2016-11-10 | 2016-11-10 | A kind of KVM switch long-range control method and system |
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|---|---|---|---|
| CN202111537484.XA Division CN114268618A (en) | 2016-11-10 | 2016-11-10 | KVM switch remote control system and method |
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| CN108076083A true CN108076083A (en) | 2018-05-25 |
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| CN201610989865.4A Pending CN108076083A (en) | 2016-11-10 | 2016-11-10 | A kind of KVM switch long-range control method and system |
| CN202111537484.XA Pending CN114268618A (en) | 2016-11-10 | 2016-11-10 | KVM switch remote control system and method |
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| CN109283910A (en) * | 2018-11-26 | 2019-01-29 | 上海哥瑞利软件有限公司 | A kind of KVM tele-control system |
| CN110071827A (en) * | 2019-04-09 | 2019-07-30 | 山东超越数控电子股份有限公司 | A kind of realization networking KVM terminal and system |
| CN110109623A (en) * | 2019-04-30 | 2019-08-09 | 广州长图量传电子科技有限公司 | A kind of implementation method of the USB flash disk remote operation of kvm system |
| CN112437112A (en) * | 2020-10-14 | 2021-03-02 | 中国气象局气象探测中心 | Wireless KVM control system |
| CN113835534A (en) * | 2021-08-16 | 2021-12-24 | 中国地质大学（武汉） | KVM system with virtual USB flash disk function |
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