CN111984218A - Video switching device with series connection function - Google Patents
Video switching device with series connection function Download PDFInfo
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- CN111984218A CN111984218A CN202011042767.2A CN202011042767A CN111984218A CN 111984218 A CN111984218 A CN 111984218A CN 202011042767 A CN202011042767 A CN 202011042767A CN 111984218 A CN111984218 A CN 111984218A
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- Prior art keywords
- video
- cable
- kvm2
- kvm1
- video switch
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- 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
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
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- 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
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- 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a video switching device with a serial connection function, which relates to the technical field of computers and comprises a first video switcher KVM1, a second video switcher KVM2, a mouse, a keyboard, a video cable, a USB data cable and a control signal cable, wherein the first video switcher KVM1 is respectively connected with the second video switcher KVM2 through the video cable, the USB data cable and the control signal cable, the mouse and the keyboard are respectively connected with the second video switcher KVM2, the serial connection of the KVM video switchers is supported, a mode capable of being connected in series can be reserved at the initial design stage, the use of users is more flexible, when interfaces are added, a new KVM video switcher does not need to be purchased, the cost of adding the ports is reduced, and the use flexibility is improved.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a video switching device with a serial connection function.
Background
The port quantity of present KVM video switch is fixed (including 2 port ports, 4 port ports, 8port ports, 16port ports etc.), the KVM video that has different quantity ports switches the price gap great, if will increase 2 port ports on the basis of the KVM video switch of present 8port ports, because the KVM video switch of present 8port ports does not have the function of concatenating, can only realize through the KVM video switch who purchases 16port ports, the cost of increasing the port is higher, the flexibility of using is relatively poor.
Disclosure of Invention
To solve the above-mentioned problems, an embodiment of the present invention provides a video switch apparatus with a serial connection function, the apparatus includes a first video switch KVM1, a second video switch KVM2, a mouse, a keyboard, a video cable, a USB data cable, and a control signal cable, wherein:
the first video switcher KVM1 is connected to the second video switcher KVM2 through the video cable, the USB data cable, and the control signal cable, respectively;
the mouse and the keyboard are connected to the second video switch KVM2, respectively.
Preferably, the first video switcher KVM1 is connected to the display screen of the second video switcher KVM2 through the video cable.
Preferably, the first video switch KVM1 is connected to the USB uplink interface of the second video switch KVM2 via the USB cable.
Preferably, the mouse and the keyboard are connected to the USB downlink interface of the second video switch KVM2 through the USB cable, respectively.
Preferably, the number of port ports of the first video switch KVM1 is the same as the number of port ports of the second video switch KVM 2.
Preferably, the communication protocol between the first video switch KVM1 and the second video switch KVM2 is an asynchronous serial communication protocol or an I2C bus communication protocol.
The video switching device with the tandem connection function provided by the embodiment of the invention has the following beneficial effects:
the serial connection of the KVM is supported, the mode of serial connection can be reserved at the initial design stage, the use of a user is more flexible, when an interface is added, a new KVM does not need to be purchased, the cost of adding a port is reduced, and the use flexibility is improved.
Drawings
FIG. 1 is a schematic diagram of a conventional video switching apparatus;
fig. 2 is a schematic structural diagram of a video switching apparatus with a tandem connection function according to an embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in fig. 2, taking two video switches with four port ports KVM in serial (KVM-1, KVM-2) as an example, the video switch device with serial function provided in the embodiment of the present invention includes a first video switch KVM1, a second video switch KVM2, a mouse, a keyboard, a video cable, a USB data cable, and a control signal cable, wherein:
the first video switch KVM1 is connected to the second video switch KVM2 via a video cable, a USB data cable, and a control signal cable;
the mouse and keyboard are connected to a second video switch KVM2, respectively.
In both the first video switch KVM1 and the second video switch KVM2, a serial video interface and a signal interface for communication are added.
Optionally, the first video switcher KVM1 is connected to the display screen of the second video switcher KVM2 through a video cable.
Optionally, the first video switch KVM1 is connected to the USB uplink interface of the second video switch KVM2 via a USB cable.
Optionally, the mouse and the keyboard are connected to the USB downstream interface of the second video switcher KVM2 through USB cables, respectively.
Alternatively, the number of port ports of the first video switch KVM1 is the same as the number of port ports of the second video switch KVM 2.
Optionally, the communication protocol between the first video switch KVM1 and the second video switch KVM2 is an asynchronous serial communication protocol or an I2C bus communication protocol.
The asynchronous serial communication protocol or the I2C bus communication protocol is used to know which PC the user wants to switch to, the four port ports of the first video switch KVM1 are connected to the PC1, the PC2, the PC3 and the PC4 respectively, and the four port ports of the second video switch KVM2 are connected to the PC5, the PC6, the PC7 and the PC8 respectively.
The video switching device with the serial connection function provided by the embodiment of the invention comprises a first video switch KVM1, a second video switch KVM2, a mouse, a keyboard, a video cable, a USB data cable and a control signal cable, wherein the first video switch KVM1 is respectively connected with the second video switch KVM2 through the video cable, the USB data cable and the control signal cable, the mouse and the keyboard are respectively connected with the second video switch KVM2, and the serial connection of the KVM video switches is supported, so that the serial connection mode can be reserved at the initial design stage, the use of users is more flexible, when an interface is increased, a new KVM video switch does not need to be purchased, the cost of increasing the port is reduced, and the use flexibility is improved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (6)
1. A video switching device with serial connection function, comprising a first video switch KVM1, a second video switch KVM2, a mouse, a keyboard, a video cable, a USB data cable, a control signal cable, wherein:
the first video switcher KVM1 is connected to the second video switcher KVM2 through the video cable, the USB data cable, and the control signal cable, respectively;
the mouse and the keyboard are connected to the second video switch KVM2, respectively.
2. The video switching apparatus with tandem connection function according to claim 1, wherein:
the first video switcher KVM1 is connected to the display screen of the second video switcher KVM2 through the video cable.
3. The video switching apparatus with tandem connection function according to claim 1, wherein:
the first video switch KVM1 is connected to the USB upstream interface of the second video switch KVM2 via the USB cable.
4. The video switching apparatus with tandem connection function according to claim 1, wherein:
the mouse and the keyboard are connected to the USB downlink interface of the second video switch KVM2 through the USB cable, respectively.
5. The video switch with tandem function of claim 1, wherein the number of port ports of the first video switch KVM1 is the same as the number of port ports of the second video switch KVM 2.
6. The video switch with tandem function of claim 1, wherein the communication protocol between the first video switch KVM1 and the second video switch KVM2 is asynchronous serial communication protocol or I2C bus communication protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011042767.2A CN111984218A (en) | 2020-09-28 | 2020-09-28 | Video switching device with series connection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011042767.2A CN111984218A (en) | 2020-09-28 | 2020-09-28 | Video switching device with series connection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111984218A true CN111984218A (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011042767.2A Pending CN111984218A (en) | 2020-09-28 | 2020-09-28 | Video switching device with series connection function |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454340A (en) * | 2000-05-03 | 2003-11-05 | 赛百克斯计算机产品公司 | Network based KVM switching system |
| JP2005018135A (en) * | 2003-06-23 | 2005-01-20 | Nec Computertechno Ltd | Kvm switching unit and kvm switching method |
| CN101221489A (en) * | 2006-12-04 | 2008-07-16 | 宏正自动科技股份有限公司 | Keyboard-video-mouse switch system and switching method thereof |
| CN201886464U (en) * | 2010-10-20 | 2011-06-29 | 深圳市秦安科技有限公司 | KVM centralized control device for centralized control to I/O ports |
| US20130050084A1 (en) * | 2009-11-10 | 2013-02-28 | High Sec Labs Ltd. | Secure kvm system having multiple emulated edid functions |
| US20160117276A1 (en) * | 2014-10-28 | 2016-04-28 | Fujitsu Component Limited | Kvm switch |
-
2020
- 2020-09-28 CN CN202011042767.2A patent/CN111984218A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454340A (en) * | 2000-05-03 | 2003-11-05 | 赛百克斯计算机产品公司 | Network based KVM switching system |
| JP2005018135A (en) * | 2003-06-23 | 2005-01-20 | Nec Computertechno Ltd | Kvm switching unit and kvm switching method |
| CN101221489A (en) * | 2006-12-04 | 2008-07-16 | 宏正自动科技股份有限公司 | Keyboard-video-mouse switch system and switching method thereof |
| US20130050084A1 (en) * | 2009-11-10 | 2013-02-28 | High Sec Labs Ltd. | Secure kvm system having multiple emulated edid functions |
| CN201886464U (en) * | 2010-10-20 | 2011-06-29 | 深圳市秦安科技有限公司 | KVM centralized control device for centralized control to I/O ports |
| US20160117276A1 (en) * | 2014-10-28 | 2016-04-28 | Fujitsu Component Limited | Kvm switch |
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