CN106990854B - System and method for realizing KVM _ OVER _ IP by servers without display - Google Patents

System and method for realizing KVM _ OVER _ IP by servers without display Download PDF

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Publication number
CN106990854B
CN106990854B CN201710186466.9A CN201710186466A CN106990854B CN 106990854 B CN106990854 B CN 106990854B CN 201710186466 A CN201710186466 A CN 201710186466A CN 106990854 B CN106990854 B CN 106990854B
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Prior art keywords
display
server
kvm
mainboard
vga
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CN201710186466.9A
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CN106990854A (en
Inventor
刘强
金长新
于治楼
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Shandong Inspur Science Research Institute Co Ltd
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Tidal Group Co Ltd
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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
    • 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
    • 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
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay

Abstract

The invention relates to the technical field of server application, in particular to a system and a method for realizing KVM OVER IP by servers without displays, wherein the structure of the system comprises a server mainboard, the side of the server mainboard is connected with a display, the other side of the server mainboard is connected with a remote PC (personal computer) through a KVM switch with a remote management function, a display card on the server mainboard is respectively connected with a resistance matching network through a VGA (video graphics array) signal switch and is connected with an EEPROM (electrically erasable programmable read only memory) chip through an I2C bus switch, the EEPROM chip stores EDID (extended display identification) information of the display, the display card is connected with a physical layer through an AD (analog to digital) chip and a BMC (baseboard management controller) chip, and the physical layer is connected with the KVM switch.

Description

System and method for realizing KVM _ OVER _ IP by servers without display
Technical Field
The invention relates to the technical field of server application, in particular to a system and a method for realizing KVM OVERIP by servers without a display.
Background
The KVM OVER IP is also called IP KVM, namely a KVM switcher with remote management function, wherein KVM is an abbreviation of Keyboard, display and Mouse (Keyboard, Video and Mouse), namely groups of Keyboard, display and Mouse, and controls a plurality of computers.
In a server product, because the server is used in different scenes, in some cases, the server is required to be operated remotely without connecting a display locally, which requires that a display card on a server motherboard still outputs when the display is not connected locally, otherwise, a remote KVM OVER IP cannot be displayed when the display is not connected locally, currently, many servers use a BMC (Baseboard Management Controller) as a display card to execute a server remote Management Controller, but some servers need to be onboard with an independent display card and externally connected with an AD chip because of high requirements on display performance, so that local display can be realized, and a KVM OVER IP function can be realized after the AD chip is connected to the BMC chip, but because a VGA display channel of the independent display card usually needs to detect whether the VGA display is connected to determine whether to output a VGA signal, when the local is not connected with the VGA display, the VGA signal is not output, so that the KVM OVER IP display cannot be realized remotely.
Disclosure of Invention
In order to solve the problems of the prior art, the invention provides a system and a method for realizing KVM OVER IP by servers without displays, which can realize that the functions of KVMOVER IP can be still completed when a local display is not connected in an independent display card server mainboard.
The technical scheme adopted by the invention is as follows:
A system for realizing KVM OVER IP by a server without a display comprises a server mainboard, wherein the server mainboard side is connected with the display, the side is connected with a remote PC through a KVM switch with a remote management function, a display card on the server mainboard is respectively connected with a resistance matching network through a VGA signal switch and is connected with an EEPROM chip through an I2C bus switch, the EEPROM chip stores EDID information of the display, the display card is connected with a physical layer through an AD chip and a BMC chip, and the physical layer is connected with the KVM switch.
The display card is AMD embedded DX11 display card Raedeon E6460.
The EEPROM chip is AT24C 02.
A method for realizing KVM OVER IP without display of servers includes designing VGA signal switches on a server mainboard, designing EEPROM chips for storing EDID information of the displays, selecting ground signals in VGA display interfaces as switching judgment signals, switching the switching signals on the mainboard to be high level when the displays are not connected, switching an I2C bus for reading the EDID information to the EEPROM on the mainboard for storing the EDID information, switching the VGA signals to a resistance matching network on the mainboard simultaneously, and simulating the situation of connecting the VGA displays.
When the display is connected, the VGA and I2C bus switch is closed, the display card reads the information of the display to normally realize VGA display, and the remote end can also normally realize KVM OVER IP function at the moment.
The technical scheme provided by the invention has the beneficial effects that:
the server mainboard adopting the independent display card can normally work no matter whether the server mainboard is connected with a display or not through a hardware circuit design, so that the application range of the KVM OVER IP function is expanded, and convenience is brought to users.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a system block diagram of server display-less KVM OVER IP system and method according to the present invention;
FIG. 2 is a block diagram of a system implementation of servers without display for implementing KVM OVER IP.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further with reference to the accompanying drawings.
Example
The server display-free KVM IP system comprises a server mainboard, wherein the server mainboard side is connected with a display, the side is connected with a remote PC through a KVM switch with a remote management function, a display card on the server mainboard is respectively connected with a resistance matching network through a VGA signal switch and is connected with an EEPROM chip through an I2C bus switch, the EEPROM chip stores EDID information of the display, the display card is connected with a physical layer through an AD chip and a BMC chip, and the physical layer is connected with the KVM switch.
As shown in fig. 2, a server motherboard of an onboard E6460 graphics card is adopted, in order to realize the remote KVM OVER IP function under the condition that the server is not connected with the display, an AT24C02 EEPROM chip is designed on the motherboard, pieces of basic display EDID configuration information are stored inside the motherboard, and a VGA switching circuit is designed AT the same time, when the display is not connected, the switching circuit is switched to an AT24C02 and VGA impedance matching circuit for simulating the condition of connecting the display, when the display is connected, the circuit is switched to the display, the graphics card reads the configuration information of the display, thereby realizing the remote KVM OVER IP function no matter whether the display is connected locally or not.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (5)

  1. The system for realizing the KVM OVER IP by the server without the display comprises a server mainboard, wherein a side of the server mainboard is connected with the display, and another side of the server mainboard is connected with a remote PC through a KVM switch with a remote management function.
  2. 2. The server monitor-less KVM IP system of claim 1 wherein the display card is AMD embedded DX11 display card Raeden E6460.
  3. 3. The server monitor-less KVM IP system of claim 1 wherein the EEPROM chip is AT24C 02.
  4. 4, method for realizing KVM OVER IP without display of server, characterized in that, VGA signal change-OVER switches are designed on the mainboard of the server, EEPROM chips for storing EDID information of the display are designed, ground signals in the interface of the VGA display are selected as switching judgment signals, the switching signals on the mainboard are high level when the display is not connected, the I2C bus for reading the EDID information is switched to the EEPROM for storing the EDID information on the mainboard, and the VGA signals are switched to the resistance matching network on the mainboard to simulate the situation of connecting the VGA display.
  5. 5. The method for realizing KVM OVER IP without display of server of claim 4, wherein when the display is connected, the VGA and I2C bus switch is turned off, the display card reads the information of the display to normally realize VGA display, and the remote end normally realizes KVM OVER IP function.
CN201710186466.9A 2017-03-24 2017-03-24 System and method for realizing KVM _ OVER _ IP by servers without display Active CN106990854B (en)

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Application Number Priority Date Filing Date Title
CN201710186466.9A CN106990854B (en) 2017-03-24 2017-03-24 System and method for realizing KVM _ OVER _ IP by servers without display

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Application Number Priority Date Filing Date Title
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110865958B (en) * 2019-11-19 2021-05-18 北京计算机技术及应用研究所 LRM-based integrated switching management module design method
CN111104084A (en) * 2019-12-24 2020-05-05 研祥智能科技股份有限公司 Industrial personal computer mainboard and industrial personal computer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102158682A (en) * 2011-04-22 2011-08-17 杭州比特瑞旺电脑有限公司 Method for realizing multiple physical access channels in KVM (Keyboard, Video and Mouse)-OVER-IP (Internet Protocol)
CN202120214U (en) * 2011-06-27 2012-01-18 浪潮电子信息产业股份有限公司 KVM for implementing remote control
CN102364904A (en) * 2011-06-27 2012-02-29 浪潮电子信息产业股份有限公司 Method capable of realizing simultaneous KVM-OVER-IP (Keyboard-Video-Mouse-OVER-Internet Protocol) of multi-channel CPCI (Compact Peripheral Component Interconnect) blade servers

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080184320A1 (en) * 2007-01-25 2008-07-31 Tony Lou TVOD Processing Device And Computer KVM Switch Thereof
US20080309584A1 (en) * 2007-06-12 2008-12-18 Aten International Co., Ltd. Video extender devices capable of providing edid of a display to a computer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102158682A (en) * 2011-04-22 2011-08-17 杭州比特瑞旺电脑有限公司 Method for realizing multiple physical access channels in KVM (Keyboard, Video and Mouse)-OVER-IP (Internet Protocol)
CN202120214U (en) * 2011-06-27 2012-01-18 浪潮电子信息产业股份有限公司 KVM for implementing remote control
CN102364904A (en) * 2011-06-27 2012-02-29 浪潮电子信息产业股份有限公司 Method capable of realizing simultaneous KVM-OVER-IP (Keyboard-Video-Mouse-OVER-Internet Protocol) of multi-channel CPCI (Compact Peripheral Component Interconnect) blade servers

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Effective date of registration: 20191218

Address after: 250100 Ji'nan high tech Zone, Shandong, No. 1036 wave road

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Address before: 250100, Ji'nan province high tech Zone, Sun Village Branch Road, No. 2877, building, floor, building, on the first floor

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Address after: 250000 building S02, No. 1036, Langchao Road, high tech Zone, Jinan City, Shandong Province

Patentee after: Shandong Inspur Scientific Research Institute Co.,Ltd.

Address before: No. 1036, Shandong high tech Zone wave road, Ji'nan, Shandong

Patentee before: INSPUR GROUP Co.,Ltd.