CN103076888B - A kind of method that USB keyboard calls OSD switching channels in KVM equipment and the equipment - Google Patents
A kind of method that USB keyboard calls OSD switching channels in KVM equipment and the equipment Download PDFInfo
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- CN103076888B CN103076888B CN201310005349.XA CN201310005349A CN103076888B CN 103076888 B CN103076888 B CN 103076888B CN 201310005349 A CN201310005349 A CN 201310005349A CN 103076888 B CN103076888 B CN 103076888B
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Abstract
The method that USB keyboard calls OSD switching channels in a kind of present invention KVM equipment of offer and the equipment, the structure of the equipment includes switch unit and OSD unit, OSD unit is connected with USB keyboard by input interface, display is connected with by output interface, above-mentioned OSD unit is also connected with current channel computer by switch unit；The method is by receiving by the initialization of the USB key disc apparatus of OSD unit module and accurately from USB keyboard button valid data each time, complete the synchronization process of the switching of OSD images and the switching of physical connection passage, in a kind of KVM equipment and the equipment, compared to the prior art USB keyboard calls the method for OSD switching channels, easy, flexible, visualization, thus have good value for applications.
Description
Technical field
The present invention relates to a kind of field of computer technology, USB key in specifically a kind of KVM equipment and the KVM equipment
The method that disk calls OSD switching channels.
Background technology
With the development of computer technology, the high-efficiency management of cluster computer is particularly important, KVM technologies meet the tendency of and
It is raw.In recent years, the progress of KVM technologies so that KVM equipment upper keyboards, mouse, display are not only as simple basic input
Outut device, can also derive other functions for convenience of cluster computer management, and such as display is gone back in addition to basic output display
The each channel statuses of KVM, current channel number etc. can be shown by OSD menu, keyboard can be with except basic key assignments input function
Select and switching channel, this patent is exactly a kind of method that USB keyboard calls OSD switching channels in KVM equipment.
The content of the invention
The technical assignment of the present invention is to solve the deficiencies in the prior art, there is provided a kind of simple structure, initial by USB keyboard
Change the method that the KVM equipment and USB keyboard accurately received and dispatched with data calls OSD switching channels.
The technical scheme is that what is realized in the following manner, a kind of KVM equipment, its structure include current channel meter
Calculation machine, KVM equipment, USB keyboard and display, are provided with switch unit and OSD unit in the KVM equipment, and OSD unit passes through
Input interface is connected with USB keyboard, is connected with display by output interface, and above-mentioned OSD unit is also connected by switch unit
There is current channel computer.
The OSD unit includes that MCU controllers, OSD produce chip, HID interface chips, RGB chip superposeds, input interface
And output interface, wherein input interface is the keyboard interface of USB HID protocol standards, and HID interface chips are by the input interface
Connection USB keyboard, the HID interface chips are also associated with MCU controllers the transmitting-receiving for completing usb data；The output
Interface is USB interface, and MCU controllers order produces chip, RGB chip superposeds by OSD and connects the USB interface, and above-mentioned MCU is controlled
Device processed and OSD are produced and are connected by I2C buses between chip.
The switch unit connects the MCU controllers of above-mentioned OSD unit and receives the passage switching letter that MCU controllers send
Number, receive and dispatch its USB keyboard signal for sending；It is current that the switch unit is also associated with current channel computer and receives and dispatches which sends
USB keyboard signal, receive its current rgb signal for sending；Switch unit also sends computer rgb signal and gives RGB chip superposeds.
A kind of method that USB keyboard calls OSD switching channels in KVM equipment, its specific implementation step is：
1）Initialization is completed by MCU controllers；
2) after the completion of the initialization of MCU controllers, USB keyboard connection is detected the presence of, when connection is detected, initializes USB key
Disk；
3）IN bags are actively sent after completing USB keyboard initialization and obtains the button data from keyboard：When get by
Key data be self-defined OSD image processing commands when, send OSD operation signals control image change, i.e., according to keyboard commands at
Reason OSD menu images, while sending handover information to switch unit, the synchronism switching for completing graphical interfaces with physical connection is moved
Make；If the keyboard data for obtaining is not OSD operational orders, button data information is sent to current logical again with usb data form
Then road computer repeats above-mentioned action.
In above-mentioned implementation steps, when computer has keyboard light data output, MCU controllers will also receive keyboard light number
Keyboard light status display is realized to USB keyboard according to simultaneously adverse transference.
The produced compared with prior art beneficial effect of the present invention is：
A kind of KVM equipment and USB keyboard of the present invention calls the method for OSD switching channels by the USB of OSD unit module
Keyboard equipment is initialized and is accurately received from USB keyboard button valid data each time, is completed the switching of OSD images and is connected with physics
The synchronization process of road switching is connected, whole operation process is easy, flexible, visualization, thus has good value for applications.
Description of the drawings
Accompanying drawing 1 is the structural schematic block diagram of the present invention.
Accompanying drawing 2 is the workflow schematic diagram of the present invention.
Labelling in accompanying drawing is represented respectively：
1st, current channel computer, 2, KVM equipment, 2.1, switch unit, 2.2, OSD unit, 2.21, MCU controllers,
2.22nd, HID interface chips, 2.23, OSD produce chip, 2.24, RGB chip superposeds, 3, USB keyboard, 4, display.
Specific embodiment
Call the side of OSD switching channels below in conjunction with the accompanying drawings to USB keyboard in a kind of KVM equipment and the equipment of the present invention
Method is described in detail below.
As shown in Figure 1, a kind of KVM equipment, its structure include current channel computer 1, KVM equipment 2, USB keyboard 3
With display 4, switch unit 2.1 and OSD unit 2.2 in the KVM equipment 2, are provided with, OSD unit 2.2 passes through input interface
USB keyboard 3 is connected with, display 4 is connected with by output interface, above-mentioned OSD unit 2.2 is also connected by switch unit 2.1
There is current channel computer 1.
The OSD unit 2.2 includes that MCU controllers 2.21, OSD produce chip 2.23, HID interface chips 2.22, RGB and fold
The keyboard interface of concrete-cored 2.24, input interface and output interface, wherein input interface for USB HID protocol standards, HID interfaces
Chip 2.22 connects USB keyboard by the input interface, and the HID interface chips 2.22 are also associated with MCU controllers 2.21 simultaneously
For completing the transmitting-receiving of usb data；The output interface is USB interface, and 2.21 order of MCU controllers produces chip by OSD
2.23rd, RGB chip superposeds 2.24 connect the USB interface, and above-mentioned MCU controllers 2.21 and OSD are produced and passed through between chip 2.23
I2C buses connect.
The switch unit 2.1 connects the MCU controllers 2.21 of above-mentioned OSD unit 2.2 and receives MCU controllers 2.21
The channel switching signal that goes out, receive and dispatch its USB keyboard signal for sending；The switch unit 2.1 is also associated with current channel computer 1
And receive and dispatch current USB keyboard signal which sends, receive its current rgb signal for sending；Switch unit 2.1 also sends computer
Rgb signal is to RGB chip superposeds 2.24.
As shown in Figure 2, a kind of method that USB keyboard calls OSD switching channels in KVM equipment, its specific implementation step
For：
1）Initialization is completed by MCU controllers 2.21；
2) after the completion of MCU controllers 2.21 are initialized, USB keyboard connection is detected the presence of, when connection is detected, is initialized
USB keyboard；
3）IN bags are actively sent after completing USB keyboard initialization and obtains the button data from keyboard：When get by
Key data be self-defined OSD image processing commands when, send OSD operation signals control image change, i.e., according to keyboard commands at
Reason OSD menu images, while sending handover information to switch unit 2.1, complete the synchronism switching of graphical interfaces and physical connection
Action；If the keyboard data for obtaining is not OSD operational orders, button data information is sent to currently with usb data form again
Then channel computer 1 repeats above-mentioned action.
In above-mentioned implementation steps, when computer has keyboard light data output, MCU controllers 2.21 will also receive keyboard
Simultaneously adverse transference realizes keyboard light status display to USB keyboard to lamp data.
The simulation of MCU controllers 2.21 USB main interface working methods in above-mentioned technical proposal are connected with USB keyboard, initially
Change process will compatible difference USB HID descriptors keyboard, if initializing unsuccessful, MCU controllers 2.21 cannot be received
To the key information of keyboard, control OSD image channels switch just does not know where to begin.MCU controllers 2.21 want active poll USB key
Disc apparatus whether there is button data to be sent, and requires that comparison is short on poll-interval, and mistake or omission receive any one button
Data can all make control become unstable.Therefore, in firmware handle, the descriptor of different USB HID keyboards is classified
Process, raising is initialized to power；Accurate control on poll-interval, far smaller than physical button speed, to be properly received
Each button data.
Embodiment：In the hardware designs of 2.2 module of OSD unit, controlled as MCU with the C8051F340 with USB interface
Device processed 2.21, CH374 is used as USB HID interface bridge pieces, the USB interface connection keyboard of CH374, parallel port connection C8051F340；
Chip 2.23 is produced as OSD with MTV030, I2C buses are connected with MCU controllers 2.21, and VGA signal output parts are connected to RGB
On 2.24 MAX4023 of chip superposed.In software design, when click keyboard Alt key, display recalls OSD images switching dish
Single, after OSD menu is enabled, current channel computer 1 cannot receive keyboard data again, select pre-set path with directionkeys, use
"enter" key" determines current channel and closes OSD, closes keyboard data and 1 proper communication of current channel computer after OSD.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (2)
1. a kind of method that USB keyboard calls OSD switching channels in KVM equipment, the KVM device structures include switch unit and
OSD unit, OSD unit are connected with USB keyboard by input interface, are connected with display, above-mentioned OSD unit by output interface
Current channel computer is connected with by switch unit also, the OSD unit includes that MCU controllers, OSD produce chip, HID and connect
Mouth chip, RGB chip superposeds, input interface and output interface, wherein input interface are connect for the keyboard of USB HID protocol standards
Mouthful, HID interface chips connect USB keyboard by the input interface, and the HID interface chips are also associated with MCU controllers and are used in combination
In the transmitting-receiving for completing usb data；The output interface is USB interface, and it is folded that MCU controllers order produces chip, RGB by OSD
Concrete-cored connects the USB interface, and above-mentioned MCU controllers and OSD are produced and connected by I2C buses between chip；The switching is single
Rhizoma Coptidis connect the MCU controllers of above-mentioned OSD unit and receive channel switching signal that MCU controllers send, receive and dispatch its USB for sending
Keyboard signal；The switch unit is also associated with current channel computer and receives and dispatches current USB keyboard signal which sends, receives which
The current rgb signal for sending；Switch unit also sends computer rgb signal and gives RGB chip superposeds, it is characterised in that its concrete reality
Applying step is：
1）Initialization is completed by MCU controllers；
2) after the completion of the initialization of MCU controllers, USB keyboard connection is detected the presence of, when connection is detected, initializes USB keyboard；
3）IN bags are actively sent after completing USB keyboard initialization and obtains the button data from keyboard：When getting by bond number
According to for self-defined OSD image processing commands when, send OSD operation signals control image change, i.e., according to keyboard commands process OSD
Menu image, while sending handover information to switch unit, completes the synchronism switching action of graphical interfaces and physical connection；If
When the button data of acquisition is not self-defined OSD image processing commands, button data information is sent to usb data form again to be worked as
Then prepass computer repeats above-mentioned action.
2. the method that USB keyboard calls OSD switching channels in KVM equipment according to claim 1, it is characterised in that：
In above-mentioned implementation steps, when computer has keyboard light data output, MCU controllers to also receive keyboard light data and adverse transference to
USB keyboard realizes keyboard light status display.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310005349.XA CN103076888B (en) | 2013-01-08 | 2013-01-08 | A kind of method that USB keyboard calls OSD switching channels in KVM equipment and the equipment |
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| CN201310005349.XA CN103076888B (en) | 2013-01-08 | 2013-01-08 | A kind of method that USB keyboard calls OSD switching channels in KVM equipment and the equipment |
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| CN103076888B true CN103076888B (en) | 2017-03-29 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995598A (en) * | 2014-02-26 | 2014-08-20 | 山东超越数控电子有限公司 | HPS-based OSD interface switching scheme of FPGA |
| CN104615271A (en) * | 2015-02-28 | 2015-05-13 | 浪潮集团有限公司 | Processing method for KVM (Kernel-based Virtual Machine) and processing device for KVM |
| CN104750265A (en) * | 2015-03-26 | 2015-07-01 | 浪潮集团有限公司 | Method for calling displayer OSD menu in all-in-one computer through keyboard |
| CN106406799A (en) * | 2016-11-22 | 2017-02-15 | 郑州云海信息技术有限公司 | OSD-based server multi-channel switching structure and switching method |
| CN111009106B (en) * | 2018-10-05 | 2021-11-30 | 财团法人工业技术研究院 | Human-computer interface system and communication control device thereof |
| CN110673814B (en) * | 2019-09-30 | 2022-03-25 | 联想(北京)有限公司 | Processing method and output device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200976129Y (en) * | 2006-11-28 | 2007-11-14 | 曙光信息产业(北京)有限公司 | Daisy chain structure based analog KVM switch |
| CN102279654A (en) * | 2011-08-25 | 2011-12-14 | 浪潮电子信息产业股份有限公司 | Method for realizing keyboard in keyboard, video and mouse (KVM) all-in-one machine calling on screen display (OSD) menu of display |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050172039A1 (en) * | 2004-02-04 | 2005-08-04 | C&C Technic Taiwan Co., Ltd. | KVM switch |
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2013
- 2013-01-08 CN CN201310005349.XA patent/CN103076888B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200976129Y (en) * | 2006-11-28 | 2007-11-14 | 曙光信息产业(北京)有限公司 | Daisy chain structure based analog KVM switch |
| CN102279654A (en) * | 2011-08-25 | 2011-12-14 | 浪潮电子信息产业股份有限公司 | Method for realizing keyboard in keyboard, video and mouse (KVM) all-in-one machine calling on screen display (OSD) menu of display |
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Effective date of registration: 20180806 Address after: 250100 S06 tower, 1036, Chao Lu Road, hi tech Zone, Ji'nan, Shandong. Patentee after: Shandong wave cloud Mdt InfoTech Ltd Address before: 250014 1036 Shun Ya Road, hi tech Zone, Ji'nan, Shandong. Patentee before: Inspur Group Co., Ltd. |
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Address after: 250100 No. 1036 Tidal Road, Jinan High-tech Zone, Shandong Province, S01 Building, Tidal Science Park Patentee after: Inspur cloud Information Technology Co., Ltd Address before: 250100 Ji'nan science and technology zone, Shandong high tide Road, No. 1036 wave of science and Technology Park, building S06 Patentee before: SHANDONG LANGCHAO YUNTOU INFORMATION TECHNOLOGY Co.,Ltd. |
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