CN103019368B - A kind of method that local I/O node switches with KVM module intelligence - Google Patents
A kind of method that local I/O node switches with KVM module intelligence Download PDFInfo
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- CN103019368B CN103019368B CN201210521658.8A CN201210521658A CN103019368B CN 103019368 B CN103019368 B CN 103019368B CN 201210521658 A CN201210521658 A CN 201210521658A CN 103019368 B CN103019368 B CN 103019368B
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Abstract
The present invention provides a kind of method of local I/O node and the switching of KVM module intelligence, belong to computer technology, including by the interconnective KVM module of backboard and some I/O node, described KVM module is provided with SWITCH chip, this SWITCH chip is connected to system management unit, described each I/O node is both provided with microswitch, VGA-SWITCH chip, in KVM module, by SWITCH chip, under the control of system management unit, by controlling the conducting of SWITCH chip difference passage, complete multiple signals switch operating.The method that this kind of local I/O node and KVM module intelligence switch is compared to the prior art, K/V/M can be completed by KVM module and cut a job more, namely multiple node servers can be controlled with a set of keyboard, mouse, display, and realize local and far-end dual redundant, improve system reliability.
Description
Technical field
The present invention relates to field of computer technology, a kind of method that local I/O node switches specifically with KVM module intelligence.
Background technology
CPCI framework is widely used in industrial circle industrial control computer system now, and it has high reliability, highdensity advantage.It is applied to server field and more plays its advantage, firm framework, high reliability, hot plug technology, make CPCI server application more and more wider.For multinode CPCI server, if each server node external access of mouse, keyboard, display.Just need to overlap I/O peripheral more.Being greatly increased cost, be unfavorable for that system is simplified, cost lowers.And use KVM module to realize the control of one-to-many.Then can reduce the cost, and the unified management of one-to-many can be realized.In some conditions, a certain computing node individually need to be debugged, debug or local control operation.Local peripheral hardware need to be added be operated.So that a kind of method can realize local IO and KVM video intelligent switching, both can local operation, again can far-end KVM operation.So simplify server peripheral hardware, reduce the cost, improve the cost performance of product, highly dense property.
Summary of the invention
The technical assignment of the present invention is to solve the deficiencies in the prior art, it is provided that a kind of method that local I/O node switches with KVM module intelligence.
The technical scheme is that and realize in the following manner, the method that this kind of local I/O node switches with KVM module intelligence, including by the interconnective KVM module of backboard and some I/O node, described KVM module is provided with SWITCH chip, this SWITCH chip is connected to system management unit, described each I/O node is both provided with microswitch, VGA-SWITCH chip, in KVM module, by SWITCH chip, under the control of system management unit, by controlling the conducting of SWITCH chip difference passage, complete multiple signals switch operating, its concrete switch step is: when there being display to access on I/O node, touch microswitch and make switch Guan Bi, the switching control pin of VGA-SWITCH chip drags down, at this moment VGA signal is switched on I/O node, output is shown local display；When this locality does not have display to access, switch-over control signal pin can draw high automatically, on data exchange to KVM module.
The present invention compared with prior art produced by provide the benefit that:
A kind of local I/O node of the present invention is with the method for KVM module intelligence switching, and what system can be intelligent completes the video switching of local I/O node and KVM module；Both can single node locally displayed, K/V/M can be completed by KVM module again and cut a job more, namely multiple node servers can be controlled with a set of keyboard, mouse, display, and realize local and far-end dual redundant, improve system reliability, the present invention is applied on CPCI IA frame serverPC, early stage at server researches and develops debugging, debug and can using in product, effectively lowers system cost, the stability of offer system, increases the competitiveness of product in market.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic equivalent circuit of the present invention.
Accompanying drawing 2 is the switching schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of local I/O node of the present invention is described in detail below with the method for KVM module intelligence switching.
As shown in accompanying drawing 1, Fig. 2, a kind of method that local I/O node and the switching of KVM module intelligence are now provided, including by the interconnective KVM module of backboard and some I/O node, described KVM module is provided with SWITCH chip, this SWITCH chip is connected to system management unit, in the present invention, for completing the locally displayed switching with KVM module distal displayed of I/O node, each computing node adds microswitch, VGA-SWITCH chip.
Its concrete switch step is as shown in Figure 1: when there being display to access on I/O node, touch microswitch and make switch Guan Bi, the switching control pin(SW of VGA-SWITCH chip) drag down, at this moment VGA signal (RGB, H/V) it is switched on I/O node, local display, shows output.When this locality does not have display to access, switch-over control signal SW can draw high automatically, on data exchange to KVM module, under the control of SMC, completes to cut the work of one by switch chip more.
When the data (VGA, USB) of multiple computing nodes are received in KVM module by backboard.In KVM module, by SWITCH chip, under the control of system management unit (SMC), by controlling the conducting of SWITCH chip difference passage, complete multiple signals switch operating.The switching of usb signal is completed by SWITCH chip (such as MAX4999E), and the switching of H/V signal is by SWITCH(such as DG407) realize, the switching of rgb signal is realized by SWITCH (such as ISL59482).And after VGA (RGB, H/V) signal switches, add VGABuffer, increase the driving force of data, it is provided that signal quality, it is ensured that signal integrity.
So, CPCI IA frame serverPC this locality IO and the switching of KVM video intelligent are completed.
Claims (1)
1. the method that a local I/O node switches with KVM module intelligence, it is characterized in that including by the interconnective KVM module of backboard and some I/O node, described KVM module is provided with SWITCH chip, this SWITCH chip is connected to system management unit, described each I/O node is both provided with microswitch, VGA-SWITCH chip, in KVM module, by SWITCH chip,System management unitControl under, by control SWITCH chip difference passage conducting,Complete multiple signals switch operating,Local I/O node concretely comprises the following steps with the switching of KVM module intelligence: whenOneWhen I/O node having display access, touchOn this I/O nodeMicroswitch makes switch Guan Bi, and the switching control pin of VGA-SWITCH chip drags down, and at this moment VGA signal is switched toShouldOn I/O node, local display, show output；When this locality does not have display to access, switch-over control signal pin can draw high automatically, on data exchange to KVM module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210521658.8A CN103019368B (en) | 2012-12-07 | 2012-12-07 | A kind of method that local I/O node switches with KVM module intelligence |
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| CN201210521658.8A CN103019368B (en) | 2012-12-07 | 2012-12-07 | A kind of method that local I/O node switches with KVM module intelligence |
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| CN103019368A CN103019368A (en) | 2013-04-03 |
| CN103019368B true CN103019368B (en) | 2016-06-29 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248585A (en) * | 2013-06-05 | 2013-08-14 | 浪潮电子信息产业股份有限公司 | High efficient server relay interchanging chip |
| CN103744637A (en) * | 2014-01-18 | 2014-04-23 | 浪潮电子信息产业股份有限公司 | VGA (video graphics array) signal output switching method for NUMA (non-uniform memory access)-based physical multi-partition computer architecture |
| CN205384553U (en) * | 2015-07-22 | 2016-07-13 | 加弘科技咨询(上海)有限公司 | Electronic device |
| CN105138300A (en) * | 2015-08-19 | 2015-12-09 | 浪潮集团有限公司 | FPGA-based multi-channel KVM management board |
| CN105700843A (en) * | 2016-01-19 | 2016-06-22 | 浪潮集团有限公司 | KVM system realization method based on OSD |
| CN105867866B (en) * | 2016-04-15 | 2018-09-21 | 浪潮集团有限公司 | A kind of KVM chips, KVM control systems and method |
| CN105892975B (en) * | 2016-04-21 | 2018-10-19 | 浪潮集团有限公司 | A kind of management board of KVM |
| CN107959806A (en) * | 2017-11-23 | 2018-04-24 | 郑州云海信息技术有限公司 | A kind of binodal point server KVM switches circuit |
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| CN1602473A (en) * | 2001-11-09 | 2005-03-30 | 阿托恩科技有限公司 | Signal switch for console and peripheral devices |
| CN202548769U (en) * | 2012-04-20 | 2012-11-21 | 中国科学院遥感应用研究所 | Host-slave-structure-based KVM (Keyboard & Video & Mouse) signal transmission device for computer |
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| US7519749B1 (en) * | 2004-08-25 | 2009-04-14 | American Megatrends, Inc. | Redirecting input and output for multiple computers |
| EP2325724A3 (en) * | 2007-05-11 | 2011-11-09 | Raritan Americas, Inc. | Local port browser interface |
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Patent Citations (3)
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|---|---|---|---|---|
| CN1602473A (en) * | 2001-11-09 | 2005-03-30 | 阿托恩科技有限公司 | Signal switch for console and peripheral devices |
| CN1567263A (en) * | 2003-06-19 | 2005-01-19 | 联想(北京)有限公司 | Signal manager of mouse, keyboard and display applied to cluster |
| CN202548769U (en) * | 2012-04-20 | 2012-11-21 | 中国科学院遥感应用研究所 | Host-slave-structure-based KVM (Keyboard & Video & Mouse) signal transmission device for computer |
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| CN103019368A (en) | 2013-04-03 |
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