CN102368787B - Cloud computing system based on KVM (Keyboard Video and Mouse) virtualization and media redirection - Google Patents
Cloud computing system based on KVM (Keyboard Video and Mouse) virtualization and media redirection Download PDFInfo
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Abstract
The invention discloses a cloud computing system based on KVM (Keyboard Video and Mouse) virtualization and media redirection. The cloud computing system comprises two parts, namely, a cloud computing server side and a client side. The server side is used for realizing the KVM virtualization and the media redirection virtualization besides resource virtualization. A resource virtualization unit is used for providing a CPU (Central Processing Unit), a memory and other computing resources for a user; the KVM virtualization is used for providing VIDEO display, keyboard and mouse and other human-machine interaction modes to the user; and a media redirection unit can be used for mapping CD (Compact Disk) driver, a floppy disk, a USB (Universal Serial Bus) flash driver and other storage equipment of the client side to the server side so as to realize transmission of user data. Accordingly, for the client side, a complete set of computer virtualization equipment of the client side is constituted by means of the three virtualization parts, the requirements of the client side on hardware resources are reduced, and the construction of a cloud computing service of the server side is facilitated.
Description
Technical field
The present invention relates to computer realm, be specifically related to a kind of based on the virtual cloud computing system that is redirected with media of KVM.
Background technology
At present aspect the implementation of cloud computing system many based on the CS pattern namely: server and client side's pattern.Performance to the network bandwidth and client computer under this mode has certain requirement, and client wants installing operating system, and the softwares such as browser and JAVA virtual machine be arranged.Aspect procotol, also to adopt the multiple network host-host protocol.So the deployment relative complex of cloud computing system, cost is higher, difficulty is larger.
Summary of the invention
The present invention is directed to the deficiency that existing cloud computing system exists aspect deployment and realization, proposed a kind of based on the virtual cloud computing system that is redirected with media of KVM.
The objective of the invention is to realize in the following manner, system comprises cloud computing server end and client two parts, comprise resource virtualizing unit, the virtual unit of KVM and media redirection of virtual unit at the cloud computing server end, comprise VIDEO in client and unpack display module, the HID/CD/FD parse module of packing;
The resource virtualizing unit except the resource virtualizing function is provided, also provide with the virtual unit of KVM in the interface of VIDEO SERVER module: virtual VGA interface and the virtual USB interface that is used for being connected HID SERVER, CD SERVER, FD SERVER;
The virtual unit of KVM comprises VIDEO SERVER module and HID SERVER module;
Media are redirected the unit and comprise CD SERVER module and FD SERVER module;
The VIDEO of client unpacks display module and is responsible for receiving from the video data of cloud computing server end and unpacks demonstration; Reception is transferred to the cloud computing server end from the HID/CD/FD read-write of server end or configuration order and with the packing of HID/CD/FD data;
Client also comprises the equipment of supporting user's operation such as display screen, keyboard, mouse, CD-ROM drive;
The virtual unit of KVM is transferred to client with the packing of VIDEO SERVER data through Ethernet, and the HID packet that receives from client is delivered to the resource virtualizing unit with the HID data through the virtual USB interface;
Pack the resource virtualizing unit and be transferred to client through Ethernet in the redirected unit of media to the read write command of CD and FD, and reception is from the media data of client, after CD SERVER module and FD SERVER module unpack, be delivered to the resource virtualizing unit by the virtual USB interface;
The media redirection steps is as follows: the mouse device in client is identified by the bottom layer driving of client, and with mouse message be packaged into the iUSB packet through the cloud network delivery to server end, caught by the USB HID process endpoint that media are redirected the unit at the server end mouse message, be delivered to USB and drive layer, become a HID mouse device and receive data through the virtual USB interface by the identification of resource virtualizing unit to the USB hardware layer again, thereby finish being redirected of a complete USB HID equipment, the realization that is redirected of other USB device similarly;
The HID/CD/FD data transmit with the form of iUSB bag, and the VIDEO data transmit in difference video flowing mode.
The invention has the beneficial effects as follows: comprise two parts cloud computing server end and client in the cloud computing system involved in the present invention.Server end is except redirected virtual of the virtual virtual and media of also having realized KVM of realizing resource.The resource virtualizing unit provides the computational resources such as CPU, internal memory for the user; The virtual user of turning to of KVM provides the interactive modes such as the demonstration of VIDEO video, keyboard and mouse; Media are redirected the unit can be mapped to server end with memory devices such as the CD-ROM drive of user side, floppy disk, USB flash disks, for the transmission of user data.A complete computer virtual equipment that concerning user side, has just formed like this user side by these three virtual parts.HID SERVER module in the redirected unit of media and the virtual unit of KVM is as virtualized USB device and resource virtualizing unit communication.VIDEO SERVER is connected with the resource virtualizing unit by virtual VGA interface and as the VGA display device.The HID SERVER that media are redirected in unit and the virtual unit of KVM carries out data communication by the iUSB packet through Ethernet and client; VIDEO SERVER will compress from the video data of resource virtualizing unit through Internet Transmission to client.For reducing bandwidth, can adopt the method for image difference transfer of data during transmission of video, image change part is transmitted.
Because transfer of data is based on Ethernet protocol among the present invention, the packet that adopts only has video streaming data packet and iUSB packet, so client can be only other plants packet and packs and unpack for this, client can need not installing operating system and browser like this, only rely on bottom software just video decode can be shown, and the packing of the media datas such as HID and CD is sent to server end.
Media involved in the present invention are redirected the memory devices such as the HID equipment such as keyboard and mouse, USB CDROM equipment, USB FD floppy drive equipment and USB flash disk that mainly refer to client and are remapped to the resource virtualizing unit through the cloud network, the user is just the same as using in this locality when using these equipment like this, and the realization of this part function is mainly by media redirected unit realization.
The present invention reduces greatly to the requirement of client hardware, can greatly reduce the cost of client hardware, is beneficial to deployment and the enforcement of cloud computing system.
Description of drawings
Fig. 1 is cloud computing system figure involved in the present invention;
Fig. 2 is that media are redirected implementation figure.
Embodiment
With reference to Figure of description to explaining below the work of the present invention.
Of the present invention based on the virtual cloud computing system that is redirected with media of KVM, as shown in Figure 1: the present invention includes server end and client two parts.Resource virtualizing unit, the virtual unit of KVM and/or media redirection of virtual unit have been comprised at the cloud computing server end; Comprise VIDEO in client and unpacked display module, the HID/CD/FD parse module of packing.
The resource virtualizing unit except the resource virtualizing function is provided, also provide with the virtual unit of KVM in the interface of VIDEO SERVER module: virtual VGA interface and the virtual USB interface that is used for being connected HID SERVER, CD SERVER, FD SERVER.The virtual unit of KVM comprises VIDEO SERVER module and HID SERVER module.Media are redirected the unit and comprise CD SERVER module and FD SERVER module.The virtual unit of KVM is transferred to client with the packing of VIDEO SERVER data through Ethernet, and the HID packet that receives from client is delivered to the resource virtualizing unit with the HID data through the virtual USB interface.Media are redirected the unit resource virtualizing unit are transferred to client to the read write command packing of CD and/or FD through Ethernet, and receive from the media data of client be delivered to the resource virtualizing unit by the virtual USB interface after CD SERVER module and FD SERVER module unpack.
The VIDEO of client unpacks display module and is responsible for receiving from the video data of cloud computing server end and unpacks demonstration; Reception is transferred to the cloud computing server end from the HID/CD/FD read-write of server end or configuration order and with the packing of HID/CD/FD data.Client also comprises the equipment of supporting user's operation such as display screen, keyboard, mouse, CD-ROM drive etc.
Transmit in the form of cloud computing data transmission HID/CD/FD data with the iUSB bag.The VIDEO data transmit in difference video flowing mode.
Media are redirected implementation step as shown in Figure 2, identified by the bottom layer driving of client at the mouse device of client, and with mouse message be packaged into the iUSB packet through the cloud network delivery to server end.Caught by the USB HID process endpoint that media are redirected the unit at the server end mouse message, be delivered to USB and drive layer, become a HID mouse device and receive data through the virtual USB interface by the identification of resource virtualizing unit to the USB hardware layer again, thereby finish being redirected of a complete USB HID equipment.The realization that is redirected of other USB device similarly.
Except the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (1)
1. cloud computing system that is redirected based on the virtual and media of KVM, it is characterized in that system comprises cloud computing server end and client two parts, comprise resource virtualizing unit, the virtual unit of KVM and media redirection of virtual unit at the cloud computing server end, comprise VIDEO in client and unpack display module, the HID/CD/FD parse module of packing;
The resource virtualizing unit is except providing the resource virtualizing function, also be provided for connecting the virtual VGA interface of the VIDEO SERVER module in the virtual unit of KVM, and the virtual USB interface that is used for connecting HID SERVER module, CD SERVER module and FD SERVER module;
The virtual unit of KVM comprises VIDEO SERVER module and HID SERVER module;
Media redirection of virtual unit comprises CD SERVER module and FD SERVER module;
The VIDEO of client unpacks display module and is responsible for receiving from the video data of cloud computing server end and unpacks demonstration; Reception is read and write or configuration order from the HID/CD/FD of cloud computing server end, and the packing of HID/CD/FD data is transferred to the cloud computing server end;
Client is supported the equipment of user's operation, comprises display screen, keyboard, mouse, CD-ROM equipment;
The virtual unit of KVM is transferred to client with the packing of VIDEO SERVER data through Ethernet, and the HID packet that receives from client is delivered to the resource virtualizing unit with the HID data through the virtual USB interface;
Pack the resource virtualizing unit and be transferred to client through Ethernet in media redirection of virtual unit to the read write command of CD and FD, and reception is from the media data of client, after CD SERVER module and FD SERVER module unpack, be delivered to the resource virtualizing unit by the virtual USB interface;
Media redirection of virtual step is as follows: the mouse device in client is identified by the bottom layer driving of client, and with mouse message be packaged into the iUSB packet through the cloud network delivery to the cloud computing server end, caught by the USB HID process endpoint of media redirection of virtual unit at the server end mouse message, be delivered to USB and drive layer, become a HID mouse device and receive data through the virtual USB interface by the identification of resource virtualizing unit to the USB hardware layer again, thereby finish being redirected of a complete USB HID equipment, the realization that is redirected of other USB device similarly;
The HID/CD/FD data transmit with the form of iUSB bag, and the VIDEO data transmit in difference video flowing mode.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104202615A (en) * | 2014-09-25 | 2014-12-10 | 湖北第二师范学院 | Video redirection method based on cloud computing |
| CN105159749B (en) * | 2015-09-11 | 2019-02-12 | 广东微云科技股份有限公司 | A kind of cloud terminal redirects local disk to the method and system of virtual machine |
| CN107220190B (en) * | 2017-05-25 | 2024-03-08 | 无锡英斯特微电子有限公司 | System and method for realizing bidirectional information interaction with host driver by using custom USB mouse and keyboard |
| CN107885349A (en) * | 2017-12-14 | 2018-04-06 | 郑州云海信息技术有限公司 | A kind of server KVM integrated systems |
| CN110096236B (en) * | 2019-04-30 | 2022-05-31 | 广州长图量传电子科技有限公司 | Remote on-hook switching method for U disk of KVM system |
| CN112068927B (en) * | 2020-08-12 | 2023-11-17 | 福建升腾资讯有限公司 | Recorder redirection method and system for cloud desktop |
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| CN101605084A (en) * | 2009-06-29 | 2009-12-16 | 北京航空航天大学 | Virtual network message processing method and system based on virtual machine |
| CN102075526A (en) * | 2010-12-22 | 2011-05-25 | 北京航空航天大学 | Soft real-time application-oriented verification system under multi-core virtualized environment |
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| CN101605084A (en) * | 2009-06-29 | 2009-12-16 | 北京航空航天大学 | Virtual network message processing method and system based on virtual machine |
| CN102075526A (en) * | 2010-12-22 | 2011-05-25 | 北京航空航天大学 | Soft real-time application-oriented verification system under multi-core virtualized environment |
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