CN106027882A - Redirection method for camera arranged in virtual environment - Google Patents
Redirection method for camera arranged in virtual environment Download PDFInfo
- Publication number
- CN106027882A CN106027882A CN201610315686.2A CN201610315686A CN106027882A CN 106027882 A CN106027882 A CN 106027882A CN 201610315686 A CN201610315686 A CN 201610315686A CN 106027882 A CN106027882 A CN 106027882A
- Authority
- CN
- China
- Prior art keywords
- photographic head
- data
- terminal
- virtual desktop
- peripheral hardware
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
- H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/547—Remote procedure calls [RPC]; Web services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/617—Upgrading or updating of programs or applications for camera control
Abstract
The invention discloses a redirection method for a camera arranged in a virtual environment. According to the method, information is transmitted by a remote transmission protocol, and thus a terminal directly reads the data of the camera in local, and directly decodes in a local remote desktop window to display an image, namely the completely local displaying is achieved for a user; two times of data transmission on the network is not needed, and no delay phenomenon is caused, meanwhile, no image data needs to be transmitted on the network, and only several pieces of simple communication information are transmitted on the network, so that the network load is greatly reduced and the user experience is greatly enhanced.
Description
Technical field
The present invention relates to be located at outside a kind of photographic head the reorientation method under virtualized environment, belong to application distribution technology neck
Territory.
Background technology
The most flourishing in the promotion lower network technology of scientific and technological progress, more and more higher to the demand of server.At present
Whole world industry-by-industry all starts to carry out virtualized application, and virtualization can be used to carry out server, storage, network, and desktop should
With the integration of program, following development will rise to cloud computing.And virtualizing is the basis carrying out cloud computing.Desktop virtual is
The server of data center carries out server virtualization, generate substantial amounts of independent desktop operating system (virtual machine or
Virtual desktop), it is sent to terminal unit according to proprietary virtual desktop agreement simultaneously.User terminal logs on void by Ethernet
Intend on main frame, it is only necessary to remember username and password and gateway information, the table of oneself can be accessed anywhere or anytime by network
Plane system.And in the use of desktop virtual, occur in that the use demand of great amount of images equipment (as first-class in shooting).In order to save
Saving IT hardware cost, improve the utilization rate of server, Intel Virtualization Technology is the most prevailing, and virtualization translator of English is
Virtualization, in IT circles, virtualization refers to utilize various method that the various hardware resources of physical computer (are included
CPU, RAM, hard disk and network controller) give simulation out, thus realize in separate unit physical machine, run multiple and " truly " meter
The technology of the virtual machine that calculation machine is the same, each virtual machine can run oneself independent operating system and not conflict mutually.
Intel Virtualization Technology is saving IT hardware cost, and improving the aspect such as server utilization, to be that enterprise brings many good
Place, universal along with Intel Virtualization Technology and management, increasing enterprise proceeds by the deployment of virtualization scheme.Introduce virtual
After changing server, enterprise can concentrate the desktop to employee be managed and safeguard, significantly alleviates the workload of management.
After deploying desktop virtual, shown in overall Structure Figure 1, in desktop virtual scheme, to accomplish and use
The Consumer's Experience that PC is the same, then the redirection of peripheral hardware is supported it is requisite key link.
For peripheral hardware, redirection process is essentially all the virtual desktop all of usb data being sent to far-end
On, for photographic head, redirection process is as follows: be first the data redirection of peripheral hardware to virtual desktop, due to shooting
The data of head show on virtual desktop and can represent in the way of dynamic image, the therefore Dynamic Graph of virtual desktop
As data need to be conveyed once again on user terminal.Redirection process so is equivalent to view data and can return on network
Defeated twice, owing to photographic head is dynamic data, data volume is the biggest, in the case of image rocks per second up to
Several MB, also have the flow of hundreds of KB in real-time Transmission under general case, for therefore using this kind of redirection mode, exist as follows
Two deficiencies:
1, flow occupation problem, network is caused certain pressure, the most such as by the transmission of twice in a network of the biggest flow
Fruit is to use, such as across wide area network or wireless WLAN etc. in the environment of the network bandwidth is not enough；
2, the delay of image, owing to the transmission of the biggest flow of the delay of network can cause the delay of image, the change of image
First have to be transferred to server, return terminal from server feedback the most again and just can feel, so that the best with Consumer's Experience.
Summary of the invention
The technical problem to be solved in the present invention is to provide outside a kind of photographic head and is located at the reorientation method under virtualized environment,
Utilize the method can simplify network data transmission, it is to avoid network delay phenomenon, be substantially reduced the load of network and promote user
Experience.
For solving above-mentioned technical problem, the technical solution used in the present invention is: be located at virtualization ring outside a kind of photographic head
Reorientation method under border, it is characterised in that comprise the steps:
(1) first, insert photographic head peripheral hardware in terminal, after virtual desktop finds the access of photographic head peripheral hardware, start and redirect merit
Can, utilize network that the content shown by photographic head peripheral hardware is read out；
(2) during reading, intercepting reading photographic head request of data, the information intercepted is analyzed by virtual desktop,
And send to terminal after request encapsulation, application program positional information on the table is also sent to terminal simultaneously；
(3) according to remote display protocol, after read requests and positional information are changed, process；
(4) virtual desktop, to photographic head peripheral hardware received data, is read out in this locality simultaneously, data message and application journey
Sequence is shown on corresponding position；
(5) closing application program, virtual desktop end sends closedown message by remote display protocol and reads to terminal, terminal stopping
The data of photographic head.
Said method is described further, in described step (4), after the position of application program is moved, again reads
When taking positional information, virtual desktop end sends a notification message and carries out the change of image rendering point to terminal simultaneously.
Use and have the beneficial effects that produced by technique scheme: method involved in the present invention, and current industry
Scheme is compared, and mainly by the way of again data redirection being returned terminal, is greatly improved this kind equipment of photographic head virtual
Change the experience under environment；The present invention utilizes local photographic head be read out, then read requests is sent to terminal, real
Existing primary network data transmission, can realize virtual desktop, and the method is avoided because twice transmission causes network data to postpone or stifled
Plug, thus reduces network usage, alleviates network pressure, is lifted at the using effect in the case of wireless or wide area network simultaneously；This
This locality in invention carries out the reading of photographic head data, is then presented on the position at application program place, is inherently eliminated
The impact brought because of network delay, promotes Consumer's Experience when photographic head uses, the farthest user's body of the local PC of simulation
Test.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the integrated stand composition of reorientation method under original virtual environment；
Fig. 2 is to be located under virtual environment the Organization Chart redirected in the present invention outside photographic head；
Fig. 3 is the method flow diagram of the present invention；
Fig. 4 is the theory diagram that photographic head redirects；
Fig. 5 is the sequential chart of USB peripheral reorientation.
Wherein: 1, storage server, 2, server cluster, 3, switch, 4, virtual desktop controller, 5, terminal, 6, empty
Planization platform, 7, photographic head.
Detailed description of the invention
The present invention relates to be located at outside a kind of photographic head the reorientation method under virtualized environment, the method specifically develop think of
Road, as shown in Figure 2: for the redirection of photographic head peripheral hardware, owing to data volume is bigger, needs at corresponding particular virtual
Transmitting in passage, client remote virtual desktop, for redirecting the read-write requests of photographic head peripheral hardware, is cut by desktop host-host protocol
Obtaining, read-write requests and data are forwarded to client, and the most then response, sound are made in request by the photographic head peripheral hardware in client
Should operate, and by desktop host-host protocol return response result data to server end, then the response that will be received by server end
Data are sent to photographic head peripheral hardware.
In the present invention, virtualization refer to utilize software the various hardware resources of physical computer (include CPU, RAM,
Hard disk and network controller) give simulation out, thus realization runs multiple the same with " truly " computer in separate unit physical machine
The technology of virtual machine.Each virtual machine can run oneself independent operating system and not conflict mutually.Redirection refers to
Under virtualized environment, each user uses the operating system operating in server end, then in local thin terminal
The all peripheral hardwares connect, if needing to show inside virtual desktop, need local peripheral hardware to be mapped to virtual table
In face, the effect of use just looks like as peripheral hardware is inserted in inside common PC, and this local peripheral hardware is mapped in virtual desktop
Technology, referred to as peripheral hardware redirect.Peripheral hardware redirect be common in redirect USB Type equipment (USB flash disk, photographic head, printer,
CD-ROM drive, USB Key etc.), serial ports and parallel port etc..
The present invention is directed to photographic head peripheral hardware, be characterized in gather image, collection data volume per second comparatively speaking than
Relatively big, the most several MB per second in the case of image rocks, also there is the flow of hundreds of KB under general case in real-time Transmission, therefore
Need photographic head peripheral hardware is redirected, it is achieved the quick transmission of network.
Photographic head redirects its ultimate principle block diagram as shown in Figure 4, wherein photographic head client: be responsible for from photographic head
Obtain data, and be forwarded to photographic head service end；Photographic head service end: be responsible for creating, deleting Softcam, and photographic head
The data that client sends are forwarded in the Softcam of correspondence；Softcam: be responsible for and all kinds of camera application programs
Alternately, and process the data that photographic head service end sends over.The most in operation, photographic head redirects to be needed to meet: 1, take the photograph
As nose heave orientation works is in application layer, 2, client need to install corresponding webcam driver program (general photographic head free drive or
Carry driving), identify and use concrete equipment, 3, virtual machine need not install corresponding driver, 4, this mould
The advantage of formula is: speed is fast, reliability is high, support video data compression, and occupied bandwidth is few.
Based on above thinking, inventor designs the reorientation method method that is located at outside photographic head under virtualized environment
Idiographic flow, as shown in Figure 3, including:
(1) insert after photographic head peripheral hardware in terminal, similar with common, redirect, allow the connecing of virtual desktop discovery peripheral hardware
Enter；
(2), after opening the application program of photographic head, application program can read the data of camera device under normal circumstances, then with
Image mode represents.New method, reading when, intercepts reading photographic head request of data, does not carry out true
Positive digital independent, is to be forwarded directly in terminal after read requests encapsulation on the contrary, and send the past also applies journey simultaneously
Some key elements such as sequence positional information on the table；
(3) after terminal receives message by remote display protocol, this locality carries out the reading of photographic head data, and being then presented in should
On position with program place, coming from the point of view of user, the same with the photographic head of this locality, data are no longer carried out by network
Transmission, but reading and the display of this locality is carried out in terminal；
(4) when the positional information of mobile applications, virtual desktop end sends a notification message and carries out image rendering point to terminal
Change；
(5), when closing application program, virtual desktop end sends closedown message by remote display protocol and reads to terminal, terminal stopping
Take the data of photographic head.
In above-mentioned flow process (2), the read requests of photographic head peripheral hardware is i.e. USB redirection process.For remote server
It is responsible for directly interacting with virtual USB peripheral hardware, and disappears by the virtual device interface (VDI) provided by QEMU virtual machine
Breath transmission.Guest end serves as USB-guest end, and by VDI interface, read request and usb protocol data are sent to service end, clothes
After business end uses USB to redirect protocol encapsulation message, redirect passage by USB and be forwarded to client.Client process is read please
Result is sent to after asking service end, and usb data is write back to virtual Guest by QEMU by VDI interface by service end
Virtual USB device.For the operating system of client, usb data processing procedure is transparent, and whole process similarly is
Directly physical USB device is operated, thus realize the USB in cloud desktop and redirect.It will therefore be appreciated that what USB redirected
Sequential chart, as shown in Figure 5.
In above-mentioned flow process (5), remote display protocol is responsible for from data center's desktop, data are sent to terminal, popular
Remote display protocol provides high-resolution session, media stream teleprocessing, shows support, dynamic object compression, USB weight more
The functions such as orientation, drive mapping.Wherein redirecting agreement (USBredirection) for USB is a procotol, fixed
Justice redirects on a machine the various control data messages of USB device to the specification of another machine (or virtual machine),
Connected by network and send USB device and transmit, be used for getting through USB device with is connected between end, remote dummy equipment and true USB
Communication data transfer between equipment and redirection.Its function is as follows: the 1) state of monitoring management physical USB equipment；2)
USB controls data message and processes；3) peripheral operation processes.
By the comparison of Fig. 2 and Fig. 1, it is seen that, the method in the present invention is only by reading insertion information, and sending please
Ask information and positional information, virtualized redirection can be completed, it is achieved the photographic head seamless displaying under virtual environment.
This kind equipment of photographic head it is greatly improved at virtualized environment by the way of again data redirection being returned terminal
Under experience, it is not necessary in the view data that transmission over networks is any, it is contemplated that current mode is first data to be transmitted
To virtual desktop, and virtual desktop removes the image transmitting of display in terminal again, and this transmission of twice is purely to waste, because of
This new mode sends message by remote transfer protocol, allows terminal local directly read the data of photographic head, directly in this locality
Remote desktop window on be decoded display thus show image, be exactly for a user one the most locally displayed, i.e.
Two data transfer being made without on network, without the phenomenon of next any delay, transmission over networks is only several letters
Single communication information, is substantially reduced the load of network and promotes Consumer's Experience.
Being more than the present invention preferably embodiment, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula changes and revises, and therefore, the invention is not limited in that above-mentioned detailed description of the invention, every those skilled in the art exist
Any conspicuously improved, the replacement made on the basis of the present invention or modification belong to protection scope of the present invention.
Claims (2)
1. it is located at the reorientation method under virtualized environment outside a photographic head, it is characterised in that comprise the steps:
(1) first, insert photographic head peripheral hardware in terminal, after virtual desktop finds the access of photographic head peripheral hardware, start and redirect merit
Can, utilize network that the content shown by photographic head peripheral hardware is read out；
(2) during reading, intercepting reading photographic head request of data, the information intercepted is analyzed by virtual desktop,
And send to terminal after request encapsulation, application program positional information on the table is also sent to terminal simultaneously；
(3) according to remote display protocol, after read requests and positional information are changed, process；
(4) virtual desktop, to photographic head peripheral hardware received data, is read out in this locality simultaneously, data message and application journey
Sequence is shown on corresponding position；
(5) closing application program, virtual desktop end sends closedown message by remote display protocol and reads to terminal, terminal stopping
The data of photographic head.
The reorientation method under virtualized environment it is located at, it is characterised in that described outside photographic head the most according to claim 1
Step (4) in, after the position of application program is moved, when again reading off positional information, simultaneously virtual desktop end send notice
Message carries out the change of image rendering point to terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315686.2A CN106027882A (en) | 2016-05-16 | 2016-05-16 | Redirection method for camera arranged in virtual environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315686.2A CN106027882A (en) | 2016-05-16 | 2016-05-16 | Redirection method for camera arranged in virtual environment |
Publications (1)
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| CN106027882A true CN106027882A (en) | 2016-10-12 |
Family
ID=57100332
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| CN201610315686.2A Pending CN106027882A (en) | 2016-05-16 | 2016-05-16 | Redirection method for camera arranged in virtual environment |
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Cited By (9)
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| CN107239272A (en) * | 2017-04-10 | 2017-10-10 | 成都长天信息技术有限公司 | A kind of video capture device reorientation method and device |
| CN107528887A (en) * | 2017-07-26 | 2017-12-29 | 广州云晫信息科技有限公司 | A kind of distributed cloud system based on fusion unified calculation |
| CN107643936A (en) * | 2017-10-26 | 2018-01-30 | 上海金途信息科技有限公司 | A kind of image class peripheral data Redirectional system based on QEMU camera devices |
| CN109040786A (en) * | 2018-09-03 | 2018-12-18 | 锐捷网络股份有限公司 | Transmission method, device, system and the storage medium of camera data |
| CN109918160A (en) * | 2019-02-22 | 2019-06-21 | 黑龙江易联云通科技有限公司 | A kind of application method based on high photographing instrument in KVM desktop virtualization |
| CN111917988A (en) * | 2020-08-28 | 2020-11-10 | 长沙摩智云计算机科技有限公司 | Remote camera application method, system and medium of cloud mobile phone |
| CN114040017A (en) * | 2021-11-08 | 2022-02-11 | 麒麟软件有限公司 | Remote desktop server camera relocation system and method for Android system |
| CN116366928A (en) * | 2023-06-01 | 2023-06-30 | 南京美乐威电子科技有限公司 | USB camera bridging method and cloud terminal |
| CN117319592A (en) * | 2023-12-01 | 2023-12-29 | 银河麒麟软件(长沙)有限公司 | Cloud desktop camera redirection method, system and medium |
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| CN107239272B (en) * | 2017-04-10 | 2020-09-29 | 成都长天信息技术有限公司 | Video capture equipment redirection method and device |
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| CN109918160A (en) * | 2019-02-22 | 2019-06-21 | 黑龙江易联云通科技有限公司 | A kind of application method based on high photographing instrument in KVM desktop virtualization |
| CN111917988A (en) * | 2020-08-28 | 2020-11-10 | 长沙摩智云计算机科技有限公司 | Remote camera application method, system and medium of cloud mobile phone |
| CN111917988B (en) * | 2020-08-28 | 2021-12-10 | 湖南多行云计算机科技有限公司 | Remote camera application method, system and medium of cloud mobile phone |
| CN114040017A (en) * | 2021-11-08 | 2022-02-11 | 麒麟软件有限公司 | Remote desktop server camera relocation system and method for Android system |
| CN116366928A (en) * | 2023-06-01 | 2023-06-30 | 南京美乐威电子科技有限公司 | USB camera bridging method and cloud terminal |
| CN116366928B (en) * | 2023-06-01 | 2023-08-11 | 南京美乐威电子科技有限公司 | USB camera bridging method and cloud terminal |
| CN117319592A (en) * | 2023-12-01 | 2023-12-29 | 银河麒麟软件(长沙)有限公司 | Cloud desktop camera redirection method, system and medium |
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Application publication date: 20161012 |