CN106210665A - A kind of distance host control method based on video acquisition and system - Google Patents
A kind of distance host control method based on video acquisition and system Download PDFInfo
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- CN106210665A CN106210665A CN201610781422.6A CN201610781422A CN106210665A CN 106210665 A CN106210665 A CN 106210665A CN 201610781422 A CN201610781422 A CN 201610781422A CN 106210665 A CN106210665 A CN 106210665A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Information Transfer Between Computers (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention discloses a kind of distance host control method based on video acquisition and system, relate to computer long-distance control field, it is possible to image quality is being required higher, under the application scenarios that the network bandwidth is limited, it is achieved control remote host during efficient real.The present invention includes: configure video frequency collection card in local host, and video frequency collection card is connected with the video interface of distance host by cable, and for gathering the video signal of distance host output；Local host connects output display unit, the video signal of the distance host output that output display unit is collected for showing video frequency collection card；The control signal that the HID input equipment being connected with local host is sent is transmitted to the signal input interface of distance host by the signal output interface of hid gadget equipment, and is received by the HID input equipment enumerated in distance host.The present invention is applicable to requiring higher, under the application scenarios that the network bandwidth is limited to image quality, it is possible to realize control remote host during efficient real.
Description
Technical field
The present invention relates to computer long-distance control field, particularly relate to a kind of distance host controlling party based on video acquisition
Method and system.
Background technology
At present, in occasions such as school instruction, office meeting, PPT, code demonstrations, mainly have employed computer long-distance control
Technology realizes showing the content of multiple computers, and between plurality of computer, main employing LAN or the Internet etc. become at present
Ripe networking mode realizes being connected with each other, and carries out the picture of distance host based on existing network protocol and show and key Mus event
Transmission.
Picture based on existing internet communication protocol and the distance host of Local Area Networt Communication Protocols shows and key
The transmission plan of Mus event, due to its technology maturation age for image sharpness and remote control requirement of real-time not
Height, the problem the most too much considering high definition display distance host picture.But, under the most a lot of special applications scenes, such as:
The representing of the magnanimity code from the overall real-time descriptive analysis of angle, code review process for the most numerous and the most jumbled structural drawings
Deng, it is required for high definition display distance host picture, thus the resolution detail of shown content can be ensured.
But, currently existing scheme is the highest to the network bandwidth and remote host performance requirement, when network and remotely
When host performance is poor, it may appear that the phenomenon of manipulation time delay.If improving the performance of distance host, need to increase through costly, meeting
Increase a lot of teaching, scientific research institution and the expenditures of medium-sized and small enterprises.
Summary of the invention
Embodiments of the invention provide a kind of distance host control method based on video acquisition and system, it is possible to picture
Face prescription is higher, under the application scenarios that the network bandwidth is limited, it is achieved control remote host during efficient real.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
Described distance host includes the video interface for exporting video signal；Described local host configures video acquisition
Card, described video frequency collection card is connected with the video interface of described distance host by cable, and is used for gathering described distance host
The video signal of output；Described local host connects output display unit, and described output display unit is used for showing described video
The video signal of the described distance host output that capture card is collected；Described local host configures hid gadget equipment,
Described hid gadget equipment is the gadget equipment being connected with described distance host by USB of hid type；Described landlord
Machine connects HID input equipment, and enumerates the HID input equipment corresponding with described HID input equipment in described distance host,
The control signal that the HID input equipment being connected with described local host is sent is defeated by the signal of described hid gadget equipment
Outgoing interface transmits to the signal input interface of described distance host, and by the HID input equipment enumerated in described distance host
Receiving, described HID input equipment at least includes HID mouse-keyboard equipment；
Described method includes: described local host obtains the video of described distance host output by described video frequency collection card
Signal, and the picture that the video signal that gathered in described output display unit simultaneous display is corresponding；Described local host obtains
The HID event produced by described HID input equipment, and produced HID event is carried out screening and filtering, after screening and filtering
HID event sends to described distance host, in order to described distance host performs corresponding operating according to the HID event received.
The picture that the described video signal gathered in described output display unit simultaneous display is corresponding, including: by institute
State output display unit and show the display interface of described local host, and in the display interface of described local host, divide appointment
Display window；After receiving gathered video signal, described appointment display window shows the video signal gathered
Corresponding picture.
Described produced HID event is carried out screening and filtering, including: according to described HID event, determine described landlord
The user of machine carries out the position operated in the display interface of described local host by described HID input equipment；Detection is described
Whether the position carrying out operating is captured by described appointment display window；The most then retain described HID event；If it is not, then filter institute
State HID event, and performed corresponding operating by described local host according to described HID event.
The distance host control method based on video acquisition of embodiment of the present invention offer and system, join in local host
Putting video frequency collection card, video frequency collection card is connected with the video interface of distance host by cable, and it is defeated to be used for gathering distance host
The video signal gone out.Local host connects HID input equipment, and enumerates corresponding with HID input equipment in distance host
HID input equipment, the control signal that the HID input equipment being connected with local host the is sent letter by hid gadget equipment
Number output interface transmits to the signal input interface of distance host, and is received by the HID input equipment enumerated in distance host.
So that the interaction between local host and distance host can be directly by the video of the standards such as VGA, DVI or HDMI
Interface and USB interface, use video frequency collection card directly to gather the display output of distance host, it is not necessary to take the Internet or office
Territory network of network bandwidth, and realize the control to distance host by HID event filtering forwarding mechanism.Relative to prior art
The middle picture needing to take the distance host of the network bandwidth shows and the transmission plan of key Mus event, and the present embodiment is due to directly
Gather the video frequency output of distance host, so distance host need not that video signal is compressed coding and network transmits, pole
Big reduces the network bandwidth and the requirement of distance host performance；And the HID device such as mouse-keyboard are produced by the present embodiment
After raw control course of event software filters, directly it is transmitted to distance host by USB, it is to avoid control event is in network transmission
During time delay, improve the real-time responsiveness of remotely control.Requiring higher to image quality, what the network bandwidth was limited should
With under scene, it is possible to realize control remote host during efficient real.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below by use required in embodiment
Accompanying drawing is briefly described, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, for ability
From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
The configuration diagram of the distance host control system based on video acquisition that Fig. 1 provides for the embodiment of the present invention；
The schematic flow sheet of the distance host control method based on video acquisition that Fig. 2 provides for the embodiment of the present invention；
The schematic diagram of the instantiation that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
The present invention is described in further detail by formula.Embodiments of the present invention, the showing of described embodiment are described in more detail below
Example is shown in the drawings, and the most same or similar label represents same or similar element or has identical or class
Element like function.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining the present invention, and can not
It is construed to limitation of the present invention.Those skilled in the art of the present technique are appreciated that unless expressly stated, odd number shape used herein
Formula " one ", " one ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that the description of the present invention
The wording of middle use " includes " referring to there is described feature, integer, step, operation, element and/or assembly, but it is not excluded that
Exist or add other features one or more, integer, step, operation, element, assembly and/or their group.It should be understood that
When we claim element to be " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or
Intermediary element can also be there is.Additionally, " connection " used herein or " coupling " can include wireless connections or couple.Here make
Wording "and/or" include one or more any cell listing item being associated and all combinations.The art
Those of skill will appreciate that, unless otherwise defined, all terms used herein (including technical term and scientific terminology) have
With the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Should also be understood that the most general
Those terms defined in dictionary should be understood that have the meaning consistent with the meaning in the context of prior art, and
Unless defined as here, will not explain by idealization or the most formal implication.
The embodiment of the present invention provides a kind of distance host control system based on video acquisition, as it is shown in figure 1, include: remote
Journey main frame and local host, wherein:
Described distance host includes the video interface for exporting video signal.
Configuring video frequency collection card in described local host, described video frequency collection card is regarded by cable and described distance host
Frequently interface connects, and for gathering the video signal of described distance host output.
Described local host connects output display unit, and described output display unit is used for showing described video frequency collection card institute
The video signal of the described distance host output collected.Described local host configures hid gadget equipment, described hid
Gadget equipment is the gadget equipment being connected with described distance host by USB of hid type.Such as: a kind of by this landlord
The USB gadget equipment of the hid type of the software Virtual Realization on machine, described hid gadget equipment is by USB and remotely master
Machine be connected, hid gadget equipment specifically can be understood as a kind of by the USB of a HID type of software Virtual Realization from setting
Standby.
Described local host connects HID (Human Interface Device, the equipment the most mutual with people) input and sets
Standby, and in described distance host, enumerate the HID input equipment corresponding with described HID input equipment, with described local host
The control signal that sent of HID input equipment connected by the signal output interface of described hid gadget equipment to described far
The signal input interface transmission of journey main frame, and received by the HID input equipment enumerated in described distance host, described HID is defeated
Enter equipment and at least include HID mouse-keyboard equipment, such as conventional be connected with local host by USB interface mouse, keyboard.
Wherein, described video interface includes the interface of VGA, DVI or HDMI standard.Concrete, the letter of described local host
Number it is connected by USB line between output interface and the signal input interface of described distance host, described signal output interface and institute
Stating signal input interface is USB standard.The video signal that distance host exports can be led to by local host by video frequency collection card
Cross VGA (Video Graphics Array, Video Graphics Array), DVI (Digital Visual Interface, i.e. numeral
Video interface) or HDMI (High Definition Multimedia Interface, HDMI) collection
To local host.The application layer of local host by gather pattern drafting to apply window.The hid that local host creates
Gadget equipment, is connected to distance host by USB line, enumerates into hid key Mus equipment at distance host end.
It should be noted that disclosed distance host, local host, an independent computer can be become with implementation
Equipment, maybe can also be integrated in the various different computer equipment that can be realized man-machine interaction by input-output equipment,
Such as desktop computer, panel computer (Tablet Personal Computer), kneetop computer (Laptop Computer),
And possess the server apparatus etc. of human-computer interaction interface.
The distance host control system based on video acquisition that the embodiment of the present invention provides, configures video in local host
Capture card, video frequency collection card is connected with the video interface of distance host by cable, and for gathering regarding of distance host output
Frequently signal.Local host connects HID input equipment, and enumerates the HID input corresponding with HID input equipment in distance host
Equipment, the control signal that the HID input equipment being connected with local host is sent is exported by the signal of hid gadget equipment
Interface transmits to the signal input interface of distance host, and is received by the HID input equipment enumerated in distance host.So that
Interaction between local host and distance host can directly by the video interface of the standards such as VGA, DVI or HDMI and
USB interface, uses video frequency collection card directly to gather the display output of distance host, it is not necessary to take the Internet or LAN
The network bandwidth, and realize control to distance host by HID event filtering forwarding mechanism.Need relative in prior art
The picture of the distance host taking the network bandwidth shows and the transmission plan of key Mus event, and the present embodiment is remote owing to directly gathering
The video frequency output of journey main frame, so distance host need not that video signal is compressed coding and network transmits, drops greatly
Low to the network bandwidth and the requirement of distance host performance；And the control that the HID device such as mouse-keyboard are produced by the present embodiment
After course of event software processed filters, directly it is transmitted to distance host by USB, it is to avoid control event is in network transmission process
Time delay, improve the real-time responsiveness of remotely control.Image quality is being required higher, the application scenarios that the network bandwidth is limited
Under, it is possible to realize control remote host during efficient real.
The embodiment of the present invention also provides for a kind of distance host control method based on video acquisition, and described method is for above-mentioned
The system including distance host and local host as shown in Figure 1, as shown in Figure 2, described method includes:
The video signal that S1, described local host are exported by the described video frequency collection card described distance host of acquisition, and
The picture that video signal that described output display unit simultaneous display is gathered is corresponding.
S2, described local host obtain the HID event produced by described HID input equipment.
S3, produced HID event is carried out screening and filtering, by the HID event after screening and filtering to described distance host
Send.
So that described distance host performs corresponding operating according to the HID event received.
In the present embodiment, S1, the described video signal gathered in described output display unit simultaneous display are corresponding
The realization rate of picture, specifically includes:
The display interface of described local host is shown by described output display unit, and in the display of described local host
Interface divides and specifies display window.After receiving gathered video signal, in described appointment display window, show institute
Picture corresponding to video signal gathered.
Concrete, described produced HID event is carried out screening and filtering, including:
According to described HID event, determine that the user of described local host passes through described HID input equipment described landlord
The display interface of machine carries out the position operated.
Whether the position carrying out described in detection operating is captured by described appointment display window.The most then retain described HID thing
Part.If it is not, then filter described HID event, and performed corresponding operating by described local host according to described HID event.Such as: as
Shown in Fig. 3, local host obtains distance host display picture by video acquisition.When the application layer of local host receives this locality
HID event after, the HID events such as local mouse-keyboard are filtered by local host according to event target host, according to current burnt
Point window judges whether to need this event forwarding to distance host, if it is desired, then this event set by hid gadget
For being transmitted to distance host.Wherein, HID event can be specifically key Mus event, and key Mus event can be understood as user in this locality
When main frame is operated on local host by the HID input equipment such as keyboard, mouse, local host is raw according to the operation of user
Become the key Mus event of correspondence as HID event.If HID input equipment is other the input equipment such as touch screen, rocking bar, then local
Main frame can also use corresponding existing means to generate HID event.
The present embodiment also provides for one " the need of by this event forwarding to distance host " concrete discriminant approach, bag
Include: local host judges whether to need to distance host, this event forwarding is worked as mouse and KeyEvent according to current focus window
Captured by this window, will be processed by local host.When mouse and KeyEvent are captured by this window, it will be forwarded to the most main
Machine processes, thus realizes remotely controlling.Thus realize the control to distance host by HID event forwarding.
The distance host control method based on video acquisition that the embodiment of the present invention provides, configures video in local host
Capture card, video frequency collection card is connected with the video interface of distance host by cable, and for gathering regarding of distance host output
Frequently signal.Local host connects HID input equipment, and enumerates the HID input corresponding with HID input equipment in distance host
Equipment, the control signal that the HID input equipment being connected with local host is sent is exported by the signal of hid gadget equipment
Interface transmits to the signal input interface of distance host, and is received by the HID input equipment enumerated in distance host.So that
Interaction between local host and distance host can directly by the video interface of the standards such as VGA, DVI or HDMI and
USB interface, uses video frequency collection card directly to gather the display output of distance host, it is not necessary to take the Internet or LAN
The network bandwidth, and realize control to distance host by HID event filtering forwarding mechanism.Need relative in prior art
The picture of the distance host taking the network bandwidth shows and the transmission plan of key Mus event, and the present embodiment is remote owing to directly gathering
The video frequency output of journey main frame, so distance host need not that video signal is compressed coding and network transmits, drops greatly
Low to the network bandwidth and the requirement of distance host performance；And the control that the HID device such as mouse-keyboard are produced by the present embodiment
After course of event software processed filters, directly it is transmitted to distance host by USB, it is to avoid control event is in network transmission process
Time delay, improve the real-time responsiveness of remotely control.Image quality is being required higher, the application scenarios that the network bandwidth is limited
Under, it is possible to realize control remote host during efficient real.
Each embodiment in this specification all uses the mode gone forward one by one to describe, identical similar portion between each embodiment
Dividing and see mutually, what each embodiment stressed is the difference with other embodiments.Real especially for equipment
For executing example, owing to it is substantially similar to embodiment of the method, so describing fairly simple, relevant part sees embodiment of the method
Part illustrate.The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replace
Change, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claim
Enclose and be as the criterion.
Claims (8)
1. a distance host control system based on video acquisition, it is characterised in that including: distance host and local host；
Described distance host includes the video interface for exporting video signal；
Configuring video frequency collection card in described local host, described video frequency collection card is connect by the video of cable with described distance host
Mouth connects, and for gathering the video signal of described distance host output；
Described local host connects output display unit, and described output display unit is used for showing that described video frequency collection card is gathered
The video signal of the described distance host output arrived；
In described local host configure hid gadget equipment, described hid gadget equipment be hid type by USB and institute
State the gadget equipment that distance host is connected；
Described local host connects HID input equipment, and enumerates corresponding with described HID input equipment in described distance host
HID input equipment, the control signal that the HID input equipment being connected with described local host is sent pass through described hid
The signal output interface of gadget equipment transmits to the signal input interface of described distance host, and by institute in described distance host
The HID input equipment enumerated receives, and described HID input equipment at least includes HID mouse-keyboard equipment.
System the most according to claim 1, it is characterised in that described video interface includes VGA, DVI or HDMI standard
Interface.
System the most according to claim 1, it is characterised in that the signal output interface of described local host with described remotely
Being connected by USB line between the signal input interface of main frame, described signal output interface and described signal input interface are USB system
Formula.
4. a distance host control method based on video acquisition, it is characterised in that described method includes far for one
Journey main frame and the system of local host, wherein: described distance host includes the video interface for exporting video signal；Described
Configuring video frequency collection card in ground main frame, described video frequency collection card is connected with the video interface of described distance host by cable, and
For gathering the video signal of described distance host output；Described local host connects output display unit, described output display
The video signal of the described distance host output that equipment is collected for showing described video frequency collection card；In described local host
Configuration hid gadget equipment, described hid gadget equipment is being connected with described distance host by USB of hid type
Gadget equipment；Described local host connects HID input equipment, and enumerates in described distance host and input with described HID
The HID input equipment that equipment is corresponding, the control signal that the HID input equipment being connected with described local host is sent is by described
The signal output interface of hid gadget equipment transmits to the signal input interface of described distance host, and by described distance host
Middle enumerated HID input equipment receives, and described HID input equipment at least includes HID mouse-keyboard equipment；
Described method includes:
Described local host obtains the video signal of described distance host output by described video frequency collection card, and in described output
The picture that video signal that display device simultaneous display is gathered is corresponding；
Described local host obtains the HID event produced by described HID input equipment, and sieves produced HID event
Choosing is filtered, and the HID event after screening and filtering is sent to described distance host, in order to described distance host is according to receiving
HID event performs corresponding operating.
Method the most according to claim 4, it is characterised in that described gathered in described output display unit simultaneous display
Picture corresponding to video signal, including:
The display interface of described local host is shown by described output display unit, and at the display interface of described local host
Middle division specifies display window；
After receiving gathered video signal, the video signal that display is gathered in described appointment display window is corresponding
Picture.
Method the most according to claim 5, it is characterised in that described produced H I D event is carried out screening and filtering,
Including:
According to described HID event, determine that the user of described local host passes through described HID input equipment at described local host
Display interface carries out the position operated；
Whether the position carrying out described in detection operating is captured by described appointment display window；
The most then retain described HID event；If it is not, then filter described HID event, and by described local host according to described HID
Event performs corresponding operating.
Method the most according to claim 4, it is characterised in that described video interface includes VGA, DVI or HDMI standard
Interface.
Method the most according to claim 4, it is characterised in that the signal output interface of described local host with described remotely
Being connected by USB line between the signal input interface of main frame, described signal output interface and described signal input interface are USB system
Formula.
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| CN201610781422.6A CN106210665B (en) | 2016-08-31 | 2016-08-31 | Remote host control method and system based on video acquisition |
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| CN201610781422.6A CN106210665B (en) | 2016-08-31 | 2016-08-31 | Remote host control method and system based on video acquisition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108055267A (en) * | 2017-12-15 | 2018-05-18 | 联想(北京)有限公司 | A kind of data sharing method and terminal |
| CN111182000A (en) * | 2020-01-10 | 2020-05-19 | 北京首翼弘泰科技有限公司 | Method for remotely controlling computer through video acquisition and USB signal transmission |
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| US20100030853A1 (en) * | 2008-07-09 | 2010-02-04 | Aten International Co., Ltd. | Remote desktop control system using usb interface and method thereof |
| US20130007224A1 (en) * | 2011-06-30 | 2013-01-03 | Yuanjie Yang | Lightweight Method for Out-Of-Band Management of a Remote Computer with a Mirror of Remote Software Resources |
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| US6356968B1 (en) * | 1997-09-03 | 2002-03-12 | Cirrus Logic, Inc | Apparatus and method for transparent USB-to-1394 bridging and video delivery between a host computer system and a remote peripheral device |
| US20100030853A1 (en) * | 2008-07-09 | 2010-02-04 | Aten International Co., Ltd. | Remote desktop control system using usb interface and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108055267A (en) * | 2017-12-15 | 2018-05-18 | 联想(北京)有限公司 | A kind of data sharing method and terminal |
| CN111182000A (en) * | 2020-01-10 | 2020-05-19 | 北京首翼弘泰科技有限公司 | Method for remotely controlling computer through video acquisition and USB signal transmission |
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| CN106210665B (en) | 2022-04-12 |
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