CN103067449B - Data transmission set in remote service and method - Google Patents
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- CN103067449B CN103067449B CN201210540279.3A CN201210540279A CN103067449B CN 103067449 B CN103067449 B CN 103067449B CN 201210540279 A CN201210540279 A CN 201210540279A CN 103067449 B CN103067449 B CN 103067449B
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Abstract
The present invention relates to network data communication technical field, it discloses the data transmission set in remote service and method, this equipment includes: arrange unit, is suitable to the desktop background of controlled end is shown as monochromatic；Placement unit, is suitable to obtain display interface image；Blocking unit, being suitable to described display interface image division is at least two block；Data transfer unit, if being suitable to all desktop backgrounds in current block, then sends described monochromatic corresponding colour to described main control end；Flatness detector unit, if the color category being suitable to be comprised is at least three kinds, then judges the flatness of described block；Compression unit, is suitable to determine compress mode according to judged result, and is compressed described block with described compress mode；Compression data transfer unit, the data after being suitable to compression send main control end to.By means of the invention it is possible to reduce bandwidth shared during transmission controlled end background picture, improve the fluency of remote control operation.
Description
Technical field
The present invention relates to network data communication technical field, the data transmission being specifically related in remote service sets
Standby and method.
Background technology
Remotely control, refer to that management personnel or the system support staff etc. of computer equipment pass through the Internet
Connect the computer equipment of long-range controlled terminal, the desktop environment of controlled terminal computer equipment is shown
On the computer equipment of management personnel or assistance personnel etc., by local computer device to long-range
Controlled terminal computer equipment carries out the work such as system configuration, software installation procedure, failture evacuation.
The related work remotely controlled needs just can be carried out by network, and the computer equipment being located locally is
The issuing side of operational order, referred to as main control end, and long-range controlled terminal computer equipment is properly termed as being subject to
Control end, controlled end receives and performs operational order that main control end sends and performed at controlled end.Master control
End and controlled end can be in the computer equipment in same LAN, it is also possible to be connected into the Internet
It is in two or multi-section computer equipment of any position.The main control end the to be realized control to controlled end, logical
Often need client-side program to be installed in the computer equipment of main control end, in the computer equipment of controlled end
Build-in services device end program, during use, the client-side program of main control end is sent out to the server of controlled end
Go out signal, set up the link of a remote service, then by the link of this remote service, controlled end
By its desktop environment information such as (include on the background information of desktop and desktop) icons of display, transmission is also
Being shown to main control end, main control end sends the corresponding remote control command of various remote control functions, controls to be subject to
The computer equipment of control end performs remote control command, when the display interface of controlled end changes, also
Need the interface information after updating to be sent to main control end and require that it carries out corresponding frame updating and shows, with
This moves in circles, thus completes the work that various long-range control is relevant.
In prior art when to the desktop environment information of main control end transmission controlled end, it is common that directly to being subject to
The desktop of control end carries out sectional drawing, then the picture being truncated to is combined into data message and is sent to main control end.
But, carry out with the form of picture needing bigger bandwidth, due to main control end or controlled during the transmission of data
Holding the restriction of the actually used network bandwidth, remote control operation is often up to less than or is difficult to level off to stream
The smooth perfect condition run.
Summary of the invention
In view of the above problems, it is proposed that the present invention is to provide one to overcome the problems referred to above or at least partly
Ground solves the data transmission set in the remote service of the problems referred to above and the number during corresponding remote assistance
According to transmission method.
According to one aspect of the present invention, it is provided that
A kind of data transmission set in remote service, including:
Unit is set, is suitable to after setting up with main control end and remotely controlling to be connected, by the desktop back of the body of controlled end
Scape is shown as monochromatic；
Placement unit, is suitable to display interface based on described controlled end and carries out image-capture, obtains display circle
Face image；
Blocking unit, being suitable to described display interface image division is at least two block, by described block
It is identified as image waiting for transmission；
Data transfer unit, if being suitable to all desktop backgrounds in current block, then by right for described monochrome
The colour answered sends described main control end to, in order to main control end shows current block according to described colour；
Flatness detector unit, if being suitable to the color category included in current block to be at least three kinds,
Then the flatness of described block is judged；
Compression unit, is suitable to determine the compress mode to described current block according to judged result, and with institute
State compress mode view data corresponding to described block to be compressed；
Compression data transfer unit, the view data after being suitable to compression sends described main control end to, in order to
Main control end shows described current block according to the view data after described compression.
Alternatively, also include:
Indexing units, if being suitable to the color category included in current block is two kinds, then to two kinds of face
Color is indexed respectively；
Encoding performing unit, is suitable to the index value so that two kinds of colors are corresponding respectively and carries out described current block
Coding；
Coding delivery unit, is suitable to encode result, and described index value pass corresponding with color colour
System sends described main control end to；So that main control end is according to described coding result, and described index value and face
The corresponding relation of color colour, shows described current block.
Alternatively, also include:
Recovery unit, is suitable to the instruction according to main control end or at preset time point, by the desktop of controlled end
Background recovery is initial condition.
Alternatively, the described unit that arranges includes:
Acquisition of information subelement, is suitable to after setting up with main control end and remotely controlling to be connected, acquisition controlled end
Desktop background information, and described desktop background information is saved in the registry file specified；
Subelement is set, is suitable to, according to preset color value, the desktop background of described controlled end is set to list
Color；
Described recovery unit includes:
Information reading sub-unit, is suitable to, at preset time point, read in the described registry file specified
The desktop background information preserved；
Recover subelement, for the desktop background according to the desktop background Information recovering controlled end read
Arrange.
Alternatively, described desktop background information includes desktop background picture and the display side thereof that controlled end uses
Formula, described display mode includes stretching, placed in the middle or tiling, and described acquisition of information subelement includes:
The first system function call subelement, is suitable to the application programming provided by call operation system
Interface api function, obtains the path of the desktop background picture that controlled end uses；
Registration table reads subelement, is suitable to the registration table by reading system and obtains controlled end desktop background figure
The display mode of sheet；
Described recovery subelement includes:
Registry Modifications subelement, is suitable to the registration according to the desktop background information amendment system read
Table information；
Second system function call subelement, is suitable to notify operation by the api function of call operation system
System refreshes the desktop background of controlled end based on amended registration table key assignments.
Alternatively, also include:
Information deletion unit, is suitable to, after the desktop background of controlled end is arranged, delete the described note specified
The desktop background information preserved in volume list file；
Described information reading sub-unit is particularly adapted to:
Remotely control to connect disconnect time, remote control program exit time or remote control program restart
Time, read the described registry file specified, if the described registry file specified is not for empty, then read
The desktop background information wherein preserved described in taking, and trigger described recovery subelement according to the table read
Face background information is recovered the desktop background of controlled end and is arranged.
Alternatively, also include:
Monitoring unit, is suitable to the display interface according to prefixed time interval intermittent scanning controlled end；
Updating block, is suitable to monitor the color change comprised in one or more described blocks in scanning every time,
Color index value after the block coordinate that will change, and change, is sent to main control end, in order to main
Control end, according to described coordinate and color index value, described index value and the corresponding relation of color colour, shows
Show one or more blocks of correspondence.
Alternatively, also include:
Tip element, is suitable to when the desktop background of controlled end is shown as monochrome, the corresponding prompting of display
Information.
According to a further aspect in the invention, it is provided that the data transmission method in a kind of remote service, including:
After setting up with main control end and remotely controlling to be connected, the desktop background of controlled end is shown as monochrome；
Display interface based on described controlled end carries out image-capture, obtains display interface image；
It is at least two block by described display interface image division, described block is identified as to be passed
Defeated image；
If all desktop backgrounds in current block, then described monochromatic corresponding colour is sent to described
Main control end, in order to main control end shows current block according to described colour；
If the color category included in current block is at least three kinds, then the flatness to described block
Judge；
The compress mode to described current block is determined according to judged result；
It is compressed with described compress mode view data corresponding to described block；
Send the view data after compression to described main control end, in order to after main control end is according to described compression
View data shows described current block.
Alternatively, also include:
If the color category included in current block is two kinds, then two kinds of colors are indexed respectively；
With the index value that two kinds of colors are corresponding respectively, described current block is encoded；
Result will be encoded, and the corresponding relation of described index value and color colour will send described main control end to；
So that main control end is according to described coding result, and the corresponding relation of described index value and color colour, aobvious
Show described current block.
Alternatively, also include:
Indicating or at preset time point according to main control end, reverts to original by the desktop background of controlled end
State.
Alternatively, described after setting up with main control end and remotely controlling to be connected, by the desktop background of controlled end
It is shown as monochrome to include:
After setting up with main control end and remotely controlling to be connected, obtain the desktop background information of controlled end, and general
Described desktop background information is saved in the registry file specified；
According to preset color value, the desktop background of described controlled end is set to monochrome；
Described at preset time point, the desktop background of controlled end is reverted to original shape and includes:
At preset time point, read the desktop background information preserved in the described registry file specified；
Desktop background according to the desktop background Information recovering controlled end read is arranged.
Alternatively, described desktop background information includes desktop background picture and the display side thereof that controlled end uses
Formula, described display mode includes stretching, placed in the middle or tiling, the desktop background information of described acquisition controlled end
Including:
The application programming interface api function provided by call operation system, is obtained controlled end and uses
The path of desktop background picture；
The display mode of controlled end desktop background picture is obtained by reading the registration table of system；
The described desktop background according to the desktop background Information recovering controlled end read arranges and includes:
Registry information according to the desktop background information amendment system read；
Notify that operating system is based on amended registration table key assignments brush by the api function of call operation system
The desktop background of new controlled end.
Alternatively, also include:
After the desktop background of controlled end is arranged, delete the table preserved in the described registry file specified
Face background information；
Described at preset time point, read the desktop background letter preserved in the described registry file specified
Including:
Remotely control to connect disconnect time, remote control program exit time or remote control program restart
Time, read the described registry file specified, if the described registry file specified is not for empty, then read
The desktop background information wherein preserved described in taking, and trigger according to the desktop background Information recovering read
The desktop background of controlled end is arranged.
Alternatively, also include:
Display interface according to prefixed time interval intermittent scanning controlled end；
The color change comprised in one or more described blocks in monitoring scanning every time, by change
Color index value after block coordinate, and change, is sent to main control end, in order to main control end is according to described
Coordinate and color index value, described index value and the corresponding relation of color colour, show corresponding one
Or multiple block.
Alternatively, also include:
When the desktop background of controlled end is shown as monochrome, show corresponding information.
According to the data transmission set in the remote service of the present invention, can by arrange unit controlled end with
Main control end is set up after remotely controlling to connect, and the desktop background of controlled end is shown as monochromatic；Single by capturing
After unit and blocking unit determine image waiting for transmission, if all desktop background in current block, then
Directly monochromatic corresponding colour is sent to main control end, such that it is able to make main control end root by data transfer unit
According to the desktop background of the colour display controlled end transmitted, make the desktop background figure that controlled end transmits to main control end
Sheet is substituted by the colour that data volume is relatively small, it is possible to from controlled end to master control in reduction remote control process
The data volume of end transmission.And if that includes the color of more than three kinds in current block, then can be by putting down
The flatness of image in block is judged by slip detector unit, and selects suitable compression of images accordingly
Mode, is sent to main control end by compression data transfer unit after compression.Thus solve remote control process
Middle transmission controlled end background picture takies the problem of massive band width, achieves reduction transmission controlled end Background
Bandwidth shared during sheet, improves the beneficial effect of the fluency of remote control operation.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the skill of the present invention
Art means, and can being practiced according to the content of description, and in order to allow, the present invention's is above and other
Objects, features and advantages can become apparent, below especially exemplified by the detailed description of the invention of the present invention.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred implementation, various other advantage and benefit for this
Field those of ordinary skill will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation,
And it is not considered as limitation of the present invention.And in whole accompanying drawing, be denoted by the same reference numerals
Identical parts.In the accompanying drawings:
Fig. 1 shows the flow chart of method according to an embodiment of the invention；
Fig. 2 shows the schematic diagram of equipment according to an embodiment of the invention；
Fig. 3 shows the schematic diagram of equipment in accordance with another embodiment of the present invention；And,
Fig. 4 shows the schematic diagram of the equipment according to further embodiment of the present invention.
Detailed description of the invention
It is more fully described the exemplary embodiment of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows
The exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure and not
Should be limited by embodiments set forth here.On the contrary, it is provided that these embodiments are able to more thoroughly
Understand the disclosure, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
See Fig. 1, embodiments provide the data transmission method in a kind of remote service, the method
May comprise steps of:
S101: after setting up with main control end and remotely controlling to be connected, the desktop background of controlled end is shown as
Monochromatic；
In embodiments of the present invention, it is contemplated that what the display interface data of controlled end were transmitted to main control end
During, data are the desktop backgrounds representing controlled end actually greatly, and generally,
Desktop background may be set to complex picture by controlled end user, transmits such image data
Time, it is necessary to take bigger transmission bandwidth.But it practice, the desktop background of controlled end is for remotely association
Help operation in fact entirely without meaning, therefore, transmit transmission bandwidth shared on desktop background picture
Actually one waste.If able to reduce this part data, then can be greatly saved transmission bandwidth
Take, also do not interfere with being normally carried out of remote assistance service simultaneously.To this end, in embodiments of the present invention,
After setting up with main control end and remotely controlling to be connected, it is not that directly display interface to controlled end is carried out section
Figure, but first the desktop background of controlled end is shown as monochromatic, carry out the transmission of image the most again.This
Sample, will make the display interface of controlled end become fairly simple, carry out on simple displaying interface basis
Sectional drawing and then when encoding picture, the quantity of information of needs will be fewer, and then is carrying out datagram
Literary composition transmission time, the transmission bandwidth taken also will be fewer.
Wherein, when the desktop background of controlled end is set to monochrome, concrete color value can be any
, for example, it may be black etc..When implementing, can be by table corresponding in edit the registry
The mode of item, realizes being set to desktop background the monochrome of certain color value.Such as, registry entry
HKEY_CURRENT_USER Control Panel the key assignments of Wallpaper under Desktopd represent
The filename of the picture that desktop background uses, therefore, in order to change by desktop background as monochromatic value into, the most just
The key assignments of this registry entry can be changed into sky, thus so that desktop background picture is nothing, that is,
Any pictures is not set to desktop background picture；Meanwhile, edit the registry item can be passed through
HKEY_CURRENT_USER Control Panel the key assignments of Background under Colors, will
Desktop background color is set to required color.Wherein, the key assignments of Background is character string type,
This character string is divided into three sections, and using " space " as separator between every section, three segment datas represent three respectively
The value of primary colors, namely red R, green G, blue B, the span of every segment data be 0 to
255, therefore, it can by the numerical value corresponding for three section inputs, it is possible to realize desktop background color
Amendment.Such as, be set to " 000 " by the key assignments of Background, then desktop background will display
For black, be set to " 25500 " by the key assignments of Background, then desktop background will be displayed as red
Color, etc..In actual applications, the color value of desktop background can arbitrarily select.Certainly, specifically
When realizing, the program of correspondence can be write at remote assistance instrument in advance, and set institute in a program
Need the rgb value of desktop background color, then revised the registry entry of system, Ji Keshi by this program
Existing the most above-mentioned controlled end desktop background is set to monochrome.
It should be noted that be only used to remotely owing to the desktop background of controlled end is changed into monochrome
Reduce during assistance services and transmission bandwidth is taken, therefore, after remote assistance process terminates,
Automatically the state before desktop background can also being returned to, and desktop background is being changed into monochrome
After, it is also possible to prompting user, " so that the process of remote assistance is more smooth, need to carry on the back its desktop
Scape temporarily changes certain color into, completes automatically recover afterwards at remote assistance ", etc..Or, also
Can ask the user whether before modification to allow desktop background is carried out provisional amendment, if user
Agree to amendment, then its desktop background is modified.
In order to automatically desktop background to be returned to the state before amendment, desktop background is being set to
Before monochrome, it is also possible to obtain the desktop background information of controlled end, and be saved into a note specified
In volume list file.Wherein, so-called desktop background information, the picture that desktop background uses can be included
Path, and the display mode (between two parties, tile or stretch) of background picture, that is, need to know
Before modification, desktop background uses that width picture, this picture be with placed in the middle, tile or stretch
Mode show, these information are saved in a registry file.Then, table is recovered at needs
When face background is arranged, it is possible to read out the desktop background information preserved in this registry file, then
By using these information to reset the desktop background of controlled end.
Wherein, specifically when obtaining desktop background information, the note can specified by reading registration table to obtain
The key assignments of volume list item, gets the display mode of desktop background picture according to this key assignments, meanwhile, permissible
The API(Application Programming Interface provided by call operation system, application program is compiled
Journey interface) mode of function, obtain the storing path of desktop background picture, namely know that controlled end makes
Be any width picture.Such as, by read HKEY_CURRENT_USER Control
Panel the key assignments of WallpaperStyle and TileWallpaper the two registry entry under Desktop,
The display mode that desktop background picture uses can be got.Such as, if the key assignments of TileWallpaper
Being 0, the key assignments of WallpaperStyle is also 0, then the display mode representing desktop background picture is placed in the middle；
If the key assignments of TileWallpaper is 1, the key assignments of WallpaperStyle is 0, then represent desktop background
The display mode of picture is tiling；If the key assignments of TileWallpaper is 0, the key of WallpaperStyle
Value is 2, then the display mode representing desktop background picture is stretching.Therefore, by reading the two registration
The key assignments of list item, i.e. would know which kind of display mode current desktop background picture uses.
Meanwhile, the guarantor of desktop background picture can by the way of the API that calling system provides, be obtained
Deposit path.This api function can be SystemParametersInfo, SystemParametersInfo function
Can be used to inquiry or system-level parameters is set, can get, by this function, the desktop that controlled end uses
The path of background picture.
After the path getting desktop background picture and display mode, it is possible to these information are protected
Exist in a registry file (file with reg as suffix name).So, when needing controlled end
When desktop background returns to the state before amendment, it is possible to read out preservation from this registry file
Desktop background information, then with these information revise correspondence registry entry key assignments (for example, it is possible to
Including TileWallpaper, WallpaperStyle, Wallpaper, ConvertedWallpaper and
The value of OriginalWallpaper), then calling system provide api function notify operating system based on
Amended registration table key assignments refreshes the desktop background of controlled terminal, it is possible to make the desktop background of controlled end
Return to the state before amendment.Such as, SystemParametersInfo function is equally called, by it
Parameter is set to SPI_SETDESKWALLPAPER, can notify that operating system uses amended
Registration table key assignments arranges desktop background picture.
Wherein, when implementing, the time point recovering desktop background information can have multiple.Such as,
After completing a remote control service, perform to recover the operation of desktop background information.Wherein,
The event remotely controlling to be connected can will be disconnected as the mark completing remote control service with main control end,
And, receive disconnect with between main control end when remotely controlling the message being connected, be first carried out extensive
The operation of multiple desktop background information, disconnects the connection between main control end the most again.Or, it is also possible to
Will move out the event of remote control program as completing the mark of remote control service, that is, when receiving
To when exiting the message of remote control program (namely after the connection disconnected between main control end, example
When clicking on the X button of controlled end remote control program such as user), it is first carried out recovering desktop background
The operation of information, terminates the remote control program of controlled end the most again.
Certainly, if the event remotely controlling to be connected will be disconnected with main control end or exits and remotely control journey
The event of sequence is as the trigger event of recovery desktop background, and the most once remote control program is at running
In break down and cause abnormal exiting, then desktop background will be unable to automatically restore to initial condition.In order to keep away
Exempt from the generation of this situation, multiple time point for recovering can be set, for example, it is possible to include remotely
Control to connect when disconnecting, remote control program when exiting, remote control program be when starting next time, etc.；
And if the recovery of desktop background is completed at any one time point, just will registry file preserve
Desktop background information deletion.So, whether each time point just can be by judging in registry file
For sky, judge whether to have performed the recovery operation of desktop background, if sky, then proved
Execution over recovery operates, then be not repeated to perform recovery operation, if not being empty, then proves to have not carried out
Recovery operation, the most just can perform recovery operation.For example, it is assumed that remote control program is made due to fault
Become abnormal exiting, have not carried out the recovery operation of desktop background, then when remote control program starts next time,
Find that registry file is not empty, it is possible to prove that desktop background is not yet recovered, and according to registry file
The information of middle preservation performs concrete recovery operation.
The above is to be determined, in the recovery when carrying out desktop background, to apply in reality by controlled end oneself
In, owing to concrete operation of assisting sends in main control end, controlled end is only carried out what main control end sent
Instruction, main control end is easier to know when what remote assistance service can terminate.Therefore, it is possible to
With by main control end to controlled end send recover instruction, such controlled end can receive main control end instruction it
After, the desktop background of controlled end is reverted to initial condition.Wherein, the recovery instruction that main control end sends,
Can manually be sent by main control end user, such as, complete the institute of this time service main control end user
After having operation, first can send an instruction recovering desktop background to controlled end, end to be controlled is complete
After becoming the recovery operation of desktop background, then send instructions such as disconnecting.Certainly, main control end can also
Be send disconnect instruction while or afterwards, send recover desktop background instruction, etc..
S102: display interface based on described controlled end carries out image-capture, obtains display interface image；
S103: be at least two block by described display interface image division, determines respectively by described block
For image waiting for transmission；
After the desktop background of controlled end is set to monochrome, it is possible to determine image waiting for transmission,
The embodiment of the present invention can combine with the block transmission of image.Image is carried out during remote assistance
During transmission, it will usually use the subregion update mode of picture to carry out the renewal of image, say, that
Equally for reducing the consideration of transmission bandwidth, if controlled end find with on compared with a moment, screen
In the image of only subregion there occurs change, other region is constant, then can only this part be sent out
The area image having given birth to conversion is transferred to main control end.Update to realize this subregion, it usually needs
Image is carried out piecemeal, namely before being transmitted, first divides the image into block one by one, the most again
These blocks are encoded respectively, and coding information and the coordinate of each block (are included each district
The origin coordinates of block, the high pixel value of shared width, etc.) it is sent to main control end, in main control end according to respectively
The coding information of individual block is converted into picture, and is combined each block according to respective coordinate figure,
Obtain complete image, thus show the display interface of controlled terminal.Controlled end at subsequent time to display
After interface sectional drawing obtains image, in the same way image can be carried out piecemeal, then with upper one
Block on moment correspondence position compares, and is only encoded by the block that conversion occurs, and will obtain
Data message and coordinate corresponding to block be sent to main control end, with a upper moment than the district not changed
Block then can repeat and be sent to main control end.The district changed that main control end can will be newly received
Block is combined according to respective coordinate with the block not changed originally received, and obtains complete
Image, by that analogy.
And in embodiments of the present invention, after the desktop background of controlled end is set to monochrome, equally may be used
It is multiple block with the display interface image that will grab according to certain model split, then by each district
Block is as image waiting for transmission, and then encodes each block, re-sends to main control end afterwards.
It should be noted that about specifically the most how image being carried out piecemeal, and how to determine each block
Coordinate, wide high, may refer to the implementation in prior art, I will not elaborate.
S104: if all desktop background in current block, then by described monochromatic corresponding colour transmission
To described main control end, in order to main control end shows current block according to described colour；
After determining image waiting for transmission, it is possible to image to be transmitted is encoded, by obtain
Data message is sent to main control end, in order to demonstrate the display interface of controlled end in main control end.Wherein, as
Image the most waiting for transmission includes whole desktop backgrounds, the most just can be by the monochromatic correspondence of desktop background
Colour sends main control end to.Wherein, in the case of combining image block transmission, effect is particularly evident.
This is because, generally, having the biggest area in display interface is desktop background, such as, as
Really user is not turned on any program window, then may be only aobvious in positions such as left sides in the display interface of user
Showing some icons, at bottom display START button and status bar, remainder is the desktop back of the body
Scape；After so display interface image being carried out piecemeal, in each block obtained, it is possible to have the biggest
A part of block is all only to include desktop background, therefore, for such block, as long as by this district
For the coordinate of block and the colour of desktop background are sent to main control end, and need not each in this block again
Individual pixel encodes, and therefore, is greatly saved amount of coded data, and then saves transmission bandwidth.
And for not only comprising the block of desktop background, the embodiment of the present invention also provides accordingly
Method for encoding images, takies transmission bandwidth to reduce as far as possible.Concrete, can wrap in block
The color category contained judges, if the color value comprised in certain block is more than three kinds, then and can be to district
The flatness of block image judges, then it is judged that result determines the compress mode of this block, with this
The image of this block is compressed by suitable compress mode, then the view data after compression is sent to
Main control end, in order to main control end is according to the view data display current block after compression.Such as, if smoothed
Then with JPEG(Joint Photographic Experts Group, joint image expert group) algorithm carries out
Compression, if unsmooth, is compressed with ZIP algorithm.Wherein, so-called smoothing is with the most relative
Concept, smooth to refer in image the excessive ratio of color between each image shallower, and entire image is drawn
Face ratio is milder, edge boundary the most clearly, etc..When judging whether piece image smooths,
Whether less than a threshold value, (its value is permissible to may determine that in image the summation of the color distortion of adjacent image point
Set according to the actual needs or adjust), if it is less, prove that this image is smoother, and then
The jpeg algorithm being more suitable for smoothed image can be selected to be compressed；Otherwise this image is unsmooth, namely ratio
Relatively sharp-pointed, and then the ZIP algorithm being more suitable for unsmooth image can be selected to be compressed.Certainly, due to
The image compression algorithm that different blocks uses may be different, therefore, in order to main control end can correctly solve
Code, it is also possible to while the data message after main control end transmission compression, carry the figure of corresponding block
As compression algorithm, in order to main control end utilizes corresponding decompression algorithm, recover corresponding tile images.
Wherein, ZIP is a kind of lossless compress mode, and for the image determined, its compression factor is identical
's；But jpeg algorithm then can require to adjust its compression factor according to different compression qualities, and,
In the case of identical compression quality, smoothness is inversely proportional to compression factor, that is, using JPEG to calculate
When smooth image is compressed by method, if required compression quality is certain, then can be according to image
Smoothness selects the compression factor of jpeg algorithm, if the smoothness of image is the highest, then can use more
Low compression factor, otherwise, if the smoothness of image is the lowest, the compression factor the most also used is the highest.
It addition, in the case of identical compression factor, image compression quality is directly proportional to Image Smoothness, also
That is, Image Smoothness is the highest, then image compression quality is the highest.
It should be noted that specifically in judging a block during quantity of that color value comprised, can
With each pixel in traversal region, when learning the color value of first pixel, this color value is preserved
In a color value table, after learning the color value of next pixel, first determine whether in color value table
Whether there is this color value, if not at the exterior and the interior, then represent and find a new color, simultaneously this
Color value is inserted into color value the exterior and the interior, if suffered at color value table, then continues traversal, with this type of
Push away, finally just can learn and a block comprises how many pixel values altogether.Certainly, as it was noted above,
If it find that a block comprises the color value of more than three, just use and judge that the mode of smoothness is selected
Select and send after compression algorithm is compressed, therefore, during traversal, when find three kinds of color value it
After, it is possible to stop traversal, to save the operating time.
In actual applications, concrete execution step may comprise steps of S105 to S107:
S105: if the color category included in current block is at least three kinds, then to described block
Flatness judges；
S106: determine the compress mode to described current block according to judged result, and with described compression side
Formula view data corresponding to described block is compressed；
S107: send the view data after compression to described main control end, in order to main control end is according to described pressure
View data after contracting shows described current block.
If additionally, only two kinds of colors in certain block, then two kinds of colors can be indexed respectively,
Then with the index value that two kinds of colors are corresponding respectively, described current block is encoded, then result will be encoded,
And the corresponding relation of index value and color value sends main control end to, such main control end just can be according to coding
As a result, and the corresponding relation of index value and color value, demonstrate current block.Such as, getting
After two kinds of color value, one of which color value can be represented with 0, represent another kind of color value with 1, so
Index with 0 and 1 afterwards, by block from top to bottom the order of a line a line each pixel is encoded,
For each pixel, if the first color value is just encoded into 0, if the second color value is just
It is encoded into 1.So, index value only has one, and the color value that index value is corresponding can be 24, because
Color value needs the concrete value by RGB represents specially what color.Namely have a talk about,
Under this mode, it is not required to encode each pixel by the color value of 24, but only uses
Each pixel is encoded by the index value of 1, the color value that two index values are corresponding is respectively sent out simultaneously
Give main control end.In other words, it is assumed that certain block has 10,000 pixels, if the most each pixel
Encode by the color value of 24, then the data volume after coding is at least 240,000 bits, and if
The coded system provided according to the embodiment of the present invention, the data volume after coding is only 10,000 bits, and additionally
Have only to the data by tens bits and can represent the corresponding relation between encoded radio and color value, can
Seeing, this mode greatly reduces the data volume needed for picture coding, and then saves transmission bandwidth.
In a word, after controlled end desktop background is set to monochrome, can the most to the greatest extent may be used
Transmission bandwidth is taken by the reduction of energy.When the data-message transmission of controlled end is to after main control end, master control
Data message just can be resolved by end, and restores the image of controlled end display interface.Meanwhile, exist
Controlled end, also can monitor scanning every time according to the display interface of prefixed time interval intermittent scanning controlled end
In the color change that comprises in one or more described blocks, the block coordinate that will change, Yi Jibian
Picture coding result after change, is sent to main control end, in order to main control end is compiled according to described coordinate and image
Code result, one or more blocks that display is corresponding.
Corresponding with the data transmission method in the remote service described in the embodiment of the present invention, the present invention implements
Example additionally provides the data transmission set in a kind of remote service, sees Fig. 2, and this equipment can be configured in
The controlled end of remote assistance service system, this equipment specifically may include that
Unit 201 is set, is suitable to after setting up with main control end and remotely controlling to be connected, by the desktop of controlled end
Background is shown as monochromatic；
Placement unit 202, is suitable to display interface based on described controlled end and carries out image-capture, obtain display
Interface image；
Blocking unit 203, being suitable to described display interface image division is at least two block, by described district
Block is identified as image waiting for transmission；
Data transfer unit 204, if being suitable to all desktop backgrounds in current block, then by described monochrome
Corresponding colour sends described main control end to, in order to main control end shows current block according to described colour；
Flatness detector unit 205, if being suitable to the color category included in current block to be at least three kinds,
Then the flatness of described block is judged；
Compression unit 206, is suitable to determine the compress mode to described current block according to judged result, and with
Described compress mode view data corresponding to described block is compressed；
Compression data transfer unit 207, the view data after being suitable to compression sends described main control end to, with
Just main control end shows described current block according to the view data after described compression.
Wherein, if comprising two kinds of colors in certain block, then seeing Fig. 3, this equipment can also include:
Indexing units 208, if being suitable to the color category included in current block is two kinds, then to two kinds
Color is indexed respectively；
Encoding performing unit 209, is suitable to the index value so that two kinds of colors are corresponding respectively and enters described current block
Row coding；
Coding delivery unit 210, is suitable to encode result, and described index value is corresponding with color colour
Relation sends described main control end to；So that main control end is according to described coding result, and described index value with
The corresponding relation of color colour, shows described current block.
In order to after remote assistance service terminates, the desktop background of controlled end is returned to original shape
State, in actual applications, sees Fig. 4, and this equipment can also include:
Recovery unit 211, is suitable to, at preset time point, the desktop background of controlled end be reverted to original shape
State.
When implementing, in order to realize above-mentioned recovery process, the described unit 201 that arranges includes:
Acquisition of information subelement, is suitable to after setting up with main control end and remotely controlling to be connected, acquisition controlled end
Desktop background information, and described desktop background information is saved in the registry file specified；
Subelement is set, is suitable to, according to preset color value, the desktop background of described controlled end is set to list
Color；
Described recovery unit 211 specifically may include that
Information reading sub-unit, is suitable to the instruction according to main control end or at preset time point, reads institute
State the desktop background information preserved in the registry file specified；
Recover subelement, for the desktop background according to the desktop background Information recovering controlled end read
Arrange.
Wherein, described desktop background information includes desktop background picture and the display mode thereof that controlled end uses,
Described display mode includes stretching, placed in the middle or tiling, and described acquisition of information subelement includes:
The first system function call subelement, is suitable to the application programming provided by call operation system
Interface api function, obtains the path of the desktop background picture that controlled end uses；
Registration table reads subelement, is suitable to the registration table by reading system and obtains controlled end desktop background figure
The display mode of sheet；
Described recovery subelement includes:
Registry Modifications subelement, is suitable to the registration according to the desktop background information amendment system read
Table information；
Second system function call subelement, is suitable to notify operation by the api function of call operation system
System refreshes the desktop background of controlled end based on amended registration table key assignments.
Additionally, this equipment can also include:
Information deletion unit, is suitable to, after the desktop background of controlled end is arranged, delete the described note specified
The desktop background information preserved in volume list file；
Described information reading sub-unit is particularly adapted to:
Remotely control to connect disconnect time, remote control program exit time or remote control program restart
Time, read the described registry file specified, if the described registry file specified is not for empty, then read
The desktop background information wherein preserved described in taking, and trigger described recovery subelement according to the table read
Face background information is recovered the desktop background of controlled end and is arranged.
During remote assistance, this equipment can also include:
Monitoring unit, is suitable to the display interface according to prefixed time interval intermittent scanning controlled end；
Updating block, is suitable to monitor the color change comprised in one or more described blocks in scanning every time,
Color index value after the block coordinate that will change, and change, is sent to main control end, in order to main
Control end, according to described coordinate and color index value, described index value and the corresponding relation of color colour, shows
Show one or more blocks of correspondence.
Additionally, this equipment can also include:
Tip element, is suitable to when the desktop background of controlled end is shown as monochrome, the corresponding prompting of display
Information.
In a word, in the equipment of the data transmission during the remote assistance that the embodiment of the present invention provides, can
With by arranging unit 201 after controlled end is set up with main control end and remotely to be controlled to be connected, by the table of controlled end
Face background is shown as monochromatic；After being determined image waiting for transmission by placement unit 202 and blocking unit 203,
If all desktop backgrounds in current block, then by data transfer unit 204 directly by monochromatic correspondence
Colour sends main control end to, such that it is able to make main control end according to the desktop back of the body of the colour display controlled end transmitted
Scape, the desktop background picture making controlled end transmit to main control end is substituted by the colour that data volume is relatively small,
The data volume transmitted to main control end in remote control process can be reduced from controlled end.And if current block
In that includes the color of more than three kinds, then can be by flatness detector unit 205 to image in block
Flatness judges, and is selected suitable compression of images mode accordingly by compression unit 206, after compression
It is sent to main control end by compression data transfer unit 207.Thus solve transmission in remote control process to be subject to
Control end background picture takies the problem of massive band width, achieves during reduction transmission controlled end background picture shared
Bandwidth, improve the beneficial effect of fluency of remote control operation.
Algorithm and display be not solid with any certain computer, virtual system or miscellaneous equipment provided herein
Have relevant.Various general-purpose systems can also be used together with based on teaching in this.As described above,
Construct the structure required by this kind of system to be apparent from.Additionally, the present invention is also not for any specific
Programming language.It is understood that, it is possible to use various programming languages realize the content of invention described herein,
And the description done language-specific above is the preferred forms in order to disclose the present invention.
In description mentioned herein, illustrate a large amount of detail.It is to be appreciated, however, that this
Inventive embodiment can be put into practice in the case of not having these details.In some instances, not
It is shown specifically known method, structure and technology, in order to do not obscure the understanding of this description.
Similarly, it will be appreciated that in order to simplify the disclosure and help understand in each inventive aspect one
Or multiple, above in the description of the exemplary embodiment of the present invention, each feature of the present invention is sometimes
It is grouped together in single embodiment, figure or descriptions thereof.But, should be by the disclosure
Method be construed to reflect an intention that i.e. the present invention for required protection require ratio in each claim
The middle more feature of feature be expressly recited.More precisely, as the following claims reflect
As, inventive aspect is all features less than single embodiment disclosed above.Therefore, it then follows
Claims of detailed description of the invention are thus expressly incorporated in this detailed description of the invention, the most each right
Requirement itself is all as the independent embodiment of the present invention.
Those skilled in the art are appreciated that and can carry out the module in the equipment in embodiment certainly
Change adaptively and they are arranged in one or more equipment different from this embodiment.Permissible
Module in embodiment or unit or assembly are combined into a module or unit or assembly, and in addition may be used
To put them into multiple submodule or subelement or sub-component.Except such feature and/or process or
Outside at least some in unit excludes each other, can use any combination that (this specification is included companion
With claim, summary and accompanying drawing) disclosed in all features and so disclosed any method or
All processes of person's equipment or unit are combined.Unless expressly stated otherwise, this specification (includes companion
With claim, summary and accompanying drawing) disclosed in each feature can by provide identical, equivalent or phase
Replace like the alternative features of purpose.
Although additionally, it will be appreciated by those of skill in the art that embodiments more described herein include it
Some feature included in its embodiment rather than further feature, but the group of the feature of different embodiment
Close and mean to be within the scope of the present invention and formed different embodiments.Such as, in following power
In profit claim, one of arbitrarily can mode making in any combination of embodiment required for protection
With.
The all parts embodiment of the present invention can realize with hardware, or to process at one or more
The software module run on device realizes, or realizes with combinations thereof.Those skilled in the art should
Understand, microprocessor or digital signal processor (DSP) can be used in practice to realize according to this
Some or all parts in data transmission set in the remote service of inventive embodiments some or
Repertoire.The present invention is also implemented as the part for performing method as described herein or complete
The equipment in portion or device program (such as, computer program and computer program).Such reality
The program of the existing present invention can store on a computer-readable medium, or can have one or more
The form of signal.Such signal can be downloaded from internet website and obtain, or on carrier signal
There is provided, or provide with any other form.
The present invention will be described rather than limits the invention to it should be noted above-described embodiment,
And those skilled in the art can design replacement in fact without departing from the scope of the appended claims
Execute example.In the claims, should not will be located in any reference marks between bracket to be configured to right is wanted
The restriction asked.Word " comprises " and does not excludes the presence of the element or step not arranged in the claims.It is positioned at
Word "a" or "an" before element does not excludes the presence of multiple such element.The present invention is permissible
By means of including the hardware of some different elements and realizing by means of properly programmed computer.?
If listing in the unit claim of equipment for drying, several in these devices can be by same
Hardware branch specifically embodies.Word first, second and third use do not indicate that any order.
Can be title by these word explanations.
The application can apply to computer system/server, and they can be with other universal or special calculating numerous
System environments or configuration operate together.Be suitable to be used together with computer system/server is well-known
The example of calculating system, environment and/or configuration includes but not limited to: personal computer system, server meter
Calculation machine system, thin client, thick client computer, hand-held or laptop devices, system based on microprocessor,
Set Top Box, programmable consumer electronics, NetPC Network PC, minicomputer system mass computing
Machine system and the distributed cloud computing technology environment including any of the above described system, etc..
Computer system/server can be in the computer system executable instruction performed by computer system
Describe under the general linguistic context of (such as program module).Generally, program module can include routine, program,
Target program, assembly, logic, data structure etc., they perform specific task or realize specific
Abstract data type.Computer system/server can be implemented in distributed cloud computing environment, distribution
In formula cloud computing environment, task is to be performed by by the remote processing devices of communication network links.Dividing
In cloth cloud computing environment, program module may be located at and includes that the Local or Remote of storage device calculates system
On storage medium.
Claims (16)
1. the data transmission set in remote service, including:
Unit is set, is suitable to after setting up with main control end and remotely controlling to be connected, by the desktop background of controlled end
It is shown as monochromatic, wherein, when the desktop background of controlled end is set to monochrome, by edit the registry
Desktop background is set to the monochrome of certain color value by the mode of corresponding list item；
Placement unit, is suitable to display interface based on described controlled end and carries out image-capture, obtain display interface
Image；
Blocking unit, being suitable to described display interface image division is at least two block, is divided by described block
It is not defined as image waiting for transmission；
Data transfer unit, if being suitable to all desktop backgrounds in current block, then by described monochromatic corresponding
Colour send described main control end to, in order to main control end according to described colour show current block；
Flatness detector unit, if being suitable to the color category included in current block to be at least three kinds, then
The flatness of described block is judged；
Compression unit, is suitable to determine the compress mode to described current block according to judged result, and with described
Compress mode view data corresponding to described block is compressed；
Compression data transfer unit, the view data after being suitable to compression sends described main control end to, in order to main
Control end shows described current block according to the view data after described compression.
2. equipment as claimed in claim 1, also includes:
Indexing units, if being suitable to the color category included in current block is two kinds, then to two kinds of colors
It is indexed respectively；
Encoding performing unit, is suitable to the index value so that two kinds of colors are corresponding respectively and compiles described current block
Code；
Coding delivery unit, is suitable to encode result, and the corresponding relation of described index value and color colour
Send described main control end to；So that main control end is according to described coding result, and described index value and color color
The corresponding relation of value, shows described current block.
3. equipment as claimed in claim 1 or 2, also includes:
Recovery unit, is suitable to the instruction according to main control end or at preset time point, is carried on the back by the desktop of controlled end
Scape reverts to initial condition.
4. equipment as claimed in claim 3, the described unit that arranges includes:
Acquisition of information subelement, is suitable to after setting up with main control end and remotely controlling to be connected, acquisition controlled end
Desktop background information, and described desktop background information is saved in the registry file specified；
Subelement is set, is suitable to, according to preset color value, the desktop background of described controlled end is set to monochrome；
Described recovery unit includes:
Information reading sub-unit, is suitable at preset time point, reads in the described registry file specified and protects
The desktop background information deposited；
Recover subelement, for setting according to the desktop background of the desktop background Information recovering controlled end read
Put.
5. equipment as claimed in claim 4, described desktop background information includes the desktop that controlled end uses
Background picture and display mode thereof, described display mode includes stretching, placed in the middle or tiling, described acquisition of information
Subelement includes:
The first system function call subelement, is suitable to the application programming by call operation system provides and connects
Mouth api function, obtains the path of the desktop background picture that controlled end uses；
Registration table reads subelement, is suitable to the registration table by reading system and obtains controlled end desktop background picture
Display mode；
Described recovery subelement includes:
Registry Modifications subelement, is suitable to the registration table according to the desktop background information amendment system read
Information；
Second system function call subelement, is suitable to notify operation system by the api function of call operation system
Unite and refresh the desktop background of controlled end based on amended registration table key assignments.
6. equipment as claimed in claim 5, also includes:
Information deletion unit, is suitable to, after the desktop background of controlled end is arranged, delete the described registration specified
The desktop background information preserved in list file；
Described information reading sub-unit is particularly adapted to:
Remotely control to connect disconnect time, remote control program exit time or remote control program restart time,
Read the described registry file specified, if the described registry file specified is not for empty, then read described
The desktop background information wherein preserved, and trigger described recovery subelement according to the desktop background letter read
Breath recovers the desktop background of controlled end and arranges.
7. equipment as claimed in claim 6, also includes:
Monitoring unit, is suitable to the display interface according to prefixed time interval intermittent scanning controlled end；
Updating block, is suitable to monitor the color change comprised in one or more described blocks in scanning every time,
Color index value after the block coordinate that will change, and change, is sent to main control end, in order to master control
Holding the corresponding relation according to described coordinate and color index value, described index value and color colour, it is right to show
The one or more blocks answered.
8. equipment as claimed in claim 7, also includes:
Tip element, is suitable to when the desktop background of controlled end is shown as monochrome, and letter is pointed out in display accordingly
Breath.
9. the data transmission method in remote service, including:
After setting up with main control end and remotely controlling to be connected, the desktop background of controlled end is shown as monochrome, its
In, when the desktop background of controlled end is set to monochrome, by the side of list item corresponding in edit the registry
Desktop background is set to the monochrome of certain color value by formula；
Display interface based on described controlled end carries out image-capture, obtains display interface image；
It is at least two block by described display interface image division, described block is identified as to be transmitted
Image；
If all desktop backgrounds in current block, then send described monochromatic corresponding colour to described master
Control end, in order to main control end shows current block according to described colour；
If the color category included in current block is at least three kinds, then the flatness of described block is entered
Row judges；
The compress mode to described current block is determined according to judged result；
It is compressed with described compress mode view data corresponding to described block；
Send the view data after compression to described main control end, in order to main control end is according to the figure after described compression
As data show described current block.
10. method as claimed in claim 9, also includes:
If the color category included in current block is two kinds, then two kinds of colors are indexed respectively；
With the index value that two kinds of colors are corresponding respectively, described current block is encoded；
Result will be encoded, and the corresponding relation of described index value and color colour will send described main control end to；
So that main control end is according to described coding result, and the corresponding relation of described index value and color colour, display
Described current block.
11. methods as described in claim 9 or 10, also include:
Indicating or at preset time point according to main control end, reverts to original shape by the desktop background of controlled end
State.
12. methods as claimed in claim 11, described after setting up with main control end and remotely controlling to be connected,
The desktop background of controlled end is shown as monochrome include:
After setting up with main control end and remotely controlling to be connected, the desktop background information of acquisition controlled end, and by institute
State desktop background information to be saved in the registry file specified；
According to preset color value, the desktop background of described controlled end is set to monochrome；
Described at preset time point, the desktop background of controlled end is reverted to original shape and includes:
At preset time point, read the desktop background information preserved in the described registry file specified；
Desktop background according to the desktop background Information recovering controlled end read is arranged.
13. methods as claimed in claim 12, described desktop background information includes the table that controlled end uses
Face background picture and display mode thereof, described display mode includes stretching, placed in the middle or tiling, and described acquisition is subject to
The desktop background information of control end includes:
The application programming interface api function provided by call operation system, obtains what controlled end used
The path of desktop background picture；
The display mode of controlled end desktop background picture is obtained by reading the registration table of system；
The described desktop background according to the desktop background Information recovering controlled end read arranges and includes:
Registry information according to the desktop background information amendment system read；
Notify that operating system is based on amended registration table key assignments brush by the api function of call operation system
The desktop background of new controlled end.
14. methods as claimed in claim 13, also include:
After the desktop background of controlled end is arranged, delete the desktop preserved in the described registry file specified
Background information；
Described at preset time point, read the desktop background letter bag preserved in the described registry file specified
Include:
Remotely control to connect disconnect time, remote control program exit time or remote control program restart time,
Read the described registry file specified, if the described registry file specified is not for empty, then read described
The desktop background information wherein preserved, and trigger according to the desktop background Information recovering controlled end read
Desktop background is arranged.
15. methods as claimed in claim 14, also include:
Display interface according to prefixed time interval intermittent scanning controlled end；
The color change comprised in one or more described blocks in monitoring scanning every time, the district that will change
Color index value after block coordinate, and change, is sent to main control end, in order to main control end is according to described coordinate
And color index value, described index value and the corresponding relation of color colour, show the one or more of correspondence
Block.
16. methods as claimed in claim 15, also include:
When the desktop background of controlled end is shown as monochrome, show corresponding information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210540279.3A CN103067449B (en) | 2012-12-13 | 2012-12-13 | Data transmission set in remote service and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210540279.3A CN103067449B (en) | 2012-12-13 | 2012-12-13 | Data transmission set in remote service and method |
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| CN103067449A CN103067449A (en) | 2013-04-24 |
| CN103067449B true CN103067449B (en) | 2016-09-28 |
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| CN105100639B (en) * | 2015-07-20 | 2017-11-24 | 京东方科技集团股份有限公司 | A kind of display methods and display device |
| CN111405071A (en) * | 2020-06-02 | 2020-07-10 | 广东睿江云计算股份有限公司 | Cloud desktop based picture transmission method and system |
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| US6973482B2 (en) * | 2001-10-01 | 2005-12-06 | Microsoft Corporation | Remote assistance |
| US20050169537A1 (en) * | 2004-02-03 | 2005-08-04 | Sony Ericsson Mobile Communications Ab | System and method for image background removal in mobile multi-media communications |
| CN101588340A (en) * | 2008-05-22 | 2009-11-25 | 北京帮助在线信息技术有限公司 | Equipment and method for bandwidth self-adaptation of online help |
| CN102164167B (en) * | 2011-02-21 | 2014-10-15 | 北京奇虎科技有限公司 | Method and system for remote-control classified transmission |
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