CN103019641B - Remote control process transmits the Apparatus and method for of data - Google Patents
Remote control process transmits the Apparatus and method for of data Download PDFInfo
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Abstract
The present invention relates to network data communication technical field, it discloses the Apparatus and method for transmitting data in remote control process, wherein, described equipment includes: arrange unit, be suitable to, after setting up with main control end and remotely controlling to be connected, the desktop background of controlled end be shown as monochrome；Determine unit, be adapted to determine that image waiting for transmission；Data transfer unit, if being suitable to described image waiting for transmission to include all or part of desktop background, then sends described monochromatic corresponding colour to described main control end, in order to main control end shows the desktop background of controlled end according to described colour.By the present invention, solve transmission controlled end background picture in remote control process and take the problem of massive band width, achieve bandwidth shared when reducing transmission controlled end background picture, improve the beneficial effect of the fluency of remote control operation.
Description
Technical field
The present invention relates to network data communication technical field, be specifically related to transmit the Apparatus and method for of data in remote control process.
Background technology
Remotely control, refer to management personnel or the system support staff etc. of the computer equipment computer equipment by the long-range controlled terminal of Internet connectivity, 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, long-range controlled terminal computer equipment is carried out the work such as system configuration, software installation procedure, failture evacuation.
The related work remotely controlled requires over network just can carry out, the computer equipment being located locally is the issuing side of operational order, it is called main control end, and long-range controlled terminal computer equipment is properly termed as controlled end, controlled end receives and performs operational order that main control end sends and performed at controlled end.Main control end and controlled end can be in the computer equipment in same LAN, it is also possible to be two that are in any position or multi-section computer equipment being connected into the Internet.nullRealize the main control end control to controlled end，Typically require installation client-side program in the computer equipment of main control end，Build-in services device end program in the computer equipment of controlled end，During use, the client-side program of main control end sends signal to the server of controlled end，Set up the link of a remote service，Then pass through the link of this remote service，Its desktop environment information such as (include on the background information of desktop and desktop) icons of display is transmitted and is shown to main control end by controlled end，Main control end sends the corresponding remote control command of various remote control functions，The computer equipment controlling controlled end performs remote control command，When the display interface of controlled end changes，Also need to be sent to main control end and require that it carries out corresponding frame updating and shows by the interface information after updating，Move in circles with this，Thus completing the work that various long-range control is relevant.
In prior art when transmitting the desktop environment information of controlled end to main control end, it is common that directly the desktop of controlled end is carried out sectional drawing, then the picture being truncated to is combined into data message and is sent to main control end.But, need bigger bandwidth when carrying out the transmission of data with the form of picture, due to the restriction of main control end or the actually used network bandwidth of controlled end, remote control operation often up to less than or be difficult to level off to 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 a kind of and overcome the problems referred to above or solve the equipment transmitting data in remote control process of the problems referred to above and the method transmitting data in remote control process accordingly at least in part.
According to one aspect of the present invention, it is provided that a kind of equipment transmitting data in remote control process, including:
Unit is set, is suitable to, after setting up with main control end and remotely controlling to be connected, the desktop background of controlled end be shown as monochrome；
Determine unit, be adapted to determine that image waiting for transmission；
Data transfer unit, if being suitable to described image waiting for transmission to include all or part of desktop background, then sends described monochromatic corresponding colour to described main control end, in order to main control end shows the desktop background of controlled end according to described colour.
Alternatively, also include:
Recovery unit, is suitable to the instruction according to main control end or at preset time point, the desktop background of controlled end is reverted to 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, the desktop background information of acquisition controlled end, 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 the desktop background information preserved in the described registry file specified；
Recover subelement, arrange for the desktop background according to the desktop background Information recovering controlled end read.
Alternatively, described desktop background information includes desktop background picture and the display mode thereof that controlled end uses, and 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 interface api function provided by call operation system, obtains the path of the desktop background picture that controlled terminal uses；
Registration table reads subelement, is suitable to the registration table by reading system and obtains the display mode of controlled terminal desktop background picture；
Described recovery subelement includes:
Registry Modifications subelement, is suitable to the registry entry key assignments according to the desktop background information amendment system read；
Second system function call subelement, is suitable to notify that operating system refreshes the desktop background of controlled terminal based on amended registration table key assignments by the api function of call operation system.
Alternatively, also include:
Information deletion unit, is suitable to, after the desktop background of controlled end is arranged, delete the desktop background information preserved in the described registry file specified；
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 sky, the desktop background information that wherein preserves described in then reading, and trigger described recovery subelement and arrange according to the desktop background of the desktop background Information recovering controlled end read.
Alternatively, described determine that unit includes:
Capture subelement, be suitable to carry out based on the display interface of described controlled end image-capture, obtain display interface image；
Piecemeal subelement, being suitable to described display interface image division is at least two block, and described block is identified as image waiting for transmission；
Described data transfer unit, including:
Judgment sub-unit, is suitable to judge whether to include in current block all or part of desktop background；
Data transmit subelement, be suitable to if it is determined that current block includes all or part of desktop background, then send the coordinate of described monochromatic corresponding colour and current block to main control end, in order to described current block is displayed by main control end according to monochromatic colour corresponding to described current block and coordinate.
Alternatively, also include:
Two kinds of colors if being suitable to get the color category comprised in current block is two kinds, are then indexed by indexing units respectively；
Encoding performing unit, is suitable to the index value so that two kinds of colors are corresponding respectively and described current block is encoded；
Coding delivery unit, is suitable to encode result, and the corresponding relation of described index value and color value sends 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 value, show described current block.
Alternatively, also include:
Flatness detection unit, if being suitable to get the color category comprised in current block to be at least three kinds, then judges the flatness of described block；
Compress mode determines unit, is suitable to determine the compress mode to described current block according to judged result；
Compression performance element, is suitable to described compress mode, the corresponding view data of described block is compressed；
Compression data transfer unit, is suitable to the view data after by compression and 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:
Monitoring unit, is suitable to the display interface according to prefixed time interval intermittent scanning controlled end；
Updating block, be suitable to monitor the color change comprised in one or more described blocks in scanning every time, the block coordinate that will change, and the picture coding result after change, it is sent to main control end, so that main control end is according to described coordinate and picture coding result, one or more blocks that display is corresponding.
Alternatively, also include:
Tip element, is suitable to, when the desktop background of controlled end is shown as monochrome, show corresponding information.
According to a further aspect in the invention, it is provided that a kind of method transmitting data in remote control process, including:
After setting up with main control end and remotely controlling to be connected, the desktop background of controlled end is shown as monochrome；
Determine image waiting for transmission；
If described image waiting for transmission includes all or part of desktop background, then send described monochromatic corresponding colour to described main control end, in order to main control end shows the desktop background of controlled end according to described colour.
Alternatively, also include:
Indicating or at preset time point according to main control end, reverts to initial condition by the desktop background of controlled end.
Alternatively, described after setting up with main control end and remotely controlling to be connected, the desktop background of controlled end is shown as monochrome and includes:
After setting up with main control end and remotely controlling to be connected, the desktop background information of acquisition controlled end, and 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 initial condition 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 mode thereof that controlled end uses, and described display mode includes stretching, placed in the middle or tiling, and the desktop background information of described acquisition controlled end includes:
It is operated by the application programming interface api function that calling system provides, obtains the path of the desktop background picture that controlled end uses；
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 entry key assignments according to the desktop background information amendment system read；
Notify that operating system refreshes the desktop background of controlled end based on amended registration table key assignments by the api function of call operation system.
Alternatively, also include:
After the desktop background of controlled end is arranged, delete the desktop background information preserved in the described registry file specified；
Described at preset time point, the desktop background of controlled end is reverted to initial condition and includes:
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 sky, the desktop background information wherein preserved described in then reading, and trigger the operation that the desktop background according to the desktop background Information recovering controlled end read is arranged.
Alternatively, described determine that image waiting for transmission includes:
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 image waiting for transmission；
If image described waiting for transmission includes all or part of desktop background, then send described monochromatic corresponding colour to described main control end, in order to main control end shows the desktop background of controlled end according to described colour, including:
Judge whether current block includes desktop background；
If it is, the coordinate by described monochromatic corresponding colour and current block sends main control end to, in order to described current block is displayed by main control end according to monochromatic colour corresponding to described current block and coordinate.
Alternatively, also include:
If getting the color category comprised 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, show described current block.
Alternatively, also include:
If getting the color category comprised in current block to be at least three kinds, then the flatness of described block is judged；
The compress mode to described current block is determined according to judged result；
With described compress mode, the corresponding view data of described block is compressed；
Send the view data after compression to described main control end, in order to main control end shows described current block according to the view data after described compression.
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, the block coordinate that will change, and the color index value after change, it is sent to main control end, so that 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 more blocks.
Alternatively, also include:
When the desktop background of controlled end is shown as monochrome, show corresponding information.
According in the Apparatus and method for transmitting data in remote control process of the present invention, it is possible to by arranging unit after controlled end is set up with main control end and remotely to be controlled to be connected, the desktop background of controlled end is shown as monochrome；After determining that unit determines image waiting for transmission, by data transfer unit when image waiting for transmission includes all or part of desktop background, send monochromatic corresponding colour to described main control end, such that it is able to make the main control end desktop background according to the colour display controlled end transmitted, the desktop background picture that controlled end transmits to main control end is made to be substituted by the colour that data volume is relatively small, the data volume transmitted in remote control process can be reduced from controlled end to main control end, thus solve the problem that controlled end background picture takies massive band width of transmitting in remote control process, achieve bandwidth shared when reducing transmission controlled end background picture, improve 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 technological means of the present invention, and can be practiced according to the content of description, and in order to above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by the specific embodiment of the present invention.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit those of ordinary skill in the art be will be clear from understanding.Accompanying drawing is only for illustrating the purpose of preferred implementation, and is not considered as limitation of the present invention.And in whole accompanying drawing, it is denoted by the same reference numerals identical parts.In the accompanying drawings:
Fig. 1 illustrates the flow chart of method according to an embodiment of the invention；
Fig. 2 illustrates the schematic diagram of equipment according to an embodiment of the invention；
Fig. 3 illustrates the schematic diagram of equipment in accordance with another embodiment of the present invention；And,
Fig. 4 illustrates 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 showing the exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure and should do not limited by embodiments set forth here.On the contrary, it is provided that these embodiments are able to be best understood from the disclosure, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
Referring to Fig. 1, embodiments providing a kind of method transmitting data in remote control process, 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 monochrome；
In embodiments of the present invention, consider in the process that the display interface data of controlled end are transmitted to main control end, data are the desktop backgrounds representing controlled end actually greatly, and generally, desktop background may be set to complex picture by controlled end user, when transmitting such image data, it is necessary to take bigger transmission bandwidth.But it practice, the desktop background of controlled end operates in fact entirely without meaning for remote assistance, therefore, shared on transmission desktop background picture transmission bandwidth is actually one waste.If able to reduce this part data, then can be greatly saved taking transmission bandwidth, simultaneously without affecting being normally carried out of remote assistance service.For this, in embodiments of the present invention, after setting up with main control end and remotely controlling to be connected, be not that directly the display interface of controlled end is carried out sectional drawing, but first the desktop background of controlled end be shown as monochrome, then carry out the transmission of image again.So, the display interface that will make controlled end becomes fairly simple, when carrying out sectional drawing on simple displaying interface basis and then picture is encoded, it is necessary to quantity of information will be fewer, and then when carrying out the transmission of data message, 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 arbitrary, for instance, it is possible to it is black etc..When implementing, it is possible to be modified the mode of list item corresponding in registration table, realize being set to desktop background the monochrome of certain color value.Such as, registry entry HKEYCURRENTUSER ControlPanel the key assignments of Wallpaper under Desktopd represent the filename of the picture that desktop background uses, therefore, in order to desktop background being changed into monochromatic value, first the key assignments of this registry entry can be changed into sky, thus can so that desktop background picture is nothing, that is, any pictures is not set to desktop background picture；Simultaneously, it is possible to be modified registry entry HKEYCURRENTUSER ControlPanel the key assignments of Background under Colors, 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, using " space " as separator between every section, three segment datas represent trichromatic value namely red R, green G, blue B respectively, the span of every segment data is 0 to 255, therefore, it can by the numerical value corresponding for three section inputs, it is possible to realize the amendment to desktop background color.Such as, the key assignments of Background is set to " 000 ", then desktop background will be displayed as black, and the key assignments of Background is set to " 25500 ", then desktop background will be displayed as redness, etc..In actual applications, the color value of desktop background can arbitrarily select.Certainly, when implementing, it is possible to write the program of correspondence at remote assistance instrument in advance, and set the rgb value of required desktop background color in a program, then pass through this program to revise the registry entry of system, can realize above-mentioned controlled end desktop background being set to monochrome.
It should be noted that, it is only used to reduce taking transmission bandwidth in the process of remote assistance service owing to the desktop background of controlled end being changed into monochrome, therefore, after remote assistance process terminates, automatically the state before desktop background can also being returned to, and after desktop background is changed into monochrome, user can also be pointed out, " so that the process of remote assistance is more smooth; need temporarily to change its desktop background into certain color; complete automatically recover afterwards at remote assistance ", etc..Or, it is also possible to ask the user whether before modification to allow desktop background is carried out provisional amendment, if user agrees to amendment, then its desktop background is modified.
In order to automatically desktop background to be returned to the state before amendment, before desktop background is set to monochrome, it is also possible to obtain the desktop background information of controlled end, and be saved in a registry file specified.Wherein, so-called desktop background information, the path of the picture that desktop background uses can be included, and the display mode of background picture (placed in the middle, tiling or stretching), that is, need to know before modification, what desktop background adopted is that width picture, this picture is to show in the way of placed in the middle, tiling or stretching, these information is saved in a registry file.Then, when needs recovery desktop background is arranged, it is possible to read out the desktop background information preserved in this registry file, then pass through the desktop background using these information to reset controlled end.
Wherein, specifically when obtaining desktop background information, can pass through to read registration table and obtain the key assignments of the registry entry specified, the display mode of desktop background picture is got according to this key assignments, the mode of function simultaneously, it is possible to by the API(ApplicationProgrammingInterface that call operation system provides, application programming interface), obtain the storing path of desktop background picture, namely know which width picture controlled end uses.Such as, by read HKEY_CURRENT_USER ControlPanel 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 that the key assignments of TileWallpaper is 0, WallpaperStyle is also 0, then the display mode representing desktop background picture is placed in the middle；If the key assignments that the key assignments of TileWallpaper is 1, WallpaperStyle is 0, then the display mode representing desktop background picture is tiling；If the key assignments that the key assignments of TileWallpaper is 0, WallpaperStyle is 2, then represent the display mode of desktop background picture for stretching.Therefore, by reading the key assignments of the two registry entry, which kind of display mode what namely would know that current desktop background picture employing is.
Simultaneously, it is possible to by the mode of the API that calling system provides, obtain the storing path of desktop background picture.This api function can be that SystemParametersInfo, SystemParametersInfo function can be used to inquiry or arranges system-level parameters, it is possible to got the path of the desktop background picture that controlled end uses by this function.
After the path getting desktop background picture and display mode, it is possible to these information are saved in a registry file (with the reg file being suffix name).So, when needing the state desktop background of controlled end returned to before amendment, just can read out the desktop background information of preservation from this registry file, then the key assignments of registry entry of correspondence is revised by these information (such as, TileWallpaper can be included, WallpaperStyle, Wallpaper, the value of ConvertedWallpaper and OriginalWallpaper), then the api function that calling system provides notifies that operating system refreshes the desktop background of controlled terminal based on amended registration table key assignments, just can so that the desktop background of controlled end returns to the state before amendment.Such as, equally possible call SystemParametersInfo function, its parameter is set to SPI_SETDESKWALLPAPER, can notify that operating system uses amended registration table key assignments to arrange desktop background picture.
Wherein, when implementing, the time point recovering desktop background information can have multiple.Such as, but after completing a remote control service, perform to recover the operation of desktop background information.Wherein, can will disconnect the event remotely controlling to be connected with main control end as the mark completing remote control service, and, receive disconnect with between main control end when remotely controlling the message being connected, it is first carried out recovering the operation of desktop background information, then disconnects the connection between main control end again.Or, the event of remote control program can also be will move out as the mark completing remote control service, namely, when receiving the message exiting remote control program (namely after the connection disconnected between main control end, such as, when user clicks the X button of controlled end remote control program), it is first carried out recovering the operation of desktop background information, then terminates the remote control program of controlled end again.
Certainly, if the event remotely controlling to be connected or the event the exiting remote control program triggering event as recovery desktop background will be disconnected with main control end, then once remote control program breaks down in running causes abnormal exiting, then desktop background will be unable to automatically restore to initial condition.Generation in order to avoid this situation, it is possible to multiple time point for recovering is set, for instance, it is possible to include remotely controlling to connect when disconnecting, remote control program when exiting, remote control program be when starting next time, etc.；As long as and completing the recovery of desktop background, the desktop background information deletion that just will preserve in registry file at any one time point.So, whether each time point just can pass through to judge in registry file is empty, judge whether to perform the recovery operation of desktop background, if being empty, then prove to have performed over recovery operation, be then not repeated to perform recovery operation, if not being empty, then prove to have not carried out recovery operation, therefore just can perform recovery operation.Such as, assume that remote control program is abnormal owing to fault causes to exit, 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, just may certify that desktop background is not yet recovered, and according to the concrete recovery operation of information and executing preserved in registry file.
The above is to be decided in its sole discretion in the recovery when carrying out desktop background by controlled end, in actual applications, owing to concrete operation of assisting sends in main control end, controlled end is only carried out the instruction that main control end sends, and main control end is easier to know when what remote assistance service can terminate.Accordingly it is also possible to sent recovery instruction by main control end to controlled end, the desktop background of controlled end after the instruction receiving main control end, can be reverted to initial condition by such controlled end.Wherein, the recovery instruction that main control end sends, manually can be sent by main control end user, such as, after main control end user completes all operations of this time service, first can send an instruction recovering desktop background to controlled end, after end to be controlled completes the recovery operation of desktop background, then send instructions such as disconnecting.Certainly, main control end can also be disconnect instruction simultaneously or after sending, and sends the instruction recovering desktop background, etc..
S102: determine image waiting for transmission；
After the desktop background of controlled end is set to monochrome, it is possible to determine image waiting for transmission, for preparing to main control end transmission.Wherein, when determining image waiting for transmission, the display interface of controlled end (including the icon on desktop background and desktop, start menu, taskbar and program tag of wherein showing etc.) can be carried out sectional drawing, then directly using the image that is truncated to as image waiting for transmission, then this image is encoded, sends the data message obtained to main control end.Owing to desktop background being set to monochrome, therefore required when the display interface picture being truncated to is encoded data volume will diminish, and accordingly, will reduce taking transmission bandwidth when carrying out data transmission.
Or, the embodiment of the present invention can also combine with the block transmission of image.When remote assistance process carries out image transmitting; the subregion update mode that would generally adopt picture carries out the renewal of image; that is; same for the consideration reducing transmission bandwidth; if controlled end find with on compared with a moment; in screen, only the image of subregion there occurs change, and other region is constant, then only this part can being there occurs, the area image of conversion is transferred to main control end.Update to realize this subregion, typically require and image is carried out piecemeal, namely before being transmitted, first divide the image into block one by one, then again these blocks are encoded respectively, and coding information and the coordinate of each block (are included the origin coordinates of each block, the high pixel value of shared width, etc.) it is sent to main control end, picture is converted to according to the coding information of each block in main control end, and according to respective coordinate figure, each block is combined, obtain complete image, thus showing the display interface of controlled terminal.If controlled end is after display interface sectional drawing is obtained image by subsequent time, in the same way image can be carried out piecemeal, then compare with the block on a upper moment correspondence position, only the block that conversion occurs is encoded, and coordinate corresponding to the data message obtained and block is sent to main control end, then can repeat than the block that do not change with a upper moment and be sent to main control end.The block changed being newly received can be combined according to respective coordinate by main control end 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 possible is multiple block by the display interface image grabbed according to certain model split, then using each block as image waiting for transmission, and then each block is encoded, re-send to main control end afterwards.
It should be noted that about specifically how image being carried out piecemeal, and how to determine the coordinate of each block, wide high, it is possible to referring to the implementation in prior art, no longer describe in detail here.
S103: if described image waiting for transmission includes all or part of desktop background, then send described monochromatic corresponding colour to described main control end, in order to main control end shows the desktop background of controlled end according to described colour.
After determining image waiting for transmission, it is possible to image to be transmitted is encoded, the data message obtained is sent to main control end, in order to demonstrate the display interface of controlled end in main control end.Wherein, if image waiting for transmission includes all or part of desktop background, then just can send the monochromatic corresponding colour of desktop background to main control end.Wherein, when combining image block transmission, effect is particularly evident.This is because, generally, having very big area in display interface is desktop background, such as, if user is not turned on any program window, then being likely in the display interface of user only at some icons of the position display such as left side, show START button and status bar in bottom, remainder is desktop background；After so display interface image being carried out piecemeal, in each block obtained, it is possible to having block greatly is all only include desktop background, therefore, for such block, as long as the coordinate of this block and the colour of desktop background are sent to main control end, without again each pixel in this block being encoded, therefore, it is greatly saved amount of coded data, and then saves transmission bandwidth.
And for the block not only comprising desktop background, the embodiment of the present invention also provides corresponding method for encoding images, to reduce taking transmission bandwidth as far as possible.Concrete, the color category comprised in block can be judged, if only two kinds of colors, 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 according to coding result, and the corresponding relation of index value and color value, it is shown that current block.Such as, after getting two kinds of color value, one of which color value can be represented with 0, another kind of color value is represented with 1, then index with 0 and 1, 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 encoded into 1.So, index value only has one, and the color value that index value is corresponding can be 24, because the concrete value that color value requires over RGB represents to be specially what color.Namely have a talk about, in this manner, be not required to be encoded each pixel by the color value of 24, but only with the index value of 1, each pixel be encoded, the color value that two index values are corresponding respectively is sent to main control end simultaneously.In other words, assume that certain block has 10,000 pixels, if then each pixel is encoded by the color value of 24, then coding after data volume be at least 240,000 bits, and if according to the embodiment of the present invention provide coded system, 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, visible, this mode greatly reduces the data volume needed for picture coding, and then saves transmission bandwidth.
Additionally, if the color value comprised in certain block is more than three kinds, then the flatness of tile images can be judged, then it is judged that result determines the compress mode of this block, with this suitable compress mode, the image of this block is compressed, 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 smooth, with JPEG(JointPhotographicExpertsGroup, joint image expert group) algorithm is compressed, if unsmooth, is compressed with ZIP algorithm.Wherein, so-called smooth it is and sharply relative concept that smooth to refer in image the excessive ratio of color between each image shallower, and entire image picture ratio is milder, it does not have edge boundary too clearly, etc..When judging that whether piece image is smooth, may determine that in image, whether the summation of the color distortion of adjacent image point is less than a threshold value (its value can set according to the actual needs or adjust), if less than, then 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 relatively more sharp-pointed, and then the ZIP algorithm being more suitable for unsmooth image can be selected to be compressed.Certainly, the image compression algorithm adopted due to different blocks is likely to difference, therefore, in order to main control end can correctly decode, can also while the data message after main control end transmission compression, carry the image compression algorithm of corresponding block, 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；But jpeg algorithm then can require to adjust its compression factor according to different compression qualities, and, when identical compression quality, smoothness and compression factor are inversely proportional to, namely, when using jpeg algorithm that smooth image is compressed, if required compression quality is certain, the compression factor of jpeg algorithm then can be selected according to the smoothness of image, if the smoothness of image is more high, then can use more low compression factor, otherwise, if the smoothness of image is more low, then the compression factor also used is also more high.It addition, when identical compression factor, image compression quality is directly proportional to Image Smoothness, that is, Image Smoothness is more high, then image compression quality is also more high.
It should be noted that, specifically in judging a block during quantity of that color value comprised, the each pixel in region can be traveled through, when learning the color value of first pixel, this color value is saved in a color value table, after learning the color value of next pixel, first determine whether whether color value table exists this color value, if not at the exterior and the interior, then represent and find a new color, this color value is inserted into color value the exterior and the interior simultaneously, if suffered at color value table, then continue traversal, by that analogy, final just can learning comprises how many pixel values altogether in a block.Certainly, as it was noted above, if it find that a block comprises the color value of more than three, the mode judging smoothness is just adopted to send after selecting compression algorithm to be compressed, therefore, in the process of traversal, after finding three kinds of color value, it is possible to stop traversal, to save the operating time.
Additionally, in actual applications, if block include three kinds even more color time, can also use indexing means similar when having color value with aforementioned two kinds that image is encoded, simply very many in the color value comprised, to such an extent as to the bit number shared by an index value close to bit number shared by a color value time, it is not necessary to be indexed in this manner, select compress mode to be compressed according to smoothness.
In a word, after controlled end desktop background is set to monochrome, it is possible to reduce taking transmission bandwidth in several ways as much as possible.When the data-message transmission of controlled end is to after main control end, data message just can be resolved by main control end, and restores the image of controlled end display interface.Simultaneously, at controlled end, also can according to the display interface of prefixed time interval intermittent scanning controlled end, the color change comprised in one or more described blocks in monitoring scanning every time, the block coordinate that will change, and the picture coding result after change, be sent to main control end, so that main control end is according to described coordinate and picture coding result, one or more blocks that display is corresponding.
Corresponding with the method transmitting data in remote control process that the embodiment of the present invention provides, the embodiment of the present invention additionally provides a kind of equipment transmitting data in remote control process, referring to Fig. 2, this equipment can be configured in the controlled end assisting system at a distance, specifically may include that
Unit 201 is set, is suitable to, after setting up with main control end and remotely controlling to be connected, the desktop background of controlled end be shown as monochrome；
Determine unit 202, be adapted to determine that image waiting for transmission；
Data transfer unit 203, if being suitable to described image waiting for transmission to include all or part of desktop background, then sends described monochromatic corresponding colour to described main control end, in order to main control end shows the desktop background of controlled end according to described colour.
In order to after remote assistance service terminates, the desktop background of controlled end is returned to original state, in actual applications, referring to Fig. 3, this equipment can also include:
Recovery unit 204, is suitable to, at preset time point, the desktop background of controlled end be reverted to initial condition.
When implementing, in order to realize above-mentioned recovery process, the described unit 201 that arranges specifically may include that
Acquisition of information subelement, is suitable to after setting up with main control end and remotely controlling to be connected, the desktop background information of acquisition controlled end, 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 204 specifically may include that
Information reading sub-unit, is suitable to the instruction according to main control end or at preset time point, reads the desktop background information preserved in the described registry file specified；
Recover subelement, arrange for the desktop background according to the desktop background Information recovering controlled end read.
Wherein, described desktop background information includes desktop background picture and the display mode thereof that controlled end uses, and 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 interface api function provided by call operation system, obtains the path of the desktop background picture that controlled terminal uses；
Registration table reads subelement, is suitable to the registration table by reading system and obtains the display mode of controlled terminal desktop background picture；
Described recovery subelement includes:
Registry Modifications subelement, is suitable to the registry entry key assignments according to the desktop background information amendment system read；
Second system function call subelement, is suitable to notify that operating system refreshes the desktop background of controlled terminal based on amended registration table key assignments by the api function of call operation system.
Additionally, this equipment can also include:
Information deletion unit, is suitable to, after the desktop background of controlled end is arranged, delete the desktop background information preserved in the described registry file specified；
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 sky, the desktop background information that wherein preserves described in then reading, and trigger described recovery subelement and arrange according to the desktop background of the desktop background Information recovering controlled end read.
In actual applications, the embodiment of the present invention can also combine with the block transmission technology of image, concrete, referring to Fig. 4, described determines that unit 202 may include that
Capture subelement 2021, be suitable to carry out based on the display interface of described controlled end image-capture, obtain display interface image；
Piecemeal subelement 2022, being suitable to described display interface image division is at least two block, and described block is identified as image waiting for transmission；
Described data transfer unit 203, including:
Judgment sub-unit 2031, is suitable to judge whether to include in current block all or part of desktop background；
Data transmit subelement 2032, be suitable to if it is determined that current block includes all or part of desktop background, then send the coordinate of described monochromatic corresponding colour and current block to main control end, in order to described current block is displayed by main control end according to monochromatic colour corresponding to described current block and coordinate.
When implementing, this equipment can also include:
Two kinds of colors if being suitable to get the color category comprised in current block is two kinds, are then indexed by indexing units respectively；
Encoding performing unit, is suitable to the index value so that two kinds of colors are corresponding respectively and described current block is encoded；
Coding delivery unit, is suitable to encode result, and the corresponding relation of described index value and color value sends 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 value, show described current block.
It addition, this equipment can also include:
Flatness detection unit, if being suitable to get the color category comprised in current block to be at least three kinds, then judges the flatness of described block；
Compress mode determines unit, is suitable to determine the compress mode to described current block according to judged result；
Compression performance element, is suitable to described compress mode, the corresponding view data of described block is compressed；
Compression data transfer unit, is suitable to the view data after by compression and sends described main control end to, in order to main control end shows described current block according to the view data after described compression.
In the process of 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, be suitable to monitor the color change comprised in one or more described blocks in scanning every time, the block coordinate that will change, and the picture coding result after change, it is sent to main control end, so that main control end is according to described coordinate and picture coding result, one or more blocks that display is corresponding.
Additionally, this equipment can also include:
Tip element, is suitable to, when the desktop background of controlled end is shown as monochrome, show corresponding information.
In the equipment transmitting data in remote control process of the embodiment of the present invention, it is possible to by arranging unit after controlled end is set up with main control end and remotely to be controlled to be connected, the desktop background of controlled end is shown as monochrome；After determining that unit determines image waiting for transmission, by data transfer unit when image waiting for transmission includes all or part of desktop background, send monochromatic corresponding colour to described main control end, such that it is able to make the main control end desktop background according to the colour display controlled end transmitted, the desktop background picture that controlled end transmits to main control end is made to be substituted by the colour that data volume is relatively small, the data volume transmitted in remote control process can be reduced from controlled end to main control end, thus solve the problem that controlled end background picture takies massive band width of transmitting in remote control process, achieve bandwidth shared when reducing transmission controlled end background picture, improve the beneficial effect of the fluency of remote control operation.
Not intrinsic to any certain computer, virtual system or miscellaneous equipment relevant in algorithm and the display of this offer.Various general-purpose systems can also with use based on together with this teaching.As described above, the structure constructed required by this kind of system is apparent from.Additionally, the present invention is also not for any certain programmed language.It is understood that, it is possible to utilize various programming language to realize the content of invention described herein, and the description above language-specific done is the preferred forms in order to disclose the present invention.
In description mentioned herein, describe a large amount of detail.It is to be appreciated, however, that embodiments of the invention can be put into practice when not having these details.In some instances, known method, structure and technology it are not shown specifically, in order to do not obscure the understanding of this description.
Similarly, it is to be understood that, one or more in order to what simplify that the disclosure helping understands in each inventive aspect, herein above in the description of the exemplary embodiment of the present invention, each feature of the present invention is grouped together in single embodiment, figure or descriptions thereof sometimes.But, the method for the disclosure should be construed to and reflect an intention that namely the present invention for required protection requires feature more more than the feature being expressly recited in each claim.More precisely, as the following claims reflect, inventive aspect is in that 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, wherein each claim itself as the independent embodiment of the present invention.
Those skilled in the art are appreciated that, it is possible to carry out the module in the equipment in embodiment adaptively changing and they being arranged in one or more equipment different from this embodiment.Module in embodiment or unit or assembly can be combined into a module or unit or assembly, and multiple submodule or subelement or sub-component can be put them in addition.Except at least some in such feature and/or process or unit excludes each other, it is possible to adopt any combination that all processes or the unit of all features disclosed in this specification (including adjoint claim, summary and accompanying drawing) and so disclosed any method or equipment are combined.Unless expressly stated otherwise, each feature disclosed in this specification (including adjoint claim, summary and accompanying drawing) can be replaced by the alternative features providing purpose identical, equivalent or similar.
In addition, those skilled in the art it will be appreciated that, although embodiments more described herein include some feature included in other embodiments rather than further feature, but the combination of the feature of different embodiment means to be within the scope of the present invention and form different embodiments.Such as, in the following claims, the one of any of embodiment required for protection can mode use in any combination.
The all parts embodiment of the present invention can realize with hardware, or realizes with the software module run on one or more processor, or realizes with their combination.It will be understood by those of skill in the art that the some or all functions that microprocessor or digital signal processor (DSP) can be used in practice to realize the some or all parts in the equipment transmitting data in remote control process according to embodiments of the present invention.The present invention is also implemented as part or all the equipment for performing method as described herein or device program (such as, computer program and computer program).The program of such present invention of realization can store on a computer-readable medium, or can have the form of one or more signal.Such signal can be downloaded from internet website and obtain, or provides on carrier signal, or provides 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 alternative embodiment without departing from the scope of the appended claims.In the claims, any reference marks that should not will be located between bracket is configured to limitations on claims.Word " comprises " and does not exclude the presence of the element or step not arranged in the claims.Word "a" or "an" before being positioned at element does not exclude the presence of multiple such element.The present invention by means of including the hardware of some different elements and can realize by means of properly programmed computer.In the unit claim listing some devices, several in these devices can be through same hardware branch and specifically embody.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 it can operate together with other universal or special computing system environment numerous or configuration.The example of well-known computing system, environment and/or configuration being suitable to use together with computer system/server includes but not limited to: personal computer system, server computer system, thin client, thick client computer, hand-held or laptop devices, based on the system of microprocessor, Set Top Box, programmable consumer electronics, NetPC Network PC, minicomputer system large computer system and the distributed cloud computing technology environment including any of the above described system, etc..
Computer system/server can describe under the general linguistic context of the computer system executable instruction (such as program module) performed by computer system.Generally, program module can include routine, program, target program, assembly, logic, data structure etc., and they perform specific task or realize specific abstract data type.Computer system/server can be implemented in distributed cloud computing environment, and in distributed cloud computing environment, task is to be performed by by the remote processing devices of communication network links.In distributed cloud computing environment, program module may be located on the Local or Remote computing system storage medium including storage device.
Claims (16)
1. in remote control process, transmit an equipment for data, including:
Unit is set, is suitable to, after setting up with main control end and remotely controlling to be connected, the desktop background of controlled end be shown as monochrome；
Determine unit, be adapted to determine that image waiting for transmission；Described determine that unit specifically includes: capture subelement, be suitable to carry out based on the display interface of described controlled end image-capture, obtain display interface image；Piecemeal subelement, being suitable to described display interface image division is at least two block, and described block is identified as image waiting for transmission；
Data transfer unit, if being suitable to described image waiting for transmission to include all or part of desktop background, then sends described monochromatic corresponding colour to described main control end, in order to main control end shows the desktop background of controlled end according to described colour；Described data transfer unit specifically includes: judgment sub-unit, is suitable to judge whether to include in current block all or part of desktop background；Data transmit subelement, be suitable to if it is determined that current block includes all or part of desktop background, then send the coordinate of described monochromatic corresponding colour and current block to main control end, in order to described current block is displayed by main control end according to monochromatic colour corresponding to described current block and coordinate；
Tip element, is suitable to, when the desktop background of controlled end is shown as monochrome, show corresponding information.
2. equipment as claimed in claim 1, also includes:
Recovery unit, is suitable to the instruction according to main control end or at preset time point, the desktop background of controlled end is reverted to initial condition.
3. equipment as claimed in claim 2, 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, the desktop background information of acquisition controlled end, 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 the desktop background information preserved in the described registry file specified；
Recover subelement, arrange for the desktop background according to the desktop background Information recovering controlled end read.
4. equipment as claimed in claim 3, described desktop background information includes desktop background picture and the display mode thereof that controlled end uses, and 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 interface api function provided by call operation system, 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 the display mode of controlled end desktop background picture；
Described recovery subelement includes:
Registry Modifications subelement, is suitable to the registry entry key assignments according to the desktop background information amendment system read；
Second system function call subelement, is suitable to notify that operating system refreshes the desktop background of controlled end based on amended registration table key assignments by the api function of call operation system.
5. the equipment as described in any one of claim 3 to 4, also includes:
Information deletion unit, is suitable to, after the desktop background of controlled end is arranged, delete the desktop background information preserved in the described registry file specified；
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 sky, then read the desktop background information of described preservation, and trigger described recovery subelement and arrange according to the desktop background of the desktop background Information recovering controlled end read.
6. equipment as claimed in claim 1, also includes:
Two kinds of colors if being suitable to get the color category comprised in current block is two kinds, are then indexed by indexing units respectively；
Encoding performing unit, is suitable to the index value so that two kinds of colors are corresponding respectively and described current block is encoded；
Coding delivery unit, is suitable to encode result, and the corresponding relation of described index value and color value sends 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 value, show described current block.
7. equipment as claimed in claim 1, also includes:
Flatness detection unit, if being suitable to get the color category comprised in current block to be at least three kinds, then judges the flatness of described block；
Compress mode determines unit, is suitable to determine the compress mode to described current block according to judged result；
Compression performance element, is suitable to described compress mode, the corresponding view data of described current block is compressed；
Compression data transfer unit, is suitable to the view data after by compression and sends described main control end to, in order to main control end shows described current block according to the view data after described compression.
8. equipment as claimed in claim 1, also includes:
Monitoring unit, is suitable to the display interface according to prefixed time interval intermittent scanning controlled end；
Updating block, be suitable to monitor the color change comprised in one or more described blocks in scanning every time, the block coordinate that will change, and the picture coding result after change, it is sent to main control end, so that main control end is according to described coordinate and picture coding result, one or more blocks that display is corresponding.
9. the method transmitting data in remote control process, including:
After setting up with main control end and remotely controlling to be connected, the desktop background of controlled end is shown as monochrome；
Determine image waiting for transmission, specifically comprise the following steps that the display interface based on described controlled end carries out image-capture, obtain display interface image；It is at least two block by described display interface image division, described block is identified as image waiting for transmission；
If described image waiting for transmission includes all or part of desktop background, then send described monochromatic corresponding colour to described main control end, so that main control end shows the desktop background of controlled end according to described colour, specifically comprise the following steps that and judge whether current block includes desktop background；If it is, the coordinate by described monochromatic corresponding colour and current block sends main control end to, in order to described current block is displayed by main control end according to monochromatic colour corresponding to described current block and coordinate；
When the desktop background of controlled end is shown as monochrome, show corresponding information.
10. method as claimed in claim 9, also includes:
Indicating or at preset time point according to main control end, reverts to initial condition by the desktop background of controlled end.
11. method as claimed in claim 10, described after setting up with main control end and remotely controlling to be connected, the desktop background of controlled end is shown as monochrome and includes:
After setting up with main control end and remotely controlling to be connected, the desktop background information of acquisition controlled end, and 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 initial condition 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.
12. method as claimed in claim 11, described desktop background information includes desktop background picture and the display mode thereof that controlled end uses, and described display mode includes stretching, placed in the middle or tiling, and the desktop background information of described acquisition controlled end includes:
It is operated by the application programming interface api function that calling system provides, obtains the path of the desktop background picture that controlled end uses；
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 entry key assignments according to the desktop background information amendment system read；
Notify that operating system refreshes the desktop background of controlled end based on amended registration table key assignments by the api function of call operation system.
13. the method as described in any one of claim 11 to 12, also include:
After the desktop background of controlled end is arranged, delete the desktop background information preserved in the described registry file specified；
Described at preset time point, the desktop background of controlled end is reverted to initial condition and includes:
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 sky, then read the desktop background information of described preservation, and trigger the operation that the desktop background according to the desktop background Information recovering controlled end read is arranged.
14. method as claimed in claim 9, also include:
If getting the color category comprised 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, show described current block.
15. method as claimed in claim 9, also include:
If getting the color category comprised in current block to be at least three kinds, then the flatness of described block is judged；
The compress mode to described current block is determined according to judged result；
With described compress mode, the corresponding view data of described current block is compressed；
Send the view data after compression to described main control end, in order to main control end shows described current block according to the view data after described compression.
16. method as claimed in claim 9, 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 block coordinate that will change, and the color index value after change, it is sent to main control end, so that 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 more blocks.
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| CN103036980A (en) * | 2012-12-13 | 2013-04-10 | 北京奇虎科技有限公司 | Data transmission equipment and method used for remote service |
| CN103067451A (en) * | 2012-12-13 | 2013-04-24 | 北京奇虎科技有限公司 | Device and method for carrying out data transmission in remote service |
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