CN104158915B - A kind of subregion transmission method and system for remote control - Google Patents
A kind of subregion transmission method and system for remote control Download PDFInfo
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Abstract
The invention discloses a kind of subregion transmission method and system for remote control, wherein methods described includes：A forms are obtained in local side, the forms are divided into some regions and the scan period is set respectively for each region；In local lateral root each region is scanned respectively according to the scan period in each region, whether the scan period in each region in concerned state is adjusted according to each region, and by the area transmissions that image changes to network side.The present invention effectively reduces process resource and the occupancy of transfer resource, lifts processing speed and transmission speed.
Description
Present patent application be the applying date on 02 21st, 2011, it is Application No. 201110041247.4, entitled
A kind of divisional application of the Chinese invention patent application of " subregion transmission method and system for remote control ".
Technical field
The invention belongs to remote control field, specifically, be related to a kind of subregion transmission method for remote control and
System.
Background technology
So-called remote control, refer to that administrative staff are in the controlled computing device in strange land by internet UNICOM, will
The desktop environment of controlled computing device is shown in the computing device of oneself, by local computing device to being controlled in strange land
The work such as computing device is configured, software installation procedure, modification.
The operation principle of remote control：Remote control must could be carried out by network.The computing device being located locally is
The issuing side of control command, referred to as main control end, controlled computing device non-indigenous are referred to as controlled terminal.Main control end and controlled terminal can be with
Be be located at same LAN in or be connected into internet be in any position two or more computing devices.Generally
Server is installed in the computing device of main control end, client-side program is installed in the computing device of controlled terminal；Use
When main control end computing device in client-side program of the server into the computing device of controlled terminal send signal, build
A special remote service is found, then by this remote service, remote control is sent using various remote control functions and orders
Order, controls the various application programs in the computing device of controlled terminal to run.
VNC (Virtual Network Computing Virtual network computers) is exactly a kind of remote control technology, essence
On belong to a kind of cross-platform display system, by the complete window interface of the computing device of controlled terminal pass through network transmission to master
Control and shown on the computing device screen at end.When computing device of the operator using the computing device control controlled terminal of main control end,
Just as the same before the screen for the computing device for being sitting in controlled terminal, the application program of controlled terminal computing device can be started, can be with
Using or steal the documentation of controlled terminal computing device, it might even be possible to utilize the outside printing device of controlled terminal computing device
(printer) and communication equipment (modem or special line etc.) are printed and accessed outer net and Intranet.
Because VNC is an abstraction tool, and the graphics system of client native does not contact directly, and VNC technologies are
The whole screen of controlled terminal is captured, to main control end and shown screen as a bitmap transmissions, therefore, even if
Controlled terminal is only to have rolled a line document, and VNC can also intercept whole screen again and be sent to main control end and be shown, and connect
Continuous that screenshotss transmission is repeatedly carried out to whole screen, the data volume transmitted will necessarily be very big, can also be consumed in main control end reproduction screen
Take more multiple resource, efficiency of transmission and treatment effeciency are all very low, and this will directly result in the frame updating speed shown by main control end
Degree is very slow, and picture seriously lags, and the DeGrain refreshed, so as to influence remote control of the main control end to controlled terminal, gives
The sensation of the user of controlled terminal is exactly that the reaction of the main control end of remote control is very insensitive, very big delay be present.Work as quilt
When controlling the application program opening of some graphic pictures change at end quickly, VNC is more difficult to deal with, and delay can become apparent from.
The content of the invention
In view of this, the technical problems to be solved by the invention there is provided a kind of subregion transmission side for remote control
Method and system, it can so effectively reduce process resource and the occupancy of transfer resource, lifting processing speed and transmission speed
Degree.
In order to solve the above-mentioned technical problem, the invention discloses a kind of subregion transmission method for remote control, including：
A forms are obtained in local side, the forms are divided into some regions and the scan period is set respectively for each region；In local
Lateral root is scanned to each region respectively according to the scan period in each region, and whether concerned state is in adjust according to each region
The scan period in whole each region, and by the area transmissions that image changes to network side.
Further, in addition to：Each region is scanned simultaneously every a fixed cycle in local side, sent out according to image
The situation for changing adjusts the scan period in each region, by the area transmissions that image changes to network side.
Further, by the area transmissions that image changes to network side the step of, in addition to：Image is changed
The positional information in region also transmit together to network side.
Further, in addition to：In the network side according to the positional information, the image in the region received is replaced
The relevant position into the forms, reappear the forms in the network side.
Further, whether concerned state is in adjust the step of the scan period in each region according to each region
Suddenly, including：A weight is assigned to each region, the corresponding scan period is set according to different proportion ranges；According to each region
Scan period detect respectively each region whether in concerned state and for each region adjust weight, according to each region
Proportion range residing for weight adjusts the scan period in each region.
Further, the region is scanned according to the scan period in a region, detect the region be in by
Concern state, then increase the weight in the region, be not further added by if having increased to maximum；Detect the region be not in by
Concern state, then the weight in the region is reduced, is no longer reduced if having minimized value；The weight is bigger, the scan period
It is shorter.
Further, the region is scanned according to the scan period in a region, detect the region be in by
Concern state, then increase the weight in the region；Detect that the region is not in concerned state, then often detect it is described
Single pass is carried out to the region when region is in concerned state.
Further, the concerned state, including following one or more combination：Clicked on by mouse, mouse track
By, with upper scan cycle obtain image compared with change.
Further, by the area transmissions that image changes to network side the step of, including：Image is sent out in local side
The region division for changing is some blocks；For each block, the element wherein included is identified, if there is an element area
Proportion that is maximum and accounting for the area of the block is more than a thresholding, using compress mode corresponding with the classification of the element to institute
Block is stated to be compressed and transmit to network side.
Further, by the area transmissions that image changes to network side the step of, in addition to：By the position of each block
Information transfer is to network side；Received in the network side and decompress the image of each block, the position according to each block is believed
Cease and the image of each block is recombinated, by the restore-zone.
In order to solve the above-mentioned technical problem, the invention discloses a kind of subregion Transmission system for remote control, including：
Subregion transmitting device and reception device；The subregion transmitting device, for obtaining a forms, the forms are divided into some areas
Domain simultaneously sets the scan period respectively for each region, each region is scanned respectively according to the scan period in each region, according to every
Whether individual region is in concerned state to adjust the scan period in each region, and the area transmissions that image is changed are extremely
The reception device；The reception device, for the image in the region received to be substituted into relevant position in the forms,
The network side reappears the forms.
Further, the subregion transmitting device, the positional information in the region for being additionally operable to change image pass together
Transport to the reception device；The reception device, it is additionally operable to replace the image in the region received according to the positional information
The relevant position into the forms.
Further, the subregion transmitting device, it is additionally operable to each region while be scanned, root every a fixed cycle
Situation about being changed according to image adjusts the scan period in each region, and the area transmissions that image changes to described receive are filled
Put.
Further, the subregion transmitting device, it is additionally operable to assign a weight to each region, according to different weight models
Enclose and the corresponding scan period is set, detect whether each region is in concerned state simultaneously respectively according to the scan period in each region
Weight is adjusted for each region, the proportion range according to residing for the weight in each region adjusts the scan period in each region.
Further, the subregion transmitting device, it is further used for entering the region according to the scan period in a region
Row scanning, detects that the region is in concerned state, then increases the weight in the region, detect that the region is not in
Concerned state, then the weight in the region is reduced, the weight is bigger, and the scan period is shorter.
Further, the subregion transmitting device, it is further used for entering the region according to the scan period in a region
Row scanning, detects that the region is in concerned state, then increases the weight in the region；Detect that the region is not in
Concerned state, then single pass is carried out to the region when often detecting that the region is in concerned state.
Further, the subregion transmitting device, detect that the region is in concerned state, according to next or
Multiple combinations：Clicked on by mouse, mouse track passes through, is changed compared with the image that upper scan cycle obtains.
Further, the subregion transmitting device, the region division that image is changed is some blocks, for each
Block, the element wherein included is identified, if there is element area maximum and account for the proportion of the area of the block more than one
Thresholding, the block is compressed using compress mode corresponding with the classification of the element and believed with the position of the block
Breath transmits to the reception device together.
Further, the reception device, it is additionally operable to receive and decompresses the image of each block, according to each block
Positional information recombinates to the image of each block, by the restore-zone.
Compared with currently existing scheme, the technique effect of the invention obtained：
1) present invention to forms subregion by carrying out distinguishing monitoring, it is only necessary to carries out high density for active region
Detection, low-density detection is carried out for sluggish region, can so effectively reduce CPU occupancy；
2) scan period in the identification for active regions and each region is adaptively adjusted, this flexibility
So that it can still ensure to scan accurately when the active degree change in region；
3) region that change is only transmitted when transmitting image then substantially reduces the total amount of data of required transmission, and image becomes
The region of change is that crawl transmission is carried out within the respective scan period, and time sharing transmissions are carried out equivalent to the region for changing these,
Further reduce data volume.
Brief description of the drawings
Fig. 1 is the general flow chart for forms processing of the embodiment of the present invention；
Fig. 2 is the thin portion flow chart for block processes of the embodiment of the present invention；
Fig. 3 is the first schematic diagram of application example of the present invention；
Fig. 4 is the second schematic diagram of application example of the present invention；
Fig. 5 is the 3rd schematic diagram of application example of the present invention；
Fig. 6 is the system schematic of the embodiment of the present invention.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with schema and embodiment, and thereby how the present invention is applied
Technological means can fully understand and implement according to this to solve technical problem and reach the implementation process of technical effect.
The core idea of the present invention is：A forms are obtained in local side, the forms are divided into some regions and are
Each region sets the scan period respectively；Each region is scanned respectively according to the scan period in each region in local lateral root, according to
Whether each region is in concerned state to adjust the scan period in each region, and the area transmissions that image is changed
To network side.
Detect that the region is in concerned state, according to following one or more combination：Clicked on by mouse, mouse
Track is passed through, changed compared with the image that upper scan cycle obtains；The forms, can be system desktop, can also
It is that system desktop is divided into a certain region behind some regions or the region to being obtained behind a certain zone subdivision area
One of or desktop on the forms (such as zooming in or out forms) that change of emerging forms or shape,
The present invention is not limited thereto.
The subregion transmission method for remote control of the present invention is illustrated with one embodiment below.User receives
The request of server, the terminal for taking over user carry out remote control, it is necessary to which server is in real time or all during remote control
The desktop of user terminal is captured to phase, and the form for saving as picture is sent on server and shown, so as in server
The desktop of upper reduction user terminal, maintains easily the terminal that personnel control user on the server.
The subregion transmission method for remote control of the present invention, it is effective applied to side joint is serviced when carrying out remote control
Family side, capture the process of the desktop of user terminal.As shown in figure 1, specifically include following operation：
Step S1, local side obtain a forms, the forms are divided into some regions, respectively perform step S2 and
S7；
The forms are obtained according to the GDI (Graphics Device Interface GDIs) of internal system；
The forms are divided into some regions by any-mode, for example, affiliated forms can be divided into nine regions by nine grids, also may be used
To be divided into 16 lattice etc., the present invention is not limited thereto；Also need to obtain initial pictures and the transmission of the forms in local side
To network side, the forms are reappeared based on the initial pictures in network side afterwards；
Step S2, be set respectively for each region the respective scan period；
It is now original state, gives tacit consent to and each region is arranged to the identical scan period；
Step S3, each region is scanned respectively according to the scan period in each region in local lateral root, performed respectively afterwards
Step S4 and step S6；
Scanning obtains the image in each region, while can also obtain whether each region is clicked on by mouse, whether by mouse rail
Mark passes through；
Step S4, by the area transmissions that image changes to network side；
For each region, the image of the current region obtained will be scanned, obtained with current region in upper scan cycle
Image be compared, in the event of change, then by the image transmitting in the region to network side；The area that image is changed
The positional information in domain is also transmitted to network side together；The region that image changes can be the content hair of the forms in the region
Changing, occurs the forms newly opened in the region or forms that shape changes are stretched in the region and (such as put
Big or diminution forms)；
Step S5, the image in the region received is substituted into relevant position in the forms in the network side, in institute
State network side and reappear the forms, flow terminates；
At a certain moment, the image in a region is received in the network side, the area that will be received according to the positional information
The image in domain is substituted into the relevant position of the forms, so as to reappear the window that this moment local side shows in network side
Body；
Step S6, whether concerned state is in adjust the scan period in each region according to each region, return is held
Row step S3；
A weight is assigned to each region, the corresponding scan period is set according to different proportion ranges；According to each region
Scan period detect respectively each region whether in concerned state and for each region adjust weight, according to each region
Proportion range residing for weight adjusts the scan period in each region；
For example, being directed to a certain region, the region is scanned according to the scan period in the region, when detecting
When stating region and being in concerned state, then increase the weight in the region, be not further added by if having increased to maximum before, now
Keep maximum；When detecting that the region is not in concerned state, then the weight in the region is reduced, such as subtracted before
Then no longer reduced to minimum value, now keep minimum value；Weight is higher, and the scan period is shorter；Weight is lower, and the scan period gets over
It is long；Detect whether a certain region is in concerned state, can detect whether the region is clicked on by mouse and/or whether by mouse
Whether mark track is passed through and/or is changed compared with the image that upper scan cycle obtains；In practical operation, typically recognize
For the region is clicked on by mouse thinks that it is in concerned state, and the region is by mouse track by thinking at its
In concerned state, the image in the region changed compared with the image that upper scan cycle obtains think its be in by
Concern state；
For example, it is also possible to be scanned according to the scan period in a region to the region, detect that the region is in
Concerned state, then increase the weight in the region；Detect that the region is not in concerned state, then no longer to the area
Domain is scanned by its scan period, but just the region is carried out when often detecting that the region is in concerned state
Single pass, event-triggered scanning so can be carried out for the region that some have lost focus, further reduces process resource
Consumption；
Step S7, each region is scanned simultaneously every a fixed cycle in local side, changed according to image
Situation adjusts the scan period in each region, by the area transmissions that image changes to network side, performs step S5；
For be considered as being not in concerned state in step S2-S6 and scan period longer region, if suddenly
The image of appearance, it can find and obtain in time by way of this step, and the short region to change can be adjusted
Scan period；In addition, it is necessary to the positional information in the region that image is changed also is transmitted to network side together.Realize every
Fixed cycle is scanned and can also realized by such mode simultaneously to each region：It is fixed to the configuration rule of scan period
Justice is to carry out multiple with a base cycle to increase, such as：0.5 second, 2 seconds, 4 seconds etc. is configured with 2 multiple, thus
Equivalent to every the scan period most long in each region, single pass can be carried out to each region simultaneously.
The present invention, by the area transmissions that image changes to network side, can be passed for step S4 and S7 by classifying
Defeated mode is by the image transmitting in the region to network side.
The region to be changed to a certain image, as shown in Fig. 2 comprising the following steps：
Step SS1, the region is obtained in local side；
Step SS2, it is some blocks by the region division；
The region is divided into some blocks by any-mode, for example, the region can be divided into nine by nine grids
Block, 16 lattice etc. can also be divided into, the present invention is not limited thereto；
Step SS3, the element wherein included for the identification of each block；
The element, is comprised at least：Background, word and/or picture；
The background in the element in the block is identified according to the GDI GDI of internal system；, can for background
To be the picture of various colors, it is also possible to be the picture of solid color；
The color category included to the block is identified, and the block is identified according to the quantity of the color category
Word and/or picture in interior element；In general, the species for the color that picture is included can be relatively abundanter, and schemes relatively
For piece, the color category that word is included is then more single, can be that color category sets a thresholding, color category therefore
Quantity when being less than the thresholding, it is word to identify the element；When the quantity of the color category is more than the thresholding, identification
The element is picture；
Can be that color category sets the first thresholding and second it is, of course, also possible to carry out finer division to picture
Limit, first thresholding are more than the second thresholding；When the quantity of color category is less than second thresholding, identify the element for text
Word；When the quantity of the color category is more than first thresholding, it is coloury picture to identify the element；The color
When species is between the first thresholding and the second thresholding, the picture that color does not enrich is identified as；
Step SS4, find out the wherein element of occupied area maximum for each block and judge that the element accounts for the area
The proportion of the area of block, if the element accounts for the proportion of the area of the block more than a thresholding, step SS6 is performed, if
The element accounts for the proportion of the area of the block not less than a thresholding, performs step SS5；
In general, can be with if the maximum element of the area accounts for the proportion of the block more than a pre-determined threshold
Think that the block is mainly made up of this element；If the element accounts for the proportion of the block not less than the thresholding,
Then illustrate that element species in the block are various and average filling, the block is not to be mainly made up of certain element；
Step SS5, some two level blocks are further subdivided into by the block, and step is performed again for each two level block
SS3, identify the element wherein included；
Because the block is not to be mainly made up of certain element, inhomogeneous element is applied to different compression sides
Formula, so can not now select the block suitable compress mode；Some two level areas can be further subdivided into the block
Block, two level block is divided by any-mode, for example, the block can be divided into nine two level blocks by nine grids, can also
It is divided into 16 lattice etc., the present invention is not limited thereto.If main composition member now can not be still determined in some two level blocks
Element, two level block can also be divided again, and carry out successive ignition, the present invention is not limited thereto；
Step SS6, the block is compressed and transmitted to net using compress mode corresponding with the element category
Network side, while the positional information of the block is also transmitted to network side；
Because the block is mainly made up of this element, this block is compressed accordingly using this element
Mode is most effective and suitable；
Selection for compress mode, following principle can be followed：
To the block being mainly made up of word, word is main object, and word often carries the number for needing naked eyes identification
According to, it is therefore desirable to ensure the quality of data convert, and the size of word in itself is also smaller, can use Lossless Compression mode；
The block formed for the picture not enriched by color mainly, the picture that color does not enrich are main objects, due to
This picture size in itself is simultaneously little, can use lossless coding compress mode；
For the block being mainly made up of coloury picture, coloury picture is main object, for long-range
This picture is not often critical data for control, it is allowed to certain distortion, therefore lossy coding compress mode can be used,
Such as JPG, higher compression ratio can be obtained, greatly reduces dimension of picture, higher speed is obtained in transmission.
, can be by the size in region after such classified compression compared with directly crawl whole region is transmitted
30%-50% is reduced, greatly reduces data volume, and transmission rate is greatly improved；
Step SS7, received in network side and decompress the image of each block, the positional information according to each block is in network side
Each block is recombinated, most at last this when inscribe the restore-zone that the image of local side changes, and by the region
Replace the relevant position for being shown in forms；
Positional information can be transverse and longitudinal coordinate of each block on the region that image changes.
The method of the present invention is illustrated with an application example again below.
User A receives the request of server B, the computing device of user is taken over to carrying out remote control, in remote control
During, it is necessary to which server B captures user A computing device desktop and saves as the form of picture in real time or periodically is sent to
Shown in server B, so as to go back original subscriber A computing device desktop in server B, maintain easily personnel in server
User A computing device is controlled on B.
In remote control, as shown in figure 3, the desktop of user A computing device is divided into 16 regions by server B,
Each region assigns an initial weight 1；Concurrently set proportion range 2-4 and correspond to the scan period as 0.5 second, proportion range 5-7
The corresponding scan period is 0.1 second, and the weight is higher, and the scan period is shorter；The other full screen scan period is 2 seconds.
The region is scanned according to the scan period in each region, detects that the region is in concerned state,
Then increase the weight in the region, detect that the region is not in concerned state, then reduce the weight in the region；Typically
Think, the region is clicked on by mouse thinks that it is in concerned state, and the region is by mouse track by thinking it
In concerned state, the image in the region changes compared with the image that upper scan cycle obtains thinks that it is in
Concerned state.
So after a period of time, as shown in figure 4, region A weight is 4, region B weight is 7, according to its weight institute
The proportion range at place can obtain the corresponding scan period and go forward side by side Mobile state setting, and region A scan period is 0.5 second, region B
Scan period be 0.1 second；
Each hot spot region is scanned respectively according to each sector scanning cycle, every 0.5 second scanning area A, swept within every 0.1 second
Retouch region B；In scanning area B, it is found that the image that upper scan cycle obtains compared with the B of region is compared, image does not occur
Change, and detect and find that mouse does not click on region B in this scan cycle yet, mouse track does not streak region B yet yet,
Then think that region B is not in concerned state in this scan cycle, then region B weight is reduced to 6, the scan period is still
It is arranged to 0.1 second.Due to region B, image does not change in present scanning cycle, then region B need not be issued into network
Side；
In scanning area A, detection finds that mouse does not click on region A yet in this scan cycle, also mouse track
Region A is not streaked, but detects the image for finding the upper scan cycle acquisition compared with the A of region compared to being changed, then
Think that region A is in concerned state in this scan cycle, then region A weight is upgraded to 5, scan period relative set
For 0.1 second, region A is scanned every 0.1 second.Due to region A, image is changed in present scanning cycle, then is needed
Region A image is issued into network side.
Simultaneously in order to ensure the precision of remote monitoring, a full screen scanning is carried out within every 2 seconds, i.e., to all areas with identical
2 seconds cycles be scanned.For example, region C weights are 1, being chronically at non-concerned state, then the scan period is longer, but
Region C position one dialog box of ejection suddenly in system desktop, as shown in figure 5, now according to region C scan period,
It was found that this dialog box and region C is transmitted and may taken long enough, or not yet scan, this dialog box has disappeared
Lose, so as to which very important data may be missed when network side reappears；At this moment a full screen scanning is performed within every 2 seconds,
Can at the right time find the dialog box of this ejection, and confirm that this image change occurs in region C, then by region C
Image transmitting to network side, and now it is considered that region C be in concerned state, its weight is upgraded to 2, corresponding tune
The whole scan period.
The subregion Transmission system for remote control of the present invention is illustrated with one embodiment below.
As shown in fig. 6, the subregion Transmission system for remote control, including：Local side device A, that is, it is used for long-range
The subregion transmitting device of control, and network side apparatus B, the i.e. reception device for remote control；
The local side device A, receives the control of the network side apparatus B, and for obtaining a forms, the forms are drawn
It is divided into some regions and the scan period is set respectively for each region, each region is swept respectively according to the scan period in each region
Retouch, whether concerned state is in adjust the scan period in each region according to each region, and image is changed
Region and its positional information are transmitted to the network side apparatus B；
The network side apparatus B, for the image in the region received to be substituted into the window according to the positional information
Relevant position in body, reappear the forms in the network side.
Specifically, the local side device A, it is additionally operable to each region while be scanned, root every a fixed cycle
Situation about being changed according to image adjusts the scan period in each region, and the area transmissions that image changes to described receive are filled
Put.
The local side device A, the subregion transmitting device, it is additionally operable to assign a weight to each region, according to different
Proportion range corresponding scan period is set, whether each region is detected in being closed according to the scan period in each region respectively
Note state simultaneously adjusts weight for each region, and the proportion range according to residing for the weight in each region adjusts the scanning week in each region
Phase.
The local side device A, it is further used for being scanned the region according to the scan period in a region, detects
Concerned state is in the region, then increases the weight in the region；Detect that the region is not in concerned state,
Then reduce the weight in the region or the region is carried out once when often detecting that the region is in concerned state
Scanning.
The local side device A, detect that the region is in concerned state, according to following one or more group
Close：Clicked on by mouse, mouse track passes through, is changed compared with the image that upper scan cycle obtains.
The local side device A, the region division that image is changed are some blocks, for each block, identification
The element wherein included, proportion that is maximum if there is an element area and accounting for the area of the block use more than a thresholding
The block is compressed with the classification of the element corresponding compress mode and passed together with the positional information of the block
Transport to the network side apparatus B.
The network side apparatus B, it is additionally operable to receive and decompresses the image of each block, the position according to each block is believed
Cease and the image of each block is recombinated, by the restore-zone.
The feature of the subregion transmission method of said system and device with being previously used for remote control is corresponding, and weak point can be with
With reference to the subregion transmission method for being previously used for remote control.
Some preferred embodiments of the present invention have shown and described in described above, but as previously described, it should be understood that the present invention
Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations,
Modification and environment, and above-mentioned teaching or the technology or knowledge of association area can be passed through in the scope of the invention is set forth herein
It is modified., then all should be in this hair and the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention
In the protection domain of bright appended claims.
Claims (17)
- A kind of 1. subregion transmission method for remote control, it is characterised in that including：A forms are obtained in local side, the forms are divided into some regions and the scan period is set respectively for each region；Each region is scanned respectively according to the scan period in each region in local lateral root, closed according to whether each region is in Note state adjusts the scan period in each region, and by area transmissions that image changes to network side；Each region is scanned simultaneously every a fixed cycle in local side, situation about being changed according to image adjusts each area The scan period in domain, by the area transmissions that image changes to network side.
- 2. subregion transmission method as claimed in claim 1, it is characterised in that by the area transmissions that image changes to network The step of side, in addition to：The positional information in the region that image is changed also is transmitted to network side together.
- 3. subregion transmission method as claimed in claim 2, it is characterised in that also include：In the network side according to the positional information, the image in the region received is substituted into corresponding positions in the forms Put, reappear the forms in the network side.
- 4. subregion transmission method as claimed in claim 1, it is characterised in that whether concerned state is according to each region The step of to adjust the scan period in each region, further comprise：A weight is assigned to each region, the corresponding scan period is set according to different proportion ranges；According to the scan period in each region detect respectively each region whether in concerned state and for each region adjustment power Weight, the proportion range according to residing for the weight in each region adjust the scan period in each region.
- 5. subregion transmission method as claimed in claim 1, it is characterised in thatThe region is scanned according to the scan period in a region, detects that the region is in concerned state, then increases Add the weight in the region, be not further added by if having increased to maximum；Detect that the region is not in concerned state, then subtract The weight in few region, is no longer reduced if having minimized value；The weight is bigger, and the scan period is shorter.
- 6. subregion transmission method as claimed in claim 1, it is characterised in thatThe region is scanned according to the scan period in a region, detects that the region is in concerned state, then increases Add the weight in the region；Detect that the region is not in concerned state, then often detect the region be in closed Single pass is carried out to the region during note state.
- 7. the subregion transmission method as described in claim 1 or 5 or 6, it is characterised in thatThe concerned state, including following one or more combination：Clicked on by mouse, mouse track passes through, with above sweeping The image of cycle acquisition is retouched compared to changing.
- 8. subregion transmission method as claimed in claim 1, it is characterised in that by the area transmissions that image changes to network The step of side, including：It is some blocks in the region division that local side changes image；For each block, the element wherein included is identified, if there is element area maximum and accounts for the area of the block Proportion more than a thresholding, the block is compressed using compress mode corresponding with the classification of the element and transmit to Network side.
- 9. subregion transmission method as claimed in claim 8, it is characterised in that by the area transmissions that image changes to network The step of side, in addition to：The positional information of each block is transmitted to network side；Received in the network side and decompress the image of each block, the positional information according to each block is to the figure of each block As being recombinated, by the restore-zone.
- A kind of 10. subregion Transmission system for remote control, it is characterised in that including：Subregion transmitting device and reception device；The subregion transmitting device, for obtaining a forms, the forms are divided into some regions and set respectively for each region The scan period is put, each region is scanned respectively according to the scan period in each region, is closed according to whether each region is in Note state adjusts the scan period in each region, and by area transmissions that image changes to the reception device；The reception device, for the image in the region received to be substituted into relevant position in the forms, stress in network The existing forms；The subregion transmitting device, it is additionally operable to each region while be scanned every a fixed cycle, is become according to image The situation of change adjusts the scan period in each region, by the area transmissions that image changes to the reception device.
- 11. subregion Transmission system as claimed in claim 10, it is characterised in thatThe subregion transmitting device, the positional information in the region for being additionally operable to change image is transmitted to described together receives dress Put；The reception device, it is additionally operable to that the image in the region received is substituted into phase in the forms according to the positional information Answer position.
- 12. subregion Transmission system as claimed in claim 10, it is characterised in thatThe subregion transmitting device, it is additionally operable to assign a weight to each region, is set according to different proportion ranges corresponding Scan period, according to the scan period in each region detect respectively each region whether in concerned state and for each region adjust Whole weight, the proportion range according to residing for the weight in each region adjust the scan period in each region.
- 13. subregion Transmission system as claimed in claim 10, it is characterised in thatThe subregion transmitting device, it is further used for being scanned the region according to the scan period in a region, detects The region is in concerned state, then increases the weight in the region, detect that the region is not in concerned state, then The weight in the region is reduced, the weight is bigger, and the scan period is shorter.
- 14. subregion Transmission system as claimed in claim 10, it is characterised in thatThe subregion transmitting device, it is further used for being scanned the region according to the scan period in a region, detects The region is in concerned state, then increases the weight in the region；Detect that the region is not in concerned state, then Single pass is carried out to the region when often detecting that the region is in concerned state.
- 15. the subregion Transmission system as described in claim 10 or 13 or 14, it is characterised in thatThe subregion transmitting device, detect that the region is in concerned state, according to following one or more combination：Quilt Mouse is clicked on, mouse track passes through, is changed compared with the image that upper scan cycle obtains.
- 16. subregion Transmission system as claimed in claim 10, it is characterised in thatThe subregion transmitting device, the region division that image is changed are some blocks, and for each block, identification is wherein Comprising element, proportion that is maximum if there is an element area and accounting for the area of the block more than a thresholding, using with institute State element classification corresponding compress mode the block is compressed and transmitted together with the positional information of the block to The reception device.
- 17. subregion Transmission system as claimed in claim 16, it is characterised in thatThe reception device, it is additionally operable to receive and decompresses the image of each block, the positional information according to each block is to each The image of block is recombinated, by the restore-zone.
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| CN201410461357.XA CN104158915B (en) | 2011-02-21 | 2011-02-21 | A kind of subregion transmission method and system for remote control |
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| CN201110041247.4A CN102164166B (en) | 2011-02-21 | 2011-02-21 | Method and system for remote-control sector transmission |
| CN201410461357.XA CN104158915B (en) | 2011-02-21 | 2011-02-21 | A kind of subregion transmission method and system for remote control |
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| CN104852959A (en) * | 2015-04-09 | 2015-08-19 | 福建星网视易信息系统有限公司 | Data transmission method and system for remote service |
| CN109788313A (en) * | 2017-11-10 | 2019-05-21 | 中兴通讯股份有限公司 | A kind of image transfer method, device and equipment |
| CN108694403B (en) * | 2018-05-31 | 2021-08-31 | 中南大学湘雅医院 | Skin flap transplantation postoperative care monitoring system and method, and data management method and device |
| CN108898580B (en) * | 2018-05-31 | 2021-08-27 | 中南大学湘雅医院 | Skin flap transplantation postoperative care monitoring system and method, management system and storage medium |
| CN111818150B (en) * | 2020-07-03 | 2021-03-05 | 重庆中科云仿科技有限公司 | CAE simulation system based on cloud platform |
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