CN115412535A - Transmission method for remote data sharing - Google Patents

Abstract

The invention discloses a transmission method for remote data sharing, and belongs to the technical field of network data communication. The invention divides the computer screen picture into n small rectangular blocks evenly, and numbers the small rectangular blocks according to the sequence; numbering the pixel points on each small rectangular block according to a sequence; calculating an integer value of a primary color of a certain pixel of each small rectangular block to obtain an integer Rn; correlating the obtained integer Rn with the position number of the small rectangular block, and obtaining an integer Rn corresponding to each small rectangular block to obtain an array arr; comparing the integer Rn obtained by calculating each small rectangular block of the computer screen picture with the Rn value in the array arr at a certain interval time, and if the integer Rn is consistent with the Rn value in the array arr, not processing the integer Rn; and if the pictures are inconsistent, replacing and covering the corresponding small pictures on the existing pictures. The invention aims to provide a transmission method for remote data sharing, which can transmit the screen picture of a monitored end to a monitoring end in real time under the condition of utilizing lower bandwidth.

Description

Transmission method for remote data sharing

Technical Field

The invention belongs to the technical field of network data communication, and particularly relates to a transmission method for remote data sharing.

Background

With the development of science and technology, more and more computers need to run for 24 hours, when the computers need to be remotely monitored and checked, the data bandwidth of the computers is occupied, under the condition of limited bandwidth, the computers cannot be smoothly monitored, and the contents of program software and the like originally running on the computers can be greatly influenced. Therefore, it is urgently needed to design a transmission method for remote data sharing, which can transmit the screen picture of the monitored terminal to the monitoring terminal in real time by occupying a lower bandwidth, so as to better monitor the program running condition of the monitored terminal.

Through retrieval, a great number of patents have been published on the technical application of picture remote transmission, such as chinese patent application nos.: 201210541210.2, the name of inventive creation is: the application discloses data transmission equipment and a method for remote service, wherein the method comprises the steps of acquiring desktop background information and storing the desktop background information into a specified registry file after establishing remote control connection with a main control end; setting the desktop background of the controlled end to be a single color according to a preset color value; determining an image to be transmitted; if the image to be transmitted comprises all or part of the desktop background, transmitting the color value corresponding to the single color to the main control end so that the main control end can display the desktop background of the controlled end according to the color value; according to the instruction of the master control end or at a preset time point, reading desktop background information stored in a specified registry file, and restoring the desktop background setting of the controlled end according to the read desktop background information; and when the desktop background of the controlled end is displayed as a single color, displaying corresponding prompt information. The invention can reduce the bandwidth occupied by transmitting the background picture of the controlled terminal.

Also, for example, the Chinese patent application number is: 201210541225.9, the name of inventive creation is: a remote data transmission device and method, disclose a remote data transmission device and method, the method includes after setting up the remote control connection with the top management end, display the desktop background of the controlled end as the monochrome; acquiring a display interface image; dividing a display interface image into at least two blocks, and respectively determining the blocks as images to be transmitted; if all the current blocks are desktop backgrounds, color values corresponding to the unicolors are transmitted to the main control terminal so that the main control terminal can display the current blocks according to the color values; if the color types are at least three, judging the smoothness; determining a compression mode according to a judgment result; if the color types are two, respectively indexing the two colors; encoding the current block by using the index value; and the main control end displays the current block according to the coding result and the corresponding relation between the index value and the color value. By the method and the device, the occupied bandwidth during the transmission of the background picture of the controlled end can be reduced, and the fluency of remote control operation is improved.

Disclosure of Invention

1. Problems to be solved

Aiming at the problems in the prior art, the invention aims to provide a transmission method for remote data sharing, which can transmit the screen picture of a monitored end to the monitoring end in real time under the condition of limited bandwidth, reduce the bandwidth occupation of remote monitoring and avoid influencing the real-time monitoring effect.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The invention relates to a transmission method for remote data sharing, which comprises the following steps:

a, when the monitored end computer software runs for the first time, integrally transmitting the monitored end computer screen picture to a monitoring end, and acquiring a first complete computer screen picture of the monitored end by the monitoring end;

b, uniformly dividing the computer screen picture into n small rectangular blocks according to the horizontal coordinate and the vertical coordinate, and numbering the small rectangular blocks from the upper left to the lower right in sequence, wherein the number is 1,2,3.. N;

c, processing each small rectangular block as follows:

c1, numbering pixel points on each small rectangular block from the upper left to the lower right in sequence, wherein the pixel points are numbered in 0,1,2,3.. I;

c2, calculating an integral value of a certain pixel primary color of each small rectangular block according to a formula, taking red R as an example, the formula is 0R (P0) + 1R (P1) + i R (Pi), and obtaining an integer Rn, wherein R (Pi) is the red R value of the pixel primary color in the ith pixel point position;

c3, correlating the obtained integer Rn with the position number of the small rectangular block, and obtaining an integer Rn by corresponding each small rectangular block;

d, storing an integer value Rn obtained by calculating n small rectangular blocks of the whole computer screen picture in an array arr to obtain an original array arr;

e, setting a certain interval time, repeating the steps B, C and D, judging whether an integer Rn obtained by calculating each small rectangular block of the computer screen picture at the moment is consistent with the Rn value of the small rectangular block with the corresponding number in the original array arr by the monitored end, if so, indicating that the screen picture of the monitored end is not changed, and not processing at the moment; if the images are not consistent, the change of the screen images of the monitored end is indicated, data are sent to the monitoring end, and the changed integer value Rn in the array and the images and the serial numbers of the corresponding small rectangular blocks are sent to the monitoring end;

and F, when the monitoring end receives the data transmitted by the monitored end, replacing the picture of the small rectangular block with the corresponding number on the existing computer screen picture of the monitoring end with the picture of the small rectangular block transmitted by the monitored end.

As a further improvement of the invention, the method also comprises a step G of sending the whole computer screen picture of the monitored terminal to the monitoring terminal when the timer runs for N times at a set interval, and carrying out integral replacement covering on the original picture after the monitoring terminal receives the picture.

As a further improvement of the invention, the remote software of the monitored end acquires the picture data of the whole computer screen by using the interface of the computer operating system.

As a further improvement of the present invention, in step E, a certain interval time is set as the timing start time of the timer, when the timer is started next time, the monitored terminal repeats steps B, C, and D to obtain a group of data sets arr, and compares the data sets arr with the values in the previous group of data sets arr one by one, if the values in the data sets arr do not change at all, no processing is performed; and if one or more numerical values in the data group arr change, sending the changed data to the monitoring end, and sending the changed integer value Rn in the array and the pictures and the numbers of the corresponding small rectangular blocks to the monitoring end.

As a further improvement of the present invention, each time the timer is started, a new data set arr is obtained, and if there is no change in the value of the new data set arr compared with the value in the previous data set arr, no processing is required; if the change occurs, the value in the data set arr covering the previous data set is replaced by the new data set arr, and when the timer is started again, the value in the new data set arr after replacing the covering is compared.

As a further improvement of the present invention, in step G, while sending the whole computer screen picture of the monitored terminal to the monitoring terminal, the computer screen picture of the monitored terminal at this moment is also subjected to block analysis, and after repeating steps B, C, and D, a corresponding group of data sets arr is obtained, and the group of data sets arr is replaced and covered with the numerical value in the group of data sets arr.

As a further improvement of the present invention, the present invention further comprises another transmission mode, wherein the another transmission mode comprises the following operation steps:

s1, a monitoring end sends area coordinates (x 1, y1; x2, y 2) of a computer screen picture of a certain area needing to be transmitted to a monitored end, wherein (x 1, y 1) is the coordinates of the upper left corner of the area, and (x 2, y 2) is the coordinates of the lower right corner of the area;

s2, after receiving the area coordinate data sent by the monitoring end, the monitored end starts to send the computer screen picture data of the area to the monitoring end at regular time;

and S3, the monitoring end receives the computer screen picture data of the area sent by the monitored end, displays the computer screen picture data on the monitoring screen of the monitoring end and always replaces the computer screen picture data covering the previous area.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) The transmission method for remote data sharing can transmit the screen picture of the monitored end to the monitoring end in real time under the condition of limited bandwidth, and avoids influencing the real-time monitoring effect and the running condition of original software of the monitored end.

(2) The invention relates to a transmission method for remote data sharing.A monitored terminal judges whether an integer Rn obtained by calculating each small rectangular block of a computer screen picture at the moment is consistent with the Rn value of the small rectangular block with the corresponding number in an original array arr, if so, the monitored terminal screen picture is not changed, and the monitored terminal screen picture is not processed; if the screen pictures of the monitored end are inconsistent, the screen pictures of the monitored end are changed, data are sent to the monitoring end, the changed integer values Rn in the array and the pictures and the serial numbers of the corresponding small rectangular blocks are sent to the monitoring end, the whole computer screen picture does not need to be transmitted to the monitoring end, and only the pictures corresponding to the changed small rectangular blocks need to be transmitted to the monitoring end, so that the occupied bandwidth in the transmission process is greatly reduced, the transmission speed is improved, and the real-time monitoring is facilitated.

(3) According to the transmission method for remote data sharing, due to the fact that a certain probability exists, pixels of a certain small rectangular block change, but the calculated integer Rn does not change, and in order to avoid the problem that monitoring is not in place under the condition, when a timer runs for N times at a set interval, the whole computer screen picture of a monitored end is sent to a monitoring end, and the monitoring end carries out integral replacement covering on the original picture after receiving the picture, so that the monitoring strength of the computer screen of the monitored end can be further guaranteed, omission or disorder is avoided, and normal operation of a computer of the monitored end is further effectively guaranteed.

(4) According to the transmission method for remote data sharing, the consumption of a CPU and an internal memory of a monitored end can be effectively consumed and saved by sending the transmission mode of the screenshot of the designated area, the two modes can be freely switched according to the subjective intention and the receiving condition of an operator of the monitoring end, the real-time switching can be realized like a video telephone and a voice telephone, the omnibearing monitoring can be realized on the computer screen of the monitored end, the real-time monitoring effect is guaranteed, and the normal operation of an unmanned vending shop is further ensured.

Detailed Description

For a further understanding of the present invention, reference will be made to the detailed description of the invention.

In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the following examples.

Example 1

Because computer screen pictures are usually large, if the pictures need to occupy large bandwidth in real time, not only the transmission time is long, and the real-time monitoring effect is affected, but also the software program originally running at the monitored end is affected.

Specifically, a transmission method for remote data sharing according to this embodiment includes the following steps:

a, when computer software of a monitored end runs for the first time, the computer screen picture of the monitored end is integrally transmitted to a monitoring end, the monitoring end obtains a first complete computer screen picture of the monitored end, specifically, in the embodiment, remote software of the monitored end obtains picture data of the whole computer screen of the monitored end by using an interface of a computer operating system, then the complete computer screen picture when the computer screen is started for the first time is transmitted to the monitoring end and displayed on a screen of the monitoring end, the computer screen of the monitored end is conveniently monitored, specific problems can be mastered at the first time when problems occur, the problems are conveniently solved in time, and real-time monitoring can be achieved.

B, uniformly dividing the computer screen picture into n small rectangular blocks according to the horizontal coordinate and the vertical coordinate, and sequentially numbering the small rectangular blocks from the upper left to the lower right in sequence, wherein the number is 1,2,3.. N;

c, processing each small rectangular block as follows:

c1, numbering pixel points on each small rectangular block from the upper left to the lower right in sequence, wherein the pixel points are 0,1,2,3.. I, specifically, in the embodiment, the pixel is the minimum unit of a display image displayed by using a CRT (cathode ray tube) technology, and a picture can be seen to be composed of small blocks by amplifying the image, wherein each small block is one pixel point; each pixel is composed of RGB, and is composed of a fluorescent dot of three colors of red (R), green (G), and blue (B).

C2, calculating an integral value of a certain pixel primary color of each small rectangular block according to a formula, taking red R as an example, calculating the red R value of the pixel primary color of each small rectangular block by using the formula 0R (P0) + 1R (P1) + i R (Pi), and obtaining an integer Rn, wherein R (Pi) is the red R value of the pixel primary color in the ith pixel point position on the small rectangular block;

c3, correlating the obtained integer Rn with the position number of the small rectangular block, and obtaining an integer Rn corresponding to each small rectangular block;

d, storing n integer values Rn obtained by calculating n small rectangular blocks of the whole computer screen picture in an array arr to obtain an original array arr;

e, setting a certain interval time, repeating the steps B, C and D, judging whether an integer Rn obtained by calculating each small rectangular block of the computer screen picture at the moment is consistent with the Rn value of the small rectangular block with the corresponding number in the original array arr or not by the monitored end, if so, indicating that the screen picture of the monitored end is not changed, and not processing at the moment; if the integer Rn is inconsistent with the picture and the serial number of the small rectangular block corresponding to the integer Rn, the whole computer screen picture does not need to be transmitted to the monitoring end, and only the picture corresponding to the changed small rectangular block needs to be transmitted to the monitoring end, so that the bandwidth occupied in the transmission process is greatly reduced, the transmission speed is improved, the real-time monitoring is facilitated, and meanwhile, the influence on the program software which is originally operated by the monitoring end can be avoided.

Specifically, in this embodiment, a certain interval time is set as the timing start time of the timer, when the timer is started next time, the monitored terminal repeats steps B, C, and D to obtain a group of data sets arr, and compares the group of data sets arr with the values in the previous group of data sets arr one by one, and if the values in the data sets arr do not change at all, no processing is performed; and if one or more numerical values in the data group arr change, sending the changed data to the monitoring end, and sending the changed integer value Rn in the array and the pictures and the numbers of the corresponding small rectangular blocks to the monitoring end. Each time the timer is started, obtaining a new data set arr, and if the new data set arr is not changed from the value in the previous data set arr, the new data set arr does not need to be processed; if the data group arr changes, the value covered in the data group arr is replaced by the new data group arr, and when the timer is started again, the value covered by the new data group arr is compared with the value covered by the new data group arr, so that the data group arr and the picture are in a real-time updating state, and the purpose of real-time monitoring is achieved.

And F, when the monitoring end receives the data transmitted by the monitored end, replacing the picture of the small rectangular block sent by the monitored end with the picture of the small rectangular block with the corresponding number on the existing computer screen picture of the monitoring end, and ensuring real-time monitoring of the monitored end, so that the problem of the monitored end can be solved and processed more quickly and more quickly.

And G, because a certain probability exists, the pixels of a certain small rectangular block change, but the calculated integer Rn does not change, and the problem of insufficient monitoring caused under the condition is solved, when a timer runs for N times at a set interval, the whole computer screen picture of the monitored end is sent to the monitoring end, and the monitoring end receives the picture and then carries out integral replacement covering on the original picture, so that the monitoring strength of the computer screen of the monitored end can be further ensured, omission or disorder is avoided, and the normal operation of the computer of the monitored end is further effectively ensured.

Specifically, in this embodiment, while the whole computer screen image of the monitored terminal is sent to the monitoring terminal, the computer screen image of the monitored terminal is also subjected to block analysis, and after the steps B, C, and D are repeated, a corresponding group of data groups arr is obtained, and the group of data groups arr is replaced with a value covering the group of data groups arr, so that real-time comparison and real-time monitoring of the computer screen of the monitored terminal can be effectively ensured.

When the monitoring end only needs to check the screen of the appointed area of the monitored end (such as the area where some settlement software operates on a computer screen), the monitored end only needs to send the screenshot of the area, and the screenshot is much smaller than the screen picture of the whole computer of the monitored end, so the screenshot is not required to be divided into small blocks and can be directly sent to the monitoring end. At this time, it is necessary to switch the monitoring transmission mode to another transmission mode, wherein the another transmission mode includes the following operation steps:

s1, a monitoring end sends area coordinates (x 1, y1; x2, y 2) of a computer screen picture of a certain area needing to be transmitted to a monitored end, wherein (x 1, y 1) is the coordinates of the upper left corner of the area, and (x 2, y 2) is the coordinates of the lower right corner of the area;

s2, after receiving the area coordinate data (x 1, y1; x2, y 2) sent by the monitoring end, the monitored end starts to send the computer screen picture data of the area to the monitoring end at regular time;

and S3, the monitoring end receives the computer screen picture data of the area sent by the monitored end, displays the computer screen picture data on the monitoring screen of the monitoring end and always replaces the computer screen picture data covering the previous area.

Through the transmission mode, the consumption of a CPU and an internal memory of a monitored end can be effectively consumed and saved, the two modes can be freely switched according to the subjective will and the receiving condition of an operator of the monitored end, the switching can be realized in real time just like a video telephone and a voice telephone, the omnibearing monitoring can be realized on a computer screen of the monitored end, and the real-time monitoring effect is guaranteed simultaneously.

The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed to reflect the intent: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract) and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means can be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

Claims (7)

1. A transmission method for remote data sharing, characterized by: the method comprises the following steps:

a, when the monitored end computer software runs for the first time, integrally transmitting the screen picture of the monitored end computer to a monitoring end, and acquiring a first complete computer screen picture of the monitored end by the monitoring end;

b, uniformly dividing the computer screen picture into n small rectangular blocks according to the horizontal coordinate and the vertical coordinate, and numbering the small rectangular blocks from the upper left to the lower right in sequence, wherein the number is 1,2,3.. N;

c, processing each small rectangular block as follows:

c1, numbering pixel points on each small rectangular block from the upper left to the lower right in sequence, wherein the pixel points are numbered in a range of 0,1,2,3.. I;

c2, calculating an integral value of a certain pixel primary color of each small rectangular block according to a formula, taking red R as an example, the formula is 0R (P0) + 1R (P1) + i R (Pi), and obtaining an integer Rn, wherein R (Pi) is the red R value of the pixel primary color in the ith pixel point position;

c3, correlating the obtained integer Rn with the position number of the small rectangular block, and obtaining an integer Rn corresponding to each small rectangular block;

d, storing an integer value Rn obtained by calculating n small rectangular blocks of the whole computer screen picture in an array arr to obtain an original array arr;

e, setting a certain interval time, repeating the steps B, C and D, judging whether an integer Rn obtained by calculating each small rectangular block of the computer screen picture at the moment is consistent with the Rn value of the small rectangular block with the corresponding number in the original array arr by the monitored end, if so, indicating that the screen picture of the monitored end is not changed, and not processing at the moment; if the images are not consistent, the change of the screen images of the monitored end is indicated, data are sent to the monitoring end, and the changed integer value Rn in the array and the images and the serial numbers of the corresponding small rectangular blocks are sent to the monitoring end;

and F, when the monitoring end receives the data transmitted by the monitored end, replacing the picture of the small rectangular block with the corresponding number on the existing computer screen picture of the monitoring end with the picture of the small rectangular block transmitted by the monitored end.

2. A transmission method for remote data sharing according to claim 1, characterized in that: and G, setting N times of timer operation at intervals, sending the whole computer screen picture of the monitored end to the monitoring end, and carrying out integral replacement covering on the original picture after the monitoring end receives the picture.

3. A transmission method for remote data sharing according to claim 2, characterized in that: the remote software of the monitored end acquires the picture data of the whole computer screen by using the interface of the computer operating system.

4. A transmission method for remote data sharing according to claim 3, characterized in that: in the step E, a certain interval time is set as the timing starting time of the timer, when the timer is started next time, the monitored end repeats the steps B, C and D to obtain a group of data sets arr, the data sets arr are compared with the numerical values in the previous group of data sets arr one by one, and if the numerical values in the data sets arr do not change at all, no processing is carried out; if one or more numerical values in the data group arr change, the changed data are sent to the monitoring end, and the changed integer value Rn in the array and the pictures and the numbers of the small rectangular blocks corresponding to the integer value Rn are sent to the monitoring end.

5. A transmission method for remote data sharing according to claim 4, characterized in that: each time the timer is started, a new data set arr is obtained, and if the value of the new data set arr is not changed compared with the value of the last data set arr, no processing is needed; if the change occurs, the value in the data set arr covering the previous data set is replaced by the new data set arr, and when the timer is started again, the value in the new data set arr after replacing the covering is compared.

6. A transmission method for remote data sharing according to claim 5, characterized in that: and G, while sending the whole computer screen picture of the monitored end to the monitoring end, carrying out block analysis on the computer screen picture of the monitored end, repeating the steps B, C and D to obtain a corresponding group of data groups arr, and replacing the group of data groups arr with numerical values in the group of data groups arr.

7. A transmission method for remote data sharing according to any of claims 1-6, characterized in that: the method also comprises another transmission mode, wherein the other transmission mode comprises the following operation steps:

s1, the monitoring end sends the area coordinate (x) of the computer screen picture of a certain area needing to be transmitted to the monitored end ₁ ，y ₁ ；x ₂ ，y ₂ ) Wherein (x) ₁ ，y ₁ ) Is the upper left corner coordinate of the region, (x) ₂ ，y ₂ ) Is the lower right corner coordinate of the area;

s2, after receiving the area coordinate data sent by the monitoring end, the monitored end starts to send the computer screen picture data of the area to the monitoring end at regular time;

and S3, the monitoring end receives the computer screen picture data of the area sent by the monitored end, displays the computer screen picture data on the monitoring screen of the monitoring end and always replaces the computer screen picture data covering the previous area.