CN110851097A - Handwriting data consistency control method, device, medium and electronic equipment - Google Patents
Handwriting data consistency control method, device, medium and electronic equipment Download PDFInfo
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- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
- G06F3/1462—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay with means for detecting differences between the image stored in the host and the images displayed on the remote displays
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Abstract
The invention provides a method, a device, a medium and electronic equipment for controlling handwriting data consistency, wherein the control method comprises the following steps: acquiring handwriting data of a second terminal carrying a target instruction of the second terminal according to a request for acquiring the handwriting data of the second terminal, wherein the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information and corresponding unique identification information; and sending the handwriting data of the second terminal to the first terminal so that the first terminal can execute corresponding operation according to the target instruction in the handwriting data of the second terminal. According to the method and the device, the target instruction of the second terminal carries the corresponding operator information and the corresponding unique identification information, whether the target instruction of the target operation exists or not can be determined, when the target instruction of the target operation does not exist, partial handwriting data are determined to be lost, and the lost data are supplemented back, so that the handwriting data of the interactive first terminal and the handwriting data of the interactive second terminal are ensured to be consistent finally.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a method, a device, a medium and electronic equipment for controlling handwriting data consistency.
Background
On-line education is one of the very fierce industries at present, and the whiteboard is a very important teaching link. The whiteboard is divided into a teacher end and a student end, the teacher end writes the blackboard writing, and the student end synchronizes the blackboard writing. In the interactive whiteboard, both teachers and students can write and operate handwriting, and handwriting data is transmitted to the other party through network transmission. In addition to writing on the board, the content of the board must be controlled during the interaction. The instructions capable of controlling the blackboard-writing are called control instructions, such as undoo and redo, the undoo instruction can withdraw the last stroke, and the redo can restore the last stroke. In the interactive whiteboard process, both interactive parties have handwriting data, and due to the delay of the network and the disorder in the handwriting data sending process, the problem of site inconsistency of the interactive parties is very likely to occur. However, the whiteboard system has an automatic packet complementing mechanism, and if the inconsistency problem is generated due to network delay and disorder, the data can be finally solved after being complemented.
Suppose a scenario, at this time, the teacher end has 5 data, the student end has 4 data, at this time, the 5 th data of the student end is not supplemented, at this time, the teacher end sends an undo execution, and at first, the teacher end locally executes an undo operation and clears the 5 th data of the teacher end. After the student end receives the undo instruction, the last pen needs to be cleared, and at the moment, the student end only has 4 instructions, so the student end clears the 4 th pen. After such an undo command, the sites of the teacher end and the student end are inconsistent.
Therefore, in long-term research and development, the inventor has made a lot of research on how to control the consistency of handwriting data at two ends of a whiteboard, and has proposed a method for controlling consistency of handwriting data to solve one of the above technical problems.
Disclosure of Invention
The present invention is directed to a method, an apparatus, a medium, and an electronic device for controlling handwriting data consistency, which can solve at least one of the above-mentioned technical problems. The specific scheme is as follows:
according to a specific implementation manner of the present invention, in a first aspect, the present invention provides a method for controlling handwriting data consistency, including:
receiving a request for acquiring handwriting data of a second terminal, which is sent by a first terminal;
acquiring handwriting data of the second terminal carrying a target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, wherein the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information and corresponding unique identification information;
sending the handwriting data of the second terminal to the first terminal so that the first terminal can execute corresponding operation according to a target instruction in the handwriting data of the second terminal;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
Optionally, after acquiring the handwriting data of the second terminal carrying the target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, the method further includes:
reading the type of a target instruction carried by a target instruction of the second terminal;
wherein the type of the target instruction at least comprises:
the target instruction type is a drawing line, the target instruction type is a drawing circle, the target instruction type is an operation of withdrawing a target, and the target instruction type is an operation of repeating the target.
Optionally, after the reading of the type of the target instruction carried by the target instruction of the second terminal, the method further includes:
judging whether a target instruction of target operation exists, if the type of the target instruction is the operation of target cancellation and the target instruction corresponding to the target cancellation does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the target instruction corresponding to the target cancellation to the first terminal so that the first terminal can execute the operation of target cancellation according to the target instruction;
and the target instruction corresponding to the target revocation carries corresponding operator information and corresponding unique identification information.
Optionally, after the reading of the type of the target instruction carried by the target instruction of the second terminal, the method further includes:
judging whether a target instruction of target operation exists, if the type of the target instruction is target repeated operation and the target instruction corresponding to the target repeated operation does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the target instruction corresponding to the target repeated operation to the first terminal so as to facilitate the first terminal to execute the target repeated operation according to the target instruction;
and the target instruction repeatedly corresponding to the target carries corresponding operator information and corresponding unique identification information.
Optionally, after the reading of the type of the target instruction carried by the target instruction of the second terminal, the method further includes:
judging whether a target instruction of target operation exists, if the target instruction type is a drawn line and the drawn target instruction does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the drawn target instruction to the first terminal so that the first terminal can execute the drawn line operation according to the target instruction;
and the line drawing target instruction carries corresponding operator information and corresponding unique identification information.
Optionally, after the reading of the type of the target instruction carried by the target instruction of the second terminal, the method further includes:
judging whether a target instruction of target operation exists, if the target instruction type is circle drawing and the target instruction of circle drawing does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the target instruction of circle drawing to the first terminal so that the first terminal can execute the operation of circle drawing according to the target instruction;
and the target instruction for drawing the circle carries corresponding operator information and corresponding unique identification information.
According to a second aspect of the present invention, there is provided a method for controlling handwriting data consistency, including:
the method comprises the steps that a first terminal sends a request for acquiring handwriting data of a second terminal to a server, so that the server can acquire the handwriting data of the second terminal carrying a target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, wherein the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information and corresponding unique identification information;
receiving handwriting data of the second terminal;
executing corresponding operation according to the target instruction in the handwriting data of the second terminal;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
Optionally, executing corresponding operations according to the target instruction in the handwriting data of the second terminal includes:
if the target instruction type is a line drawing, executing a line drawing operation according to the target instruction; alternatively, the first and second electrodes may be,
if the target instruction type is circle drawing, executing circle drawing operation according to the target instruction; alternatively, the first and second electrodes may be,
if the target instruction type is the operation of target revocation, executing the operation of target revocation according to the target instruction; alternatively, the first and second electrodes may be,
and if the target instruction type is the target repeated operation, executing the target repeated operation according to the target instruction. According to a third aspect of the present invention, there is provided a handwriting data matching control apparatus, including:
the first receiving unit is used for receiving a request for acquiring handwriting data of a second terminal, which is sent by a first terminal;
the acquisition unit is used for acquiring handwriting data of the second terminal carrying a target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal received by the first receiving unit, wherein the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information and corresponding unique identification information;
the first sending unit is used for sending the handwriting data of the second terminal acquired by the acquiring unit to the first terminal so that the first terminal can execute corresponding operation according to a target instruction in the handwriting data of the second terminal;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
According to a fourth aspect of the present invention, there is provided a handwriting data matching control apparatus, including:
the second sending unit is used for sending a request for acquiring handwriting data of the second terminal to the server by the first terminal so that the server can acquire the handwriting data of the second terminal carrying a target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, wherein the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information and corresponding unique identification information;
the second receiving unit is used for receiving handwriting data of the second terminal;
the execution unit is used for executing corresponding operation according to the target instruction in the handwriting data of the second terminal received by the second receiving unit;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
According to a fifth aspect, the invention provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements a method of controlling handwriting data consistency as described in any of the above.
According to a sixth aspect thereof, the present invention provides an electronic device, comprising: one or more processors; storage means for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement a method of controlling handwriting data consistency as described in any one of the above.
Compared with the prior art, the scheme of the embodiment of the invention at least has the following beneficial effects: the invention provides a method, a device, a medium and an electronic device for controlling handwriting data consistency, wherein the target instruction of the second terminal carries corresponding operator information and corresponding unique identification information, so that whether the target instruction of the target operation exists or not can be determined, when the target instruction of the target operation does not exist, part of handwriting data is determined to be lost, and the lost data is supplemented back, and therefore, the handwriting data of the interactive first terminal and the handwriting data of the second terminal are ensured to be consistent finally.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 illustrates an application scenario diagram of a processing method of error information according to an embodiment of the present disclosure;
FIG. 2 shows a flow chart of a control method for handwriting data consistency according to an embodiment of the invention;
FIG. 3 shows another flow chart of a control method for handwriting data consistency according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a control apparatus for handwriting data consistency according to an embodiment of the invention;
FIG. 5 is a schematic diagram of another structure of a handwriting data consistency control device according to an embodiment of the invention;
fig. 6 shows a schematic diagram of an electronic device connection structure according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, third, etc. may be used to describe … … in embodiments of the present invention, these … … should not be limited to these terms. These terms are used only to distinguish … …. For example, the first … … can also be referred to as the second … … and similarly the second … … can also be referred to as the first … … without departing from the scope of embodiments of the present invention.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in the article or device in which the element is included.
Alternative embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, an application scenario diagram of an embodiment of the present disclosure is shown, where a plurality of users (first terminals, student terminals) operate first clients installed on terminal devices such as mobile phones through the terminal devices, and the first clients perform data communication with a second terminal (a teacher terminal, for example, a PC computer of a teacher) through a background server.
As shown in fig. 2, according to a specific embodiment of the present disclosure, in a first aspect, the present disclosure provides a method for controlling trace data consistency, which is applied to a server, and specifically includes the following method steps:
s202: and receiving a request for acquiring handwriting data of a second terminal, which is sent by a first terminal.
In this step, a request sent by the first terminal to obtain different handwriting data of the second terminal may be received, for example, a request sent by the first terminal to obtain drawing script data of the second terminal is received, for example, a request sent by the first terminal to obtain undo target data of the second terminal is received, and furthermore, a request sent by the first terminal to obtain repetitive target data of the first terminal is received, which lists only common requests, and does not specifically limit the content of the requests. S204: and acquiring the handwriting data of the second terminal carrying the target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, wherein the target instruction of the second terminal carries the corresponding target instruction type, the corresponding operator information and the corresponding unique identification information.
The target instruction of the second terminal not only carries the corresponding target instruction type, but also carries the corresponding operator information and the corresponding unique identification information, so that the target data to be operated can be accurately locked.
In practical application, the target data to be operated can be accurately determined according to the fact that the target instruction of the second terminal carries the corresponding target instruction type, the corresponding operator information and the corresponding unique identification information.
The method for controlling the handwriting data consistency provided by the embodiment of the invention starts from a handwriting transmission protocol.
First, each instruction is provided with an operator and a seq _ id, the operator is the operator of the instruction, and the seq id is the unique identifier of the instruction.
As above are fields on the key strip of all instructions, action represents the type of instruction, such as draw line, draw circle, undo, redo, seq _ id is the only indication for the instruction, and operator is the operator of the instruction. When designing a control command, such as an undo command, the protocol is as follows:
the undo is followed by the operator and seq _ id of the object to be undo. Therefore, after the recipient of the undo instruction receives the undo instruction, the latest one received by the recipient of the undo instruction can not be simply cancelled, but the instruction data in the undo instruction protocol can be cancelled. If the target instruction of the target revocation does not exist currently, the lost packet is complemented back through the packet complementing strategy of the white board, and finally displayed effects of the two interactive parties are consistent.
S206: sending the handwriting data of the second terminal to the first terminal so that the first terminal can execute corresponding operation according to a target instruction in the handwriting data of the second terminal;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
In this step, the first terminal executing corresponding operations according to the target instruction in the handwriting data of the second terminal includes:
if the target instruction type is a line drawing, executing a line drawing operation according to the target instruction; alternatively, the first and second electrodes may be,
if the target instruction type is circle drawing, executing circle drawing operation according to the target instruction; alternatively, the first and second electrodes may be,
if the target instruction type is the operation of target revocation, executing the operation of target revocation according to the target instruction; alternatively, the first and second electrodes may be,
and if the target instruction type is the target repeated operation, executing the target repeated operation according to the target instruction.
It should be noted that, compared with the existing video teaching interaction method, the control method for handwriting data consistency provided by the embodiment of the invention can not only save the traffic of the mobile terminal, but also reduce the overhead of the memory of the server, so that the student terminal at the first terminal can intuitively sense the fluency of the handwriting, and the video pause phenomenon which may occur in video teaching interaction is avoided, thereby improving the user experience of the student terminal at the first terminal.
In a specific application scene, a plurality of first terminals (student terminals) can simultaneously and synchronously listen to courses of the same second terminal (a PC (personal computer) terminal of a teacher terminal), and the phenomenon of pause can not occur.
Optionally, after acquiring the handwriting data of the second terminal carrying the target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, the method further includes:
reading the type of a target instruction carried by a target instruction of a second terminal;
wherein the types of the target instruction at least comprise:
the target instruction type is a drawing line, the target instruction type is a drawing circle, the target instruction type is an operation cancelled by a target, and the target instruction type is an operation repeated by the target.
Optionally, after reading the type of the target instruction carried by the target instruction of the second terminal, the method further includes:
judging whether a target instruction of target operation exists, if the type of the target instruction is the operation of target cancellation and the target instruction corresponding to the target cancellation does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the target instruction corresponding to the target cancellation to a first terminal so that the first terminal can execute the operation of the target cancellation according to the target instruction;
and the target instruction corresponding to the target revocation carries corresponding operator information and corresponding unique identification information.
Optionally, after reading the type of the target instruction carried by the target instruction of the second terminal, the method further includes:
judging whether a target instruction of target operation exists, if the type of the target instruction is target repeated operation and the target instruction corresponding to the target repeated operation does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the target instruction corresponding to the target repeated operation to a first terminal so that the first terminal can execute the target repeated operation according to the target instruction;
and the target instruction repeatedly corresponding to the target carries corresponding operator information and corresponding unique identification information.
Optionally, after reading the type of the target instruction carried by the target instruction of the second terminal, the method further includes:
judging whether a target instruction of target operation exists, if the type of the target instruction is a drawn line and the drawn target instruction does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the drawn target instruction to a first terminal so that the first terminal can execute the drawn line operation according to the target instruction;
the target instruction of the line drawing carries corresponding operator information and corresponding unique identification information.
Optionally, after reading the type of the target instruction carried by the target instruction of the second terminal, the method further includes:
judging whether a target instruction of target operation exists, if the target instruction type is circle drawing and the target instruction of circle drawing does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the target instruction of circle drawing to the first terminal so that the first terminal can execute the operation of circle drawing according to the target instruction;
the circle drawing target instruction carries corresponding operator information and corresponding unique identification information.
The invention provides a method for controlling the consistency of handwriting data, which can determine whether the target instruction of the target operation exists or not by the target instruction of the second terminal carrying the corresponding operator information and the corresponding unique identification information, and determine that part of the handwriting data is lost and supplement the lost data when the target instruction of the target operation does not exist, thereby ensuring that the handwriting data of the interactive first terminal and the interactive second terminal are consistent finally.
Example 2
As shown in fig. 1, an application scenario diagram of an embodiment of the present disclosure is shown, where a plurality of users (first terminals, student terminals) operate first clients installed on terminal devices such as mobile phones through the terminal devices, and the first clients perform data communication with a second terminal (a teacher terminal, for example, a PC computer of a teacher) through a background server.
As shown in fig. 3, according to an embodiment of the present disclosure, in a first aspect, the present disclosure provides a method for controlling trace data consistency, which is applied to a first terminal, and specifically includes the following steps:
s302: the method comprises the steps that a first terminal sends a request for acquiring handwriting data of a second terminal to a server, so that the server can acquire the handwriting data of the second terminal carrying a target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, wherein the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information and corresponding unique identification information;
s304: receiving handwriting data of a second terminal;
s306: executing corresponding operation according to a target instruction in the handwriting data of the second terminal;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
Optionally, executing corresponding operations according to the target instruction in the handwriting data of the second terminal includes:
if the target instruction type is a line drawing, executing a line drawing operation according to the target instruction; alternatively, the first and second electrodes may be,
if the target instruction type is circle drawing, executing circle drawing operation according to the target instruction; alternatively, the first and second electrodes may be,
if the target instruction type is the operation of target revocation, executing the operation of target revocation according to the target instruction; alternatively, the first and second electrodes may be,
and if the target instruction type is the target repeated operation, executing the target repeated operation according to the target instruction.
The invention provides a method for controlling the consistency of handwriting data, which can determine whether the target instruction of the target operation exists or not by the target instruction of the second terminal carrying the corresponding operator information and the corresponding unique identification information, and determine that part of the handwriting data is lost and supplement the lost data when the target instruction of the target operation does not exist, thereby ensuring that the handwriting data of the interactive first terminal and the interactive second terminal are consistent finally.
Example 3
As shown in fig. 1, an application scenario diagram according to an embodiment of the present invention is shown, where a plurality of users (first terminals, student terminals) operate first clients installed on terminal devices such as mobile phones, and the first clients perform data communication with a second terminal (a teacher terminal, for example, a PC computer of a teacher) through a background server. The embodiment is similar to embodiment 1 in the explanation of the method steps for implementing the method steps as described in embodiment 1 based on the same names and meanings, and has the same technical effects as embodiment 1, and thus the description thereof is omitted.
Referring to fig. 4, according to a third aspect of the present invention, the present invention provides a device for controlling trace data consistency, which specifically includes a first receiving unit 402, an obtaining unit 404, and a first sending unit 406, and specifically includes the following:
a first receiving unit 402, configured to receive a request for acquiring handwriting data of a second terminal sent by a first terminal;
an obtaining unit 404, configured to obtain, according to the request for obtaining handwriting data of the second terminal received by the first receiving unit 402, handwriting data of the second terminal carrying a target instruction of the second terminal, where the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information, and corresponding unique identification information;
a first sending unit 406, configured to send the handwriting data of the second terminal acquired by the acquiring unit 404 to the first terminal, so that the first terminal executes a corresponding operation according to a target instruction in the handwriting data of the second terminal;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
Optionally, the apparatus further comprises:
a reading unit (not shown in fig. 4), configured to, after the obtaining unit 404 obtains, according to the request for obtaining the handwriting data of the second terminal, the handwriting data of the second terminal carrying the target instruction of the second terminal, read the type of the target instruction carried by the target instruction of the second terminal;
the type of the target instruction read by the reading unit at least includes:
the target instruction type is a drawing line, the target instruction type is a drawing circle, the target instruction type is an operation cancelled by a target, and the target instruction type is an operation repeated by the target.
Optionally, the apparatus further comprises:
the processing unit (not shown in fig. 4) is configured to, after the reading unit reads the type of the target instruction carried by the target instruction of the second terminal, determine whether the target instruction of the target operation exists, obtain, if the type of the target instruction is the operation of target revocation and the target instruction corresponding to the target revocation does not exist, the lost handwriting data through a preset packet complementing policy, and obtain complete handwriting data of the second terminal according to the lost handwriting data; and the target instruction corresponding to the target revocation carries corresponding operator information and corresponding unique identification information.
The first sending unit 406 is further configured to: sending complete handwriting data of the second terminal carrying a target instruction corresponding to the target revocation to the first terminal so that the first terminal can execute the target revocation operation according to the target instruction; and the target instruction corresponding to the target revocation carries corresponding operator information and corresponding unique identification information.
Optionally, the processing unit is further configured to:
after the reading unit reads the type of the target instruction carried by the target instruction of the second terminal, whether the target instruction of the target operation exists or not is judged, if the type of the target instruction is the repeated operation of the target and the target instruction corresponding to the repeated operation of the target does not exist, the lost handwriting data is obtained through a preset packet supplementing strategy, and the complete handwriting data of the second terminal is obtained according to the lost handwriting data; and the target instruction repeatedly corresponding to the target carries corresponding operator information and corresponding unique identification information.
The first sending unit 406 is further configured to:
sending complete handwriting data of the second terminal carrying a target instruction corresponding to the target repetition to the first terminal so that the first terminal can execute the target repetition operation according to the target instruction; and the target instruction repeatedly corresponding to the target carries corresponding operator information and corresponding unique identification information.
Optionally, the processing unit is further configured to:
after the reading unit reads the type of a target instruction carried by a target instruction of the second terminal, whether the target instruction of target operation exists or not is judged, if the type of the target instruction is a drawn line and the drawn target instruction does not exist, the lost handwriting data is obtained through a preset packet supplementing strategy, and the complete handwriting data of the second terminal is obtained according to the lost handwriting data; the target instruction of the line drawing carries corresponding operator information and corresponding unique identification information.
The first sending unit 406 is further configured to:
sending complete handwriting data of the second terminal carrying the target instruction for drawing the line to the first terminal so that the first terminal can execute the operation for drawing the line according to the target instruction; the target instruction of the line drawing carries corresponding operator information and corresponding unique identification information.
Optionally, the processing unit is further configured to:
after the reading unit reads the type of a target instruction carried by a target instruction of the second terminal, judging whether the target instruction of target operation exists or not, if the type of the target instruction is circle drawing and the target instruction for circle drawing does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, and obtaining complete handwriting data of the second terminal according to the lost handwriting data; the circle drawing target instruction carries corresponding operator information and corresponding unique identification information.
The first sending unit 406 is further configured to:
sending complete handwriting data of the second terminal carrying a target instruction for drawing a circle to the first terminal so that the first terminal can execute the operation for drawing the circle according to the target instruction; the circle drawing target instruction carries corresponding operator information and corresponding unique identification information.
The invention provides the control device for the consistency of the handwriting data, the target instruction of the second terminal carries the corresponding operator information and the corresponding unique identification information, whether the target instruction of the target operation exists or not can be determined, when the target instruction of the target operation does not exist, the fact that part of the handwriting data is lost is determined, and the lost data is supplemented back, so that the consistency of the handwriting data of the interactive first terminal and the interactive second terminal is ensured finally.
Example 4
As shown in fig. 1, an application scenario diagram according to an embodiment of the present invention is shown, where a plurality of users (first terminals, student terminals) operate first clients installed on terminal devices such as mobile phones, and the first clients perform data communication with a second terminal (a teacher terminal, for example, a PC computer of a teacher) through a background server. The embodiment is similar to the embodiment 2 in the explanation of the embodiment 2 based on the same name and meaning, and has the same technical effect as the embodiment 2, and the method of the embodiment 2 is used for implementing the method steps as described in the embodiment 2, and is not described herein again.
Referring to fig. 5, according to a fourth aspect of the embodiment of the present invention, the present invention provides a device for controlling trace data consistency, which specifically includes a second sending unit 502, a second receiving unit 504, and an executing unit 506, and specifically includes the following steps:
a second sending unit 502, configured to send, by the first terminal, a request for obtaining handwriting data of the second terminal to the server, so that the server obtains, according to the request for obtaining the handwriting data of the second terminal, handwriting data of the second terminal carrying a target instruction of the second terminal, where the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information, and corresponding unique identification information;
a second receiving unit 504, configured to receive handwriting data of a second terminal;
an executing unit 506, configured to execute a corresponding operation according to a target instruction in the handwriting data of the second terminal received by the second receiving unit 504;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
Optionally, the execution unit 506 is specifically configured to:
if the target instruction type is a line drawing, executing a line drawing operation according to the target instruction; alternatively, the first and second electrodes may be,
if the target instruction type is circle drawing, executing circle drawing operation according to the target instruction; alternatively, the first and second electrodes may be,
if the target instruction type is the operation of target revocation, executing the operation of target revocation according to the target instruction; alternatively, the first and second electrodes may be,
and if the target instruction type is the target repeated operation, executing the target repeated operation according to the target instruction.
The invention provides the control device for the consistency of the handwriting data, the target instruction of the second terminal carries the corresponding operator information and the corresponding unique identification information, whether the target instruction of the target operation exists or not can be determined, when the target instruction of the target operation does not exist, the fact that part of the handwriting data is lost is determined, and the lost data is supplemented back, so that the consistency of the handwriting data of the interactive first terminal and the interactive second terminal is ensured finally.
Example 5
As shown in fig. 6, the present embodiment provides an electronic device for a method of controlling handwriting data consistency, the electronic device including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the one processor to cause the at least one processor to: the target instruction of the second terminal carries the corresponding operator information and the corresponding unique identification information, whether the target instruction of the target operation exists or not can be determined, when the target instruction of the target operation does not exist, partial handwriting data are determined to be lost, and the lost data are supplemented back, so that the handwriting data of the interactive first terminal and the handwriting data of the interactive second terminal are finally consistent.
Example 6
The embodiment of the disclosure provides a nonvolatile computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions can execute the control method for handwriting data consistency in any method embodiment.
Example 7
Referring now to FIG. 6, shown is a schematic diagram of an electronic device suitable for use in implementing embodiments of the present disclosure. The terminal device in the embodiments of the present disclosure may include, but is not limited to, a mobile terminal such as a mobile phone, a notebook computer, a digital broadcast receiver, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a vehicle terminal (e.g., a car navigation terminal), and the like, and a stationary terminal such as a digital TV, a desktop computer, and the like. The electronic device shown in fig. 6 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present disclosure.
As shown in fig. 6, the electronic device may include a processing means (e.g., a central processing unit, a graphics processor, etc.) 601, which may perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM)602 or a program loaded from a storage means 608 into a Random Access Memory (RAM) 603. In the RAM 603, various programs and data necessary for the operation of the electronic apparatus are also stored. The processing device 601, the ROM 602, and the RAM 603 are connected to each other via a bus 604. An input/output (I/O) interface 605 is also connected to bus 604.
Generally, the following devices may be connected to the I/O interface 605: input devices 606 including, for example, a touch screen, touch pad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; output devices 607 including, for example, a Liquid Crystal Display (LCD), a speaker, a vibrator, and the like; storage 608 including, for example, tape, hard disk, etc.; and a communication device 609. The communication means 609 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. While fig. 6 illustrates an electronic device having various means, it is to be understood that not all illustrated means are required to be implemented or provided. More or fewer devices may alternatively be implemented or provided.
In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication means 609, or may be installed from the storage means 608, or may be installed from the ROM 602. The computer program, when executed by the processing device 601, performs the above-described functions defined in the methods of the embodiments of the present disclosure.
It should be noted that the computer readable medium in the present disclosure can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer readable signal medium may comprise a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.
The computer readable medium may be embodied in the electronic device; or may exist separately without being assembled into the electronic device.
The computer readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to: the target instruction of the second terminal carries the corresponding operator information and the corresponding unique identification information, whether the target instruction of the target operation exists or not can be determined, when the target instruction of the target operation does not exist, partial handwriting data are determined to be lost, and the lost data are supplemented back, so that the handwriting data of the interactive first terminal and the handwriting data of the interactive second terminal are finally consistent.
Alternatively, the computer readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to: the target instruction of the second terminal carries the corresponding operator information and the corresponding unique identification information, whether the target instruction of the target operation exists or not can be determined, when the target instruction of the target operation does not exist, partial handwriting data are determined to be lost, and the lost data are supplemented back, so that the handwriting data of the interactive first terminal and the handwriting data of the interactive second terminal are finally consistent.
Computer program code for carrying out operations for aspects of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present disclosure may be implemented by software or hardware. Where the name of an element does not in some cases constitute a limitation on the element itself.
Claims (12)
1. A method for controlling handwriting data consistency is characterized by comprising the following steps:
receiving a request for acquiring handwriting data of a second terminal, which is sent by a first terminal;
acquiring handwriting data of the second terminal carrying a target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, wherein the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information and corresponding unique identification information;
sending the handwriting data of the second terminal to the first terminal so that the first terminal can execute corresponding operation according to a target instruction in the handwriting data of the second terminal;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
2. The method according to claim 1, wherein after the acquiring of the handwriting data of the second terminal carrying the target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, the method further comprises:
reading the type of a target instruction carried by a target instruction of the second terminal;
wherein the type of the target instruction at least comprises:
the target instruction type is a drawing line, the target instruction type is a drawing circle, the target instruction type is an operation of withdrawing a target, and the target instruction type is an operation of repeating the target.
3. The method according to claim 2, wherein after the reading of the type of the target instruction carried by the target instruction of the second terminal, the method further comprises:
judging whether a target instruction of target operation exists, if the type of the target instruction is the operation of target cancellation and the target instruction corresponding to the target cancellation does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the target instruction corresponding to the target cancellation to the first terminal so that the first terminal can execute the operation of target cancellation according to the target instruction;
and the target instruction corresponding to the target revocation carries corresponding operator information and corresponding unique identification information.
4. The method according to claim 2, wherein after the reading of the type of the target instruction carried by the target instruction of the second terminal, the method further comprises:
judging whether a target instruction of target operation exists, if the type of the target instruction is target repeated operation and the target instruction corresponding to the target repeated operation does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the target instruction corresponding to the target repeated operation to the first terminal so as to facilitate the first terminal to execute the target repeated operation according to the target instruction;
and the target instruction repeatedly corresponding to the target carries corresponding operator information and corresponding unique identification information.
5. The method according to claim 2, wherein after the reading of the type of the target instruction carried by the target instruction of the second terminal, the method further comprises:
judging whether a target instruction of target operation exists, if the target instruction type is a drawn line and the drawn target instruction does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the drawn target instruction to the first terminal so that the first terminal can execute the drawn line operation according to the target instruction;
and the line drawing target instruction carries corresponding operator information and corresponding unique identification information.
6. The method according to claim 2, wherein after the reading of the type of the target instruction carried by the target instruction of the second terminal, the method further comprises:
judging whether a target instruction of target operation exists, if the target instruction type is circle drawing and the target instruction of circle drawing does not exist, obtaining lost handwriting data through a preset packet supplementing strategy, obtaining complete handwriting data of a second terminal according to the lost handwriting data, and sending the complete handwriting data of the second terminal carrying the target instruction of circle drawing to the first terminal so that the first terminal can execute the operation of circle drawing according to the target instruction;
and the target instruction for drawing the circle carries corresponding operator information and corresponding unique identification information.
7. A method for controlling handwriting data consistency is characterized by comprising the following steps:
the method comprises the steps that a first terminal sends a request for acquiring handwriting data of a second terminal to a server, so that the server can acquire the handwriting data of the second terminal carrying a target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, wherein the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information and corresponding unique identification information;
receiving handwriting data of the second terminal;
executing corresponding operation according to the target instruction in the handwriting data of the second terminal;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
8. The method of claim 7, wherein performing corresponding operations according to the target instructions in the handwriting data of the second terminal comprises:
if the target instruction type is a line drawing, executing a line drawing operation according to the target instruction; alternatively, the first and second electrodes may be,
if the target instruction type is circle drawing, executing circle drawing operation according to the target instruction; alternatively, the first and second electrodes may be,
if the target instruction type is the operation of target revocation, executing the operation of target revocation according to the target instruction; alternatively, the first and second electrodes may be,
and if the target instruction type is the target repeated operation, executing the target repeated operation according to the target instruction.
9. A handwriting data consistency control device is characterized by comprising:
the first receiving unit is used for receiving a request for acquiring handwriting data of a second terminal, which is sent by a first terminal;
the acquisition unit is used for acquiring handwriting data of the second terminal carrying a target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal received by the first receiving unit, wherein the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information and corresponding unique identification information;
the first sending unit is used for sending the handwriting data of the second terminal acquired by the acquiring unit to the first terminal so that the first terminal can execute corresponding operation according to a target instruction in the handwriting data of the second terminal;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
10. A handwriting data consistency control device is characterized by comprising:
the second sending unit is used for sending a request for acquiring handwriting data of the second terminal to the server by the first terminal so that the server can acquire the handwriting data of the second terminal carrying a target instruction of the second terminal according to the request for acquiring the handwriting data of the second terminal, wherein the target instruction of the second terminal carries a corresponding target instruction type, corresponding operator information and corresponding unique identification information;
the second receiving unit is used for receiving handwriting data of the second terminal;
the execution unit is used for executing corresponding operation according to the target instruction in the handwriting data of the second terminal received by the second receiving unit;
the first terminal is a student terminal, and the second terminal is a teacher terminal.
11. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 1 to 8.
12. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to carry out the method of any one of claims 1 to 8.
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