CN112698799A - Document on-screen operation method and system - Google Patents
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/10—Text processing
- G06F40/12—Use of codes for handling textual entities
- G06F40/151—Transformation
Abstract
The invention provides a document on-screen operation method, which comprises the following steps: s100, a courseware synchronization method is opened through a Pad end, and S110 connection between the Pad end and a PC large-screen end is established; s120Pad end sends out opening instruction to PC large screen end; s130PC, converting the document into a picture group by the large screen end; s140PC, after the large screen end opens the document, sending a feedback command to the Pad end; s200, operating a synchronous method of courseware through the Pad end, and accessing the group of pictures by the Pad end according to the group of pictures address in S210; s220, detecting the contact with the Pad end, and sending an operation instruction to the large-screen end of the PC by the Pad end according to the contact; and S230PC, executing the operation after the large screen end receives the operation instruction. According to the document on-screen operation system provided by the invention, a teacher can realize on-screen operation of the Pad and the large-screen end of the PC through the on-screen operation system, and the teacher can operate the document on the large-screen end of the PC through the Pad and can upload the document in the Pad to the large-screen end of the PC for operation, so that the problem that the teacher needs to stand beside the large screen for operating the document is solved, and the flexibility of teaching of the teacher is improved.
Description
Technical Field
The invention relates to the technical field of electronic teaching, in particular to a method and a system for operating a document on the same screen.
Background
Along with the development and progress of society, the application of electronic teaching is more and more popular. In the prior art, most of the teacher in the market still operates on the basis of a PC large-screen terminal. Office software is installed on a large screen end of the PC, and the operation is performed after documents are opened. Such methods have the advantage of simple technical implementation, but also have some disadvantages: firstly, a teacher has to operate a document in front of a large-screen end of a PC, and the operation is not flexible enough; secondly, documents are operated based on functions of Office software, the Office software is complex in function, teachers can not use the complex functions in the actual operation process, and the problems that the operation and the use of teachers are inconvenient and not humanized are brought.
At present, partial technology of a document same-screen system is also available in the market, and a teacher can operate documents on a large-screen end of a PC through Pad; these prior art techniques, though, increase the flexibility of the teacher giving lessons; however, if the teaching resources are required to be displayed by the pad, the resources for the operation of the large screen end of the PC are usually obtained by downloading or screenshot, the bandwidth consumption is large, and the phenomenon of unstable information data transmission or delay caused by network signal interference is easy to occur.
Disclosure of Invention
The invention aims to provide a method and a system for operating a document on the same screen, a teacher can realize the operation of the same screen of a Pad and a PC large-screen end through the same-screen operating system, and the teacher can operate the document on the PC large-screen end through the Pad and can upload the document in the Pad to the PC large-screen end for operation, so that the limitation that the teacher must stand beside the large screen for operating the document is solved, and the flexibility of teaching of the teacher is increased; and the system adopts a humanized design for simplifying the operation of the teacher, only retains the functions commonly used by the teacher when playing courseware, such as opening, turning pages, zooming and rotating, doodling and the like, and is convenient for the teacher to use and complete teaching tasks. In addition, the system generates the courseware into the picture group through the large-screen end of the PC, the Pad can access the address of the picture group through the local area network without downloading or screenshot, the bandwidth is saved, stable and zero-delay information data transmission can be realized in the local area network, the user experience is further improved, and the popularization and the application are facilitated.
The above object of the invention is achieved by the features of the independent claims, the dependent claims developing the features of the independent claims in alternative or advantageous ways.
In order to achieve the above object, the present invention provides a method for operating a document on the same screen, comprising the steps of:
s100, a courseware opening synchronization method through a Pad end, which comprises the following specific steps:
s110, establishing connection between the Pad end and the PC large-screen end;
s120Pad end sends out opening instruction to PC large screen end;
s130PC, opening the document according to the document type by the large screen end, and converting the document into a picture group;
s140PC, after the large screen end opens the document, sending a feedback command to the Pad end; the feedback command includes a group of pictures address;
and
s200, a courseware synchronization method through Pad end operation, which comprises the following specific steps:
s210, the Pad end accesses the picture group according to the picture group address and displays the picture group to the Pad end;
s220, detecting contact with the Pad end, and sending a corresponding operation instruction to the PC large-screen end by the Pad end according to the contact;
and S230PC, executing corresponding operation after the large screen receives the operation instruction.
In a further embodiment, the step S110 establishes a connection between the Pad end and the PC large screen end, specifically:
and establishing the connection between the Pad end and the PC large-screen end through the local area network so as to carry out information interaction between the Pad end and the PC large-screen end.
In a further embodiment, the step S120Pad sends an open instruction to the PC large screen, specifically:
judging whether the large screen end of the PC has a corresponding local document to be opened,
if so, the Pad end directly sends out a JSON format opening instruction to the PC large screen end through Socket;
if not, the Pad end uploads the document to be opened to the large screen end of the PC through the Nginx file server erected at the large screen end of the PC, and then the Pad end sends an opening instruction in a JSON format through the socket.
In a further embodiment, the step S130 of converting the document into a group of pictures by the PC large screen terminal specifically includes:
judging the document type, wherein the document type at least comprises PPT, PDF, Word and Excel formats;
if the document is PPT, the PC large screen end opens the document through Office software or WPS software installed on the PC large screen end and converts each page of PPT into a picture for the Pad end to use;
if the document is Word or Excel, the PC large screen end opens the document through Office software or WPS software installed on the PC large screen end, and converts the document into PDF; then PDF is converted into a picture group for the use of the Pad end;
if the document is PDF, the PC large screen end directly converts the document into a picture group.
In a further embodiment, the Pad end in step S210 accesses the group of pictures through the group of pictures address, specifically:
the Pad end finds the picture group address through the Nginx file server and directly accesses the picture group through the picture group address.
In a further embodiment, the contact described in the foregoing step S220 includes and only includes a frequently-used operation contact of the teacher on the Pad-side group of pictures; the aforementioned common operational contacts include and only include page cuts, scaling, rotation, and graffiti of groups of pictures.
In a further embodiment, in the step S230, after receiving the operation instruction, the PC large screen executes a corresponding operation, specifically:
the type of the document is determined,
if the document is PPT, the PC large screen end executes the operation of the PPT through an operation interface provided by Office software or WPS software installed on the PC large screen end according to the received operation instruction;
if the document is Word or Excel or PDF, the PC large screen end executes the operation of the picture group converted by the document through GDI + drawing of the picture software according to the received operation instruction.
In a further embodiment, if the document is a PPT, the PC large-screen end executes the operation of the PPT through an operation interface provided by Office software or WPS software installed on the PC large-screen end according to the received operation instruction, and when the doodle operation is performed, the PC large-screen end performs drawing on a mask layer of the Office software or WPS software by receiving a point drawn by the Pad end in the picture software and performing corresponding coordinate conversion on the PC large-screen end.
In a further embodiment, after step S230, the method further includes:
and S240PC sending the execution result to the Pad end by the large screen end.
According to the improvement of the invention, the invention also provides a document on-screen operating system, which comprises a PC large-screen end, a PAD end and a local area network;
the PC large screen end is used for managing and operating various documents and converting document contents into a picture format; the PC large screen end is also provided with a local storage module and an Nginx file server;
the local storage module is used for storing documents and document conversion picture groups;
the PAD end is provided with an interface for user operation, and can upload documents to a PC large screen end through the Nginx file server and access a local storage module through the Nginx file server;
and the local area network is used for establishing network connection between the PC large screen end and the PAD end so as to realize information interaction between the PC large screen end and the PAD end.
Compared with the prior art, the technical proposal of the invention has the obvious beneficial effects that,
1) the PC large screen end converts courseware contents into a picture group, and the method can support various general courseware, and is wide in application range and high in universality.
2) The teacher can realize the same-screen operation of the Pad and the PC large-screen end through the same-screen operation system, the teacher can operate the document on the PC large-screen end through the Pad and can upload the document in the Pad to the PC large-screen end for operation, the problem that the teacher needs to stand beside the large screen to operate the document is solved, and the flexibility of teaching of the teacher is improved.
3) The system adopts a humanized design for simplifying the operation of the teacher, only retains the functions commonly used by the teacher when playing courseware, such as opening, turning pages, zooming and rotating, doodling and the like, and is convenient for the teacher to use and complete teaching tasks.
4) The system generates the courseware into the picture group through the large screen end of the PC, the Pad can access the address of the picture group through the local area network without downloading or screenshot, the bandwidth is saved, information data can be stably transmitted in the local area network with zero delay, the user experience is further improved, and the popularization and the application are facilitated.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the presently disclosed subject matter.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the page-end document opening operation flow of the document on-screen operation method according to the preferred embodiment of the present invention.
Fig. 2 is a flowchart illustrating a process of accessing a group of pictures by a pad end of the document on-screen operation method according to a preferred embodiment of the present invention.
FIG. 3 is a flowchart illustrating the document type conversion of the document on-screen operation method according to a preferred embodiment of the present invention.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
In order to achieve the above purpose, as shown in fig. 1 to fig. 3, the present invention provides a method for operating a document on the same screen, which is suitable for a teacher to implement the document on the same screen between a Pad end 2 and a PC large screen end 1 during teaching, and the teacher can operate the document on the PC large screen end 1 through the Pad end 2 and can also upload the document in the Pad end 2 to the PC large screen end 1 for operation.
In order to more clearly illustrate the method, a brief description is given of a document co-screen operating system, which includes a PC large screen terminal 1, a Pad terminal 2 and a local area network. The PC large screen terminal 1 is used for managing and operating various documents and converting document contents into picture formats. The PC large screen end 1 is also provided with a local storage module 1-1 and an Nginx file server 1-2. Nginx is a high-performance HTTP and reverse proxy web server, and has the advantages of simple installation, very concise configuration files and very few bugs. Of course, the PC large screen terminal 1 also has an input/output module. The input and output module is used for teachers to directly open documents and operate the documents at the large-screen end 1 of the PC during teaching. The local storage module 1-1 is used for storing documents and other format files (such as picture groups) converted from the documents. The Pad end 2 is provided with an interface, and the interface is used for user operation. The Pad end 2 can upload documents to the PC large screen end 1 through the Nginx file server 1-2, and can access the local storage module 1-1 through the Nginx file server 1-2. The local area network is used for establishing network connection between the PC large screen end 1 and the Pad end 2 so as to realize information interaction between the PC large screen end and the Pad end.
The preferred embodiment of the present invention provides a document on-screen operation method, which is based on the above-mentioned document on-screen operation system, and the method includes a synchronization method for opening courseware through Pad end 2 and a synchronization method for operating courseware through Pad end 2, wherein:
the method for synchronizing courseware opening through the Pad end 2 comprises the following specific steps:
step 1: and establishing connection between the Pad end 2 and the PC large-screen end 1 through the local area network to perform information interaction between the two.
Step 2: the Pad end 2 sends an opening instruction to the PC large screen end 1, and the method specifically comprises the following steps:
judging whether the large screen end 1 of the PC has a corresponding local document to be opened,
if so, the Pad end 2 directly sends an opening instruction in a JSON format to the PC large screen end 1 through a local area network (Socket communication).
If not, the Pad end 2 uploads the document to be opened to the PC large screen end 1 through the Nginx file server 1-2 erected on the PC large screen end 1, and the Pad end 2 sends an opening instruction in a JSON format through a local area network (Socket communication).
And step 3: the PC large screen terminal 1 opens a document according to the document type, converts the document into a picture group, and stores the picture group in the local storage module 1-1 for the Pad terminal 2 to use, specifically:
judging the document type, wherein the document type at least comprises PPT, PDF, Word and Excel formats,
if the document is PPT, the PC large screen terminal 1 opens the document through Office software or WPS software installed therein and converts each PPT page into a picture for the Pad terminal 2 to use.
If the document is Word or Excel, the PC large screen terminal 1 opens the document through Office software or WPS software installed therein, and converts the document into PDF; then PDF is converted into a picture group for the Pad end 2 to use;
if the document is PDF, the PC large screen end 1 directly converts the document into a picture group for the Pad end 2 to use.
And 4, step 4: after the PC large screen end 1 opens the document, a feedback command is sent to the Pad end 2. The feedback command includes a group of pictures address.
The method for synchronizing courseware operation through the Pad end 2 comprises the following specific steps:
step 1: the Pad end 2 finds the picture group address in the local storage module 1-1 through the Nginx file server 1-2, directly accesses the picture group through the picture group address, and then displays the picture group on the Pad end 2. Therefore, the Pad end 2 can access the picture group address through the local area network, downloading or screenshot is not needed, the bandwidth is saved, stable and zero-delay transmission of information data can be achieved in the local area network, the user experience is further improved, and popularization and application are facilitated.
Step 2: when the contact with the Pad end 2 is detected, the Pad end 2 sends a corresponding operation instruction to the PC large-screen end 1 according to the contact;
the contact comprises and only comprises the contact of a teacher with common operation on the Pad end 2 picture group; the aforementioned common operational contacts include and only include the teacher's paging, zooming, rotating, and doodling through the Pad end 2 group of pictures. Therefore, the method only keeps the common functions of the teacher when playing courseware, is simpler and more convenient compared with the traditional operation of large screen, and can greatly improve the teaching efficiency of the teacher.
And step 3: after receiving the operation instruction, the PC large screen terminal 1 executes a corresponding operation, specifically:
the type of the document is determined,
if the document is PPT, the PC large screen terminal 1 executes the operation of the PPT through an operation interface provided by Office software or WPS software installed on the PC large screen terminal according to the received operation instruction;
if the document is Word or Excel or PDF, the PC large screen end 1 executes the operation of the picture group converted by the document through GDI + drawing of the picture software according to the received operation instruction.
In some preferred embodiments, if the document is a PPT, the PC large-screen terminal 1 executes the operation of the PPT through an operation interface provided by Office software or WPS software installed therein according to the received operation instruction, and when the doodle operation is performed, the PC large-screen terminal 1 performs drawing on a mask layer of the Office software or WPS software by receiving a point drawn in the picture software by the Pad terminal 2 and performing corresponding coordinate conversion on the PC large-screen terminal 1.
And 4, step 4: the PC large screen end 1 sends an execution result to the Pad end 2.
According to the improvement of the invention, a document on-screen operating system is also provided, as shown in fig. 1 to 3, the system comprises a PC large-screen end 1, a Pad end 2 and a local area network. The PC large screen terminal 1 is used for managing and operating various documents and converting document contents into picture formats. The PC large screen end 1 is also provided with a local storage module 1-1 and an Nginx file server 1-2. Nginx is a high-performance HTTP and reverse proxy web server, and has the advantages of simple installation, very concise configuration files and very few bugs. Certainly, the PC large screen terminal 1 further has an input/output module; the input and output module is used for teachers to directly open documents and operate the documents at the large-screen end 1 of the PC during teaching. The local storage module 1-1 is used for storing documents and other format files (such as picture groups) converted from the documents. The Pad end 2 is provided with an interface (such as an interface of picture software), and the interface is used for user operation. The Pad end 2 can upload documents to the PC large screen end 1 through the Nginx file server 1-2, and can access the local storage module 1-1 through the Nginx file server 1-2. The local area network is used for establishing network connection between the PC large screen end 1 and the Pad end 2 so as to realize information interaction between the PC large screen end and the Pad end. The working principle of the document on-screen operation system is the same as that of the document on-screen operation method, and details are not repeated here.
Therefore, the invention adopts the PC large screen end to convert the courseware content into the picture group, and the method can support various general courseware, has wide application range and strong universality; the teacher can realize the same-screen operation of the Pad and the PC large-screen end through the same-screen operation system, the teacher can operate the document on the PC large-screen end through the Pad and can also upload the document in the Pad to the PC large-screen end for operation, the limitation that the teacher needs to stand beside the large screen for operating the document is solved, and the flexibility of teaching of the teacher is improved; the system adopts a humanized design for simplifying the operation of the teacher, only retains the functions commonly used by the teacher when playing courseware, such as opening, turning pages, zooming and rotating, doodling and the like, and is convenient for the teacher to use and complete teaching tasks. In addition, the system generates the courseware into the picture group through the large-screen end of the PC, the Pad can access the address of the picture group through the local area network without downloading or screenshot, the bandwidth is saved, stable and zero-delay information data transmission can be realized in the local area network, the user experience is further improved, and the popularization and the application are facilitated.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (10)
1. A document on-screen operation method is characterized by comprising the following steps:
s100, a courseware opening synchronization method through a Pad end, which comprises the following specific steps:
s110, establishing connection between the Pad end and the PC large-screen end;
s120Pad end sends out opening instruction to PC large screen end;
s130PC, opening the document according to the document type by the large screen end, and converting the document into a picture group;
s140PC, after the large screen end opens the document, sending a feedback command to the Pad end; the feedback command includes a group of pictures address;
and
s200, a courseware synchronization method through Pad end operation, which comprises the following specific steps:
s210, the Pad end accesses the picture group according to the picture group address and displays the picture group to the Pad end;
s220, detecting contact with the Pad end, and sending a corresponding operation instruction to the PC large-screen end by the Pad end according to the contact;
and S230PC, executing corresponding operation after the large screen receives the operation instruction.
2. The document on-screen operation method according to claim 1, wherein the step S110 establishes a connection between the Pad terminal and the PC large-screen terminal, specifically:
and establishing the connection between the Pad end and the PC large-screen end through the local area network so as to carry out information interaction between the Pad end and the PC large-screen end.
3. The document on-screen operation method according to claim 1, wherein the step S120Pad end sends an open instruction to the PC large screen end, specifically:
judging whether the large screen end of the PC has a corresponding local document to be opened,
if so, the Pad end directly sends out a JSON format opening instruction to the large screen end of the PC;
if not, the Pad end uploads the document to be opened to the large screen end of the PC through the Nginx file server erected at the large screen end of the PC, and then the Pad end sends an opening instruction in a JSON format to the large screen end of the PC.
4. The document on-screen operation method according to claim 1, wherein the PC large-screen end in the step S130 converts the document into a group of pictures, specifically:
judging the document type, wherein the document type at least comprises PPT, PDF, Word and Excel formats;
if the document is PPT, the PC large screen end opens the document through Office software or WPS software installed on the PC large screen end and converts each page of PPT into a picture for the Pad end to use;
if the document is Word or Excel, the PC large screen end opens the document through Office software or WPS software installed on the PC large screen end, and converts the document into PDF; then PDF is converted into a picture group for the use of the Pad end;
if the document is PDF, the PC large screen end directly converts the document into a picture group for the Pad end to use.
5. The document on-screen operation method according to claim 1,
the accessing, by the Pad side in the step S210, the group of pictures through the group of pictures address specifically includes:
the Pad end finds the picture group address through the Nginx file server and directly accesses the picture group through the picture group address.
6. The document on-screen operation method according to claim 1,
the contact in the foregoing step S220 includes and only includes the frequently-used operation contact of the teacher on the Pad end picture group; the aforementioned common operational contacts include page cuts, zooming, rotating, and graffiti of the group of pictures.
7. The document on-screen operation method according to claim 1 or 6,
in the foregoing step S230, after receiving the operation instruction, the PC large screen executes a corresponding operation, specifically:
the type of the document is determined,
if the document is PPT, the PC large screen end executes the operation of the PPT through an operation interface provided by Office software or WPS software installed on the PC large screen end according to the received operation instruction;
if the document is Word or Excel or PDF, the PC large screen end executes the operation of the picture group converted by the document through GDI + drawing of the picture software according to the received operation instruction.
8. The document on-screen operation method according to claim 7, wherein if the document is a PPT, the PC large-screen end executes the operation of the PPT through an operation interface provided by Office software or WPS software installed on the PC large-screen end according to the received operation instruction, and when the scrawling operation is performed, the PC large-screen end realizes drawing on a mask layer of Office software or WPS software by receiving a point drawn by a Pad end in picture software and performing corresponding coordinate conversion on the PC large-screen end.
9. The document on-screen operation method according to claim 7, wherein after step S230, the method further comprises:
and S240PC sending the execution result to the Pad end by the large screen end.
10. A document on-screen operating system is characterized by comprising a PC large-screen end, a PAD end and a local area network;
the PC large screen end is used for managing and operating various documents and converting document contents into a picture format; the PC large screen end is also provided with a local storage module and an Nginx file server;
the local storage module is used for storing documents and document conversion picture groups;
the PAD end is provided with an interface for user operation, and can upload documents to a PC large screen end through the Nginx file server and access a local storage module through the Nginx file server;
and the local area network is used for establishing network connection between the PC large screen end and the PAD end so as to realize information interaction between the PC large screen end and the PAD end.
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