CN110471640B - Multi-screen interaction method and system - Google Patents

Multi-screen interaction method and system Download PDF

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Publication number
CN110471640B
CN110471640B CN201910729184.8A CN201910729184A CN110471640B CN 110471640 B CN110471640 B CN 110471640B CN 201910729184 A CN201910729184 A CN 201910729184A CN 110471640 B CN110471640 B CN 110471640B
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touch
machine
writing board
data packet
writing
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CN110471640A (en
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李君�
汤彬
郭家玮
张丽婵
曾冉冉
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Sct Digital Technology Co ltd
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Sct Digital Technology Co ltd
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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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
    • G09B5/14—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations with provision for individual teacher-student communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/048—Indexing scheme relating to G06F3/048
    • G06F2203/04803—Split screen, i.e. subdividing the display area or the window area into separate subareas

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Educational Technology (AREA)
  • Educational Administration (AREA)
  • Business, Economics & Management (AREA)
  • User Interface Of Digital Computer (AREA)
  • Drawing Aids And Blackboards (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

A multi-screen interaction method and a system thereof are provided, wherein the method comprises the following steps: judging whether the equipment ID of the writing board is identified or not; if yes, averagely dividing the display screen of the touch all-in-one machine into display areas with the same number according to the number of the identified equipment IDs of the writing boards; judging whether a data packet transmitted by the writing board is received or not; if yes, analyzing the data packets transmitted by the writing boards in sequence to obtain operation information of modules corresponding to the touch control integrated machine; and matching and executing the operation information in each display area according to the same sequence. The multi-screen interaction method and the multi-screen interaction system provided by the invention save the time for lecturers to walk with blackboard writing/commenting and the time for learners to walk with question/answer, increase the classroom interactivity and improve the teaching efficiency and the teaching quality.

Description

Multi-screen interaction method and system
Technical Field
The invention relates to the technical field of multimedia interaction, in particular to a multi-screen interaction method and a multi-screen interaction system.
Background
In the existing teaching field, with the progress of science and technology, the traditional blackboard teaching is gradually replaced by multimedia teaching, wherein the interactive whiteboard all-in-one machine is used as a basic teaching platform for education informatization, so that the problem of large-size display is effectively solved, the optimal writing effect is realized, and the interactive whiteboard all-in-one machine is particularly suitable for vast middle and primary schools in urban and rural areas with weak education information bases, improves the integrated level of regional education informatization and effectively promotes the development of education equilibrium.
The existing teaching equipment is set as follows: the interactive whiteboard all-in-one machine is arranged at a platform, a lecturer makes blackboard writing and demonstrates lecture contents on the interactive whiteboard all-in-one machine, and in the course of lecture/tour of the lecturer, the lecturer and a learner inevitably generate interaction, regardless of the blackboard writing demonstration/explanation comment of the lecturer and the question/answer of the learner need to be operated on the interactive whiteboard all-in-one machine arranged at the platform, so that the moving condition of the lecturer and the learner within a large distance in a classroom can be existed in the interaction process, the classroom time can be consumed, the lecture quality can be influenced, and the teaching efficiency can be reduced.
Disclosure of Invention
The invention aims to overcome the defects in the background technology and provide a multi-screen interaction method and a multi-screen interaction system, which save the time for a lecturer to walk to write on a blackboard or comment and the time for a learner to walk to ask questions or answer, increase the interactivity of a classroom and improve the teaching efficiency and the teaching quality.
In order to achieve the above purpose, the invention provides the following technical scheme:
a multi-screen interaction method comprises the following steps: judging whether the equipment ID of the writing board is identified or not; if yes, averagely dividing the display screen of the touch all-in-one machine into display areas with the same number according to the number of the identified equipment IDs of the writing board; judging whether a data packet transmitted by the writing board is received or not; if so, analyzing the data packets transmitted by the writing boards in sequence to obtain operation information of the modules corresponding to the touch control integrated machine; and executing the operation information in each display area in a one-to-one matching manner according to the same sequence.
Further, the step of determining whether the device ID of the tablet is recognized may further include: if not, prompting an error and stopping all subsequent steps.
Further, the step of determining whether the data packet transmitted from the tablet is received further includes: if not, stopping all subsequent steps.
Further, the step of determining whether the device ID of the tablet is recognized includes: the writing board is provided with a touch frame device, if the touch frame device collects operation information of a user, the device ID is sent to the touch all-in-one machine through a USB protocol or a wireless transmission protocol, and the touch all-in-one machine recognizes the device ID of the writing board.
Further, the step of determining whether the device ID of the tablet is recognized includes: the writing board sends the equipment ID to the touch all-in-one machine through a USB protocol or a wireless transmission protocol, and the touch all-in-one machine recognizes the equipment ID of the writing board.
Further, the step of determining whether the data packet transmitted from the tablet is received includes: the writing board is provided with a touch frame device, if the touch frame device collects operation information of a user, a data packet is formed and then sent to the touch all-in-one machine through a USB protocol or a wireless transmission protocol, and the touch all-in-one machine recognizes the data packet.
Further, the step of analyzing the operation information of the module corresponding to the touch control all-in-one machine comprises: the touch control all-in-one machine analyzes the data packet into point information corresponding to a display module of the touch control all-in-one machine through whiteboard application software, or the touch control all-in-one machine analyzes the data packet into function information corresponding to a function module of the touch control all-in-one machine through whiteboard application software.
A multi-screen interaction system comprises a touch all-in-one machine and a writing board, wherein the touch all-in-one machine is in wired connection or wireless connection with the writing board; wherein, touch-control all-in-one includes: the first judgment module is used for judging whether the equipment ID of the writing board is identified or not; the first processing module is used for averagely dividing the display screen of the touch all-in-one machine into display areas with the same number according to the number of the identified equipment IDs of the writing board; the second judgment module is used for judging whether a data packet transmitted by the writing board is received or not; the analysis module is used for analyzing the data packets transmitted by the writing boards in sequence to obtain operation information of the module corresponding to the touch control all-in-one machine; and the second processing module is used for executing the operation information in each display area in a one-to-one matching manner according to the same sequence. The writing board includes: the acquisition module is used for acquiring data information operated by a user on the writing board in real time to form the data packet; and the transmission module is used for transmitting the data packet to the touch control all-in-one machine.
Further, the display areas are arranged in a grid shape or sequentially arranged from left to right.
The invention has the beneficial effects that:
the invention provides a multi-screen interaction method and a multi-screen interaction system, wherein the interaction method comprises the following steps: s1, judging whether the equipment ID of the writing board is identified or not; s2, if yes, averagely dividing the display screen of the touch all-in-one machine into display areas with the same number according to the number of the identified equipment IDs of the writing boards; s3, judging whether a data packet transmitted by the writing board is received or not; s4, if so, analyzing the data packets transmitted by the writing boards in sequence to obtain operation information of the module corresponding to the touch control integrated machine; and S5, matching the operation information in each display area according to the same sequence. Therefore, when the integrated touch control machine is judged to be connected to the writing board, the display screen of the integrated touch control machine is divided into the display areas with the same number according to the number of the connected writing boards, and then the operation information data packets of the users on the writing boards are analyzed according to the sequence of the connected writing boards so as to sequentially display the writing contents on the writing boards in all the display areas of the integrated touch control machine, so that when the interactive intelligent teaching blackboard system is used, a lecturer can write on the integrated interactive machine, and a learner can write on any writing board closest to the integrated touch control machine to answer and ask questions, meanwhile, the writing contents on the writing boards can be transmitted to the integrated interactive machine and displayed in the display areas matched with the display screens one by one, the lecturer can explain the writing contents on the integrated touch control machine at the moment, the learner does not need to walk to a platform, and the content in different positions in the teaching room can be conveniently and clearly see the contents in the interactive process; in addition, if the lecturer needs to make annotations or written notes during the course patrol, the operation can be performed nearby on the writing board with the closest distance, and the operation is not limited to the interactive all-in-one machine only at the platform, so that the teaching efficiency is further improved. The multi-screen interaction method and the multi-screen interaction system provided by the invention save the time for lecturers to walk with blackboard writing/commenting and the time for learners to walk with question/answer, increase the classroom interactivity and improve the teaching efficiency and the teaching quality.
Drawings
FIG. 1 is a flowchart of a multi-screen interaction method according to a first embodiment of the present invention;
FIG. 2 is a block diagram of a multi-screen interactive system according to a second embodiment of the present invention;
fig. 3 is a diagram of an application simulation of a multi-screen interaction system according to a second embodiment of the present invention.
In the figure, 101-a first judgment module, 102-a first processing module, 103-a second judgment module, 104-an analysis module, 105-a second processing module, 201-an acquisition module, 202-a transmission module, 10-a touch control integrated machine, 11/12/13/14-a display area, and 21/22/23/24-a writing board
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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 first embodiment is as follows:
referring to fig. 1, fig. 1 is a flowchart of a multi-screen interaction method according to a first embodiment of the present invention.
The multi-screen interaction method provided by the invention is used in the fields of education and teaching and office meetings, and specifically referring to fig. 1, the multi-screen interaction method comprises the following steps: s1, judging whether the equipment ID of a writing board is identified by the touch control integrated machine; s2, if yes, the touch all-in-one machine averagely divides the display screen of the touch all-in-one machine into display areas with the same number according to the number of the identified equipment IDs of the writing boards; s3, judging whether a data packet transmitted by the writing board is received by the touch integrated machine; s4, if so, the touch integrated machine analyzes the data packets transmitted by the writing boards in sequence into operation information of modules corresponding to the touch integrated machine; and S5, the touch control integrated machine matches the operation information in each display area one by one according to the same sequence.
In the embodiment, S6, when the all-in-one touch control machine judges that the equipment ID of the writing board is not identified, an error is prompted and all the subsequent steps are stopped.
In the embodiment, S7, when the touch integrated machine judges that the data packet transmitted by the writing board is not received, all subsequent steps are stopped.
In this embodiment, the writing board may be a liquid crystal blackboard, a green board, a white board, or the like.
In this embodiment, preferably, the step of determining whether the device ID of the tablet is identified by the all-in-one touch control machine includes: the writing board is provided with a touch frame device, if the touch frame device collects operation information of a user, for example, the user writes on the writing board, the device ID of the user is sent to the touch all-in-one machine through a USB protocol or a wireless transmission protocol, the device ID of the writing board is identified by the touch all-in-one machine, and the touch all-in-one machine and the writing board are connected through a USB data line or are respectively provided with a wireless transmitter and a wireless receiver on the writing board and the touch all-in-one machine 10 to realize wireless connection.
In this embodiment, another implementation manner is that the step of determining whether the device ID of the tablet is recognized by the all-in-one touch control machine includes: the writing board sends the device ID to the touch all-in-one machine through a USB protocol or a wireless transmission protocol, the touch all-in-one machine identifies the device ID of the writing board, the difference between the mode and the mode is that the writing board sends the device ID to the touch all-in-one machine only if a user operates on the writing board on the basis of connection (wired/wireless) between the touch all-in-one machine and the writing board, the writing board can be identified by the touch all-in-one machine, the mode refers to that the writing board can be identified by the touch all-in-one machine only if connection (wired/wireless) is carried out between the touch all-in-one machine and the writing board, and the writing board can be identified by the touch all-in-one machine.
In this embodiment, the step of determining whether to receive the data packet transmitted from the tablet by the touch all-in-one machine includes: the writing board is provided with a touch frame device, if the touch frame device collects operation information of a user, a data packet is formed and then sent to the touch all-in-one machine through a USB protocol or a wireless transmission protocol, and the touch all-in-one machine recognizes the data packet.
In this embodiment, the step of parsing the data packet into operation information of a module corresponding to the touch all-in-one machine by the touch all-in-one machine includes: the touch control all-in-one machine analyzes the data packet into point information corresponding to a display module of the touch control all-in-one machine through white board application software (SCTiNote), or the touch control all-in-one machine also analyzes the data packet into function information corresponding to a function module of the touch control all-in-one machine through white board application software (SCTiNote).
Specifically, in this embodiment, the OPS computer of the touch all-in-one machine acquires and records the device IDs of the writing boards through the whiteboard application software (sctitote), divides the display screen into display areas with the same number according to the number of the device IDs of the writing boards, deduces which writing board the received data packet is acquired by according to the recorded device IDs, judges the acquisition sequence of a plurality of writing boards, such as a, B, C, and D, through the whiteboard application software (sctitote), identifies the first received data packet through the whiteboard application software (sctitote), analyzes the data packet into point information corresponding to the display module of the touch all-in-one machine, and draws the point information into a complete writing track through an algorithm and displays the point information in the first display area; when the touch all-in-one machine receives the second data packet, the data packet is analyzed into point information corresponding to a display module of the touch all-in-one machine, the point information is drawn into a complete writing track through an algorithm and is displayed in a second display area; when the touch all-in-one machine receives a third data packet, the data packet is analyzed into point information corresponding to a display module of the touch all-in-one machine, the point information is drawn into a complete writing track through an algorithm, and the writing track is displayed in a third display area; when the touch all-in-one machine receives the fourth data packet, the data packet is analyzed into point information corresponding to a display module of the touch all-in-one machine, the point information is drawn into a complete writing track through an algorithm and is displayed in a fourth display area; the same goes for setting more writing boards later.
Therefore, when the touch control integrated machine is judged to be connected to a writing board (the device ID of the writing board is identified), the display screen of the touch control integrated machine is divided into the display areas with the same number according to the number of the connected writing boards, and then the operation information data packet of the user on the writing board is analyzed according to the sequence of the connected writing boards so as to sequentially display the writing contents on the writing board in each display area of the touch control integrated machine, so that when the interactive intelligent teaching blackboard system is used, a lecturer can write on the interactive integrated machine, the learner can write on any writing board closest to the interactive integrated machine so as to do and ask questions, meanwhile, the writing contents on the writing board can be transmitted to the interactive integrated machine and displayed in the display areas matched with the display screen one by one, the lecturer can explain on the integrated machine at the moment without walking to a lecture platform, and learners at different positions in a teaching room can clearly see the contents in the interactive process; in addition, if the lecturer needs to make annotations or written notes during the course patrol, the operation can be performed nearby on the writing board with the closest distance, and the operation is not limited to the interactive all-in-one machine only at the platform, so that the teaching efficiency is further improved. The multi-screen interaction method and the multi-screen interaction system provided by the invention save the time for lecturers to walk with blackboard writing/commenting and the time for learners to walk with question/answer, increase the classroom interactivity and improve the teaching efficiency and the teaching quality.
Example two:
referring to fig. 2 and fig. 3, fig. 2 is a block diagram of a multi-screen interaction system according to a second embodiment of the present invention, and fig. 3 is a diagram of an analog application of the multi-screen interaction system according to the second embodiment of the present invention.
The embodiment provides a multi-screen interaction system, which includes an all-in-one touch control machine 10 and four writing boards, referring to fig. 3, the system includes a writing board 21, a writing board 22, a writing board 23, and a writing board 24, the all-in-one touch control machine 10 is in wired connection or wireless connection with each writing board, specifically, the all-in-one touch control machine 10 and each writing board may be connected through a USB data line, or a wireless transmitter and a wireless receiver are respectively arranged on the writing board and the all-in-one touch control machine 10 to achieve wireless connection;
wherein, touch control all-in-one 10 includes: the device comprises a first judgment module 101, a first processing module 102, a second judgment module 103, an analysis module 104 and a second processing module 105.
The first judging module 101 is configured to judge whether the all-in-one touch control machine 10 recognizes the device ID of the tablet.
The first processing module 102 is configured to averagely divide the display screen of the touch all-in-one machine 10 into the same number of display areas according to the number of the device IDs of the identified writing boards, and if the four writing boards are all connected to the touch all-in-one machine 10, the display screen is divided into four display areas, namely a display area 11, a display area 12, a display area 13, and a display area 14, and preferably, the four display areas are arranged in a grid shape and averagely divided by a horizontal dividing line and a vertical dividing line which are vertically crossed, and of course, the four display areas may also be arranged sequentially from left to right and averagely divided by three vertical dividing lines.
The second determining module 103 is configured to determine whether the all-in-one touch control machine 10 receives a data packet transmitted by the tablet.
And the analysis module 104 is configured to analyze the data packets transmitted by the writing boards in sequence by the all-in-one touch control machine 10 into operation information of the corresponding module.
The second processing module 105 is configured to match the operation information to each display area in the same order, that is, the display content of each display area matches the writing content of the writing board in sequence according to the order in which the writing board is operated.
Each writing board includes: an acquisition module 201 and a transmission module 202.
The acquisition module 201 is used for acquiring data information operated by a user on the tablet in real time to form a data packet.
And the transmission module 202 is configured to transmit the data packet to the touch all-in-one machine 10 by the tablet.
While the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. A multi-screen interaction method is characterized by comprising the following steps:
judging whether the equipment ID of the writing board is identified or not;
if so,
averagely dividing a display screen of the touch all-in-one machine into display areas with the same number according to the number of the identified equipment IDs of the writing boards;
judging whether a data packet transmitted by the writing board is received or not;
if so,
the data packet that each clipboard conveyed comes is analyzed in proper order, resolve into with the operation information of the touch control all-in-one module that corresponds, include: the touch all-in-one machine analyzes the data packet into point information corresponding to a display module of the touch all-in-one machine through whiteboard application software, and draws the point information into a complete writing track through an algorithm, or the touch all-in-one machine analyzes the data packet into function information corresponding to a function module of the touch all-in-one machine through the whiteboard application software;
and executing the operation information in each display area in a one-to-one matching manner according to the same sequence, and displaying the operation information in the display areas in the one-to-one matching manner on the display screen.
2. A multi-screen interaction method as recited in claim 1, wherein the determining whether the device ID of the tablet is recognized further comprises: if not, prompting an error and stopping all subsequent steps.
3. A multi-screen interaction method as recited in claim 1, wherein the determining whether the data packet transmitted from the tablet is received further comprises: if not, stopping all subsequent steps.
4. A multi-screen interaction method as recited in claim 1, wherein the determining whether the device ID of the tablet is recognized comprises:
the writing board is provided with a touch frame device, if the touch frame device collects operation information of a user, the device ID is sent to the touch all-in-one machine through a USB protocol or a wireless transmission protocol, and the touch all-in-one machine recognizes the device ID of the writing board.
5. A multi-screen interaction method as recited in claim 1, wherein the determining whether the device ID of the tablet is recognized includes:
the writing board sends the equipment ID to the touch all-in-one machine through a USB protocol or a wireless transmission protocol, and the touch all-in-one machine recognizes the equipment ID of the writing board.
6. A multi-screen interaction method as recited in claim 5, wherein the determining whether the data packet sent from the tablet is received comprises:
the writing board is provided with a touch frame device, if the touch frame device collects operation information of a user, a data packet is formed and then sent to the touch all-in-one machine through a USB protocol or a wireless transmission protocol, and the touch all-in-one machine recognizes the data packet.
7. A multi-screen interaction system is characterized by comprising a touch all-in-one machine and a writing board, wherein the touch all-in-one machine is in wired connection or wireless connection with the writing board; wherein, the touch control all-in-one machine includes:
the first judgment module is used for judging whether the equipment ID of the writing board is identified or not;
the first processing module is used for averagely dividing the display screen of the touch all-in-one machine into display areas with the same number according to the number of the identified device IDs of the writing boards;
the second judgment module is used for judging whether a data packet transmitted by the writing board is received or not;
the analysis module is used for analyzing the data packets transmitted by the writing boards in sequence to obtain operation information of the module corresponding to the touch control integrated machine, and comprises: the touch all-in-one machine analyzes the data packet into point information corresponding to a display module of the touch all-in-one machine through whiteboard application software, and draws the point information into a complete writing track through an algorithm, or the touch all-in-one machine analyzes the data packet into function information corresponding to a function module of the touch all-in-one machine through the whiteboard application software;
the second processing module is used for executing the operation information in each display area in a one-to-one matching mode according to the same sequence and displaying the operation information in the display areas matched with the display screen in the one-to-one matching mode;
the writing board includes:
the acquisition module is used for acquiring data information operated by a user on the writing board in real time to form the data packet;
and the transmission module is used for transmitting the data packet to the touch control all-in-one machine.
8. A multi-screen interaction system as recited in claim 7, wherein the display regions are arranged in a grid-like manner or sequentially from left to right.
CN201910729184.8A 2018-10-26 2019-08-08 Multi-screen interaction method and system Active CN110471640B (en)

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Application Number Priority Date Filing Date Title
CN201811258808 2018-10-26
CN2018112588084 2018-10-26

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CN110471640B true CN110471640B (en) 2023-03-31

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CN201811445648.4A Pending CN109597598A (en) 2018-10-26 2018-11-29 A kind of multi-screen command processing method and its system shielding blackboard comprehensively for intelligence
CN201811445647.XA Active CN109542008B (en) 2018-10-26 2018-11-29 Multi-screen display control method and system for intelligent full-screen blackboard
CN201821989276.7U Active CN209879763U (en) 2018-10-26 2018-11-29 Combined intelligent comprehensive screen blackboard
CN201811445493.4A Active CN109509375B (en) 2018-10-26 2018-11-29 Recording and broadcasting integrated intelligent comprehensive screen blackboard system and control method thereof
CN202110767647.7A Pending CN113504852A (en) 2018-10-26 2018-11-29 Control method of recording and broadcasting integrated intelligent comprehensive screen blackboard system
CN201811445514.2A Pending CN109377789A (en) 2018-10-26 2018-11-29 A kind of combined intelligent shields blackboard comprehensively
CN201910567550.4A Pending CN110362228A (en) 2018-10-26 2019-06-27 A kind of unlimited writing on the blackboard method and its system based on liquid crystal blackboard
CN201910567648.XA Active CN110473433B (en) 2018-10-26 2019-06-27 Intelligent storage multimedia teaching system and control method thereof
CN201910729184.8A Active CN110471640B (en) 2018-10-26 2019-08-08 Multi-screen interaction method and system
CN201921277524.XU Active CN210348836U (en) 2018-10-26 2019-08-08 Interactive intelligent teaching blackboard system

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CN201811445648.4A Pending CN109597598A (en) 2018-10-26 2018-11-29 A kind of multi-screen command processing method and its system shielding blackboard comprehensively for intelligence
CN201811445647.XA Active CN109542008B (en) 2018-10-26 2018-11-29 Multi-screen display control method and system for intelligent full-screen blackboard
CN201821989276.7U Active CN209879763U (en) 2018-10-26 2018-11-29 Combined intelligent comprehensive screen blackboard
CN201811445493.4A Active CN109509375B (en) 2018-10-26 2018-11-29 Recording and broadcasting integrated intelligent comprehensive screen blackboard system and control method thereof
CN202110767647.7A Pending CN113504852A (en) 2018-10-26 2018-11-29 Control method of recording and broadcasting integrated intelligent comprehensive screen blackboard system
CN201811445514.2A Pending CN109377789A (en) 2018-10-26 2018-11-29 A kind of combined intelligent shields blackboard comprehensively
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