CN104468714B - A kind of method that distance teaching is realized by service end and client interaction - Google Patents
A kind of method that distance teaching is realized by service end and client interaction Download PDFInfo
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- CN104468714B CN104468714B CN201410608072.4A CN201410608072A CN104468714B CN 104468714 B CN104468714 B CN 104468714B CN 201410608072 A CN201410608072 A CN 201410608072A CN 104468714 B CN104468714 B CN 104468714B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/131—Protocols for games, networked simulations or virtual reality
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- 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
Abstract
The present invention provides a kind of method for realizing distance teaching by service end and client interaction, and methods described need to provide data transmission module, background transmission module, paintbrush interactive module and delete interactive module；Methods described is：Data cube computation is carried out to service end and client by data transmission module, and realizes the data transfer between service end and client；The background of service end is sent to student side or teacher side by background delivery module according to operational order in distance teaching, when student and teacher carry out interactive, the operation of client draw brush is completed by paintbrush interactive module, when carrying out deletion screen operation, the paintbrush deletion action of client is completed by deleting interactive module.The present invention can more vividly carry out interactive teaching, realize Mobile Teaching.
Description
Technical field
Field is made the present invention relates to electronic whiteboard, more particularly to a kind of realized by service end and client interaction is broadcasted
The method of teaching.
Background technology
If existing teaching scene Ability of Normal School Students will carry out writing interactive on electronic whiteboard simultaneously, teacher and student is same
When go on dais and write on blank, it is less efficient, while student can not be intuitive to see the global writing on blackboard
Situation, by present specification, the teachers and students in classroom is caused on the basis of students and teacher is used in conjunction with tablet personal computer exist simultaneously
Write more lively on blackboard, realize portable distance teaching.
The content of the invention
The technical problem to be solved in the present invention, is that provide one kind realizes distance teaching by service end and client interaction
Method, can more vividly carry out interactive teaching, realize Mobile Teaching.
What the present invention was realized in：A kind of method that distance teaching is realized by service end and client interaction, it is described
Method need to provide data transmission module, background transmission module, paintbrush interactive module and delete interactive module；The data transfer
Module, data are transmitted for transmitting between service end and client, the client includes student side and teacher side；The background
Transport module, for carrying out service end background transmission after distance teaching or when switching the page；The paintbrush interactive module, for complete
Into the operation of client draw brush；The deletion interactive module, the paintbrush deletion action for client；
Methods described is：Data cube computation is carried out to service end and client by data transmission module, and realizes service end
Data transfer between client；Background delivery module sends the background of service end according to operational order in distance teaching
To student side or teacher side, when student and teacher carry out interactive, the behaviour that client draw brush is completed by paintbrush interactive module
Make, wherein service end, student side, teacher side either end can receive the paintbrush that other ends are sent；Carrying out deleting picture behaviour
When making, the paintbrush deletion action of client is completed by deleting interactive module, wherein student side can receive teacher side or service end
The paintbrush deleted, teacher side and the service end energy paintbrush that mutually Phase Receiver other side is deleted.
Further, it is described to be specially to service end and client progress data cube computation by data transmission module：
It is attached between step 11, service end and client using TCP modes, two ports is connected altogether, that is, are respectively
Port A and port B；
Step 12, port A command datas are used for service end and client carries out command interaction；
Step 13, port B carry out non-order data transfer, for transmitting the non-command number between service end and client
According to.
Further, the step 12 is specially：
Step 12.1, service end edit the order S of client to be sent to；
Step 12.2, order S carry out UTF8 codings；
Step 12.3, order S afterbody addition new line symbols；
Step 12.4, packaged order S by port A is sent to client；
Step 12.5, client pass through the order S using new line symbol as separator receiving port A；
Step 12.6, client carry out UTF8 decodings to order S；
Step 12.7, in distance teaching using background transmission module and paintbrush interactive module to order S processing.
Further, the step 13 is specially：
Step 13.1, service end first send data command to client using step 12；
Step 13.2, client are received to be prepared to receive the data that service end is sent after order；
Step 13.3, service end have been sent after order, and data are sent into data until having sent from port B to client
Into；
Step 13.4, client receive data until data receiver is completed from port B.
Further, the background of service end is sent to by the background delivery module in distance teaching according to operational order
Student side or teacher side, be specially：
Step 21, service end enter after distance teaching or the switching page first imparts knowledge to students Page-saving for one by current broadcast
Jpg background pictures；
Step 22, service end encapsulation background transmission order order contain current page size, the file of picture file
Size；
Jpg background pictures are sent to client by step 23, service end by data transmission module；
Step 24, client are received after jpg background pictures according to service end page-size, and client itself page-size
Jpg background pictures are zoomed in and out, and preserve the scaling of service end page-size and client itself page-size.
Further, the operation that client draw brush is completed by paintbrush interactive module, be specially：
Step 31, teacher side draw brush object P1；
Paintbrush object P1 data are saved in a byte stream Q1 by step 32, teacher side, paintbrush object P1 data
Include the points of paintbrush object, paintbrush object array a little, brush color, pen is wide, transparency；
Step 33, teacher side encapsulation paintbrush object P1 orders, object P1 orders include byte stream Q1 size, teacher's end page
Face size；
Step 34, teacher side can cross data transmission module and paintbrush object P1 orders and paintbrush object P1 data are sent into clothes
Business end；
Step 35, service end receive paintbrush object P1 orders by data transmission module, and to obtain teacher side page-size wide
W1, high H1；
Step 36, service end receive paintbrush object P1 data by data transmission module, by paintbrush object P1 data
Points, array a little, brush color, pen is wide, and transparency sets up distance teaching paintbrush object P2, by W1, H1 and clothes
Be engaged in end itself the wide W2 of page-size, and high H2, which is divided by, can obtain the two size xR1, yR1；
Step 37, using xR1, yR1 is zoomed in and out to paintbrush object P2 so that paintbrush object P2 is relative with paintbrush object P1
Position is straight consistent；
Paintbrush object P2 data are saved in a byte stream Q2 by step 38, service end, paintbrush object P2 data
Include the points of paintbrush object, paintbrush object array a little, brush color, pen is wide, transparency；
Step 39, service end encapsulation paintbrush object P2 orders, object P2 orders include：Byte stream Q2 size, service end
Page-size；
Step 40, service end can cross data transmission module and paintbrush object P2 orders and paintbrush object P2 data are sent into
Cause trouble；
Step 41, student side receive paintbrush object P2 orders by data transmission module, and to obtain service end page-size wide
W3, high H3；
Step 42, student side receive paintbrush object P2 data by data transmission module, by paintbrush object P2 data
Points, put array, brush color, pen is wide, transparency sets up paintbrush object P3, by W3, and itself page of H3 and student side is big
Small W4, H4, which are divided by, can obtain the two size xR2, yR2；
Step 43, using xR2, yR2 is zoomed in and out to paintbrush object P3 so that paintbrush object P3 is relative with paintbrush object P2
Position is straight consistent.
Further, the paintbrush deletion action that client is completed by deleting interactive module, be specially：
Step 51, teacher side are wiped current page space part, and erasure location and size are respectively coordinate L1, T1, with
Wide W1, high H1；
Step 52, teacher side encapsulation erasing order 1, order 1 include：L1, T1, W1, H1, teacher side page-size；
Step 53, teacher side can cross data transmission module and erasing order 1 are sent into service end；
Step 54, service end receive erasing order 1 by data transmission module and obtain teacher side page-size PW1, PH1,
Erasure location L1, T1, W1, H1；
Step 55, by PW1, PH1 and service end itself page-size PW2, PH2, which is divided by, can obtain the two size
xR1,yR1；
Step 56, using L1, T1, W1, the rectangle of H1 compositions presses xR1, and yR1, which is zoomed in and out, obtains L2, T2, W2, H2 sizes
Rectangle X1；
Step 57, with this rectangle X1 delete work as the service end page in paintbrush；
Step 58, service end encapsulation erasing order 2, order 2 include：Service end page-size, coordinate L2, T2, and wide W2,
High H2；
Step 59, service end can cross data transmission module and erasing order 2 are sent into student side；
Step 60, student side receive erasing order 2 by data transmission module and obtain service end page-size PW2, PH2,
Erasure location L2, T2, W2, H2；
Step 61, by PW2, PH2 and student side itself page-size PW3, PH3, which is divided by, can obtain the two size
xR2,yR2；
Step 62, using L2, T2, W2, the rectangle of H2 compositions presses xR2, and yR2, which is zoomed in and out, obtains L3, T3, W3, H3 sizes
Rectangle X2；
Step 63, with this rectangle X2 delete work as the student side page in paintbrush
The invention has the advantages that：The present invention makes teacher side, student side (teacher side student side is referred to as client), service
End carries out distance teaching, and the background of service end is sent to student by background delivery module according to operational order in distance teaching
End, wherein teacher side, either end can receive the paintbrush that other ends are sent, and student side can receive teacher side or service end
The paintbrush deleted, teacher side and service end can paintbrushes that mutually Phase Receiver other side is deleted.So that teachers and students pass through in classroom
The present invention can more vividly carry out interactive teaching, realize Mobile Teaching；And interactive speed is fast, performance is stable, interaction number
According to accurate.
Brief description of the drawings
Fig. 1 is the inventive method schematic flow sheet.
Embodiment
Refer to shown in Fig. 1, a kind of method that distance teaching is realized by service end and client interaction of the invention, institute
The method of stating need to provide data transmission module, background transmission module, paintbrush interactive module and delete interactive module；The data are passed
Defeated module, data are transmitted for transmitting between service end and client, the client includes student side and teacher side；The back of the body
Scape transport module, for carrying out service end background transmission after distance teaching or when switching the page；The paintbrush interactive module, is used for
Complete the operation of client draw brush；The deletion interactive module, the paintbrush deletion action for client；
Methods described is：Data cube computation is carried out to service end and client by data transmission module, and realizes service end
Data transfer between client；Background delivery module sends the background of service end according to operational order in distance teaching
To student side or teacher side, when student and teacher carry out interactive, the behaviour that client draw brush is completed by paintbrush interactive module
Make, wherein service end, student side, teacher side either end can receive the paintbrush that other ends are sent；Carrying out deleting picture behaviour
When making, the paintbrush deletion action of client is completed by deleting interactive module, wherein student side can receive teacher side or service end
The paintbrush deleted, teacher side and the service end energy paintbrush that mutually Phase Receiver other side is deleted.
Wherein, it is described to be specially to service end and client progress data cube computation by data transmission module：
It is attached between step 11, service end and client using TCP modes, two ports is connected altogether, that is, are respectively
Port A and port B；
Step 12, port A command datas are used for service end and client carries out command interaction；The step 12 is specific
For：
Step 12.1, service end edit the order S of client to be sent to；
Step 12.2, order S carry out UTF8 codings；
Step 12.3, order S afterbody addition new line symbols；
Step 12.4, packaged order S by port A is sent to client；
Step 12.5, client pass through the order S using new line symbol as separator receiving port A；
Step 12.6, client carry out UTF8 decodings to order S；
Step 12.7, in distance teaching using background transmission module and paintbrush interactive module to order S processing.
Step 13, port B carry out non-order data transfer, for transmitting the non-command number between service end and client
According to.The step 13 is specially：
Step 13.1, service end first send data command to client using step 12；
Step 13.2, client are received to be prepared to receive the data that service end is sent after order；
Step 13.3, service end have been sent after order, and data are sent into data until having sent from port B to client
Into；
Step 13.4, client receive data until data receiver is completed from port B.
Wherein, the background of service end is sent to student by the background delivery module in distance teaching according to operational order
End or teacher side, be specially：
Step 21, service end enter after distance teaching or the switching page first imparts knowledge to students Page-saving for one by current broadcast
Jpg background pictures；
Step 22, service end encapsulation background transmission order order contain current page size, the file of picture file
Size；
Jpg background pictures are sent to client by step 23, service end by data transmission module；
Step 24, client are received after jpg background pictures according to service end page-size, and client itself page-size
Jpg background pictures are zoomed in and out, and preserve the scaling of service end page-size and client itself page-size.
The operation that client draw brush is completed by paintbrush interactive module, be specially：
Step 31, teacher side draw brush object P1；
Paintbrush object P1 data are saved in a byte stream Q1 by step 32, teacher side, paintbrush object P1 data
Include the points of paintbrush object, paintbrush object array a little, brush color, pen is wide, transparency；
Step 33, teacher side encapsulation paintbrush object P1 orders, object P1 orders include byte stream Q1 size, teacher's end page
Face size；
Step 34, teacher side can cross data transmission module and paintbrush object P1 orders and paintbrush object P1 data are sent into clothes
Business end；
Step 35, service end receive paintbrush object P1 orders by data transmission module, and to obtain teacher side page-size wide
W1, high H1；
Step 36, service end receive paintbrush object P1 data by data transmission module, by paintbrush object P1 data
Points, array a little, brush color, pen is wide, and transparency sets up distance teaching paintbrush object P2, by W1, H1 and clothes
Be engaged in end itself the wide W2 of page-size, and high H2, which is divided by, can obtain the two size xR1, yR1；
Step 37, using xR1, yR1 is zoomed in and out to paintbrush object P2 so that paintbrush object P2 is relative with paintbrush object P1
Position is straight consistent；
Paintbrush object P2 data are saved in a byte stream Q2 by step 38, service end, paintbrush object P2 data
Include the points of paintbrush object, paintbrush object array a little, brush color, pen is wide, transparency；
Step 39, service end encapsulation paintbrush object P2 orders, object P2 orders include：Byte stream Q2 size, service end
Page-size；
Step 40, service end can cross data transmission module and paintbrush object P2 orders and paintbrush object P2 data are sent into
Cause trouble；
Step 41, student side receive paintbrush object P2 orders by data transmission module, and to obtain service end page-size wide
W3, high H3；
Step 42, student side receive paintbrush object P2 data by data transmission module, by paintbrush object P2 data
Points, put array, brush color, pen is wide, transparency sets up paintbrush object P3, by W3, and itself page of H3 and student side is big
Small W4, H4, which are divided by, can obtain the two size xR2, yR2；
Step 43, using xR2, yR2 is zoomed in and out to paintbrush object P3 so that paintbrush object P3 is relative with paintbrush object P2
Position is straight consistent.
The paintbrush deletion action that client is completed by deleting interactive module, be specially：
Step 51, teacher side are wiped current page space part, and erasure location and size are respectively coordinate L1, T1, with
Wide W1, high H1；
Step 52, teacher side encapsulation erasing order 1, order 1 include：L1, T1, W1, H1, teacher side page-size；
Step 53, teacher side can cross data transmission module and erasing order 1 are sent into service end；
Step 54, service end receive erasing order 1 by data transmission module and obtain teacher side page-size PW1, PH1,
Erasure location L1, T1, W1, H1；
Step 55, by PW1, PH1 and service end itself page-size PW2, PH2, which is divided by, can obtain the two size
xR1,yR1；
Step 56, using L1, T1, W1, the rectangle of H1 compositions presses xR1, and yR1, which is zoomed in and out, obtains L2, T2, W2, H2 sizes
Rectangle X1；
Step 57, with this rectangle X1 delete work as the service end page in paintbrush；
Step 58, service end encapsulation erasing order 2, order 2 include：Service end page-size, coordinate L2, T2, and wide W2,
High H2；
Step 59, service end can cross data transmission module and erasing order 2 are sent into student side；
Step 60, student side receive erasing order 2 by data transmission module and obtain service end page-size PW2, PH2,
Erasure location L2, T2, W2, H2；
Step 61, by PW2, PH2 and student side itself page-size PW3, PH3, which is divided by, can obtain the two size
xR2,yR2；
Step 62, using L2, T2, W2, the rectangle of H2 compositions presses xR2, and yR2, which is zoomed in and out, obtains L3, T3, (position) W3,
(i.e. rectangle X2 positions are in L3, T3 by the rectangle X2 of H3 sizes；Size is W3, H3)；
Step 63, with this rectangle X2 delete work as the student side page in paintbrush.
In a word, if teacher and student will be while walk existing teaching scene Ability of Normal School Students will be write on blackboard simultaneously when
Upper dais is write on blackboard, while student can not be intuitive to see the global writing situation on blackboard, by this hair
It is bright on the basis of students and teacher is used in conjunction with tablet personal computer so that teachers and students in classroom write on blackboard more gives birth to simultaneously
It is dynamic, realize Mobile Teaching.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (6)
1. a kind of method that distance teaching is realized by service end and client interaction, it is characterised in that：Methods described needs to provide
Data transmission module, background transmission module, paintbrush interactive module and deletion interactive module；The data transmission module, is used for
The data between service end and client are transmitted, the client includes student side and teacher side；The background transmission module, is used
In after distance teaching or switching the page when carry out service end background transmission；The paintbrush interactive module, is painted for completing client
The operation of paintbrush processed；The deletion interactive module, the paintbrush deletion action for client；
Methods described is：Data cube computation is carried out to service end and client by data transmission module, and realizes service end and visitor
Data transfer between the end of family；The background of service end is sent to by background transmission module according to operational order in distance teaching
Cause trouble or teacher side, when student and teacher carry out interactive, the operation of client draw brush is completed by paintbrush interactive module, its
Middle service end, student side, teacher side either end can receive the paintbrush that other ends are sent；When carrying out deletion screen operation,
The paintbrush deletion action of client is completed by deleting interactive module, wherein student side can receive teacher side or service end is deleted
Paintbrush, teacher side and service end can paintbrushes that mutually Phase Receiver other side is deleted；
The operation that client draw brush is completed by paintbrush interactive module, be specially：
Step 31, teacher side draw brush object P1；
Paintbrush object P1 data are saved in a byte stream Q1 by step 32, teacher side, and paintbrush object P1 data include
The points of paintbrush object, paintbrush object array a little, brush color, pen is wide, transparency；
Step 33, teacher side encapsulation paintbrush object P1 orders, object P1 orders include byte stream Q1 size, and the teacher side page is big
It is small；
Paintbrush object P1 orders and paintbrush object P1 data are sent to service by step 34, teacher side by data transmission module
End；
Step 35, service end receive paintbrush object P1 orders by data transmission module and obtain the wide W1 of teacher side page-size, high
H1；
Step 36, service end receive paintbrush object P1 data by data transmission module, pass through the point in paintbrush object P1 data
Number, array a little, brush color, pen is wide, and transparency sets up distance teaching paintbrush object P2, by W1, H1 and service end
The wide W2 of itself page-size, high H2, which is divided by, can obtain the two size xR1, yR1；
Step 37, using xR1, paintbrush object P2 is zoomed in and out yR1 so that paintbrush object P2 and paintbrush object P1 relative positions
Unanimously；
Paintbrush object P2 data are saved in a byte stream Q2 by step 38, service end, and paintbrush object P2 data include
The points of paintbrush object, paintbrush object array a little, brush color, pen is wide, transparency；
Step 39, service end encapsulation paintbrush object P2 orders, object P2 orders include：Byte stream Q2 size, the service end page
Size；
Paintbrush object P2 orders and paintbrush object P2 data are sent to student by step 40, service end by data transmission module
End；
Step 41, student side receive paintbrush object P2 orders by data transmission module and obtain the wide W3 of service end page-size, high
H3；
Step 42, student side receive paintbrush object P2 data by data transmission module, pass through the point in paintbrush object P2 data
Number, institute's array a little, brush color, pen is wide, and transparency sets up paintbrush object P3, by W3, H3 and student side itself page
Size W4, H4, which is divided by, can obtain the two size xR2, yR2；
Step 43, using xR2, paintbrush object P3 is zoomed in and out yR2 so that paintbrush object P3 and paintbrush object P2 relative positions
Unanimously.
2. a kind of method that distance teaching is realized by service end and client interaction according to claim 1, its feature
It is：It is described to be specially to service end and client progress data cube computation by data transmission module：
It is attached between step 11, service end and client using TCP modes, two ports, i.e., respectively port A is connected altogether
With port B；
Step 12, port A command datas are used for service end and client carries out command interaction；
Step 13, port B carry out non-order data transfer, for transmitting the non-order data between service end and client.
3. a kind of method that distance teaching is realized by service end and client interaction according to claim 2, its feature
It is：The step 12 is specially：
Step 12.1, service end edit the order S of client to be sent to；
Step 12.2, order S carry out UTF8 codings；
Step 12.3, order S afterbody addition new line symbols；
Step 12.4, packaged order S by port A is sent to client；
Step 12.5, client are by separator receiving port A order S, and the separator is new line symbol；
Step 12.6, client carry out UTF8 decodings to order S；
Step 12.7, in distance teaching using background transmission module and paintbrush interactive module to order S processing.
4. a kind of method that distance teaching is realized by service end and client interaction according to claim 2, its feature
It is：The step 13 is specially：
Step 13.1, service end first send data command to client using step 12；
Step 13.2, client are received to be prepared to receive the data that service end is sent after order；
Step 13.3, service end have been sent after order, and data are sent into data until being sent completely from port B to client；
Step 13.4, client receive data until data receiver is completed from port B.
5. a kind of method that distance teaching is realized by service end and client interaction according to claim 1, its feature
It is：The background of service end is sent to student side or teacher by the background transmission module in distance teaching according to operational order
End, be specially：
Step 21, service end, which enter after distance teaching or the switching page, first carries on the back current broadcast teaching Page-saving for a jpg
Scape picture；
Step 22, service end encapsulation background transmission order order contain current page size, the file size of picture file；
Jpg background pictures are sent to client by step 23, service end by data transmission module；
Step 24, client are received after jpg background pictures according to service end page-size, and client itself page-size pair
Jpg background pictures are zoomed in and out, and preserve the scaling of service end page-size and client itself page-size.
6. a kind of method that distance teaching is realized by service end and client interaction according to claim 1, its feature
It is：The paintbrush deletion action that client is completed by deleting interactive module, be specially：
Step 51, teacher side are wiped current page space part, and erasure location and size are respectively coordinate L1, T1, and wide W1,
High H1；
Step 52, teacher side encapsulation erasing order 1, order 1 include：L1, T1, W1, H1, teacher side page-size；
Erasing order 1 is sent to service end by step 53, teacher side by data transmission module；
Step 54, service end receive erasing order 1 by data transmission module and obtain teacher side page-size PW1, PH1, erasing
Position L1, T1, W1, H1；
Step 55, by PW1, PH1 and service end itself page-size PW2, PH2, which is divided by, can obtain the two size xR1,
yR1；
Step 56, using L1, T1, W1, the rectangle of H1 compositions presses xR1, and yR1, which is zoomed in and out, obtains L2, T2, W2, the square of H2 sizes
Shape X1；
Step 57, with this rectangle X1 delete work as the service end page in paintbrush；
Step 58, service end encapsulation erasing order 2, order 2 include：Service end page-size, coordinate L2, T2, with wide W2, height
H2；
Erasing order 2 is sent to student side by step 59, service end by data transmission module；
Step 60, student side receive erasing order 2 by data transmission module and obtain service end page-size PW2, PH2, erasing
Position L2, T2, W2, H2；
Step 61, by PW2, PH2 and student side itself page-size PW3, PH3, which is divided by, can obtain the two size xR2,
yR2；
Step 62, using L2, T2, W2, the rectangle of H2 compositions presses xR2, and yR2, which is zoomed in and out, obtains L3, T3, W3, the square of H3 sizes
Shape X2；
Step 63, with this rectangle X2 delete work as the student side page in paintbrush.
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| CN105448150B (en) * | 2015-11-09 | 2018-08-24 | 天脉聚源（北京）教育科技有限公司 | A kind of method and device that the information of tutoring system is sent |
| CN109460221A (en) * | 2018-10-23 | 2019-03-12 | 安徽慧视金瞳科技有限公司 | A kind of intelligent view cloud Teaching System Multifunctional white board drawing tool |
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