CN105261252B - A kind of real-time action rendering intent based on panorama learning platform system - Google Patents
A kind of real-time action rendering intent based on panorama learning platform system Download PDFInfo
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- CN105261252B CN105261252B CN201510790177.0A CN201510790177A CN105261252B CN 105261252 B CN105261252 B CN 105261252B CN 201510790177 A CN201510790177 A CN 201510790177A CN 105261252 B CN105261252 B CN 105261252B
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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 real-time action rendering intent based on panorama learning platform system.The classroom explanation action of teacher's client identification teacher, gather the origin coordinates and motion characteristic code of explanation action, the explanation voice of teacher is recorded simultaneously, and record the explanation action operating position coordinate, motion characteristic code and occur explanation action when explanation three core datas of voice and explain type of action, explanation action occur time together with, formed binary data stream by central server carry out remote data transmission or generation file preserved.After student client receives binary data stream, by the panorama learning platform system of student client, parse and above-mentioned data, temporally it is rendered on display by data order in real time.Teacher is said that solution preocess, explanation voice are that student synchronizes broadcasting by the present invention, reaches the teaching purpose of panorama real-time Simulation true class.
Description
Technical field
The present invention relates to a kind of data transmission method of internet remote teaching, more particularly to a kind of panorama that is based on to learn to put down
The real-time action rendering intent of platform system.This item data transmission technology can be widely applied to common teaching, teleconference and the disaster relief
The every field such as the remote command of rescue.
Background technology
With the development of digital technology, Informalized teaching has begun to be applied in daily teaching work.And information-based religion
Learn, particularly remote informationization is imparted knowledge to students, and is all the carrier for relying on video technique as education informations all the time at present.Many institute's weeks
Know, transmit video format file it is per second at least transmit 25 pictures, volume is big, high to network bandwidth requirement, smooth at present straight
The bandwidth required for HD video is broadcast typically in more than 512kB/s, although fiber optic network has spread to big and medium-sized cities, really
The place for needing remote informationization to impart knowledge to students, network environment is still poor, has become long-range letter the shortcomings that video information transmission
One big obstacle of breathization teaching.
In addition, video content, not by the Video editing software of specialty, can not just modify once recording.Therefore learn
Raw can not be realized with teacher constantly shares interaction, can not bring the first visual angle that student's body faces classroom scene.
The content of the invention
In order to solve the above problems, the present invention provides a kind of real-time action side of rendering based on panorama learning platform system
Method.The panorama learning platform system includes teacher's client, central server and student client three parts.First, always
The different classroom explanation action of teacher's client identification teacher, obtains type of action, and gather explanation action position coordinates and
Motion characteristic code, while record the explanation voice of teacher.By operating position coordinate, motion characteristic code and occur when explanation acts
Three core datas of voice are explained with explaining type of action, together with the time that explanation action occurs, form binary data circulation
Cross central server progress remote data transmission or generation file is preserved.After student client receives binary data stream,
By the panorama learning platform system of student client, parse and read the type of action in data, motion characteristic code, action seat
Cursor position and occur explanation action when explanation voice, temporally data order it is rendered on display in real time, realize in fact
The picture of Shi Zaixian teaching processes.
The explanation action includes：Writing on the blackboard, teaching pole guide, chalk-writing, setting-out, picture shape (rectangle, triangle, cylinder
Body, cone, cube), open or close small blackboard, using blackboard eraser, insert pictures, insert video, open or close writing on the blackboard,
Insert word etc..
For example, teacher during teaching explanation, clicks on the powder on the panorama learning platform system interface of teacher's client
Icon, then panorama learning platform system just obtained a specific type of action ----i.e. chalk-writing, started to write in teacher
When, getting pen-down position --- i.e. the coordinate position of this action, during writing, the panorama study of teacher's client is flat
Platform system records the track that chalk-writing is crossed in real time --- the motion characteristic code of-i.e. chalk This move.So, motion characteristic code,
Three core datas of explanation voice when acting coordinate position and explanation action occurs occur with explanation type of action, explanation action
Time formed together binary data stream carry out real time remote data transfer or generation file preserved.Student client is received
To after binary data stream, by the student client of panorama learning platform system, parse and read the type of action in data,
Motion characteristic code, action coordinate position and explanation voice when explanation action occurs, temporally data order is by its real-time rendering
Onto display, the picture for reproducing teaching process in real time is realized.
As further preferred embodiment, in data transmission procedure, as type of action does not change, then write from memory always
Think current action type, data transfer is only needed two cores of explanation voice when acting coordinate position and explanation action occurs
Calculation greatly reduces data transfer throughput according to binary data stream transmission is formed together with the time occurred with explanation action.Example
Such as, teacher clicks on the chalk icon on the panorama learning platform system interface of teacher's client, then entirely during teaching explanation
Scape learning platform system has just obtained a specific type of action ----i.e. chalk-writing, during teacher writes, always
The panorama learning platform system of teacher's client records the track that chalk-writing is crossed in real time --- the motion characteristic code of-i.e. chalk action,
At this moment, if type of action keeps constant in a period of time (such as 2 seconds), system is defaulted as current action type and is always
Chalk-writing, data transfer are only needed two core datas of explanation voice when motion characteristic code and generation explanation action with saying
Solution action occur time formed together binary data stream transmission, until type of action change (such as teacher click on panorama
Practise other icons on plateform system interface).
Operating position coordinate is always the coordinate position that this action starts, for different actions, motion characteristic code meeting
Include different information：
When type of action is chalk-writing, motion characteristic code is the color and person's handwriting coordinate of word.
When type of action is setting-out, motion characteristic code is the color and person's handwriting coordinate of line.
When type of action is picture shape, motion characteristic code is graphic feature descriptor code and position coordinates.For rectangle, figure
Shape feature descriptor code is included for the wide and high of rectangle；For triangle, graphic feature descriptor code is the coordinate on Atria summit；
For cylinder and cone, graphic feature descriptor code is the bilge redius and height of cylinder or cone；For cube, figure
Shape feature descriptor code is that cubical bottom is wide, high and cubical height.
For wiping the continuous position coordinate in path using blackboard eraser, motion characteristic code for the size and blackboard eraser of blackboard eraser.
For insert pictures, video, motion characteristic code is picture, the binary system of the reference address of video or file in itself
Code.
For inserting word, motion characteristic code is word content.
Guided for teaching pole, motion characteristic code is the position coordinates of teaching pole guided path.
So, compared with traditional video file, data transfer mode of the present invention, the change of core is only retained
Information data, that is, the starting coordinate position acted, the motion characteristic code of change and the explanation voice of corresponding time carry out data
Transmission or record, so as to which the data transfer throughput of Informalized teaching be greatly reduced.Carried out using technical scheme long-range
Teaching, it is only necessary to 3kb/s transmission speed, be 1 the percent of video content.And carried out using technical scheme
Course is live to be preserved, and the file of the course generation of 45 minutes only has 15Mb, is 1/10th of conventional video content.
In addition, action generation time can also carry out delay correction, ensure the picture and the uniformity at scene of reduction, so as to
Reach the purpose of remote information real time education.
Due to being that dynamic renders, therefore rendering content can be intervened at any time, so as to realize interaction.Using this method
The operation of the remote teaching of realization, spokesman and audience can be shown on one device simultaneously, and all use participated in
Family, it can synchronously see proprietary operation, not interfere with each other non-interference.
Brief description of the drawings
Fig. 1 is the data flow architecture figure of rendering intent of the present invention
Wherein, 1 be teacher explanation picture；2 be time data when explanation action occurs；3 be type of action；4 are
Make condition code；5 be operating position coordinate；6 be the explanation voice in data flow.
Embodiment
Illustrate the embodiment of the present invention referring to the drawings.
Fig. 1 is the binary data stream in transmission, and the binary data stream includes motion characteristic code 4, operating position coordinate 5
With 6 three core datas of explanation voice during generation explanation action, time data 2, action class when itself and explanation action occur
Type 3 forms binary data stream together, after student client receives binary data stream, is learnt by the panorama of student client
Plateform system, explanation voice when parsing and read the motion characteristic code in file, acting coordinate position and explanation action occurs,
According to explanation motion characteristic code, the coordinate position of the action and the explanation voice at corresponding moment, by rendering program, during by this
The explanation action of intermediate node is all rendered on the panorama learning platform system interface of display device.Multiple continuous timing nodes
Repeat dynamic to carry out, the explanation picture 1 of teacher will be formed in student client.
Claims (3)
1. a kind of real-time action rendering intent based on panorama learning platform system, the panorama learning platform system includes teacher
Client, central server and student client three parts, it is characterised in that real-time action rendering intent is as follows：First, always
The different classroom explanation action of teacher's client identification teacher, obtains type of action, and gather explanation action position coordinates and
Motion characteristic code, while the explanation voice of teacher is recorded, by operating position coordinate, motion characteristic code and occur when explanation acts
Three core datas of voice are explained with explaining type of action, together with the time that explanation action occurs, form binary data circulation
Cross central server progress remote data transmission or generation file is preserved, the position coordinates of the explanation action is dynamic for this
Make the coordinate position started, in data transmission procedure, if type of action does not change, be defaulted as current action class always
Type, data transfer are only dynamic by two core datas of explanation voice when the motion characteristic code of change and generation explanation action and explanation
Make time for occurring, new operating position coordinate forms binary data stream and sent to student client, student client together
After receiving binary data stream, by the panorama learning platform system of student client, parse and read the action class in data
Type, motion characteristic code, action coordinate position and explanation voice when explanation action occurs, temporally data order is by its real-time wash with watercolours
Contaminate on display, realize the picture for reproducing teaching process in real time, wherein, when type of action is chalk-writing, its motion characteristic
Code is the color and person's handwriting coordinate of word, and the explanation action includes：Teaching pole guide, chalk-writing, setting-out, draw geometric figure, beat
On or off close small blackboard, using blackboard eraser, insert pictures, insert video, open or close writing on the blackboard or insertion word.
2. real-time action rendering intent according to claim 1, it is characterised in that explanation action time of origin can be with
Delay correction is carried out, ensures the picture and the uniformity at teaching classroom scene of reduction.
3. real-time action rendering intent according to claim 1, it is characterised in that explanation playback is carried out to the file of preservation
When, by teacher or the panorama learning platform system of student client, parse and read the type of action in binary data stream,
Explanation voice when motion characteristic code, action coordinate position and generation explanation action, temporally data order synchronization reduce at that time
The explanation action of teacher, it is rendered on display in real time, realizes the picture for reproducing teaching process in real time.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106303564A (en) * | 2016-08-10 | 2017-01-04 | 中山可可网络科技有限公司 | The network transfer method of education informations |
| CN106971635B (en) * | 2017-03-20 | 2022-02-01 | 厦门云开云科技有限公司 | Teaching training method and system |
| CN108364518A (en) * | 2018-03-13 | 2018-08-03 | 闫健 | A kind of classroom interactions' process record method based on panorama teaching pattern |
| CN111343230A (en) * | 2020-01-22 | 2020-06-26 | 北京翼鸥教育科技有限公司 | Online real-time initiating and responding method and interactive system based on exclusive small blackboard |
| CN112987921B (en) * | 2021-02-19 | 2024-03-15 | 车智互联（北京）科技有限公司 | VR scene explanation scheme generation method |
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| CN101316356A (en) * | 2007-05-29 | 2008-12-03 | 北京大学 | Blackboard writing dynamic image compression method facing remote education |
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