CN108366417A - A kind of straight recorded broadcast interaction systems in classroom - Google Patents
A kind of straight recorded broadcast interaction systems in classroom Download PDFInfo
- Publication number
- CN108366417A CN108366417A CN201810195586.XA CN201810195586A CN108366417A CN 108366417 A CN108366417 A CN 108366417A CN 201810195586 A CN201810195586 A CN 201810195586A CN 108366417 A CN108366417 A CN 108366417A
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- Prior art keywords
- signal
- power
- classroom
- recorded broadcast
- power section
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
-
- 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
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/267—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the information rate
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Business, Economics & Management (AREA)
- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Optical Communication System (AREA)
Abstract
The invention belongs to Web-based instruction technical fields, disclose a kind of straight recorded broadcast interaction systems in classroom, it is provided with converter unit, the converter unit is connect by data line with display, electronic blackboard, sound equipment, laser lamp, and the storage item is connect by data line with video camera, phonographic recorder, controller, electronic blackboard.The invention is provided with electronic blackboard, it can be directly shown by after signal transmission on yet another classroom electronic blackboard, it is provided with laser lamp, allow speechmaker on live streaming classroom as true class carries out control use, this system makes the straight recorded broadcast in classroom truer so that more interesting in interactive process.
Description
Technical field
The invention belongs to the straight recorded broadcast interaction systems of Web-based instruction technical field more particularly to a kind of classroom.
Background technology
Currently, the prior art commonly used in the trade is such：
Currently, popularizing with network, many schools open teaching mode of network, the Web-based instruction and conventional teaching mould
Formula compares, and the Web-based instruction breaches the limitation of region and time, and the Web-based instruction has the convenience of bigger, current live streaming road
Interactive network classroom limits simultaneously in the region of breakthrough so that and classroom lacks authenticity, has lacked the sense of urgency of study,
It is difficult to reach traditional teaching pattern.
In conclusion problem of the existing technology is：
Not high by directly recording classroom classmates' participation of live streaming at present, the interactivity in classroom is not strong, and classroom is obtained with true
Atmosphere gap so that the efficiency in classroom compares beneath.
Invention content
In view of the problems of the existing technology, the present invention provides a kind of straight recorded broadcast interaction systems in classroom,
The invention is realized in this way a kind of straight recorded broadcast interaction systems in classroom, the novel bacterial culture apparatus setting
Have：
Converter unit
The converter unit is connect by data line with display, electronic blackboard, sound equipment, laser lamp, the storage item
It is connect with video camera, phonographic recorder, controller, electronic blackboard by data line.
The converter unit marks off multiple power sections for meeting orthogonality condition according to system information in power domain；
Receive the status information of a plurality of reporting of user；
It is that the multiplex signal of a plurality of user distributes a plurality of power section according to status information；
The transmission power of matched signal is adjusted according to the width value of power section；
Multiple signals after adjustment power are summed up, the superposed signal of multiple signals is generated；
Wherein, the width value of power section is the transmission power value needed for multiplex signal；Multiplex signal includes：One
The multiple signals transmitted all the way and needed for multiple signals and multiple users transmitted needed for a user；
Power section number is included needed for the signal of the roads multiple signals Zhong Mei：
By using the status information of each user, calculates and meet per road signal transmission rate under multiplexing is assumed at idle point
It is required that transmission power；
Power ratio is obtained with the result of calculation of transmission power divided by the width value for having divided most narrow power section in frequency band；
1 is added to obtain the number per the required power section of road signal again by going decimal place to ask whole power ratio；
Include for the multiplex signal distribution power section of a plurality of user：
Multiple power sections are by width from being too narrow to wide sequence；
According to the status information of reporting of user, sort from small to for the multiple signals of multiple users by signal propagation losses；
It is that the small signal distribution width of propagation loss is narrow according to the number of the propagation loss of subscriber signal and required power section
Power section, be that the high signal of propagation loss distributes width wide power section；
The status information reported includes：Channel state information, noise information and interference information；
The status information reported further includes：Need way, modulation system and the error rate index requirement of transmission signal；
Need transmit signal way include：User is according to transfer rate aggregate demand the letter for needing high-speed to transmit all the way
Number it is divided into the signal that multichannel needs lower rate parallel to transmit.
Further, the converter is connect with signal receiver.
Further, the signal projector is connect with storage item.
Further, the signal receiver passes through wireless transmission with signal transmitting terminal.
Advantages of the present invention and good effect are：
The invention is provided with electronic blackboard, can directly be opened up by after signal transmission on yet another classroom electronic blackboard
Show, be provided with laser lamp so that speechmaker can carry out control use on live streaming classroom such as true class.
This system makes the straight recorded broadcast in classroom truer, more added with the atmosphere of study among classroom so that interactive process
In it is more interesting, and then improve Classroom instruction quality.
Converter unit marks off multiple power sections for meeting orthogonality condition according to system information in power domain；Receive one
The status information of a and multiple reporting of user；It is the multiplex signal distribution one of a plurality of user according to status information
A and multiple power sections；The transmission power of matched signal is adjusted according to the width value of power section；To the multichannel letter after adjustment power
It number sums up, generates the superposed signal of multiple signals；The accuracy needs that ensure that different data transmission, avoid the phase of signal
Mutually interference.Influence quality of instruction.
Description of the drawings
Fig. 1 is the straight recorded broadcast interaction systems structural schematic diagram in classroom provided in an embodiment of the present invention；
Fig. 2 is video camera connection diagram provided in an embodiment of the present invention；
In figure：1, display screen；2, signal transmitting terminal；3, electronic blackboard；4, converter unit；5, sound equipment；6, laser lamp；7、
Control panel；8, phonographic recorder；9, item is stored；10, video camera；11, signal receiver.
Specific implementation mode
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and coordinate attached drawing
Detailed description are as follows.
The structure of the present invention is explained in detail below in conjunction with the accompanying drawings.
As shown in Figures 1 and 2, which includes with straight recorded broadcast interaction systems：Display screen 1, signal transmitting terminal 2, electronics are black
Plate 3, converter unit 4, sound equipment 5, laser lamp 6, control panel 7, phonographic recorder 8, storage item 9, video camera 10, signal receiver 11.
Converter unit 4 is connect by data line with display 1, electronic blackboard 3, sound equipment 5, laser lamp 6, and storage item 9 is logical
Data line is crossed to connect with video camera 10, phonographic recorder 8, controller 7, electronic blackboard 3.
Converter 4 is connect with signal receiver 11.
Signal projector 2 is connect with storage item 9.
Signal receiver 11 passes through wireless transmission with signal transmitting terminal 2.
The converter unit marks off multiple power sections for meeting orthogonality condition according to system information in power domain；
Receive the status information of a plurality of reporting of user；
It is that the multiplex signal of a plurality of user distributes a plurality of power section according to status information；
The transmission power of matched signal is adjusted according to the width value of power section；
Multiple signals after adjustment power are summed up, the superposed signal of multiple signals is generated；
Wherein, the width value of power section is the transmission power value needed for multiplex signal；Multiplex signal includes：One
The multiple signals transmitted all the way and needed for multiple signals and multiple users transmitted needed for a user；
Power section number is included needed for the signal of the roads multiple signals Zhong Mei：
By using the status information of each user, calculates and meet per road signal transmission rate under multiplexing is assumed at idle point
It is required that transmission power；
Power ratio is obtained with the result of calculation of transmission power divided by the width value for having divided most narrow power section in frequency band；
1 is added to obtain the number per the required power section of road signal again by going decimal place to ask whole power ratio；
Include for the multiplex signal distribution power section of a plurality of user：
Multiple power sections are by width from being too narrow to wide sequence；
According to the status information of reporting of user, sort from small to for the multiple signals of multiple users by signal propagation losses；
It is that the small signal distribution width of propagation loss is narrow according to the number of the propagation loss of subscriber signal and required power section
Power section, be that the high signal of propagation loss distributes width wide power section；
The status information reported includes：Channel state information, noise information and interference information；
The status information reported further includes：Need way, modulation system and the error rate index requirement of transmission signal；
Need transmit signal way include：User is according to transfer rate aggregate demand the letter for needing high-speed to transmit all the way
Number it is divided into the signal that multichannel needs lower rate parallel to transmit.
The present invention by phonographic recorder 8, control panel 7,10 electronic blackboard 3 of camera by storage item 9 store after need to
The signal transmission to be transmitted is received to signal transmitting terminal 2, signal receiver 11, and converter unit 4 is shown after being converted
Screen 1, sound equipment 5, laser lamp 6, electronic blackboard 3 show the content of data transmission, and laser lamp 6 is used in classroom in electronic blackboard
3 point out knowledge point and prompt classmates.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,
Every any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (4)
1. a kind of straight recorded broadcast interaction systems in classroom, which is characterized in that classroom is provided with straight recorded broadcast interaction systems：Converter list
Member
The converter unit is connect by data line with display, electronic blackboard, sound equipment, laser lamp, and the storage item passes through
Data line is connect with video camera, phonographic recorder, controller, electronic blackboard；
The converter unit marks off multiple power sections for meeting orthogonality condition according to system information in power domain；
Receive the status information of a plurality of reporting of user；
It is that the multiplex signal of a plurality of user distributes a plurality of power section according to status information；
The transmission power of matched signal is adjusted according to the width value of power section；
Multiple signals after adjustment power are summed up, the superposed signal of multiple signals is generated；
Wherein, the width value of power section is the transmission power value needed for multiplex signal；Multiplex signal includes：One use
The multiple signals transmitted all the way and needed for multiple signals and multiple users transmitted needed for family；
Power section number is included needed for the signal of the roads multiple signals Zhong Mei：
By using the status information of each user, calculates and meet per the requirement of road signal transmission rate under multiplexing is assumed at idle point
Transmission power；
Power ratio is obtained with the result of calculation of transmission power divided by the width value for having divided most narrow power section in frequency band；
1 is added to obtain the number per the required power section of road signal again by going decimal place to ask whole power ratio；
Include for the multiplex signal distribution power section of a plurality of user：
Multiple power sections are by width from being too narrow to wide sequence；
According to the status information of reporting of user, sort from small to for the multiple signals of multiple users by signal propagation losses；
It is that the small signal of propagation loss distributes width narrow work(according to the number of the propagation loss of subscriber signal and required power section
Rate section is that the high signal of propagation loss distributes width wide power section；
The status information reported includes：Channel state information, noise information and interference information；
The status information reported further includes：Need way, modulation system and the error rate index requirement of transmission signal；
Need transmit signal way include：User is according to transfer rate aggregate demand the signal point for needing high-speed to transmit all the way
The signal that lower rate parallel transmits is needed for multichannel.
2. the straight recorded broadcast interaction systems in classroom as described in claim 1, which is characterized in that the converter connects with signal receiver
It connects.
3. the straight recorded broadcast interaction systems in classroom as described in claim 1, which is characterized in that the signal projector connects with storage item
It connects.
4. the straight recorded broadcast interaction systems in classroom as described in claim 1, which is characterized in that the signal receiver emits with signal
End passes through wireless transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810195586.XA CN108366417A (en) | 2018-03-09 | 2018-03-09 | A kind of straight recorded broadcast interaction systems in classroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810195586.XA CN108366417A (en) | 2018-03-09 | 2018-03-09 | A kind of straight recorded broadcast interaction systems in classroom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108366417A true CN108366417A (en) | 2018-08-03 |
Family
ID=63003674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810195586.XA Pending CN108366417A (en) | 2018-03-09 | 2018-03-09 | A kind of straight recorded broadcast interaction systems in classroom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108366417A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203721052U (en) * | 2014-01-25 | 2014-07-16 | 崔爱国 | Classroom interaction teaching system for ideological and political theory course |
| CN104661297A (en) * | 2015-02-15 | 2015-05-27 | 西安电子科技大学 | Multi-user and orthogonal power division multiple access method and device |
| CN104882037A (en) * | 2015-06-02 | 2015-09-02 | 阔地教育科技有限公司 | Live-recorded broadcast interaction classroom system |
| CN206075594U (en) * | 2016-07-07 | 2017-04-05 | 瑞胜科信息（深圳）有限公司 | Based on recorded broadcast and the distance-learning class system of interaction |
-
2018
- 2018-03-09 CN CN201810195586.XA patent/CN108366417A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203721052U (en) * | 2014-01-25 | 2014-07-16 | 崔爱国 | Classroom interaction teaching system for ideological and political theory course |
| CN104661297A (en) * | 2015-02-15 | 2015-05-27 | 西安电子科技大学 | Multi-user and orthogonal power division multiple access method and device |
| CN104882037A (en) * | 2015-06-02 | 2015-09-02 | 阔地教育科技有限公司 | Live-recorded broadcast interaction classroom system |
| CN206075594U (en) * | 2016-07-07 | 2017-04-05 | 瑞胜科信息（深圳）有限公司 | Based on recorded broadcast and the distance-learning class system of interaction |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180803 |
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| RJ01 | Rejection of invention patent application after publication |