CN114554144A - Embedded live webcast video stream hardware system and method - Google Patents
Embedded live webcast video stream hardware system and method Download PDFInfo
- Publication number
- CN114554144A CN114554144A CN202210052261.2A CN202210052261A CN114554144A CN 114554144 A CN114554144 A CN 114554144A CN 202210052261 A CN202210052261 A CN 202210052261A CN 114554144 A CN114554144 A CN 114554144A
- Authority
- CN
- China
- Prior art keywords
- module
- acquisition unit
- student
- teacher
- analysis module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004458 analytical method Methods 0.000 claims abstract description 34
- 238000007405 data analysis Methods 0.000 claims abstract description 19
- 230000009471 action Effects 0.000 claims description 28
- 230000008447 perception Effects 0.000 claims description 16
- 230000033764 rhythmic process Effects 0.000 claims description 9
- 210000003128 head Anatomy 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 230000006399 behavior Effects 0.000 description 20
- 230000008569 process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000019771 cognition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000002747 voluntary effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000003542 behavioural effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
-
- 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
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
- H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/65—Control of camera operation in relation to power supply
- H04N23/651—Control of camera operation in relation to power supply for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Social Psychology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Electrically Operated Instructional Devices (AREA)
Abstract
The invention discloses an embedded live webcast video stream hardware system and a live webcast video stream hardware method, which comprise a video acquisition end, a data analysis module and an adjustment module, wherein the video acquisition end is used for acquiring multi-party video data through a webcam, the data analysis module is used for further analyzing according to the acquired video data, the adjustment module is used for adjusting equipment according to an analysis result, the data analysis module comprises a teacher behavior analysis module and a student behavior analysis module, the teacher behavior analysis module is used for analyzing the behavior characteristics of a teacher giving lessons, the student behavior analysis module is used for analyzing the behavior characteristics of students who are giving lessons, the teacher behavior analysis module comprises a touch sensing submodule, the student behavior analysis module comprises a gazing sensing submodule and a time recording submodule, and the invention, has the advantage of more comprehensive design.
Description
Technical Field
The invention relates to the technical field of network live broadcast, in particular to a hardware system and a method based on embedded network live broadcast video stream.
Background
The teaching method of the colleges and universities direct broadcasting public classes comprises direct broadcasting platform teaching, classroom recorded broadcasting teaching, classroom direct broadcasting teaching and the like; for teaching on a live broadcast platform, a teacher can give lessons only by equipment with audio and video input without entering a classroom, and the defects that a handwriting board is required to be externally connected, and the classroom atmosphere is insufficient are overcome; for recording and broadcasting teaching in a classroom, videos of teachers in class in the classroom are recorded, edited and uploaded, students can watch online at any time, and the defects that teaching contents need to be uploaded again after being updated; for live teaching in a classroom, a teacher takes lessons in the classroom, a network camera live broadcasts and pushes the live to a server in real time, students can take lessons online by accessing the server, and the disadvantage is that the teacher is difficult to interact with the students in the current equipment technology.
According to investigation, more people tend to live lecture in classrooms, because the mode can more comprehensively simulate the off-line lecture mode, a teacher can write on a blackboard, the students have strong recognition, but the current live lecture mode in classrooms suffers from equipment defects, and the problems that the teacher cannot interact with the students in real time, the video angle is single, the immersion is insufficient, the load capacity requirement on a server is high and the like exist.
Disclosure of Invention
The invention aims to provide a hardware system and a method based on embedded live webcast video stream, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a hardware system and method based on embedded live webcast video stream comprises a video acquisition end, a data analysis module and an adjustment module, wherein the video acquisition end is electrically connected with the data analysis module, the data analysis module is electrically connected with the adjustment module, the video acquisition end is used for acquiring multi-party video data through a webcam, the data analysis module is used for further analyzing according to the acquired video data, the adjustment module is used for adjusting equipment according to an analysis result, the data analysis module comprises a teacher behavior analysis module and a student behavior analysis module, the teacher behavior analysis module is electrically connected with the student behavior analysis module, the teacher behavior analysis module is used for analyzing the behavior characteristics of a teacher giving lessons, and the student behavior analysis module is used for analyzing the behavior characteristics of students who are giving lessons, teacher's action analysis module includes touch-control perception submodule piece, student's action analysis module is including gazing perception submodule piece, time record submodule piece, touch-control perception submodule piece is used for the perception teacher to appear the blackboard writing action, it is used for judging whether the student gazes the screen to according to gazing time judgement student's action, the time record submodule piece is used for recording the student and is absorbed in the duration.
According to the technical scheme, the video acquisition end comprises an acquisition unit I, an acquisition unit II and an acquisition unit III, the acquisition unit I is used for acquiring the whole video in a classroom, the acquisition unit II is used for acquiring blackboard writing and projection curtains, the acquisition unit III is used for acquiring the video of the actions of the limbs of a teacher, and the acquisition unit I, the acquisition unit II and the acquisition unit III are electrically connected.
According to the technical scheme, the adjusting module comprises a logic judging module, a collecting switching module and a display module, the logic judging module is electrically connected with the collecting switching module, the collecting switching module is electrically connected with the display module, the logic judging module is used for providing a logic judging signal, the collecting switching module is used for switching the collecting unit, and the display module is used for displaying the class pictures and providing feedback for teachers.
According to the technical scheme, the system and the method for realizing the hardware of the network live video stream based on the embedded mode comprise the following steps:
step S1: the acquisition unit I is arranged behind a classroom and can acquire the classroom at a wide angle, acquire the classroom attendance in a wide range, improve the cognition of students on the classroom environment, facilitate the self-arrangement in the classroom and bring more participation sense to the student network in class;
step S2: the second acquisition unit is arranged above the platform and is used for carrying out high-precision acquisition on the blackboard and the projection screen, the blackboard writing on the blackboard and the ppt content on the projection screen contain teaching knowledge points, a fixed camera with higher definition is required to be used, and the acquisition quality is ensured by automatically adjusting according to different objects considering that the diffuse reflection gain of the projection screen is different from that of the blackboard;
step S3: the third acquisition unit is arranged in the center of a classroom, is used for acquiring the behavior of a teaching teacher in real time, has an automatic focus following function, has teaching significance on the change of the expression, action and volume of the teacher during teaching activities, can further promote teaching rhythm, improve teaching quality, capture and acquire the expression and action of the teacher, and improve the enthusiasm and interestingness of students in class;
step S4: the watching sensing module is connected with a camera of student equipment, the screen display content is dynamically adjusted according to the watching position of a student, and when the student gives a class through live broadcasting, the display content of the student end can be adjusted in real time according to the class taking situation of a class in a classroom, so that the class taking experience of the student is improved;
step S5: the collection switching module controls the priority display of the video collection end through a control signal, the quality of network teaching is guaranteed, the video contents collected by different collection units are different, the collection switching module intelligently switches the collection units in order to guarantee rich contents and multiple angles in class, and when the current collection units collect, the residual collection units enter a dormant state, so that the resource waste is reduced, the class content is richer simultaneously, and the interest and class experience of students are improved.
According to the above technical solution, the step S3 further includes the following steps:
step S31: the touch sensing sub-module is arranged in the blackboard and the projection curtain, a control signal is sent out when a teacher explains the blackboard writing or PPT, the touch sensing sub-module is triggered to work when the teacher explains the blackboard writing or PPT, the control signal is sent out to the switching module, pictures of the blackboard and the projection curtain collected by the second collecting unit are arranged in a maximum occupation area, and the teaching efficiency is improved;
step S32: the logic judgment module analyzes the actions of the students in real time, and judges display time according to the actions of the students when the maximum proportion area is the blackboard and the PPT picture acquired by the acquisition unit II; when a teacher writes on a blackboard, the current maximum display picture area is a blackboard and a projection screen picture collected by the second collection unit, the student takes a head-down recording action at the moment, the watching perception submodule is interrupted by a short signal, when the time T when the student watches the display screen again is lower than a preset value, the layout of the display area is locked, and the layout of the display area is locked until the time T when the student watches the display screen is higher than the preset value.
According to the above technical solution, the step S4 further includes the following steps:
step S41: when a student carries out online class, eyes need to watch a display screen of the equipment, a watching sensing submodule judges whether the student is in a watching state or not through a camera of the equipment, and the watching screen of the student is regarded as a listening-to-talk state because the online live broadcast public class is a voluntary class;
step S42: after the class begins, the display screen is divided into blocks according to the proportion of 80%, 15% and 5%, and different contents are displayed at the same time; corresponding pictures are required to be displayed at different progresses in class, the display screen area is divided into three parts with different proportions, the acquisition picture with the highest priority is placed in the maximum part, and the acquisition pictures with the remaining priorities are placed in the rest of the display area at low resolution, so that class experience of students is improved;
step S43: the distribution condition of the pictures acquired by each current acquisition unit is sent to a teacher end in real time for the teacher to refer to; in the network teaching process, a teacher is difficult to communicate with students, the teaching quality is not high, the teacher can be referred by statistics of the distribution condition of the collected pictures in the display area, the teaching rhythm is convenient to adjust, and the teaching quality is improved.
According to the above technical solution, the step S43 further includes the following steps:
step S431: t is tiThe residence time of the acquisition unit i in the maximum proportion display area is shown;
step S432: according to each acquisition unitCalculating the distribution index H of the part by comparing the display staying time of the collected picture with the layout of the display screeni；
Step S433: the distribution index is fed back to the teacher end in real time, and the teacher adjusts the teaching rhythm by taking the distribution index as a reference. The distribution index of each part can reflect the class progress of students, the learning levels of different students are different, the learning progress is also different, and the distribution index can be calculated to give teaching feedback to teachers and adjust the teaching rhythm in time.
According to the above technical solution, in the step S432, the distribution index H of each partiThe calculation formula of (2) is as follows:
the distribution index of each part is determined by the area ratio on the display screen and the staying time of the acquisition units in the display screen subareas, the sum of the display time of the three acquisition units in the most-prior display area on the display screen is a set period, and the distribution condition of the acquisition units is reflected by the product of the area ratio of the single acquisition unit and the area ratio of the optimal display area.
According to the above technical solution, the step S5 further includes the following steps:
step S51: the gazing perception module sends an electric signal to the time recording module when sensing the gazing of the student, timing is started, when the student lowers the head to cause signal interruption, timing is started again after the perception signal is received next time, and the recorded time is T;
step S52: when the T has frequent zero clearing actions, locking the layout of a display picture; the frequent zero clearing action of T shows that the frequency of the student lowering and raising heads is high in this period of time, and the probability of note taking is high, so that the display layout needs to be locked;
step S53: when the value of T is larger than the set threshold value, the layout of the display picture is unlocked, and normal switching is started; after the value of T is greater than the set threshold value, the student watches the screen for a long time at the moment, and normal picture switching can be carried out without locking operation.
According to the technical scheme, the first acquisition unit, the second acquisition unit and the third acquisition unit of the video acquisition end work independently at the same time, so that stable picture switching is ensured, and the class attendance efficiency of students is improved.
Compared with the prior art, the invention has the following beneficial effects: in the invention, the raw materials are mixed,
(1) by arranging the plurality of video acquisition ends, different contents in a classroom are acquired, the real experience of a live classroom is restored, and the immersion of students is deeper;
(2) the data analysis module is arranged to analyze the behavior characteristics of teachers and students and provide basis for displaying switching logic;
(3) through being provided with display module, divide into the triplex with the display screen to according to every student's study progress accurate regulation, it is more intelligent to have a lesson, and efficiency is higher.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic block diagram of the system of the present invention;
fig. 2 is a schematic diagram of a display screen distribution.
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.
Referring to fig. 1-2, the present invention provides the following technical solutions: a hardware system and method based on embedded live webcast video stream comprises a video acquisition end, a data analysis module and an adjustment module, wherein the video acquisition end is electrically connected with the data analysis module, the data analysis module is electrically connected with the adjustment module, the video acquisition end is used for acquiring multi-party video data through a webcam, the data analysis module is used for further analyzing according to the acquired video data, the adjustment module is used for adjusting equipment according to an analysis result, the data analysis module comprises a teacher behavior analysis module and a student behavior analysis module, the teacher behavior analysis module is electrically connected with the student behavior analysis module, the teacher behavior analysis module is used for analyzing the behavior characteristics of a teacher giving lessons, the student behavior analysis module is used for analyzing the behavior characteristics of students who are giving lessons, the teacher behavior analysis module comprises a touch sensing sub-module, student's behavioral analysis module is including gazing perception submodule piece, time record submodule piece, and touch-control perception submodule piece is used for the perception teacher to appear the board writing action, and gazes the perception submodule piece and is used for judging whether the student gazes the screen to judge student's action according to gazing time, time record submodule piece is used for recording the student and is absorbed in the duration.
The video acquisition end comprises an acquisition unit I, an acquisition unit II and an acquisition unit III, wherein the acquisition unit I is used for acquiring the whole video in a classroom, the acquisition unit II is used for acquiring blackboard writing and a projection curtain, the acquisition unit III is used for acquiring the limb movement video of a teacher, and the acquisition unit I, the acquisition unit II and the acquisition unit III are electrically connected.
The adjusting module comprises a logic judging module, an acquisition switching module and a display module, the logic judging module is electrically connected with the acquisition switching module, the acquisition switching module is electrically connected with the display module, the logic judging module is used for providing a logic judging signal, the acquisition switching module is used for switching the acquisition unit, and the display module is used for displaying the pictures in class to provide feedback for the teacher.
A hardware system and method based on embedded network live video stream includes the following steps:
step S1: the acquisition unit I is arranged behind a classroom and can acquire the classroom at a wide angle, acquire the classroom attendance in a wide range, improve the cognition of students on the classroom environment, facilitate the self-arrangement in the classroom and bring more participation sense to the student network in class;
step S2: the second acquisition unit is arranged above the platform and is used for carrying out high-precision acquisition on the blackboard and the projection screen, the blackboard writing on the blackboard and the ppt content on the projection screen contain teaching knowledge points, a fixed camera with higher definition is required to be used, and the acquisition quality is ensured by automatically adjusting according to different objects considering that the diffuse reflection gain of the projection screen is different from that of the blackboard;
step S3: the third acquisition unit is arranged in the center of a classroom, is used for acquiring the behavior of a teaching teacher in real time, has an automatic focus following function, has teaching significance on the change of the expression, action and volume of the teacher during teaching activities, can further promote teaching rhythm, improve teaching quality, capture and acquire the expression and action of the teacher, and improve the enthusiasm and interestingness of students in class;
step S4: the watching sensing module is connected with a camera of student equipment, the screen display content is dynamically adjusted according to the watching position of a student, and when the student gives a class through live broadcasting, the display content of the student end can be adjusted in real time according to the class taking situation of a class in a classroom, so that the class taking experience of the student is improved;
step S5: the collection switching module controls the priority display of the video collection end through a control signal, the quality of network teaching is guaranteed, the video contents collected by different collection units are different, the collection switching module intelligently switches the collection units in order to guarantee rich contents and multiple angles in class, and when the current collection units collect, the residual collection units enter a dormant state, so that the resource waste is reduced, the class content is richer simultaneously, and the interest and class experience of students are improved.
Step S3 further includes the steps of:
step S31: the touch sensing sub-module is arranged in the blackboard and the projection curtain, a control signal is sent out when a teacher explains the blackboard writing or PPT, the touch sensing sub-module is triggered to work when the teacher explains the blackboard writing or PPT, the control signal is sent out to the switching module, pictures of the blackboard and the projection curtain collected by the second collecting unit are arranged in a maximum occupation area, and the teaching efficiency is improved;
step S32: the logic judgment module analyzes the action of the student in real time, and judges the display time according to the action of the student when the maximum occupation area is the blackboard and the PPT picture acquired by the acquisition unit II; when a teacher writes on a blackboard, the current maximum ratio area of the display picture is the picture of the blackboard and the projection screen collected by the collection unit II, at the moment, the student lowers the head to record the action, the watching perception submodule generates transient signal interruption, when the time T when the student watches the display screen again is lower than a preset value, the layout of the display area is locked, and the layout of the contact display area is locked until the time T when the student watches the display screen is higher than the preset value.
Step S4 further includes the steps of:
step S41: when a student carries out online class, eyes need to watch a display screen of the equipment, a watching sensing submodule judges whether the student is in a watching state or not through a camera of the equipment, and the watching screen of the student is regarded as a listening-to-talk state because the online live broadcast public class is a voluntary class;
step S42: after the class begins, the display screen is divided into blocks according to the proportion of 80%, 15% and 5%, and different contents are displayed at the same time; corresponding pictures are required to be displayed at different progresses in class, the display screen area is divided into three parts with different proportions, the acquisition picture with the highest priority is placed in the maximum part, and the acquisition pictures with the remaining priorities are placed in the rest of the display area at low resolution, so that class experience of students is improved;
step S43: the distribution condition of the pictures acquired by each current acquisition unit is sent to a teacher end in real time for the teacher to refer to; in the network teaching process, a teacher is difficult to communicate with students, the teaching quality is not high, the teacher can be referred by statistics of the distribution condition of the collected pictures in the display area, the teaching rhythm is convenient to adjust, and the teaching quality is improved.
Step S43 further includes the steps of:
step S431: t is tiThe residence time of the acquisition unit i in the maximum proportion display area is shown;
step S432: calculating the distribution index H of the part according to the display dwell time and the display screen layout ratio of the pictures acquired by each acquisition uniti；
Step S433: the distribution index is fed back to the teacher end in real time, and the teacher adjusts the teaching rhythm by taking the distribution index as a reference. The distribution index of each part can reflect the class progress of students, the learning levels of different students are different, the learning progress is also different, and the distribution index can be calculated to give teaching feedback to teachers and adjust the teaching rhythm in time.
In step S432, distribution index H of each portioniThe calculation formula of (2) is as follows:
the distribution index of each part is determined by the area ratio on the display screen and the stay time of the acquisition units in the subareas of the display screen, the sum of the display time of the three acquisition units in the most-prior display area on the display screen is a set period, and the distribution condition of the acquisition units is reflected by the product of the ratio of the single acquisition unit and the ratio of the optimal display area.
Step S5 further includes the steps of:
step S51: the gazing perception module sends an electric signal to the time recording module when sensing the gazing of the student, timing is started, when the student lowers the head to cause signal interruption, timing is started again after the perception signal is received next time, and the recorded time is T;
step S52: when the T has frequent zero clearing actions, locking the layout of a display picture; the frequent zero clearing action of T shows that the frequency of the student lowering and raising heads is high in this period of time, and the probability of note taking is high, so that the display layout needs to be locked;
step S53: when the value of T is larger than the set threshold value, the layout of the display picture is unlocked, and normal switching is started; after the value of T is greater than the set threshold value, the student watches the screen for a long time at the moment, and normal picture switching can be carried out without locking operation.
The first acquisition unit, the second acquisition unit and the third acquisition unit of the video acquisition end work independently at the same time, so that stable picture switching is ensured, and the class attendance efficiency of students is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A network live broadcast video stream hardware system and method based on embedded type comprises a video acquisition end, a data analysis module and an adjustment module, and is characterized in that: the video acquisition end is electrically connected with the data analysis module, the data analysis module is electrically connected with the adjustment module, the video acquisition end is used for acquiring multi-party video data through a network camera, the data analysis module is used for further analyzing according to the acquired video data, the adjustment module is used for adjusting equipment according to an analysis result, the data analysis module comprises a teacher behavior analysis module and a student behavior analysis module, the teacher behavior analysis module is electrically connected with the student behavior analysis module, the teacher behavior analysis module is used for analyzing the behavior characteristics of a teacher giving lessons, the student behavior analysis module is used for analyzing the behavior characteristics of students who are giving lessons, the teacher behavior analysis module comprises a touch sensing submodule, the student behavior analysis module comprises a gazing sensing submodule and a time recording submodule, the touch sensing submodule is used for sensing whether a teacher shows a writing behavior, the gazing sensing submodule is used for judging whether a student gazes at a screen and judging the behavior of the student according to gazing time, and the time recording submodule is used for recording the duration time of the student concentration.
2. The system and the method for realizing the hardware based on the embedded live webcast video stream according to the claim 1 are characterized in that: the video acquisition end comprises an acquisition unit I, an acquisition unit II and an acquisition unit III, wherein the acquisition unit I is used for acquiring integral videos in a classroom, the acquisition unit II is used for acquiring blackboard writing and projection curtains, the acquisition unit III is used for acquiring teacher limb action videos, and the acquisition unit I, the acquisition unit II and the acquisition unit III are electrically connected.
3. The system and the method for realizing the hardware based on the embedded live webcast video stream according to the claim 2 are characterized in that: the adjusting module comprises a logic judging module, a collecting and switching module and a display module, the logic judging module is electrically connected with the collecting and switching module, the collecting and switching module is electrically connected with the display module, the logic judging module is used for providing a logic judging signal, the collecting and switching module is used for switching the collecting unit, and the display module is used for displaying a class picture and providing feedback for a teacher.
4. The system and the method for realizing the hardware based on the embedded live webcast video stream according to the claim 3 are characterized in that: the system and the method for realizing the hardware of the network live video stream based on the embedded type comprise the following steps:
step S1: the acquisition unit I is arranged behind a classroom and can acquire the interior of the classroom at a wide angle;
step S2: the second acquisition unit is arranged above the platform and used for carrying out high-precision acquisition on the blackboard and the projection screen cloth;
step S3: the third acquisition unit is arranged in the center of a classroom, is used for acquiring the behavior of a teaching teacher in real time and has an automatic focus tracking function;
step S4: the watching sensing module is connected with a camera of the student equipment and dynamically adjusts the display content of the screen according to the watching position of the student;
step S5: the acquisition switching module controls the priority display of the video acquisition end through a control signal, and the quality of network teaching is ensured.
5. The system and the method for realizing the hardware based on the embedded live webcast video stream according to the claim 4 are characterized in that: the step S3 further includes the steps of:
step S31: the touch sensing sub-module is arranged in the blackboard and the projection screen and sends out a control signal when a teacher explains a blackboard book or PPT;
step S32: and the logic judgment module analyzes the action of the student in real time, and judges the display time according to the action of the student when the maximum occupation area is the blackboard and the PPT picture acquired by the acquisition unit II.
6. The system and the method for realizing the hardware based on the embedded live webcast video stream according to the claim 5 are characterized in that: the step S4 further includes the steps of:
step S41: when a student performs online class, eyes need to watch a display screen of the equipment, and a watching sensing submodule judges whether the student is in a watching state or not through a camera of the equipment;
step S42: after the class begins, the display screen is divided into blocks according to the proportion of 80%, 15% and 5%, and different contents are displayed at the same time;
step S43: and sending the distribution condition of the pictures acquired by each current acquisition unit to a teacher end in real time for the teacher to refer.
7. The system and the method for realizing the hardware based on the embedded live webcast video stream according to the claim 6 are characterized in that: the step S43 further includes the steps of:
step S431: t is tiThe residence time of the acquisition unit i in the maximum proportion display area is shown;
step S432: calculating the distribution index H of the part according to the display dwell time and the display screen layout ratio of the pictures acquired by each acquisition uniti；
Step S433: the distribution index is fed back to the teacher end in real time, and the teacher adjusts the teaching rhythm by taking the distribution index as a reference.
8. The system and method of claim 7 for hardwarzing live webcast video streams based on an embedded technology, wherein: in the step S432, the distribution index H of each partiThe calculation formula of (2) is as follows:
the distribution index of each part is determined by the area ratio on the display screen and the staying time of the acquisition units in the display screen subareas, the sum of the display time of the three acquisition units in the most-prior display area on the display screen is a set period, and the distribution condition of the acquisition units is reflected by the product of the area ratio of the single acquisition unit and the area ratio of the optimal display area.
9. The system and method of claim 8 for hardwarzing live webcast video streams based on embedded technology, wherein: the step S5 further includes the steps of:
step S51: the gazing perception module sends an electric signal to the time recording module when sensing the gazing of the student, timing is started, when the student lowers the head to cause signal interruption, timing is started again after the perception signal is received next time, and the recorded time is T;
step S52: when the T has frequent zero clearing actions, locking the layout of a display picture;
step S53: and when the value of T is larger than the set threshold value, the layout of the display screen is unlocked, and normal switching is started.
10. The system and the method for realizing the hardware based on the embedded live webcast video stream according to the claim 9 are characterized in that: the first acquisition unit, the second acquisition unit and the third acquisition unit of the video acquisition end work independently at the same time, so that stable picture switching is ensured, and the class attendance efficiency of students is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210052261.2A CN114554144B (en) | 2022-01-18 | 2022-01-18 | Network live video stream hardware system and method based on embedded type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210052261.2A CN114554144B (en) | 2022-01-18 | 2022-01-18 | Network live video stream hardware system and method based on embedded type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114554144A true CN114554144A (en) | 2022-05-27 |
| CN114554144B CN114554144B (en) | 2024-04-26 |
Family
ID=81671189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210052261.2A Active CN114554144B (en) | 2022-01-18 | 2022-01-18 | Network live video stream hardware system and method based on embedded type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114554144B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115985150A (en) * | 2022-11-14 | 2023-04-18 | 李红英 | Interactive processing system based on big data |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705639A (en) * | 2017-11-03 | 2018-02-16 | 合肥亚慕信息科技有限公司 | A kind of Online class caught based on face recognition puts question to answer system |
| WO2019095447A1 (en) * | 2017-11-17 | 2019-05-23 | 深圳市鹰硕技术有限公司 | Guided teaching method having remote assessment function |
| WO2019095446A1 (en) * | 2017-11-17 | 2019-05-23 | 深圳市鹰硕音频科技有限公司 | Following teaching system having speech evaluation function |
| CN111027865A (en) * | 2019-12-12 | 2020-04-17 | 山东大学 | Classroom teaching analysis and quality assessment system and method based on intelligent behavior and expression recognition |
| CN111182250A (en) * | 2019-11-29 | 2020-05-19 | 安徽文香信息技术有限公司 | Audio and video teaching recording and playing system and control method thereof |
| CN111709358A (en) * | 2020-06-14 | 2020-09-25 | 东南大学 | Teacher-student behavior analysis system based on classroom video |
| CN112419809A (en) * | 2020-11-09 | 2021-02-26 | 江苏创设未来教育发展有限公司 | Intelligent teaching monitoring system based on cloud data online education |
| US20210225186A1 (en) * | 2020-12-30 | 2021-07-22 | Central China Normal University | 5th-GENERATION (5G) INTERACTIVE DISTANCE DEDICATED TEACHING SYSTEM BASED ON HOLOGRAPHIC TERMINAL AND METHOD FOR OPERATING SAME |
| CN113936512A (en) * | 2021-12-17 | 2022-01-14 | 正方软件股份有限公司 | Remote teaching method and system for colleges and universities |
-
2022
- 2022-01-18 CN CN202210052261.2A patent/CN114554144B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705639A (en) * | 2017-11-03 | 2018-02-16 | 合肥亚慕信息科技有限公司 | A kind of Online class caught based on face recognition puts question to answer system |
| WO2019095447A1 (en) * | 2017-11-17 | 2019-05-23 | 深圳市鹰硕技术有限公司 | Guided teaching method having remote assessment function |
| WO2019095446A1 (en) * | 2017-11-17 | 2019-05-23 | 深圳市鹰硕音频科技有限公司 | Following teaching system having speech evaluation function |
| CN111182250A (en) * | 2019-11-29 | 2020-05-19 | 安徽文香信息技术有限公司 | Audio and video teaching recording and playing system and control method thereof |
| CN111027865A (en) * | 2019-12-12 | 2020-04-17 | 山东大学 | Classroom teaching analysis and quality assessment system and method based on intelligent behavior and expression recognition |
| CN111709358A (en) * | 2020-06-14 | 2020-09-25 | 东南大学 | Teacher-student behavior analysis system based on classroom video |
| CN112419809A (en) * | 2020-11-09 | 2021-02-26 | 江苏创设未来教育发展有限公司 | Intelligent teaching monitoring system based on cloud data online education |
| US20210225186A1 (en) * | 2020-12-30 | 2021-07-22 | Central China Normal University | 5th-GENERATION (5G) INTERACTIVE DISTANCE DEDICATED TEACHING SYSTEM BASED ON HOLOGRAPHIC TERMINAL AND METHOD FOR OPERATING SAME |
| CN113936512A (en) * | 2021-12-17 | 2022-01-14 | 正方软件股份有限公司 | Remote teaching method and system for colleges and universities |
Non-Patent Citations (3)
| Title |
|---|
| 仇云龙;邱正国;张卫;: "基于情境学习理论的网络学习环境设计", 软件导刊(教育技术), no. 05, 23 May 2012 (2012-05-23) * |
| 刘喆;苏新冰;杜炫杰;: "智慧教室环境下的数学课堂教学行为研究", 数学教育学报, no. 04, 15 August 2020 (2020-08-15) * |
| 唐秀忠;兰晓俐;陈洪磊;: "基于大数据的高校教学质量评价系统设计研究", 开封文化艺术职业学院学报, no. 02, 20 February 2020 (2020-02-20) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115985150A (en) * | 2022-11-14 | 2023-04-18 | 李红英 | Interactive processing system based on big data |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114554144B (en) | 2024-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107945592B (en) | Synchronous mutual-aid classroom teaching system | |
| CN109817041A (en) | Multifunction teaching system | |
| Gorissen et al. | Methodological triangulation of the students’ use of recorded lectures | |
| US20110123972A1 (en) | System for automatic production of lectures and presentations for live or on-demand publishing and sharing | |
| CN106791485A (en) | The changing method and device of video | |
| CN112765419B (en) | Interactive live broadcast classroom system | |
| CN107135333A (en) | A kind of teaching writing/playing system | |
| CN110364043A (en) | A kind of paper cloud intellectual education system and application method | |
| CN111610862A (en) | Online teaching mode switching method based on eye movement signal | |
| CN111369408A (en) | Hospital home intern teaching management system and method | |
| CN202948595U (en) | Touch type intelligent desk teaching system | |
| CN114554144A (en) | Embedded live webcast video stream hardware system and method | |
| CN108766074A (en) | Remote audio-video interaction is given lessons implementation method, equipment and terminal | |
| CN112862267B (en) | Intelligent teaching platform and interactive system thereof | |
| CN112634096A (en) | Classroom management method and system based on intelligent blackboard | |
| KR102590186B1 (en) | Online learning system with improved interaction between instructor and student | |
| CN111681142A (en) | Method, system, equipment and storage medium based on education video virtual teaching | |
| CN114936952A (en) | Digital education internet learning system | |
| CN209993139U (en) | Multifunctional equipment for teaching management | |
| Dickson et al. | Automatic capture and presentation creation from multimedia lectures | |
| CN209343559U (en) | A kind of connection classroom system | |
| Wagner | Television video-tape systems for off-campus education: A cost analysis of SURGE | |
| Parlakkilic | Bridging the gap with distance education students: Telepresence | |
| CN112289102A (en) | Efficient network teaching method | |
| CN112270264A (en) | Multi-party interactive teaching system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |