CN108492648A - A kind of remote online teaching student's state determines method and system - Google Patents
A kind of remote online teaching student's state determines method and system Download PDFInfo
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Abstract
The present invention discloses a kind of remote online teaching student's state and determines method and system.This method includes：Obtain student's eyes coordinates that eye-tracking instrument presses predeterminated frequency acquisition；According to the eyes coordinates and it is corresponding acquisition the moment calculate student's eyes watch attentively duration and pan duration；Watch duration attentively and the pan duration determines that student is in absent-minded state, irritated state or conscientiously pays attention to the class state according to described.The method and system of the present invention, can assisted teacher understand the on-line study state of student more fully hereinafter.
Description
Technical field
The present invention relates to remote online teaching fields, and method is determined more particularly to a kind of remote online teaching student's state
And system.
Background technology
Under the support of the technologies such as internet, computer/mobile communication terminal, live chat software systems, pass through structure
The mode of multi-user's real-time online interaction group solves the problems, such as middle and primary schools under severe weather conditions " suspend classes and do not drop out of school ".But
Due to the variation of teaching environment, constraint of interaction technique condition etc., the classroom interaction between Faculty and Students still seems insufficient,
Especially teacher is difficult to the real-time classroom learning state of students '.
The mode that teacher understands the classroom learning state of student at present is mostly to show to own on the computer display screen of teacher
The real-time video of the student of on-line study observes the learning state of student by video, however the display screen size of teacher is limited,
Teacher at school when energy it is limited, can not fully understand the learning state of each student.
Invention content
The object of the present invention is to provide a kind of remote online teaching student's states to determine method and system, being capable of assisted teacher
The on-line study state of student is understood more fully hereinafter.
To achieve the above object, the present invention provides following schemes：
A kind of remote online teaching student's state determines method, including：
Obtain student's eyes coordinates that eye-tracking instrument presses predeterminated frequency acquisition；
According to the eyes coordinates and it is corresponding acquisition the moment calculate student's eyes watch attentively duration and pan duration；
Watch duration attentively and the pan duration determines that student is in absent-minded state, irritated state or conscientiously pays attention to the class according to described
State.
Optionally, the student's eyes coordinates for obtaining eye-tracking instrument and pressing predeterminated frequency acquisition, specifically include：
Obtain the initial time eyes coordinates of the student of classroom start time eye-tracking instrument acquisition；Each eye-tracking instrument
A corresponding student, each eye-tracking instrument are arranged at the front of corresponding student；
Obtain the current time eyes coordinates for the student that eye-tracking instrument is acquired in real time by predeterminated frequency.
Optionally, described to calculate watching attentively for student's eyes with the corresponding acquisition moment according to the eyes coordinates and duration and sweep
Apparent time is long, specifically includes：
The current opposite initial time eye movement of student is calculated according to current time eyes coordinates and initial time eyes coordinates
Distance；
The current opposite last moment eye movement of student is calculated according to current time eyes coordinates and last moment eyes coordinates
Distance；
Judge that currently whether opposite initial time eye movement distance is less than eye movement apart from lower limit, obtains the first judging result；
If first judging result indicates that currently opposite initial time eye movement distance is less than eye movement apart from lower limit, upper
One data collection interval of increase is as current fixation duration on the basis of the last moment that one moment obtained watches duration attentively；
A length of 0 when watching attentively of initial time；
If first judging result indicates that currently opposite initial time eye movement distance is greater than or equal to the eye movement distance
Current fixation duration is then set to 0 by lower limit；
Judge that currently whether eye movement distance of opposite last moment is more than eye movement apart from the upper limit, obtains the second judging result；
If second judging result indicates that currently eye movement distance of opposite last moment is more than eye movement apart from the upper limit, upper
Increase a data collection interval as current glance duration on the basis of the last moment pan duration that one moment obtained；
If second judging result indicates that currently eye movement distance of opposite last moment is less than or equal to the eye movement distance
Current glance duration is then set to 0 by the upper limit.
Optionally, watch duration described in the basis attentively and the pan duration determines that student is in absent-minded state, irritated shape
State conscientiously pays attention to the class state, specifically includes：
Judge whether the current fixation duration exceeds to preset and watch duration attentively, obtains third judging result；The default note
Apparent time length is more than 0；
If the third judging result indicates that current fixation duration is greater than or equal to described preset and watches duration attentively, it is determined that learn
It is raw to be in absent-minded state；
If the third judging result indicates that current fixation duration is less than described preset and watches duration attentively, judge described current
Duration is swept whether beyond default pan duration, obtains the 4th judging result；The default pan duration is more than 0；
If the 4th judging result indicates that current glance duration is greater than or equal to the default pan duration, it is determined that learn
It is raw to be in irritated state；
If the 4th judging result indicates that current glance duration is less than the default pan duration, it is determined that student is in
Conscientiously pay attention to the class state.
Optionally, it is described acquisition classroom start time eye-tracking instrument acquisition student initial time eyes coordinates it
Before, further include：
The eye-tracking instrument is calibrated.
The invention also discloses a kind of remote online teaching student's State determined systems, including：
Acquisition module, the student's eyes coordinates acquired by predeterminated frequency for obtaining eye-tracking instrument；
Eye movement duration calculation module, the note for calculating student's eyes according to the eyes coordinates and corresponding acquisition moment
Apparent time is long and sweeps duration；
State determining module, for watch duration attentively according to and the pan duration determine student be in absent-minded state,
Irritated state conscientiously pays attention to the class state.
Optionally, the acquisition module, specifically includes：
Initial coordinate acquiring unit, the initial time eye of the student for obtaining classroom start time eye-tracking instrument acquisition
Eyeball coordinate；Each eye-tracking instrument corresponds to a student, and each eye-tracking instrument is arranged at the front of corresponding student；
Changing coordinates acquiring unit, the current time for obtaining the student that eye-tracking instrument is acquired in real time by predeterminated frequency
Eyes coordinates.
Optionally, the eye movement duration calculation module, specifically includes：
First metrics calculation unit, for calculating student's according to current time eyes coordinates and initial time eyes coordinates
Current opposite initial time eye movement distance；
Second distance computing unit, for calculating student's according to current time eyes coordinates and last moment eyes coordinates
Current opposite last moment eye movement distance；
First judging unit is obtained for judging whether current opposite initial time eye movement distance is less than eye movement apart from lower limit
To the first judging result；
Duration superpositing unit is watched attentively, if indicating that currently opposite initial time eye movement is apart from small for first judging result
In eye movement apart from lower limit, then increase a data acquisition time on the basis of last moment obtained in last moment watches duration attentively
Interval is used as current fixation duration；A length of 0 when watching attentively of initial time；
Duration reset cell is watched attentively, if indicating that currently opposite initial time eye movement distance is big for first judging result
In or equal to the eye movement apart from lower limit, then current fixation duration is set to 0；
Second judgment unit is obtained for judging whether current opposite last moment eye movement distance is more than eye movement apart from the upper limit
To the second judging result；
Duration superpositing unit is swept, if indicating that currently eye movement distance of opposite last moment is big for second judging result
In eye movement apart from the upper limit, then the last moment obtained in last moment increases a data acquisition time on the basis of sweeping duration
Interval is used as current glance duration；
Duration unit again is swept, if indicating that currently opposite last moment eye movement is apart from small for second judging result
In or equal to the eye movement apart from the upper limit, then current glance duration is set to 0.
Optionally, the state determining module, specifically includes：
Third judging unit watches duration attentively for judging whether the current fixation duration exceeds to preset, obtains third and sentence
Disconnected result；Described preset watches duration attentively more than 0；
Absent-minded status determining unit, if it is described to indicate that current fixation duration is greater than or equal to for the third judging result
It is default to watch duration attentively, it is determined that student is in absent-minded state；
4th judging unit, if for the third judging result indicate current fixation duration be less than it is described it is default watch attentively when
It is long, then judge that the current glance duration whether beyond default pan duration, obtains the 4th judging result；When the default pan
It is long to be more than 0；
Irritated status determining unit, if it is described to indicate that current glance duration is greater than or equal to for the 4th judging result
Default pan duration, it is determined that student is in irritated state；
Status determining unit is conscientiously paid attention to the class, if it is described pre- to indicate that current glance duration is less than for the 4th judging result
If sweeping duration, it is determined that student, which is in, conscientiously pays attention to the class state.
Optionally, which further includes：
Calibration module, for being calibrated to the eye-tracking instrument.
According to specific embodiment provided by the invention, the invention discloses following technique effects：The present invention by eye movement with
Track instrument acquires eye movement data, judges the whether long-term motionless or long term frequent rotation of eyes, to analyze student be in absent-minded state,
Irritated state conscientiously pays attention to the class state, realizes the real-time monitoring to student's learning state, more complete so as to assisted teacher
Understand to face the on-line study state of student.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the dress that remote online of the present invention teaching student's state determines on-line study device used by embodiment of the method
Set structure chart；
Fig. 2 is the method flow diagram that remote online of the present invention teaching student's state determines embodiment of the method；
Fig. 3, which determines for remote online of the present invention teaching student's state in embodiment of the method, watches duration and pan duration meter attentively
Calculate method flow diagram；
Fig. 4 is the side that remote online of the present invention teaching student's state determines student's state determining procedure in embodiment of the method
Method flow chart；
Fig. 5 is the system construction drawing of remote online of the present invention teaching student's State determined system.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of remote online teaching student's states to determine method and system, being capable of assisted teacher
The on-line study state of student is understood more fully hereinafter.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is the dress that remote online of the present invention teaching student's state determines on-line study device used by embodiment of the method
Set structure chart.
Referring to Fig. 1, which includes personal computer, eye-tracking instrument, the teaching meter with camera function
Calculation machine.The quantity of the personal computer and the eye-tracking instrument is multiple；Each personal computer corresponds to a student,
The input terminal of each personal computer is all connected with an eye-tracking instrument, and multiple personal computers are by network and with camera shooting
The training computer of function connects；The training computer with camera function is the computer that teacher uses, for religion
The content of courses of teacher carries out captured in real-time and is sent in each personal computer.Each eye-tracking instrument is arranged in corresponding
Raw front is directed at the face of student.Each personal computer has built-in microphone or access external microphone wind, Xue Shengtong
It crosses and supports the live chat software systems of Multiuser interaction are watched to listen to giving lessons in real time for teacher.Each eye in teaching process
The data of acquisition are sent in corresponding personal computer by motion tracking instrument, and personal computer judges student according to the data of acquisition
Learning state, and learning state is uploaded in the training computer with camera function and is checked for teacher.
Before carrying out on-line study, teacher needed time of online course, content, estimated through channels such as internets
The curriculum informations such as course hours, teacher are announced.Teacher side and student side need to make needs before course starts
On-line study device connects, and ensures that linking Internet is normal and unobstructed.After opening on-line study device, teacher
End and student side are required to open microphone, the determining predeterminated frequency of setting and calibration eye-tracking instrument.Wherein predeterminated frequency f is general
It is arranged between 100Hz~200Hz.
Fig. 2 is the method flow diagram that remote online of the present invention teaching student's state determines embodiment of the method.
Referring to Fig. 2, remote online teaching student's state determines method, including：
Step 201：Obtain student's eyes coordinates that eye-tracking instrument presses predeterminated frequency acquisition.It specifically includes：
Obtain the initial time eyes coordinates of the student of classroom start time eye-tracking instrument acquisition；Each eye-tracking instrument
A corresponding student, each eye-tracking instrument are arranged at the front of corresponding student；It obtains eye-tracking instrument and presses predeterminated frequency f
The current time eyes coordinates of the student acquired in real time.
Since each moment acquires eyes coordinates, the eye movement behavioral data d of student can be obtained.By taking student 1 as an example,
The eye movement behavioral data of the student 1 then obtained is expressed as
Wherein d1For the eye movement behavioral data of student 1, tsFor initial time, x1(ts)、
Respectively in moment ts、When student 1 abscissa of the pupil in two dimensional surface；y1(ts)、Respectively in moment ts、When student 1 pupil it is flat in two dimension
Ordinate in face.
Step 202：Student eyes, which are calculated, according to the eyes coordinates and corresponding acquisition moment watches duration and pan attentively
Duration.
Fig. 3, which determines for remote online of the present invention teaching student's state in embodiment of the method, watches duration and pan duration meter attentively
Calculate method flow diagram.
Referring to Fig. 3, the detailed process of numerology life eyes watched duration attentively and sweep duration is in the step 202：
Step 2021：The current relatively initial of student is calculated according to current time eyes coordinates and initial time eyes coordinates
Moment eye movement distance.
By taking student 1 as an example：
If current time isMoment, then currently opposite initial time eye movement distance calculation formula is：
If current time isMoment, then currently opposite initial time eye movement distance calculation formula is：
Wherein i >=2.
Step 2022：Current relatively upper the one of student is calculated according to current time eyes coordinates and last moment eyes coordinates
Moment eye movement distance；
By taking student 1 as an example：
If current time isMoment, then currently opposite last moment eye movement distance calculation formula is：
If current time isMoment, then currently opposite last moment eye movement distance calculation formula is：
Wherein i >=
2。
Step 2023：Judge currently whether opposite initial time eye movement distance is less than eye movement apart from lower limit εl, obtain first
Judging result；
Step 2024：If first judging result indicates that currently opposite initial time eye movement distance is less than under eye movement distance
Limit increases a data collection interval as current on the basis of the last moment then obtained in last moment watches duration attentively
Watch duration attentively；A length of 0 when watching attentively of initial time.
Step 2025：If first judging result indicates that currently opposite initial time eye movement distance is greater than or equal to described
Current fixation duration is then set to 0 by eye movement apart from lower limit.
Step 2024 and step 2025 are described in detail by taking student 1 as an example：
T is carved at the beginningsWhen, watch duration g attentively1(ts)=0.
If current time isMoment, whenWhen, current time it is a length of when watching attentivelyWhenWhen, current time it is a length of when watching attentively
If current time isMoment, whenWhen, then current time watch duration attentivelyWhenAndWhen, then current time watch duration attentivelyWhenAndWhen, then current time watch duration attentivelyWhereinForMoment watches duration attentively.
Step 2026：Judge currently whether eye movement distance of opposite last moment is more than eye movement apart from upper limit εh, obtain second
Judging result；
Step 2027：If second judging result indicates that currently eye movement distance of opposite last moment is more than eye movement apart from upper
Limit, the then last moment obtained in last moment increase a data collection interval as current on the basis of sweeping duration
Sweep duration；
Step 2028：If second judging result indicates that currently eye movement distance of opposite last moment is less than or equal to described
Current glance duration is then set to 0 by eye movement apart from the upper limit.
Step 2027 and step 2028 are described in detail by taking student 1 as an example：
T is carved at the beginningsWhen, sweep duration m1(ts)=0.
If current time isMoment, whenWhen, when pan at current time, is a length ofWhenWhen, when pan at current time, is a length of
If current time isMoment, whenWhen, the pan duration at current timeWhenAndWhen, the pan duration at current timeWhenAndWhen, the pan duration at current time
Step 203：According to it is described watch duration attentively and the pan duration determine student be in absent-minded state, irritated state or
Conscientiously pay attention to the class state.
Fig. 4 is the side that remote online of the present invention teaching student's state determines student's state determining procedure in embodiment of the method
Method flow chart.
Referring to Fig. 4, watches duration attentively according in the step 203 and the pan duration determines that student is in absent-minded shape
State, irritated state conscientiously pay attention to the class state, specifically include：
Step 2031：Judge whether the current fixation duration exceeds to preset and watch duration attentively, obtains third judging result；Institute
It states to preset and watches duration attentively more than 0；It is described that default to watch duration attentively can be 3 minutes.
Step 2032：If it is described default when watching attentively that the third judging result indicates that current fixation duration is greater than or equal to
It is long, it is determined that student is in absent-minded state；
Step 2033：If the third judging result indicates that current fixation duration is less than described preset and watches duration attentively, sentence
Whether the current glance duration that breaks obtains fourth judging result beyond default pan duration；The default pan duration is more than
0；The default pan duration can be 3 minutes.
Step 2034：If the 4th judging result indicates that current glance duration is greater than or equal to the default pan
It is long, it is determined that student is in irritated state；
Step 2035：If the 4th judging result indicates that current glance duration is less than the default pan duration, really
Determine student be in conscientiously pay attention to the class state.
After determining student's state, upload in the training computer with camera function；It is in absent-minded shape when there is student
When state or irritated state, the information of student is corresponded in the display screen display of the training computer with camera function, such as will
The status bar of the student is shown in red and forward display, and teacher is reminded to put question to the student, and student passes through microphone
It answers, teacher can remind student's attention learning state according to situation of answering, to improve interactive teaching and learning.
Fig. 5 is the system construction drawing of remote online of the present invention teaching student's State determined system.
Referring to Fig. 5, which imparts knowledge to students student's State determined system, including：
Calibration module 501, for being calibrated to the eye-tracking instrument.
Acquisition module 502, the student's eyes coordinates acquired by predeterminated frequency for obtaining eye-tracking instrument；
Eye movement duration calculation module 503, for calculating student's eyes according to the eyes coordinates and corresponding acquisition moment
Watch attentively duration and pan duration；
State determining module 504, for watching duration attentively and the pan duration determines that student is in absent-minded shape according to
State, irritated state conscientiously pay attention to the class state.
The acquisition module 502, specifically includes：
Initial coordinate acquiring unit, the initial time eye of the student for obtaining classroom start time eye-tracking instrument acquisition
Eyeball coordinate；Each eye-tracking instrument corresponds to a student, and each eye-tracking instrument is arranged at the front of corresponding student；
Changing coordinates acquiring unit, the current time for obtaining the student that eye-tracking instrument is acquired in real time by predeterminated frequency
Eyes coordinates.
The eye movement duration calculation module 503, specifically includes：
First metrics calculation unit, for calculating student's according to current time eyes coordinates and initial time eyes coordinates
Current opposite initial time eye movement distance；
Second distance computing unit, for calculating student's according to current time eyes coordinates and last moment eyes coordinates
Current opposite last moment eye movement distance；
First judging unit is obtained for judging whether current opposite initial time eye movement distance is less than eye movement apart from lower limit
To the first judging result；
Duration superpositing unit is watched attentively, if indicating that currently opposite initial time eye movement is apart from small for first judging result
In eye movement apart from lower limit, then increase a data acquisition time on the basis of last moment obtained in last moment watches duration attentively
Interval is used as current fixation duration；A length of 0 when watching attentively of initial time；
Duration reset cell is watched attentively, if indicating that currently opposite initial time eye movement distance is big for first judging result
In or equal to the eye movement apart from lower limit, then current fixation duration is set to 0；
Second judgment unit is obtained for judging whether current opposite last moment eye movement distance is more than eye movement apart from the upper limit
To the second judging result；
Duration superpositing unit is swept, if indicating that currently eye movement distance of opposite last moment is big for second judging result
In eye movement apart from the upper limit, then the last moment obtained in last moment increases a data acquisition time on the basis of sweeping duration
Interval is used as current glance duration；
Duration unit again is swept, if indicating that currently opposite last moment eye movement is apart from small for second judging result
In or equal to the eye movement apart from the upper limit, then current glance duration is set to 0.
The state determining module 504, specifically includes：
Third judging unit watches duration attentively for judging whether the current fixation duration exceeds to preset, obtains third and sentence
Disconnected result；Described preset watches duration attentively more than 0；
Absent-minded status determining unit, if it is described to indicate that current fixation duration is greater than or equal to for the third judging result
It is default to watch duration attentively, it is determined that student is in absent-minded state；
4th judging unit, if for the third judging result indicate current fixation duration be less than it is described it is default watch attentively when
It is long, then judge that the current glance duration whether beyond default pan duration, obtains the 4th judging result；When the default pan
It is long to be more than 0；
Irritated status determining unit, if it is described to indicate that current glance duration is greater than or equal to for the 4th judging result
Default pan duration, it is determined that student is in irritated state；
Status determining unit is conscientiously paid attention to the class, if it is described pre- to indicate that current glance duration is less than for the 4th judging result
If sweeping duration, it is determined that student, which is in, conscientiously pays attention to the class state.
The method and system of the present invention have the following technical effects：
(1) present invention acquires eye movement data by eye-tracking instrument, judges that the whether long-term motionless or long term frequent of eyes turns
It is dynamic, be in absent-minded state, agitation state to analyze student or conscientiously pay attention to the class state, realizes to the real-time of student's learning state
Monitoring, the on-line study state of student is understood so as to assisted teacher more fully hereinafter.
(2) starting point of interactive teaching and learning is the tradition in teacher asking questions, with face-to-face teaching organization's implementation process in the present invention
Teaching method is similar, must be positive woth no need to life of going to school, the learning state of itself can be done without student
Go out real-time, accurate assessment, teacher is made to have more initiative in interactive teaching and learning.
(3) the on-line study state for judging student in the present invention by analyzing the real-time eye movement data feature of student, is not necessarily to
Student possesses non-key frame with identical chance and checks that the video pictures of each student can be appreciated that each student's without teacher
Learning state, convenient and practical and operability are strong.
(4) eye movement data applied belongs to and can reflect the objective of individual cognition in real time and emotional state variation in the present invention
Data, enquirement opportunity and Object Selection decision that teacher makes according to the data be more accurate and science, is conducive to improve online
The classroom teaching effect of study.
For system disclosed in embodiment, since it is corresponded to the methods disclosed in the examples, so the ratio of description
Relatively simple, reference may be made to the description of the method.
Principle and implementation of the present invention are described for specific case used herein, and above example is said
The bright method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of remote online teaching student's state determines method, which is characterized in that including：
Obtain student's eyes coordinates that eye-tracking instrument presses predeterminated frequency acquisition；
According to the eyes coordinates and it is corresponding acquisition the moment calculate student's eyes watch attentively duration and pan duration；
Watch duration attentively and the pan duration determines that student is in absent-minded state, irritated state or conscientiously pays attention to the class shape according to described
State.
2. a kind of remote online teaching student's state according to claim 1 determines method, which is characterized in that the acquisition
Eye-tracking instrument presses student's eyes coordinates of predeterminated frequency acquisition, specifically includes：
Obtain the initial time eyes coordinates of the student of classroom start time eye-tracking instrument acquisition；Each eye-tracking instrument corresponds to
One student, each eye-tracking instrument are arranged at the front of corresponding student；
Obtain the current time eyes coordinates for the student that eye-tracking instrument is acquired in real time by predeterminated frequency.
3. a kind of remote online teaching student's state according to claim 2 determines method, which is characterized in that the basis
The eyes coordinates and it is corresponding acquisition the moment calculate student's eyes watch attentively duration and pan duration, specifically include：
The current opposite initial time eye movement distance of student is calculated according to current time eyes coordinates and initial time eyes coordinates；
The current opposite last moment eye movement distance of student is calculated according to current time eyes coordinates and last moment eyes coordinates；
Judge that currently whether opposite initial time eye movement distance is less than eye movement apart from lower limit, obtains the first judging result；
If first judging result indicates that currently opposite initial time eye movement distance was less than eye movement apart from lower limit, in upper a period of time
One data collection interval of increase is as current fixation duration on the basis of the last moment that quarter obtains watches duration attentively；Initially
A length of 0 when watching attentively of moment；
If first judging result indicates that currently opposite initial time eye movement distance is greater than or equal to the eye movement apart from lower limit,
Current fixation duration is then set to 0；
Judge that currently whether eye movement distance of opposite last moment is more than eye movement apart from the upper limit, obtains the second judging result；
If second judging result indicates that currently eye movement distance of opposite last moment was more than eye movement apart from the upper limit, in upper a period of time
One data collection interval of increase is as current glance duration on the basis of carving obtained last moment pan duration；
If second judging result indicates that currently eye movement distance of opposite last moment is less than or equal to the eye movement apart from the upper limit,
Current glance duration is then set to 0.
4. a kind of remote online teaching student's state according to claim 3 determines method, which is characterized in that the basis
It is described to watch duration attentively and the pan duration determines that student is in absent-minded state, irritated state or conscientiously pays attention to the class state, it is specific to wrap
It includes：
Judge whether the current fixation duration exceeds to preset and watch duration attentively, obtains third judging result；It is described default when watching attentively
It is long to be more than 0；
If the third judging result indicates that current fixation duration is greater than or equal to described preset and watches duration attentively, it is determined that students' affairs division
In absent-minded state；
If the third judging result indicates that current fixation duration is less than described preset and watches duration attentively, the current glance is judged
Whether duration obtains fourth judging result beyond default pan duration；The default pan duration is more than 0；
If the 4th judging result indicates that current glance duration is greater than or equal to the default pan duration, it is determined that students' affairs division
In irritated state；
If the 4th judging result indicates that current glance duration is less than the default pan duration, it is determined that student is in conscientious
Pay attention to the class state.
5. a kind of remote online teaching student's state according to claim 2 determines method, which is characterized in that obtained described
Before the initial time eyes coordinates for taking the student of classroom start time eye-tracking instrument acquisition, further include：
The eye-tracking instrument is calibrated.
Student's State determined system 6. a kind of remote online is imparted knowledge to students, which is characterized in that including：
Acquisition module, the student's eyes coordinates acquired by predeterminated frequency for obtaining eye-tracking instrument；
Eye movement duration calculation module, for calculating when watching attentively of student's eyes according to the eyes coordinates and corresponding acquisition moment
Long and pan duration；
State determining module, for watching duration attentively and the pan duration determines that student is in absent-minded state, agitation according to
State conscientiously pays attention to the class state.
Student's State determined system 7. a kind of remote online according to claim 6 is imparted knowledge to students, which is characterized in that the acquisition
Module specifically includes：
Initial coordinate acquiring unit is sat for obtaining the initial time eyes of student of classroom start time eye-tracking instrument acquisition
Mark；Each eye-tracking instrument corresponds to a student, and each eye-tracking instrument is arranged at the front of corresponding student；
Changing coordinates acquiring unit, the current time eyes for obtaining the student that eye-tracking instrument is acquired in real time by predeterminated frequency
Coordinate.
Student's State determined system 8. a kind of remote online according to claim 7 is imparted knowledge to students, which is characterized in that the eye movement
Duration calculation module, specifically includes：
First metrics calculation unit, for calculating the current of student according to current time eyes coordinates and initial time eyes coordinates
Opposite initial time eye movement distance；
Second distance computing unit, for calculating the current of student according to current time eyes coordinates and last moment eyes coordinates
Opposite last moment eye movement distance；
First judging unit, for judge current opposite initial time eye movement distance whether less than eye movement apart from lower limit, obtain the
One judging result；
Duration superpositing unit is watched attentively, if indicating that currently opposite initial time eye movement distance is less than eye for first judging result
It moves apart from lower limit, then increases a data collection interval on the basis of last moment obtained in last moment watches duration attentively
As current fixation duration；A length of 0 when watching attentively of initial time；
Watch duration reset cell attentively, if for first judging result indicate currently opposite initial time eye movement distance be more than or
Equal to the eye movement apart from lower limit, then current fixation duration is set to 0；
Second judgment unit obtains for judging whether current opposite last moment eye movement distance is more than eye movement apart from the upper limit
Two judging results；
Duration superpositing unit is swept, if indicating that currently eye movement distance of opposite last moment is more than eye for second judging result
It moves apart from the upper limit, then the last moment obtained in last moment increases a data collection interval on the basis of sweeping duration
As current glance duration；
Sweep duration unit again, if for second judging result indicate currently opposite last moment eye movement distance be less than or
Equal to the eye movement apart from the upper limit, then current glance duration is set to 0.
Student's State determined system 9. a kind of remote online according to claim 8 is imparted knowledge to students, which is characterized in that the state
Determining module specifically includes：
Third judging unit watches duration attentively for judging whether the current fixation duration exceeds to preset, obtains third and judge knot
Fruit；Described preset watches duration attentively more than 0；
Absent-minded status determining unit, if it is described default to indicate that current fixation duration is greater than or equal to for the third judging result
Watch duration attentively, it is determined that student is in absent-minded state；
4th judging unit, if indicating that current fixation duration is less than described preset and watches duration attentively for the third judging result,
Then judge that the current glance duration whether beyond default pan duration, obtains the 4th judging result；The default pan duration
More than 0；
Irritated status determining unit, if it is described default to indicate that current glance duration is greater than or equal to for the 4th judging result
Sweep duration, it is determined that student is in irritated state；
Status determining unit is conscientiously paid attention to the class, if indicating that current glance duration is less than described preset and sweeps for the 4th judging result
Apparent time is long, it is determined that student, which is in, conscientiously pays attention to the class state.
Student's State determined system 10. a kind of remote online according to claim 7 is imparted knowledge to students, which is characterized in that further include：
Calibration module, for being calibrated to the eye-tracking instrument.
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| CN109801517A (en) * | 2019-03-18 | 2019-05-24 | 重庆工业职业技术学院 | Accounting Course method and device |
| CN109816178A (en) * | 2019-02-21 | 2019-05-28 | 四川大学 | Psychological condition prediction technique, device and electronic equipment |
| CN110166839A (en) * | 2019-06-15 | 2019-08-23 | 韶关市启之信息技术有限公司 | A kind of method and system whether verifying video is watched |
| CN110276246A (en) * | 2019-05-09 | 2019-09-24 | 威比网络科技(上海)有限公司 | Course index detects alarm method, device, electronic equipment, storage medium |
| CN110516553A (en) * | 2019-07-31 | 2019-11-29 | 北京航空航天大学 | The monitoring method and device of working condition |
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| CN114971975A (en) * | 2022-07-31 | 2022-08-30 | 北京英华在线科技有限公司 | Learning abnormity prompting method and system for online education platform |
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