Background technology
How to improve classroom efficiency, be the eternal themes of education activities.And wherein the very important point, be exactly teacher can in real time students ' to the comprehension degree of the content that it is taught, and then the content that adjustment is lectured.
But, in a lot of situations in reality, teacher understands the current state of student without any means substantially, such as on the classroom of university, faced by teacher is the classroom of hundreds of people, basic not too many interactive between teachers and students, due to distant with student of teacher, teacher also can not accomplish the state being understood student on classroom by the facial expression of observing student, so in this large lectures, the more just one-side instruction of teacher, student understands how many to telling about content on earth, whether catch up with teaching progress on earth and become unknown completely, so just cause a lot of classmate because do not catch up with classroom progress, and spirit is sneaked away, do the activity irrelevant with classroom instruction.
Present bone conduction earphone is very ripe, can accomplish, while voice signal is transmitted in cleaning, not block ears, also just at all can not stop that ear obtains external sound normally.
The actions such as the eye motion analytical algorithm based on video analysis also reaches its maturity, and can accomplish real-time follow-up eye motion completely, grasps eye motion, the special exercise of such as nictation and eyeball.
Summary of the invention
The present invention is directed to the proposition of above problem, and the statistical analysis system of a kind of application aware degree system of development, have:
Student terminal and teacher's terminal;
Described student terminal comprises:
The wireless communication unit I be connected with teacher's terminal wireless communication;
The earphone be connected with described wireless communication unit I radio communication, the voice signal that teacher's terminal sends is conveyed to student and
Video analysis unit, after earphone passes on confirmation voice to student, gathering the current acknowledgement state to lecturing content aware degree of student, generating cognition degree result of determination, and this analysis result is sent it back teacher's terminal by wireless communication unit I;
Described teacher's terminal comprises:
The wireless communication unit II be connected with the wireless communication unit I radio communication in each student terminal;
Store the teaching notes storage unit in the classroom of office coaching content;
Store multiple confirmation voice voice memory unit and
CPU (central processing unit), according to the time of setting or according to teaching process, is transferred the confirmation voice that store in voice memory unit and is sent to the wireless communication unit I of each student terminal by wireless communication unit II; Receive the cognition degree analysis result that in student terminal, video analysis unit generates, generate current classroom student to the cognition degree Statistical Analysis Report lecturing content.
Described video analysis unit has: the camera gathering student's eye motion; Receive student's eye moving image of camera collection, analyze and show that student's cognition degree confirms the processing module of result, this processing module is for detecting the number of winks of student.
Described earphone is bone conduction earphone, and this earphone also has a radio receiving unit, receives the confirmation voice transmitted through the wireless communication unit I of student terminal by teacher's terminal; These voice are 30 decibels when the final perception of people's hearing; The voice that described confirmation voice packet correctly reflects confirmation containing prompting student, these voice of student's perception, by the confirmation of cognition degree information of having blinked to described camera.
The CPU (central processing unit) of described teacher's terminal sent voice by described wireless communication unit I to described student terminal every 5 minutes.
The teaching notes of storage are divided into multiple content module with certain independence by the teaching notes storage unit in described teacher's terminal: after having served as a teacher the instruction of a certain content module, and control CPU (central processing unit) is transferred the confirmation language stored in voice memory unit and sent confirmation voice to student terminal.
Described earphone is when wearing, and receiver is fixed on the cheek in auricle front.
Described student terminal also has confirmation unit, and described confirmation unit has skin pricktest detecting unit, after student completes cognition degree confirmation, gathers the skin pricktest change of student's finger, judges the authenticity that described student confirms current lecture contents cognition degree.
Described teacher's terminal also has voice recognition unit: in teaching notes unit, be provided with multiple trigger condition statement sending confirmation language, when the voice served as a teacher are consistent with described trigger condition after voice recognition unit identification, described teacher's terminal sends to each terminal and confirms voice.
Owing to have employed technique scheme, the statistical analysis system of a kind of application aware degree system provided by the invention, by the period or can lecture content, send the voice messaging confirming cognition degree, and confirm relevant information by the mode of nictation to student.Facilitate teacher's students ' to the cognition degree situation of lecture contents, being specially adapted to university or the more teacher of number cannot the classroom of direct vision students' condition.
Embodiment
For making the object of embodiments of the invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear complete description is carried out to the technical scheme in the embodiment of the present invention:
As shown in Figure 1: a kind of statistical analysis system of application aware degree system, mainly comprises:
Student terminal: the cognition of lecturing content for teacher to each the student's timed sending on classroom confirms voice;
Teacher's terminal: adjust current lecture contents for teacher.
Described student terminal mainly comprises:
The wireless communication unit I be connected with teacher's terminal wireless communication,
The earphone be connected with described wireless communication unit I radio communication, the voice signal that teacher's terminal sends is conveyed to student and video analysis unit, after earphone passes on confirmation voice to student, gather the current acknowledgement state to lecturing content aware degree of student, generate cognition degree result of determination, and this analysis result is sent it back teacher's terminal by wireless communication unit I.
Described teacher's terminal mainly comprises:
The wireless communication unit II be connected with the wireless communication unit I radio communication in each student terminal; Store the teaching notes storage unit in the classroom of office coaching content; Store voice memory unit and the CPU (central processing unit) of multiple confirmation voice, according to the time of setting or according to teaching process, transfer the confirmation voice that store in voice memory unit and sent to the wireless communication unit I of each student terminal by wireless communication unit II; Receive the cognition degree analysis result that in student terminal, video analysis unit generates, generate current classroom student to the cognition degree Statistical Analysis Report lecturing content.
Described video analysis unit has: the camera gathering student's eye motion; Receive student's eye moving image of camera collection, analyze and show that student's cognition degree confirms the processing module of result, this processing module is for detecting the number of winks of student.
Analyze number of winks, with " blink detection and eye tracking ", computer utility, in Dec, 2006, the content of the 26th volume the 12nd phase is technical background.
In order to the voice can either passed on confirm, do not affect student's normal good hearing again, as a preferably embodiment: described earphone is bone conduction earphone, and this earphone also has a radio receiving unit, receives the confirmation voice transmitted through the wireless communication unit I of student terminal by teacher's terminal; These voice are 30 decibels when the final perception of people's hearing, and sound smaller when this decibel is in people's sensing range can not impact normal hearing.Meanwhile, if student is in the state such as stupefied of sneaking away, may listen to less than relevant voice, just cannot give a response, this situation does not understand the judgment basis of current instruction content yet as student.
Described earphone is when wearing, and receiver is fixed on the cheek in auricle front.Namely student's normal good hearing is not affected.
The voice that described confirmation voice packet correctly reflects confirmation containing prompting student, these voice of student's perception, by the confirmation of cognition degree information of having blinked to described camera.Confirm voice be with " you grasp the content just now told about? " " you catch up with the progress of teacher? " etc. similar voice, can convert repeatedly in a class, prevent from causing tired psychology to student.
As a preferably embodiment, the CPU (central processing unit) of described teacher's terminal sent voice by described wireless communication unit I to described student terminal every 5 minutes.Can 8 times be inquired in the classroom of 40 minutes.Too large puzzlement can not be caused to student, teacher can be helped again to understand the state of student's present cognitive degree more timely.
As another preferably embodiment, the teaching notes of storage are divided into multiple content module with certain independence by the teaching notes storage unit in described teacher's terminal: realize, by teacher, lecture content delimited into multiple relatively independent module, such as the explanation of an important formula, three parts can be divided into, 1.Formula is shifted onto, 2 formula checkings, 3.The calculating of application of formula.
After having served as a teacher the instruction of a certain content module, control CPU (central processing unit) is transferred the confirmation language stored in voice memory unit and is sent confirmation voice to student terminal.
Further, teacher's terminal is also provided with voice recognition unit: can be realized setting corresponding statement by teacher, after on classroom, teacher says relevant statement, voice recognition unit carries out match cognization, if the match is successful, then teacher's terminal sends the inquiry of corresponding cognition degree confirmation voice.
Such as when lecturing a certain formula, similar statements such as " this formula identity are complete " can be completed as the derivation of equation module trigger condition told about, after voice recognition unit completes coupling confirmation, can notify that teacher's terminal sends cognition degree and confirms voice.
Further, consider that blink detection may exist certain error, also may in video confirmation process, student unconscious nictation, it is really not statistical uncertainty to cause, and described student terminal also has confirmation unit, described confirmation unit has skin pricktest detecting unit, after student completes cognition degree confirmation, gather the skin pricktest change of student's finger, judge the authenticity that described student confirms current lecture contents cognition degree.
This sentences a lie detector as technical background.Finger is socketed skin electric inductor, and the principle detecting heart rate with Medical Instruments is similar, draws heartbeat rate of change, completes the second fruiting similar with the mechanism of detecting a lie and confirms.
After acquisition statistics, also there is the step generating statistics:
Step one: receive sample
Step 2: according to sample content, calculates required parameters of drawing a diagram further
Step 3: the result of calculation according to step 2 is drawn a diagram
When receiving sample, native system (being realized by SilverLight) provides a series of interface to external call, so host can be any one in form or webClient for its host.In the client, host's forms pass through Instance Name.System carries out Parameter transfer with mutual.And in the system of web exploitation, be pass ginseng with mutual with js script.The object done like this is the transplantability in order to improve native system assembly.
WEB terminal is called:
var slCtl=sender.getHost();
slCtl.Content.Chart.SetMapInfo({
charttype:myChartType,
TableName:tName
});
Form end calls:
Chart.ChartMain cm=new Chart。ChartMain();
cm.SetMapInfo(new Chart.Models.ChartInfo{chartType=Chart。ToolClass。ChartType.Piechart, TableName=" test chart A " });
The concrete analysis system of cognition degree is as follows:
First, cognition degree analysis needs two parts data.One is the subjectively expected value of user, and two is actual scores of user.Both subtract each other, and can draw the deviation of the expectation of actual conditions and user.When the data that analyzer receives are same title two groups of numerical value, analyzer just can think that this analysis is cognition degree analysis.
Analyzer can use actual score X-subjectively expected value Y, obtains cognitive Bias Z.
Maximal value Zn and the minimum value-Zn of Y-axis delimited according to the value of maximum absolute value in Z.And center line value is set to 0.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.