CN117057669A

CN117057669A - Teaching quality assessment method, device and system

Info

Publication number: CN117057669A
Application number: CN202311223461.0A
Authority: CN
Inventors: 金鑫; 周理孟; 贾云龙
Original assignee: Hangzhou Hikvision System Technology Co Ltd
Current assignee: Hangzhou Hikvision System Technology Co Ltd
Priority date: 2019-03-05
Filing date: 2019-03-05
Publication date: 2023-11-14
Also published as: CN111667128B; CN111667128A

Abstract

The application discloses a teaching quality assessment method, a teaching quality assessment device and a teaching quality assessment system, and belongs to the technical field of computers. The method comprises the following steps: detecting whether n evaluation conditions are met in the target teaching process according to at least one of images and voices of the target teaching process, wherein n is more than or equal to 1; when the target evaluation condition met in the target teaching process is determined, adding the grade corresponding to the target evaluation condition into a grade set of the target teaching process under the target evaluation condition; when the target teaching process meets the adjustment condition, adjusting a grade set of the target teaching process under at least one target evaluation condition; and determining the quality grade of the target teaching process according to the grade set of the target teaching process under all target evaluation conditions. The application solves the problem of lowest teaching quality evaluation efficiency, improves the teaching quality evaluation efficiency, and is used for teaching quality evaluation.

Description

Teaching quality assessment method, device and system

The application relates to a divisional application of a Chinese patent application with the application number of 201910165231.0 and the name of 'teaching quality assessment method, device and system' filed on the date of 2019 and 03 and 05.

Technical Field

The present application relates to the field of computer technologies, and in particular, to a method, an apparatus, and a system for evaluating teaching quality.

Background

With the increasing importance of people to education, the assessment of teaching quality is particularly important.

In the related art, after the teacher finishes teaching the classmates, each classmate needs to score the teaching quality on a designated evaluation device so that the evaluation device evaluates the teaching quality of the teacher according to the scoring of the teaching quality by the students.

However, it takes a long time for a plurality of students to score the teaching quality, so that the teaching quality evaluation efficiency is minimized.

Disclosure of Invention

The application provides a teaching quality assessment method, a device and a system, which can solve the problem of lowest teaching quality assessment efficiency, and the technical scheme is as follows:

in a first aspect, a method for evaluating teaching quality is provided, the method comprising:

detecting whether n evaluation conditions are met in the target teaching process according to at least one of images and voices of the target teaching process, wherein n is more than or equal to 1, and each evaluation condition has a corresponding grade;

when the target evaluation condition met in the target teaching process is determined, adding the grade corresponding to the target evaluation condition into a grade set of the target teaching process under the target evaluation condition;

When the target teaching process meets the adjustment condition, adjusting a grade set of the target teaching process under at least one target evaluation condition;

and determining the quality grade of the target teaching process according to the grade set of the target teaching process under all target evaluation conditions.

Optionally, the n evaluation conditions include: at least one type of evaluation condition, when the target teaching process meets the adjustment condition, adjusting the level set of the target teaching process under at least one target evaluation condition, including:

and when any target evaluation condition is the evaluation condition corresponding to the highest grade in the class of evaluation conditions to which the target evaluation condition belongs, and the number of elements in the grade set of the target teaching process under any target evaluation condition is greater than an element number threshold value, degrading the grade in the grade set of the target teaching process under any target evaluation condition.

When the target teaching process meets a first condition and the duty ratio of the teaching process meeting the first condition in the target teaching process and related teaching processes is larger than the first duty ratio, upgrading the grade in the grade set of the target teaching process under the first type evaluation condition;

when any teaching process meets the first condition, the evaluation condition met in any teaching process in the first type of evaluation condition is: the first type of evaluation conditions correspond to non-highest-level evaluation conditions, the first type of evaluation conditions are any type of evaluation conditions in the at least one type of evaluation conditions, and the target teaching process and the related teaching process are related to the same subject or are carried out in the same time period.

Optionally, the n evaluation conditions include: at least one type of evaluation condition, when the target teaching process meets the adjustment condition, adjusting the grade of the target teaching process under the at least one evaluation condition met by the target teaching process, wherein the evaluation condition comprises the following steps:

when the target teaching process meets a second condition and the duty ratio of the teaching process meeting the second condition in the target teaching process and related teaching processes is larger than a second duty ratio, degrading the grades in the grade set of the target teaching process under a second type evaluation condition;

When any teaching process meets the second condition, the evaluation condition met in any teaching process in the second class of evaluation conditions is: the second type of evaluation conditions correspond to non-lowest-level evaluation conditions, and the second type of evaluation conditions are any type of evaluation conditions in the at least one type of evaluation conditions; the target teaching process and the related teaching process thereof are related to the same subject or are carried out in the same time period.

Optionally, the n evaluation conditions include: at least one class of evaluation conditions, the method further comprising:

after the grade set of the target teaching process under any target evaluation condition is adjusted, if the increasing speed of the number of grades in the target grade set is greater than a speed threshold, degrading the grades in the target grade set;

wherein the target class set comprises: and the target teaching process is a grade set under at least one highest evaluation condition, wherein the highest evaluation condition is an evaluation condition corresponding to the highest grade in one class of evaluation conditions to which any target evaluation condition belongs.

Optionally, before said detecting whether n evaluation conditions are met in the target teaching process, the method further comprises:

Acquiring target scene information of the target teaching process;

determining a target evaluation condition group corresponding to the target scene information in the m evaluation condition groups according to the scene information corresponding to the m evaluation condition groups, wherein m is more than 1;

and acquiring the n evaluation conditions from the target evaluation condition group.

Optionally, the n evaluation conditions include: at least one of teacher class evaluation conditions, student class evaluation conditions and interaction class evaluation conditions,

the teacher class evaluation condition is related to teacher lectures, the student class evaluation condition is related to student listening and speaking, and the interaction class evaluation condition is related to interaction between teacher and students.

Optionally, determining the quality level of the target teaching process according to the level set of the target teaching process under all target evaluation conditions includes:

determining the teacher class level of the target teaching process according to the class set of the target teaching process under the teacher class evaluation condition satisfied by the target teaching process;

determining the class grade of the target teaching process according to the class set of the target teaching process under the class evaluation condition of the students which the target teaching process meets;

determining the interactive class level of the target teaching process according to the class set of the target teaching process under the interactive class evaluation condition satisfied by the target teaching process;

Repeating the teacher class for X times, the student class for Y times, and the interaction class for Z times to obtain a quality class set, wherein Z is more than Y and more than X is more than 0;

and determining the quality grade of the target teaching process according to the quality grade set.

Optionally, the levels corresponding to the n evaluation conditions include: the first grade, the second grade and the third grade which are sequentially reduced, and determining the quality grade of the target teaching process according to the quality grade set comprises the following steps:

determining a number difference between a first level and a third level in the quality level set;

when the number difference value is larger than a first number threshold value, determining the quality grade of the target teaching process as the first grade;

when the number difference value is smaller than or equal to the first number threshold value and larger than a second number threshold value, determining the quality level of the target teaching process as the second level, wherein the first number threshold value is larger than the second number threshold value;

and when the number difference value is smaller than or equal to the second number threshold value, determining the quality grade of the target teaching process as the third grade.

Optionally, the levels corresponding to the n evaluation conditions include: a first level, a second level and a third level which decrease in sequence,

Determining a teacher class level of the target teaching process, comprising: determining the grade in the grade set of the target teaching process under the teacher evaluation condition which is satisfied by the target teaching process as the teacher grade;

determining a class level of the student of the target teaching process, comprising: determining the grade in the grade set of the target teaching process under the student class assessment condition which is met by the target teaching process as the student class grade;

determining the interactive class level of the target teaching process comprises the following steps: if the third condition and the fourth condition are met, determining the interaction class grade as the first grade; if the third condition or the fourth condition is met, determining that the interaction class level is the second level; if the third condition and the fourth condition are not met, determining that the interaction class grade is the third grade;

wherein the third condition includes: the number of the first grades in the grade set of the target teaching process under the interaction type evaluation condition which is met by the target teaching process is larger than the first number, and the fourth condition comprises: the number of the third grades in the grade set of the target teaching process under the interaction type evaluation condition which is met by the target teaching process is smaller than the second number, and the first number is larger than the second number.

Optionally, the levels corresponding to the n evaluation conditions include: a first level, a second level, and a third level that decrease in sequence, the teacher class assessment condition including at least one of the following assessment conditions,

first evaluation conditions corresponding to the third level: the using frequency of the teacher to the target object is larger than the first frequency, and the moving frequency of the teacher between the platform area and the pavement area in the classroom is larger than the second frequency; wherein the target object comprises: blackboard and demonstration manuscript;

a second evaluation condition corresponding to the first level: the first evaluation condition is not met, and the number of marking moments when a teacher has smile expression in the teaching process is larger than the first number, wherein the volume of the teacher at the marking moment in the teaching process is larger than the average volume of the teacher before the marking moment, and the volume difference between the teacher and the average volume of the teacher is larger than or equal to a volume threshold;

third evaluation conditions corresponding to the second level: the first evaluation condition is not satisfied, and the number of marking moments of the teacher with smile expression in the teaching process is smaller than or equal to the first number;

fourth evaluation conditions corresponding to the third level: the first evaluation condition is not satisfied, and the number of marking moments of the teacher with anger expression in the teaching process is larger than the second number;

A fifth evaluation condition corresponding to the second level: the first evaluation condition is not satisfied, and the number of marking moments in which the teacher has an anger expression in the teaching process is less than or equal to the second number.

Optionally, the levels corresponding to the n evaluation conditions include: a first level, a second level, and a third level that decrease in order, the student type assessment conditions including at least one of the following assessment conditions,

evaluation conditions corresponding to the third level: the first ratio of the face to students in a designated area in the teaching room is smaller than or equal to the first ratio, and the duration of the consistency rate of the face orientation of the students in the designated probability range is longer than the first duration; wherein the specified area includes: at least one of the blackboard area, the presentation area and the teacher area;

evaluation conditions corresponding to the first level: the first ratio is greater than a second ratio, and the second ratio of a student having a target expression is less than or equal to a third ratio, the target expression comprising: at least one expression of stress, tension, and serious, the second ratio being greater than or equal to the first ratio;

evaluation conditions corresponding to the second level: the first ratio is greater than the second ratio, the second ratio is greater than the third ratio, and is less than or equal to a fourth ratio;

Evaluation conditions corresponding to the third level: the first duty cycle is greater than the second ratio and the second duty cycle is greater than the fourth ratio.

Optionally, the levels corresponding to the n evaluation conditions include: a first level, a second level, and a third level that decrease in sequence, the interactive class assessment conditions including at least one of the following assessment conditions,

evaluation conditions corresponding to the first level: the method comprises the steps that a designated student answer keyword appears in voice of a teacher within a designated time period after the appearance of the question keyword, and in an evaluation time period after the designated student answer indicated by the designated student answer keyword, other people except the designated student in the classroom evaluate the answer of the designated student;

evaluation conditions corresponding to the third level: and the voice of the teacher presents the answer keywords of the appointed students within the appointed time after the question keywords appear, and the other people do not evaluate the answers of the appointed students within the evaluation time after the answers of the appointed students.

Evaluation conditions corresponding to the first level: in the question asking time before the third ratio is larger than the fifth ratio, question asking keywords appear in the voice of the teacher, and when the third ratio is larger than the fifth ratio, the voice volume of the student is smaller than or equal to the second volume; the third duty ratio is the duty ratio of students, the face orientation of which cannot be determined based on the images of the teaching process;

evaluation conditions corresponding to the third level: in the question asking time before the third ratio is larger than the fifth ratio, no question asking keyword appears in the voice of the teacher, and when the third ratio is larger than the fifth ratio, the volume of the voice of the student meets the volume condition; the volume conditions include: the duration time length of the voice of the student is smaller than or equal to the second volume and is longer than the second duration time, or the cumulative time length of the voice of the student is smaller than or equal to the second volume and is longer than the cumulative duration time threshold.

evaluation conditions corresponding to the first level: a first event occurs in a first response time after a question keyword occurs in the voice of a teacher, the duration of the first event is less than or equal to a third time, and the number of first grades in a grade set of the teaching process under an interactive evaluation condition is less than a third number, wherein the first event comprises: at least one of reading and writing by students;

Evaluation conditions corresponding to the second level: a first event occurs in a first response time after a question keyword occurs in the voice of a teacher, the duration of the first event is longer than a third time and smaller than or equal to a fourth time, and the number of second grades in a grade set of the teaching process under the interactive evaluation condition is smaller than a fourth number;

evaluation conditions corresponding to the third level: the method comprises the steps that a first event occurs in a first response time after a question keyword occurs in a voice of a teacher, the duration time of the first event is longer than a fourth time, and the number of third grades in a grade set in the teaching process under the interactive evaluation condition is smaller than a fifth number.

Optionally, the levels corresponding to the n evaluation conditions include: the interactive type evaluation condition comprises at least one of the following evaluation conditions;

evaluation conditions corresponding to the first level: a first event occurs in a first response time period after a question keyword occurs in the voice of a teacher, and a third duty ratio is smaller than or equal to a sixth ratio, wherein the third duty ratio is a duty ratio of students whose face orientation cannot be determined based on images of the teaching process, and the first event includes: at least one of reading and writing by students;

Evaluation conditions corresponding to the second level: the first event appears in the first response time after the question keyword appears in the voice of the teacher, the third ratio is larger than the sixth ratio and smaller than or equal to the seventh ratio, and the seventh ratio is larger than the sixth ratio;

evaluation conditions corresponding to the third level: the first event occurs within a first response time period after the question key occurs in the teacher's voice, and the third duty ratio is greater than the seventh ratio.

evaluation conditions corresponding to the first level: in a second response time after the questioning keywords appear in the voice of the teacher, the hand lifting rate of the students is larger than the probability threshold;

evaluation conditions corresponding to the second level: in a second response time after the questioning keywords appear in the voice of the teacher, the hand lifting rate of the students is smaller than or equal to the probability threshold;

evaluation conditions corresponding to the first level: the number of occurrences of the second event is greater than the specified number, the second event comprising: the students lift hands in a second response time after the questioning keywords appear in the voice of the teacher;

Evaluation conditions corresponding to the first level: in a third response time after the question key words appear in the voice of the teacher, students enter the platform area.

evaluation conditions corresponding to the first level: a questioning keyword appears in the voice of the student;

evaluation conditions corresponding to the first level: the student question keyword is guided to appear in the teacher's voice within the guiding time period before the question keyword appears in the student's voice.

In a second aspect, there is provided a teaching quality assessment apparatus, comprising:

the detection module is used for detecting whether n evaluation conditions are met in the target teaching process according to at least one of images and voices of the target teaching process, n is more than or equal to 1, and each evaluation condition has a corresponding grade;

the processing module is used for adding the grade corresponding to the target evaluation condition into the grade set of the target teaching process under the target evaluation condition when the target evaluation condition met in the target teaching process is determined;

The adjusting module is used for adjusting the grade set of the target teaching process under at least one target evaluation condition when the target teaching process meets the adjusting condition;

and the first determining module is used for determining the quality grade of the target teaching process according to the grade set of the target teaching process under all target evaluation conditions.

Optionally, the n evaluation conditions include: at least one type of evaluation condition, the adjustment module is used for:

Optionally, the n evaluation conditions include: at least one type of evaluation condition, the teaching quality evaluation device further comprises:

the degradation module is used for degrading the grades in the target grade set if the increasing speed of the number of grades in the target grade set is greater than a speed threshold after the grade set of the target teaching process under any target evaluation condition is adjusted;

Optionally, the teaching quality assessment device further includes:

the first acquisition module is used for acquiring target scene information of the target teaching process;

the second determining module is used for determining a target evaluation condition group corresponding to the target scene information in the m evaluation condition groups according to the scene information corresponding to the m evaluation condition groups, wherein m is more than 1;

and the second acquisition module is used for acquiring the n evaluation conditions from the target evaluation condition group.

Optionally, the first determining module includes:

the first determining unit is used for determining the teacher class level of the target teaching process according to the class set of the target teaching process under the teacher class evaluation condition satisfied by the target teaching process;

the second determining unit is used for determining the class grade of the target teaching process according to the class set of the target teaching process under the class evaluation condition of the students which the target teaching process meets;

the third determining unit is used for determining the interactive class level of the target teaching process according to the class set of the target teaching process under the interactive class evaluation condition which is satisfied by the target teaching process;

the processing unit is used for repeating the teacher class for X times, the student class for Y times and the interaction class for Z times to obtain a quality class set, wherein Z is more than Y and more than X is more than 0;

and the fourth determining unit is used for determining the quality grade of the target teaching process according to the quality grade set.

Optionally, the levels corresponding to the n evaluation conditions include: the first level, the second level and the third level which decrease in order, the fourth determining unit is configured to:

the first determining unit is configured to: determining the grade in the grade set of the target teaching process under the teacher evaluation condition which is satisfied by the target teaching process as the teacher grade;

the second determining unit is configured to: determining the grade in the grade set of the target teaching process under the student class assessment condition which is met by the target teaching process as the student class grade;

the third determining unit is configured to: if the third condition and the fourth condition are met, determining the interaction class grade as the first grade; if the third condition or the fourth condition is met, determining that the interaction class level is the second level; if the third condition and the fourth condition are not met, determining that the interaction class grade is the third grade;

In a third aspect, a teaching quality assessment system is provided, the teaching quality assessment system comprising: at least one of an image acquisition device and a voice acquisition device, and the teaching quality evaluation device of the second aspect,

when the teaching quality evaluation system comprises the image acquisition device, the teaching quality evaluation device is used for acquiring an image of a target teaching process through the image acquisition device;

when the teaching quality evaluation system comprises the voice acquisition device, the teaching quality evaluation device is used for acquiring voice of a target teaching process through the voice acquisition device.

In a fourth aspect, a computer device is provided, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory communicate with each other via the bus; a memory for storing a computer program; and a processor, configured to execute a program stored in the memory, and implement the method described in the first aspect.

In a fifth aspect, a computer readable storage medium is provided, in which a computer program is stored, which computer program, when being executed by a processor, implements the method according to the first aspect.

The technical scheme provided by the application has the beneficial effects that at least:

according to the teaching quality evaluation method provided by the embodiment of the application, the teaching quality evaluation device can determine the grade set of the target teaching process under the evaluation condition according to at least one of the image and the voice of the target teaching process, and can adjust the grade set of the target teaching process under the evaluation condition according to the adjustment condition. Finally, the teaching quality assessment device can analyze the grade set of the target teaching process under the assessment condition so as to determine the quality grade of the teaching process. Therefore, the teaching quality is not required to be determined according to the scoring of students on specific assessment equipment, so that the teaching quality assessment process is simplified, and the teaching quality assessment efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a teaching quality evaluation system according to an embodiment of the present application;

FIG. 2 is a flowchart of a teaching quality assessment method according to an embodiment of the present application;

FIG. 3 is a flowchart of another teaching quality assessment method according to an embodiment of the present application;

fig. 4 is a schematic diagram of a face image according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a teaching quality assessment device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an obtaining unit according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of an evaluation unit according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

In order to analyze the quality of a teaching process more conveniently, the embodiment of the application provides a teaching quality assessment method, a teaching quality assessment device and a teaching quality assessment system. Fig. 1 is a schematic structural diagram of a teaching quality assessment system 0 according to an embodiment of the present application, as shown in fig. 1, the teaching quality assessment system 0 may include: at least one of the image capturing device 10 and the voice capturing device 20, and the teaching quality evaluation device 30.

The teaching quality evaluation system in fig. 1 also includes: the number of the image acquisition devices 10 and the number of the voice acquisition devices 20 are 1 as an example. Alternatively, the number of the image capturing devices 10 may be other numbers, such as 5, etc., and the number of the voice capturing devices 20 may be other numbers, such as 10, etc., which is not limited in the embodiment of the present invention. The image capturing mechanism 10 may be a camera and the voice capturing mechanism 20 may be a pickup. The teaching quality evaluation device 30 may be a computer, a server, or a server cluster.

The image acquisition device 10 and the voice acquisition device 20 can be arranged in a classroom, and the teaching quality assessment device 30 can be in communication connection with the image acquisition device 10 and the voice acquisition device 20. The tutorial quality assessment device 30 can collect images of the target tutorial process through the image collection device 10, and can collect voice of the target tutorial process through the voice collection device 20.

Fig. 2 is a flowchart of a teaching quality evaluation method according to an embodiment of the present invention. As shown in fig. 2, the teaching quality evaluation method may be used for the teaching quality evaluation device 30 in fig. 2, and the teaching quality evaluation method may include:

Step 201, detecting whether n evaluation conditions are met in the target teaching process according to at least one of images and voices of the target teaching process, wherein n is more than or equal to 1, and each evaluation condition has a corresponding grade.

And 202, when the target evaluation condition met in the target teaching process is determined, adding the grade corresponding to the target evaluation condition into a grade set of the target teaching process under the target evaluation condition.

And 203, when the target teaching process meets the adjustment condition, adjusting the grade set of the target teaching process under at least one target evaluation condition.

And 204, determining the quality grade of the target teaching process according to the grade set of the target teaching process under all target evaluation conditions.

In summary, in the teaching quality evaluation method provided by the embodiment of the present invention, the teaching quality evaluation device can determine the level set of the target teaching process under the evaluation condition according to at least one of the information of the image and the voice of the target teaching process, and can adjust the level set of the target teaching process under the evaluation condition according to the adjustment condition. Finally, the teaching quality assessment device can analyze the grade set of the target teaching process under the assessment condition so as to determine the quality grade of the teaching process. Therefore, the teaching quality is not required to be determined according to the scoring of students on specific assessment equipment, so that the teaching quality assessment process is simplified, and the teaching quality assessment efficiency is improved.

Fig. 3 is a flowchart of another teaching quality assessment method according to an embodiment of the present invention, which may be used in the teaching quality assessment apparatus 30 in fig. 1. As shown in fig. 3, the teaching quality evaluation method may include:

step 301, obtaining target scene information of a target teaching process.

The target teaching process is any teaching process to be evaluated. Because the influence degree of different teaching scenes on the teaching quality is different, when the teaching quality evaluation device evaluates the teaching quality of the target teaching process, the target scene information of the target teaching process needs to be acquired first.

For example, the teaching quality evaluation device may collect the target scene information before the target teaching process starts and/or during the target teaching process. For example, the target scene information may include: the time period during which the target teaching process is performed (e.g., the time period during which meal is just consumed), subjects related to the target teaching process (i.e., subjects for teaching of the target teaching process, such as mathematics, physics, etc.), subjects related to the last teaching process of the target teaching process (e.g., sports), etc.

Step 302, determining a target evaluation condition set corresponding to target scene information in m evaluation condition sets according to the scene information corresponding to the m evaluation condition sets, wherein m is more than 1.

After the target scene information is collected, the teaching quality evaluation device can compare the target scene information with the scene information corresponding to the m evaluation condition groups so as to determine the target evaluation condition group corresponding to the target scene information.

For example, each evaluation condition set may correspond to a plurality of scene information, and in step 302, the teaching quality evaluation device may compare the target scene information with the scene information corresponding to each evaluation condition set to determine whether the scene information corresponding to each evaluation condition set includes the target scene information. When determining that the scene information corresponding to a certain evaluation condition group comprises the target scene information, the teaching quality evaluation device can determine that the evaluation condition group is the target evaluation condition group corresponding to the target scene information.

It should be noted that the evaluation conditions in different evaluation condition sets among the m evaluation condition sets are different. Illustratively, the context information includes: when the subjects related to the previous teaching process are music, since the students are more vigorous after the previous teaching process, the evaluation conditions in the evaluation condition set corresponding to the scene information may be: evaluation conditions which can be met by teaching processes with higher teaching quality and evaluation conditions which cannot be met by teaching processes with lower teaching quality. It can be seen that the evaluation conditions in the set of evaluation conditions corresponding to the scene information are stricter. Also illustratively, the context information includes: when the subject related to the previous teaching process is sports, since the student is tired after the previous teaching process, the evaluation conditions in the evaluation condition set corresponding to the scene information may be: evaluation conditions which can be satisfied by both teaching processes with higher teaching quality and lower teaching quality. It can be seen that the evaluation condition in the set of evaluation conditions corresponding to the scene information is relaxed.

Step 303, acquiring n evaluation conditions from the target evaluation condition group.

The set of target evaluation conditions may include at least one evaluation condition, and in step 303, the teaching quality evaluation device may acquire n evaluation conditions, n being equal to or greater than 1, from among the evaluation conditions in the set of target evaluation conditions. For example, all evaluation conditions or part of evaluation conditions in the target evaluation condition group are acquired as the above-mentioned n evaluation conditions.

Step 304, detecting whether n evaluation conditions are satisfied in the target teaching process according to at least one of the image and the voice of the target teaching process.

It should be noted that, in the embodiment of the present invention, at least one of the image and the voice of the target teaching process includes an image and a voice, and optionally, at least one of the image and the voice of the target teaching process may also include only an image or a voice, which is not limited in the embodiment of the present invention.

In the target teaching process, the teaching quality evaluation device may collect images of the target teaching process (e.g., images of teachers, images of students, and images of classrooms) through the image collection device 10 of fig. 1, and collect voices of the target teaching process (e.g., voices of teachers and voices of students) through the voice collection device 20 of fig. 1.

In step 304, the teaching quality evaluation apparatus may detect whether each of the n evaluation conditions acquired in step 303 is satisfied in the target teaching process based on at least one of the image and the voice of the target teaching process.

And 305, when the target evaluation condition met in the target teaching process is determined, adding the grade corresponding to the target evaluation condition into a grade set of the target teaching process under the target evaluation condition.

It should be noted that, in the embodiment of the present invention, each evaluation condition has a corresponding grade. When it is determined that the target evaluation condition of the n evaluation conditions is satisfied in the target teaching process, the teaching quality evaluation device may add the level corresponding to the target evaluation condition to the level set of the target teaching process under the target evaluation condition.

For example, when the grade corresponding to the target evaluation condition is a, and it is determined that the target evaluation condition is satisfied for the first time in the target teaching process, the teaching quality evaluation device may add a to the grade set of the target teaching process under the target evaluation condition, where the grade set may be: { A }. When it is determined that the target evaluation condition is satisfied for the second time in the target teaching process, the teaching quality evaluation device may add a to the level set of the target teaching process under the target evaluation condition, where the level set may be: { A, A }.

And 306, when the target teaching process meets the adjustment condition, adjusting the grade set of the target teaching process under at least one target evaluation condition.

In the embodiment of the invention, after the grade set under each target evaluation condition (namely, each satisfied evaluation condition in the target teaching process) of the target teaching process is determined, the teaching quality evaluation device can also adjust at least one grade set so as to enable the quality grade of the target teaching process determined based on the adjusted grade set to be more accurate.

Alternatively, the n evaluation conditions may include at least one type of evaluation condition. The above adjustment conditions may have various realizations, and the embodiments of the present invention will be illustrated by taking the following realizations as examples:

in a first implementation manner of the first aspect, the adjusting condition may include: the target evaluation condition is the evaluation condition corresponding to the highest grade in the class of evaluation conditions to which the target evaluation condition belongs, and the number of elements in the grade set of the target teaching process under the target evaluation condition is larger than the element number threshold value.

In step 306, the teaching quality evaluation device may determine a class of evaluation conditions to which each target evaluation condition belongs, and detect whether the target evaluation condition is the evaluation condition corresponding to the highest level among the classes of evaluation conditions to which the target evaluation condition belongs. When a certain target evaluation condition is the evaluation condition corresponding to the highest grade in the class of evaluation conditions to which the certain target evaluation condition belongs, the teaching quality evaluation device can also judge whether the number of elements in the grade set of the target teaching process under the target evaluation condition is greater than an element number threshold value. When any target evaluation condition is the evaluation condition corresponding to the highest grade in the class of evaluation conditions to which the target evaluation condition belongs, and the number of elements in the grade set of the target teaching process under any target evaluation condition is greater than the element number threshold, the condition that the target evaluation condition is normalized when the target teaching process is satisfied is indicated, and the teaching quality evaluation device can degrade the grade in the grade set of the target teaching process under any target evaluation condition.

For example, the level set of the original target teaching process under a certain target evaluation condition is: { A, A, A, A, A }, the teaching quality evaluation device may adjust the level set of the target teaching process under the certain target evaluation condition to be: { B, B, B, B }, wherein A is a higher level than B.

In a second aspect, in a second implementation manner of the adjustment condition, the adjustment condition may include: the target teaching process meets the first condition, and the duty ratio of the teaching process meeting the first condition in the target teaching process and the related teaching process is larger than the first duty ratio. When any teaching process meets the first condition, the evaluation condition which is met in any teaching process in the first type of evaluation condition is as follows: the first type of evaluation conditions correspond to non-highest-level evaluation conditions, the first type of evaluation conditions are any one of the at least one type of evaluation conditions, and the target teaching process and the related teaching process are related to the same subject or are carried out in the same time period.

In step 306, the teaching quality assessment device may determine the teaching process related to the target teaching process as the teaching process related to the target teaching process, wherein the teaching process is related to the same subject (e.g. all related to Chinese) or is performed in the same time period (e.g. all performed at 7 to 9 in the morning). Then, the teaching quality evaluation device needs to detect whether none of the evaluation conditions satisfied in the target teaching process in each type of evaluation conditions is the evaluation condition of the highest level corresponding to the type of evaluation conditions. When the teaching quality evaluation device determines that none of the evaluation conditions of a certain class of evaluation conditions which are satisfied in the target teaching process is the evaluation condition of the corresponding highest level in the class of evaluation conditions, the teaching quality evaluation device may determine that the target teaching process satisfies the first condition. Then, the teaching quality evaluation device may detect, for each relevant teaching process, whether the evaluation conditions that the evaluation conditions are satisfied in the relevant teaching process are not the evaluation conditions of the highest level corresponding to the evaluation conditions, so as to determine whether the relevant teaching process satisfies the first condition. When the target teaching process meets the first condition and the duty ratio of the teaching process meeting the first condition in the target teaching process and the related teaching process is larger than the first duty ratio, if the target teaching process and the related teaching process are related to the same subject, the difficulty of teaching the subject can be indicated to be higher, and if the target teaching process and the related teaching process are conducted in the same time period, the difficulty of teaching in the time period can be indicated to be higher. At this time, the teaching quality evaluation device may upgrade the level in the level set of the target teaching process under the first type of evaluation condition.

For example, the level set of the original target teaching process under the evaluation condition 1 in the first type of evaluation condition is: { B, B, B }, the set of grades for the target teaching process under evaluation condition 2 in the first type of evaluation conditions is: { C, C }. When determining that the target teaching process meets the adjustment condition in the second realizable mode, the teaching quality evaluation device can adjust the grade set of the target teaching process under the evaluation condition 1 in the first type of evaluation condition to be: { A, A, A }, adjust the level set of the target teaching process under evaluation condition 2 in the first type of evaluation condition to: { B, B }, wherein A is a higher grade than B and B is a higher grade than C.

In a third aspect, in a third implementation manner of the adjustment condition, the adjustment condition may include: the target teaching process meets a second condition, and the duty ratio of the teaching process meeting the second condition in the target teaching process and the related teaching process is larger than the second duty ratio. When any teaching process meets the second condition, the evaluation condition met in any teaching process in the second class of evaluation conditions is: the second type of evaluation conditions correspond to non-lowest-level evaluation conditions, and the second type of evaluation conditions are any type of evaluation conditions in at least one type of evaluation conditions; the target teaching process and the related teaching process are related to the same subject or are performed in the same time period.

In step 306, the teaching quality assessment device may determine the teaching process related to the target teaching process as the teaching process related to the target teaching process, wherein the teaching process is related to the same subject (e.g. all related to Chinese) or is performed in the same time period (e.g. all performed at 7 to 9 in the morning). Then, the teaching quality evaluation device needs to detect whether none of the evaluation conditions satisfied in the target teaching process in each type of evaluation conditions is the evaluation condition corresponding to the lowest level in the type of evaluation conditions. When the teaching quality evaluation device determines that none of the evaluation conditions of a certain class of evaluation conditions which are satisfied in the target teaching process is the evaluation condition of the corresponding lowest level in the class of evaluation conditions, the teaching quality evaluation device may determine that the target teaching process satisfies the second condition. Then, the teaching quality evaluation device may detect, for each relevant teaching process, whether the evaluation conditions that the evaluation conditions are satisfied in the relevant teaching process are all evaluation conditions that correspond to the lowest level in the evaluation conditions, so as to determine whether the relevant teaching process satisfies the second condition. When the target teaching process meets the second condition and the duty ratio of the teaching process meeting the second condition in the target teaching process and the related teaching process is larger than the second duty ratio, if the target teaching process and the related teaching process are related to the same subject, the difficulty of teaching the subject can be indicated to be higher, and if the target teaching process and the related teaching process are conducted in the same time period, the difficulty of teaching in the time period can be indicated to be higher. At this time, the teaching quality evaluation device may downgrade the grades in the grade set of the target teaching process under the second type of evaluation condition.

For example, the level set of the original target teaching process under the evaluation condition 3 in the second class of evaluation conditions is: { A, A, A }, the set of grades for the target teaching process under evaluation condition 4 in the second class of evaluation conditions is: { B }. When determining that the target teaching process meets the adjustment condition in the second realizable mode, the teaching quality evaluation device can adjust the grade set of the target teaching process under the evaluation condition 1 in the second type of evaluation condition to be: { B, B, B }, adjust the level set of the target teaching process under evaluation condition 2 in the second class of evaluation conditions to: { C }, wherein A is a higher level than B, and B is a higher level than C.

Optionally, the adjustment conditions in the embodiments of the present invention may also include adjustment conditions in at least two of the foregoing realizations. At this time, the teaching quality evaluation device may determine whether the target teaching process meets the adjustment conditions in the at least two realizable modes, respectively, and when determining that the target teaching process meets the adjustment conditions in one realizable mode, may adjust the level set of the target teaching process under the evaluation conditions by using a corresponding adjustment method.

Step 307, after adjusting the level set of the target teaching process under any target evaluation condition, if the increasing speed of the level number in the target level set is greater than the speed threshold, degrading the level in the target level set; wherein the target class set comprises: and the target teaching process is a grade set under at least one highest evaluation condition, wherein the highest evaluation condition is the evaluation condition corresponding to the highest grade in one class of evaluation conditions to which any target evaluation condition belongs.

After the teaching quality evaluation device adjusts the grade set of the target teaching process under any target evaluation condition, the teaching quality evaluation device can also determine that each evaluation condition corresponding to the highest grade in one class of evaluation conditions to which any target evaluation condition belongs is the highest evaluation condition, and determine the target grade set according to the grade set of the target teaching process under at least one highest evaluation condition (such as all highest evaluation conditions).

The teaching quality assessment device may also determine whether a rate of increase in the number of levels in the target level set is greater than a rate threshold. If the increasing speed of the number of the grades in the target grade set is larger than the speed threshold, the method indicates that the grade of the teaching process under the evaluation condition of the target evaluation condition is changed greatly after the grade set of the target teaching process under any target evaluation condition is adjusted. At this time, the teaching quality assessment device needs to lower the level in the target level set.

If the increasing speed of the number of the grades in the target grade set is smaller than or equal to the speed threshold, the method indicates that the grade of the teaching process under the evaluation condition of the target evaluation condition is not changed greatly after the grade set of the target teaching process under any target evaluation condition is adjusted. At this time, the teaching quality evaluation device does not need to adjust the level in the target level set.

Step 308, determining the quality grade of the target teaching process according to the grade set of the target teaching process under all target evaluation conditions.

The teaching quality evaluation device determines whether each evaluation condition is met in the target teaching process, obtains a grade set of the target teaching process under each target evaluation condition, and can determine the quality grade of the target teaching process according to the grade set of the target teaching process under the target evaluation conditions after the grade sets to be adjusted in the grade sets are adjusted.

Illustratively, the n evaluation conditions may include: teacher class evaluation conditions, student class evaluation conditions, and interaction class evaluation conditions. The teacher type evaluation conditions are related to teacher lectures, the student type evaluation conditions are related to student listening and speaking, and the interaction type evaluation conditions are related to interaction between teacher and students. In step 308, the teaching quality evaluation device may determine a class of the teacher of the target teaching process according to the class set of the target teaching process under the class evaluation condition of the teacher satisfied by the target teaching process; determining the class grade of the target teaching process according to the class set of the target teaching process under the class evaluation condition of the students which the target teaching process meets; and determining the interactive class grade of the target teaching process according to the grade set of the target teaching process under the interactive class evaluation condition which is satisfied by the target teaching process.

Wherein, the grades corresponding to the n evaluation conditions include: the first grade, the second grade and the third grade which are sequentially reduced, and the teaching quality evaluation device can determine the grade in the grade set of the target teaching process under the teacher evaluation condition which is satisfied by the target teaching process as the teacher grade; the teaching quality evaluation device may determine, as the class, the class of the class set of class evaluation conditions that the target teaching process satisfies. The teaching quality evaluation device may further determine whether a third condition and a fourth condition are satisfied according to a level set of the target teaching process under the interaction type evaluation condition satisfied by the target teaching process, where the third condition includes: the number of the first grades in the grade set of the target teaching process under the interaction type evaluation condition which is met by the target teaching process is larger than the first number, and the fourth condition comprises: the number of third grades in the grade set of the target teaching process under the interaction type evaluation condition which is met by the target teaching process is smaller than the second number, and the first number is larger than the second number. If the third condition and the fourth condition are met, the teaching quality assessment device can determine that the interaction class level is a first level; if the third condition or the fourth condition is met, the teaching quality assessment device can determine that the interaction class level is a second level; if the third condition and the fourth condition are not satisfied, the teaching quality evaluation device may determine that the interaction class level is the third level.

After determining the teacher class level, the student class level, and the interaction class level, the teaching quality assessment device may repeat the teacher class level X times, the student class level Y times, and the interaction class level Z times to obtain a quality class set, Z > Y > X > 0. Such as x=1, y=2, z=3. Because the interaction degree of teachers and students in the teaching process is higher in correlation with the teaching quality, the interactive class level can be repeated more times in the embodiment of the invention.

After the quality class set is determined, the teaching quality assessment device can determine the quality class of the target teaching process according to the quality class set. For example, the teaching quality assessment device may first determine a number difference between the first level and the third level in the quality level set. When the number difference is greater than a first number threshold (e.g., 3 or 4, etc.), the teaching quality assessment device may determine the quality level of the target teaching process as a first level. When the number difference is smaller than or equal to the first number threshold and larger than the second number threshold (such as 0 or 1, etc.), the teaching quality evaluation device determines the quality level of the target teaching process as a second level, and the first number threshold is larger than the second number threshold. When the number difference is less than or equal to the second number threshold, the teaching quality assessment device may determine that the quality level of the target teaching process is a third level.

Through the analysis of the grade set of the target teaching process under the teacher type evaluation condition, the student type evaluation condition and the interaction type evaluation condition, the quality grade of the target teaching process can be evaluated from multiple aspects, and the accuracy of teaching quality evaluation is improved.

It should be noted that, in the embodiment of the present invention, n evaluation conditions include a teacher evaluation condition, a student evaluation condition, and an interaction evaluation condition, alternatively, n evaluation conditions may also include: at least one of the teacher class assessment condition, the student class assessment condition and the interaction class assessment condition, for example, the n assessment conditions include: the teacher class evaluation condition and the student class evaluation condition are not limited in this embodiment of the present invention.

Further, step 304 will be explained below in terms of three aspects, i.e., teacher-based evaluation condition, student-based evaluation condition, and interaction-based evaluation condition, respectively.

In the first aspect, in step 304, according to at least one of the image and the voice of the target teaching process, when detecting whether the teacher evaluation condition is satisfied in the target teaching process, the teaching quality evaluation device needs to analyze the image and the voice of the target teaching process as follows:

For example, the teaching quality evaluation apparatus needs to determine the frequency of use of a target object by a teacher from an image of a classroom. The target object may include a blackboard and a presentation, and the frequency of use may be: the teacher uses the blackboard a first unit of time (e.g., one minute) and the sum of the number of times the presentation is used. Assuming that the teacher uses the blackboard 2 times per minute and the presentation 1 time, the target frequency of use is 3 times per minute. It should be noted that, the image of the classroom may include an image of a blackboard and an image of a presentation, and the teaching quality evaluation device may detect the image of the blackboard in combination with the intrusion detection method to determine whether the teacher uses the blackboard, and detect the image of the presentation in combination with the intrusion detection method to determine whether the teacher uses the presentation.

After the above-mentioned frequency of use is obtained, the teaching quality assessment device may compare the frequency of use with the first frequency. The first frequency may be, for example, 3 times per minute, or 6 times per minute, etc. When the use frequency is larger than the first frequency, the teaching quality assessment device can determine the movement frequency of a teacher between a platform area and a pavement area in the teaching room according to the image in the teaching room. Wherein, the moving frequency may be: the teacher moves from one of the podium area and the walkway area to the other area a number of times in a second unit of time (e.g., one minute) that is greater than the distance threshold from the shortest boundary of the one area. The distance threshold may be 5 meters, for example, and alternatively, the distance threshold may be another value, such as 3 meters or 7 meters, which is not limited by the embodiment of the present invention. Optionally, the teaching quality assessment device may detect images of a classroom in combination with an intrusion detection method to determine the location and the area of the teacher, and further determine the movement frequency.

After the movement frequency is obtained, the teaching quality assessment device can compare the movement frequency with a second frequency. The second frequency may be 3 times per minute. Alternatively, the second frequency may be another frequency, such as 5 times per minute, which is not limited in the embodiment of the present invention.

When the use frequency is smaller than or equal to the first frequency and/or the movement frequency is smaller than or equal to the second frequency, the teaching quality evaluation device can determine the marking time and the expression of the teacher at each marking time in the target teaching process according to the voice and the image of the teacher. The volume of the voice of the teacher at the marking time is greatly increased, for example, the volume of the teacher at the marking time in the target teaching process is larger than the average volume of the teacher before the marking time, and the volume difference between the voice of the teacher and the average volume of the teacher is larger than or equal to a volume threshold. For example, the teaching quality evaluation device may determine, in real time or at intervals of a preset time period, an average teacher volume in a target teaching process, determine a volume difference between the average teacher volume at the current time and the average teacher volume before the current time, determine that the current time is a marking time when the volume difference is greater than a volume threshold, and determine an expression of the teacher at the current time according to an image of the teacher.

Further, in analyzing the image and voice of the target teaching process, the teaching quality evaluation device may determine whether each of the teacher-like evaluation conditions is satisfied. Illustratively, the teacher class evaluation condition may include at least one of the following evaluation conditions:

first evaluation conditions corresponding to the third level: the using frequency of the teacher to the target object is larger than the first frequency, and the moving frequency of the teacher between the platform area and the pavement area in the classroom is larger than the second frequency; wherein the target object comprises: blackboard and presentation. When the first evaluation condition in the evaluation conditions of the teacher class is met, the use frequency of the blackboard and the presentation is the highest, the frequency of the movement of the teacher in the classroom is the highest, and the behavior of the teacher is abnormal, so that the teaching quality is low.

A second evaluation condition corresponding to the first level: the first evaluation condition is not satisfied, and the number of marking moments when the teacher has smile expression in the teaching process is larger than the first number, wherein the volume of the teacher at the marking moment in the teaching process is larger than the average volume of the teacher before the marking moment, and the volume difference between the teacher and the average volume of the teacher is larger than or equal to a volume threshold. When the first evaluation condition is not satisfied, it indicates that the teacher is in a normal state. At this time, if the teacher's expression is smiling and the marking time is many, the teacher can be considered to be carrying smiling loud lectures at all of the marking times, and the aggressiveness of the teacher lecture is high, so the teaching quality is high.

Third evaluation conditions corresponding to the second level: the first evaluation condition is not satisfied, and the number of marking moments of the teacher with smiling expression in the teaching process is less than or equal to the first number. When the teacher is in a normal state, if the expression of the teacher is smiling, the teacher can be considered to be provided with smiling loud lectures at the same time of the smiling, and the aggressiveness of the lecture of the teacher is medium, so that the teaching quality is medium.

Fourth evaluation conditions corresponding to the third level: the first evaluation condition is not satisfied, and the number of marking moments in which the teacher has anger expression during teaching is greater than the second number. When the teacher is in a normal state, if the expression of the teacher is angry and the marking time is more, the teacher can be considered to speak loudly at all of the marking times, and the aggressiveness of the teacher lecture is low, so that the teaching quality is low.

A fifth evaluation condition corresponding to the second level: the first evaluation condition is not satisfied, and the number of marking moments in which the teacher has anger expression during teaching is less than or equal to the second number. When the teacher is in a normal state, if the marked time when the expression of the teacher is anger is less, the teacher can be considered to speak loudly at the less marked time, and the aggressiveness of the teacher in teaching is medium, so the teaching quality is medium.

In the second aspect, in step 304, according to at least one of the image and the voice of the target teaching process, the teaching quality evaluation device detects that the student evaluation condition needs to analyze the image and the voice of the target teaching process as follows:

the teaching quality evaluation device may determine a designated area within the teaching room from the image of the teacher, the designated area including: at least one of the blackboard area, the presentation area and the teacher area.

The teaching quality evaluation apparatus also needs to determine the face orientation of each student from the image of each student. For example, the image of the student may include a face image of the student, and as shown in fig. 4, the face image of the student may include a mark point a for the left eye, a mark point B for the right eye, and a mark point C for the nose. From the distance D1 of the marking point a for the left eye from the marking point C for the nose and the distance D2 of the marking point B for the right eye from the marking point C for the nose, the face orientation of the student can be determined. For example, when the distance D1 is greater than the distance D2, it is determined that the face of the student is toward the left side thereof; when the distance D1 is smaller than the distance D2, the face of the student is determined to be directed to the right side thereof, and when the distance D1 is equal to the distance D2, the face of the student is determined to be directed to the right front thereof.

After determining the face orientation of each student, the teaching quality evaluation device needs to determine a first duty ratio of the student whose face is oriented to the specified area, and determine whether the coincidence rate of the student face orientation is within the specified probability range (e.g., the coincidence rate is greater than 70% and less than or equal to 85%) when the first duty ratio is less than or equal to a first ratio (e.g., 70%). When the coincidence rate is within the specified probability range, the teaching quality evaluation device needs to count the duration of the coincidence rate within the specified probability range, and compare whether the duration is greater than the first duration (e.g., 20 minutes or 25 minutes, etc.).

In addition, when the first ratio is greater than or equal to the second ratio (the second ratio is greater than or equal to the first ratio, for example, the second ratio is 85%), the teaching quality assessment device needs to determine a second ratio of the students having the target expression according to the image of each student, and compare the second ratio with a third ratio (for example, 15%) and a fourth ratio (for example, 30% or 35% or the like). The target expression may include: at least one of the expressions of depression, tension and serious, the third ratio and the fourth ratio may be sequentially increased.

Further, in analyzing the image and voice of the target teaching process, the teaching quality evaluation device may determine whether each of the student-like evaluation conditions is satisfied. Illustratively, the student class assessment conditions may include at least one of the following assessment conditions:

Evaluation conditions corresponding to the third level: the first ratio of the face to students in a designated area in the teaching room is smaller than or equal to the first ratio, and the duration of the consistency rate of the face orientation of the students in the designated probability range is longer than the first duration; wherein the designated area includes: at least one of the blackboard area, the presentation area and the teacher area. When the evaluation condition is met, the teaching quality evaluation device can determine that more students do not face areas where the blackboard, the presentation file and the teacher are located, and the students are expected everywhere for a long time, namely, the students are seriously listening to the students for a long time, and the product of the students is extremely low, and the teaching quality is low.

Evaluation conditions corresponding to the first level: the first duty cycle is greater than the second ratio, and the second duty cycle of the student having the target expression is less than or equal to the third ratio, the target expression including: at least one expression of stress, tension and serious. When the evaluation condition is met, the face of many students can be determined to face the blackboard, the presentation file or the area where the teacher is located, and the expression of many students is relaxed and pleasant (namely, not pressed, stressed and serious) at the moment, namely, many students are listening and speaking pleasurably and carefully, the product of the students is extremely high, and the teaching quality is high.

Evaluation conditions corresponding to the second level: the first ratio is greater than the second ratio, the second ratio is greater than the third ratio, and less than or equal to the fourth ratio. When the evaluation condition is met, the areas where more students face towards the blackboard, the presentation file or the teacher can be determined, and the expressions of more students are not depressed, tense or serious expressions at the moment, namely, part of students are listening and speaking happily and carefully, the aggressiveness of the students is medium, and the teaching quality is medium.

Evaluation conditions corresponding to the third level: the first duty cycle is greater than the second ratio and the second duty cycle is greater than the fourth ratio. When the evaluation condition is met, the areas where more students face towards the blackboard, the presentation file or the teacher can be determined, and the expressions of more students are suppressed, tense or serious expressions at the moment, so that more students cannot understand the content spoken by the teacher, and the product of the students is extremely low, and the teaching quality is low.

In the third aspect, in step 304, according to at least one of the image and the voice of the target teaching process, when detecting whether the interactive evaluation condition is satisfied in the target teaching process, the teaching quality evaluation device needs to analyze the image and the voice of the target teaching process as follows:

The teaching quality assessment device can detect keywords of the voice of the teacher, wherein the detected keywords can comprise: question keywords and specified student answer keywords. The question key word may include: "answer once", "demonstrate once", and "teach once", etc., the specified student answer keywords may include: "find classmates" and "find people" etc.

When a question keyword appears in the voice of a teacher and a specified student answer keyword appears in a specified time period after the question keyword, the teaching quality evaluation device also needs to determine a specified student to be specified for answer according to the specified student answer keyword. In the evaluation period after the specified student answers, the teaching quality evaluation device can judge whether other people (i.e., the teacher and other students) except the specified students in the teaching room evaluate the specified student answers according to the voice of the teacher and the voice of the other students, wherein the other students are other students except the specified students.

For example, after detecting the answer keyword of the specified student, if it is detected that the volume of the voice of the specified student is greatly increased at a certain time, the teaching quality evaluation device can consider that the specified student is answering a question at this time. The teaching quality assessment device may then detect whether the teacher and other students are evaluating the answers of the specified students for an evaluation period (e.g., five seconds) after the specified students answer the questions.

When detecting whether the teacher evaluates the answers of the specified students, the teaching quality evaluation device can detect the voice of the teacher in the evaluation time period (such as five seconds) so as to determine whether the voice of the teacher has pause and greatly increases the volume in the evaluation time period. When the voice of the teacher has pause and volume rise greatly in the evaluation duration, the teaching quality evaluation device can determine that the teacher evaluates the answers of the specified students. Alternatively, in detecting whether or not the teacher evaluates the answer of a specified student, the teaching quality evaluation device may also detect the voices of the teacher and the student for an evaluation period (e.g., five seconds) to determine whether or not the teacher and the specified student speak alternately. If it is determined that the teacher and the specified student have alternate utterances within the evaluation period, the teaching quality evaluation device may determine that the teacher has evaluated the answer of the specified student.

When detecting whether other students evaluate the answers of the appointed students, the teaching quality evaluation device can also detect whether the other students have students with voice volume larger than the first volume, if so, the teaching quality evaluation device can determine that the other students have bargaining behaviors, and then can judge that the other students evaluate the answers of the appointed students.

Optionally, in the process of determining the face orientation of each student based on the image of the target teaching process, the teaching quality evaluation device may further determine, in real time or at intervals, whether the third ratio of the students whose face orientation cannot be determined based on the image of the target teaching process is greater than the fifth ratio. It should be noted that, under the condition that the student lies prone on a desk or sleeps on a countersunk desk, the face orientation of the student cannot be determined according to the image of the student in the target teaching process; when a student listens carefully, the face orientation of the student can be determined from the image of the student. And when the third ratio is larger than the fifth ratio, fewer students are experienced at the moment, and when the third ratio is smaller than or equal to the fifth ratio, more students are experienced at the moment.

When it is determined that the third ratio is greater than the fifth ratio, the teaching quality evaluation means may detect whether a question keyword appears in the voice of the teacher in a question duration before the third ratio is greater than the fifth ratio, whether the volumes of the voices of the students are both less than or equal to the second volume when the third ratio is greater than the fifth ratio, and whether the volumes of the voices of the students satisfy the volume condition when the third ratio is greater than the fifth ratio. Wherein the volume conditions include: the duration time length of the voice of the student is smaller than or equal to the second volume and is longer than the second duration time, or the cumulative time length of the voice of the student is smaller than or equal to the second volume and is longer than the cumulative duration time threshold.

Optionally, when the instruction quality assessment device detects that the questioning keyword appears in the voice of the teacher, the instruction quality assessment device may further detect whether a first event appears in a first response time period after the questioning keyword appears, and detect a duration time period of the first event when the first event appears in the first response time period after the questioning keyword appears in the voice of the teacher. Illustratively, the first event may include: at least one of reading and writing by students. When the duration of the first event is less than or equal to the third duration (for example, three minutes), the teaching quality evaluation device needs to detect whether the number of the first grades in the grade set of the target teaching process under the interactive type evaluation condition is less than the third number (for example, two); when the duration of the first event is longer than the third duration and is less than or equal to the fourth duration (for example, five minutes), the teaching quality evaluation device needs to detect whether the number of the second level in the level set of the target teaching process under the interactive type evaluation condition is less than the fourth number (for example, two); when the duration of the first event is longer than the fourth duration, the teaching quality evaluation device needs to detect whether the number of third grades in the grade set of the target teaching process under the interactive type evaluation condition is smaller than the fifth number (for example, one).

Optionally, when the first event occurs within the first response time period after the question keyword occurs in the voice of the teacher, the teaching quality evaluation device may further compare the third ratio with a sixth ratio (e.g. 30%) and a seventh ratio (e.g. 50%).

Optionally, the teaching quality assessment device may also detect whether a second event occurs, and detect a hand lifting rate of the student when the second event occurs. The second event may include: and lifting hands of the students in the second response time after the questioning keywords appear in the voice of the teacher. The teaching quality evaluation device can also detect whether students enter the platform area in a third response time period after the question key words appear in the voice of the teacher.

Optionally, the teaching quality assessment device may also detect whether a question keyword appears in the student's voice. When the questioning keyword appears in the voice of the student, the teaching quality evaluation device can also detect whether the questioning keyword of the student is guided to appear in the voice of the teacher within the guiding time period before the questioning keyword appears in the voice of the student.

Further, in analyzing the image and voice of the target teaching process, the teaching quality evaluation device may determine whether each of the interactive class evaluation conditions is satisfied. Illustratively, the student class assessment conditions may include at least one of the following assessment conditions:

Evaluation conditions corresponding to the first level: and the voice of the teacher presents the answer keywords of the appointed students in the appointed time after the question keywords appear, and other people except the appointed students in the classroom evaluate the answers of the appointed students in the evaluation time after the appointed students answer indicated by the answer keywords of the appointed students. When the evaluation condition is met, the effective discussion of the problems by the teacher and the students is shown, the interaction product of the teacher and the students is extremely high, and the teaching quality is high.

Evaluation conditions corresponding to the third level: the voice of the teacher presents the answer keywords of the appointed students in the appointed time after the question keywords appear, and other people do not evaluate the answers of the appointed students in the evaluation time after the answers of the appointed students. When the evaluation condition is met, the fact that the teacher and the students do not effectively discuss the problems is indicated, the interaction product of the teacher and the students is extremely low, and the teaching quality is low.

Evaluation conditions corresponding to the first level: in the question asking time before the third ratio is larger than the fifth ratio, question asking keywords appear in the voice of the teacher, and when the third ratio is larger than the fifth ratio, the voice volume of the student is smaller than or equal to the second volume; wherein the third duty cycle is a duty cycle of a student whose face orientation cannot be determined based on the image of the teaching process. When the evaluation condition is met, the teacher is shown to guide students to discuss the problems proposed by the teacher, the interaction product of the teacher and the students is extremely high, and the teaching quality is high.

Evaluation conditions corresponding to the third level: in the question asking time before the third ratio is larger than the fifth ratio, no question asking keyword appears in the voice of the teacher, and when the third ratio is larger than the fifth ratio, the volume of the voice of the student meets the volume condition; the volume conditions include: the duration time length of the voice of the student is smaller than or equal to the second volume and is longer than the second duration time, or the cumulative time length of the voice of the student is smaller than or equal to the second volume and is longer than the cumulative duration time threshold. When the evaluation condition is met, the teacher is not asking questions to the students, the students speak in small voice independently, and the students do not listen and talk carefully, so that the interaction product of the students of the teacher is extremely low, and the teaching quality is low.

Evaluation conditions corresponding to the first level: a first event occurs in a first response time after a question keyword occurs in the voice of a teacher, the duration of the first event is smaller than or equal to a third time, the number of first grades in a grade set of the teaching process under an interactive evaluation condition is smaller than a third number, and the first event comprises: at least one of reading and writing by students. When the evaluation condition is met, the time for the students to read or write the questions is short after the teacher asks the questions to the students, the difficulty of the questions is low, the interaction product of the teacher and the students is extremely high, and the teaching quality is high.

Evaluation conditions corresponding to the second level: the method comprises the steps that a first event occurs in a first response time after a question keyword occurs in a voice of a teacher, the duration of the first event is longer than a third time and smaller than or equal to a fourth time, and the number of second grades in a grade set of the teaching process under an interactive evaluation condition is smaller than the fourth number. When the evaluation condition is met, the time for the students to read or write the questions is short after the teacher asks the questions to the students, the difficulty of the questions is medium, the interaction aggressiveness of the teacher and the students is medium, and the teaching quality is medium.

Evaluation conditions corresponding to the third level: the method comprises the steps that a first event occurs in a first response time after a question keyword occurs in a voice of a teacher, the duration time of the first event is longer than a fourth time, and the number of third grades in a grade set in the teaching process under the interactive evaluation condition is smaller than a fifth number. When the evaluation condition is met, the time for the students to read or write the questions is longer after the teacher asks the questions to the students, the difficulty of the questions is higher, the interaction product of the teacher and the students is extremely lower, and the teaching quality is lower.

Evaluation conditions corresponding to the first level: a first event occurs in a first response time period after a question keyword occurs in the voice of a teacher, and a third duty ratio is smaller than or equal to a sixth ratio, wherein the third duty ratio is a duty ratio of a student whose face orientation cannot be determined based on images of a teaching process, and the first event comprises: at least one of reading and writing by students. When the evaluation condition is met, after the teacher asks questions to students, the students start to read books or write homework, the students with the joints are fewer, the interactive product of the students of the teacher is extremely high, and the teaching quality is high.

Evaluation conditions corresponding to the second level: the first event occurs in a first response time period after the question keyword occurs in the voice of the teacher, the third ratio is larger than the sixth ratio and smaller than or equal to the seventh ratio, and the seventh ratio is larger than the sixth ratio. When the evaluation condition is met, the students start to read books or write works after the teacher asks questions to the students, and the students at the junction are few, so that the interaction of the teacher and the students is moderate, and the teaching quality is moderate.

Evaluation conditions corresponding to the third level: the first event occurs within a first response time period after the question key occurs in the teacher's voice, and the third duty ratio is greater than the seventh ratio. When the evaluation condition is met, after the teacher asks questions to students, the students start to read books or write homework, and the students at the junction are more, so that the interaction product of the teacher and the students is extremely low, and the teaching quality is low.

Evaluation conditions corresponding to the first level: and in a second response time after the questioning keywords appear in the voice of the teacher, the hand lifting rate of the students is larger than the probability threshold. When the evaluation condition is met, the teacher asks questions to the students, the students who lift hands are more, the interaction product of the teacher and the students is extremely high, and the teaching quality is high.

Evaluation conditions corresponding to the second level: and in a second response time after the questioning keyword appears in the voice of the teacher, the hand lifting rate of the student is smaller than or equal to the probability threshold. When the evaluation condition is met, the teacher asks questions to the students, the students who lift hands are few, the interaction degree of the teacher and the students is moderate, and the teaching quality is moderate.

Evaluation conditions corresponding to the first level: the number of occurrences of the second event is greater than the specified number, the second event comprising: and lifting hands of the students in the second response time after the questioning keywords appear in the voice of the teacher. When the evaluation condition is met, the event that a teacher asks questions and guides students to lift hands in the target teaching process is shown to happen many times, the interaction product of the teacher and the students is extremely high, and the teaching quality can be considered to be high.

Evaluation conditions corresponding to the first level: in a third response time after the question key words appear in the voice of the teacher, students enter the platform area. When the evaluation condition is met, the teacher is indicated to guide the students to answer the questions or to carry out some demonstrations, and the interaction product of the teacher and the students is extremely high at the moment, so that the teaching quality is high.

Evaluation conditions corresponding to the first level: the question keywords appear in the student's voice. When the evaluation condition is met, the students are shown to actively ask questions to teachers, and the interaction product of the teacher and the students is extremely high, so that the teaching quality is high.

Evaluation conditions corresponding to the first level: the student question keyword is guided to appear in the voice of the teacher within the guiding time period before the student question keyword appears in the voice of the student. When the evaluation condition is met, the student actively asking questions are guided by the teacher, the interaction product of the teacher and the student is extremely high, and the teaching quality is high.

And after determining the grade set under each target evaluation condition (i.e. each satisfied evaluation condition in the target teaching process) of the target teaching process, the teaching quality evaluation device can also adjust at least one grade set, so that the quality grade of the target teaching process determined based on the adjusted grade set is more accurate and is more fit with the actual situation, thereby being capable of improving the accuracy of teaching quality evaluation.

Fig. 5 is a schematic structural diagram of a teaching quality assessment device according to an embodiment of the present invention, as shown in fig. 5, the teaching quality assessment device 30 may include:

the detection module 301 is configured to detect whether n evaluation conditions are satisfied in the target teaching process according to at least one of an image and a voice of the target teaching process, where n is greater than or equal to 1, and each evaluation condition has a corresponding level;

the processing module 302 is configured to add, when determining a target evaluation condition that is satisfied in the target teaching process, a level corresponding to the target evaluation condition to a level set of the target teaching process under the target evaluation condition;

the adjusting module 303 is configured to adjust the level set of the target teaching process under at least one target evaluation condition when the target teaching process meets an adjustment condition;

The first determining module 304 is configured to determine a quality level of the target teaching process according to a level set of the target teaching process under all target evaluation conditions.

In summary, in the teaching quality evaluation device provided by the embodiment of the invention, the processing module can determine the level set of the target teaching process under the evaluation condition according to at least one of the image and the voice of the target teaching process, and the adjustment module can adjust the level set of the target teaching process under the evaluation condition according to the adjustment condition. Finally, the first determination module can analyze the level set of the target teaching process under the evaluation condition to determine the quality level of the teaching process. Therefore, the teaching quality is not required to be determined according to the scoring of students on specific assessment equipment, so that the teaching quality assessment process is simplified, and the teaching quality assessment efficiency is improved.

Optionally, the n evaluation conditions include: at least one type of evaluation condition, the adjustment module 303 is configured to: and when any target evaluation condition is the evaluation condition corresponding to the highest grade in the class of evaluation conditions to which the target evaluation condition belongs and the number of elements in the grade set of the target teaching process under any target evaluation condition is greater than the element number threshold value, degrading the grade in the grade set of the target teaching process under any target evaluation condition.

Optionally, the n evaluation conditions include: at least one type of evaluation condition, the adjustment module 303 is configured to: when the target teaching process meets the first condition and the duty ratio of the teaching process meeting the first condition in the target teaching process and related teaching processes is larger than the first duty ratio, upgrading the grade in the grade set of the target teaching process under the first type evaluation condition; when any teaching process meets the first condition, the evaluation condition which is met in any teaching process in the first type of evaluation condition is as follows: the first type of evaluation conditions correspond to non-highest-level evaluation conditions, the first type of evaluation conditions are any type of evaluation conditions in at least one type of evaluation conditions, and the target teaching process and the related teaching process are related to the same subject or are carried out in the same time period.

Optionally, the n evaluation conditions include: at least one type of evaluation condition, the adjustment module 303 is configured to: when the target teaching process meets the second condition and the duty ratio of the teaching process meeting the second condition in the target teaching process and related teaching processes is larger than the second duty ratio, degrading the grades in the grade set of the target teaching process under the second type evaluation condition; when any teaching process meets the second condition, the evaluation condition met in any teaching process in the second class of evaluation conditions is: the second type of evaluation conditions correspond to non-lowest-level evaluation conditions, and the second type of evaluation conditions are any type of evaluation conditions in at least one type of evaluation conditions; the target teaching process and the related teaching process are related to the same subject or are performed in the same time period.

Optionally, the n evaluation conditions include: fig. 6 is a schematic structural diagram of another teaching quality assessment device according to an embodiment of the present invention, as shown in fig. 6, on the basis of fig. 5, the teaching quality assessment device may further include:

the downgrade module 305 is configured to downgrade the grades in the target grade set if the growth speed of the grade number in the target grade set is greater than the speed threshold after the grade set of the target teaching process under any target evaluation condition is adjusted; wherein the target class set comprises: and the target teaching process is a grade set under at least one highest evaluation condition, wherein the highest evaluation condition is the evaluation condition corresponding to the highest grade in one class of evaluation conditions to which any target evaluation condition belongs.

Optionally, the teaching quality assessment device further includes:

a first obtaining module 306, configured to obtain target scene information of a target teaching process;

a second determining module 307, configured to determine, according to the scene information corresponding to the m evaluation condition groups, a target evaluation condition group corresponding to the target scene information in the m evaluation condition groups, where m is greater than 1;

a second obtaining module 308, configured to obtain n evaluation conditions from the target evaluation condition group.

Optionally, the n evaluation conditions include: at least one of teacher class evaluation conditions, student class evaluation conditions and interaction class evaluation conditions, wherein the teacher class evaluation conditions are related to teacher lectures, the student class evaluation conditions are related to student hearing and speaking, and the interaction class evaluation conditions are related to interaction between teacher and student.

Optionally, fig. 7 is a schematic structural diagram of a first determining module according to an embodiment of the present invention, as shown in fig. 7, where the first determining module 304 includes:

a first determining unit 3071, configured to determine a class of a teacher in the target teaching process according to a class set of the target teaching process under the class evaluation condition of the teacher satisfied by the target teaching process;

a second determining unit 3072 for determining a class of the target teaching process according to the class set of the target teaching process under the class evaluation condition of the students satisfied by the target teaching process;

a third determining unit 3073, configured to determine an interaction class level of the target teaching process according to a class set of the target teaching process under the interaction class evaluation condition that the target teaching process meets;

a processing unit 3074 for repeating the teacher class for X times and the student class for Y times, repeating the interactive class level for Z times to obtain a quality class set, wherein Z is more than Y and more than X is more than 0;

A fourth determining unit 3075 for determining a quality level of the target teaching process based on the set of quality levels.

Optionally, the levels corresponding to the n evaluation conditions include: the first level, the second level, and the third level, which decrease in order, the fourth determining unit 3075 is configured to: determining a number difference between a first level and a third level in the quality level set; when the number difference value is larger than a first number threshold value, determining the quality grade of the target teaching process as a first grade; when the number difference value is smaller than or equal to the first number threshold value and larger than the second number threshold value, determining the quality level of the target teaching process as a second level, wherein the first number threshold value is larger than the second number threshold value; and when the number difference value is smaller than or equal to the second number threshold value, determining the quality level of the target teaching process as a third level.

Optionally, the levels corresponding to the n evaluation conditions include: the first determining unit 3071 is configured to: determining the grade in the grade set of the target teaching process under the teacher evaluation condition which is satisfied by the target teaching process as the teacher grade; the second determining unit 3072 is configured to: determining the grade in the grade set of the target teaching process under the student class evaluation condition which is met by the target teaching process as the student class grade; the third determining unit 3073 is for: if the third condition and the fourth condition are met, determining the interaction class grade as a first grade; if the third condition or the fourth condition is met, determining the interaction class grade as a second grade; if the third condition and the fourth condition are not met, determining that the interaction class grade is a third grade; wherein the third condition comprises: the number of the first grades in the grade set of the target teaching process under the interaction type evaluation condition which is met by the target teaching process is larger than the first number, and the fourth condition comprises: the number of third grades in the grade set of the target teaching process under the interaction type evaluation condition which is met by the target teaching process is smaller than the second number, and the first number is larger than the second number.

Optionally, the levels corresponding to the n evaluation conditions include: the first grade, the second grade and the third grade which are sequentially reduced, wherein the teacher evaluation condition comprises at least one of the following evaluation conditions, and corresponds to the first evaluation condition of the third grade: the using frequency of the teacher to the target object is larger than the first frequency, and the moving frequency of the teacher between the platform area and the pavement area in the classroom is larger than the second frequency; wherein the target object comprises: blackboard and demonstration manuscript; a second evaluation condition corresponding to the first level: the first evaluation condition is not met, and the number of marking moments when the teacher has smile expression in the teaching process is larger than the first number, wherein the volume of the teacher at the marking moment in the teaching process is larger than the average volume of the teacher before the marking moment, and the volume difference between the teacher and the average volume of the teacher is larger than or equal to a volume threshold; third evaluation conditions corresponding to the second level: the first evaluation condition is not satisfied, and the number of marking moments of smile expressions of a teacher in the teaching process is smaller than or equal to the first number; fourth evaluation conditions corresponding to the third level: the first evaluation condition is not satisfied, and the number of marking moments of the teacher with anger expression in the teaching process is larger than the second number; a fifth evaluation condition corresponding to the second level: the first evaluation condition is not satisfied, and the number of marking moments in which the teacher has anger expression during teaching is less than or equal to the second number.

Optionally, the levels corresponding to the n evaluation conditions include: the first grade, the second grade and the third grade which are sequentially reduced, and the student assessment conditions comprise at least one of the following assessment conditions, and the assessment conditions corresponding to the third grade are as follows: the first ratio of the face to students in a designated area in the teaching room is smaller than or equal to the first ratio, and the duration of the consistency rate of the face orientation of the students in the designated probability range is longer than the first duration; wherein the designated area includes: at least one of the blackboard area, the presentation area and the teacher area; evaluation conditions corresponding to the first level: the first duty cycle is greater than the second ratio, and the second duty cycle of the student having the target expression is less than or equal to the third ratio, the target expression including: at least one expression of stress, tension and serious, the second ratio being greater than or equal to the first ratio; evaluation conditions corresponding to the second level: the first ratio is greater than the second ratio, the second ratio is greater than the third ratio, and less than or equal to the fourth ratio; evaluation conditions corresponding to the third level: the first duty cycle is greater than the second ratio and the second duty cycle is greater than the fourth ratio.

Optionally, the levels corresponding to the n evaluation conditions include: the interactive type evaluation conditions comprise at least one of the following evaluation conditions, and the evaluation conditions correspond to the first level: the method comprises the steps that appointed student answer keywords appear in voice of a teacher within appointed time after the questioning keywords appear, and in evaluation time after appointed student answers indicated by the appointed student answer keywords, other people except the appointed students in a classroom evaluate the answers of the appointed students; evaluation conditions corresponding to the third level: the voice of the teacher presents the answer keywords of the appointed students in the appointed time after the question keywords appear, and other people do not evaluate the answers of the appointed students in the evaluation time after the answers of the appointed students.

Optionally, the levels corresponding to the n evaluation conditions include: the interactive type evaluation conditions comprise at least one of the following evaluation conditions, and the evaluation conditions correspond to the first level: in the question asking time before the third ratio is larger than the fifth ratio, question asking keywords appear in the voice of the teacher, and when the third ratio is larger than the fifth ratio, the voice volume of the student is smaller than or equal to the second volume; the third duty ratio is the duty ratio of students whose face orientation cannot be determined based on the images of the teaching process; evaluation conditions corresponding to the third level: in the question asking time before the third ratio is larger than the fifth ratio, no question asking keyword appears in the voice of the teacher, and when the third ratio is larger than the fifth ratio, the volume of the voice of the student meets the volume condition; the volume conditions include: the duration time length of the voice of the student is smaller than or equal to the second volume and is longer than the second duration time, or the cumulative time length of the voice of the student is smaller than or equal to the second volume and is longer than the cumulative duration time threshold.

Optionally, the levels corresponding to the n evaluation conditions include: the interactive type evaluation conditions comprise at least one of the following evaluation conditions, and the evaluation conditions correspond to the first level: a first event occurs in a first response time after a question keyword occurs in the voice of a teacher, the duration of the first event is smaller than or equal to a third time, the number of first grades in a grade set of the teaching process under an interactive evaluation condition is smaller than a third number, and the first event comprises: at least one of reading and writing by students; evaluation conditions corresponding to the second level: a first event occurs in a first response time after a question keyword occurs in the voice of a teacher, the duration of the first event is longer than a third time and is smaller than or equal to a fourth time, and the number of second grades in a grade set of the teaching process under the interactive evaluation condition is smaller than a fourth number; evaluation conditions corresponding to the third level: the method comprises the steps that a first event occurs in a first response time after a question keyword occurs in a voice of a teacher, the duration time of the first event is longer than a fourth time, and the number of third grades in a grade set in the teaching process under the interactive evaluation condition is smaller than a fifth number.

Optionally, the levels corresponding to the n evaluation conditions include: the interactive type evaluation conditions comprise at least one of the following evaluation conditions; evaluation conditions corresponding to the first level: a first event occurs in a first response time period after a question keyword occurs in the voice of a teacher, and a third duty ratio is smaller than or equal to a sixth ratio, wherein the third duty ratio is a duty ratio of a student whose face orientation cannot be determined based on images of a teaching process, and the first event comprises: at least one of reading and writing by students; evaluation conditions corresponding to the second level: the first event appears in the first response time after the question keyword appears in the voice of the teacher, the third ratio is larger than the sixth ratio and smaller than or equal to the seventh ratio, and the seventh ratio is larger than the sixth ratio; evaluation conditions corresponding to the third level: the first event occurs within a first response time period after the question key occurs in the teacher's voice, and the third duty ratio is greater than the seventh ratio.

Optionally, the levels corresponding to the n evaluation conditions include: the interactive type evaluation conditions comprise at least one of the following evaluation conditions, and the evaluation conditions correspond to the first level: in a second response time after the questioning keywords appear in the voice of the teacher, the hand lifting rate of the students is larger than the probability threshold; evaluation conditions corresponding to the second level: in a second response time after the questioning keywords appear in the voice of the teacher, the hand lifting rate of the students is smaller than or equal to the probability threshold; evaluation conditions corresponding to the first level: the number of occurrences of the second event is greater than the specified number, the second event comprising: the students lift hands in a second response time after the questioning keywords appear in the voice of the teacher; evaluation conditions corresponding to the first level: in a third response time after the question key words appear in the voice of the teacher, students enter the platform area.

Optionally, the levels corresponding to the n evaluation conditions include: the interactive type evaluation conditions comprise at least one of the following evaluation conditions, and the evaluation conditions correspond to the first level: a questioning keyword appears in the voice of the student; evaluation conditions corresponding to the first level: the student question keyword is guided to appear in the teacher's voice within the guiding time period before the question keyword appears in the student's voice.

The embodiment of the invention also provides computer equipment, which can comprise a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface and the memory are communicated with each other through the bus; a memory for storing a computer program; and a processor for executing the program stored in the memory to implement the method shown in fig. 2 or fig. 3.

The embodiment of the invention also provides a computer readable storage medium, and the storage medium stores a computer program, and the computer program realizes the method shown in fig. 2 or fig. 3 when being executed by a processor.

The term "and/or" in the present invention is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be noted that, the method embodiment provided in the embodiment of the present invention can be referred to with the corresponding device embodiment, and the embodiment of the present invention is not limited thereto. The sequence of the steps of the method embodiment provided by the embodiment of the invention can be properly adjusted, the steps can be correspondingly increased or decreased according to the situation, and any method which is easily conceivable to be changed by a person skilled in the art within the technical scope of the disclosure of the invention is covered in the protection scope of the invention, so that the description is omitted.

The foregoing description of the preferred embodiments of the present application is not intended to limit the application, but rather, the application is to be construed as limited to the appended claims.

Claims

1. A method for teaching quality assessment, the method comprising:

acquiring target scene information of a target teaching process, wherein the target scene information comprises subjects related to a previous teaching process of the target teaching process;

according to scene information corresponding to m evaluation condition groups, determining a target evaluation condition group corresponding to the target scene information in the m evaluation condition groups, wherein m is more than 1, and the evaluation condition included in the target evaluation condition group is related to the influence of the last teaching process of the target teaching process included in the target scene information on students;

acquiring n evaluation conditions from the target evaluation condition group;

detecting whether the n evaluation conditions are met in the target teaching process according to at least one of images and voices of the target teaching process, wherein n is more than or equal to 1, and each evaluation condition has a corresponding grade;

2. The method of claim 1, wherein the n evaluation conditions comprise: at least one type of evaluation condition, when the target teaching process meets the adjustment condition, adjusting the level set of the target teaching process under at least one target evaluation condition, including:

3. The method of claim 1, wherein the n evaluation conditions comprise: at least one type of evaluation condition, when the target teaching process meets the adjustment condition, adjusting the level set of the target teaching process under at least one target evaluation condition, including:

4. The method of claim 1, wherein the n evaluation conditions comprise: at least one type of evaluation condition, when the target teaching process meets the adjustment condition, adjusting the level set of the target teaching process under at least one target evaluation condition, including:

5. The method of any one of claims 1 to 4, wherein the n evaluation conditions comprise: at least one class of evaluation conditions, the method further comprising:

6. The method of any one of claims 1 to 4, wherein the n evaluation conditions comprise: at least one of teacher class evaluation conditions, student class evaluation conditions and interaction class evaluation conditions,

7. A teaching quality assessment device, characterized in that the teaching quality assessment device comprises:

the first acquisition module is used for acquiring target scene information of a target teaching process, wherein the target scene information comprises subjects related to a previous teaching process of the target teaching process;

the second determining module is used for determining a target evaluation condition set corresponding to the target scene information in the m evaluation condition sets according to the scene information corresponding to the m evaluation condition sets, wherein m is more than 1, and the evaluation condition included in the target evaluation condition set is related to the influence of the last teaching process of the target teaching process included in the target scene information on students;

the second acquisition module is used for acquiring n evaluation conditions from the target evaluation condition group;

the detection module is used for detecting whether the n evaluation conditions are met in the target teaching process according to at least one of images and voices of the target teaching process, n is more than or equal to 1, and each evaluation condition has a corresponding grade;

8. A teaching quality assessment system, the teaching quality assessment system comprising: at least one of an image acquisition device and a voice acquisition device, and the teaching quality evaluation device of claim 7,

9. The computer equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the bus; a memory for storing a computer program; a processor for executing a program stored on a memory, implementing the method of any one of claims 1-6.

10. A computer readable storage medium, characterized in that the storage medium has stored therein a computer program which, when executed by a processor, implements the method of any of claims 1-6.