An intelligent interactive teaching platform for adjustable desks

Abstract

The present invention discloses an intelligent interactive teaching platform for an adjustable desk, comprising a data acquisition module, a platform interaction module and an adjustment module. The platform interaction module is used for interactively monitoring the teacher's teaching and the students' listening to the lessons. The data acquisition module, the platform interaction module and the output module are connected to each other for communication. The present invention uses the monitoring and hierarchical analysis of the pressure of the student's arm on the desk through the concentration monitoring submodule to judge the students' concentration in different time periods, so that the monitoring is more accurate and has a wider scope of application; through the difference rate analysis submodule, real-time monitoring of the students' learning status is realized, which greatly improves the students' class efficiency; the inclination angle of the desk is adjusted by the adjustment module, which can help students relieve fatigue by adjusting their sitting posture effectively when they are tired in the latter part of the course. The present invention has the characteristics of high humanization and strong teaching interactive monitoring ability.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent teaching management, and in particular to an intelligent interactive teaching platform for an adjustable desk. Background Art

[0002] With the rapid development of Internet technology and live broadcast platforms, more and more teachers are conducting online live teaching. Live teaching has become one of the main teaching methods, but the quality of teachers in live teaching varies greatly. Therefore, the analysis of the teaching quality of teachers in live teaching is particularly important. At present, the analysis of the quality of teachers' live teaching mainly monitors the attendance rate of students during teachers' live teaching, the enthusiasm of students' interaction, and the scores of students' subsequent tests, and then analyzes the quality of teachers' live teaching.

[0003] In the prior art, a large number of intelligent adjustable desks are used to help students to listen to lectures more easily; at the same time, an intelligent interactive teaching platform is developed to monitor the teaching quality of teachers during the teaching process, and to judge students' class experience and learning efficiency through feedback from students on teachers' classes. However, in some online teaching scenarios, there is still a problem of regional time difference between the teacher's key teaching time period and the student's high-concentration listening time period. After a long period of serious study, students are prone to learning fatigue. During the key teaching period in the latter part of the course, it is difficult for them to concentrate on listening to lectures and thinking, resulting in low learning efficiency for students. Intelligent adjustable desks cannot achieve effective fatigue regulation effects. Therefore, it is very necessary to design an intelligent interactive teaching platform for adjustable desks with a high degree of humanization and strong teaching interaction monitoring capabilities. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent interactive teaching platform for an adjustable desk to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an intelligent interactive teaching platform for an adjustable desk, comprising a data acquisition module, a platform interaction module and an adjustment module, wherein the data acquisition module is used to obtain relevant information in the equipment used by the students during the learning process; the platform interaction module is used to interactively monitor the teacher's class and the students' listening to the class; the adjustment module is used to output corresponding instructions through the students' class equipment, and the data acquisition module, the platform interaction module and the output module are connected to each other in communication;

[0006] The platform interaction module includes a student learning status analysis module, which is used to analyze the real-time learning status of students through the interaction between teachers and students during class;

[0007] The student learning status analysis module further includes a concentration monitoring submodule, which is used to monitor the concentration of students in class;

[0008] A desk adjustment mechanical device is provided on the outer side of the corners of the adjustable desk, wherein the mechanical device is connected to the outer side of the corner of the desk via a plurality of adsorption devices, and the other end of the mechanical device is electrically connected to the teaching display of the intelligent interactive teaching platform, and the control terminal in the teaching display outputs the adjustment instructions obtained by the detection operation method in real time.

[0009] According to the above technical solution, the data collection module includes a teaching platform information collection module and a study desk information collection module. The teaching platform information collection module is used to obtain relevant information of the online teaching platform; the study desk information collection module is used to collect relevant information of the matching study desks used by students in class.

[0010] According to the above technical solution, the platform interaction module also includes a desktop force detection module, a force sensor detection unit and a camera unit. The desktop force detection module is used to detect the pressure applied by the students on the desktop; the force sensor detection unit is used to detect the force value in the target area of ​​the desk desktop; the camera unit is used to capture the student and desk image information.

[0011] According to the above technical solution, the student learning status analysis module also includes a difference rate analysis submodule, and the difference rate analysis submodule is used to analyze the difference rate value between the student learning status and the concentration node.

[0012] According to the above technical solution, the output module includes a device adjustment module and a prompt module. The device adjustment module is used to adjust the relevant equipment on the student's desk; the prompt module is used to output the prompt content to concentrate the attention through the teaching terminal when the teaching platform detects that the student's attention is too low.

[0013] According to the above technical solution, the operation method of the intelligent interactive teaching platform mainly includes the following steps:

[0014] Step S1: accessing the relevant programs of the adjustable desk and its detection and operation method in the teaching terminal of the target teaching platform;

[0015] Step S2: During the teaching class, the pressure exerted by the student's arm on the desk surface is monitored in real time;

[0016] Step S3: predicting the change of the nodes corresponding to the students' concentration and the teachers' teaching focus over time, and counting the difference rate between the students' learning status and the concentration nodes. The interactive teaching platform inputs the finally obtained adjustment instructions into the adjustment mechanical device through the control terminal in the teaching display according to the difference rate information, and adjusts the student's matching desk in time;

[0017] Step S4: The system uses the prompt module to prompt students who have been in a high discrepancy rate for a long time, so as to help students better absorb the teaching content.

[0018] According to the above technical solution, step S2 further includes:

[0019] Step S21: After the teaching course begins, the control terminal in the teaching display transmits the class instruction to the desk adjustment mechanical device, and automatically adjusts the four stretching devices at the desk legs according to the camera on the teaching display to shoot the student's upper body at a constant angle, so that the student's face area is completely in the camera screen, and the length value of the desk support leg in the desk stretching device is fixed;

[0020] The lower corners of the adjustable desk are provided with four stretching devices that can be used to support the ground, and can be used to adjust the horizontal height of the desk tabletop relative to the ground;

[0021] Step S22: The force sensor detection unit set on the desk where books are placed and where the students' hands are placed acquires the detected pressure value F every 5 seconds. 总 , obtain the limit value F of the pressure values ​​of the two desks through the database 01 and the limit value F 02 and the desk pressure value F during the monitoring period 总 When the force sensor detection unit detects that the pressure value is less than the limit value F 01 When the force sensor detection unit detects that the pressure value is greater than the limit value F 01 And less than the limit value F 02 When the force sensor detection unit detects that the total pressure value is greater than the limit value F 02 When , it is determined that the current student is in the note-taking state, where the length of the monitoring period is m minutes, the value of m is determined by the total time of the online class, and the maximum value of m is 3;

[0022] Desk pressure value F 总 The specific method for obtaining F is: 总 =F1+F2, where F1 is the pressure value when the student places both hands normally on the desk, and F2 is the pressure value applied by the student holding the pen on the book on the desk.

[0023] According to the above technical solution, step S3 further includes:

[0024] Step S31: setting a number of program nodes in the online classroom, wherein the program node setting method mainly includes:

[0025] When the classroom terminal recognizes that the teacher releases a question on the online teaching platform for the first time, the current time is set to the first degree node 01, and when the teacher subsequently releases different questions on the platform, the current time is set to the first degree node 0X, where X is the total number of exercises currently released by the teacher in the classroom during the monitoring period;

[0026] When the classroom terminal recognizes that the teacher points the main screen transmission of answering questions to a student user on the online teaching platform for the first time, the current time is set to the second degree node 01, and when the teacher subsequently points the main screen transmission of answering questions to other student users on the platform, the current time is set to the second degree node 0Y, where Y is the total number of times the teacher answers questions in class during the monitoring period;

[0027] Count the number of times in the classroom when the time difference between the first degree node 0I1 and the second degree node 0I2 is less than η seconds, and the total number is W. Then in the current online teaching classroom, the number of attention nodes that have appeared is S=X+YW, where η is the minimum node separation time, I1 is the corresponding number of times a question is randomly selected from the X times of questions posted, and I2 is the corresponding number of times a question is randomly selected from the Y times of students answering questions.

[0028] Step S32: The system counts the difference rate between the student's learning status and the concentration node between two adjacent attention nodes that have appeared in the classroom, where the difference rate value is 0 or 1, and outputs the total difference rate value currently monitored by the student. When the difference rate exceeds the rated value, it is determined that the current student has reached a state of learning fatigue.

[0029] According to the above technical solution, step S32 further includes:

[0030] Step S321: When the system recognizes that the student has reached a fatigue state, the control terminal in the teaching display outputs an adjustment command to the adjustment mechanism in the desk. After receiving the command, the adjustment mechanism controls the joystick connected to the desk surface under the desk to swing toward the student's seat, and controls the swing angle of the desk through the adsorption devices around the corners of the desk. Wherein S0 is the total value of the difference rate of the students currently monitored in step S32, and ψ is the adjustment angle limit coefficient;

[0031] Step S322: When the swing angle θ exceeds the maximum safe placement angle, the camera is used to capture and identify the placement position of the student's book on the desk surface, and the horizontal area on one side of the swing angle direction of the book placement position is located, and the blocking device in the horizontal area is extended to ensure that the book can stay stably on the desktop.

[0032] According to the above technical solution, in step S321, if the student's learning fatigue state is detected by the monitoring method of step S32 and the corresponding adjustment instruction is transmitted to the mechanical device of the student's desk, after the corresponding operation is performed, the total value of the difference rate accumulated by the S program nodes that have appeared currently is cleared, and the number of program nodes is decayed to β% of the current total value, and the difference rates generated by the adjacent program nodes are re-counted, and step S3 is repeated until the desk reaches the maximum adjustment angle and stops;

[0033] The size of the attenuation ratio β% is inversely proportional to the size of the ratio of 0 appearing in the subsequent monitoring difference rate, and the variation range of the attenuation ratio β% is [0, 60%].

[0034] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, through the concentration monitoring sub-module, uses the monitoring and hierarchical analysis of the pressure of the student's arm on the desk to judge the student's concentration at different time periods, which is more accurate for the student's listening status and has a wider range of applications than ordinary image recognition feedback; through the difference rate analysis sub-module, a statistical method for the difference rate of the student's attention corresponding to the learning status between adjacent time nodes is used to realize real-time monitoring of the student's learning status, which helps the system to accurately judge whether the student has learning fatigue in a short time, and make timely adjustments, thereby greatly improving the student's class efficiency; by adjusting the inclination angle of the desk through the adjustment module, it can help students to effectively relieve fatigue by adjusting their sitting posture when they are tired in the latter part of the course, thereby improving class efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0036] In the attached picture:

[0037] Figure 1 It is a schematic diagram of the system module composition of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1 The present invention provides a technical solution: an intelligent interactive teaching platform for an adjustable desk, comprising:

[0040] Data collection module, platform interaction module and adjustment module. The data collection module is used to obtain relevant information in the equipment used by students during the learning process; the platform interaction module is used to interactively monitor the teacher's class and the students' listening to the class; the adjustment module is used to output corresponding instructions through the students' class equipment. The data collection module, platform interaction module and output module are connected to each other in communication;

[0041] The platform interaction module includes a student learning status analysis module, which is used to analyze the real-time learning status of students through the interaction between teachers and students during class;

[0042] The student learning status analysis module further includes a concentration monitoring submodule, which is used to monitor the concentration of students in class;

[0043] Desk adjustment mechanical devices are provided on the outer sides of the corners of the adjustable desk, wherein the mechanical devices are connected to the outer sides of the corners of the desk via a number of adsorption devices, and the other end of the mechanical devices is electrically connected to the teaching display of the intelligent interactive teaching platform, and the control terminal in the teaching display outputs the adjustment instructions obtained by the detection operation method in real time.

[0044] The present invention, through the concentration monitoring submodule, uses the monitoring and hierarchical analysis of the pressure of the student's arm on the desk to judge the student's concentration at different time periods. Compared with ordinary image recognition feedback, it is more accurate for the student's listening status and has a wider range of applications; through the difference rate analysis submodule, a statistical method of the difference rate of the student's attention corresponding to the learning status between adjacent time nodes is used to realize real-time monitoring of the student's learning status, which helps the system to accurately judge whether the student has learning fatigue in a short time, and make timely adjustments, thereby greatly improving the student's class efficiency; through the adjustment module, the inclination angle of the desk is adjusted, which can help students to effectively relieve fatigue by adjusting their sitting posture when they are tired in the latter part of the course, thereby improving class efficiency.

[0045] The data collection module includes a teaching platform information collection module and a study desk information collection module. The teaching platform information collection module is used to obtain relevant information of the online teaching platform; the study desk information collection module is used to collect relevant information of the accompanying study desks used by students in class.

[0046] The platform interaction module also includes a desktop force detection module, a force sensor detection unit and a camera unit. The desktop force detection module is used to detect the pressure applied by students to the desktop; the force sensor detection unit is used to detect the force value in the target area of ​​the desk desktop; the camera unit is used to capture the student and desk image information.

[0047] The student learning status analysis module also includes a difference rate analysis submodule, which is used to analyze the difference rate value of the student learning status and the concentration node.

[0048] The output module includes a device adjustment module and a prompt module. The device adjustment module is used to adjust the relevant equipment on the student's desk; the prompt module is used to output prompts to concentrate through the teaching terminal when the teaching platform detects that the student's attention is too low.

[0049] In a preferred embodiment, the operation method of the intelligent interactive teaching platform mainly includes the following steps:

[0050] Step S1: accessing the relevant programs of the adjustable desk and its detection and operation method in the teaching terminal of the target teaching platform;

[0051] Step S2: During the teaching class, the pressure exerted by the student's arm on the desk surface is monitored in real time;

[0052] Step S3: predict the change of the nodes of the degree of students' concentration and teachers' teaching focus over time, and count the difference rate values ​​of students' learning status and concentration nodes. The interactive teaching platform inputs the final adjustment instructions into the adjustment mechanical device through the control terminal in the teaching display according to the difference rate information, and adjusts the student's matching desk in time;

[0053] Step S4: The system uses the prompt module to prompt students who have been in a high discrepancy rate for a long time, so as to help students better absorb the teaching content.

[0054] In this embodiment, step S2 further includes:

[0055] Step S21: After the teaching course begins, the control terminal in the teaching display transmits the class instruction to the desk adjustment mechanical device, and automatically adjusts the four stretching devices at the desk legs according to the camera on the teaching display to shoot the student's upper body at a constant angle, so that the student's face area is completely in the camera screen, and the length value of the desk support leg in the desk stretching device is fixed;

[0056] The lower corners of the adjustable desk are provided with four stretching devices that can be used to support the ground, and can be used to adjust the horizontal height of the desk tabletop relative to the ground;

[0057] Step S22: The force sensor detection unit set on the desk where books are placed and where the students' hands are placed acquires the detected pressure value F every 5 seconds. 总 , obtain the limit value F of the pressure values ​​of the two desks through the database 01 and the limit value F 02 and the desk pressure value F during the monitoring period 总 When the force sensor detection unit detects that the pressure value is less than the limit value F 01 When the force sensor detection unit detects that the pressure value is greater than the limit value F 01 And less than the limit value F 02 When the force sensor detection unit detects that the total pressure value is greater than the limit value F 02 When , it is determined that the current student is in the note-taking state, where the length of the monitoring period is m minutes, the value of m is determined by the total time of the online class, and the maximum value of m is 3;

[0058] Desk pressure value F 总 The specific method for obtaining F is: 总 =F1+F2, where F1 is the pressure value when the student places both hands normally on the desk, and F2 is the pressure value applied by the student holding the pen on the book on the desk.

[0059] F1 is the pressure value when the student puts both hands flat on the desk. F1 is a constant value. With or without, the value range of F1 is {0∪[μ1F 11 , μ2F 11 ]}, where μ1 is the minimum coefficient of the pressure on the table when the arm is placed flat on the table, μ2 is the maximum coefficient of the pressure on the table when the arm is placed flat on the table, F 11 is the reference value of the pressure exerted by the arm on the table obtained through the database; F2 is the pressure exerted by the student holding the pen on the book on the desk. F2 varies from person to person and has a large range of variation. The value range of F2 is {0∪[γ1F 21 ,γ2F 21]}, where γ1 is the minimum coefficient of the pressure on the desk caused by the student holding the pen, γ2 is the maximum coefficient of the pressure on the desk caused by the student holding the pen, F 21 is the reference value of the pressure of the student holding the pen on the desktop obtained through the database, γ2F 21 >μ2F 11 ,γ1F 21 <μ1F 11 ;

[0060] Since the difference between γ2 and γ1 is much larger than the difference between μ2 and μ1, the range of variation of F1 is much smaller than the range of variation of F2 when the difference between the two reference values ​​is not large. Therefore, the current learning status of students can be inferred by the change of F2 value. In particular, when the value of F1 is zero, the value of F2 is also zero.

[0061] In online teaching, from the perspective of optimizing the key points of students' feedback from lectures through the interaction between teachers and students, the important nodes of the teacher's teaching process mainly include the time when the teacher waits for students to think about the teaching content such as training exercises and the time when the teacher selects students to answer questions;

[0062] In the prior art, the intelligent interactive teaching platform only monitors the teaching quality of the teacher during the teaching process, and judges the students' class experience and learning efficiency parameters through the students' feedback on the teacher's class. However, in a specific teaching scenario, even if the teacher's teaching quality fully meets the teaching requirements of the corresponding intelligent interactive teaching platform and the students are very serious about the teacher's course learning attitude, there is still a possibility that the teacher's teaching rhythm and the student's listening concentration curve will have a large difference. During the key area time period of the teacher's class content, the students cannot concentrate in this time period, resulting in low learning efficiency.

[0063] This technical solution also solves the problem that the existing method of obtaining feedback on students' class images in the classroom will produce large differences in the recognition method of the teacher's concentration in different teaching periods due to the two different learning states of students taking notes and looking up to listen to the class. By monitoring and layered analysis of the pressure of students' arms on the desk, the concentration of students in different periods can be judged respectively. Compared with ordinary image recognition feedback, it is more accurate for students' listening status and has a wider range of applications.

[0064] In this embodiment, step S3 further includes:

[0065] Step S31: setting a number of program nodes in the online classroom, wherein the program node setting method mainly includes:

[0066] When the classroom terminal recognizes that the teacher releases a question on the online teaching platform for the first time, the current time is set to the first degree node 01, and when the teacher subsequently releases different questions on the platform, the current time is set to the first degree node 0X, where X is the total number of exercises currently released by the teacher in the classroom during the monitoring period;

[0067] When the classroom terminal recognizes that the teacher points the main screen transmission of answering questions to a student user on the online teaching platform for the first time, the current time is set to the second degree node 01, and when the teacher subsequently points the main screen transmission of answering questions to other student users on the platform, the current time is set to the second degree node 0Y, where Y is the total number of times the teacher answers questions in class during the monitoring period;

[0068] Count the number of times in the classroom when the time difference between the first degree node 0I1 and the second degree node 0I2 is less than η seconds, and the total number is W. Then in the current online teaching classroom, the number of attention nodes that have appeared is S=X+YW, where η is the minimum node separation time, I1 is the corresponding number of times a question is randomly selected from the X times of questions posted, and I2 is the corresponding number of times a question is randomly selected from the Y times of students answering questions.

[0069] Step S32: The system counts the difference rate between the student's learning status and the concentration node between two adjacent attention nodes that have appeared in the classroom, where the difference rate value is 0 or 1, and outputs the total difference rate value currently monitored by the student. When the difference rate exceeds the rated value, it is determined that the current student has reached a state of learning fatigue.

[0070] In a preferred embodiment, if two adjacent attention nodes are the first program node and the second program node respectively according to the change of time, the difference rate of the student learning state is 0 when it is the recording state, and the difference rate of the student learning state is 1 when it is the listening state or the mixed state;

[0071] If two adjacent attention nodes are both the second program nodes according to the change in time, the difference rate of the student's learning state is 0 when it is the listening state, and the difference rate of the student's learning state is 1 when it is the recording state or the mixed state;

[0072] In the remaining cases, the difference rate of the student's learning status is 0 for the mixed status, and 1 for the listening status or recording status.

[0073] The system distinguishes the situations where adjacent nodes are different program nodes, and analyzes the situations where students should focus on different positions at different times in class, thus improving the monitoring of students' concentration in class.

[0074] This technical solution aims to solve the problem that students cannot concentrate on listening to the class within the target time period, and adjusts the position and function of the corresponding equipment on the desk of the teaching platform;

[0075] This technical solution solves the problem that some students spend a lot of energy taking notes or listening to lectures at their desks during non-teaching time periods, but cannot concentrate during subsequent teaching time periods, which greatly reduces their learning efficiency. By using statistical methods to calculate the difference between students' attention and learning states at adjacent time nodes, real-time monitoring of students' learning states is achieved, helping the system to accurately determine whether students are experiencing learning fatigue in a short period of time and make timely adjustments, greatly improving students' class efficiency.

[0076] In this embodiment, step S32 further includes:

[0077] Step S321: When the system recognizes that the student has reached a fatigue state, the control terminal in the teaching display outputs an adjustment command to the adjustment mechanism in the desk. After receiving the command, the adjustment mechanism controls the joystick connected to the desk surface under the desk to swing toward the student's seat, and controls the swing angle of the desk through the adsorption devices around the corners of the desk. Where S0 is the total difference rate of the students currently monitored in step S32, and ψ is the adjustment angle limit coefficient;

[0078] Step S322: When the swing angle θ exceeds the maximum safe placement angle, the camera is used to capture and identify the placement position of the student's book on the desk surface, and the horizontal area on one side of the swing angle direction of the book placement position is located, and the barrier device in the horizontal area is extended to ensure that the book can stay stably on the desktop.

[0079] Among them, the material of the barrier device is flexible sponge, which can help students feel comfortable when their arms touch it.

[0080] 70%-80% of students have incorrect sitting postures when studying, which are manifested by their heads being too low, tilted, shoulders held high, and necks being overextended and flexed. Students who study in this posture for a long time are not only prone to fatigue, but also suffer from myopia, hunchbacks, and may even have a greatly increased chance of developing cervical spondylosis in adulthood. These problems can be alleviated by tilting the desktop. By adjusting the angle of the table to suit people's needs, it can effectively correct children's reading and writing postures, ensure correct eye habits, reduce pressure on the cervical and lumbar vertebrae, and effectively prevent myopia and cervical and lumbar diseases.

[0081] The system can adjust the tilt angle of the desk to help students relieve fatigue by effectively adjusting their sitting posture when they feel tired in the latter part of the course, thereby improving class efficiency.

[0082] In step S321 of the present embodiment, if the student's learning fatigue state is detected by the monitoring method of step S32 and the corresponding adjustment instruction is transmitted to the mechanical device of the student's desk, after the corresponding operation is performed, the total value of the difference rate accumulated by the S program nodes that have appeared currently is cleared, and the number of program nodes is decayed to β% of the current total value, and the difference rates generated by the adjacent program nodes are re-counted, and step S3 is repeated until the desk reaches the maximum adjustment angle and stops;

[0083] The size of the attenuation ratio β% is inversely proportional to the size of the ratio of 0 appearing in the subsequent monitoring difference rate, and the variation range of the attenuation ratio β% is [0, 60%].

[0084] Since each student has a different maximum concentration level at the beginning of the course, during the teaching process, although the concentration of some students decreases over time according to the concentration curve obtained by the system, at a fixed time point, the concentration of the students is different, and the reminder effect produced by the system prompts is also different.

[0085] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0086] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent interactive teaching platform for an adjustable desk, characterized in that: It includes a data acquisition module, a platform interaction module, an adjustment module and an output module. The data acquisition module is used to obtain relevant information in the equipment used by students during the learning process; the platform interaction module is used to interactively monitor the teacher's class and the students' listening to the class; the adjustment module is used to output corresponding instructions through the students' class equipment, and the data acquisition module, the platform interaction module and the output module are connected to each other in communication; The platform interaction module includes a student learning status analysis module, which is used to analyze the real-time learning status of students through the interaction between teachers and students during class; The student learning status analysis module further includes a concentration monitoring submodule, which is used to monitor the concentration of students in class; Desk adjustment mechanical devices are provided on the outer sides of the corners of the adjustable desk, wherein the mechanical devices are connected to the outer sides of the corners of the desk via a plurality of adsorption devices, and the other end of the mechanical devices is electrically connected to the teaching display of the intelligent interactive teaching platform, and the control terminal in the teaching display outputs the adjustment instructions obtained by the detection operation method in real time; The data collection module includes a teaching platform information collection module and a study desk information collection module. The teaching platform information collection module is used to obtain relevant information of the online teaching platform; the study desk information collection module is used to collect relevant information of the matching study desks used by students in class; The platform interaction module also includes a desktop force detection module, a force sensor detection unit and a camera unit. The desktop force detection module is used to detect the pressure applied by the student to the desktop; the force sensor detection unit is used to detect the force value in the target area of ​​the desk desktop; the camera unit is used to capture the student and desk image information; The student learning status analysis module also includes a difference rate analysis submodule, which is used to analyze the difference rate value between the student learning status and the concentration node; The output module includes a device adjustment module and a prompt module. The device adjustment module is used to adjust the relevant equipment on the student's desk; the prompt module is used to output the prompt content of concentrating attention through the teaching terminal when the teaching platform detects that the student's attention is too low; The operation method of the intelligent interactive teaching platform mainly includes the following steps: Step S1: accessing the relevant programs of the adjustable desk and its detection and operation method in the teaching terminal of the target teaching platform; Step S2: During the teaching class, the pressure exerted by the student's arm on the desk surface is monitored in real time; Step S3: predicting the change of the nodes corresponding to the students' concentration and the teachers' teaching focus over time, and counting the difference rate between the students' learning status and the concentration nodes. The interactive teaching platform inputs the finally obtained adjustment instructions into the adjustment mechanical device through the control terminal in the teaching display according to the difference rate information, and adjusts the student's matching desk in time; Step S4: The system prompts students who have been in a high discrepancy rate for a long time through a prompt module, so as to help students better absorb the teaching content; The step S2 further comprises: Step S21: After the teaching course begins, the control terminal in the teaching display transmits the class instruction to the desk adjustment mechanical device, and automatically adjusts the four stretching devices at the desk legs according to the camera on the teaching display to shoot the student's upper body at a constant angle, so that the student's face area is completely in the camera screen, and the length value of the desk support leg in the desk stretching device is fixed; The lower corners of the adjustable desk are provided with four stretching devices that can be used to support the ground, and can be used to adjust the horizontal height of the desk tabletop relative to the ground; Step S22: The force sensor detection unit set on the desk where books are placed and where the students' hands are placed acquires the detected pressure value F every 5 seconds. 总 , obtain the limit value F of the pressure values ​​of the two desks through the database 01 and the limit value F 02 and the desk pressure value F during the monitoring period 总 When the force sensor detection unit detects that the pressure value is less than the limit value F 01 When the force sensor detection unit detects that the pressure value is greater than the limit value F 01 And less than the limit value F 02 When the force sensor detection unit detects that the total pressure value is greater than the limit value F 02 When , it is determined that the current student is in the note-taking state, where the length of the monitoring period is m minutes, the value of m is determined by the total time of the online class, and the maximum value of m is 3; Desk pressure value F 总 The specific method of obtaining is: , where F1 is the pressure value when the student's hands are placed normally on the desk, and F2 is the pressure value applied by the student holding the pen on the book on the desk; The step S3 further comprises: Step S31: setting a number of program nodes in the online classroom, wherein the program node setting method mainly includes: When the classroom terminal recognizes that the teacher releases a question on the online teaching platform for the first time, the current time is set to the first degree node 01, and when the teacher subsequently releases different questions on the platform, the current time is set to the first degree node 0X, where X is the total number of exercises currently released by the teacher in the classroom during the monitoring period; When the classroom terminal recognizes that the teacher points the main screen transmission of answering questions to a student user on the online teaching platform for the first time, the current time is set to the second degree node 01, and when the teacher subsequently points the main screen transmission of answering questions to other student users on the platform, the current time is set to the second degree node 0Y, where Y is the total number of times the teacher answers questions in class during the monitoring period; Count the number of times that the time difference between the first degree node OI1 and the second degree node OI2 in the classroom is less than n seconds, and the number of attention nodes that have appeared in the current online teaching classroom is W. , where η is the minimum node separation time, I1 is the corresponding number of randomly selected questions published in X times, and I2 is the corresponding number of randomly selected answers in Y times; Step S32: The system counts the difference rate between the student's learning status and the concentration node between two adjacent attention nodes that have appeared in the classroom, where the difference rate value is 0 or 1, and outputs the total difference rate value currently monitored by the student. When the difference rate exceeds the rated value, it is determined that the current student has reached a state of learning fatigue.

2. The intelligent interactive teaching platform for an adjustable desk according to claim 1, characterized in that: The step S32 further comprises: Step S321: When the system recognizes that the student has reached a fatigue state, the control terminal in the teaching display outputs an adjustment command to the adjustment mechanism in the desk. After receiving the command, the adjustment mechanism controls the joystick connected to the desk surface under the desk to swing toward the student's seat, and controls the swing angle of the desk through the adsorption devices around the corners of the desk. , where S0 is the total difference rate of the students currently monitored in step S32, and ψ is the adjustment angle limit coefficient; Step S322: When the swing angle θ exceeds the maximum safe placement angle, the camera is used to capture and identify the placement position of the student's book on the desk surface, and the horizontal area on one side of the swing angle direction of the book placement position is located, and the blocking device in the horizontal area is extended to ensure that the book can stay stably on the desktop.

3. The intelligent interactive teaching platform for an adjustable desk according to claim 2, characterized in that: In step S321, if the student's learning fatigue state is detected by the monitoring method of step S32 and the corresponding adjustment instruction is transmitted to the mechanical device of the student's desk, after the corresponding operation is performed, the total value of the difference rate accumulated by the S program nodes that have appeared currently is cleared, and the number of program nodes is decayed to β% of the current total value, and the difference rates generated by the adjacent program nodes are re-counted, and step S3 is repeated until the desk reaches the maximum adjustment angle and stops; Among them, the size of the attenuation ratio β% is inversely proportional to the size of the ratio of 0 in the subsequent monitoring difference rate, and the range of the attenuation ratio β% is .

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