CN114722450A - Multimedia classroom light-adjustable equipment management system based on three-dimensional simulation - Google Patents
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Abstract
The invention discloses a three-dimensional simulation-based management system for dimmable equipment in a multimedia classroom, and belongs to the technical field of management of dimmable equipment. The device comprises a data acquisition module, an eyeball tracking module, a three-dimensional simulation module, a data updating module, a data processing module and a light ray adjusting module; the output end of the data acquisition module is electrically connected with the input ends of the three-dimensional simulation module and the data updating module; the output end of the eyeball tracking module is electrically connected with the input ends of the three-dimensional simulation module and the data updating module; the output end of the data updating module is electrically connected with the output ends of the three-dimensional simulation module and the data processing module; the output end of the data processing module is electrically connected with the input end of the light ray adjusting module; the invention carries out three-dimensional simulation modeling through data acquisition to obtain the optimal adjusted brightness value for adjusting the brightness adapted to human eyes, and an automatic adjusting module is added to automatically adapt when manual adjustment cannot be carried out.
Description
Technical Field
The invention relates to the technical field of dimming equipment management, in particular to a three-dimensional simulation-based dimming equipment management system for a multimedia classroom.
Background
With the development of information technology, a large number of high and new technology products and intelligent products appear in the education field, the modernization of education is realized in an effort, and the teaching effect of teachers is improved. Multimedia classrooms have come under the trend and are fully accepted by the industry, and with the continuous popularization and application of multimedia classrooms, almost all college teaching realizes new media classrooms at present, but the problems therewith are gradually highlighted.
The multimedia classroom integrates the teaching function and effect which can be realized by common classroom, audio-visual classroom and computer room, and is a teaching system which is built by integrating the projection function, the video playback function and the multimedia computer auxiliary teaching function according to the teaching requirement and playing their roles. However, in the actual use process, due to the particularity of the screen, the screen is particularly sensitive to light, and if the brightness is too high, the screen can stimulate the eyes of students and damage the eye health; the brightness is too low, the screen content is difficult to see clearly, the teaching effect is influenced, and the visual effect is also influenced.
In the prior art, a general classroom adopts a sliding window curtain to shield hard light or a teacher to adjust a screen almost, and reliable scientific basis and accurate effect are lacked, so people urgently need a multimedia classroom capable of adjusting light scientifically, and the multimedia classroom can conveniently and flexibly apply various media and various teaching software to implement media combination teaching.
Disclosure of Invention
The invention aims to provide a three-dimensional simulation-based management system for dimmable equipment in a multimedia classroom, which aims to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: a multimedia classroom dimmable equipment management system based on three-dimensional simulation comprises a data acquisition module, an eyeball tracking module, a three-dimensional simulation module, a data updating module, a data processing module and a light adjusting module;
the output end of the data acquisition module is electrically connected with the input ends of the three-dimensional simulation module and the data updating module; the output end of the eyeball tracking module is electrically connected with the input ends of the three-dimensional simulation module and the data updating module; the output end of the data updating module is electrically connected with the output ends of the three-dimensional simulation module and the data processing module; the output end of the data processing module is electrically connected with the input end of the light ray adjusting module;
the data acquisition module is used for acquiring key point data and ambient light data of a multimedia classroom; the eyeball tracking module is used for tracking and recording the pupil enlargement and the pupil reduction of human eyes; the three-dimensional simulation module is used for modeling pupils of human eyes of students in multimedia classrooms and classrooms; the data updating module is used for updating data information in real time; the data processing module is used for processing the acquired data and judging whether to adjust the light; the light ray adjusting module is used for manually or automatically adjusting light rays;
according to the technical scheme, the data acquisition module comprises an ambient light acquisition unit and an equipment acquisition unit;
the environment light ray acquisition unit is used for acquiring and recording the light ray of the environment; the equipment acquisition unit is used for acquiring data of each equipment in a multimedia classroom;
the device acquisition unit comprises a building entity, a window and internal devices, key point positions such as a marking blackboard, a desk, a platform, a multimedia screen and the like, and the ambient light acquisition unit acquires natural light intensity and natural light source directions of different time periods outside the window and integrates the light intensity and the directions of a plurality of indoor point light sources, so as to provide data support for three-dimensional simulation;
according to the technical scheme, the eyeball tracking module comprises a pupil acquisition unit and a pupil tracking unit;
the pupil acquisition unit is used for acquiring initial state data of a pupil; the pupil tracking unit is used for collecting and recording the change data of the pupil;
the pupil acquisition unit firstly acquires data of the pupils of human eyes in a normal light mode, and determines the change range of the pupils in the normal light mode so as to facilitate later comparison; the pupil tracking unit is used for collecting change data when the pupil changes reversely so as to determine whether the pupil is enlarged or reduced and how to adjust the brightness value of the light.
According to the technical scheme, the three-dimensional simulation module comprises an equipment modeling unit, a human eye modeling unit and a scene creating unit;
the equipment modeling unit is used for modeling facility equipment in a multimedia classroom; the human eye modeling unit is used for modeling the data change of the human eye pupil; the scene creating unit is used for modeling according to the change of the ambient light;
the equipment modeling unit and the human eye modeling unit comprise sample line drawing, spline analysis processing, picture processing, modeling effect checking and analysis and model optimization;
the scene creating unit comprises a morning scene, a noon scene and a evening scene;
in the modeling process, three-dimensional modeling is carried out by utilizing AutoCAD and 3ds max software, and a plurality of scene simulations are carried out simultaneously, because the light rays in the morning, the middle and the evening are different and representative, and the light ray intensity in the morning is a common level; noon is a high intensity rating; the intensity level is low at night, and the factors of environmental change are considered, so that the result is more accurate.
According to the technical scheme, the data updating module comprises a data updating unit and a data replacing unit;
the data updating unit is used for updating the data acquired in real time; the data replacement unit is used for replacing new data to ensure the real-time performance of the data;
the data updating module continuously updates data according to real-time data, and ensures that abnormal changes of pupils of students can be found in the first time, so that the aims of quickly adjusting light, reducing damage to the eyes of the students and enhancing teaching effect are fulfilled.
According to the technical scheme, the data processing module comprises a computing unit, a checking unit and a visualization unit;
the calculating unit is used for calculating the enlarging or reducing degree of the pupil; the verification unit is used for judging the relation between the pupil change and the external environment light and the indoor screen light; the visualization unit is used for learning effect supervision;
the visual unit analyzes the data according to the randomly collected pupil data of human eyes, and when the data of the pupil of human eyes cannot be identified and lost, the data of the pupil cannot be identified when the student dozes in a classroom.
According to the above technical solution, the calculating step of the calculating unit is as follows:
s1, randomly calling initial data of pupils of the eyes of students watching multimedia screens indoors, calling one bit for each horizontal row, and recording a point coordinate (x) on the edge of the horizontal rowi，yi，z)；
S2, acquiring the current eye pupil initial data of the student in the step S1, and recording the current coordinate (x) of the same point on the edge as the step S1i new，yi new，z)；
S3, according to the formula:
calculating the linear distance d of the pupil enlargement or reduction at xi new＞xiWhen d exceeds a threshold value, corresponding light ray adjustment is carried out;
in the modeling process, a three-dimensional rectangular coordinate system is established by taking a classroom inner wall corner as a coordinate starting point, the classroom width as an X axis, the classroom height as a Y axis and the classroom length as a Z axis, and simultaneously, edge point coordinates are recorded.
According to the technical scheme, the checking module comprises the following checking steps:
s8-1, checking d, whether the d exceeds a threshold value, and according to xi newAnd xiJudging the enlargement or the reduction of the pupil;
s8-2, checking ambient light, collecting related data, judging the magnitude relation between the brightness of the external environment and the brightness of the indoor screen, calculating corresponding screen brightness, and if the brightness of the external environment is greater than the brightness of the indoor screen, entering the step S8-3; if yes, go to step S8-4;
s8-3, when the brightness of the external environment is larger than the brightness of the indoor screen, the indoor screen is relatively dark, the pupil is enlarged, and the brightness needs to be increased according to the formula:
L0＝L1+k0d+L2k2，k0＞0，k2＞0
wherein L is0Is the current brightness value, L1When not regulatedBrightness value of screen, L2Is the ambient light brightness value, k0、k2Is an influence coefficient;
s8-4, when the brightness of the external environment is less than the brightness of the indoor screen, the indoor screen is relatively bright, the pupil is contracted, and the brightness is adjusted to be low according to the formula:
L0＝L1+k1d+L2k3，k1＜0，k3＜0
wherein k is1、k3Is the influence coefficient.
Due to the influence of the brightness of the external environment, the brightness of the indoor screen is still slightly bright or dark when reaching the normal use condition, so that the influence of the external environment is added into the formula for adjusting the brightness value according to the influence coefficient, and the result is ensured to be more accurate.
According to the technical scheme, the light ray adjusting module comprises a manual adjusting unit and an automatic adjusting unit;
the manual adjusting unit is used for performing manual adjustment according to an adjusting result of the data processing module; the automatic adjusting unit is used for carrying out automatic light adjustment according to big data
According to the technical scheme, the automatic adjusting unit comprises the following adjusting steps:
s10-1, recording related data after each manual adjustment, establishing user behavior habits, and performing adjustment operations in various scenes;
s10-2, establishing a screen comfort function model, and obtaining the screen comfort function model by averaging the brightness adjustment operations of the users in different scenes;
s10-3, using the function model of S10-2 to automatically control the simple adjustment of the brightness.
In step S10-1, after each manual adjustment, a recording action is performed, including turning up the brightness or turning down the brightness, and the ambient light intensity L at that time is recordedRing (C)And the pupil change size dBecomeForm a set of classes { L }Height of ring、dBecomes high、NHeight of}、{LRing lower、dBecome low、NIs low inOnce every record, N + 1; in step S10-2, when the number of times of recording N exceeds the threshold value, the functional formula is used
I.e. in the state of needing to be heightened
In the low-level state of the requirement is
In the automatic control mode, when the ambient light intensity LRing (C)When the pupil is within the recording range of manual adjustment and is prompted for a period of time, and when the pupil is not manually adjusted, the pupil changes according to the change size dBecomeAutomatically performing brightness adjustment up or down with a value of LNew。
Compared with the prior art, the invention has the following beneficial effects: the data acquisition module is used for acquiring environmental data and equipment data of a multimedia classroom, and data support is provided for three-dimensional simulation modeling; the eyeball tracking module is used for tracking the change of the pupils of the human eyes, and the adjustment is carried out according to the change of the human eyes in the aspect of adjusting the brightness, so that the eye-tracking module is more suitable for the actual life; the three-dimensional simulation module is used for modeling, so that experimental data can be better approached, and the accuracy of the adjusting result is ensured; the data updating module is used for updating and replacing data in real time, so that the real-time performance and accuracy of the data are guaranteed, the data can be adjusted in time, and the timeliness of the adjustment is guaranteed; the data processing module is used for calculating and adjusting the accurate numerical value of the brightness, an equation model can be established according to the feedback of the current situation, the optimal brightness value is obtained through calculation, and manual adjustment is carried out; the light ray adjusting module is utilized to establish an automatic adjusting model according to a manual adjusting result, an average brightness value is established under the condition of increasing or decreasing, and when the pupil changes, the average brightness value is directly adjusted according to corresponding changes, so that automatic adaptation can be ensured when no time or manual adjustment is forgotten.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic block structure diagram of a three-dimensional simulation-based multimedia classroom dimmable device management system according to the present invention;
FIG. 2 is a schematic diagram of the steps of a computing unit of a light adjustable device management system for a multimedia classroom based on three-dimensional simulation according to the present invention;
FIG. 3 is a system flow diagram of a three-dimensional simulation based light adjustable device management system for a multimedia classroom;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions: in fig. 1, a system for managing dimmable devices in a multimedia classroom based on three-dimensional simulation includes a data acquisition module, an eyeball tracking module, a three-dimensional simulation module, a data update module, a data processing module, and a light adjustment module;
the output end of the data acquisition module is electrically connected with the input ends of the three-dimensional simulation module and the data updating module; the output end of the eyeball tracking module is electrically connected with the input ends of the three-dimensional simulation module and the data updating module; the output end of the data updating module is electrically connected with the output ends of the three-dimensional simulation module and the data processing module; the output end of the data processing module is electrically connected with the input end of the light ray adjusting module;
the data acquisition module is used for acquiring key point data and ambient light data of a multimedia classroom; the eyeball tracking module is used for tracking and recording the pupil enlargement and the pupil reduction of human eyes; the three-dimensional simulation module is used for modeling pupils of human eyes of students in multimedia classrooms and classrooms; the data updating module is used for updating data information in real time; the data processing module is used for processing the acquired data and judging whether to adjust the light; the light ray adjusting module is used for manually or automatically adjusting light rays;
the data acquisition module comprises an ambient light acquisition unit and an equipment acquisition unit;
the environment light ray acquisition unit is used for acquiring and recording the light ray of the environment; the equipment acquisition unit is used for acquiring data of each equipment in a multimedia classroom;
the device acquisition unit comprises a building entity, a window and internal devices, key point positions such as a marking blackboard, a desk, a platform, a multimedia screen and the like, and the ambient light acquisition unit acquires natural light intensity and natural light source directions of different time periods outside the window and integrates the light intensity and the directions of a plurality of indoor point light sources, so as to provide data support for three-dimensional simulation;
the eyeball tracking module comprises a pupil acquisition unit and a pupil tracking unit;
the pupil acquisition unit is used for acquiring initial state data of a pupil; the pupil tracking unit is used for acquiring and recording the change data of the pupil;
the pupil acquisition unit firstly acquires data of the pupils of human eyes in a normal light mode, and determines the change range of the pupils in the normal light mode so as to facilitate later comparison; the pupil tracking unit is used for collecting change data when the pupil changes reversely so as to determine whether the pupil is enlarged or reduced and how to adjust the brightness value of the light.
The three-dimensional simulation module comprises an equipment modeling unit, a human eye modeling unit and a scene creating unit;
the equipment modeling unit is used for modeling facility equipment in a multimedia classroom; the human eye modeling unit is used for modeling the data change of the human eye pupil; the scene creating unit is used for modeling according to the change of the ambient light;
the equipment modeling unit and the human eye modeling unit comprise a sampling line drawing, spline analysis processing, picture processing, modeling effect checking and analysis and model optimization;
the scene creating unit comprises a morning scene, a noon scene and a evening scene;
according to the technical scheme, the data updating module comprises a data updating unit and a data replacing unit;
the data updating unit is used for updating the data acquired in real time; the data replacement unit is used for replacing new data to ensure the real-time performance of the data;
the data updating module continuously updates data according to real-time data, and ensures that abnormal changes of pupils of students can be found in the first time, so that the aims of quickly adjusting light, reducing damage to the eyes of the students and enhancing teaching effect are fulfilled.
The data processing module comprises a computing unit, a checking unit and a visualization unit;
the calculating unit is used for calculating the enlarging or reducing degree of the pupil; the verification unit is used for judging the relation between the pupil change and the external environment light and the indoor screen light; the visualization unit is used for learning effect supervision;
in fig. 2, the calculation steps of the calculation unit are as follows:
s1, randomly calling initial data of pupils of the eyes of students watching multimedia screens indoors, calling one bit for each horizontal row, and recording a point coordinate (x) on the edge of the horizontal rowi，yi，z)；
S2, acquiring the current pupil initial data of the eyes of the student in the step S1, and recording the current coordinate (x) of the same point on the edge of the pupil as the current coordinate in the step S1i new，yi new，z)；
S3, according to the formula:
calculating the linear distance d of pupil enlargement or pupil reduction at xi new＞xiWhen d exceeds a threshold value, corresponding light ray adjustment is carried out;
in this embodiment, a scene is set as 8 am, light is bright, a three-dimensional simulation model is established by taking a classroom inner wall corner as a coordinate starting point, classroom width as an X axis, classroom height as a Y axis and classroom length as a Z axis, the pupil initial data coordinates of one of the students are taken as (200, 120, 300), the current pupil data is taken as (202, 121, 300), and calculation is performed to obtain the pupil initial data coordinates
The checking module carries out the checking steps as follows:
s8-1, checking d, whether the d exceeds a threshold value, and according to xi newAnd xiJudging the enlargement or the reduction of the pupil;
s8-2, checking ambient light, collecting relevant data, judging the size relation between the brightness of the external environment and the brightness of the indoor screen, calculating the corresponding screen brightness, and if the brightness of the external environment is larger than the brightness of the indoor screen, entering the step S8-3; if yes, go to step S8-4;
s8-3, when the brightness of the external environment is larger than the brightness of the indoor screen, the indoor screen is relatively dark, the pupil is enlarged, and the brightness needs to be increased according to the formula:
L0＝L1+k0d+L2k2，k0＞0，k2＞0
wherein L is0Is the current brightness value, L1Is the brightness value of the screen when not adjusted, L2Is the ambient light brightness value, k0、k2Is an influence coefficient;
s8-4, when the brightness of the external environment is less than the brightness of the indoor screen, the indoor screen is relatively bright, the pupil is contracted, and the brightness is adjusted to be low according to the formula:
L0＝L1+k1d+L2k3，k1＜0，k3＜0
wherein k is1、k3Is the influence coefficient.
In the present embodiment, the threshold is set to 2 because
202 is more than 200; thus indicating pupil dilation, luminance value
The light ray adjusting module comprises a manual adjusting unit and an automatic adjusting unit;
the manual adjusting unit is used for performing manual adjustment according to an adjusting result of the data processing module; the automatic adjusting unit is used for carrying out automatic light adjustment according to big data
The adjusting steps of the automatic adjusting unit are as follows:
s10-1, recording related data after each manual adjustment, establishing user behavior habits, and performing adjustment operations in various scenes;
s10-2, establishing a screen comfort function model, and obtaining the screen comfort function model by averaging the brightness adjustment operations of the users in different scenes;
s10-3, using the function model of S10-2 to automatically control the simple adjustment of the brightness.
In step S10-1, after each manual adjustment, a recording action is performed, including turning up the brightness or turning down the brightness, and the ambient light intensity L at that time is recordedRing(s)And the pupil change size dBecomeForm a set of classes { L }Height of ring、dBecomes high、NHeight of}、{LRing lower、dBecome low、NIs low inOnce every record, N + 1; in step S10-2, when the number of times of recording N exceeds the threshold value, the functional formula is used
I.e. in the state of needing to be heightened
In the state of needing to be turned down is
In the automatic control mode, when the ambient light intensity LRing (C)Varying the size d according to the pupil while in the recording range of the manual adjustmentBecomePerforming a brightness up or down operation with a value of LNew。
In this embodiment, N is set to 20, and after the operations of increasing and decreasing the brightness are performed 20 times, the average value is calculated by using the functional formula:
after prompting, manual adjustment is not carried out for a period of time, the system automatically adjusts the brightness value to be LHeight ofOr LIs low in。
The working principle of the invention is as follows: the data acquisition module is used for acquiring environmental data and equipment data of a multimedia classroom, and data support is provided for three-dimensional simulation modeling; the eyeball tracking module is utilized to track the change of the pupils of human eyes, the brightness is adjusted according to the change of the human eyes, and meanwhile, data support is provided for three-dimensional simulation modeling; modeling is carried out by utilizing a three-dimensional simulation module, so that the brightness adjusting operation under multiple scenes and various pupil changes is realized; the data updating module is used for updating and replacing data in real time, so that the real-time performance and accuracy of the data are guaranteed; the data processing module is used for calculating the accurate numerical value of the brightness adjustment, an equation model can be established according to the feedback of the current situation, the optimal brightness value is calculated, and manual adjustment is carried out; and an automatic adjusting model is established according to a manual adjusting result by utilizing the light adjusting module, so that an automatic adjusting mode is realized, and automatic adaptation can be performed when manual adjustment cannot be performed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A multimedia classroom dimmable equipment management system based on three-dimensional simulation is characterized in that: the system comprises a data acquisition module, an eyeball tracking module, a three-dimensional simulation module, a data updating module, a data processing module and a light ray adjusting module;
the output end of the data acquisition module is electrically connected with the input ends of the three-dimensional simulation module and the data updating module; the output end of the eyeball tracking module is electrically connected with the input ends of the three-dimensional simulation module and the data updating module; the output end of the data updating module is electrically connected with the output ends of the three-dimensional simulation module and the data processing module; the output end of the three-dimensional simulation module is electrically connected with the input end of the data processing module; the output end of the data processing module is electrically connected with the input end of the light ray adjusting module;
the data acquisition module is used for acquiring key point data and ambient light data of a multimedia classroom; the eyeball tracking module is used for tracking and recording the pupil enlargement and the pupil reduction of human eyes; the three-dimensional simulation module is used for modeling pupils of human eyes of students in multimedia classrooms and classrooms; the data updating module is used for updating data information in real time; the data processing module is used for processing the acquired data and judging whether to adjust the light; the light ray adjusting module is used for manually or automatically adjusting light rays.
2. The system for managing the dimmable devices in the multimedia classroom based on three-dimensional simulation as claimed in claim 1, wherein: the data acquisition module comprises an ambient light acquisition unit and an equipment acquisition unit;
the environment light ray acquisition unit is used for acquiring and recording the light rays of the environment; the equipment acquisition unit is used for acquiring data of each equipment in a multimedia classroom.
3. The system for managing the dimmable devices in the multimedia classroom based on three-dimensional simulation as claimed in claim 1, wherein: the eyeball tracking module comprises a pupil acquisition unit and a pupil tracking unit;
the pupil acquisition unit is used for acquiring initial state data of a pupil; the pupil tracking unit is used for collecting and recording the pupil change data.
4. The system for managing the dimmable devices in the multimedia classroom based on three-dimensional simulation as claimed in claim 1, wherein: the three-dimensional simulation module comprises an equipment modeling unit, a human eye modeling unit and a scene creating unit;
the equipment modeling unit is used for modeling facility equipment in a multimedia classroom; the human eye modeling unit is used for modeling the data change of the human eye pupil; the scene creating unit is used for modeling according to the change of the ambient light;
the equipment modeling unit and the human eye modeling unit comprise sample line drawing, spline analysis processing, picture processing, modeling effect checking and analysis and model optimization;
the scene creating unit comprises a morning scene, a noon scene and a evening scene.
5. The system for managing the dimmable devices in the multimedia classroom based on three-dimensional simulation as claimed in claim 1, wherein: the data updating module comprises a data updating unit and a data replacing unit;
the data updating unit is used for updating the data acquired in real time; the data replacement unit is used for replacing new data, and the real-time performance of the data is guaranteed.
6. The system for managing the dimmable devices in the multimedia classroom based on three-dimensional simulation as claimed in claim 1, wherein: the data processing module comprises a computing unit, a checking unit and a visualization unit;
the calculating unit is used for calculating the enlarging or reducing degree of the pupil; the verification unit is used for judging the relation between the pupil change and the external environment light and the indoor screen light; the visualization unit is used for learning effect supervision;
the visual unit analyzes the data according to the randomly collected pupil data of human eyes, and when the data of the pupil of human eyes cannot be identified and lost, the data of the pupil cannot be identified when the student dozes in a classroom.
7. The system as claimed in claim 6, wherein the system comprises: the calculation steps of the calculation unit are as follows:
s1 random access of students watching multimedia screen indoorsThe initial data of the pupil of the human eye, one bit is taken in each horizontal row, and the coordinate of a point on the edge of the initial data is recorded as (x)i，yi，z)；
S2, acquiring the current pupil initial data of the eyes of the student in the step S1, and recording the current coordinate (x) of the same point on the edge of the pupil as the current coordinate in the step S1i new，yi new，z)；
S3, according to the formula:
calculating the linear distance d of pupil enlargement or pupil reduction at xi new＞xiWhen d exceeds a threshold, corresponding light adjustment is performed.
8. The system as claimed in claim 7, wherein the system comprises: the checking module carries out the checking steps as follows:
s8-1, checking d, whether the d exceeds a threshold value, and according to xi newAnd xiJudging the enlargement or the reduction of the pupil;
s8-2, checking ambient light, collecting related data, judging the magnitude relation between the brightness of the external environment and the brightness of the indoor screen, calculating corresponding screen brightness, and if the brightness of the external environment is greater than the brightness of the indoor screen, entering the step S8-3; if yes, go to step S8-4;
s8-3, when the brightness of the external environment is larger than the brightness of the indoor screen, the indoor screen is relatively dark, the pupil is enlarged, and the brightness should be increased according to the formula:
L0＝L1+k0d+L2k2，k0＞0，k2＞0
wherein L is0Is the current brightness value, L1Is the brightness value of the screen when not adjusted, L2Is the ambient light brightness value, k0、k2Is the influence coefficient;
s8-4, when the brightness of the external environment is less than the brightness of the indoor screen, the indoor screen is relatively bright, the pupil is contracted, and the brightness is adjusted to be low according to the formula:
L0＝L1+k1d+L2k3，k1＜0，k3＜0
wherein k is1、k3Is the influence coefficient.
9. The system for managing the dimmable devices in the multimedia classroom based on three-dimensional simulation as claimed in claim 1, wherein: the light ray adjusting module comprises a manual adjusting unit and an automatic adjusting unit;
the manual adjusting unit is used for performing manual adjustment according to an adjusting result of the data processing module; the automatic adjusting unit is used for carrying out automatic light adjustment according to the big data.
10. The system as claimed in claim 9, wherein the system comprises: the automatic adjusting unit comprises the following adjusting steps:
s10-1, recording related data after each manual adjustment, establishing user behavior habits, and performing adjustment operations in various scenes;
s10-2, establishing a screen comfort function model, and obtaining the screen comfort function model by averaging the brightness adjustment operations of the users in different scenes;
s10-3, using the function model of S10-2 to automatically control the simple adjustment of the brightness.
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